Qt 5.9 | Qt Data Visualization | Custom Items Example | main.cpp Example File

Qt 5.9.9 Reference Documentation

# main.cpp Example File

customitems/main.cpp

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      ** 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.
      **
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      ** the Free Software Foundation and appearing in the file LICENSE.GPL3
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      #include "customitemgraph.h"

      #include <QtWidgets/QApplication>
      #include <QtWidgets/QWidget>
      #include <QtWidgets/QHBoxLayout>
      #include <QtWidgets/QVBoxLayout>
      #include <QtWidgets/QCheckBox>
      #include <QtWidgets/QLabel>
      #include <QtWidgets/QMessageBox>

      int main(int argc, char **argv)
      {
          QApplication app(argc, argv);
          Q3DSurface *graph = new Q3DSurface();
          QWidget *container = QWidget::createWindowContainer(graph);

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

          container->setMinimumSize(QSize(800, 600));
          container->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
          container->setFocusPolicy(Qt::StrongFocus);

          QWidget *widget = new QWidget;
          QHBoxLayout *hLayout = new QHBoxLayout(widget);
          QVBoxLayout *vLayoutLeft = new QVBoxLayout();
          vLayoutLeft->setAlignment(Qt::AlignTop);
          QVBoxLayout *vLayoutRight = new QVBoxLayout();
          vLayoutRight->setAlignment(Qt::AlignTop);
          hLayout->addLayout(vLayoutLeft);
          hLayout->addWidget(container, 1);
          hLayout->addLayout(vLayoutRight);

          QFont font = QFont("Century Gothic", 14);
          QLabel *label = new QLabel("Show:");
          font.setBold(true);
          label->setFont(font);
          vLayoutLeft->addWidget(label);

          font.setBold(false);
          QCheckBox *checkboxOne = new QCheckBox("Oil Rig 1");
          checkboxOne->setChecked(true);
          checkboxOne->setFont(font);
          vLayoutLeft->addWidget(checkboxOne);

          QCheckBox *checkboxTwo = new QCheckBox("Oil Rig 2");
          checkboxTwo->setChecked(true);
          checkboxTwo->setFont(font);
          vLayoutLeft->addWidget(checkboxTwo);

          QCheckBox *checkboxThree = new QCheckBox("Refinery");
          checkboxThree->setFont(font);
          vLayoutLeft->addWidget(checkboxThree);

          QLabel *label2 = new QLabel("Visuals:");
          font.setBold(true);
          label2->setFont(font);
          vLayoutRight->addWidget(label2);

          QCheckBox *checkboxOneRight = new QCheckBox("See-Through");
          font.setBold(false);
          checkboxOneRight->setFont(font);
          vLayoutRight->addWidget(checkboxOneRight);

          QCheckBox *checkboxTwoRight = new QCheckBox("Highlight Oil");
          checkboxTwoRight->setFont(font);
          vLayoutRight->addWidget(checkboxTwoRight);

          QCheckBox *checkboxThreeRight = new QCheckBox("Shadows");
          checkboxThreeRight->setFont(font);
          checkboxThreeRight->setChecked(true);
          vLayoutRight->addWidget(checkboxThreeRight);

          QLabel *label3 = new QLabel("Selection:");
          font.setBold(true);
          label3->setFont(font);
          vLayoutRight->addWidget(label3);

          QLabel *label4 = new QLabel("Nothing");
          font.setBold(false);
          font.setPointSize(11);
          label4->setFont(font);
          vLayoutRight->addWidget(label4);

          widget->setWindowTitle(QStringLiteral("Custom Items Example"));

          widget->show();

          CustomItemGraph *modifier = new CustomItemGraph(graph, label4);

          QObject::connect(checkboxOne, &QCheckBox::stateChanged,
                           modifier, &CustomItemGraph::toggleItemOne);
          QObject::connect(checkboxTwo, &QCheckBox::stateChanged,
                           modifier, &CustomItemGraph::toggleItemTwo);
          QObject::connect(checkboxThree, &QCheckBox::stateChanged,
                           modifier, &CustomItemGraph::toggleItemThree);

          QObject::connect(checkboxOneRight, &QCheckBox::stateChanged,
                           modifier, &CustomItemGraph::toggleSeeThrough);
          QObject::connect(checkboxTwoRight, &QCheckBox::stateChanged,
                           modifier, &CustomItemGraph::toggleOilHighlight);
          QObject::connect(checkboxThreeRight, &QCheckBox::stateChanged,
                           modifier, &CustomItemGraph::toggleShadows);

          return app.exec();
      }