1 /**
2  * Copyright (C) 2001-2015 Klaralvdalens Datakonsult AB.  All rights reserved.
3  *
4  * This file is part of the KD Chart library.
5  *
6  * This program is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU General Public License as
8  * published by the Free Software Foundation; either version 2 of
9  * the License, or (at your option) any later version.
10  *
11  * This program is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14  * GNU General Public License for more details.
15  *
16  * You should have received a copy of the GNU General Public License
17  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
18  */
19 
20 #include "axissettings.h"
21 
22 #include "ui_axissettings.h"
23 
24 #include <QHash>
25 #include <QVector>
26 
27 #include <QComboBox>
28 
29 #include <KChartChart>
30 #include <KChartCartesianAxis>
31 #include <KChartCartesianCoordinatePlane>
32 #include <KChartAbstractCartesianDiagram>
33 #include <KChartRulerAttributes>
34 
35 #include <QDebug>
36 
37 using namespace KChart;
38 
39 class AxisSettings::Private : public QObject
40 {
41     Q_OBJECT
42 public:
43     Private( Chart* chart, AxisSettings *q );
44     void init();
45     CartesianAxis *m_currentAxis;
46     QHash< CartesianCoordinatePlane*, QVector< CartesianAxis* > > m_axisCache;
47     Chart *m_chart;
48     Ui::AxisSettings ui;
49     AxisSettings *qq;
50 public Q_SLOTS:
51     void currentIndexChanged( int index );
52     void setVisible( bool value );
53     void setShowMajorTickMarks( bool value );
54     void setShowMinorTickMarks( bool value );
55 private:
56     void updateUiForCurrentAxis();
57 };
58 
Private(Chart * chart,AxisSettings * q)59 AxisSettings::Private::Private( Chart* chart, AxisSettings *q )
60     : m_chart( chart )
61     , qq( q )
62 {
63 
64 }
65 
init()66 void AxisSettings::Private::init()
67 {
68     ui.axisSelection->addItem( QIcon(), tr( "Left Y-Axis" ), CartesianAxis::Left );
69     ui.axisSelection->addItem( QIcon(), tr( "Right Y-Axis" ), CartesianAxis::Right );
70     ui.axisSelection->addItem( QIcon(), tr( "Bottom X-Axis" ), CartesianAxis::Bottom );
71     ui.axisSelection->addItem( QIcon(), tr( "Top X-Axis" ), CartesianAxis::Top );
72     connect( ui.axisSelection, SIGNAL(currentIndexChanged(int)), this, SLOT(currentIndexChanged(int)) );
73     connect( ui.axisVisibility, SIGNAL(toggled(bool)), this, SLOT(setVisible(bool)) );
74     connect( ui.majorTicks, SIGNAL(toggled(bool)), this, SLOT(setShowMajorTickMarks(bool)) );
75     connect( ui.minorTicks, SIGNAL(toggled(bool)), this, SLOT(setShowMinorTickMarks(bool)) );
76     ui.axisSelection->setCurrentIndex( 0 );
77 }
78 
currentIndexChanged(int index)79 void AxisSettings::Private::currentIndexChanged( int index )
80 {
81     m_currentAxis = nullptr;
82     const CartesianAxis::Position pos = ( CartesianAxis::Position ) ui.axisSelection->itemData( index ).toInt();
83     CartesianCoordinatePlane *plane =  qobject_cast< CartesianCoordinatePlane* >( m_chart->coordinatePlane() );
84     AbstractCartesianDiagram *diag =  qobject_cast< AbstractCartesianDiagram* >( m_chart->coordinatePlane()->diagram() );
85     if ( plane && diag )
86     {
87         const QVector< CartesianAxis* > axes = diag->axes().toVector();
88         for ( CartesianAxis *axis : axes )
89         {
90             if ( axis->position() == pos )
91             {
92                 m_currentAxis = axis;
93                 break;
94             }
95         }
96     }
97     updateUiForCurrentAxis();
98 }
99 
updateUiForCurrentAxis()100 void AxisSettings::Private::updateUiForCurrentAxis()
101 {
102     const bool prevSignalsBlocked = ui.axisVisibility->blockSignals( true );
103     ui.axisVisibility->setChecked( m_currentAxis );
104     ui.axisVisibility->blockSignals( prevSignalsBlocked );
105 
106     ui.majorTicks->setEnabled( m_currentAxis );
107     ui.minorTicks->setEnabled( m_currentAxis );
108     if ( m_currentAxis )
109     {
110         const RulerAttributes rulerAttr = m_currentAxis->rulerAttributes();
111         ui.majorTicks->setChecked( rulerAttr.showMajorTickMarks() );
112         ui.minorTicks->setChecked( rulerAttr.showMinorTickMarks() );
113     }
114     else
115     {
116         ui.majorTicks->setChecked( false );
117         ui.minorTicks->setChecked( false );
118     }
119 }
120 
setVisible(bool value)121 void AxisSettings::Private::setVisible( bool value )
122 {
123     const CartesianAxis::Position pos = ( CartesianAxis::Position ) ui.axisSelection->itemData( ui.axisSelection->currentIndex() ).toInt();
124     CartesianCoordinatePlane *plane =  qobject_cast< CartesianCoordinatePlane* >( m_chart->coordinatePlane() );
125     AbstractCartesianDiagram *diag =  qobject_cast< AbstractCartesianDiagram* >( m_chart->coordinatePlane()->diagram() );
126     if ( plane && diag )
127     {
128         const QVector< CartesianAxis* > axes = m_axisCache[ plane ];
129         bool foundAxis = false;
130         for ( CartesianAxis *axis : axes )
131         {
132             if ( axis->position() == pos )
133             {
134                 foundAxis = true;
135                 if ( !value )
136                 {
137                     diag->takeAxis( axis );
138                     m_currentAxis = nullptr;
139                 }
140                 else
141                 {
142                     diag->addAxis( axis );
143                     m_currentAxis = axis;
144                 }
145                 break;
146             }
147         }
148         if ( !foundAxis )
149         {
150             Q_ASSERT( value );
151             CartesianAxis *axis = new CartesianAxis( diag );
152             axis->setPosition( pos );
153             diag->addAxis( axis );
154             m_axisCache[ plane ].append( axis );
155             m_currentAxis = axis;
156         }
157         updateUiForCurrentAxis();
158         m_chart->update();
159     }
160 }
161 
setShowMajorTickMarks(bool value)162 void AxisSettings::Private::setShowMajorTickMarks( bool value )
163 {
164     if ( m_currentAxis )
165     {
166         RulerAttributes attr( m_currentAxis->rulerAttributes() );
167         attr.setShowMajorTickMarks( value );
168         m_currentAxis->setRulerAttributes( attr );
169         m_chart->update();
170     }
171 }
172 
setShowMinorTickMarks(bool value)173 void AxisSettings::Private::setShowMinorTickMarks( bool value )
174 {
175     if ( m_currentAxis )
176     {
177         RulerAttributes attr( m_currentAxis->rulerAttributes() );
178         attr.setShowMinorTickMarks( value );
179         m_currentAxis->setRulerAttributes( attr );
180         m_chart->update();
181     }
182 }
183 
AxisSettings(Chart * chart,QWidget * parent)184 AxisSettings::AxisSettings( Chart *chart, QWidget *parent )
185     : QWidget( parent )
186     , d( new Private( chart, this ) )
187 {
188     d->ui.setupUi( this );
189     d->init();
190 }
191 
~AxisSettings()192 AxisSettings::~AxisSettings()
193 {
194     delete d;
195 }
196 
diagramTypeChanged()197 void AxisSettings::diagramTypeChanged()
198 {
199     CartesianCoordinatePlane *plane =  qobject_cast< CartesianCoordinatePlane* >( d->m_chart->coordinatePlane() );
200     setEnabled( plane );
201     if ( plane )
202         d->currentIndexChanged( d->ui.axisSelection->currentIndex() );
203 }
204 
205 #include "axissettings.moc"
206