Raspbian C/C++ : fertige OpenFileDialog oder SaveFileDialog Komponenten

[schorsch_76]

Und hier ist der Code

main.cpp

#include <QApplication>
#include <QPushButton>

#include <QWidget>
#include <QFileDialog>

#include <iostream>

class Window : public QWidget
{
	Q_OBJECT
public:
	explicit Window(QWidget *parent = 0);

private slots:
	void slotButtonClicked();
	
private:
	QPushButton *m_button;
};

Window::Window(QWidget *parent)
	: QWidget(parent)
{
	// Set size of the window
	setFixedSize(100, 50);
 
	// Create and position the button
	m_button = new QPushButton("Hello World", this);
	m_button->setGeometry(10, 10, 80, 30);
 
	connect(m_button, SIGNAL (clicked()), this, SLOT (slotButtonClicked()));
}

void Window::slotButtonClicked()
{
	QString fname = QFileDialog::getOpenFileName(
		this,
		tr("Open File"),
		"/home", "");
	std::cout << fname.toUtf8().constData() << std::endl;
}

#include "main.moc"

int main(int argc, char **argv)
{
 QApplication app (argc, argv);
 
 Window wnd;
 wnd.show();
 
 return app.exec();
}

CMakeLists.txt

cmake_minimum_required(VERSION 2.8.11)

PROJECT(test C CXX)

set(CMAKE_AUTOMOC ON)
set(CMAKE_INCLUDE_CURRENT_DIR ON)

find_package(Qt5Widgets  REQUIRED)

include_directories(${Qt5Widgets_INCLUDE_DIRS})

SET(SRCS
	main.cpp
)

SET(LIBS
  ${Qt5Widgets_LIBRARIES}
)


# Executable
ADD_EXECUTABLE(qt-test	${SRCS} )

# Linking
TARGET_LINK_LIBRARIES(qt-test ${LIBS})

Dateisystem schaut so aus:

georg@xps:/tmp$ tree qttest/
qttest/
├── CMakeLists.txt
└── main.cpp

0 directories, 2 files

Bauen

georg@xps:/tmp$ cd qttest
georg@xps:/tmp/qttest$ mkdir build
georg@xps:/tmp/qttest$ cd build/
georg@xps:/tmp/qttest/build$ cmake ..
-- The C compiler identification is GNU 5.3.1
-- The CXX compiler identification is GNU 5.3.1
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /usr/bin/c++
-- Check for working CXX compiler: /usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Configuring done
-- Generating done
-- Build files have been written to: /tmp/qttest/build
georg@xps:/tmp/qttest/build$ make
Scanning dependencies of target qt-test_automoc
[ 25%] Automatic moc for target qt-test
Generating main.moc
[ 25%] Built target qt-test_automoc
Scanning dependencies of target qt-test
[ 50%] Building CXX object CMakeFiles/qt-test.dir/main.cpp.o
[ 75%] Building CXX object CMakeFiles/qt-test.dir/qt-test_automoc.cpp.o
[100%] Linking CXX executable qt-test
[100%] Built target qt-test
georg@xps:/tmp/qttest/build$

AUsführen:

georg@xps:/tmp/qttest/build$ ./qt-test

- - - Aktualisiert - - -

Du must auch nicht die IDE nutzen. Ich nutze Emacs und cmake. cmake weil diese makefiles leicht zu schreiben sind und die Makros die Libs und Includes leicht finden.