/* * Copyright (C) 2003 Apple Computer, 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. */ #import <Cocoa/Cocoa.h> #ifndef ROUND_TO_INT #define ROUND_TO_INT(x) (unsigned int)((x)+.5) #endif @protocol WebCoreTextRenderer <NSObject> // vertical metrics - (int)ascent; - (int)descent; - (int)lineSpacing; - (float)xHeight; // horizontal metrics - (float)floatWidthForCharacters:(const unichar *)characters stringLength:(unsigned)length fromCharacterPosition:(int)pos numberOfCharacters:(int)len withPadding:(int)padding applyRounding:(BOOL)applyRounding attemptFontSubstitution:(BOOL)attemptFontSubstitution widths:(float *)buffer letterSpacing:(int)letterSpacing wordSpacing:(int)wordSpacing smallCaps:(BOOL)smallCaps fontFamilies:(NSString **)families; // drawing - (void)drawCharacters:(const UniChar *)characters stringLength:(unsigned)length fromCharacterPosition:(int)from toCharacterPosition:(int)to atPoint:(NSPoint)point withPadding:(int)padding withTextColor:(NSColor *)textColor backgroundColor:(NSColor *)backgroundColor rightToLeft:(BOOL)rtl letterSpacing:(int)letterSpacing wordSpacing:(int)wordSpacing smallCaps:(BOOL)smallCaps fontFamilies:(NSString **)families; - (void)drawLineForCharacters:(NSPoint)point yOffset:(float)yOffset withWidth:(int)width withColor:(NSColor *)color; @end