Reduce assumptions in examples

-dynamic scene, don't set duration on running animation (doesn't work)
-dynamic scene, just use set colors instead of system palette (in case
platform doesn't support it right, like N900)
-dynamic scene, calculator and shadereffects, don't rely on root item being
automatically in scope (possibly confusing)

Change-Id: I1eec018d5387424dc6b07bf51c1b2184b3048553
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

1 files changed, 6 insertions, 5 deletions

diff --git a/examples/quick/shadereffects/shadereffects.qml b/examples/quick/shadereffects/shadereffects.qml
index b76c960a8f..25efa5f4ed 100644
--- a/examples/quick/shadereffects/shadereffects.qml
+++ b/examples/quick/shadereffects/shadereffects.qml
@@ -43,6 +43,7 @@ import QtQuick 2.0
 import "content"
 
 Rectangle {
+    id: root
     width: 320
     height: 480
 /*!
@@ -56,10 +57,10 @@ Rectangle {
 */
     property color col: "lightsteelblue"
     gradient: Gradient {
-        GradientStop { position: 0.0; color: Qt.tint(col, "#20FFFFFF") }
-        GradientStop { position: 0.1; color: Qt.tint(col, "#20AAAAAA") }
-        GradientStop { position: 0.9; color: Qt.tint(col, "#20666666") }
-        GradientStop { position: 1.0; color: Qt.tint(col, "#20000000") }
+        GradientStop { position: 0.0; color: Qt.tint(root.col, "#20FFFFFF") }
+        GradientStop { position: 0.1; color: Qt.tint(root.col, "#20AAAAAA") }
+        GradientStop { position: 0.9; color: Qt.tint(root.col, "#20666666") }
+        GradientStop { position: 1.0; color: Qt.tint(root.col, "#20000000") }
     }
 
     ShaderEffectSource {
@@ -241,7 +242,7 @@ Rectangle {
             width: 160
             height: 160
             property variant source: theSource
-            property color tint: sliderToColor(colorizeSlider.value)
+            property color tint: root.sliderToColor(colorizeSlider.value)
             fragmentShader: "
                 uniform sampler2D source;
                 uniform lowp vec4 tint;