Add sample qml application

[staging/HomeScreen.git] / sample-qml / imports / components / InsetShadow.qml

diff --git a/sample-qml/imports/components/InsetShadow.qml b/sample-qml/imports/components/InsetShadow.qml
new file mode 100644 (file)
index 0000000..6ad17cd
--- /dev/null
+++ b/sample-qml/imports/components/InsetShadow.qml
@@ -0,0 +1,40 @@
+/* Copyright (C) 2015, Jaguar Land Rover. All Rights Reserved.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import QtQuick 2.0    
+
+ShaderEffect {
+    anchors.fill: parent
+    property color color
+    property real radius: 100
+    property real border: 20
+
+    fragmentShader: "
+uniform lowp float radius;
+uniform lowp float border;
+uniform lowp float height;
+uniform lowp float width;
+uniform lowp float qt_Opacity;
+uniform lowp vec4 color;
+varying highp vec2 qt_TexCoord0;
+
+void main(void) {
+    lowp vec2 dist = min(qt_TexCoord0, vec2(1.0) - qt_TexCoord0);
+    // Border shadow
+    lowp float xval = smoothstep(0.0, border, dist.x * width);
+    lowp float yval = smoothstep(0.0, border, dist.y * height);
+    lowp float borderVal = sqrt(yval * xval) * 0.5 + 0.5;
+    // Inner shadow
+    xval = smoothstep(0.0, radius, dist.x * width);
+    yval = smoothstep(0.0, radius, dist.y * width);
+    lowp float innerVal = sqrt(yval * xval) * 0.5 + 0.5;
+
+    lowp vec4 innerColor = mix(vec4(0.0, 0.0, 0.0, 0.5), color, innerVal);
+    lowp vec4 borderColor = mix(vec4(0.0, 0.0, 0.0, 1.0), innerColor, borderVal);
+    gl_FragColor = borderColor * qt_Opacity;
+}
+    "
+}