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-rw-r--r--examples/wayland/qml-compositor/compositor.js155
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diff --git a/examples/wayland/qml-compositor/compositor.js b/examples/wayland/qml-compositor/compositor.js
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--- a/examples/wayland/qml-compositor/compositor.js
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-/****************************************************************************
-**
-** Copyright (C) 2015 The Qt Company Ltd.
-** Contact: http://www.qt.io/licensing/
-**
-** 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 The Qt Company Ltd 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."
-**
-** $QT_END_LICENSE$
-**
-****************************************************************************/
-
-var windowList = null;
-var indexes = null;
-
-function relayout() {
- if (windowList === null || windowList.length == 0)
- return;
-
- var dim = Math.ceil(Math.sqrt(windowList.length));
-
- var cols = dim;
- var rows = Math.ceil(windowList.length / cols);
-
- var w = root.width / dim;
- var h = root.height / rows;
-
- var i;
- var ix = 0;
- var iy = 0;
- var lastDim = 1;
-
- indexes = new Array(dim * dim);
-
- for (i = 0; i < windowList.length; ++i) {
- if (i > 0) {
- var currentDim = Math.ceil(Math.sqrt(i + 1));
- if (currentDim == lastDim) {
- if (iy < currentDim - 1) {
- ++iy;
- if (iy == currentDim - 1)
- ix = 0;
- } else {
- ++ix;
- }
- } else {
- iy = 0;
- ix = currentDim - 1;
- }
- lastDim = currentDim;
- }
-
- indexes[iy * dim + ix] = i;
- windowList[i].index = iy * dim + ix;
-
- var cx = (ix + 0.5) * w;
- var cy = (iy + 0.5) * h;
-
- windowList[i].targetScale = 0.98 * Math.min(w / windowList[i].width, h / windowList[i].height);
-
- windowList[i].targetX = (cx - windowList[i].width / 2);
- windowList[i].targetY = (cy - windowList[i].height / 2);
- }
-}
-
-function addWindow(window)
-{
- if (windowList == null)
- windowList = new Array(0);
-
- windowList.push(window);
- relayout();
-}
-
-function removeWindow(window)
-{
- var i;
- for (i = 0; i < windowList.length; ++i) {
- if (windowList[i] == window)
- break;
- }
-
- var index = windowList[i].index;
- var dim = Math.ceil(Math.sqrt(windowList.length));
- var maxY = Math.floor((windowList.length-1) / dim);
-
- var shrinking = Math.ceil(Math.sqrt(windowList.length - 1)) != dim;
-
- while (true) {
- var ix = index % dim;
- var iy = Math.floor(index / dim);
-
- if (shrinking) {
- if (iy > 0)
- --iy;
- else if (++ix == dim)
- break;
- } else {
- if (iy < maxY) {
- if (ix > 0)
- --ix;
- else
- ++iy;
- } else {
- ++ix;
- }
- }
-
- var next = iy * dim + ix;
-
- var currentIndex = indexes[index];
- var nextIndex = indexes[next];
-
- if (nextIndex == null)
- break;
-
- var temp = windowList[currentIndex];
- windowList[currentIndex] = windowList[nextIndex];
- windowList[currentIndex].index = currentIndex;
- windowList[nextIndex] = temp;
-
- index = next;
- }
-
- windowList.splice(indexes[index], 1);
- relayout();
-}