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1 // Copyright 2016 The Chromium Authors. All rights reserved. | |
2 // Use of this source code is governed by a BSD-style license that can be | |
3 // found in the LICENSE file. | |
4 | |
5 #ifndef REMOTING_CLIENT_OPENGL_GL_CURSOR_FEEDBACK_H_ | |
6 #define REMOTING_CLIENT_OPENGL_GL_CURSOR_FEEDBACK_H_ | |
7 | |
8 #include <stdint.h> | |
9 | |
10 #include <memory> | |
11 | |
12 #include "base/macros.h" | |
13 #include "base/time/time.h" | |
14 | |
15 namespace remoting { | |
16 | |
17 class GlCanvas; | |
18 class GlRenderLayer; | |
19 | |
20 // This class draws the cursor feedback on the canvas. | |
21 class GlCursorFeedback { | |
22 public: | |
23 GlCursorFeedback(); | |
24 ~GlCursorFeedback(); | |
25 | |
26 // Sets the canvas on which the cursor feedback will be drawn. Resumes the | |
27 // feedback texture to the context of the new canvas. | |
28 // If |canvas| is nullptr, nothing will happen when calling Draw(). | |
29 void SetCanvas(GlCanvas* canvas); | |
30 | |
31 void StartAnimation(float x, float y, float diameter); | |
32 | |
33 // Returns true if animation is not finished, false otherwise. Does nothing | |
34 // if the animation has stopped. | |
35 bool Draw(); | |
36 | |
37 private: | |
38 std::unique_ptr<GlRenderLayer> layer_; | |
39 float max_diameter_ = 0; | |
40 float cursor_x_ = 0; | |
41 float cursor_y_ = 0; | |
42 base::TimeTicks animation_start_time_; | |
43 | |
44 DISALLOW_COPY_AND_ASSIGN(GlCursorFeedback); | |
45 }; | |
46 | |
47 } // namespace remoting | |
48 #endif // REMOTING_CLIENT_OPENGL_GL_CURSOR_FEEDBACK_H_ | |
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