src/gtk/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // Created:     01/02/97
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 1998 Robert Roebling, Julian Smart and Markus Holzem
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifdef __GNUG__
  12 #pragma implementation "bitmap.h"
  13 #endif
  14
  15 #include "wx/bitmap.h"
  16 #include "gdk/gdkprivate.h"
  17
  18 #ifdef USE_GDK_IMLIB
  19 #include "../gdk_imlib/gdk_imlib.h"
  20 #endif
  21
  22 //-----------------------------------------------------------------------------
  23 // wxMask
  24 //-----------------------------------------------------------------------------
  25
  26 IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
  27
  28 wxMask::wxMask(void)
  29 {
  30   m_bitmap = NULL;
  31 };
  32
  33 wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap), const wxColour& WXUNUSED(colour) )
  34 {
  35 };
  36
  37 wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap), int WXUNUSED(paletteIndex) )
  38 {
  39 };
  40
  41 wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap) )
  42 {
  43 };
  44
  45 wxMask::~wxMask(void)
  46 {
  47 #ifdef USE_GDK_IMLIB
  48   // do not delete the mask, gdk_imlib does it for you
  49 #else
  50   if (m_bitmap) gdk_bitmap_unref( m_bitmap );
  51 #endif
  52 };
  53
  54 GdkBitmap *wxMask::GetBitmap(void) const
  55 {
  56   return m_bitmap;
  57 };
  58
  59 //-----------------------------------------------------------------------------
  60 // wxBitmap
  61 //-----------------------------------------------------------------------------
  62
  63 // CMB 20/5/98: added m_bitmap for GdkBitmaps
  64 class wxBitmapRefData: public wxObjectRefData
  65 {
  66   public:
  67
  68     wxBitmapRefData(void);
  69     ~wxBitmapRefData(void);
  70
  71     GdkPixmap      *m_pixmap;
  72     GdkBitmap      *m_bitmap;
  73     wxMask         *m_mask;
  74     int             m_width;
  75     int             m_height;
  76     int             m_bpp;
  77 #ifdef USE_GDK_IMLIB
  78     GdkImlibImage  *m_image;
  79 #endif
  80     wxPalette      *m_palette;
  81 };
  82
  83 wxBitmapRefData::wxBitmapRefData(void)
  84 {
  85   m_pixmap = NULL;
  86   m_bitmap = NULL;
  87   m_mask = NULL;
  88   m_width = 0;
  89   m_height = 0;
  90   m_bpp = 0;
  91   m_palette = NULL;
  92 #ifdef USE_GDK_IMLIB
  93   m_image = NULL;
  94 #endif
  95 };
  96
  97 wxBitmapRefData::~wxBitmapRefData(void)
  98 {
  99 #ifdef USE_GDK_IMLIB
 100   if (m_pixmap) gdk_imlib_free_pixmap( m_pixmap );
 101   if (m_image) gdk_imlib_destroy_image( m_image );
 102 #else
 103   if (m_pixmap) gdk_pixmap_unref( m_pixmap );
 104 #endif
 105   if (m_bitmap) gdk_bitmap_unref( m_bitmap );
 106   if (m_mask) delete m_mask;
 107   if (m_palette) delete m_palette;
 108 };
 109
 110 //-----------------------------------------------------------------------------
 111
 112 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
 113
 114 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
 115
 116 wxBitmap::wxBitmap(void)
 117 {
 118   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 119 };
 120
 121 wxBitmap::wxBitmap( int width, int height, int depth )
 122 {
 123   m_refData = new wxBitmapRefData();
 124   M_BMPDATA->m_mask = NULL;
 125   M_BMPDATA->m_pixmap =
 126     gdk_pixmap_new( (GdkWindow*) &gdk_root_parent, width, height, depth );
 127   M_BMPDATA->m_width = width;
 128   M_BMPDATA->m_height = height;
 129   M_BMPDATA->m_bpp = depth;
 130
 131   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 132 };
 133
 134 wxBitmap::wxBitmap( char **bits )
 135 {
 136   m_refData = new wxBitmapRefData();
 137
 138 #ifndef USE_GDK_IMLIB
 139
 140   GdkBitmap *mask = NULL;
 141
 142   M_BMPDATA->m_pixmap =
 143     gdk_pixmap_create_from_xpm_d( (GdkWindow*) &gdk_root_parent, &mask, NULL, (gchar **) bits );
 144
 145   if (mask)
 146   {
 147     M_BMPDATA->m_mask = new wxMask();
 148     M_BMPDATA->m_mask->m_bitmap = mask;
 149   };
 150
 151   gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
 152
 153 #else
 154
 155   M_BMPDATA->m_image = gdk_imlib_create_image_from_xpm_data( bits );
 156   Render();
 157
 158 #endif
 159
 160   M_BMPDATA->m_bpp = 24; // ?
 161
 162   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 163 };
 164
 165 wxBitmap::wxBitmap( const wxBitmap& bmp )
 166 {
 167   Ref( bmp );
 168
 169   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 170 };
 171
 172 wxBitmap::wxBitmap( const wxBitmap* bmp )
 173 {
 174   if (bmp) Ref( *bmp );
 175
 176   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 177 };
 178
 179 wxBitmap::wxBitmap( const wxString &filename, int type )
 180 {
 181   LoadFile( filename, type );
 182 };
 183
 184 // CMB 15/5/98: add constructor for xbm bitmaps
 185 wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
 186 {
 187   m_refData = new wxBitmapRefData();
 188
 189   M_BMPDATA->m_mask = NULL;
 190   M_BMPDATA->m_bitmap =
 191     gdk_bitmap_create_from_data( (GdkWindow*) &gdk_root_parent, (gchar *) bits, width, height );
 192   M_BMPDATA->m_width = width;
 193   M_BMPDATA->m_height = height;
 194   M_BMPDATA->m_bpp = 1;
 195
 196   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 197 }
 198
 199 wxBitmap::~wxBitmap(void)
 200 {
 201   if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this);
 202 };
 203
 204 wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
 205 {
 206   if (*this == bmp) return (*this);
 207   Ref( bmp );
 208   return *this;
 209 };
 210
 211 bool wxBitmap::operator == ( const wxBitmap& bmp )
 212 {
 213   return m_refData == bmp.m_refData;
 214 };
 215
 216 bool wxBitmap::operator != ( const wxBitmap& bmp )
 217 {
 218   return m_refData != bmp.m_refData;
 219 };
 220
 221 bool wxBitmap::Ok(void) const
 222 {
 223   return m_refData != NULL;
 224 };
 225
 226 int wxBitmap::GetHeight(void) const
 227 {
 228   if (!Ok()) return 0;
 229   return M_BMPDATA->m_height;
 230 };
 231
 232 int wxBitmap::GetWidth(void) const
 233 {
 234   if (!Ok()) return 0;
 235   return M_BMPDATA->m_width;
 236 };
 237
 238 int wxBitmap::GetDepth(void) const
 239 {
 240   if (!Ok()) return 0;
 241   return M_BMPDATA->m_bpp;
 242 };
 243
 244 void wxBitmap::SetHeight( int height )
 245 {
 246   if (!Ok()) return;
 247   M_BMPDATA->m_height = height;
 248 };
 249
 250 void wxBitmap::SetWidth( int width )
 251 {
 252   if (!Ok()) return;
 253   M_BMPDATA->m_width = width;
 254 };
 255
 256 void wxBitmap::SetDepth( int depth )
 257 {
 258   if (!Ok()) return;
 259   M_BMPDATA->m_bpp = depth;
 260 };
 261
 262 wxMask *wxBitmap::GetMask(void) const
 263 {
 264   if (!Ok()) return NULL;
 265
 266   return M_BMPDATA->m_mask;
 267 };
 268
 269 void wxBitmap::SetMask( wxMask *mask )
 270 {
 271   if (!Ok()) return;
 272
 273   if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
 274   M_BMPDATA->m_mask = mask;
 275 };
 276
 277 void wxBitmap::Resize( int height, int width )
 278 {
 279   if (!Ok()) return;
 280
 281 #ifdef USE_GDK_IMLIB
 282
 283   if (M_BMPDATA->m_bitmap) return;  // not supported for bitmaps
 284
 285   if (!M_BMPDATA->m_image) RecreateImage();
 286
 287   if (M_BMPDATA->m_pixmap) gdk_imlib_free_pixmap( M_BMPDATA->m_pixmap );
 288   if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
 289
 290   GdkImlibImage* image = gdk_imlib_clone_scaled_image( M_BMPDATA->m_image, height, width );
 291   gdk_imlib_destroy_image( M_BMPDATA->m_image );
 292   M_BMPDATA->m_image = image;
 293   M_BMPDATA->m_height = height;
 294   M_BMPDATA->m_width = width;
 295
 296   Render();
 297
 298 #endif
 299 };
 300
 301 bool wxBitmap::SaveFile( const wxString &name, int WXUNUSED(type),
 302   wxPalette *WXUNUSED(palette) )
 303 {
 304 #ifdef USE_GDK_IMLIB
 305
 306   if (!Ok()) return FALSE;
 307
 308   if (!M_BMPDATA->m_image) RecreateImage();
 309
 310   return gdk_imlib_save_image( M_BMPDATA->m_image, WXSTRINGCAST name, NULL );
 311
 312 #endif
 313
 314   return FALSE;
 315 };
 316
 317 bool wxBitmap::LoadFile( const wxString &name, int WXUNUSED(type) )
 318 {
 319 #ifdef USE_GDK_IMLIB
 320
 321   UnRef();
 322   m_refData = new wxBitmapRefData();
 323
 324   M_BMPDATA->m_image = gdk_imlib_load_image( WXSTRINGCAST name );
 325
 326   if (!M_BMPDATA->m_image)
 327   {
 328     UnRef();
 329     return FALSE;
 330   };
 331
 332   Render();
 333
 334   gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
 335   M_BMPDATA->m_bpp = 24; // ?
 336
 337   return TRUE;
 338 #endif
 339
 340   return FALSE;
 341 };
 342
 343 wxPalette *wxBitmap::GetPalette(void) const
 344 {
 345   if (!Ok()) return NULL;
 346   return M_BMPDATA->m_palette;
 347 };
 348
 349 GdkPixmap *wxBitmap::GetPixmap(void) const
 350 {
 351   if (!Ok()) return NULL;
 352   return M_BMPDATA->m_pixmap;
 353 };
 354
 355 GdkBitmap *wxBitmap::GetBitmap(void) const
 356 {
 357   if (!Ok()) return NULL;
 358
 359   return M_BMPDATA->m_bitmap;
 360 };
 361
 362 void wxBitmap::DestroyImage(void)
 363 {
 364   if (!Ok()) return;
 365
 366   if (M_BMPDATA->m_image)
 367   {
 368     gdk_imlib_destroy_image( M_BMPDATA->m_image );
 369     M_BMPDATA->m_image = NULL;
 370   };
 371 };
 372
 373 void wxBitmap::RecreateImage(void)
 374 {
 375 };
 376
 377 void wxBitmap::Render(void)
 378 {
 379   if (!Ok()) return;
 380
 381 #ifdef USE_GDK_IMLIB
 382
 383   gdk_imlib_render( M_BMPDATA->m_image, M_BMPDATA->m_image->rgb_width, M_BMPDATA->m_image->rgb_height );
 384   M_BMPDATA->m_width = M_BMPDATA->m_image->rgb_width;
 385   M_BMPDATA->m_height = M_BMPDATA->m_image->rgb_height;
 386   M_BMPDATA->m_pixmap = gdk_imlib_move_image( M_BMPDATA->m_image );
 387   GdkBitmap *mask = gdk_imlib_move_mask( M_BMPDATA->m_image );
 388   if (mask)
 389   {
 390     M_BMPDATA->m_mask = new wxMask();
 391     M_BMPDATA->m_mask->m_bitmap = mask;
 392   };
 393
 394 #endif
 395 };
 396
 397