How to keep buttons close to each other (horizontally) in Qt widget?
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03-07-2021 - |
سؤال
QGridLayout *layout = new QGridLayout ();
centralWidget->setLayout (layout);
layout->addWidget (refresh, 0, 0);
layout->addWidget (zoomIn, 1, 0);
layout->addWidget (zoomOut, 1, 1);
layout->addWidget (panLeft, 2, 0);
layout->addWidget (panRight, 2, 1);
layout->addWidget (panTop, 3, 0);
layout->addWidget (panBottom, 3, 1);
layout->addWidget (findInfo, 4, 0);
layout->addWidget (textEdit, 5, 0);
window->setCentralWidget (centralWidget);
المحلول
I think we need some more context. I took your code and wrapped it into the following complete sample application:
#include <QGridLayout>
#include <QPushButton>
#include <QTextEdit>
#include <QApplication>
#include <QMainWindow>
int main(int argc, char ** argv) {
QApplication app( argc, argv );
QMainWindow win;
QWidget* centralWidget = new QWidget(&win);
QPushButton* refresh = new QPushButton("Start R");
QPushButton* zoomIn = new QPushButton("Zoom in");
QPushButton* zoomOut = new QPushButton("Zoom out");
QPushButton* panLeft = new QPushButton("Left");
QPushButton* panRight = new QPushButton("Right");
QPushButton* panTop = new QPushButton("Top");
QPushButton* panBottom = new QPushButton("Bottom");
QPushButton* findInfo = new QPushButton("Find Info");
QTextEdit* textEdit = new QTextEdit("Vehicle Info. Will be shown here.");
///////////////////////////// Your Code
QGridLayout *layout = new QGridLayout ();
centralWidget->setLayout (layout);
layout->addWidget (refresh, 0, 0);
layout->addWidget (zoomIn, 1, 0);
layout->addWidget (zoomOut, 1, 1);
layout->addWidget (panLeft, 2, 0);
layout->addWidget (panRight, 2, 1);
layout->addWidget (panTop, 3, 0);
layout->addWidget (panBottom, 3, 1);
layout->addWidget (findInfo, 4, 0);
layout->addWidget (textEdit, 5, 0);
window->setCentralWidget (centralWidget);
///////////////////////////// End your code
win.show();
app.connect( &app, SIGNAL( lastWindowClosed() ), &app, SLOT( quit() ) );
return app.exec();
}
This results in the following layout:
It looks like you have added some size constraints on the buttons, since they all have the same size in your screenshot (besides the Start button).
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