##// END OF EJS Templates
coding style fixes for examples
coding style fixes for examples

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window.cpp
591 lines | 18.6 KiB | text/x-c | CppLexer
/****************************************************************************
**
** 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
** $QT_END_LICENSE$
**
****************************************************************************/
#include "window.h"
#include "view.h"
#include "charts.h"
#include <QChartView>
#include <QAreaSeries>
#include <QLegend>
#include <QGridLayout>
#include <QFormLayout>
#include <QComboBox>
#include <QSpinBox>
#include <QCheckBox>
#include <QGroupBox>
#include <QLabel>
#include <QGraphicsScene>
#include <QGraphicsGridLayout>
#include <QGraphicsLinearLayout>
#include <QGraphicsProxyWidget>
#include <QGLWidget>
#include <QApplication>
#include <QDebug>
#include <QMenu>
Window::Window(QWidget* parent) :
QMainWindow(parent),
m_listCount(3),
m_valueMax(10),
m_valueCount(7),
m_scene(new QGraphicsScene(this)),
m_view(0),
m_dataTable(Model::generateRandomData(m_listCount, m_valueMax, m_valueCount)),
m_form(0),
m_themeComboBox(0),
m_antialiasCheckBox(0),
m_animatedComboBox(0),
m_legendComboBox(0),
m_templateComboBox(0),
m_openGLCheckBox(0),
m_zoomCheckBox(0),
m_scrollCheckBox(0),
m_rubberBand(new QGraphicsRectItem()),
m_baseLayout(new QGraphicsGridLayout()),
m_menu(createMenu()),
m_state(NoState),
m_currentState(NoState),
m_template(0)
{
createProxyWidgets();
// create layout
QGraphicsLinearLayout *settingsLayout = new QGraphicsLinearLayout();
settingsLayout->setOrientation(Qt::Vertical);
settingsLayout->setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Maximum);
settingsLayout->addItem(m_widgetHash["openGLCheckBox"]);
settingsLayout->addItem(m_widgetHash["antialiasCheckBox"]);
settingsLayout->addItem(m_widgetHash["themeLabel"]);
settingsLayout->addItem(m_widgetHash["themeComboBox"]);
settingsLayout->addItem(m_widgetHash["animationsLabel"]);
settingsLayout->addItem(m_widgetHash["animatedComboBox"]);
settingsLayout->addItem(m_widgetHash["legendLabel"]);
settingsLayout->addItem(m_widgetHash["legendComboBox"]);
settingsLayout->addItem(m_widgetHash["templateLabel"]);
settingsLayout->addItem(m_widgetHash["templateComboBox"]);
settingsLayout->addItem(m_widgetHash["scrollCheckBox"]);
settingsLayout->addItem(m_widgetHash["zoomCheckBox"]);
settingsLayout->addStretch();
m_baseLayout->addItem(settingsLayout, 0, 3, 2, 1);
//create charts
Charts::ChartList list = Charts::chartList();
for (int i = 0; i < 9; ++i) {
QChart* chart = 0;
if(i<list.size()){
chart = list.at(i)->createChart(m_dataTable);
}else{
chart = new QChart();
chart->setTitle(tr("Empty"));
}
m_baseLayout->addItem(chart, i / 3, i % 3);
m_chartHash[chart] = i;
}
m_form = new QGraphicsWidget();
m_form->setLayout(m_baseLayout);
m_scene->addItem(m_form);
m_scene->addItem(m_rubberBand);
m_rubberBand->setVisible(false);
m_view = new View(m_scene, m_form);
m_view->setMinimumSize(m_form->minimumSize().toSize());
// Set defaults
m_antialiasCheckBox->setChecked(true);
updateUI();
setCentralWidget(m_view);
connectSignals();
}
Window::~Window()
{
}
void Window::connectSignals()
{
QObject::connect(m_form, SIGNAL(geometryChanged()),this ,SLOT(handleGeometryChanged()));
QObject::connect(m_themeComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(updateUI()));
QObject::connect(m_antialiasCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateUI()));
QObject::connect(m_openGLCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateUI()));
QObject::connect(m_zoomCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateUI()));
QObject::connect(m_scrollCheckBox, SIGNAL(toggled(bool)), this, SLOT(updateUI()));
QObject::connect(m_animatedComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(updateUI()));
QObject::connect(m_legendComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(updateUI()));
QObject::connect(m_templateComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(updateUI()));
}
void Window::createProxyWidgets()
{
m_themeComboBox = createThemeBox();
m_antialiasCheckBox = new QCheckBox(tr("Anti-aliasing"));
m_animatedComboBox = createAnimationBox();
m_legendComboBox = createLegendBox();
m_openGLCheckBox = new QCheckBox(tr("OpenGL"));
m_zoomCheckBox = new QCheckBox(tr("Zoom"));
m_scrollCheckBox = new QCheckBox(tr("Scroll"));
m_templateComboBox= createTempleteBox();
m_widgetHash["themeComboBox"] = m_scene->addWidget(m_themeComboBox);
m_widgetHash["antialiasCheckBox"] = m_scene->addWidget(m_antialiasCheckBox);
m_widgetHash["animatedComboBox"] = m_scene->addWidget(m_animatedComboBox);
m_widgetHash["legendComboBox"] = m_scene->addWidget(m_legendComboBox);
m_widgetHash["openGLCheckBox"] = m_scene->addWidget(m_openGLCheckBox);
m_widgetHash["themeLabel"] = m_scene->addWidget(new QLabel("Theme"));
m_widgetHash["animationsLabel"] = m_scene->addWidget(new QLabel("Animations"));
m_widgetHash["legendLabel"] = m_scene->addWidget(new QLabel("Legend"));
m_widgetHash["templateLabel"] = m_scene->addWidget(new QLabel("Chart template"));
m_widgetHash["templateComboBox"] = m_scene->addWidget(m_templateComboBox);
m_widgetHash["zoomCheckBox"] = m_scene->addWidget(m_zoomCheckBox);
m_widgetHash["scrollCheckBox"] = m_scene->addWidget(m_scrollCheckBox);
}
QComboBox* Window::createThemeBox()
{
QComboBox* themeComboBox = new ComboBox(this);
themeComboBox->addItem("Light", QChart::ChartThemeLight);
themeComboBox->addItem("Blue Cerulean", QChart::ChartThemeBlueCerulean);
themeComboBox->addItem("Dark", QChart::ChartThemeDark);
themeComboBox->addItem("Brown Sand", QChart::ChartThemeBrownSand);
themeComboBox->addItem("Blue NCS", QChart::ChartThemeBlueNcs);
themeComboBox->addItem("High Contrast", QChart::ChartThemeHighContrast);
themeComboBox->addItem("Blue Icy", QChart::ChartThemeBlueIcy);
return themeComboBox;
}
QComboBox* Window::createAnimationBox()
{
QComboBox* animationComboBox = new ComboBox(this);
animationComboBox->addItem("No Animations", QChart::NoAnimation);
animationComboBox->addItem("GridAxis Animations", QChart::GridAxisAnimations);
animationComboBox->addItem("Series Animations", QChart::SeriesAnimations);
animationComboBox->addItem("All Animations", QChart::AllAnimations);
return animationComboBox;
}
QComboBox* Window::createLegendBox()
{
QComboBox* legendComboBox = new ComboBox(this);
legendComboBox->addItem("No Legend ", 0);
legendComboBox->addItem("Legend Top", Qt::AlignTop);
legendComboBox->addItem("Legend Bottom", Qt::AlignBottom);
legendComboBox->addItem("Legend Left", Qt::AlignLeft);
legendComboBox->addItem("Legend Right", Qt::AlignRight);
return legendComboBox;
}
QComboBox* Window::createTempleteBox()
{
QComboBox* templateComboBox = new ComboBox(this);
templateComboBox->addItem("No Template", 0);
Charts::ChartList list = Charts::chartList();
QMultiMap<QString, Chart*> categoryMap;
foreach(Chart* chart, list) {
categoryMap.insertMulti(chart->category(), chart);
}
foreach(const QString& category, categoryMap.uniqueKeys()) {
templateComboBox->addItem(category, category);
}
return templateComboBox;
}
void Window::updateUI()
{
checkTemplate();
checkOpenGL();
checkTheme();
checkAnimationOptions();
checkLegend();
checkState();
}
void Window::checkLegend()
{
Qt::Alignment alignment(m_legendComboBox->itemData(m_legendComboBox->currentIndex()).toInt());
if (!alignment) {
foreach (QChart *chart, m_chartHash.keys()) {
chart->legend()->hide();
}
}
else {
foreach (QChart *chart, m_chartHash.keys()) {
chart->legend()->setAlignment(alignment);
chart->legend()->show();
}
}
}
void Window::checkOpenGL()
{
bool opengl = m_openGLCheckBox->isChecked();
bool isOpengl = qobject_cast<QGLWidget*>(m_view->viewport());
if ((isOpengl && !opengl) || (!isOpengl && opengl)) {
m_view->deleteLater();
m_view = new View(m_scene, m_form);
m_view->setViewport(!opengl ? new QWidget() : new QGLWidget());
setCentralWidget(m_view);
}
bool antialias = m_antialiasCheckBox->isChecked();
if (opengl)
m_view->setRenderHint(QPainter::HighQualityAntialiasing, antialias);
else
m_view->setRenderHint(QPainter::Antialiasing, antialias);
}
void Window::checkAnimationOptions()
{
QChart::AnimationOptions options(
m_animatedComboBox->itemData(m_animatedComboBox->currentIndex()).toInt());
if (!m_chartHash.isEmpty() && m_chartHash.keys().at(0)->animationOptions() != options) {
foreach (QChart *chart, m_chartHash.keys())
chart->setAnimationOptions(options);
}
}
void Window::checkState()
{
bool scroll = m_scrollCheckBox->isChecked();
if (m_state != ScrollState && scroll) {
m_state = ScrollState;
m_zoomCheckBox->setChecked(false);
}
else if (!scroll && m_state == ScrollState) {
m_state = NoState;
}
bool zoom = m_zoomCheckBox->isChecked();
if (m_state != ZoomState && zoom) {
m_state = ZoomState;
m_scrollCheckBox->setChecked(false);
}
else if (!zoom && m_state == ZoomState) {
m_state = NoState;
}
}
void Window::checkTemplate()
{
int index = m_templateComboBox->currentIndex();
if (m_template == index || index == 0)
return;
m_template = index;
QString category = m_templateComboBox->itemData(index).toString();
Charts::ChartList list = Charts::chartList();
QList<QChart*> qchartList = m_chartHash.keys();
foreach(QChart* qchart,qchartList){
for(int i = 0 ; i < m_baseLayout->count();++i)
{
if(m_baseLayout->itemAt(i)==qchart){
m_baseLayout->removeAt(i);
break;
}
}
}
m_chartHash.clear();
qDeleteAll(qchartList);
QChart* qchart(0);
int j=0;
for (int i = 0; i < list.size(); ++i) {
Chart* chart = list.at(i);
if (chart->category() == category && j < 9) {
qchart = list.at(i)->createChart(m_dataTable);
m_baseLayout->addItem(qchart, j / 3, j % 3);
m_chartHash[qchart] = j;
j++;
}
}
for (; j < 9; ++j) {
qchart = new QChart();
qchart->setTitle(tr("Empty"));
m_baseLayout->addItem(qchart, j / 3, j % 3);
m_chartHash[qchart] = j;
}
m_baseLayout->activate();
}
void Window::checkTheme()
{
QChart::ChartTheme theme = (QChart::ChartTheme) m_themeComboBox->itemData(
m_themeComboBox->currentIndex()).toInt();
foreach (QChart *chart, m_chartHash.keys())
chart->setTheme(theme);
QPalette pal = window()->palette();
if (theme == QChart::ChartThemeLight) {
pal.setColor(QPalette::Window, QRgb(0xf0f0f0));
pal.setColor(QPalette::WindowText, QRgb(0x404044));
}
else if (theme == QChart::ChartThemeDark) {
pal.setColor(QPalette::Window, QRgb(0x121218));
pal.setColor(QPalette::WindowText, QRgb(0xd6d6d6));
}
else if (theme == QChart::ChartThemeBlueCerulean) {
pal.setColor(QPalette::Window, QRgb(0x40434a));
pal.setColor(QPalette::WindowText, QRgb(0xd6d6d6));
}
else if (theme == QChart::ChartThemeBrownSand) {
pal.setColor(QPalette::Window, QRgb(0x9e8965));
pal.setColor(QPalette::WindowText, QRgb(0x404044));
}
else if (theme == QChart::ChartThemeBlueNcs) {
pal.setColor(QPalette::Window, QRgb(0x018bba));
pal.setColor(QPalette::WindowText, QRgb(0x404044));
}
else if (theme == QChart::ChartThemeHighContrast) {
pal.setColor(QPalette::Window, QRgb(0xffab03));
pal.setColor(QPalette::WindowText, QRgb(0x181818));
}
else if (theme == QChart::ChartThemeBlueIcy) {
pal.setColor(QPalette::Window, QRgb(0xcee7f0));
pal.setColor(QPalette::WindowText, QRgb(0x404044));
}
else {
pal.setColor(QPalette::Window, QRgb(0xf0f0f0));
pal.setColor(QPalette::WindowText, QRgb(0x404044));
}
foreach(QGraphicsProxyWidget* widget , m_widgetHash) {
widget->setPalette(pal);
}
m_view->setBackgroundBrush(pal.color((QPalette::Window)));
m_rubberBand->setPen(pal.color((QPalette::WindowText)));
}
void Window::mousePressEvent(QMouseEvent *event)
{
if (event->button() == Qt::LeftButton) {
m_origin = event->pos();
m_currentState = NoState;
foreach (QChart *chart, m_chartHash.keys()) {
QRectF geometryRect = chart->geometry();
QRectF plotArea = chart->plotArea();
plotArea.translate(geometryRect.topLeft());
if (plotArea.contains(m_origin)) {
m_currentState = m_state;
if (m_currentState == NoState && m_templateComboBox->currentIndex()==0) {
handleMenu(chart);
}
break;
}
}
if (m_currentState == ZoomState) {
m_rubberBand->setRect(QRectF(m_origin, QSize()));
m_rubberBand->setVisible(true);
}
event->accept();
}
if (event->button() == Qt::RightButton) {
m_origin = event->pos();
m_currentState = m_state;
}
}
void Window::mouseMoveEvent(QMouseEvent *event)
{
if ( m_currentState != NoState) {
foreach (QChart *chart, m_chartHash.keys()) {
QRectF geometryRect = chart->geometry();
QRectF plotArea = chart->plotArea();
plotArea.translate(geometryRect.topLeft());
if (plotArea.contains(m_origin)) {
if (m_currentState == ScrollState) {
QPointF delta = m_origin - event->pos();
chart->scroll(delta.x(), -delta.y());
}
if (m_currentState == ZoomState && plotArea.contains(event->pos())) {
m_rubberBand->setRect(QRectF(m_origin, event->pos()).normalized());
}
break;
}
}
if(m_currentState == ScrollState) m_origin = event->pos();
event->accept();
}
}
void Window::mouseReleaseEvent(QMouseEvent *event)
{
if (event->button() == Qt::LeftButton) {
if (m_currentState == ZoomState) {
m_rubberBand->setVisible(false);
foreach (QChart *chart, m_chartHash.keys()) {
QRectF geometryRect = chart->geometry();
QRectF plotArea = chart->plotArea();
plotArea.translate(geometryRect.topLeft());
if (plotArea.contains(m_origin)) {
QRectF rect = m_rubberBand->rect();
rect.translate(-geometryRect.topLeft());
chart->zoomIn(rect);
break;
}
}
}
m_currentState = NoState;
event->accept();
}
if (event->button() == Qt::RightButton) {
if (m_currentState == ZoomState) {
foreach (QChart *chart, m_chartHash.keys()) {
QRectF geometryRect = chart->geometry();
QRectF plotArea = chart->plotArea();
plotArea.translate(geometryRect.topLeft());
if (plotArea.contains(m_origin)) {
chart->zoomOut();
break;
}
}
}
}
}
void Window::comboBoxFocused(QComboBox *combobox)
{
foreach(QGraphicsProxyWidget* widget , m_widgetHash) {
if(widget->widget()==combobox)
widget->setZValue(2.0);
else
widget->setZValue(0.0);
}
}
void Window::handleMenu(QChart* qchart)
{
QAction *chosen = m_menu->exec(QCursor::pos());
if (chosen) {
Chart* chart = (Chart *) chosen->data().value<void *>();
int index = m_chartHash[qchart];
//not in 4.7.2 m_baseLayout->removeItem(qchart);
for(int i = 0 ; i < m_baseLayout->count();++i)
{
if(m_baseLayout->itemAt(i)==qchart){
m_baseLayout->removeAt(i);
break;
}
}
m_chartHash.remove(qchart);
QChart* newChart = chart->createChart(m_dataTable);
m_baseLayout->addItem(newChart, index / 3, index % 3);
m_chartHash[newChart] = index;
delete qchart;
updateUI();
}
}
QMenu* Window::createMenu()
{
Charts::ChartList list = Charts::chartList();
QMultiMap<QString, Chart*> categoryMap;
QMenu* result = new QMenu(this);
foreach(Chart* chart, list) {
categoryMap.insertMulti(chart->category(), chart);
}
foreach(const QString& category, categoryMap.uniqueKeys()) {
QMenu* menu(0);
QMultiMap<QString, Chart*> subCategoryMap;
if (category.isEmpty()) {
menu = result;
}
else {
menu = new QMenu(category, this);
result->addMenu(menu);
}
foreach(Chart* chart , categoryMap.values(category)) {
subCategoryMap.insert(chart->subCategory(), chart);
}
foreach(const QString& subCategory, subCategoryMap.uniqueKeys()) {
QMenu* subMenu(0);
if (subCategory.isEmpty()) {
subMenu = menu;
}
else {
subMenu = new QMenu(subCategory, this);
menu->addMenu(subMenu);
}
foreach(Chart* chart , subCategoryMap.values(subCategory)) {
createMenuAction(subMenu, QIcon(), chart->name(),
qVariantFromValue((void *) chart));
}
}
}
return result;
}
QAction* Window::createMenuAction(QMenu *menu, const QIcon &icon, const QString &text,
const QVariant &data)
{
QAction *action = menu->addAction(icon, text);
action->setCheckable(false);
action->setData(data);
return action;
}
void Window::handleGeometryChanged()
{
QSizeF size = m_baseLayout->sizeHint(Qt::MinimumSize);
m_view->scene()->setSceneRect(0, 0, this->width(), this->height());
m_view->setMinimumSize(size.toSize());
}