X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5aeeab14541cbf984b7be8363c5d702a7a821797..00c813596e3eefdd028365acf9542355937e5531:/src/msw/treectrl.cpp diff --git a/src/msw/treectrl.cpp b/src/msw/treectrl.cpp index ff98a5db03..f6dab4428b 100644 --- a/src/msw/treectrl.cpp +++ b/src/msw/treectrl.cpp @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: treectrl.cpp +// Name: src/msw/treectrl.cpp // Purpose: wxTreeCtrl // Author: Julian Smart // Modified by: Vadim Zeitlin to be less MSW-specific on 10.10.98 @@ -16,6 +16,7 @@ // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- + #ifdef __GNUG__ #pragma implementation "treectrl.h" #endif @@ -27,9 +28,14 @@ #pragma hdrstop #endif -#include "wx/window.h" +#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 + // Mingw32 is a bit mental even though this is done in winundef #ifdef GetFirstChild #undef GetFirstChild @@ -44,15 +50,15 @@ #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__ -#ifndef wxUSE_NORLANDER_HEADERS -#include "wx/msw/gnuwin32/extra.h" -#endif +#ifdef __GNUWIN32_OLD__ + #include "wx/msw/gnuwin32/extra.h" #endif -#if (defined(__WIN95__) && !defined(__GNUWIN32__)) || defined(__TWIN32__) || defined(wxUSE_NORLANDER_HEADERS) +#if defined(__WIN95__) && !((defined(__GNUWIN32_OLD__) || defined(__TWIN32__)) && !defined(__CYGWIN10__)) #include #endif @@ -61,12 +67,220 @@ #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 -#pragma warning( disable : 4097 ) +#ifdef __VISUALC__ +#pragma warning( disable : 4097 ) // inheriting from typedef +#endif + struct wxTreeViewItem : public TV_ITEM { wxTreeViewItem(const wxTreeItemId& item, // the item handle @@ -76,10 +290,13 @@ struct wxTreeViewItem : public TV_ITEM // 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 @@ -109,20 +326,134 @@ private: 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 } @@ -171,7 +502,19 @@ 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, @@ -188,8 +531,13 @@ bool wxTreeCtrl::Create(wxWindow *parent, return FALSE; DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP | - TVS_HASLINES | TVS_SHOWSELALWAYS; + TVS_SHOWSELALWAYS; + + if ( m_windowStyle & wxCLIP_SIBLINGS ) + wstyle |= WS_CLIPSIBLINGS; + if ((m_windowStyle & wxTR_NO_LINES) == 0) + wstyle |= TVS_HASLINES; if ( m_windowStyle & wxTR_HAS_BUTTONS ) wstyle |= TVS_HASBUTTONS; @@ -199,21 +547,40 @@ bool wxTreeCtrl::Create(wxWindow *parent, if ( m_windowStyle & wxTR_LINES_AT_ROOT ) wstyle |= TVS_LINESATROOT; -#if !defined( __GNUWIN32__ ) && !defined( __BORLANDC__ ) && !defined(wxUSE_NORLANDER_HEADERS) + // 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 !defined(__VISUALC__) || (__VISUALC__ != 1010) if ( m_windowStyle & wxTR_MULTIPLE ) wstyle |= TVS_CHECKBOXES; -#endif -#endif +#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE // Create the tree control. 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 @@ -243,7 +610,7 @@ bool wxTreeCtrl::Create(wxWindow *parent, DFC_BUTTON, DFCS_BUTTONCHECK | DFCS_CHECKED) ) { - wxLogLastError(_T("DrawFrameControl(check)")); + wxLogLastError(wxT("DrawFrameControl(check)")); } bmp.SetHBITMAP((WXHBITMAP)hbmpCheck); @@ -253,7 +620,7 @@ bool wxTreeCtrl::Create(wxWindow *parent, DFC_BUTTON, DFCS_BUTTONCHECK) ) { - wxLogLastError(_T("DrawFrameControl(uncheck)")); + wxLogLastError(wxT("DrawFrameControl(uncheck)")); } bmp.SetHBITMAP((WXHBITMAP)hbmpCheck); @@ -274,10 +641,25 @@ bool wxTreeCtrl::Create(wxWindow *parent, 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; } // ---------------------------------------------------------------------------- @@ -290,7 +672,7 @@ bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const { if ( !TreeView_GetItem(GetHwnd(), tvItem) ) { - wxLogLastError("TreeView_GetItem"); + wxLogLastError(wxT("TreeView_GetItem")); return FALSE; } @@ -302,7 +684,7 @@ void wxTreeCtrl::DoSetItem(wxTreeViewItem* tvItem) { if ( TreeView_SetItem(GetHwnd(), tvItem) == -1 ) { - wxLogLastError("TreeView_SetItem"); + wxLogLastError(wxT("TreeView_SetItem")); } } @@ -341,49 +723,64 @@ 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; } -// internal class for counting tree items +void wxTreeCtrl::AssignImageList(wxImageList *imageList) +{ + SetImageList(imageList); + m_ownsImageListNormal = TRUE; +} -class TraverseCounter : public wxTreeTraversal +void wxTreeCtrl::AssignStateImageList(wxImageList *imageList) { -public: - TraverseCounter(const wxTreeCtrl *tree, - const wxTreeItemId& root, - bool recursively) - : wxTreeTraversal(tree) - { - m_count = 0; + SetStateImageList(imageList); + m_ownsImageListState = TRUE; +} - DoTraverse(root, recursively); - } +size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item, + bool recursively) const +{ + TraverseCounter counter(this, item, recursively); - virtual bool OnVisit(const wxTreeItemId& item) - { - m_count++; + return counter.GetCount() - 1; +} - return TRUE; - } +// ---------------------------------------------------------------------------- +// control colours +// ---------------------------------------------------------------------------- - size_t GetCount() const { return m_count; } +bool wxTreeCtrl::SetBackgroundColour(const wxColour &colour) +{ +#if !wxUSE_COMCTL32_SAFELY + if ( !wxWindowBase::SetBackgroundColour(colour) ) + return FALSE; -private: - size_t m_count; -}; + SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0, colour.GetPixel()); +#endif + return TRUE; +} -size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item, - bool recursively) const +bool wxTreeCtrl::SetForegroundColour(const wxColour &colour) { - TraverseCounter counter(this, item, recursively); +#if !wxUSE_COMCTL32_SAFELY + if ( !wxWindowBase::SetForegroundColour(colour) ) + return FALSE; + + SendMessage(GetHwnd(), TVM_SETTEXTCOLOR, 0, colour.GetPixel()); +#endif - return counter.GetCount(); + return TRUE; } // ---------------------------------------------------------------------------- @@ -400,7 +797,7 @@ 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); @@ -413,6 +810,46 @@ void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text) DoSetItem(&tvItem); } +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) @@ -423,36 +860,90 @@ void wxTreeCtrl::DoSetItemImages(const wxTreeItemId& item, DoSetItem(&tvItem); } -int wxTreeCtrl::GetItemImage(const wxTreeItemId& item) const +int wxTreeCtrl::GetItemImage(const wxTreeItemId& item, + wxTreeItemIcon which) const { - wxTreeViewItem tvItem(item, TVIF_IMAGE); - DoGetItem(&tvItem); + if ( HasIndirectData(item) ) + { + return DoGetItemImageFromData(item, which); + } - return tvItem.iImage; -} + UINT mask; + switch ( which ) + { + default: + wxFAIL_MSG( wxT("unknown tree item image type") ); -void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image) -{ - // 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, image, GetItemSelectedImage(item)); -} + case wxTreeItemIcon_Normal: + mask = TVIF_IMAGE; + break; -int wxTreeCtrl::GetItemSelectedImage(const wxTreeItemId& item) const -{ - wxTreeViewItem tvItem(item, TVIF_SELECTEDIMAGE); + 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::SetItemSelectedImage(const wxTreeItemId& item, int image) +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; + } + // 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, GetItemImage(item), image); + DoSetItemImages(item, imageNormal, imageSel); } wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const @@ -463,14 +954,61 @@ 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) @@ -494,6 +1032,56 @@ 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); + Refresh(); +} + +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); + Refresh(); +} + +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); + Refresh(); +} + // ---------------------------------------------------------------------------- // Item status // ---------------------------------------------------------------------------- @@ -502,6 +1090,12 @@ 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; } @@ -552,22 +1146,22 @@ wxTreeItemId wxTreeCtrl::GetRootItem() const wxTreeItemId wxTreeCtrl::GetSelection() const { - wxCHECK_MSG( !(m_windowStyle & wxTR_MULTIPLE), (WXHTREEITEM)0, - _T("this only works with single selection controls") ); + 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); } @@ -576,7 +1170,7 @@ 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; @@ -600,12 +1194,12 @@ 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 @@ -615,18 +1209,16 @@ 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(), (HTREEITEM) (WXHTREEITEM) item)); + return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevVisible(GetHwnd(), HITEM(item))); } // ---------------------------------------------------------------------------- @@ -654,39 +1246,11 @@ void wxTreeCtrl::SetItemCheck(const wxTreeItemId& item, bool check) DoSetItem(&tvItem); } -// internal class for getting the selected - -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 ( GetTree()->IsItemChecked(item) ) - { - m_selections.Add(item); - } - - return TRUE; - } - -private: - wxArrayTreeItemIds& m_selections; -}; - size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds& selections) const { TraverseSelections selector(this, selections); - return selections.GetCount(); + return selector.GetCount(); } // ---------------------------------------------------------------------------- @@ -699,12 +1263,17 @@ 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; } @@ -715,6 +1284,11 @@ 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 ) { @@ -745,7 +1319,7 @@ 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 ) @@ -771,7 +1345,7 @@ 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); } @@ -793,6 +1367,30 @@ 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, @@ -804,9 +1402,9 @@ 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")); } } @@ -829,7 +1427,7 @@ void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item) { if ( !TreeView_DeleteItem(GetHwnd(), (HTREEITEM)children[n]) ) { - wxLogLastError("TreeView_DeleteItem"); + wxLogLastError(wxT("TreeView_DeleteItem")); } } } @@ -838,7 +1436,7 @@ void wxTreeCtrl::DeleteAllItems() { if ( !TreeView_DeleteAllItems(GetHwnd()) ) { - wxLogLastError("TreeView_DeleteAllItems"); + wxLogLastError(wxT("TreeView_DeleteAllItems")); } } @@ -848,7 +1446,7 @@ 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 @@ -862,7 +1460,7 @@ 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; @@ -908,10 +1506,11 @@ void wxTreeCtrl::ExpandItem(const wxTreeItemId& item, int action) void wxTreeCtrl::Unselect() { - wxASSERT_MSG( !(m_windowStyle & wxTR_MULTIPLE), _T("doesn't make sense") ); + wxASSERT_MSG( !(m_windowStyle & wxTR_MULTIPLE), + wxT("doesn't make sense, may be you want UnselectAll()?") ); // just remove the selection - SelectItem(wxTreeItemId((WXHTREEITEM) 0)); + SelectItem(wxTreeItemId((long) (WXHTREEITEM) 0)); } void wxTreeCtrl::UnselectAll() @@ -922,7 +1521,11 @@ void wxTreeCtrl::UnselectAll() size_t count = GetSelections(selections); for ( size_t n = 0; n < count; n++ ) { +#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 @@ -936,8 +1539,12 @@ 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 { @@ -952,9 +1559,9 @@ void wxTreeCtrl::SelectItem(const wxTreeItemId& item) event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGING); if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() ) { - if ( !TreeView_SelectItem(GetHwnd(), (HTREEITEM) (WXHTREEITEM) item) ) + if ( !TreeView_SelectItem(GetHwnd(), HITEM(item)) ) { - wxLogLastError("TreeView_SelectItem"); + wxLogLastError(wxT("TreeView_SelectItem")); } else { @@ -969,19 +1576,37 @@ void wxTreeCtrl::SelectItem(const wxTreeItemId& item) 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; } @@ -989,6 +1614,14 @@ 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; @@ -1001,7 +1634,9 @@ 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 @@ -1010,9 +1645,8 @@ wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item, return NULL; } - DeleteTextCtrl(); - m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject(); + m_textCtrl->SetParent(this); m_textCtrl->SetHWND((WXHWND)hWnd); m_textCtrl->SubclassWin((WXHWND)hWnd); @@ -1020,7 +1654,7 @@ 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); @@ -1063,7 +1697,7 @@ 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)); @@ -1086,7 +1720,7 @@ 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()); } @@ -1104,12 +1738,12 @@ 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 */); @@ -1144,6 +1778,213 @@ 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) { @@ -1167,8 +2008,13 @@ 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: { @@ -1177,17 +2023,23 @@ 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: { @@ -1196,6 +2048,8 @@ 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; } @@ -1216,9 +2070,6 @@ bool wxTreeCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result) } case TVN_ITEMEXPANDING: - event.m_code = FALSE; - // fall through - case TVN_ITEMEXPANDED: { NM_TREEVIEW* tv = (NM_TREEVIEW*)lParam; @@ -1235,35 +2086,46 @@ 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: { eventType = wxEVT_COMMAND_TREE_KEY_DOWN; TV_KEYDOWN *info = (TV_KEYDOWN *)lParam; - event.m_code = wxCharCodeMSWToWX(info->wVKey); - - // a separate event for this case - if ( info->wVKey == VK_SPACE || info->wVKey == VK_RETURN ) + // we pass 0 as last CreateKeyEvent() parameter because we + // don't have access to the real key press flags here - but as + // it is only used to determin wxKeyEvent::m_altDown flag it's + // not too bad + event.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN, + wxCharCodeMSWToWX(info->wVKey), + 0); + + // 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; @@ -1279,8 +2141,130 @@ 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 && !( defined(__GNUWIN32__) && !wxCHECK_W32API_VERSION( 1, 0 ) ) + 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; + break; + + case CDDS_ITEMPREPAINT: + { + wxTreeItemAttr *attr = + (wxTreeItemAttr *)m_attrs.Get(nmcd.dwItemSpec); + + if ( !attr ) + { + // nothing to do for this item + *result = CDRF_DODEFAULT; + break; + } + + 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; + } + } + break; + + default: + *result = CDRF_DODEFAULT; + } + } + + // we always process it + return TRUE; +#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); @@ -1294,6 +2278,28 @@ 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 @@ -1301,8 +2307,26 @@ 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 } @@ -1314,8 +2338,12 @@ 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 @@ -1328,6 +2356,36 @@ 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 @@ -1336,18 +2394,6 @@ 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__ +#endif // wxUSE_TREECTRL