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-rw-r--r--Source/WebCore/mathml/RenderMathMLSquareRoot.cpp197
1 files changed, 0 insertions, 197 deletions
diff --git a/Source/WebCore/mathml/RenderMathMLSquareRoot.cpp b/Source/WebCore/mathml/RenderMathMLSquareRoot.cpp
deleted file mode 100644
index 1285acd..0000000
--- a/Source/WebCore/mathml/RenderMathMLSquareRoot.cpp
+++ /dev/null
@@ -1,197 +0,0 @@
-/*
- * Copyright (C) 2009 Alex Milowski (alex@milowski.com). All rights reserved.
- * Copyright (C) 2010 François Sausset (sausset@gmail.com). 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "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 THE COPYRIGHT
- * OWNER 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 ENABLE(MATHML)
-
-#include "RenderMathMLSquareRoot.h"
-
-#include "GraphicsContext.h"
-#include "MathMLNames.h"
-#include "Path.h"
-
-namespace WebCore {
-
-using namespace MathMLNames;
-
-// Bottom padding of the radical (px)
-const int gRadicalBasePad = 3;
-// Threshold above which the radical shape is modified to look nice with big bases (%)
-const float gThresholdBaseHeight = 1.5f;
-// Radical width (%)
-const float gRadicalWidth = 0.75f;
-// Horizontal position of the bottom point of the radical (%)
-const float gRadicalBottomPointXPos= 0.5f;
-// Horizontal position of the top left point of the radical (%)
-const float gRadicalTopLeftPointXPos = 0.2f;
-// Vertical position of the top left point of the radical (%)
-const float gRadicalTopLeftPointYPos = 0.5f;
-// Vertical shift of the left end point of the radical (%)
-const float gRadicalLeftEndYShift = 0.05f;
-// Additional bottom root padding (%)
-const float gRootBottomPadding = 0.2f;
-
-// Radical line thickness (%)
-const float gRadicalLineThickness = 0.02f;
-// Radical thick line thickness (%)
-const float gRadicalThickLineThickness = 0.1f;
-
-RenderMathMLSquareRoot::RenderMathMLSquareRoot(Node *expression)
- : RenderMathMLBlock(expression)
-{
-}
-
-void RenderMathMLSquareRoot::paint(PaintInfo& info, int tx, int ty)
-{
- RenderMathMLBlock::paint(info, tx, ty);
-
- if (info.context->paintingDisabled())
- return;
-
- tx += x();
- ty += y();
-
- int maxHeight = 0;
- int width = 0;
- RenderObject* current = firstChild();
- while (current) {
- if (current->isBoxModelObject()) {
-
- RenderBoxModelObject* box = toRenderBoxModelObject(current);
-
- // Check to see if this box has a larger height
- if (box->offsetHeight() > maxHeight)
- maxHeight = box->offsetHeight();
- width += box->offsetWidth();
- }
- current = current->nextSibling();
- }
- // default to the font size in pixels if we're empty
- if (!maxHeight)
- maxHeight = style()->fontSize();
-
- int frontWidth = static_cast<int>(style()->fontSize() * gRadicalWidth);
- int topStartShift = 0;
- // Base height above which the shape of the root changes
- int thresholdHeight = static_cast<int>(gThresholdBaseHeight * style()->fontSize());
-
- if (maxHeight > thresholdHeight && thresholdHeight) {
- float shift = (maxHeight - thresholdHeight) / static_cast<float>(thresholdHeight);
- if (shift > 1.)
- shift = 1.0f;
- topStartShift = static_cast<int>(gRadicalBottomPointXPos * frontWidth * shift);
- }
-
- width += topStartShift;
-
- FloatPoint topStart(tx + frontWidth - topStartShift, ty);
- FloatPoint bottomLeft(tx + frontWidth * gRadicalBottomPointXPos , ty + maxHeight + gRadicalBasePad);
- FloatPoint topLeft(tx + frontWidth * gRadicalTopLeftPointXPos , ty + gRadicalTopLeftPointYPos * maxHeight);
- FloatPoint leftEnd(tx , topLeft.y() + gRadicalLeftEndYShift * style()->fontSize());
-
- info.context->save();
-
- info.context->setStrokeThickness(gRadicalLineThickness * style()->fontSize());
- info.context->setStrokeStyle(SolidStroke);
- info.context->setStrokeColor(style()->visitedDependentColor(CSSPropertyColor), ColorSpaceDeviceRGB);
- info.context->setLineJoin(MiterJoin);
- info.context->setMiterLimit(style()->fontSize());
-
- Path root;
-
- root.moveTo(FloatPoint(topStart.x() + width , ty));
- // draw top
- root.addLineTo(topStart);
- // draw from top left corner to bottom point of radical
- root.addLineTo(bottomLeft);
- // draw from bottom point to top of left part of radical base "pocket"
- root.addLineTo(topLeft);
- // draw to end
- root.addLineTo(leftEnd);
-
- info.context->strokePath(root);
-
- info.context->save();
-
- // Build a mask to draw the thick part of the root.
- Path mask;
-
- mask.moveTo(topStart);
- mask.addLineTo(bottomLeft);
- mask.addLineTo(topLeft);
- mask.addLineTo(FloatPoint(2 * topLeft.x() - leftEnd.x(), 2 * topLeft.y() - leftEnd.y()));
-
- info.context->clip(mask);
-
- // Draw the thick part of the root.
- info.context->setStrokeThickness(gRadicalThickLineThickness * style()->fontSize());
- info.context->setLineCap(SquareCap);
-
- Path line;
- line.moveTo(bottomLeft);
- line.addLineTo(topLeft);
-
- info.context->strokePath(line);
-
- info.context->restore();
-
- info.context->restore();
-}
-
-void RenderMathMLSquareRoot::layout()
-{
- int maxHeight = 0;
-
- RenderObject* current = firstChild();
- while (current) {
- if (current->isBoxModelObject()) {
- RenderBoxModelObject* box = toRenderBoxModelObject(current);
-
- if (box->offsetHeight() > maxHeight)
- maxHeight = box->offsetHeight();
-
- box->style()->setVerticalAlign(BASELINE);
- }
- current = current->nextSibling();
- }
-
- if (!maxHeight)
- maxHeight = style()->fontSize();
-
-
- if (maxHeight > static_cast<int>(gThresholdBaseHeight * style()->fontSize()))
- style()->setPaddingBottom(Length(static_cast<int>(gRootBottomPadding * style()->fontSize()), Fixed));
-
-
- RenderBlock::layout();
-}
-
-}
-
-#endif // ENABLE(MATHML)
-
-
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