Fix drawing of bitmaps with masks in mirrored wxDC.

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

diff --git a/src/msw/icon.cpp b/src/msw/icon.cpp
index a7e1fcad9dc95ab7979fd27857664783b7003201..fdd9d501c33f7fc132a04d2ec35a5a5afd7ce244 100644 (file)
--- a/src/msw/icon.cpp
+++ b/src/msw/icon.cpp
@@ -1,12 +1,12 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        msw/icon.cpp
+// Name:        src/msw/icon.cpp
 // Purpose:     wxIcon class
 // Author:      Julian Smart
 // Modified by: 20.11.99 (VZ): don't derive from wxBitmap any more
 // Created:     04/01/98
 // RCS-ID:      $Id$
-// Copyright:   (c) Julian Smart and Markus Holzem
-// Licence:     wxWindows license
+// Copyright:   (c) Julian Smart
+// Licence:     wxWindows licence
 /////////////////////////////////////////////////////////////////////////////
 
 // ============================================================================
@@ -17,10 +17,6 @@
 // headers
 // ----------------------------------------------------------------------------
 
-#ifdef __GNUG__
-    #pragma implementation "icon.h"
-#endif
-
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
@@ -29,26 +25,21 @@
 #endif
 
 #ifndef WX_PRECOMP
-    #include "wx/defs.h"
     #include "wx/list.h"
     #include "wx/utils.h"
     #include "wx/app.h"
     #include "wx/icon.h"
     #include "wx/bitmap.h"
+    #include "wx/log.h"
 #endif
 
 #include "wx/msw/private.h"
 
-#if wxUSE_RESOURCE_LOADING_IN_MSW
-    #include "wx/msw/curico.h"
-    #include "wx/msw/curicop.h"
-#endif
-
 // ----------------------------------------------------------------------------
 // wxWin macros
 // ----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxIcon, wxIconBase)
+IMPLEMENT_DYNAMIC_CLASS(wxIcon, wxGDIObject)
 
 // ============================================================================
 // implementation
@@ -62,7 +53,9 @@ void wxIconRefData::Free()
 {
     if ( m_hIcon )
     {
+#ifndef __WXMICROWIN__
         ::DestroyIcon((HICON) m_hIcon);
+#endif
 
         m_hIcon = 0;
     }
@@ -79,51 +72,50 @@ wxIcon::wxIcon(const char bits[], int width, int height)
 }
 
 wxIcon::wxIcon(const wxString& iconfile,
-               long flags,
+               wxBitmapType type,
                int desiredWidth,
                int desiredHeight)
 
 {
-    LoadFile(iconfile, flags, desiredWidth, desiredHeight);
-}
-
-wxIcon::~wxIcon()
-{
+    LoadFile(iconfile, type, desiredWidth, desiredHeight);
 }
 
-void wxIcon::CopyFromBitmap(const wxBitmap& bmp)
+wxIcon::wxIcon(const wxIconLocation& loc)
 {
-#ifdef __WIN32__
-    wxMask *mask = bmp.GetMask();
-    if ( !mask )
+    // wxICOFileHandler accepts names in the format "filename;index"
+    wxString fullname = loc.GetFileName();
+    if ( loc.GetIndex() )
     {
-        // we must have a mask for an icon, so even if it's probably incorrect,
-        // do create it (grey is the "standard" transparent colour)
-        mask = new wxMask(bmp, *wxLIGHT_GREY);
+        fullname << wxT(';') << loc.GetIndex();
     }
+    //else: 0 is default
 
-    ICONINFO iconInfo;
-    iconInfo.fIcon = TRUE;  // we want an icon, not a cursor
-    iconInfo.hbmMask = wxInvertMask((HBITMAP)mask->GetMaskBitmap());
-    iconInfo.hbmColor = GetHbitmapOf(bmp);
-
-    /* GRG: black out the transparent area to preserve background
-     * colour, because Windows blits the original bitmap using
-     * SRCINVERT (XOR) after applying the mask to the dest rect.
-     */
-    HDC dcSrc = ::CreateCompatibleDC(NULL);
-    HDC dcDst = ::CreateCompatibleDC(NULL);
-    SelectObject(dcSrc, (HBITMAP)mask->GetMaskBitmap());
-    SelectObject(dcDst, iconInfo.hbmColor);
+    LoadFile(fullname, wxBITMAP_TYPE_ICO);
+}
 
-    BitBlt(dcDst, 0, 0, bmp.GetWidth(), bmp.GetHeight(), dcSrc, 0, 0, SRCAND);
+wxIcon::~wxIcon()
+{
+}
 
-    SelectObject(dcDst, NULL);
-    SelectObject(dcSrc, NULL);
-    DeleteDC(dcDst);
-    DeleteDC(dcSrc);
+wxObjectRefData *wxIcon::CloneRefData(const wxObjectRefData *dataOrig) const
+{
+    const wxIconRefData *
+        data = static_cast<const wxIconRefData *>(dataOrig);
+    if ( !data )
+        return NULL;
+
+    // we don't have to copy m_hIcon because we're only called from SetHICON()
+    // which overwrites m_hIcon anyhow currently
+    //
+    // and if we're called from SetWidth/Height/Depth(), it doesn't make sense
+    // to copy it neither as the handle would be inconsistent with the new size
+    return new wxIconRefData(*data);
+}
 
-    HICON hicon = ::CreateIconIndirect(&iconInfo);
+void wxIcon::CopyFromBitmap(const wxBitmap& bmp)
+{
+#ifndef __WXMICROWIN__
+    HICON hicon = wxBitmapToHICON(bmp);
     if ( !hicon )
     {
         wxLogLastError(wxT("CreateIconIndirect"));
@@ -133,36 +125,17 @@ void wxIcon::CopyFromBitmap(const wxBitmap& bmp)
         SetHICON((WXHICON)hicon);
         SetSize(bmp.GetWidth(), bmp.GetHeight());
     }
-
-    if ( !bmp.GetMask() )
-    {
-        // we created the mask, now delete it
-        delete mask;
-    }
-#else // Win16
-    // there are some functions in curico.cpp which probably could be used
-    // here...
-    // This probably doesn't work.
-    HBITMAP hBitmap = (HBITMAP) bmp.GetHBITMAP();
-    HICON hIcon = MakeIconFromBitmap((HINSTANCE) wxGetInstance(), hBitmap);
-    if (hIcon)
-    {
-        SetHICON((WXHICON)hIcon);
-        SetSize(bmp.GetWidth(), bmp.GetHeight());
-    }
-
-//    wxFAIL_MSG("Bitmap to icon conversion (including use of XPMs for icons) not implemented");
-#endif // Win32/16
+#endif // __WXMICROWIN__
 }
 
-void wxIcon::CreateIconFromXpm(const char **data)
+void wxIcon::CreateIconFromXpm(const char* const* data)
 {
     wxBitmap bmp(data);
     CopyFromBitmap(bmp);
 }
 
 bool wxIcon::LoadFile(const wxString& filename,
-                      long type,
+                      wxBitmapType type,
                       int desiredWidth, int desiredHeight)
 {
     UnRef();
@@ -171,10 +144,15 @@ bool wxIcon::LoadFile(const wxString& filename,
 
     if ( !handler )
     {
-        // say something?
-        return FALSE;
+        // load via wxBitmap which, in turn, uses wxImage allowing us to
+        // support more formats
+        wxBitmap bmp;
+        if ( !bmp.LoadFile(filename, type) )
+            return false;
+
+        CopyFromBitmap(bmp);
+        return true;
     }
 
     return handler->Load(this, filename, type, desiredWidth, desiredHeight);
 }
-