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Diffstat (limited to 'basicsuite/Shader Effects/LevelSlider.qml')
| -rw-r--r-- | basicsuite/Shader Effects/LevelSlider.qml | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/basicsuite/Shader Effects/LevelSlider.qml b/basicsuite/Shader Effects/LevelSlider.qml new file mode 100644 index 0000000..995ecf8 --- /dev/null +++ b/basicsuite/Shader Effects/LevelSlider.qml @@ -0,0 +1,201 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the Qt Graphical Effects module. +** +** $QT_BEGIN_LICENSE:BSD$ +** 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 + +Item { + id: slider + + width: parent.width + height: 30 + + property real midPointValue: 0.5 + property real blackPointValue: 0.0 + property real whitePointValue: 1.0 + property real maximum: 1 + property real minimum: 0 + property real gamma: Math.min(10.0, Math.max(0.1, 1/(Math.log(0.5) / Math.log(midPointValue)))) + property string caption: "" + property bool integer: false + property bool showMidPoint: true + + Text { + id: captionText + width: 110 + anchors.bottom: parent.bottom + anchors.bottomMargin: 13 + horizontalAlignment: Text.AlignRight + text: slider.caption + ':' + font.family: "Arial" + font.pixelSize: 11 + color: "#B3B3B3" + } + + Item { + id: track + height: parent.height + anchors.verticalCenter: parent.verticalCenter + anchors.left: parent.left + anchors.leftMargin: parent.width / 2 - 30 + anchors.right: parent.right + anchors.rightMargin: 10 + + BorderImage { + id: trackImage + source: "images/slider_track.png" + anchors.left: parent.left + anchors.right: parent.right + border.right: 2 + width: parent.width + } + + BorderImage { + id: trackFilled + anchors.left: blackpointHandle.x < whitePointHandle.x ? blackpointHandle.right : whitePointHandle.right + anchors.right: blackpointHandle.x < whitePointHandle.x ? whitePointHandle.left : blackpointHandle.left + anchors.margins: -10 + source: "images/slider_track_filled.png" + border.left: 3 + border.right: 3 + } + + Image { + id: blackpointHandle; + smooth: true + source: blackpointMouseArea.pressed ? "images/slider_handle_pressed.png" : "images/slider_handle_black.png" + x: trackImage.x - width/2 + 5 + width: 20 + onXChanged: { + blackPointValue = minimum + maximum * ((x + 5) / (track.width - 10)) + midpointHandle.x = blackpointHandle.x + ((whitePointHandle.x - blackpointHandle.x) * midPointValue) + } + } + + Image { + id: midpointHandle; + smooth: true + source: midpointMouseArea.pressed ? "images/slider_handle_pressed.png" : "images/slider_handle_gray.png" + x: blackpointHandle.x + ((whitePointHandle.x - blackpointHandle.x) * 0.5) + visible: showMidPoint + width: 20 + onXChanged: { + if (midpointMouseArea.pressed) { + midPointValue = (x - Math.min(whitePointHandle.x, blackpointHandle.x)) / Math.abs(whitePointHandle.x - blackpointHandle.x) + } + } + } + + Image { + id: whitePointHandle; + smooth: true + source: whitepointMouseArea.pressed ? "images/slider_handle_pressed.png" : "images/slider_handle_white.png" + x: trackImage.x + trackImage.width - width/2 - 5 + width: 20 + onXChanged: { + whitePointValue = minimum + maximum * ((x + 5) / (track.width - 10)) + midpointHandle.x = blackpointHandle.x + ((whitePointHandle.x - blackpointHandle.x) * midPointValue) + } + } + + MouseArea { + id: blackpointMouseArea + anchors.fill: blackpointHandle + anchors.margins: -5 + drag.target: blackpointHandle + drag.axis: Drag.XAxis + drag.minimumX: -5 + drag.maximumX: trackImage.width - blackpointHandle.width + 5 + } + + MouseArea { + id: whitepointMouseArea + anchors.fill: whitePointHandle + anchors.margins: -5 + drag.target: whitePointHandle + drag.axis: Drag.XAxis + drag.minimumX: -5 + drag.maximumX: trackImage.width - whitePointHandle.width + 5 + } + + MouseArea { + id: midpointMouseArea + anchors.fill: midpointHandle + anchors.margins: -5 + drag.target: midpointHandle + drag.axis: Drag.XAxis + drag.minimumX: Math.min(blackpointHandle.x, whitePointHandle.x) + drag.maximumX: Math.max(whitePointHandle.x, blackpointHandle.x) + } + } + + Text { + id: blackPointValueCaption + anchors.bottom: track.bottom + anchors.left: track.left + text: slider.blackPointValue.toFixed(1) + font.family: "Arial" + font.pixelSize: 11 + color: "#999999" + } + + Text { + id: midPointValueCaption + anchors.bottom: track.bottom + anchors.left: track.left + anchors.right: track.right + horizontalAlignment: Text.AlignHCenter + width: track.width + text: slider.gamma.toFixed(1) + font.family: "Arial" + font.pixelSize: 11 + color: "#999999" + visible: showMidPoint + } + + Text { + id: whitePointValueCaption + anchors.bottom: track.bottom + anchors.right: track.right + text: slider.whitePointValue.toFixed(1) + font.family: "Arial" + font.pixelSize: 11 + color: "#999999" + } +} |