Title: [198574] trunk
Revision
198574
Author
[email protected]
Date
2016-03-22 20:28:09 -0700 (Tue, 22 Mar 2016)

Log Message

userSpaceOnUse patterns are not stroked for empty object bounding box elements
https://bugs.webkit.org/show_bug.cgi?id=109758

Patch by Said Abou-Hallawa <[email protected]> on 2016-03-22
Reviewed by Brent Fulgham.
Source/WebCore:

Checking whether the patternUnits is objectBoundingBox needs to be done
after calling collectPatternAttributes(). Otherwise the default value
will be always checked which is 'objectBoundingBox'.

Tests: svg/custom/pattern-units-fill-stroke.svg

* rendering/svg/RenderSVGResourcePattern.cpp:
(WebCore::RenderSVGResourcePattern::buildPattern):
(WebCore::RenderSVGResourcePattern::applyResource):

LayoutTests:

Ensure the SVG pattern is drawn correctly if it is used as a stroke for
empty objectBoundingBox elements.

* svg/custom/pattern-units-fill-stroke-expected.svg: Added.
* svg/custom/pattern-units-fill-stroke.svg: Added.

Modified Paths

Added Paths

Diff

Modified: trunk/LayoutTests/ChangeLog (198573 => 198574)


--- trunk/LayoutTests/ChangeLog	2016-03-23 02:30:57 UTC (rev 198573)
+++ trunk/LayoutTests/ChangeLog	2016-03-23 03:28:09 UTC (rev 198574)
@@ -1,3 +1,16 @@
+2016-03-22  Said Abou-Hallawa  <[email protected]>
+
+        userSpaceOnUse patterns are not stroked for empty object bounding box elements
+        https://bugs.webkit.org/show_bug.cgi?id=109758
+
+        Reviewed by Brent Fulgham.
+        
+        Ensure the SVG pattern is drawn correctly if it is used as a stroke for
+        empty objectBoundingBox elements.
+
+        * svg/custom/pattern-units-fill-stroke-expected.svg: Added.
+        * svg/custom/pattern-units-fill-stroke.svg: Added.
+
 2016-03-22  Myles C. Maxfield  <[email protected]>
 
         Post-review test update after r198560

Added: trunk/LayoutTests/svg/custom/pattern-units-fill-stroke-expected.svg (0 => 198574)


--- trunk/LayoutTests/svg/custom/pattern-units-fill-stroke-expected.svg	                        (rev 0)
+++ trunk/LayoutTests/svg/custom/pattern-units-fill-stroke-expected.svg	2016-03-23 03:28:09 UTC (rev 198574)
@@ -0,0 +1,18 @@
+<svg width='400' height='400' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' >
+    <g id='symbol-16'>
+        <g id='symbol-4'>
+            <g id='symbol-1'>
+                <rect width='50' height='50' fill='skyblue'/>
+                <rect x='5' y='5' width='40' height='40' fill='green'/>
+            </g>
+            <use xlink:href='' transform='translate(50, 0)'/>
+            <use xlink:href='' transform='translate(100, 0)'/>
+            <use xlink:href='' transform='translate(150, 0)'/>
+        </g>
+        <use xlink:href='' transform='translate(0, 50)'/>
+        <use xlink:href='' transform='translate(0, 100)'/>
+        <use xlink:href='' transform='translate(0, 150)'/>
+    </g>
+    <use xlink:href='' transform='translate(200, 0)'/>
+    <use xlink:href='' transform='translate(0, 200)'/>
+</svg>

Added: trunk/LayoutTests/svg/custom/pattern-units-fill-stroke.svg (0 => 198574)


--- trunk/LayoutTests/svg/custom/pattern-units-fill-stroke.svg	                        (rev 0)
+++ trunk/LayoutTests/svg/custom/pattern-units-fill-stroke.svg	2016-03-23 03:28:09 UTC (rev 198574)
@@ -0,0 +1,19 @@
+<svg width='400' height='400' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' >
+    <defs>
+        <symbol id="symbol-1">
+            <rect width='50' height='50' fill='skyblue'/>
+            <rect x='5' y='5' width='40' height='40' fill='green'/>
+        </symbol>
+        <pattern id='pattern-1' width='50' height='50' patternUnits='userSpaceOnUse'>
+            <use width='50' height='50' xlink:href='' />
+        </pattern>
+        <pattern id='pattern-2' x='0' y='0' width='0.25' height='0.25' patternUnits='objectBoundingBox'>
+            <use width='50' height='50' xlink:href='' />
+        </pattern>
+    </defs>
+    <rect x='0' y='0' width='200' height='200' fill='url(#pattern-1)'/>
+    <line x1='200' y1='100' x2='400' y2='100' stroke-width='200' stroke='url(#pattern-1)'/>
+    <rect x='0' y='200' width='200' height='200' fill='url(#pattern-2)'/>
+    <!-- This line won't be drawn since pattern-2 has 'objectBoundingBox' and the line box is empty -->
+    <line x1='200' y1='300' x2='400' y2='300' stroke-width='200' stroke='url(#pattern-2)'/>
+</svg>

Modified: trunk/Source/WebCore/ChangeLog (198573 => 198574)


--- trunk/Source/WebCore/ChangeLog	2016-03-23 02:30:57 UTC (rev 198573)
+++ trunk/Source/WebCore/ChangeLog	2016-03-23 03:28:09 UTC (rev 198574)
@@ -1,3 +1,20 @@
+2016-03-22  Said Abou-Hallawa  <[email protected]>
+
+        userSpaceOnUse patterns are not stroked for empty object bounding box elements
+        https://bugs.webkit.org/show_bug.cgi?id=109758
+
+        Reviewed by Brent Fulgham.
+
+        Checking whether the patternUnits is objectBoundingBox needs to be done
+        after calling collectPatternAttributes(). Otherwise the default value
+        will be always checked which is 'objectBoundingBox'.
+
+        Tests: svg/custom/pattern-units-fill-stroke.svg
+
+        * rendering/svg/RenderSVGResourcePattern.cpp:
+        (WebCore::RenderSVGResourcePattern::buildPattern):
+        (WebCore::RenderSVGResourcePattern::applyResource):
+
 2016-03-22  Myles C. Maxfield  <[email protected]>
 
         Use references instead of pointers for absolute positioning code

Modified: trunk/Source/WebCore/rendering/svg/RenderSVGResourcePattern.cpp (198573 => 198574)


--- trunk/Source/WebCore/rendering/svg/RenderSVGResourcePattern.cpp	2016-03-23 02:30:57 UTC (rev 198573)
+++ trunk/Source/WebCore/rendering/svg/RenderSVGResourcePattern.cpp	2016-03-23 03:28:09 UTC (rev 198574)
@@ -71,18 +71,12 @@
 
 PatternData* RenderSVGResourcePattern::buildPattern(RenderElement& renderer, unsigned short resourceMode, GraphicsContext& context)
 {
+    ASSERT(!m_shouldCollectPatternAttributes);
+
     PatternData* currentData = m_patternMap.get(&renderer);
     if (currentData && currentData->pattern)
         return currentData;
 
-    if (m_shouldCollectPatternAttributes) {
-        patternElement().synchronizeAnimatedSVGAttribute(anyQName());
-
-        m_attributes = PatternAttributes();
-        collectPatternAttributes(m_attributes);
-        m_shouldCollectPatternAttributes = false;
-    }
-
     // If we couldn't determine the pattern content element root, stop here.
     if (!m_attributes.patternContentElement())
         return nullptr;
@@ -151,6 +145,14 @@
     ASSERT(context);
     ASSERT(resourceMode != ApplyToDefaultMode);
 
+    if (m_shouldCollectPatternAttributes) {
+        patternElement().synchronizeAnimatedSVGAttribute(anyQName());
+
+        m_attributes = PatternAttributes();
+        collectPatternAttributes(m_attributes);
+        m_shouldCollectPatternAttributes = false;
+    }
+    
     // Spec: When the geometry of the applicable element has no width or height and objectBoundingBox is specified,
     // then the given effect (e.g. a gradient or a filter) will be ignored.
     FloatRect objectBoundingBox = renderer.objectBoundingBox();
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