X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/5942996c94a82dcbedf7b1041b08acd8d1d97449..25d7497c18a95bb2953ccad72a127c955285ae84:/src/dfb/dc.cpp

diff --git a/src/dfb/dc.cpp b/src/dfb/dc.cpp
index f5fac4bcc0..60b3782b92 100644
--- a/src/dfb/dc.cpp
+++ b/src/dfb/dc.cpp
@@ -78,22 +78,15 @@ void wxDC::Init(const wxIDirectFBSurfacePtr& surface)
 // clipping
 // ---------------------------------------------------------------------------
 
-
-#define DO_SET_CLIPPING_BOX(rg)                      \
-{                                                    \
-    wxRect rect = rg.GetBox();                       \
-    m_clipX1 = (wxCoord) XDEV2LOG(rect.GetLeft());   \
-    m_clipY1 = (wxCoord) YDEV2LOG(rect.GetTop());    \
-    m_clipX2 = (wxCoord) XDEV2LOG(rect.GetRight());  \
-    m_clipY2 = (wxCoord) YDEV2LOG(rect.GetBottom()); \
-}
-
 void wxDC::DoSetClippingRegion(wxCoord cx, wxCoord cy, wxCoord cw, wxCoord ch)
 {
     wxCHECK_RET( Ok(), wxT("invalid dc") );
 
     wxSize size(GetSize());
 
+    wxASSERT_MSG( !m_clipping,
+                  _T("narrowing clipping region not implemented yet") );
+
     // NB: We intersect the clipping rectangle with surface's area here because
     //     DirectFB will return an error if you try to set clipping rectangle
     //     that is partially outside of the surface.
@@ -115,8 +108,7 @@ void wxDC::DoSetClippingRegion(wxCoord cx, wxCoord cy, wxCoord cw, wxCoord ch)
 
 void wxDC::DoSetClippingRegionAsRegion(const wxRegion& region)
 {
-    // NB: this can be done because wxDFB only supports
-    //     rectangular regions
+    // NB: this can be done because wxDFB only supports rectangular regions
     SetClippingRegion(region.AsRect());
 }
 
@@ -188,8 +180,32 @@ void wxDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
     if ( m_pen.GetStyle() == wxTRANSPARENT )
         return;
 
-    m_surface->DrawLine(XLOG2DEV(x1), YLOG2DEV(y1),
-                        XLOG2DEV(x2), YLOG2DEV(y2));
+    wxCoord xx1 = XLOG2DEV(x1);
+    wxCoord yy1 = YLOG2DEV(y1);
+    wxCoord xx2 = XLOG2DEV(x2);
+    wxCoord yy2 = YLOG2DEV(y2);
+
+    // FIXME: DrawLine() shouldn't draw the last pixel, but DFB's DrawLine()
+    //        does draw it. We should undo any change to the last pixel by
+    //        using GetPixel() and PutPixel(), but until they are implemented,
+    //        handle at least the special case of vertical and horizontal
+    //        lines correctly:
+    if ( xx1 == xx2 )
+    {
+        if ( yy1 < yy2 )
+            yy2--;
+        else if ( yy1 > yy2 )
+            yy2++;
+    }
+    if ( yy1 == yy2 )
+    {
+        if ( xx1 < xx2 )
+            xx2--;
+        else if ( xx1 > xx2 )
+            xx2++;
+    }
+
+    m_surface->DrawLine(xx1, yy1, xx2, yy2);
 
     CalcBoundingBox(x1, y1);
     CalcBoundingBox(x2, y2);
@@ -259,7 +275,8 @@ void wxDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
     {
         SelectColour(m_brush.GetColour());
         m_surface->FillRectangle(xx, yy, ww, hh);
-        // restore pen's colour
+        // restore pen's colour, because other drawing functions expect the
+        // colour to be set to the pen:
         SelectColour(m_pen.GetColour());
     }
 
@@ -309,16 +326,22 @@ void wxDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y)
     // if background mode is solid, DrawText must paint text's background:
     if ( m_backgroundMode == wxSOLID )
     {
-        wxCHECK_RET( m_backgroundBrush.Ok(), wxT("invalid background brush") );
+        wxCHECK_RET( m_textBackgroundColour.Ok(),
+                     wxT("invalid background color") );
 
-        SelectColour(m_backgroundBrush.GetColour());
+        SelectColour(m_textBackgroundColour);
         m_surface->FillRectangle(xx, yy, XLOG2DEVREL(w), YLOG2DEVREL(h));
-        // restore pen's colour
-        SelectColour(m_pen.GetColour());
     }
 
     // finally draw the text itself:
+    wxCHECK_RET( m_textForegroundColour.Ok(),
+                 wxT("invalid foreground color") );
+    SelectColour(m_textForegroundColour);
     m_surface->DrawString(wxSTR_TO_DFB(text), -1, xx, yy, DSTF_LEFT | DSTF_TOP);
+
+    // restore pen's colour, because other drawing functions expect the colour
+    // to be set to the pen:
+    SelectColour(m_pen.GetColour());
 }
 
 void wxDC::DoDrawRotatedText(const wxString& text,
@@ -758,6 +781,16 @@ bool wxDC::DoBlitFromSurface(const wxIDirectFBSurfacePtr& src,
                              wxCoord w, wxCoord h,
                              wxCoord dstx, wxCoord dsty)
 {
+    // don't do anything if the source rectangle is outside of source surface,
+    // DirectFB would assert in that case:
+    wxSize srcsize;
+    src->GetSize(&srcsize.x, &srcsize.y);
+    if ( !wxRect(srcx, srcy, w, h).Intersects(wxRect(srcsize)) )
+    {
+        wxLogDebug(_T("Blitting from area outside of the source surface, caller code needs fixing."));
+        return false;
+    }
+
     CalcBoundingBox(dstx, dsty);
     CalcBoundingBox(dstx + w, dsty + h);