| /* |
| * 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 <wtf/UnusedParam.h> |
| |
| using namespace WebCore; |
| |
| @implementation WebLayer |
| |
| + (void)drawContents:(WebCore::GraphicsLayer*)layerContents ofLayer:(CALayer*)layer intoContext:(CGContextRef)context |
| { |
| if (!layerContents) |
| return; |
| |
| CGContextSaveGState(context); |
| |
| CGRect layerBounds = [layer bounds]; |
| if (layerContents->contentsOrientation() == WebCore::GraphicsLayer::CompositingCoordinatesBottomUp) { |
| CGContextScaleCTM(context, 1, -1); |
| CGContextTranslateCTM(context, 0, -layerBounds.size.height); |
| } |
| |
| if (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); |
| CGContextFillRect(context, layerBounds); |
| } |
| #endif |
| |
| if (layerContents->showRepaintCounter()) { |
| bool isTiledLayer = [layer isKindOfClass:[CATiledLayer class]]; |
| |
| char text[16]; // that's a lot of repaints |
| snprintf(text, sizeof(text), "%d", layerContents->incrementRepaintCount()); |
| |
| 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 = layerBounds; |
| |
| 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); |
| } |
| |
| CGContextRestoreGState(context); |
| } |
| |
| // 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()) { |
| #if defined(BUILDING_ON_LEOPARD) |
| dirtyRect = CGRectApplyAffineTransform(dirtyRect, [self contentsTransform]); |
| #endif |
| [super setNeedsDisplayInRect:dirtyRect]; |
| |
| #ifndef NDEBUG |
| if (m_layerOwner->showRepaintCounter()) { |
| CGRect bounds = [self bounds]; |
| CGRect indicatorRect = CGRectMake(bounds.origin.x, bounds.origin.y, 46, 25); |
| #if defined(BUILDING_ON_LEOPARD) |
| indicatorRect = CGRectApplyAffineTransform(indicatorRect, [self contentsTransform]); |
| #endif |
| [super setNeedsDisplayInRect:indicatorRect]; |
| } |
| #endif |
| } |
| } |
| |
| - (void)display |
| { |
| [super display]; |
| if (m_layerOwner) |
| m_layerOwner->didDisplay(self); |
| } |
| |
| - (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) |