1 files changed, 283 insertions, 0 deletions
diff --git a/tools/source/generic/gen.cxx b/tools/source/generic/gen.cxx
new file mode 100644
index 000000000..7a275eea3
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+++ b/tools/source/generic/gen.cxx
@@ -0,0 +1,283 @@
+/* -*- 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 <sal/config.h>
+#include <sal/log.hxx>
+
+#include <algorithm>
+#include <cassert>
+#include <sstream>
+#include <o3tl/safeint.hxx>
+#include <tools/gen.hxx>
+#include <tools/stream.hxx>
+
+OString Pair::toString() const
+{
+    std::stringstream ss;
+    // Note that this is not just used for debugging output but the
+    // format is parsed by external code (passed in callbacks to
+    // LibreOfficeKit clients). So don't change.
+    ss << A() << ", " << B();
+    return ss.str().c_str();
+}
+
+tools::Rectangle tools::Rectangle::Justify( const Point& rLT, const Point& rRB )
+{
+    long nLeft   = std::min(rLT.X(), rRB.X());
+    long nTop    = std::min(rLT.Y(), rRB.Y());
+    long nRight  = std::max(rLT.X(), rRB.X());
+    long nBottom = std::max(rLT.Y(), rRB.Y());
+    return Rectangle( nLeft, nTop, nRight, nBottom );
+}
+
+void tools::Rectangle::SetSize( const Size& rSize )
+{
+    if ( rSize.Width() < 0 )
+        nRight  = nLeft + rSize.Width() +1;
+    else if ( rSize.Width() > 0 )
+        nRight  = nLeft + rSize.Width() -1;
+    else
+        nRight = RECT_EMPTY;
+
+    if ( rSize.Height() < 0 )
+        nBottom  = nTop + rSize.Height() +1;
+    else if ( rSize.Height() > 0 )
+        nBottom  = nTop + rSize.Height() -1;
+    else
+        nBottom = RECT_EMPTY;
+}
+
+void tools::Rectangle::SaturatingSetSize(const Size& rSize)
+{
+    if (rSize.Width() < 0)
+        nRight = o3tl::saturating_add(nLeft, (rSize.Width() + 1));
+    else if ( rSize.Width() > 0 )
+        nRight = o3tl::saturating_add(nLeft, (rSize.Width() - 1));
+    else
+        nRight = RECT_EMPTY;
+
+    if ( rSize.Height() < 0 )
+        nBottom = o3tl::saturating_add(nTop, (rSize.Height() + 1));
+    else if ( rSize.Height() > 0 )
+        nBottom = o3tl::saturating_add(nTop, (rSize.Height() - 1));
+    else
+        nBottom = RECT_EMPTY;
+}
+
+void tools::Rectangle::SaturatingSetX(long x)
+{
+    if (nRight != RECT_EMPTY)
+        nRight = o3tl::saturating_add(nRight, x - nLeft);
+    nLeft = x;
+}
+
+void tools::Rectangle::SaturatingSetY(long y)
+{
+    if (nBottom != RECT_EMPTY)
+        nBottom = o3tl::saturating_add(nBottom, y - nTop);
+    nTop = y;
+}
+
+tools::Rectangle& tools::Rectangle::Union( const tools::Rectangle& rRect )
+{
+    if ( rRect.IsEmpty() )
+        return *this;
+
+    if ( IsEmpty() )
+        *this = rRect;
+    else
+    {
+        nLeft  =  std::min( std::min( nLeft, rRect.nLeft ), std::min( nRight, rRect.nRight )   );
+        nRight  = std::max( std::max( nLeft, rRect.nLeft ), std::max( nRight, rRect.nRight )   );
+        nTop    = std::min( std::min( nTop, rRect.nTop ),   std::min( nBottom, rRect.nBottom ) );
+        nBottom = std::max( std::max( nTop, rRect.nTop ),   std::max( nBottom, rRect.nBottom ) );
+    }
+
+    return *this;
+}
+
+tools::Rectangle& tools::Rectangle::Intersection( const tools::Rectangle& rRect )
+{
+    if ( IsEmpty() )
+        return *this;
+    if ( rRect.IsEmpty() )
+    {
+        *this = tools::Rectangle();
+        return *this;
+    }
+
+    // Justify rectangle
+    tools::Rectangle aTmpRect( rRect );
+    Justify();
+    aTmpRect.Justify();
+
+    // Perform intersection
+    nLeft  = std::max( nLeft, aTmpRect.nLeft );
+    nRight = std::min( nRight, aTmpRect.nRight );
+    nTop   = std::max( nTop, aTmpRect.nTop );
+    nBottom= std::min( nBottom, aTmpRect.nBottom );
+
+    // Determine if intersection is empty
+    if ( nRight < nLeft || nBottom < nTop )
+        *this = tools::Rectangle();
+
+    return *this;
+}
+
+void tools::Rectangle::Justify()
+{
+    if ( (nRight < nLeft) && (nRight != RECT_EMPTY) )
+    {
+        std::swap(nLeft, nRight);
+    }
+
+    if ( (nBottom < nTop) && (nBottom != RECT_EMPTY) )
+    {
+        std::swap(nBottom, nTop);
+    }
+}
+
+bool tools::Rectangle::IsInside( const Point& rPoint ) const
+{
+    if ( IsEmpty() )
+        return false;
+
+    if ( nLeft <= nRight )
+    {
+        if ( (rPoint.X() < nLeft) || (rPoint.X() > nRight) )
+            return false;
+    }
+    else
+    {
+        if ( (rPoint.X() > nLeft) || (rPoint.X() < nRight) )
+            return false;
+    }
+    if ( nTop <= nBottom )
+    {
+        if ( (rPoint.Y() < nTop) || (rPoint.Y() > nBottom) )
+            return false;
+    }
+    else
+    {
+        if ( (rPoint.Y() > nTop) || (rPoint.Y() < nBottom) )
+            return false;
+    }
+    return true;
+}
+
+bool tools::Rectangle::IsInside( const tools::Rectangle& rRect ) const
+{
+    return IsInside( rRect.TopLeft() ) && IsInside( rRect.BottomRight() );
+}
+
+bool tools::Rectangle::IsOver( const tools::Rectangle& rRect ) const
+{
+    // If there's no intersection, they don't overlap
+    return !GetIntersection( rRect ).IsEmpty();
+}
+
+OString tools::Rectangle::toString() const
+{
+    std::stringstream ss;
+    // Note that this is not just used for debugging output but the
+    // format is parsed by external code (passed in callbacks to
+    // LibreOfficeKit clients). So don't change.
+    ss << getX() << ", " << getY() << ", " << getWidth() << ", " << getHeight();
+    return ss.str().c_str();
+}
+
+void tools::Rectangle::expand(long nExpandBy)
+{
+    nLeft   -= nExpandBy;
+    nTop    -= nExpandBy;
+    if (nRight == RECT_EMPTY)
+        nRight = nLeft + nExpandBy - 1;
+    else
+        nRight += nExpandBy;
+    if (nBottom == RECT_EMPTY)
+        nBottom = nTop + nExpandBy - 1;
+    else
+        nBottom += nExpandBy;
+}
+
+void tools::Rectangle::shrink(long nShrinkBy)
+{
+    nLeft   += nShrinkBy;
+    nTop    += nShrinkBy;
+    if (nRight != RECT_EMPTY)
+        nRight -= nShrinkBy;
+    if (nBottom != RECT_EMPTY)
+        nBottom -= nShrinkBy;
+}
+
+long tools::Rectangle::AdjustRight(long nHorzMoveDelta)
+{
+    if (nRight == RECT_EMPTY)
+        nRight = nLeft + nHorzMoveDelta - 1;
+    else
+        nRight += nHorzMoveDelta;
+    return nRight;
+}
+
+long tools::Rectangle::AdjustBottom( long nVertMoveDelta )
+{
+    if (nBottom == RECT_EMPTY)
+        nBottom = nTop + nVertMoveDelta - 1;
+    else
+        nBottom += nVertMoveDelta;
+    return nBottom;
+}
+
+void tools::Rectangle::setX( long x )
+{
+    if (nRight != RECT_EMPTY)
+        nRight += x - nLeft;
+    nLeft = x;
+}
+
+void tools::Rectangle::setY( long y )
+{
+    if (nBottom != RECT_EMPTY)
+        nBottom += y - nTop;
+    nTop  = y;
+}
+
+long tools::Rectangle::Right() const
+{
+    return nRight == RECT_EMPTY ? nLeft : nRight;
+}
+
+long tools::Rectangle::Bottom() const
+{
+    return nBottom == RECT_EMPTY ? nTop : nBottom;
+}
+
+/// Returns the difference between right and left, assuming the range includes one end, but not the other.
+long tools::Rectangle::getWidth() const
+{
+    return nRight == RECT_EMPTY ? 0 : nRight - nLeft;
+}
+
+/// Returns the difference between bottom and top, assuming the range includes one end, but not the other.
+long tools::Rectangle::getHeight() const
+{
+    return nBottom == RECT_EMPTY ? 0 : nBottom - nTop;
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */