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Better support for negative values in stacked barcharts. Negative values are stacked from zero to negative direction. Positive values are stacked from zero to positive direction.
Better support for negative values in stacked barcharts. Negative values are stacked from zero to negative direction. Positive values are stacked from zero to positive direction.
Jani Honkonen - - Load All Authors

File last commit:

r1896:232ea264e05e
r1897:c0fc53c8ab57
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mainwidget.cpp
261 lines | 8.0 KiB | text/x-c | CppLexer
/ examples / legend / mainwidget.cpp
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Marek Rosa
License added to several files
 r1365 /****************************************************************************
**
** Copyright (C) 2012 Digia Plc
** All rights reserved.
** For any questions to Digia, please use contact form at http://qt.digia.com
**
** This file is part of the Qt Commercial Charts Add-on.
**
** $QT_BEGIN_LICENSE$
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.digia.com
** $QT_END_LICENSE$
**
****************************************************************************/
sauimone
legend detach example. Bug fixes to legend.
 r1263 #include "mainwidget.h"
#include <QChart>
#include <QChartView>
#include <QPushButton>
#include <QLabel>
#include <QDebug>
#include <QBarSet>
sauimone
GroupedBarSeries to BarSeries
 r1594 #include <QBarSeries>
sauimone
legend detach example. Bug fixes to legend.
 r1263 #include <QLegend>
sauimone
better legend detach layout. updated legend example
 r1444 #include <QFormLayout>
sauimone
legend detach example. Bug fixes to legend.
 r1263
QTCOMMERCIALCHART_USE_NAMESPACE
MainWidget::MainWidget(QWidget *parent) :
QWidget(parent)
{
sauimone
legend example to documentation. minor legend fixes
 r1300 // Create buttons for ui
sauimone
legend detach example. Bug fixes to legend.
 r1263 m_buttonLayout = new QGridLayout();
QPushButton *detachLegendButton = new QPushButton("detach legend");
connect(detachLegendButton, SIGNAL(clicked()), this, SLOT(detachLegend()));
m_buttonLayout->addWidget(detachLegendButton, 0, 0);
QPushButton *attachLegendButton = new QPushButton("attach legend");
connect(attachLegendButton, SIGNAL(clicked()), this, SLOT(attachLegend()));
m_buttonLayout->addWidget(attachLegendButton, 1, 0);
QPushButton *addSetButton = new QPushButton("add barset");
connect(addSetButton, SIGNAL(clicked()), this, SLOT(addBarset()));
m_buttonLayout->addWidget(addSetButton, 2, 0);
QPushButton *removeBarsetButton = new QPushButton("remove barset");
connect(removeBarsetButton, SIGNAL(clicked()), this, SLOT(removeBarset()));
m_buttonLayout->addWidget(removeBarsetButton, 3, 0);
sauimone
better legend detach layout. updated legend example
 r1444 QPushButton *leftButton = new QPushButton("Align legend left");
connect(leftButton, SIGNAL(clicked()), this, SLOT(setLegendLeft()));
m_buttonLayout->addWidget(leftButton, 4, 0);
QPushButton *rightButton = new QPushButton("Align legend right");
connect(rightButton, SIGNAL(clicked()), this, SLOT(setLegendRight()));
m_buttonLayout->addWidget(rightButton, 5, 0);
QPushButton *topButton = new QPushButton("Align legend top");
connect(topButton, SIGNAL(clicked()), this, SLOT(setLegendTop()));
m_buttonLayout->addWidget(topButton, 6, 0);
QPushButton *bottomButton = new QPushButton("Align legend bottom");
connect(bottomButton, SIGNAL(clicked()), this, SLOT(setLegendBottom()));
m_buttonLayout->addWidget(bottomButton, 7, 0);
sauimone
legend font fix
 r1522 QPushButton *boldButton = new QPushButton("Toggle bold");
connect(boldButton, SIGNAL(clicked()), this, SLOT(toggleBold()));
m_buttonLayout->addWidget(boldButton, 8, 0);
QPushButton *italicButton = new QPushButton("Toggle italic");
connect(italicButton, SIGNAL(clicked()), this, SLOT(toggleItalic()));
m_buttonLayout->addWidget(italicButton, 9, 0);
sauimone
better legend detach layout. updated legend example
 r1444 m_legendPosX = new QDoubleSpinBox();
m_legendPosY = new QDoubleSpinBox();
m_legendWidth = new QDoubleSpinBox();
m_legendHeight = new QDoubleSpinBox();
connect(m_legendPosX, SIGNAL(valueChanged(double)), this, SLOT(updateLegendLayout()));
connect(m_legendPosY, SIGNAL(valueChanged(double)), this, SLOT(updateLegendLayout()));
connect(m_legendWidth, SIGNAL(valueChanged(double)), this, SLOT(updateLegendLayout()));
connect(m_legendHeight, SIGNAL(valueChanged(double)), this, SLOT(updateLegendLayout()));
QFormLayout* legendLayout = new QFormLayout();
legendLayout->addRow("Horizontal position", m_legendPosX);
legendLayout->addRow("Vertical position", m_legendPosY);
legendLayout->addRow("Width", m_legendWidth);
legendLayout->addRow("Height", m_legendHeight);
m_legendSettings = new QGroupBox("Detached legend");
m_legendSettings->setLayout(legendLayout);
m_buttonLayout->addWidget(m_legendSettings);
m_legendSettings->setVisible(false);
sauimone
legend detach example. Bug fixes to legend.
 r1263 // Create chart view with the chart
sauimone
legend example to documentation. minor legend fixes
 r1300 m_chart = new QChart();
sauimone
legend detach example. Bug fixes to legend.
 r1263 m_chartView = new QChartView(m_chart, this);
sauimone
legend font fix
 r1522 // Create spinbox to modify font size
m_fontSize = new QDoubleSpinBox();
m_fontSize->setValue(m_chart->legend()->font().pointSizeF());
connect(m_fontSize, SIGNAL(valueChanged(double)), this, SLOT(fontSizeChanged()));
QFormLayout* fontLayout = new QFormLayout();
fontLayout->addRow("Legend font size", m_fontSize);
sauimone
legend detach example. Bug fixes to legend.
 r1263 // Create layout for grid and detached legend
m_mainLayout = new QGridLayout();
m_mainLayout->addLayout(m_buttonLayout, 0, 0);
sauimone
legend font fix
 r1522 m_mainLayout->addLayout(fontLayout,1,0);
sauimone
legend detach example. Bug fixes to legend.
 r1263 m_mainLayout->addWidget(m_chartView, 0, 1, 3, 1);
setLayout(m_mainLayout);
createSeries();
}
void MainWidget::createSeries()
{
sauimone
GroupedBarSeries to BarSeries
 r1594 m_series = new QBarSeries();
sauimone
legend detach example. Bug fixes to legend.
 r1263 addBarset();
addBarset();
addBarset();
addBarset();
m_chart->addSeries(m_series);
m_chart->setTitle("Legend detach example");
Marek Rosa
Updated spline nad legend example
 r1585 m_chart->createDefaultAxes();
sauimone
updated legend documentation
 r1447 //![1]
sauimone
legend detach example. Bug fixes to legend.
 r1263 m_chart->legend()->setVisible(true);
Tero Ahola
Qml ChartView properties; legend to use Qt alignments
 r1357 m_chart->legend()->setAlignment(Qt::AlignBottom);
sauimone
updated legend documentation
 r1447 //![1]
sauimone
legend detach example. Bug fixes to legend.
 r1263
m_chartView->setRenderHint(QPainter::Antialiasing);
}
sauimone
better legend detach layout. updated legend example
 r1444 void MainWidget::showLegendSpinbox()
{
m_legendSettings->setVisible(true);
QRectF chartViewRect = m_chartView->rect();
m_legendPosX->setMinimum(0);
m_legendPosX->setMaximum(chartViewRect.width());
m_legendPosX->setValue(150);
m_legendPosY->setMinimum(0);
m_legendPosY->setMaximum(chartViewRect.height());
m_legendPosY->setValue(150);
m_legendWidth->setMinimum(0);
m_legendWidth->setMaximum(chartViewRect.width());
m_legendWidth->setValue(150);
m_legendHeight->setMinimum(0);
m_legendHeight->setMaximum(chartViewRect.height());
sauimone
fixed legend scrolling in detached mode. updated example
 r1446 m_legendHeight->setValue(75);
sauimone
better legend detach layout. updated legend example
 r1444 }
void MainWidget::hideLegendSpinbox()
{
m_legendSettings->setVisible(false);
}
sauimone
legend example update
 r1273 void MainWidget::detachLegend()
sauimone
legend detach example. Bug fixes to legend.
 r1263 {
sauimone
updated legend documentation
 r1447 //![2]
sauimone
legend detach example. Bug fixes to legend.
 r1263 QLegend *legend = m_chart->legend();
sauimone
legend example update
 r1273 legend->detachFromChart();
sauimone
better legend detach layout. updated legend example
 r1444
m_chart->legend()->setBackgroundVisible(true);
m_chart->legend()->setBrush(QBrush(QColor(128,128,128,128)));
sauimone
added roundness to legend background
 r1453 m_chart->legend()->setPen(QPen(QColor(192,192,192,192)));
sauimone
updated legend documentation
 r1447 //![2]
sauimone
legend detach example. Bug fixes to legend.
 r1263
sauimone
better legend detach layout. updated legend example
 r1444 showLegendSpinbox();
updateLegendLayout();
update();
sauimone
legend detach example. Bug fixes to legend.
 r1263 }
sauimone
legend example update
 r1273
void MainWidget::attachLegend()
sauimone
legend detach example. Bug fixes to legend.
 r1263 {
sauimone
updated legend documentation
 r1447 //![3]
sauimone
legend detach example. Bug fixes to legend.
 r1263 QLegend *legend = m_chart->legend();
sauimone
better legend detach layout. updated legend example
 r1444 legend->attachToChart();
m_chart->legend()->setBackgroundVisible(false);
sauimone
updated legend documentation
 r1447 //![3]
sauimone
legend detach example. Bug fixes to legend.
 r1263
sauimone
better legend detach layout. updated legend example
 r1444 hideLegendSpinbox();
update();
sauimone
legend detach example. Bug fixes to legend.
 r1263 }
void MainWidget::addBarset()
{
sauimone
barsetCount -> count in tests and examples too
 r1463 QBarSet *barSet = new QBarSet(QString("set ") + QString::number(m_series->count()));
qreal delta = m_series->count() * 0.1;
sauimone
Removed QPointF from QBarSet
 r1580 *barSet << 1 + delta << 2 + delta << 3 + delta << 4 + delta;
sauimone
legend detach example. Bug fixes to legend.
 r1263 m_series->append(barSet);
}
void MainWidget::removeBarset()
{
sauimone
fixed crash in legend example
 r1396 QList<QBarSet*> sets = m_series->barSets();
if (sets.count() > 0) {
m_series->remove(sets.at(sets.count()-1));
}
sauimone
legend detach example. Bug fixes to legend.
 r1263 }
sauimone
better legend detach layout. updated legend example
 r1444
void MainWidget::setLegendLeft()
{
m_chart->legend()->setAlignment(Qt::AlignLeft);
}
void MainWidget::setLegendRight()
{
m_chart->legend()->setAlignment(Qt::AlignRight);
}
void MainWidget::setLegendTop()
{
m_chart->legend()->setAlignment(Qt::AlignTop);
}
void MainWidget::setLegendBottom()
{
m_chart->legend()->setAlignment(Qt::AlignBottom);
}
sauimone
legend font fix
 r1522 void MainWidget::toggleBold()
{
QFont font = m_chart->legend()->font();
font.setBold(!font.bold());
m_chart->legend()->setFont(font);
}
void MainWidget::toggleItalic()
{
QFont font = m_chart->legend()->font();
font.setItalic(!font.italic());
m_chart->legend()->setFont(font);
}
void MainWidget::fontSizeChanged()
{
QFont font = m_chart->legend()->font();
font.setPointSizeF(m_fontSize->value());
m_chart->legend()->setFont(font);
}
sauimone
better legend detach layout. updated legend example
 r1444 void MainWidget::updateLegendLayout()
{
sauimone
updated legend documentation
 r1447 //![4]
Michal Klocek
Refactors layout managment...
 r1534 m_chart->legend()->setGeometry(QRectF(m_legendPosX->value()
sauimone
better legend detach layout. updated legend example
 r1444 ,m_legendPosY->value()
,m_legendWidth->value()
Michal Klocek
Refactors layout managment...
 r1534 ,m_legendHeight->value()));
sauimone
better legend detach layout. updated legend example
 r1444 m_chart->legend()->update();
sauimone
updated legend documentation
 r1447 //![4]
sauimone
better legend detach layout. updated legend example
 r1444 }