author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Thu, 27 Aug 2009 07:44:59 +0300 | |
changeset 16 | a359256acfc6 |
parent 0 | dd21522fd290 |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (C) 2003, 2004, 2005, 2006 Apple Computer, Inc. All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* 1. Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* 2. Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in the |
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* documentation and/or other materials provided with the distribution. |
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* |
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* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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*/ |
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#import "config.h" |
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#import "GraphicsContext.h" |
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#import "../cg/GraphicsContextPlatformPrivate.h" |
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#import "WebCoreSystemInterface.h" |
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// FIXME: More of this should use CoreGraphics instead of AppKit. |
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// FIXME: More of this should move into GraphicsContextCG.cpp. |
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namespace WebCore { |
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// NSColor, NSBezierPath, and NSGraphicsContext |
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// calls in this file are all exception-safe, so we don't block |
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// exceptions for those. |
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void GraphicsContext::drawFocusRing(const Color& color) |
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{ |
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if (paintingDisabled()) |
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return; |
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int radius = (focusRingWidth() - 1) / 2; |
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int offset = radius + focusRingOffset(); |
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CGColorRef colorRef = color.isValid() ? cgColor(color) : 0; |
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CGMutablePathRef focusRingPath = CGPathCreateMutable(); |
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const Vector<IntRect>& rects = focusRingRects(); |
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unsigned rectCount = rects.size(); |
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for (unsigned i = 0; i < rectCount; i++) |
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CGPathAddRect(focusRingPath, 0, CGRectInset(rects[i], -offset, -offset)); |
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CGContextRef context = platformContext(); |
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// FIXME: This works only inside a NSView's drawRect method. The view must be |
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// focused and this context must be the current NSGraphicsContext. |
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ASSERT(context == [[NSGraphicsContext currentContext] graphicsPort]); |
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NSView* view = [NSView focusView]; |
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ASSERT(view); |
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const NSRect* drawRects; |
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#ifdef __LP64__ |
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long count; |
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#else |
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int count; |
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#endif |
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[view getRectsBeingDrawn:&drawRects count:&count]; |
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|
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// We have to pass in our own clip rectangles here because a bug in CG |
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// seems to inflate the clip (thus allowing the focus ring to paint |
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// slightly outside the clip). |
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NSRect transformedClipRect = [view convertRect:m_data->m_focusRingClip toView:nil]; |
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for (int i = 0; i < count; ++i) { |
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NSRect transformedRect = [view convertRect:drawRects[i] toView:nil]; |
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NSRect rectToUse = NSIntersectionRect(transformedRect, transformedClipRect); |
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if (!NSIsEmptyRect(rectToUse)) { |
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CGContextBeginPath(context); |
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CGContextAddPath(context, focusRingPath); |
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wkDrawFocusRing(context, *(CGRect *)&rectToUse, colorRef, radius); |
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} |
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} |
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CGColorRelease(colorRef); |
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CGPathRelease(focusRingPath); |
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} |
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void GraphicsContext::setCompositeOperation(CompositeOperator op) |
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{ |
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if (paintingDisabled()) |
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return; |
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NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init]; |
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[[NSGraphicsContext graphicsContextWithGraphicsPort:platformContext() flipped:YES] |
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setCompositingOperation:(NSCompositingOperation)op]; |
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[pool drain]; |
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} |
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void GraphicsContext::drawLineForMisspellingOrBadGrammar(const IntPoint& point, int width, bool grammar) |
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{ |
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if (paintingDisabled()) |
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return; |
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// Constants for spelling pattern color |
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static RetainPtr<NSColor> spellingPatternColor = nil; |
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static bool usingDotForSpelling = false; |
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// Constants for grammar pattern color |
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static RetainPtr<NSColor> grammarPatternColor = nil; |
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static bool usingDotForGrammar = false; |
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// These are the same for misspelling or bad grammar |
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int patternHeight = cMisspellingLineThickness; |
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int patternWidth = cMisspellingLinePatternWidth; |
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|
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// Initialize pattern color if needed |
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if (!grammar && !spellingPatternColor) { |
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NSImage *image = [NSImage imageNamed:@"SpellingDot"]; |
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ASSERT(image); // if image is not available, we want to know |
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NSColor *color = (image ? [NSColor colorWithPatternImage:image] : nil); |
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if (color) |
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usingDotForSpelling = true; |
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else |
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color = [NSColor redColor]; |
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spellingPatternColor = color; |
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} |
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|
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if (grammar && !grammarPatternColor) { |
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NSImage *image = [NSImage imageNamed:@"GrammarDot"]; |
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ASSERT(image); // if image is not available, we want to know |
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NSColor *color = (image ? [NSColor colorWithPatternImage:image] : nil); |
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if (color) |
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usingDotForGrammar = true; |
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else |
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color = [NSColor greenColor]; |
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grammarPatternColor = color; |
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} |
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|
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bool usingDot; |
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NSColor *patternColor; |
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if (grammar) { |
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usingDot = usingDotForGrammar; |
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patternColor = grammarPatternColor.get(); |
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} else { |
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usingDot = usingDotForSpelling; |
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patternColor = spellingPatternColor.get(); |
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} |
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|
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// Make sure to draw only complete dots. |
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// NOTE: Code here used to shift the underline to the left and increase the width |
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// to make sure everything gets underlined, but that results in drawing out of |
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// bounds (e.g. when at the edge of a view) and could make it appear that the |
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// space between adjacent misspelled words was underlined. |
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if (usingDot) { |
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// allow slightly more considering that the pattern ends with a transparent pixel |
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int widthMod = width % patternWidth; |
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if (patternWidth - widthMod > cMisspellingLinePatternGapWidth) |
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width -= widthMod; |
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} |
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|
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// FIXME: This code should not use NSGraphicsContext currentContext |
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// In order to remove this requirement we will need to use CGPattern instead of NSColor |
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|
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// Draw underline |
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NSGraphicsContext *currentContext = [NSGraphicsContext currentContext]; |
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CGContextRef context = (CGContextRef)[currentContext graphicsPort]; |
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CGContextSaveGState(context); |
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|
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[patternColor set]; |
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wkSetPatternPhaseInUserSpace(context, point); |
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NSRectFillUsingOperation(NSMakeRect(point.x(), point.y(), width, patternHeight), NSCompositeSourceOver); |
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CGContextRestoreGState(context); |
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} |
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} |