/**************************************************************************** ** ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/legal ** ** This file is part of the examples of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:BSD$ ** You may use this file under the terms of the BSD license as follows: ** ** "Redistribution and use in source and binary forms, with or without ** modification, are permitted provided that the following conditions are ** met: ** * Redistributions of source code must retain the above copyright ** notice, this list of conditions and the following disclaimer. ** * Redistributions in binary form must reproduce the above copyright ** notice, this list of conditions and the following disclaimer in ** the documentation and/or other materials provided with the ** distribution. ** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names ** of its contributors may be used to endorse or promote products derived ** from this software without specific prior written permission. ** ** ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ** ** $QT_END_LICENSE$ ** ****************************************************************************/ import QtQuick 2.0 //import QtQuick.Particles 2.0 import org.kde.plasma.core 2.0 as PlasmaCore import org.kde.plasma.components 2.0 as PlasmaComponents import org.kde.plasma.extras 2.0 as PlasmaExtras ShaderExample { pageName: "Shadows" pageDescription: "" Grid { id: cfgrid columns: 2 anchors.top: parent.top anchors.right: parent.right width: parent.width * 0.6 height: 96 spacing: 6 columnSpacing: 12 PlasmaComponents.Label { text: "Distance:"; width: parent.width * 0.5; horizontalAlignment: Text.AlignRight elide: Text.ElideRight } PlasmaComponents.Slider { width: parent.width * 0.4 id: distanceSlider stepSize: 1 minimumValue: 0 maximumValue: 25 value: 8 } PlasmaComponents.Label { text: "Opacity:"; horizontalAlignment: Text.AlignRight elide: Text.ElideRight width: parent.width * 0.5; } PlasmaComponents.Slider { width: parent.width * 0.4 id: opacitySlider // stepSize: 250 minimumValue: 0 maximumValue: 1.0 stepSize: 0.05 value: 0.4 } } Item { anchors.fill: parent clip: true anchors.margins: -_s Item { id: theItem anchors.fill: parent anchors.topMargin: _s * 2 Column { id: "txtCol" anchors.fill: parent anchors.margins: _s anchors.topMargin: _s * 2 spacing: _s PlasmaExtras.Heading { text: "Effects on Components" } PlasmaExtras.Paragraph { text:"In Plasma 2, the user interface is based on an OpenGL scenegraph, composition of the UI happens on the graphics card. In the past weeks, we've been working on getting a Plasma 2 shell up and running, and on porting the QML imports of the Plasma Components." } PlasmaExtras.Heading { font.pointSize: 48 anchors.horizontalCenter: parent.horizontalCenter anchors.topMargin: _s * 3 text: "This is shadowy text." } Row { height: 48 width: parent.width spacing: _s PlasmaCore.IconItem { source: "configure" width: parent.height height: width } PlasmaCore.IconItem { source: "dialog-ok" width: parent.height height: width } PlasmaCore.SvgItem { id: buttonItem svg: PlasmaCore.Svg { id: configIconsSvg imagePath: "widgets/configuration-icons" } elementId: "maximize" width: parent.height height: width } PlasmaCore.IconItem { source: "akonadi" width: parent.height height: width } PlasmaCore.IconItem { source: "clock" width: parent.height height: width } } } } ShaderEffectSource { id: theSource sourceItem: theItem hideSource: true } ShaderEffect { anchors.fill: theItem property variant source: theSource property variant shadow: ShaderEffectSource { sourceItem: ShaderEffect { width: theItem.width height: theItem.height property variant delta: Qt.size(0.0, 1.0 / height) property variant source: ShaderEffectSource { sourceItem: ShaderEffect { width: theItem.width height: theItem.height property variant delta: Qt.size(1.0 / width, 0.0) property variant source: theSource fragmentShader: " uniform lowp float qt_Opacity; uniform sampler2D source; uniform highp vec2 delta; varying highp vec2 qt_TexCoord0; void main() { gl_FragColor =(0.0538 * texture2D(source, qt_TexCoord0 - 3.182 * delta) + 0.3229 * texture2D(source, qt_TexCoord0 - 1.364 * delta) + 0.2466 * texture2D(source, qt_TexCoord0) + 0.3229 * texture2D(source, qt_TexCoord0 + 1.364 * delta) + 0.0538 * texture2D(source, qt_TexCoord0 + 3.182 * delta)) * qt_Opacity; }" } } fragmentShader: " uniform lowp float qt_Opacity; uniform sampler2D source; uniform highp vec2 delta; varying highp vec2 qt_TexCoord0; void main() { gl_FragColor =(0.0538 * texture2D(source, qt_TexCoord0 - 3.182 * delta) + 0.3229 * texture2D(source, qt_TexCoord0 - 1.364 * delta) + 0.2466 * texture2D(source, qt_TexCoord0) + 0.3229 * texture2D(source, qt_TexCoord0 + 1.364 * delta) + 0.0538 * texture2D(source, qt_TexCoord0 + 3.182 * delta)) * qt_Opacity; }" } } property real angle: 0 property variant offset: Qt.point(distanceSlider.value * Math.cos(angle), distanceSlider.value * Math.sin(angle)) NumberAnimation on angle { loops: Animation.Infinite; from: 0; to: Math.PI * 2; duration: 6000 } property variant delta: Qt.size(offset.x / width, offset.y / height) property real darkness: opacitySlider.value // Changeme fragmentShader: " uniform lowp float qt_Opacity; uniform highp vec2 offset; uniform sampler2D source; uniform sampler2D shadow; uniform highp float darkness; uniform highp vec2 delta; varying highp vec2 qt_TexCoord0; void main() { lowp vec4 fg = texture2D(source, qt_TexCoord0); lowp vec4 bg = texture2D(shadow, qt_TexCoord0 + delta); gl_FragColor = (fg + vec4(0., 0., 0., darkness * bg.a) * (1. - fg.a)) * qt_Opacity; }" // Slider { // id: shadowSlider // anchors.left: parent.left // anchors.right: parent.right // anchors.bottom: parent.bottom // height: 40 // } } } }