Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

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

1 files changed, 381 insertions, 0 deletions

diff --git a/chart2/source/tools/RelativePositionHelper.cxx b/chart2/source/tools/RelativePositionHelper.cxx
new file mode 100644
index 000000000..260888e90
--- /dev/null
+++ b/chart2/source/tools/RelativePositionHelper.cxx
@@ -0,0 +1,381 @@
+/* -*- 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 <RelativePositionHelper.hxx>
+#include <com/sun/star/chart2/RelativeSize.hpp>
+#include <com/sun/star/awt/Size.hpp>
+#include <rtl/math.hxx>
+#include <osl/diagnose.h>
+
+using namespace ::com::sun::star;
+
+namespace chart
+{
+
+chart2::RelativePosition RelativePositionHelper::getReanchoredPosition(
+    const chart2::RelativePosition & rPosition,
+    const chart2::RelativeSize & rObjectSize,
+    drawing::Alignment aNewAnchor )
+{
+    chart2::RelativePosition aResult( rPosition );
+    if( rPosition.Anchor != aNewAnchor )
+    {
+        sal_Int32 nShiftHalfWidths  = 0;
+        sal_Int32 nShiftHalfHeights = 0;
+
+        // normalize to top-left
+        switch( rPosition.Anchor )
+        {
+            case drawing::Alignment_TOP_LEFT:
+                break;
+            case drawing::Alignment_LEFT:
+                nShiftHalfHeights -= 1;
+                break;
+            case drawing::Alignment_BOTTOM_LEFT:
+                nShiftHalfHeights -= 2;
+                break;
+            case drawing::Alignment_TOP:
+                nShiftHalfWidths  -= 1;
+                break;
+            case drawing::Alignment_CENTER:
+                nShiftHalfWidths  -= 1;
+                nShiftHalfHeights -= 1;
+                break;
+            case drawing::Alignment_BOTTOM:
+                nShiftHalfWidths  -= 1;
+                nShiftHalfHeights -= 2;
+                break;
+            case drawing::Alignment_TOP_RIGHT:
+                nShiftHalfWidths  -= 2;
+                break;
+            case drawing::Alignment_RIGHT:
+                nShiftHalfWidths  -= 2;
+                nShiftHalfHeights -= 1;
+                break;
+            case drawing::Alignment_BOTTOM_RIGHT:
+                nShiftHalfWidths  -= 2;
+                nShiftHalfHeights -= 2;
+                break;
+            case drawing::Alignment::Alignment_MAKE_FIXED_SIZE:
+                break;
+        }
+
+        // transform
+        switch( aNewAnchor )
+        {
+            case drawing::Alignment_TOP_LEFT:
+                break;
+            case drawing::Alignment_LEFT:
+                nShiftHalfHeights += 1;
+                break;
+            case drawing::Alignment_BOTTOM_LEFT:
+                nShiftHalfHeights += 2;
+                break;
+            case drawing::Alignment_TOP:
+                nShiftHalfWidths  += 1;
+                break;
+            case drawing::Alignment_CENTER:
+                nShiftHalfWidths  += 1;
+                nShiftHalfHeights += 1;
+                break;
+            case drawing::Alignment_BOTTOM:
+                nShiftHalfWidths  += 1;
+                nShiftHalfHeights += 2;
+                break;
+            case drawing::Alignment_TOP_RIGHT:
+                nShiftHalfWidths  += 2;
+                break;
+            case drawing::Alignment_RIGHT:
+                nShiftHalfWidths  += 2;
+                nShiftHalfHeights += 1;
+                break;
+            case drawing::Alignment_BOTTOM_RIGHT:
+                nShiftHalfWidths  += 2;
+                nShiftHalfHeights += 2;
+                break;
+            case drawing::Alignment::Alignment_MAKE_FIXED_SIZE:
+                break;
+        }
+
+        if( nShiftHalfWidths != 0 )
+            aResult.Primary += (rObjectSize.Primary / 2.0) * nShiftHalfWidths;
+        if( nShiftHalfHeights != 0 )
+            aResult.Secondary += (rObjectSize.Secondary / 2.0) * nShiftHalfHeights;
+    }
+
+    return aResult;
+}
+
+awt::Point RelativePositionHelper::getUpperLeftCornerOfAnchoredObject(
+      awt::Point aPoint
+    , awt::Size aObjectSize
+    , drawing::Alignment aAnchor )
+{
+    awt::Point aResult( aPoint );
+
+    double fXDelta = 0.0;
+    double fYDelta = 0.0;
+
+    // adapt x-value
+    switch( aAnchor )
+    {
+        case drawing::Alignment_TOP:
+        case drawing::Alignment_CENTER:
+        case drawing::Alignment_BOTTOM:
+            fXDelta -= static_cast< double >( aObjectSize.Width ) / 2.0;
+            break;
+        case drawing::Alignment_TOP_RIGHT:
+        case drawing::Alignment_RIGHT:
+        case drawing::Alignment_BOTTOM_RIGHT:
+            fXDelta -= aObjectSize.Width;
+            break;
+        case drawing::Alignment_TOP_LEFT:
+        case drawing::Alignment_LEFT:
+        case drawing::Alignment_BOTTOM_LEFT:
+        default:
+            // nothing to do
+            break;
+    }
+
+    // adapt y-value
+    switch( aAnchor )
+    {
+        case drawing::Alignment_LEFT:
+        case drawing::Alignment_CENTER:
+        case drawing::Alignment_RIGHT:
+            fYDelta -= static_cast< double >( aObjectSize.Height ) / 2.0;
+            break;
+        case drawing::Alignment_BOTTOM_LEFT:
+        case drawing::Alignment_BOTTOM:
+        case drawing::Alignment_BOTTOM_RIGHT:
+            fYDelta -= aObjectSize.Height;
+            break;
+        case drawing::Alignment_TOP_LEFT:
+        case drawing::Alignment_TOP:
+        case drawing::Alignment_TOP_RIGHT:
+        default:
+            // nothing to do
+            break;
+    }
+
+    aResult.X += static_cast< sal_Int32 >( ::rtl::math::round( fXDelta ));
+    aResult.Y += static_cast< sal_Int32 >( ::rtl::math::round( fYDelta ));
+
+    return aResult;
+}
+
+awt::Point RelativePositionHelper::getCenterOfAnchoredObject(
+      awt::Point aPoint
+    , awt::Size aUnrotatedObjectSize
+    , drawing::Alignment aAnchor
+    , double fAnglePi )
+{
+    awt::Point aResult( aPoint );
+
+    double fXDelta = 0.0;
+    double fYDelta = 0.0;
+
+    // adapt x-value
+    switch( aAnchor )
+    {
+        case drawing::Alignment_TOP:
+        case drawing::Alignment_CENTER:
+        case drawing::Alignment_BOTTOM:
+            // nothing to do
+            break;
+        case drawing::Alignment_TOP_RIGHT:
+        case drawing::Alignment_RIGHT:
+        case drawing::Alignment_BOTTOM_RIGHT:
+            fXDelta -= aUnrotatedObjectSize.Width/2;
+            break;
+        case drawing::Alignment_TOP_LEFT:
+        case drawing::Alignment_LEFT:
+        case drawing::Alignment_BOTTOM_LEFT:
+        default:
+            fXDelta += aUnrotatedObjectSize.Width/2;
+            break;
+    }
+
+    // adapt y-value
+    switch( aAnchor )
+    {
+        case drawing::Alignment_LEFT:
+        case drawing::Alignment_CENTER:
+        case drawing::Alignment_RIGHT:
+            // nothing to do
+            break;
+        case drawing::Alignment_BOTTOM_LEFT:
+        case drawing::Alignment_BOTTOM:
+        case drawing::Alignment_BOTTOM_RIGHT:
+            fYDelta -= aUnrotatedObjectSize.Height/2;
+            break;
+        case drawing::Alignment_TOP_LEFT:
+        case drawing::Alignment_TOP:
+        case drawing::Alignment_TOP_RIGHT:
+            fYDelta += aUnrotatedObjectSize.Height/2;
+            break;
+        default:
+            // nothing to do
+            break;
+    }
+
+    //take rotation into account:
+    aResult.X += static_cast< sal_Int32 >(
+        ::rtl::math::round(    fXDelta * std::cos( fAnglePi ) + fYDelta * std::sin( fAnglePi ) ) );
+    aResult.Y += static_cast< sal_Int32 >(
+        ::rtl::math::round(  - fXDelta * std::sin( fAnglePi ) + fYDelta * std::cos( fAnglePi ) ) );
+
+    return aResult;
+}
+
+bool RelativePositionHelper::centerGrow(
+    chart2::RelativePosition & rInOutPosition,
+    chart2::RelativeSize & rInOutSize,
+    double fAmountX, double fAmountY )
+{
+    chart2::RelativePosition aPos( rInOutPosition );
+    chart2::RelativeSize     aSize( rInOutSize );
+    const double fPosCheckThreshold = 0.02;
+    const double fSizeCheckThreshold = 0.1;
+
+    // grow/shrink, back to relative
+    aSize.Primary += fAmountX;
+    aSize.Secondary += fAmountY;
+
+    double fShiftAmountX = fAmountX / 2.0;
+    double fShiftAmountY = fAmountY / 2.0;
+
+    // shift X
+    switch( rInOutPosition.Anchor )
+    {
+        case drawing::Alignment_TOP_LEFT:
+        case drawing::Alignment_LEFT:
+        case drawing::Alignment_BOTTOM_LEFT:
+            aPos.Primary -= fShiftAmountX;
+            break;
+        case drawing::Alignment_TOP:
+        case drawing::Alignment_CENTER:
+        case drawing::Alignment_BOTTOM:
+            // nothing
+            break;
+        case drawing::Alignment_TOP_RIGHT:
+        case drawing::Alignment_RIGHT:
+        case drawing::Alignment_BOTTOM_RIGHT:
+            aPos.Primary += fShiftAmountX;
+            break;
+        case drawing::Alignment::Alignment_MAKE_FIXED_SIZE:
+            break;
+    }
+
+    // shift Y
+    switch( rInOutPosition.Anchor )
+    {
+        case drawing::Alignment_TOP:
+        case drawing::Alignment_TOP_LEFT:
+        case drawing::Alignment_TOP_RIGHT:
+            aPos.Secondary -= fShiftAmountY;
+            break;
+        case drawing::Alignment_CENTER:
+        case drawing::Alignment_LEFT:
+        case drawing::Alignment_RIGHT:
+            // nothing
+            break;
+        case drawing::Alignment_BOTTOM:
+        case drawing::Alignment_BOTTOM_LEFT:
+        case drawing::Alignment_BOTTOM_RIGHT:
+            aPos.Secondary += fShiftAmountY;
+            break;
+        case drawing::Alignment::Alignment_MAKE_FIXED_SIZE:
+            break;
+    }
+
+    // anchor must not be changed
+    OSL_ASSERT( rInOutPosition.Anchor == aPos.Anchor );
+
+    if( rInOutPosition.Primary == aPos.Primary &&
+        rInOutPosition.Secondary == aPos.Secondary &&
+        rInOutSize.Primary == aSize.Primary &&
+        rInOutSize.Secondary == aSize.Secondary )
+        return false;
+
+    // Note: this somewhat complicated check allows the output being
+    // out-of-bounds if the input was also out-of-bounds, and the change is
+    // for "advantage".  E.g., you have a chart that laps out on the left
+    // side. If you shrink it, this should be possible, also if it still
+    // laps out on the left side afterwards. But you shouldn't be able to
+    // grow it then.
+
+    chart2::RelativePosition aUpperLeft(
+        RelativePositionHelper::getReanchoredPosition( aPos, aSize, drawing::Alignment_TOP_LEFT ));
+    chart2::RelativePosition aLowerRight(
+        RelativePositionHelper::getReanchoredPosition( aPos, aSize, drawing::Alignment_BOTTOM_RIGHT ));
+
+    // Do not grow, if this leads to corners being off-screen
+    if( fAmountX > 0.0 &&
+        ( (aUpperLeft.Primary < fPosCheckThreshold) ||
+          (aLowerRight.Primary > (1.0 - fPosCheckThreshold)) ))
+        return false;
+    if( fAmountY > 0.0 &&
+        ( (aUpperLeft.Secondary < fPosCheckThreshold) ||
+          (aLowerRight.Secondary > (1.0 - fPosCheckThreshold)) ))
+        return false;
+
+    // Do not shrink, if this leads to a size too small
+    if( fAmountX < 0.0 &&
+        ( aSize.Primary < fSizeCheckThreshold ))
+        return false;
+    if( fAmountY < 0.0 &&
+        ( aSize.Secondary < fSizeCheckThreshold ))
+        return false;
+
+    rInOutPosition = aPos;
+    rInOutSize = aSize;
+    return true;
+}
+
+bool RelativePositionHelper::moveObject(
+    chart2::RelativePosition & rInOutPosition,
+    const chart2::RelativeSize & rObjectSize,
+    double fAmountX, double fAmountY )
+{
+    chart2::RelativePosition aPos( rInOutPosition );
+    aPos.Primary += fAmountX;
+    aPos.Secondary += fAmountY;
+    const double fPosCheckThreshold = 0.02;
+
+    chart2::RelativePosition aUpperLeft(
+        RelativePositionHelper::getReanchoredPosition( aPos, rObjectSize, drawing::Alignment_TOP_LEFT ));
+    chart2::RelativePosition aLowerRight( aUpperLeft );
+    aLowerRight.Primary += rObjectSize.Primary;
+    aLowerRight.Secondary += rObjectSize.Secondary;
+
+    const double fFarEdgeThreshold = 1.0 - fPosCheckThreshold;
+    if( ( fAmountX > 0.0 && (aLowerRight.Primary > fFarEdgeThreshold)) ||
+        ( fAmountX < 0.0 && (aUpperLeft.Primary < fPosCheckThreshold)) ||
+        ( fAmountY > 0.0 && (aLowerRight.Secondary > fFarEdgeThreshold)) ||
+        ( fAmountY < 0.0 && (aUpperLeft.Secondary < fPosCheckThreshold)) )
+        return false;
+
+    rInOutPosition = aPos;
+    return true;
+}
+
+} //  namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */