X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2076893b534cccf9542d63197af24afe09c4eb36..63e1921d0be4956ab729735189ccf637773a7e27:/src/msw/treectrl.cpp diff --git a/src/msw/treectrl.cpp b/src/msw/treectrl.cpp index 187d568c38..0ac6f626c0 100644 --- a/src/msw/treectrl.cpp +++ b/src/msw/treectrl.cpp @@ -17,10 +17,6 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ - #pragma implementation "treectrl.h" -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -30,98 +26,158 @@ #if wxUSE_TREECTRL -#include "wx/msw/private.h" - -// Set this to 1 to be _absolutely_ sure that repainting will work for all -// comctl32.dll versions -#define wxUSE_COMCTL32_SAFELY 0 +#include "wx/treectrl.h" -// Mingw32 is a bit mental even though this is done in winundef -#ifdef GetFirstChild - #undef GetFirstChild +#ifndef WX_PRECOMP + #include "wx/msw/wrapcctl.h" // include "properly" + #include "wx/msw/missing.h" + #include "wx/dynarray.h" + #include "wx/log.h" + #include "wx/app.h" + #include "wx/settings.h" #endif -#ifdef GetNextSibling - #undef GetNextSibling -#endif - -#if defined(__WIN95__) +#include "wx/dynlib.h" +#include "wx/msw/private.h" -#include "wx/app.h" -#include "wx/log.h" -#include "wx/dynarray.h" #include "wx/imaglist.h" -#include "wx/settings.h" -#include "wx/msw/treectrl.h" #include "wx/msw/dragimag.h" +#include "wx/msw/uxtheme.h" -#ifdef __GNUWIN32_OLD__ - #include "wx/msw/gnuwin32/extra.h" -#endif +// macros to hide the cast ugliness +// -------------------------------- -#if defined(__WIN95__) && !((defined(__GNUWIN32_OLD__) || defined(__TWIN32__)) && !defined(__CYGWIN10__)) - #include -#endif +// get HTREEITEM from wxTreeItemId +#define HITEM(item) ((HTREEITEM)(((item).m_pItem))) -// Bug in headers, sometimes -#ifndef TVIS_FOCUSED - #define TVIS_FOCUSED 0x0001 -#endif -#ifndef TV_FIRST - #define TV_FIRST 0x1100 -#endif +// older SDKs are missing these +#ifndef TVN_ITEMCHANGINGA -#ifndef TVS_CHECKBOXES - #define TVS_CHECKBOXES 0x0100 -#endif +#define TVN_ITEMCHANGINGA (TVN_FIRST-16) +#define TVN_ITEMCHANGINGW (TVN_FIRST-17) -#ifndef TVS_FULLROWSELECT - #define TVS_FULLROWSELECT 0x1000 -#endif +typedef struct tagNMTVITEMCHANGE +{ + NMHDR hdr; + UINT uChanged; + HTREEITEM hItem; + UINT uStateNew; + UINT uStateOld; + LPARAM lParam; +} NMTVITEMCHANGE; -// old headers might miss these messages (comctl32.dll 4.71+ only) -#ifndef TVM_SETBKCOLOR - #define TVM_SETBKCOLOR (TV_FIRST + 29) - #define TVM_SETTEXTCOLOR (TV_FIRST + 30) #endif -// a macro to hide the ugliness of nested casts -#define HITEM(item) (HTREEITEM)(WXHTREEITEM)(item) -// the native control doesn't support multiple selections under MSW and we -// have 2 ways to emulate them: either using TVS_CHECKBOXES style and let -// checkboxes be the selection status (checked == selected) or by really -// emulating everything, i.e. intercepting mouse and key events &c. The first -// approach is much easier but doesn't work with comctl32.dll < 4.71 and also -// looks quite ugly. -#define wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE 0 +// this helper class is used on vista systems for preventing unwanted +// item state changes in the vista tree control. It is only effective in +// multi-select mode on vista systems. + +// The vista tree control includes some new code that originally broke the +// multi-selection tree, causing seemingly spurious item selection state changes +// during Shift or Ctrl-click item selection. (To witness the original broken +// behaviour, simply make IsLocked() below always return false). This problem was +// solved by using the following class to 'unlock' an item's selection state. + +class TreeItemUnlocker +{ +public: + // unlock a single item + TreeItemUnlocker(HTREEITEM item) + { + m_oldUnlockedItem = ms_unlockedItem; + ms_unlockedItem = item; + } + + // unlock all items, don't use unless absolutely necessary + TreeItemUnlocker() + { + m_oldUnlockedItem = ms_unlockedItem; + ms_unlockedItem = (HTREEITEM)-1; + } + + // lock everything back + ~TreeItemUnlocker() { ms_unlockedItem = m_oldUnlockedItem; } + + + // check if the item state is currently locked + static bool IsLocked(HTREEITEM item) + { return ms_unlockedItem != (HTREEITEM)-1 && item != ms_unlockedItem; } + +private: + static HTREEITEM ms_unlockedItem; + HTREEITEM m_oldUnlockedItem; + + wxDECLARE_NO_COPY_CLASS(TreeItemUnlocker); +}; + +HTREEITEM TreeItemUnlocker::ms_unlockedItem = NULL; + +// another helper class: set the variable to true during its lifetime and reset +// it to false when it is destroyed +// +// it is currently always used with wxTreeCtrl::m_changingSelection +class TempSetter +{ +public: + TempSetter(bool& var) : m_var(var) + { + wxASSERT_MSG( !m_var, "variable shouldn't be already set" ); + m_var = true; + } + + ~TempSetter() + { + m_var = false; + } + +private: + bool& m_var; + + wxDECLARE_NO_COPY_CLASS(TempSetter); +}; // ---------------------------------------------------------------------------- // private functions // ---------------------------------------------------------------------------- -// wrapper for TreeView_HitTest -static HTREEITEM GetItemFromPoint(HWND hwndTV, int x, int y) +namespace +{ + +// Work around a problem with TreeView_GetItemRect() when using MinGW/Cygwin: +// it results in warnings about breaking strict aliasing rules because HITEM is +// passed via a RECT pointer, so use a union to avoid them and define our own +// version of the standard macro using it. +union TVGetItemRectParam { - TV_HITTESTINFO tvht; - tvht.pt.x = x; - tvht.pt.y = y; + RECT rect; + HTREEITEM hItem; +}; - return (HTREEITEM)TreeView_HitTest(hwndTV, &tvht); +inline bool +wxTreeView_GetItemRect(HWND hwnd, + HTREEITEM hItem, + TVGetItemRectParam& param, + BOOL fItemRect) +{ + param.hItem = hItem; + return ::SendMessage(hwnd, TVM_GETITEMRECT, fItemRect, + (LPARAM)¶m) == TRUE; } -#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE +} // anonymous namespace // wrappers for TreeView_GetItem/TreeView_SetItem static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem) { - TV_ITEM tvi; tvi.mask = TVIF_STATE | TVIF_HANDLE; tvi.stateMask = TVIS_SELECTED; tvi.hItem = hItem; + TreeItemUnlocker unlocker(hItem); + if ( !TreeView_GetItem(hwndTV, &tvi) ) { wxLogLastError(wxT("TreeView_GetItem")); @@ -130,7 +186,7 @@ static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem) return (tvi.state & TVIS_SELECTED) != 0; } -static void SelectItem(HWND hwndTV, HTREEITEM hItem, bool select = TRUE) +static bool SelectItem(HWND hwndTV, HTREEITEM hItem, bool select = true) { TV_ITEM tvi; tvi.mask = TVIF_STATE | TVIF_HANDLE; @@ -138,15 +194,20 @@ static void SelectItem(HWND hwndTV, HTREEITEM hItem, bool select = TRUE) tvi.state = select ? TVIS_SELECTED : 0; tvi.hItem = hItem; + TreeItemUnlocker unlocker(hItem); + if ( TreeView_SetItem(hwndTV, &tvi) == -1 ) { wxLogLastError(wxT("TreeView_SetItem")); + return false; } + + return true; } static inline void UnselectItem(HWND hwndTV, HTREEITEM htItem) { - SelectItem(hwndTV, htItem, FALSE); + SelectItem(hwndTV, htItem, false); } static inline void ToggleItemSelection(HWND hwndTV, HTREEITEM htItem) @@ -155,31 +216,54 @@ static inline void ToggleItemSelection(HWND hwndTV, HTREEITEM htItem) } // helper function which selects all items in a range and, optionally, -// unselects all others -static void SelectRange(HWND hwndTV, +// deselects all the other ones +// +// returns true if the selection changed at all or false if nothing changed + +// flags for SelectRange() +enum +{ + SR_SIMULATE = 1, // don't do anything, just return true or false + SR_UNSELECT_OTHERS = 2 // deselect the items not in range +}; + +static bool SelectRange(HWND hwndTV, HTREEITEM htFirst, HTREEITEM htLast, - bool unselectOthers = TRUE) + int flags) { // find the first (or last) item and select it - bool cont = TRUE; + bool changed = false; + bool cont = true; HTREEITEM htItem = (HTREEITEM)TreeView_GetRoot(hwndTV); + while ( htItem && cont ) { if ( (htItem == htFirst) || (htItem == htLast) ) { if ( !IsItemSelected(hwndTV, htItem) ) { - SelectItem(hwndTV, htItem); + if ( !(flags & SR_SIMULATE) ) + { + SelectItem(hwndTV, htItem); + } + + changed = true; } - cont = FALSE; + cont = false; } - else + else // not first or last { - if ( unselectOthers && IsItemSelected(hwndTV, htItem) ) + if ( flags & SR_UNSELECT_OTHERS ) { - UnselectItem(hwndTV, htItem); + if ( IsItemSelected(hwndTV, htItem) ) + { + if ( !(flags & SR_SIMULATE) ) + UnselectItem(hwndTV, htItem); + + changed = true; + } } } @@ -192,7 +276,12 @@ static void SelectRange(HWND hwndTV, { if ( !IsItemSelected(hwndTV, htItem) ) { - SelectItem(hwndTV, htItem); + if ( !(flags & SR_SIMULATE) ) + { + SelectItem(hwndTV, htItem); + } + + changed = true; } cont = (htItem != htFirst) && (htItem != htLast); @@ -200,14 +289,19 @@ static void SelectRange(HWND hwndTV, htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem); } - // unselect the rest - if ( unselectOthers ) + // optionally deselect the rest + if ( flags & SR_UNSELECT_OTHERS ) { while ( htItem ) { if ( IsItemSelected(hwndTV, htItem) ) { - UnselectItem(hwndTV, htItem); + if ( !(flags & SR_SIMULATE) ) + { + UnselectItem(hwndTV, htItem); + } + + changed = true; } htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem); @@ -216,66 +310,68 @@ static void SelectRange(HWND hwndTV, // seems to be necessary - otherwise the just selected items don't always // appear as selected - UpdateWindow(hwndTV); + if ( !(flags & SR_SIMULATE) ) + { + UpdateWindow(hwndTV); + } + + return changed; } // helper function which tricks the standard control into changing the focused // item without changing anything else (if someone knows why Microsoft doesn't // allow to do it by just setting TVIS_FOCUSED flag, please tell me!) -static void SetFocus(HWND hwndTV, HTREEITEM htItem) +// +// returns true if the focus was changed, false if the given item was already +// the focused one +static bool SetFocus(HWND hwndTV, HTREEITEM htItem) { // the current focus HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(hwndTV); + if ( htItem == htFocus ) + return false; + if ( htItem ) { - // set the focus - if ( htItem != htFocus ) - { - // remember the selection state of the item - bool wasSelected = IsItemSelected(hwndTV, htItem); + // remember the selection state of the item + bool wasSelected = IsItemSelected(hwndTV, htItem); - if ( htFocus && IsItemSelected(hwndTV, htFocus) ) - { - // prevent the tree from unselecting the old focus which it - // would do by default (TreeView_SelectItem unselects the - // focused item) - TreeView_SelectItem(hwndTV, 0); - SelectItem(hwndTV, htFocus); - } + if ( htFocus && IsItemSelected(hwndTV, htFocus) ) + { + // prevent the tree from unselecting the old focus which it + // would do by default (TreeView_SelectItem unselects the + // focused item) + TreeView_SelectItem(hwndTV, 0); + SelectItem(hwndTV, htFocus); + } - TreeView_SelectItem(hwndTV, htItem); + TreeView_SelectItem(hwndTV, htItem); - if ( !wasSelected ) - { - // need to clear the selection which TreeView_SelectItem() gave - // us - UnselectItem(hwndTV, htItem); - } - //else: was selected, still selected - ok + if ( !wasSelected ) + { + // need to clear the selection which TreeView_SelectItem() gave + // us + UnselectItem(hwndTV, htItem); } - //else: nothing to do, focus already there + //else: was selected, still selected - ok } - else + else // reset focus { - if ( htFocus ) - { - bool wasFocusSelected = IsItemSelected(hwndTV, htFocus); + bool wasFocusSelected = IsItemSelected(hwndTV, htFocus); - // just clear the focus - TreeView_SelectItem(hwndTV, 0); + // just clear the focus + TreeView_SelectItem(hwndTV, 0); - if ( wasFocusSelected ) - { - // restore the selection state - SelectItem(hwndTV, htFocus); - } + if ( wasFocusSelected ) + { + // restore the selection state + SelectItem(hwndTV, htFocus); } - //else: nothing to do, no focus already } -} -#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE + return true; +} // ---------------------------------------------------------------------------- // private classes @@ -301,27 +397,128 @@ struct wxTreeViewItem : public TV_ITEM } }; +// ---------------------------------------------------------------------------- +// This class is our userdata/lParam for the TV_ITEMs stored in the treeview. +// +// We need this for a couple of reasons: +// +// 1) This class is needed for support of different images: the Win32 common +// control natively supports only 2 images (the normal one and another for the +// selected state). We wish to provide support for 2 more of them for folder +// items (i.e. those which have children): for expanded state and for expanded +// selected state. For this we use this structure to store the additional items +// images. +// +// 2) This class is also needed to hold the HITEM so that we can sort +// it correctly in the MSW sort callback. +// +// In addition it makes other workarounds such as this easier and helps +// simplify the code. +// ---------------------------------------------------------------------------- + +class wxTreeItemParam +{ +public: + wxTreeItemParam() + { + m_data = NULL; + + for ( size_t n = 0; n < WXSIZEOF(m_images); n++ ) + { + m_images[n] = -1; + } + } + + // dtor deletes the associated data as well + virtual ~wxTreeItemParam() { delete m_data; } + + // accessors + // get the real data associated with the item + wxTreeItemData *GetData() const { return m_data; } + // change it + void SetData(wxTreeItemData *data) { m_data = data; } + + // do we have such image? + bool HasImage(wxTreeItemIcon which) const { return m_images[which] != -1; } + // get image, falling back to the other images if this one is not + // specified + int GetImage(wxTreeItemIcon which) const + { + int image = m_images[which]; + if ( image == -1 ) + { + switch ( which ) + { + case wxTreeItemIcon_SelectedExpanded: + // We consider that expanded icon is more important than + // selected so test for it first. + image = m_images[wxTreeItemIcon_Expanded]; + if ( image == -1 ) + image = m_images[wxTreeItemIcon_Selected]; + if ( image != -1 ) + break; + //else: fall through + + case wxTreeItemIcon_Selected: + case wxTreeItemIcon_Expanded: + image = m_images[wxTreeItemIcon_Normal]; + break; + + case wxTreeItemIcon_Normal: + // no fallback + break; + + default: + wxFAIL_MSG( wxT("unsupported wxTreeItemIcon value") ); + } + } + + return image; + } + // change the given image + void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; } + + // get item + const wxTreeItemId& GetItem() const { return m_item; } + // set item + void SetItem(const wxTreeItemId& item) { m_item = item; } + +protected: + // all the images associated with the item + int m_images[wxTreeItemIcon_Max]; + + // item for sort callbacks + wxTreeItemId m_item; + + // the real client data + wxTreeItemData *m_data; + + wxDECLARE_NO_COPY_CLASS(wxTreeItemParam); +}; + // wxVirutalNode is used in place of a single root when 'hidden' root is // specified. class wxVirtualNode : public wxTreeViewItem { public: - wxVirtualNode(wxTreeItemData *data) + wxVirtualNode(wxTreeItemParam *param) : wxTreeViewItem(TVI_ROOT, 0) { - m_data = data; + m_param = param; } ~wxVirtualNode() { - delete m_data; + delete m_param; } - wxTreeItemData *GetData() const { return m_data; } - void SetData(wxTreeItemData *data) { delete m_data; m_data = data; } + wxTreeItemParam *GetParam() const { return m_param; } + void SetParam(wxTreeItemParam *param) { delete m_param; m_param = param; } private: - wxTreeItemData *m_data; + wxTreeItemParam *m_param; + + wxDECLARE_NO_COPY_CLASS(wxVirtualNode); }; #ifdef __VISUALC__ @@ -331,11 +528,11 @@ private: // a macro to get the virtual root, returns NULL if none #define GET_VIRTUAL_ROOT() ((wxVirtualNode *)m_pVirtualRoot) -// returns TRUE if the item is the virtual root +// returns true if the item is the virtual root #define IS_VIRTUAL_ROOT(item) (HITEM(item) == TVI_ROOT) // a class which encapsulates the tree traversal logic: it vists all (unless -// OnVisit() returns FALSE) items under the given one +// OnVisit() returns false) items under the given one class wxTreeTraversal { public: @@ -344,13 +541,18 @@ public: m_tree = tree; } + // give it a virtual dtor: not really needed as the class is never used + // polymorphically and not even allocated on heap at all, but this is safer + // (in case it ever is) and silences the compiler warnings for now + virtual ~wxTreeTraversal() { } + // do traverse the tree: visit all items (recursively by default) under the - // given one; return TRUE if all items were traversed or FALSE if the - // traversal was aborted because OnVisit returned FALSE - bool DoTraverse(const wxTreeItemId& root, bool recursively = TRUE); + // given one; return true if all items were traversed or false if the + // traversal was aborted because OnVisit returned false + bool DoTraverse(const wxTreeItemId& root, bool recursively = true); // override this function to do whatever is needed for each item, return - // FALSE to stop traversing + // false to stop traversing virtual bool OnVisit(const wxTreeItemId& item) = 0; protected: @@ -360,6 +562,8 @@ private: bool Traverse(const wxTreeItemId& root, bool recursively); const wxTreeCtrl *m_tree; + + wxDECLARE_NO_COPY_CLASS(wxTreeTraversal); }; // internal class for getting the selected items @@ -372,33 +576,34 @@ public: { m_selections.Empty(); - DoTraverse(tree->GetRootItem()); + if (tree->GetCount() > 0) + DoTraverse(tree->GetRootItem()); } virtual bool OnVisit(const wxTreeItemId& item) { + const wxTreeCtrl * const tree = GetTree(); + // can't visit a virtual node. - if ( (GetTree()->GetRootItem() == item) && (GetTree()->GetWindowStyle() & wxTR_HIDE_ROOT)) + if ( (tree->GetRootItem() == item) && tree->HasFlag(wxTR_HIDE_ROOT) ) { - return TRUE; + return true; } -#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE - if ( GetTree()->IsItemChecked(item) ) -#else - if ( ::IsItemSelected(GetHwndOf(GetTree()), HITEM(item)) ) -#endif + if ( ::IsItemSelected(GetHwndOf(tree), HITEM(item)) ) { m_selections.Add(item); } - return TRUE; + return true; } size_t GetCount() const { return m_selections.GetCount(); } private: wxArrayTreeItemIds& m_selections; + + wxDECLARE_NO_COPY_CLASS(TraverseSelections); }; // internal class for counting tree items @@ -419,82 +624,21 @@ public: { m_count++; - return TRUE; + return true; } size_t GetCount() const { return m_count; } private: size_t m_count; -}; - -// ---------------------------------------------------------------------------- -// This class is needed for support of different images: the Win32 common -// control natively supports only 2 images (the normal one and another for the -// selected state). We wish to provide support for 2 more of them for folder -// items (i.e. those which have children): for expanded state and for expanded -// selected state. For this we use this structure to store the additional items -// images. -// -// There is only one problem with this: when we retrieve the item's data, we -// don't know whether we get a pointer to wxTreeItemData or -// wxTreeItemIndirectData. So we always set the item id to an invalid value -// in this class and the code using the client data checks for it and retrieves -// the real client data in this case. -// ---------------------------------------------------------------------------- - -class wxTreeItemIndirectData : public wxTreeItemData -{ -public: - // ctor associates this data with the item and the real item data becomes - // available through our GetData() method - wxTreeItemIndirectData(wxTreeCtrl *tree, const wxTreeItemId& item) - { - for ( size_t n = 0; n < WXSIZEOF(m_images); n++ ) - { - m_images[n] = -1; - } - - // save the old data - m_data = tree->GetItemData(item); - - // and set ourselves as the new one - tree->SetIndirectItemData(item, this); - - // we must have the invalid value for the item - m_pItem = 0l; - } - - // dtor deletes the associated data as well - virtual ~wxTreeItemIndirectData() { delete m_data; } - - // accessors - // get the real data associated with the item - wxTreeItemData *GetData() const { return m_data; } - // change it - void SetData(wxTreeItemData *data) { m_data = data; } - - // do we have such image? - bool HasImage(wxTreeItemIcon which) const { return m_images[which] != -1; } - // get image - int GetImage(wxTreeItemIcon which) const { return m_images[which]; } - // change it - void SetImage(int image, wxTreeItemIcon which) { m_images[which] = image; } - -private: - // all the images associated with the item - int m_images[wxTreeItemIcon_Max]; - // the real client data - wxTreeItemData *m_data; + wxDECLARE_NO_COPY_CLASS(TraverseCounter); }; // ---------------------------------------------------------------------------- // wxWin macros // ---------------------------------------------------------------------------- -IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxControl) - // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- @@ -538,28 +682,28 @@ static /* const */ wxEventType gs_expandEvents[IDX_WHAT_MAX][IDX_HOW_MAX]; bool wxTreeTraversal::DoTraverse(const wxTreeItemId& root, bool recursively) { if ( !OnVisit(root) ) - return FALSE; + return false; return Traverse(root, recursively); } bool wxTreeTraversal::Traverse(const wxTreeItemId& root, bool recursively) { - long cookie; + wxTreeItemIdValue cookie; wxTreeItemId child = m_tree->GetFirstChild(root, cookie); while ( child.IsOk() ) { // depth first traversal - if ( recursively && !Traverse(child, TRUE) ) - return FALSE; + if ( recursively && !Traverse(child, true) ) + return false; if ( !OnVisit(child) ) - return FALSE; + return false; child = m_tree->GetNextChild(root, cookie); } - return TRUE; + return true; } // ---------------------------------------------------------------------------- @@ -568,14 +712,17 @@ bool wxTreeTraversal::Traverse(const wxTreeItemId& root, bool recursively) void wxTreeCtrl::Init() { - m_imageListNormal = NULL; - m_imageListState = NULL; - m_ownsImageListNormal = m_ownsImageListState = FALSE; m_textCtrl = NULL; - m_hasAnyAttr = FALSE; + m_hasAnyAttr = false; +#if wxUSE_DRAGIMAGE m_dragImage = NULL; - m_htSelStart = 0; +#endif m_pVirtualRoot = NULL; + m_dragStarted = false; + m_focusLost = true; + m_changingSelection = false; + m_triggerStateImageClick = false; + m_mouseUpDeselect = false; // initialize the global array of events now as it can't be done statically // with the wxEVT_XXX values being allocated during run-time only @@ -595,16 +742,17 @@ bool wxTreeCtrl::Create(wxWindow *parent, { Init(); - if ( !CreateControl(parent, id, pos, size, style, validator, name) ) - return FALSE; + if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT ) + style |= wxBORDER_SUNKEN; - DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP | - TVS_SHOWSELALWAYS; + if ( !CreateControl(parent, id, pos, size, style, validator, name) ) + return false; - if ( m_windowStyle & wxCLIP_SIBLINGS ) - wstyle |= WS_CLIPSIBLINGS; + WXDWORD exStyle = 0; + DWORD wstyle = MSWGetStyle(m_windowStyle, & exStyle); + wstyle |= WS_TABSTOP | TVS_SHOWSELALWAYS; - if ((m_windowStyle & wxTR_NO_LINES) == 0) + if ( !(m_windowStyle & wxTR_NO_LINES) ) wstyle |= TVS_HASLINES; if ( m_windowStyle & wxTR_HAS_BUTTONS ) wstyle |= TVS_HASBUTTONS; @@ -617,114 +765,52 @@ bool wxTreeCtrl::Create(wxWindow *parent, if ( m_windowStyle & wxTR_FULL_ROW_HIGHLIGHT ) { - if ( wxTheApp->GetComCtl32Version() >= 471 ) + if ( wxApp::GetComCtl32Version() >= 471 ) wstyle |= TVS_FULLROWSELECT; } - // using TVS_CHECKBOXES for emulation of a multiselection tree control - // doesn't work without the new enough headers -#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE && \ - !defined( __GNUWIN32_OLD__ ) && \ - !defined( __BORLANDC__ ) && \ - !defined( __WATCOMC__ ) && \ - (!defined(__VISUALC__) || (__VISUALC__ > 1010)) - - // we emulate the multiple selection tree controls by using checkboxes: set - // up the image list we need for this if we do have multiple selections - if ( m_windowStyle & wxTR_MULTIPLE ) - wstyle |= TVS_CHECKBOXES; -#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE +#if !defined(__WXWINCE__) && defined(TVS_INFOTIP) + // Need so that TVN_GETINFOTIP messages will be sent + wstyle |= TVS_INFOTIP; +#endif // Create the tree control. - if ( !MSWCreateControl(WC_TREEVIEW, wstyle) ) - return FALSE; + if ( !MSWCreateControl(WC_TREEVIEW, wstyle, pos, size) ) + return false; -#if wxUSE_COMCTL32_SAFELY - wxWindow::SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); - wxWindow::SetForegroundColour(wxWindow::GetParent()->GetForegroundColour()); -#elif 1 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); SetForegroundColour(wxWindow::GetParent()->GetForegroundColour()); -#else - // This works around a bug in the Windows tree control whereby for some versions - // of comctrl32, setting any colour actually draws the background in black. - // This will initialise the background to the system colour. - // THIS FIX NOW REVERTED since it caused problems on _other_ systems. - // Assume the user has an updated comctl32.dll. - ::SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0,-1); - wxWindow::SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW)); - SetForegroundColour(wxWindow::GetParent()->GetForegroundColour()); -#endif - - - // VZ: this is some experimental code which may be used to get the - // TVS_CHECKBOXES style functionality for comctl32.dll < 4.71. - // AFAIK, the standard DLL does about the same thing anyhow. -#if 0 - if ( m_windowStyle & wxTR_MULTIPLE ) - { - wxBitmap bmp; - - // create the DC compatible with the current screen - HDC hdcMem = CreateCompatibleDC(NULL); - - // create a mono bitmap of the standard size - int x = GetSystemMetrics(SM_CXMENUCHECK); - int y = GetSystemMetrics(SM_CYMENUCHECK); - wxImageList imagelistCheckboxes(x, y, FALSE, 2); - HBITMAP hbmpCheck = CreateBitmap(x, y, // bitmap size - 1, // # of color planes - 1, // # bits needed for one pixel - 0); // array containing colour data - SelectObject(hdcMem, hbmpCheck); - - // then draw a check mark into it - RECT rect = { 0, 0, x, y }; - if ( !::DrawFrameControl(hdcMem, &rect, - DFC_BUTTON, - DFCS_BUTTONCHECK | DFCS_CHECKED) ) - { - wxLogLastError(wxT("DrawFrameControl(check)")); - } - bmp.SetHBITMAP((WXHBITMAP)hbmpCheck); - imagelistCheckboxes.Add(bmp); + wxSetCCUnicodeFormat(GetHwnd()); - if ( !::DrawFrameControl(hdcMem, &rect, - DFC_BUTTON, - DFCS_BUTTONCHECK) ) + if ( m_windowStyle & wxTR_TWIST_BUTTONS ) + { + // Under Vista and later Explorer uses rotating ("twist") buttons + // instead of the default "+/-" ones so apply its theme to the tree + // control to implement this style. + if ( wxGetWinVersion() >= wxWinVersion_Vista ) { - wxLogLastError(wxT("DrawFrameControl(uncheck)")); + if ( wxUxThemeEngine *theme = wxUxThemeEngine::GetIfActive() ) + { + theme->SetWindowTheme(GetHwnd(), L"EXPLORER", NULL); + } } - - bmp.SetHBITMAP((WXHBITMAP)hbmpCheck); - imagelistCheckboxes.Add(bmp); - - // clean up - ::DeleteDC(hdcMem); - - // set the imagelist - SetStateImageList(&imagelistCheckboxes); } -#endif // 0 - - SetSize(pos.x, pos.y, size.x, size.y); - return TRUE; + return true; } wxTreeCtrl::~wxTreeCtrl() { + m_isBeingDeleted = true; + // delete any attributes if ( m_hasAnyAttr ) { - for ( wxNode *node = m_attrs.Next(); node; node = m_attrs.Next() ) - { - delete (wxTreeItemAttr *)node->Data(); - } + WX_CLEAR_HASH_MAP(wxMapTreeAttr, m_attrs); // prevent TVN_DELETEITEM handler from deleting the attributes again! - m_hasAnyAttr = FALSE; + m_hasAnyAttr = false; } DeleteTextCtrl(); @@ -732,43 +818,54 @@ wxTreeCtrl::~wxTreeCtrl() // delete user data to prevent memory leaks // also deletes hidden root node storage. DeleteAllItems(); - - if (m_ownsImageListNormal) delete m_imageListNormal; - if (m_ownsImageListState) delete m_imageListState; } // ---------------------------------------------------------------------------- // accessors // ---------------------------------------------------------------------------- +/* static */ wxVisualAttributes +wxTreeCtrl::GetClassDefaultAttributes(wxWindowVariant variant) +{ + wxVisualAttributes attrs = GetCompositeControlsDefaultAttributes(variant); + + // common controls have their own default font + attrs.font = wxGetCCDefaultFont(); + + return attrs; +} + + // simple wrappers which add error checking in debug mode -bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const +bool wxTreeCtrl::DoGetItem(wxTreeViewItem *tvItem) const { - wxCHECK_MSG( tvItem->hItem != TVI_ROOT, FALSE, - _T("can't retrieve virtual root item") ); + wxCHECK_MSG( tvItem->hItem != TVI_ROOT, false, + wxT("can't retrieve virtual root item") ); if ( !TreeView_GetItem(GetHwnd(), tvItem) ) { wxLogLastError(wxT("TreeView_GetItem")); - return FALSE; + return false; } - return TRUE; + return true; } -void wxTreeCtrl::DoSetItem(wxTreeViewItem* tvItem) +void wxTreeCtrl::DoSetItem(wxTreeViewItem *tvItem) { + TreeItemUnlocker unlocker(tvItem->hItem); + if ( TreeView_SetItem(GetHwnd(), tvItem) == -1 ) { wxLogLastError(wxT("TreeView_SetItem")); } } -size_t wxTreeCtrl::GetCount() const +unsigned int wxTreeCtrl::GetCount() const { - return (size_t)TreeView_GetCount(GetHwnd()); + return (unsigned int)TreeView_GetCount(GetHwnd()); } unsigned int wxTreeCtrl::GetIndent() const @@ -781,22 +878,12 @@ void wxTreeCtrl::SetIndent(unsigned int indent) TreeView_SetIndent(GetHwnd(), indent); } -wxImageList *wxTreeCtrl::GetImageList() const -{ - return m_imageListNormal; -} - -wxImageList *wxTreeCtrl::GetStateImageList() const -{ - return m_imageListNormal; -} - void wxTreeCtrl::SetAnyImageList(wxImageList *imageList, int which) { // no error return - TreeView_SetImageList(GetHwnd(), - imageList ? imageList->GetHIMAGELIST() : 0, - which); + (void) TreeView_SetImageList(GetHwnd(), + imageList ? imageList->GetHIMAGELIST() : 0, + which); } void wxTreeCtrl::SetImageList(wxImageList *imageList) @@ -805,33 +892,22 @@ void wxTreeCtrl::SetImageList(wxImageList *imageList) delete m_imageListNormal; SetAnyImageList(m_imageListNormal = imageList, TVSIL_NORMAL); - m_ownsImageListNormal = FALSE; + m_ownsImageListNormal = false; } void wxTreeCtrl::SetStateImageList(wxImageList *imageList) { if (m_ownsImageListState) delete m_imageListState; SetAnyImageList(m_imageListState = imageList, TVSIL_STATE); - m_ownsImageListState = FALSE; -} - -void wxTreeCtrl::AssignImageList(wxImageList *imageList) -{ - SetImageList(imageList); - m_ownsImageListNormal = TRUE; -} - -void wxTreeCtrl::AssignStateImageList(wxImageList *imageList) -{ - SetStateImageList(imageList); - m_ownsImageListState = TRUE; + m_ownsImageListState = false; } size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item, bool recursively) const { - TraverseCounter counter(this, item, recursively); + wxCHECK_MSG( item.IsOk(), 0u, wxT("invalid tree item") ); + TraverseCounter counter(this, item, recursively); return counter.GetCount() - 1; } @@ -841,34 +917,37 @@ size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item, bool wxTreeCtrl::SetBackgroundColour(const wxColour &colour) { -#if !wxUSE_COMCTL32_SAFELY if ( !wxWindowBase::SetBackgroundColour(colour) ) - return FALSE; + return false; - SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0, colour.GetPixel()); -#endif + ::SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0, colour.GetPixel()); - return TRUE; + return true; } bool wxTreeCtrl::SetForegroundColour(const wxColour &colour) { -#if !wxUSE_COMCTL32_SAFELY if ( !wxWindowBase::SetForegroundColour(colour) ) - return FALSE; + return false; - SendMessage(GetHwnd(), TVM_SETTEXTCOLOR, 0, colour.GetPixel()); -#endif + ::SendMessage(GetHwnd(), TVM_SETTEXTCOLOR, 0, colour.GetPixel()); - return TRUE; + return true; } // ---------------------------------------------------------------------------- // Item access // ---------------------------------------------------------------------------- +bool wxTreeCtrl::IsHiddenRoot(const wxTreeItemId& item) const +{ + return HITEM(item) == TVI_ROOT && HasFlag(wxTR_HIDE_ROOT); +} + wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const { + wxCHECK_MSG( item.IsOk(), wxEmptyString, wxT("invalid tree item") ); + wxChar buf[512]; // the size is arbitrary... wxTreeViewItem tvItem(item, TVIF_TEXT); @@ -885,11 +964,13 @@ wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text) { + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + if ( IS_VIRTUAL_ROOT(item) ) return; wxTreeViewItem tvItem(item, TVIF_TEXT); - tvItem.pszText = (wxChar *)text.c_str(); // conversion is ok + tvItem.pszText = wxMSW_CONV_LPTSTR(text); DoSetItem(&tvItem); // when setting the text of the item being edited, the text control should @@ -900,247 +981,110 @@ void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text) HWND hwndEdit = TreeView_GetEditControl(GetHwnd()); if ( hwndEdit ) { - if ( item == GetSelection() ) + if ( item == m_idEdited ) { - ::SetWindowText(hwndEdit, text); + ::SetWindowText(hwndEdit, text.t_str()); } } } -int wxTreeCtrl::DoGetItemImageFromData(const wxTreeItemId& item, - wxTreeItemIcon which) const -{ - wxTreeViewItem tvItem(item, TVIF_PARAM); - if ( !DoGetItem(&tvItem) ) - { - return -1; - } - - return ((wxTreeItemIndirectData *)tvItem.lParam)->GetImage(which); -} - -void wxTreeCtrl::DoSetItemImageFromData(const wxTreeItemId& item, - int image, - wxTreeItemIcon which) const -{ - wxTreeViewItem tvItem(item, TVIF_PARAM); - if ( !DoGetItem(&tvItem) ) - { - return; - } - - wxTreeItemIndirectData *data = ((wxTreeItemIndirectData *)tvItem.lParam); - - data->SetImage(image, which); - - // make sure that we have selected images as well - if ( which == wxTreeItemIcon_Normal && - !data->HasImage(wxTreeItemIcon_Selected) ) - { - data->SetImage(image, wxTreeItemIcon_Selected); - } - - if ( which == wxTreeItemIcon_Expanded && - !data->HasImage(wxTreeItemIcon_SelectedExpanded) ) - { - data->SetImage(image, wxTreeItemIcon_SelectedExpanded); - } -} - -void wxTreeCtrl::DoSetItemImages(const wxTreeItemId& item, - int image, - int imageSel) -{ - wxTreeViewItem tvItem(item, TVIF_IMAGE | TVIF_SELECTEDIMAGE); - tvItem.iSelectedImage = imageSel; - tvItem.iImage = image; - DoSetItem(&tvItem); -} - int wxTreeCtrl::GetItemImage(const wxTreeItemId& item, wxTreeItemIcon which) const { - if ( (HITEM(item) == TVI_ROOT) && (m_windowStyle & wxTR_HIDE_ROOT) ) - { - // TODO: Maybe a hidden root can still provide images? - return -1; - } - - if ( HasIndirectData(item) ) - { - return DoGetItemImageFromData(item, which); - } + wxCHECK_MSG( item.IsOk(), -1, wxT("invalid tree item") ); - UINT mask; - switch ( which ) + if ( IsHiddenRoot(item) ) { - default: - wxFAIL_MSG( wxT("unknown tree item image type") ); - - case wxTreeItemIcon_Normal: - mask = TVIF_IMAGE; - break; - - case wxTreeItemIcon_Selected: - mask = TVIF_SELECTEDIMAGE; - break; - - case wxTreeItemIcon_Expanded: - case wxTreeItemIcon_SelectedExpanded: - return -1; + // no images for hidden root item + return -1; } - wxTreeViewItem tvItem(item, mask); - DoGetItem(&tvItem); + wxTreeItemParam *param = GetItemParam(item); - return mask == TVIF_IMAGE ? tvItem.iImage : tvItem.iSelectedImage; + return param && param->HasImage(which) ? param->GetImage(which) : -1; } void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image, wxTreeItemIcon which) { - if ( IS_VIRTUAL_ROOT(item) ) + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + wxCHECK_RET( which >= 0 && + which < wxTreeItemIcon_Max, + wxT("invalid image index")); + + + if ( IsHiddenRoot(item) ) { - // TODO: Maybe a hidden root can still store images? + // no images for hidden root item return; } - int imageNormal, imageSel; - switch ( which ) - { - default: - wxFAIL_MSG( wxT("unknown tree item image type") ); - - case wxTreeItemIcon_Normal: - imageNormal = image; - imageSel = GetItemSelectedImage(item); - break; - - case wxTreeItemIcon_Selected: - imageNormal = GetItemImage(item); - imageSel = image; - break; - - case wxTreeItemIcon_Expanded: - case wxTreeItemIcon_SelectedExpanded: - if ( !HasIndirectData(item) ) - { - // we need to get the old images first, because after we create - // the wxTreeItemIndirectData GetItemXXXImage() will use it to - // get the images - imageNormal = GetItemImage(item); - imageSel = GetItemSelectedImage(item); - - // if it doesn't have it yet, add it - wxTreeItemIndirectData *data = new - wxTreeItemIndirectData(this, item); - - // copy the data to the new location - data->SetImage(imageNormal, wxTreeItemIcon_Normal); - data->SetImage(imageSel, wxTreeItemIcon_Selected); - } - - DoSetItemImageFromData(item, image, which); + wxTreeItemParam *data = GetItemParam(item); + if ( !data ) + return; - // reset the normal/selected images because we won't use them any - // more - now they're stored inside the indirect data - imageNormal = - imageSel = I_IMAGECALLBACK; - break; - } + data->SetImage(image, which); - // NB: at least in version 5.00.0518.9 of comctl32.dll we need to always - // change both normal and selected image - otherwise the change simply - // doesn't take place! - DoSetItemImages(item, imageNormal, imageSel); + RefreshItem(item); } -wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const +wxTreeItemParam *wxTreeCtrl::GetItemParam(const wxTreeItemId& item) const { + wxCHECK_MSG( item.IsOk(), NULL, wxT("invalid tree item") ); + wxTreeViewItem tvItem(item, TVIF_PARAM); - // Hidden root may have data. + // hidden root may still have data. if ( IS_VIRTUAL_ROOT(item) ) { - return GET_VIRTUAL_ROOT()->GetData(); + return GET_VIRTUAL_ROOT()->GetParam(); } - // Visible node. + // visible node. if ( !DoGetItem(&tvItem) ) { return NULL; } - wxTreeItemData *data = (wxTreeItemData *)tvItem.lParam; - if ( IsDataIndirect(data) ) - { - data = ((wxTreeItemIndirectData *)data)->GetData(); - } - - return data; + return (wxTreeItemParam *)tvItem.lParam; } -void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data) +bool wxTreeCtrl::HandleTreeEvent(wxTreeEvent& event) const { - if ( IS_VIRTUAL_ROOT(item) ) - { - GET_VIRTUAL_ROOT()->SetData(data); - } - - // first, associate this piece of data with this item - if ( data ) + if ( event.m_item.IsOk() ) { - data->SetId(item); + event.SetClientObject(GetItemData(event.m_item)); } - wxTreeViewItem tvItem(item, TVIF_PARAM); - - if ( HasIndirectData(item) ) - { - if ( DoGetItem(&tvItem) ) - { - ((wxTreeItemIndirectData *)tvItem.lParam)->SetData(data); - } - else - { - wxFAIL_MSG( wxT("failed to change tree items data") ); - } - } - else - { - tvItem.lParam = (LPARAM)data; - DoSetItem(&tvItem); - } + return HandleWindowEvent(event); } -void wxTreeCtrl::SetIndirectItemData(const wxTreeItemId& item, - wxTreeItemIndirectData *data) +wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const { - // this should never happen because it's unnecessary and will probably lead - // to crash too because the code elsewhere supposes that the pointer the - // wxTreeItemIndirectData has is a real wxItemData and not - // wxTreeItemIndirectData as well - wxASSERT_MSG( !HasIndirectData(item), wxT("setting indirect data twice?") ); + wxTreeItemParam *data = GetItemParam(item); - SetItemData(item, data); + return data ? data->GetData() : NULL; } -bool wxTreeCtrl::HasIndirectData(const wxTreeItemId& item) const +void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data) { - // query the item itself - wxTreeViewItem tvItem(item, TVIF_PARAM); - if ( !DoGetItem(&tvItem) ) + // first, associate this piece of data with this item + if ( data ) { - return FALSE; + data->SetId(item); } - wxTreeItemData *data = (wxTreeItemData *)tvItem.lParam; + wxTreeItemParam *param = GetItemParam(item); - return data && IsDataIndirect(data); + wxCHECK_RET( param, wxT("failed to change tree items data") ); + + param->SetData(data); } void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has) { + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + if ( IS_VIRTUAL_ROOT(item) ) return; @@ -1151,6 +1095,8 @@ void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has) void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold) { + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + if ( IS_VIRTUAL_ROOT(item) ) return; @@ -1181,17 +1127,47 @@ void wxTreeCtrl::RefreshItem(const wxTreeItemId& item) } } +wxColour wxTreeCtrl::GetItemTextColour(const wxTreeItemId& item) const +{ + wxCHECK_MSG( item.IsOk(), wxNullColour, wxT("invalid tree item") ); + + wxMapTreeAttr::const_iterator it = m_attrs.find(item.m_pItem); + return it == m_attrs.end() ? wxNullColour : it->second->GetTextColour(); +} + +wxColour wxTreeCtrl::GetItemBackgroundColour(const wxTreeItemId& item) const +{ + wxCHECK_MSG( item.IsOk(), wxNullColour, wxT("invalid tree item") ); + + wxMapTreeAttr::const_iterator it = m_attrs.find(item.m_pItem); + return it == m_attrs.end() ? wxNullColour : it->second->GetBackgroundColour(); +} + +wxFont wxTreeCtrl::GetItemFont(const wxTreeItemId& item) const +{ + wxCHECK_MSG( item.IsOk(), wxNullFont, wxT("invalid tree item") ); + + wxMapTreeAttr::const_iterator it = m_attrs.find(item.m_pItem); + return it == m_attrs.end() ? wxNullFont : it->second->GetFont(); +} + void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item, const wxColour& col) { - m_hasAnyAttr = TRUE; + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); - long id = (long)(WXHTREEITEM)item; - wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id); - if ( !attr ) + wxTreeItemAttr *attr; + wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem); + if ( it == m_attrs.end() ) { + m_hasAnyAttr = true; + + m_attrs[item.m_pItem] = attr = new wxTreeItemAttr; - m_attrs.Put(id, (wxObject *)attr); + } + else + { + attr = it->second; } attr->SetTextColour(col); @@ -1202,14 +1178,20 @@ void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item, void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item, const wxColour& col) { - m_hasAnyAttr = TRUE; + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); - long id = (long)(WXHTREEITEM)item; - wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id); - if ( !attr ) + wxTreeItemAttr *attr; + wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem); + if ( it == m_attrs.end() ) { + m_hasAnyAttr = true; + + m_attrs[item.m_pItem] = attr = new wxTreeItemAttr; - m_attrs.Put(id, (wxObject *)attr); + } + else // already in the hash + { + attr = it->second; } attr->SetBackgroundColour(col); @@ -1219,18 +1201,28 @@ void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item, void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font) { - m_hasAnyAttr = TRUE; + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); - long id = (long)(WXHTREEITEM)item; - wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id); - if ( !attr ) + wxTreeItemAttr *attr; + wxMapTreeAttr::iterator it = m_attrs.find(item.m_pItem); + if ( it == m_attrs.end() ) { + m_hasAnyAttr = true; + + m_attrs[item.m_pItem] = attr = new wxTreeItemAttr; - m_attrs.Put(id, (wxObject *)attr); + } + else // already in the hash + { + attr = it->second; } attr->SetFont(font); + // Reset the item's text to ensure that the bounding rect will be adjusted + // for the new font. + SetItemText(item, GetItemText(item)); + RefreshItem(item); } @@ -1240,19 +1232,41 @@ void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font) bool wxTreeCtrl::IsVisible(const wxTreeItemId& item) const { + wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") ); + + if ( item == wxTreeItemId(TVI_ROOT) ) + { + // virtual (hidden) root is never visible + return false; + } + // Bug in Gnu-Win32 headers, so don't use the macro TreeView_GetItemRect - RECT rect; + TVGetItemRectParam param; - // this ugliness comes directly from MSDN - it *is* the correct way to pass - // the HTREEITEM with TVM_GETITEMRECT - *(WXHTREEITEM *)&rect = (WXHTREEITEM)item; + // true means to get rect for just the text, not the whole line + if ( !wxTreeView_GetItemRect(GetHwnd(), HITEM(item), param, TRUE) ) + { + // if TVM_GETITEMRECT returned false, then the item is definitely not + // visible (because its parent is not expanded) + return false; + } - // FALSE means get item rect for the whole item, not only text - return SendMessage(GetHwnd(), TVM_GETITEMRECT, FALSE, (LPARAM)&rect) != 0; + // however if it returned true, the item might still be outside the + // currently visible part of the tree, test for it (notice that partly + // visible means visible here) + return param.rect.bottom > 0 && param.rect.top < GetClientSize().y; } bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const { + wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") ); + + if ( IS_VIRTUAL_ROOT(item) ) + { + wxTreeItemIdValue cookie; + return GetFirstChild(item, cookie).IsOk(); + } + wxTreeViewItem tvItem(item, TVIF_CHILDREN); DoGetItem(&tvItem); @@ -1261,8 +1275,7 @@ bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const { - // probably not a good idea to put it here - //wxASSERT( ItemHasChildren(item) ); + wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") ); wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_EXPANDED); DoGetItem(&tvItem); @@ -1272,6 +1285,8 @@ bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const { + wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") ); + wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_SELECTED); DoGetItem(&tvItem); @@ -1280,6 +1295,8 @@ bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const bool wxTreeCtrl::IsBold(const wxTreeItemId& item) const { + wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") ); + wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD); DoGetItem(&tvItem); @@ -1296,19 +1313,26 @@ wxTreeItemId wxTreeCtrl::GetRootItem() const if ( GET_VIRTUAL_ROOT() ) return TVI_ROOT; - return wxTreeItemId((WXHTREEITEM) TreeView_GetRoot(GetHwnd())); + return wxTreeItemId(TreeView_GetRoot(GetHwnd())); } wxTreeItemId wxTreeCtrl::GetSelection() const { - wxCHECK_MSG( !(m_windowStyle & wxTR_MULTIPLE), (long)(WXHTREEITEM)0, + wxCHECK_MSG( !HasFlag(wxTR_MULTIPLE), wxTreeItemId(), wxT("this only works with single selection controls") ); - return wxTreeItemId((WXHTREEITEM) TreeView_GetSelection(GetHwnd())); + return GetFocusedItem(); +} + +wxTreeItemId wxTreeCtrl::GetFocusedItem() const +{ + return wxTreeItemId(TreeView_GetSelection(GetHwnd())); } -wxTreeItemId wxTreeCtrl::GetParent(const wxTreeItemId& item) const +wxTreeItemId wxTreeCtrl::GetItemParent(const wxTreeItemId& item) const { + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); + HTREEITEM hItem; if ( IS_VIRTUAL_ROOT(item) ) @@ -1326,32 +1350,42 @@ wxTreeItemId wxTreeCtrl::GetParent(const wxTreeItemId& item) const } } - return wxTreeItemId((WXHTREEITEM)hItem); + return wxTreeItemId(hItem); } wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item, - long& _cookie) const + wxTreeItemIdValue& cookie) const { + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); + // remember the last child returned in 'cookie' - _cookie = (long)TreeView_GetChild(GetHwnd(), HITEM(item)); + cookie = TreeView_GetChild(GetHwnd(), HITEM(item)); - return wxTreeItemId((WXHTREEITEM)_cookie); + return wxTreeItemId(cookie); } wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item), - long& _cookie) const + wxTreeItemIdValue& cookie) const { - wxTreeItemId l = wxTreeItemId((WXHTREEITEM)TreeView_GetNextSibling(GetHwnd(), - HITEM(_cookie))); - _cookie = (long)l; + wxTreeItemId fromCookie(cookie); + + HTREEITEM hitem = HITEM(fromCookie); - return l; + hitem = TreeView_GetNextSibling(GetHwnd(), hitem); + + wxTreeItemId item(hitem); + + cookie = item.m_pItem; + + return item; } wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const { + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); + // can this be done more efficiently? - long cookie; + wxTreeItemIdValue cookie; wxTreeItemId childLast, child = GetFirstChild(item, cookie); @@ -1366,60 +1400,57 @@ wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const wxTreeItemId wxTreeCtrl::GetNextSibling(const wxTreeItemId& item) const { - return wxTreeItemId((WXHTREEITEM) TreeView_GetNextSibling(GetHwnd(), HITEM(item))); + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); + return wxTreeItemId(TreeView_GetNextSibling(GetHwnd(), HITEM(item))); } wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const { - return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevSibling(GetHwnd(), HITEM(item))); + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); + return wxTreeItemId(TreeView_GetPrevSibling(GetHwnd(), HITEM(item))); } wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const { - return wxTreeItemId((WXHTREEITEM) TreeView_GetFirstVisible(GetHwnd())); + return wxTreeItemId(TreeView_GetFirstVisible(GetHwnd())); } wxTreeItemId wxTreeCtrl::GetNextVisible(const wxTreeItemId& item) const { + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); wxASSERT_MSG( IsVisible(item), wxT("The item you call GetNextVisible() for must be visible itself!")); - return wxTreeItemId((WXHTREEITEM) TreeView_GetNextVisible(GetHwnd(), HITEM(item))); + wxTreeItemId next(TreeView_GetNextVisible(GetHwnd(), HITEM(item))); + if ( next.IsOk() && !IsVisible(next) ) + { + // Win32 considers that any non-collapsed item is visible while we want + // to return only really visible items + next.Unset(); + } + + return next; } wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const { + wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") ); wxASSERT_MSG( IsVisible(item), wxT("The item you call GetPrevVisible() for must be visible itself!")); - return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevVisible(GetHwnd(), HITEM(item))); + wxTreeItemId prev(TreeView_GetPrevVisible(GetHwnd(), HITEM(item))); + if ( prev.IsOk() && !IsVisible(prev) ) + { + // just as above, Win32 function will happily return the previous item + // in the tree for the first visible item too + prev.Unset(); + } + + return prev; } // ---------------------------------------------------------------------------- // multiple selections emulation // ---------------------------------------------------------------------------- -bool wxTreeCtrl::IsItemChecked(const wxTreeItemId& item) const -{ - // receive the desired information. - wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK); - DoGetItem(&tvItem); - - // state image indices are 1 based - return ((tvItem.state >> 12) - 1) == 1; -} - -void wxTreeCtrl::SetItemCheck(const wxTreeItemId& item, bool check) -{ - // receive the desired information. - wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK); - - DoGetItem(&tvItem); - - // state images are one-based - tvItem.state = (check ? 2 : 1) << 12; - - DoSetItem(&tvItem); -} - size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds& selections) const { TraverseSelections selector(this, selections); @@ -1431,15 +1462,15 @@ size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds& selections) const // Usual operations // ---------------------------------------------------------------------------- -wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent, - wxTreeItemId hInsertAfter, - const wxString& text, - int image, int selectedImage, - wxTreeItemData *data) +wxTreeItemId wxTreeCtrl::DoInsertAfter(const wxTreeItemId& parent, + const wxTreeItemId& hInsertAfter, + const wxString& text, + int image, int selectedImage, + wxTreeItemData *data) { wxCHECK_MSG( parent.IsOk() || !TreeView_GetRoot(GetHwnd()), wxTreeItemId(), - _T("can't have more than one root in the tree") ); + wxT("can't have more than one root in the tree") ); TV_INSERTSTRUCT tvIns; tvIns.hParent = HITEM(parent); @@ -1453,10 +1484,10 @@ wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent, } UINT mask = 0; - if ( !text.IsEmpty() ) + if ( !text.empty() ) { mask |= TVIF_TEXT; - tvIns.item.pszText = (wxChar *)text.c_str(); // cast is ok + tvIns.item.pszText = wxMSW_CONV_LPTSTR(text); } else { @@ -1464,143 +1495,189 @@ wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent, tvIns.item.cchTextMax = 0; } - if ( image != -1 ) - { - mask |= TVIF_IMAGE; - tvIns.item.iImage = image; - - if ( selectedImage == -1 ) - { - // take the same image for selected icon if not specified - selectedImage = image; - } - } + // create the param which will store the other item parameters + wxTreeItemParam *param = new wxTreeItemParam; - if ( selectedImage != -1 ) - { - mask |= TVIF_SELECTEDIMAGE; - tvIns.item.iSelectedImage = selectedImage; - } + // we return the images on demand as they depend on whether the item is + // expanded or collapsed too in our case + mask |= TVIF_IMAGE | TVIF_SELECTEDIMAGE; + tvIns.item.iImage = I_IMAGECALLBACK; + tvIns.item.iSelectedImage = I_IMAGECALLBACK; - if ( data != NULL ) - { - mask |= TVIF_PARAM; - tvIns.item.lParam = (LPARAM)data; - } + param->SetImage(image, wxTreeItemIcon_Normal); + param->SetImage(selectedImage, wxTreeItemIcon_Selected); + mask |= TVIF_PARAM; + tvIns.item.lParam = (LPARAM)param; tvIns.item.mask = mask; - HTREEITEM id = (HTREEITEM) TreeView_InsertItem(GetHwnd(), &tvIns); + // don't use the hack below for the children of hidden root: this results + // in a crash inside comctl32.dll when we call TreeView_GetItemRect() + const bool firstChild = !IsHiddenRoot(parent) && + !TreeView_GetChild(GetHwnd(), HITEM(parent)); + + HTREEITEM id = TreeView_InsertItem(GetHwnd(), &tvIns); if ( id == 0 ) { wxLogLastError(wxT("TreeView_InsertItem")); } - if ( data != NULL ) + // apparently some Windows versions (2000 and XP are reported to do this) + // sometimes don't refresh the tree after adding the first child and so we + // need this to make the "[+]" appear + if ( firstChild ) { - // associate the application tree item with Win32 tree item handle - data->SetId((WXHTREEITEM)id); + TVGetItemRectParam param; + + wxTreeView_GetItemRect(GetHwnd(), HITEM(parent), param, FALSE); + ::InvalidateRect(GetHwnd(), ¶m.rect, FALSE); } - return wxTreeItemId((WXHTREEITEM)id); -} + // associate the application tree item with Win32 tree item handle + param->SetItem(id); -// for compatibility only -wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent, - const wxString& text, - int image, int selImage, - long insertAfter) -{ - return DoInsertItem(parent, (WXHTREEITEM)insertAfter, text, - image, selImage, NULL); + // setup wxTreeItemData + if ( data != NULL ) + { + param->SetData(data); + data->SetId(id); + } + + return wxTreeItemId(id); } wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text, int image, int selectedImage, wxTreeItemData *data) { - - if ( m_windowStyle & wxTR_HIDE_ROOT ) + if ( HasFlag(wxTR_HIDE_ROOT) ) { + wxASSERT_MSG( !m_pVirtualRoot, wxT("tree can have only a single root") ); + // create a virtual root item, the parent for all the others - m_pVirtualRoot = new wxVirtualNode(data); + wxTreeItemParam *param = new wxTreeItemParam; + param->SetData(data); + + m_pVirtualRoot = new wxVirtualNode(param); return TVI_ROOT; } - return DoInsertItem(wxTreeItemId((long)(WXHTREEITEM) 0), (long)(WXHTREEITEM) 0, - text, image, selectedImage, data); + return DoInsertAfter(wxTreeItemId(), wxTreeItemId(), + text, image, selectedImage, data); } -wxTreeItemId wxTreeCtrl::PrependItem(const wxTreeItemId& parent, - const wxString& text, - int image, int selectedImage, - wxTreeItemData *data) +wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent, + size_t index, + const wxString& text, + int image, int selectedImage, + wxTreeItemData *data) { - return DoInsertItem(parent, (WXHTREEITEM) TVI_FIRST, - text, image, selectedImage, data); -} + wxTreeItemId idPrev; + if ( index == (size_t)-1 ) + { + // special value: append to the end + idPrev = TVI_LAST; + } + else // find the item from index + { + wxTreeItemIdValue cookie; + wxTreeItemId idCur = GetFirstChild(parent, cookie); + while ( index != 0 && idCur.IsOk() ) + { + index--; -wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent, - const wxTreeItemId& idPrevious, - const wxString& text, - int image, int selectedImage, - wxTreeItemData *data) -{ - return DoInsertItem(parent, idPrevious, text, image, selectedImage, data); + idPrev = idCur; + idCur = GetNextChild(parent, cookie); + } + + // assert, not check: if the index is invalid, we will append the item + // to the end + wxASSERT_MSG( index == 0, wxT("bad index in wxTreeCtrl::InsertItem") ); + } + + return DoInsertAfter(parent, idPrev, text, image, selectedImage, data); } -wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent, - size_t index, - const wxString& text, - int image, int selectedImage, - wxTreeItemData *data) +void wxTreeCtrl::Delete(const wxTreeItemId& item) { - // find the item from index - long cookie; - wxTreeItemId idPrev, idCur = GetFirstChild(parent, cookie); - while ( index != 0 && idCur.IsOk() ) + // unlock tree selections on vista, without this the + // tree ctrl will eventually crash after item deletion + TreeItemUnlocker unlock_all; + + if ( HasFlag(wxTR_MULTIPLE) ) { - index--; + bool selected = IsSelected(item); + wxTreeItemId next; - idPrev = idCur; - idCur = GetNextChild(parent, cookie); - } + if ( selected ) + { + next = TreeView_GetNextVisible(GetHwnd(), HITEM(item)); - // assert, not check: if the index is invalid, we will append the item - // to the end - wxASSERT_MSG( index == 0, _T("bad index in wxTreeCtrl::InsertItem") ); + if ( !next.IsOk() ) + { + next = TreeView_GetPrevVisible(GetHwnd(), HITEM(item)); + } + } - return DoInsertItem(parent, idPrev, text, image, selectedImage, data); -} + { + TempSetter set(m_changingSelection); + if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) ) + { + wxLogLastError(wxT("TreeView_DeleteItem")); + return; + } + } -wxTreeItemId wxTreeCtrl::AppendItem(const wxTreeItemId& parent, - const wxString& text, - int image, int selectedImage, - wxTreeItemData *data) -{ - return DoInsertItem(parent, (WXHTREEITEM) TVI_LAST, - text, image, selectedImage, data); -} + if ( !selected ) + { + return; + } -void wxTreeCtrl::Delete(const wxTreeItemId& item) -{ - if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) ) + if ( item == m_htSelStart ) + m_htSelStart.Unset(); + + if ( item == m_htClickedItem ) + m_htClickedItem.Unset(); + + if ( next.IsOk() ) + { + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, next); + + if ( IsTreeEventAllowed(changingEvent) ) + { + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this, next); + (void)HandleTreeEvent(changedEvent); + } + else + { + DoUnselectItem(next); + ClearFocusedItem(); + } + } + } + else { - wxLogLastError(wxT("TreeView_DeleteItem")); + if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) ) + { + wxLogLastError(wxT("TreeView_DeleteItem")); + } } } // delete all children (but don't delete the item itself) void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item) { - long cookie; + // unlock tree selections on vista for the duration of this call + TreeItemUnlocker unlock_all; + + wxTreeItemIdValue cookie; - wxArrayLong children; + wxArrayTreeItemIds children; wxTreeItemId child = GetFirstChild(item, cookie); while ( child.IsOk() ) { - children.Add((long)(WXHTREEITEM)child); + children.Add(child); child = GetNextChild(item, cookie); } @@ -1608,17 +1685,27 @@ void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item) size_t nCount = children.Count(); for ( size_t n = 0; n < nCount; n++ ) { - if ( !TreeView_DeleteItem(GetHwnd(), (HTREEITEM)children[n]) ) - { - wxLogLastError(wxT("TreeView_DeleteItem")); - } + Delete(children[n]); } } void wxTreeCtrl::DeleteAllItems() { - // delete stored root item. - delete GET_VIRTUAL_ROOT(); + // unlock tree selections on vista for the duration of this call + TreeItemUnlocker unlock_all; + + // invalidate all the items we store as they're going to become invalid + m_htSelStart = + m_htClickedItem = wxTreeItemId(); + + // delete the "virtual" root item. + if ( GET_VIRTUAL_ROOT() ) + { + delete GET_VIRTUAL_ROOT(); + m_pVirtualRoot = NULL; + } + + // and all the real items if ( !TreeView_DeleteAllItems(GetHwnd()) ) { @@ -1635,8 +1722,8 @@ void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag) wxT("Unknown flag in wxTreeCtrl::DoExpand") ); // A hidden root can be neither expanded nor collapsed. - wxCHECK_RET( !(m_windowStyle & wxTR_HIDE_ROOT) || (HITEM(item) != TVI_ROOT), - wxT("Can't expand/collapse hidden root node!") ) + wxCHECK_RET( !IsHiddenRoot(item), + wxT("Can't expand/collapse hidden root node!") ); // TreeView_Expand doesn't send TVN_ITEMEXPAND(ING) messages, so we must // emulate them. This behaviour has changed slightly with comctl32.dll @@ -1650,19 +1737,22 @@ void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag) tvItem.state = 0; DoSetItem(&tvItem); - if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) != 0 ) + if ( IsExpanded(item) ) { - wxTreeEvent event(wxEVT_NULL, m_windowId); - event.m_item = item; - event.SetEventObject(this); + wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_COLLAPSING, + this, wxTreeItemId(item)); + + if ( !IsTreeEventAllowed(event) ) + return; + } - // note that the {EXPAND|COLLAPS}ING event is sent by TreeView_Expand() - // itself - event.SetEventType(gs_expandEvents[IsExpanded(item) ? IDX_EXPAND - : IDX_COLLAPSE] - [IDX_DONE]); + if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) ) + { + if ( IsExpanded(item) ) + return; - (void)GetEventHandler()->ProcessEvent(event); + wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_COLLAPSED, this, item); + (void)HandleTreeEvent(event); } //else: change didn't took place, so do nothing at all } @@ -1687,74 +1777,186 @@ void wxTreeCtrl::Toggle(const wxTreeItemId& item) DoExpand(item, TVE_TOGGLE); } -void wxTreeCtrl::ExpandItem(const wxTreeItemId& item, int action) -{ - DoExpand(item, action); -} - void wxTreeCtrl::Unselect() { - wxASSERT_MSG( !(m_windowStyle & wxTR_MULTIPLE), + wxASSERT_MSG( !HasFlag(wxTR_MULTIPLE), wxT("doesn't make sense, may be you want UnselectAll()?") ); - // just remove the selection - SelectItem(wxTreeItemId((long) (WXHTREEITEM) 0)); -} + // the current focus + HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd()); + + if ( !htFocus ) + { + return; + } + + if ( HasFlag(wxTR_MULTIPLE) ) + { + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, wxTreeItemId()); + changingEvent.m_itemOld = htFocus; + + if ( IsTreeEventAllowed(changingEvent) ) + { + ClearFocusedItem(); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, wxTreeItemId()); + changedEvent.m_itemOld = htFocus; + (void)HandleTreeEvent(changedEvent); + } + } + else + { + ClearFocusedItem(); + } +} + +void wxTreeCtrl::DoUnselectAll() +{ + wxArrayTreeItemIds selections; + size_t count = GetSelections(selections); + + for ( size_t n = 0; n < count; n++ ) + { + DoUnselectItem(selections[n]); + } + + m_htSelStart.Unset(); +} void wxTreeCtrl::UnselectAll() { - if ( m_windowStyle & wxTR_MULTIPLE ) + if ( HasFlag(wxTR_MULTIPLE) ) { - wxArrayTreeItemIds selections; - size_t count = GetSelections(selections); - for ( size_t n = 0; n < count; n++ ) + HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd()); + if ( !htFocus ) return; + + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this); + changingEvent.m_itemOld = htFocus; + + if ( IsTreeEventAllowed(changingEvent) ) { -#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE - SetItemCheck(selections[n], FALSE); -#else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE - ::UnselectItem(GetHwnd(), HITEM(selections[n])); -#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE + DoUnselectAll(); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this); + changedEvent.m_itemOld = htFocus; + (void)HandleTreeEvent(changedEvent); } } else { - // just remove the selection Unselect(); } } -void wxTreeCtrl::SelectItem(const wxTreeItemId& item) +void wxTreeCtrl::DoSelectChildren(const wxTreeItemId& parent) { - if ( m_windowStyle & wxTR_MULTIPLE ) + DoUnselectAll(); + + wxTreeItemIdValue cookie; + wxTreeItemId child = GetFirstChild(parent, cookie); + while ( child.IsOk() ) { -#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE - // selecting the item means checking it - SetItemCheck(item); -#else // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE - ::SelectItem(GetHwnd(), HITEM(item)); -#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE + DoSelectItem(child, true); + child = GetNextChild(child, cookie); } - else +} + +void wxTreeCtrl::SelectChildren(const wxTreeItemId& parent) +{ + wxCHECK_RET( HasFlag(wxTR_MULTIPLE), + "this only works with multiple selection controls" ); + + HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd()); + + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this); + changingEvent.m_itemOld = htFocus; + + if ( IsTreeEventAllowed(changingEvent) ) + { + DoSelectChildren(parent); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this); + changedEvent.m_itemOld = htFocus; + (void)HandleTreeEvent(changedEvent); + } +} + +void wxTreeCtrl::DoSelectItem(const wxTreeItemId& item, bool select) +{ + TempSetter set(m_changingSelection); + + ::SelectItem(GetHwnd(), HITEM(item), select); +} + +void wxTreeCtrl::SelectItem(const wxTreeItemId& item, bool select) +{ + wxCHECK_RET( !IsHiddenRoot(item), wxT("can't select hidden root item") ); + + if ( select == IsSelected(item) ) + { + // nothing to do, the item is already in the requested state + return; + } + + if ( HasFlag(wxTR_MULTIPLE) ) + { + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item); + + if ( IsTreeEventAllowed(changingEvent) ) + { + HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd()); + DoSelectItem(item, select); + + if ( !htFocus ) + { + SetFocusedItem(item); + } + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, item); + (void)HandleTreeEvent(changedEvent); + } + } + else // single selection { - // inspite of the docs (MSDN Jan 99 edition), we don't seem to receive - // the notification from the control (i.e. TVN_SELCHANG{ED|ING}), so - // send them ourselves + wxTreeItemId itemOld, itemNew; + if ( select ) + { + itemOld = GetSelection(); + itemNew = item; + } + else // deselecting the currently selected item + { + itemOld = item; + // leave itemNew invalid + } - wxTreeEvent event(wxEVT_NULL, m_windowId); - event.m_item = item; - event.SetEventObject(this); + // Recent versions of comctl32.dll send TVN_SELCHANG{ED,ING} events + // when we call TreeView_SelectItem() but apparently some old ones did + // not so send the events ourselves and ignore those generated by + // TreeView_SelectItem() if m_changingSelection is set. + wxTreeEvent + changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, itemNew); + changingEvent.SetOldItem(itemOld); - event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGING); - if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() ) + if ( IsTreeEventAllowed(changingEvent) ) { - if ( !TreeView_SelectItem(GetHwnd(), HITEM(item)) ) + TempSetter set(m_changingSelection); + + if ( !TreeView_SelectItem(GetHwnd(), HITEM(itemNew)) ) { wxLogLastError(wxT("TreeView_SelectItem")); } - else + else // ok { - event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED); - (void)GetEventHandler()->ProcessEvent(event); + ::SetFocus(GetHwnd(), HITEM(item)); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, itemNew); + changedEvent.SetOldItem(itemOld); + (void)HandleTreeEvent(changedEvent); } } //else: program vetoed the change @@ -1763,6 +1965,8 @@ void wxTreeCtrl::SelectItem(const wxTreeItemId& item) void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item) { + wxCHECK_RET( !IsHiddenRoot(item), wxT("can't show hidden root item") ); + // no error return TreeView_EnsureVisible(GetHwnd(), HITEM(item)); } @@ -1794,27 +1998,28 @@ void wxTreeCtrl::DeleteTextCtrl() m_textCtrl->UnsubclassWin(); m_textCtrl->SetHWND(0); - delete m_textCtrl; - m_textCtrl = NULL; + wxDELETE(m_textCtrl); + + m_idEdited.Unset(); } } -wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item, - wxClassInfo* textControlClass) +wxTextCtrl *wxTreeCtrl::EditLabel(const wxTreeItemId& item, + wxClassInfo *textControlClass) { - wxASSERT( textControlClass->IsKindOf(CLASSINFO(wxTextCtrl)) ); + wxASSERT( textControlClass->IsKindOf(wxCLASSINFO(wxTextCtrl)) ); DeleteTextCtrl(); + m_idEdited = item; m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject(); HWND hWnd = (HWND) TreeView_EditLabel(GetHwnd(), HITEM(item)); // this is not an error - the TVN_BEGINLABELEDIT handler might have - // returned FALSE + // returned false if ( !hWnd ) { - delete m_textCtrl; - m_textCtrl = NULL; + wxDELETE(m_textCtrl); return NULL; } @@ -1823,20 +2028,20 @@ wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item, } // End label editing, optionally cancelling the edit -void wxTreeCtrl::EndEditLabel(const wxTreeItemId& WXUNUSED(item), bool discardChanges) +void wxTreeCtrl::DoEndEditLabel(bool discardChanges) { TreeView_EndEditLabelNow(GetHwnd(), discardChanges); DeleteTextCtrl(); } -wxTreeItemId wxTreeCtrl::HitTest(const wxPoint& point, int& flags) +wxTreeItemId wxTreeCtrl::DoTreeHitTest(const wxPoint& point, int& flags) const { TV_HITTESTINFO hitTestInfo; hitTestInfo.pt.x = (int)point.x; hitTestInfo.pt.y = (int)point.y; - TreeView_HitTest(GetHwnd(), &hitTestInfo); + (void) TreeView_HitTest(GetHwnd(), &hitTestInfo); flags = 0; @@ -1858,28 +2063,68 @@ wxTreeItemId wxTreeCtrl::HitTest(const wxPoint& point, int& flags) #undef TRANSLATE_FLAG - return wxTreeItemId((WXHTREEITEM) hitTestInfo.hItem); + return wxTreeItemId(hitTestInfo.hItem); } bool wxTreeCtrl::GetBoundingRect(const wxTreeItemId& item, wxRect& rect, bool textOnly) const { - RECT rc; - if ( TreeView_GetItemRect(GetHwnd(), HITEM(item), - &rc, textOnly) ) + // Virtual root items have no bounding rectangle + if ( IS_VIRTUAL_ROOT(item) ) { - rect = wxRect(wxPoint(rc.left, rc.top), wxPoint(rc.right, rc.bottom)); + return false; + } + + TVGetItemRectParam param; - return TRUE; + if ( wxTreeView_GetItemRect(GetHwnd(), HITEM(item), param, textOnly) ) + { + rect = wxRect(wxPoint(param.rect.left, param.rect.top), + wxPoint(param.rect.right, param.rect.bottom)); + + return true; } else { // couldn't retrieve rect: for example, item isn't visible - return FALSE; + return false; } } +void wxTreeCtrl::ClearFocusedItem() +{ + TempSetter set(m_changingSelection); + + if ( !TreeView_SelectItem(GetHwnd(), 0) ) + { + wxLogLastError(wxT("TreeView_SelectItem")); + } +} + +void wxTreeCtrl::SetFocusedItem(const wxTreeItemId& item) +{ + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + + TempSetter set(m_changingSelection); + + ::SetFocus(GetHwnd(), HITEM(item)); +} + +void wxTreeCtrl::DoUnselectItem(const wxTreeItemId& item) +{ + TempSetter set(m_changingSelection); + + ::UnselectItem(GetHwnd(), HITEM(item)); +} + +void wxTreeCtrl::DoToggleItemSelection(const wxTreeItemId& item) +{ + TempSetter set(m_changingSelection); + + ::ToggleItemSelection(GetHwnd(), HITEM(item)); +} + // ---------------------------------------------------------------------------- // sorting stuff // ---------------------------------------------------------------------------- @@ -1892,16 +2137,10 @@ public: static int CALLBACK Compare(LPARAM data1, LPARAM data2, LPARAM tree); private: - static wxTreeItemId GetIdFromData(wxTreeCtrl *tree, LPARAM item) + static wxTreeItemId GetIdFromData(LPARAM lParam) { - wxTreeItemData *data = (wxTreeItemData *)item; - if ( tree->IsDataIndirect(data) ) - { - data = ((wxTreeItemIndirectData *)data)->GetData(); + return ((wxTreeItemParam*)lParam)->GetItem(); } - - return data->GetId(); - } }; int CALLBACK wxTreeSortHelper::Compare(LPARAM pItem1, @@ -1913,22 +2152,22 @@ int CALLBACK wxTreeSortHelper::Compare(LPARAM pItem1, wxTreeCtrl *tree = (wxTreeCtrl *)htree; - return tree->OnCompareItems(GetIdFromData(tree, pItem1), - GetIdFromData(tree, pItem2)); -} - -int wxTreeCtrl::OnCompareItems(const wxTreeItemId& item1, - const wxTreeItemId& item2) -{ - return wxStrcmp(GetItemText(item1), GetItemText(item2)); + return tree->OnCompareItems(GetIdFromData(pItem1), + GetIdFromData(pItem2)); } void wxTreeCtrl::SortChildren(const wxTreeItemId& item) { + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + // rely on the fact that TreeView_SortChildren does the same thing as our // default behaviour, i.e. sorts items alphabetically and so call it // directly if we're not in derived class (much more efficient!) - if ( GetClassInfo() == CLASSINFO(wxTreeCtrl) ) + // RN: Note that if you find you're code doesn't sort as expected this + // may be why as if you don't use the DECLARE_CLASS/IMPLEMENT_CLASS + // combo for your derived wxTreeCtrl if will sort without + // OnCompareItems + if ( GetClassInfo() == wxCLASSINFO(wxTreeCtrl) ) { TreeView_SortChildren(GetHwnd(), HITEM(item), 0); } @@ -1946,8 +2185,26 @@ void wxTreeCtrl::SortChildren(const wxTreeItemId& item) // implementation // ---------------------------------------------------------------------------- -bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id) +bool wxTreeCtrl::MSWShouldPreProcessMessage(WXMSG* msg) +{ + if ( msg->message == WM_KEYDOWN ) + { + // Only eat VK_RETURN if not being used by the application in + // conjunction with modifiers + if ( (msg->wParam == VK_RETURN) && !wxIsAnyModifierDown() ) + { + // we need VK_RETURN to generate wxEVT_COMMAND_TREE_ITEM_ACTIVATED + return false; + } + } + + return wxTreeCtrlBase::MSWShouldPreProcessMessage(msg); +} + +bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id_) { + const int id = (signed short)id_; + if ( cmd == EN_UPDATE ) { wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id); @@ -1963,103 +2220,805 @@ bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id) else { // nothing done - return FALSE; + return false; } // command processed - return TRUE; + return true; } -// we hook into WndProc to process WM_MOUSEMOVE/WM_BUTTONUP messages - as we -// only do it during dragging, minimize wxWin overhead (this is important for -// WM_MOUSEMOVE as they're a lot of them) by catching Windows messages directly -// instead of passing by wxWin events -long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) -{ - bool processed = FALSE; - long rc = 0; - bool isMultiple = (GetWindowStyle() & wxTR_MULTIPLE) != 0; +bool wxTreeCtrl::MSWIsOnItem(unsigned flags) const +{ + unsigned mask = TVHT_ONITEM; + if ( HasFlag(wxTR_FULL_ROW_HIGHLIGHT) ) + mask |= TVHT_ONITEMINDENT | TVHT_ONITEMRIGHT; + + return (flags & mask) != 0; +} + +bool wxTreeCtrl::MSWHandleSelectionKey(unsigned vkey) +{ + const bool bCtrl = wxIsCtrlDown(); + const bool bShift = wxIsShiftDown(); + const HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd()); + + switch ( vkey ) + { + case VK_RETURN: + case VK_SPACE: + if ( !htSel ) + break; + + if ( vkey != VK_RETURN && bCtrl ) + { + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, htSel); + changingEvent.m_itemOld = htSel; + + if ( IsTreeEventAllowed(changingEvent) ) + { + DoToggleItemSelection(wxTreeItemId(htSel)); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, htSel); + changedEvent.m_itemOld = htSel; + (void)HandleTreeEvent(changedEvent); + } + } + else + { + wxArrayTreeItemIds selections; + size_t count = GetSelections(selections); + + if ( count != 1 || HITEM(selections[0]) != htSel ) + { + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, htSel); + changingEvent.m_itemOld = htSel; + + if ( IsTreeEventAllowed(changingEvent) ) + { + DoUnselectAll(); + DoSelectItem(wxTreeItemId(htSel)); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, htSel); + changedEvent.m_itemOld = htSel; + (void)HandleTreeEvent(changedEvent); + } + } + } + break; + + case VK_UP: + case VK_DOWN: + if ( !bCtrl && !bShift ) + { + wxArrayTreeItemIds selections; + wxTreeItemId next; + + if ( htSel ) + { + next = vkey == VK_UP + ? TreeView_GetPrevVisible(GetHwnd(), htSel) + : TreeView_GetNextVisible(GetHwnd(), htSel); + } + else + { + next = GetRootItem(); + + if ( IsHiddenRoot(next) ) + next = TreeView_GetChild(GetHwnd(), HITEM(next)); + } + + if ( !next.IsOk() ) + { + break; + } + + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, next); + changingEvent.m_itemOld = htSel; + + if ( IsTreeEventAllowed(changingEvent) ) + { + DoUnselectAll(); + DoSelectItem(next); + SetFocusedItem(next); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, next); + changedEvent.m_itemOld = htSel; + (void)HandleTreeEvent(changedEvent); + } + } + else if ( htSel ) + { + wxTreeItemId next = vkey == VK_UP + ? TreeView_GetPrevVisible(GetHwnd(), htSel) + : TreeView_GetNextVisible(GetHwnd(), htSel); + + if ( !next.IsOk() ) + { + break; + } + + if ( !m_htSelStart ) + { + m_htSelStart = htSel; + } + + if ( bShift && SelectRange(GetHwnd(), HITEM(m_htSelStart), HITEM(next), + SR_UNSELECT_OTHERS | SR_SIMULATE) ) + { + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, next); + changingEvent.m_itemOld = htSel; + + if ( IsTreeEventAllowed(changingEvent) ) + { + SelectRange(GetHwnd(), HITEM(m_htSelStart), HITEM(next), + SR_UNSELECT_OTHERS); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this, next); + changedEvent.m_itemOld = htSel; + (void)HandleTreeEvent(changedEvent); + } + } + + SetFocusedItem(next); + } + break; + + case VK_LEFT: + if ( HasChildren(htSel) && IsExpanded(htSel) ) + { + Collapse(htSel); + } + else + { + wxTreeItemId next = GetItemParent(htSel); + + if ( next.IsOk() && !IsHiddenRoot(next) ) + { + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, next); + changingEvent.m_itemOld = htSel; + + if ( IsTreeEventAllowed(changingEvent) ) + { + DoUnselectAll(); + DoSelectItem(next); + SetFocusedItem(next); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, next); + changedEvent.m_itemOld = htSel; + (void)HandleTreeEvent(changedEvent); + } + } + } + break; + + case VK_RIGHT: + if ( !IsVisible(htSel) ) + { + EnsureVisible(htSel); + } + + if ( !HasChildren(htSel) ) + break; + + if ( !IsExpanded(htSel) ) + { + Expand(htSel); + } + else + { + wxTreeItemId next = TreeView_GetChild(GetHwnd(), htSel); + + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, this, next); + changingEvent.m_itemOld = htSel; + + if ( IsTreeEventAllowed(changingEvent) ) + { + DoUnselectAll(); + DoSelectItem(next); + SetFocusedItem(next); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, this, next); + changedEvent.m_itemOld = htSel; + (void)HandleTreeEvent(changedEvent); + } + } + break; + + case VK_HOME: + case VK_END: + { + wxTreeItemId next = GetRootItem(); + + if ( IsHiddenRoot(next) ) + { + next = TreeView_GetChild(GetHwnd(), HITEM(next)); + } + + if ( !next.IsOk() ) + break; + + if ( vkey == VK_END ) + { + for ( ;; ) + { + wxTreeItemId nextTemp = TreeView_GetNextVisible( + GetHwnd(), HITEM(next)); + + if ( !nextTemp.IsOk() ) + break; + + next = nextTemp; + } + } + + if ( htSel == HITEM(next) ) + break; + + if ( bShift ) + { + if ( !m_htSelStart ) + { + m_htSelStart = htSel; + } + + if ( SelectRange(GetHwnd(), + HITEM(m_htSelStart), HITEM(next), + SR_UNSELECT_OTHERS | SR_SIMULATE) ) + { + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, next); + changingEvent.m_itemOld = htSel; + + if ( IsTreeEventAllowed(changingEvent) ) + { + SelectRange(GetHwnd(), + HITEM(m_htSelStart), HITEM(next), + SR_UNSELECT_OTHERS); + SetFocusedItem(next); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, next); + changedEvent.m_itemOld = htSel; + (void)HandleTreeEvent(changedEvent); + } + } + } + else // no Shift + { + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, next); + changingEvent.m_itemOld = htSel; + + if ( IsTreeEventAllowed(changingEvent) ) + { + DoUnselectAll(); + DoSelectItem(next); + SetFocusedItem(next); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, next); + changedEvent.m_itemOld = htSel; + (void)HandleTreeEvent(changedEvent); + } + } + } + break; + + case VK_PRIOR: + case VK_NEXT: + if ( bCtrl ) + { + wxTreeItemId firstVisible = GetFirstVisibleItem(); + size_t visibleCount = TreeView_GetVisibleCount(GetHwnd()); + wxTreeItemId nextAdjacent = (vkey == VK_PRIOR) ? + TreeView_GetPrevVisible(GetHwnd(), HITEM(firstVisible)) : + TreeView_GetNextVisible(GetHwnd(), HITEM(firstVisible)); + + if ( !nextAdjacent ) + { + break; + } + + wxTreeItemId nextStart = firstVisible; + + for ( size_t n = 1; n < visibleCount; n++ ) + { + wxTreeItemId nextTemp = (vkey == VK_PRIOR) ? + TreeView_GetPrevVisible(GetHwnd(), HITEM(nextStart)) : + TreeView_GetNextVisible(GetHwnd(), HITEM(nextStart)); + + if ( nextTemp.IsOk() ) + { + nextStart = nextTemp; + } + else + { + break; + } + } + + EnsureVisible(nextStart); + + if ( vkey == VK_NEXT ) + { + wxTreeItemId nextEnd = nextStart; + + for ( size_t n = 1; n < visibleCount; n++ ) + { + wxTreeItemId nextTemp = + TreeView_GetNextVisible(GetHwnd(), HITEM(nextEnd)); + + if ( nextTemp.IsOk() ) + { + nextEnd = nextTemp; + } + else + { + break; + } + } + + EnsureVisible(nextEnd); + } + } + else // no Ctrl + { + size_t visibleCount = TreeView_GetVisibleCount(GetHwnd()); + wxTreeItemId nextAdjacent = (vkey == VK_PRIOR) ? + TreeView_GetPrevVisible(GetHwnd(), htSel) : + TreeView_GetNextVisible(GetHwnd(), htSel); + + if ( !nextAdjacent ) + { + break; + } + + wxTreeItemId next(htSel); + + for ( size_t n = 1; n < visibleCount; n++ ) + { + wxTreeItemId nextTemp = vkey == VK_PRIOR ? + TreeView_GetPrevVisible(GetHwnd(), HITEM(next)) : + TreeView_GetNextVisible(GetHwnd(), HITEM(next)); + + if ( !nextTemp.IsOk() ) + break; + + next = nextTemp; + } + + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, next); + changingEvent.m_itemOld = htSel; + + if ( IsTreeEventAllowed(changingEvent) ) + { + DoUnselectAll(); + m_htSelStart.Unset(); + DoSelectItem(next); + SetFocusedItem(next); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, next); + changedEvent.m_itemOld = htSel; + (void)HandleTreeEvent(changedEvent); + } + } + break; + + default: + return false; + } + + return true; +} + +bool wxTreeCtrl::MSWHandleTreeKeyDownEvent(WXWPARAM wParam, WXLPARAM lParam) +{ + wxTreeEvent keyEvent(wxEVT_COMMAND_TREE_KEY_DOWN, this); + keyEvent.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN, wParam, lParam); + + bool processed = HandleTreeEvent(keyEvent); + + // generate a separate event for Space/Return + if ( !wxIsCtrlDown() && !wxIsShiftDown() && !wxIsAltDown() && + ((wParam == VK_SPACE) || (wParam == VK_RETURN)) ) + { + const HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd()); + if ( htSel ) + { + wxTreeEvent activatedEvent(wxEVT_COMMAND_TREE_ITEM_ACTIVATED, + this, htSel); + (void)HandleTreeEvent(activatedEvent); + } + } + + return processed; +} + +// we hook into WndProc to process WM_MOUSEMOVE/WM_BUTTONUP messages - as we +// only do it during dragging, minimize wxWin overhead (this is important for +// WM_MOUSEMOVE as they're a lot of them) by catching Windows messages directly +// instead of passing by wxWin events +WXLRESULT +wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) +{ + bool processed = false; + WXLRESULT rc = 0; + bool isMultiple = HasFlag(wxTR_MULTIPLE); + + if ( nMsg == WM_CONTEXTMENU ) + { + int x = GET_X_LPARAM(lParam), + y = GET_Y_LPARAM(lParam); + + // the item for which the menu should be shown + wxTreeItemId item; + + // the position where the menu should be shown in client coordinates + // (so that it can be passed directly to PopupMenu()) + wxPoint pt; + + if ( x == -1 || y == -1 ) + { + // this means that the event was generated from keyboard (e.g. with + // Shift-F10 or special Windows menu key) + // + // use the Explorer standard of putting the menu at the left edge + // of the text, in the vertical middle of the text + item = wxTreeItemId(TreeView_GetSelection(GetHwnd())); + if ( item.IsOk() ) + { + // Use the bounding rectangle of only the text part + wxRect rect; + GetBoundingRect(item, rect, true); + pt = wxPoint(rect.GetX(), rect.GetY() + rect.GetHeight() / 2); + } + } + else // event from mouse, use mouse position + { + pt = ScreenToClient(wxPoint(x, y)); + + TV_HITTESTINFO tvhti; + tvhti.pt.x = pt.x; + tvhti.pt.y = pt.y; + + if ( TreeView_HitTest(GetHwnd(), &tvhti) ) + item = wxTreeItemId(tvhti.hItem); + } + + // create the event + if ( item.IsOk() ) + { + wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_MENU, this, item); + + event.m_pointDrag = pt; + + if ( HandleTreeEvent(event) ) + processed = true; + //else: continue with generating wxEVT_CONTEXT_MENU in base class code + } + } + else if ( (nMsg >= WM_MOUSEFIRST) && (nMsg <= WM_MOUSELAST) ) + { + // we only process mouse messages here and these parameters have the + // same meaning for all of them + int x = GET_X_LPARAM(lParam), + y = GET_Y_LPARAM(lParam); + + TV_HITTESTINFO tvht; + tvht.pt.x = x; + tvht.pt.y = y; + + HTREEITEM htOldItem = TreeView_GetSelection(GetHwnd()); + HTREEITEM htItem = TreeView_HitTest(GetHwnd(), &tvht); + + switch ( nMsg ) + { + case WM_LBUTTONDOWN: + if ( !isMultiple ) + break; + + m_htClickedItem.Unset(); + + if ( !MSWIsOnItem(tvht.flags) ) + { + if ( tvht.flags & TVHT_ONITEMBUTTON ) + { + // either it's going to be handled by user code or + // we're going to use it ourselves to toggle the + // branch, in either case don't pass it to the base + // class which would generate another mouse click event + // for it even though it's already handled here + processed = true; + SetFocus(); + + if ( !HandleMouseEvent(nMsg, x, y, wParam) ) + { + if ( !IsExpanded(htItem) ) + { + Expand(htItem); + } + else + { + Collapse(htItem); + } + } + } + + m_focusLost = false; + break; + } + + processed = true; + SetFocus(); + m_htClickedItem = (WXHTREEITEM) htItem; + m_ptClick = wxPoint(x, y); + + if ( wParam & MK_CONTROL ) + { + if ( HandleMouseEvent(nMsg, x, y, wParam) ) + { + m_htClickedItem.Unset(); + break; + } + + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, htItem); + changingEvent.m_itemOld = htOldItem; + + if ( IsTreeEventAllowed(changingEvent) ) + { + // toggle selected state + DoToggleItemSelection(wxTreeItemId(htItem)); + + SetFocusedItem(wxTreeItemId(htItem)); + + // reset on any click without Shift + m_htSelStart.Unset(); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, htItem); + changedEvent.m_itemOld = htOldItem; + (void)HandleTreeEvent(changedEvent); + } + } + else if ( wParam & MK_SHIFT ) + { + if ( HandleMouseEvent(nMsg, x, y, wParam) ) + { + m_htClickedItem.Unset(); + break; + } + + int srFlags = 0; + bool willChange = true; + + if ( !(wParam & MK_CONTROL) ) + { + srFlags |= SR_UNSELECT_OTHERS; + } + + if ( !m_htSelStart ) + { + // take the focused item + m_htSelStart = htOldItem; + } + else + { + willChange = SelectRange(GetHwnd(), HITEM(m_htSelStart), + htItem, srFlags | SR_SIMULATE); + } + + if ( willChange ) + { + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, htItem); + changingEvent.m_itemOld = htOldItem; + + if ( IsTreeEventAllowed(changingEvent) ) + { + // this selects all items between the starting one + // and the current + if ( m_htSelStart ) + { + SelectRange(GetHwnd(), HITEM(m_htSelStart), + htItem, srFlags); + } + else + { + DoSelectItem(wxTreeItemId(htItem)); + } + + SetFocusedItem(wxTreeItemId(htItem)); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, htItem); + changedEvent.m_itemOld = htOldItem; + (void)HandleTreeEvent(changedEvent); + } + } + } + else // normal click + { + // avoid doing anything if we click on the only + // currently selected item + + wxArrayTreeItemIds selections; + size_t count = GetSelections(selections); + + if ( count == 0 || + count > 1 || + HITEM(selections[0]) != htItem ) + { + if ( HandleMouseEvent(nMsg, x, y, wParam) ) + { + m_htClickedItem.Unset(); + break; + } + + // clear the previously selected items, if the user + // clicked outside of the present selection, otherwise, + // perform the deselection on mouse-up, this allows + // multiple drag and drop to work. + if ( !IsItemSelected(GetHwnd(), htItem)) + { + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, htItem); + changingEvent.m_itemOld = htOldItem; + + if ( IsTreeEventAllowed(changingEvent) ) + { + DoUnselectAll(); + DoSelectItem(wxTreeItemId(htItem)); + SetFocusedItem(wxTreeItemId(htItem)); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, htItem); + changedEvent.m_itemOld = htOldItem; + (void)HandleTreeEvent(changedEvent); + } + } + else + { + SetFocusedItem(wxTreeItemId(htItem)); + m_mouseUpDeselect = true; + } + } + else // click on a single selected item + { + // don't interfere with the default processing in + // WM_MOUSEMOVE handler below as the default window + // proc will start the drag itself if we let have + // WM_LBUTTONDOWN + m_htClickedItem.Unset(); + + // prevent in-place editing from starting if focus lost + // since previous click + if ( m_focusLost ) + { + ClearFocusedItem(); + DoSelectItem(wxTreeItemId(htItem)); + SetFocusedItem(wxTreeItemId(htItem)); + } + else + { + processed = false; + } + } + + // reset on any click without Shift + m_htSelStart.Unset(); + } + + m_focusLost = false; - if ( (nMsg >= WM_MOUSEFIRST) && (nMsg <= WM_MOUSELAST) ) - { - // we only process mouse messages here and these parameters have the same - // meaning for all of them - int x = GET_X_LPARAM(lParam), - y = GET_Y_LPARAM(lParam); - HTREEITEM htItem = GetItemFromPoint(GetHwnd(), x, y); + // we consumed the event so we need to trigger state image + // click if needed + if ( processed ) + { + if ( tvht.flags & TVHT_ONITEMSTATEICON ) + { + m_triggerStateImageClick = true; + } + } + break; - switch ( nMsg ) - { case WM_RBUTTONDOWN: - // if the item we are about to right click on - // is not already select, remove the entire - // previous selection - if (!::IsItemSelected(GetHwnd(), htItem)) + if ( !isMultiple ) + break; + + processed = true; + SetFocus(); + + if ( HandleMouseEvent(nMsg, x, y, wParam) || !htItem ) + { + break; + } + + // default handler removes the highlight from the currently + // focused item when right mouse button is pressed on another + // one but keeps the remaining items highlighted, which is + // confusing, so override this default behaviour + if ( !IsItemSelected(GetHwnd(), htItem) ) { - UnselectAll(); + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, htItem); + changingEvent.m_itemOld = htOldItem; + + if ( IsTreeEventAllowed(changingEvent) ) + { + DoUnselectAll(); + DoSelectItem(wxTreeItemId(htItem)); + SetFocusedItem(wxTreeItemId(htItem)); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, htItem); + changedEvent.m_itemOld = htOldItem; + (void)HandleTreeEvent(changedEvent); + } } - // select item and set the focus to the - // newly selected item - ::SelectItem(GetHwnd(), htItem); - ::SetFocus(GetHwnd(), htItem); break; -#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE - case WM_LBUTTONDOWN: - if ( htItem && isMultiple ) + case WM_MOUSEMOVE: +#ifndef __WXWINCE__ + if ( m_htClickedItem ) { - if ( wParam & MK_CONTROL ) + int cx = abs(m_ptClick.x - x); + int cy = abs(m_ptClick.y - y); + + if ( cx > ::GetSystemMetrics(SM_CXDRAG) || + cy > ::GetSystemMetrics(SM_CYDRAG) ) { - SetFocus(); + NM_TREEVIEW tv; + wxZeroMemory(tv); - // toggle selected state - ToggleItemSelection(GetHwnd(), htItem); + tv.hdr.hwndFrom = GetHwnd(); + tv.hdr.idFrom = ::GetWindowLong(GetHwnd(), GWL_ID); + tv.hdr.code = TVN_BEGINDRAG; - ::SetFocus(GetHwnd(), htItem); + tv.itemNew.hItem = HITEM(m_htClickedItem); - // reset on any click without Shift - m_htSelStart = 0; - processed = TRUE; - } - else if ( wParam & MK_SHIFT ) - { - // this selects all items between the starting one and - // the current + TVITEM tviAux; + wxZeroMemory(tviAux); - if ( !m_htSelStart ) - { - // take the focused item - m_htSelStart = (WXHTREEITEM) - TreeView_GetSelection(GetHwnd()); - } + tviAux.hItem = HITEM(m_htClickedItem); + tviAux.mask = TVIF_STATE | TVIF_PARAM; + tviAux.stateMask = 0xffffffff; + TreeView_GetItem(GetHwnd(), &tviAux); - SelectRange(GetHwnd(), HITEM(m_htSelStart), htItem, - !(wParam & MK_CONTROL)); + tv.itemNew.state = tviAux.state; + tv.itemNew.lParam = tviAux.lParam; - ::SetFocus(GetHwnd(), htItem); + tv.ptDrag.x = x; + tv.ptDrag.y = y; - processed = TRUE; - } - else // normal click - { - // clear the selection and then let the default handler - // do the job - UnselectAll(); + // do it before SendMessage() call below to avoid + // reentrancies here if there is another WM_MOUSEMOVE + // in the queue already + m_htClickedItem.Unset(); - // prevent the click from starting in-place editing - // when there was no selection in the control - TreeView_SelectItem(GetHwnd(), 0); + ::SendMessage(GetHwndOf(GetParent()), WM_NOTIFY, + tv.hdr.idFrom, (LPARAM)&tv ); - // reset on any click without Shift - m_htSelStart = 0; + // don't pass it to the default window proc, it would + // start dragging again + processed = true; } } - break; -#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE +#endif // __WXWINCE__ - case WM_MOUSEMOVE: +#if wxUSE_DRAGIMAGE if ( m_dragImage ) { m_dragImage->Move(wxPoint(x, y)); @@ -2072,128 +3031,222 @@ long wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) m_dragImage->Show(); } } +#endif // wxUSE_DRAGIMAGE break; case WM_LBUTTONUP: + if ( isMultiple ) + { + // deselect other items if needed + if ( htItem ) + { + if ( m_mouseUpDeselect ) + { + m_mouseUpDeselect = false; + + wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING, + this, htItem); + changingEvent.m_itemOld = htOldItem; + + if ( IsTreeEventAllowed(changingEvent) ) + { + DoUnselectAll(); + DoSelectItem(wxTreeItemId(htItem)); + SetFocusedItem(wxTreeItemId(htItem)); + + wxTreeEvent changedEvent(wxEVT_COMMAND_TREE_SEL_CHANGED, + this, htItem); + changedEvent.m_itemOld = htOldItem; + (void)HandleTreeEvent(changedEvent); + } + } + } + + m_htClickedItem.Unset(); + + if ( m_triggerStateImageClick ) + { + if ( tvht.flags & TVHT_ONITEMSTATEICON ) + { + wxTreeEvent event(wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK, + this, htItem); + (void)HandleTreeEvent(event); + + m_triggerStateImageClick = false; + processed = true; + } + } + + if ( !m_dragStarted && MSWIsOnItem(tvht.flags) ) + { + processed = true; + } + } + + // fall through + case WM_RBUTTONUP: +#if wxUSE_DRAGIMAGE if ( m_dragImage ) { m_dragImage->EndDrag(); - delete m_dragImage; - m_dragImage = NULL; + wxDELETE(m_dragImage); // generate the drag end event - wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, m_windowId); - - event.m_item = (WXHTREEITEM)htItem; + wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, + this, htItem); event.m_pointDrag = wxPoint(x, y); - event.SetEventObject(this); - - (void)GetEventHandler()->ProcessEvent(event); + (void)HandleTreeEvent(event); // if we don't do it, the tree seems to think that 2 items // are selected simultaneously which is quite weird TreeView_SelectDropTarget(GetHwnd(), 0); } +#endif // wxUSE_DRAGIMAGE + + if ( isMultiple && nMsg == WM_RBUTTONUP ) + { + // send NM_RCLICK + NMHDR nmhdr; + nmhdr.hwndFrom = GetHwnd(); + nmhdr.idFrom = ::GetWindowLong(GetHwnd(), GWL_ID); + nmhdr.code = NM_RCLICK; + ::SendMessage(::GetParent(GetHwnd()), WM_NOTIFY, + nmhdr.idFrom, (LPARAM)&nmhdr); + processed = true; + } + + m_dragStarted = false; + break; } } -#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE - else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) && isMultiple ) + else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) ) { - // the tree control greys out the selected item when it loses focus and - // paints it as selected again when it regains it, but it won't do it - // for the other items itself - help it - wxArrayTreeItemIds selections; - size_t count = GetSelections(selections); - RECT rect; - for ( size_t n = 0; n < count; n++ ) + if ( isMultiple ) { - // TreeView_GetItemRect() will return FALSE if item is not visible, - // which may happen perfectly well - if ( TreeView_GetItemRect(GetHwnd(), HITEM(selections[n]), - &rect, TRUE) ) + // the tree control greys out the selected item when it loses focus + // and paints it as selected again when it regains it, but it won't + // do it for the other items itself - help it + wxArrayTreeItemIds selections; + size_t count = GetSelections(selections); + TVGetItemRectParam param; + + for ( size_t n = 0; n < count; n++ ) { - ::InvalidateRect(GetHwnd(), &rect, FALSE); + // TreeView_GetItemRect() will return false if item is not + // visible, which may happen perfectly well + if ( wxTreeView_GetItemRect(GetHwnd(), HITEM(selections[n]), + param, TRUE) ) + { + ::InvalidateRect(GetHwnd(), ¶m.rect, FALSE); + } } } + + if ( nMsg == WM_KILLFOCUS ) + { + m_focusLost = true; + } } - else if ( nMsg == WM_KEYDOWN && isMultiple ) + else if ( (nMsg == WM_KEYDOWN || nMsg == WM_SYSKEYDOWN) && isMultiple ) { - bool bCtrl = wxIsCtrlDown(), - bShift = wxIsShiftDown(); + // normally we want to generate wxEVT_KEY_DOWN events from TVN_KEYDOWN + // notification but for the keys which can be used to change selection + // we need to do it from here so as to not apply the default behaviour + // if the events are handled by the user code + switch ( wParam ) + { + case VK_RETURN: + case VK_SPACE: + case VK_UP: + case VK_DOWN: + case VK_LEFT: + case VK_RIGHT: + case VK_HOME: + case VK_END: + case VK_PRIOR: + case VK_NEXT: + if ( !HandleKeyDown(wParam, lParam) && + !MSWHandleTreeKeyDownEvent(wParam, lParam) ) + { + // use the key to update the selection if it was left + // unprocessed + MSWHandleSelectionKey(wParam); + } - // we handle.arrows and space, but not page up/down and home/end: the - // latter should be easy, but not the former + // pretend that we did process it in any case as we already + // generated an event for it + processed = true; - HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd()); - if ( !m_htSelStart ) - { - m_htSelStart = (WXHTREEITEM)htSel; + //default: for all the other keys leave processed as false so that + // the tree control generates a TVN_KEYDOWN for us } - if ( wParam == VK_SPACE ) + } + else if ( nMsg == WM_COMMAND ) + { + // if we receive a EN_KILLFOCUS command from the in-place edit control + // used for label editing, make sure to end editing + WORD id, cmd; + WXHWND hwnd; + UnpackCommand(wParam, lParam, &id, &hwnd, &cmd); + + if ( cmd == EN_KILLFOCUS ) { - if ( bCtrl ) - { - ToggleItemSelection(GetHwnd(), htSel); - } - else + if ( m_textCtrl && m_textCtrl->GetHandle() == hwnd ) { - UnselectAll(); + DoEndEditLabel(); - ::SelectItem(GetHwnd(), htSel); + processed = true; } - - processed = TRUE; } - else if ( wParam == VK_UP || wParam == VK_DOWN ) - { - if ( !bCtrl && !bShift ) - { - // no modifiers, just clear selection and then let the default - // processing to take place - UnselectAll(); - } - else if ( htSel ) - { - (void)wxControl::MSWWindowProc(nMsg, wParam, lParam); + } - HTREEITEM htNext = (HTREEITEM)(wParam == VK_UP - ? TreeView_GetPrevVisible(GetHwnd(), htSel) - : TreeView_GetNextVisible(GetHwnd(), htSel)); + if ( !processed ) + rc = wxControl::MSWWindowProc(nMsg, wParam, lParam); - if ( !htNext ) - { - // at the top/bottom - htNext = htSel; - } + return rc; +} - if ( bShift ) - { - SelectRange(GetHwnd(), HITEM(m_htSelStart), htNext); - } - else // bCtrl - { - // without changing selection - ::SetFocus(GetHwnd(), htNext); - } +WXLRESULT +wxTreeCtrl::MSWDefWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) +{ + if ( nMsg == WM_CHAR ) + { + // don't let the control process Space and Return keys because it + // doesn't do anything useful with them anyhow but always beeps + // annoyingly when it receives them and there is no way to turn it off + // simply if you just process TREEITEM_ACTIVATED event to which Space + // and Enter presses are mapped in your code + if ( wParam == VK_SPACE || wParam == VK_RETURN ) + return 0; + } +#if wxUSE_DRAGIMAGE + else if ( nMsg == WM_KEYDOWN ) + { + if ( wParam == VK_ESCAPE ) + { + if ( m_dragImage ) + { + m_dragImage->EndDrag(); + wxDELETE(m_dragImage); - processed = TRUE; + // if we don't do it, the tree seems to think that 2 items + // are selected simultaneously which is quite weird + TreeView_SelectDropTarget(GetHwnd(), 0); } } } -#endif // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE - if ( !processed ) - rc = wxControl::MSWWindowProc(nMsg, wParam, lParam); +#endif // wxUSE_DRAGIMAGE - return rc; + return wxControl::MSWDefWindowProc(nMsg, wParam, lParam); } // process WM_NOTIFY Windows message bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) { - wxTreeEvent event(wxEVT_NULL, m_windowId); + wxTreeEvent event(wxEVT_NULL, this); wxEventType eventType = wxEVT_NULL; NMHDR *hdr = (NMHDR *)lParam; @@ -2211,7 +3264,7 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam; - event.m_item = (WXHTREEITEM) tv->itemNew.hItem; + event.m_item = tv->itemNew.hItem; event.m_pointDrag = wxPoint(tv->ptDrag.x, tv->ptDrag.y); // don't allow dragging by default: the user code must @@ -2226,8 +3279,13 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) eventType = wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT; TV_DISPINFO *info = (TV_DISPINFO *)lParam; - event.m_item = (WXHTREEITEM) info->item.hItem; + // although the user event handler may still veto it, it is + // important to set it now so that calls to SetItemText() from + // the event handler would change the text controls contents + m_idEdited = + event.m_item = info->item.hItem; event.m_label = info->item.pszText; + event.m_editCancelled = false; } break; @@ -2236,12 +3294,16 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) eventType = wxEVT_COMMAND_TREE_DELETE_ITEM; NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam; - event.m_item = (WXHTREEITEM)tv->itemOld.hItem; + event.m_item = tv->itemOld.hItem; if ( m_hasAnyAttr ) { - delete (wxTreeItemAttr *)m_attrs. - Delete((long)tv->itemOld.hItem); + wxMapTreeAttr::iterator it = m_attrs.find(tv->itemOld.hItem); + if ( it != m_attrs.end() ) + { + delete it->second; + m_attrs.erase(it); + } } } break; @@ -2251,12 +3313,37 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) eventType = wxEVT_COMMAND_TREE_END_LABEL_EDIT; TV_DISPINFO *info = (TV_DISPINFO *)lParam; - event.m_item = (WXHTREEITEM)info->item.hItem; + event.m_item = info->item.hItem; event.m_label = info->item.pszText; - if (info->item.pszText == NULL) - return FALSE; + event.m_editCancelled = info->item.pszText == NULL; + break; + } + +#ifndef __WXWINCE__ + // These *must* not be removed or TVN_GETINFOTIP will + // not be processed each time the mouse is moved + // and the tooltip will only ever update once. + case TTN_NEEDTEXTA: + case TTN_NEEDTEXTW: + { + *result = 0; + + break; + } + +#ifdef TVN_GETINFOTIP + case TVN_GETINFOTIP: + { + eventType = wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP; + NMTVGETINFOTIP *info = (NMTVGETINFOTIP*)lParam; + + // Which item are we trying to get a tooltip for? + event.m_item = info->hItem; + break; } +#endif // TVN_GETINFOTIP +#endif // !__WXWINCE__ case TVN_GETDISPINFO: eventType = wxEVT_COMMAND_TREE_GET_INFO; @@ -2270,14 +3357,14 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) TV_DISPINFO *info = (TV_DISPINFO *)lParam; - event.m_item = (WXHTREEITEM) info->item.hItem; + event.m_item = info->item.hItem; break; } case TVN_ITEMEXPANDING: case TVN_ITEMEXPANDED: { - NM_TREEVIEW* tv = (NM_TREEVIEW*)lParam; + NM_TREEVIEW *tv = (NM_TREEVIEW*)lParam; int what; switch ( tv->action ) @@ -2295,77 +3382,109 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) break; } - int how = (int)hdr->code == TVN_ITEMEXPANDING ? IDX_DOING - : IDX_DONE; + int how = hdr->code == TVN_ITEMEXPANDING ? IDX_DOING + : IDX_DONE; eventType = gs_expandEvents[what][how]; - event.m_item = (WXHTREEITEM) tv->itemNew.hItem; + event.m_item = tv->itemNew.hItem; } break; case TVN_KEYDOWN: { - eventType = wxEVT_COMMAND_TREE_KEY_DOWN; TV_KEYDOWN *info = (TV_KEYDOWN *)lParam; // fabricate the lParam and wParam parameters sufficiently // similar to the ones from a "real" WM_KEYDOWN so that // CreateKeyEvent() works correctly - WXLPARAM lParam = - (::GetKeyState(VK_MENU) & 0x100 ? KF_ALTDOWN : 0) << 16; + return MSWHandleTreeKeyDownEvent( + info->wVKey, (wxIsAltDown() ? KF_ALTDOWN : 0) << 16); + } - WXWPARAM wParam = info->wVKey; - int keyCode = wxCharCodeMSWToWX(info->wVKey); - if ( !keyCode ) - { - // wxCharCodeMSWToWX() returns 0 to indicate that this is a - // simple ASCII key - keyCode = wParam; - } + // Vista's tree control has introduced some problems with our + // multi-selection tree. When TreeView_SelectItem() is called, + // the wrong items are deselected. - event.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN, - keyCode, - lParam, - wParam); + // Fortunately, Vista provides a new notification, TVN_ITEMCHANGING + // that can be used to regulate this incorrect behaviour. The + // following messages will allow only the unlocked item's selection + // state to change - // a separate event for Space/Return - if ( !wxIsCtrlDown() && !wxIsShiftDown() && - ((info->wVKey == VK_SPACE) || (info->wVKey == VK_RETURN)) ) + case TVN_ITEMCHANGINGA: + case TVN_ITEMCHANGINGW: + { + // we only need to handles these in multi-select trees + if ( HasFlag(wxTR_MULTIPLE) ) { - wxTreeEvent event2(wxEVT_COMMAND_TREE_ITEM_ACTIVATED, - m_windowId); - event2.SetEventObject(this); - if ( !(GetWindowStyle() & wxTR_MULTIPLE) ) + // get info about the item about to be changed + NMTVITEMCHANGE* info = (NMTVITEMCHANGE*)lParam; + if (TreeItemUnlocker::IsLocked(info->hItem)) { - event2.m_item = GetSelection(); + // item's state is locked, don't allow the change + // returning 1 will disallow the change + *result = 1; + return true; } - //else: don't know how to get it - - (void)GetEventHandler()->ProcessEvent(event2); } - } - break; - case TVN_SELCHANGED: - eventType = wxEVT_COMMAND_TREE_SEL_CHANGED; + // allow the state change + } + return false; + + // NB: MSLU is broken and sends TVN_SELCHANGEDA instead of + // TVN_SELCHANGEDW in Unicode mode under Win98. Therefore + // we have to handle both messages: + case TVN_SELCHANGEDA: + case TVN_SELCHANGEDW: + if ( !m_changingSelection ) + { + eventType = wxEVT_COMMAND_TREE_SEL_CHANGED; + } // fall through - case TVN_SELCHANGING: + case TVN_SELCHANGINGA: + case TVN_SELCHANGINGW: + if ( !m_changingSelection ) { if ( eventType == wxEVT_NULL ) eventType = wxEVT_COMMAND_TREE_SEL_CHANGING; //else: already set above - NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam; - - event.m_item = (WXHTREEITEM) tv->itemNew.hItem; - event.m_itemOld = (WXHTREEITEM) tv->itemOld.hItem; + if (hdr->code == TVN_SELCHANGINGW || + hdr->code == TVN_SELCHANGEDW) + { + NM_TREEVIEWW *tv = (NM_TREEVIEWW *)lParam; + event.m_item = tv->itemNew.hItem; + event.m_itemOld = tv->itemOld.hItem; + } + else + { + NM_TREEVIEWA *tv = (NM_TREEVIEWA *)lParam; + event.m_item = tv->itemNew.hItem; + event.m_itemOld = tv->itemOld.hItem; + } } + + // we receive this message from WM_LBUTTONDOWN handler inside + // comctl32.dll and so before the click is passed to + // DefWindowProc() which sets the focus to the window which was + // clicked and this can lead to unexpected event sequences: for + // example, we may get a "selection change" event from the tree + // before getting a "kill focus" event for the text control which + // had the focus previously, thus breaking user code doing input + // validation + // + // to avoid such surprises, we force the generation of focus events + // now, before we generate the selection change ones + if ( !m_changingSelection && !m_isBeingDeleted ) + SetFocus(); break; -#if defined(_WIN32_IE) && _WIN32_IE >= 0x300 && !wxUSE_COMCTL32_SAFELY && !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) ) + // instead of explicitly checking for _WIN32_IE, check if the + // required symbols are available in the headers +#if defined(CDDS_PREPAINT) case NM_CUSTOMDRAW: { LPNMTVCUSTOMDRAW lptvcd = (LPNMTVCUSTOMDRAW)lParam; @@ -2377,74 +3496,130 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) // notify us before painting each item *result = m_hasAnyAttr ? CDRF_NOTIFYITEMDRAW : CDRF_DODEFAULT; - break; - case CDDS_ITEMPREPAINT: + // windows in TreeCtrl use one-based index for item state images, + // 0 indexed image is not being used, we're using zero-based index, + // so we have to add temp image (of zero index) to state image list + // before we draw any item, then after items are drawn we have to + // delete it (in POSTPAINT notify) + if (m_imageListState && m_imageListState->GetImageCount() > 0) { - wxTreeItemAttr *attr = - (wxTreeItemAttr *)m_attrs.Get(nmcd.dwItemSpec); + typedef BOOL (wxSTDCALL *ImageList_Copy_t) + (HIMAGELIST, int, HIMAGELIST, int, UINT); + static ImageList_Copy_t s_pfnImageList_Copy = NULL; + static bool loaded = false; - if ( !attr ) + if ( !loaded ) { - // nothing to do for this item - *result = CDRF_DODEFAULT; - break; + wxLoadedDLL dllComCtl32(wxT("comctl32.dll")); + if ( dllComCtl32.IsLoaded() ) + { + wxDL_INIT_FUNC(s_pfn, ImageList_Copy, dllComCtl32); + loaded = true; + } } - HFONT hFont; - if ( attr->HasFont() ) - { - hFont = GetHfontOf(attr->GetFont()); - } - else + if ( !s_pfnImageList_Copy ) { - hFont = 0; + // this code is broken with ImageList_Copy() + // but I don't care enough about Win95 support + // to write it now -- if anybody does, please + // do it + wxFAIL_MSG("TODO: implement this for Win95"); + break; } - wxColour colText; - if ( attr->HasTextColour() ) - { - colText = attr->GetTextColour(); - } - else + const HIMAGELIST + hImageList = GetHimagelistOf(m_imageListState); + + // add temporary image + int width, height; + m_imageListState->GetSize(0, width, height); + + HBITMAP hbmpTemp = ::CreateBitmap(width, height, 1, 1, NULL); + int index = ::ImageList_Add(hImageList, hbmpTemp, hbmpTemp); + ::DeleteObject(hbmpTemp); + + if ( index != -1 ) { - colText = GetForegroundColour(); + // move images to right + for ( int i = index; i > 0; i-- ) + { + (*s_pfnImageList_Copy)(hImageList, i, + hImageList, i-1, + ILCF_MOVE); + } + + // we must remove the image in POSTPAINT notify + *result |= CDRF_NOTIFYPOSTPAINT; } + } + break; - // selection colours should override ours - if ( nmcd.uItemState & CDIS_SELECTED ) + case CDDS_POSTPAINT: + // we are deleting temp image of 0 index, which was + // added before items were drawn (in PREPAINT notify) + if (m_imageListState && m_imageListState->GetImageCount() > 0) + m_imageListState->Remove(0); + break; + + case CDDS_ITEMPREPAINT: + { + wxMapTreeAttr::iterator + it = m_attrs.find((void *)nmcd.dwItemSpec); + + if ( it == m_attrs.end() ) { - lptvcd->clrTextBk = - ::GetSysColor(COLOR_HIGHLIGHT); - lptvcd->clrText = - ::GetSysColor(COLOR_HIGHLIGHTTEXT); + // nothing to do for this item + *result = CDRF_DODEFAULT; + break; } - else // !selected + + wxTreeItemAttr * const attr = it->second; + + wxTreeViewItem tvItem((void *)nmcd.dwItemSpec, + TVIF_STATE, TVIS_DROPHILITED); + DoGetItem(&tvItem); + const UINT tvItemState = tvItem.state; + + // selection colours should override ours, + // otherwise it is too confusing to the user + if ( !(nmcd.uItemState & CDIS_SELECTED) && + !(tvItemState & TVIS_DROPHILITED) ) { wxColour colBack; if ( attr->HasBackgroundColour() ) { colBack = attr->GetBackgroundColour(); + lptvcd->clrTextBk = wxColourToRGB(colBack); } - else + } + + // but we still want to keep the special foreground + // colour when we don't have focus (we can't keep + // it when we do, it would usually be unreadable on + // the almost inverted bg colour...) + if ( ( !(nmcd.uItemState & CDIS_SELECTED) || + FindFocus() != this ) && + !(tvItemState & TVIS_DROPHILITED) ) + { + wxColour colText; + if ( attr->HasTextColour() ) { - colBack = GetBackgroundColour(); + colText = attr->GetTextColour(); + lptvcd->clrText = wxColourToRGB(colText); } - - lptvcd->clrText = wxColourToRGB(colText); - lptvcd->clrTextBk = wxColourToRGB(colBack); } - // note that if we wanted to set colours for - // individual columns (subitems), we would have - // returned CDRF_NOTIFYSUBITEMREDRAW from here - if ( hFont ) + if ( attr->HasFont() ) { + HFONT hFont = GetHfontOf(attr->GetFont()); + ::SelectObject(nmcd.hdc, hFont); *result = CDRF_NEWFONT; } - else + else // no specific font { *result = CDRF_DODEFAULT; } @@ -2457,20 +3632,39 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) } // we always process it - return TRUE; -#endif // _WIN32_IE >= 0x300 + return true; +#endif // have owner drawn support in headers + + case NM_CLICK: + { + DWORD pos = GetMessagePos(); + POINT point; + point.x = LOWORD(pos); + point.y = HIWORD(pos); + ::MapWindowPoints(HWND_DESKTOP, GetHwnd(), &point, 1); + int htFlags = 0; + wxTreeItemId item = HitTest(wxPoint(point.x, point.y), htFlags); + + if ( htFlags & wxTREE_HITTEST_ONITEMSTATEICON ) + { + event.m_item = item; + eventType = wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK; + } + + break; + } case NM_DBLCLK: case NM_RCLICK: { TV_HITTESTINFO tvhti; - ::GetCursorPos(&tvhti.pt); + wxGetCursorPosMSW(&tvhti.pt); ::ScreenToClient(GetHwnd(), &tvhti.pt); if ( TreeView_HitTest(GetHwnd(), &tvhti) ) { - if ( tvhti.flags & TVHT_ONITEM ) + if ( MSWIsOnItem(tvhti.flags) ) { - event.m_item = (WXHTREEITEM) tvhti.hItem; + event.m_item = tvhti.hItem; eventType = (int)hdr->code == NM_DBLCLK ? wxEVT_COMMAND_TREE_ITEM_ACTIVATED : wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK; @@ -2488,77 +3682,84 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) return wxControl::MSWOnNotify(idCtrl, lParam, result); } - event.SetEventObject(this); event.SetEventType(eventType); - bool processed = GetEventHandler()->ProcessEvent(event); + bool processed = HandleTreeEvent(event); // post processing switch ( hdr->code ) { case NM_DBLCLK: - // we translate NM_DBLCLK into ACTIVATED event, so don't interpret - // the return code of this event handler as the return value for - // NM_DBLCLK - otherwise, double clicking the item to toggle its - // expanded status would never work - *result = FALSE; + // we translate NM_DBLCLK into ACTIVATED event and if the user + // handled the activation of the item we shouldn't proceed with + // also using the same double click for toggling the item expanded + // state -- but OTOH do let the user to expand/collapse the item by + // double clicking on it if the activation is not handled specially + *result = processed; + break; + + case NM_RCLICK: + // prevent tree control from sending WM_CONTEXTMENU to our parent + // (which it does if NM_RCLICK is not handled) because we want to + // send it to the control itself + *result = + processed = true; + + ::SendMessage(GetHwnd(), WM_CONTEXTMENU, + (WPARAM)GetHwnd(), ::GetMessagePos()); break; case TVN_BEGINDRAG: case TVN_BEGINRDRAG: +#if wxUSE_DRAGIMAGE if ( event.IsAllowed() ) { // normally this is impossible because the m_dragImage is // deleted once the drag operation is over - wxASSERT_MSG( !m_dragImage, _T("starting to drag once again?") ); + wxASSERT_MSG( !m_dragImage, wxT("starting to drag once again?") ); m_dragImage = new wxDragImage(*this, event.m_item); - m_dragImage->BeginDrag(wxPoint(0, 0), this); + m_dragImage->BeginDrag(wxPoint(0,0), this); m_dragImage->Show(); + + m_dragStarted = true; } +#endif // wxUSE_DRAGIMAGE break; case TVN_DELETEITEM: { - // NB: we might process this message using wxWindows event + // NB: we might process this message using wxWidgets event // tables, but due to overhead of wxWin event system we // prefer to do it here ourself (otherwise deleting a tree // with many items is just too slow) - NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam; + NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam; - wxTreeItemId item = event.m_item; - if ( HasIndirectData(item) ) - { - wxTreeItemIndirectData *data = (wxTreeItemIndirectData *) - tv->itemOld.lParam; - delete data; // can't be NULL here - } - else - { - wxTreeItemData *data = (wxTreeItemData *)tv->itemOld.lParam; - delete data; // may be NULL, ok - } + wxTreeItemParam *param = + (wxTreeItemParam *)tv->itemOld.lParam; + delete param; - processed = TRUE; // Make sure we don't get called twice + processed = true; // Make sure we don't get called twice } break; case TVN_BEGINLABELEDIT: - // return TRUE to cancel label editing + // return true to cancel label editing *result = !event.IsAllowed(); + // set ES_WANTRETURN ( like we do in BeginLabelEdit ) - if(event.IsAllowed()) + if ( event.IsAllowed() ) { HWND hText = TreeView_GetEditControl(GetHwnd()); - if(hText != NULL) + if ( hText ) { - // MBN: if m_textCtrl already has an HWND, it is a stale + // MBN: if m_textCtrl already has an HWND, it is a stale // pointer from a previous edit (because the user // didn't modify the label before dismissing the control, // and TVN_ENDLABELEDIT was not sent), so delete it - if(m_textCtrl && m_textCtrl->GetHWND() != 0) + if ( m_textCtrl && m_textCtrl->GetHWND() ) DeleteTextCtrl(); - if(!m_textCtrl) + if ( !m_textCtrl ) m_textCtrl = new wxTextCtrl(); m_textCtrl->SetParent(this); m_textCtrl->SetHWND((WXHWND)hText); @@ -2572,39 +3773,80 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) | wxTE_PROCESS_ENTER); } } + else // we had set m_idEdited before + { + m_idEdited.Unset(); + } break; case TVN_ENDLABELEDIT: - // return TRUE to set the label to the new string: note that we + // return true to set the label to the new string: note that we // also must pretend that we did process the message or it is going - // to be passed to DefWindowProc() which will happily return FALSE + // to be passed to DefWindowProc() which will happily return false // cancelling the label change *result = event.IsAllowed(); - processed = TRUE; + processed = true; // ensure that we don't have the text ctrl which is going to be // deleted any more DeleteTextCtrl(); break; +#ifndef __WXWINCE__ +#ifdef TVN_GETINFOTIP + case TVN_GETINFOTIP: + { + // If the user permitted a tooltip change, change it + if (event.IsAllowed()) + { + SetToolTip(event.m_label); + } + } + break; +#endif +#endif + case TVN_SELCHANGING: case TVN_ITEMEXPANDING: - // return TRUE to prevent the action from happening + // return true to prevent the action from happening *result = !event.IsAllowed(); break; case TVN_ITEMEXPANDED: - // the item is not refreshed properly after expansion when it has - // an image depending on the expanded/collapsed state - bug in - // comctl32.dll or our code? { - NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam; - wxTreeItemId id = (WXHTREEITEM)tv->itemNew.hItem; + NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam; + const wxTreeItemId id(tv->itemNew.hItem); - int image = GetItemImage(id, wxTreeItemIcon_Expanded); - if ( image != -1 ) + if ( tv->action == TVE_COLLAPSE ) + { + if ( wxApp::GetComCtl32Version() >= 600 ) + { + // for some reason the item selection rectangle depends + // on whether it is expanded or collapsed (at least + // with comctl32.dll v6): it is wider (by 3 pixels) in + // the expanded state, so when the item collapses and + // then is deselected the rightmost 3 pixels of the + // previously drawn selection are left on the screen + // + // it's not clear if it's a bug in comctl32.dll or in + // our code (because it does not happen in Explorer but + // OTOH we don't do anything which could result in this + // AFAICS) but we do need to work around it to avoid + // ugly artifacts + RefreshItem(id); + } + } + else // expand { - RefreshItem(id); + // the item is also not refreshed properly after expansion when + // it has an image depending on the expanded/collapsed state: + // again, it's not clear if the bug is in comctl32.dll or our + // code... + int image = GetItemImage(id, wxTreeItemIcon_Expanded); + if ( image != -1 ) + { + RefreshItem(id); + } } } break; @@ -2612,16 +3854,20 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) case TVN_GETDISPINFO: // NB: so far the user can't set the image himself anyhow, so do it // anyway - but this may change later - //if ( /* !processed && */ 1 ) + //if ( /* !processed && */ ) { wxTreeItemId item = event.m_item; TV_DISPINFO *info = (TV_DISPINFO *)lParam; + + const wxTreeItemParam * const param = GetItemParam(item); + if ( !param ) + break; + if ( info->item.mask & TVIF_IMAGE ) { info->item.iImage = - DoGetItemImageFromData + param->GetImage ( - item, IsExpanded(item) ? wxTreeItemIcon_Expanded : wxTreeItemIcon_Normal ); @@ -2629,9 +3875,8 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) if ( info->item.mask & TVIF_SELECTEDIMAGE ) { info->item.iSelectedImage = - DoGetItemImageFromData + param->GetImage ( - item, IsExpanded(item) ? wxTreeItemIcon_SelectedExpanded : wxTreeItemIcon_Selected ); @@ -2646,6 +3891,64 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) return processed; } -#endif // __WIN95__ +// ---------------------------------------------------------------------------- +// State control. +// ---------------------------------------------------------------------------- + +// why do they define INDEXTOSTATEIMAGEMASK but not the inverse? +#define STATEIMAGEMASKTOINDEX(state) (((state) & TVIS_STATEIMAGEMASK) >> 12) + +int wxTreeCtrl::DoGetItemState(const wxTreeItemId& item) const +{ + wxCHECK_MSG( item.IsOk(), wxTREE_ITEMSTATE_NONE, wxT("invalid tree item") ); + + // receive the desired information + wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK); + DoGetItem(&tvItem); + + // state images are one-based + return STATEIMAGEMASKTOINDEX(tvItem.state) - 1; +} + +void wxTreeCtrl::DoSetItemState(const wxTreeItemId& item, int state) +{ + wxCHECK_RET( item.IsOk(), wxT("invalid tree item") ); + + wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK); + + // state images are one-based + // 0 if no state image display (wxTREE_ITEMSTATE_NONE = -1) + tvItem.state = INDEXTOSTATEIMAGEMASK(state + 1); + + DoSetItem(&tvItem); +} + +// ---------------------------------------------------------------------------- +// Update locking. +// ---------------------------------------------------------------------------- + +// Using WM_SETREDRAW with the native control is a bad idea as it's broken in +// some Windows versions (see http://support.microsoft.com/kb/130611) and +// doesn't seem to do anything in other ones (e.g. under Windows 7 the tree +// control keeps updating its scrollbars while the items are added to it, +// resulting in horrible flicker when adding even a couple of dozen items). +// So we hide it instead of freezing -- this still flickers, but actually not +// as badly as it would if we didn't do it. + +void wxTreeCtrl::DoFreeze() +{ + // Notice that we don't call wxWindow::Hide() here as we want the window to + // remain shown from wxWidgets point of view and also because + // wxWindowMSW::Show() calls Do{Freeze,Thaw}() itself, so we'd get into + // infinite recursion this way. + if ( IsShown() ) + ::ShowWindow(GetHwnd(), SW_HIDE); +} + +void wxTreeCtrl::DoThaw() +{ + if ( IsShown() ) + ::ShowWindow(GetHwnd(), SW_SHOW); +} #endif // wxUSE_TREECTRL