Qt 5.7 | Qt Data Visualization | Bars Example | main.cpp Example File

Qt 5.7.1 Reference Documentation

# main.cpp Example File

bars/main.cpp

      /****************************************************************************
      **
      ** Copyright (C) 2016 The Qt Company Ltd.
      ** Contact: https://www.qt.io/licensing/
      **
      ** This file is part of the Qt Data Visualization module of the Qt Toolkit.
      **
      ** $QT_BEGIN_LICENSE:GPL$
      ** Commercial License Usage
      ** Licensees holding valid commercial Qt licenses may use this file in
      ** accordance with the commercial license agreement provided with the
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      ** information use the contact form at https://www.qt.io/contact-us.
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      ** GNU General Public License Usage
      ** Alternatively, this file may be used under the terms of the GNU
      ** General Public License version 3 or (at your option) any later version
      ** approved by the KDE Free Qt Foundation. The licenses are as published by
      ** the Free Software Foundation and appearing in the file LICENSE.GPL3
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      #include "graphmodifier.h"

      #include <QtWidgets/QApplication>
      #include <QtWidgets/QWidget>
      #include <QtWidgets/QHBoxLayout>
      #include <QtWidgets/QVBoxLayout>
      #include <QtWidgets/QPushButton>
      #include <QtWidgets/QCheckBox>
      #include <QtWidgets/QSlider>
      #include <QtWidgets/QFontComboBox>
      #include <QtWidgets/QLabel>
      #include <QtWidgets/QMessageBox>
      #include <QtGui/QScreen>
      #include <QtGui/QFontDatabase>

      int main(int argc, char **argv)
      {
          QApplication app(argc, argv);
          Q3DBars *widgetgraph = new Q3DBars();
          QWidget *container = QWidget::createWindowContainer(widgetgraph);

          if (!widgetgraph->hasContext()) {
              QMessageBox msgBox;
              msgBox.setText("Couldn't initialize the OpenGL context.");
              msgBox.exec();
              return -1;
          }

          QSize screenSize = widgetgraph->screen()->size();
          container->setMinimumSize(QSize(screenSize.width() / 2, screenSize.height() / 1.5));
          container->setMaximumSize(screenSize);
          container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
          container->setFocusPolicy(Qt::StrongFocus);

          QWidget *widget = new QWidget;
          QHBoxLayout *hLayout = new QHBoxLayout(widget);
          QVBoxLayout *vLayout = new QVBoxLayout();
          hLayout->addWidget(container, 1);
          hLayout->addLayout(vLayout);

          widget->setWindowTitle(QStringLiteral("Average temperatures in Oulu and Helsinki, Finland (2006-2013)"));

          QComboBox *themeList = new QComboBox(widget);
          themeList->addItem(QStringLiteral("Qt"));
          themeList->addItem(QStringLiteral("Primary Colors"));
          themeList->addItem(QStringLiteral("Digia"));
          themeList->addItem(QStringLiteral("Stone Moss"));
          themeList->addItem(QStringLiteral("Army Blue"));
          themeList->addItem(QStringLiteral("Retro"));
          themeList->addItem(QStringLiteral("Ebony"));
          themeList->addItem(QStringLiteral("Isabelle"));
          themeList->setCurrentIndex(0);

          QPushButton *labelButton = new QPushButton(widget);
          labelButton->setText(QStringLiteral("Change label style"));

          QCheckBox *smoothCheckBox = new QCheckBox(widget);
          smoothCheckBox->setText(QStringLiteral("Smooth bars"));
          smoothCheckBox->setChecked(false);

          QComboBox *barStyleList = new QComboBox(widget);
          barStyleList->addItem(QStringLiteral("Bar"), int(QAbstract3DSeries::MeshBar));
          barStyleList->addItem(QStringLiteral("Pyramid"), int(QAbstract3DSeries::MeshPyramid));
          barStyleList->addItem(QStringLiteral("Cone"), int(QAbstract3DSeries::MeshCone));
          barStyleList->addItem(QStringLiteral("Cylinder"), int(QAbstract3DSeries::MeshCylinder));
          barStyleList->addItem(QStringLiteral("Bevel bar"), int(QAbstract3DSeries::MeshBevelBar));
          barStyleList->addItem(QStringLiteral("Sphere"), int(QAbstract3DSeries::MeshSphere));
          barStyleList->setCurrentIndex(4);

          QPushButton *cameraButton = new QPushButton(widget);
          cameraButton->setText(QStringLiteral("Change camera preset"));

          QPushButton *zoomToSelectedButton = new QPushButton(widget);
          zoomToSelectedButton->setText(QStringLiteral("Zoom to selected bar"));

          QComboBox *selectionModeList = new QComboBox(widget);
          selectionModeList->addItem(QStringLiteral("None"),
                                     int(QAbstract3DGraph::SelectionNone));
          selectionModeList->addItem(QStringLiteral("Bar"),
                                     int(QAbstract3DGraph::SelectionItem));
          selectionModeList->addItem(QStringLiteral("Row"),
                                     int(QAbstract3DGraph::SelectionRow));
          selectionModeList->addItem(QStringLiteral("Bar and Row"),
                                     int(QAbstract3DGraph::SelectionItemAndRow));
          selectionModeList->addItem(QStringLiteral("Column"),
                                     int(QAbstract3DGraph::SelectionColumn));
          selectionModeList->addItem(QStringLiteral("Bar and Column"),
                                     int(QAbstract3DGraph::SelectionItemAndColumn));
          selectionModeList->addItem(QStringLiteral("Row and Column"),
                                     int(QAbstract3DGraph::SelectionRowAndColumn));
          selectionModeList->addItem(QStringLiteral("Bar, Row and Column"),
                                     int(QAbstract3DGraph::SelectionItemRowAndColumn));
          selectionModeList->addItem(QStringLiteral("Slice into Row"),
                                     int(QAbstract3DGraph::SelectionSlice | QAbstract3DGraph::SelectionRow));
          selectionModeList->addItem(QStringLiteral("Slice into Row and Item"),
                                     int(QAbstract3DGraph::SelectionSlice | QAbstract3DGraph::SelectionItemAndRow));
          selectionModeList->addItem(QStringLiteral("Slice into Column"),
                                     int(QAbstract3DGraph::SelectionSlice | QAbstract3DGraph::SelectionColumn));
          selectionModeList->addItem(QStringLiteral("Slice into Column and Item"),
                                     int(QAbstract3DGraph::SelectionSlice | QAbstract3DGraph::SelectionItemAndColumn));
          selectionModeList->addItem(QStringLiteral("Multi: Bar, Row, Col"),
                                     int(QAbstract3DGraph::SelectionItemRowAndColumn
                                         | QAbstract3DGraph::SelectionMultiSeries));
          selectionModeList->addItem(QStringLiteral("Multi, Slice: Row, Item"),
                                     int(QAbstract3DGraph::SelectionSlice | QAbstract3DGraph::SelectionItemAndRow
                                         | QAbstract3DGraph::SelectionMultiSeries));
          selectionModeList->addItem(QStringLiteral("Multi, Slice: Col, Item"),
                                     int(QAbstract3DGraph::SelectionSlice | QAbstract3DGraph::SelectionItemAndColumn
                                         | QAbstract3DGraph::SelectionMultiSeries));
          selectionModeList->setCurrentIndex(1);

          QCheckBox *backgroundCheckBox = new QCheckBox(widget);
          backgroundCheckBox->setText(QStringLiteral("Show background"));
          backgroundCheckBox->setChecked(false);

          QCheckBox *gridCheckBox = new QCheckBox(widget);
          gridCheckBox->setText(QStringLiteral("Show grid"));
          gridCheckBox->setChecked(true);

          QCheckBox *seriesCheckBox = new QCheckBox(widget);
          seriesCheckBox->setText(QStringLiteral("Show second series"));
          seriesCheckBox->setChecked(false);

          QCheckBox *reverseValueAxisCheckBox = new QCheckBox(widget);
          reverseValueAxisCheckBox->setText(QStringLiteral("Reverse value axis"));
          reverseValueAxisCheckBox->setChecked(false);

          QCheckBox *reflectionCheckBox = new QCheckBox(widget);
          reflectionCheckBox->setText(QStringLiteral("Show reflections"));
          reflectionCheckBox->setChecked(false);

          QSlider *rotationSliderX = new QSlider(Qt::Horizontal, widget);
          rotationSliderX->setTickInterval(30);
          rotationSliderX->setTickPosition(QSlider::TicksBelow);
          rotationSliderX->setMinimum(-180);
          rotationSliderX->setValue(0);
          rotationSliderX->setMaximum(180);
          QSlider *rotationSliderY = new QSlider(Qt::Horizontal, widget);
          rotationSliderY->setTickInterval(15);
          rotationSliderY->setTickPosition(QSlider::TicksAbove);
          rotationSliderY->setMinimum(-90);
          rotationSliderY->setValue(0);
          rotationSliderY->setMaximum(90);

          QSlider *fontSizeSlider = new QSlider(Qt::Horizontal, widget);
          fontSizeSlider->setTickInterval(10);
          fontSizeSlider->setTickPosition(QSlider::TicksBelow);
          fontSizeSlider->setMinimum(1);
          fontSizeSlider->setValue(30);
          fontSizeSlider->setMaximum(100);

          QFontComboBox *fontList = new QFontComboBox(widget);
          fontList->setCurrentFont(QFont("Times New Roman"));

          QComboBox *shadowQuality = new QComboBox(widget);
          shadowQuality->addItem(QStringLiteral("None"));
          shadowQuality->addItem(QStringLiteral("Low"));
          shadowQuality->addItem(QStringLiteral("Medium"));
          shadowQuality->addItem(QStringLiteral("High"));
          shadowQuality->addItem(QStringLiteral("Low Soft"));
          shadowQuality->addItem(QStringLiteral("Medium Soft"));
          shadowQuality->addItem(QStringLiteral("High Soft"));
          shadowQuality->setCurrentIndex(5);

          QComboBox *rangeList = new QComboBox(widget);
          rangeList->addItem(QStringLiteral("2006"));
          rangeList->addItem(QStringLiteral("2007"));
          rangeList->addItem(QStringLiteral("2008"));
          rangeList->addItem(QStringLiteral("2009"));
          rangeList->addItem(QStringLiteral("2010"));
          rangeList->addItem(QStringLiteral("2011"));
          rangeList->addItem(QStringLiteral("2012"));
          rangeList->addItem(QStringLiteral("2013"));
          rangeList->addItem(QStringLiteral("All"));
          rangeList->setCurrentIndex(8);

          QCheckBox *axisTitlesVisibleCB = new QCheckBox(widget);
          axisTitlesVisibleCB->setText(QStringLiteral("Axis titles visible"));
          axisTitlesVisibleCB->setChecked(true);

          QCheckBox *axisTitlesFixedCB = new QCheckBox(widget);
          axisTitlesFixedCB->setText(QStringLiteral("Axis titles fixed"));
          axisTitlesFixedCB->setChecked(true);

          QSlider *axisLabelRotationSlider = new QSlider(Qt::Horizontal, widget);
          axisLabelRotationSlider->setTickInterval(10);
          axisLabelRotationSlider->setTickPosition(QSlider::TicksBelow);
          axisLabelRotationSlider->setMinimum(0);
          axisLabelRotationSlider->setValue(30);
          axisLabelRotationSlider->setMaximum(90);

          vLayout->addWidget(new QLabel(QStringLiteral("Rotate horizontally")));
          vLayout->addWidget(rotationSliderX, 0, Qt::AlignTop);
          vLayout->addWidget(new QLabel(QStringLiteral("Rotate vertically")));
          vLayout->addWidget(rotationSliderY, 0, Qt::AlignTop);
          vLayout->addWidget(labelButton, 0, Qt::AlignTop);
          vLayout->addWidget(cameraButton, 0, Qt::AlignTop);
          vLayout->addWidget(zoomToSelectedButton, 0, Qt::AlignTop);
          vLayout->addWidget(backgroundCheckBox);
          vLayout->addWidget(gridCheckBox);
          vLayout->addWidget(smoothCheckBox);
          vLayout->addWidget(reflectionCheckBox);
          vLayout->addWidget(seriesCheckBox);
          vLayout->addWidget(reverseValueAxisCheckBox);
          vLayout->addWidget(axisTitlesVisibleCB);
          vLayout->addWidget(axisTitlesFixedCB);
          vLayout->addWidget(new QLabel(QStringLiteral("Show year")));
          vLayout->addWidget(rangeList);
          vLayout->addWidget(new QLabel(QStringLiteral("Change bar style")));
          vLayout->addWidget(barStyleList);
          vLayout->addWidget(new QLabel(QStringLiteral("Change selection mode")));
          vLayout->addWidget(selectionModeList);
          vLayout->addWidget(new QLabel(QStringLiteral("Change theme")));
          vLayout->addWidget(themeList);
          vLayout->addWidget(new QLabel(QStringLiteral("Adjust shadow quality")));
          vLayout->addWidget(shadowQuality);
          vLayout->addWidget(new QLabel(QStringLiteral("Change font")));
          vLayout->addWidget(fontList);
          vLayout->addWidget(new QLabel(QStringLiteral("Adjust font size")));
          vLayout->addWidget(fontSizeSlider);
          vLayout->addWidget(new QLabel(QStringLiteral("Axis label rotation")));
          vLayout->addWidget(axisLabelRotationSlider, 1, Qt::AlignTop);

          GraphModifier *modifier = new GraphModifier(widgetgraph);

          QObject::connect(rotationSliderX, &QSlider::valueChanged, modifier, &GraphModifier::rotateX);
          QObject::connect(rotationSliderY, &QSlider::valueChanged, modifier, &GraphModifier::rotateY);

          QObject::connect(labelButton, &QPushButton::clicked, modifier,
                           &GraphModifier::changeLabelBackground);
          QObject::connect(cameraButton, &QPushButton::clicked, modifier,
                           &GraphModifier::changePresetCamera);
          QObject::connect(zoomToSelectedButton, &QPushButton::clicked, modifier,
                           &GraphModifier::zoomToSelectedBar);

          QObject::connect(backgroundCheckBox, &QCheckBox::stateChanged, modifier,
                           &GraphModifier::setBackgroundEnabled);
          QObject::connect(gridCheckBox, &QCheckBox::stateChanged, modifier,
                           &GraphModifier::setGridEnabled);
          QObject::connect(smoothCheckBox, &QCheckBox::stateChanged, modifier,
                           &GraphModifier::setSmoothBars);
          QObject::connect(seriesCheckBox, &QCheckBox::stateChanged, modifier,
                           &GraphModifier::setSeriesVisibility);
          QObject::connect(reverseValueAxisCheckBox, &QCheckBox::stateChanged, modifier,
                           &GraphModifier::setReverseValueAxis);
          QObject::connect(reflectionCheckBox, &QCheckBox::stateChanged, modifier,
                           &GraphModifier::setReflection);

          QObject::connect(modifier, &GraphModifier::backgroundEnabledChanged,
                           backgroundCheckBox, &QCheckBox::setChecked);
          QObject::connect(modifier, &GraphModifier::gridEnabledChanged,
                           gridCheckBox, &QCheckBox::setChecked);

          QObject::connect(rangeList, SIGNAL(currentIndexChanged(int)), modifier,
                           SLOT(changeRange(int)));

          QObject::connect(barStyleList, SIGNAL(currentIndexChanged(int)), modifier,
                           SLOT(changeStyle(int)));

          QObject::connect(selectionModeList, SIGNAL(currentIndexChanged(int)), modifier,
                           SLOT(changeSelectionMode(int)));

          QObject::connect(themeList, SIGNAL(currentIndexChanged(int)), modifier,
                           SLOT(changeTheme(int)));

          QObject::connect(shadowQuality, SIGNAL(currentIndexChanged(int)), modifier,
                           SLOT(changeShadowQuality(int)));

          QObject::connect(modifier, &GraphModifier::shadowQualityChanged, shadowQuality,
                           &QComboBox::setCurrentIndex);
          QObject::connect(widgetgraph, &Q3DBars::shadowQualityChanged, modifier,
                           &GraphModifier::shadowQualityUpdatedByVisual);

          QObject::connect(fontSizeSlider, &QSlider::valueChanged, modifier,
                           &GraphModifier::changeFontSize);
          QObject::connect(fontList, &QFontComboBox::currentFontChanged, modifier,
                           &GraphModifier::changeFont);

          QObject::connect(modifier, &GraphModifier::fontSizeChanged, fontSizeSlider,
                           &QSlider::setValue);
          QObject::connect(modifier, &GraphModifier::fontChanged, fontList,
                           &QFontComboBox::setCurrentFont);

          QObject::connect(axisTitlesVisibleCB, &QCheckBox::stateChanged, modifier,
                           &GraphModifier::setAxisTitleVisibility);
          QObject::connect(axisTitlesFixedCB, &QCheckBox::stateChanged, modifier,
                           &GraphModifier::setAxisTitleFixed);
          QObject::connect(axisLabelRotationSlider, &QSlider::valueChanged, modifier,
                           &GraphModifier::changeLabelRotation);
          widget->show();
          return app.exec();
      }