xref: /aoo41x/main/chart2/source/view/axes/Tickmarks.hxx (revision de7b3f82)

/**************************************************************
 *
 * 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
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/


#ifndef _CHART2_TICKMARKS_HXX
#define _CHART2_TICKMARKS_HXX

#include "TickmarkProperties.hxx"
#include "VAxisProperties.hxx"
#include "chartview/ExplicitScaleValues.hxx"
#include <basegfx/vector/b2dvector.hxx>
#include <com/sun/star/drawing/PointSequenceSequence.hpp>
#include <com/sun/star/drawing/XShape.hpp>
#include <com/sun/star/uno/Sequence.h>

#include <vector>

//.............................................................................
namespace chart
{
//.............................................................................

using ::basegfx::B2DVector;
//-----------------------------------------------------------------------------
/**
*/

struct TickInfo
{
    double      fScaledTickValue;
    ::com::sun::star::uno::Reference<
                    ::com::sun::star::chart2::XScaling > xInverseScaling;

    ::basegfx::B2DVector  aTickScreenPosition;
    bool        bPaintIt;

    ::com::sun::star::uno::Reference<
        ::com::sun::star::drawing::XShape > xTextShape;

    rtl::OUString aText;//used only for complex categories so far
    sal_Int32 nFactorForLimitedTextWidth;//categories in higher levels of complex categories can have more place than a single simple category

//methods:
    TickInfo( const ::com::sun::star::uno::Reference<
                    ::com::sun::star::chart2::XScaling >& xInverseScaling );

    double getUnscaledTickValue() const;
    sal_Int32 getScreenDistanceBetweenTicks( const TickInfo& rOherTickInfo ) const;
private:
    TickInfo();
};
class TickIter
{
public:
    virtual ~TickIter(){};
    virtual TickInfo* firstInfo()=0;
    virtual TickInfo* nextInfo()=0;
};

class PureTickIter : public TickIter
{
public:
    PureTickIter( ::std::vector< TickInfo >& rTickInfoVector );
    virtual ~PureTickIter();
    virtual TickInfo* firstInfo();
    virtual TickInfo* nextInfo();

private:
    ::std::vector< TickInfo >& m_rTickVector;
    ::std::vector< TickInfo >::iterator m_aTickIter;
};

class TickFactory
{
public:
    TickFactory(
         const ExplicitScaleData& rScale
        , const ExplicitIncrementData& rIncrement );
    virtual ~TickFactory();

    void getAllTicks( ::std::vector< ::std::vector< TickInfo > >& rAllTickInfos ) const;
    void getAllTicksShifted( ::std::vector< ::std::vector< TickInfo > >& rAllTickInfos ) const;
    virtual void updateScreenValues( ::std::vector< ::std::vector< TickInfo > >& /*rAllTickInfos*/ ) const {}

private: //methods
    bool        isDateAxis() const;

protected: //member
    ExplicitScaleData     m_rScale;
    ExplicitIncrementData m_rIncrement;
    ::com::sun::star::uno::Reference< ::com::sun::star::chart2::XScaling >
                                                m_xInverseScaling;

    //minimum and maximum of the visible range after scaling
    double    m_fScaledVisibleMin;
    double    m_fScaledVisibleMax;
};

class TickFactory_2D : public TickFactory
{
public:
    TickFactory_2D(
        const ExplicitScaleData& rScale
        , const ExplicitIncrementData& rIncrement
        , const ::basegfx::B2DVector& rStartScreenPos, const ::basegfx::B2DVector& rEndScreenPos
        , const ::basegfx::B2DVector& rAxisLineToLabelLineShift );
        //, double fStrech_SceneToScreen, double fOffset_SceneToScreen );
    virtual ~TickFactory_2D();

    static sal_Int32    getTickScreenDistance( TickIter& rIter );

    void createPointSequenceForAxisMainLine( ::com::sun::star::drawing::PointSequenceSequence& rPoints ) const;
    void addPointSequenceForTickLine( ::com::sun::star::drawing::PointSequenceSequence& rPoints
                            , sal_Int32 nSequenceIndex
                            , double fScaledLogicTickValue, double fInnerDirectionSign
                            , const TickmarkProperties& rTickmarkProperties, bool bPlaceAtLabels ) const;
    ::basegfx::B2DVector  getDistanceAxisTickToText( const AxisProperties& rAxisProperties
        , bool bIncludeFarAwayDistanceIfSo = false
        , bool bIncludeSpaceBetweenTickAndText = true ) const;

    virtual void        updateScreenValues( ::std::vector< ::std::vector< TickInfo > >& rAllTickInfos ) const;

    bool  isHorizontalAxis() const;
    bool  isVerticalAxis() const;

protected: //methods
    ::basegfx::B2DVector     getTickScreenPosition2D( double fScaledLogicTickValue ) const;

private: //member
    ::basegfx::B2DVector    m_aAxisStartScreenPosition2D;
    ::basegfx::B2DVector    m_aAxisEndScreenPosition2D;

    //labels might be posioned high or low on the border of the diagram far away from the axis
    //add this vector to go from the axis line to the label line (border of the diagram)
    ::basegfx::B2DVector    m_aAxisLineToLabelLineShift;

    double      m_fStrech_LogicToScreen;
    double      m_fOffset_LogicToScreen;
};

//.............................................................................
} //namespace chart
//.............................................................................
#endif