crash under FreeBSD corrected (patch by David Hobley)

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

/////////////////////////////////////////////////////////////////////////////
// Name:        imaglist.cpp
// Purpose:
// Author:      Robert Roebling
// Created:     01/02/97
// Id:
// Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
// Licence:   	wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation "imaglist.h"
#endif
 
#include "wx/imaglist.h"

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

IMPLEMENT_DYNAMIC_CLASS(wxImageList, wxObject)

wxImageList::wxImageList( int width, int height, bool WXUNUSED(mask), int WXUNUSED(initialCount) )
{
  m_width = width;
  m_height = height;
  Create();
}

wxImageList::~wxImageList()
{
}

int wxImageList::GetImageCount() const
{
  return m_images.Number();
}

bool wxImageList::Create()
{
  m_images.DeleteContents( TRUE );
  return TRUE;
}

int wxImageList::Add( const wxBitmap &bitmap )
{
  m_images.Append( new wxBitmap(bitmap) );
  return m_images.Number();
}

const wxBitmap *wxImageList::GetBitmap(int index) const {
  wxNode *node = m_images.Nth(index);
  if (node != NULL)
    return (wxBitmap*)node->Data();

  return (wxBitmap *) NULL;
}
    
bool wxImageList::Replace( int index, 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;
}

bool wxImageList::Remove( int index )
{
  wxNode *node = m_images.Nth( index );
  if (node) m_images.DeleteNode( node );
  return (node != NULL);
}

bool wxImageList::RemoveAll()
{
  m_images.Clear();
  return TRUE;
}

bool wxImageList::GetSize( int index, int &width, int &height ) const
{
#ifdef __WXGTK__

  width = m_width;
  height = m_height;
  
  return (m_images.Nth( index ) != NULL);
  
#else
  
  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;
    return FALSE;
  }

#endif  
}

bool wxImageList::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();
  
#ifdef __WXGTK__

  // As X doesn't have a standard size for icons, we resize here.
  // Otherwise we'd simply have to forbid different bitmap sizes.

  if ((m_width != bm->GetWidth()) ||
      (m_height != bm->GetHeight()))
  {
    bm->Resize( m_width, m_height );
  }
  
#endif  
  
  wxIcon *icon = (wxIcon*)bm;
  dc.DrawIcon( *icon, x, y, (flags & wxIMAGELIST_DRAW_TRANSPARENT) > 0 );

  return TRUE;
}