##// END OF EJS Templates
Don't reserve space for chart title if it is empty....
Don't reserve space for chart title if it is empty. If title.isEmpty() returns true, chart title is no longer reserved any space. If you want to reserve space for "empty" title in the future, you can do so by specifying e.g. a single space for title. Task-number: QTRD-3480 Change-Id: I5b2b44acf715b3bd9b4243049c4985ca63a4a16d Reviewed-by: Titta Heikkala <titta.heikkala@theqtcompany.com>

File last commit:

r2776:bc1f6aa59d42
r2794:05fa3caa7879
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mainwindow.cpp
421 lines | 13.5 KiB | text/x-c | CppLexer
/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd
** All rights reserved.
** For any questions to The Qt Company, please use contact form at http://qt.io
**
** This file is part of the Qt Charts module.
**
** Licensees holding valid commercial license for Qt may use this file in
** accordance with the Qt License Agreement provided with the Software
** or, alternatively, in accordance with the terms contained in a written
** agreement between you and The Qt Company.
**
** If you have questions regarding the use of this file, please use
** contact form at http://qt.io
**
****************************************************************************/
#include "mainwindow.h"
#include "objectinspectorwidget.h"
#include "penwidget.h"
#include "brushwidget.h"
#include "engine.h"
#include <QtCore/QSettings>
#include <QtCharts/QChartView>
#include <QtWidgets/QDockWidget>
#include <QtWidgets/QMenuBar>
#include <QtWidgets/QTableWidget>
#include <QtWidgets/QSplitter>
#include <QtCore/QMetaEnum>
#include <QtGui/QStandardItemModel>
#include <QtWidgets/QHeaderView>
#include <QtCore/QDebug>
#include <QtWidgets/QMessageBox>
static const QString FILENAME_SETTING("filename");
static const QString GEOMETRY_SETTING("geometry");
MainWindow::MainWindow() :
m_engine(new Engine(this)),
m_view(new QChartView(m_engine->chart())),
m_scene(m_view->scene()),
m_table(new QTableView()),
m_addSeriesMenu(0),
m_seriesMenu(0),
m_chartMenu(0),
m_themeMenu(0),
m_animationMenu(0),
m_zoomMenu(0),
m_removeAllAction(0),
m_legendAction(0),
m_antialiasingAction(0)
{
createMenus();
createDockWidgets();
createTable();
createLayout();
QSettings settings;
restoreGeometry(settings.value(GEOMETRY_SETTING).toByteArray());
m_filename = settings.value(FILENAME_SETTING).toString();
if (m_filename.isEmpty())
m_filename = "untitled";
setWindowTitle(m_filename);
updateUI();
}
MainWindow::~MainWindow()
{
delete m_engine;
}
void MainWindow::createMenus()
{
QMenu *file = menuBar()->addMenu(tr("File"));
QMenu *edit = menuBar()->addMenu(tr("Edit"));
m_seriesMenu = menuBar()->addMenu(tr("Series"));
m_chartMenu = menuBar()->addMenu(tr("Chart"));
m_addSeriesMenu = new QMenu(tr("Add series"));
m_themeMenu = new QMenu(tr("Apply theme"));
m_animationMenu = new QMenu(tr("Animations"));
m_zoomMenu = new QMenu(tr("Zoom"));
file->addAction(tr("New"), this, SLOT(handleNewAction()));
file->addAction(tr("Load"), this, SLOT(handleLoadAction()));
file->addAction(tr("Save"), this, SLOT(handleSaveAction()));
file->addAction(tr("Save As"), this, SLOT(handleSaveAsAction()));
//seriesMenu
m_seriesMenu->addMenu(m_addSeriesMenu);
m_removeAllAction = new QAction(tr("Remove all series"), this);
QObject::connect(m_removeAllAction, SIGNAL(triggered()), this, SLOT(handleRemoveAllSeriesAction()));
m_seriesMenu->addAction(m_removeAllAction);
m_seriesMenu->addSeparator();
//seriesMenu /addSeriesMenu
{
int index = QAbstractSeries::staticMetaObject.indexOfEnumerator("SeriesType");
QMetaEnum metaEnum = QAbstractSeries::staticMetaObject.enumerator(index);
int count = metaEnum.keyCount();
for (int i = 0; i < count; ++i) {
QAction* action = new QAction(metaEnum.key(i), this);
action->setData(metaEnum.value(i));
m_addSeriesMenu->addAction(action);
QObject::connect(action, SIGNAL(triggered()), this, SLOT(handleAddSeriesMenu()));
}
}
//chartMenu / themeMenu
{
m_chartMenu->addMenu(m_themeMenu);
int index = QChart::staticMetaObject.indexOfEnumerator("ChartTheme");
QMetaEnum metaEnum = QChart::staticMetaObject.enumerator(index);
int count = metaEnum.keyCount();
for (int i = 0; i < count; ++i) {
QAction* action = new QAction(metaEnum.key(i), this);
action->setData(metaEnum.value(i));
action->setCheckable(true);
m_themeMenu->addAction(action);
QObject::connect(action, SIGNAL(triggered()), this, SLOT(handleThemeMenu()));
}
}
//chartMenu / animationMenu
{
m_chartMenu->addMenu(m_animationMenu);
int index = QChart::staticMetaObject.indexOfEnumerator("AnimationOption");
QMetaEnum metaEnum = QChart::staticMetaObject.enumerator(index);
int count = metaEnum.keyCount();
for (int i = 0; i < count; ++i) {
QAction* action = new QAction(metaEnum.key(i), this);
action->setData(metaEnum.value(i));
action->setCheckable(true);
m_animationMenu->addAction(action);
QObject::connect(action, SIGNAL(triggered()), this, SLOT(handleAnimationMenu()));
}
}
//chartMenu / zoomMenu
{
m_chartMenu->addMenu(m_zoomMenu);
int index = QChartView::staticMetaObject.indexOfEnumerator("RubberBand");
QMetaEnum metaEnum = QChartView::staticMetaObject.enumerator(index);
int count = metaEnum.keyCount();
for (int i = 0; i < count; ++i) {
QAction* action = new QAction(metaEnum.key(i), this);
action->setData(metaEnum.value(i));
action->setCheckable(true);
m_zoomMenu->addAction(action);
QObject::connect(action, SIGNAL(triggered()), this, SLOT(handleZoomMenu()));
}
}
//chartMenu / legend
m_legendAction = new QAction(tr("Legend"), this);
m_legendAction->setCheckable(true);
m_chartMenu->addAction(m_legendAction);
QObject::connect(m_legendAction, SIGNAL(triggered()), this, SLOT(handleLegendAction()));
//chartMenu / Anti-aliasing
m_antialiasingAction = new QAction(tr("Anti-aliasing"), this);
m_antialiasingAction->setCheckable(true);
m_chartMenu->addAction(m_antialiasingAction);
QObject::connect(m_antialiasingAction, SIGNAL(triggered()), this, SLOT(handleAntialiasingAction()));
}
void MainWindow::createDockWidgets()
{
m_brushWidget = new BrushWidget();
QDockWidget *brushDockWidget = new QDockWidget(tr("Brush"), this);
brushDockWidget->setFeatures(QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetFloatable);
brushDockWidget->setWidget(m_brushWidget);
addDockWidget(Qt::RightDockWidgetArea, brushDockWidget);
m_penWidget = new PenWidget();
QDockWidget *penDockWidget = new QDockWidget(tr("Pen"), this);
penDockWidget->setFeatures(QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetFloatable);
penDockWidget->setWidget(m_penWidget);
addDockWidget(Qt::RightDockWidgetArea, penDockWidget);
m_inspectorWidget = new InspectorWidget();
QDockWidget *inspectorDockWidget = new QDockWidget(tr("Object Inspector"), this);
inspectorDockWidget->setFeatures(
QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetFloatable);
inspectorDockWidget->setWidget(m_inspectorWidget);
addDockWidget(Qt::RightDockWidgetArea, inspectorDockWidget);
setDockOptions(QMainWindow::AnimatedDocks);
}
void MainWindow::createLayout()
{
m_table->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
int rowHeight = m_table->rowHeight(0);
int tableHeight = (m_engine->modelCount() * rowHeight) + m_table->horizontalHeader()->height() + 2 * m_table->frameWidth();
m_table->setMinimumHeight(tableHeight);
m_table->setMaximumHeight(tableHeight);
QSplitter *splitter = new QSplitter(this);
splitter->setOrientation(Qt::Vertical);
splitter->addWidget(m_table);
splitter->addWidget(m_view);
setCentralWidget(splitter);
m_view->hide();
}
void MainWindow::createTable()
{
m_table->setModel(m_engine->model());
m_table->setSelectionModel(m_engine->selectionModel());
QObject::connect(m_table->selectionModel(),SIGNAL(selectionChanged(QItemSelection,QItemSelection)), this,SLOT(updateUI()));
}
void MainWindow::updateUI()
{
QItemSelectionModel* selection = m_table->selectionModel();
const QModelIndexList& list = selection->selectedIndexes();
QMap<int, QModelIndex> columns;
foreach (const QModelIndex& index, list) {
columns.insertMulti(index.column(), index);
}
QList<int> keys = columns.uniqueKeys();
bool seriesEnabled = false;
foreach (QAction* action, m_addSeriesMenu->actions()) {
switch (action->data().toInt()) {
case QAbstractSeries::SeriesTypeLine:
case QAbstractSeries::SeriesTypeSpline:
case QAbstractSeries::SeriesTypeScatter:
action->setEnabled(list.count() > 0 && keys.count() >= 2);
seriesEnabled |= action->isEnabled();
break;
case QAbstractSeries::SeriesTypeBar:
case QAbstractSeries::SeriesTypePercentBar:
case QAbstractSeries::SeriesTypeStackedBar:
action->setEnabled(list.count() > 0 && keys.count() >= 2);
seriesEnabled |= action->isEnabled();
break;
case QAbstractSeries::SeriesTypePie:
action->setEnabled(list.count() > 0 && keys.count() == 2);
seriesEnabled |= action->isEnabled();
break;
case QAbstractSeries::SeriesTypeArea:
action->setEnabled(list.count() > 0 && keys.count() == 3);
seriesEnabled |= action->isEnabled();
break;
}
}
m_chartMenu->setEnabled(m_engine->chart()->series().count() > 0);
m_seriesMenu->setEnabled(seriesEnabled || m_engine->chart()->series().count() > 0);
m_removeAllAction->setEnabled(m_engine->chart()->series().count() > 0);
int theme = m_engine->chart()->theme();
foreach (QAction* action, m_themeMenu->actions()) {
action->setChecked(action->data().toInt() == theme);
}
int animation = m_engine->chart()->animationOptions();
foreach (QAction* action, m_animationMenu->actions()) {
action->setChecked(action->data().toInt() == animation);
}
int zoom = m_view->rubberBand();
foreach (QAction* action, m_zoomMenu->actions()) {
action->setChecked(action->data().toInt() == zoom);
}
m_legendAction->setChecked(m_engine->chart()->legend()->isVisible());
m_antialiasingAction->setChecked(m_view->renderHints().testFlag(QPainter::Antialiasing));
foreach (QAction *action, m_seriesMenu->actions()) {
//TODO: visibility handling
//if (m_series.value(action->text()))
// ;
//action->setChecked(false);
}
}
void MainWindow::closeEvent(QCloseEvent *event)
{
QSettings settings;
settings.setValue(GEOMETRY_SETTING, saveGeometry());
settings.setValue(FILENAME_SETTING, m_filename);
QMainWindow::closeEvent(event);
}
//handlers
void MainWindow::handleNewAction()
{
m_engine->chart()->removeAllSeries();
m_view->hide();
m_engine->clearModels();
createTable();
m_filename = "untitled";
setWindowTitle(m_filename);
updateUI();
}
void MainWindow::handleAddSeriesMenu()
{
m_view->show();
QAction* action = qobject_cast<QAction*>(sender());
QList<QAbstractSeries*> series = m_engine->addSeries(QAbstractSeries::SeriesType(action->data().toInt()));
foreach (QAbstractSeries* s , series)
{
QAction *newAction = new QAction(s->name(),this);
//newAction->setCheckable(true);
m_series.insert(s->name(),s);
m_seriesMenu->addAction(newAction);
}
updateUI();
}
void MainWindow::handleRemoveAllSeriesAction()
{
foreach (QAction* action, m_seriesMenu->actions()){
if(m_series.contains(action->text())){
m_seriesMenu->removeAction(action);
m_engine->removeSeries(m_series.value(action->text()));
delete action;
}
}
m_series.clear();
m_view->hide();
updateUI();
}
void MainWindow::handleThemeMenu()
{
QAction* action = qobject_cast<QAction*>(sender());
m_engine->chart()->setTheme(QChart::ChartTheme(action->data().toInt()));
updateUI();
}
void MainWindow::handleAnimationMenu()
{
QAction* action = qobject_cast<QAction*>(sender());
m_engine->chart()->setAnimationOptions(QChart::AnimationOption(action->data().toInt()));
updateUI();
}
void MainWindow::handleZoomMenu()
{
QAction* action = qobject_cast<QAction*>(sender());
m_view->setRubberBand(QChartView::RubberBand(action->data().toInt()));
updateUI();
}
void MainWindow::handleAntialiasingAction()
{
QAction* action = qobject_cast<QAction*>(sender());
if (action->isChecked()) {
m_view->setRenderHint(QPainter::Antialiasing, true);
}
else {
m_view->setRenderHint(QPainter::Antialiasing, false);
}
}
void MainWindow::handleLegendAction()
{
QAction* action = qobject_cast<QAction*>(sender());
if (action->isChecked()) {
m_engine->chart()->legend()->setVisible(true);
}
else {
m_engine->chart()->legend()->setVisible(false);
}
}
void MainWindow::handleSaveAction()
{
if(!m_engine->save(m_filename)) {
QScopedPointer<QMessageBox> messageBox(new QMessageBox(this));
messageBox->setIcon(QMessageBox::Warning);
messageBox->setWindowModality(Qt::WindowModal);
messageBox->setWindowTitle(QString(tr("Error")));
messageBox->setText(tr("Could not write to ") + m_filename);
messageBox->exec();
}
}
void MainWindow::handleLoadAction()
{
if(!m_engine->load(m_filename)) {
QScopedPointer<QMessageBox> messageBox(new QMessageBox(this));
messageBox->setIcon(QMessageBox::Warning);
messageBox->setWindowModality(Qt::WindowModal);
messageBox->setWindowTitle(QString(tr("Error")));
messageBox->setText(tr("Could not open ") + m_filename);
messageBox->exec();
}else createTable();
}