#include "wx/settings.h"
#endif
+#include "wx/dynlib.h"
#include "wx/msw/private.h"
-// Set this to 1 to be _absolutely_ sure that repainting will work for all
-// comctl32.dll versions
-#define wxUSE_COMCTL32_SAFELY 0
-
#include "wx/imaglist.h"
#include "wx/msw/dragimag.h"
+#include "wx/msw/uxtheme.h"
// macros to hide the cast ugliness
// --------------------------------
// get HTREEITEM from wxTreeItemId
#define HITEM(item) ((HTREEITEM)(((item).m_pItem)))
+
+// older SDKs are missing these
+#ifndef TVN_ITEMCHANGINGA
+
+#define TVN_ITEMCHANGINGA (TVN_FIRST-16)
+#define TVN_ITEMCHANGINGW (TVN_FIRST-17)
+
+typedef struct tagNMTVITEMCHANGE
+{
+ NMHDR hdr;
+ UINT uChanged;
+ HTREEITEM hItem;
+ UINT uStateNew;
+ UINT uStateOld;
+ LPARAM lParam;
+} NMTVITEMCHANGE;
+
+#endif
+
+
+// this helper class is used on vista systems for preventing unwanted
+// item state changes in the vista tree control. It is only effective in
+// multi-select mode on vista systems.
+
+// The vista tree control includes some new code that originally broke the
+// multi-selection tree, causing seemingly spurious item selection state changes
+// during Shift or Ctrl-click item selection. (To witness the original broken
+// behaviour, simply make IsLocked() below always return false). This problem was
+// solved by using the following class to 'unlock' an item's selection state.
+
+class TreeItemUnlocker
+{
+public:
+ // unlock a single item
+ TreeItemUnlocker(HTREEITEM item)
+ {
+ m_oldUnlockedItem = ms_unlockedItem;
+ ms_unlockedItem = item;
+ }
+
+ // unlock all items, don't use unless absolutely necessary
+ TreeItemUnlocker()
+ {
+ m_oldUnlockedItem = ms_unlockedItem;
+ ms_unlockedItem = (HTREEITEM)-1;
+ }
+
+ // lock everything back
+ ~TreeItemUnlocker() { ms_unlockedItem = m_oldUnlockedItem; }
+
+
+ // check if the item state is currently locked
+ static bool IsLocked(HTREEITEM item)
+ { return ms_unlockedItem != (HTREEITEM)-1 && item != ms_unlockedItem; }
+
+private:
+ static HTREEITEM ms_unlockedItem;
+ HTREEITEM m_oldUnlockedItem;
+
+ wxDECLARE_NO_COPY_CLASS(TreeItemUnlocker);
+};
+
+HTREEITEM TreeItemUnlocker::ms_unlockedItem = NULL;
+
+// another helper class: set the variable to true during its lifetime and reset
+// it to false when it is destroyed
+//
+// it is currently always used with wxTreeCtrl::m_changingSelection
+class TempSetter
+{
+public:
+ TempSetter(bool& var) : m_var(var)
+ {
+ wxASSERT_MSG( !m_var, "variable shouldn't be already set" );
+ m_var = true;
+ }
+
+ ~TempSetter()
+ {
+ m_var = false;
+ }
+
+private:
+ bool& m_var;
+
+ wxDECLARE_NO_COPY_CLASS(TempSetter);
+};
+
// ----------------------------------------------------------------------------
// private functions
// ----------------------------------------------------------------------------
+namespace
+{
+
+// Work around a problem with TreeView_GetItemRect() when using MinGW/Cygwin:
+// it results in warnings about breaking strict aliasing rules because HITEM is
+// passed via a RECT pointer, so use a union to avoid them and define our own
+// version of the standard macro using it.
+union TVGetItemRectParam
+{
+ RECT rect;
+ HTREEITEM hItem;
+};
+
+inline bool
+wxTreeView_GetItemRect(HWND hwnd,
+ HTREEITEM hItem,
+ TVGetItemRectParam& param,
+ BOOL fItemRect)
+{
+ param.hItem = hItem;
+ return ::SendMessage(hwnd, TVM_GETITEMRECT, fItemRect,
+ (LPARAM)¶m) == TRUE;
+}
+
+} // anonymous namespace
+
// wrappers for TreeView_GetItem/TreeView_SetItem
static bool IsItemSelected(HWND hwndTV, HTREEITEM hItem)
{
-
TV_ITEM tvi;
tvi.mask = TVIF_STATE | TVIF_HANDLE;
tvi.stateMask = TVIS_SELECTED;
tvi.hItem = hItem;
+ TreeItemUnlocker unlocker(hItem);
+
if ( !TreeView_GetItem(hwndTV, &tvi) )
{
wxLogLastError(wxT("TreeView_GetItem"));
tvi.state = select ? TVIS_SELECTED : 0;
tvi.hItem = hItem;
+ TreeItemUnlocker unlocker(hItem);
+
if ( TreeView_SetItem(hwndTV, &tvi) == -1 )
{
wxLogLastError(wxT("TreeView_SetItem"));
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,
+// deselects all the other ones
+//
+// returns true if the selection changed at all or false if nothing changed
+
+// flags for SelectRange()
+enum
+{
+ SR_SIMULATE = 1, // don't do anything, just return true or false
+ SR_UNSELECT_OTHERS = 2 // deselect the items not in range
+};
+
+static bool SelectRange(HWND hwndTV,
HTREEITEM htFirst,
HTREEITEM htLast,
- bool unselectOthers = true)
+ int flags)
{
// find the first (or last) item and select it
+ bool changed = false;
bool cont = true;
HTREEITEM htItem = (HTREEITEM)TreeView_GetRoot(hwndTV);
+
while ( htItem && cont )
{
if ( (htItem == htFirst) || (htItem == htLast) )
{
if ( !IsItemSelected(hwndTV, htItem) )
{
- SelectItem(hwndTV, htItem);
+ if ( !(flags & SR_SIMULATE) )
+ {
+ SelectItem(hwndTV, htItem);
+ }
+
+ changed = true;
}
cont = false;
}
- else
+ else // not first or last
{
- if ( unselectOthers && IsItemSelected(hwndTV, htItem) )
+ if ( flags & SR_UNSELECT_OTHERS )
{
- UnselectItem(hwndTV, htItem);
+ if ( IsItemSelected(hwndTV, htItem) )
+ {
+ if ( !(flags & SR_SIMULATE) )
+ UnselectItem(hwndTV, htItem);
+
+ changed = true;
+ }
}
}
{
if ( !IsItemSelected(hwndTV, htItem) )
{
- SelectItem(hwndTV, htItem);
+ if ( !(flags & SR_SIMULATE) )
+ {
+ SelectItem(hwndTV, htItem);
+ }
+
+ changed = true;
}
cont = (htItem != htFirst) && (htItem != htLast);
htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem);
}
- // unselect the rest
- if ( unselectOthers )
+ // optionally deselect the rest
+ if ( flags & SR_UNSELECT_OTHERS )
{
while ( htItem )
{
if ( IsItemSelected(hwndTV, htItem) )
{
- UnselectItem(hwndTV, htItem);
+ if ( !(flags & SR_SIMULATE) )
+ {
+ UnselectItem(hwndTV, htItem);
+ }
+
+ changed = true;
}
htItem = (HTREEITEM)TreeView_GetNextVisible(hwndTV, htItem);
// seems to be necessary - otherwise the just selected items don't always
// appear as selected
- UpdateWindow(hwndTV);
+ if ( !(flags & SR_SIMULATE) )
+ {
+ UpdateWindow(hwndTV);
+ }
+
+ return changed;
}
// helper function which tricks the standard control into changing the focused
switch ( which )
{
case wxTreeItemIcon_SelectedExpanded:
- image = GetImage(wxTreeItemIcon_Expanded);
+ // We consider that expanded icon is more important than
+ // selected so test for it first.
+ image = m_images[wxTreeItemIcon_Expanded];
+ if ( image == -1 )
+ image = m_images[wxTreeItemIcon_Selected];
if ( image != -1 )
break;
//else: fall through
case wxTreeItemIcon_Selected:
case wxTreeItemIcon_Expanded:
- image = GetImage(wxTreeItemIcon_Normal);
+ image = m_images[wxTreeItemIcon_Normal];
break;
case wxTreeItemIcon_Normal:
break;
default:
- wxFAIL_MSG( _T("unsupported wxTreeItemIcon value") );
+ wxFAIL_MSG( wxT("unsupported wxTreeItemIcon value") );
}
}
// the real client data
wxTreeItemData *m_data;
- DECLARE_NO_COPY_CLASS(wxTreeItemParam)
+ wxDECLARE_NO_COPY_CLASS(wxTreeItemParam);
};
// wxVirutalNode is used in place of a single root when 'hidden' root is
private:
wxTreeItemParam *m_param;
- DECLARE_NO_COPY_CLASS(wxVirtualNode)
+ wxDECLARE_NO_COPY_CLASS(wxVirtualNode);
};
#ifdef __VISUALC__
const wxTreeCtrl *m_tree;
- DECLARE_NO_COPY_CLASS(wxTreeTraversal)
+ wxDECLARE_NO_COPY_CLASS(wxTreeTraversal);
};
// internal class for getting the selected items
private:
wxArrayTreeItemIds& m_selections;
- DECLARE_NO_COPY_CLASS(TraverseSelections)
+ wxDECLARE_NO_COPY_CLASS(TraverseSelections);
};
// internal class for counting tree items
private:
size_t m_count;
- DECLARE_NO_COPY_CLASS(TraverseCounter)
+ wxDECLARE_NO_COPY_CLASS(TraverseCounter);
};
// ----------------------------------------------------------------------------
// wxWin macros
// ----------------------------------------------------------------------------
-#if wxUSE_EXTENDED_RTTI
-WX_DEFINE_FLAGS( wxTreeCtrlStyle )
-
-wxBEGIN_FLAGS( wxTreeCtrlStyle )
- // new style border flags, we put them first to
- // use them for streaming out
- wxFLAGS_MEMBER(wxBORDER_SIMPLE)
- wxFLAGS_MEMBER(wxBORDER_SUNKEN)
- wxFLAGS_MEMBER(wxBORDER_DOUBLE)
- wxFLAGS_MEMBER(wxBORDER_RAISED)
- wxFLAGS_MEMBER(wxBORDER_STATIC)
- wxFLAGS_MEMBER(wxBORDER_NONE)
-
- // old style border flags
- wxFLAGS_MEMBER(wxSIMPLE_BORDER)
- wxFLAGS_MEMBER(wxSUNKEN_BORDER)
- wxFLAGS_MEMBER(wxDOUBLE_BORDER)
- wxFLAGS_MEMBER(wxRAISED_BORDER)
- wxFLAGS_MEMBER(wxSTATIC_BORDER)
- wxFLAGS_MEMBER(wxBORDER)
-
- // standard window styles
- wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
- wxFLAGS_MEMBER(wxCLIP_CHILDREN)
- wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
- wxFLAGS_MEMBER(wxWANTS_CHARS)
- wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
- wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
- wxFLAGS_MEMBER(wxVSCROLL)
- wxFLAGS_MEMBER(wxHSCROLL)
-
- wxFLAGS_MEMBER(wxTR_EDIT_LABELS)
- wxFLAGS_MEMBER(wxTR_NO_BUTTONS)
- wxFLAGS_MEMBER(wxTR_HAS_BUTTONS)
- wxFLAGS_MEMBER(wxTR_TWIST_BUTTONS)
- wxFLAGS_MEMBER(wxTR_NO_LINES)
- wxFLAGS_MEMBER(wxTR_FULL_ROW_HIGHLIGHT)
- wxFLAGS_MEMBER(wxTR_LINES_AT_ROOT)
- wxFLAGS_MEMBER(wxTR_HIDE_ROOT)
- wxFLAGS_MEMBER(wxTR_ROW_LINES)
- wxFLAGS_MEMBER(wxTR_HAS_VARIABLE_ROW_HEIGHT)
- wxFLAGS_MEMBER(wxTR_SINGLE)
- wxFLAGS_MEMBER(wxTR_MULTIPLE)
- wxFLAGS_MEMBER(wxTR_EXTENDED)
- wxFLAGS_MEMBER(wxTR_DEFAULT_STYLE)
-
-wxEND_FLAGS( wxTreeCtrlStyle )
-
-IMPLEMENT_DYNAMIC_CLASS_XTI(wxTreeCtrl, wxControl,"wx/treectrl.h")
-
-wxBEGIN_PROPERTIES_TABLE(wxTreeCtrl)
- wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
- wxEVENT_RANGE_PROPERTY( TreeEvent , wxEVT_COMMAND_TREE_BEGIN_DRAG , wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK , wxTreeEvent )
- wxPROPERTY_FLAGS( WindowStyle , wxTreeCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
-wxEND_PROPERTIES_TABLE()
-
-wxBEGIN_HANDLERS_TABLE(wxTreeCtrl)
-wxEND_HANDLERS_TABLE()
-
-wxCONSTRUCTOR_5( wxTreeCtrl , wxWindow* , Parent , wxWindowID , Id , wxPoint , Position , wxSize , Size , long , WindowStyle )
-#else
-IMPLEMENT_DYNAMIC_CLASS(wxTreeCtrl, wxControl)
-#endif
-
// ----------------------------------------------------------------------------
// constants
// ----------------------------------------------------------------------------
but logically it's a const table with the following entries:
=
{
- { wxEVT_COMMAND_TREE_ITEM_COLLAPSED, wxEVT_COMMAND_TREE_ITEM_COLLAPSING },
- { wxEVT_COMMAND_TREE_ITEM_EXPANDED, wxEVT_COMMAND_TREE_ITEM_EXPANDING }
+ { wxEVT_TREE_ITEM_COLLAPSED, wxEVT_TREE_ITEM_COLLAPSING },
+ { wxEVT_TREE_ITEM_EXPANDED, wxEVT_TREE_ITEM_EXPANDING }
};
*/
{
m_textCtrl = NULL;
m_hasAnyAttr = false;
+#if wxUSE_DRAGIMAGE
m_dragImage = NULL;
+#endif
m_pVirtualRoot = NULL;
+ m_dragStarted = false;
+ m_focusLost = true;
+ m_changingSelection = false;
+ m_triggerStateImageClick = false;
+ m_mouseUpDeselect = false;
// initialize the global array of events now as it can't be done statically
// with the wxEVT_XXX values being allocated during run-time only
- gs_expandEvents[IDX_COLLAPSE][IDX_DONE] = wxEVT_COMMAND_TREE_ITEM_COLLAPSED;
- gs_expandEvents[IDX_COLLAPSE][IDX_DOING] = wxEVT_COMMAND_TREE_ITEM_COLLAPSING;
- gs_expandEvents[IDX_EXPAND][IDX_DONE] = wxEVT_COMMAND_TREE_ITEM_EXPANDED;
- gs_expandEvents[IDX_EXPAND][IDX_DOING] = wxEVT_COMMAND_TREE_ITEM_EXPANDING;
+ gs_expandEvents[IDX_COLLAPSE][IDX_DONE] = wxEVT_TREE_ITEM_COLLAPSED;
+ gs_expandEvents[IDX_COLLAPSE][IDX_DOING] = wxEVT_TREE_ITEM_COLLAPSING;
+ gs_expandEvents[IDX_EXPAND][IDX_DONE] = wxEVT_TREE_ITEM_EXPANDED;
+ gs_expandEvents[IDX_EXPAND][IDX_DOING] = wxEVT_TREE_ITEM_EXPANDING;
}
bool wxTreeCtrl::Create(wxWindow *parent,
DWORD wstyle = MSWGetStyle(m_windowStyle, & exStyle);
wstyle |= WS_TABSTOP | TVS_SHOWSELALWAYS;
- if ((m_windowStyle & wxTR_NO_LINES) == 0)
+ if ( !(m_windowStyle & wxTR_NO_LINES) )
wstyle |= TVS_HASLINES;
if ( m_windowStyle & wxTR_HAS_BUTTONS )
wstyle |= TVS_HASBUTTONS;
if ( !MSWCreateControl(WC_TREEVIEW, wstyle, pos, size) )
return false;
-#if wxUSE_COMCTL32_SAFELY
- wxWindow::SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
- wxWindow::SetForegroundColour(wxWindow::GetParent()->GetForegroundColour());
-#elif 1
SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
SetForegroundColour(wxWindow::GetParent()->GetForegroundColour());
-#else
- // This works around a bug in the Windows tree control whereby for some versions
- // of comctrl32, setting any colour actually draws the background in black.
- // This will initialise the background to the system colour.
- // THIS FIX NOW REVERTED since it caused problems on _other_ systems.
- // Assume the user has an updated comctl32.dll.
- ::SendMessage(GetHwnd(), TVM_SETBKCOLOR, 0,-1);
- wxWindow::SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
- SetForegroundColour(wxWindow::GetParent()->GetForegroundColour());
-#endif
-
- // VZ: this is some experimental code which may be used to get the
- // TVS_CHECKBOXES style functionality for comctl32.dll < 4.71.
- // AFAIK, the standard DLL does about the same thing anyhow.
-#if 0
- if ( m_windowStyle & wxTR_MULTIPLE )
- {
- wxBitmap bmp;
-
- // create the DC compatible with the current screen
- HDC hdcMem = CreateCompatibleDC(NULL);
-
- // create a mono bitmap of the standard size
- int x = ::GetSystemMetrics(SM_CXMENUCHECK);
- int y = ::GetSystemMetrics(SM_CYMENUCHECK);
- wxImageList imagelistCheckboxes(x, y, false, 2);
- HBITMAP hbmpCheck = CreateBitmap(x, y, // bitmap size
- 1, // # of color planes
- 1, // # bits needed for one pixel
- 0); // array containing colour data
- SelectObject(hdcMem, hbmpCheck);
-
- // then draw a check mark into it
- RECT rect = { 0, 0, x, y };
- if ( !::DrawFrameControl(hdcMem, &rect,
- DFC_BUTTON,
- DFCS_BUTTONCHECK | DFCS_CHECKED) )
- {
- wxLogLastError(wxT("DrawFrameControl(check)"));
- }
-
- bmp.SetHBITMAP((WXHBITMAP)hbmpCheck);
- imagelistCheckboxes.Add(bmp);
+ wxSetCCUnicodeFormat(GetHwnd());
- if ( !::DrawFrameControl(hdcMem, &rect,
- DFC_BUTTON,
- DFCS_BUTTONCHECK) )
+ if ( m_windowStyle & wxTR_TWIST_BUTTONS )
+ {
+ // Under Vista and later Explorer uses rotating ("twist") buttons
+ // instead of the default "+/-" ones so apply its theme to the tree
+ // control to implement this style.
+ if ( wxGetWinVersion() >= wxWinVersion_Vista )
{
- wxLogLastError(wxT("DrawFrameControl(uncheck)"));
+ if ( wxUxThemeEngine *theme = wxUxThemeEngine::GetIfActive() )
+ {
+ theme->SetWindowTheme(GetHwnd(), L"EXPLORER", NULL);
+ }
}
-
- bmp.SetHBITMAP((WXHBITMAP)hbmpCheck);
- imagelistCheckboxes.Add(bmp);
-
- // clean up
- ::DeleteDC(hdcMem);
-
- // set the imagelist
- SetStateImageList(&imagelistCheckboxes);
}
-#endif // 0
-
- wxSetCCUnicodeFormat(GetHwnd());
return true;
}
wxTreeCtrl::~wxTreeCtrl()
{
+ m_isBeingDeleted = true;
+
// delete any attributes
if ( m_hasAnyAttr )
{
bool wxTreeCtrl::DoGetItem(wxTreeViewItem *tvItem) const
{
wxCHECK_MSG( tvItem->hItem != TVI_ROOT, false,
- _T("can't retrieve virtual root item") );
+ wxT("can't retrieve virtual root item") );
if ( !TreeView_GetItem(GetHwnd(), tvItem) )
{
void wxTreeCtrl::DoSetItem(wxTreeViewItem *tvItem)
{
+ TreeItemUnlocker unlocker(tvItem->hItem);
+
if ( TreeView_SetItem(GetHwnd(), tvItem) == -1 )
{
wxLogLastError(wxT("TreeView_SetItem"));
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;
}
return;
wxTreeViewItem tvItem(item, TVIF_TEXT);
- tvItem.pszText = (wxChar *)text.wx_str(); // conversion is ok
+ tvItem.pszText = wxMSW_CONV_LPTSTR(text);
DoSetItem(&tvItem);
// when setting the text of the item being edited, the text control should
{
if ( item == m_idEdited )
{
- ::SetWindowText(hwndEdit, text);
+ ::SetWindowText(hwndEdit, text.t_str());
}
}
}
return (wxTreeItemParam *)tvItem.lParam;
}
+bool wxTreeCtrl::HandleTreeEvent(wxTreeEvent& event) const
+{
+ if ( event.m_item.IsOk() )
+ {
+ event.SetClientObject(GetItemData(event.m_item));
+ }
+
+ return HandleWindowEvent(event);
+}
+
wxTreeItemData *wxTreeCtrl::GetItemData(const wxTreeItemId& item) const
{
wxTreeItemParam *data = GetItemParam(item);
}
// 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
- *(HTREEITEM *)&rect = HITEM(item);
+ TVGetItemRectParam param;
// true means to get rect for just the text, not the whole line
- if ( !::SendMessage(GetHwnd(), TVM_GETITEMRECT, true, (LPARAM)&rect) )
+ if ( !wxTreeView_GetItemRect(GetHwnd(), HITEM(item), param, TRUE) )
{
// if TVM_GETITEMRECT returned false, then the item is definitely not
// visible (because its parent is not expanded)
// however if it returned true, the item might still be outside the
// currently visible part of the tree, test for it (notice that partly
// visible means visible here)
- return rect.bottom > 0 && rect.top < GetClientSize().y;
+ return param.rect.bottom > 0 && param.rect.top < GetClientSize().y;
}
bool wxTreeCtrl::ItemHasChildren(const wxTreeItemId& item) const
{
wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
+ if ( IS_VIRTUAL_ROOT(item) )
+ {
+ wxTreeItemIdValue cookie;
+ return GetFirstChild(item, cookie).IsOk();
+ }
+
wxTreeViewItem tvItem(item, TVIF_CHILDREN);
DoGetItem(&tvItem);
wxTreeItemId wxTreeCtrl::GetSelection() const
{
- wxCHECK_MSG( !(m_windowStyle & wxTR_MULTIPLE), wxTreeItemId(),
+ wxCHECK_MSG( !HasFlag(wxTR_MULTIPLE), wxTreeItemId(),
wxT("this only works with single selection controls") );
+ return GetFocusedItem();
+}
+
+wxTreeItemId wxTreeCtrl::GetFocusedItem() const
+{
return wxTreeItemId(TreeView_GetSelection(GetHwnd()));
}
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
wxASSERT_MSG( IsVisible(item), wxT("The item you call GetNextVisible() for must be visible itself!"));
- return wxTreeItemId(TreeView_GetNextVisible(GetHwnd(), HITEM(item)));
+ wxTreeItemId next(TreeView_GetNextVisible(GetHwnd(), HITEM(item)));
+ if ( next.IsOk() && !IsVisible(next) )
+ {
+ // Win32 considers that any non-collapsed item is visible while we want
+ // to return only really visible items
+ next.Unset();
+ }
+
+ return next;
}
wxTreeItemId wxTreeCtrl::GetPrevVisible(const wxTreeItemId& item) const
wxCHECK_MSG( item.IsOk(), wxTreeItemId(), wxT("invalid tree item") );
wxASSERT_MSG( IsVisible(item), wxT("The item you call GetPrevVisible() for must be visible itself!"));
- return wxTreeItemId(TreeView_GetPrevVisible(GetHwnd(), HITEM(item)));
+ wxTreeItemId prev(TreeView_GetPrevVisible(GetHwnd(), HITEM(item)));
+ if ( prev.IsOk() && !IsVisible(prev) )
+ {
+ // just as above, Win32 function will happily return the previous item
+ // in the tree for the first visible item too
+ prev.Unset();
+ }
+
+ return prev;
}
// ----------------------------------------------------------------------------
// multiple selections emulation
// ----------------------------------------------------------------------------
-bool wxTreeCtrl::IsItemChecked(const wxTreeItemId& item) const
-{
- wxCHECK_MSG( item.IsOk(), false, wxT("invalid tree item") );
-
- // receive the desired information.
- wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
- DoGetItem(&tvItem);
-
- // state image indices are 1 based
- return ((tvItem.state >> 12) - 1) == 1;
-}
-
-void wxTreeCtrl::SetItemCheck(const wxTreeItemId& item, bool check)
-{
- wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
-
- // receive the desired information.
- wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
-
- DoGetItem(&tvItem);
-
- // state images are one-based
- tvItem.state = (check ? 2 : 1) << 12;
-
- DoSetItem(&tvItem);
-}
-
size_t wxTreeCtrl::GetSelections(wxArrayTreeItemIds& selections) const
{
TraverseSelections selector(this, selections);
{
wxCHECK_MSG( parent.IsOk() || !TreeView_GetRoot(GetHwnd()),
wxTreeItemId(),
- _T("can't have more than one root in the tree") );
+ wxT("can't have more than one root in the tree") );
TV_INSERTSTRUCT tvIns;
tvIns.hParent = HITEM(parent);
if ( !text.empty() )
{
mask |= TVIF_TEXT;
- tvIns.item.pszText = (wxChar *)text.wx_str(); // cast is ok
+ tvIns.item.pszText = wxMSW_CONV_LPTSTR(text);
}
else
{
tvIns.item.lParam = (LPARAM)param;
tvIns.item.mask = mask;
+ // don't use the hack below for the children of hidden root: this results
+ // in a crash inside comctl32.dll when we call TreeView_GetItemRect()
+ const bool firstChild = !IsHiddenRoot(parent) &&
+ !TreeView_GetChild(GetHwnd(), HITEM(parent));
+
HTREEITEM id = TreeView_InsertItem(GetHwnd(), &tvIns);
if ( id == 0 )
{
wxLogLastError(wxT("TreeView_InsertItem"));
}
+ // apparently some Windows versions (2000 and XP are reported to do this)
+ // sometimes don't refresh the tree after adding the first child and so we
+ // need this to make the "[+]" appear
+ if ( firstChild )
+ {
+ TVGetItemRectParam param;
+
+ wxTreeView_GetItemRect(GetHwnd(), HITEM(parent), param, FALSE);
+ ::InvalidateRect(GetHwnd(), ¶m.rect, FALSE);
+ }
+
// associate the application tree item with Win32 tree item handle
param->SetItem(id);
{
if ( HasFlag(wxTR_HIDE_ROOT) )
{
- wxASSERT_MSG( !m_pVirtualRoot, _T("tree can have only a single root") );
+ wxASSERT_MSG( !m_pVirtualRoot, wxT("tree can have only a single root") );
// create a virtual root item, the parent for all the others
wxTreeItemParam *param = new wxTreeItemParam;
// 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") );
+ wxASSERT_MSG( index == 0, wxT("bad index in wxTreeCtrl::InsertItem") );
}
return DoInsertAfter(parent, idPrev, text, image, selectedImage, data);
void wxTreeCtrl::Delete(const wxTreeItemId& item)
{
- if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) )
+ // unlock tree selections on vista, without this the
+ // tree ctrl will eventually crash after item deletion
+ TreeItemUnlocker unlock_all;
+
+ if ( HasFlag(wxTR_MULTIPLE) )
+ {
+ bool selected = IsSelected(item);
+ wxTreeItemId next;
+
+ if ( selected )
+ {
+ next = TreeView_GetNextVisible(GetHwnd(), HITEM(item));
+
+ if ( !next.IsOk() )
+ {
+ next = TreeView_GetPrevVisible(GetHwnd(), HITEM(item));
+ }
+ }
+
+ {
+ TempSetter set(m_changingSelection);
+ if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) )
+ {
+ wxLogLastError(wxT("TreeView_DeleteItem"));
+ return;
+ }
+ }
+
+ if ( !selected )
+ {
+ return;
+ }
+
+ if ( item == m_htSelStart )
+ m_htSelStart.Unset();
+
+ if ( item == m_htClickedItem )
+ m_htClickedItem.Unset();
+
+ if ( next.IsOk() )
+ {
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING, this, next);
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED, this, next);
+ (void)HandleTreeEvent(changedEvent);
+ }
+ else
+ {
+ DoUnselectItem(next);
+ ClearFocusedItem();
+ }
+ }
+ }
+ else
{
- wxLogLastError(wxT("TreeView_DeleteItem"));
+ if ( !TreeView_DeleteItem(GetHwnd(), HITEM(item)) )
+ {
+ wxLogLastError(wxT("TreeView_DeleteItem"));
+ }
}
}
// delete all children (but don't delete the item itself)
void wxTreeCtrl::DeleteChildren(const wxTreeItemId& item)
{
+ // unlock tree selections on vista for the duration of this call
+ TreeItemUnlocker unlock_all;
+
wxTreeItemIdValue cookie;
wxArrayTreeItemIds children;
size_t nCount = children.Count();
for ( size_t n = 0; n < nCount; n++ )
{
- if ( !TreeView_DeleteItem(GetHwnd(), HITEM(children[n])) )
- {
- wxLogLastError(wxT("TreeView_DeleteItem"));
- }
+ Delete(children[n]);
}
}
void wxTreeCtrl::DeleteAllItems()
{
+ // unlock tree selections on vista for the duration of this call
+ TreeItemUnlocker unlock_all;
+
+ // invalidate all the items we store as they're going to become invalid
+ m_htSelStart =
+ m_htClickedItem = wxTreeItemId();
+
// delete the "virtual" root item.
if ( GET_VIRTUAL_ROOT() )
{
tvItem.state = 0;
DoSetItem(&tvItem);
- if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) != 0 )
+ if ( IsExpanded(item) )
+ {
+ wxTreeEvent event(wxEVT_TREE_ITEM_COLLAPSING,
+ this, wxTreeItemId(item));
+
+ if ( !IsTreeEventAllowed(event) )
+ return;
+ }
+
+ if ( TreeView_Expand(GetHwnd(), HITEM(item), flag) )
{
- // note that the {EXPAND|COLLAPS}ING event is sent by TreeView_Expand()
- // itself
- wxTreeEvent event(gs_expandEvents[IsExpanded(item) ? IDX_EXPAND
- : IDX_COLLAPSE]
- [IDX_DONE],
- this, item);
- (void)GetEventHandler()->ProcessEvent(event);
+ if ( IsExpanded(item) )
+ return;
+
+ wxTreeEvent event(wxEVT_TREE_ITEM_COLLAPSED, this, item);
+ (void)HandleTreeEvent(event);
}
//else: change didn't took place, so do nothing at all
}
void wxTreeCtrl::Unselect()
{
- wxASSERT_MSG( !(m_windowStyle & wxTR_MULTIPLE),
+ wxASSERT_MSG( !HasFlag(wxTR_MULTIPLE),
wxT("doesn't make sense, may be you want UnselectAll()?") );
- // just remove the selection
- SelectItem(wxTreeItemId());
-}
+ // the current focus
+ HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd());
-void wxTreeCtrl::UnselectAll()
-{
- if ( m_windowStyle & wxTR_MULTIPLE )
+ if ( !htFocus )
+ {
+ return;
+ }
+
+ if ( HasFlag(wxTR_MULTIPLE) )
{
- wxArrayTreeItemIds selections;
- size_t count = GetSelections(selections);
- for ( size_t n = 0; n < count; n++ )
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, wxTreeItemId());
+ changingEvent.m_itemOld = htFocus;
+
+ if ( IsTreeEventAllowed(changingEvent) )
{
- ::UnselectItem(GetHwnd(), HITEM(selections[n]));
- }
+ ClearFocusedItem();
- m_htSelStart.Unset();
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, wxTreeItemId());
+ changedEvent.m_itemOld = htFocus;
+ (void)HandleTreeEvent(changedEvent);
+ }
}
else
{
- // just remove the selection
- Unselect();
+ ClearFocusedItem();
}
}
-void wxTreeCtrl::SelectItem(const wxTreeItemId& item, bool select)
+void wxTreeCtrl::DoUnselectAll()
{
- wxCHECK_RET( !IsHiddenRoot(item), _T("can't select hidden root item") );
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
- wxASSERT_MSG( select || HasFlag(wxTR_MULTIPLE),
- _T("SelectItem(false) works only for multiselect") );
+ for ( size_t n = 0; n < count; n++ )
+ {
+ DoUnselectItem(selections[n]);
+ }
+
+ m_htSelStart.Unset();
+}
- wxTreeEvent event(wxEVT_COMMAND_TREE_SEL_CHANGING, this, item);
- if ( !GetEventHandler()->ProcessEvent(event) || event.IsAllowed() )
+void wxTreeCtrl::UnselectAll()
+{
+ if ( HasFlag(wxTR_MULTIPLE) )
{
- if ( !::SelectItem(GetHwnd(), HITEM(item), select) )
- {
- wxLogLastError(wxT("TreeView_SelectItem"));
- }
- else // ok
+ HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+ if ( !htFocus ) return;
+
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING, this);
+ changingEvent.m_itemOld = htFocus;
+
+ if ( IsTreeEventAllowed(changingEvent) )
{
- event.SetEventType(wxEVT_COMMAND_TREE_SEL_CHANGED);
- (void)GetEventHandler()->ProcessEvent(event);
+ DoUnselectAll();
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED, this);
+ changedEvent.m_itemOld = htFocus;
+ (void)HandleTreeEvent(changedEvent);
}
}
- //else: program vetoed the change
+ else
+ {
+ Unselect();
+ }
}
-void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
+void wxTreeCtrl::DoSelectChildren(const wxTreeItemId& parent)
{
- wxCHECK_RET( !IsHiddenRoot(item), _T("can't show hidden root item") );
+ DoUnselectAll();
- // no error return
- TreeView_EnsureVisible(GetHwnd(), HITEM(item));
+ wxTreeItemIdValue cookie;
+ wxTreeItemId child = GetFirstChild(parent, cookie);
+ while ( child.IsOk() )
+ {
+ DoSelectItem(child, true);
+ child = GetNextChild(child, cookie);
+ }
}
-void wxTreeCtrl::ScrollTo(const wxTreeItemId& item)
+void wxTreeCtrl::SelectChildren(const wxTreeItemId& parent)
{
- if ( !TreeView_SelectSetFirstVisible(GetHwnd(), HITEM(item)) )
+ wxCHECK_RET( HasFlag(wxTR_MULTIPLE),
+ "this only works with multiple selection controls" );
+
+ HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING, this);
+ changingEvent.m_itemOld = htFocus;
+
+ if ( IsTreeEventAllowed(changingEvent) )
{
- wxLogLastError(wxT("TreeView_SelectSetFirstVisible"));
+ DoSelectChildren(parent);
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED, this);
+ changedEvent.m_itemOld = htFocus;
+ (void)HandleTreeEvent(changedEvent);
}
}
-wxTextCtrl *wxTreeCtrl::GetEditControl() const
+void wxTreeCtrl::DoSelectItem(const wxTreeItemId& item, bool select)
{
- return m_textCtrl;
+ TempSetter set(m_changingSelection);
+
+ ::SelectItem(GetHwnd(), HITEM(item), select);
}
-void wxTreeCtrl::DeleteTextCtrl()
+void wxTreeCtrl::SelectItem(const wxTreeItemId& item, bool select)
{
- if ( m_textCtrl )
+ wxCHECK_RET( !IsHiddenRoot(item), wxT("can't select hidden root item") );
+
+ if ( select == IsSelected(item) )
{
- // 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);
- }
+ // nothing to do, the item is already in the requested state
+ return;
+ }
- m_textCtrl->UnsubclassWin();
- m_textCtrl->SetHWND(0);
- delete m_textCtrl;
- m_textCtrl = NULL;
+ if ( HasFlag(wxTR_MULTIPLE) )
+ {
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING, this, item);
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ HTREEITEM htFocus = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+ DoSelectItem(item, select);
+
+ if ( !htFocus )
+ {
+ SetFocusedItem(item);
+ }
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, item);
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else // single selection
+ {
+ wxTreeItemId itemOld, itemNew;
+ if ( select )
+ {
+ itemOld = GetSelection();
+ itemNew = item;
+ }
+ else // deselecting the currently selected item
+ {
+ itemOld = item;
+ // leave itemNew invalid
+ }
+
+ // Recent versions of comctl32.dll send TVN_SELCHANG{ED,ING} events
+ // when we call TreeView_SelectItem() but apparently some old ones did
+ // not so send the events ourselves and ignore those generated by
+ // TreeView_SelectItem() if m_changingSelection is set.
+ wxTreeEvent
+ changingEvent(wxEVT_TREE_SEL_CHANGING, this, itemNew);
+ changingEvent.SetOldItem(itemOld);
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ TempSetter set(m_changingSelection);
+
+ if ( !TreeView_SelectItem(GetHwnd(), HITEM(itemNew)) )
+ {
+ wxLogLastError(wxT("TreeView_SelectItem"));
+ }
+ else // ok
+ {
+ ::SetFocus(GetHwnd(), HITEM(item));
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, itemNew);
+ changedEvent.SetOldItem(itemOld);
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ //else: program vetoed the change
+ }
+}
+
+void wxTreeCtrl::EnsureVisible(const wxTreeItemId& item)
+{
+ wxCHECK_RET( !IsHiddenRoot(item), wxT("can't show hidden root item") );
+
+ // no error return
+ TreeView_EnsureVisible(GetHwnd(), HITEM(item));
+}
+
+void wxTreeCtrl::ScrollTo(const wxTreeItemId& item)
+{
+ if ( !TreeView_SelectSetFirstVisible(GetHwnd(), HITEM(item)) )
+ {
+ wxLogLastError(wxT("TreeView_SelectSetFirstVisible"));
+ }
+}
+
+wxTextCtrl *wxTreeCtrl::GetEditControl() const
+{
+ 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);
+ wxDELETE(m_textCtrl);
m_idEdited.Unset();
}
wxTextCtrl *wxTreeCtrl::EditLabel(const wxTreeItemId& item,
wxClassInfo *textControlClass)
{
- wxASSERT( textControlClass->IsKindOf(CLASSINFO(wxTextCtrl)) );
+ wxASSERT( textControlClass->IsKindOf(wxCLASSINFO(wxTextCtrl)) );
DeleteTextCtrl();
// returned false
if ( !hWnd )
{
- delete m_textCtrl;
- m_textCtrl = NULL;
+ wxDELETE(m_textCtrl);
return NULL;
}
wxRect& rect,
bool textOnly) const
{
- RECT rc;
-
// Virtual root items have no bounding rectangle
if ( IS_VIRTUAL_ROOT(item) )
{
return false;
}
- if ( TreeView_GetItemRect(GetHwnd(), HITEM(item),
- &rc, textOnly) )
+ TVGetItemRectParam param;
+
+ if ( wxTreeView_GetItemRect(GetHwnd(), HITEM(item), param, textOnly) )
{
- rect = wxRect(wxPoint(rc.left, rc.top), wxPoint(rc.right, rc.bottom));
+ rect = wxRect(wxPoint(param.rect.left, param.rect.top),
+ wxPoint(param.rect.right, param.rect.bottom));
return true;
}
}
}
+void wxTreeCtrl::ClearFocusedItem()
+{
+ TempSetter set(m_changingSelection);
+
+ if ( !TreeView_SelectItem(GetHwnd(), 0) )
+ {
+ wxLogLastError(wxT("TreeView_SelectItem"));
+ }
+}
+
+void wxTreeCtrl::SetFocusedItem(const wxTreeItemId& item)
+{
+ wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+
+ TempSetter set(m_changingSelection);
+
+ ::SetFocus(GetHwnd(), HITEM(item));
+}
+
+void wxTreeCtrl::DoUnselectItem(const wxTreeItemId& item)
+{
+ TempSetter set(m_changingSelection);
+
+ ::UnselectItem(GetHwnd(), HITEM(item));
+}
+
+void wxTreeCtrl::DoToggleItemSelection(const wxTreeItemId& item)
+{
+ TempSetter set(m_changingSelection);
+
+ ::ToggleItemSelection(GetHwnd(), HITEM(item));
+}
+
// ----------------------------------------------------------------------------
// sorting stuff
// ----------------------------------------------------------------------------
// may be why as if you don't use the DECLARE_CLASS/IMPLEMENT_CLASS
// combo for your derived wxTreeCtrl if will sort without
// OnCompareItems
- if ( GetClassInfo() == CLASSINFO(wxTreeCtrl) )
+ if ( GetClassInfo() == wxCLASSINFO(wxTreeCtrl) )
{
TreeView_SortChildren(GetHwnd(), HITEM(item), 0);
}
{
if ( msg->message == WM_KEYDOWN )
{
- if ( msg->wParam == VK_RETURN )
+ // Only eat VK_RETURN if not being used by the application in
+ // conjunction with modifiers
+ if ( (msg->wParam == VK_RETURN) && !wxIsAnyModifierDown() )
{
- // we need VK_RETURN to generate wxEVT_COMMAND_TREE_ITEM_ACTIVATED
+ // we need VK_RETURN to generate wxEVT_TREE_ITEM_ACTIVATED
return false;
}
}
return wxTreeCtrlBase::MSWShouldPreProcessMessage(msg);
}
-bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id)
+bool wxTreeCtrl::MSWCommand(WXUINT cmd, WXWORD id_)
{
+ const int id = (signed short)id_;
+
if ( cmd == EN_UPDATE )
{
- wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, id);
+ wxCommandEvent event(wxEVT_TEXT, id);
event.SetEventObject( this );
ProcessCommand(event);
}
return true;
}
+bool wxTreeCtrl::MSWIsOnItem(unsigned flags) const
+{
+ unsigned mask = TVHT_ONITEM;
+ if ( HasFlag(wxTR_FULL_ROW_HIGHLIGHT) )
+ mask |= TVHT_ONITEMINDENT | TVHT_ONITEMRIGHT;
+
+ return (flags & mask) != 0;
+}
+
+bool wxTreeCtrl::MSWHandleSelectionKey(unsigned vkey)
+{
+ const bool bCtrl = wxIsCtrlDown();
+ const bool bShift = wxIsShiftDown();
+ const HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+
+ switch ( vkey )
+ {
+ case VK_RETURN:
+ case VK_SPACE:
+ if ( !htSel )
+ break;
+
+ if ( vkey != VK_RETURN && bCtrl )
+ {
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, htSel);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoToggleItemSelection(wxTreeItemId(htSel));
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, htSel);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else
+ {
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+
+ if ( count != 1 || HITEM(selections[0]) != htSel )
+ {
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, htSel);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(wxTreeItemId(htSel));
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, htSel);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ break;
+
+ case VK_UP:
+ case VK_DOWN:
+ if ( !bCtrl && !bShift )
+ {
+ wxArrayTreeItemIds selections;
+ wxTreeItemId next;
+
+ if ( htSel )
+ {
+ next = vkey == VK_UP
+ ? TreeView_GetPrevVisible(GetHwnd(), htSel)
+ : TreeView_GetNextVisible(GetHwnd(), htSel);
+ }
+ else
+ {
+ next = GetRootItem();
+
+ if ( IsHiddenRoot(next) )
+ next = TreeView_GetChild(GetHwnd(), HITEM(next));
+ }
+
+ if ( !next.IsOk() )
+ {
+ break;
+ }
+
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(next);
+ SetFocusedItem(next);
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ else if ( htSel )
+ {
+ wxTreeItemId next = vkey == VK_UP
+ ? TreeView_GetPrevVisible(GetHwnd(), htSel)
+ : TreeView_GetNextVisible(GetHwnd(), htSel);
+
+ if ( !next.IsOk() )
+ {
+ break;
+ }
+
+ if ( !m_htSelStart )
+ {
+ m_htSelStart = htSel;
+ }
+
+ if ( bShift && SelectRange(GetHwnd(), HITEM(m_htSelStart), HITEM(next),
+ SR_UNSELECT_OTHERS | SR_SIMULATE) )
+ {
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING, this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ SelectRange(GetHwnd(), HITEM(m_htSelStart), HITEM(next),
+ SR_UNSELECT_OTHERS);
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED, this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+
+ SetFocusedItem(next);
+ }
+ break;
+
+ case VK_LEFT:
+ if ( HasChildren(htSel) && IsExpanded(htSel) )
+ {
+ Collapse(htSel);
+ }
+ else
+ {
+ wxTreeItemId next = GetItemParent(htSel);
+
+ if ( next.IsOk() && !IsHiddenRoot(next) )
+ {
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(next);
+ SetFocusedItem(next);
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ break;
+
+ case VK_RIGHT:
+ if ( !IsVisible(htSel) )
+ {
+ EnsureVisible(htSel);
+ }
+
+ if ( !HasChildren(htSel) )
+ break;
+
+ if ( !IsExpanded(htSel) )
+ {
+ Expand(htSel);
+ }
+ else
+ {
+ wxTreeItemId next = TreeView_GetChild(GetHwnd(), htSel);
+
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING, this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(next);
+ SetFocusedItem(next);
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED, this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ break;
+
+ case VK_HOME:
+ case VK_END:
+ {
+ wxTreeItemId next = GetRootItem();
+
+ if ( IsHiddenRoot(next) )
+ {
+ next = TreeView_GetChild(GetHwnd(), HITEM(next));
+ }
+
+ if ( !next.IsOk() )
+ break;
+
+ if ( vkey == VK_END )
+ {
+ for ( ;; )
+ {
+ wxTreeItemId nextTemp = TreeView_GetNextVisible(
+ GetHwnd(), HITEM(next));
+
+ if ( !nextTemp.IsOk() )
+ break;
+
+ next = nextTemp;
+ }
+ }
+
+ if ( htSel == HITEM(next) )
+ break;
+
+ if ( bShift )
+ {
+ if ( !m_htSelStart )
+ {
+ m_htSelStart = htSel;
+ }
+
+ if ( SelectRange(GetHwnd(),
+ HITEM(m_htSelStart), HITEM(next),
+ SR_UNSELECT_OTHERS | SR_SIMULATE) )
+ {
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ SelectRange(GetHwnd(),
+ HITEM(m_htSelStart), HITEM(next),
+ SR_UNSELECT_OTHERS);
+ SetFocusedItem(next);
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ else // no Shift
+ {
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(next);
+ SetFocusedItem(next);
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ break;
+
+ case VK_PRIOR:
+ case VK_NEXT:
+ if ( bCtrl )
+ {
+ wxTreeItemId firstVisible = GetFirstVisibleItem();
+ size_t visibleCount = TreeView_GetVisibleCount(GetHwnd());
+ wxTreeItemId nextAdjacent = (vkey == VK_PRIOR) ?
+ TreeView_GetPrevVisible(GetHwnd(), HITEM(firstVisible)) :
+ TreeView_GetNextVisible(GetHwnd(), HITEM(firstVisible));
+
+ if ( !nextAdjacent )
+ {
+ break;
+ }
+
+ wxTreeItemId nextStart = firstVisible;
+
+ for ( size_t n = 1; n < visibleCount; n++ )
+ {
+ wxTreeItemId nextTemp = (vkey == VK_PRIOR) ?
+ TreeView_GetPrevVisible(GetHwnd(), HITEM(nextStart)) :
+ TreeView_GetNextVisible(GetHwnd(), HITEM(nextStart));
+
+ if ( nextTemp.IsOk() )
+ {
+ nextStart = nextTemp;
+ }
+ else
+ {
+ break;
+ }
+ }
+
+ EnsureVisible(nextStart);
+
+ if ( vkey == VK_NEXT )
+ {
+ wxTreeItemId nextEnd = nextStart;
+
+ for ( size_t n = 1; n < visibleCount; n++ )
+ {
+ wxTreeItemId nextTemp =
+ TreeView_GetNextVisible(GetHwnd(), HITEM(nextEnd));
+
+ if ( nextTemp.IsOk() )
+ {
+ nextEnd = nextTemp;
+ }
+ else
+ {
+ break;
+ }
+ }
+
+ EnsureVisible(nextEnd);
+ }
+ }
+ else // no Ctrl
+ {
+ size_t visibleCount = TreeView_GetVisibleCount(GetHwnd());
+ wxTreeItemId nextAdjacent = (vkey == VK_PRIOR) ?
+ TreeView_GetPrevVisible(GetHwnd(), htSel) :
+ TreeView_GetNextVisible(GetHwnd(), htSel);
+
+ if ( !nextAdjacent )
+ {
+ break;
+ }
+
+ wxTreeItemId next(htSel);
+
+ for ( size_t n = 1; n < visibleCount; n++ )
+ {
+ wxTreeItemId nextTemp = vkey == VK_PRIOR ?
+ TreeView_GetPrevVisible(GetHwnd(), HITEM(next)) :
+ TreeView_GetNextVisible(GetHwnd(), HITEM(next));
+
+ if ( !nextTemp.IsOk() )
+ break;
+
+ next = nextTemp;
+ }
+
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, next);
+ changingEvent.m_itemOld = htSel;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ m_htSelStart.Unset();
+ DoSelectItem(next);
+ SetFocusedItem(next);
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, next);
+ changedEvent.m_itemOld = htSel;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ break;
+
+ default:
+ return false;
+ }
+
+ return true;
+}
+
+bool wxTreeCtrl::MSWHandleTreeKeyDownEvent(WXWPARAM wParam, WXLPARAM lParam)
+{
+ wxTreeEvent keyEvent(wxEVT_TREE_KEY_DOWN, this);
+ keyEvent.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN, wParam, lParam);
+
+ bool processed = HandleTreeEvent(keyEvent);
+
+ // generate a separate event for Space/Return
+ if ( !wxIsCtrlDown() && !wxIsShiftDown() && !wxIsAltDown() &&
+ ((wParam == VK_SPACE) || (wParam == VK_RETURN)) )
+ {
+ const HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+ if ( htSel )
+ {
+ wxTreeEvent activatedEvent(wxEVT_TREE_ITEM_ACTIVATED,
+ this, htSel);
+ (void)HandleTreeEvent(activatedEvent);
+ }
+ }
+
+ return processed;
+}
+
// we hook into WndProc to process WM_MOUSEMOVE/WM_BUTTONUP messages - as we
// only do it during dragging, minimize wxWin overhead (this is important for
// WM_MOUSEMOVE as they're a lot of them) by catching Windows messages directly
// instead of passing by wxWin events
-WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
+WXLRESULT
+wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
{
bool processed = false;
WXLRESULT rc = 0;
bool isMultiple = HasFlag(wxTR_MULTIPLE);
- // This message is sent after a right-click, or when the "menu" key is pressed
if ( nMsg == WM_CONTEXTMENU )
{
int x = GET_X_LPARAM(lParam),
TV_HITTESTINFO tvhti;
tvhti.pt.x = pt.x;
tvhti.pt.y = pt.y;
+
if ( TreeView_HitTest(GetHwnd(), &tvhti) )
item = wxTreeItemId(tvhti.hItem);
}
// create the event
- wxTreeEvent event(wxEVT_COMMAND_TREE_ITEM_MENU, this, item);
+ if ( item.IsOk() )
+ {
+ wxTreeEvent event(wxEVT_TREE_ITEM_MENU, this, item);
- event.m_pointDrag = pt;
+ event.m_pointDrag = pt;
- if ( GetEventHandler()->ProcessEvent(event) )
- processed = true;
- //else: continue with generating wxEVT_CONTEXT_MENU in base class code
+ if ( HandleTreeEvent(event) )
+ processed = true;
+ //else: continue with generating wxEVT_CONTEXT_MENU in base class code
+ }
}
else if ( (nMsg >= WM_MOUSEFIRST) && (nMsg <= WM_MOUSELAST) )
{
tvht.pt.x = x;
tvht.pt.y = y;
- HTREEITEM htItem = TreeView_HitTest(GetHwnd(), &tvht);
+ HTREEITEM htOldItem = TreeView_GetSelection(GetHwnd());
+ HTREEITEM htItem = TreeView_HitTest(GetHwnd(), &tvht);
+
+ switch ( nMsg )
+ {
+ case WM_LBUTTONDOWN:
+ if ( !isMultiple )
+ break;
+
+ m_htClickedItem.Unset();
+
+ if ( !MSWIsOnItem(tvht.flags) )
+ {
+ if ( tvht.flags & TVHT_ONITEMBUTTON )
+ {
+ // either it's going to be handled by user code or
+ // we're going to use it ourselves to toggle the
+ // branch, in either case don't pass it to the base
+ // class which would generate another mouse click event
+ // for it even though it's already handled here
+ processed = true;
+ SetFocus();
+
+ if ( !HandleMouseEvent(nMsg, x, y, wParam) )
+ {
+ if ( !IsExpanded(htItem) )
+ {
+ Expand(htItem);
+ }
+ else
+ {
+ Collapse(htItem);
+ }
+ }
+ }
+
+ m_focusLost = false;
+ break;
+ }
- switch ( nMsg )
- {
- case WM_LBUTTONDOWN:
- if ( htItem && isMultiple && (tvht.flags & TVHT_ONITEM) != 0 )
- {
- m_htClickedItem = (WXHTREEITEM) htItem;
- m_ptClick = wxPoint(x, y);
+ processed = true;
+ SetFocus();
+ m_htClickedItem = (WXHTREEITEM) htItem;
+ m_ptClick = wxPoint(x, y);
- if ( wParam & MK_CONTROL )
+ if ( wParam & MK_CONTROL )
+ {
+ if ( HandleMouseEvent(nMsg, x, y, wParam) )
{
- SetFocus();
+ m_htClickedItem.Unset();
+ break;
+ }
+
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
// toggle selected state
- ToggleItemSelection(htItem);
+ DoToggleItemSelection(wxTreeItemId(htItem));
- ::SetFocus(GetHwnd(), htItem);
+ SetFocusedItem(wxTreeItemId(htItem));
// reset on any click without Shift
m_htSelStart.Unset();
- processed = true;
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
}
- else if ( wParam & MK_SHIFT )
+ }
+ else if ( wParam & MK_SHIFT )
+ {
+ if ( HandleMouseEvent(nMsg, x, y, wParam) )
{
- // this selects all items between the starting one and
- // the current
-
- if ( !m_htSelStart )
- {
- // take the focused item
- m_htSelStart = TreeView_GetSelection(GetHwnd());
- }
+ m_htClickedItem.Unset();
+ break;
+ }
- if ( m_htSelStart )
- SelectRange(GetHwnd(), HITEM(m_htSelStart), htItem,
- !(wParam & MK_CONTROL));
- else
- ::SelectItem(GetHwnd(), htItem);
+ int srFlags = 0;
+ bool willChange = true;
- ::SetFocus(GetHwnd(), htItem);
+ if ( !(wParam & MK_CONTROL) )
+ {
+ srFlags |= SR_UNSELECT_OTHERS;
+ }
- processed = true;
+ if ( !m_htSelStart )
+ {
+ // take the focused item
+ m_htSelStart = htOldItem;
}
- else // normal click
+ else
{
- // avoid doing anything if we click on the only
- // currently selected item
+ willChange = SelectRange(GetHwnd(), HITEM(m_htSelStart),
+ htItem, srFlags | SR_SIMULATE);
+ }
- SetFocus();
+ if ( willChange )
+ {
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
- wxArrayTreeItemIds selections;
- size_t count = GetSelections(selections);
- if ( count == 0 ||
- count > 1 ||
- HITEM(selections[0]) != htItem )
+ if ( IsTreeEventAllowed(changingEvent) )
{
- // clear the previously selected items, if the
- // user clicked outside of the present selection.
- // otherwise, perform the deselection on mouse-up.
- // this allows multiple drag and drop to work.
-
- if (!IsItemSelected(GetHwnd(), htItem))
+ // this selects all items between the starting one
+ // and the current
+ if ( m_htSelStart )
+ {
+ SelectRange(GetHwnd(), HITEM(m_htSelStart),
+ htItem, srFlags);
+ }
+ else
{
- UnselectAll();
+ DoSelectItem(wxTreeItemId(htItem));
+ }
+
+ SetFocusedItem(wxTreeItemId(htItem));
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
+ }
+ else // normal click
+ {
+ // avoid doing anything if we click on the only
+ // currently selected item
+
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+
+ if ( count == 0 ||
+ count > 1 ||
+ HITEM(selections[0]) != htItem )
+ {
+ if ( HandleMouseEvent(nMsg, x, y, wParam) )
+ {
+ m_htClickedItem.Unset();
+ break;
+ }
- // prevent the click from starting in-place editing
- // which should only happen if we click on the
- // already selected item (and nothing else is
- // selected)
+ // clear the previously selected items, if the user
+ // clicked outside of the present selection, otherwise,
+ // perform the deselection on mouse-up, this allows
+ // multiple drag and drop to work.
+ if ( !IsItemSelected(GetHwnd(), htItem))
+ {
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
- TreeView_SelectItem(GetHwnd(), 0);
- ::SelectItem(GetHwnd(), htItem);
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(wxTreeItemId(htItem));
+ SetFocusedItem(wxTreeItemId(htItem));
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
}
- ::SetFocus(GetHwnd(), htItem);
- processed = true;
}
+ else
+ {
+ SetFocusedItem(wxTreeItemId(htItem));
+ m_mouseUpDeselect = true;
+ }
+ }
+ else // click on a single selected item
+ {
+ // don't interfere with the default processing in
+ // WM_MOUSEMOVE handler below as the default window
+ // proc will start the drag itself if we let have
+ // WM_LBUTTONDOWN
+ m_htClickedItem.Unset();
- // reset on any click without Shift
- m_htSelStart.Unset();
+ // prevent in-place editing from starting if focus lost
+ // since previous click
+ if ( m_focusLost )
+ {
+ ClearFocusedItem();
+ DoSelectItem(wxTreeItemId(htItem));
+ SetFocusedItem(wxTreeItemId(htItem));
+ }
+ else
+ {
+ processed = false;
+ }
+ }
+
+ // reset on any click without Shift
+ m_htSelStart.Unset();
+ }
+
+ m_focusLost = false;
+
+ // we consumed the event so we need to trigger state image
+ // click if needed
+ if ( processed )
+ {
+ if ( tvht.flags & TVHT_ONITEMSTATEICON )
+ {
+ m_triggerStateImageClick = true;
+ }
+ }
+ break;
+
+ case WM_RBUTTONDOWN:
+ if ( !isMultiple )
+ break;
+
+ processed = true;
+ SetFocus();
+
+ if ( HandleMouseEvent(nMsg, x, y, wParam) || !htItem )
+ {
+ break;
+ }
+
+ // default handler removes the highlight from the currently
+ // focused item when right mouse button is pressed on another
+ // one but keeps the remaining items highlighted, which is
+ // confusing, so override this default behaviour
+ if ( !IsItemSelected(GetHwnd(), htItem) )
+ {
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(wxTreeItemId(htItem));
+ SetFocusedItem(wxTreeItemId(htItem));
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
}
}
+
break;
case WM_MOUSEMOVE:
int cx = abs(m_ptClick.x - x);
int cy = abs(m_ptClick.y - y);
- if ( cx > GetSystemMetrics( SM_CXDRAG ) || cy > GetSystemMetrics( SM_CYDRAG ) )
+ if ( cx > ::GetSystemMetrics(SM_CXDRAG) ||
+ cy > ::GetSystemMetrics(SM_CYDRAG) )
{
- HWND pWnd = ::GetParent( GetHwnd() );
- if ( pWnd )
- {
- NM_TREEVIEW tv;
+ NM_TREEVIEW tv;
+ wxZeroMemory(tv);
- tv.hdr.hwndFrom = GetHwnd();
- tv.hdr.idFrom = ::GetWindowLong( GetHwnd(), GWL_ID );
- tv.hdr.code = TVN_BEGINDRAG;
+ tv.hdr.hwndFrom = GetHwnd();
+ tv.hdr.idFrom = ::GetWindowLong(GetHwnd(), GWL_ID);
+ tv.hdr.code = TVN_BEGINDRAG;
- tv.itemNew.hItem = HITEM(m_htClickedItem);
+ tv.itemNew.hItem = HITEM(m_htClickedItem);
- TVITEM tviAux;
- ZeroMemory(&tviAux, sizeof(tviAux));
- tviAux.hItem = HITEM(m_htClickedItem);
- tviAux.mask = TVIF_STATE | TVIF_PARAM;
- tviAux.stateMask = 0xffffffff;
- TreeView_GetItem( GetHwnd(), &tviAux );
- tv.itemNew.state = tviAux.state;
- tv.itemNew.lParam = tviAux.lParam;
+ TVITEM tviAux;
+ wxZeroMemory(tviAux);
- tv.ptDrag.x = x;
- tv.ptDrag.y = y;
+ tviAux.hItem = HITEM(m_htClickedItem);
+ tviAux.mask = TVIF_STATE | TVIF_PARAM;
+ tviAux.stateMask = 0xffffffff;
+ TreeView_GetItem(GetHwnd(), &tviAux);
- ::SendMessage( pWnd, WM_NOTIFY, tv.hdr.idFrom, (LPARAM)&tv );
- }
+ tv.itemNew.state = tviAux.state;
+ tv.itemNew.lParam = tviAux.lParam;
+
+ tv.ptDrag.x = x;
+ tv.ptDrag.y = y;
+
+ // do it before SendMessage() call below to avoid
+ // reentrancies here if there is another WM_MOUSEMOVE
+ // in the queue already
m_htClickedItem.Unset();
+
+ ::SendMessage(GetHwndOf(GetParent()), WM_NOTIFY,
+ tv.hdr.idFrom, (LPARAM)&tv );
+
+ // don't pass it to the default window proc, it would
+ // start dragging again
+ processed = true;
}
}
#endif // __WXWINCE__
+#if wxUSE_DRAGIMAGE
if ( m_dragImage )
{
m_dragImage->Move(wxPoint(x, y));
m_dragImage->Show();
}
}
+#endif // wxUSE_DRAGIMAGE
break;
case WM_LBUTTONUP:
-
- // facilitates multiple drag-and-drop
- if (htItem && isMultiple)
+ if ( isMultiple )
{
- wxArrayTreeItemIds selections;
- size_t count = GetSelections(selections);
-
- if (count > 1 &&
- !(wParam & MK_CONTROL) &&
- !(wParam & MK_SHIFT))
+ // deselect other items if needed
+ if ( htItem )
{
- UnselectAll();
- TreeView_SelectItem(GetHwnd(), htItem);
- ::SelectItem(GetHwnd(), htItem);
- ::SetFocus(GetHwnd(), htItem);
+ if ( m_mouseUpDeselect )
+ {
+ m_mouseUpDeselect = false;
+
+ wxTreeEvent changingEvent(wxEVT_TREE_SEL_CHANGING,
+ this, htItem);
+ changingEvent.m_itemOld = htOldItem;
+
+ if ( IsTreeEventAllowed(changingEvent) )
+ {
+ DoUnselectAll();
+ DoSelectItem(wxTreeItemId(htItem));
+ SetFocusedItem(wxTreeItemId(htItem));
+
+ wxTreeEvent changedEvent(wxEVT_TREE_SEL_CHANGED,
+ this, htItem);
+ changedEvent.m_itemOld = htOldItem;
+ (void)HandleTreeEvent(changedEvent);
+ }
+ }
}
+
m_htClickedItem.Unset();
+
+ if ( m_triggerStateImageClick )
+ {
+ if ( tvht.flags & TVHT_ONITEMSTATEICON )
+ {
+ wxTreeEvent event(wxEVT_TREE_STATE_IMAGE_CLICK,
+ this, htItem);
+ (void)HandleTreeEvent(event);
+
+ m_triggerStateImageClick = false;
+ processed = true;
+ }
+ }
+
+ if ( !m_dragStarted && MSWIsOnItem(tvht.flags) )
+ {
+ processed = true;
+ }
}
// fall through
case WM_RBUTTONUP:
+#if wxUSE_DRAGIMAGE
if ( m_dragImage )
{
m_dragImage->EndDrag();
- delete m_dragImage;
- m_dragImage = NULL;
+ wxDELETE(m_dragImage);
// generate the drag end event
- wxTreeEvent event(wxEVT_COMMAND_TREE_END_DRAG, this, htItem);
+ wxTreeEvent event(wxEVT_TREE_END_DRAG,
+ this, htItem);
event.m_pointDrag = wxPoint(x, y);
-
- (void)GetEventHandler()->ProcessEvent(event);
+ (void)HandleTreeEvent(event);
// if we don't do it, the tree seems to think that 2 items
// are selected simultaneously which is quite weird
TreeView_SelectDropTarget(GetHwnd(), 0);
}
+#endif // wxUSE_DRAGIMAGE
+
+ if ( isMultiple && nMsg == WM_RBUTTONUP )
+ {
+ // send NM_RCLICK
+ NMHDR nmhdr;
+ nmhdr.hwndFrom = GetHwnd();
+ nmhdr.idFrom = ::GetWindowLong(GetHwnd(), GWL_ID);
+ nmhdr.code = NM_RCLICK;
+ ::SendMessage(::GetParent(GetHwnd()), WM_NOTIFY,
+ nmhdr.idFrom, (LPARAM)&nmhdr);
+ processed = true;
+ }
+
+ m_dragStarted = false;
+
break;
}
}
- else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) && isMultiple )
+ else if ( (nMsg == WM_SETFOCUS || nMsg == WM_KILLFOCUS) )
{
- // the tree control greys out the selected item when it loses focus and
- // paints it as selected again when it regains it, but it won't do it
- // for the other items itself - help it
- wxArrayTreeItemIds selections;
- size_t count = GetSelections(selections);
- RECT rect;
- for ( size_t n = 0; n < count; n++ )
+ if ( isMultiple )
{
- // TreeView_GetItemRect() will return false if item is not visible,
- // which may happen perfectly well
- if ( TreeView_GetItemRect(GetHwnd(), HITEM(selections[n]),
- &rect, TRUE) )
+ // the tree control greys out the selected item when it loses focus
+ // and paints it as selected again when it regains it, but it won't
+ // do it for the other items itself - help it
+ wxArrayTreeItemIds selections;
+ size_t count = GetSelections(selections);
+ TVGetItemRectParam param;
+
+ for ( size_t n = 0; n < count; n++ )
{
- ::InvalidateRect(GetHwnd(), &rect, FALSE);
+ // TreeView_GetItemRect() will return false if item is not
+ // visible, which may happen perfectly well
+ if ( wxTreeView_GetItemRect(GetHwnd(), HITEM(selections[n]),
+ param, TRUE) )
+ {
+ ::InvalidateRect(GetHwnd(), ¶m.rect, FALSE);
+ }
}
}
+
+ if ( nMsg == WM_KILLFOCUS )
+ {
+ m_focusLost = true;
+ }
}
- else if ( nMsg == WM_KEYDOWN && isMultiple )
+ else if ( (nMsg == WM_KEYDOWN || nMsg == WM_SYSKEYDOWN) && isMultiple )
{
- bool bCtrl = wxIsCtrlDown(),
- bShift = wxIsShiftDown();
-
- HTREEITEM htSel = (HTREEITEM)TreeView_GetSelection(GetHwnd());
+ // normally we want to generate wxEVT_KEY_DOWN events from TVN_KEYDOWN
+ // notification but for the keys which can be used to change selection
+ // we need to do it from here so as to not apply the default behaviour
+ // if the events are handled by the user code
switch ( wParam )
{
+ case VK_RETURN:
case VK_SPACE:
- if ( bCtrl )
- {
- ToggleItemSelection(htSel);
- }
- else
- {
- UnselectAll();
-
- ::SelectItem(GetHwnd(), htSel);
- }
-
- processed = true;
- break;
-
case VK_UP:
case 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)
- TreeView_GetNextItem
- (
- GetHwnd(),
- htSel,
- wParam == VK_UP ? TVGN_PREVIOUSVISIBLE
- : TVGN_NEXTVISIBLE
- );
-
- if ( !htNext )
- {
- // at the top/bottom
- htNext = htSel;
- }
-
- if ( bShift )
- {
- if ( !m_htSelStart )
- m_htSelStart = htSel;
-
- SelectRange(GetHwnd(), HITEM(m_htSelStart), htNext);
- }
- else // bCtrl
- {
- // without changing selection
- ::SetFocus(GetHwnd(), htNext);
- }
-
- processed = true;
- }
- break;
-
+ case VK_LEFT:
+ case VK_RIGHT:
case VK_HOME:
case VK_END:
case VK_PRIOR:
case VK_NEXT:
- // TODO: handle Shift/Ctrl with these keys
- if ( !bCtrl && !bShift )
+ if ( !HandleKeyDown(wParam, lParam) &&
+ !MSWHandleTreeKeyDownEvent(wParam, lParam) )
{
- UnselectAll();
-
- m_htSelStart.Unset();
+ // use the key to update the selection if it was left
+ // unprocessed
+ MSWHandleSelectionKey(wParam);
}
+
+ // pretend that we did process it in any case as we already
+ // generated an event for it
+ processed = true;
+
+ //default: for all the other keys leave processed as false so that
+ // the tree control generates a TVN_KEYDOWN for us
}
+
}
else if ( nMsg == WM_COMMAND )
{
if ( wParam == VK_SPACE || wParam == VK_RETURN )
return 0;
}
+#if wxUSE_DRAGIMAGE
+ else if ( nMsg == WM_KEYDOWN )
+ {
+ if ( wParam == VK_ESCAPE )
+ {
+ if ( m_dragImage )
+ {
+ m_dragImage->EndDrag();
+ wxDELETE(m_dragImage);
+
+ // if we don't do it, the tree seems to think that 2 items
+ // are selected simultaneously which is quite weird
+ TreeView_SelectDropTarget(GetHwnd(), 0);
+ }
+ }
+ }
+#endif // wxUSE_DRAGIMAGE
return wxControl::MSWDefWindowProc(nMsg, wParam, lParam);
}
switch ( hdr->code )
{
case TVN_BEGINDRAG:
- eventType = wxEVT_COMMAND_TREE_BEGIN_DRAG;
+ eventType = wxEVT_TREE_BEGIN_DRAG;
// fall through
case TVN_BEGINRDRAG:
{
if ( eventType == wxEVT_NULL )
- eventType = wxEVT_COMMAND_TREE_BEGIN_RDRAG;
+ eventType = wxEVT_TREE_BEGIN_RDRAG;
//else: left drag, already set above
NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
case TVN_BEGINLABELEDIT:
{
- eventType = wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT;
+ eventType = wxEVT_TREE_BEGIN_LABEL_EDIT;
TV_DISPINFO *info = (TV_DISPINFO *)lParam;
// although the user event handler may still veto it, it is
case TVN_DELETEITEM:
{
- eventType = wxEVT_COMMAND_TREE_DELETE_ITEM;
+ eventType = wxEVT_TREE_DELETE_ITEM;
NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
event.m_item = tv->itemOld.hItem;
case TVN_ENDLABELEDIT:
{
- eventType = wxEVT_COMMAND_TREE_END_LABEL_EDIT;
+ eventType = wxEVT_TREE_END_LABEL_EDIT;
TV_DISPINFO *info = (TV_DISPINFO *)lParam;
event.m_item = info->item.hItem;
#ifdef TVN_GETINFOTIP
case TVN_GETINFOTIP:
{
- eventType = wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP;
+ eventType = wxEVT_TREE_ITEM_GETTOOLTIP;
NMTVGETINFOTIP *info = (NMTVGETINFOTIP*)lParam;
// Which item are we trying to get a tooltip for?
#endif // !__WXWINCE__
case TVN_GETDISPINFO:
- eventType = wxEVT_COMMAND_TREE_GET_INFO;
+ eventType = wxEVT_TREE_GET_INFO;
// fall through
case TVN_SETDISPINFO:
{
if ( eventType == wxEVT_NULL )
- eventType = wxEVT_COMMAND_TREE_SET_INFO;
+ eventType = wxEVT_TREE_SET_INFO;
//else: get, already set above
TV_DISPINFO *info = (TV_DISPINFO *)lParam;
case TVN_KEYDOWN:
{
- eventType = wxEVT_COMMAND_TREE_KEY_DOWN;
TV_KEYDOWN *info = (TV_KEYDOWN *)lParam;
// fabricate the lParam and wParam parameters sufficiently
// similar to the ones from a "real" WM_KEYDOWN so that
// CreateKeyEvent() works correctly
- const bool isAltDown = ::GetKeyState(VK_MENU) < 0;
- WXLPARAM lParam = (isAltDown ? KF_ALTDOWN : 0) << 16;
+ return MSWHandleTreeKeyDownEvent(
+ info->wVKey, (wxIsAltDown() ? KF_ALTDOWN : 0) << 16);
+ }
- WXWPARAM wParam = info->wVKey;
- int keyCode = wxCharCodeMSWToWX(wParam);
- if ( !keyCode )
- {
- // wxCharCodeMSWToWX() returns 0 to indicate that this is a
- // simple ASCII key
- keyCode = wParam;
- }
+ // Vista's tree control has introduced some problems with our
+ // multi-selection tree. When TreeView_SelectItem() is called,
+ // the wrong items are deselected.
- event.m_evtKey = CreateKeyEvent(wxEVT_KEY_DOWN,
- keyCode,
- lParam,
- wParam);
+ // Fortunately, Vista provides a new notification, TVN_ITEMCHANGING
+ // that can be used to regulate this incorrect behaviour. The
+ // following messages will allow only the unlocked item's selection
+ // state to change
- // a separate event for Space/Return
- if ( !wxIsCtrlDown() && !wxIsShiftDown() && !isAltDown &&
- ((info->wVKey == VK_SPACE) || (info->wVKey == VK_RETURN)) )
+ case TVN_ITEMCHANGINGA:
+ case TVN_ITEMCHANGINGW:
+ {
+ // we only need to handles these in multi-select trees
+ if ( HasFlag(wxTR_MULTIPLE) )
{
- wxTreeItemId item;
- if ( !HasFlag(wxTR_MULTIPLE) )
- item = GetSelection();
-
- wxTreeEvent event2(wxEVT_COMMAND_TREE_ITEM_ACTIVATED,
- this, item);
- (void)GetEventHandler()->ProcessEvent(event2);
+ // get info about the item about to be changed
+ NMTVITEMCHANGE* info = (NMTVITEMCHANGE*)lParam;
+ if (TreeItemUnlocker::IsLocked(info->hItem))
+ {
+ // item's state is locked, don't allow the change
+ // returning 1 will disallow the change
+ *result = 1;
+ return true;
+ }
}
+
+ // allow the state change
}
- break;
+ return false;
// NB: MSLU is broken and sends TVN_SELCHANGEDA instead of
// TVN_SELCHANGEDW in Unicode mode under Win98. Therefore
// we have to handle both messages:
case TVN_SELCHANGEDA:
case TVN_SELCHANGEDW:
- eventType = wxEVT_COMMAND_TREE_SEL_CHANGED;
+ if ( !m_changingSelection )
+ {
+ eventType = wxEVT_TREE_SEL_CHANGED;
+ }
// fall through
case TVN_SELCHANGINGA:
case TVN_SELCHANGINGW:
+ if ( !m_changingSelection )
{
if ( eventType == wxEVT_NULL )
- eventType = wxEVT_COMMAND_TREE_SEL_CHANGING;
+ eventType = wxEVT_TREE_SEL_CHANGING;
//else: already set above
if (hdr->code == TVN_SELCHANGINGW ||
event.m_itemOld = tv->itemOld.hItem;
}
}
+
+ // we receive this message from WM_LBUTTONDOWN handler inside
+ // comctl32.dll and so before the click is passed to
+ // DefWindowProc() which sets the focus to the window which was
+ // clicked and this can lead to unexpected event sequences: for
+ // example, we may get a "selection change" event from the tree
+ // before getting a "kill focus" event for the text control which
+ // had the focus previously, thus breaking user code doing input
+ // validation
+ //
+ // to avoid such surprises, we force the generation of focus events
+ // now, before we generate the selection change ones
+ if ( !m_changingSelection && !m_isBeingDeleted )
+ SetFocus();
break;
- // instead of explicitly checking for _WIN32_IE, check if the
- // required symbols are available in the headers
-#if defined(CDDS_PREPAINT) && !wxUSE_COMCTL32_SAFELY
+ // instead of explicitly checking for _WIN32_IE, check if the
+ // required symbols are available in the headers
+#if defined(CDDS_PREPAINT)
case NM_CUSTOMDRAW:
{
LPNMTVCUSTOMDRAW lptvcd = (LPNMTVCUSTOMDRAW)lParam;
// notify us before painting each item
*result = m_hasAnyAttr ? CDRF_NOTIFYITEMDRAW
: CDRF_DODEFAULT;
+
+ // windows in TreeCtrl use one-based index for item state images,
+ // 0 indexed image is not being used, we're using zero-based index,
+ // so we have to add temp image (of zero index) to state image list
+ // before we draw any item, then after items are drawn we have to
+ // delete it (in POSTPAINT notify)
+ if (m_imageListState && m_imageListState->GetImageCount() > 0)
+ {
+ typedef BOOL (wxSTDCALL *ImageList_Copy_t)
+ (HIMAGELIST, int, HIMAGELIST, int, UINT);
+ static ImageList_Copy_t s_pfnImageList_Copy = NULL;
+ static bool loaded = false;
+
+ if ( !loaded )
+ {
+ wxLoadedDLL dllComCtl32(wxT("comctl32.dll"));
+ if ( dllComCtl32.IsLoaded() )
+ {
+ wxDL_INIT_FUNC(s_pfn, ImageList_Copy, dllComCtl32);
+ loaded = true;
+ }
+ }
+
+ if ( !s_pfnImageList_Copy )
+ {
+ // this code is broken with ImageList_Copy()
+ // but I don't care enough about Win95 support
+ // to write it now -- if anybody does, please
+ // do it
+ wxFAIL_MSG("TODO: implement this for Win95");
+ break;
+ }
+
+ const HIMAGELIST
+ hImageList = GetHimagelistOf(m_imageListState);
+
+ // add temporary image
+ int width, height;
+ m_imageListState->GetSize(0, width, height);
+
+ HBITMAP hbmpTemp = ::CreateBitmap(width, height, 1, 1, NULL);
+ int index = ::ImageList_Add(hImageList, hbmpTemp, hbmpTemp);
+ ::DeleteObject(hbmpTemp);
+
+ if ( index != -1 )
+ {
+ // move images to right
+ for ( int i = index; i > 0; i-- )
+ {
+ (*s_pfnImageList_Copy)(hImageList, i,
+ hImageList, i-1,
+ ILCF_MOVE);
+ }
+
+ // we must remove the image in POSTPAINT notify
+ *result |= CDRF_NOTIFYPOSTPAINT;
+ }
+ }
+ break;
+
+ case CDDS_POSTPAINT:
+ // we are deleting temp image of 0 index, which was
+ // added before items were drawn (in PREPAINT notify)
+ if (m_imageListState && m_imageListState->GetImageCount() > 0)
+ m_imageListState->Remove(0);
break;
case CDDS_ITEMPREPAINT:
point.x = LOWORD(pos);
point.y = HIWORD(pos);
::MapWindowPoints(HWND_DESKTOP, GetHwnd(), &point, 1);
- int flags = 0;
- wxTreeItemId item = HitTest(wxPoint(point.x, point.y), flags);
- if (flags & wxTREE_HITTEST_ONITEMSTATEICON)
+ int htFlags = 0;
+ wxTreeItemId item = HitTest(wxPoint(point.x, point.y), htFlags);
+
+ if ( htFlags & wxTREE_HITTEST_ONITEMSTATEICON )
{
event.m_item = item;
- eventType = wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK;
+ eventType = wxEVT_TREE_STATE_IMAGE_CLICK;
}
+
break;
}
case NM_RCLICK:
{
TV_HITTESTINFO tvhti;
- ::GetCursorPos(&tvhti.pt);
+ wxGetCursorPosMSW(&tvhti.pt);
::ScreenToClient(GetHwnd(), &tvhti.pt);
if ( TreeView_HitTest(GetHwnd(), &tvhti) )
{
- if ( tvhti.flags & TVHT_ONITEM )
+ if ( MSWIsOnItem(tvhti.flags) )
{
event.m_item = tvhti.hItem;
eventType = (int)hdr->code == NM_DBLCLK
- ? wxEVT_COMMAND_TREE_ITEM_ACTIVATED
- : wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK;
+ ? wxEVT_TREE_ITEM_ACTIVATED
+ : wxEVT_TREE_ITEM_RIGHT_CLICK;
event.m_pointDrag.x = tvhti.pt.x;
event.m_pointDrag.y = tvhti.pt.y;
event.SetEventType(eventType);
- if ( event.m_item.IsOk() )
- event.SetClientObject(GetItemData(event.m_item));
-
- bool processed = GetEventHandler()->ProcessEvent(event);
+ bool processed = HandleTreeEvent(event);
// post processing
switch ( hdr->code )
{
case NM_DBLCLK:
- // we translate NM_DBLCLK into ACTIVATED event, so don't interpret
- // the return code of this event handler as the return value for
- // NM_DBLCLK - otherwise, double clicking the item to toggle its
- // expanded status would never work
- *result = false;
+ // we translate NM_DBLCLK into ACTIVATED event and if the user
+ // handled the activation of the item we shouldn't proceed with
+ // also using the same double click for toggling the item expanded
+ // state -- but OTOH do let the user to expand/collapse the item by
+ // double clicking on it if the activation is not handled specially
+ *result = processed;
break;
case NM_RCLICK:
case TVN_BEGINDRAG:
case TVN_BEGINRDRAG:
+#if wxUSE_DRAGIMAGE
if ( event.IsAllowed() )
{
// normally this is impossible because the m_dragImage is
// deleted once the drag operation is over
- wxASSERT_MSG( !m_dragImage, _T("starting to drag once again?") );
+ wxASSERT_MSG( !m_dragImage, wxT("starting to drag once again?") );
m_dragImage = new wxDragImage(*this, event.m_item);
m_dragImage->BeginDrag(wxPoint(0,0), this);
m_dragImage->Show();
+
+ m_dragStarted = true;
}
+#endif // wxUSE_DRAGIMAGE
break;
case TVN_DELETEITEM:
break;
case TVN_ITEMEXPANDED:
- // the item is not refreshed properly after expansion when it has
- // an image depending on the expanded/collapsed state - bug in
- // comctl32.dll or our code?
{
NM_TREEVIEW *tv = (NM_TREEVIEW *)lParam;
- wxTreeItemId id(tv->itemNew.hItem);
+ const wxTreeItemId id(tv->itemNew.hItem);
- int image = GetItemImage(id, wxTreeItemIcon_Expanded);
- if ( image != -1 )
+ if ( tv->action == TVE_COLLAPSE )
+ {
+ if ( wxApp::GetComCtl32Version() >= 600 )
+ {
+ // for some reason the item selection rectangle depends
+ // on whether it is expanded or collapsed (at least
+ // with comctl32.dll v6): it is wider (by 3 pixels) in
+ // the expanded state, so when the item collapses and
+ // then is deselected the rightmost 3 pixels of the
+ // previously drawn selection are left on the screen
+ //
+ // it's not clear if it's a bug in comctl32.dll or in
+ // our code (because it does not happen in Explorer but
+ // OTOH we don't do anything which could result in this
+ // AFAICS) but we do need to work around it to avoid
+ // ugly artifacts
+ RefreshItem(id);
+ }
+ }
+ else // expand
{
- RefreshItem(id);
+ // the item is also not refreshed properly after expansion when
+ // it has an image depending on the expanded/collapsed state:
+ // again, it's not clear if the bug is in comctl32.dll or our
+ // code...
+ int image = GetItemImage(id, wxTreeItemIcon_Expanded);
+ if ( image != -1 )
+ {
+ RefreshItem(id);
+ }
}
}
break;
// why do they define INDEXTOSTATEIMAGEMASK but not the inverse?
#define STATEIMAGEMASKTOINDEX(state) (((state) & TVIS_STATEIMAGEMASK) >> 12)
-void wxTreeCtrl::SetState(const wxTreeItemId& node, int state)
+int wxTreeCtrl::DoGetItemState(const wxTreeItemId& item) const
{
- TV_ITEM tvi;
- tvi.hItem = (HTREEITEM)node.m_pItem;
- tvi.mask = TVIF_STATE;
- tvi.stateMask = TVIS_STATEIMAGEMASK;
+ wxCHECK_MSG( item.IsOk(), wxTREE_ITEMSTATE_NONE, wxT("invalid tree item") );
- // Select the specified state, or -1 == cycle to the next one.
- if ( state == -1 )
- {
- TreeView_GetItem(GetHwnd(), &tvi);
+ // receive the desired information
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
+ DoGetItem(&tvItem);
- state = STATEIMAGEMASKTOINDEX(tvi.state) + 1;
- if ( state == m_imageListState->GetImageCount() )
- state = 1;
- }
+ // state images are one-based
+ return STATEIMAGEMASKTOINDEX(tvItem.state) - 1;
+}
+
+void wxTreeCtrl::DoSetItemState(const wxTreeItemId& item, int state)
+{
+ wxCHECK_RET( item.IsOk(), wxT("invalid tree item") );
+
+ wxTreeViewItem tvItem(item, TVIF_STATE, TVIS_STATEIMAGEMASK);
+
+ // state images are one-based
+ // 0 if no state image display (wxTREE_ITEMSTATE_NONE = -1)
+ tvItem.state = INDEXTOSTATEIMAGEMASK(state + 1);
+
+ DoSetItem(&tvItem);
+}
+
+// ----------------------------------------------------------------------------
+// Update locking.
+// ----------------------------------------------------------------------------
+
+// Using WM_SETREDRAW with the native control is a bad idea as it's broken in
+// some Windows versions (see http://support.microsoft.com/kb/130611) and
+// doesn't seem to do anything in other ones (e.g. under Windows 7 the tree
+// control keeps updating its scrollbars while the items are added to it,
+// resulting in horrible flicker when adding even a couple of dozen items).
+// So we resize it to the smallest possible size instead of freezing -- this
+// still flickers, but actually not as badly as it would if we didn't do it.
- wxCHECK_RET( state < m_imageListState->GetImageCount(),
- _T("wxTreeCtrl::SetState(): item index out of bounds") );
+void wxTreeCtrl::DoFreeze()
+{
+ if ( IsShown() )
+ {
+ RECT rc;
+ ::GetWindowRect(GetHwnd(), &rc);
+ m_thawnSize = wxRectFromRECT(rc).GetSize();
- tvi.state = INDEXTOSTATEIMAGEMASK(state);
+ ::SetWindowPos(GetHwnd(), 0, 0, 0, 1, 1,
+ SWP_NOMOVE | SWP_NOZORDER | SWP_NOREDRAW | SWP_NOACTIVATE);
+ }
+}
- TreeView_SetItem(GetHwnd(), &tvi);
+void wxTreeCtrl::DoThaw()
+{
+ if ( IsShown() )
+ {
+ if ( m_thawnSize != wxDefaultSize )
+ {
+ ::SetWindowPos(GetHwnd(), 0, 0, 0, m_thawnSize.x, m_thawnSize.y,
+ SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE);
+ }
+ }
}
-int wxTreeCtrl::GetState(const wxTreeItemId& node)
+// We also need to override DoSetSize() to ensure that m_thawnSize is reset if
+// the window is resized while being frozen -- in this case, we need to avoid
+// resizing it back to its original, pre-freeze, size when it's thawed.
+void wxTreeCtrl::DoSetSize(int x, int y, int width, int height, int sizeFlags)
{
- TV_ITEM tvi;
- tvi.hItem = (HTREEITEM)node.m_pItem;
- tvi.mask = TVIF_STATE;
- tvi.stateMask = TVIS_STATEIMAGEMASK;
- TreeView_GetItem(GetHwnd(), &tvi);
+ m_thawnSize = wxDefaultSize;
- return STATEIMAGEMASKTOINDEX(tvi.state);
+ wxTreeCtrlBase::DoSetSize(x, y, width, height, sizeFlags);
}
#endif // wxUSE_TREECTRL
projects / wxWidgets.git / blobdiff