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//===========================================
// Lumina-DE source code
// Copyright (c) 2016, Ken Moore
// Available under the 3-clause BSD license
// See the LICENSE file for full details
//===========================================
#include "ScreenSettings.h"
#include <LUtils.h>
#include <QDebug>
#include <QSettings>
//Reset current screen config to match previously-saved settings
void RRSettings::ApplyPrevious(){
QSettings set("lumina-desktop","lumina-xconfig");
set.beginGroup("MonitorSettings");
//Setup a couple lists
QStringList devs = set.childGroups(); //known/saved devices
QList<ScreenInfo> screens = RRSettings::CurrentScreens();
QStringList lastactive = set.value("lastActive",QStringList()).toStringList();
//Now go through all the saved settings and put that info into the array
QString primary;
QStringList avail;
for(int i=0; i<screens.length(); i++){
//if(screens[i].order>=0){screens[i].order = -1; } //reset all screen orders (need to re-check all)
if(devs.contains(screens[i].ID) && screens[i].isavailable){ //only load settings for monitors which are currently attached
set.beginGroup(screens[i].ID);
screens[i].geom = set.value("geometry", QRect()).toRect();
screens[i].isprimary = set.value("isprimary", false).toBool();
if(screens[i].isprimary){ primary = screens[i].ID; }
screens[i].isactive = lastactive.contains(screens[i].ID);
screens[i].order = (screens[i].isactive ? -1 : -3); //check/ignore
set.endGroup();
}else if(screens[i].isavailable){
screens[i].order = -2; //needs activation/placement
}else{
screens[i].order = -3; //ignored
}
//Now clean up the list as needed
if(screens[i].order < -2){ screens.removeAt(i); i--; } //just remove it (less to loop through later)
else{ avail << screens[i].ID; } //needed for some checks later - make it simple
}
//NOTE ABOUT orders: -1: check geom, -2: auto-add to end, -3: ignored
//Quick checks for simple systems - just use current X config as-is
if(devs.isEmpty() && (avail.filter("LVDS").isEmpty() || screens.length()==1) ){ return; }
//Typical ID's: LVDS-[], DVI-I-[], DP-[], HDMI-[], VGA-[]
//"LVDS" is the built-in laptop display normally
if(primary.isEmpty()){
QStringList priority; priority << "LVDS" << "DP" << "HDMI" << "DVI" << "VGA";
for(int i=0; i<priority.length() && primary.isEmpty(); i++){
QStringList filter = avail.filter(priority[i]);
if(!filter.isEmpty()){ filter.sort(); primary = filter.first(); }
}
if(primary.isEmpty()){ primary = avail.first(); }
}
//Ensure only one monitor is primary, and reset a few flags
for(int i=0; i<screens.length(); i++){
if(screens[i].ID!=primary){ screens[i].isprimary = false; }
screens[i].isactive = true; //we want all these monitors to be active eventually
}
// Handle all the available monitors
int handled = 0;
int cx = 0; //current x point
while(handled<screens.length()){
//Go through horizontally and place monitors (TO-DO: Vertical placement not handled yet)
int next = -1;
int diff = -1;
for(int i=0; i<screens.length(); i++){
if(screens[i].order==-1){
if(diff<0 || ((screens[i].geom.x()-cx) < diff)){
diff = screens[i].geom.x()-cx;
next = i;
}
}
}//end loop over screens
if(next<0){
//Go through and start adding the non-assigned screens to the end
for(int i=0; i<screens.length(); i++){
if(screens[i].order==-2){
if(diff<0 || ((screens[i].geom.x()-cx) < diff)){
diff = screens[i].geom.x()-cx;
next = i;
}
}
} //end loop over screens
}
if(next>=0){
cx+=screens[next].geom.width();
screens[next].order = handled; handled++;
}else{
//Still missing monitors (vertical alignment?)
qDebug() << "Unhandled Monitors:" << screens.length()-handled;
break;
}
}
//Now reset the display with xrandr
RRSettings::Apply(screens);
}
//Read the current screen config from xrandr
QList<ScreenInfo> RRSettings::CurrentScreens(){
QList<ScreenInfo> SCREENS;
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() ){
//Device disconnected, but still active on X
cscreen.isavailable = false;
cscreen.isactive = true;
}else if( !devres.isEmpty() ){
cscreen.isprimary = info[i].contains(" primary ");
//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() );
cscreen.isavailable = true;
cscreen.isactive = true;
}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
cscreen.isavailable = true;
cscreen.isactive = false;
}
}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);
}
} //end loop over primary info lines
if(!cscreen.ID.isEmpty()){ SCREENS << cscreen; } //make sure to add the last screen to the array
return SCREENS;
}
//Save the screen config for later
bool RRSettings::SaveScreens(QList<ScreenInfo> screens){
QSettings set("lumina-desktop","lumina-xconfig");
set.beginGroup("MonitorSettings");
//Setup a couple lists
QStringList olddevs = set.childGroups();
QStringList active;
//Now go through all the current screens and save that info
for(int i=0; i<screens.length(); i++){
olddevs.removeAll(screens[i].ID); //this is still a valid device
if(screens[i].isactive){ active << screens[i].ID; }
set.beginGroup(screens[i].ID);
set.setValue("geometry", screens[i].geom);
set.setValue("isprimary", screens[i].isprimary);
set.endGroup();
}
set.setValue("lastActive",active);
//Clean up any old device settings (no longer available for this hardware)
for(int i=0; i<olddevs.length(); i++){
set.remove(olddevs[i]);
}
return true;
}
//Apply screen configuration
void RRSettings::Apply(QList<ScreenInfo> screens){
//Read all the settings and create the xrandr options to maintain these settings
QStringList opts;
qDebug() << "Apply:" << screens.length();
for(int i=0; i<screens.length(); i++){
qDebug() << " -- Screen:" << i << screens[i].ID << screens[i].isactive << screens[i].order;
if(screens[i].order <0 || !screens[i].isactive){ 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());
opts << "--pos" << QString::number(screens[i].geom.x())+"x"+QString::number(screens[i].geom.y());
if(screens[i].isprimary){ opts << "--primary"; }
}
qDebug() << "Run command: xrandr" << opts;
LUtils::runCmd("xrandr", opts);
}
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