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| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** This file is part of the Qt Virtual Keyboard module of the Qt Toolkit. |
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| |
| import QtQuick 2.0 |
| |
| /*! |
| \qmltype KeyIcon |
| \inqmlmodule QtQuick.VirtualKeyboard.Styles |
| \brief Key icon with adjustable color. |
| \ingroup qtvirtualkeyboard-styles-qml |
| |
| The KeyIcon item displays an icon with adjustable color. |
| */ |
| |
| Item { |
| /*! The icon color. */ |
| property alias color: overlay.color |
| /*! The source image. */ |
| property alias source: icon.source |
| Image { |
| id: icon |
| sourceSize.height: parent.height |
| sourceSize.width: parent.width |
| anchors.horizontalCenter: parent.horizontalCenter |
| anchors.verticalCenter: parent.verticalCenter |
| visible: false |
| } |
| ShaderEffect { |
| id: overlay |
| property color color |
| property variant texture: icon |
| anchors.fill: icon |
| fragmentShader: " |
| uniform lowp vec4 color; |
| uniform lowp float qt_Opacity; |
| uniform lowp sampler2D texture; |
| varying highp vec2 qt_TexCoord0; |
| void main() { |
| highp vec4 sample = texture2D(texture, qt_TexCoord0) * qt_Opacity; |
| gl_FragColor = vec4(color.rgb, 1.0) * sample.a; |
| } |
| " |
| } |
| } |