Long live Qt 4.5!

1 files changed, 97 insertions, 0 deletions

diff --git a/doc/src/snippets/code/src_gui_kernel_qwidget.cpp b/doc/src/snippets/code/src_gui_kernel_qwidget.cpp
new file mode 100644
index 0000000000..4285eddc75
--- /dev/null
+++ b/doc/src/snippets/code/src_gui_kernel_qwidget.cpp
@@ -0,0 +1,97 @@
+//! [0]
+w->setWindowState(w->windowState() ^ Qt::WindowFullScreen);
+//! [0]
+
+
+//! [1]
+w->setWindowState(w->windowState() & ~Qt::WindowMinimized | Qt::WindowActive);
+//! [1]
+
+
+//! [2]
+width = baseSize().width() + i * sizeIncrement().width();
+height = baseSize().height() + j * sizeIncrement().height();
+//! [2]
+
+
+//! [3]
+aWidget->window()->setWindowTitle("New Window Title");
+//! [3]
+
+
+//! [4]
+QFont font("Helvetica", 12, QFont::Bold);
+setFont(font);
+//! [4]
+
+
+//! [5]
+QFont font;
+font.setBold(false);
+setFont(font);
+//! [5]
+
+
+//! [6]
+setCursor(Qt::IBeamCursor);
+//! [6]
+
+
+//! [7]
+QPixmap pixmap(widget->size());
+widget->render(&pixmap);
+//! [7]
+
+
+//! [8]
+QPainter painter(this);
+...
+painter.end();
+myWidget->render(this);
+//! [8]
+
+
+//! [9]
+setTabOrder(a, b); // a to b
+setTabOrder(b, c); // a to b to c
+setTabOrder(c, d); // a to b to c to d
+//! [9]
+
+
+//! [10]
+// WRONG
+setTabOrder(c, d); // c to d
+setTabOrder(a, b); // a to b AND c to d
+setTabOrder(b, c); // a to b to c, but not c to d
+//! [10]
+
+
+//! [11]
+void MyWidget::closeEvent(QCloseEvent *event)
+{
+    QSettings settings("MyCompany", "MyApp");
+    settings.setValue("geometry", saveGeometry());
+    QWidget::closeEvent(event);
+}
+//! [11]
+
+
+//! [12]
+QSettings settings("MyCompany", "MyApp");
+myWidget->restoreGeometry(settings.value("myWidget/geometry").toByteArray());
+//! [12]
+
+
+//! [13]
+setUpdatesEnabled(false);
+bigVisualChanges();
+setUpdatesEnabled(true);
+//! [13]
+
+
+//! [14]
+...
+extern void qt_x11_set_global_double_buffer(bool);
+qt_x11_set_global_double_buffer(false);
+...
+//! [14]