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Digital Artifex
226
package/contents/ui/ShaderToyModel.qml
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226
package/contents/ui/ShaderToyModel.qml
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/*
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* Komplex Wallpaper Engine
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* Copyright (C) 2025 @DigitalArtifex | github.com/DigitalArtifex
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*
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* This was originally part of the KDE Shader Wallpaper Project, which was the inspiration for this project.
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* It has been modified to use the new channel structure and is being used to support
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* ShaderToy imports.
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*
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* --------------------------------------------------------------------------------------------------------
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*
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* This software uses some of the QML code from JaredTao/jared2020@163.com's ToyShader for Android.
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* See: https://github.com/jaredtao/TaoShaderToy/
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*/
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pragma ComponentBehavior: Bound
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import QtCore
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import QtQuick
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import QtQuick.Controls
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import QtQuick.Dialogs as Dialogs
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import org.kde.plasma.core as PlasmaCore
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Item
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{
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property real pixelRatio: 1 //This will (hopefully) be set to PlasmaCore.Units.devicePixelRatio in onCompleted
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property vector3d iResolution: Qt.vector3d(wallpaper.configuration.resolution_x,wallpaper.configuration.resolution_y,1)//width, height, pixel aspect ratio
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property real iTime: 0 //used by most motion shaders
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property real iTimeDelta: iTime
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property var iChannelTime: [iTime, iTime, iTime, iTime] //individual channel time values
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property real iSampleRate: 44100 //used by audio shaders
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property int iFrame: 0
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property real iFrameRate: wallpaper.configuration.framerate_limit // Default frame rate for the shader
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property vector4d iMouse
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property var iDate
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property bool running: windowModel.runShader // Controls whether the wallpaper is running or paused
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// Individual channel resolutions to customize performance and quality
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property var iChannelResolution: [Qt.vector3d(wallpaper.configuration.iChannel0_resolution_x, wallpaper.configuration.iChannel0_resolution_y, pixelRatio),
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Qt.vector3d(wallpaper.configuration.iChannel1_resolution_x, wallpaper.configuration.iChannel1_resolution_y, pixelRatio),
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Qt.vector3d(wallpaper.configuration.iChannel2_resolution_x, wallpaper.configuration.iChannel2_resolution_y, pixelRatio),
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Qt.vector3d(wallpaper.configuration.iChannel3_resolution_x, wallpaper.configuration.iChannel3_resolution_y, pixelRatio)]
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id: mainItem
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// The WindowModel is used to manage the interaction with the desktop environment
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WindowModel
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{
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id: windowModel
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screenGeometry: mainItem.parent.screenGeometry
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}
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Rectangle
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{
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anchors.fill: parent
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color: "black"
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Text
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{
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color: "white"
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text: "<h1>" + wallpaper.configuration.selectedShaderPath + "</h1>"
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}
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// Setup the shader channels (iChannel0, iChannel1, iChannel2, iChannel3)
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// These channels are used to pass channel data to the shader sources and can
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// be configured to use different types of media (Image, Video, Shader, Audio, CubeMap)
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ShaderChannel
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{
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//Fallback to a channel if the output channel is not set or there was an error loading the shader
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visible: wallpaper.configuration.iChannel0_flag && (channelOutput.source === "" || channelOutput.source === undefined)
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iTime: mainItem.iTime
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iMouse: mainItem.iMouse
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iResolution: mainItem.iChannelResolution[0]
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id: channel0
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anchors.fill: parent
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type: wallpaper.configuration.iChannel0_flag ? wallpaper.configuration.iChannel0_type : 0
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source: wallpaper.configuration.iChannel0_flag ? Qt.resolvedUrl(wallpaper.configuration.iChannel0) : ""
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}
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ShaderChannel
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{
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//Fallback to a channel if the output channel is not set or there was an error loading the shader
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visible: wallpaper.configuration.iChannel1_flag && (channelOutput.source === "" || channelOutput.source === undefined)
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iTime: mainItem.iTime
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iResolution: mainItem.iChannelResolution[1]
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id: channel1
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anchors.fill: parent
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type: wallpaper.configuration.iChannel1_flag ? wallpaper.configuration.iChannel1_type : 0
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source: wallpaper.configuration.iChannel1_flag ? Qt.resolvedUrl(wallpaper.configuration.iChannel1) : ""
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}
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ShaderChannel
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{
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//Fallback to a channel if the output channel is not set or there was an error loading the shader
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visible: wallpaper.configuration.iChannel2_flag && (channelOutput.source === "" || channelOutput.source === undefined)
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iTime: mainItem.iTime
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iResolution: mainItem.iChannelResolution[2]
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id: channel2
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anchors.fill: parent
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type: wallpaper.configuration.iChannel2_flag ? wallpaper.configuration.iChannel2_type : 0
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source: wallpaper.configuration.iChannel2_flag ? Qt.resolvedUrl(wallpaper.configuration.iChannel2) : ""
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}
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ShaderChannel
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{
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//Fallback to a channel if the output channel is not set or there was an error loading the shader
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visible: wallpaper.configuration.iChannel3_flag && (channelOutput.source === "" || channelOutput.source === undefined)
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iTime: mainItem.iTime
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iChannelTime: [mainItem.iTime, mainItem.iTime, mainItem.iTime, mainItem.iTime]
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iResolution: mainItem.iChannelResolution[3]
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iDate: mainItem.iDate
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id: channel3
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anchors.fill: parent
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type: wallpaper.configuration.iChannel3_flag ? wallpaper.configuration.iChannel3_type : 0
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source: wallpaper.configuration.iChannel3_flag ? Qt.resolvedUrl(wallpaper.configuration.iChannel3) : ""
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}
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// The output channel that combines all the input channels and displays the final shader output
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// This channel must be set to a shader source file that has been pre-compiled to a QSB Fragment Shader
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ShaderChannel
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{
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iTime: mainItem.iTime
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iMouse: mainItem.iMouse
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iResolution: mainItem.iResolution
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id: channelOutput
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anchors.fill: parent
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type: ShaderChannel.Type.ShaderChannel
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source: wallpaper.configuration.selectedShaderPath ? wallpaper.configuration.selectedShaderPath : ""
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iChannel0: channel0
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iChannel1: channel1
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iChannel2: channel2
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iChannel3: channel3
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visible: true // Set to true to display the output
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}
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// To save on performance, just use one timer for all channels
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Timer
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{
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id: channelTimer
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//Not entirely sure if this will actually limit the frame rate
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interval: (1 / mainItem.iFrameRate) * 1000 //fps to ms cycles :: fps = 60 = 1 / 60 = 0.01666 * 1000 = 16
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repeat: true
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running: mainItem.running
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triggeredOnStart: true
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onTriggered:
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{
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var date = new Date();
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var startOfDay = new Date(date.getFullYear(), date.getMonth(), date.getDate(), 0, 0, 0);
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var secondsSinceMidnight = (date - startOfDay) / 1000;
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mainItem.iTime += (interval / 1000) * (wallpaper.configuration.shaderSpeed ? wallpaper.configuration.shaderSpeed : 1.0)
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mainItem.iDate = Qt.vector4d(date.getFullYear(), date.getMonth() + 1, date.getDate(), secondsSinceMidnight)
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}
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}
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}
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Component.onCompleted:
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{
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Qt.createQmlObject(`import QtQuick
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MouseArea
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{
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id: mouseTrackingArea
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propagateComposedEvents: true
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preventStealing: false
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enabled: wallpaper.configuration.mouseAllowed
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anchors.fill: parent
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hoverEnabled: true
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onPositionChanged: (mouse) => {
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mouse.accepted = false
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mainItem.iMouse.x = mouse.x * wallpaper.configuration.mouseSpeedBias
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mainItem.iMouse.y = -mouse.y * wallpaper.configuration.mouseSpeedBias
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}
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onClicked:(mouse) => {
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mouse.accepted = false
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mainItem.iMouse.z = mouse.x
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mainItem.iMouse.w = mouse.y
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}
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// this still doesnt work... guess a C++ wrapper is all that can be done?
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onPressed:(mouse) => {
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mouse.accepted = false
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}
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onPressAndHold:(mouse) => {
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mouse.accepted = false
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}
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onDoubleClicked:(mouse) => {
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mouse.accepted = false
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}
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//cancelled, entered, and exited do not pass mouse events, so we can remove them
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onReleased:(mouse) => {
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mouse.accepted = false
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}
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onWheel: (mouse) => {
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mouse.accepted = false
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}
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}`, parent.parent, "mouseTrackerArea");
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// Initialize pixelRatio for shader use
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pixelRatio = 1 //PlasmaCore.Units.devicePixelRatio was removed in Plasma6
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}
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}
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