1 files changed, 82 insertions, 0 deletions
diff --git a/doc/src/snippets/code/src_gui_graphicsview_qgraphicsscene.cpp b/doc/src/snippets/code/src_gui_graphicsview_qgraphicsscene.cpp
new file mode 100644
index 0000000..20b0979
--- /dev/null
+++ b/doc/src/snippets/code/src_gui_graphicsview_qgraphicsscene.cpp
@@ -0,0 +1,82 @@
+//! [0]
+QGraphicsScene scene;
+scene.addText("Hello, world!");
+
+QGraphicsView view(&scene);
+view.show();
+//! [0]
+
+
+//! [1]
+QGraphicsScene scene;
+scene.addItem(...
+...
+QPrinter printer(QPrinter::HighResolution);
+printer.setPaperSize(QPrinter::A4);
+
+QPainter painter(&printer);
+scene.render(&painter);
+//! [1]
+
+
+//! [2]
+QSizeF segmentSize = sceneRect().size() / pow(2, depth - 1);
+//! [2]
+
+
+//! [3]
+QGraphicsScene scene;
+QGraphicsView view(&scene);
+view.show();
+
+// a blue background
+scene.setBackgroundBrush(Qt::blue);
+
+// a gradient background
+QRadialGradient gradient(0, 0, 10);
+gradient.setSpread(QGradient::RepeatSpread);
+scene.setBackgroundBrush(gradient);
+//! [3]
+
+
+//! [4]
+QGraphicsScene scene;
+QGraphicsView view(&scene);
+view.show();
+
+// a white semi-transparent foreground
+scene.setForegroundBrush(QColor(255, 255, 255, 127));
+
+// a grid foreground
+scene.setForegroundBrush(QBrush(Qt::lightGray, Qt::CrossPattern));
+//! [4]
+
+
+//! [5]
+QRectF TileScene::rectForTile(int x, int y) const
+{
+    // Return the rectangle for the tile at position (x, y).
+    return QRectF(x * tileWidth, y * tileHeight, tileWidth, tileHeight);
+}
+
+void TileScene::setTile(int x, int y, const QPixmap &pixmap)
+{
+    // Sets or replaces the tile at position (x, y) with pixmap.
+    if (x >= 0 && x < numTilesH && y >= 0 && y < numTilesV) {
+        tiles[y][x] = pixmap;
+        invalidate(rectForTile(x, y), BackgroundLayer);
+    }
+}
+
+void TileScene::drawBackground(QPainter *painter, const QRectF &exposed)
+{
+    // Draws all tiles that intersect the exposed area.
+    for (int y = 0; y < numTilesV; ++y) {
+        for (int x = 0; x < numTilesH; ++x) {
+            QRectF rect = rectForTile(x, y);
+            if (exposed.intersects(rect))
+                painter->drawPixmap(rect.topLeft(), tiles[y][x]);
+        }
+    }
+}
+//! [5]