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Diffstat (limited to 'demos/mobile/guitartuner/src/mycomponents/adjustbars.js')
-rw-r--r-- | demos/mobile/guitartuner/src/mycomponents/adjustbars.js | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/demos/mobile/guitartuner/src/mycomponents/adjustbars.js b/demos/mobile/guitartuner/src/mycomponents/adjustbars.js new file mode 100644 index 00000000..ba652a6f --- /dev/null +++ b/demos/mobile/guitartuner/src/mycomponents/adjustbars.js @@ -0,0 +1,89 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtDeclarative module 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 Nokia Corporation 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." +** $QT_END_LICENSE$ +** +****************************************************************************/ + +/* JavaScript functions for creating, handling and + * destroying the bars of the adjuster component. */ + +var maxBars = 10; +var firstBarHeight = 5; +var bars = new Array(maxBars); +var colors = new Array(maxBars); +var barWidthFactor = 2.3; + +function createBars() { + var barWidth = adjuster.width/maxBars/barWidthFactor; + for (var i = 1; i <= maxBars; i++) { + //Create, configure and store the bars. + var bar = Qt.createQmlObject('import QtQuick 1.0; Rectangle {smooth: true}', adjuster, "dynamicBar"); + bar.width = barWidth; + bar.height = firstBarHeight+(i/maxBars)*(adjuster.height*0.8-firstBarHeight); + bar.radius = bar.width/2; + bar.x = (i-1)*(barWidthFactor*barWidth); + bar.y = adjuster.height/2 - bar.height/2; + bars[i-1] = bar; + + //Calculate and store the colors + if (i < maxBars/2) { + colors[i-1] = Qt.rgba(1-i/(maxBars/2), 1, 1-i/(maxBars/2), i); + } + else { + colors[i-1] = Qt.rgba((i-(maxBars/2))/(maxBars/2), 1-((i-(maxBars/2))/(maxBars/2)), 0, i); + } + } +} + +function destroyBars() { + for (var i = 0; i < maxBars; i++) { + bars[i].color = "transparent" //Colors must be set to transparent or otherwise the bars will stay appeared. + bars[i].destroy(); + } +} + +function fillBars(barNumber) { + //Set the color for the bars (transparent from the selected bar to the end). + for (var i = 0; i < maxBars; i++) { + if (i < barNumber) { + bars[i].color = colors[i]; + } + else { + bars[i].color = "black"; + } + } +} |