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+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <basegfx/point/b2ipoint.hxx>
+#include <basegfx/vector/b2isize.hxx>
+
+namespace canvas
+{
+ /**
+ * This implements some equivalent to basegfx::B2IBox, but instead of two
+ * BasicBox ranges, it uses a position and a size. maPos and maSize could
+ * be replaced by:
+ * - B2IPoint(getMinX(), getMinY()) and
+ * - B2ISize(getMaxX()-getMinX(), getMaxY()-getMinY())
+ *
+ * The current allocation algorithm uses size and pos a lot. Not sure how
+ * time-critical any of this code is and if that would be a problem.
+ */
+ struct SurfaceRect
+ {
+ ::basegfx::B2IPoint maPos;
+ ::basegfx::B2ISize maSize;
+
+ explicit SurfaceRect( const ::basegfx::B2ISize &rSize ) :
+ maPos(),
+ maSize(rSize)
+ {
+ }
+
+ bool pointInside( sal_Int32 px, sal_Int32 py ) const
+ {
+ const sal_Int32 x1(maPos.getX());
+ const sal_Int32 y1(maPos.getY());
+ const sal_Int32 x2(x1 + maSize.getWidth());
+ const sal_Int32 y2(y1 + maSize.getHeight());
+ if(px < x1) return false;
+ if(px >= x2) return false;
+ if(py < y1) return false;
+ if(py >= y2) return false;
+ return true;
+ }
+
+ /// returns true if the passed rect intersects this one.
+ bool intersection( const SurfaceRect& r ) const
+ {
+ const sal_Int32 x1(maPos.getX());
+ const sal_Int32 y1(maPos.getY());
+ const sal_Int32 x1w(x1 + maSize.getWidth() - 1);
+ const sal_Int32 y1h(y1 + maSize.getHeight() - 1);
+
+ const sal_Int32 x2(r.maPos.getX());
+ const sal_Int32 y2(r.maPos.getY());
+ const sal_Int32 x2w(x2 + r.maSize.getWidth() - 1);
+ const sal_Int32 y2h(y2 + r.maSize.getHeight() - 1);
+
+ return !((x1w < x2) || (x2w < x1) || (y1h < y2) || (y2h < y1));
+ }
+
+ bool inside( const SurfaceRect& r ) const
+ {
+ const sal_Int32 x1(maPos.getX());
+ const sal_Int32 y1(maPos.getY());
+ const sal_Int32 x2(x1 + maSize.getWidth() - 1);
+ const sal_Int32 y2(y1 + maSize.getHeight() - 1);
+ if(!(r.pointInside(x1,y1))) return false;
+ if(!(r.pointInside(x2,y2))) return false;
+ return true;
+ }
+ };
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */