src/gtk/bitmap.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bitmap.cpp
   3 // Purpose:
   4 // Author:      Robert Roebling
   5 // RCS-ID:      $Id$
   6 // Copyright:   (c) 1998 Robert Roebling
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifdef __GNUG__
  11 #pragma implementation "bitmap.h"
  12 #endif
  13
  14 #include "wx/bitmap.h"
  15 #include "wx/icon.h"
  16 #include "wx/filefn.h"
  17 #include "wx/image.h"
  18
  19 #include <gdk/gdk.h>
  20 #include <gdk/gdkprivate.h>
  21 #include <gdk/gdkx.h>
  22
  23 //-----------------------------------------------------------------------------
  24 // wxMask
  25 //-----------------------------------------------------------------------------
  26
  27 IMPLEMENT_DYNAMIC_CLASS(wxMask,wxObject)
  28
  29 wxMask::wxMask()
  30 {
  31     m_bitmap = (GdkBitmap *) NULL;
  32 }
  33
  34 wxMask::wxMask( const wxBitmap& bitmap, const wxColour& colour )
  35 {
  36     m_bitmap = (GdkBitmap *) NULL;
  37     Create( bitmap, colour );
  38 }
  39
  40 wxMask::wxMask( const wxBitmap& bitmap, int paletteIndex )
  41 {
  42     m_bitmap = (GdkBitmap *) NULL;
  43     Create( bitmap, paletteIndex );
  44 }
  45
  46 wxMask::wxMask( const wxBitmap& bitmap )
  47 {
  48     m_bitmap = (GdkBitmap *) NULL;
  49     Create( bitmap );
  50 }
  51
  52 wxMask::~wxMask()
  53 {
  54     if (m_bitmap)
  55         gdk_bitmap_unref( m_bitmap );
  56 }
  57
  58 bool wxMask::Create( const wxBitmap& WXUNUSED(bitmap),
  59                      const wxColour& WXUNUSED(colour) )
  60 {
  61     if (m_bitmap)
  62     {
  63         gdk_bitmap_unref( m_bitmap );
  64         m_bitmap = (GdkBitmap*) NULL;
  65     }
  66
  67     wxFAIL_MSG( wxT("TODO") );
  68
  69     return FALSE;
  70 }
  71
  72 bool wxMask::Create( const wxBitmap& WXUNUSED(bitmap),
  73                      int WXUNUSED(paletteIndex) )
  74 {
  75     if (m_bitmap)
  76     {
  77         gdk_bitmap_unref( m_bitmap );
  78         m_bitmap = (GdkBitmap*) NULL;
  79     }
  80
  81     wxFAIL_MSG( wxT("not implemented") );
  82
  83     return FALSE;
  84 }
  85
  86 bool wxMask::Create( const wxBitmap& bitmap )
  87 {
  88     if (m_bitmap)
  89     {
  90         gdk_bitmap_unref( m_bitmap );
  91         m_bitmap = (GdkBitmap*) NULL;
  92     }
  93
  94     if (!bitmap.Ok()) return FALSE;
  95
  96     wxCHECK_MSG( bitmap.GetBitmap(), FALSE, wxT("Cannot create mask from colour bitmap") );
  97
  98     m_bitmap = gdk_pixmap_new( (GdkWindow*) &gdk_root_parent, bitmap.GetWidth(), bitmap.GetHeight(), 1 );
  99
 100     if (!m_bitmap) return FALSE;
 101
 102     GdkGC *gc = gdk_gc_new( m_bitmap );
 103
 104     gdk_draw_bitmap( m_bitmap, gc, bitmap.GetBitmap(), 0, 0, 0, 0, bitmap.GetWidth(), bitmap.GetHeight() );
 105
 106     gdk_gc_unref( gc );
 107
 108     return TRUE;
 109 }
 110
 111 GdkBitmap *wxMask::GetBitmap() const
 112 {
 113     return m_bitmap;
 114 }
 115
 116 //-----------------------------------------------------------------------------
 117 // wxBitmap
 118 //-----------------------------------------------------------------------------
 119
 120 class wxBitmapRefData: public wxObjectRefData
 121 {
 122 public:
 123   wxBitmapRefData();
 124   ~wxBitmapRefData();
 125
 126   GdkPixmap      *m_pixmap;
 127   GdkBitmap      *m_bitmap;
 128   wxMask         *m_mask;
 129   int             m_width;
 130   int             m_height;
 131   int             m_bpp;
 132   wxPalette      *m_palette;
 133 };
 134
 135 wxBitmapRefData::wxBitmapRefData()
 136 {
 137     m_pixmap = (GdkPixmap *) NULL;
 138     m_bitmap = (GdkBitmap *) NULL;
 139     m_mask = (wxMask *) NULL;
 140     m_width = 0;
 141     m_height = 0;
 142     m_bpp = 0;
 143     m_palette = (wxPalette *) NULL;
 144 }
 145
 146 wxBitmapRefData::~wxBitmapRefData()
 147 {
 148     if (m_pixmap) gdk_pixmap_unref( m_pixmap );
 149     if (m_bitmap) gdk_bitmap_unref( m_bitmap );
 150     if (m_mask) delete m_mask;
 151     if (m_palette) delete m_palette;
 152 }
 153
 154 //-----------------------------------------------------------------------------
 155
 156 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
 157
 158 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
 159
 160 wxBitmap::wxBitmap()
 161 {
 162     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 163 }
 164
 165 wxBitmap::wxBitmap( int width, int height, int depth )
 166 {
 167     wxCHECK_RET( (width > 0) && (height > 0), wxT("invalid bitmap size") )
 168
 169     GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
 170     if (depth == -1) depth = gdk_window_get_visual( parent )->depth;
 171
 172     wxCHECK_RET( (depth ==  gdk_window_get_visual( parent )->depth) ||
 173                  (depth == 1), wxT("invalid bitmap depth") )
 174
 175     m_refData = new wxBitmapRefData();
 176     M_BMPDATA->m_mask = (wxMask *) NULL;
 177     M_BMPDATA->m_width = width;
 178     M_BMPDATA->m_height = height;
 179     if (depth == 1)
 180     {
 181         M_BMPDATA->m_bitmap = gdk_pixmap_new( parent, width, height, 1 );
 182         M_BMPDATA->m_bpp = 1;
 183     }
 184     else
 185     {
 186         M_BMPDATA->m_pixmap = gdk_pixmap_new( parent, width, height, depth );
 187         M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;
 188     }
 189
 190     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 191 }
 192
 193 wxBitmap::wxBitmap( const char **bits )
 194 {
 195     wxCHECK_RET( bits != NULL, wxT("invalid bitmap data") )
 196
 197     m_refData = new wxBitmapRefData();
 198
 199     GdkBitmap *mask = (GdkBitmap*) NULL;
 200     GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
 201
 202     M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( parent, &mask, NULL, (gchar **) bits );
 203
 204     if (mask)
 205     {
 206         M_BMPDATA->m_mask = new wxMask();
 207         M_BMPDATA->m_mask->m_bitmap = mask;
 208     }
 209
 210     gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
 211
 212     M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;  // ?
 213     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 214 }
 215
 216 wxBitmap::wxBitmap( char **bits )
 217 {
 218     wxCHECK_RET( bits != NULL, wxT("invalid bitmap data") )
 219
 220     m_refData = new wxBitmapRefData();
 221
 222     GdkBitmap *mask = (GdkBitmap*) NULL;
 223     GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
 224
 225     M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( parent, &mask, NULL, (gchar **) bits );
 226
 227     wxCHECK_RET( M_BMPDATA->m_pixmap, wxT("couldn't create pixmap") );
 228
 229     if (mask)
 230     {
 231         M_BMPDATA->m_mask = new wxMask();
 232         M_BMPDATA->m_mask->m_bitmap = mask;
 233     }
 234
 235     gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
 236
 237     M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;  // ?
 238     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 239 }
 240
 241 wxBitmap::wxBitmap( const wxBitmap& bmp )
 242 {
 243     Ref( bmp );
 244
 245     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 246 }
 247
 248 wxBitmap::wxBitmap( const wxString &filename, int type )
 249 {
 250     LoadFile( filename, type );
 251
 252     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 253 }
 254
 255 wxBitmap::wxBitmap( const char bits[], int width, int height, int WXUNUSED(depth))
 256 {
 257     m_refData = new wxBitmapRefData();
 258
 259     M_BMPDATA->m_mask = (wxMask *) NULL;
 260     M_BMPDATA->m_bitmap =
 261       gdk_bitmap_create_from_data( (GdkWindow*) &gdk_root_parent, (gchar *) bits, width, height );
 262     M_BMPDATA->m_width = width;
 263     M_BMPDATA->m_height = height;
 264     M_BMPDATA->m_bpp = 1;
 265
 266     wxCHECK_RET( M_BMPDATA->m_bitmap, wxT("couldn't create bitmap") );
 267
 268     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 269 }
 270
 271 wxBitmap::~wxBitmap()
 272 {
 273     if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this);
 274 }
 275
 276 wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
 277 {
 278     if (*this == bmp) return (*this);
 279     Ref( bmp );
 280     return *this;
 281 }
 282
 283 bool wxBitmap::operator == ( const wxBitmap& bmp )
 284 {
 285     return m_refData == bmp.m_refData;
 286 }
 287
 288 bool wxBitmap::operator != ( const wxBitmap& bmp )
 289 {
 290     return m_refData != bmp.m_refData;
 291 }
 292
 293 bool wxBitmap::Ok() const
 294 {
 295     return (m_refData != NULL);
 296 }
 297
 298 int wxBitmap::GetHeight() const
 299 {
 300     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 301
 302     return M_BMPDATA->m_height;
 303 }
 304
 305 int wxBitmap::GetWidth() const
 306 {
 307     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 308
 309     return M_BMPDATA->m_width;
 310 }
 311
 312 int wxBitmap::GetDepth() const
 313 {
 314     wxCHECK_MSG( Ok(), -1, wxT("invalid bitmap") );
 315
 316     return M_BMPDATA->m_bpp;
 317 }
 318
 319 wxMask *wxBitmap::GetMask() const
 320 {
 321     wxCHECK_MSG( Ok(), (wxMask *) NULL, wxT("invalid bitmap") );
 322
 323     return M_BMPDATA->m_mask;
 324 }
 325
 326 void wxBitmap::SetMask( wxMask *mask )
 327 {
 328     wxCHECK_RET( Ok(), wxT("invalid bitmap") );
 329
 330     if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
 331
 332     M_BMPDATA->m_mask = mask;
 333 }
 334
 335 bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
 336 {
 337     wxCHECK_MSG( Ok(), FALSE, wxT("invalid bitmap") );
 338
 339     // Try to save the bitmap via wxImage handlers:
 340     {
 341         wxImage image( *this );
 342         if (image.Ok()) return image.SaveFile( name, type );
 343     }
 344
 345     return FALSE;
 346 }
 347
 348 bool wxBitmap::LoadFile( const wxString &name, int type )
 349 {
 350     UnRef();
 351
 352     if (!wxFileExists(name)) return FALSE;
 353
 354     if (type == wxBITMAP_TYPE_XPM)
 355     {
 356         m_refData = new wxBitmapRefData();
 357
 358         GdkBitmap *mask = (GdkBitmap*) NULL;
 359         GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
 360
 361         M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( parent, &mask, NULL, name.fn_str() );
 362
 363         if (mask)
 364         {
 365            M_BMPDATA->m_mask = new wxMask();
 366            M_BMPDATA->m_mask->m_bitmap = mask;
 367         }
 368
 369         gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
 370         M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;
 371     }
 372     else // try if wxImage can load it
 373     {
 374         wxImage image;
 375         if (!image.LoadFile( name, type )) return FALSE;
 376         if (image.Ok()) *this = image.ConvertToBitmap();
 377         else return FALSE;
 378     }
 379
 380     return TRUE;
 381 }
 382
 383 wxPalette *wxBitmap::GetPalette() const
 384 {
 385     if (!Ok()) return (wxPalette *) NULL;
 386
 387     return M_BMPDATA->m_palette;
 388 }
 389
 390 void wxBitmap::SetHeight( int height )
 391 {
 392     if (!m_refData) m_refData = new wxBitmapRefData();
 393
 394     M_BMPDATA->m_height = height;
 395 }
 396
 397 void wxBitmap::SetWidth( int width )
 398 {
 399     if (!m_refData) m_refData = new wxBitmapRefData();
 400
 401     M_BMPDATA->m_width = width;
 402 }
 403
 404 void wxBitmap::SetDepth( int depth )
 405 {
 406     if (!m_refData) m_refData = new wxBitmapRefData();
 407
 408     M_BMPDATA->m_bpp = depth;
 409 }
 410
 411 void wxBitmap::SetPixmap( GdkPixmap *pixmap )
 412 {
 413     if (!m_refData) m_refData = new wxBitmapRefData();
 414
 415     M_BMPDATA->m_pixmap = pixmap;
 416 }
 417
 418 GdkPixmap *wxBitmap::GetPixmap() const
 419 {
 420     wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, wxT("invalid bitmap") );
 421
 422     return M_BMPDATA->m_pixmap;
 423 }
 424
 425 GdkBitmap *wxBitmap::GetBitmap() const
 426 {
 427     wxCHECK_MSG( Ok(), (GdkBitmap *) NULL, wxT("invalid bitmap") );
 428
 429     return M_BMPDATA->m_bitmap;
 430 }