Long live Qt!

1 files changed, 27 insertions, 0 deletions

diff --git a/doc/src/snippets/code/src_gui_kernel_qlayout.cpp b/doc/src/snippets/code/src_gui_kernel_qlayout.cpp
new file mode 100644
index 0000000..26d178f
--- /dev/null
+++ b/doc/src/snippets/code/src_gui_kernel_qlayout.cpp
@@ -0,0 +1,27 @@
+//! [0]
+static void paintLayout(QPainter *painter, QLayoutItem *item)
+{
+    QLayout *layout = item->layout();
+    if (layout) {
+        for (int i = 0; i < layout->count(); ++i)
+            paintLayout(painter, layout->itemAt(i));
+    }
+    painter->drawRect(item->geometry());
+}
+
+void MyWidget::paintEvent(QPaintEvent *)
+{
+    QPainter painter(this);
+    if (layout())
+        paintLayout(&painter, layout());
+}
+//! [0]
+
+
+//! [1]
+QLayoutItem *child;
+while ((child = layout->takeAt(0)) != 0) {
+    ...
+    delete child;
+}
+//! [1]