/usr/share/kde4/apps/plasma/plasmoids/org.kde.active.activityscreen/contents/code/LayoutManager.js is in plasma-widgets-active 2.0+git2012021101-0ubuntu4~ppa3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright 2011 Marco Martin <mart@kde.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Library General Public License as
* published by the Free Software Foundation; either version 2, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details
*
* You should have received a copy of the GNU Library General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
.pragma library
var positions = new Array()
var cellSize = new Object()
cellSize.width = 178
cellSize.height = 158
var resultsFlow
var itemsConfig
//bookkeeping for the item groups
var itemGroups = new Object()
function restore()
{
itemsConfig = new Object()
var configString = String(plasmoid.readConfig("ItemsGeometries"))
//array, a cell for encoded item geometry
var itemsStrings = configString.split(";")
for (var i=0; i<itemsStrings.length; i++) {
//[id, encoded geometry]
var idConfig = itemsStrings[i].split(":")
idConfig[0] = idConfig[0].replace("%3A", ":")
if (idConfig.length < 2) {
continue
}
//array [x, y, width, height]
var rect = idConfig[1].split(",")
if (rect.length < 4) {
continue
}
var geomObject = new Object()
geomObject.x = rect[0]
geomObject.y = rect[1]
geomObject.width = rect[2]
geomObject.height = rect[3]
itemsConfig[idConfig[0]] = geomObject
}
}
function save()
{
var configString = String()
for (id in itemsConfig) {
var rect = itemsConfig[id]
configString += id.replace(":", "%3A") + ":" + rect.x + "," + rect.y + "," + rect.width + "," + rect.height + ";"
}
//print("saving "+configString)
plasmoid.writeConfig("ItemsGeometries", configString)
}
function resetPositions()
{
positions = new Array()
}
//returns the available size at a given position
function availableSpace(x, y, width, height)
{
var row = Math.round(x/cellSize.width)
var column = Math.round(y/cellSize.height)
var rowsWidth = Math.ceil(width/cellSize.width)
var columnsHeight = Math.ceil(height/cellSize.height)
var availableSize = new Object
availableSize.width = 0
availableSize.height = 0
if (x < 0 || y < 0) {
return availableSize;
} else if (positions[row] == undefined) {
availableSize.width = width
availableSize.height = height
return availableSize;
} else if (!positions[row][column]) {
for (var w=0; w < rowsWidth; w++) {
//occupied?
var free = true;
if (positions[row+w] && positions[row+w][column]) {
break;
} else {
availableSize.width = w+1
}
}
for (var h=0; h < columnsHeight; h++) {
//occupied?
var free = true
//using availableSize.width instead of rowsWidth or the result will be 0
for (var i = row; i < row+availableSize.width; ++i) {
if (positions[i] && positions[i][column+h]) {
free = false
break
}
}
if (free) {
availableSize.height = h+1
} else {
//print("occupied"+row+" "+column+" "+h+" "+positions[row][column+h]+" "+availableSize.height)
break
}
}
}
availableSize.width *= cellSize.width
availableSize.height *= cellSize.height
//don't make it overflow
availableSize.width = Math.min(availableSize.width,
(resultsFlow.width-row*cellSize.width))
return availableSize
}
function setSpaceAvailable(x, y, width, height, available)
{
var row = Math.round(x/cellSize.width)
var column = Math.round(y/cellSize.height)
var rowsWidth = Math.round(width/cellSize.width)
var columnsHeight = Math.round(height/cellSize.height)
for (var i = row; i<row+rowsWidth; ++i) {
if (!positions[i]) {
positions[i] = new Array()
}
for (var j = column; j<column+columnsHeight; ++j) {
positions[i][j] = !available
//print("set "+i+" "+j+" "+!available)
}
}
}
function normalizeItemPosition(item)
{
var x = Math.max(0, Math.round(item.x/cellSize.width)*cellSize.width)
var y = Math.max(0, Math.round(item.y/cellSize.height)*cellSize.height)
var width = Math.max(cellSize.width, Math.round(item.width/cellSize.width)*cellSize.width)
var height = Math.max(cellSize.height, Math.round(item.height/cellSize.height)*cellSize.height)
item.x = x
item.y = y
/*item.width = width
item.height = height*/
}
function positionItem(item)
{
var x = Math.max(0, Math.round(item.x/cellSize.width)*cellSize.width)
var y = Math.max(0, Math.round(item.y/cellSize.height)*cellSize.height)
var forwardX = x
var forwardY = y
var backX = x - cellSize.width
var backY = y
var avail
while (1) {
//look forward
var forwardAvail = availableSpace(forwardX, forwardY,
Math.max(item.minimumWidth, item.width),
Math.max(item.minimumHeight, item.height))
//print("checking forward "+forwardX/cellSize.width+" "+forwardY/cellSize.height+" "+forwardAvail.width/cellSize.width+" "+forwardAvail.height/cellSize.height)
//print("response: forwardAvail: "+forwardAvail.width+"x"+forwardAvail.height+" minimumSize: "+item.minimumWidth+"x"+item.minimumHeight+"\n\n")
if (forwardAvail.width >= item.minimumWidth &&
forwardAvail.height >= item.minimumHeight) {
x = forwardX
y = forwardY
avail = forwardAvail
break
}
forwardX += cellSize.width
//new line
if (forwardX+item.width > resultsFlow.width) {
forwardX = 0
forwardY += cellSize.height
//forward positions exausted
//scrolling now
/*if (forwardY > resultsFlow.height) {
break;
}*/
}
//backwards positions exausted
if (backY < 0) {
continue
}
//look backwards
var backAvail = availableSpace(backX, backY,
Math.max(item.minimumWidth, item.width),
Math.max(item.minimumHeight, item.height))
//print("checking backwards "+backX/cellSize.width+" "+backY/cellSize.height+" "+backAvail.width/cellSize.width+" "+backAvail.height/cellSize.height)
if (backAvail.width >= item.minimumWidth &&
backAvail.height >= item.minimumHeight) {
x = backX
y = backY
avail = backAvail
break
}
backX -= cellSize.width
if (backX < 0) {
backX = resultsFlow.width - item.width
backY -= cellSize.height
}
}
var width = Math.max(cellSize.width*Math.max(1, Math.ceil(item.minimumWidth/cellSize.width)),
Math.round(Math.min(avail.width, item.width)/cellSize.width)*cellSize.width)
var height = Math.max(cellSize.height*Math.max(1, Math.ceil(item.minimumHeight/cellSize.height)),
Math.round(Math.min(avail.height, item.height)/cellSize.height)*cellSize.height)
setSpaceAvailable(x, y, width, height, false)
item.x = x
item.y = y
//resultsFlow.height = Math.max(resultsFlow.height, y+cellSize.height)
item.width = width
item.height = height
var rect = new Object()
rect.x = item.x
rect.y = item.y
rect.width = item.width
rect.height = item.height
//save only things that actually have a category (exclude the placeholder)
if (item.category) {
itemsConfig[item.category] = rect
}
}
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