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Fix selection events generation in multi-select wxTreeCtrl.

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Only deselect the items when the mouse is released if really necessary: add a
flag indicating when it is instead of trying to deduce it in the mouse up
handler.

Closes #11099 (thanks to Jonathan Liu).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@61784 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2009-08-30 17:24:53 +00:00
parent f2fec40d2c
commit d301c44093
2 changed files with 9 additions and 7 deletions
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3
include/wx/msw/treectrl.h
View File

@ -318,6 +318,9 @@ private:
// whether we need to trigger a state image click event
bool m_triggerStateImageClick;
// whether we need to deselect other items on mouse up
bool m_mouseUpDeselect;
friend class wxTreeItemIndirectData;
friend class wxTreeSortHelper;

13
src/msw/treectrl.cpp
View File

@ -750,6 +750,7 @@ void wxTreeCtrl::Init()
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
@ -2876,6 +2877,7 @@ wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
else
{
SetFocusedItem(wxTreeItemId(htItem));
m_mouseUpDeselect = true;
}
}
else // click on a single selected item
@ -3025,16 +3027,13 @@ wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
case WM_LBUTTONUP:
if ( isMultiple )
{
// deselect other items if multiple items selected
// deselect other items if needed
if ( htItem )
{
wxArrayTreeItemIds selections;
size_t count = GetSelections(selections);
if ( count > 1 &&
!(wParam & MK_CONTROL) &&
!(wParam & MK_SHIFT) )
if ( m_mouseUpDeselect )
{
m_mouseUpDeselect = false;
wxTreeEvent changingEvent(wxEVT_COMMAND_TREE_SEL_CHANGING,
this, htItem);
changingEvent.m_itemOld = htOldItem;