1 files changed, 117 insertions, 0 deletions
diff --git a/slideshow/source/engine/transitions/figurewipe.cxx b/slideshow/source/engine/transitions/figurewipe.cxx
new file mode 100644
index 000000000..f64145d55
--- /dev/null
+++ b/slideshow/source/engine/transitions/figurewipe.cxx
@@ -0,0 +1,117 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+
+#include <basegfx/numeric/ftools.hxx>
+#include <basegfx/matrix/b2dhommatrix.hxx>
+#include <basegfx/point/b2dpoint.hxx>
+#include <basegfx/matrix/b2dhommatrixtools.hxx>
+#include "figurewipe.hxx"
+
+
+namespace slideshow::internal {
+
+::basegfx::B2DPolyPolygon FigureWipe::operator () ( double t )
+{
+    ::basegfx::B2DPolyPolygon res(m_figure);
+    res.transform(basegfx::utils::createScaleTranslateB2DHomMatrix(t, t, 0.5, 0.5));
+    return res;
+}
+
+std::shared_ptr<FigureWipe> FigureWipe::createTriangleWipe()
+{
+    const double s60 = sin( basegfx::deg2rad(60.0) );
+    const double s30 = sin( basegfx::deg2rad(30.0) );
+    ::basegfx::B2DPolygon figure;
+    figure.append( ::basegfx::B2DPoint( 0.5 + s30, 0.5 ) );
+    figure.append( ::basegfx::B2DPoint( 0.0, -0.5 - s60 ) );
+    figure.append( ::basegfx::B2DPoint( -0.5 - s30, 0.5 ) );
+    figure.setClosed(true);
+    return std::make_shared<FigureWipe>(figure);
+}
+
+std::shared_ptr<FigureWipe> FigureWipe::createArrowHeadWipe()
+{
+    const double s60 = sin( basegfx::deg2rad(60.0) );
+    const double s30 = sin( basegfx::deg2rad(30.0) );
+    const double off = s30;
+    ::basegfx::B2DPolygon figure;
+    figure.append( ::basegfx::B2DPoint( 0.5 + s30 + off, 0.5 + off ) );
+    figure.append( ::basegfx::B2DPoint( 0.0, -0.5 - s60 ) );
+    figure.append( ::basegfx::B2DPoint( -0.5 - s30 - off, 0.5 + off ) );
+    figure.append( ::basegfx::B2DPoint( 0.0, 0.5 ) );
+    figure.setClosed(true);
+    return std::make_shared<FigureWipe>(figure);
+}
+
+std::shared_ptr<FigureWipe> FigureWipe::createPentagonWipe()
+{
+    const double s = sin( basegfx::deg2rad(18.0) );
+    const double c = cos( basegfx::deg2rad(18.0) );
+    ::basegfx::B2DPolygon figure;
+    figure.append( ::basegfx::B2DPoint( 0.5, 0.5 ) );
+    figure.append( ::basegfx::B2DPoint( 0.5 + s, 0.5 - c ) );
+    figure.append( ::basegfx::B2DPoint( 0.0, 0.5 - c - sin(basegfx::deg2rad(36.0)) ) );
+    figure.append( ::basegfx::B2DPoint( -0.5 - s, 0.5 - c ) );
+    figure.append( ::basegfx::B2DPoint( -0.5, 0.5 ) );
+    figure.setClosed(true);
+    return std::make_shared<FigureWipe>(figure);
+}
+
+std::shared_ptr<FigureWipe> FigureWipe::createHexagonWipe()
+{
+    const double s = sin( basegfx::deg2rad(30.0) );
+    const double c = cos( basegfx::deg2rad(30.0) );
+    ::basegfx::B2DPolygon figure;
+    figure.append( ::basegfx::B2DPoint( 0.5, c ) );
+    figure.append( ::basegfx::B2DPoint( 0.5 + s, 0.0 ) );
+    figure.append( ::basegfx::B2DPoint( 0.5, -c ) );
+    figure.append( ::basegfx::B2DPoint( -0.5, -c ) );
+    figure.append( ::basegfx::B2DPoint( -0.5 - s, 0.0 ) );
+    figure.append( ::basegfx::B2DPoint( -0.5, c ) );
+    figure.setClosed(true);
+    return std::make_shared<FigureWipe>(figure);
+}
+
+std::shared_ptr<FigureWipe> FigureWipe::createStarWipe( sal_Int32 nPoints )
+{
+    const double v = M_PI / nPoints;
+    const ::basegfx::B2DPoint p_( 0.0, -M_SQRT2 );
+    ::basegfx::B2DPolygon figure;
+    for ( sal_Int32 pos = 0; pos < nPoints; ++pos ) {
+        const double w = pos * 2.0 * M_PI / nPoints;
+        ::basegfx::B2DHomMatrix aTransform;
+        ::basegfx::B2DPoint p(p_);
+        aTransform.rotate( -w );
+        p *= aTransform;
+        figure.append(p);
+        p = p_;
+        aTransform.identity();
+        aTransform.scale( 0.5, 0.5 );
+        aTransform.rotate( -w - v );
+        p *= aTransform;
+        figure.append(p);
+    }
+    figure.setClosed(true);
+    return std::make_shared<FigureWipe>(figure);
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */