WebKit/win/WebKitGraphics.h

/*
 * Copyright (C) 2007 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 COMPUTER, 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 COMPUTER, 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 WebKitGraphics_h
#define WebKitGraphics_h

#include <windows.h>

typedef struct CGColor* CGColorRef;
typedef struct CGContext* CGContextRef;

typedef wchar_t WCHAR;
typedef __nullterminated const WCHAR* LPCWSTR;
typedef LPCWSTR LPCTSTR;

struct WebFontDescription {
    LPCTSTR family;
    unsigned familyLength;
    float size;
    bool bold;
    bool italic;
};

struct WebTextRenderInfo
{
    DWORD structSize;
    CGContextRef cgContext;
    LPCTSTR text;
    int length;
    POINT pt;
    const WebFontDescription* description;
    CGColorRef color;
    int underlinedIndex;
    bool drawAsPassword;
    int overrideSmoothingLevel; // pass in -1 if caller does not want to override smoothing level
};

void DrawTextAtPoint(CGContextRef, LPCTSTR text, int length, POINT, const WebFontDescription&, CGColorRef, int underlinedIndex = -1, bool drawAsPassword = false);
void WebDrawText(WebTextRenderInfo*);
float TextFloatWidth(LPCTSTR text, int length, const WebFontDescription&);
void FontMetrics(const WebFontDescription&, int* ascent, int* descent, int* lineSpacing);

// buffer must be large enough to hold all of "text", including its null terminator.
void CenterTruncateStringToWidth(LPCTSTR text, int length, const WebFontDescription&, float width, WCHAR* buffer);
void RightTruncateStringToWidth(LPCTSTR text, int length, const WebFontDescription&, float width, WCHAR* buffer);

#endif // !defined(WebKitGraphics_h)