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 "wx/icon.h"
  17 #include "gdk/gdkprivate.h"
  18
  19 #ifdef USE_GDK_IMLIB
  20 #include "../gdk_imlib/gdk_imlib.h"
  21 #endif
  22
  23 //-----------------------------------------------------------------------------
  24 // wxMask
  25 //-----------------------------------------------------------------------------
  26
  27 IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
  28
  29 wxMask::wxMask(void)
  30 {
  31   m_bitmap = NULL;
  32 }
  33
  34 wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap), const wxColour& WXUNUSED(colour) )
  35 {
  36 }
  37
  38 wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap), int WXUNUSED(paletteIndex) )
  39 {
  40 }
  41
  42 wxMask::wxMask( const wxBitmap& WXUNUSED(bitmap) )
  43 {
  44 }
  45
  46 wxMask::~wxMask(void)
  47 {
  48 #ifdef USE_GDK_IMLIB
  49   // do not delete the mask, gdk_imlib does it for you
  50 #else
  51   if (m_bitmap) gdk_bitmap_unref( m_bitmap );
  52 #endif
  53 }
  54
  55 GdkBitmap *wxMask::GetBitmap(void) const
  56 {
  57   return m_bitmap;
  58 }
  59
  60 //-----------------------------------------------------------------------------
  61 // wxBitmap
  62 //-----------------------------------------------------------------------------
  63
  64 // CMB 20/5/98: added m_bitmap for GdkBitmaps
  65 class wxBitmapRefData: public wxObjectRefData
  66 {
  67   public:
  68
  69     wxBitmapRefData(void);
  70     ~wxBitmapRefData(void);
  71
  72     GdkPixmap      *m_pixmap;
  73     GdkBitmap      *m_bitmap;
  74     wxMask         *m_mask;
  75     int             m_width;
  76     int             m_height;
  77     int             m_bpp;
  78 #ifdef USE_GDK_IMLIB
  79     GdkImlibImage  *m_image;
  80 #endif
  81     wxPalette      *m_palette;
  82 };
  83
  84 wxBitmapRefData::wxBitmapRefData(void)
  85 {
  86   m_pixmap = NULL;
  87   m_bitmap = NULL;
  88   m_mask = NULL;
  89   m_width = 0;
  90   m_height = 0;
  91   m_bpp = 0;
  92   m_palette = NULL;
  93 #ifdef USE_GDK_IMLIB
  94   m_image = NULL;
  95 #endif
  96 }
  97
  98 wxBitmapRefData::~wxBitmapRefData(void)
  99 {
 100 #ifdef USE_GDK_IMLIB
 101   if (m_pixmap) gdk_imlib_free_pixmap( m_pixmap );
 102   if (m_image) gdk_imlib_destroy_image( m_image );
 103 #else
 104   if (m_pixmap) gdk_pixmap_unref( m_pixmap );
 105 #endif
 106   if (m_bitmap) gdk_bitmap_unref( m_bitmap );
 107   if (m_mask) delete m_mask;
 108   if (m_palette) delete m_palette;
 109 }
 110
 111 //-----------------------------------------------------------------------------
 112
 113 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
 114
 115 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
 116
 117 wxBitmap::wxBitmap(void)
 118 {
 119   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 120 }
 121
 122 wxBitmap::wxBitmap( int width, int height, int depth )
 123 {
 124   m_refData = new wxBitmapRefData();
 125   M_BMPDATA->m_mask = NULL;
 126   M_BMPDATA->m_pixmap =
 127     gdk_pixmap_new( (GdkWindow*) &gdk_root_parent, width, height, depth );
 128   M_BMPDATA->m_width = width;
 129   M_BMPDATA->m_height = height;
 130   M_BMPDATA->m_bpp = depth;
 131
 132   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 133 }
 134
 135 wxBitmap::wxBitmap( char **bits )
 136 {
 137   m_refData = new wxBitmapRefData();
 138
 139 #ifndef USE_GDK_IMLIB
 140
 141   GdkBitmap *mask = NULL;
 142
 143   M_BMPDATA->m_pixmap =
 144     gdk_pixmap_create_from_xpm_d( (GdkWindow*) &gdk_root_parent, &mask, NULL, (gchar **) bits );
 145
 146   if (mask)
 147   {
 148     M_BMPDATA->m_mask = new wxMask();
 149     M_BMPDATA->m_mask->m_bitmap = mask;
 150   }
 151
 152   gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
 153
 154 #else
 155
 156   M_BMPDATA->m_image = gdk_imlib_create_image_from_xpm_data( bits );
 157   Render();
 158
 159 #endif
 160
 161   M_BMPDATA->m_bpp = 24; // ?
 162
 163   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 164 }
 165
 166 wxBitmap::wxBitmap( const wxBitmap& bmp )
 167 {
 168   Ref( bmp );
 169
 170   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 171 }
 172
 173 wxBitmap::wxBitmap( const wxBitmap* bmp )
 174 {
 175   if (bmp) Ref( *bmp );
 176
 177   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 178 }
 179
 180 wxBitmap::wxBitmap( const wxString &filename, int type )
 181 {
 182   LoadFile( filename, type );
 183
 184   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 185 }
 186
 187 // CMB 15/5/98: add constructor for xbm bitmaps
 188 wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
 189 {
 190   m_refData = new wxBitmapRefData();
 191
 192   M_BMPDATA->m_mask = NULL;
 193   M_BMPDATA->m_bitmap =
 194     gdk_bitmap_create_from_data( (GdkWindow*) &gdk_root_parent, (gchar *) bits, width, height );
 195   M_BMPDATA->m_width = width;
 196   M_BMPDATA->m_height = height;
 197   M_BMPDATA->m_bpp = 1;
 198
 199   if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 200 }
 201
 202 wxBitmap::~wxBitmap(void)
 203 {
 204   if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this);
 205 }
 206
 207 wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
 208 {
 209   if (*this == bmp) return (*this);
 210   Ref( bmp );
 211   return *this;
 212 }
 213
 214 bool wxBitmap::operator == ( const wxBitmap& bmp )
 215 {
 216   return m_refData == bmp.m_refData;
 217 }
 218
 219 bool wxBitmap::operator != ( const wxBitmap& bmp )
 220 {
 221   return m_refData != bmp.m_refData;
 222 }
 223
 224 bool wxBitmap::Ok(void) const
 225 {
 226   return m_refData != NULL;
 227 }
 228
 229 int wxBitmap::GetHeight(void) const
 230 {
 231   if (!Ok()) return 0;
 232   return M_BMPDATA->m_height;
 233 }
 234
 235 int wxBitmap::GetWidth(void) const
 236 {
 237   if (!Ok()) return 0;
 238   return M_BMPDATA->m_width;
 239 }
 240
 241 int wxBitmap::GetDepth(void) const
 242 {
 243   if (!Ok()) return 0;
 244   return M_BMPDATA->m_bpp;
 245 }
 246
 247 void wxBitmap::SetHeight( int height )
 248 {
 249   if (!Ok()) return;
 250   M_BMPDATA->m_height = height;
 251 }
 252
 253 void wxBitmap::SetWidth( int width )
 254 {
 255   if (!Ok()) return;
 256   M_BMPDATA->m_width = width;
 257 }
 258
 259 void wxBitmap::SetDepth( int depth )
 260 {
 261   if (!Ok()) return;
 262   M_BMPDATA->m_bpp = depth;
 263 }
 264
 265 wxMask *wxBitmap::GetMask(void) const
 266 {
 267   if (!Ok()) return NULL;
 268
 269   return M_BMPDATA->m_mask;
 270 }
 271
 272 void wxBitmap::SetMask( wxMask *mask )
 273 {
 274   if (!Ok()) return;
 275
 276   if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
 277   M_BMPDATA->m_mask = mask;
 278 }
 279
 280 void wxBitmap::Resize( int height, int width )
 281 {
 282   if (!Ok()) return;
 283
 284 #ifdef USE_GDK_IMLIB
 285
 286   if (M_BMPDATA->m_bitmap) return;  // not supported for bitmaps
 287
 288   if (!M_BMPDATA->m_image) RecreateImage();
 289
 290   if (M_BMPDATA->m_pixmap) gdk_imlib_free_pixmap( M_BMPDATA->m_pixmap );
 291   if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
 292
 293   GdkImlibImage* image = gdk_imlib_clone_scaled_image( M_BMPDATA->m_image, height, width );
 294   gdk_imlib_destroy_image( M_BMPDATA->m_image );
 295   M_BMPDATA->m_image = image;
 296   M_BMPDATA->m_height = height;
 297   M_BMPDATA->m_width = width;
 298
 299   Render();
 300
 301 #endif
 302 }
 303
 304 bool wxBitmap::SaveFile( const wxString &name, int WXUNUSED(type),
 305   wxPalette *WXUNUSED(palette) )
 306 {
 307 #ifdef USE_GDK_IMLIB
 308
 309   if (!Ok()) return FALSE;
 310
 311   if (!M_BMPDATA->m_image) RecreateImage();
 312
 313   return gdk_imlib_save_image( M_BMPDATA->m_image, WXSTRINGCAST name, NULL );
 314
 315 #endif
 316
 317   return FALSE;
 318 }
 319
 320 bool wxBitmap::LoadFile( const wxString &name, int WXUNUSED(type) )
 321 {
 322 #ifdef USE_GDK_IMLIB
 323
 324   UnRef();
 325   m_refData = new wxBitmapRefData();
 326
 327   M_BMPDATA->m_image = gdk_imlib_load_image( WXSTRINGCAST name );
 328
 329   if (!M_BMPDATA->m_image)
 330   {
 331     UnRef();
 332     return FALSE;
 333   }
 334
 335   Render();
 336
 337   gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
 338   M_BMPDATA->m_bpp = 24; // ?
 339
 340   return TRUE;
 341 #endif
 342
 343   return FALSE;
 344 }
 345
 346 wxPalette *wxBitmap::GetPalette(void) const
 347 {
 348   if (!Ok()) return NULL;
 349   return M_BMPDATA->m_palette;
 350 }
 351
 352 GdkPixmap *wxBitmap::GetPixmap(void) const
 353 {
 354   if (!Ok()) return NULL;
 355   return M_BMPDATA->m_pixmap;
 356 }
 357
 358 GdkBitmap *wxBitmap::GetBitmap(void) const
 359 {
 360   if (!Ok()) return NULL;
 361
 362   return M_BMPDATA->m_bitmap;
 363 }
 364
 365 void wxBitmap::DestroyImage(void)
 366 {
 367   if (!Ok()) return;
 368
 369   if (M_BMPDATA->m_image)
 370   {
 371     gdk_imlib_destroy_image( M_BMPDATA->m_image );
 372     M_BMPDATA->m_image = NULL;
 373   }
 374 }
 375
 376 void wxBitmap::RecreateImage(void)
 377 {
 378 }
 379
 380 void wxBitmap::Render(void)
 381 {
 382   if (!Ok()) return;
 383
 384 #ifdef USE_GDK_IMLIB
 385
 386   gdk_imlib_render( M_BMPDATA->m_image, M_BMPDATA->m_image->rgb_width, M_BMPDATA->m_image->rgb_height );
 387   M_BMPDATA->m_width = M_BMPDATA->m_image->rgb_width;
 388   M_BMPDATA->m_height = M_BMPDATA->m_image->rgb_height;
 389   M_BMPDATA->m_pixmap = gdk_imlib_move_image( M_BMPDATA->m_image );
 390   GdkBitmap *mask = gdk_imlib_move_mask( M_BMPDATA->m_image );
 391   if (mask)
 392   {
 393     M_BMPDATA->m_mask = new wxMask();
 394     M_BMPDATA->m_mask->m_bitmap = mask;
 395   }
 396
 397 #endif
 398 }
 399
 400