// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
-#include "wx/msw/private.h" // needs to be before #include <commdlg.h>
#ifdef __BORLANDC__
#pragma hdrstop
#include <string.h>
#include <math.h>
+#include "wx/msw/private.h" // needs to be before #include <commdlg.h>
+
#if wxUSE_COMMON_DIALOGS
#if wxUSE_NORLANDER_HEADERS
#include <windows.h>
#include <print.h>
#endif
- IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
+IMPLEMENT_ABSTRACT_CLASS(wxDC, wxObject)
// ---------------------------------------------------------------------------
// constants
}
else
{
- wxCHECK_RET( m_selectedBitmap.Ok(), wxT("this DC can't be cleared") );
+ // No, I think we should simply ignore this if printing on e.g.
+ // a printer DC.
+ // wxCHECK_RET( m_selectedBitmap.Ok(), wxT("this DC can't be cleared") );
+ if (!m_selectedBitmap.Ok())
+ return;
rect.left = 0; rect.top = 0;
rect.right = m_selectedBitmap.GetWidth();
void wxDC::DoFloodFill(wxCoord x, wxCoord y, const wxColour& col, int style)
{
- (void)ExtFloodFill(GetHdc(), XLOG2DEV(x), YLOG2DEV(y),
- col.GetPixel(),
- style == wxFLOOD_SURFACE ? FLOODFILLSURFACE
- : FLOODFILLBORDER);
+ if ( !::ExtFloodFill(GetHdc(), XLOG2DEV(x), YLOG2DEV(y),
+ col.GetPixel(),
+ style == wxFLOOD_SURFACE ? FLOODFILLSURFACE
+ : FLOODFILLBORDER) )
+ {
+ // quoting from the MSDN docs:
+ //
+ // Following are some of the reasons this function might fail:
+ //
+ // * The filling could not be completed.
+ // * The specified point has the boundary color specified by the
+ // crColor parameter (if FLOODFILLBORDER was requested).
+ // * The specified point does not have the color specified by
+ // crColor (if FLOODFILLSURFACE was requested)
+ // * The point is outside the clipping region that is, it is not
+ // visible on the device.
+ //
+ wxLogLastError("ExtFloodFill");
+ }
CalcBoundingBox(x, y);
}
bool wxDC::DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const
{
- // added by steve 29.12.94 (copied from DrawPoint)
- // returns TRUE for pixels in the color of the current pen
- // and FALSE for all other pixels colors
- // if col is non-NULL return the color of the pixel
-
// get the color of the pixel
COLORREF pixelcolor = ::GetPixel(GetHdc(), XLOG2DEV(x), YLOG2DEV(y));
+
// get the color of the pen
COLORREF pencolor = 0x00ffffff;
if (m_pen.Ok())
}
// return the color of the pixel
- if(col)
- col->Set(GetRValue(pixelcolor),GetGValue(pixelcolor),GetBValue(pixelcolor));
+ if( col )
+ {
+ col->Set(GetRValue(pixelcolor),
+ GetGValue(pixelcolor),
+ GetBValue(pixelcolor));
+ }
- // check, if color of the pixels is the same as the color
- // of the current pen
- return(pixelcolor==pencolor);
+ // check, if color of the pixels is the same as the color of the current
+ // pen and return TRUE if it is, FALSE otherwise
+ return pixelcolor == pencolor;
}
void wxDC::DoCrossHair(wxCoord x, wxCoord y)
void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
- COLORREF old_textground = ::GetTextColor(GetHdc());
- COLORREF old_background = ::GetBkColor(GetHdc());
- if (m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE)
+ COLORREF colFgOld = 0,
+ colBgOld = 0;
+
+ if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
{
+ colFgOld = ::GetTextColor(GetHdc());
+ colBgOld = ::GetBkColor(GetHdc());
- if (m_textForegroundColour.Ok())
- { //just the oposite from what is expected see help on pattern brush
- // 1 in mask becomes bk color
- ::SetBkColor(GetHdc(), m_textForegroundColour.GetPixel() );
- }
- if (m_textBackgroundColour.Ok())
- { //just the oposite from what is expected
- // 0 in mask becomes text color
- ::SetTextColor(GetHdc(), m_textBackgroundColour.GetPixel() );
- }
+ if ( m_textForegroundColour.Ok() )
+ {
+ // just the oposite from what is expected see help on pattern brush
+ // 1 in mask becomes bk color
+ ::SetBkColor(GetHdc(), m_textForegroundColour.GetPixel());
+ }
- if (m_backgroundMode == wxTRANSPARENT)
- SetBkMode(GetHdc(), TRANSPARENT);
- else
- SetBkMode(GetHdc(), OPAQUE);
+ if ( m_textBackgroundColour.Ok() )
+ {
+ // 0 in mask becomes text color
+ ::SetTextColor(GetHdc(), m_textBackgroundColour.GetPixel());
+ }
+
+ // VZ: IMHO this does strictly nothing here
+ SetBkMode(GetHdc(), m_backgroundMode == wxTRANSPARENT ? TRANSPARENT
+ : OPAQUE);
}
wxCoord x2 = x + width;
wxCoord y2 = y + height;
- /* MATTHEW: [6] new normalization */
-#if WX_STANDARD_GRAPHICS
- bool do_brush, do_pen;
-
- do_brush = m_brush.Ok() && m_brush.GetStyle() != wxTRANSPARENT;
- do_pen = m_pen.Ok() && m_pen.GetStyle() != wxTRANSPARENT;
-
- if (do_brush) {
- HPEN orig_pen = NULL;
-
- if (do_pen || !m_pen.Ok())
- orig_pen = (HPEN) ::SelectObject(GetHdc(), (HPEN) ::GetStockObject(NULL_PEN));
-
- (void)Rectangle(GetHdc(), XLOG2DEV(x), YLOG2DEV(y),
- XLOG2DEV(x2) + 1, YLOG2DEV(y2) + 1);
-
- if (do_pen || !m_pen.Ok())
- ::SelectObject(GetHdc() , orig_pen);
+ // Windows draws the filled rectangles without outline (i.e. drawn with a
+ // transparent pen) one pixel smaller in both directions and we want them
+ // to have the same size regardless of which pen is used - adjust
+ if ( m_pen.GetStyle() == wxTRANSPARENT )
+ {
+ x2++;
+ y2++;
}
- if (do_pen) {
- HBRUSH orig_brush = NULL;
-
- if (do_brush || !m_brush.Ok())
- orig_brush = (HBRUSH) ::SelectObject(GetHdc(), (HBRUSH) ::GetStockObject(NULL_BRUSH));
- (void)Rectangle(GetHdc(), XLOG2DEV(x), YLOG2DEV(y),
- XLOG2DEV(x2), YLOG2DEV(y2));
-
- if (do_brush || !m_brush.Ok())
- ::SelectObject(GetHdc(), orig_brush);
- }
-#else
(void)Rectangle(GetHdc(), XLOG2DEV(x), YLOG2DEV(y), XLOG2DEV(x2), YLOG2DEV(y2));
-#endif
CalcBoundingBox(x, y);
CalcBoundingBox(x2, y2);
- if (m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE)
+ if ( m_brush.GetStyle() == wxSTIPPLE_MASK_OPAQUE )
{
- ::SetBkMode(GetHdc(), TRANSPARENT);
- ::SetTextColor(GetHdc(), old_textground);
- ::SetBkColor(GetHdc(), old_background);
+ // restore the colours we changed
+ ::SetBkMode(GetHdc(), TRANSPARENT);
+ ::SetTextColor(GetHdc(), colFgOld);
+ ::SetBkColor(GetHdc(), colBgOld);
}
}
const wxBitmap& bmp = source->m_selectedBitmap;
mask = bmp.GetMask();
- wxCHECK_MSG( bmp.Ok() && mask, FALSE,
- _T("can't blit with mask without mask") );
+ if ( !(bmp.Ok() && mask && mask->GetMaskBitmap()) )
+ {
+ // don't give assert here because this would break existing
+ // programs - just silently ignore useMask parameter
+ useMask = FALSE;
+ }
}
COLORREF old_textground = ::GetTextColor(GetHdc());
if (useMask)
{
#ifdef __WIN32__
- if ( ::MaskBlt(GetHdc(), xdest, ydest,
- (int)width, (int)height,
- GetHdcOf(*source), xsrc, ysrc,
- (HBITMAP) mask->GetMaskBitmap(),
- 0, 0, MAKEROP4(SRCCOPY, PATCOPY)) != 0 )
- {
- // Success
- success = TRUE;
- }
- else
+ HBITMAP hbmpMask = wxInvertMask((HBITMAP)mask->GetMaskBitmap());
+
+ // 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);
+ ::DeleteObject(hbmpMask);
+
+ if ( !success )
#endif // Win32
{
// Blit bitmap with mask
projects / wxWidgets.git / blobdiff