File indexing completed on 2024-05-12 04:20:32

 /*
  * SPDX-FileCopyrightText: 2001-2015 Klaralvdalens Datakonsult AB. All rights reserved.
  *
  * This file is part of the KD Chart library.
  *
  * SPDX-License-Identifier: GPL-2.0-or-later
  */
 
 #ifndef KCHARTCHART_P_H
 #define KCHARTCHART_P_H
 
 //
 //  W A R N I N G
 //  -------------
 //
 // This file is not part of the KD Chart API.  It exists purely as an
 // implementation detail.  This header file may change from version to
 // version without notice, or even be removed.
 //
 // We mean it.
 //
 
 #include <QObject>
 #include <QHBoxLayout>
 #include <QVBoxLayout>
 
 #include "KChartChart.h"
 #include "KChartAbstractArea.h"
 #include "KChartTextArea.h"
 #include "KChartFrameAttributes.h"
 #include "KChartBackgroundAttributes.h"
 #include "KChartLayoutItems.h"
 #include "KChartMath_p.h"
 
 
 namespace KChart {
 
 class AbstractAreaWidget;
 class CartesianAxis;
 
 /*
   struct PlaneInfo can't be declared inside Chart::Private, otherwise MSVC.net says:
   qhash.h(195) : error C2248: 'KChart::Chart::Private' : cannot access protected class declared in class 'KChart::Chart'
   KChartChart_p.h(58) : see declaration of 'KChart::Chart::Private'
   KChartChart.h(61) : see declaration of 'KChart::Chart'
   KChartChart.cpp(262) : see reference to class template instantiation 'QHash<Key,T>' being compiled, with
             Key=KChart::AbstractCoordinatePlane *,
             T=KChart::Chart::Private::PlaneInfo
 */
 /**
  * \internal
  */
 struct PlaneInfo {
     PlaneInfo()
         : referencePlane( nullptr ),
           horizontalOffset( 1 ),
           verticalOffset( 1 ),
           gridLayout( nullptr ),
           topAxesLayout( nullptr ),
           bottomAxesLayout( nullptr ),
           leftAxesLayout( nullptr ),
           rightAxesLayout( nullptr )
     {}
     AbstractCoordinatePlane *referencePlane;
     int horizontalOffset;
     int verticalOffset;
     QGridLayout* gridLayout;
     QVBoxLayout* topAxesLayout;
     QVBoxLayout* bottomAxesLayout;
     QHBoxLayout* leftAxesLayout;
     QHBoxLayout* rightAxesLayout;
 };
 
 struct LayoutGraphNode
 {
     LayoutGraphNode()
         : diagramPlane( nullptr )
         , leftSuccesor( nullptr )
         , bottomSuccesor( nullptr )
         , sharedSuccesor( nullptr )
         , gridLayout( nullptr )
         , topAxesLayout( false )
         , bottomAxesLayout( false )
         , leftAxesLayout( false )
         , rightAxesLayout( false )
         , priority( -1 )
     {}
     AbstractCoordinatePlane* diagramPlane;
     LayoutGraphNode* leftSuccesor;
     LayoutGraphNode* bottomSuccesor;
     LayoutGraphNode* sharedSuccesor;
     QGridLayout* gridLayout;
     bool topAxesLayout;
     bool bottomAxesLayout;
     bool leftAxesLayout;
     bool rightAxesLayout;
     int priority;
     bool operator<( const LayoutGraphNode &other ) const
     {
         return priority < other.priority;
     }
 };
 
 
 /**
  * \internal
  */
 class Q_DECL_HIDDEN Chart::Private : public QObject
 {
     Q_OBJECT
     public:
         Chart* chart;
 
         enum AxisType { Abscissa, Ordinate };
         bool useNewLayoutSystem;
         CoordinatePlaneList coordinatePlanes;
         HeaderFooterList headerFooters;
         LegendList legends;
 
         QHBoxLayout* layout;
         QVBoxLayout* vLayout;
         QBoxLayout*  planesLayout;
         QGridLayout* gridPlaneLayout;
         QGridLayout* headerLayout;
         QGridLayout* footerLayout;
         QGridLayout* dataAndLegendLayout;
         QSpacerItem* leftOuterSpacer;
         QSpacerItem* rightOuterSpacer;
         QSpacerItem* topOuterSpacer;
         QSpacerItem* bottomOuterSpacer;
 
         QVBoxLayout* innerHdFtLayouts[2][3][3];
 
         QVector<KChart::TextArea*> textLayoutItems;
         QVector<KChart::AbstractLayoutItem*> planeLayoutItems;
         QVector<KChart::Legend*> legendLayoutItems;
 
         QSize overrideSize;
         bool isFloatingLegendsLayoutDirty;
         bool isPlanesLayoutDirty;
 
         // since we do not want to derive Chart from AbstractAreaBase, we store the attributes
         // here and call two static painting methods to draw the background and frame.
         KChart::FrameAttributes frameAttributes;
         KChart::BackgroundAttributes backgroundAttributes;
 
         // ### wrong names, "leading" means inter-line distance of text. spacing? margin?
         int globalLeadingLeft, globalLeadingRight, globalLeadingTop, globalLeadingBottom;
 
         QList< AbstractCoordinatePlane* > mouseClickedPlanes;
 
         Qt::LayoutDirection layoutDirection;
 
         Private( Chart* );
 
         ~Private() override;
 
         void createLayouts();
         void updateDirtyLayouts();
         void reapplyInternalLayouts(); // TODO: see if this can be merged with updateDirtyLayouts()
         void paintAll( QPainter* painter );
 
         struct AxisInfo {
             AxisInfo()
                 :plane(nullptr)
             {}
             AbstractCoordinatePlane *plane;
         };
         QHash<AbstractCoordinatePlane*, PlaneInfo> buildPlaneLayoutInfos();
         QVector< LayoutGraphNode* > buildPlaneLayoutGraph();
 
     public Q_SLOTS:
         void slotLayoutPlanes();
         void slotResizePlanes();
         void slotLegendPositionChanged( KChart::AbstractAreaWidget* legend );
         void slotHeaderFooterPositionChanged( KChart::HeaderFooter* hf );
         void slotUnregisterDestroyedLegend( KChart::Legend * legend );
         void slotUnregisterDestroyedHeaderFooter( KChart::HeaderFooter* headerFooter );
         void slotUnregisterDestroyedPlane( KChart::AbstractCoordinatePlane* plane );
 };
 
 }
 
 #endif