src/generic/imaglist.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/generic/imaglist.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Id:          $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 // For compilers that support precompilation, includes "wx.h".
  11 #include "wx/wxprec.h"
  12
  13 #ifdef __BORLANDC__
  14     #pragma hdrstop
  15 #endif
  16
  17 #if wxUSE_IMAGLIST && !defined(wxHAS_NATIVE_IMAGELIST)
  18
  19 #include "wx/imaglist.h"
  20
  21 #ifndef WX_PRECOMP
  22     #include "wx/dc.h"
  23     #include "wx/icon.h"
  24     #include "wx/image.h"
  25 #endif
  26
  27 //-----------------------------------------------------------------------------
  28 //  wxImageList
  29 //-----------------------------------------------------------------------------
  30
  31 IMPLEMENT_DYNAMIC_CLASS(wxGenericImageList, wxObject)
  32 IMPLEMENT_DYNAMIC_CLASS(wxImageList, wxGenericImageList)
  33
  34 wxGenericImageList::wxGenericImageList( int width, int height, bool mask, int initialCount )
  35 {
  36     (void)Create(width, height, mask, initialCount);
  37 }
  38
  39 wxGenericImageList::~wxGenericImageList()
  40 {
  41     (void)RemoveAll();
  42 }
  43
  44 int wxGenericImageList::GetImageCount() const
  45 {
  46     return m_images.GetCount();
  47 }
  48
  49 bool wxGenericImageList::Create( int width, int height, bool WXUNUSED(mask), int WXUNUSED(initialCount) )
  50 {
  51     m_width = width;
  52     m_height = height;
  53
  54     return Create();
  55 }
  56
  57 bool wxGenericImageList::Create()
  58 {
  59     return true;
  60 }
  61
  62 int wxGenericImageList::Add( const wxBitmap &bitmap )
  63 {
  64     wxASSERT_MSG( (bitmap.GetWidth() >= m_width && bitmap.GetHeight() == m_height)
  65                   || (m_width == 0 && m_height == 0),
  66                   wxT("invalid bitmap size in wxImageList: this might work ")
  67                   wxT("on this platform but definitely won't under Windows.") );
  68
  69     const int index = int(m_images.GetCount());
  70
  71     if (bitmap.IsKindOf(CLASSINFO(wxIcon)))
  72     {
  73         m_images.Append( new wxIcon( (const wxIcon&) bitmap ) );
  74     }
  75     else
  76     {
  77         // Mimic behaviour of Windows ImageList_Add that automatically breaks up the added
  78         // bitmap into sub-images of the correct size
  79         if (m_width > 0 && bitmap.GetWidth() > m_width && bitmap.GetHeight() >= m_height)
  80         {
  81             int numImages = bitmap.GetWidth() / m_width;
  82             for (int subIndex = 0; subIndex < numImages; subIndex++)
  83             {
  84                 wxRect rect(m_width * subIndex, 0, m_width, m_height);
  85                 wxBitmap tmpBmp = bitmap.GetSubBitmap(rect);
  86                 m_images.Append( new wxBitmap(tmpBmp) );
  87             }
  88         }
  89         else
  90         {
  91             m_images.Append( new wxBitmap(bitmap) );
  92         }
  93     }
  94
  95     if (m_width == 0 && m_height == 0)
  96     {
  97         m_width = bitmap.GetWidth();
  98         m_height = bitmap.GetHeight();
  99     }
 100
 101     return index;
 102 }
 103
 104 int wxGenericImageList::Add( const wxBitmap& bitmap, const wxBitmap& mask )
 105 {
 106     wxBitmap bmp(bitmap);
 107     if (mask.IsOk())
 108         bmp.SetMask(new wxMask(mask));
 109     return Add(bmp);
 110 }
 111
 112 int wxGenericImageList::Add( const wxBitmap& bitmap, const wxColour& maskColour )
 113 {
 114     wxImage img = bitmap.ConvertToImage();
 115     img.SetMaskColour(maskColour.Red(), maskColour.Green(), maskColour.Blue());
 116     return Add(wxBitmap(img));
 117 }
 118
 119 const wxBitmap *wxGenericImageList::GetBitmapPtr( int index ) const
 120 {
 121     wxObjectList::compatibility_iterator node = m_images.Item( index );
 122
 123     wxCHECK_MSG( node, NULL, wxT("wrong index in image list") );
 124
 125     return (wxBitmap*)node->GetData();
 126 }
 127
 128 // Get the bitmap
 129 wxBitmap wxGenericImageList::GetBitmap(int index) const
 130 {
 131     const wxBitmap* bmp = GetBitmapPtr(index);
 132     if (bmp)
 133         return *bmp;
 134     else
 135         return wxNullBitmap;
 136 }
 137
 138 // Get the icon
 139 wxIcon wxGenericImageList::GetIcon(int index) const
 140 {
 141     const wxBitmap* bmp = GetBitmapPtr(index);
 142     if (bmp)
 143     {
 144         wxIcon icon;
 145         icon.CopyFromBitmap(*bmp);
 146         return icon;
 147     }
 148     else
 149         return wxNullIcon;
 150 }
 151
 152 bool wxGenericImageList::Replace( int index, const wxBitmap &bitmap )
 153 {
 154     wxObjectList::compatibility_iterator node = m_images.Item( index );
 155
 156     wxCHECK_MSG( node, false, wxT("wrong index in image list") );
 157
 158     wxBitmap* newBitmap = (bitmap.IsKindOf(CLASSINFO(wxIcon))) ?
 159                              #if defined(__VISAGECPP__)
 160                                //just can't do this in VisualAge now, with all this new Bitmap-Icon stuff
 161                                //so construct it from a bitmap object until I can figure this nonsense out. (DW)
 162                                new wxBitmap(bitmap)
 163                              #else
 164                                new wxBitmap( (const wxIcon&) bitmap )
 165                              #endif
 166                                : new wxBitmap(bitmap) ;
 167
 168     if (index == (int) m_images.GetCount() - 1)
 169     {
 170         delete node->GetData();
 171         m_images.Erase( node );
 172         m_images.Append( newBitmap );
 173     }
 174     else
 175     {
 176         wxObjectList::compatibility_iterator next = node->GetNext();
 177         delete node->GetData();
 178         m_images.Erase( node );
 179         m_images.Insert( next, newBitmap );
 180     }
 181
 182     return true;
 183 }
 184
 185 bool wxGenericImageList::Replace( int index, const wxBitmap &bitmap, const wxBitmap &mask )
 186 {
 187     wxObjectList::compatibility_iterator node = m_images.Item( index );
 188
 189     wxCHECK_MSG( node, false, wxT("wrong index in image list") );
 190
 191     wxBitmap* newBitmap = (bitmap.IsKindOf(CLASSINFO(wxIcon))) ?
 192                              #if defined(__VISAGECPP__)
 193                                //just can't do this in VisualAge now, with all this new Bitmap-Icon stuff
 194                                //so construct it from a bitmap object until I can figure this nonsense out. (DW)
 195                                new wxBitmap(bitmap)
 196                              #else
 197                                new wxBitmap( (const wxIcon&) bitmap )
 198                              #endif
 199                                : new wxBitmap(bitmap) ;
 200
 201     if (index == (int) m_images.GetCount() - 1)
 202     {
 203         delete node->GetData();
 204         m_images.Erase( node );
 205         m_images.Append( newBitmap );
 206     }
 207     else
 208     {
 209         wxObjectList::compatibility_iterator next = node->GetNext();
 210         delete node->GetData();
 211         m_images.Erase( node );
 212         m_images.Insert( next, newBitmap );
 213     }
 214
 215     if (mask.IsOk())
 216         newBitmap->SetMask(new wxMask(mask));
 217
 218     return true;
 219 }
 220
 221 bool wxGenericImageList::Remove( int index )
 222 {
 223     wxObjectList::compatibility_iterator node = m_images.Item( index );
 224
 225     wxCHECK_MSG( node, false, wxT("wrong index in image list") );
 226
 227     delete node->GetData();
 228     m_images.Erase( node );
 229
 230     return true;
 231 }
 232
 233 bool wxGenericImageList::RemoveAll()
 234 {
 235     WX_CLEAR_LIST(wxObjectList, m_images);
 236     m_images.Clear();
 237
 238     return true;
 239 }
 240
 241 bool wxGenericImageList::GetSize( int index, int &width, int &height ) const
 242 {
 243     width = 0;
 244     height = 0;
 245
 246     wxObjectList::compatibility_iterator node = m_images.Item( index );
 247
 248     wxCHECK_MSG( node, false, wxT("wrong index in image list") );
 249
 250     wxBitmap *bm = (wxBitmap*)node->GetData();
 251     width = bm->GetWidth();
 252     height = bm->GetHeight();
 253
 254     return true;
 255 }
 256
 257 bool wxGenericImageList::Draw( int index, wxDC &dc, int x, int y,
 258                         int flags, bool WXUNUSED(solidBackground) )
 259 {
 260     wxObjectList::compatibility_iterator node = m_images.Item( index );
 261
 262     wxCHECK_MSG( node, false, wxT("wrong index in image list") );
 263
 264     wxBitmap *bm = (wxBitmap*)node->GetData();
 265
 266     if (bm->IsKindOf(CLASSINFO(wxIcon)))
 267         dc.DrawIcon( * ((wxIcon*) bm), x, y);
 268     else
 269         dc.DrawBitmap( *bm, x, y, (flags & wxIMAGELIST_DRAW_TRANSPARENT) > 0 );
 270
 271     return true;
 272 }
 273
 274 #endif // wxUSE_IMAGLIST