[SCM] WebKit Debian packaging branch, debian/experimental, updated. upstream/1.3.3-10851-g50815da
commit-queue at webkit.org
commit-queue at webkit.org
Wed Dec 22 17:47:16 UTC 2010
The following commit has been merged in the debian/experimental branch:
commit e4a51d20856436025eb04a5fd1141bbeee21f67a
Author: commit-queue at webkit.org <commit-queue at webkit.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc>
Date: Tue Nov 30 10:03:25 2010 +0000
2010-11-30 Helder Correia <helder at sencha.com>
Reviewed by Kenneth Rohde Christiansen.
[Qt] Path filling should keep shadow offset after context scaling
https://bugs.webkit.org/show_bug.cgi?id=50194
New fast canvas test to ensure correct behavior of path fill shadow
when using scaling.
* fast/canvas/canvas-scale-fillPath-shadow-expected.txt: Added.
* fast/canvas/canvas-scale-fillPath-shadow.html: Added.
* fast/canvas/script-tests/canvas-scale-fillPath-shadow.js: Added.
2010-11-30 Helder Correia <helder at sencha.com>
Reviewed by Kenneth Rohde Christiansen.
[Qt] Path filling should keep shadow offset after context scaling
https://bugs.webkit.org/show_bug.cgi?id=50194
Handle the special case when scaling is used and translate the shadow
offset accordingly. The correct behavior is ensured in ContextShadow
already, the issue only happens when using a non-blur shadow.
Test: fast/canvas/canvas-scale-fillPath-shadow.html
* platform/graphics/qt/GraphicsContextQt.cpp:
(WebCore::GraphicsContext::fillPath):
git-svn-id: http://svn.webkit.org/repository/webkit/trunk@72898 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/LayoutTests/ChangeLog b/LayoutTests/ChangeLog
index ec1b5f8..e242dd6 100644
--- a/LayoutTests/ChangeLog
+++ b/LayoutTests/ChangeLog
@@ -1,3 +1,17 @@
+2010-11-30 Helder Correia <helder at sencha.com>
+
+ Reviewed by Kenneth Rohde Christiansen.
+
+ [Qt] Path filling should keep shadow offset after context scaling
+ https://bugs.webkit.org/show_bug.cgi?id=50194
+
+ New fast canvas test to ensure correct behavior of path fill shadow
+ when using scaling.
+
+ * fast/canvas/canvas-scale-fillPath-shadow-expected.txt: Added.
+ * fast/canvas/canvas-scale-fillPath-shadow.html: Added.
+ * fast/canvas/script-tests/canvas-scale-fillPath-shadow.js: Added.
+
2010-11-30 Csaba Osztrogonác <ossy at webkit.org>
Reviewed by Andreas Kling.
diff --git a/LayoutTests/fast/canvas/canvas-scale-fillPath-shadow-expected.txt b/LayoutTests/fast/canvas/canvas-scale-fillPath-shadow-expected.txt
new file mode 100644
index 0000000..5a9fb84
--- /dev/null
+++ b/LayoutTests/fast/canvas/canvas-scale-fillPath-shadow-expected.txt
@@ -0,0 +1,57 @@
+Ensure correct behavior of canvas with path fill + shadow after scaling. A blue and red checkered pattern should be displayed.
+
+On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
+
+
+PASS d[0] is 255
+PASS d[1] is 0
+PASS d[2] is 0
+PASS d[3] is 255
+PASS d[0] is 255
+PASS d[1] is 0
+PASS d[2] is 0
+PASS d[3] is 255
+PASS d[0] is 255
+PASS d[1] is 0
+PASS d[2] is 0
+PASS d[3] is 255
+PASS d[0] is 255
+PASS d[1] is 0
+PASS d[2] is 0
+PASS d[3] is around 76
+PASS d[0] is 255
+PASS d[1] is 0
+PASS d[2] is 0
+PASS d[3] is around 76
+PASS d[0] is 255
+PASS d[1] is 0
+PASS d[2] is 0
+PASS d[3] is around 76
+PASS d[0] is 255
+PASS d[1] is 0
+PASS d[2] is 0
+PASS d[3] is around 83
+PASS d[0] is 255
+PASS d[1] is 0
+PASS d[2] is 0
+PASS d[3] is around 83
+PASS d[0] is 255
+PASS d[1] is 0
+PASS d[2] is 0
+PASS d[3] is around 53
+PASS d[0] is 255
+PASS d[1] is 0
+PASS d[2] is 0
+PASS d[3] is around 24
+PASS d[0] is 255
+PASS d[1] is 0
+PASS d[2] is 0
+PASS d[3] is around 24
+PASS d[0] is 255
+PASS d[1] is 0
+PASS d[2] is 0
+PASS d[3] is around 24
+PASS successfullyParsed is true
+
+TEST COMPLETE
+
diff --git a/LayoutTests/fast/canvas/canvas-scale-fillPath-shadow.html b/LayoutTests/fast/canvas/canvas-scale-fillPath-shadow.html
new file mode 100644
index 0000000..3c94725
--- /dev/null
+++ b/LayoutTests/fast/canvas/canvas-scale-fillPath-shadow.html
@@ -0,0 +1,13 @@
+<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
+<html>
+<head>
+<link rel="stylesheet" href="../js/resources/js-test-style.css">
+<script src="../js/resources/js-test-pre.js"></script>
+</head>
+<body>
+<p id="description"></p>
+<div id="console"></div>
+<script src="script-tests/canvas-scale-fillPath-shadow.js"></script>
+<script src="../js/resources/js-test-post.js"></script>
+</body>
+</html>
diff --git a/LayoutTests/fast/canvas/script-tests/canvas-scale-fillPath-shadow.js b/LayoutTests/fast/canvas/script-tests/canvas-scale-fillPath-shadow.js
new file mode 100644
index 0000000..05286f5
--- /dev/null
+++ b/LayoutTests/fast/canvas/script-tests/canvas-scale-fillPath-shadow.js
@@ -0,0 +1,151 @@
+description("Ensure correct behavior of canvas with path fill + shadow after scaling. A blue and red checkered pattern should be displayed.");
+
+function print(message, color)
+{
+ var paragraph = document.createElement("div");
+ paragraph.appendChild(document.createTextNode(message));
+ paragraph.style.fontFamily = "monospace";
+ if (color)
+ paragraph.style.color = color;
+ document.getElementById("console").appendChild(paragraph);
+}
+
+function shouldBeAround(a, b)
+{
+ var evalA;
+ try {
+ evalA = eval(a);
+ } catch(e) {
+ evalA = e;
+ }
+
+ if (Math.abs(evalA - b) < 10)
+ print("PASS " + a + " is around " + b , "green")
+ else
+ print("FAIL " + a + " is not around " + b + " (actual: " + evalA + ")", "red");
+}
+
+var canvas = document.createElement('canvas');
+document.body.appendChild(canvas);
+canvas.setAttribute('width', '1000');
+canvas.setAttribute('height', '1000');
+var ctx = canvas.getContext('2d');
+
+ctx.scale(2, 2);
+ctx.shadowOffsetX = 100;
+ctx.shadowOffsetY = 100;
+ctx.fillStyle = 'rgba(0, 0, 255, 1)';
+//ctx.lineWidth = 30;
+
+ctx.shadowColor = 'rgba(255, 0, 0, 1.0)';
+ctx.beginPath();
+ctx.moveTo(50, 50);
+ctx.lineTo(100, 50);
+ctx.lineTo(100, 100);
+ctx.lineTo(50, 100);
+ctx.fill();
+
+ctx.shadowColor = 'rgba(255, 0, 0, 0.3)';
+ctx.beginPath();
+ctx.moveTo(50, 150);
+ctx.lineTo(100, 150);
+ctx.lineTo(100, 200);
+ctx.lineTo(50, 200);
+ctx.fill();
+
+ctx.shadowColor = 'rgba(255, 0, 0, 1.0)';
+ctx.shadowBlur = 10;
+ctx.beginPath();
+ctx.moveTo(150, 50);
+ctx.lineTo(200, 50);
+ctx.lineTo(200, 100);
+ctx.lineTo(150, 100);
+ctx.fill();
+
+ctx.shadowColor = 'rgba(255, 0, 0, 0.3)';
+ctx.beginPath();
+ctx.moveTo(150, 150);
+ctx.lineTo(200, 150);
+ctx.lineTo(200, 200);
+ctx.lineTo(150, 200);
+ctx.fill();
+
+var d; // imageData.data
+
+// Verify solid shadow.
+d = ctx.getImageData(200, 205, 1, 1).data;
+shouldBe('d[0]', '255');
+shouldBe('d[1]', '0');
+shouldBe('d[2]', '0');
+shouldBe('d[3]', '255');
+
+d = ctx.getImageData(299, 295, 1, 1).data;
+shouldBe('d[0]', '255');
+shouldBe('d[1]', '0');
+shouldBe('d[2]', '0');
+shouldBe('d[3]', '255');
+
+d = ctx.getImageData(200, 299, 1, 1).data;
+shouldBe('d[0]', '255');
+shouldBe('d[1]', '0');
+shouldBe('d[2]', '0');
+shouldBe('d[3]', '255');
+
+// Verify solid alpha shadow.
+d = ctx.getImageData(200, 405, 1, 1).data;
+shouldBe('d[0]', '255');
+shouldBe('d[1]', '0');
+shouldBe('d[2]', '0');
+shouldBeAround('d[3]', '76');
+
+d = ctx.getImageData(299, 405, 1, 1).data;
+shouldBe('d[0]', '255');
+shouldBe('d[1]', '0');
+shouldBe('d[2]', '0');
+shouldBeAround('d[3]', '76');
+
+d = ctx.getImageData(205, 499, 1, 1).data;
+shouldBe('d[0]', '255');
+shouldBe('d[1]', '0');
+shouldBe('d[2]', '0');
+shouldBeAround('d[3]', '76');
+
+// Verify blurry shadow.
+d = ctx.getImageData(398, 205, 1, 1).data;
+shouldBe('d[0]', '255');
+shouldBe('d[1]', '0');
+shouldBe('d[2]', '0');
+shouldBeAround('d[3]', '83');
+
+d = ctx.getImageData(501, 205, 1, 1).data;
+shouldBe('d[0]', '255');
+shouldBe('d[1]', '0');
+shouldBe('d[2]', '0');
+shouldBeAround('d[3]', '83');
+
+d = ctx.getImageData(500, 300, 1, 1).data;
+shouldBe('d[0]', '255');
+shouldBe('d[1]', '0');
+shouldBe('d[2]', '0');
+shouldBeAround('d[3]', '53');
+
+// Verify blurry alpha shadow.
+d = ctx.getImageData(398, 405, 1, 1).data;
+shouldBe('d[0]', '255');
+shouldBe('d[1]', '0');
+shouldBe('d[2]', '0');
+shouldBeAround('d[3]', '24');
+
+d = ctx.getImageData(405, 501, 1, 1).data;
+shouldBe('d[0]', '255');
+shouldBe('d[1]', '0');
+shouldBe('d[2]', '0');
+shouldBeAround('d[3]', '24');
+
+d = ctx.getImageData(405, 501, 1, 1).data;
+shouldBe('d[0]', '255');
+shouldBe('d[1]', '0');
+shouldBe('d[2]', '0');
+shouldBeAround('d[3]', '24');
+
+var successfullyParsed = true;
diff --git a/WebCore/ChangeLog b/WebCore/ChangeLog
index a57b566..34f0783 100644
--- a/WebCore/ChangeLog
+++ b/WebCore/ChangeLog
@@ -1,3 +1,19 @@
+2010-11-30 Helder Correia <helder at sencha.com>
+
+ Reviewed by Kenneth Rohde Christiansen.
+
+ [Qt] Path filling should keep shadow offset after context scaling
+ https://bugs.webkit.org/show_bug.cgi?id=50194
+
+ Handle the special case when scaling is used and translate the shadow
+ offset accordingly. The correct behavior is ensured in ContextShadow
+ already, the issue only happens when using a non-blur shadow.
+
+ Test: fast/canvas/canvas-scale-fillPath-shadow.html
+
+ * platform/graphics/qt/GraphicsContextQt.cpp:
+ (WebCore::GraphicsContext::fillPath):
+
2010-11-30 Yury Semikhatsky <yurys at chromium.org>
Reviewed by Pavel Feldman.
diff --git a/WebCore/platform/graphics/qt/GraphicsContextQt.cpp b/WebCore/platform/graphics/qt/GraphicsContextQt.cpp
index b399f4e..de6892e 100644
--- a/WebCore/platform/graphics/qt/GraphicsContextQt.cpp
+++ b/WebCore/platform/graphics/qt/GraphicsContextQt.cpp
@@ -528,9 +528,21 @@ void GraphicsContext::fillPath()
if (shadow->m_type != ContextShadow::BlurShadow
&& !m_common->state.fillPattern && !m_common->state.fillGradient)
{
- p->translate(m_data->shadow.offset());
- p->fillPath(path, QColor(m_data->shadow.m_color));
- p->translate(-m_data->shadow.offset());
+ QPointF offset = shadow->offset();
+ const QTransform transform = p->transform();
+ if (transform.isScaling()) {
+ // If scaling is required, find the new coord for shadow origin,
+ // so that the relative offset to its shape is kept.
+ QPointF translatedOffset(offset.x() / transform.m11(),
+ offset.y() / transform.m22());
+ path.translate(translatedOffset);
+ p->fillPath(path, QColor(shadow->m_color));
+ path.translate(-translatedOffset);
+ } else {
+ p->translate(offset);
+ p->fillPath(path, QColor(shadow->m_color));
+ p->translate(-offset);
+ }
} else {
QPainter* shadowPainter = shadow->beginShadowLayer(p, path.controlPointRect());
if (shadowPainter) {
--
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