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Added wxBitmap::GetSubBitmap()

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Correct images in gen. dir dlg.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5084 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
1999-12-23 18:18:43 +00:00
parent 8eb2940f7f
commit 17bec151f9
6 changed files with 95 additions and 5 deletions
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39
src/gtk/bitmap.cpp
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@@ -366,6 +366,45 @@ void wxBitmap::SetMask( wxMask *mask )
M_BMPDATA->m_mask = mask;
}
wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
{
wxCHECK_MSG( Ok() &&
(rect.x >= 0) && (rect.y >= 0) &&
(rect.x+rect.width <= M_BMPDATA->m_width) && (rect.y+rect.height <= M_BMPDATA->m_height),
wxNullBitmap, wxT("invalid bitmap or bitmap region") );
wxBitmap ret( rect.width, rect.height, M_BMPDATA->m_bpp );
wxASSERT_MSG( ret.Ok(), wxT("GetSubBitmap error") );
if (ret.GetPixmap())
{
GdkGC *gc = gdk_gc_new( ret.GetPixmap() );
gdk_draw_pixmap( ret.GetPixmap(), gc, GetPixmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
gdk_gc_destroy( gc );
}
else
{
GdkGC *gc = gdk_gc_new( ret.GetBitmap() );
gdk_draw_bitmap( ret.GetBitmap(), gc, GetBitmap(), rect.x, rect.y, 0, 0, rect.width, rect.height );
gdk_gc_destroy( gc );
}
if (GetMask())
{
wxMask *mask = new wxMask;
GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
mask->m_bitmap = gdk_pixmap_new( parent, rect.width, rect.height, 1 );
GdkGC *gc = gdk_gc_new( mask->m_bitmap );
gdk_draw_bitmap( mask->m_bitmap, gc, M_BMPDATA->m_mask->m_bitmap, 0, 0, rect.x, rect.y, rect.width, rect.height );
gdk_gc_destroy( gc );
ret.SetMask( mask );
}
return ret;
}
bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
{
wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );