// Copyright 2016 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.

#ifndef WebFont_h
#define WebFont_h

#include "WebCanvas.h"
#include "WebColor.h"
#include "WebCommon.h"
#include "WebPrivateOwnPtr.h"

namespace blink {

struct WebFloatPoint;
struct WebFloatRect;
struct WebFontDescription;
struct WebRect;
struct WebTextRun;

class WebFont {
public:
    BLINK_PLATFORM_EXPORT static WebFont* create(const WebFontDescription&);
    BLINK_PLATFORM_EXPORT ~WebFont();

    BLINK_PLATFORM_EXPORT WebFontDescription getFontDescription() const;
    BLINK_PLATFORM_EXPORT int ascent() const;
    BLINK_PLATFORM_EXPORT int descent() const;
    BLINK_PLATFORM_EXPORT int height() const;
    BLINK_PLATFORM_EXPORT int lineSpacing() const;
    BLINK_PLATFORM_EXPORT float xHeight() const;
    BLINK_PLATFORM_EXPORT void drawText(WebCanvas*, const WebTextRun&,
        const WebFloatPoint& leftBaseline, WebColor, const WebRect& clip) const;
    BLINK_PLATFORM_EXPORT int calculateWidth(const WebTextRun&) const;
    BLINK_PLATFORM_EXPORT int offsetForPosition(const WebTextRun&,
        float position) const;
    BLINK_PLATFORM_EXPORT WebFloatRect selectionRectForText(
        const WebTextRun&,
        const WebFloatPoint& leftBaseline,
        int height,
        int from = 0,
        int to = -1) const;

private:
    explicit WebFont(const WebFontDescription&);

    class Impl;
    WebPrivateOwnPtr<Impl> m_private;
};

} // namespace blink

#endif