1 files changed, 142 insertions, 0 deletions
diff --git a/lumina-desktop/panel-plugins/systemtray/TrayIcon.cpp b/lumina-desktop/panel-plugins/systemtray/TrayIcon.cpp
new file mode 100644
index 00000000..37970051
--- /dev/null
+++ b/lumina-desktop/panel-plugins/systemtray/TrayIcon.cpp
@@ -0,0 +1,142 @@
+//===========================================
+//  Lumina-DE source code
+//  Copyright (c) 2014, Ken Moore
+//  Available under the 3-clause BSD license
+//  See the LICENSE file for full details
+//===========================================
+#include "TrayIcon.h"
+
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+#include <X11/extensions/Xdamage.h>
+
+static Damage dmgID = 0;
+
+TrayIcon::TrayIcon(QWidget *parent) : QWidget(parent){
+  AID = 0; //nothing attached yet
+  IID = 0;
+}
+
+TrayIcon::~TrayIcon(){
+  if(AID!=0){
+    detachApp();
+  }
+}
+
+WId TrayIcon::appID(){
+  return AID;
+}
+
+void TrayIcon::attachApp(WId id){
+  if(id==0){ return; } //nothing to attach
+  else if(AID!=0){ qWarning() << "Tray Icon is already attached to a window!"; return; }
+  AID = id;
+  //qDebug() << "Container:" << this->winId();
+  //qDebug() << " - Tray:" << AID;
+  QTimer::singleShot(0,this,SLOT(slotAttach()) );
+}
+
+void TrayIcon::setSizeSquare(int side){
+  this->setFixedSize( QSize(side, side) );
+}
+
+// ==============
+//   PUBLIC SLOTS
+// ==============
+void TrayIcon::detachApp(){
+  if(AID==0){ return; } //already detached
+  qDebug() << "Detach App:" << AID;
+  //Temporarily move the AID, so that internal slots do not auto-run
+  WId tmp = AID;
+  AID = 0;
+  //Now detach the application window and clean up
+  qDebug() << " - Unembed";
+  LX11::UnembedWindow(tmp);
+  if(dmgID!=0){
+    XDamageDestroy(QX11Info::display(), dmgID);
+  }
+  qDebug() << " - finished app:" << tmp;
+  //if(IID!=this->winId()){ LX11::DestroyWindow(IID); }
+  IID = 0;
+  emit AppClosed();
+}
+
+// ==============
+//   PRIVATE SLOTS
+// ==============
+void TrayIcon::slotAttach(){
+  IID = this->winId(); //embed directly into this widget
+  //IID = LX11::CreateWindow( this->winId(), this->rect() ); //Create an intermediate window to be the parent
+  if( LX11::EmbedWindow(AID, IID) ){
+    LX11::RestoreWindow(AID); //make it visible
+    //XSelectInput(QX11Info::display(), AID, StructureNotifyMask);
+    dmgID = XDamageCreate( QX11Info::display(), AID, XDamageReportRawRectangles );
+    updateIcon();
+    qDebug() << "New System Tray App:" << AID;
+    emit AppAttached();
+    QTimer::singleShot(500, this, SLOT(updateIcon()) );
+  }else{
+    qWarning() << "Could not Embed Tray Application:" << AID;
+    //LX11::DestroyWindow(IID);
+    IID = 0;
+    AID = 0;
+    emit AppClosed();
+  }
+}
+
+void TrayIcon::updateIcon(){
+  if(AID==0){ return; }
+  //Make sure the icon is square
+  QSize icosize = this->size();
+  LX11::ResizeWindow(AID,  icosize.width(), icosize.height());
+}
+
+// =============
+//     PROTECTED
+// =============
+void TrayIcon::paintEvent(QPaintEvent *event){
+  QWidget::paintEvent(event); //make sure the background is already painted
+  if(AID!=0){
+    //qDebug() << "Paint Tray:" << AID;
+    QPainter painter(this);
+	//Now paint the tray app on top of the background
+	//qDebug() << " - Draw tray:" << AID << IID << this->winId();
+	//qDebug() << " - - " << event->rect().x() << event->rect().y() << event->rect().width() << event->rect().height();
+	//qDebug() << " - Get image";
+	QPixmap pix = LX11::WindowImage(AID, false);
+	if(pix.isNull()){
+	  //Try to grab the window directly with Qt
+	  //qDebug() << " - Grab window directly";
+	  pix = QPixmap::grabWindow(AID);
+	}
+	//qDebug() << " - Pix size:" << pix.size().width() << pix.size().height();
+	//qDebug() << " - Geom:" << this->geometry().x() << this->geometry().y() << this->geometry().width() << this->geometry().height();
+	painter.drawPixmap(0,0,this->width(), this->height(), pix.scaled(this->size(), Qt::KeepAspectRatio, Qt::SmoothTransformation) );
+    //qDebug() << " - Done";
+  }
+}
+
+/*void TrayIcon::moveEvent(QMoveEvent *event){
+  //Make sure the main Tray window is right underneath the widget
+  //qDebug() << "Move Event:" << event->pos().x() << event->pos().y();
+  LX11::MoveResizeWindow(AID, QRect( this->mapToGlobal(event->pos()), this->size()) );
+  QWidget::moveEvent(event);
+}*/
+
+void TrayIcon::resizeEvent(QResizeEvent *event){
+  //qDebug() << "Resize Event:" << event->size().width() << event->size().height();	
+  if(AID!=0){
+    LX11::ResizeWindow(AID,  event->size().width(), event->size().height());
+  }
+}
+
+/*bool TrayIcon::x11Event(XEvent *event){
+  qDebug() << "XEvent";
+  if( event->xany.window==AID || event->type==( (int)dmgID+XDamageNotify) ){
+    qDebug() << "Tray X Event:" << AID;
+    this->update(); //trigger a repaint
+    return true;
+  }else{
+    return false; //no special handling
+  }
+}*/