-// These are the default colors used to map the bitmap colors to the current
-// system colors. Note that they are in BGR format because this is what Windows
-// wants (and not RGB)
-
-#define BGR_BUTTONTEXT (RGB(000,000,000)) // black
-#define BGR_BUTTONSHADOW (RGB(128,128,128)) // dark grey
-#define BGR_BUTTONFACE (RGB(192,192,192)) // bright grey
-#define BGR_BUTTONHILIGHT (RGB(255,255,255)) // white
-#define BGR_BACKGROUNDSEL (RGB(255,000,000)) // blue
-#define BGR_BACKGROUND (RGB(255,000,255)) // magenta
-
-void wxMapBitmap(HBITMAP hBitmap, int width, int height)
-{
- COLORMAP ColorMap[] =
- {
- {BGR_BUTTONTEXT, COLOR_BTNTEXT}, // black
- {BGR_BUTTONSHADOW, COLOR_BTNSHADOW}, // dark grey
- {BGR_BUTTONFACE, COLOR_BTNFACE}, // bright grey
- {BGR_BUTTONHILIGHT, COLOR_BTNHIGHLIGHT},// white
- {BGR_BACKGROUNDSEL, COLOR_HIGHLIGHT}, // blue
- {BGR_BACKGROUND, COLOR_WINDOW} // magenta
- };
-
- int NUM_MAPS = (sizeof(ColorMap)/sizeof(COLORMAP));
- int n;
- for ( n = 0; n < NUM_MAPS; n++)
- {
- ColorMap[n].to = ::GetSysColor(ColorMap[n].to);
- }
-
- HBITMAP hbmOld;
- HDC hdcMem = CreateCompatibleDC(NULL);
-
- if (hdcMem)
- {
- hbmOld = (HBITMAP) SelectObject(hdcMem, hBitmap);
-
- int i, j, k;
- for ( i = 0; i < width; i++)
- {
- for ( j = 0; j < height; j++)
- {
- COLORREF pixel = ::GetPixel(hdcMem, i, j);
-/*
- BYTE red = GetRValue(pixel);
- BYTE green = GetGValue(pixel);
- BYTE blue = GetBValue(pixel);
-*/
+ // first of all, are there any controls at all?
+ wxToolBarToolsList::compatibility_iterator node;
+ for ( node = m_tools.GetFirst(); node; node = node->GetNext() )
+ {
+ if ( node->GetData()->IsControl() )
+ break;
+ }
+
+ if ( !node )
+ // no controls, nothing to erase
+ return false;
+
+ // prepare the DC on which we'll be drawing
+ wxClientDC dc(this);
+ dc.SetBrush(wxBrush(GetBackgroundColour(), wxSOLID));
+ dc.SetPen(*wxTRANSPARENT_PEN);