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& 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()
  47 {
  48     if (m_bitmap) gdk_bitmap_unref( m_bitmap );
  49 }
  50
  51 GdkBitmap *wxMask::GetBitmap(void) const
  52 {
  53     return m_bitmap;
  54 }
  55
  56 //-----------------------------------------------------------------------------
  57 // wxBitmap
  58 //-----------------------------------------------------------------------------
  59
  60 class wxBitmapRefData: public wxObjectRefData
  61 {
  62 public:
  63   wxBitmapRefData(void);
  64   ~wxBitmapRefData(void);
  65
  66   GdkPixmap      *m_pixmap;
  67   GdkBitmap      *m_bitmap;
  68   wxMask         *m_mask;
  69   int             m_width;
  70   int             m_height;
  71   int             m_bpp;
  72   wxPalette      *m_palette;
  73 };
  74
  75 wxBitmapRefData::wxBitmapRefData()
  76 {
  77     m_pixmap = (GdkPixmap *) NULL;
  78     m_bitmap = (GdkBitmap *) NULL;
  79     m_mask = (wxMask *) NULL;
  80     m_width = 0;
  81     m_height = 0;
  82     m_bpp = 0;
  83     m_palette = (wxPalette *) NULL;
  84 }
  85
  86 wxBitmapRefData::~wxBitmapRefData()
  87 {
  88     if (m_pixmap) gdk_pixmap_unref( m_pixmap );
  89     if (m_bitmap) gdk_bitmap_unref( m_bitmap );
  90     if (m_mask) delete m_mask;
  91     if (m_palette) delete m_palette;
  92 }
  93
  94 //-----------------------------------------------------------------------------
  95
  96 #define M_BMPDATA ((wxBitmapRefData *)m_refData)
  97
  98 IMPLEMENT_DYNAMIC_CLASS(wxBitmap,wxGDIObject)
  99
 100 wxBitmap::wxBitmap()
 101 {
 102     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 103 }
 104
 105 wxBitmap::wxBitmap( int width, int height, int depth )
 106 {
 107     wxCHECK_RET( (width > 0) && (height > 0), _T("invalid bitmap size") )
 108     wxCHECK_RET( (depth > 0) || (depth == -1), _T("invalid bitmap depth") )
 109
 110     m_refData = new wxBitmapRefData();
 111
 112     GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
 113
 114     M_BMPDATA->m_mask = (wxMask *) NULL;
 115     M_BMPDATA->m_pixmap = gdk_pixmap_new( parent, width, height, depth );
 116     M_BMPDATA->m_width = width;
 117     M_BMPDATA->m_height = height;
 118     M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;
 119
 120     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 121 }
 122
 123 wxBitmap::wxBitmap( const char **bits )
 124 {
 125     wxCHECK_RET( bits != NULL, _T("invalid bitmap data") )
 126
 127     m_refData = new wxBitmapRefData();
 128
 129     GdkBitmap *mask = (GdkBitmap*) NULL;
 130     GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
 131
 132     M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( parent, &mask, NULL, (gchar **) bits );
 133
 134     if (mask)
 135     {
 136         M_BMPDATA->m_mask = new wxMask();
 137         M_BMPDATA->m_mask->m_bitmap = mask;
 138     }
 139
 140     gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
 141
 142     M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;  // ?
 143     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 144 }
 145
 146 wxBitmap::wxBitmap( char **bits )
 147 {
 148     wxCHECK_RET( bits != NULL, _T("invalid bitmap data") )
 149
 150     m_refData = new wxBitmapRefData();
 151
 152     GdkBitmap *mask = (GdkBitmap*) NULL;
 153     GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
 154
 155     M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm_d( parent, &mask, NULL, (gchar **) bits );
 156
 157     wxCHECK_RET( M_BMPDATA->m_pixmap, _T("couldn't create pixmap") );
 158
 159     if (mask)
 160     {
 161         M_BMPDATA->m_mask = new wxMask();
 162         M_BMPDATA->m_mask->m_bitmap = mask;
 163     }
 164
 165     gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
 166
 167     M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;  // ?
 168     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 169 }
 170
 171 wxBitmap::wxBitmap( const wxBitmap& bmp )
 172 {
 173     Ref( bmp );
 174
 175     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 176 }
 177
 178 wxBitmap::wxBitmap( const wxString &filename, int type )
 179 {
 180     LoadFile( filename, type );
 181
 182     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 183 }
 184
 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 = (wxMask *) 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     wxCHECK_RET( M_BMPDATA->m_bitmap, _T("couldn't create bitmap") );
 197
 198     if (wxTheBitmapList) wxTheBitmapList->AddBitmap(this);
 199 }
 200
 201 wxBitmap::~wxBitmap()
 202 {
 203     if (wxTheBitmapList) wxTheBitmapList->DeleteObject(this);
 204 }
 205
 206 wxBitmap& wxBitmap::operator = ( const wxBitmap& bmp )
 207 {
 208     if (*this == bmp) return (*this);
 209     Ref( bmp );
 210     return *this;
 211 }
 212
 213 bool wxBitmap::operator == ( const wxBitmap& bmp )
 214 {
 215     return m_refData == bmp.m_refData;
 216 }
 217
 218 bool wxBitmap::operator != ( const wxBitmap& bmp )
 219 {
 220     return m_refData != bmp.m_refData;
 221 }
 222
 223 bool wxBitmap::Ok(void) const
 224 {
 225     return (m_refData != NULL);
 226 }
 227
 228 int wxBitmap::GetHeight(void) const
 229 {
 230     wxCHECK_MSG( Ok(), -1, _T("invalid bitmap") );
 231
 232     return M_BMPDATA->m_height;
 233 }
 234
 235 int wxBitmap::GetWidth(void) const
 236 {
 237     wxCHECK_MSG( Ok(), -1, _T("invalid bitmap") );
 238
 239     return M_BMPDATA->m_width;
 240 }
 241
 242 int wxBitmap::GetDepth(void) const
 243 {
 244     wxCHECK_MSG( Ok(), -1, _T("invalid bitmap") );
 245
 246     return M_BMPDATA->m_bpp;
 247 }
 248
 249 wxMask *wxBitmap::GetMask(void) const
 250 {
 251     wxCHECK_MSG( Ok(), (wxMask *) NULL, _T("invalid bitmap") );
 252
 253     return M_BMPDATA->m_mask;
 254 }
 255
 256 void wxBitmap::SetMask( wxMask *mask )
 257 {
 258     wxCHECK_RET( Ok(), _T("invalid bitmap") );
 259
 260     if (M_BMPDATA->m_mask) delete M_BMPDATA->m_mask;
 261
 262     M_BMPDATA->m_mask = mask;
 263 }
 264
 265 bool wxBitmap::SaveFile( const wxString &name, int type, wxPalette *WXUNUSED(palette) )
 266 {
 267     wxCHECK_MSG( Ok(), FALSE, _T("invalid bitmap") );
 268
 269     if (type == wxBITMAP_TYPE_PNG)
 270     {
 271         wxImage image( *this );
 272         if (image.Ok()) return image.SaveFile( name, type );
 273     }
 274
 275     return FALSE;
 276 }
 277
 278 bool wxBitmap::LoadFile( const wxString &name, int type )
 279 {
 280     UnRef();
 281
 282     if (!wxFileExists(name)) return FALSE;
 283
 284     if (type == wxBITMAP_TYPE_XPM)
 285     {
 286         m_refData = new wxBitmapRefData();
 287
 288         GdkBitmap *mask = (GdkBitmap*) NULL;
 289         GdkWindow *parent = (GdkWindow*) &gdk_root_parent;
 290
 291         M_BMPDATA->m_pixmap = gdk_pixmap_create_from_xpm( parent, &mask, NULL, name.fn_str() );
 292
 293         if (mask)
 294         {
 295            M_BMPDATA->m_mask = new wxMask();
 296            M_BMPDATA->m_mask->m_bitmap = mask;
 297         }
 298
 299         gdk_window_get_size( M_BMPDATA->m_pixmap, &(M_BMPDATA->m_width), &(M_BMPDATA->m_height) );
 300         M_BMPDATA->m_bpp = gdk_window_get_visual( parent )->depth;
 301     }
 302     else if (type == wxBITMAP_TYPE_PNG)
 303     {
 304         wxImage image;
 305         image.LoadFile( name, type );
 306         if (image.Ok()) *this = image.ConvertToBitmap();
 307     }
 308     else if (type == wxBITMAP_TYPE_BMP)
 309     {
 310         wxImage image;
 311         image.LoadFile( name, type );
 312         if (image.Ok()) *this = image.ConvertToBitmap();
 313     }
 314     else
 315         return FALSE;
 316
 317     return TRUE;
 318 }
 319
 320 wxPalette *wxBitmap::GetPalette(void) const
 321 {
 322     if (!Ok()) return (wxPalette *) NULL;
 323
 324     return M_BMPDATA->m_palette;
 325 }
 326
 327 void wxBitmap::SetHeight( int height )
 328 {
 329     if (!m_refData) m_refData = new wxBitmapRefData();
 330
 331     M_BMPDATA->m_height = height;
 332 }
 333
 334 void wxBitmap::SetWidth( int width )
 335 {
 336     if (!m_refData) m_refData = new wxBitmapRefData();
 337
 338     M_BMPDATA->m_width = width;
 339 }
 340
 341 void wxBitmap::SetDepth( int depth )
 342 {
 343     if (!m_refData) m_refData = new wxBitmapRefData();
 344
 345     M_BMPDATA->m_bpp = depth;
 346 }
 347
 348 void wxBitmap::SetPixmap( GdkPixmap *pixmap )
 349 {
 350     if (!m_refData) m_refData = new wxBitmapRefData();
 351
 352     M_BMPDATA->m_pixmap = pixmap;
 353 }
 354
 355 GdkPixmap *wxBitmap::GetPixmap(void) const
 356 {
 357     wxCHECK_MSG( Ok(), (GdkPixmap *) NULL, _T("invalid bitmap") );
 358
 359     return M_BMPDATA->m_pixmap;
 360 }
 361
 362 GdkBitmap *wxBitmap::GetBitmap(void) const
 363 {
 364     wxCHECK_MSG( Ok(), (GdkBitmap *) NULL, _T("invalid bitmap") );
 365
 366     return M_BMPDATA->m_bitmap;
 367 }