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423 lines
21 KiB
QML
423 lines
21 KiB
QML
/*
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* Copyright 2020 Michail Vourlakos <mvourlakos@gmail.com>
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*
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* This file is part of Latte-Dock
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*
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* Latte-Dock is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* Latte-Dock is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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import QtQuick 2.7
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import org.kde.plasma.plasmoid 2.0
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import org.kde.latte.core 0.2 as LatteCore
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import "./layouter" as LayouterElements
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Item {
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property Item layouts: null
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property Item animations: null
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property Item indexer: null
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readonly property int fillApplets: startLayout.fillApplets + mainLayout.fillApplets + endLayout.fillApplets
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readonly property int maxLength: root.panelAlignment === LatteCore.Types.Justify ? root.maxLength : Math.min(root.minLength, root.maxLength)
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readonly property Item startLayout: LayouterElements.AppletsContainer {
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grid: layouts.startLayout
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}
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readonly property Item mainLayout: LayouterElements.AppletsContainer {
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grid: layouts.mainLayout
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}
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readonly property Item endLayout: LayouterElements.AppletsContainer {
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grid: layouts.endLayout
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}
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//! FILLWIDTH/FILLHEIGHT COMPUTATIONS
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//! Computations in order to calculate correctly the sizes for applets
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//! that are requesting fillWidth or fillHeight
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//! qBound style function that is specialized in Layouts
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//! meaning that -1 values are ignored for fillWidth(s)/Height(s)
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function appletPreferredLength(min, pref, max){
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if (max === -1) {
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max = pref === -1 ? min : pref;
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}
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if (pref === -1) {
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pref = max === -1 ? min : pref;
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}
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return Math.min(Math.max(min,pref),max);
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}
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//! initialize AppletItems flag "inFillCalculations" in order
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//! to inform them that new calculations are taking place
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function initLayoutForFillsCalculations(layout) {
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for(var i=0; i<layout.children.length; ++i) {
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var curApplet = layout.children[i];
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if (curApplet.isAutoFillApplet) {
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curApplet.inFillCalculations = true;
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}
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}
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}
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//! during step1/pass1 all applets that provide valid metrics (minimum/preferred/maximum values)
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//! they gain a valid space in order to draw themeselves
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function computeStep1ForLayout(layout, availableSpace, sizePerApplet, noOfApplets, inMaxAutoFillCalculations) {
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for(var i=0; i<layout.children.length; ++i) {
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var curApplet = layout.children[i];
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if (curApplet.isAutoFillApplet) {
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if (curApplet && curApplet.applet && curApplet.applet.Layout) {
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var minSize = root.isVertical ? curApplet.applet.Layout.minimumHeight : curApplet.applet.Layout.minimumWidth;
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var prefSize = root.isVertical ? curApplet.applet.Layout.preferredHeight : curApplet.applet.Layout.preferredWidth;
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var maxSize = root.isVertical ? curApplet.applet.Layout.maximumHeight : curApplet.applet.Layout.maximumWidth;
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// console.log( " s3_0 " + curApplet.applet.pluginName + " : (" +minSize+","+prefSize+","+maxSize+") ");
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minSize = minSize>=0 && minSize!==Infinity ? minSize : -1;
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prefSize = minSize>=0 && prefSize!==Infinity ? prefSize : -1;
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maxSize = maxSize>=0 && maxSize!== Infinity ? maxSize : -1;
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var appliedSize = -1;
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//! check if the applet does not provide any valid metrics and for that case
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//! the system must decide what space to be given after the applets that provide
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//! nice metrics are assigned their sizes
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var systemDecide = ((minSize<0) && (prefSize<0) && (maxSize<0));
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if (!systemDecide) {
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if (noOfApplets>1) {
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appliedSize = appletPreferredLength(minSize, prefSize, maxSize);
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// console.log( " s3_1 " + curApplet.applet.pluginName + " : (" +minSize+","+prefSize+","+maxSize+") -> " + appliedSize);
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} else if (noOfApplets===1) {
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//! at this step if only one applet has remained for which the max size is not null,
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//! then for this applet we make sure the maximum size does not exceed the available space
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//! in order for the applet to not be drawn outside the boundaries
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appliedSize = appletPreferredLength(minSize, prefSize, Math.min(maxSize, sizePerApplet));
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// console.log( " s3_2 " + curApplet.applet.pluginName + " : (" +minSize+","+prefSize+","+maxSize+") -> " + appliedSize);
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}
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//! appliedSize is valid and is also lower than the availableSpace, if it is not lower then
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//! for this applet the needed space will be provided as a second pass in a fair way
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//! between all remained applets that did not gain a valid fill space
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if (appliedSize>=0 && appliedSize<=sizePerApplet) {
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var properSize = Math.min(appliedSize, availableSpace);
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var thickness = root.isVertical ? root.width : root.height;
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var adjustedSize = curApplet.isHidden ? 0 : Math.max(thickness, properSize);
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if (inMaxAutoFillCalculations) {
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curApplet.maxAutoFillLength = adjustedSize;
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} else {
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curApplet.minAutoFillLength = adjustedSize;
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}
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curApplet.inFillCalculations = false;
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availableSpace = Math.max(0, availableSpace - curApplet.maxAutoFillLength);
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noOfApplets = noOfApplets - 1;
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sizePerApplet = noOfApplets > 1 ? Math.floor(availableSpace / noOfApplets) : availableSpace;
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// console.log( " s3_3 " + curApplet.applet.pluginName + " assigned: " + curApplet.maxAutoFillLength);
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}
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}
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// console.log("s3_r " +curApplet.applet.pluginName + " : " + availableSpace + " _ " + sizePerApplet + " _ " + noOfApplets + "\n");
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}
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}
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}
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return [availableSpace, sizePerApplet, noOfApplets];
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}
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//! during step2/pass2 all the applets with fills
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//! that remained with no computations from pass1
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//! are updated with the algorithm's proposed size
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function computeStep2ForLayout(layout, sizePerApplet, noOfApplets, inMaxAutoFillCalculations) {
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if (sizePerApplet>=0) {
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if (noOfApplets === 0) {
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//! when all applets have assigned some size and there is still free space, we must find
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//! the most demanding space applet and assign the remaining space to it
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var mostDemandingAppletSize = 0;
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var mostDemandingApplet = undefined;
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//! applets with no strong opinion
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var neutralAppletsNo = 0;
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var neutralApplets = [];
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for(var i=0; i<layout.children.length; ++i) {
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var curApplet = layout.children[i];
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//! the most demanding applet is the one that has maximum size set to Infinity
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//! AND is not Neutral, meaning that it provided some valid metrics
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//! AND at the same time gained from step one the biggest space
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if (curApplet && curApplet.isAutoFillApplet && curApplet.applet && curApplet.applet.Layout) {
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var minSize = root.isVertical ? curApplet.applet.Layout.minimumHeight : curApplet.applet.Layout.minimumWidth;
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var prefSize = root.isVertical ? curApplet.applet.Layout.preferredHeight : curApplet.applet.Layout.preferredWidth;
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var maxSize = root.isVertical ? curApplet.applet.Layout.maximumHeight : curApplet.applet.Layout.maximumWidth;
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var isNeutral = (minSize<=0 && prefSize<=0);
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// console.log( " s4_0 " + curApplet.applet.pluginName + " : (" +minSize+","+prefSize+","+maxSize+") ");
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if (!isNeutral && maxSize===Infinity
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&& ((inMaxAutoFillCalculations && curApplet.maxAutoFillLength>mostDemandingAppletSize)
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|| (!inMaxAutoFillCalculations && curApplet.minAutoFillLength>mostDemandingAppletSize) )) {
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mostDemandingApplet = curApplet;
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mostDemandingAppletSize = inMaxAutoFillCalculations ? curApplet.maxAutoFillLength : curApplet.minAutoFillLength;
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} else if (isNeutral) {
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neutralAppletsNo = neutralAppletsNo + 1;
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neutralApplets.push(curApplet);
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}
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}
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}
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if (mostDemandingApplet) {
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//! the most demanding applet gains all the remaining space
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if (inMaxAutoFillCalculations) {
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mostDemandingApplet.maxAutoFillLength = mostDemandingApplet.maxAutoFillLength + sizePerApplet;
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} else {
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mostDemandingApplet.minAutoFillLength = mostDemandingApplet.minAutoFillLength + sizePerApplet;
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}
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// console.log("s4_1 "+ mostDemandingApplet.applet.pluginName + " assigned: " + mostDemandingApplet.maxAutoFillLength + "\n");
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} else if (neutralAppletsNo>0) {
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//! if no demanding applets was found then the available space is splitted equally
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//! between all neutralApplets
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var adjustedAppletSize = (sizePerApplet / neutralAppletsNo);
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for (var j=0; j<neutralApplets.length; ++j) {
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// console.log("s4_2.0 "+ neutralApplets[j].applet.pluginName + " _ " + neutralApplets[j].maxAutoFillLength + " _ " + adjustedAppletSize);
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if (inMaxAutoFillCalculations) {
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neutralApplets[j].maxAutoFillLength = neutralApplets[j].maxAutoFillLength + adjustedAppletSize;
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} else {
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neutralApplets[j].minAutoFillLength = neutralApplets[j].minAutoFillLength + adjustedAppletSize;
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}
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// console.log("s4_2 "+ neutralApplets[j].applet.pluginName + " assigned: " + sizePerApplet + "\n");
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}
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}
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} else {
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for(var i=0; i<layout.children.length; ++i) {
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var curApplet = layout.children[i];
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if (curApplet && curApplet.isAutoFillApplet && curApplet.inFillCalculations) {
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if (inMaxAutoFillCalculations) {
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curApplet.maxAutoFillLength = sizePerApplet;
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} else {
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curApplet.minAutoFillLength = sizePerApplet;
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}
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// console.log("s4_3 "+ curApplet.applet.pluginName + " assigned: " + sizePerApplet + "\n");
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curApplet.inFillCalculations = false;
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}
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}
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}
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}
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}
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//! initialize the three layouts and execute the step1/phase1
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//! it is used when the Centered (Main)Layout is used only or when the Main(Layout)
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//! is empty in Justify mode
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function initializationPhase(availableSpace, sizePerApplet, noOfApplets, inMaxAutoFillCalculations){
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if (root.panelAlignment === LatteCore.Types.Justify) {
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initLayoutForFillsCalculations(startLayout.grid);
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initLayoutForFillsCalculations(endLayout.grid);
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}
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initLayoutForFillsCalculations(mainLayout.grid);
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// console.log("s3...");
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//! first pass in order to update sizes for applet that want to fill space
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//! but their maximum metrics are lower than the sizePerApplet
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var res = computeStep1ForLayout(mainLayout.grid, availableSpace, sizePerApplet, noOfApplets, inMaxAutoFillCalculations);
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availableSpace = res[0]; sizePerApplet = res[1]; noOfApplets = res[2];
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// console.log( " i1 : " + availableSpace + " _ " + sizePerApplet + " _ " + noOfApplets );
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if (root.panelAlignment === LatteCore.Types.Justify) {
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res = computeStep1ForLayout(startLayout.grid, availableSpace, sizePerApplet, noOfApplets, inMaxAutoFillCalculations);
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availableSpace = res[0]; sizePerApplet = res[1]; noOfApplets = res[2];
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// console.log( " i2 : " + availableSpace + " _ " + sizePerApplet + " _ " + noOfApplets );
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res = computeStep1ForLayout(endLayout.grid, availableSpace, sizePerApplet, noOfApplets, inMaxAutoFillCalculations);
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availableSpace = res[0]; sizePerApplet = res[1]; noOfApplets = res[2];
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// console.log( " i3 : " + availableSpace + " _ " + sizePerApplet + " _ " + noOfApplets );
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}
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return [availableSpace, sizePerApplet, noOfApplets];
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}
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function updateFillAppletsWithTwoSteps(inMaxAutoFillCalculations) {
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var noA = startLayout.fillApplets + mainLayout.fillApplets + endLayout.fillApplets;
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var max_length = inMaxAutoFillCalculations ? root.maxLength : root.minLength
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// console.log(" S3 _ SIZES ::: " + max_length + " ___ " + inMaxAutoFillCalculations + " __ " + startLayout.sizeWithNoFillApplets + " ___ " + mainLayout.sizeWithNoFillApplets + " ___ " + endLayout.sizeWithNoFillApplets);
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//! compute the two free spaces around the centered layout
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//! they are called start and end accordingly
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var halfMainLayout = mainLayout.sizeWithNoFillApplets / 2;
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var availableSpaceStart = Math.max(0, max_length/2 - startLayout.sizeWithNoFillApplets - halfMainLayout - root.panelEdgeSpacing/2);
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var availableSpaceEnd = Math.max(0, max_length/2 - endLayout.sizeWithNoFillApplets - halfMainLayout - root.panelEdgeSpacing/2);
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var availableSpace;
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if (mainLayout.fillApplets === 0 || (startLayout.shownApplets ===0 && endLayout.shownApplets===0)){
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//! no fill applets in main OR we are in alignment that all applets are in main
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availableSpace = availableSpaceStart + availableSpaceEnd - mainLayout.sizeWithNoFillApplets;
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} else {
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//! use the minimum available space in order to avoid overlaps
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availableSpace = 2 * Math.min(availableSpaceStart, availableSpaceEnd) - mainLayout.sizeWithNoFillApplets;
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}
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var sizePerAppletMain = mainLayout.fillApplets > 0 ? availableSpace / noA : 0 ;
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var noStart = startLayout.fillApplets;
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var noMain = mainLayout.fillApplets;
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var noEnd = endLayout.fillApplets;
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//! initialize the computations
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initLayoutForFillsCalculations(startLayout.grid, inMaxAutoFillCalculations);
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initLayoutForFillsCalculations(mainLayout.grid, inMaxAutoFillCalculations);
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initLayoutForFillsCalculations(endLayout.grid, inMaxAutoFillCalculations);
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var res;
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//! first pass
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if (mainLayout.fillApplets > 0){
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res = computeStep1ForLayout(mainLayout.grid, availableSpace, sizePerAppletMain, noMain, inMaxAutoFillCalculations);
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sizePerAppletMain = res[1]; noMain = res[2];
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var dif = (availableSpace - res[0]) / 2;
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availableSpaceStart = availableSpaceStart - dif;
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availableSpaceEnd = availableSpaceEnd - dif;
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}
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var sizePerAppletStart = startLayout.fillApplets > 0 ? availableSpaceStart / noStart : 0 ;
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var sizePerAppletEnd = endLayout.fillApplets > 0 ? availableSpaceEnd / noEnd : 0 ;
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if (startLayout.fillApplets > 0) {
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res = computeStep1ForLayout(startLayout.grid, availableSpaceStart, sizePerAppletStart, noStart, inMaxAutoFillCalculations);
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availableSpaceStart = res[0]; sizePerAppletStart = res[1]; noStart = res[2];
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}
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if (endLayout.fillApplets > 0) {
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res = computeStep1ForLayout(endLayout.grid, availableSpaceEnd, sizePerAppletEnd, noEnd, inMaxAutoFillCalculations);
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availableSpaceEnd = res[0]; sizePerAppletEnd = res[1]; noEnd = res[2];
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}
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////
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//! second pass
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// console.log(" S ::: " +startLayout.fillApplets + " _ " + sizePerAppletStart + " _ " + noStart);
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if (mainLayout.fillApplets > 0) {
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computeStep2ForLayout(mainLayout.grid, sizePerAppletMain, noMain, inMaxAutoFillCalculations); //default behavior
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}
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if (startLayout.fillApplets > 0) {
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if (mainLayout.fillApplets > 0) {
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//! adjust final fill applet size in mainlayouts final length
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sizePerAppletStart = ((max_length/2) - (mainLayout.grid.length/2) - startLayout.sizeWithNoFillApplets) / noStart;
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}
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computeStep2ForLayout(startLayout.grid, sizePerAppletStart, noStart, inMaxAutoFillCalculations);
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}
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if (endLayout.fillApplets > 0) {
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if (mainLayout.fillApplets > 0) {
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//! adjust final fill applet size in mainlayouts final length
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sizePerAppletEnd = ((max_length/2) - (mainLayout.grid.length/2) - endLayout.sizeWithNoFillApplets) / noEnd;
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}
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computeStep2ForLayout(endLayout.grid, sizePerAppletEnd, noEnd, inMaxAutoFillCalculations);
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}
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}
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function updateFillAppletsWithOneStep(inMaxAutoFillCalculations) {
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var max_length = inMaxAutoFillCalculations ? root.maxLength : root.minLength
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var noA = startLayout.fillApplets + mainLayout.fillApplets + endLayout.fillApplets;
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// console.log(" S2 _ SIZES ::: " + max_length + " ___ " + inMaxAutoFillCalculations + " __ " + startLayout.sizeWithNoFillApplets + " ___ " + mainLayout.sizeWithNoFillApplets + " ___ " + endLayout.sizeWithNoFillApplets);
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var availableSpace = Math.max(0, max_length - startLayout.sizeWithNoFillApplets - mainLayout.sizeWithNoFillApplets - endLayout.sizeWithNoFillApplets - root.panelEdgeSpacing);
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var sizePerApplet = availableSpace / noA;
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var res = initializationPhase(availableSpace, sizePerApplet, noA, inMaxAutoFillCalculations);
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availableSpace = res[0]; sizePerApplet = res[1]; noA = res[2];
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// console.log("s4...");
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//! after step1 there is a chance that all applets were assigned a valid space
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//! but at the same time some space remained free. In such case we make sure
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//! that remained space will be assigned to the most demanding applet.
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//! This is achieved by <layout>No values. For step2 passing value!=0
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//! means default step2 behavior BUT value=0 means that remained space
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//! must be also assigned at the end.
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var remainedSpace = (noA === 0 && sizePerApplet > 0) ? true : false
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var startNo = -1;
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var mainNo = -1;
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var endNo = -1;
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if (remainedSpace) {
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if (startLayout.fillApplets > 0) {
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startNo = 0;
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} else if (lendLayout.fillApplets > 0) {
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endNo = 0;
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} else if (mainLayout.fillApplets > 0) {
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mainNo = 0;
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}
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}
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//! second pass in order to update sizes for applet that want to fill space
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//! these applets get the direct division of the available free space that
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//! remained from step1 OR the the free available space that no applet requested yet
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computeStep2ForLayout(startLayout.grid, sizePerApplet, startNo, inMaxAutoFillCalculations); //default behavior
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computeStep2ForLayout(mainLayout.grid, sizePerApplet, mainNo, inMaxAutoFillCalculations); //default behavior
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computeStep2ForLayout(endLayout.grid, sizePerApplet, endNo, inMaxAutoFillCalculations); //default behavior
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//console.log("s5...");
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}
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function _updateSizeForAppletsInFill() {
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if (inNormalFillCalculationsState) {
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// console.log("-------------");
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// console.log("s1...");
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var noA = startLayout.fillApplets + mainLayout.fillApplets + endLayout.fillApplets;
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if (noA === 0) {
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return;
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}
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var use_maximum_length = true;
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if (mainLayout.shownApplets === 0 || root.panelAlignment !== LatteCore.Types.Justify) {
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updateFillAppletsWithOneStep(use_maximum_length);
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updateFillAppletsWithOneStep(!use_maximum_length);
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} else {
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//! Justify mode in all remaining cases
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updateFillAppletsWithTwoSteps(use_maximum_length);
|
|
updateFillAppletsWithTwoSteps(!use_maximum_length);
|
|
}
|
|
}
|
|
}
|
|
}
|