Ensure there is valid context for DrawRectangle

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

diff --git a/src/generic/imaglist.cpp b/src/generic/imaglist.cpp
index 103d86d9e5ce8dcddc56130a7479660e011139a4..4ca54a6e75fbd1c909989f3f1dabe65a529f8f1b 100644 (file)
--- a/src/generic/imaglist.cpp
+++ b/src/generic/imaglist.cpp
@@ -1,112 +1,274 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        imaglist.cpp
+// Name:        src/generic/imaglist.cpp

 // Purpose:
 // Author:      Robert Roebling
 // Purpose:
 // Author:      Robert Roebling

-// Created:     01/02/97
-// Id:
-// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
-// Licence:    wxWindows licence
+// Id:          $Id$
+// Copyright:   (c) 1998 Robert Roebling
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation "imaglist.h"
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+    #pragma hdrstop

 #endif
 #endif

- 
+
+#if wxUSE_IMAGLIST && !defined(wxHAS_NATIVE_IMAGELIST)
+

 #include "wx/imaglist.h"
 
 #include "wx/imaglist.h"
 

+#ifndef WX_PRECOMP
+    #include "wx/dc.h"
+    #include "wx/icon.h"
+    #include "wx/image.h"
+#endif
+

 //-----------------------------------------------------------------------------
 //  wxImageList
 //-----------------------------------------------------------------------------
 
 //-----------------------------------------------------------------------------
 //  wxImageList
 //-----------------------------------------------------------------------------
 

-IMPLEMENT_DYNAMIC_CLASS(wxImageList, wxObject)
+IMPLEMENT_DYNAMIC_CLASS(wxGenericImageList, wxObject)
+IMPLEMENT_DYNAMIC_CLASS(wxImageList, wxGenericImageList)

 
 

-wxImageList::wxImageList(int width, int height, bool mask, int initialCount)
+wxGenericImageList::wxGenericImageList( int width, int height, bool mask, int initialCount )

 {
 {

-  Create();
-};
+    (void)Create(width, height, mask, initialCount);
+}

 
 

-wxImageList::~wxImageList()
+wxGenericImageList::~wxGenericImageList()

 {
 {

-};
+    (void)RemoveAll();
+}

 
 

-int wxImageList::GetImageCount() const
+int wxGenericImageList::GetImageCount() const

 {
 {

-  return m_images.Number();
-};
+    return m_images.GetCount();
+}

 
 

-bool wxImageList::Create()
+bool wxGenericImageList::Create( int width, int height, bool WXUNUSED(mask), int WXUNUSED(initialCount) )

 {
 {

-  m_images.DeleteContents( TRUE );
-  return TRUE;
-};
+    m_width = width;
+    m_height = height;
+
+    return Create();
+}

 
 

-int wxImageList::Add( const wxBitmap &bitmap )
+bool wxGenericImageList::Create()

 {
 {

-  m_images.Append( new wxBitmap(bitmap) );
-  return m_images.Number();
-};
+    return true;
+}

 
 

-bool wxImageList::Replace( int index, const wxBitmap &bitmap )
+int wxGenericImageList::Add( const wxBitmap &bitmap )

 {
 {

-  wxNode *node = m_images.Nth( index );
-  if (!node) return FALSE;
-  
-  if (index == m_images.Number()-1)
-  {
-    m_images.DeleteNode( node );
-    m_images.Append( new wxBitmap(bitmap) );
-  }
-  else
-  {
-    wxNode *next = node->Next();
-    m_images.DeleteNode( node );
-    m_images.Insert( next, new wxBitmap(bitmap) );
-  };
-  
-  return TRUE;
-};
+    wxASSERT_MSG( (bitmap.GetWidth() >= m_width && bitmap.GetHeight() == m_height)
+                  || (m_width == 0 && m_height == 0),
+                  wxT("invalid bitmap size in wxImageList: this might work ")
+                  wxT("on this platform but definitely won't under Windows.") );
+
+    const int index = int(m_images.GetCount());

 
 

-bool wxImageList::Remove( int index )
+    if (bitmap.IsKindOf(wxCLASSINFO(wxIcon)))
+    {
+        m_images.Append( new wxIcon( (const wxIcon&) bitmap ) );
+    }
+    else
+    {
+        // Mimic behaviour of Windows ImageList_Add that automatically breaks up the added
+        // bitmap into sub-images of the correct size
+        if (m_width > 0 && bitmap.GetWidth() > m_width && bitmap.GetHeight() >= m_height)
+        {
+            int numImages = bitmap.GetWidth() / m_width;
+            for (int subIndex = 0; subIndex < numImages; subIndex++)
+            {
+                wxRect rect(m_width * subIndex, 0, m_width, m_height);
+                wxBitmap tmpBmp = bitmap.GetSubBitmap(rect);
+                m_images.Append( new wxBitmap(tmpBmp) );
+            }
+        }
+        else
+        {
+            m_images.Append( new wxBitmap(bitmap) );
+        }
+    }
+
+    if (m_width == 0 && m_height == 0)
+    {
+        m_width = bitmap.GetWidth();
+        m_height = bitmap.GetHeight();
+    }
+
+    return index;
+}
+
+int wxGenericImageList::Add( const wxBitmap& bitmap, const wxBitmap& mask )

 {
 {

-  wxNode *node = m_images.Nth( index );
-  if (node) m_images.DeleteNode( node );
-  return (node != NULL);
-};
+    wxBitmap bmp(bitmap);
+    if (mask.IsOk())
+        bmp.SetMask(new wxMask(mask));
+    return Add(bmp);
+}

 
 

-bool wxImageList::RemoveAll()
+int wxGenericImageList::Add( const wxBitmap& bitmap, const wxColour& maskColour )

 {
 {

-  m_images.Clear();
-  return TRUE;
-};
+    wxImage img = bitmap.ConvertToImage();
+    img.SetMaskColour(maskColour.Red(), maskColour.Green(), maskColour.Blue());
+    return Add(wxBitmap(img));
+}

 
 

-bool wxImageList::GetSize( int index, int &width, int &height ) const
+const wxBitmap *wxGenericImageList::GetBitmapPtr( int index ) const
+{
+    wxObjectList::compatibility_iterator node = m_images.Item( index );
+
+    wxCHECK_MSG( node, NULL, wxT("wrong index in image list") );
+
+    return (wxBitmap*)node->GetData();
+}
+
+// Get the bitmap
+wxBitmap wxGenericImageList::GetBitmap(int index) const
+{
+    const wxBitmap* bmp = GetBitmapPtr(index);
+    if (bmp)
+        return *bmp;
+    else
+        return wxNullBitmap;
+}
+
+// Get the icon
+wxIcon wxGenericImageList::GetIcon(int index) const
+{
+    const wxBitmap* bmp = GetBitmapPtr(index);
+    if (bmp)
+    {
+        wxIcon icon;
+        icon.CopyFromBitmap(*bmp);
+        return icon;
+    }
+    else
+        return wxNullIcon;
+}
+
+bool wxGenericImageList::Replace( int index, const wxBitmap &bitmap )
+{
+    wxObjectList::compatibility_iterator node = m_images.Item( index );
+
+    wxCHECK_MSG( node, false, wxT("wrong index in image list") );
+
+    wxBitmap* newBitmap = (bitmap.IsKindOf(wxCLASSINFO(wxIcon))) ?
+                             #if defined(__VISAGECPP__)
+                               //just can't do this in VisualAge now, with all this new Bitmap-Icon stuff
+                               //so construct it from a bitmap object until I can figure this nonsense out. (DW)
+                               new wxBitmap(bitmap)
+                             #else
+                               new wxBitmap( (const wxIcon&) bitmap )
+                             #endif
+                               : new wxBitmap(bitmap) ;
+
+    if (index == (int) m_images.GetCount() - 1)
+    {
+        delete node->GetData();
+        m_images.Erase( node );
+        m_images.Append( newBitmap );
+    }
+    else
+    {
+        wxObjectList::compatibility_iterator next = node->GetNext();
+        delete node->GetData();
+        m_images.Erase( node );
+        m_images.Insert( next, newBitmap );
+    }
+
+    return true;
+}
+
+bool wxGenericImageList::Replace( int index, const wxBitmap &bitmap, const wxBitmap &mask )
+{
+    wxObjectList::compatibility_iterator node = m_images.Item( index );
+
+    wxCHECK_MSG( node, false, wxT("wrong index in image list") );
+
+    wxBitmap* newBitmap = (bitmap.IsKindOf(wxCLASSINFO(wxIcon))) ?
+                             #if defined(__VISAGECPP__)
+                               //just can't do this in VisualAge now, with all this new Bitmap-Icon stuff
+                               //so construct it from a bitmap object until I can figure this nonsense out. (DW)
+                               new wxBitmap(bitmap)
+                             #else
+                               new wxBitmap( (const wxIcon&) bitmap )
+                             #endif
+                               : new wxBitmap(bitmap) ;
+
+    if (index == (int) m_images.GetCount() - 1)
+    {
+        delete node->GetData();
+        m_images.Erase( node );
+        m_images.Append( newBitmap );
+    }
+    else
+    {
+        wxObjectList::compatibility_iterator next = node->GetNext();
+        delete node->GetData();
+        m_images.Erase( node );
+        m_images.Insert( next, newBitmap );
+    }
+
+    if (mask.IsOk())
+        newBitmap->SetMask(new wxMask(mask));
+
+    return true;
+}
+
+bool wxGenericImageList::Remove( int index )
+{
+    wxObjectList::compatibility_iterator node = m_images.Item( index );
+
+    wxCHECK_MSG( node, false, wxT("wrong index in image list") );
+
+    delete node->GetData();
+    m_images.Erase( node );
+
+    return true;
+}
+
+bool wxGenericImageList::RemoveAll()
+{
+    WX_CLEAR_LIST(wxObjectList, m_images);
+    m_images.Clear();
+
+    return true;
+}
+
+bool wxGenericImageList::GetSize( int index, int &width, int &height ) const

 {
 {

-  wxNode *node = m_images.Nth( index );
-  if (node)
-  {
-    wxBitmap *bm = (wxBitmap*)node->Data();
-    width = bm->GetWidth();
-    height = bm->GetHeight();
-    return TRUE;
-  }
-  else
-  {

     width = 0;
     height = 0;
     width = 0;
     height = 0;

-    return FALSE;
-  };
-};

 
 

-bool wxImageList::Draw( int index, wxDC &dc, 
-                        int x, int y,
-                        int WXUNUSED(flags), bool WXUNUSED(solidBackground) )
+    wxObjectList::compatibility_iterator node = m_images.Item( index );
+
+    wxCHECK_MSG( node, false, wxT("wrong index in image list") );
+
+    wxBitmap *bm = (wxBitmap*)node->GetData();
+    width = bm->GetWidth();
+    height = bm->GetHeight();
+
+    return true;
+}
+
+bool wxGenericImageList::Draw( int index, wxDC &dc, int x, int y,
+                        int flags, bool WXUNUSED(solidBackground) )

 {
 {

-  wxNode *node = m_images.Nth( index );
-  if (!node) return FALSE;
-  wxBitmap *bm = (wxBitmap*)node->Data();
-  wxIcon *icon = (wxIcon*)bm;
-  dc.DrawIcon( *icon, x, y );
-  return TRUE;
-};
+    wxObjectList::compatibility_iterator node = m_images.Item( index );
+
+    wxCHECK_MSG( node, false, wxT("wrong index in image list") );
+
+    wxBitmap *bm = (wxBitmap*)node->GetData();
+
+    if (bm->IsKindOf(wxCLASSINFO(wxIcon)))
+        dc.DrawIcon( * ((wxIcon*) bm), x, y);
+    else
+        dc.DrawBitmap( *bm, x, y, (flags & wxIMAGELIST_DRAW_TRANSPARENT) > 0 );

 
 

+    return true;
+}

 
 

+#endif // wxUSE_IMAGLIST