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, 160 insertions, 0 deletions

diff --git a/chart2/source/view/axes/VCartesianAxis.hxx b/chart2/source/view/axes/VCartesianAxis.hxx
new file mode 100644
index 000000000..94e9b2ab9
--- /dev/null
+++ b/chart2/source/view/axes/VCartesianAxis.hxx
@@ -0,0 +1,160 @@
+/* -*- 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 "VAxisBase.hxx"
+#include <basegfx/vector/b2dvector.hxx>
+
+namespace chart
+{
+
+class VCartesianAxis : public VAxisBase
+{
+    // public methods
+public:
+    VCartesianAxis( const AxisProperties& rAxisProperties
+           , const css::uno::Reference< css::util::XNumberFormatsSupplier >& xNumberFormatsSupplier
+           , sal_Int32 nDimensionIndex, sal_Int32 nDimensionCount
+           , PlottingPositionHelper* pPosHelper = nullptr //takes ownership
+           );
+
+    virtual ~VCartesianAxis() override;
+
+    virtual void createMaximumLabels() override;
+    virtual void createLabels() override;
+    virtual void updatePositions() override;
+
+    virtual void createShapes() override;
+
+    virtual sal_Int32 estimateMaximumAutoMainIncrementCount() override;
+    virtual void createAllTickInfos( TickInfoArraysType& rAllTickInfos ) override;
+    void createAllTickInfosFromComplexCategories( TickInfoArraysType& rAllTickInfos, bool bShiftedPosition );
+
+    TickIter* createLabelTickIterator( sal_Int32 nTextLevel );
+    TickIter* createMaximumLabelTickIterator( sal_Int32 nTextLevel );
+    sal_Int32 getTextLevelCount() const;
+
+    virtual TickFactory* createTickFactory() override;
+
+    /**
+     * Get the value at which the other axis crosses.
+     */
+    double getAxisIntersectionValue() const;
+
+    /**
+     * Get the value at which label line crosses the other axis.
+     */
+    double getLabelLineIntersectionValue() const;
+
+    /**
+     * Get the value at which extra line crosses the other axis.
+     *
+     * @return a NaN if the line doesn't cross the other axis, a non-NaN value
+     *         otherwise.
+     */
+    double getExtraLineIntersectionValue() const;
+
+    void get2DAxisMainLine(
+        basegfx::B2DVector& rStart, basegfx::B2DVector& rEnd, AxisLabelAlignment& rLabelAlignment,
+        double fCrossesOtherAxis ) const;
+
+    //Layout interface for cartesian axes:
+
+    //the returned value describes the minimum size that is necessary
+    //for the text labels in the direction orthogonal to the axis
+    //(for an y-axis a width is returned; in case of an x-axis the value describes a height)
+    //the return value is measured in screen dimension
+    //As an example the MinimumOrthogonalSize of an x-axis equals the
+    //Font Height if the label properties allow for labels parallel to the axis.
+//    sal_Int32 calculateMinimumOrthogonalSize( /*... parallel...*/ );
+    //Minimum->Preferred
+
+    //returns true if the MinimumOrthogonalSize can be calculated
+    //with the creation of at most one text shape
+    //(this is e.g. true if the parameters allow for labels parallel to the axis.)
+//    sal_bool  canQuicklyCalculateMinimumOrthogonalSize();
+
+    struct ScreenPosAndLogicPos
+    {
+        double fLogicX;
+        double fLogicY;
+        double fLogicZ;
+
+        ::basegfx::B2DVector aScreenPos;
+    };
+
+private: //methods
+    /**
+     * Go through all tick label positions and decide which labels to display
+     * based on the text shape geometry, overlap setting, tick interval,
+     * auto-stagger setting etc.
+     *
+     * When the auto-stagger setting is on, try to avoid overlaps by
+     * staggering labels or set the labels at an angle.  This method may
+     * change the axis label properties especially when the auto staggering is
+     * performed.  But the screen label positions will not be shifted in this
+     * method; it will be done in the doStaggeringOfLabels method.
+     *
+     * @return true if the text shapes have been successfully created,
+     *         otherwise false.  Returning false means the AxisLabelProperties
+     *         have changed during the call, and the caller needs to call this
+     *         method once again to get the text shapes created.
+     */
+    bool createTextShapes(
+        const rtl::Reference< SvxShapeGroupAnyD >& xTarget,
+        TickIter& rTickIter, AxisLabelProperties& rAxisLabelProperties,
+        TickFactory2D const * pTickFactory, sal_Int32 nScreenDistanceBetweenTicks );
+
+    /**
+     * Variant of createTextShapes where none of auto-staggering and
+     * link-breaking are allowed in case of overlaps.  Overlaps of text shapes
+     * are to be resolved only by adjusting the label tick interval.
+     */
+    bool createTextShapesSimple(
+        const rtl::Reference< SvxShapeGroupAnyD >& xTarget,
+        TickIter& rTickIter, AxisLabelProperties& rAxisLabelProperties,
+        TickFactory2D const * pTickFactory );
+
+    void createTickMarkLineShapes( TickInfoArrayType& rTickInfos, const TickmarkProperties& rTickmarkProperties, TickFactory2D const & rTickFactory2D, bool bOnlyAtLabels );
+
+    TickFactory2D* createTickFactory2D();
+    void hideIdenticalScreenValues( TickInfoArraysType& rTickInfos ) const;
+
+    /**
+     * Shift the screen positions of the tick labels according to the stagger
+     * settings.  Final stagger setting is decided during the createTextShapes
+     * call, but this method does the physical shifting of the label
+     * positions based on the final stagger setting.
+     */
+    void    doStaggeringOfLabels( const AxisLabelProperties& rAxisLabelProperties
+                            , TickFactory2D const * pTickFactory2D );
+
+    /**
+     * @return true if we can break a single line label text into multiple
+     *         lines for better fitting, otherwise false.
+     */
+    bool isBreakOfLabelsAllowed( const AxisLabelProperties& rAxisLabelProperties, bool bIsHorizontalAxis, bool bIsVerticalAxis ) const;
+
+    ::basegfx::B2DVector getScreenPosition( double fLogicX, double fLogicY, double fLogicZ ) const;
+    ScreenPosAndLogicPos getScreenPosAndLogicPos( double fLogicX, double fLogicY, double fLogicZ ) const;
+};
+
+} //namespace chart
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */