1 /* 2 * Copyright (C) 2008 Eric Seidel <eric (at) webkit.org> 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 #include "config.h" 27 #include "Pattern.h" 28 29 #include "AffineTransform.h" 30 #include "GraphicsContext.h" 31 32 #include <cairo.h> 33 34 namespace WebCore { 35 36 cairo_pattern_t* Pattern::createPlatformPattern(const AffineTransform&) const 37 { 38 cairo_surface_t* surface = tileImage()->nativeImageForCurrentFrame(); 39 if (!surface) 40 return 0; 41 42 cairo_pattern_t* pattern = cairo_pattern_create_for_surface(surface); 43 44 // cairo merges patter space and user space itself 45 cairo_matrix_t matrix = m_patternSpaceTransformation; 46 cairo_matrix_invert(&matrix); 47 cairo_pattern_set_matrix(pattern, &matrix); 48 49 if (m_repeatX || m_repeatY) 50 cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT); 51 return pattern; 52 } 53 54 } 55
