1 /* 2 * Copyright (C) 2009 Apple Inc. All rights reserved. 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 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 28 #if USE(ACCELERATED_COMPOSITING) 29 30 #include "WebLayer.h" 31 32 #include "Font.h" 33 #include "GraphicsLayer.h" 34 35 namespace WebCore { 36 37 using namespace std; 38 39 void WebLayer::internalSetNeedsDisplay(const CGRect* dirtyRect) 40 { 41 if (m_owner) { 42 if (m_owner->showRepaintCounter()) { 43 CGRect layerBounds = bounds(); 44 CGRect repaintCounterRect = layerBounds; 45 // We assume a maximum of 4 digits and a font size of 18. 46 repaintCounterRect.size.width = 80; 47 repaintCounterRect.size.height = 22; 48 if (m_owner->contentsOrientation() == WebCore::GraphicsLayer::CompositingCoordinatesTopDown) 49 repaintCounterRect.origin.y = layerBounds.size.height - (layerBounds.origin.y + repaintCounterRect.size.height); 50 WKCACFLayer::internalSetNeedsDisplay(&repaintCounterRect); 51 } 52 if (dirtyRect && m_owner->contentsOrientation() == WebCore::GraphicsLayer::CompositingCoordinatesTopDown) { 53 CGRect flippedDirtyRect = *dirtyRect; 54 flippedDirtyRect.origin.y = bounds().size.height - (flippedDirtyRect.origin.y + flippedDirtyRect.size.height); 55 WKCACFLayer::internalSetNeedsDisplay(&flippedDirtyRect); 56 return; 57 } 58 } 59 60 WKCACFLayer::internalSetNeedsDisplay(dirtyRect); 61 } 62 63 void WebLayer::drawInContext(PlatformGraphicsContext* context) 64 { 65 if (!m_owner) 66 return; 67 68 CGContextSaveGState(context); 69 70 CGRect layerBounds = bounds(); 71 if (m_owner->contentsOrientation() == WebCore::GraphicsLayer::CompositingCoordinatesTopDown) { 72 CGContextScaleCTM(context, 1, -1); 73 CGContextTranslateCTM(context, 0, -layerBounds.size.height); 74 } 75 76 if (m_owner->client()) { 77 GraphicsContext graphicsContext(context); 78 79 // It's important to get the clip from the context, because it may be significantly 80 // smaller than the layer bounds (e.g. tiled layers) 81 CGRect clipBounds = CGContextGetClipBoundingBox(context); 82 IntRect clip(enclosingIntRect(clipBounds)); 83 m_owner->paintGraphicsLayerContents(graphicsContext, clip); 84 } 85 #ifndef NDEBUG 86 else { 87 ASSERT_NOT_REACHED(); 88 89 // FIXME: ideally we'd avoid calling -setNeedsDisplay on a layer that is a plain color, 90 // so CA never makes backing store for it (which is what -setNeedsDisplay will do above). 91 CGContextSetRGBFillColor(context, 0.0f, 1.0f, 0.0f, 1.0f); 92 CGContextFillRect(context, layerBounds); 93 } 94 #endif 95 96 if (m_owner->showRepaintCounter()) { 97 String text = String::number(m_owner->incrementRepaintCount()); 98 99 CGContextSaveGState(context); 100 101 // Make the background of the counter the same as the border color, 102 // unless there is no border, then make it red 103 float borderWidth = CACFLayerGetBorderWidth(layer()); 104 if (borderWidth > 0) { 105 CGColorRef borderColor = CACFLayerGetBorderColor(layer()); 106 const CGFloat* colors = CGColorGetComponents(borderColor); 107 CGContextSetRGBFillColor(context, colors[0], colors[1], colors[2], colors[3]); 108 } else 109 CGContextSetRGBFillColor(context, 1.0f, 0.0f, 0.0f, 0.8f); 110 111 CGRect aBounds = layerBounds; 112 113 aBounds.size.width = 10 + 10 * text.length(); 114 aBounds.size.height = 22; 115 CGContextFillRect(context, aBounds); 116 117 FontDescription desc; 118 119 NONCLIENTMETRICS metrics; 120 metrics.cbSize = sizeof(metrics); 121 SystemParametersInfo(SPI_GETNONCLIENTMETRICS, metrics.cbSize, &metrics, 0); 122 FontFamily family; 123 family.setFamily(metrics.lfSmCaptionFont.lfFaceName); 124 desc.setFamily(family); 125 126 desc.setComputedSize(18); 127 128 Font font = Font(desc, 0, 0); 129 font.update(0); 130 131 GraphicsContext cg(context); 132 cg.setFillColor(Color::black, ColorSpaceDeviceRGB); 133 cg.drawText(font, TextRun(text), IntPoint(aBounds.origin.x + 5, aBounds.origin.y + 17)); 134 135 CGContextRestoreGState(context); 136 } 137 138 CGContextRestoreGState(context); 139 } 140 141 } 142 143 #endif // USE(ACCELERATED_COMPOSITING) 144