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Diffstat (limited to 'webkit/tools/test_shell/test_shell_webthemecontrol.h')
| -rw-r--r-- | webkit/tools/test_shell/test_shell_webthemecontrol.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/webkit/tools/test_shell/test_shell_webthemecontrol.h b/webkit/tools/test_shell/test_shell_webthemecontrol.h new file mode 100644 index 0000000..bb439af --- /dev/null +++ b/webkit/tools/test_shell/test_shell_webthemecontrol.h @@ -0,0 +1,170 @@ +// Copyright (c) 2009 The Chromium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// TestShellWebTheme::Control implements the generic rendering of controls +// needed by TestShellWebTheme::Engine. See the comments in that class +// header file for why this class is needed and used. +// +// This class implements a generic set of widgets using Skia. The widgets +// are optimized for testability, not a pleasing appearance. +// + +#ifndef WEBKIT_TOOLS_TEST_SHELL_TEST_SHELL_WEBTHEMECONTROL_H_ +#define WEBKIT_TOOLS_TEST_SHELL_TEST_SHELL_WEBTHEMECONTROL_H_ + +#include "base/basictypes.h" +#include "skia/ext/platform_canvas.h" +#include "third_party/skia/include/core/SkColor.h" +#include "third_party/skia/include/core/SkRect.h" + +namespace TestShellWebTheme { + +class Control { + public: + // This list of states mostly mirrors the list in + // third_party/WebKit/WebCore/platform/ThemeTypes.h but is maintained + // separately since that isn't public and also to minimize dependencies. + // Note that the WebKit ThemeTypes seem to imply that a control can be + // in multiple states simultaneously but WebThemeEngine only allows for + // a single state at a time. + // + // Some definitions for the various states: + // Disabled - indicates that a control can't be modified or selected + // (corresponds to HTML 'disabled' attribute) + // ReadOnly - indicates that a control can't be modified but can be + // selected + // Normal - the normal state of control on the page when it isn't + // focused or otherwise active + // Hot - when the mouse is hovering over a part of the control, + // all the other parts are considered "hot" + // Hover - when the mouse is directly over a control (the CSS + // :hover pseudo-class) + // Focused - when the control has the keyboard focus + // Pressed - when the control is being triggered (by a mousedown or + // a key event). + enum State { + kUnknown_State = 0, + kDisabled_State, + kReadOnly_State, + kNormal_State, + kHot_State, + kHover_State, + kFocused_State, + kPressed_State + }; + + // This list of types mostly mirrors the list in + // third_party/WebKit/WebCore/platform/ThemeTypes.h but is maintained + // separately since that isn't public and also to minimize dependencies. + // + // Note that what the user might think of as a single control can be + // made up of multiple parts. For example, a single scroll bar contains + // six clickable parts - two arrows, the "thumb" indicating the current + // position on the bar, the other two parts of the bar (before and after + // the thumb) and the "gripper" on the thumb itself. + // + enum Type { + kUnknown_Type = 0, + kTextField_Type, + kPushButton_Type, + kUncheckedBox_Type, + kCheckedBox_Type, + kUncheckedRadio_Type, + kCheckedRadio_Type, + kHorizontalScrollTrackBack_Type, + kHorizontalScrollTrackForward_Type, + kHorizontalScrollThumb_Type, + kHorizontalScrollGrip_Type, + kVerticalScrollTrackBack_Type, + kVerticalScrollTrackForward_Type, + kVerticalScrollThumb_Type, + kVerticalScrollGrip_Type, + kLeftArrow_Type, + kRightArrow_Type, + kUpArrow_Type, + kDownArrow_Type, + kHorizontalSliderTrack_Type, + kHorizontalSliderThumb_Type, + kDropDownButton_Type + }; + + // canvas is the canvas to draw onto, and rect gives the size of the + // control. ctype and cstate specify the type and state of the control. + Control(skia::PlatformCanvas *canvas, const SkIRect &rect, + Type ctype, State cstate); + ~Control(); + + // Draws the control. + void draw(); + + // Use this for TextField controls instead, because the logic + // for drawing them is dependent on what WebKit tells us to do. + // If draw_edges is true, draw an edge around the control. If + // fill_content_area is true, fill the content area with the given color. + void drawTextField(bool draw_edges, bool fill_content_area, SkColor color); + + private: + // Draws a box of size specified by irect, filled with the given color. + // The box will have a border drawn in the default edge color. + void box(const SkIRect &irect, SkColor color); + + + // Draws a triangle of size specified by the three pairs of coordinates, + // filled with the given color. The box will have an edge drawn in the + // default edge color. + void triangle(int x0, int y0, int x1, int y1, int x2, int y2, + SkColor color); + + // Draws a rectangle the size of the control with rounded corners, filled + // with the specified color (and with a border in the default edge color). + void roundRect(SkColor color); + + // Draws an oval the size of the control, filled with the specified color + // and with a border in the default edge color. + void oval(SkColor color); + + // Draws a circle centered in the control with the specified radius, + // filled with the specified color, and with a border draw in the + // default edge color. + void circle(SkScalar radius, SkColor color); + + // Draws a box the size of the control, filled with the outer_color and + // with a border in the default edge color, and then draws another box + // indented on all four sides by the specified amounts, filled with the + // inner color and with a border in the default edge color. + void nested_boxes(int indent_left, int indent_top, + int indent_right, int indent_bottom, + SkColor outer_color, SkColor inner_color); + + // Draws a line between the two points in the given color. + void line(int x0, int y0, int x1, int y1, SkColor color); + + // Draws a distinctive mark on the control for each state, so that the + // state of the control can be determined without needing to know which + // color is which. + void markState(); + + skia::PlatformCanvas* canvas_; + const SkIRect irect_; + const Type type_; + const State state_; + const SkColor edge_color_; + const SkColor bg_color_; + const SkColor fg_color_; + + // The following are convenience accessors for irect_. + const int left_; + const int right_; + const int top_; + const int bottom_; + const int width_; + const int height_; + + DISALLOW_COPY_AND_ASSIGN(Control); +}; + +} // namespace TestShellWebTheme + +#endif // WEBKIT_TOOLS_TEST_SHELL_TEST_SHELL_WEBTHEMECONTROL_H_ + |