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
  18
  19 #ifndef __WXPALMOS__
  20
  21 #include "wx/generic/imaglist.h"
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/dc.h"
  25 #endif
  26
  27 #include "wx/icon.h"
  28 #include "wx/image.h"
  29
  30 //-----------------------------------------------------------------------------
  31 //  wxImageList
  32 //-----------------------------------------------------------------------------
  33
  34 IMPLEMENT_DYNAMIC_CLASS(wxGenericImageList, wxObject)
  35
  36 #if !defined(__WXMSW__) || defined(__WXUNIVERSAL__)
  37 /*
  38  * wxImageList has to be a real class or we have problems with
  39  * the run-time information.
  40  */
  41
  42 IMPLEMENT_DYNAMIC_CLASS(wxImageList, wxGenericImageList)
  43 #endif
  44
  45 wxGenericImageList::wxGenericImageList( int width, int height, bool mask, int initialCount )
  46 {
  47     (void)Create(width, height, mask, initialCount);
  48 }
  49
  50 wxGenericImageList::~wxGenericImageList()
  51 {
  52     (void)RemoveAll();
  53 }
  54
  55 int wxGenericImageList::GetImageCount() const
  56 {
  57     return m_images.GetCount();
  58 }
  59
  60 bool wxGenericImageList::Create( int width, int height, bool WXUNUSED(mask), int WXUNUSED(initialCount) )
  61 {
  62     m_width = width;
  63     m_height = height;
  64
  65     return Create();
  66 }
  67
  68 bool wxGenericImageList::Create()
  69 {
  70     return true;
  71 }
  72
  73 int wxGenericImageList::Add( const wxBitmap &bitmap )
  74 {
  75     wxASSERT_MSG( (bitmap.GetWidth() >= m_width && bitmap.GetHeight() == m_height)
  76                   || (m_width == 0 && m_height == 0),
  77                   _T("invalid bitmap size in wxImageList: this might work ")
  78                   _T("on this platform but definitely won't under Windows.") );
  79
  80     if (bitmap.IsKindOf(CLASSINFO(wxIcon)))
  81     {
  82         m_images.Append( new wxIcon( (const wxIcon&) bitmap ) );
  83     }
  84     else
  85     {
  86         // Mimic behavior of Windows ImageList_Add that automatically breaks up the added
  87         // bitmap into sub-images of the correct size
  88         if (m_width > 0 && bitmap.GetWidth() > m_width && bitmap.GetHeight() >= m_height)
  89         {
  90             int numImages = bitmap.GetWidth() / m_width;
  91             for (int subIndex = 0; subIndex < numImages; subIndex++)
  92             {
  93                 wxRect rect(m_width * subIndex, 0, m_width, m_height);
  94                 wxBitmap tmpBmp = bitmap.GetSubBitmap(rect);
  95                 m_images.Append( new wxBitmap(tmpBmp) );
  96             }
  97         }
  98         else
  99         {
 100             m_images.Append( new wxBitmap(bitmap) );
 101         }
 102     }
 103
 104     if (m_width == 0 && m_height == 0)
 105     {
 106         m_width = bitmap.GetWidth();
 107         m_height = bitmap.GetHeight();
 108     }
 109
 110     return m_images.GetCount()-1;
 111 }
 112
 113 int wxGenericImageList::Add( const wxBitmap& bitmap, const wxBitmap& mask )
 114 {
 115     wxBitmap bmp(bitmap);
 116     if (mask.Ok())
 117         bmp.SetMask(new wxMask(mask));
 118     return Add(bmp);
 119 }
 120
 121 int wxGenericImageList::Add( const wxBitmap& bitmap, const wxColour& maskColour )
 122 {
 123     wxImage img = bitmap.ConvertToImage();
 124     img.SetMaskColour(maskColour.Red(), maskColour.Green(), maskColour.Blue());
 125     return Add(wxBitmap(img));
 126 }
 127
 128 const wxBitmap *wxGenericImageList::GetBitmapPtr( int index ) const
 129 {
 130     wxList::compatibility_iterator node = m_images.Item( index );
 131
 132     wxCHECK_MSG( node, (wxBitmap *) NULL, wxT("wrong index in image list") );
 133
 134     return (wxBitmap*)node->GetData();
 135 }
 136
 137 // Get the bitmap
 138 wxBitmap wxGenericImageList::GetBitmap(int index) const
 139 {
 140     const wxBitmap* bmp = GetBitmapPtr(index);
 141     if (bmp)
 142         return *bmp;
 143     else
 144         return wxNullBitmap;
 145 }
 146
 147 // Get the icon
 148 wxIcon wxGenericImageList::GetIcon(int index) const
 149 {
 150     const wxBitmap* bmp = GetBitmapPtr(index);
 151     if (bmp)
 152     {
 153         wxIcon icon;
 154         icon.CopyFromBitmap(*bmp);
 155         return icon;
 156     }
 157     else
 158         return wxNullIcon;
 159 }
 160
 161 bool wxGenericImageList::Replace( int index, const wxBitmap &bitmap )
 162 {
 163     wxList::compatibility_iterator node = m_images.Item( index );
 164
 165     wxCHECK_MSG( node, false, wxT("wrong index in image list") );
 166
 167     wxBitmap* newBitmap = (bitmap.IsKindOf(CLASSINFO(wxIcon))) ?
 168                              #if defined(__VISAGECPP__)
 169                                //just can't do this in VisualAge now, with all this new Bitmap-Icon stuff
 170                                //so construct it from a bitmap object until I can figure this nonsense out. (DW)
 171                                new wxBitmap(bitmap)
 172                              #else
 173                                new wxBitmap( (const wxIcon&) bitmap )
 174                              #endif
 175                                : new wxBitmap(bitmap) ;
 176
 177     if (index == (int) m_images.GetCount() - 1)
 178     {
 179         delete node->GetData();
 180         m_images.Erase( node );
 181         m_images.Append( newBitmap );
 182     }
 183     else
 184     {
 185         wxList::compatibility_iterator next = node->GetNext();
 186         delete node->GetData();
 187         m_images.Erase( node );
 188         m_images.Insert( next, newBitmap );
 189     }
 190
 191     return true;
 192 }
 193
 194 bool wxGenericImageList::Replace( int index, const wxBitmap &bitmap, const wxBitmap &mask )
 195 {
 196     wxList::compatibility_iterator node = m_images.Item( index );
 197
 198     wxCHECK_MSG( node, false, wxT("wrong index in image list") );
 199
 200     wxBitmap* newBitmap = (bitmap.IsKindOf(CLASSINFO(wxIcon))) ?
 201                              #if defined(__VISAGECPP__)
 202                                //just can't do this in VisualAge now, with all this new Bitmap-Icon stuff
 203                                //so construct it from a bitmap object until I can figure this nonsense out. (DW)
 204                                new wxBitmap(bitmap)
 205                              #else
 206                                new wxBitmap( (const wxIcon&) bitmap )
 207                              #endif
 208                                : new wxBitmap(bitmap) ;
 209
 210     if (index == (int) m_images.GetCount() - 1)
 211     {
 212         delete node->GetData();
 213         m_images.Erase( node );
 214         m_images.Append( newBitmap );
 215     }
 216     else
 217     {
 218         wxList::compatibility_iterator next = node->GetNext();
 219         delete node->GetData();
 220         m_images.Erase( node );
 221         m_images.Insert( next, newBitmap );
 222     }
 223
 224     if (mask.Ok())
 225         newBitmap->SetMask(new wxMask(mask));
 226
 227     return true;
 228 }
 229
 230 bool wxGenericImageList::Remove( int index )
 231 {
 232     wxList::compatibility_iterator node = m_images.Item( index );
 233
 234     wxCHECK_MSG( node, false, wxT("wrong index in image list") );
 235
 236     delete node->GetData();
 237     m_images.Erase( node );
 238
 239     return true;
 240 }
 241
 242 bool wxGenericImageList::RemoveAll()
 243 {
 244     WX_CLEAR_LIST(wxList, m_images);
 245     m_images.Clear();
 246
 247     return true;
 248 }
 249
 250 bool wxGenericImageList::GetSize( int index, int &width, int &height ) const
 251 {
 252     width = 0;
 253     height = 0;
 254
 255     wxList::compatibility_iterator node = m_images.Item( index );
 256
 257     wxCHECK_MSG( node, false, wxT("wrong index in image list") );
 258
 259     wxBitmap *bm = (wxBitmap*)node->GetData();
 260     width = bm->GetWidth();
 261     height = bm->GetHeight();
 262
 263     return true;
 264 }
 265
 266 bool wxGenericImageList::Draw( int index, wxDC &dc, int x, int y,
 267                         int flags, bool WXUNUSED(solidBackground) )
 268 {
 269     wxList::compatibility_iterator node = m_images.Item( index );
 270
 271     wxCHECK_MSG( node, false, wxT("wrong index in image list") );
 272
 273     wxBitmap *bm = (wxBitmap*)node->GetData();
 274
 275     if (bm->IsKindOf(CLASSINFO(wxIcon)))
 276         dc.DrawIcon( * ((wxIcon*) bm), x, y);
 277     else
 278         dc.DrawBitmap( *bm, x, y, (flags & wxIMAGELIST_DRAW_TRANSPARENT) > 0 );
 279
 280     return true;
 281 }
 282
 283 #endif // __WXPALMOS__
 284
 285 #endif // wxUSE_IMAGLIST