Logo Search packages:      
Sourcecode: valknut version File versions  Download package

trayicon_x11.cpp

/*
 * trayicon_x11.cpp - X11 trayicon (for use with KDE and GNOME)
 * Copyright (C) 2003  Justin Karneges
 * GNOME2 Notification Area support: Tomasz Sterna
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#include "trayicon.h"

#include<qapplication.h>
#include<qimage.h>
#include<qpixmap.h>
#include<qbitmap.h>
#include<qcursor.h>
#include<qlabel.h>
#include<qtooltip.h>
#include<qpainter.h>

#include<X11/Xlib.h>
#include<X11/Xutil.h>
#include<X11/Xatom.h>


/* for Gnome2 Notification Area */
static XErrorHandler old_handler = 0;
static int dock_xerror = 0;
static int dock_xerrhandler(Display* dpy, XErrorEvent* err)
{
      dock_xerror = err->error_code;
      return old_handler(dpy, err);
}

static void trap_errors()
{
      dock_xerror = 0;
      old_handler = XSetErrorHandler(dock_xerrhandler);
}

static bool untrap_errors()
{
      XSetErrorHandler(old_handler);
      return (dock_xerror == 0);
}

static bool send_message(
      Display* dpy, /* display */
      Window w,    /* sender (tray icon window) */
      long message, /* message opcode */
      long data1,   /* message data 1 */
      long data2,   /* message data 2 */
      long data3  /* message data 3 */
){
      XEvent ev;

      memset(&ev, 0, sizeof(ev));
      ev.xclient.type = ClientMessage;
      ev.xclient.window = w;
      ev.xclient.message_type = XInternAtom (dpy, "_NET_SYSTEM_TRAY_OPCODE", False );
      ev.xclient.format = 32;
      ev.xclient.data.l[0] = CurrentTime;
      ev.xclient.data.l[1] = message;
      ev.xclient.data.l[2] = data1;
      ev.xclient.data.l[3] = data2;
      ev.xclient.data.l[4] = data3;

      trap_errors();
      XSendEvent(dpy, w, False, NoEventMask, &ev);
      XSync(dpy, False);
      return untrap_errors();
}

#define SYSTEM_TRAY_REQUEST_DOCK    0
#define SYSTEM_TRAY_BEGIN_MESSAGE   1
#define SYSTEM_TRAY_CANCEL_MESSAGE  2


/*static QPixmap buildIcon(const QPixmap &_in)
{
      QImage image(22,22,32);
      image.fill(0);
      image.setAlphaBuffer(TRUE);

      QImage in = _in.convertToImage();
      //QImage in(22,22,32);

      // make sure it is no bigger than 22x22
      if(in.width() > 22 || in.height() > 22)
            in = in.smoothScale(22,22);

      // draw the pixmap onto the 22x22 image
      int xo = (image.width() - in.width()) / 2;
      int yo = (image.height() - in.height()) / 2;
      for(int n2 = 0; n2 < in.height(); ++n2) {
            for(int n = 0; n < in.width(); ++n) {
                  if(qAlpha(in.pixel(n,n2))) {
                        image.setPixel(n+xo, n2+yo, in.pixel(n,n2));
                  }
            }
      }

      // convert to pixmap and return
      QPixmap icon;
      icon.convertFromImage(image);
      return icon;
}*/

//class TrayIcon::TrayIconPrivate : public QLabel
class TrayIcon::TrayIconPrivate : public QWidget
{
public:
      TrayIconPrivate( TrayIcon *object, const QPixmap &pm, bool _isWMDock )
      : QWidget(NULL, "dcguiqtdock",  WType_TopLevel | WStyle_Customize | WStyle_NoBorder | WStyle_StaysOnTop | WMouseNoMask), iconObject(object)
//    : QLabel( 0, "psidock", WMouseNoMask ), iconObject(object)
      {
            setFocusPolicy(NoFocus);

            isWMDock = _isWMDock;
            inNetTray = false;
            bInit = false;
            inTray = false;

            setMinimumSize(22, 22);
            setPixmap(pm);

            Display *dsp = x11Display(); // get the display
            WId win = winId();             // get the window

            XClassHint classhint;
            classhint.res_name  = (char*)"dcguiqtdock";
            classhint.res_class = (char*)"Wharf";
            XSetClassHint(dsp, win, &classhint);
            XWMHints *hints;  // hints
            hints = XGetWMHints(dsp, win);  // init hints
            hints->initial_state = WithdrawnState;
            hints->icon_x = 0;
            hints->icon_y = 0;
            hints->icon_window = winId();
            hints->window_group = win;  // set the window hint
            hints->flags = WindowGroupHint | IconWindowHint | IconPositionHint | StateHint; // set the window group hint
            XSetWMHints(dsp, win, hints);  // set the window hints for WM to use.
            XFree( hints );
            setBackgroundMode(X11ParentRelative); // hopefully fix the mask problem

            // WindowMaker
            if(isWMDock) {
                  //QPixmap pix = pm;
                  //setPixmap(pix);
                  resize(64,64);
                  update();

                  /*Display *dsp = x11Display();  // get the display
                  WId win = winId();     // get the window
                  //XClassHint classhint;  // class hints
                  //classhint.res_name = "psidock";  // res_name
                  //classhint.res_class = "Wharf";  // res_class
                  //XSetClassHint(dsp, win, &classhint); // set the class hints
                  XWMHints *hints;  // hints
                  hints = XGetWMHints(dsp, win);  // init hints
                  hints->initial_state = WithdrawnState;
                  hints->icon_x = 0;
                  hints->icon_y = 0;
                  hints->icon_window = winId(); //wharfIcon->winId();
                  hints->window_group = win;  // set the window hint
                  hints->flags = WindowGroupHint | IconWindowHint | IconPositionHint | StateHint; // set the window group hint
                  XSetWMHints(dsp, win, hints);  // set the window hints for WM to use.
                  XFree( hints );*/
            }
            // KDE/GNOME
            else {
                  setWFlags(WRepaintNoErase);

                  //QPixmap pix = pm; //buildIcon(pm);
                  //setPixmap(pix);
                  resize(22,22);
                  update();

                  //setMask(*pix.mask());

                  /*// dock the widget (adapted from Gabber / gdk)
                  Display *dsp = x11Display(); // get the display
                  WId win = winId();           // get the window
                  int r;
                  int data = 1;
                  r = XInternAtom(dsp, "KWM_DOCKWINDOW", false);
                  XChangeProperty(dsp, win, r, r, 32, 0, (uchar *)&data, 1);
                  r = XInternAtom(dsp, "_KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR", false);
                  XChangeProperty(dsp, win, r, XA_WINDOW, 32, 0, (uchar *)&data, 1);*/

                  inNetTray = false;

                  // dock the widget (adapted from SIM-ICQ)
                  Screen *screen = XDefaultScreenOfDisplay (dsp); // get the screen
                  int screen_id = XScreenNumberOfScreen(screen); // and it's number
                  char buf[32];
                  snprintf(buf, sizeof(buf), "_NET_SYSTEM_TRAY_S%d", screen_id);
                  Atom selection_atom = XInternAtom(dsp, buf, false);
                  XGrabServer(dsp);
                  Window manager_window = XGetSelectionOwner(dsp, selection_atom);
                  if (manager_window != None)
                        XSelectInput(dsp, manager_window, StructureNotifyMask);
                  XUngrabServer(dsp);
                  XFlush(dsp);
                  if (manager_window != None){
                        inNetTray = true;
                        if (!send_message(dsp, manager_window, SYSTEM_TRAY_REQUEST_DOCK, win, 0, 0)){
                              inNetTray = false;
                        }
                  }

                  Atom kwm_dockwindow_atom = XInternAtom(dsp, "KWM_DOCKWINDOW", false);
                  Atom kde_net_system_tray_window_for_atom = XInternAtom(dsp, "_KDE_NET_WM_SYSTEM_TRAY_WINDOW_FOR", false);

                  long data[1];
                  data[0] = 0;
                  XChangeProperty(dsp, win, kwm_dockwindow_atom, kwm_dockwindow_atom,
                              32, PropModeReplace,
                              (unsigned char*)data, 1);
                  XChangeProperty(dsp, win, kde_net_system_tray_window_for_atom, XA_WINDOW,
                              32, PropModeReplace,
                              (unsigned char*)data, 1);

                  resize(22, 22);
                  if (!inNetTray) {
                        move(-21, -21);
                  }
                  show();
            }
      }

      ~TrayIconPrivate()
      {
      }

      void enterEvent( QEvent * )
      {
            // Taken straight from KSystemTray..
            // Thankyou KDE!
            if ( !qApp->focusWidget() ) {
                  XEvent ev;
                  memset(&ev, 0, sizeof(ev));
                  ev.xfocus.display = qt_xdisplay();
                  ev.xfocus.type = FocusIn;
                  ev.xfocus.window = winId();
                  ev.xfocus.mode = NotifyNormal;
                  ev.xfocus.detail = NotifyAncestor;
//                Time time = qt_x_time;
//                qt_x_time = 1;
                  qApp->x11ProcessEvent( &ev );
//                qt_x_time = time;
            }
      }

      void mouseMoveEvent( QMouseEvent *e )
      {
            QApplication::sendEvent(iconObject, e);
      }

      void mousePressEvent( QMouseEvent *e )
      {
            QApplication::sendEvent(iconObject, e);
      }

      void mouseReleaseEvent( QMouseEvent *e )
      {
            QApplication::sendEvent(iconObject, e);
      }

      void mouseDoubleClickEvent( QMouseEvent *e )
      {
            QApplication::sendEvent(iconObject, e);
      }

      void closeEvent(QCloseEvent *e)
      {
            iconObject->gotCloseEvent();
            e->accept();
      }

      void paintEvent( QPaintEvent* )
      {
            QPainter p(this);
            p.drawPixmap((width() - pix.width())/2, (height() - pix.height())/2, pix);
      }

      inline void setPixmap ( const QPixmap & pm )
      {
            pix = pm;
      }

      bool x11Event(XEvent *e);

      QPixmap pix;
      TrayIcon *iconObject;
      bool isWMDock;
      bool inNetTray;
      bool inTray;
      bool bInit;
};

bool TrayIcon::TrayIconPrivate::x11Event(XEvent *e)
{
      if (e->type == ClientMessage){
            if (!inTray){
                  Atom xembed_atom = XInternAtom( qt_xdisplay(), "_XEMBED", FALSE );
                  if (e->xclient.message_type == xembed_atom){
                        inTray = true;
                        bInit = true;
                  }
            }
      }
      if ((e->type == ReparentNotify) && !bInit && inNetTray){
            Display *dsp = qt_xdisplay();
            if (e->xreparent.parent == XRootWindow(dsp,
                                    XScreenNumberOfScreen(XDefaultScreenOfDisplay(dsp)))
               ){
                  inNetTray = false;
            }else{
                  inTray = true;
                  bInit = true;
                  move(0, 0);
                  resize(22, 22);
                  XResizeWindow(dsp, winId(), 22, 22);
            }
      }
      if (((e->type == FocusIn) || (e->type == Expose)) && !bInit){
            if (!inTray){
                  bInit = true;
                  setFocusPolicy(NoFocus);
            }
      }
      return QWidget::x11Event(e);
}

void TrayIcon::sysInstall()
{
      if ( d )
            return;

      d = new TrayIconPrivate( this, pm, v_isWMDock);
      sysUpdateToolTip();
      d->show();
}

void TrayIcon::sysRemove()
{
      if ( !d )
            return;

      delete d;
      d = 0;
}

void TrayIcon::sysUpdateIcon()
{
      if ( !d )
            return;

      QPixmap pix = pm; //buildIcon(pm);
      d->setPixmap(pix);
      //d->setMask(*pix.mask());
      d->repaint();
}

void TrayIcon::sysUpdateToolTip()
{
      if ( !d )
            return;

      if(tip.isEmpty())
            QToolTip::remove(d);
      else
            QToolTip::add(d, tip);
}

Generated by  Doxygen 1.6.0   Back to index