embeddeddialog.cpp Example File

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  #include "embeddeddialog.h"
  #include "ui_embeddeddialog.h"

  #include <QStyleFactory>

  EmbeddedDialog::EmbeddedDialog(QWidget *parent)
      : QDialog(parent)
      , ui(new Ui::EmbeddedDialog)
  {
      ui->setupUi(this);
      ui->layoutDirection->setCurrentIndex(layoutDirection() != Qt::LeftToRight);

      foreach (QString styleName, QStyleFactory::keys()) {
          ui->style->addItem(styleName);
          if (style()->objectName().toLower() == styleName.toLower())
              ui->style->setCurrentIndex(ui->style->count() - 1);
      }

      connect(ui->layoutDirection, SIGNAL(activated(int)),
              this, SLOT(layoutDirectionChanged(int)));
      connect(ui->spacing, SIGNAL(valueChanged(int)),
              this, SLOT(spacingChanged(int)));
      connect(ui->fontComboBox, SIGNAL(currentFontChanged(QFont)),
              this, SLOT(fontChanged(QFont)));
      connect(ui->style, SIGNAL(activated(QString)),
              this, SLOT(styleChanged(QString)));
  }

  EmbeddedDialog::~EmbeddedDialog()
  {
      delete ui;
  }

  void EmbeddedDialog::layoutDirectionChanged(int index)
  {
      setLayoutDirection(index == 0 ? Qt::LeftToRight : Qt::RightToLeft);
  }

  void EmbeddedDialog::spacingChanged(int spacing)
  {
      layout()->setSpacing(spacing);
      adjustSize();
  }

  void EmbeddedDialog::fontChanged(const QFont &font)
  {
      setFont(font);
  }

  static void setStyleHelper(QWidget *widget, QStyle *style)
  {
      widget->setStyle(style);
      widget->setPalette(style->standardPalette());
      foreach (QObject *child, widget->children()) {
          if (QWidget *childWidget = qobject_cast<QWidget *>(child))
              setStyleHelper(childWidget, style);
      }
  }

  void EmbeddedDialog::styleChanged(const QString &styleName)
  {
      QStyle *style = QStyleFactory::create(styleName);
      if (style)
          setStyleHelper(this, style);
  }