1 /****************************************************************************
3 ** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
4 ** Contact: http://www.qt-project.org/legal
6 ** This file is part of the examples of the Qt Toolkit.
8 ** $QT_BEGIN_LICENSE:BSD$
9 ** You may use this file under the terms of the BSD license as follows:
11 ** "Redistribution and use in source and binary forms, with or without
12 ** modification, are permitted provided that the following conditions are
14 ** * Redistributions of source code must retain the above copyright
15 ** notice, this list of conditions and the following disclaimer.
16 ** * Redistributions in binary form must reproduce the above copyright
17 ** notice, this list of conditions and the following disclaimer in
18 ** the documentation and/or other materials provided with the
20 ** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
21 ** of its contributors may be used to endorse or promote products derived
22 ** from this software without specific prior written permission.
25 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
26 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
27 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
28 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
29 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
30 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
31 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
32 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
33 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
34 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
35 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
39 ****************************************************************************/
41 var windowList = null;
45 if (windowList === null || windowList.length == 0)
48 var dim = Math.ceil(Math.sqrt(windowList.length));
51 var rows = Math.ceil(windowList.length / cols);
53 var w = root.width / dim;
54 var h = root.height / rows;
61 indexes = new Array(dim * dim);
63 for (i = 0; i < windowList.length; ++i) {
65 var currentDim = Math.ceil(Math.sqrt(i + 1));
66 if (currentDim == lastDim) {
67 if (iy < currentDim - 1) {
69 if (iy == currentDim - 1)
81 indexes[iy * dim + ix] = i;
82 windowList[i].index = iy * dim + ix;
84 var cx = (ix + 0.5) * w;
85 var cy = (iy + 0.5) * h;
87 windowList[i].targetScale = 0.98 * Math.min(w / windowList[i].width, h / windowList[i].height);
89 windowList[i].targetX = (cx - windowList[i].width / 2);
90 windowList[i].targetY = (cy - windowList[i].height / 2);
94 function addWindow(window)
96 if (windowList == null)
97 windowList = new Array(0);
99 windowList.push(window);
103 function removeWindow(window)
106 for (i = 0; i < windowList.length; ++i) {
107 if (windowList[i] == window)
111 var index = windowList[i].index;
112 var dim = Math.ceil(Math.sqrt(windowList.length));
113 var maxY = Math.floor((windowList.length-1) / dim);
115 var shrinking = Math.ceil(Math.sqrt(windowList.length - 1)) != dim;
118 var ix = index % dim;
119 var iy = Math.floor(index / dim);
124 else if (++ix == dim)
137 var next = iy * dim + ix;
139 var currentIndex = indexes[index];
140 var nextIndex = indexes[next];
142 if (nextIndex == null)
145 var temp = windowList[currentIndex];
146 windowList[currentIndex] = windowList[nextIndex];
147 windowList[currentIndex].index = currentIndex;
148 windowList[nextIndex] = temp;
153 windowList.splice(indexes[index], 1);