/* * Copyright (C) 2009 Apple 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 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. */ #include "config.h" #if USE(ACCELERATED_COMPOSITING) #import "WebLayer.h" #import "GraphicsContext.h" #import "GraphicsLayer.h" #import <QuartzCore/QuartzCore.h> #import "WebCoreTextRenderer.h" #import <wtf/UnusedParam.h> using namespace WebCore; @implementation WebLayer + (void)drawContents:(WebCore::GraphicsLayer*)layerContents ofLayer:(CALayer*)layer intoContext:(CGContextRef)context { UNUSED_PARAM(layer); CGContextSaveGState(context); if (layerContents && layerContents->client()) { [NSGraphicsContext saveGraphicsState]; // Set up an NSGraphicsContext for the context, so that parts of AppKit that rely on // the current NSGraphicsContext (e.g. NSCell drawing) get the right one. NSGraphicsContext* layerContext = [NSGraphicsContext graphicsContextWithGraphicsPort:context flipped:YES]; [NSGraphicsContext setCurrentContext:layerContext]; GraphicsContext graphicsContext(context); // It's important to get the clip from the context, because it may be significantly // smaller than the layer bounds (e.g. tiled layers) CGRect clipBounds = CGContextGetClipBoundingBox(context); IntRect clip(enclosingIntRect(clipBounds)); layerContents->paintGraphicsLayerContents(graphicsContext, clip); [NSGraphicsContext restoreGraphicsState]; } #ifndef NDEBUG else { ASSERT_NOT_REACHED(); // FIXME: ideally we'd avoid calling -setNeedsDisplay on a layer that is a plain color, // so CA never makes backing store for it (which is what -setNeedsDisplay will do above). CGContextSetRGBFillColor(context, 0.0f, 1.0f, 0.0f, 1.0f); CGRect aBounds = [layer bounds]; CGContextFillRect(context, aBounds); } #endif CGContextRestoreGState(context); #ifndef NDEBUG if (layerContents && layerContents->showRepaintCounter()) { bool isTiledLayer = [layer isKindOfClass:[CATiledLayer class]]; char text[16]; // that's a lot of repaints snprintf(text, sizeof(text), "%d", layerContents->incrementRepaintCount()); CGAffineTransform a = CGContextGetCTM(context); CGContextSaveGState(context); if (isTiledLayer) CGContextSetRGBFillColor(context, 0.0f, 1.0f, 0.0f, 0.8f); else CGContextSetRGBFillColor(context, 1.0f, 0.0f, 0.0f, 0.8f); CGRect aBounds = [layer bounds]; aBounds.size.width = 10 + 12 * strlen(text); aBounds.size.height = 25; CGContextFillRect(context, aBounds); CGContextSetRGBFillColor(context, 0.0f, 0.0f, 0.0f, 1.0f); CGContextSetTextMatrix(context, CGAffineTransformMakeScale(1.0f, -1.0f)); CGContextSelectFont(context, "Helvetica", 25, kCGEncodingMacRoman); CGContextShowTextAtPoint(context, aBounds.origin.x + 3.0f, aBounds.origin.y + 20.0f, text, strlen(text)); CGContextRestoreGState(context); } #endif } // Disable default animations - (id<CAAction>)actionForKey:(NSString *)key { UNUSED_PARAM(key); return nil; } // Implement this so presentationLayer can get our custom attributes - (id)initWithLayer:(id)layer { if ((self = [super initWithLayer:layer])) m_layerOwner = [(WebLayer*)layer layerOwner]; return self; } - (void)setNeedsDisplay { if (m_layerOwner && m_layerOwner->client() && m_layerOwner->drawsContent()) [super setNeedsDisplay]; } - (void)setNeedsDisplayInRect:(CGRect)dirtyRect { if (m_layerOwner && m_layerOwner->client() && m_layerOwner->drawsContent()) { [super setNeedsDisplayInRect:dirtyRect]; #ifndef NDEBUG if (m_layerOwner->showRepaintCounter()) { CGRect bounds = [self bounds]; [super setNeedsDisplayInRect:CGRectMake(bounds.origin.x, bounds.origin.y, 46, 25)]; } #endif } } - (void)drawInContext:(CGContextRef)context { [WebLayer drawContents:m_layerOwner ofLayer:self intoContext:context]; } @end // implementation WebLayer #pragma mark - @implementation WebLayer(WebLayerAdditions) - (void)setLayerOwner:(GraphicsLayer*)aLayer { m_layerOwner = aLayer; } - (GraphicsLayer*)layerOwner { return m_layerOwner; } @end #pragma mark - #ifndef NDEBUG @implementation CALayer(ExtendedDescription) - (NSString*)_descriptionWithPrefix:(NSString*)inPrefix { CGRect aBounds = [self bounds]; CGPoint aPos = [self position]; CATransform3D t = [self transform]; NSString* selfString = [NSString stringWithFormat:@"%@<%@ 0x%08x> \"%@\" bounds(%.1f, %.1f, %.1f, %.1f) pos(%.1f, %.1f), sublayers=%d masking=%d", inPrefix, [self class], self, [self name], aBounds.origin.x, aBounds.origin.y, aBounds.size.width, aBounds.size.height, aPos.x, aPos.y, [[self sublayers] count], [self masksToBounds]]; NSMutableString* curDesc = [NSMutableString stringWithString:selfString]; if ([[self sublayers] count] > 0) [curDesc appendString:@"\n"]; NSString* sublayerPrefix = [inPrefix stringByAppendingString:@"\t"]; NSEnumerator* sublayersEnum = [[self sublayers] objectEnumerator]; CALayer* curLayer; while ((curLayer = [sublayersEnum nextObject])) [curDesc appendString:[curLayer _descriptionWithPrefix:sublayerPrefix]]; if ([[self sublayers] count] == 0) [curDesc appendString:@"\n"]; return curDesc; } - (NSString*)extendedDescription { return [self _descriptionWithPrefix:@""]; } @end // implementation WebLayer(ExtendedDescription) #endif // NDEBUG #endif // USE(ACCELERATED_COMPOSITING)