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 3 // found in the LICENSE file. 4 5 #ifndef UI_VIEWS_WINDOW_FRAME_BACKGROUND_H_ 6 #define UI_VIEWS_WINDOW_FRAME_BACKGROUND_H_ 7 8 #include "base/basictypes.h" 9 #include "third_party/skia/include/core/SkColor.h" 10 #include "ui/views/views_export.h" 11 12 namespace gfx { 13 class Canvas; 14 class ImageSkia; 15 } 16 17 namespace views { 18 19 class View; 20 21 // FrameBackground handles painting for all the various window frames we 22 // support in Chrome. It intends to consolidate paint code that historically 23 // was copied. One frame to rule them all! 24 class VIEWS_EXPORT FrameBackground { 25 public: 26 FrameBackground(); 27 ~FrameBackground(); 28 29 // Sets the color to draw under the frame images. 30 void set_frame_color(SkColor color) { frame_color_ = color; } 31 32 // Sets the theme image for the top of the window. May be NULL. 33 // Memory is owned by the caller. 34 void set_theme_image(const gfx::ImageSkia* image) { theme_image_ = image; } 35 36 // Sets an image that overlays the top window image. Usually used to add 37 // edge highlighting to provide the illusion of depth. May be NULL. 38 // Memory is owned by the caller. 39 void set_theme_overlay_image(gfx::ImageSkia* image) { 40 theme_overlay_image_ = image; 41 } 42 43 // Sets the height of the top area to fill with the default frame color, 44 // which must extend behind the tab strip. 45 void set_top_area_height(int height) { top_area_height_ = height; } 46 47 // Only used if we have an overlay image for the theme. 48 void set_theme_background_y(int y) { theme_background_y_ = y; } 49 50 // Vertical offset for theme image when drawing maximized. 51 void set_maximized_top_offset(int offset) { maximized_top_offset_ = offset; } 52 53 // Sets images used when drawing the sides of the frame. 54 // Caller owns the memory. 55 void SetSideImages(const gfx::ImageSkia* left, 56 const gfx::ImageSkia* top, 57 const gfx::ImageSkia* right, 58 const gfx::ImageSkia* bottom); 59 60 // Sets images used when drawing the corners of the frame. 61 // Caller owns the memory. 62 void SetCornerImages(const gfx::ImageSkia* top_left, 63 const gfx::ImageSkia* top_right, 64 const gfx::ImageSkia* bottom_left, 65 const gfx::ImageSkia* bottom_right); 66 67 // Paints the border for a standard, non-maximized window. Also paints the 68 // background of the title bar area, since the top frame border and the 69 // title bar background are a contiguous component. 70 void PaintRestored(gfx::Canvas* canvas, View* view) const; 71 72 // Paints the border for a maximized window, which does not include the 73 // window edges. 74 void PaintMaximized(gfx::Canvas* canvas, View* view) const; 75 76 private: 77 // Fills the frame area with the frame color. 78 void PaintFrameColor(gfx::Canvas* canvas, View* view) const; 79 80 SkColor frame_color_; 81 const gfx::ImageSkia* theme_image_; 82 gfx::ImageSkia* theme_overlay_image_; 83 int top_area_height_; 84 85 // Images for the sides of the frame. 86 const gfx::ImageSkia* left_edge_; 87 const gfx::ImageSkia* top_edge_; 88 const gfx::ImageSkia* right_edge_; 89 const gfx::ImageSkia* bottom_edge_; 90 91 // Images for the corners of the frame. 92 const gfx::ImageSkia* top_left_corner_; 93 const gfx::ImageSkia* top_right_corner_; 94 const gfx::ImageSkia* bottom_left_corner_; 95 const gfx::ImageSkia* bottom_right_corner_; 96 97 // Attributes for maximized window painting. 98 // TODO(jamescook): Remove all these. 99 gfx::ImageSkia* maximized_top_left_; 100 gfx::ImageSkia* maximized_top_right_; 101 int maximized_top_offset_; 102 int theme_background_y_; 103 104 DISALLOW_COPY_AND_ASSIGN(FrameBackground); 105 }; 106 107 } // namespace views 108 109 #endif // UI_VIEWS_WINDOW_FRAME_BACKGROUND_H_ 110
