1 files changed, 216 insertions, 0 deletions
diff --git a/Source/WebCore/svg/SVGTextPositioningElement.cpp b/Source/WebCore/svg/SVGTextPositioningElement.cpp
new file mode 100644
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--- /dev/null
+++ b/Source/WebCore/svg/SVGTextPositioningElement.cpp
@@ -0,0 +1,216 @@
+/*
+ * Copyright (C) 2004, 2005, 2008 Nikolas Zimmermann <zimmermann@kde.org>
+ * Copyright (C) 2004, 2005, 2006, 2007, 2008 Rob Buis <buis@kde.org>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+
+#if ENABLE(SVG)
+#include "SVGTextPositioningElement.h"
+
+#include "Attribute.h"
+#include "RenderSVGResource.h"
+#include "RenderSVGText.h"
+#include "SVGLengthList.h"
+#include "SVGNames.h"
+#include "SVGNumberList.h"
+
+namespace WebCore {
+
+// Animated property definitions
+DEFINE_ANIMATED_LENGTH_LIST(SVGTextPositioningElement, SVGNames::xAttr, X, x)
+DEFINE_ANIMATED_LENGTH_LIST(SVGTextPositioningElement, SVGNames::yAttr, Y, y)
+DEFINE_ANIMATED_LENGTH_LIST(SVGTextPositioningElement, SVGNames::dxAttr, Dx, dx)
+DEFINE_ANIMATED_LENGTH_LIST(SVGTextPositioningElement, SVGNames::dyAttr, Dy, dy)
+DEFINE_ANIMATED_NUMBER_LIST(SVGTextPositioningElement, SVGNames::rotateAttr, Rotate, rotate)
+
+SVGTextPositioningElement::SVGTextPositioningElement(const QualifiedName& tagName, Document* document)
+    : SVGTextContentElement(tagName, document)
+{
+}
+
+void SVGTextPositioningElement::parseMappedAttribute(Attribute* attr)
+{
+    if (attr->name() == SVGNames::xAttr) {
+        SVGLengthList newList;
+        newList.parse(attr->value(), LengthModeWidth);
+        detachAnimatedXListWrappers(newList.size());
+        setXBaseValue(newList);
+    } else if (attr->name() == SVGNames::yAttr) {
+        SVGLengthList newList;
+        newList.parse(attr->value(), LengthModeHeight);
+        detachAnimatedYListWrappers(newList.size());
+        setYBaseValue(newList);
+    } else if (attr->name() == SVGNames::dxAttr) {
+        SVGLengthList newList;
+        newList.parse(attr->value(), LengthModeWidth);
+        detachAnimatedDxListWrappers(newList.size());
+        setDxBaseValue(newList);
+    } else if (attr->name() == SVGNames::dyAttr) {
+        SVGLengthList newList;
+        newList.parse(attr->value(), LengthModeHeight);
+        detachAnimatedDyListWrappers(newList.size());
+        setDyBaseValue(newList);
+    } else if (attr->name() == SVGNames::rotateAttr) {
+        SVGNumberList newList;
+        newList.parse(attr->value());
+        detachAnimatedRotateListWrappers(newList.size());
+        setRotateBaseValue(newList);
+    } else
+        SVGTextContentElement::parseMappedAttribute(attr);
+}
+
+static inline void updatePositioningValuesInRenderer(RenderObject* renderer)
+{
+    RenderSVGText* textRenderer = 0;
+
+    if (renderer->isSVGText())
+        textRenderer = toRenderSVGText(renderer);
+    else {
+        // Locate RenderSVGText parent renderer.
+        RenderObject* parent = renderer->parent();
+        while (parent && !parent->isSVGText())
+            parent = parent->parent();
+
+        if (parent) {
+            ASSERT(parent->isSVGText());
+            textRenderer = toRenderSVGText(parent);
+        }
+    }
+
+    if (!textRenderer)
+        return;
+
+    textRenderer->setNeedsPositioningValuesUpdate();
+}
+
+void SVGTextPositioningElement::svgAttributeChanged(const QualifiedName& attrName)
+{
+    SVGTextContentElement::svgAttributeChanged(attrName);
+
+    bool updateRelativeLengths = attrName == SVGNames::xAttr
+                              || attrName == SVGNames::yAttr
+                              || attrName == SVGNames::dxAttr
+                              || attrName == SVGNames::dyAttr;
+
+    if (updateRelativeLengths)
+        updateRelativeLengthsInformation();
+
+    RenderObject* renderer = this->renderer();
+    if (!renderer)
+        return;
+
+    if (updateRelativeLengths || attrName == SVGNames::rotateAttr) {
+        updatePositioningValuesInRenderer(renderer);
+        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
+        return;
+    }
+
+    if (SVGTextContentElement::isKnownAttribute(attrName))
+        RenderSVGResource::markForLayoutAndParentResourceInvalidation(renderer);
+}
+
+void SVGTextPositioningElement::childrenChanged(bool changedByParser, Node* beforeChange, Node* afterChange, int childCountDelta)
+{
+    SVGTextContentElement::childrenChanged(changedByParser, beforeChange, afterChange, childCountDelta);
+
+    if (changedByParser)
+        return;
+
+    if (RenderObject* object = renderer())
+        updatePositioningValuesInRenderer(object);
+}
+
+void SVGTextPositioningElement::synchronizeProperty(const QualifiedName& attrName)
+{
+    SVGTextContentElement::synchronizeProperty(attrName);
+
+    if (attrName == anyQName()) {
+        synchronizeX();
+        synchronizeY();
+        synchronizeDx();
+        synchronizeDy();
+        synchronizeRotate();
+        return;
+    }
+
+    if (attrName == SVGNames::xAttr)
+        synchronizeX();
+    else if (attrName == SVGNames::yAttr)
+        synchronizeY();
+    else if (attrName == SVGNames::dxAttr)
+        synchronizeDx();
+    else if (attrName == SVGNames::dyAttr)
+        synchronizeDy();
+    else if (attrName == SVGNames::rotateAttr)
+        synchronizeRotate();
+}
+
+static inline bool listContainsRelativeValue(const SVGLengthList& list)
+{
+    unsigned size = list.size();
+    for (unsigned i = 0; i < size; ++i) {
+        const SVGLength& length = list.at(i);
+        if (length.isRelative())
+            return true;
+    }
+
+    return false;
+}
+
+bool SVGTextPositioningElement::selfHasRelativeLengths() const
+{
+    if (SVGTextContentElement::selfHasRelativeLengths())
+        return true;
+    if (listContainsRelativeValue(x()))
+        return true;
+    if (listContainsRelativeValue(y()))
+        return true;
+    if (listContainsRelativeValue(dx()))
+        return true;
+    if (listContainsRelativeValue(dy()))
+        return true;
+    return false;
+}
+
+SVGTextPositioningElement* SVGTextPositioningElement::elementFromRenderer(RenderObject* renderer)
+{
+    if (!renderer)
+        return 0;
+
+    if (!renderer->isSVGText() && !renderer->isSVGInline())
+        return 0;
+
+    Node* node = renderer->node();
+    ASSERT(node);
+    ASSERT(node->isSVGElement());
+
+    if (!node->hasTagName(SVGNames::textTag)
+        && !node->hasTagName(SVGNames::tspanTag)
+#if ENABLE(SVG_FONTS)
+        && !node->hasTagName(SVGNames::altGlyphTag)
+#endif
+        && !node->hasTagName(SVGNames::trefTag))
+        return 0;
+
+    return static_cast<SVGTextPositioningElement*>(node);
+}
+
+}
+
+#endif // ENABLE(SVG)