/* * Copyright (c) 2008, Google 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: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 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. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "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 THE COPYRIGHT * OWNER 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 SkiaFontWin_h #define SkiaFontWin_h #include <windows.h> #include <usp10.h> struct SkPoint; namespace WebCore { class FontPlatformData; class GraphicsContext; class PlatformContextSkia; #if !USE(SKIA_TEXT) // The functions below are used for more complex font drawing (effects such as // stroking and more complex transforms) than Windows supports directly. Since // Windows drawing is faster you should use windowsCanHandleTextDrawing first to // check if using Skia is required at all. // Note that the text will look different (no ClearType) so this should only be // used when necessary. // // When you call a Skia* text drawing function, various glyph outlines will be // cached. As a result, you should call SkiaWinOutlineCache::removePathsForFont // when the font is destroyed so that the cache does not outlive the font (since // the HFONTs are recycled). // // Remember that Skia's text drawing origin is the baseline, like WebKit, not // the top, like Windows. // Returns true if the fillColor and shadowColor are opaque and the text-shadow // is not blurred. bool windowsCanHandleDrawTextShadow(GraphicsContext*); // Returns true if advanced font rendering is recommended. bool windowsCanHandleTextDrawing(GraphicsContext*); // Returns true if advanced font rendering is recommended if shadows are // disregarded. bool windowsCanHandleTextDrawingWithoutShadow(GraphicsContext*); #endif // Note that the offsets parameter is optional. If not null it represents a // per glyph offset (such as returned by ScriptPlace Windows API function). void paintSkiaText(GraphicsContext*, const FontPlatformData&, int numGlyphs, const WORD* glyphs, const int* advances, const GOFFSET* offsets, const SkPoint* origin); // Note that the offsets parameter is optional. If not null it represents a // per glyph offset (such as returned by ScriptPlace Windows API function). // Note: this is less efficient than calling the version with FontPlatformData, // as that caches the SkTypeface object. void paintSkiaText(GraphicsContext*, HFONT, int numGlyphs, const WORD* glyphs, const int* advances, const GOFFSET* offsets, const SkPoint* origin); } // namespace WebCore #endif // SkiaFontWin_h