X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/53f69f7a047a5d17009aaa44d086f98ce1f9d8db..4def3b359546ee186b3db723db719f85b761f36a:/src/msw/treectrl.cpp diff --git a/src/msw/treectrl.cpp b/src/msw/treectrl.cpp index b7a0473428..7f4fc40a5c 100644 --- a/src/msw/treectrl.cpp +++ b/src/msw/treectrl.cpp @@ -27,12 +27,10 @@ #pragma hdrstop #endif -#include "wx/window.h" #include "wx/msw/private.h" -#ifndef WX_PRECOMP - #include "wx/settings.h" -#endif +// Set this to 1 to be _absolutely_ sure that repainting will work for all comctl32.dll versions +#define wxUSE_COMCTL32_SAFELY 0 // Mingw32 is a bit mental even though this is done in winundef #ifdef GetFirstChild @@ -48,13 +46,15 @@ #include "wx/log.h" #include "wx/dynarray.h" #include "wx/imaglist.h" -#include "wx/treectrl.h" +#include "wx/settings.h" +#include "wx/msw/treectrl.h" +#include "wx/msw/dragimag.h" -#ifdef __GNUWIN32__ -#include "wx/msw/gnuwin32/extra.h" +#ifdef __GNUWIN32_OLD__ + #include "wx/msw/gnuwin32/extra.h" #endif -#if (defined(__WIN95__) && !defined(__GNUWIN32__)) || defined(__TWIN32__) +#if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) || defined(__TWIN32__)) #include #endif @@ -63,36 +63,393 @@ #define TVIS_FOCUSED 0x0001 #endif +#ifndef TV_FIRST + #define TV_FIRST 0x1100 +#endif + +#ifndef TVS_CHECKBOXES + #define TVS_CHECKBOXES 0x0100 +#endif + +// 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 + + +// ---------------------------------------------------------------------------- +// private functions +// ---------------------------------------------------------------------------- + +// wrapper for TreeView_HitTest +static HTREEITEM GetItemFromPoint(HWND hwndTV, int x, int y) +{ + TV_HITTESTINFO tvht; + tvht.pt.x = x; + tvht.pt.y = y; + + return (HTREEITEM)TreeView_HitTest(hwndTV, &tvht); +} + +#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE + +// 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; + + if ( !TreeView_GetItem(hwndTV, &tvi) ) + { + wxLogLastError(wxT("TreeView_GetItem")); + } + + return (tvi.state & TVIS_SELECTED) != 0; +} + +static void SelectItem(HWND hwndTV, HTREEITEM hItem, bool select = TRUE) +{ + TV_ITEM tvi; + tvi.mask = TVIF_STATE | TVIF_HANDLE; + tvi.stateMask = TVIS_SELECTED; + tvi.state = select ? TVIS_SELECTED : 0; + tvi.hItem = hItem; + + if ( TreeView_SetItem(hwndTV, &tvi) == -1 ) + { + wxLogLastError(wxT("TreeView_SetItem")); + } +} + +static inline void UnselectItem(HWND hwndTV, HTREEITEM htItem) +{ + SelectItem(hwndTV, htItem, FALSE); +} + +static inline void ToggleItemSelection(HWND hwndTV, HTREEITEM htItem) +{ + SelectItem(hwndTV, htItem, !IsItemSelected(hwndTV, htItem)); +} + +// helper function which selects all items in a range and, optionally, +// unselects all others +static void SelectRange(HWND hwndTV, + HTREEITEM htFirst, + HTREEITEM htLast, + bool unselectOthers = TRUE) +{ + // find the first (or last) item and select it + bool cont = TRUE; + HTREEITEM htItem = (HTREEITEM)TreeView_GetRoot(hwndTV); + while ( htItem && cont ) + { + if ( (htItem == htFirst) || (htItem == htLast) ) + { + if ( !IsItemSelected(hwndTV, htItem) ) + { + SelectItem(hwndTV, htItem); + } + + cont = FALSE; + } + else + { + if ( unselectOthers && IsItemSelected(hwndTV, htItem) ) + { + UnselectItem(hwndTV, htItem); + } + } + + htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem); + } + + // select the items in range + cont = htFirst != htLast; + while ( htItem && cont ) + { + if ( !IsItemSelected(hwndTV, htItem) ) + { + SelectItem(hwndTV, htItem); + } + + cont = (htItem != htFirst) && (htItem != htLast); + + htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem); + } + + // unselect the rest + if ( unselectOthers ) + { + while ( htItem ) + { + if ( IsItemSelected(hwndTV, htItem) ) + { + UnselectItem(hwndTV, htItem); + } + + htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem); + } + } + + // seems to be necessary - otherwise the just selected items don't always + // appear as selected + UpdateWindow(hwndTV); +} + +// 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) +{ + // the current focus + HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(hwndTV); + + if ( htItem ) + { + // set the focus + if ( htItem != htFocus ) + { + // 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); + } + + 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 + } + //else: nothing to do, focus already there + } + else + { + if ( htFocus ) + { + bool wasFocusSelected = IsItemSelected(hwndTV, htFocus); + + // just clear the focus + TreeView_SelectItem(hwndTV, 0); + + if ( wasFocusSelected ) + { + // restore the selection state + SelectItem(hwndTV, htFocus); + } + } + //else: nothing to do, no focus already + } +} + +#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE + // ---------------------------------------------------------------------------- // private classes // ---------------------------------------------------------------------------- // a convenient wrapper around TV_ITEM struct which adds a ctor +#ifdef __VISUALC__ +#pragma warning( disable : 4097 ) // inheriting from typedef +#endif + struct wxTreeViewItem : public TV_ITEM { - wxTreeViewItem(const wxTreeItemId& item, - UINT mask_, UINT stateMask_ = 0) + wxTreeViewItem(const wxTreeItemId& item, // the item handle + UINT mask_, // fields which are valid + UINT stateMask_ = 0) // for TVIF_STATE only { - mask = mask_; + // hItem member is always valid + mask = mask_ | TVIF_HANDLE; stateMask = stateMask_; - hItem = (HTREEITEM) (WXHTREEITEM) item; + hItem = HITEM(item); + } +}; + +#ifdef __VISUALC__ +#pragma warning( default : 4097 ) +#endif + +// a class which encapsulates the tree traversal logic: it vists all (unless +// OnVisit() returns FALSE) items under the given one +class wxTreeTraversal +{ +public: + wxTreeTraversal(const wxTreeCtrl *tree) + { + m_tree = tree; + } + + // 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); + + // override this function to do whatever is needed for each item, return + // FALSE to stop traversing + virtual bool OnVisit(const wxTreeItemId& item) = 0; + +protected: + const wxTreeCtrl *GetTree() const { return m_tree; } + +private: + bool Traverse(const wxTreeItemId& root, bool recursively); + + const wxTreeCtrl *m_tree; +}; + +// internal class for getting the selected items +class TraverseSelections : public wxTreeTraversal +{ +public: + TraverseSelections(const wxTreeCtrl *tree, + wxArrayTreeItemIds& selections) + : wxTreeTraversal(tree), m_selections(selections) + { + m_selections.Empty(); + + DoTraverse(tree->GetRootItem()); + } + + virtual bool OnVisit(const wxTreeItemId& item) + { +#if wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE + if ( GetTree()->IsItemChecked(item) ) +#else + if ( ::IsItemSelected(GetHwndOf(GetTree()), HITEM(item)) ) +#endif + { + m_selections.Add(item); + } + + return TRUE; + } + + size_t GetCount() const { return m_selections.GetCount(); } + +private: + wxArrayTreeItemIds& m_selections; +}; + +// internal class for counting tree items +class TraverseCounter : public wxTreeTraversal +{ +public: + TraverseCounter(const wxTreeCtrl *tree, + const wxTreeItemId& root, + bool recursively) + : wxTreeTraversal(tree) + { + m_count = 0; + + DoTraverse(root, recursively); + } + + virtual bool OnVisit(const wxTreeItemId& WXUNUSED(item)) + { + m_count++; + + return TRUE; } + + size_t GetCount() const { return m_count; } + +private: + size_t m_count; }; // ---------------------------------------------------------------------------- -// macros +// 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 have to maintain a list of all items which +// have indirect data inside the listctrl itself. // ---------------------------------------------------------------------------- -#if !USE_SHARED_LIBRARY - IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxControl) -#endif +class wxTreeItemIndirectData +{ +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); + } + + // dtor deletes the associated data as well + ~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]; + + wxTreeItemData *m_data; +}; + +// ---------------------------------------------------------------------------- +// wxWin macros +// ---------------------------------------------------------------------------- + +IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxControl) // ---------------------------------------------------------------------------- // variables // ---------------------------------------------------------------------------- // handy table for sending events -static const wxEventType g_events[2][2] = +static wxEventType g_events[2][2] = { { wxEVT_COMMAND_TREE_ITEM_COLLAPSED, wxEVT_COMMAND_TREE_ITEM_COLLAPSING }, { wxEVT_COMMAND_TREE_ITEM_EXPANDED, wxEVT_COMMAND_TREE_ITEM_EXPANDING } @@ -102,6 +459,37 @@ static const wxEventType g_events[2][2] = // implementation // ============================================================================ +// ---------------------------------------------------------------------------- +// tree traversal +// ---------------------------------------------------------------------------- + +bool wxTreeTraversal::DoTraverse(const wxTreeItemId& root, bool recursively) +{ + if ( !OnVisit(root) ) + return FALSE; + + return Traverse(root, recursively); +} + +bool wxTreeTraversal::Traverse(const wxTreeItemId& root, bool recursively) +{ + long cookie; + wxTreeItemId child = m_tree->GetFirstChild(root, cookie); + while ( child.IsOk() ) + { + // depth first traversal + if ( recursively && !Traverse(child, TRUE) ) + return FALSE; + + if ( !OnVisit(child) ) + return FALSE; + + child = m_tree->GetNextChild(root, cookie); + } + + return TRUE; +} + // ---------------------------------------------------------------------------- // construction and destruction // ---------------------------------------------------------------------------- @@ -110,40 +498,39 @@ void wxTreeCtrl::Init() { m_imageListNormal = NULL; m_imageListState = NULL; + m_ownsImageListNormal = m_ownsImageListState = FALSE; m_textCtrl = NULL; + m_hasAnyAttr = FALSE; + m_dragImage = NULL; + m_htSelStart = 0; + + // Initialize static array of events, because with the new event system, + // they may not be initialized yet. + + g_events[0][0] = wxEVT_COMMAND_TREE_ITEM_COLLAPSED; + g_events[0][1] = wxEVT_COMMAND_TREE_ITEM_COLLAPSING; + g_events[1][0] = wxEVT_COMMAND_TREE_ITEM_EXPANDED; + g_events[1][1] = wxEVT_COMMAND_TREE_ITEM_EXPANDING; } -bool wxTreeCtrl::Create(wxWindow *parent, wxWindowID id, - const wxPoint& pos, const wxSize& size, - long style, const wxValidator& validator, +bool wxTreeCtrl::Create(wxWindow *parent, + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxValidator& validator, const wxString& name) { Init(); - wxSystemSettings settings; - - SetName(name); - SetValidator(validator); - - m_windowStyle = style; - - SetParent(parent); - - m_windowId = (id == -1) ? NewControlId() : id; + if ( !CreateControl(parent, id, pos, size, style, validator, name) ) + return FALSE; DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP | - TVS_HASLINES | TVS_SHOWSELALWAYS; - - bool want3D; - WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ; - - // Even with extended styles, need to combine with WS_BORDER - // for them to look right. - if ( want3D || wxStyleHasBorder(m_windowStyle) ) - { - wstyle |= WS_BORDER; - } + TVS_SHOWSELALWAYS /* | WS_CLIPSIBLINGS */; + if ((m_windowStyle & wxTR_NO_LINES) == 0) + wstyle |= TVS_HASLINES; if ( m_windowStyle & wxTR_HAS_BUTTONS ) wstyle |= TVS_HASBUTTONS; @@ -153,36 +540,119 @@ bool wxTreeCtrl::Create(wxWindow *parent, wxWindowID id, if ( m_windowStyle & wxTR_LINES_AT_ROOT ) wstyle |= TVS_LINESATROOT; + // 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 + // Create the tree control. - m_hWnd = (WXHWND)::CreateWindowEx - ( - exStyle, - WC_TREEVIEW, - _T(""), - wstyle, - pos.x, pos.y, size.x, size.y, - (HWND)parent->GetHWND(), - (HMENU)m_windowId, - wxGetInstance(), - NULL - ); - - wxCHECK_MSG( m_hWnd, FALSE, _T("Failed to create tree ctrl") ); - - if ( parent ) - parent->AddChild(this); - - SubclassWin(m_hWnd); + if ( !MSWCreateControl(WC_TREEVIEW, wstyle) ) + return FALSE; + +#if wxUSE_COMCTL32_SAFELY + wxWindow::SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); + wxWindow::SetForegroundColour(wxWindow::GetParent()->GetForegroundColour()); +#elif 1 + SetBackgroundColour(wxSystemSettings::GetSystemColour(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::GetSystemColour(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); + + if ( !::DrawFrameControl(hdcMem, &rect, + DFC_BUTTON, + DFCS_BUTTONCHECK) ) + { + wxLogLastError(wxT("DrawFrameControl(uncheck)")); + } + + 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; } wxTreeCtrl::~wxTreeCtrl() { + // delete any attributes + if ( m_hasAnyAttr ) + { + for ( wxNode *node = m_attrs.Next(); node; node = m_attrs.Next() ) + { + delete (wxTreeItemAttr *)node->Data(); + } + + // prevent TVN_DELETEITEM handler from deleting the attributes again! + m_hasAnyAttr = FALSE; + } + DeleteTextCtrl(); // delete user data to prevent memory leaks DeleteAllItems(); + + if (m_ownsImageListNormal) delete m_imageListNormal; + if (m_ownsImageListState) delete m_imageListState; } // ---------------------------------------------------------------------------- @@ -195,7 +665,7 @@ bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const { if ( !TreeView_GetItem(GetHwnd(), tvItem) ) { - wxLogLastError("TreeView_GetItem"); + wxLogLastError(wxT("TreeView_GetItem")); return FALSE; } @@ -207,7 +677,7 @@ void wxTreeCtrl::DoSetItem(wxTreeViewItem* tvItem) { if ( TreeView_SetItem(GetHwnd(), tvItem) == -1 ) { - wxLogLastError("TreeView_SetItem"); + wxLogLastError(wxT("TreeView_SetItem")); } } @@ -246,37 +716,64 @@ void wxTreeCtrl::SetAnyImageList(wxImageList *imageList, int which) void wxTreeCtrl::SetImageList(wxImageList *imageList) { + if (m_ownsImageListNormal) delete m_imageListNormal; SetAnyImageList(m_imageListNormal = imageList, TVSIL_NORMAL); + m_ownsImageListNormal = FALSE; } void wxTreeCtrl::SetStateImageList(wxImageList *imageList) { + if (m_ownsImageListState) delete m_imageListState; SetAnyImageList(m_imageListState = imageList, TVSIL_STATE); + m_ownsImageListState = FALSE; } -size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item, bool recursively) +void wxTreeCtrl::AssignImageList(wxImageList *imageList) { - long cookie; + SetImageList(imageList); + m_ownsImageListNormal = TRUE; +} - size_t result = 0; +void wxTreeCtrl::AssignStateImageList(wxImageList *imageList) +{ + SetStateImageList(imageList); + m_ownsImageListState = TRUE; +} - wxArrayLong children; - wxTreeItemId child = GetFirstChild(item, cookie); - while ( child.IsOk() ) - { - if ( recursively ) - { - // recursive call - result += GetChildrenCount(child, TRUE); - } +size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item, + bool recursively) const +{ + TraverseCounter counter(this, item, recursively); - // add the child to the result in any case - result++; + return counter.GetCount() - 1; +} - child = GetNextChild(item, cookie); - } +// ---------------------------------------------------------------------------- +// control colours +// ---------------------------------------------------------------------------- + +bool wxTreeCtrl::SetBackgroundColour(const wxColour &colour) +{ +#if !wxUSE_COMCTL32_SAFELY + if ( !wxWindowBase::SetBackgroundColour(colour) ) + return FALSE; + + SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0, colour.GetPixel()); +#endif + + return TRUE; +} - return result; +bool wxTreeCtrl::SetForegroundColour(const wxColour &colour) +{ +#if !wxUSE_COMCTL32_SAFELY + if ( !wxWindowBase::SetForegroundColour(colour) ) + return FALSE; + + SendMessage(GetHwnd(), TVM_SETTEXTCOLOR, 0, colour.GetPixel()); +#endif + + return TRUE; } // ---------------------------------------------------------------------------- @@ -293,7 +790,7 @@ wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const if ( !DoGetItem(&tvItem) ) { // don't return some garbage which was on stack, but an empty string - buf[0] = _T('\0'); + buf[0] = wxT('\0'); } return wxString(buf); @@ -306,34 +803,140 @@ void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text) DoSetItem(&tvItem); } -int wxTreeCtrl::GetItemImage(const wxTreeItemId& item) const +int wxTreeCtrl::DoGetItemImageFromData(const wxTreeItemId& item, + wxTreeItemIcon which) const { - wxTreeViewItem tvItem(item, TVIF_IMAGE); - DoGetItem(&tvItem); + wxTreeViewItem tvItem(item, TVIF_PARAM); + if ( !DoGetItem(&tvItem) ) + { + return -1; + } - return tvItem.iImage; + return ((wxTreeItemIndirectData *)tvItem.lParam)->GetImage(which); } -void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image) +void wxTreeCtrl::DoSetItemImageFromData(const wxTreeItemId& item, + int image, + wxTreeItemIcon which) const { - wxTreeViewItem tvItem(item, TVIF_IMAGE); + 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::GetItemSelectedImage(const wxTreeItemId& item) const +int wxTreeCtrl::GetItemImage(const wxTreeItemId& item, + wxTreeItemIcon which) const { - wxTreeViewItem tvItem(item, TVIF_SELECTEDIMAGE); + if ( HasIndirectData(item) ) + { + return DoGetItemImageFromData(item, which); + } + + UINT mask; + switch ( which ) + { + 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; + } + + wxTreeViewItem tvItem(item, mask); DoGetItem(&tvItem); - return tvItem.iSelectedImage; -} + return mask == TVIF_IMAGE ? tvItem.iImage : tvItem.iSelectedImage; +} + +void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image, + wxTreeItemIcon which) +{ + 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); + + // 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; + } -void wxTreeCtrl::SetItemSelectedImage(const wxTreeItemId& item, int image) -{ - wxTreeViewItem tvItem(item, TVIF_SELECTEDIMAGE); - tvItem.iSelectedImage = image; - DoSetItem(&tvItem); + // 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); } wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const @@ -344,14 +947,61 @@ wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const return NULL; } - return (wxTreeItemData *)tvItem.lParam; + if ( HasIndirectData(item) ) + { + return ((wxTreeItemIndirectData *)tvItem.lParam)->GetData(); + } + else + { + return (wxTreeItemData *)tvItem.lParam; + } } void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data) { + // first, associate this piece of data with this item + if ( data ) + { + data->SetId(item); + } + wxTreeViewItem tvItem(item, TVIF_PARAM); - tvItem.lParam = (LPARAM)data; - DoSetItem(&tvItem); + + 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); + } +} + +void wxTreeCtrl::SetIndirectItemData(const wxTreeItemId& item, + wxTreeItemIndirectData *data) +{ + // 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?") ); + + SetItemData(item, (wxTreeItemData *)data); + + m_itemsWithIndirectData.Add(item); +} + +bool wxTreeCtrl::HasIndirectData(const wxTreeItemId& item) const +{ + return m_itemsWithIndirectData.Index(item) != wxNOT_FOUND; } void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has) @@ -375,6 +1025,53 @@ void wxTreeCtrl::SetItemDropHighlight(const wxTreeItemId& item, bool highlight) DoSetItem(&tvItem); } +void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item, + const wxColour& col) +{ + m_hasAnyAttr = TRUE; + + long id = (long)(WXHTREEITEM)item; + wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id); + if ( !attr ) + { + attr = new wxTreeItemAttr; + m_attrs.Put(id, (wxObject *)attr); + } + + attr->SetTextColour(col); +} + +void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item, + const wxColour& col) +{ + m_hasAnyAttr = TRUE; + + long id = (long)(WXHTREEITEM)item; + wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id); + if ( !attr ) + { + attr = new wxTreeItemAttr; + m_attrs.Put(id, (wxObject *)attr); + } + + attr->SetBackgroundColour(col); +} + +void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font) +{ + m_hasAnyAttr = TRUE; + + long id = (long)(WXHTREEITEM)item; + wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id); + if ( !attr ) + { + attr = new wxTreeItemAttr; + m_attrs.Put(id, (wxObject *)attr); + } + + attr->SetFont(font); +} + // ---------------------------------------------------------------------------- // Item status // ---------------------------------------------------------------------------- @@ -383,6 +1080,12 @@ bool wxTreeCtrl::IsVisible(const wxTreeItemId& item) const { // Bug in Gnu-Win32 headers, so don't use the macro TreeView_GetItemRect RECT rect; + + // this ugliness comes directly from MSDN - it *is* the correct way to pass + // the HTREEITEM with TVM_GETITEMRECT + *(WXHTREEITEM *)&rect = (WXHTREEITEM)item; + + // FALSE means get item rect for the whole item, not only text return SendMessage(GetHwnd(), TVM_GETITEMRECT, FALSE, (LPARAM)&rect) != 0; } @@ -433,19 +1136,22 @@ wxTreeItemId wxTreeCtrl::GetRootItem() const wxTreeItemId wxTreeCtrl::GetSelection() const { + wxCHECK_MSG( !(m_windowStyle & wxTR_MULTIPLE), (long)(WXHTREEITEM)0, + wxT("this only works with single selection controls") ); + return wxTreeItemId((WXHTREEITEM) TreeView_GetSelection(GetHwnd())); } wxTreeItemId wxTreeCtrl::GetParent(const wxTreeItemId& item) const { - return wxTreeItemId((WXHTREEITEM) TreeView_GetParent(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item)); + return wxTreeItemId((WXHTREEITEM) TreeView_GetParent(GetHwnd(), HITEM(item))); } wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item, long& _cookie) const { // remember the last child returned in 'cookie' - _cookie = (long)TreeView_GetChild(GetHwnd(), (HTREEITEM) (WXHTREEITEM)item); + _cookie = (long)TreeView_GetChild(GetHwnd(), HITEM(item)); return wxTreeItemId((WXHTREEITEM)_cookie); } @@ -454,7 +1160,7 @@ wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item), long& _cookie) const { wxTreeItemId l = wxTreeItemId((WXHTREEITEM)TreeView_GetNextSibling(GetHwnd(), - (HTREEITEM)(WXHTREEITEM)_cookie)); + HITEM(_cookie))); _cookie = (long)l; return l; @@ -478,12 +1184,12 @@ wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const wxTreeItemId wxTreeCtrl::GetNextSibling(const wxTreeItemId& item) const { - return wxTreeItemId((WXHTREEITEM) TreeView_GetNextSibling(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item)); + return wxTreeItemId((WXHTREEITEM) TreeView_GetNextSibling(GetHwnd(), HITEM(item))); } wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const { - return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevSibling(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item)); + return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevSibling(GetHwnd(), HITEM(item))); } wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const @@ -493,18 +1199,48 @@ wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const wxTreeItemId wxTreeCtrl::GetNextVisible(const wxTreeItemId& item) const { - wxASSERT_MSG( IsVisible(item), _T("The item you call GetNextVisible() " - "for must be visible itself!")); + wxASSERT_MSG( IsVisible(item), wxT("The item you call GetNextVisible() for must be visible itself!")); - return wxTreeItemId((WXHTREEITEM) TreeView_GetNextVisible(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item)); + return wxTreeItemId((WXHTREEITEM) TreeView_GetNextVisible(GetHwnd(), HITEM(item))); } wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const { - wxASSERT_MSG( IsVisible(item), _T("The item you call GetPrevVisible() " - "for must be visible itself!")); + wxASSERT_MSG( IsVisible(item), wxT("The item you call GetPrevVisible() for must be visible itself!")); + + return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevVisible(GetHwnd(), HITEM(item))); +} + +// ---------------------------------------------------------------------------- +// 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); + + // state images are one-based + tvItem.state = (check ? 2 : 1) << 12; + + DoSetItem(&tvItem); +} + +size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds& selections) const +{ + TraverseSelections selector(this, selections); - return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevVisible(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item)); + return selector.GetCount(); } // ---------------------------------------------------------------------------- @@ -517,12 +1253,17 @@ wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent, 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") ); + TV_INSERTSTRUCT tvIns; - tvIns.hParent = (HTREEITEM) (WXHTREEITEM)parent; - tvIns.hInsertAfter = (HTREEITEM) (WXHTREEITEM) hInsertAfter; + tvIns.hParent = HITEM(parent); + tvIns.hInsertAfter = HITEM(hInsertAfter); - // This is how we insert the item as the first child: supply a NULL hInsertAfter - if (tvIns.hInsertAfter == (HTREEITEM) 0) + // this is how we insert the item as the first child: supply a NULL + // hInsertAfter + if ( !tvIns.hInsertAfter ) { tvIns.hInsertAfter = TVI_FIRST; } @@ -533,6 +1274,11 @@ wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent, mask |= TVIF_TEXT; tvIns.item.pszText = (wxChar *)text.c_str(); // cast is ok } + else + { + tvIns.item.pszText = NULL; + tvIns.item.cchTextMax = 0; + } if ( image != -1 ) { @@ -563,7 +1309,7 @@ wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent, HTREEITEM id = (HTREEITEM) TreeView_InsertItem(GetHwnd(), &tvIns); if ( id == 0 ) { - wxLogLastError("TreeView_InsertItem"); + wxLogLastError(wxT("TreeView_InsertItem")); } if ( data != NULL ) @@ -589,7 +1335,7 @@ wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text, int image, int selectedImage, wxTreeItemData *data) { - return DoInsertItem(wxTreeItemId((WXHTREEITEM) 0), (WXHTREEITEM) 0, + return DoInsertItem(wxTreeItemId((long) (WXHTREEITEM) 0), (long)(WXHTREEITEM) 0, text, image, selectedImage, data); } @@ -611,6 +1357,30 @@ wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent, return DoInsertItem(parent, idPrevious, text, image, selectedImage, data); } +wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent, + size_t index, + const wxString& text, + int image, int selectedImage, + wxTreeItemData *data) +{ + // find the item from index + long cookie; + wxTreeItemId idPrev, idCur = GetFirstChild(parent, cookie); + while ( index != 0 && idCur.IsOk() ) + { + index--; + + 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, _T("bad index in wxTreeCtrl::InsertItem") ); + + return DoInsertItem(parent, idPrev, text, image, selectedImage, data); +} + wxTreeItemId wxTreeCtrl::AppendItem(const wxTreeItemId& parent, const wxString& text, int image, int selectedImage, @@ -622,9 +1392,9 @@ wxTreeItemId wxTreeCtrl::AppendItem(const wxTreeItemId& parent, void wxTreeCtrl::Delete(const wxTreeItemId& item) { - if ( !TreeView_DeleteItem(GetHwnd(), (HTREEITEM)(WXHTREEITEM)item) ) + if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) ) { - wxLogLastError("TreeView_DeleteItem"); + wxLogLastError(wxT("TreeView_DeleteItem")); } } @@ -647,7 +1417,7 @@ void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item) { if ( !TreeView_DeleteItem(GetHwnd(), (HTREEITEM)children[n]) ) { - wxLogLastError("TreeView_DeleteItem"); + wxLogLastError(wxT("TreeView_DeleteItem")); } } } @@ -656,7 +1426,7 @@ void wxTreeCtrl::DeleteAllItems() { if ( !TreeView_DeleteAllItems(GetHwnd()) ) { - wxLogLastError("TreeView_DeleteAllItems"); + wxLogLastError(wxT("TreeView_DeleteAllItems")); } } @@ -666,7 +1436,7 @@ void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag) flag == (TVE_COLLAPSE | TVE_COLLAPSERESET) || flag == TVE_EXPAND || flag == TVE_TOGGLE, - _T("Unknown flag in wxTreeCtrl::DoExpand") ); + wxT("Unknown flag in wxTreeCtrl::DoExpand") ); // TreeView_Expand doesn't send TVN_ITEMEXPAND(ING) messages, so we must // emulate them. This behaviour has changed slightly with comctl32.dll @@ -680,7 +1450,7 @@ void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag) tvItem.state = 0; DoSetItem(&tvItem); - if ( TreeView_Expand(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item, flag) != 0 ) + if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) != 0 ) { wxTreeEvent event(wxEVT_NULL, m_windowId); event.m_item = item; @@ -721,56 +1491,112 @@ void wxTreeCtrl::Toggle(const wxTreeItemId& item) void wxTreeCtrl::ExpandItem(const wxTreeItemId& item, int action) { - DoExpand(item, action); + DoExpand(item, action); } void wxTreeCtrl::Unselect() { - SelectItem(wxTreeItemId((WXHTREEITEM) 0)); + wxASSERT_MSG( !(m_windowStyle & wxTR_MULTIPLE), + wxT("doesn't make sense, may be you want UnselectAll()?") ); + + // just remove the selection + SelectItem(wxTreeItemId((long) (WXHTREEITEM) 0)); } -void wxTreeCtrl::SelectItem(const wxTreeItemId& item) +void wxTreeCtrl::UnselectAll() { - // 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 - - wxTreeEvent event(wxEVT_NULL, m_windowId); - event.m_item = item; - event.SetEventObject(this); - - event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGING); - if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() ) + if ( m_windowStyle & wxTR_MULTIPLE ) { - if ( !TreeView_SelectItem(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item) ) + wxArrayTreeItemIds selections; + size_t count = GetSelections(selections); + for ( size_t n = 0; n < count; n++ ) { - wxLogLastError("TreeView_SelectItem"); +#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 } - else + } + else + { + // just remove the selection + Unselect(); + } +} + +void wxTreeCtrl::SelectItem(const wxTreeItemId& item) +{ + if ( m_windowStyle & wxTR_MULTIPLE ) + { +#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 + } + else + { + // 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 + + wxTreeEvent event(wxEVT_NULL, m_windowId); + event.m_item = item; + event.SetEventObject(this); + + event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGING); + if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() ) { - event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED); - (void)GetEventHandler()->ProcessEvent(event); + if ( !TreeView_SelectItem(GetHwnd(), HITEM(item)) ) + { + wxLogLastError(wxT("TreeView_SelectItem")); + } + else + { + event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED); + (void)GetEventHandler()->ProcessEvent(event); + } } + //else: program vetoed the change } - //else: program vetoed the change } void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item) { // no error return - TreeView_EnsureVisible(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item); + TreeView_EnsureVisible(GetHwnd(), HITEM(item)); } void wxTreeCtrl::ScrollTo(const wxTreeItemId& item) { - if ( !TreeView_SelectSetFirstVisible(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item) ) + if ( !TreeView_SelectSetFirstVisible(GetHwnd(), HITEM(item)) ) { - wxLogLastError("TreeView_SelectSetFirstVisible"); + wxLogLastError(wxT("TreeView_SelectSetFirstVisible")); } } wxTextCtrl* wxTreeCtrl::GetEditControl() const { + // normally, we could try to do something like this to return something + // even when the editing was started by the user and not by calling + // EditLabel() - but as nobody has asked for this so far and there might be + // problems in the code below, I leave it disabled for now (VZ) +#if 0 + if ( !m_textCtrl ) + { + HWND hwndText = TreeView_GetEditControl(GetHwnd()); + if ( hwndText ) + { + m_textCtrl = new wxTextCtrl(this, -1); + m_textCtrl->Hide(); + m_textCtrl->SetHWND((WXHWND)hwndText); + } + //else: not editing label right now + } +#endif // 0 + return m_textCtrl; } @@ -778,6 +1604,14 @@ void wxTreeCtrl::DeleteTextCtrl() { if ( m_textCtrl ) { + // the HWND corresponding to this control is deleted by the tree + // control itself and we don't know when exactly this happens, so check + // if the window still exists before calling UnsubclassWin() + if ( !::IsWindow(GetHwndOf(m_textCtrl)) ) + { + m_textCtrl->SetHWND(0); + } + m_textCtrl->UnsubclassWin(); m_textCtrl->SetHWND(0); delete m_textCtrl; @@ -790,7 +1624,9 @@ wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item, { wxASSERT( textControlClass->IsKindOf(CLASSINFO(wxTextCtrl)) ); - HWND hWnd = (HWND) TreeView_EditLabel(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item); + DeleteTextCtrl(); + + HWND hWnd = (HWND) TreeView_EditLabel(GetHwnd(), HITEM(item)); // this is not an error - the TVN_BEGINLABELEDIT handler might have // returned FALSE @@ -799,8 +1635,6 @@ wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item, return NULL; } - DeleteTextCtrl(); - m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject(); m_textCtrl->SetHWND((WXHWND)hWnd); m_textCtrl->SubclassWin((WXHWND)hWnd); @@ -809,7 +1643,7 @@ wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item, } // End label editing, optionally cancelling the edit -void wxTreeCtrl::EndEditLabel(const wxTreeItemId& item, bool discardChanges) +void wxTreeCtrl::EndEditLabel(const wxTreeItemId& WXUNUSED(item), bool discardChanges) { TreeView_EndEditLabelNow(GetHwnd(), discardChanges); @@ -852,7 +1686,7 @@ bool wxTreeCtrl::GetBoundingRect(const wxTreeItemId& item, bool textOnly) const { RECT rc; - if ( TreeView_GetItemRect(GetHwnd(), (HTREEITEM)(WXHTREEITEM)item, + if ( TreeView_GetItemRect(GetHwnd(), HITEM(item), &rc, textOnly) ) { rect = wxRect(wxPoint(rc.left, rc.top), wxPoint(rc.right, rc.bottom)); @@ -875,7 +1709,7 @@ static int CALLBACK TreeView_CompareCallback(wxTreeItemData *pItem1, wxTreeCtrl *tree) { wxCHECK_MSG( pItem1 && pItem2, 0, - _T("sorting tree without data doesn't make sense") ); + wxT("sorting tree without data doesn't make sense") ); return tree->OnCompareItems(pItem1->GetId(), pItem2->GetId()); } @@ -893,12 +1727,12 @@ void wxTreeCtrl::SortChildren(const wxTreeItemId& item) // directly if we're not in derived class (much more efficient!) if ( GetClassInfo() == CLASSINFO(wxTreeCtrl) ) { - TreeView_SortChildren(GetHwnd(), (HTREEITEM)(WXHTREEITEM)item, 0); + TreeView_SortChildren(GetHwnd(), HITEM(item), 0); } else { TV_SORTCB tvSort; - tvSort.hParent = (HTREEITEM)(WXHTREEITEM)item; + tvSort.hParent = HITEM(item); tvSort.lpfnCompare = (PFNTVCOMPARE)TreeView_CompareCallback; tvSort.lParam = (LPARAM)this; TreeView_SortChildrenCB(GetHwnd(), &tvSort, 0 /* reserved */); @@ -933,6 +1767,213 @@ bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id) 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; + + 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); + + switch ( nMsg ) + { +#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE + case WM_LBUTTONDOWN: + if ( htItem && isMultiple ) + { + if ( wParam & MK_CONTROL ) + { + SetFocus(); + + // toggle selected state + ToggleItemSelection(GetHwnd(), htItem); + + ::SetFocus(GetHwnd(), htItem); + + // 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 + + if ( !m_htSelStart ) + { + // take the focused item + m_htSelStart = (WXHTREEITEM) + TreeView_GetSelection(GetHwnd()); + } + + SelectRange(GetHwnd(), HITEM(m_htSelStart), htItem, + !(wParam & MK_CONTROL)); + + ::SetFocus(GetHwnd(), htItem); + + processed = TRUE; + } + else // normal click + { + // clear the selection and then let the default handler + // do the job + UnselectAll(); + + // prevent the click from starting in-place editing + // when there was no selection in the control + TreeView_SelectItem(GetHwnd(), 0); + + // reset on any click without Shift + m_htSelStart = 0; + } + } + break; +#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE + + case WM_MOUSEMOVE: + if ( m_dragImage ) + { + m_dragImage->Move(wxPoint(x, y)); + if ( htItem ) + { + // highlight the item as target (hiding drag image is + // necessary - otherwise the display will be corrupted) + m_dragImage->Hide(); + TreeView_SelectDropTarget(GetHwnd(), htItem); + m_dragImage->Show(); + } + } + break; + + case WM_LBUTTONUP: + case WM_RBUTTONUP: + if ( m_dragImage ) + { + m_dragImage->EndDrag(); + delete m_dragImage; + m_dragImage = NULL; + + // generate the drag end event + wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, m_windowId); + + event.m_item = (WXHTREEITEM)htItem; + event.m_pointDrag = wxPoint(x, y); + event.SetEventObject(this); + + (void)GetEventHandler()->ProcessEvent(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); + } + break; + } + } +#if !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE + else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) && isMultiple ) + { + // 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++ ) + { + // TreeView_GetItemRect() will return FALSE if item is not visible, + // which may happen perfectly well + if ( TreeView_GetItemRect(GetHwnd(), HITEM(selections[n]), + &rect, TRUE) ) + { + ::InvalidateRect(GetHwnd(), &rect, FALSE); + } + } + } + else if ( nMsg == WM_KEYDOWN && isMultiple ) + { + bool bCtrl = wxIsCtrlDown(), + bShift = wxIsShiftDown(); + + // we handle.arrows and space, but not page up/down and home/end: the + // latter should be easy, but not the former + + HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd()); + if ( !m_htSelStart ) + { + m_htSelStart = (WXHTREEITEM)htSel; + } + + if ( wParam == VK_SPACE ) + { + if ( bCtrl ) + { + ToggleItemSelection(GetHwnd(), htSel); + } + else + { + UnselectAll(); + + ::SelectItem(GetHwnd(), htSel); + } + + 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 ( !htNext ) + { + // at the top/bottom + htNext = htSel; + } + + if ( bShift ) + { + SelectRange(GetHwnd(), HITEM(m_htSelStart), htNext); + } + else // bCtrl + { + // without changing selection + ::SetFocus(GetHwnd(), htNext); + } + + processed = TRUE; + } + } + } +#endif // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE + + if ( !processed ) + rc = wxControl::MSWWindowProc(nMsg, wParam, lParam); + + return rc; +} + // process WM_NOTIFY Windows message bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) { @@ -956,8 +1997,13 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) event.m_item = (WXHTREEITEM) tv->itemNew.hItem; event.m_pointDrag = wxPoint(tv->ptDrag.x, tv->ptDrag.y); - break; + + // don't allow dragging by default: the user code must + // explicitly say that it wants to allow it to avoid breaking + // the old apps + event.Veto(); } + break; case TVN_BEGINLABELEDIT: { @@ -966,17 +2012,23 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) event.m_item = (WXHTREEITEM) info->item.hItem; event.m_label = info->item.pszText; - break; } + break; case TVN_DELETEITEM: { eventType = wxEVT_COMMAND_TREE_DELETE_ITEM; NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam; - event.m_item = (WXHTREEITEM) tv->itemOld.hItem; - break; + event.m_item = (WXHTREEITEM)tv->itemOld.hItem; + + if ( m_hasAnyAttr ) + { + delete (wxTreeItemAttr *)m_attrs. + Delete((long)tv->itemOld.hItem); + } } + break; case TVN_ENDLABELEDIT: { @@ -985,6 +2037,8 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) event.m_item = (WXHTREEITEM)info->item.hItem; event.m_label = info->item.pszText; + if (info->item.pszText == NULL) + return FALSE; break; } @@ -1024,16 +2078,15 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) break; default: - wxLogDebug(_T("unexpected code %d in TVN_ITEMEXPAND " - "message"), tv->action); + wxLogDebug(wxT("unexpected code %d in TVN_ITEMEXPAND message"), tv->action); } - bool ing = (hdr->code == TVN_ITEMEXPANDING); + bool ing = ((int)hdr->code == TVN_ITEMEXPANDING); eventType = g_events[expand][ing]; event.m_item = (WXHTREEITEM) tv->itemNew.hItem; - break; } + break; case TVN_KEYDOWN: { @@ -1042,17 +2095,23 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) event.m_code = wxCharCodeMSWToWX(info->wVKey); - // a separate event for this case - if ( info->wVKey == VK_SPACE || info->wVKey == VK_RETURN ) + // a separate event for Space/Return + if ( !wxIsCtrlDown() && !wxIsShiftDown() && + ((info->wVKey == VK_SPACE) || (info->wVKey == VK_RETURN)) ) { wxTreeEvent event2(wxEVT_COMMAND_TREE_ITEM_ACTIVATED, m_windowId); event2.SetEventObject(this); + if ( !(GetWindowStyle() & wxTR_MULTIPLE) ) + { + event2.m_item = GetSelection(); + } + //else: don't know how to get it - GetEventHandler()->ProcessEvent(event2); + (void)GetEventHandler()->ProcessEvent(event2); } - break; } + break; case TVN_SELCHANGED: eventType = wxEVT_COMMAND_TREE_SEL_CHANGED; @@ -1068,8 +2127,129 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) event.m_item = (WXHTREEITEM) tv->itemNew.hItem; event.m_itemOld = (WXHTREEITEM) tv->itemOld.hItem; - break; } + break; + +#if defined(_WIN32_IE) && _WIN32_IE >= 0x300 && !wxUSE_COMCTL32_SAFELY + case NM_CUSTOMDRAW: + { + LPNMTVCUSTOMDRAW lptvcd = (LPNMTVCUSTOMDRAW)lParam; + NMCUSTOMDRAW& nmcd = lptvcd->nmcd; + switch( nmcd.dwDrawStage ) + { + case CDDS_PREPAINT: + // if we've got any items with non standard attributes, + // notify us before painting each item + *result = m_hasAnyAttr ? CDRF_NOTIFYITEMDRAW + : CDRF_DODEFAULT; + return TRUE; + + case CDDS_ITEMPREPAINT: + { + wxTreeItemAttr *attr = + (wxTreeItemAttr *)m_attrs.Get(nmcd.dwItemSpec); + + if ( !attr ) + { + // nothing to do for this item + return CDRF_DODEFAULT; + } + + HFONT hFont; + wxColour colText, colBack; + if ( attr->HasFont() ) + { + wxFont font = attr->GetFont(); + hFont = (HFONT)font.GetResourceHandle(); + } + else + { + hFont = 0; + } + + if ( attr->HasTextColour() ) + { + colText = attr->GetTextColour(); + } + else + { + colText = GetForegroundColour(); + } + + // selection colours should override ours + if ( nmcd.uItemState & CDIS_SELECTED ) + { + DWORD clrBk = ::GetSysColor(COLOR_HIGHLIGHT); + lptvcd->clrTextBk = clrBk; + + // try to make the text visible + lptvcd->clrText = wxColourToRGB(colText); + lptvcd->clrText |= ~clrBk; + lptvcd->clrText &= 0x00ffffff; + } + else + { + if ( attr->HasBackgroundColour() ) + { + colBack = attr->GetBackgroundColour(); + } + else + { + colBack = GetBackgroundColour(); + } + + 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 ) + { + ::SelectObject(nmcd.hdc, hFont); + + *result = CDRF_NEWFONT; + } + else + { + *result = CDRF_DODEFAULT; + } + + return TRUE; + } + + default: + *result = CDRF_DODEFAULT; + return TRUE; + } + } +// break; // can never be reached +#endif // _WIN32_IE >= 0x300 + + case NM_DBLCLK: + case NM_RCLICK: + { + TV_HITTESTINFO tvhti; + ::GetCursorPos(&tvhti.pt); + ::ScreenToClient(GetHwnd(), &tvhti.pt); + if ( TreeView_HitTest(GetHwnd(), &tvhti) ) + { + if ( tvhti.flags & TVHT_ONITEM ) + { + event.m_item = (WXHTREEITEM) tvhti.hItem; + eventType = (int)hdr->code == NM_DBLCLK + ? wxEVT_COMMAND_TREE_ITEM_ACTIVATED + : wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK; + + event.m_pointDrag.x = tvhti.pt.x; + event.m_pointDrag.y = tvhti.pt.y; + } + + break; + } + } + // fall through default: return wxControl::MSWOnNotify(idCtrl, lParam, result); @@ -1083,6 +2263,28 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) // 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; + break; + + case TVN_BEGINDRAG: + case TVN_BEGINRDRAG: + 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?") ); + + m_dragImage = new wxDragImage(*this, event.m_item); + m_dragImage->BeginDrag(wxPoint(0, 0), this); + m_dragImage->Show(); + } + break; + case TVN_DELETEITEM: { // NB: we might process this message using wxWindows event @@ -1090,8 +2292,26 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) // prefer to do it here ourself (otherwise deleting a tree // with many items is just too slow) NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam; - wxTreeItemData *data = (wxTreeItemData *)tv->itemOld.lParam; - delete data; // may be NULL, ok + + wxTreeItemId item = event.m_item; + if ( HasIndirectData(item) ) + { + wxTreeItemIndirectData *data = (wxTreeItemIndirectData *) + tv->itemOld.lParam; + delete data; // can't be NULL here + + m_itemsWithIndirectData.Remove(item); +#if 0 + int iIndex = m_itemsWithIndirectData.Index(item); + wxASSERT( iIndex != wxNOT_FOUND) ; + m_itemsWithIndirectData.wxBaseArray::RemoveAt((size_t)iIndex); +#endif + } + else + { + wxTreeItemData *data = (wxTreeItemData *)tv->itemOld.lParam; + delete data; // may be NULL, ok + } processed = TRUE; // Make sure we don't get called twice } @@ -1103,8 +2323,12 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) break; case TVN_ENDLABELEDIT: - // return TRUE to set the label to the new string + // 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 + // cancelling the label change *result = event.IsAllowed(); + processed = TRUE; // ensure that we don't have the text ctrl which is going to be // deleted any more @@ -1117,6 +2341,36 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) *result = !event.IsAllowed(); break; + 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 ) + { + wxTreeItemId item = event.m_item; + TV_DISPINFO *info = (TV_DISPINFO *)lParam; + if ( info->item.mask & TVIF_IMAGE ) + { + info->item.iImage = + DoGetItemImageFromData + ( + item, + IsExpanded(item) ? wxTreeItemIcon_Expanded + : wxTreeItemIcon_Normal + ); + } + if ( info->item.mask & TVIF_SELECTEDIMAGE ) + { + info->item.iSelectedImage = + DoGetItemImageFromData + ( + item, + IsExpanded(item) ? wxTreeItemIcon_SelectedExpanded + : wxTreeItemIcon_Selected + ); + } + } + break; + //default: // for the other messages the return value is ignored and there is // nothing special to do @@ -1125,18 +2379,5 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) return processed; } -// ---------------------------------------------------------------------------- -// Tree event -// ---------------------------------------------------------------------------- - -IMPLEMENT_DYNAMIC_CLASS(wxTreeEvent, wxNotifyEvent) - -wxTreeEvent::wxTreeEvent(wxEventType commandType, int id) - : wxNotifyEvent(commandType, id) -{ - m_code = 0; - m_itemOld = 0; -} - #endif // __WIN95__