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