Custom widget

[wysota]

Could you provide a minimal compilable example reproducing the problem?

[zorro68]

I have been clean the programm.....

Here you are...

[wysota]

You didn't add the splitter into the widget's layout.

[zorro68]

I have just change the code of my custom widget constructor with (I think is that you are telling me):

editor1 = new QTextEdit;
    editor2 = new QTextEdit;
	editor3 = new QTextEdit;
    splitter = new QSplitter (Qt::Horizontal);//--->change
	splitter->addWidget(editor1);
	splitter->addWidget(editor2);
	splitter->addWidget(editor3);
	QVBoxLayout *vbox = new QVBoxLayout;     //new
	vbox->addWidget(splitter);                         //new
	this->setLayout(vbox);                               //new

editor1 = new QTextEdit;
    editor2 = new QTextEdit;
	editor3 = new QTextEdit;
    splitter = new QSplitter (Qt::Horizontal);//--->change
	splitter->addWidget(editor1);
	splitter->addWidget(editor2);
	splitter->addWidget(editor3);
	QVBoxLayout *vbox = new QVBoxLayout;     //new
	vbox->addWidget(splitter);                         //new
	this->setLayout(vbox);                               //new

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And the box is bigger but only shows one white box (text editor) and can't do anything in it (can't write....), and the box do not resize when i resize the mainwindow.

[wysota]

For me it seems your class is completely broken.

You should implement it like so:

#include <QtGui>
 
class X : public QSplitter {
public:
  X() : QSplitter(Qt::Horizontal){
    addWidget(new QTextEdit);
    addWidget(new QTextEdit);
    addWidget(new QTextEdit);
  }
 
};
 
int main(int argc, char **argv){
  QApplication app(argc, argv);
  X edit;
  edit.show();
  return app.exec();
}

#include <QtGui>

class X : public QSplitter {
public:
  X() : QSplitter(Qt::Horizontal){
    addWidget(new QTextEdit);
    addWidget(new QTextEdit);
    addWidget(new QTextEdit);
  }

};

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

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