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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 "MainUI.h"
#include "ui_MainUI.h"
#include <LuminaXDG.h>
#include <LuminaUtils.h>
#include <QTimer>
MainUI::MainUI() : QMainWindow(), ui(new Ui::MainUI){
ui->setupUi(this);
loadIcons();
//Fill the location list with the valid entries
ui->combo_location->clear();
ui->combo_location->addItem(tr("Right Of"), "--right-of");
ui->combo_location->addItem(tr("Left Of"), "--left-of");
connect(ui->push_close, SIGNAL(clicked()), this, SLOT(close()) );
connect(ui->push_rescan, SIGNAL(clicked()), this, SLOT(UpdateScreens()) );
connect(ui->push_activate, SIGNAL(clicked()), this, SLOT(ActivateScreen()) );
connect(ui->tool_deactivate, SIGNAL(clicked()), this, SLOT(DeactivateScreen()) );
connect(ui->tool_moveleft, SIGNAL(clicked()), this, SLOT(MoveScreenLeft()) );
connect(ui->tool_moveright, SIGNAL(clicked()), this, SLOT(MoveScreenRight()) );
connect(ui->tool_applyconfig, SIGNAL(clicked()), this, SLOT(ApplyChanges()) );
connect(ui->list_screens, SIGNAL(itemSelectionChanged()),this, SLOT(ScreenSelected()) );
QTimer::singleShot(0, this, SLOT(UpdateScreens()) );
}
MainUI::~MainUI(){
}
void MainUI::loadIcons(){
this->setWindowIcon( LXDG::findIcon("preferences-system-windows-actions","") );
ui->tool_deactivate->setIcon( LXDG::findIcon("list-remove","") );
ui->tool_moveleft->setIcon( LXDG::findIcon("arrow-left","") );
ui->tool_moveright->setIcon( LXDG::findIcon("arrow-right","") );
ui->push_activate->setIcon( LXDG::findIcon("list-add","") );
ui->push_rescan->setIcon( LXDG::findIcon("view-refresh","") );
ui->push_close->setIcon( LXDG::findIcon("window-close","") );
ui->tabWidget->setTabIcon(0, LXDG::findIcon("preferences-desktop-display","") );
ui->tabWidget->setTabIcon(1, LXDG::findIcon("list-add","") );
ui->tool_applyconfig->setIcon( LXDG::findIcon("dialog-ok-apply","") );
}
QStringList MainUI::currentOpts(){
//Read all the settings and create the xrandr options to maintain these settings
QStringList opts;
for(int i=0; i<SCREENS.length(); i++){
if(SCREENS[i].order <0){ continue; } //skip this screen - non-active
opts << "--output" << SCREENS[i].ID << "--mode" << QString::number(SCREENS[i].geom.width())+"x"+QString::number(SCREENS[i].geom.height());
if(SCREENS[i].order > 0){
//Get the ID of the previous screen
QString id;
for(int j=0; j<SCREENS.length(); j++){
if(SCREENS[j].order == SCREENS[i].order-1){ id = SCREENS[j].ID; break;}
}
if(!id.isEmpty()){ opts << "--right-of" << id; }
}
}
return opts;
}
ScreenInfo MainUI::currentScreenInfo(){
QListWidgetItem *item = ui->list_screens->currentItem();
if(item!=0){
for(int i=0; i<SCREENS.length(); i++){
if(SCREENS[i].ID==item->whatsThis()){ return SCREENS[i]; }
}
}
//Fallback when nothing found/selected
return ScreenInfo();
}
void MainUI::UpdateScreens(){
//First probe the server for current screens
SCREENS.clear();
QStringList info = LUtils::getCmdOutput("xrandr -q");
ScreenInfo cscreen;
for(int i=0; i<info.length(); i++){
if(info[i].contains("connected") ){
//qDebug() << "xrandr info:" << info[i];
if(!cscreen.ID.isEmpty()){
SCREENS << cscreen; //current screen finished - save it into the array
cscreen = ScreenInfo(); //Now create a new structure
}
//qDebug() << "Line:" << info[i];
QString dev = info[i].section(" ",0,0); //device ID
//The device resolution can be either the 3rd or 4th output - check both
QString devres = info[i].section(" ",2,2, QString::SectionSkipEmpty);
if(!devres.contains("x")){ devres = info[i].section(" ",3,3,QString::SectionSkipEmpty); }
if(!devres.contains("x")){ devres.clear(); }
qDebug() << " - ID:" <<dev << "Current Geometry:" << devres;
//qDebug() << " - Res:" << devres;
if( !devres.contains("x") || !devres.contains("+") ){ devres.clear(); }
//qDebug() << " - Res (modified):" << devres;
if(info[i].contains(" disconnected ") && !devres.isEmpty() ){
//Disable this device and restart (disconnected, but still attached to the X server)
DeactivateScreen(dev);
UpdateScreens();
return;
}else if( !devres.isEmpty() ){
//Device that is connected and attached (has a resolution)
qDebug() << "Create new Screen entry:" << dev << devres;
cscreen.ID = dev;
//Note: devres format: "<width>x<height>+<xoffset>+<yoffset>"
cscreen.geom.setRect( devres.section("+",-2,-2).toInt(), devres.section("+",-1,-1).toInt(), devres.section("x",0,0).toInt(), devres.section("+",0,0).section("x",1,1).toInt() );
}else if(info[i].contains(" connected")){
//Device that is connected, but not attached
qDebug() << "Create new Screen entry:" << dev << "none";
cscreen.ID = dev;
cscreen.order = -2; //flag this right now as a non-active screen
}
}else if( !cscreen.ID.isEmpty() && info[i].section("\t",0,0,QString::SectionSkipEmpty).contains("x")){
//available resolution for a device
cscreen.resList << info[i].section("\t",0,0,QString::SectionSkipEmpty);
}
}
if(!cscreen.ID.isEmpty()){ SCREENS << cscreen; } //make sure to add the last screen to the array
//Now go through the screens and arrange them in order from left->right in the UI
bool found = true;
int xoffset = 0; //start at 0
int cnum = 0;
QString csel = "";
if(ui->list_screens->currentItem()!=0){ csel = ui->list_screens->currentItem()->whatsThis(); }
ui->list_screens->clear();
while(found){
found = false; //make sure to break out if a screen is not found
for(int i=0; i<SCREENS.length(); i++){
if(SCREENS[i].order != -1){} //already evaluated - skip it
else if(SCREENS[i].geom.x()==xoffset){
found = true; //make sure to look for the next one
xoffset = xoffset+SCREENS[i].geom.width(); //next number to look for
SCREENS[i].order = cnum; //assign the currrent order to it
cnum++; //get ready for the next one
QListWidgetItem *it = new QListWidgetItem();
it->setTextAlignment(Qt::AlignCenter);
it->setText( SCREENS[i].ID+"\n ("+QString::number(SCREENS[i].geom.width())+"x"+QString::number(SCREENS[i].geom.height())+") " );
it->setWhatsThis(SCREENS[i].ID);
ui->list_screens->addItem(it);
if(SCREENS[i].ID==csel){ ui->list_screens->setCurrentItem(it); }
}
}
}
//Now update the available/current screens in the UI
ui->combo_availscreens->clear();
ui->combo_cscreens->clear();
for(int i=0; i<SCREENS.length(); i++){
if(SCREENS[i].order<0){
ui->combo_availscreens->addItem(SCREENS[i].ID);
}else{
ui->combo_cscreens->addItem(SCREENS[i].ID);
}
}
if(ui->combo_availscreens->count()<1){
ui->group_avail->setVisible(false);
ui->tabWidget->setCurrentIndex(0);
ui->tabWidget->setTabEnabled(1,false);
}else{
ui->group_avail->setVisible(true);
ui->tabWidget->setTabEnabled(1,true);
}
if(ui->list_screens->currentItem()==0){ ui->list_screens->setCurrentRow(0); }
ScreenSelected(); //update buttons
}
void MainUI::ScreenSelected(){
QListWidgetItem *item = ui->list_screens->currentItem();
if(item==0){
//nothing selected
ui->tool_deactivate->setEnabled(false);
ui->tool_moveleft->setEnabled(false);
ui->tool_moveright->setEnabled(false);
ui->tab_config->setEnabled(false);
}else{
//Item selected
ui->tool_deactivate->setEnabled(ui->list_screens->count()>1);
ui->tool_moveleft->setEnabled(ui->list_screens->row(item) > 0);
ui->tool_moveright->setEnabled(ui->list_screens->row(item) < (ui->list_screens->count()-1));
ui->tab_config->setEnabled(true);
//Update the info available on the config tab
ScreenInfo cur = currentScreenInfo();
ui->combo_resolution->clear();
QString cres = QString::number(cur.geom.width())+"x"+QString::number(cur.geom.height());
for(int i=0; i<cur.resList.length(); i++){
QString res = cur.resList[i].section(" ",0,0, QString::SectionSkipEmpty);
if(cur.resList[i].contains("+")){ ui->combo_resolution->addItem( QString(tr("%1 (Recommended)")).arg(res), res); }
else{ui->combo_resolution->addItem(res, res); }
if(cur.resList[i].contains(cres)){ ui->combo_resolution->setCurrentIndex(i); }
}
}
}
void MainUI::MoveScreenLeft(){
QListWidgetItem *item = ui->list_screens->currentItem();
if(item==0){ return; } //no selection
//Get the current ID
QString CID = item->whatsThis();
//Now get the ID of the one on the left
item = ui->list_screens->item( ui->list_screens->row(item)-1 );
if(item == 0){ return; } //no item on the left (can't go left)
QString LID = item->whatsThis(); //left ID
//Adjust the order of the two screens
for(int i=0; i<SCREENS.length(); i++){
if(SCREENS[i].ID == CID){ SCREENS[i].order = SCREENS[i].order-1; }
else if(SCREENS[i].ID==LID){ SCREENS[i].order = SCREENS[i].order+1; }
}
//Now run the command
QStringList opts = currentOpts();
LUtils::runCmd("xrandr", opts);
//Now run the command
//LUtils::runCmd("xrandr", QStringList() << "--output" << CID << "--left-of" << LID);
QTimer::singleShot(500, this, SLOT(UpdateScreens()) );
}
void MainUI::MoveScreenRight(){
QListWidgetItem *item = ui->list_screens->currentItem();
if(item==0){ return; } //no selection
//Get the current ID
QString CID = item->whatsThis();
//Now get the ID of the one on the left
item = ui->list_screens->item( ui->list_screens->row(item)+1 );
if(item == 0){ return; } //no item on the right (can't go right)
QString RID = item->whatsThis(); //right ID
//Adjust the order of the two screens
for(int i=0; i<SCREENS.length(); i++){
if(SCREENS[i].ID == RID){ SCREENS[i].order = SCREENS[i].order-1; }
else if(SCREENS[i].ID==CID){ SCREENS[i].order = SCREENS[i].order+1; }
}
//Now run the command
QStringList opts = currentOpts();
LUtils::runCmd("xrandr", opts);
QTimer::singleShot(500, this, SLOT(UpdateScreens()) );
}
void MainUI::DeactivateScreen(QString device){
if(device.isEmpty()){
//Get the currently selected device
QListWidgetItem *item = ui->list_screens->currentItem();
if(item==0){ return; } //no selection
//Get the current ID
device = item->whatsThis();
}
if(device.isEmpty()){ return; } //nothing found
//Remove the screen from the settings
for(int i=0; i<SCREENS.length(); i++){
if(SCREENS[i].ID==device){ SCREENS.removeAt(i); break; }
}
//Now run the command
QStringList opts = currentOpts();
opts << "--output" << device << "--off";
LUtils::runCmd("xrandr", opts);
QTimer::singleShot(500, this, SLOT(UpdateScreens()) );
}
void MainUI::ActivateScreen(){
//Assemble the command;
QString ID = ui->combo_availscreens->currentText();
QString DID = ui->combo_cscreens->currentText();
QString loc = ui->combo_location->currentData().toString();
if(ID.isEmpty() || DID.isEmpty() || loc.isEmpty()){ return; } //invalid inputs
QStringList opts = currentOpts();
opts << "--output" << ID << loc << DID <<"--auto";
//qDebug() << "Activate Options:" << opts;
LUtils::runCmd("xrandr", opts );
QTimer::singleShot(500, this, SLOT(UpdateScreens()) );
}
void MainUI::ApplyChanges(){
//NOTE: need to re-specifiy the
QListWidgetItem *it = ui->list_screens->currentItem();
if(it==0){ return; } //nothing to do
QString newres = ui->combo_resolution->currentData().toString();
if(newres.isEmpty()){ return; } //nothing to do
//qDebug() << "Apply Screen Changes" << it->whatsThis() << "->" << newres;
//Adjust the order of the two screens
for(int i=0; i<SCREENS.length(); i++){
if(SCREENS[i].ID == it->whatsThis()){
SCREENS[i].geom.setWidth(newres.section("x",0,0).toInt());
SCREENS[i].geom.setHeight(newres.section("x",1,1).toInt());
}
}
//Now run the command
QStringList opts = currentOpts();
LUtils::runCmd("xrandr", opts);
QTimer::singleShot(500, this, SLOT(UpdateScreens()) );
}
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