Add QGraphicsSourceEffect.

2 files changed, 107 insertions, 2 deletions

diff --git a/examples/graphicsview/dragdroprobot/main.cpp b/examples/graphicsview/dragdroprobot/main.cpp
index 30b8b70..b00bf72 100644
--- a/examples/graphicsview/dragdroprobot/main.cpp
+++ b/examples/graphicsview/dragdroprobot/main.cpp
@@ -46,6 +46,100 @@
 
 #include <math.h>
 
+Robot *robot = 0;
+
+class MyGraphicsEffect : public QGraphicsEffect
+{
+public:
+    void draw(QPainter *painter, QGraphicsEffectSource *source)
+    {
+        painter->save();
+
+        QPen pen;
+        static int color = Qt::black;
+        pen.setColor(Qt::GlobalColor(color));
+        if (color++ >= Qt::darkYellow)
+            color = Qt::black;
+        pen.setWidth(3);
+        painter->setPen(pen);
+
+        source->draw(painter);
+
+        painter->restore();
+    }
+};
+
+class MyWidget : public QWidget
+{
+    Q_OBJECT
+public:
+    MyWidget(QWidget *parent = 0) : QWidget(parent)
+    {
+        setLayout(new QVBoxLayout);
+        QComboBox *box = new QComboBox;
+        box->addItem("None");
+        box->addItem("Blur");
+        box->addItem("Colorize");
+        box->addItem("Pixelize");
+        box->addItem("Grayscale");
+        box->addItem("Bloom");
+        box->addItem("Shadow");
+        box->addItem("Custom");
+        layout()->addWidget(box);
+        connect(box, SIGNAL(currentIndexChanged(int)), this, SLOT(changeEffect(int)));
+    }
+
+public slots:
+    void changeEffect(int index)
+    {
+        switch (index) {
+        case 0:
+            delete robot->graphicsEffect();
+            robot->setGraphicsEffect(0);
+            break;
+        case 1:
+            delete robot->graphicsEffect();
+            robot->setGraphicsEffect(new QGraphicsBlurEffect);
+            break;
+        case 2:
+            delete robot->graphicsEffect();
+            robot->setGraphicsEffect(new QGraphicsColorizeEffect);
+            break;
+        case 3:
+            delete robot->graphicsEffect();
+            robot->setGraphicsEffect(new QGraphicsPixelizeEffect);
+            break;
+        case 4:
+            delete robot->graphicsEffect();
+            robot->setGraphicsEffect(new QGraphicsGrayscaleEffect);
+            break;
+        case 5:
+            delete robot->graphicsEffect();
+            robot->setGraphicsEffect(new QGraphicsBloomEffect);
+            break;
+        case 6:
+            delete robot->graphicsEffect();
+            robot->setGraphicsEffect(new QGraphicsShadowEffect);
+            break;
+        case 7:
+            delete robot->graphicsEffect();
+            robot->setGraphicsEffect(new MyGraphicsEffect);
+            break;
+        default:
+            break;
+        }
+    }
+protected:
+    void paintEvent(QPaintEvent *) {}
+    void mousePressEvent(QMouseEvent *) {}
+    void mouseReleaseEvent(QMouseEvent *) {}
+
+private:
+};
+
+#include "main.moc"
+
+
 int main(int argc, char **argv)
 {
     QApplication app(argc, argv);
@@ -62,17 +156,21 @@ int main(int argc, char **argv)
         scene.addItem(item);
     }
 
-    Robot *robot = new Robot;
+    robot = new Robot;
     robot->scale(1.2, 1.2);
     robot->setPos(0, -20);
     scene.addItem(robot);
 
     QGraphicsView view(&scene);
     view.setRenderHint(QPainter::Antialiasing);
-    view.setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
+    view.setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
     view.setBackgroundBrush(QColor(230, 200, 167));
     view.setWindowTitle("Drag and Drop Robot");
+    //    view.rotate(45);
     view.show();
 
+    MyWidget widget;
+    widget.show();
+
     return app.exec();
 }
diff --git a/examples/graphicsview/dragdroprobot/robot.cpp b/examples/graphicsview/dragdroprobot/robot.cpp
index 029a2ce..796336a 100644
--- a/examples/graphicsview/dragdroprobot/robot.cpp
+++ b/examples/graphicsview/dragdroprobot/robot.cpp
@@ -164,6 +164,13 @@ void RobotLimb::paint(QPainter *painter,
 Robot::Robot()
 {
     QGraphicsItem *torsoItem = new RobotTorso(this);    
+    //    torsoItem->setGraphicsEffect(new QGraphicsBloomEffect);
+    //    torsoItem->setGraphicsEffect(new QGraphicsBlurEffect);
+    //    torsoItem->setGraphicsEffect(new QGraphicsFrameEffect);
+    //    torsoItem->setGraphicsEffect(new QGraphicsShadowEffect);
+    //    torsoItem->setGraphicsEffect(new QGraphicsColorizeEffect);
+    //    torsoItem->setGraphicsEffect(new QGraphicsPixelizeEffect);
+    //    torsoItem->setGraphicsEffect(new QGraphicsGrayscaleEffect);
     QGraphicsItem *headItem = new RobotHead(torsoItem);
     QGraphicsItem *upperLeftArmItem = new RobotLimb(torsoItem);
     QGraphicsItem *lowerLeftArmItem = new RobotLimb(upperLeftArmItem);