X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/8362e67ca7c330fd5ac67ab395d56bcc0c786494..abd474ea63667f727940a009cc3e0b23ba9f418f:/src/gtk/bitmap.cpp

diff --git a/src/gtk/bitmap.cpp b/src/gtk/bitmap.cpp
index 0a519cf24e..a50e8a8e26 100644
--- a/src/gtk/bitmap.cpp
+++ b/src/gtk/bitmap.cpp
@@ -79,6 +79,23 @@ wxMask::wxMask()
     m_bitmap = NULL;
 }
 
+wxMask::wxMask(const wxMask& mask)
+{
+    if ( !mask.m_bitmap )
+    {
+        m_bitmap = NULL;
+        return;
+    }
+
+    // create a copy of an existing mask
+    gint w, h;
+    gdk_drawable_get_size(mask.m_bitmap, &w, &h);
+    m_bitmap = gdk_pixmap_new(mask.m_bitmap, w, h, 1);
+
+    wxGtkObject<GdkGC> gc(gdk_gc_new(m_bitmap));
+    gdk_draw_drawable(m_bitmap, gc, mask.m_bitmap, 0, 0, 0, 0, -1, -1);
+}
+
 wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
 {
     m_bitmap = NULL;
@@ -214,6 +231,13 @@ public:
     int             m_height;
     int             m_bpp;
     bool m_alphaRequested;
+
+private:
+    // We don't provide a copy ctor as copying m_pixmap and m_pixbuf properly
+    // is expensive and we don't want to do it implicitly (and possibly
+    // accidentally). wxBitmap::CloneGDIRefData() which does need to do it does
+    // it explicitly itself.
+    wxDECLARE_NO_COPY_CLASS(wxBitmapRefData);
 };
 
 wxBitmapRefData::wxBitmapRefData(int width, int height, int depth)
@@ -589,10 +613,8 @@ wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
                 rect.y + h <= bmpData->m_height,
                 ret, wxT("invalid bitmap region"));
 
-    wxBitmapRefData* newRef = new wxBitmapRefData(*bmpData);
+    wxBitmapRefData * const newRef = new wxBitmapRefData(w, h, bmpData->m_bpp);
     ret.m_refData = newRef;
-    newRef->m_width = w;
-    newRef->m_height = h;
 
     if (bmpData->m_pixbuf)
     {
@@ -609,7 +631,6 @@ wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const
             newRef->m_pixmap, gc, bmpData->m_pixmap, rect.x, rect.y, 0, 0, w, h);
         g_object_unref(gc);
     }
-    newRef->m_mask = NULL;
     if (bmpData->m_mask && bmpData->m_mask->m_bitmap)
     {
         GdkPixmap* sub_mask = gdk_pixmap_new(bmpData->m_mask->m_bitmap, w, h, 1);
@@ -655,6 +676,8 @@ bool wxBitmap::LoadFile( const wxString &name, wxBitmapType type )
     else
 #endif
     {
+        wxUnusedVar(type); // The type is detected automatically by GDK.
+
         UnRef();
         GdkPixbuf* pixbuf = gdk_pixbuf_new_from_file(name.fn_str(), NULL);
         if (pixbuf)
@@ -777,7 +800,7 @@ bool wxBitmap::HasPixbuf() const
 void wxBitmap::SetPixbuf(GdkPixbuf* pixbuf)
 {
     UnRef();
-    
+
     if (!pixbuf)
         return;
 
@@ -842,7 +865,9 @@ wxGDIRefData* wxBitmap::CreateGDIRefData() const
 wxGDIRefData* wxBitmap::CloneGDIRefData(const wxGDIRefData* data) const
 {
     const wxBitmapRefData* oldRef = static_cast<const wxBitmapRefData*>(data);
-    wxBitmapRefData* newRef = new wxBitmapRefData(*oldRef);
+    wxBitmapRefData * const newRef = new wxBitmapRefData(oldRef->m_width,
+                                                         oldRef->m_height,
+                                                         oldRef->m_bpp);
     if (oldRef->m_pixmap != NULL)
     {
         newRef->m_pixmap = gdk_pixmap_new(
@@ -859,12 +884,7 @@ wxGDIRefData* wxBitmap::CloneGDIRefData(const wxGDIRefData* data) const
     }
     if (oldRef->m_mask != NULL)
     {
-        newRef->m_mask = new wxMask;
-        newRef->m_mask->m_bitmap = gdk_pixmap_new(
-            oldRef->m_mask->m_bitmap, oldRef->m_width, oldRef->m_height, 1);
-        wxGtkObject<GdkGC> gc(gdk_gc_new(newRef->m_mask->m_bitmap));
-        gdk_draw_drawable(newRef->m_mask->m_bitmap,
-            gc, oldRef->m_mask->m_bitmap, 0, 0, 0, 0, -1, -1);
+        newRef->m_mask = new wxMask(*oldRef->m_mask);
     }
 
     return newRef;