use SS_CENTERIMAGE to prevent wxStaticBitmap from stretching its bitmap; also a face lift for control creation code

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@18388 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

docs/changes.txt

@@ -19,6 +19,10 @@ wxGTK:
 
 - fixed wxMenu::Remove (John Skiff and Benjamin Williams)
 
+wxMSW:
+
+- wxStaticBitmap doesn't stretch its bitmap any longer (like other ports)
+
 All:
 
 - Implemented GetEditControl for wxGenericTreeCtrl (Peter

include/wx/msw/statbmp.h

@@ -36,6 +36,8 @@ public:
                    long style = 0,
                    const wxString& name = wxStaticBitmapNameStr)
     {
+        Init();
+
         Create(parent, id, label, pos, size, style, name);
     }
 
@@ -55,11 +57,23 @@ public:
     // assert failure is provoked by an attempt to get an icon from bitmap or
     // vice versa
     wxIcon GetIcon() const
-        { wxASSERT( m_isIcon ); return *(wxIcon *)m_image; }
-    wxBitmap GetBitmap() const
-        { wxASSERT( !m_isIcon ); return *(wxBitmap *)m_image; }
+    {
+        wxASSERT_MSG( m_isIcon, _T("no icon in this wxStaticBitmap") );
 
-    // IMPLEMENTATION
+        return *(wxIcon *)m_image;
+    }
+
+    wxBitmap GetBitmap() const
+    {
+        wxASSERT_MSG( !m_isIcon, _T("no bitmap in this wxStaticBitmap") );
+
+        return *(wxBitmap *)m_image;
+    }
+
+    // implementation only from now on
+    // -------------------------------
+
+    // implement base class virtuals
 #ifdef __WIN16__
     virtual bool MSWOnDraw(WXDRAWITEMSTRUCT *item);
 #endif // __WIN16__
@@ -67,7 +81,9 @@ public:
 
 protected:
     virtual wxSize DoGetBestSize() const;
+    virtual WXDWORD MSWGetStyle(long style, WXDWORD *exstyle) const;
 
+    // ctor/dtor helpers
     void Init() { m_isIcon = TRUE; m_image = NULL; }
     void Free();
 

src/msw/statbmp.cpp

@@ -90,33 +90,16 @@ static wxGDIImage* ConvertImage( const wxGDIImage& bitmap )
 
 #endif
 
-bool wxStaticBitmap::Create(wxWindow *parent, wxWindowID id,
+bool wxStaticBitmap::Create(wxWindow *parent,
+                            wxWindowID id,
                             const wxGDIImage& bitmap,
                             const wxPoint& pos,
                             const wxSize& size,
                             long style,
                             const wxString& name)
 {
-    Init();
-
-    SetName(name);
-    if (parent)
-        parent->AddChild(this);
-
-    m_backgroundColour = parent->GetBackgroundColour() ;
-    m_foregroundColour = parent->GetForegroundColour() ;
-
-    if ( id == -1 )
-        m_windowId = (int)NewControlId();
-    else
-        m_windowId = id;
-
-    int x = pos.x;
-    int y = pos.y;
-    int width = size.x;
-    int height = size.y;
-
-    m_windowStyle = style;
+    if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
+        return FALSE;
 
     // we may have either bitmap or icon: if a bitmap with mask is passed, we
     // will transform it to an icon ourselves because otherwise the mask will
@@ -127,55 +110,48 @@ bool wxStaticBitmap::Create(wxWindow *parent, wxWindowID id,
 #ifdef __WIN16__
     wxASSERT_MSG( !m_isIcon, "Icons are not supported in wxStaticBitmap under WIN16." );
     image = &bitmap;
-#endif
-
-#ifndef __WIN16__
+#else // Win32
     image = ConvertImage( bitmap );
     m_isIcon = image->IsKindOf( CLASSINFO(wxIcon) );
-#endif
+#endif // Win16/32
 
+    // create the native control
+    if ( !MSWCreateControl(
 #ifdef __WIN32__
-    // create a static control with either SS_BITMAP or SS_ICON style depending
-    // on what we have here
-    const wxChar *classname = wxT("STATIC");
-    int winstyle = m_isIcon ? SS_ICON : SS_BITMAP;
+                           _T("STATIC"),
 #else // Win16
-    const wxChar *classname = wxT("BUTTON");
-    int winstyle = BS_OWNERDRAW;
-#endif // Win32
-
-    if ( m_windowStyle & wxCLIP_SIBLINGS )
-        winstyle |= WS_CLIPSIBLINGS;
-
-
-    m_hWnd = (WXHWND)::CreateWindow
-                       (
-                        classname,
-                        wxT(""),
-                        // NOT DISABLED!!! We want to move it in Dialog Editor.
-                        winstyle | WS_CHILD | WS_VISIBLE /* | WS_CLIPSIBLINGS */ , // | WS_DISABLED,
-                        0, 0, 0, 0,
-                        (HWND)parent->GetHWND(),
-                        (HMENU)m_windowId,
-                        wxGetInstance(),
-                        NULL
-                       );
-
-    wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create static bitmap") );
+                           _T("BUTTON"),
+#endif // Win32/16
+                           _T(""), pos, size, style) )
+    {
+        // control creation failed
+        return FALSE;
+    }
 
     // no need to delete the new image
     SetImageNoCopy(image);
 
-    // Subclass again for purposes of dialog editing mode
-    SubclassWin(m_hWnd);
-
-    SetFont(GetParent()->GetFont());
-
-    SetSize(x, y, width, height);
-
     return TRUE;
 }
 
+WXDWORD wxStaticBitmap::MSWGetStyle(long style, WXDWORD *exstyle) const
+{
+    WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
+
+#ifdef __WIN32__
+    // what kind of control are we?
+    msStyle |= m_isIcon ? SS_ICON : SS_BITMAP;
+
+    // we use SS_CENTERIMAGE to prevent the control from resizing the bitmap to
+    // fit to its size -- this is unexpected and doesn't happen in other ports
+    msStyle |= SS_CENTERIMAGE;
+#else // Win16
+    msStyle |= BS_OWNERDRAW;
+#endif // Win32/16
+
+    return msStyle;
+}
+
 bool wxStaticBitmap::ImageIsOk() const
 {
     return m_image && m_image->Ok();