CODEWITHSUNDEEP
c++qt
testStackFlow
testStackFlow

Reputation: 49

Get resolution from multiple widgets

How do I get the resolution from multiple widgets inside a layout.

For example I have the following:

ui.horizontalLayout_2->addWidget(&test1);
ui.horizontalLayout->addWidget(&test2); 
ui.horizontalLayout->addWidget(&test3);
ui.horizontalLayout->addWidget(&test4);

Each of which is in a seperate window inside the layout.

I created this function not really understanding how to approach this problem which gives me the total resolution of the entire window.

void Widget::getScreenGeomerty()
{
    QScreen* screen = QGuiApplication::primaryScreen();
    QRect  screenGeometry = screen->geometry();
    int height = screenGeometry.height();
    int width = screenGeometry.width();

    qDebug() << "Screen height: " << height;
    qDebug() << "Screen width: " << width;
}

What is the correct way to go about doing this.

#include "GLWidget.h"

class TestRecorder : public QMainWindow
{
    Q_OBJECT
public:
    TestRecorder( QWidget *parent = Q_NULLPTR);
    ~TestRecorder();


private:
    Ui::TFMRecorderClass ui;
    GLWidget test1;
    GLWidget test2;
    GLWidget test3;
    GLWidget test4;
};

Upvotes: 1

Views: 54

Answers (1)

alteredinstance
alteredinstance

Reputation: 597

All QWidget-derived objects have height and width properties - Your test1, ... , test4 objects all are QWidget-derived.

Simply reference their members, just like you did with screenGeometry (also a QWidget) e.g.

test1->height(); //Y Resolution
test1->width();  //x Resolution

Here you can find the documentation on height and width

EDIT: To solve the issue of being unable to access height() & width(), forward declare the QGLWidget class in your .h file. Such as:

#include "GLWidget.h"

class QGLWidget;

class TestRecorder : public QMainWindow
{
    Q_OBJECT

// etc...

Upvotes: 1

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