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