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1. wxWizard appears in the centre of the screen by default

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2. the selected brush isn't damaged any more by DrawBitmap()
3. corrected confusion between current and bg brush in DrawBitmap()
4. added wxGetColourFromUser() (to match wxGetTextFromUser() &c)
5. mem leak/crash in wxListCtrl on mode change fixed
6. wxListCtrl::Set{Fore|Back}groundColour() work as expected now


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5896 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2000-02-08 01:08:51 +00:00
parent 11f26ea0e2
commit 91b4c08d6f
6 changed files with 135 additions and 25 deletions
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90
src/msw/dc.cpp
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@@ -657,7 +657,56 @@ void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask
int width = bmp.GetWidth(),
height = bmp.GetHeight();
if ( !useMask )
HBITMAP hbmpMask = 0;
if ( useMask )
{
wxMask *mask = bmp.GetMask();
if ( mask )
hbmpMask = (HBITMAP)mask->GetMaskBitmap();
if ( !hbmpMask )
{
// don't give assert here because this would break existing
// programs - just silently ignore useMask parameter
useMask = FALSE;
}
}
if ( useMask )
{
#ifdef __WIN32__
HDC hdcMem = ::CreateCompatibleDC(GetHdc());
::SelectObject(hdcMem, GetHbitmapOf(bmp));
// this will only work if the transparent part of our bitmap is black
// because it is combined with the destination rectangle using OR, so
// it won't be really transparent otherwise - I don't know what to do
// about it, may be use MAKEROP4(SRCCOPY, DSTINVERT) twice? Or create a
// copy of the bitmap with the transparent part replaced with black
// pixels?
bool ok = ::MaskBlt(GetHdc(), x, y, width, height,
hdcMem, 0, 0,
hbmpMask, 0, 0,
MAKEROP4(SRCCOPY, SRCPAINT)) != 0;
::DeleteDC(hdcMem);
if ( !ok )
#endif // Win32
{
// VZ: this is incorrect, Blit() doesn't (and can't) draw
// transparently, but it's still better than nothing at all
// Rather than reproduce wxDC::Blit, let's do it at the wxWin API level
wxMemoryDC memDC;
memDC.SelectObject(bmp);
Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
memDC.SelectObject(wxNullBitmap);
}
}
else // no mask, just use BitBlt()
{
HDC cdc = GetHdc();
HDC memdc = ::CreateCompatibleDC( cdc );
@@ -683,16 +732,6 @@ void wxDC::DoDrawBitmap( const wxBitmap &bmp, wxCoord x, wxCoord y, bool useMask
::SetTextColor(GetHdc(), old_textground);
::SetBkColor(GetHdc(), old_background);
}
else
{
// Rather than reproduce wxDC::Blit, let's do it at the wxWin API level
wxMemoryDC memDC;
memDC.SelectObject(bmp);
Blit(x, y, width, height, &memDC, 0, 0, wxCOPY, useMask);
memDC.SelectObject(wxNullBitmap);
}
}
void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
@@ -1304,21 +1343,40 @@ bool wxDC::DoBlit(wxCoord xdest, wxCoord ydest,
if (useMask)
{
#ifdef __WIN32__
// prepare the mask bitmap
HBITMAP hbmpMask = wxInvertMask((HBITMAP)mask->GetMaskBitmap());
// select the correct brush: the current one by default, background one
// if none
HBRUSH hbrNew;
if ( m_brush.Ok() )
{
hbrNew = (HBRUSH)m_brush.GetResourceHandle();
}
else if ( m_backgroundBrush.Ok() )
{
hbrNew = (HBRUSH)m_backgroundBrush.GetResourceHandle();
}
else
{
hbrNew = 0;
}
HGDIOBJ hbrOld = hbrNew ? ::SelectObject(GetHdc(), hbrNew) : 0;
// we want the part of the image corresponding to the mask to be
// transparent, i.e. do PATCOPY there and apply dwRop elsewhere
const wxColour& colBg = m_backgroundBrush.GetColour();
HBRUSH hbrBg = (HBRUSH)::CreateSolidBrush(wxColourToRGB(colBg));
HBRUSH hbrOld = (HBRUSH)::SelectObject(GetHdc(), hbrBg);
success = ::MaskBlt(GetHdc(), xdest, ydest, width, height,
GetHdcOf(*source), xsrc, ysrc,
hbmpMask, 0, 0,
MAKEROP4(PATCOPY, dwRop)) != 0;
(void)::SelectObject(GetHdc(), hbrOld);
::DeleteObject(hbrOld);
if ( hbrNew )
{
(void)::SelectObject(GetHdc(), hbrOld);
}
::DeleteObject(hbmpMask);
if ( !success )