summaryrefslogtreecommitdiffstats
path: root/Source/WebCore/platform/graphics/FloatPoint.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'Source/WebCore/platform/graphics/FloatPoint.cpp')
-rw-r--r--Source/WebCore/platform/graphics/FloatPoint.cpp75
1 files changed, 75 insertions, 0 deletions
diff --git a/Source/WebCore/platform/graphics/FloatPoint.cpp b/Source/WebCore/platform/graphics/FloatPoint.cpp
new file mode 100644
index 0000000..7e85b52
--- /dev/null
+++ b/Source/WebCore/platform/graphics/FloatPoint.cpp
@@ -0,0 +1,75 @@
+/*
+ * Copyright (C) 2004, 2006, 2007 Apple Inc. All rights reserved.
+ * Copyright (C) 2005 Nokia. 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 APPLE COMPUTER, INC. ``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 APPLE COMPUTER, INC. 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"
+#include "FloatPoint.h"
+
+#include "TransformationMatrix.h"
+#include "FloatConversion.h"
+#include "IntPoint.h"
+#include <math.h>
+
+namespace WebCore {
+
+FloatPoint::FloatPoint(const IntPoint& p) : m_x(p.x()), m_y(p.y())
+{
+}
+
+void FloatPoint::normalize()
+{
+ float tempLength = length();
+
+ if (tempLength) {
+ m_x /= tempLength;
+ m_y /= tempLength;
+ }
+}
+
+float FloatPoint::length() const
+{
+ return sqrtf(lengthSquared());
+}
+
+FloatPoint FloatPoint::matrixTransform(const AffineTransform& transform) const
+{
+ double newX, newY;
+ transform.map(static_cast<double>(m_x), static_cast<double>(m_y), newX, newY);
+ return narrowPrecision(newX, newY);
+}
+
+FloatPoint FloatPoint::matrixTransform(const TransformationMatrix& transform) const
+{
+ double newX, newY;
+ transform.map(static_cast<double>(m_x), static_cast<double>(m_y), newX, newY);
+ return narrowPrecision(newX, newY);
+}
+
+FloatPoint FloatPoint::narrowPrecision(double x, double y)
+{
+ return FloatPoint(narrowPrecisionToFloat(x), narrowPrecisionToFloat(y));
+}
+
+}