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Added wxTLW::SetShape and implementations for wxGTK, wxMSW and an

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empty stub for wxMac.
Added some generic helpers and a new ctor to wxRegion.
Added samples/shaped.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@19857 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robin Dunn
2003-03-28 23:05:05 +00:00
parent 7728856b75
commit 1542ea396a
59 changed files with 5861 additions and 1155 deletions
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42
src/msw/toplevel.cpp
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@@ -758,6 +758,47 @@ bool wxTopLevelWindowMSW::EnableCloseButton(bool enable)
return TRUE;
}
bool wxTopLevelWindowMSW::SetShape(const wxRegion& region)
{
// The empty region signifies that the shape should be removed from the
// window.
if ( region.IsEmpty() )
{
if (::SetWindowRgn(GetHwnd(), NULL, TRUE) == 0)
{
wxLogLastError(_T("SetWindowRgn"));
return FALSE;
}
return TRUE;
}
// Windows takes ownership of the region, so
// we'll have to make a copy of the region to give to it.
DWORD noBytes = ::GetRegionData(GetHrgnOf(region), 0, NULL);
RGNDATA *rgnData = (RGNDATA*) new char[noBytes];
::GetRegionData(GetHrgnOf(region), noBytes, rgnData);
HRGN hrgn = ::ExtCreateRegion(NULL, noBytes, rgnData);
delete[] (char*) rgnData;
// SetWindowRgn expects the region to be in coordinants
// relative to the window, not the client area. Figure
// out the offset, if any.
RECT rect;
DWORD dwStyle = ::GetWindowLong(GetHwnd(), GWL_STYLE);
DWORD dwExStyle = ::GetWindowLong(GetHwnd(), GWL_EXSTYLE);
::GetClientRect(GetHwnd(), &rect);
::AdjustWindowRectEx(&rect, dwStyle, FALSE, dwExStyle);
::OffsetRgn(hrgn, -rect.left, -rect.top);
// Now call the shape API with the new region.
if (::SetWindowRgn(GetHwnd(), hrgn, TRUE) == 0)
{
wxLogLastError(_T("SetWindowRgn"));
return FALSE;
}
return TRUE;
}
// ----------------------------------------------------------------------------
// wxTopLevelWindow event handling
// ----------------------------------------------------------------------------
@@ -912,3 +953,4 @@ HWND wxTLWHiddenParentModule::GetHWND()
return ms_hwnd;
}