third_party/WebKit/Source/platform/mac/ThemeMac.h

/*
 * Copyright (C) 2008 Apple 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:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 APPLE INC. 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 ThemeMac_h
#define ThemeMac_h

#include "platform/Theme.h"

namespace blink {

class ThemeMac : public Theme {
public:
    ThemeMac() {}
    ~ThemeMac() override {}

    virtual int baselinePositionAdjustment(ControlPart) const;

    virtual FontDescription controlFont(ControlPart, const FontDescription&, float zoomFactor) const;

    virtual LengthSize controlSize(ControlPart, const FontDescription&, const LengthSize&, float zoomFactor) const;
    virtual LengthSize minimumControlSize(ControlPart, const FontDescription&, float zoomFactor) const;

    virtual LengthBox controlPadding(ControlPart, const FontDescription&, const LengthBox& zoomedBox, float zoomFactor) const;
    virtual LengthBox controlBorder(ControlPart, const FontDescription&, const LengthBox& zoomedBox, float zoomFactor) const;

    virtual bool controlRequiresPreWhiteSpace(ControlPart part) const { return part == PushButtonPart; }

    virtual void paint(ControlPart, ControlStates, GraphicsContext&, const IntRect&, float zoomFactor, ScrollableArea*) const;
    virtual void addVisualOverflow(ControlPart, ControlStates, float zoomFactor, IntRect& borderBox) const;

    // Inflate an IntRect to accout for specific padding around margins.
    enum {
        TopMargin = 0,
        RightMargin = 1,
        BottomMargin = 2,
        LeftMargin = 3
    };
    static PLATFORM_EXPORT IntRect inflateRect(const IntRect&, const IntSize&, const int* margins, float zoomLevel = 1.0f);

    // Inflate an IntRect to account for any bleeding that would happen due to anti-aliasing.
    static PLATFORM_EXPORT IntRect inflateRectForAA(const IntRect&);

    // Inflate an IntRect to account for its focus ring. This is only used when
    // drawWithFrameDrawsFocusRing() returns true (otherwise, the focus ring's
    // bounds could be accurately computed with -[NSCell focusRingMaskBoundsForFrame:inView:]).
    static PLATFORM_EXPORT IntRect inflateRectForFocusRing(const IntRect&);

    static PLATFORM_EXPORT bool drawWithFrameDrawsFocusRing();
};

} // namespace blink

#endif // ThemeMac_h