class WXDLLIMPEXP_FWD_CORE wxPalette;
class WXDLLIMPEXP_FWD_CORE wxPixelDataBase;
+// What kind of transparency should a bitmap copied from an icon or cursor
+// have?
+enum wxBitmapTransparency
+{
+ wxBitmapTransparency_Auto, // default: copy alpha if the source has it
+ wxBitmapTransparency_None, // never create alpha
+ wxBitmapTransparency_Always // always use alpha
+};
+
// ----------------------------------------------------------------------------
// wxBitmap: a mono or colour bitmap
// ----------------------------------------------------------------------------
// we must have this, otherwise icons are silently copied into bitmaps using
// the copy ctor but the resulting bitmap is invalid!
- wxBitmap(const wxIcon& icon) { CopyFromIcon(icon); }
+ wxBitmap(const wxIcon& icon,
+ wxBitmapTransparency transp = wxBitmapTransparency_Auto)
+ {
+ CopyFromIcon(icon, transp);
+ }
wxBitmap& operator=(const wxIcon& icon)
{
// get the given part of bitmap
wxBitmap GetSubBitmap( const wxRect& rect ) const;
+ // NB: This should not be called from user code. It is for wx internal
+ // use only.
+ wxBitmap GetSubBitmapOfHDC( const wxRect& rect, WXHDC hdc ) const;
+
// copies the contents and mask of the given (colour) icon to the bitmap
- bool CopyFromIcon(const wxIcon& icon);
+ bool CopyFromIcon(const wxIcon& icon,
+ wxBitmapTransparency transp = wxBitmapTransparency_Auto);
// copies the contents and mask of the given cursor to the bitmap
- bool CopyFromCursor(const wxCursor& cursor);
+ bool CopyFromCursor(const wxCursor& cursor,
+ wxBitmapTransparency transp = wxBitmapTransparency_Auto);
#if wxUSE_WXDIB
// copies from a device independent bitmap
private:
// common part of CopyFromIcon/CopyFromCursor for Win32
- bool CopyFromIconOrCursor(const wxGDIImage& icon);
+ bool
+ CopyFromIconOrCursor(const wxGDIImage& icon,
+ wxBitmapTransparency transp = wxBitmapTransparency_Auto);
DECLARE_DYNAMIC_CLASS(wxBitmap)