X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/2bda0e173844e8e0f8acf4e8ad8b5c26e5c6fe5d..9f39393d9efe16244c8d213076582dfd996cb129:/src/msw/treectrl.cpp?ds=sidebyside diff --git a/src/msw/treectrl.cpp b/src/msw/treectrl.cpp index 647180b317..5e20b78bb5 100644 --- a/src/msw/treectrl.cpp +++ b/src/msw/treectrl.cpp @@ -1,927 +1,2396 @@ -/* - * File: TreeCtrl.cpp - * Purpose: Tree control - * Author: Julian Smart - * Created: 1997 - * Updated: - * Copyright: - */ - -/* static const char sccsid[] = "%W% %G%"; */ +///////////////////////////////////////////////////////////////////////////// +// Name: src/msw/treectrl.cpp +// Purpose: wxTreeCtrl +// Author: Julian Smart +// Modified by: Vadim Zeitlin to be less MSW-specific on 10.10.98 +// Created: 1997 +// RCS-ID: $Id$ +// Copyright: (c) Julian Smart +// Licence: wxWindows licence +///////////////////////////////////////////////////////////////////////////// + +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- #ifdef __GNUG__ -#pragma implementation "treectrl.h" + #pragma implementation "treectrl.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif -#ifndef WX_PRECOMP -#include "wx.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 #endif -#include "wx/log.h" +#ifdef GetNextSibling + #undef GetNextSibling +#endif #if defined(__WIN95__) -#include "wx/treectrl.h" -#include "wx/msw/private.h" +#include "wx/log.h" +#include "wx/dynarray.h" +#include "wx/imaglist.h" +#include "wx/settings.h" +#include "wx/msw/treectrl.h" +#include "wx/msw/dragimag.h" + +#ifdef __GNUWIN32_OLD__ + #include "wx/msw/gnuwin32/extra.h" +#endif -#ifndef __GNUWIN32__ -#include +#if defined(__WIN95__) && !((defined(__GNUWIN32_OLD__) || defined(__TWIN32__)) && !defined(__CYGWIN10__)) + #include #endif // Bug in headers, sometimes #ifndef TVIS_FOCUSED -#define TVIS_FOCUSED 0x0001 + #define TVIS_FOCUSED 0x0001 #endif -static void wxConvertToMSWTreeItem(wxTreeItem& info, TV_ITEM& tvItem); -static void wxConvertFromMSWTreeItem(wxTreeItem& info, TV_ITEM& tvItem, HWND getFullInfo = 0); +#ifndef TV_FIRST + #define TV_FIRST 0x1100 +#endif -#if !USE_SHARED_LIBRARY -IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxControl) -IMPLEMENT_DYNAMIC_CLASS(wxTreeItem, wxObject) +#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 -wxTreeCtrl::wxTreeCtrl(void) +// 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) { - m_imageListNormal = NULL; - m_imageListState = NULL; + 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")); + } } -bool wxTreeCtrl::Create(wxWindow *parent, const wxWindowID id, const wxPoint& pos, const wxSize& size, - const long style, const wxValidator& validator, const wxString& name) +static inline void UnselectItem(HWND hwndTV, HTREEITEM htItem) { - wxSystemSettings settings; - SetBackgroundColour(settings.GetSystemColour(wxSYS_COLOUR_WINDOW)); - SetForegroundColour(parent->GetDefaultForegroundColour()); + SelectItem(hwndTV, htItem, FALSE); +} - SetName(name); - SetValidator(validator); +static inline void ToggleItemSelection(HWND hwndTV, HTREEITEM htItem) +{ + SelectItem(hwndTV, htItem, !IsItemSelected(hwndTV, htItem)); +} - m_imageListNormal = NULL; - m_imageListState = NULL; +// 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); + } - int x = pos.x; - int y = pos.y; - int width = size.x; - int height = size.y; + // select the items in range + cont = htFirst != htLast; + while ( htItem && cont ) + { + if ( !IsItemSelected(hwndTV, htItem) ) + { + SelectItem(hwndTV, htItem); + } - m_windowStyle = style; + cont = (htItem != htFirst) && (htItem != htLast); -// SetFont(wxTheFontList->FindOrCreateFont(11, wxSWISS, wxNORMAL, wxNORMAL)); + htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem); + } - SetParent(parent); + // unselect the rest + if ( unselectOthers ) + { + while ( htItem ) + { + if ( IsItemSelected(hwndTV, htItem) ) + { + UnselectItem(hwndTV, htItem); + } + + htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem); + } + } - if (width <= 0) - width = 100; - if (height <= 0) - height = 30; - if (x < 0) - x = 0; - if (y < 0) - y = 0; + // seems to be necessary - otherwise the just selected items don't always + // appear as selected + UpdateWindow(hwndTV); +} - m_windowId = (id == -1) ? NewControlId() : id; +// 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); - DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP | TVS_HASLINES | TVS_LINESATROOT; - - bool want3D; - WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D) ; + 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 + } +} - // Even with extended styles, need to combine with WS_BORDER - // for them to look right. - if (want3D || (m_windowStyle & wxSIMPLE_BORDER) || (m_windowStyle & wxRAISED_BORDER) || - (m_windowStyle & wxSUNKEN_BORDER) || (m_windowStyle & wxDOUBLE_BORDER)) - wstyle |= WS_BORDER; +#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE - if ( m_windowStyle & wxTR_HAS_BUTTONS ) - wstyle |= TVS_HASBUTTONS; +// ---------------------------------------------------------------------------- +// private classes +// ---------------------------------------------------------------------------- - if ( m_windowStyle & wxTR_EDIT_LABELS ) - wstyle |= TVS_EDITLABELS; +// a convenient wrapper around TV_ITEM struct which adds a ctor +#ifdef __VISUALC__ +#pragma warning( disable : 4097 ) // inheriting from typedef +#endif - // Create the toolbar control. - HWND hWndTreeControl = CreateWindowEx(exStyle, - WC_TREEVIEW, - "", - wstyle, - x, y, width, height, - (HWND) parent->GetHWND(), - (HMENU)m_windowId, - wxGetInstance(), - NULL ); +struct wxTreeViewItem : public TV_ITEM +{ + wxTreeViewItem(const wxTreeItemId& item, // the item handle + UINT mask_, // fields which are valid + UINT stateMask_ = 0) // for TVIF_STATE only + { + // hItem member is always valid + mask = mask_ | TVIF_HANDLE; + stateMask = stateMask_; + hItem = HITEM(item); + } +}; - m_hWnd = (WXHWND) hWndTreeControl; - if (parent) parent->AddChild(this); - - SubclassWin((WXHWND) m_hWnd); +#ifdef __VISUALC__ +#pragma warning( default : 4097 ) +#endif - return TRUE; +// 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; +}; + +// ---------------------------------------------------------------------------- +// 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. +// ---------------------------------------------------------------------------- + +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 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 } +}; + +// ============================================================================ +// implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// tree traversal +// ---------------------------------------------------------------------------- + +bool wxTreeTraversal::DoTraverse(const wxTreeItemId& root, bool recursively) +{ + if ( !OnVisit(root) ) + return FALSE; + + return Traverse(root, recursively); } -wxTreeCtrl::~wxTreeCtrl(void) +bool wxTreeTraversal::Traverse(const wxTreeItemId& root, bool recursively) { - m_textCtrl.SetHWND((WXHWND) NULL); + 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; } -// Attributes -int wxTreeCtrl::GetCount(void) const +// ---------------------------------------------------------------------------- +// construction and destruction +// ---------------------------------------------------------------------------- + +void wxTreeCtrl::Init() { - return (int) TreeView_GetCount((HWND) GetHWND()); + 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; } -int wxTreeCtrl::GetIndent(void) const +bool wxTreeCtrl::Create(wxWindow *parent, + wxWindowID id, + const wxPoint& pos, + const wxSize& size, + long style, + const wxValidator& validator, + const wxString& name) { - return (int) TreeView_GetIndent((HWND) GetHWND()); + Init(); + + if ( !CreateControl(parent, id, pos, size, style, validator, name) ) + return FALSE; + + DWORD wstyle = WS_VISIBLE | WS_CHILD | WS_TABSTOP | + 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; + + if ( m_windowStyle & wxTR_EDIT_LABELS ) + wstyle |= TVS_EDITLABELS; + + 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. + 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; } -void wxTreeCtrl::SetIndent(int indent) +wxTreeCtrl::~wxTreeCtrl() { - TreeView_SetIndent((HWND) GetHWND(), indent); + // 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; } -wxImageList *wxTreeCtrl::GetImageList(const int which) const +// ---------------------------------------------------------------------------- +// accessors +// ---------------------------------------------------------------------------- + +// simple wrappers which add error checking in debug mode + +bool wxTreeCtrl::DoGetItem(wxTreeViewItem* tvItem) const { - if ( which == wxIMAGE_LIST_NORMAL ) + if ( !TreeView_GetItem(GetHwnd(), tvItem) ) { + wxLogLastError(wxT("TreeView_GetItem")); + + return FALSE; + } + + return TRUE; +} + +void wxTreeCtrl::DoSetItem(wxTreeViewItem* tvItem) +{ + if ( TreeView_SetItem(GetHwnd(), tvItem) == -1 ) + { + wxLogLastError(wxT("TreeView_SetItem")); + } +} + +size_t wxTreeCtrl::GetCount() const +{ + return (size_t)TreeView_GetCount(GetHwnd()); +} + +unsigned int wxTreeCtrl::GetIndent() const +{ + return TreeView_GetIndent(GetHwnd()); +} + +void wxTreeCtrl::SetIndent(unsigned int indent) +{ + TreeView_SetIndent(GetHwnd(), indent); +} + +wxImageList *wxTreeCtrl::GetImageList() const +{ return m_imageListNormal; - } - else if ( which == wxIMAGE_LIST_STATE ) +} + +wxImageList *wxTreeCtrl::GetStateImageList() const +{ + return m_imageListNormal; +} + +void wxTreeCtrl::SetAnyImageList(wxImageList *imageList, int which) +{ + // no error return + TreeView_SetImageList(GetHwnd(), + imageList ? imageList->GetHIMAGELIST() : 0, + which); +} + +void 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; +} + +void wxTreeCtrl::AssignImageList(wxImageList *imageList) +{ + SetImageList(imageList); + m_ownsImageListNormal = TRUE; +} + +void wxTreeCtrl::AssignStateImageList(wxImageList *imageList) +{ + SetStateImageList(imageList); + m_ownsImageListState = TRUE; +} + +size_t wxTreeCtrl::GetChildrenCount(const wxTreeItemId& item, + bool recursively) const +{ + TraverseCounter counter(this, item, recursively); + + return counter.GetCount() - 1; +} + +// ---------------------------------------------------------------------------- +// 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; +} + +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; +} + +// ---------------------------------------------------------------------------- +// Item access +// ---------------------------------------------------------------------------- + +wxString wxTreeCtrl::GetItemText(const wxTreeItemId& item) const +{ + wxChar buf[512]; // the size is arbitrary... + + wxTreeViewItem tvItem(item, TVIF_TEXT); + tvItem.pszText = buf; + tvItem.cchTextMax = WXSIZEOF(buf); + if ( !DoGetItem(&tvItem) ) { - return m_imageListState; - } - return NULL; + // don't return some garbage which was on stack, but an empty string + buf[0] = wxT('\0'); + } + + return wxString(buf); } -void wxTreeCtrl::SetImageList(wxImageList *imageList, const int which) +void wxTreeCtrl::SetItemText(const wxTreeItemId& item, const wxString& text) { - int flags = 0; - if ( which == wxIMAGE_LIST_NORMAL ) + wxTreeViewItem tvItem(item, TVIF_TEXT); + tvItem.pszText = (wxChar *)text.c_str(); // conversion is ok + DoSetItem(&tvItem); +} + +int wxTreeCtrl::DoGetItemImageFromData(const wxTreeItemId& item, + wxTreeItemIcon which) const +{ + wxTreeViewItem tvItem(item, TVIF_PARAM); + if ( !DoGetItem(&tvItem) ) { - flags = TVSIL_NORMAL; - m_imageListNormal = imageList; - } - else if ( which == wxIMAGE_LIST_STATE ) + 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) ) { - flags = TVSIL_STATE; - m_imageListState = imageList; - } - TreeView_SetImageList((HWND) GetHWND(), (HIMAGELIST) imageList ? imageList->GetHIMAGELIST() : 0, flags); + 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); } -long wxTreeCtrl::GetNextItem(const long item, int code) const +int wxTreeCtrl::GetItemImage(const wxTreeItemId& item, + wxTreeItemIcon which) const { - UINT flag = 0; - switch ( code ) - { - case wxTREE_NEXT_CARET: - flag = TVGN_CARET; - break; - case wxTREE_NEXT_CHILD: - flag = TVGN_CHILD; - break; - case wxTREE_NEXT_DROPHILITE: - flag = TVGN_DROPHILITE; - break; - case wxTREE_NEXT_FIRSTVISIBLE: - flag = TVGN_FIRSTVISIBLE; - break; - case wxTREE_NEXT_NEXT: - flag = TVGN_NEXT; - break; - case wxTREE_NEXT_NEXTVISIBLE: - flag = TVGN_NEXTVISIBLE; - break; - case wxTREE_NEXT_PARENT: - flag = TVGN_PARENT; - break; - case wxTREE_NEXT_PREVIOUS: - flag = TVGN_PREVIOUS; - break; - case wxTREE_NEXT_PREVIOUSVISIBLE: - flag = TVGN_PREVIOUSVISIBLE; - break; - case wxTREE_NEXT_ROOT: - flag = TVGN_ROOT; - break; + 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; - default : - break; - } - return (long) TreeView_GetNextItem( (HWND) GetHWND(), (HTREEITEM) item, flag); + case wxTreeItemIcon_Expanded: + case wxTreeItemIcon_SelectedExpanded: + return -1; + } + + wxTreeViewItem tvItem(item, mask); + DoGetItem(&tvItem); + + return mask == TVIF_IMAGE ? tvItem.iImage : tvItem.iSelectedImage; } -bool wxTreeCtrl::ItemHasChildren(const long item) const +void wxTreeCtrl::SetItemImage(const wxTreeItemId& item, int image, + wxTreeItemIcon which) { - TV_ITEM item2; - item2.hItem = (HTREEITEM) item; - item2.mask = TVIF_CHILDREN; - TreeView_GetItem((HWND) GetHWND(), &item2); - return (item2.cChildren != 0); + 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, imageNormal, imageSel); } -long wxTreeCtrl::GetChild(const long item) const +wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const { - return (long) ::SendMessage((HWND) GetHWND(), TVM_GETNEXTITEM, TVGN_CHILD, (LPARAM)item); + wxTreeViewItem tvItem(item, TVIF_PARAM); + if ( !DoGetItem(&tvItem) ) + { + return NULL; + } + + if ( HasIndirectData(item) ) + { + return ((wxTreeItemIndirectData *)tvItem.lParam)->GetData(); + } + else + { + return (wxTreeItemData *)tvItem.lParam; + } } -long wxTreeCtrl::GetParent(const long item) const +void wxTreeCtrl::SetItemData(const wxTreeItemId& item, wxTreeItemData *data) { - return (long) ::SendMessage((HWND) GetHWND(), TVM_GETNEXTITEM, TVGN_PARENT, (LPARAM)item); + // first, associate this piece of data with this item + if ( data ) + { + data->SetId(item); + } + + wxTreeViewItem tvItem(item, TVIF_PARAM); + + if ( HasIndirectData(item) ) + { + if ( DoGetItem(&tvItem) ) + { + ((wxTreeItemIndirectData *)tvItem.lParam)->SetData(data); + } + else + { + wxFAIL_MSG( wxT("failed to change tree items data") ); + } + } + else + { + tvItem.lParam = (LPARAM)data; + DoSetItem(&tvItem); + } } -long wxTreeCtrl::GetFirstVisibleItem(void) const +void wxTreeCtrl::SetIndirectItemData(const wxTreeItemId& item, + wxTreeItemIndirectData *data) { - return (long) ::SendMessage((HWND) GetHWND(), TVM_GETNEXTITEM, TVGN_FIRSTVISIBLE, 0); + // 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); } -long wxTreeCtrl::GetNextVisibleItem(const long item) const +bool wxTreeCtrl::HasIndirectData(const wxTreeItemId& item) const { - return (long) ::SendMessage((HWND) GetHWND(), TVM_GETNEXTITEM, TVGN_NEXTVISIBLE, (LPARAM)item); + return m_itemsWithIndirectData.Index(item) != wxNOT_FOUND; } -long wxTreeCtrl::GetSelection(void) const +void wxTreeCtrl::SetItemHasChildren(const wxTreeItemId& item, bool has) { - return (long) ::SendMessage((HWND) GetHWND(), TVM_GETNEXTITEM, TVGN_CARET, 0); + wxTreeViewItem tvItem(item, TVIF_CHILDREN); + tvItem.cChildren = (int)has; + DoSetItem(&tvItem); } -long wxTreeCtrl::GetRootItem(void) const +void wxTreeCtrl::SetItemBold(const wxTreeItemId& item, bool bold) { - return (long) ::SendMessage((HWND) GetHWND(), TVM_GETNEXTITEM, TVGN_ROOT, 0); + wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD); + tvItem.state = bold ? TVIS_BOLD : 0; + DoSetItem(&tvItem); } -// TODO: convert mask -bool wxTreeCtrl::GetItem(wxTreeItem& info) const +void wxTreeCtrl::SetItemDropHighlight(const wxTreeItemId& item, bool highlight) { - TV_ITEM tvItem; - tvItem.hItem = (HTREEITEM)info.m_itemId; - tvItem.pszText = NULL; - tvItem.mask = 0; - if ( info.m_mask & wxTREE_MASK_TEXT ) - { - tvItem.mask |= TVIF_TEXT; - tvItem.pszText = new char[513]; - tvItem.cchTextMax = 512; - } - if ( info.m_mask & wxTREE_MASK_DATA ) - tvItem.mask |= TVIF_PARAM; + wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_DROPHILITED); + tvItem.state = highlight ? TVIS_DROPHILITED : 0; + DoSetItem(&tvItem); +} - bool success = TreeView_GetItem((HWND)GetHWND(), &tvItem) != 0; +void wxTreeCtrl::SetItemTextColour(const wxTreeItemId& item, + const wxColour& col) +{ + m_hasAnyAttr = TRUE; - if ( !success ) - { - wxLogSysError("TreeView_GetItem failed"); + long id = (long)(WXHTREEITEM)item; + wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id); + if ( !attr ) + { + attr = new wxTreeItemAttr; + m_attrs.Put(id, (wxObject *)attr); + } - if (tvItem.pszText) - delete[] tvItem.pszText; + attr->SetTextColour(col); + Refresh(); +} + +void wxTreeCtrl::SetItemBackgroundColour(const wxTreeItemId& item, + const wxColour& col) +{ + m_hasAnyAttr = TRUE; - return FALSE; - } + 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(); +} - wxConvertFromMSWTreeItem(info, tvItem); +void wxTreeCtrl::SetItemFont(const wxTreeItemId& item, const wxFont& font) +{ + m_hasAnyAttr = TRUE; - if (tvItem.pszText) - delete[] tvItem.pszText; + long id = (long)(WXHTREEITEM)item; + wxTreeItemAttr *attr = (wxTreeItemAttr *)m_attrs.Get(id); + if ( !attr ) + { + attr = new wxTreeItemAttr; + m_attrs.Put(id, (wxObject *)attr); + } - return success; + attr->SetFont(font); + Refresh(); } -bool wxTreeCtrl::SetItem(wxTreeItem& info) +// ---------------------------------------------------------------------------- +// Item status +// ---------------------------------------------------------------------------- + +bool wxTreeCtrl::IsVisible(const wxTreeItemId& item) const { - TV_ITEM item; - wxConvertToMSWTreeItem(info, item); - return (::SendMessage((HWND) GetHWND(), TVM_SETITEM, 0, (LPARAM)&item) != 0); + // 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; + } -int wxTreeCtrl::GetItemState(const long item, const long stateMask) const +bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const { - wxTreeItem info; + wxTreeViewItem tvItem(item, TVIF_CHILDREN); + DoGetItem(&tvItem); - info.m_mask = wxTREE_MASK_STATE ; - info.m_stateMask = stateMask; - info.m_itemId = item; + return tvItem.cChildren != 0; +} + +bool wxTreeCtrl::IsExpanded(const wxTreeItemId& item) const +{ + // probably not a good idea to put it here + //wxASSERT( ItemHasChildren(item) ); + + wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_EXPANDED); + DoGetItem(&tvItem); - if (!GetItem(info)) - return 0; + return (tvItem.state & TVIS_EXPANDED) != 0; +} + +bool wxTreeCtrl::IsSelected(const wxTreeItemId& item) const +{ + wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_SELECTED); + DoGetItem(&tvItem); - return info.m_state; + return (tvItem.state & TVIS_SELECTED) != 0; } -bool wxTreeCtrl::SetItemState(const long item, const long state, const long stateMask) +bool wxTreeCtrl::IsBold(const wxTreeItemId& item) const { - wxTreeItem info; + wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_BOLD); + DoGetItem(&tvItem); - info.m_mask = wxTREE_MASK_STATE ; - info.m_state = state; - info.m_stateMask = stateMask; - info.m_itemId = item; + return (tvItem.state & TVIS_BOLD) != 0; +} + +// ---------------------------------------------------------------------------- +// navigation +// ---------------------------------------------------------------------------- - return SetItem(info); +wxTreeItemId wxTreeCtrl::GetRootItem() const +{ + return wxTreeItemId((WXHTREEITEM) TreeView_GetRoot(GetHwnd())); } -bool wxTreeCtrl::SetItemImage(const long item, const int image, const int selImage) +wxTreeItemId wxTreeCtrl::GetSelection() const { - wxTreeItem info; + wxCHECK_MSG( !(m_windowStyle & wxTR_MULTIPLE), (long)(WXHTREEITEM)0, + wxT("this only works with single selection controls") ); - info.m_mask = wxTREE_MASK_IMAGE ; - info.m_image = image; - if ( selImage > -1) - { - info.m_selectedImage = selImage; - info.m_mask |= wxTREE_MASK_SELECTED_IMAGE; - } - info.m_itemId = item; + return wxTreeItemId((WXHTREEITEM) TreeView_GetSelection(GetHwnd())); +} - return SetItem(info); +wxTreeItemId wxTreeCtrl::GetParent(const wxTreeItemId& item) const +{ + return wxTreeItemId((WXHTREEITEM) TreeView_GetParent(GetHwnd(), HITEM(item))); } -wxString wxTreeCtrl::GetItemText(const long item) const +wxTreeItemId wxTreeCtrl::GetFirstChild(const wxTreeItemId& item, + long& _cookie) const { - wxTreeItem info; + // remember the last child returned in 'cookie' + _cookie = (long)TreeView_GetChild(GetHwnd(), HITEM(item)); + + return wxTreeItemId((WXHTREEITEM)_cookie); +} - info.m_mask = wxTREE_MASK_TEXT ; - info.m_itemId = item; +wxTreeItemId wxTreeCtrl::GetNextChild(const wxTreeItemId& WXUNUSED(item), + long& _cookie) const +{ + wxTreeItemId l = wxTreeItemId((WXHTREEITEM)TreeView_GetNextSibling(GetHwnd(), + HITEM(_cookie))); + _cookie = (long)l; - if (!GetItem(info)) - return wxString(""); - return info.m_text; + return l; } -void wxTreeCtrl::SetItemText(const long item, const wxString& str) +wxTreeItemId wxTreeCtrl::GetLastChild(const wxTreeItemId& item) const { - wxTreeItem info; + // can this be done more efficiently? + long cookie; + + wxTreeItemId childLast, + child = GetFirstChild(item, cookie); + while ( child.IsOk() ) + { + childLast = child; + child = GetNextChild(item, cookie); + } - info.m_mask = wxTREE_MASK_TEXT ; - info.m_itemId = item; - info.m_text = str; + return childLast; +} + +wxTreeItemId wxTreeCtrl::GetNextSibling(const wxTreeItemId& item) const +{ + return wxTreeItemId((WXHTREEITEM) TreeView_GetNextSibling(GetHwnd(), HITEM(item))); +} - SetItem(info); +wxTreeItemId wxTreeCtrl::GetPrevSibling(const wxTreeItemId& item) const +{ + return wxTreeItemId((WXHTREEITEM) TreeView_GetPrevSibling(GetHwnd(), HITEM(item))); } -long wxTreeCtrl::GetItemData(const long item) const +wxTreeItemId wxTreeCtrl::GetFirstVisibleItem() const { - wxTreeItem info; + return wxTreeItemId((WXHTREEITEM) TreeView_GetFirstVisible(GetHwnd())); +} - info.m_mask = wxTREE_MASK_DATA ; - info.m_itemId = item; +wxTreeItemId wxTreeCtrl::GetNextVisible(const wxTreeItemId& item) const +{ + wxASSERT_MSG( IsVisible(item), wxT("The item you call GetNextVisible() for must be visible itself!")); - if (!GetItem(info)) - return 0; - return info.m_data; + return wxTreeItemId((WXHTREEITEM) TreeView_GetNextVisible(GetHwnd(), HITEM(item))); } -bool wxTreeCtrl::SetItemData(const long item, long data) +wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const { - wxTreeItem info; + 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 +// ---------------------------------------------------------------------------- - info.m_mask = wxTREE_MASK_DATA ; - info.m_itemId = item; - info.m_data = data; +bool wxTreeCtrl::IsItemChecked(const wxTreeItemId& item) const +{ + // receive the desired information. + wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK); + DoGetItem(&tvItem); - return SetItem(info); + // state image indices are 1 based + return ((tvItem.state >> 12) - 1) == 1; } -bool wxTreeCtrl::GetItemRect(const long item, wxRectangle& rect, bool textOnly) const +void wxTreeCtrl::SetItemCheck(const wxTreeItemId& item, bool check) { - RECT rect2; + // receive the desired information. + wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK); - *(HTREEITEM*)& rect2 = (HTREEITEM) item; - bool success = (::SendMessage((HWND) GetHWND(), TVM_GETITEMRECT, (WPARAM)textOnly, - (LPARAM)&rect2) != 0); + // state images are one-based + tvItem.state = (check ? 2 : 1) << 12; - rect.x = rect2.left; - rect.y = rect2.top; - rect.width = rect2.right - rect2.left; - rect.height = rect2.bottom - rect2.left; - return success; + DoSetItem(&tvItem); } -wxTextCtrl& wxTreeCtrl::GetEditControl(void) const +size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds& selections) const { - HWND hWnd = (HWND) TreeView_GetEditControl((HWND) GetHWND()); - ((wxTreeCtrl *)this)->m_textCtrl.SetHWND((WXHWND) hWnd); - return (wxTextCtrl&) m_textCtrl; + TraverseSelections selector(this, selections); + + return selector.GetCount(); } -// Operations -bool wxTreeCtrl::DeleteItem(const long item) +// ---------------------------------------------------------------------------- +// Usual operations +// ---------------------------------------------------------------------------- + +wxTreeItemId wxTreeCtrl::DoInsertItem(const wxTreeItemId& parent, + wxTreeItemId hInsertAfter, + const wxString& text, + int image, int selectedImage, + wxTreeItemData *data) { - return (TreeView_DeleteItem((HWND) GetHWND(), (HTREEITEM) item) != 0); + wxCHECK_MSG( parent.IsOk() || !TreeView_GetRoot(GetHwnd()), + wxTreeItemId(), + _T("can't have more than one root in the tree") ); + + TV_INSERTSTRUCT tvIns; + 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 ) + { + tvIns.hInsertAfter = TVI_FIRST; + } + + UINT mask = 0; + if ( !text.IsEmpty() ) + { + 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 ) + { + mask |= TVIF_IMAGE; + tvIns.item.iImage = image; + + if ( selectedImage == -1 ) + { + // take the same image for selected icon if not specified + selectedImage = image; + } + } + + if ( selectedImage != -1 ) + { + mask |= TVIF_SELECTEDIMAGE; + tvIns.item.iSelectedImage = selectedImage; + } + + if ( data != NULL ) + { + mask |= TVIF_PARAM; + tvIns.item.lParam = (LPARAM)data; + } + + tvIns.item.mask = mask; + + HTREEITEM id = (HTREEITEM) TreeView_InsertItem(GetHwnd(), &tvIns); + if ( id == 0 ) + { + wxLogLastError(wxT("TreeView_InsertItem")); + } + + if ( data != NULL ) + { + // associate the application tree item with Win32 tree item handle + data->SetId((WXHTREEITEM)id); + } + + return wxTreeItemId((WXHTREEITEM)id); } -bool wxTreeCtrl::ExpandItem(const long item, const int action) +// for compatibility only +wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent, + const wxString& text, + int image, int selImage, + long insertAfter) { - UINT mswAction = TVE_EXPAND; - switch ( action ) - { - case wxTREE_EXPAND_EXPAND: - mswAction = TVE_EXPAND; - break; - case wxTREE_EXPAND_COLLAPSE: - mswAction = TVE_COLLAPSE; - case wxTREE_EXPAND_COLLAPSE_RESET: - mswAction = TVE_COLLAPSERESET; - case wxTREE_EXPAND_TOGGLE: - mswAction = TVE_TOGGLE; - break; - default : - break; - } - return (TreeView_Expand((HWND) GetHWND(), (HTREEITEM) item, mswAction) != 0); + return DoInsertItem(parent, (WXHTREEITEM)insertAfter, text, + image, selImage, NULL); } -long wxTreeCtrl::InsertItem(const long parent, wxTreeItem& info, const long insertAfter) +wxTreeItemId wxTreeCtrl::AddRoot(const wxString& text, + int image, int selectedImage, + wxTreeItemData *data) { - TV_INSERTSTRUCT tvInsertStruct; - tvInsertStruct.hParent = (HTREEITEM) parent ; - tvInsertStruct.hInsertAfter = (HTREEITEM) insertAfter ; + return DoInsertItem(wxTreeItemId((long) (WXHTREEITEM) 0), (long)(WXHTREEITEM) 0, + text, image, selectedImage, data); +} - wxConvertToMSWTreeItem(info, tvInsertStruct.item); +wxTreeItemId wxTreeCtrl::PrependItem(const wxTreeItemId& parent, + const wxString& text, + int image, int selectedImage, + wxTreeItemData *data) +{ + return DoInsertItem(parent, (WXHTREEITEM) TVI_FIRST, + text, image, selectedImage, data); +} - return (long) TreeView_InsertItem((HWND) GetHWND(), & tvInsertStruct); +wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent, + const wxTreeItemId& idPrevious, + const wxString& text, + int image, int selectedImage, + wxTreeItemData *data) +{ + return DoInsertItem(parent, idPrevious, text, image, selectedImage, data); } -long wxTreeCtrl::InsertItem(const long parent, const wxString& label, const int image, const int selImage, - const long insertAfter) +wxTreeItemId wxTreeCtrl::InsertItem(const wxTreeItemId& parent, + size_t index, + const wxString& text, + int image, int selectedImage, + wxTreeItemData *data) { - wxTreeItem info; - info.m_text = label; - info.m_mask = wxTREE_MASK_TEXT; - if ( image > -1 ) - { - info.m_mask |= wxTREE_MASK_IMAGE | wxTREE_MASK_SELECTED_IMAGE; - info.m_image = image; - if ( selImage == -1 ) - info.m_selectedImage = image; - else - info.m_selectedImage = selImage; - } + // find the item from index + long cookie; + wxTreeItemId idPrev, idCur = GetFirstChild(parent, cookie); + while ( index != 0 && idCur.IsOk() ) + { + index--; - return InsertItem(parent, info, insertAfter); + 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); } -bool wxTreeCtrl::SelectItem(const long item) +wxTreeItemId wxTreeCtrl::AppendItem(const wxTreeItemId& parent, + const wxString& text, + int image, int selectedImage, + wxTreeItemData *data) { - return (TreeView_SelectItem((HWND) GetHWND(), (HTREEITEM) item) != 0); + return DoInsertItem(parent, (WXHTREEITEM) TVI_LAST, + text, image, selectedImage, data); } -bool wxTreeCtrl::ScrollTo(const long item) +void wxTreeCtrl::Delete(const wxTreeItemId& item) { - return (TreeView_SelectSetFirstVisible((HWND) GetHWND(), (HTREEITEM) item) != 0); + if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) ) + { + wxLogLastError(wxT("TreeView_DeleteItem")); + } } -bool wxTreeCtrl::DeleteAllItems(void) +// delete all children (but don't delete the item itself) +void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item) { - return (TreeView_DeleteAllItems((HWND) GetHWND()) != 0); + long cookie; + + wxArrayLong children; + wxTreeItemId child = GetFirstChild(item, cookie); + while ( child.IsOk() ) + { + children.Add((long)(WXHTREEITEM)child); + + child = GetNextChild(item, cookie); + } + + size_t nCount = children.Count(); + for ( size_t n = 0; n < nCount; n++ ) + { + if ( !TreeView_DeleteItem(GetHwnd(), (HTREEITEM)children[n]) ) + { + wxLogLastError(wxT("TreeView_DeleteItem")); + } + } } -wxTextCtrl& wxTreeCtrl::Edit(const long item) +void wxTreeCtrl::DeleteAllItems() { - HWND hWnd = (HWND) TreeView_EditLabel((HWND) GetHWND(), item); - m_textCtrl.SetHWND((WXHWND) hWnd); - return m_textCtrl; + if ( !TreeView_DeleteAllItems(GetHwnd()) ) + { + wxLogLastError(wxT("TreeView_DeleteAllItems")); + } } -long wxTreeCtrl::HitTest(const wxPoint& point, int& flags) +void wxTreeCtrl::DoExpand(const wxTreeItemId& item, int flag) { - TV_HITTESTINFO hitTestInfo; - hitTestInfo.pt.x = (int) point.x; - hitTestInfo.pt.y = (int) point.y; + wxASSERT_MSG( flag == TVE_COLLAPSE || + flag == (TVE_COLLAPSE | TVE_COLLAPSERESET) || + flag == TVE_EXPAND || + flag == TVE_TOGGLE, + 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 + // v 4.70 - now it does send them but only the first time. To maintain + // compatible behaviour and also in order to not have surprises with the + // future versions, don't rely on this and still do everything ourselves. + // To avoid that the messages be sent twice when the item is expanded for + // the first time we must clear TVIS_EXPANDEDONCE style manually. + + wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_EXPANDEDONCE); + tvItem.state = 0; + DoSetItem(&tvItem); + + if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) != 0 ) + { + wxTreeEvent event(wxEVT_NULL, m_windowId); + event.m_item = item; - TreeView_HitTest((HWND) GetHWND(), & hitTestInfo); + bool isExpanded = IsExpanded(item); - flags = 0; - if ( hitTestInfo.flags & TVHT_ABOVE ) - flags |= wxTREE_HITTEST_ABOVE; - if ( hitTestInfo.flags & TVHT_BELOW ) - flags |= wxTREE_HITTEST_BELOW; - if ( hitTestInfo.flags & TVHT_NOWHERE ) - flags |= wxTREE_HITTEST_NOWHERE; - if ( hitTestInfo.flags & TVHT_ONITEMBUTTON ) - flags |= wxTREE_HITTEST_ONITEMBUTTON; - if ( hitTestInfo.flags & TVHT_ONITEMICON ) - flags |= wxTREE_HITTEST_ONITEMICON; - if ( hitTestInfo.flags & TVHT_ONITEMINDENT ) - flags |= wxTREE_HITTEST_ONITEMINDENT; - if ( hitTestInfo.flags & TVHT_ONITEMLABEL ) - flags |= wxTREE_HITTEST_ONITEMLABEL; - if ( hitTestInfo.flags & TVHT_ONITEMRIGHT ) - flags |= wxTREE_HITTEST_ONITEMRIGHT; - if ( hitTestInfo.flags & TVHT_ONITEMSTATEICON ) - flags |= wxTREE_HITTEST_ONITEMSTATEICON; - if ( hitTestInfo.flags & TVHT_TOLEFT ) - flags |= wxTREE_HITTEST_TOLEFT; - if ( hitTestInfo.flags & TVHT_TORIGHT ) - flags |= wxTREE_HITTEST_TORIGHT; + event.SetEventObject(this); - return (long) hitTestInfo.hItem ; + // FIXME return value of {EXPAND|COLLAPS}ING event handler is discarded + event.SetEventType(g_events[isExpanded][TRUE]); + GetEventHandler()->ProcessEvent(event); + + event.SetEventType(g_events[isExpanded][FALSE]); + GetEventHandler()->ProcessEvent(event); + } + //else: change didn't took place, so do nothing at all } -/* -wxImageList *wxTreeCtrl::CreateDragImage(const long item) +void wxTreeCtrl::Expand(const wxTreeItemId& item) { + DoExpand(item, TVE_EXPAND); } -*/ -bool wxTreeCtrl::SortChildren(const long item) +void wxTreeCtrl::Collapse(const wxTreeItemId& item) { - return (TreeView_SortChildren((HWND) GetHWND(), (HTREEITEM) item, 0) != 0); + DoExpand(item, TVE_COLLAPSE); } -bool wxTreeCtrl::EnsureVisible(const long item) +void wxTreeCtrl::CollapseAndReset(const wxTreeItemId& item) { - return (TreeView_EnsureVisible((HWND) GetHWND(), (HTREEITEM) item) != 0); + DoExpand(item, TVE_COLLAPSE | TVE_COLLAPSERESET); } -bool wxTreeCtrl::MSWCommand(const WXUINT cmd, const WXWORD id) +void wxTreeCtrl::Toggle(const wxTreeItemId& item) { - if (cmd == EN_UPDATE) - { - wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id); - event.SetEventObject( this ); - ProcessCommand(event); - return TRUE; - } - else if (cmd == EN_KILLFOCUS) - { - wxCommandEvent event(wxEVT_KILL_FOCUS, id); - event.SetEventObject( this ); - ProcessCommand(event); - return TRUE; - } - else return FALSE; -} - -bool wxTreeCtrl::MSWNotify(const WXWPARAM wParam, const WXLPARAM lParam) -{ - wxTreeEvent event(0, m_windowId); - int eventType = 0; - NMHDR* hdr1 = (NMHDR*) lParam; - switch ( hdr1->code ) - { - case TVN_BEGINDRAG: - { - eventType = wxEVT_COMMAND_TREE_BEGIN_DRAG; - NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam; - wxConvertFromMSWTreeItem(event.m_item, hdr->itemNew, (HWND) GetHWND()); - event.m_pointDrag.x = hdr->ptDrag.x; - event.m_pointDrag.y = hdr->ptDrag.y; - break; - } - case TVN_BEGINLABELEDIT: - { - eventType = wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT; - TV_DISPINFO *info = (TV_DISPINFO *)lParam; - wxConvertFromMSWTreeItem(event.m_item, info->item, (HWND) GetHWND()); - break; - } - case TVN_BEGINRDRAG: - { - eventType = wxEVT_COMMAND_TREE_BEGIN_RDRAG; - NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam; - wxConvertFromMSWTreeItem(event.m_item, hdr->itemNew, (HWND) GetHWND()); - event.m_pointDrag.x = hdr->ptDrag.x; - event.m_pointDrag.y = hdr->ptDrag.y; - break; - } - case TVN_DELETEITEM: - { - eventType = wxEVT_COMMAND_TREE_DELETE_ITEM; - NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam; - wxConvertFromMSWTreeItem(event.m_item, hdr->itemOld, (HWND) GetHWND()); - event.m_pointDrag.x = hdr->ptDrag.x; - event.m_pointDrag.y = hdr->ptDrag.y; - break; - } - case TVN_ENDLABELEDIT: - { - eventType = wxEVT_COMMAND_TREE_END_LABEL_EDIT; - TV_DISPINFO *info = (TV_DISPINFO *)lParam; - wxConvertFromMSWTreeItem(event.m_item, info->item, (HWND) GetHWND()); - break; - } - case TVN_GETDISPINFO: - { - eventType = wxEVT_COMMAND_TREE_GET_INFO; - TV_DISPINFO *info = (TV_DISPINFO *)lParam; - wxConvertFromMSWTreeItem(event.m_item, info->item, (HWND) GetHWND()); - break; - } - case TVN_ITEMEXPANDING: - { - eventType = wxEVT_COMMAND_TREE_ITEM_EXPANDING; - NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam; - wxConvertFromMSWTreeItem(event.m_item, hdr->itemNew, (HWND) GetHWND()); - - switch ( hdr->action ) - { - case TVE_EXPAND: - event.m_code = wxTREE_EXPAND_EXPAND; - break; - case TVE_COLLAPSE: - event.m_code = wxTREE_EXPAND_COLLAPSE; - case TVE_COLLAPSERESET: - event.m_code = wxTREE_EXPAND_COLLAPSE_RESET; - case TVE_TOGGLE: - event.m_code = wxTREE_EXPAND_TOGGLE; - break; - default : - break; - } - break; - } - case TVN_ITEMEXPANDED: - { - eventType = wxEVT_COMMAND_TREE_ITEM_EXPANDED; - NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam; - wxConvertFromMSWTreeItem(event.m_item, hdr->itemNew, (HWND) GetHWND()); - switch ( hdr->action ) - { - case TVE_EXPAND: - event.m_code = wxTREE_EXPAND_EXPAND; - break; - case TVE_COLLAPSE: - event.m_code = wxTREE_EXPAND_COLLAPSE; - case TVE_COLLAPSERESET: - event.m_code = wxTREE_EXPAND_COLLAPSE_RESET; - case TVE_TOGGLE: - event.m_code = wxTREE_EXPAND_TOGGLE; - break; - default : - break; - } - break; - } - case TVN_KEYDOWN: - { - eventType = wxEVT_COMMAND_TREE_KEY_DOWN; - TV_KEYDOWN *info = (TV_KEYDOWN *)lParam; - event.m_code = wxCharCodeMSWToWX(info->wVKey); - break; - } - case TVN_SELCHANGED: - { - eventType = wxEVT_COMMAND_TREE_SEL_CHANGED; - NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam; - wxConvertFromMSWTreeItem(event.m_item, hdr->itemNew, (HWND) GetHWND()); - event.m_oldItem = (long) hdr->itemNew.hItem; - - break; - } - case TVN_SELCHANGING: - { - eventType = wxEVT_COMMAND_TREE_SEL_CHANGING; - NM_TREEVIEW* hdr = (NM_TREEVIEW*)lParam; - wxConvertFromMSWTreeItem(event.m_item, hdr->itemNew, (HWND) GetHWND()); - event.m_oldItem = (long) hdr->itemNew.hItem; - break; - } - case TVN_SETDISPINFO: - { - eventType = wxEVT_COMMAND_TREE_SET_INFO; - TV_DISPINFO *info = (TV_DISPINFO *)lParam; - wxConvertFromMSWTreeItem(event.m_item, info->item, (HWND) GetHWND()); - break; - } - - default : - return wxControl::MSWNotify(wParam, lParam); - break; - } - - event.SetEventObject( this ); - event.SetEventType(eventType); - - if ( !GetEventHandler()->ProcessEvent(event) ) - return FALSE; - - if (hdr1->code == TVN_GETDISPINFO) - { - TV_DISPINFO *info = (TV_DISPINFO *)lParam; - wxConvertToMSWTreeItem(event.m_item, info->item); - } + DoExpand(item, TVE_TOGGLE); +} - return TRUE; +void wxTreeCtrl::ExpandItem(const wxTreeItemId& item, int action) +{ + DoExpand(item, action); } -// Tree item structure -wxTreeItem::wxTreeItem(void) +void wxTreeCtrl::Unselect() { - m_mask = 0; - m_itemId = 0; - m_state = 0; - m_stateMask = 0; - m_image = -1; - m_selectedImage = -1; - m_children = 0; - m_data = 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)); } -// If getFullInfo is TRUE, we explicitly query for more info if we haven't got it all. -static void wxConvertFromMSWTreeItem(wxTreeItem& info, TV_ITEM& tvItem, HWND getFullInfo) +void wxTreeCtrl::UnselectAll() { - info.m_data = tvItem.lParam; - info.m_mask = 0; - info.m_state = 0; - info.m_stateMask = 0; + if ( m_windowStyle & wxTR_MULTIPLE ) + { + wxArrayTreeItemIds selections; + 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 + { + // 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() ) + { + 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 + } +} + +void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item) +{ + // no error return + TreeView_EnsureVisible(GetHwnd(), HITEM(item)); +} + +void wxTreeCtrl::ScrollTo(const wxTreeItemId& item) +{ + if ( !TreeView_SelectSetFirstVisible(GetHwnd(), HITEM(item)) ) + { + 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; +} + +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; + m_textCtrl = NULL; + } +} + +wxTextCtrl* wxTreeCtrl::EditLabel(const wxTreeItemId& item, + wxClassInfo* textControlClass) +{ + wxASSERT( textControlClass->IsKindOf(CLASSINFO(wxTextCtrl)) ); + + DeleteTextCtrl(); + + HWND hWnd = (HWND) TreeView_EditLabel(GetHwnd(), HITEM(item)); + + // this is not an error - the TVN_BEGINLABELEDIT handler might have + // returned FALSE + if ( !hWnd ) + { + return NULL; + } + + m_textCtrl = (wxTextCtrl *)textControlClass->CreateObject(); + m_textCtrl->SetParent(this); + m_textCtrl->SetHWND((WXHWND)hWnd); + m_textCtrl->SubclassWin((WXHWND)hWnd); + + return m_textCtrl; +} + +// End label editing, optionally cancelling the edit +void wxTreeCtrl::EndEditLabel(const wxTreeItemId& WXUNUSED(item), bool discardChanges) +{ + TreeView_EndEditLabelNow(GetHwnd(), discardChanges); + + DeleteTextCtrl(); +} + +wxTreeItemId wxTreeCtrl::HitTest(const wxPoint& point, int& flags) +{ + TV_HITTESTINFO hitTestInfo; + hitTestInfo.pt.x = (int)point.x; + hitTestInfo.pt.y = (int)point.y; + + TreeView_HitTest(GetHwnd(), &hitTestInfo); + + flags = 0; + + // avoid repetition + #define TRANSLATE_FLAG(flag) if ( hitTestInfo.flags & TVHT_##flag ) \ + flags |= wxTREE_HITTEST_##flag + + TRANSLATE_FLAG(ABOVE); + TRANSLATE_FLAG(BELOW); + TRANSLATE_FLAG(NOWHERE); + TRANSLATE_FLAG(ONITEMBUTTON); + TRANSLATE_FLAG(ONITEMICON); + TRANSLATE_FLAG(ONITEMINDENT); + TRANSLATE_FLAG(ONITEMLABEL); + TRANSLATE_FLAG(ONITEMRIGHT); + TRANSLATE_FLAG(ONITEMSTATEICON); + TRANSLATE_FLAG(TOLEFT); + TRANSLATE_FLAG(TORIGHT); - long oldMask = tvItem.mask; + #undef TRANSLATE_FLAG - bool needText = FALSE; - if (getFullInfo != 0) - { - if ( tvItem.mask & TVIF_TEXT ) - needText = FALSE; + return wxTreeItemId((WXHTREEITEM) hitTestInfo.hItem); +} + +bool wxTreeCtrl::GetBoundingRect(const wxTreeItemId& item, + wxRect& rect, + bool textOnly) const +{ + RECT rc; + if ( TreeView_GetItemRect(GetHwnd(), HITEM(item), + &rc, textOnly) ) + { + rect = wxRect(wxPoint(rc.left, rc.top), wxPoint(rc.right, rc.bottom)); + + return TRUE; + } else - needText = TRUE; + { + // couldn't retrieve rect: for example, item isn't visible + return FALSE; + } +} + +// ---------------------------------------------------------------------------- +// sorting stuff +// ---------------------------------------------------------------------------- + +static int CALLBACK TreeView_CompareCallback(wxTreeItemData *pItem1, + wxTreeItemData *pItem2, + wxTreeCtrl *tree) +{ + wxCHECK_MSG( pItem1 && pItem2, 0, + wxT("sorting tree without data doesn't make sense") ); - if ( needText ) + return tree->OnCompareItems(pItem1->GetId(), pItem2->GetId()); +} + +int wxTreeCtrl::OnCompareItems(const wxTreeItemId& item1, + const wxTreeItemId& item2) +{ + return wxStrcmp(GetItemText(item1), GetItemText(item2)); +} + +void wxTreeCtrl::SortChildren(const wxTreeItemId& item) +{ + // rely on the fact that TreeView_SortChildren does the same thing as our + // default behaviour, i.e. sorts items alphabetically and so call it + // directly if we're not in derived class (much more efficient!) + if ( GetClassInfo() == CLASSINFO(wxTreeCtrl) ) { - tvItem.pszText = new char[513]; - tvItem.cchTextMax = 512; + TreeView_SortChildren(GetHwnd(), HITEM(item), 0); } - tvItem.mask |= TVIF_HANDLE | TVIF_STATE | TVIF_TEXT | TVIF_IMAGE | TVIF_SELECTEDIMAGE | TVIF_CHILDREN | TVIF_PARAM ; - ::SendMessage(getFullInfo, TVM_GETITEM, 0, (LPARAM)& tvItem) ; - } + else + { + TV_SORTCB tvSort; + tvSort.hParent = HITEM(item); + tvSort.lpfnCompare = (PFNTVCOMPARE)TreeView_CompareCallback; + tvSort.lParam = (LPARAM)this; + TreeView_SortChildrenCB(GetHwnd(), &tvSort, 0 /* reserved */); + } +} - if ( tvItem.mask & TVIF_HANDLE ) - { - info.m_mask |= wxTREE_MASK_HANDLE; - info.m_itemId = (long) tvItem.hItem; - } - if ( tvItem.mask & TVIF_STATE ) - { - info.m_mask |= wxTREE_MASK_STATE; - if ( tvItem.stateMask & TVIS_BOLD) - { - info.m_stateMask |= wxTREE_STATE_BOLD ; - if ( tvItem.state & TVIS_BOLD ) - info.m_state |= wxTREE_STATE_BOLD ; - } - - if ( tvItem.stateMask & TVIS_CUT) - { - info.m_stateMask |= wxTREE_STATE_CUT ; - if ( tvItem.state & TVIS_CUT ) - info.m_state |= wxTREE_STATE_CUT ; - } - - if ( tvItem.stateMask & TVIS_DROPHILITED) - { - info.m_stateMask |= wxTREE_STATE_DROPHILITED ; - if ( tvItem.state & TVIS_DROPHILITED ) - info.m_state |= wxTREE_STATE_DROPHILITED ; - } - if ( tvItem.stateMask & TVIS_EXPANDED) - { - info.m_stateMask |= wxTREE_STATE_EXPANDED ; - if ( tvItem.state & TVIS_EXPANDED ) - info.m_state |= wxTREE_STATE_EXPANDED ; - } - if ( tvItem.stateMask & TVIS_EXPANDEDONCE) - { - info.m_stateMask |= wxTREE_STATE_EXPANDEDONCE ; - if ( tvItem.state & TVIS_EXPANDEDONCE ) - info.m_state |= wxTREE_STATE_EXPANDEDONCE ; - } - if ( tvItem.stateMask & TVIS_FOCUSED) - { - info.m_stateMask |= wxTREE_STATE_FOCUSED ; - if ( tvItem.state & TVIS_FOCUSED ) - info.m_state |= wxTREE_STATE_FOCUSED ; - } - if ( tvItem.stateMask & TVIS_SELECTED) - { - info.m_stateMask |= wxTREE_STATE_SELECTED ; - if ( tvItem.state & TVIS_SELECTED ) - info.m_state |= wxTREE_STATE_SELECTED ; - } - } - - if ( tvItem.mask & TVIF_TEXT ) - { - info.m_mask |= wxTREE_MASK_TEXT; - info.m_text = tvItem.pszText; - } - if ( tvItem.mask & TVIF_IMAGE ) - { - info.m_mask |= wxTREE_MASK_IMAGE; - info.m_image = tvItem.iImage; - } - if ( tvItem.mask & TVIF_SELECTEDIMAGE ) - { - info.m_mask |= wxTREE_MASK_SELECTED_IMAGE; - info.m_selectedImage = tvItem.iSelectedImage; - } - if ( tvItem.mask & TVIF_CHILDREN ) - { - info.m_mask |= wxTREE_MASK_CHILDREN; - info.m_children = tvItem.cChildren; - } - if ( tvItem.mask & TVIF_PARAM ) - info.m_mask |= wxTREE_MASK_DATA; - - if (needText) - { - if (tvItem.pszText) - delete[] tvItem.pszText; - } - tvItem.mask = oldMask ; -} - -static void wxConvertToMSWTreeItem(wxTreeItem& info, TV_ITEM& tvItem) -{ - tvItem.hItem = (HTREEITEM) info.m_itemId ; - - tvItem.iImage = info.m_image ; - tvItem.iSelectedImage = info.m_selectedImage; - tvItem.cChildren = info.m_children; - tvItem.lParam = info.m_data; - tvItem.mask = 0; - tvItem.stateMask = 0; - tvItem.state = 0; - - if (info.m_mask & wxTREE_MASK_HANDLE) - tvItem.mask |= TVIF_HANDLE ; - if (info.m_mask & wxTREE_MASK_STATE) - tvItem.mask |= TVIF_STATE ; - if (info.m_mask & wxTREE_MASK_TEXT) - { - tvItem.mask |= TVIF_TEXT ; - tvItem.pszText = (char *) (const char *)info.m_text ; - if ( tvItem.pszText ) - tvItem.cchTextMax = info.m_text.Length(); +// ---------------------------------------------------------------------------- +// implementation +// ---------------------------------------------------------------------------- + +bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id) +{ + if ( cmd == EN_UPDATE ) + { + wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id); + event.SetEventObject( this ); + ProcessCommand(event); + } + else if ( cmd == EN_KILLFOCUS ) + { + wxCommandEvent event(wxEVT_KILL_FOCUS, id); + event.SetEventObject( this ); + ProcessCommand(event); + } else - tvItem.cchTextMax = 0; - } - if (info.m_mask & wxTREE_MASK_IMAGE) - tvItem.mask |= TVIF_IMAGE ; - if (info.m_mask & wxTREE_MASK_SELECTED_IMAGE) - tvItem.mask |= TVIF_SELECTEDIMAGE ; - if (info.m_mask & wxTREE_MASK_CHILDREN) - tvItem.mask |= TVIF_CHILDREN ; - if (info.m_mask & wxTREE_MASK_DATA) - tvItem.mask |= TVIF_PARAM ; - - if (info.m_stateMask & wxTREE_STATE_BOLD) - { - tvItem.stateMask |= TVIS_BOLD ; - tvItem.state |= TVIS_BOLD; - } - if (info.m_stateMask & wxTREE_STATE_CUT) - { - tvItem.stateMask |= TVIS_CUT ; - if ( info.m_state & wxTREE_STATE_CUT ) - tvItem.state |= TVIS_CUT; - } - if (info.m_stateMask & wxTREE_STATE_DROPHILITED) - { - tvItem.stateMask |= TVIS_DROPHILITED; - if ( info.m_state & wxTREE_STATE_DROPHILITED ) - tvItem.state |= TVIS_DROPHILITED; - } - if (info.m_stateMask & wxTREE_STATE_EXPANDED) - { - tvItem.stateMask |= TVIS_EXPANDED; - if ( info.m_state & wxTREE_STATE_EXPANDED ) - tvItem.state |= TVIS_EXPANDED; - } - if (info.m_stateMask & wxTREE_STATE_EXPANDEDONCE) - { - tvItem.stateMask |= TVIS_EXPANDEDONCE; - if ( info.m_state & wxTREE_STATE_EXPANDEDONCE ) - tvItem.state |= TVIS_EXPANDEDONCE; - } - if (info.m_stateMask & wxTREE_STATE_FOCUSED) - { - tvItem.stateMask |= TVIS_FOCUSED; - if ( info.m_state & wxTREE_STATE_FOCUSED ) - tvItem.state |= TVIS_FOCUSED; - } - if (info.m_stateMask & wxTREE_STATE_SELECTED) - { - tvItem.stateMask |= TVIS_SELECTED; - if ( info.m_state & wxTREE_STATE_SELECTED ) - tvItem.state |= TVIS_SELECTED; - } -} - -// Tree event -IMPLEMENT_DYNAMIC_CLASS(wxTreeEvent, wxCommandEvent) - -wxTreeEvent::wxTreeEvent(WXTYPE commandType, int id): - wxCommandEvent(commandType, id) -{ - m_code = 0; - m_oldItem = 0; + { + // nothing done + return FALSE; + } + + // command processed + 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) +{ + wxTreeEvent event(wxEVT_NULL, m_windowId); + wxEventType eventType = wxEVT_NULL; + NMHDR *hdr = (NMHDR *)lParam; + + switch ( hdr->code ) + { + case TVN_BEGINDRAG: + eventType = wxEVT_COMMAND_TREE_BEGIN_DRAG; + // fall through + + case TVN_BEGINRDRAG: + { + if ( eventType == wxEVT_NULL ) + eventType = wxEVT_COMMAND_TREE_BEGIN_RDRAG; + //else: left drag, already set above + + NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam; + + event.m_item = (WXHTREEITEM) tv->itemNew.hItem; + event.m_pointDrag = wxPoint(tv->ptDrag.x, tv->ptDrag.y); + + // 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: + { + eventType = wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT; + TV_DISPINFO *info = (TV_DISPINFO *)lParam; + + event.m_item = (WXHTREEITEM) info->item.hItem; + event.m_label = info->item.pszText; + } + break; + + case TVN_DELETEITEM: + { + eventType = wxEVT_COMMAND_TREE_DELETE_ITEM; + NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam; + + event.m_item = (WXHTREEITEM)tv->itemOld.hItem; + + if ( m_hasAnyAttr ) + { + delete (wxTreeItemAttr *)m_attrs. + Delete((long)tv->itemOld.hItem); + } + } + break; + + case TVN_ENDLABELEDIT: + { + eventType = wxEVT_COMMAND_TREE_END_LABEL_EDIT; + TV_DISPINFO *info = (TV_DISPINFO *)lParam; + + event.m_item = (WXHTREEITEM)info->item.hItem; + event.m_label = info->item.pszText; + if (info->item.pszText == NULL) + return FALSE; + break; + } + + case TVN_GETDISPINFO: + eventType = wxEVT_COMMAND_TREE_GET_INFO; + // fall through + + case TVN_SETDISPINFO: + { + if ( eventType == wxEVT_NULL ) + eventType = wxEVT_COMMAND_TREE_SET_INFO; + //else: get, already set above + + TV_DISPINFO *info = (TV_DISPINFO *)lParam; + + event.m_item = (WXHTREEITEM) info->item.hItem; + break; + } + + case TVN_ITEMEXPANDING: + event.m_code = FALSE; + // fall through + + case TVN_ITEMEXPANDED: + { + NM_TREEVIEW* tv = (NM_TREEVIEW*)lParam; + + bool expand = FALSE; + switch ( tv->action ) + { + case TVE_EXPAND: + expand = TRUE; + break; + + case TVE_COLLAPSE: + expand = FALSE; + break; + + default: + wxLogDebug(wxT("unexpected code %d in TVN_ITEMEXPAND message"), tv->action); + } + + bool ing = ((int)hdr->code == TVN_ITEMEXPANDING); + eventType = g_events[expand][ing]; + + event.m_item = (WXHTREEITEM) tv->itemNew.hItem; + } + 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 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 + + (void)GetEventHandler()->ProcessEvent(event2); + } + } + break; + + case TVN_SELCHANGED: + eventType = wxEVT_COMMAND_TREE_SEL_CHANGED; + // fall through + + case TVN_SELCHANGING: + { + if ( eventType == wxEVT_NULL ) + eventType = wxEVT_COMMAND_TREE_SEL_CHANGING; + //else: already set above + + NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam; + + event.m_item = (WXHTREEITEM) tv->itemNew.hItem; + event.m_itemOld = (WXHTREEITEM) tv->itemOld.hItem; + } + 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); + } + + event.SetEventObject(this); + event.SetEventType(eventType); + + bool processed = GetEventHandler()->ProcessEvent(event); + + // post processing + switch ( hdr->code ) + { + case NM_DBLCLK: + // we translate NM_DBLCLK into ACTIVATED event, so don't interpret + // the return code of this event handler as the return value for + // NM_DBLCLK - otherwise, double clicking the item to toggle its + // expanded status would never work + *result = FALSE; + 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 + // tables, but due to overhead of wxWin event system we + // prefer to do it here ourself (otherwise deleting a tree + // with many items is just too slow) + NM_TREEVIEW* tv = (NM_TREEVIEW *)lParam; + + 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 + } + break; + + case TVN_BEGINLABELEDIT: + // return TRUE to cancel label editing + *result = !event.IsAllowed(); + break; + + case TVN_ENDLABELEDIT: + // 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 + DeleteTextCtrl(); + break; + + case TVN_SELCHANGING: + case TVN_ITEMEXPANDING: + // return TRUE to prevent the action from happening + *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 + } + + return processed; +} + +#endif // __WIN95__ +#endif // wxUSE_TREECTRL