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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 "RootWindow.h"
#include <QDesktopWidget>
#include <QScreen>
#include <QDebug>
// === PUBLIC ===
RootWindow::RootWindow() : QWidget(0, Qt::Window | Qt::BypassWindowManagerHint | Qt::WindowStaysOnBottomHint){
qRegisterMetaType<WId>("WId");
autoResizeTimer = 0;
}
RootWindow::~RootWindow(){
}
void RootWindow::start(){
if(autoResizeTimer==0){
autoResizeTimer = new QTimer(this);
autoResizeTimer->setInterval(100); //1/10 second (collect all nearly-simultaneous signals and compress into a single update)
autoResizeTimer->setSingleShot(true);
connect(autoResizeTimer, SIGNAL(timeout()), this, SLOT(ResizeRoot()) );
connect(QApplication::desktop(), SIGNAL(resized(int)), autoResizeTimer, SLOT(start()) );
connect(QApplication::desktop(), SIGNAL(screenCountChanged(int)), autoResizeTimer, SLOT(start()) );
}
this->show();
ResizeRoot();
emit RegisterVirtualRoot(this->winId());
}
// === PRIVATE ===
void RootWindow::updateScreenPixmap(screeninfo *info){
QPixmap pix(info->area.size());
if(info->scale == RootWindow::SolidColor){
QColor color;
if(info->file.startsWith("rgb(")){
QStringList colors = info->file.section(")",0,0).section("(",1,1).split(",");
color = QColor(colors[0].toInt(), colors[1].toInt(), colors[2].toInt());
}else{
color = QColor(info->file);
}
pix.fill(color);
}else{
QPixmap raw(info->file); //load the image from file
//Now apply the proper aspect ratio as needed
if(info->scale == RootWindow::Stretch || info->scale == RootWindow::Full || info->scale == RootWindow::Fit){
Qt::AspectRatioMode armode = Qt::KeepAspectRatio;
if(info->scale == RootWindow::Stretch ){ armode = Qt::IgnoreAspectRatio; }
else if(info->scale == RootWindow::Full ){ armode = Qt::KeepAspectRatioByExpanding; }
if(raw.height()!=info->area.height() && raw.width() !=info->area.width()){
raw = raw.scaled(info->area.size(), armode);
}
}
//Now calculate offset and draw width/height
QRect drawRect(0,0, raw.width(), raw.height());
if(info->scale == RootWindow::Full ){
drawRect.moveTo( (info->area.width() - raw.width())/2, (info->area.height() - raw.height())/2 );
}else if(info->scale == RootWindow::Fit ){
drawRect.moveTo( (info->area.width() - raw.width())/2, (info->area.height() - raw.height())/2 );
}else if(info->scale == RootWindow::Center ){
drawRect.moveTo( (info->area.width() - raw.width())/2, (info->area.height() - raw.height())/2 );
}else if(info->scale == RootWindow::Tile ){
//Draw the entire area - no offset
drawRect.setHeight(info->area.height());
drawRect.setWidth(info->area.width());
}else if(info->scale == RootWindow::BottomLeft ){
drawRect.moveTo( 0 , info->area.height() - raw.height() );
}else if(info->scale == RootWindow::BottomRight ){
drawRect.moveTo( (info->area.width() - raw.width()), (info->area.height() - raw.height()) );
}else if(info->scale == RootWindow::BottomCenter ){
drawRect.moveTo( (info->area.width() - raw.width())/2, info->area.height() - raw.height() );
}else if(info->scale == RootWindow::TopLeft ){
drawRect.moveTo( 0, 0 );
}else if(info->scale == RootWindow::TopRight ){
drawRect.moveTo( (info->area.width() - raw.width()), 0);
}else if(info->scale == RootWindow::TopCenter ){
drawRect.moveTo( (info->area.width() - raw.width())/2, 0);
}else if(info->scale == RootWindow::CenterLeft ){
drawRect.moveTo( 0, (info->area.height() - raw.height())/2 );
}else if(info->scale == RootWindow::CenterRight ){
drawRect.moveTo( (info->area.width() - raw.width()), (info->area.height() - raw.height())/2 );
}
QPainter P(&pix);
P.setBrush(raw);
P.setBrushOrigin( drawRect.x(), drawRect.y() );
P.drawRect( drawRect );
} //end SolidColor Check
info->wallpaper = pix;
}
// === PUBLIC SLOTS ===
void RootWindow::ResizeRoot(){
QList<QScreen*> scrns = QApplication::screens();
//Update all the screen locations and ID's in the WALLPAPERS list
QRect fullscreen;
QStringList valid;
//Update the size of the rootWindow itself
for(int i=0; i<scrns.length(); i++){
fullscreen = fullscreen.united(scrns[i]->geometry());
valid << scrns[i]->name();
for(int j=0; j<WALLPAPERS.length(); j++){
if(WALLPAPERS[j].id == scrns[i]->name()){
QSize oldsize = WALLPAPERS[j].area.size();
WALLPAPERS[j].area = scrns[i]->geometry();
if(oldsize != WALLPAPERS[j].area.size()){ updateScreenPixmap(&WALLPAPERS[j]); }
break;
}
}
}
//Now clean up any invalid screen info in the WALLPAPERS List
QStringList invalid;
for(int i=0; i<WALLPAPERS.length(); i++){
if(valid.contains(WALLPAPERS[i].id)){
valid.removeAll(WALLPAPERS[i].id); //Already handled - remove it from the list
}else{
invalid << WALLPAPERS[i].id;
WALLPAPERS.takeAt(i);
i--;
}
}
//Trigger a repaint and send out any signals
this->setGeometry(fullscreen);
this->update();
emit RootResized();
if(!valid.isEmpty()){ emit NewScreens(valid); }
if(!invalid.isEmpty()){ emit RemovedScreens(invalid); }
}
void RootWindow::ChangeWallpaper(QString id, RootWindow::ScaleType scale, QString file){
bool found = false;
for(int i=0; i<WALLPAPERS.length() && !found; i++){
if(WALLPAPERS[i].id == id){
WALLPAPERS[i].scale = scale;
WALLPAPERS[i].file = file;
updateScreenPixmap(&WALLPAPERS[i]);
//qDebug() << " --- Updated Wallpaper:" << WALLPAPERS[i].id << WALLPAPERS[i].file << WALLPAPERS[i].area;
found = true;
}
}
if(!found){
//Need to create a new screeninfo structure
QList<QScreen*> scrns = QApplication::screens();
for(int i=0; i<scrns.length(); i++){
if(scrns[i]->name()==id){
screeninfo info;
info.id = id;
info.file = file;
info.scale = scale;
info.area = scrns[i]->geometry();
updateScreenPixmap(&info);
//qDebug() << " --- Loaded Wallpaper:" << info.id << info.file << info.area;
WALLPAPERS << info;
break;
}
}
} //end check for a new id
}
// === PRIVATE SLOTS ===
// === PROTECTED ===
void RootWindow::paintEvent(QPaintEvent *ev){
//qDebug() << "RootWindow: PaintEvent:" << ev->rect(); //<< QDateTime::currentDateTime()->toString(QDateTime::ShortDate);
bool found = false;
QPainter painter(this);
for(int i=0; i<WALLPAPERS.length(); i++){
if(WALLPAPERS[i].area.intersects(ev->rect()) ){
found = true;
QRect intersect = WALLPAPERS[i].area.intersected(ev->rect());
painter.drawPixmap( intersect, WALLPAPERS[i].wallpaper, intersect.translated(-WALLPAPERS[i].area.x(), -WALLPAPERS[i].area.y()) );
}
}
painter.end();
if(!found){
QWidget::paintEvent(ev);
}
}
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