Qt/Widgets/FileDialog
From ProgrammingExamples
< Qt
FileDialog.cpp
#include <QApplication> #include "form.h" int main(int argc, char *argv[]) { QApplication app(argc, argv); MainWindow window; window.show(); return app.exec(); }
form.cpp
#include <QtGui> #include "form.h" #include <iostream> #include <string> #include <QFileDialog> #include <QString> MainWindow::MainWindow(QMainWindow* parent) : QMainWindow(parent) { ui.setupUi(this); connect( this->ui.btnSave, SIGNAL( clicked() ), this, SLOT(btnSave_clicked()) ); connect( this->ui.btnOpen, SIGNAL( clicked() ), this, SLOT(btnOpen_clicked()) ); } void MainWindow::btnOpen_clicked() { //get a filename to open QString fileName = QFileDialog::getOpenFileName(this, tr("Open Image"), "/home/doriad", tr("Image Files (*.png *.jpg *.bmp)")); std::cout << "Got filename: " << fileName.toStdString() << std::endl; } void MainWindow::btnSave_clicked() { //set a filename to save QString fileName = QFileDialog::getSaveFileName(this, tr("Open Image"), "/home/doriad", tr("Image Files (*.png *.jpg *.bmp)")); std::cout << "Set filename: " << fileName.toStdString() << std::endl; }
form.h
#ifndef CALCULATORFORM_H #define CALCULATORFORM_H #include <QMainWindow> #include "ui_main.h" class MainWindow : public QMainWindow { Q_OBJECT public: MainWindow(QMainWindow *parent = 0); private slots: void btnSave_clicked(); void btnOpen_clicked(); private: Ui::MainWindow ui; }; #endif
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="QPushButton" name="btnSave"> <property name="geometry"> <rect> <x>250</x> <y>290</y> <width>91</width> <height>28</height> </rect> </property> <property name="text"> <string>Save</string> </property> </widget> <widget class="QPushButton" name="btnOpen"> <property name="geometry"> <rect> <x>250</x> <y>190</y> <width>91</width> <height>27</height> </rect> </property> <property name="text"> <string>Open</string> </property> </widget> </widget> <widget class="QMenuBar" name="menubar"> <property name="geometry"> <rect> <x>0</x> <y>0</y> <width>800</width> <height>24</height> </rect> </property> </widget> <widget class="QStatusBar" name="statusbar"/> </widget> <resources/> <connections/> </ui>
CMakeLists.txt
cmake_minimum_required(VERSION 2.6) PROJECT(FileDialog) 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 form.h) ADD_EXECUTABLE(FileDialog FileDialog.cpp form.cpp ${MOCSrcs} ${UISrcs}) TARGET_LINK_LIBRARIES(FileDialog ${QT_LIBRARIES})