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Side by Side Diff: ui/gfx/canvas.h

Issue 2680943002: ui: Clean up naming of paint-related identifiers (Closed)
Patch Set: Created 3 years, 10 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef UI_GFX_CANVAS_H_ 5 #ifndef UI_GFX_CANVAS_H_
6 #define UI_GFX_CANVAS_H_ 6 #define UI_GFX_CANVAS_H_
7 7
8 #include <stdint.h> 8 #include <stdint.h>
9 9
10 #include <memory> 10 #include <memory>
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251 // DEPRECATED in favor of the RectF version below. 251 // DEPRECATED in favor of the RectF version below.
252 // TODO(funkysidd): Remove this (http://crbug.com/553726) 252 // TODO(funkysidd): Remove this (http://crbug.com/553726)
253 void DrawRect(const Rect& rect, SkColor color, SkBlendMode mode); 253 void DrawRect(const Rect& rect, SkColor color, SkBlendMode mode);
254 254
255 // Draws a single pixel rect in the specified region with the specified 255 // Draws a single pixel rect in the specified region with the specified
256 // color and transfer mode. 256 // color and transfer mode.
257 // 257 //
258 // NOTE: if you need a single pixel line, use DrawLine. 258 // NOTE: if you need a single pixel line, use DrawLine.
259 void DrawRect(const RectF& rect, SkColor color, SkBlendMode mode); 259 void DrawRect(const RectF& rect, SkColor color, SkBlendMode mode);
260 260
261 // Draws the given rectangle with the given |paint| parameters. 261 // Draws the given rectangle with the given |flags| parameters.
262 // DEPRECATED in favor of the RectF version below. 262 // DEPRECATED in favor of the RectF version below.
263 // TODO(funkysidd): Remove this (http://crbug.com/553726) 263 // TODO(funkysidd): Remove this (http://crbug.com/553726)
264 void DrawRect(const Rect& rect, const cc::PaintFlags& paint); 264 void DrawRect(const Rect& rect, const cc::PaintFlags& flags);
265 265
266 // Draws the given rectangle with the given |paint| parameters. 266 // Draws the given rectangle with the given |flags| parameters.
267 void DrawRect(const RectF& rect, const cc::PaintFlags& paint); 267 void DrawRect(const RectF& rect, const cc::PaintFlags& flags);
268 268
269 // Draw the given point with the given |paint| parameters. 269 // Draw the given point with the given |flags| parameters.
270 // DEPRECATED in favor of the RectF version below. 270 // DEPRECATED in favor of the RectF version below.
271 // TODO(funkysidd): Remove this (http://crbug.com/553726) 271 // TODO(funkysidd): Remove this (http://crbug.com/553726)
272 void DrawPoint(const Point& p, const cc::PaintFlags& paint); 272 void DrawPoint(const Point& p, const cc::PaintFlags& flags);
273 273
274 // Draw the given point with the given |paint| parameters. 274 // Draw the given point with the given |flags| parameters.
275 void DrawPoint(const PointF& p, const cc::PaintFlags& paint); 275 void DrawPoint(const PointF& p, const cc::PaintFlags& flags);
276 276
277 // Draws a single pixel line with the specified color. 277 // Draws a single pixel line with the specified color.
278 // DEPRECATED in favor of the RectF version below. 278 // DEPRECATED in favor of the RectF version below.
279 // TODO(funkysidd): Remove this (http://crbug.com/553726) 279 // TODO(funkysidd): Remove this (http://crbug.com/553726)
280 void DrawLine(const Point& p1, const Point& p2, SkColor color); 280 void DrawLine(const Point& p1, const Point& p2, SkColor color);
281 281
282 // Draws a single pixel line with the specified color. 282 // Draws a single pixel line with the specified color.
283 void DrawLine(const PointF& p1, const PointF& p2, SkColor color); 283 void DrawLine(const PointF& p1, const PointF& p2, SkColor color);
284 284
285 // Draws a line with the given |paint| parameters. 285 // Draws a line with the given |flags| parameters.
286 // DEPRECATED in favor of the RectF version below. 286 // DEPRECATED in favor of the RectF version below.
287 // TODO(funkysidd): Remove this (http://crbug.com/553726) 287 // TODO(funkysidd): Remove this (http://crbug.com/553726)
288 void DrawLine(const Point& p1, const Point& p2, const cc::PaintFlags& paint); 288 void DrawLine(const Point& p1, const Point& p2, const cc::PaintFlags& flags);
289 289
290 // Draws a line with the given |paint| parameters. 290 // Draws a line with the given |flags| parameters.
291 void DrawLine(const PointF& p1, 291 void DrawLine(const PointF& p1,
292 const PointF& p2, 292 const PointF& p2,
293 const cc::PaintFlags& paint); 293 const cc::PaintFlags& flags);
294 294
295 // Draws a circle with the given |paint| parameters. 295 // Draws a circle with the given |flags| parameters.
296 // DEPRECATED in favor of the RectF version below. 296 // DEPRECATED in favor of the RectF version below.
297 // TODO(funkysidd): Remove this (http://crbug.com/553726) 297 // TODO(funkysidd): Remove this (http://crbug.com/553726)
298 void DrawCircle(const Point& center_point, 298 void DrawCircle(const Point& center_point,
299 int radius, 299 int radius,
300 const cc::PaintFlags& paint); 300 const cc::PaintFlags& flags);
301 301
302 // Draws a circle with the given |paint| parameters. 302 // Draws a circle with the given |flags| parameters.
303 void DrawCircle(const PointF& center_point, 303 void DrawCircle(const PointF& center_point,
304 float radius, 304 float radius,
305 const cc::PaintFlags& paint); 305 const cc::PaintFlags& flags);
306 306
307 // Draws the given rectangle with rounded corners of |radius| using the 307 // Draws the given rectangle with rounded corners of |radius| using the
308 // given |paint| parameters. DEPRECATED in favor of the RectF version below. 308 // given |flags| parameters. DEPRECATED in favor of the RectF version below.
309 // TODO(mgiuca): Remove this (http://crbug.com/553726). 309 // TODO(mgiuca): Remove this (http://crbug.com/553726).
310 void DrawRoundRect(const Rect& rect, int radius, const cc::PaintFlags& paint); 310 void DrawRoundRect(const Rect& rect, int radius, const cc::PaintFlags& flags);
311 311
312 // Draws the given rectangle with rounded corners of |radius| using the 312 // Draws the given rectangle with rounded corners of |radius| using the
313 // given |paint| parameters. 313 // given |flags| parameters.
314 void DrawRoundRect(const RectF& rect, 314 void DrawRoundRect(const RectF& rect,
315 float radius, 315 float radius,
316 const cc::PaintFlags& paint); 316 const cc::PaintFlags& flags);
317 317
318 // Draws the given path using the given |paint| parameters. 318 // Draws the given path using the given |flags| parameters.
319 void DrawPath(const SkPath& path, const cc::PaintFlags& paint); 319 void DrawPath(const SkPath& path, const cc::PaintFlags& flags);
320 320
321 // Draws an image with the origin at the specified location. The upper left 321 // Draws an image with the origin at the specified location. The upper left
322 // corner of the bitmap is rendered at the specified location. 322 // corner of the bitmap is rendered at the specified location.
323 // Parameters are specified relative to current canvas scale not in pixels. 323 // Parameters are specified relative to current canvas scale not in pixels.
324 // Thus, x is 2 pixels if canvas scale = 2 & |x| = 1. 324 // Thus, x is 2 pixels if canvas scale = 2 & |x| = 1.
325 void DrawImageInt(const ImageSkia&, int x, int y); 325 void DrawImageInt(const ImageSkia&, int x, int y);
326 326
327 // Helper for DrawImageInt(..., paint) that constructs a temporary paint and 327 // Helper for DrawImageInt(..., flags) that constructs a temporary flags and
328 // calls paint.setAlpha(alpha). 328 // calls flags.setAlpha(alpha).
329 void DrawImageInt(const ImageSkia&, int x, int y, uint8_t alpha); 329 void DrawImageInt(const ImageSkia&, int x, int y, uint8_t alpha);
330 330
331 // Draws an image with the origin at the specified location, using the 331 // Draws an image with the origin at the specified location, using the
332 // specified paint. The upper left corner of the bitmap is rendered at the 332 // specified flags. The upper left corner of the bitmap is rendered at the
333 // specified location. 333 // specified location.
334 // Parameters are specified relative to current canvas scale not in pixels. 334 // Parameters are specified relative to current canvas scale not in pixels.
335 // Thus, |x| is 2 pixels if canvas scale = 2 & |x| = 1. 335 // Thus, |x| is 2 pixels if canvas scale = 2 & |x| = 1.
336 void DrawImageInt(const ImageSkia& image, 336 void DrawImageInt(const ImageSkia& image,
337 int x, 337 int x,
338 int y, 338 int y,
339 const cc::PaintFlags& paint); 339 const cc::PaintFlags& flags);
340 340
341 // Draws a portion of an image in the specified location. The src parameters 341 // Draws a portion of an image in the specified location. The src parameters
342 // correspond to the region of the bitmap to draw in the region defined 342 // correspond to the region of the bitmap to draw in the region defined
343 // by the dest coordinates. 343 // by the dest coordinates.
344 // 344 //
345 // If the width or height of the source differs from that of the destination, 345 // If the width or height of the source differs from that of the destination,
346 // the image will be scaled. When scaling down, a mipmap will be generated. 346 // the image will be scaled. When scaling down, a mipmap will be generated.
347 // Set |filter| to use filtering for images, otherwise the nearest-neighbor 347 // Set |filter| to use filtering for images, otherwise the nearest-neighbor
348 // algorithm is used for resampling. 348 // algorithm is used for resampling.
349 // 349 //
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363 void DrawImageInt(const ImageSkia& image, 363 void DrawImageInt(const ImageSkia& image,
364 int src_x, 364 int src_x,
365 int src_y, 365 int src_y,
366 int src_w, 366 int src_w,
367 int src_h, 367 int src_h,
368 int dest_x, 368 int dest_x,
369 int dest_y, 369 int dest_y,
370 int dest_w, 370 int dest_w,
371 int dest_h, 371 int dest_h,
372 bool filter, 372 bool filter,
373 const cc::PaintFlags& paint); 373 const cc::PaintFlags& flags);
374 374
375 // Same as the DrawImageInt functions above. Difference being this does not 375 // Same as the DrawImageInt functions above. Difference being this does not
376 // do any scaling, i.e. it does not scale the output by the device scale 376 // do any scaling, i.e. it does not scale the output by the device scale
377 // factor (the internal image_scale_). It takes an ImageSkiaRep instead of 377 // factor (the internal image_scale_). It takes an ImageSkiaRep instead of
378 // an ImageSkia as the caller chooses the exact scale/pixel representation to 378 // an ImageSkia as the caller chooses the exact scale/pixel representation to
379 // use, which will not be scaled while drawing it into the canvas. 379 // use, which will not be scaled while drawing it into the canvas.
380 void DrawImageIntInPixel(const ImageSkiaRep& image_rep, 380 void DrawImageIntInPixel(const ImageSkiaRep& image_rep,
381 int dest_x, 381 int dest_x,
382 int dest_y, 382 int dest_y,
383 int dest_w, 383 int dest_w,
384 int dest_h, 384 int dest_h,
385 bool filter, 385 bool filter,
386 const cc::PaintFlags& paint); 386 const cc::PaintFlags& flags);
387 387
388 // Draws an |image| with the top left corner at |x| and |y|, clipped to 388 // Draws an |image| with the top left corner at |x| and |y|, clipped to
389 // |path|. 389 // |path|.
390 // Parameters are specified relative to current canvas scale not in pixels. 390 // Parameters are specified relative to current canvas scale not in pixels.
391 // Thus, x is 2 pixels if canvas scale = 2 & |x| = 1. 391 // Thus, x is 2 pixels if canvas scale = 2 & |x| = 1.
392 void DrawImageInPath(const ImageSkia& image, 392 void DrawImageInPath(const ImageSkia& image,
393 int x, 393 int x,
394 int y, 394 int y,
395 const SkPath& path, 395 const SkPath& path,
396 const cc::PaintFlags& paint); 396 const cc::PaintFlags& flags);
397 397
398 // Draws text with the specified color, fonts and location. The text is 398 // Draws text with the specified color, fonts and location. The text is
399 // aligned to the left, vertically centered, clipped to the region. If the 399 // aligned to the left, vertically centered, clipped to the region. If the
400 // text is too big, it is truncated and '...' is added to the end. 400 // text is too big, it is truncated and '...' is added to the end.
401 void DrawStringRect(const base::string16& text, 401 void DrawStringRect(const base::string16& text,
402 const FontList& font_list, 402 const FontList& font_list,
403 SkColor color, 403 SkColor color,
404 const Rect& display_rect); 404 const Rect& display_rect);
405 405
406 // Draws text with the specified color, fonts and location. The last argument 406 // Draws text with the specified color, fonts and location. The last argument
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442 void TileImageInt(const ImageSkia& image, 442 void TileImageInt(const ImageSkia& image,
443 int src_x, 443 int src_x,
444 int src_y, 444 int src_y,
445 float tile_scale_x, 445 float tile_scale_x,
446 float tile_scale_y, 446 float tile_scale_y,
447 int dest_x, 447 int dest_x,
448 int dest_y, 448 int dest_y,
449 int w, 449 int w,
450 int h); 450 int h);
451 451
452 // Helper for TileImageInt(). Initializes |paint| for tiling |image| with the 452 // Helper for TileImageInt(). Initializes |flags| for tiling |image| with the
453 // given parameters. Returns false if the provided image does not have a 453 // given parameters. Returns false if the provided image does not have a
454 // representation for the current scale. 454 // representation for the current scale.
455 bool InitPaintFlagsForTiling(const ImageSkia& image, 455 bool InitPaintFlagsForTiling(const ImageSkia& image,
456 int src_x, 456 int src_x,
457 int src_y, 457 int src_y,
458 float tile_scale_x, 458 float tile_scale_x,
459 float tile_scale_y, 459 float tile_scale_y,
460 int dest_x, 460 int dest_x,
461 int dest_y, 461 int dest_y,
462 cc::PaintFlags* paint); 462 cc::PaintFlags* flags);
463 463
464 // Apply transformation on the canvas. 464 // Apply transformation on the canvas.
465 void Transform(const Transform& transform); 465 void Transform(const Transform& transform);
466 466
467 // Draws the given string with a fade gradient at the end. 467 // Draws the given string with a fade gradient at the end.
468 void DrawFadedString(const base::string16& text, 468 void DrawFadedString(const base::string16& text,
469 const FontList& font_list, 469 const FontList& font_list,
470 SkColor color, 470 SkColor color,
471 const Rect& display_rect, 471 const Rect& display_rect,
472 int flags); 472 int flags);
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485 void DrawImageIntHelper(const ImageSkiaRep& image_rep, 485 void DrawImageIntHelper(const ImageSkiaRep& image_rep,
486 int src_x, 486 int src_x,
487 int src_y, 487 int src_y,
488 int src_w, 488 int src_w,
489 int src_h, 489 int src_h,
490 int dest_x, 490 int dest_x,
491 int dest_y, 491 int dest_y,
492 int dest_w, 492 int dest_w,
493 int dest_h, 493 int dest_h,
494 bool filter, 494 bool filter,
495 const cc::PaintFlags& paint, 495 const cc::PaintFlags& flags,
496 bool remove_image_scale); 496 bool remove_image_scale);
497 497
498 // The device scale factor at which drawing on this canvas occurs. 498 // The device scale factor at which drawing on this canvas occurs.
499 // An additional scale can be applied via Canvas::Scale(). However, 499 // An additional scale can be applied via Canvas::Scale(). However,
500 // Canvas::Scale() does not affect |image_scale_|. 500 // Canvas::Scale() does not affect |image_scale_|.
501 float image_scale_; 501 float image_scale_;
502 502
503 // canvas_ is our active canvas object. Sometimes we are also the owner, 503 // canvas_ is our active canvas object. Sometimes we are also the owner,
504 // in which case surface_ will be set. Other times we are just 504 // in which case surface_ will be set. Other times we are just
505 // borrowing someone else's canvas, in which case canvas_ will point there 505 // borrowing someone else's canvas, in which case canvas_ will point there
506 // but surface_ will be null. 506 // but surface_ will be null.
507 sk_sp<cc::PaintSurface> surface_; 507 sk_sp<cc::PaintSurface> surface_;
508 cc::PaintCanvas* canvas_; 508 cc::PaintCanvas* canvas_;
509 509
510 DISALLOW_COPY_AND_ASSIGN(Canvas); 510 DISALLOW_COPY_AND_ASSIGN(Canvas);
511 }; 511 };
512 512
513 } // namespace gfx 513 } // namespace gfx
514 514
515 #endif // UI_GFX_CANVAS_H_ 515 #endif // UI_GFX_CANVAS_H_
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