1 /*

     2  * Copyright (C) 2007 Apple Inc.  All rights reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions

     6  * are met:

     7  * 1. Redistributions of source code must retain the above copyright

     8  *    notice, this list of conditions and the following disclaimer.

     9  * 2. Redistributions in binary form must reproduce the above copyright

    10  *    notice, this list of conditions and the following disclaimer in the

    11  *    documentation and/or other materials provided with the distribution.

    12  *

    13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY

    14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

    15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR

    16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR

    17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,

    18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,

    19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR

    20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY

    21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 

    24  */

    25 

    26 #ifndef WebKitGraphics_h

    27 #define WebKitGraphics_h

    28 

    29 #include <windows.h>

    30 

    31 typedef struct CGColor* CGColorRef;

    32 typedef struct CGContext* CGContextRef;

    33 

    34 typedef wchar_t WCHAR;

    35 typedef __nullterminated const WCHAR* LPCWSTR;

    36 typedef LPCWSTR LPCTSTR;

    37 

    38 struct WebFontDescription {

    39     LPCTSTR family;

    40     unsigned familyLength;

    41     float size;

    42     bool bold;

    43     bool italic;

    44 };

    45 

    46 struct WebTextRenderInfo

    47 {

    48     DWORD structSize;

    49     CGContextRef cgContext;

    50     LPCTSTR text;

    51     int length;

    52     POINT pt;

    53     const WebFontDescription* description;

    54     CGColorRef color;

    55     int underlinedIndex;

    56     bool drawAsPassword;

    57     int overrideSmoothingLevel; // pass in -1 if caller does not want to override smoothing level

    58 };

    59 

    60 void DrawTextAtPoint(CGContextRef, LPCTSTR text, int length, POINT, const WebFontDescription&, CGColorRef, int underlinedIndex = -1, bool drawAsPassword = false);

    61 void WebDrawText(WebTextRenderInfo*);

    62 float TextFloatWidth(LPCTSTR text, int length, const WebFontDescription&);

    63 void FontMetrics(const WebFontDescription&, int* ascent, int* descent, int* lineSpacing);

    64 

    65 // buffer must be large enough to hold all of "text", including its null terminator.

    66 void CenterTruncateStringToWidth(LPCTSTR text, int length, const WebFontDescription&, float width, WCHAR* buffer);

    67 void RightTruncateStringToWidth(LPCTSTR text, int length, const WebFontDescription&, float width, WCHAR* buffer);

    68 

    69 #endif // !defined(WebKitGraphics_h)