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//===========================================
// Lumina-DE source code
// Copyright (c) 2015, Ken Moore
// Available under the 3-clause BSD license
// See the LICENSE file for full details
//===========================================
#include "LDesktopPluginSpace.h"
#include "LSession.h"
#include "desktop-plugins/NewDP.h"
#include <LuminaXDG.h>
#include <QDesktopWidget>
#define DEBUG 0
// ===================
// PUBLIC
// ===================
LDesktopPluginSpace::LDesktopPluginSpace(QWidget *parent) : QWidget(parent){
this->setObjectName("LuminaDesktopPluginSpace");
this->setStyleSheet("QWidget#LuminaDesktopPluginSpace{ border: none; background: transparent; }");
this->setAcceptDrops(true);
this->setContextMenuPolicy(Qt::NoContextMenu);
this->setMouseTracking(true);
TopToBottom = true;
plugsettings = LSession::handle()->DesktopPluginSettings();
}
LDesktopPluginSpace::~LDesktopPluginSpace(){
}
void LDesktopPluginSpace::LoadItems(QStringList plugs, QStringList files){
if(DEBUG){ qDebug() << "Loading Desktop Items:" << plugs << files; }
bool changes = false;
if(plugs != plugins){ plugins = plugs; changes = true; }
if(files != deskitems){ deskitems = files; changes = true; }
if(changes){ QTimer::singleShot(0,this, SLOT(reloadPlugins())); }
}
void LDesktopPluginSpace::SetIconSize(int size){
if(DEBUG){ qDebug() << "Set Desktop Icon Size:" << size; }
QSize newsize = calculateItemSize(size);
itemSize = newsize; //save this for all the later icons which are generated (grid size)
UpdateGeom();
//Now re-set the item icon size
QTimer::singleShot(0,this, SLOT(reloadPlugins()) );
}
void LDesktopPluginSpace::cleanup(){
//Perform any final cleanup actions here
for(int i=0; i<ITEMS.length(); i++){
delete ITEMS.takeAt(i);
i--;
}
plugins.clear();
deskitems.clear();
}
// ===================
// PUBLIC SLOTS
// ===================
void LDesktopPluginSpace::UpdateGeom(){
if(DEBUG){ qDebug() << "Update Desktop Geom:"; }
//Currently no special checks - might need to add validation of all current plugin geometries in the future
}
// ===================
// PRIVATE
// ===================
QSize LDesktopPluginSpace::calculateItemSize(int icosize){
//Note: This returns the size in numbers of cells (width = columnspan, height = rowspan)
QSize sz;
sz.setWidth(1.8*icosize);
sz.setWidth( RoundUp(sz.width()/GRIDSIZE)); //always round up to cell numbers
sz.setHeight(icosize+ 2.3*this->fontMetrics().height() );
sz.setHeight( RoundUp(sz.height()/GRIDSIZE)); //always round up to cell number
return sz;
}
void LDesktopPluginSpace::addDesktopItem(QString filepath){
addDesktopPlugin("applauncher::"+filepath+"---dlink"+QString::number(LSession::handle()->desktop()->screenNumber(this)) );
}
void LDesktopPluginSpace::addDesktopPlugin(QString plugID){
//This is used for generic plugins (QWidget-based)
if(DEBUG){ qDebug() << "Adding Desktop Plugin:" << plugID; }
LDPlugin *plug = NewDP::createPlugin(plugID, this);
plug->setWhatsThis(plugID);
//Now get the geometry for the plugin
QRect geom = plug->loadPluginGeometry(); //in grid coords
if(geom.isNull()){
//No previous location - need to calculate initial geom
QSize sz = plug->sizeHint();
if(plugID.startsWith("applauncher::") ){ sz = itemSize*GRIDSIZE; }
geom.setWidth( RoundUp(sz.width()/GRIDSIZE) );
geom.setHeight( RoundUp(sz.height()/GRIDSIZE) );
geom.moveTo( findOpenSpot(geom.width(), geom.height()) );
}else if(!ValidGeometry(plugID, gridToGeom(geom)) ){
//Find a new location for the plugin (saved location is invalid)
QPoint pt = findOpenSpot(geom.width(), geom.height(), geom.y()-2, geom.x()-2); //try to get it within the same general area
geom.moveTo(pt);
}
if(geom.x() < 0 || geom.y() < 0){
qDebug() << "No available space for desktop plugin:" << plugID << " - IGNORING";
delete plug;
}else{
if(DEBUG){ qDebug() << " - New Plugin Geometry (grid):" << geom; }
//Now place the item in the proper spot/size
plug->setGeometry( gridToGeom(geom) );
plug->show();
if(DEBUG){ qDebug() << " - New Plugin Geometry (px):" << plug->geometry(); }
ITEMS << plug;
connect(plug, SIGNAL(StartMoving(QString)), this, SLOT(StartItemMove(QString)) );
connect(plug, SIGNAL(StartResizing(QString)), this, SLOT(StartItemResize(QString)) );
connect(plug, SIGNAL(RemovePlugin(QString)), this, SLOT(RemoveItem(QString)) );
}
}
QPoint LDesktopPluginSpace::findOpenSpot(int gridwidth, int gridheight, int startRow, int startCol){
//Note about the return QPoint: x() is the column number, y() is the row number
QPoint pt(0,0);
int row = startRow; int col = startCol;
if(row<0){ row = 0; } //just in case - since this can be recursively called
if(col<0){ col = 0; } //just in case - since this can be recursively called
bool found = false;
int rowCount, colCount;
rowCount = RoundUp(this->height()/GRIDSIZE);
colCount = RoundUp(this->width()/GRIDSIZE);
QRect geom(0, 0, gridwidth*GRIDSIZE, gridheight*GRIDSIZE); //origin point will be adjusted in a moment
if(DEBUG){ qDebug() << "Search for plugin space:" << rowCount << colCount << gridheight << gridwidth << this->size(); }
if(TopToBottom){
//Arrange Top->Bottom
while(col<(colCount-gridwidth) && !found){
while(row<(rowCount-gridheight) && !found){
bool ok = true;
geom.moveTo(col*GRIDSIZE, row*GRIDSIZE);
//qDebug() << " - Check Geom:" << geom << col << row;
//Check all the existing items to ensure no overlap
for(int i=0; i<ITEMS.length() && ok; i++){
if(geom.intersects(ITEMS[i]->geometry())){
//Collision - move the next searchable row/column index
ok = false;
row = posToGrid(ITEMS[i]->geometry().bottomLeft()).y(); //use bottom edge for next search
}
}
if(ok){ pt = QPoint(col,row); found = true; } //found an open spot
row++;
}
if(!found){ col++; row=0; } //go to the next column
}
}else{
//Arrange Left->Right
while(row<(rowCount-gridheight) && !found){
while(col<(colCount-gridwidth) && !found){
bool ok = true;
geom.moveTo(col*GRIDSIZE, row*GRIDSIZE);
//Check all the existing items to ensure no overlap
for(int i=0; i<ITEMS.length() && ok; i++){
if(geom.intersects(ITEMS[i]->geometry())){
//Collision - move the next searchable row/column index
ok = false;
col = posToGrid(ITEMS[i]->geometry().topRight()).x(); // Fill according to row/column
}
}
if(ok){ pt = QPoint(col,row); found = true; } //found an open spot
else{ col++; }
}
if(!found){ row++; col=0;} //go to the next row
}
}
if(!found){
//Decrease the size of the item by 1x1 grid points and try again
if(gridwidth>2 && gridheight>2){
pt = findOpenSpot(gridwidth-1, gridheight-1, 0, 0);
}else{
pt.setX(-1); pt.setY(-1); //invalid
qDebug() << "Could not find an open spot for a desktop plugin:" << gridwidth << gridheight << startRow << startCol;
}
}
return pt;
}
// ===================
// PRIVATE SLOTS
// ===================
void LDesktopPluginSpace::reloadPlugins(){
//Remove any plugins as necessary
QStringList plugs = plugins;
QStringList items = deskitems;
for(int i=0; i<ITEMS.length(); i++){
if(plugs.contains(ITEMS[i]->whatsThis())){ plugs.removeAll(ITEMS[i]->whatsThis()); }
else if(ITEMS[i]->whatsThis().contains("---dlink") && items.contains(ITEMS[i]->whatsThis().section("---",0,0).section("::",1,50)) ){
//Account for the variation in the Plugin ID for desktop files
items.removeAll(ITEMS[i]->whatsThis().section("---",0,0).section("::",1,50));
}else{ ITEMS[i]->removeSettings(true); delete ITEMS.takeAt(i); i--; } //this is considered a permanent removal (cleans settings)
}
//Now create any new items
//First load the plugins (almost always have fixed locations)
for(int i=0; i<plugs.length(); i++){
addDesktopPlugin(plugs[i]);
}
//Now load the desktop shortcuts (fill in the gaps as needed)
for(int i=0; i<items.length(); i++){
addDesktopItem(items[i]);
}
}
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