From 610aa1737a206fe97628a3375a543400ea0761fa Mon Sep 17 00:00:00 2001
From: Rhys Weatherley <rhys.weatherley@nokia.com>
Date: Fri, 24 Jul 2009 12:51:31 +1000
Subject: Update QGraphicsShaderEffect to match new API

---
 examples/graphicsview/customshader/blureffect.cpp     | 19 +++++++++----------
 examples/graphicsview/customshader/blureffect.h       | 11 +++++------
 examples/graphicsview/customshader/blurpicker.cpp     | 11 +++++------
 examples/graphicsview/customshader/blurpicker.h       |  3 ---
 .../graphicsview/customshader/customshadereffect.cpp  |  4 ++--
 .../graphicsview/customshader/customshadereffect.h    |  2 +-
 6 files changed, 22 insertions(+), 28 deletions(-)

(limited to 'examples')

diff --git a/examples/graphicsview/customshader/blureffect.cpp b/examples/graphicsview/customshader/blureffect.cpp
index 8345d0b8e..43791c6fb 100644
--- a/examples/graphicsview/customshader/blureffect.cpp
+++ b/examples/graphicsview/customshader/blureffect.cpp
@@ -43,28 +43,27 @@
 
 #include <QDebug>
 
-BlurEffect::BlurEffect(QObject *parent)
+BlurEffect::BlurEffect(QGraphicsItem *item)
     : QGraphicsBlurEffect()
-    , m_baseLine(200)
+    , m_baseLine(200), item(item)
 {
 }
 
-void BlurEffect::adjustForItem(const QGraphicsItem *item)
+void BlurEffect::adjustForItem()
 {
     qreal y = m_baseLine - item->pos().y();
     qreal radius = qBound(0.0, y / 32, 16.0);
     setBlurRadius(radius);
 }
 
-QRectF BlurEffect::boundingRectFor(const QGraphicsItem *item)
+QRectF BlurEffect::boundingRect() const
 {
-    adjustForItem(item);
-    return QGraphicsBlurEffect::boundingRectFor(item);
+    const_cast<BlurEffect *>(this)->adjustForItem();
+    return QGraphicsBlurEffect::boundingRect();
 }
 
-void BlurEffect::drawItem(QGraphicsItem *item, QPainter *painter,
-                                       const QStyleOptionGraphicsItem *option, QWidget *widget)
+void BlurEffect::draw(QPainter *painter)
 {
-    adjustForItem(item);
-    QGraphicsBlurEffect::drawItem(item, painter, option, widget);
+    adjustForItem();
+    QGraphicsBlurEffect::draw(painter);
 }
diff --git a/examples/graphicsview/customshader/blureffect.h b/examples/graphicsview/customshader/blureffect.h
index 24a686729..2aea8bf33 100644
--- a/examples/graphicsview/customshader/blureffect.h
+++ b/examples/graphicsview/customshader/blureffect.h
@@ -48,21 +48,20 @@
 class BlurEffect: public QGraphicsBlurEffect
 {
 public:
-    BlurEffect(QObject *parent = 0);
+    BlurEffect(QGraphicsItem *item);
 
     void setBaseLine(qreal y) { m_baseLine = y; }
 
-    QRectF boundingRectFor(const QGraphicsItem *item);
+    QRectF boundingRect() const;
 
-    void drawItem(QGraphicsItem *item, QPainter *painter,
-                  const QStyleOptionGraphicsItem *option = 0,
-                  QWidget *widget = 0);
+    void draw(QPainter *painter);
 
 private:
-    void adjustForItem(const QGraphicsItem *item);
+    void adjustForItem();
 
 private:
     qreal m_baseLine;
+    QGraphicsItem *item;
 };
 
 #endif // BLUREFFECT_H
diff --git a/examples/graphicsview/customshader/blurpicker.cpp b/examples/graphicsview/customshader/blurpicker.cpp
index 32bfc898d..de8031275 100644
--- a/examples/graphicsview/customshader/blurpicker.cpp
+++ b/examples/graphicsview/customshader/blurpicker.cpp
@@ -44,6 +44,7 @@
 #include <QtGui>
 
 #include "blureffect.h"
+#include "customshadereffect.h"
 
 #ifndef M_PI
 #define M_PI 3.14159265358979323846
@@ -79,9 +80,10 @@ void BlurPicker::updateIconPositions()
         pos -= QPointF(40, 40);
         icon->setPos(pos);
         baseline = qMax(baseline, ys);
+        if (i != 3)
+            static_cast<BlurEffect *>(icon->graphicsEffect())->setBaseLine(baseline);
     }
 
-    m_blurEffect->setBaseLine(baseline);
     m_scene.update();
 }
 
@@ -89,9 +91,6 @@ void BlurPicker::setupScene()
 {
     m_scene.setSceneRect(-200, -120, 400, 240);
 
-    m_blurEffect = new BlurEffect(this);
-    m_customEffect = new CustomShaderEffect(this);
-
     QStringList names;
     names << ":/images/accessories-calculator.png";
     names << ":/images/accessories-text-editor.png";
@@ -107,9 +106,9 @@ void BlurPicker::setupScene()
         QGraphicsPixmapItem *icon = m_scene.addPixmap(pixmap);
         icon->setZValue(1);
         if (i == 3)
-            icon->setEffect(m_customEffect);
+            icon->setGraphicsEffect(new CustomShaderEffect());
         else
-            icon->setEffect(m_blurEffect);
+            icon->setGraphicsEffect(new BlurEffect(icon));
         m_icons << icon;
     }
 
diff --git a/examples/graphicsview/customshader/blurpicker.h b/examples/graphicsview/customshader/blurpicker.h
index b4ac97b70..b7ea3b4e0 100644
--- a/examples/graphicsview/customshader/blurpicker.h
+++ b/examples/graphicsview/customshader/blurpicker.h
@@ -47,7 +47,6 @@
 #include <QTimeLine>
 
 #include "blureffect.h"
-#include "customshadereffect.h"
 
 class BlurPicker: public QGraphicsView
 {
@@ -68,8 +67,6 @@ private:
 private:
     qreal m_index;
     QGraphicsScene m_scene;
-    BlurEffect *m_blurEffect;
-    CustomShaderEffect *m_customEffect;
     QList<QGraphicsItem*> m_icons;
     QTimeLine m_timeLine;
 };
diff --git a/examples/graphicsview/customshader/customshadereffect.cpp b/examples/graphicsview/customshader/customshadereffect.cpp
index 9f1945d6e..293123c4b 100644
--- a/examples/graphicsview/customshader/customshadereffect.cpp
+++ b/examples/graphicsview/customshader/customshadereffect.cpp
@@ -53,8 +53,8 @@ static char const colorizeShaderCode[] =
     "    return vec4(colorize.rgb, src.a);\n"
     "}";
 
-CustomShaderEffect::CustomShaderEffect(QObject *parent)
-    : QGraphicsShaderEffect(parent),
+CustomShaderEffect::CustomShaderEffect()
+    : QGraphicsShaderEffect(),
       color(Qt::red)
 {
     setPixelShaderFragment(colorizeShaderCode);
diff --git a/examples/graphicsview/customshader/customshadereffect.h b/examples/graphicsview/customshader/customshadereffect.h
index b4e0fb9f0..6482bd540 100644
--- a/examples/graphicsview/customshader/customshadereffect.h
+++ b/examples/graphicsview/customshader/customshadereffect.h
@@ -49,7 +49,7 @@
 class CustomShaderEffect: public QGraphicsShaderEffect
 {
 public:
-    CustomShaderEffect(QObject *parent = 0);
+    CustomShaderEffect();
 
     QColor effectColor() const { return color; }
     void setEffectColor(const QColor& c);
-- 
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