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reset selection anchor when a key changing selection is pressed without Shift (closes bug 1176908)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@33365 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2005-04-05 23:30:47 +00:00
parent b3d6b0c94c
commit ba8a196102
1 changed files with 67 additions and 50 deletions
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117
src/msw/treectrl.cpp
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@ -1951,6 +1951,8 @@ void wxTreeCtrl::UnselectAll()
::UnselectItem(GetHwnd(), HITEM_PTR(selections[n]));
#endif // wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE/!wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE
}
m_htSelStart.Unset();
}
else
{
@ -2439,64 +2441,79 @@ WXLRESULT wxTreeCtrl::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lPara
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 )
switch ( wParam )
{
m_htSelStart = 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 )
case VK_SPACE:
if ( bCtrl )
{
// at the top/bottom
htNext = htSel;
::ToggleItemSelection(GetHwnd(), htSel);
}
else
{
UnselectAll();
if ( bShift )
{
SelectRange(GetHwnd(), HITEM(m_htSelStart), htNext);
}
else // bCtrl
{
// without changing selection
::SetFocus(GetHwnd(), htNext);
::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_HOME:
case VK_END:
case VK_PRIOR:
case VK_NEXT:
// TODO: handle Shift/Ctrl with these keys
if ( !bCtrl && !bShift )
{
UnselectAll();
m_htSelStart.Unset();
}
}
}
#endif // !wxUSE_CHECKBOXES_IN_MULTI_SEL_TREE