Switch to a single merged version of WebThemeEngine.h

public/platform/default/WebThemeEngine.h

-/*
- * Copyright (C) 2010 Google Inc. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef WebThemeEngine_h
-#define WebThemeEngine_h
-
-#include "../WebCanvas.h"
-#include "../WebColor.h"
-#include "../WebSize.h"
-
-namespace blink {
-
-struct WebRect;
-
-class WebThemeEngine {
-public:
-    // The UI part which is being accessed.
-    enum Part {
-        // ScrollbarTheme parts
-        PartScrollbarDownArrow,
-        PartScrollbarLeftArrow,
-        PartScrollbarRightArrow,
-        PartScrollbarUpArrow,
-        PartScrollbarHorizontalThumb,
-        PartScrollbarVerticalThumb,
-        PartScrollbarHorizontalTrack,
-        PartScrollbarVerticalTrack,
-        PartScrollbarCorner,
-
-        // RenderTheme parts
-        PartCheckbox,
-        PartRadio,
-        PartButton,
-        PartTextField,
-        PartMenuList,
-        PartSliderTrack,
-        PartSliderThumb,
-        PartInnerSpinButton,
-        PartProgressBar
-    };
-
-    // The current state of the associated Part.
-    enum State {
-        StateDisabled,
-        StateHover,
-        StateNormal,
-        StatePressed,
-        StateFocused,
-        StateReadonly,
-    };
-
-    // Extra parameters for drawing the PartScrollbarHorizontalTrack and
-    // PartScrollbarVerticalTrack.
-    struct ScrollbarTrackExtraParams {
-        bool isBack; // Whether this is the 'back' part or the 'forward' part.
-
-        // The bounds of the entire track, as opposed to the part being painted.
-        int trackX;
-        int trackY;
-        int trackWidth;
-        int trackHeight;
-    };
-
-    // Extra parameters for PartCheckbox, PartPushButton and PartRadio.
-    struct ButtonExtraParams {
-        bool checked;
-        bool indeterminate; // Whether the button state is indeterminate.
-        bool isDefault; // Whether the button is default button.
-        bool hasBorder;
-        WebColor backgroundColor;
-    };
-
-    // Extra parameters for PartTextField
-    struct TextFieldExtraParams {
-        bool isTextArea;
-        bool isListbox;
-        WebColor backgroundColor;
-    };
-
-    // Extra parameters for PartMenuList
-    struct MenuListExtraParams {
-        bool hasBorder;
-        bool hasBorderRadius;
-        int arrowX;
-        int arrowY;
-        int arrowHeight;
-        WebColor backgroundColor;
-        bool fillContentArea;
-    };
-
-    // Extra parameters for PartSliderTrack and PartSliderThumb
-    struct SliderExtraParams {
-        bool vertical;
-        bool inDrag;
-    };
-
-    // Extra parameters for PartInnerSpinButton
-    struct InnerSpinButtonExtraParams {
-        bool spinUp;
-        bool readOnly;
-    };
-
-    // Extra parameters for PartProgressBar
-    struct ProgressBarExtraParams {
-        bool determinate;
-        int valueRectX;
-        int valueRectY;
-        int valueRectWidth;
-        int valueRectHeight;
-    };
-
-    union ExtraParams {
-        ScrollbarTrackExtraParams scrollbarTrack;
-        ButtonExtraParams button;
-        TextFieldExtraParams textField;
-        MenuListExtraParams menuList;
-        SliderExtraParams slider;
-        InnerSpinButtonExtraParams innerSpin;
-        ProgressBarExtraParams progressBar;
-    };
-
-    // Gets the size of the given theme part. For variable sized items
-    // like vertical scrollbar thumbs, the width will be the required width of
-    // the track while the height will be the minimum height.
-    virtual WebSize getSize(Part) { return WebSize(); }
-    // Paint the given the given theme part.
-    virtual void paint(WebCanvas*, Part, State, const WebRect&, const ExtraParams*) { }
-};
-
-} // namespace blink
-
-#endif