| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** This file is part of the demonstration applications of the Qt Toolkit. |
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| ****************************************************************************/ |
| |
| import QtQuick 2.0 |
| |
| Rectangle { |
| id: window |
| |
| width: 400 |
| height: 200 |
| |
| gradient: Gradient { |
| GradientStop { position: 0; color: "lightsteelblue" } |
| GradientStop { position: 1; color: "black" } |
| } |
| |
| Column { |
| id: column |
| opacity: 0.99 // work around QTBUG-29037 |
| |
| y: 50 |
| width: 200 |
| anchors.horizontalCenter: parent.horizontalCenter |
| |
| TextBox { |
| id: input1 |
| width: parent.width |
| height: 30 |
| focus: true |
| |
| label: "A QML text box.." |
| |
| nextInFocus: input2; |
| } |
| |
| TextBox { |
| id: input2 |
| width: parent.width |
| height: 30 |
| |
| label: "Another QML text box.." |
| |
| nextInFocus: input1; |
| } |
| |
| layer.enabled: true |
| layer.smooth: true |
| } |
| |
| ShaderEffect { |
| anchors.top: column.bottom |
| width: column.width |
| height: column.height; |
| anchors.left: column.left |
| |
| property variant source: column; |
| property size sourceSize: Qt.size(0.5 / column.width, 0.5 / column.height); |
| |
| fragmentShader: " |
| varying highp vec2 qt_TexCoord0; |
| uniform lowp sampler2D source; |
| uniform lowp vec2 sourceSize; |
| uniform lowp float qt_Opacity; |
| void main() { |
| |
| lowp vec2 tc = qt_TexCoord0 * vec2(1, -1) + vec2(0, 1); |
| lowp vec4 col = 0.25 * (texture2D(source, tc + sourceSize) |
| + texture2D(source, tc- sourceSize) |
| + texture2D(source, tc + sourceSize * vec2(1, -1)) |
| + texture2D(source, tc + sourceSize * vec2(-1, 1)) |
| ); |
| gl_FragColor = col * qt_Opacity * (1.0 - qt_TexCoord0.y) * 0.2; |
| }" |
| } |
| } |