Qt/ModelView/ComboBoxOfCheckBoxes
From ProgrammingExamples
< Qt
demo.cpp
#include <QApplication> #include "main.h" int main(int argc, char *argv[]) { QApplication app(argc, argv); MainWindow window; window.show(); return app.exec(); }
main.h
#ifndef MainWindow_H #define MainWindow_H #include <QMainWindow> #include <QStandardItemModel> #include "ui_main.h" class MainWindow : public QMainWindow, public Ui::MainWindow { Q_OBJECT public: MainWindow(QMainWindow *parent = 0); public slots: //void slot_changed(); void slot_changed(const QModelIndex&, const QModelIndex&); protected: QStandardItemModel* Model; QStandardItem* Item1; QStandardItem* Item2; std::vector<QStandardItem*> Items; }; #endif
main.cpp
#include <QtGui> #include <iostream> #include "main.h" MainWindow::MainWindow(QMainWindow* parent) : QMainWindow(parent) { setupUi(this); this->Model = new QStandardItemModel; this->Item1 = new QStandardItem; this->Item1->setText("test"); this->Item1->setFlags(Qt::ItemIsUserCheckable | Qt::ItemIsEnabled); this->Item1->setData(Qt::Unchecked, Qt::CheckStateRole); this->Item2 = new QStandardItem; this->Item2->setText("test2"); this->Item2->setFlags(Qt::ItemIsUserCheckable | Qt::ItemIsEnabled); this->Item2->setData(Qt::Unchecked, Qt::CheckStateRole); connect(this->Model, SIGNAL(dataChanged ( const QModelIndex&, const QModelIndex&)), this, SLOT(slot_changed(const QModelIndex&, const QModelIndex&))); this->Model->insertRow(0, this->Item1); this->Model->insertRow(1, this->Item2); this->Items.push_back(this->Item1); this->Items.push_back(this->Item2); this->comboBox->setModel(this->Model); std::cout << comboBox->model()->rowCount() << " rows after." << std::endl; } void MainWindow::slot_changed(const QModelIndex& topLeft, const QModelIndex& bottomRight) { //std::cout << "topLeft: " << topLeft.row() << std::endl; //std::cout << "bottomRight: " << bottomRight.row() << std::endl; std::cout << "Item " << topLeft.row() << " " << std::endl; QStandardItem* item = this->Items[topLeft.row()]; if(item->checkState() == Qt::Unchecked) { std::cout << "Unchecked!" << std::endl; } else if(item->checkState() == Qt::Checked) { std::cout << "Checked!" << std::endl; } }
main.ui
<?xml version="1.0" encoding="UTF-8"?> <ui version="4.0"> <class>MainWindow</class> <widget class="QMainWindow" name="MainWindow"> <property name="geometry"> <rect> <x>0</x> <y>0</y> <width>800</width> <height>600</height> </rect> </property> <property name="windowTitle"> <string>MainWindow</string> </property> <widget class="QWidget" name="centralwidget"> <widget class="QComboBox" name="comboBox"> <property name="geometry"> <rect> <x>240</x> <y>150</y> <width>211</width> <height>27</height> </rect> </property> <item> <property name="text"> <string>Item1</string> </property> </item> <item> <property name="text"> <string>Item2</string> </property> </item> </widget> </widget> <widget class="QMenuBar" name="menubar"> <property name="geometry"> <rect> <x>0</x> <y>0</y> <width>800</width> <height>25</height> </rect> </property> </widget> <widget class="QStatusBar" name="statusbar"/> </widget> <resources/> <connections/> </ui>
CMakeLists.txt
cmake_minimum_required(VERSION 2.6) PROJECT(ComboBoxOfCheckBoxes) FIND_PACKAGE(Qt4 REQUIRED) INCLUDE(${QT_USE_FILE}) include_directories(${include_directories} ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}) QT4_WRAP_UI(UISrcs main.ui) QT4_WRAP_CPP(MOCSrcs main.h) ADD_EXECUTABLE(ComboBoxOfCheckBoxes demo.cpp main.h main.cpp ${MOCSrcs} ${UISrcs}) TARGET_LINK_LIBRARIES(ComboBoxOfCheckBoxes ${QT_LIBRARIES})