| 1 | //////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/palmos/bitmap.cpp |
| 3 | // Purpose: wxBitmap |
| 4 | // Author: William Osborne - minimal working wxPalmOS port |
| 5 | // Modified by: |
| 6 | // Created: 10/08/04 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) William Osborne |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ============================================================================ |
| 13 | // declarations |
| 14 | // ============================================================================ |
| 15 | |
| 16 | // ---------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // ---------------------------------------------------------------------------- |
| 19 | |
| 20 | // For compilers that support precompilation, includes "wx.h". |
| 21 | #include "wx/wxprec.h" |
| 22 | |
| 23 | #ifdef __BORLANDC__ |
| 24 | #pragma hdrstop |
| 25 | #endif |
| 26 | |
| 27 | #include "wx/bitmap.h" |
| 28 | |
| 29 | #ifndef WX_PRECOMP |
| 30 | #include <stdio.h> |
| 31 | |
| 32 | #include "wx/list.h" |
| 33 | #include "wx/utils.h" |
| 34 | #include "wx/app.h" |
| 35 | #include "wx/palette.h" |
| 36 | #include "wx/dcmemory.h" |
| 37 | #include "wx/icon.h" |
| 38 | #include "wx/log.h" |
| 39 | #include "wx/image.h" |
| 40 | #endif |
| 41 | |
| 42 | #if wxUSE_WXDIB |
| 43 | #include "wx/palmos/dib.h" |
| 44 | #endif |
| 45 | |
| 46 | #include "wx/xpmdecod.h" |
| 47 | |
| 48 | // missing from mingw32 header |
| 49 | #ifndef CLR_INVALID |
| 50 | #define CLR_INVALID ((COLORREF)-1) |
| 51 | #endif // no CLR_INVALID |
| 52 | |
| 53 | // ---------------------------------------------------------------------------- |
| 54 | // Bitmap data |
| 55 | // ---------------------------------------------------------------------------- |
| 56 | |
| 57 | class WXDLLEXPORT wxBitmapRefData : public wxGDIImageRefData |
| 58 | { |
| 59 | public: |
| 60 | wxBitmapRefData(); |
| 61 | virtual ~wxBitmapRefData() { Free(); } |
| 62 | |
| 63 | virtual void Free(); |
| 64 | |
| 65 | // set the mask object to use as the mask, we take ownership of it |
| 66 | void SetMask(wxMask *mask) |
| 67 | { |
| 68 | delete m_bitmapMask; |
| 69 | m_bitmapMask = mask; |
| 70 | } |
| 71 | |
| 72 | // return the mask |
| 73 | wxMask *GetMask() const { return m_bitmapMask; } |
| 74 | |
| 75 | public: |
| 76 | #if wxUSE_PALETTE |
| 77 | wxPalette m_bitmapPalette; |
| 78 | #endif // wxUSE_PALETTE |
| 79 | |
| 80 | #if wxUSE_WXDIB |
| 81 | wxDIB *m_dib; |
| 82 | #endif |
| 83 | |
| 84 | bool m_hasAlpha; |
| 85 | |
| 86 | bool m_isDIB; |
| 87 | |
| 88 | private: |
| 89 | wxMask *m_bitmapMask; |
| 90 | |
| 91 | wxDECLARE_NO_COPY_CLASS(wxBitmapRefData); |
| 92 | }; |
| 93 | |
| 94 | // ---------------------------------------------------------------------------- |
| 95 | // macros |
| 96 | // ---------------------------------------------------------------------------- |
| 97 | |
| 98 | IMPLEMENT_DYNAMIC_CLASS(wxBitmap, wxGDIObject) |
| 99 | IMPLEMENT_DYNAMIC_CLASS(wxMask, wxObject) |
| 100 | |
| 101 | IMPLEMENT_DYNAMIC_CLASS(wxBitmapHandler, wxObject) |
| 102 | |
| 103 | // ============================================================================ |
| 104 | // implementation |
| 105 | // ============================================================================ |
| 106 | |
| 107 | // ---------------------------------------------------------------------------- |
| 108 | // helper functions |
| 109 | // ---------------------------------------------------------------------------- |
| 110 | |
| 111 | #if !wxUSE_WXDIB |
| 112 | #define NEVER_USE_DIB |
| 113 | #else |
| 114 | static inline bool wxShouldCreateDIB(int w, int h, int d, WXHDC hdc) |
| 115 | { |
| 116 | // here is the logic: |
| 117 | // |
| 118 | // (a) if hdc is specified, the caller explicitly wants DDB |
| 119 | // (b) otherwise, create a DIB if depth >= 24 (we don't support 16bpp |
| 120 | // or less DIBs anyhow) |
| 121 | // (c) finally, create DIBs under Win9x even if the depth hasn't been |
| 122 | // explicitly specified but the current display depth is 24 or |
| 123 | // more and the image is "big", i.e. > 16Mb which is the |
| 124 | // theoretical limit for DDBs under Win9x |
| 125 | // |
| 126 | // consequences (all of which seem to make sense): |
| 127 | // |
| 128 | // (i) by default, DDBs are created (depth == -1 usually) |
| 129 | // (ii) DIBs can be created by explicitly specifying the depth |
| 130 | // (iii) using a DC always forces creating a DDB |
| 131 | return !hdc && |
| 132 | (d >= 24 || |
| 133 | (d == -1 && |
| 134 | wxDIB::GetLineSize(w, wxDisplayDepth())*h > 16*1024*1024)); |
| 135 | } |
| 136 | |
| 137 | #define SOMETIMES_USE_DIB |
| 138 | #endif // different DIB usage scenarious |
| 139 | |
| 140 | // ---------------------------------------------------------------------------- |
| 141 | // wxBitmapRefData |
| 142 | // ---------------------------------------------------------------------------- |
| 143 | |
| 144 | wxBitmapRefData::wxBitmapRefData() |
| 145 | { |
| 146 | m_bitmapMask = NULL; |
| 147 | |
| 148 | m_hBitmap = (WXHBITMAP) NULL; |
| 149 | #if wxUSE_WXDIB |
| 150 | m_dib = NULL; |
| 151 | #endif |
| 152 | |
| 153 | m_isDIB = |
| 154 | m_hasAlpha = false; |
| 155 | } |
| 156 | |
| 157 | void wxBitmapRefData::Free() |
| 158 | { |
| 159 | } |
| 160 | |
| 161 | // ---------------------------------------------------------------------------- |
| 162 | // wxBitmap creation |
| 163 | // ---------------------------------------------------------------------------- |
| 164 | |
| 165 | // this function should be called from all wxBitmap ctors |
| 166 | void wxBitmap::Init() |
| 167 | { |
| 168 | } |
| 169 | |
| 170 | wxGDIImageRefData *wxBitmap::CreateData() const |
| 171 | { |
| 172 | return NULL; |
| 173 | } |
| 174 | |
| 175 | bool wxBitmap::CopyFromCursor(const wxCursor& cursor) |
| 176 | { |
| 177 | return false; |
| 178 | } |
| 179 | |
| 180 | bool wxBitmap::CopyFromIcon(const wxIcon& icon) |
| 181 | { |
| 182 | return false; |
| 183 | } |
| 184 | |
| 185 | #ifndef NEVER_USE_DIB |
| 186 | |
| 187 | bool wxBitmap::CopyFromDIB(const wxDIB& dib) |
| 188 | { |
| 189 | return false: |
| 190 | } |
| 191 | |
| 192 | #endif // NEVER_USE_DIB |
| 193 | |
| 194 | wxBitmap::wxBitmap(const char bits[], int width, int height, int depth) |
| 195 | { |
| 196 | Init(); |
| 197 | } |
| 198 | |
| 199 | wxBitmap::wxBitmap(int w, int h, const wxDC& dc) |
| 200 | { |
| 201 | } |
| 202 | |
| 203 | wxBitmap::wxBitmap(const void* data, long type, int width, int height, int depth) |
| 204 | { |
| 205 | } |
| 206 | |
| 207 | wxBitmap::wxBitmap(const wxString& filename, wxBitmapType type) |
| 208 | { |
| 209 | } |
| 210 | |
| 211 | bool wxBitmap::Create(int width, int height, int depth) |
| 212 | { |
| 213 | return false; |
| 214 | } |
| 215 | |
| 216 | bool wxBitmap::Create(int width, int height, const wxDC& dc) |
| 217 | { |
| 218 | return false; |
| 219 | } |
| 220 | |
| 221 | bool wxBitmap::DoCreate(int w, int h, int d, WXHDC hdc) |
| 222 | { |
| 223 | return false; |
| 224 | } |
| 225 | |
| 226 | #if wxUSE_IMAGE |
| 227 | |
| 228 | // ---------------------------------------------------------------------------- |
| 229 | // wxImage to/from conversions |
| 230 | // ---------------------------------------------------------------------------- |
| 231 | |
| 232 | #if wxUSE_WXDIB |
| 233 | |
| 234 | bool wxBitmap::CreateFromImage(const wxImage& image, int depth) |
| 235 | { |
| 236 | return false; |
| 237 | } |
| 238 | |
| 239 | bool wxBitmap::CreateFromImage(const wxImage& image, const wxDC& dc) |
| 240 | { |
| 241 | return false; |
| 242 | } |
| 243 | |
| 244 | bool wxBitmap::CreateFromImage(const wxImage& image, int depth, WXHDC hdc) |
| 245 | { |
| 246 | return false; |
| 247 | } |
| 248 | |
| 249 | wxImage wxBitmap::ConvertToImage() const |
| 250 | { |
| 251 | wxImage image; |
| 252 | return image; |
| 253 | } |
| 254 | |
| 255 | #endif // wxUSE_WXDIB |
| 256 | |
| 257 | #endif // wxUSE_IMAGE |
| 258 | |
| 259 | // ---------------------------------------------------------------------------- |
| 260 | // loading and saving bitmaps |
| 261 | // ---------------------------------------------------------------------------- |
| 262 | |
| 263 | bool wxBitmap::LoadFile(const wxString& filename, long type) |
| 264 | { |
| 265 | return false; |
| 266 | } |
| 267 | |
| 268 | bool wxBitmap::Create(const void* data, long type, int width, int height, int depth) |
| 269 | { |
| 270 | return false; |
| 271 | } |
| 272 | |
| 273 | bool wxBitmap::SaveFile(const wxString& filename, |
| 274 | int type, |
| 275 | const wxPalette *palette) |
| 276 | { |
| 277 | return false; |
| 278 | } |
| 279 | |
| 280 | // ---------------------------------------------------------------------------- |
| 281 | // sub bitmap extraction |
| 282 | // ---------------------------------------------------------------------------- |
| 283 | |
| 284 | wxBitmap wxBitmap::GetSubBitmap( const wxRect& rect) const |
| 285 | { |
| 286 | wxBitmap ret( 0, 0 ); |
| 287 | return ret; |
| 288 | } |
| 289 | |
| 290 | // ---------------------------------------------------------------------------- |
| 291 | // wxBitmap accessors |
| 292 | // ---------------------------------------------------------------------------- |
| 293 | |
| 294 | #if wxUSE_PALETTE |
| 295 | wxPalette* wxBitmap::GetPalette() const |
| 296 | { |
| 297 | return NULL; |
| 298 | } |
| 299 | #endif |
| 300 | |
| 301 | wxMask *wxBitmap::GetMask() const |
| 302 | { |
| 303 | return NULL; |
| 304 | } |
| 305 | |
| 306 | bool wxBitmap::HasAlpha() const |
| 307 | { |
| 308 | return false; |
| 309 | } |
| 310 | |
| 311 | // ---------------------------------------------------------------------------- |
| 312 | // wxBitmap setters |
| 313 | // ---------------------------------------------------------------------------- |
| 314 | |
| 315 | #if wxUSE_PALETTE |
| 316 | |
| 317 | void wxBitmap::SetPalette(const wxPalette& palette) |
| 318 | { |
| 319 | } |
| 320 | |
| 321 | #endif // wxUSE_PALETTE |
| 322 | |
| 323 | void wxBitmap::SetMask(wxMask *mask) |
| 324 | { |
| 325 | } |
| 326 | |
| 327 | // ---------------------------------------------------------------------------- |
| 328 | // raw bitmap access support |
| 329 | // ---------------------------------------------------------------------------- |
| 330 | |
| 331 | // ---------------------------------------------------------------------------- |
| 332 | // wxMask |
| 333 | // ---------------------------------------------------------------------------- |
| 334 | |
| 335 | wxMask::wxMask() |
| 336 | { |
| 337 | m_maskBitmap = 0; |
| 338 | } |
| 339 | |
| 340 | // Construct a mask from a bitmap and a colour indicating |
| 341 | // the transparent area |
| 342 | wxMask::wxMask(const wxBitmap& bitmap, const wxColour& colour) |
| 343 | { |
| 344 | } |
| 345 | |
| 346 | // Construct a mask from a bitmap and a palette index indicating |
| 347 | // the transparent area |
| 348 | wxMask::wxMask(const wxBitmap& bitmap, int paletteIndex) |
| 349 | { |
| 350 | } |
| 351 | |
| 352 | // Construct a mask from a mono bitmap (copies the bitmap). |
| 353 | wxMask::wxMask(const wxBitmap& bitmap) |
| 354 | { |
| 355 | } |
| 356 | |
| 357 | wxMask::~wxMask() |
| 358 | { |
| 359 | } |
| 360 | |
| 361 | // Create a mask from a mono bitmap (copies the bitmap). |
| 362 | bool wxMask::Create(const wxBitmap& bitmap) |
| 363 | { |
| 364 | return false; |
| 365 | } |
| 366 | |
| 367 | // Create a mask from a bitmap and a palette index indicating |
| 368 | // the transparent area |
| 369 | bool wxMask::Create(const wxBitmap& bitmap, int paletteIndex) |
| 370 | { |
| 371 | return false; |
| 372 | } |
| 373 | |
| 374 | // Create a mask from a bitmap and a colour indicating |
| 375 | // the transparent area |
| 376 | bool wxMask::Create(const wxBitmap& bitmap, const wxColour& colour) |
| 377 | { |
| 378 | return false; |
| 379 | } |
| 380 | |
| 381 | // ---------------------------------------------------------------------------- |
| 382 | // wxBitmapHandler |
| 383 | // ---------------------------------------------------------------------------- |
| 384 | |
| 385 | bool wxBitmapHandler::Create(wxGDIImage *image, |
| 386 | const void* data, |
| 387 | long flags, |
| 388 | int width, int height, int depth) |
| 389 | { |
| 390 | return false; |
| 391 | } |
| 392 | |
| 393 | bool wxBitmapHandler::Load(wxGDIImage *image, |
| 394 | const wxString& name, |
| 395 | long flags, |
| 396 | int width, int height) |
| 397 | { |
| 398 | return false; |
| 399 | } |
| 400 | |
| 401 | bool wxBitmapHandler::Save(wxGDIImage *image, |
| 402 | const wxString& name, |
| 403 | int type) |
| 404 | { |
| 405 | return false; |
| 406 | } |
| 407 | |
| 408 | bool wxBitmapHandler::Create(wxBitmap *WXUNUSED(bitmap), |
| 409 | const void* WXUNUSED(data), |
| 410 | long WXUNUSED(type), |
| 411 | int WXUNUSED(width), |
| 412 | int WXUNUSED(height), |
| 413 | int WXUNUSED(depth)) |
| 414 | { |
| 415 | return false; |
| 416 | } |
| 417 | |
| 418 | bool wxBitmapHandler::LoadFile(wxBitmap *WXUNUSED(bitmap), |
| 419 | const wxString& WXUNUSED(name), |
| 420 | long WXUNUSED(type), |
| 421 | int WXUNUSED(desiredWidth), |
| 422 | int WXUNUSED(desiredHeight)) |
| 423 | { |
| 424 | return false; |
| 425 | } |
| 426 | |
| 427 | bool wxBitmapHandler::SaveFile(wxBitmap *WXUNUSED(bitmap), |
| 428 | const wxString& WXUNUSED(name), |
| 429 | int WXUNUSED(type), |
| 430 | const wxPalette *WXUNUSED(palette)) |
| 431 | { |
| 432 | return false; |
| 433 | } |