Attempt to make wxWindows play better with XP themes

[wxWidgets.git] / src / msw / imaglist.cpp

diff --git a/src/msw/imaglist.cpp b/src/msw/imaglist.cpp
index 5140135aebb0edbfa60d7c9eb6b72d905a83e9e1..d9526df4ed04b55ce42a7a56fbd492f594735a76 100644 (file)
--- a/src/msw/imaglist.cpp
+++ b/src/msw/imaglist.cpp
@@ -5,8 +5,8 @@
 // Modified by:
 // Created:     04/01/98
 // RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:     wxWindows license
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
@@ -46,7 +46,7 @@
 #include "wx/msw/imaglist.h"
 #include "wx/msw/private.h"
 
-#if defined(__WIN95__) && !((defined(__GNUWIN32_OLD__) || defined(__TWIN32__)) && !defined(__CYGWIN10__))
+#if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) && !defined(__CYGWIN10__))
     #include <commctrl.h>
 #endif
 
@@ -162,10 +162,6 @@ int wxImageList::Add(const wxBitmap& bitmap, const wxBitmap& mask)
 // 'bitmap'.
 int wxImageList::Add(const wxBitmap& bitmap, const wxColour& maskColour)
 {
-#ifdef __TWIN32__
-    wxFAIL_MSG(_T("ImageList_AddMasked not implemented in TWIN32"));
-    return -1;
-#else
     int index = ImageList_AddMasked(GetHImageList(),
                                     GetHbitmapOf(bitmap),
                                     wxColourToRGB(maskColour));
@@ -175,7 +171,6 @@ int wxImageList::Add(const wxBitmap& bitmap, const wxColour& maskColour)
     }
 
     return index;
-#endif
 }
 
 // Adds a bitmap and mask from an icon.
@@ -196,10 +191,6 @@ int wxImageList::Add(const wxIcon& icon)
 bool wxImageList::Replace(int index,
                           const wxBitmap& bitmap, const wxBitmap& mask)
 {
-#ifdef __TWIN32__
-    wxFAIL_MSG(_T("ImageList_Replace not implemented in TWIN32"));
-    return FALSE;
-#else
     HBITMAP hbmpMask = GetMaskForImage(bitmap, mask);
 
     bool ok = ImageList_Replace(GetHImageList(), index,
@@ -212,7 +203,6 @@ bool wxImageList::Replace(int index,
     ::DeleteObject(hbmpMask);
 
     return ok;
-#endif
 }
 
 // Replaces a bitmap and mask from an icon.
@@ -230,10 +220,6 @@ bool wxImageList::Replace(int i, const wxIcon& icon)
 // Removes the image at the given index.
 bool wxImageList::Remove(int index)
 {
-#ifdef __TWIN32__
-    wxFAIL_MSG(_T("ImageList_Replace not implemented in TWIN32"));
-    return FALSE;
-#else
     bool ok = ImageList_Remove(GetHImageList(), index) != 0;
     if ( !ok )
     {
@@ -241,7 +227,6 @@ bool wxImageList::Remove(int index)
     }
 
     return ok;
-#endif
 }
 
 // Remove all images
@@ -269,10 +254,6 @@ bool wxImageList::Draw(int index,
                        int flags,
                        bool solidBackground)
 {
-#ifdef __TWIN32__
-    wxFAIL_MSG(_T("ImageList_Replace not implemented in TWIN32"));
-    return FALSE;
-#else
     HDC hDC = GetHdcOf(dc);
     wxCHECK_MSG( hDC, FALSE, _T("invalid wxDC in wxImageList::Draw") );
 
@@ -305,7 +286,6 @@ bool wxImageList::Draw(int index,
     }
 
     return ok;
-#endif
 }
 
 // ----------------------------------------------------------------------------
@@ -315,37 +295,41 @@ bool wxImageList::Draw(int index,
 static HBITMAP GetMaskForImage(const wxBitmap& bitmap, const wxBitmap& mask)
 {
     HBITMAP hbmpMask;
-    wxBitmap *bmpMask = NULL;
+    wxMask *pMask;
+    bool deleteMask = FALSE;
 
     if ( mask.Ok() )
     {
         hbmpMask = GetHbitmapOf(mask);
+        pMask = NULL;
     }
     else
     {
-        wxMask *pMask = bitmap.GetMask();
-        if ( pMask )
-        {
-            hbmpMask = (HBITMAP)pMask->GetMaskBitmap();
-        }
-        else
+        pMask = bitmap.GetMask();
+        if ( !pMask )
         {
-            // create a non transparent mask - apparently, this is needed under
-            // Win9x (it doesn't behave correctly if it's passed 0 mask)
-            bmpMask = new wxBitmap(bitmap.GetWidth(), bitmap.GetHeight(), 1);
+            // use the light grey count as transparent: the trouble here is
+            // that the light grey might have been changed by Windows behind
+            // our back, so use the standard colour map to get its real value
+            wxCOLORMAP *cmap = wxGetStdColourMap();
+            wxColour col;
+            wxRGBToColour(col, cmap[wxSTD_COL_BTNFACE].from);
 
-            wxMemoryDC dcMem;
-            dcMem.SelectObject(*bmpMask);
-            dcMem.Clear();
-            dcMem.SelectObject(wxNullBitmap);
+            pMask = new wxMask(bitmap, col);
 
-            hbmpMask = GetHbitmapOf(*bmpMask);
+            deleteMask = TRUE;
         }
+
+        hbmpMask = (HBITMAP)pMask->GetMaskBitmap();
     }
 
     // windows mask convention is opposite to the wxWindows one
     HBITMAP hbmpMaskInv = wxInvertMask(hbmpMask);
-    delete bmpMask;
+
+    if ( deleteMask )
+    {
+        delete pMask;
+    }
 
     return hbmpMaskInv;
 }