initial size of widgets in a QSplitter

[momesana]

QSplitter::setSizes is a way to affect to initial sizes of each widget in the QSplitter. Next is a modified version of your code where the initial sizes are 100, 150 and 200 pixels.

If QSplitter::setSizes fails then you might want to check what are the original sizes of each widget by using QSplitter::sizes and if the original sizes are 0 then you are setting sizes too early in the construction phase!

#include <QtGui>
#include <QList>
 
int main(int argc, char** argv)
{
  QApplication app(argc, argv);
 
  QSplitter* splitter = new QSplitter(Qt::Vertical);
  for (int i = 0; i < 3; ++i) {
    QTextEdit* te = new QTextEdit("Text Edit nr. " + QString::number(i));
    splitter->addWidget(te);
    if (i % 2 == 0)
        te->resize(te->sizeHint().width(), te->fontMetrics().height() * 2);
  }
 
  // Set the initial sizes for QSplitter widgets
  QList<int> sizes;
  sizes << 100 << 150 << 200;
  splitter->setSizes(sizes);
 
  QMainWindow mw;
  mw.setCentralWidget(splitter);
  mw.show();
  return app.exec();
}

#include <QtGui>
#include <QList>

int main(int argc, char** argv)
{
  QApplication app(argc, argv);

  QSplitter* splitter = new QSplitter(Qt::Vertical);
  for (int i = 0; i < 3; ++i) {
    QTextEdit* te = new QTextEdit("Text Edit nr. " + QString::number(i));
    splitter->addWidget(te);
    if (i % 2 == 0)
        te->resize(te->sizeHint().width(), te->fontMetrics().height() * 2);
  }

  // Set the initial sizes for QSplitter widgets
  QList<int> sizes;
  sizes << 100 << 150 << 200;
  splitter->setSizes(sizes);

  QMainWindow mw;
  mw.setCentralWidget(splitter);
  mw.show();
  return app.exec();
}

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Needless to say, setSizes was the first thing I tried back then ;-). The stuff didn't work as you can see with this code:

#include <QtGui>
 
int main(int argc, char** argv)
{
  QApplication app(argc, argv);
 
  QList<int> sizes;
  QSplitter* splitter = new QSplitter(Qt::Vertical);
  for (int i = 0; i < 3; ++i) {
    QTextEdit* te = new QTextEdit("Text Edit nr. " + QString::number(i));
    splitter->addWidget(te);
    sizes << ((i % 2 == 0) ? te->fontMetrics().height() * 2 : te->sizeHint().height());
  }
  // Set the initial sizes for QSplitter widgets
  splitter->setSizes(sizes);
 
  QMainWindow mw;
  mw.setCentralWidget(splitter);
  mw.show();
  return app.exec();
}

#include <QtGui>
 
int main(int argc, char** argv)
{
  QApplication app(argc, argv);
 
  QList<int> sizes;
  QSplitter* splitter = new QSplitter(Qt::Vertical);
  for (int i = 0; i < 3; ++i) {
    QTextEdit* te = new QTextEdit("Text Edit nr. " + QString::number(i));
    splitter->addWidget(te);
    sizes << ((i % 2 == 0) ? te->fontMetrics().height() * 2 : te->sizeHint().height());
  }
  // Set the initial sizes for QSplitter widgets
  splitter->setSizes(sizes);
  
  QMainWindow mw;
  mw.setCentralWidget(splitter);
  mw.show();
  return app.exec();
}

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Does anyone have any ideas?

Thanx in advance

P.s. @tsp: The QtGui module includes QtCore which in turns includes QtList. Thus there is no need for that headerfile to be included in the example you provided.

[olzzen]

Did you solve it? If yes, please post a small example.

Regards.