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Side by Side Diff: ui/compositor/layer.h

Issue 10915140: Add the partial screen magnifier to Chrome OS. (Closed) Base URL: http://git.chromium.org/chromium/src.git@master
Patch Set: Code review fixes Created 8 years, 3 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_COMPOSITOR_LAYER_H_ 5 #ifndef UI_COMPOSITOR_LAYER_H_
6 #define UI_COMPOSITOR_LAYER_H_ 6 #define UI_COMPOSITOR_LAYER_H_
7 7
8 #include <string> 8 #include <string>
9 #include <vector> 9 #include <vector>
10 10
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161 // Change the grayscale of all pixels from this layer by this amount. 161 // Change the grayscale of all pixels from this layer by this amount.
162 // This effect will get "combined" with the inverted, saturate 162 // This effect will get "combined" with the inverted, saturate
163 // and brightness setting. 163 // and brightness setting.
164 float layer_grayscale() const { return layer_grayscale_; } 164 float layer_grayscale() const { return layer_grayscale_; }
165 void SetLayerGrayscale(float grayscale); 165 void SetLayerGrayscale(float grayscale);
166 166
167 // Return the target grayscale if animator is running, or the current 167 // Return the target grayscale if animator is running, or the current
168 // grayscale otherwise. 168 // grayscale otherwise.
169 float GetTargetGrayscale() const; 169 float GetTargetGrayscale() const;
170 170
171 // Zoom the background by this amount.
172 void SetBackgroundZoom(float x_offset, float y_offset, float zoom, int inset);
173
171 // Invert the layer. 174 // Invert the layer.
172 bool layer_inverted() const { return layer_inverted_; } 175 bool layer_inverted() const { return layer_inverted_; }
173 void SetLayerInverted(bool inverted); 176 void SetLayerInverted(bool inverted);
174 177
175 // Return the target opacity if animator is running, or the current opacity 178 // Return the target opacity if animator is running, or the current opacity
176 // otherwise. 179 // otherwise.
177 float GetTargetOpacity() const; 180 float GetTargetOpacity() const;
178 181
179 // Set a layer mask for a layer. 182 // Set a layer mask for a layer.
180 // Note the provided layer mask can neither have a layer mask itself nor can 183 // Note the provided layer mask can neither have a layer mask itself nor can
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318 virtual float GetGrayscaleForAnimation() const OVERRIDE; 321 virtual float GetGrayscaleForAnimation() const OVERRIDE;
319 322
320 void CreateWebLayer(); 323 void CreateWebLayer();
321 void RecomputeTransform(); 324 void RecomputeTransform();
322 void RecomputeDrawsContentAndUVRect(); 325 void RecomputeDrawsContentAndUVRect();
323 void RecomputeDebugBorderColor(); 326 void RecomputeDebugBorderColor();
324 327
325 // Set all filters which got applied to the layer. 328 // Set all filters which got applied to the layer.
326 void SetLayerFilters(); 329 void SetLayerFilters();
327 330
331 // Set all filters which got applied to the layer background.
332 void SetLayerBackgroundFilters();
333
328 const LayerType type_; 334 const LayerType type_;
329 335
330 Compositor* compositor_; 336 Compositor* compositor_;
331 337
332 scoped_refptr<ui::Texture> texture_; 338 scoped_refptr<ui::Texture> texture_;
333 339
334 Layer* parent_; 340 Layer* parent_;
335 341
336 // This layer's children, in bottom-to-top stacking order. 342 // This layer's children, in bottom-to-top stacking order.
337 std::vector<Layer*> children_; 343 std::vector<Layer*> children_;
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364 float layer_grayscale_; 370 float layer_grayscale_;
365 bool layer_inverted_; 371 bool layer_inverted_;
366 372
367 // The associated mask layer with this layer. 373 // The associated mask layer with this layer.
368 Layer* layer_mask_; 374 Layer* layer_mask_;
369 // The back link from the mask layer to it's associated masked layer. 375 // The back link from the mask layer to it's associated masked layer.
370 // We keep this reference for the case that if the mask layer gets deleted 376 // We keep this reference for the case that if the mask layer gets deleted
371 // while attached to the main layer before the main layer is deleted. 377 // while attached to the main layer before the main layer is deleted.
372 Layer* layer_mask_back_link_; 378 Layer* layer_mask_back_link_;
373 379
380 float zoom_x_offset_;
381 float zoom_y_offset_;
382 float zoom_;
383 int zoom_inset_;
oshima 2012/09/13 16:35:31 document
Zachary Kuznia 2012/10/09 09:02:36 Done.
384
374 std::string name_; 385 std::string name_;
375 386
376 LayerDelegate* delegate_; 387 LayerDelegate* delegate_;
377 388
378 scoped_ptr<LayerAnimator> animator_; 389 scoped_ptr<LayerAnimator> animator_;
379 390
380 // Ownership of the layer is held through one of the strongly typed layer 391 // Ownership of the layer is held through one of the strongly typed layer
381 // pointers, depending on which sort of layer this is. 392 // pointers, depending on which sort of layer this is.
382 scoped_ptr<WebKit::WebContentLayer> content_layer_; 393 scoped_ptr<WebKit::WebContentLayer> content_layer_;
383 scoped_ptr<WebKit::WebExternalTextureLayer> texture_layer_; 394 scoped_ptr<WebKit::WebExternalTextureLayer> texture_layer_;
384 scoped_ptr<WebKit::WebSolidColorLayer> solid_color_layer_; 395 scoped_ptr<WebKit::WebSolidColorLayer> solid_color_layer_;
385 WebKit::WebLayer* web_layer_; 396 WebKit::WebLayer* web_layer_;
386 bool web_layer_is_accelerated_; 397 bool web_layer_is_accelerated_;
387 bool show_debug_borders_; 398 bool show_debug_borders_;
388 399
389 // If true, the layer scales the canvas and the texture with the device scale 400 // If true, the layer scales the canvas and the texture with the device scale
390 // factor as appropriate. When true, the texture size is in DIP. 401 // factor as appropriate. When true, the texture size is in DIP.
391 bool scale_content_; 402 bool scale_content_;
392 403
393 // A cached copy of |Compositor::device_scale_factor()|. 404 // A cached copy of |Compositor::device_scale_factor()|.
394 float device_scale_factor_; 405 float device_scale_factor_;
395 406
396 DISALLOW_COPY_AND_ASSIGN(Layer); 407 DISALLOW_COPY_AND_ASSIGN(Layer);
397 }; 408 };
398 409
399 } // namespace ui 410 } // namespace ui
400 411
401 #endif // UI_COMPOSITOR_LAYER_H_ 412 #endif // UI_COMPOSITOR_LAYER_H_
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