Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 190 insertions, 0 deletions

diff --git a/include/basegfx/range/b2ibox.hxx b/include/basegfx/range/b2ibox.hxx
new file mode 100644
index 000000000..2be733b93
--- /dev/null
+++ b/include/basegfx/range/b2ibox.hxx
@@ -0,0 +1,190 @@
+/* -*- 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 <ostream>
+
+#include <basegfx/tuple/b2ituple.hxx>
+#include <basegfx/range/basicbox.hxx>
+
+namespace basegfx
+{
+    /** A two-dimensional interval over integers
+
+        This is most easily depicted as a set of integers, bounded by
+        a lower and an upper value - but excluding the upper
+        value. All inbetween values are included in the set (see also
+        http://en.wikipedia.org/wiki/Interval_%28mathematics%29).
+
+        The set is half-open, i.e. the lower bound is included, the
+        upper bound not (if you're used to the notation - we're
+        talking about [a,b) here, compared to closed [a,b] or fully
+        open intervals (a,b)).
+
+        If you don't need a half-open interval, check B2IRange.
+
+        That means, isInside(val) will return true also for values of
+        val=a, but not for val=b.
+
+        Alternatively, consider this a rectangle, where the rightmost
+        pixel column and the bottommost pixel row are excluded - this
+        is much like polygon filling. As a result, filling a given
+        rectangle with basebmp::BitmapDevice::fillPolyPolygon(), will
+        affect exactly the same set of pixel as isInside() would
+        return true for.
+
+        @see B2IRange
+     */
+    class B2IBox
+    {
+    public:
+        typedef sal_Int32       ValueType;
+        typedef Int32Traits     TraitsType;
+
+        B2IBox() {}
+
+        /// Create degenerate interval that's still empty
+        explicit B2IBox(const B2ITuple& rTuple)
+        :   maRangeX(rTuple.getX()),
+            maRangeY(rTuple.getY())
+        {
+        }
+
+        /// Create proper interval between the two given points
+        B2IBox(sal_Int32 x1,
+               sal_Int32 y1,
+               sal_Int32 x2,
+               sal_Int32 y2) :
+            maRangeX(x1),
+            maRangeY(y1)
+        {
+            maRangeX.expand(x2);
+            maRangeY.expand(y2);
+        }
+
+        /// Create proper interval between the two given points
+        B2IBox(const B2ITuple& rTuple1,
+               const B2ITuple& rTuple2) :
+            maRangeX(rTuple1.getX()),
+            maRangeY(rTuple1.getY())
+        {
+            expand( rTuple2 );
+        }
+
+        /** Check if the interval set is empty
+
+            @return false, if no value is in this set - having a
+            single value included will still return false.
+         */
+        bool isEmpty() const
+        {
+            return maRangeX.isEmpty() || maRangeY.isEmpty();
+        }
+
+        bool operator==( const B2IBox& rBox ) const
+        {
+            return (maRangeX == rBox.maRangeX
+                && maRangeY == rBox.maRangeY);
+        }
+
+        bool operator!=( const B2IBox& rBox ) const
+        {
+            return (maRangeX != rBox.maRangeX
+                || maRangeY != rBox.maRangeY);
+        }
+
+        /// get lower bound of the set. returns arbitrary values for empty sets.
+        sal_Int32 getMinX() const
+        {
+            return maRangeX.getMinimum();
+        }
+
+        /// get lower bound of the set. returns arbitrary values for empty sets.
+        sal_Int32 getMinY() const
+        {
+            return maRangeY.getMinimum();
+        }
+
+        /// get upper bound of the set. returns arbitrary values for empty sets.
+        sal_Int32 getMaxX() const
+        {
+            return maRangeX.getMaximum();
+        }
+
+        /// get upper bound of the set. returns arbitrary values for empty sets.
+        sal_Int32 getMaxY() const
+        {
+            return maRangeY.getMaximum();
+        }
+
+        /// return difference between upper and lower X value. returns 0 for empty sets.
+        sal_Int64 getWidth() const
+        {
+            return maRangeX.getRange();
+        }
+
+        /// return difference between upper and lower Y value. returns 0 for empty sets.
+        sal_Int64 getHeight() const
+        {
+            return maRangeY.getRange();
+        }
+
+        /// yields true if point is contained in set
+        bool isInside(const B2ITuple& rTuple) const
+        {
+            return (
+                maRangeX.isInside(rTuple.getX())
+                && maRangeY.isInside(rTuple.getY())
+                );
+        }
+
+        /// add point to the set, expanding as necessary
+        void expand(const B2ITuple& rTuple)
+        {
+            maRangeX.expand(rTuple.getX());
+            maRangeY.expand(rTuple.getY());
+        }
+
+        /// calc set intersection
+        void intersect(const B2IBox& rBox)
+        {
+            maRangeX.intersect(rBox.maRangeX);
+            maRangeY.intersect(rBox.maRangeY);
+        }
+
+    private:
+        BasicBox        maRangeX;
+        BasicBox        maRangeY;
+    };
+
+} // end of namespace basegfx
+
+template< typename charT, typename traits >
+inline std::basic_ostream<charT, traits> & operator <<(
+    std::basic_ostream<charT, traits> & stream, const basegfx::B2IBox& box )
+{
+    if (box.isEmpty())
+        return stream << "EMPTY";
+    else
+        return stream << box.getWidth() << 'x' << box.getHeight()
+                      << "@(" << box.getMinX() << "," << box.getMinY() << ")";
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */