src/systemtray.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2003 by S�astien Laot                                 *
   3  *   slaout@linux62.org                                                    *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20
  21 /** KSystemTray2 */
  22
  23 // To draw the systray screenshot image:
  24 #include <q3dockwindow.h>
  25 #include <qmovie.h>
  26 #include <qvariant.h>
  27 //Added by qt3to4:
  28 #include <QDragMoveEvent>
  29 #include <Q3CString>
  30 #include <QDropEvent>
  31 #include <QDragLeaveEvent>
  32 #include <QWheelEvent>
  33 #include <QMouseEvent>
  34 #include <QEvent>
  35 #include <QDragEnterEvent>
  36 #include "linklabel.h"
  37 #include "note.h"
  38
  39 #include <qdesktopwidget.h>
  40 #include <qmime.h>
  41 #include <qpainter.h>
  42 #include <qpoint.h>
  43 #include <qpixmap.h>
  44 // To know the program name:
  45 #include <kglobal.h>
  46 #include <kinstance.h>
  47 #include <kaboutdata.h>
  48 #include <kiconeffect.h>
  49 // Others:
  50 #include <kmessagebox.h>
  51 #include <kmanagerselection.h>
  52 #include <kdeversion.h>
  53 #include <kapplication.h>
  54 #include <kpopupmenu.h>
  55 #include <kiconloader.h>
  56 #include <kdebug.h>
  57 #include "systemtray.h"
  58 #include "basket.h"
  59 #include "settings.h"
  60 #include "global.h"
  61 #include "tools.h"
  62
  63 KSystemTray2::KSystemTray2(QWidget *parent, const char *name)
  64  : KSystemTray(parent, name)
  65 {
  66 }
  67
  68 KSystemTray2::~KSystemTray2()
  69 {
  70 }
  71
  72 void KSystemTray2::displayCloseMessage(QString fileMenu)
  73 {
  74         /* IDEAS OF IMPROVEMENTS:
  75         *  - Use queuedMessageBox() but it need a dontAskAgainName parameter
  76         *    and image in QMimeSourceFactory shouldn't be removed.
  77         *  - Sometimes the systray icon is covered (a passive popup...)
  78         *    Use XComposite extension, if available, to get the kicker pixmap.
  79         *  - Perhapse desaturate the area around the proper SysTray icon,
  80         *    helping bring it into sharper focus. Or draw the cicle with XOR
  81         *    brush.
  82         *  - Perhapse add the icon in the text (eg. "... in the
  83         *    system tray ([icon])."). Add some clutter to the dialog.
  84         */
  85 #if KDE_IS_VERSION( 3, 1, 90 )
  86         // Don't do all the computations if they are unneeded:
  87         if ( ! KMessageBox::shouldBeShownContinue("hideOnCloseInfo") )
  88                 return;
  89 #endif
  90         // "Default parameter". Here, to avoid a i18n() call and dependancy in the .h
  91         if (fileMenu.isEmpty())
  92                 fileMenu = i18n("File");
  93
  94         // Some values we need:
  95         QPoint g = mapToGlobal(pos());
  96         int desktopWidth  = kapp->desktop()->width();
  97         int desktopHeight = kapp->desktop()->height();
  98         int tw = width();
  99         int th = height();
 100
 101         // We are triying to make a live screenshot of the systray icon to circle it
 102         //  and show it to the user. If no systray is used or if the icon is not visible,
 103         //  we should not show that screenshot but only a text!
 104
 105         // 1. Determine if the user use a system tray area or not:
 106         Q3CString screenstr;
 107         screenstr.setNum(qt_xscreen());
 108         Q3CString trayatom = "_NET_SYSTEM_TRAY_S" + screenstr;
 109         bool useSystray = (KSelectionWatcher(trayatom).owner() != 0L);
 110
 111         // 2. And then if the icon is visible too (eg. this->show() has been called):
 112         useSystray = useSystray && isVisible();
 113
 114         // 3. Kicker (or another systray manager) can be visible but masked out of
 115         //    the screen (ie. on right or on left of it). We check if the icon isn't
 116         //    out of screen.
 117         if (useSystray) {
 118                 QRect deskRect(0, 0, desktopWidth, desktopHeight);
 119                 if ( !deskRect.contains(g.x(), g.y()) ||
 120                      !deskRect.contains(g.x() + tw, g.y() + th) )
 121                         useSystray = false;
 122         }
 123
 124         // 4. We raise the window containing the systray icon (typically the kicker) to
 125         //    have the most chances it is visible during the capture:
 126 /*      if (useSystray) {
 127                 // We are testing if one of the corners is hidden, and if yes, we would enter
 128                 // a time consuming process (raise kicker and wait some time):
 129 //              if (kapp->widgetAt(g) != this ||
 130 //                  kapp->widgetAt(g + QPoint(tw-1, 0)) != this ||
 131 //                  kapp->widgetAt(g + QPoint(0, th-1)) != this ||
 132 //                  kapp->widgetAt(g + QPoint(tw-1, th-1)) != this) {
 133                         int systrayManagerWinId = topLevelWidget()->winId();
 134                         KWin::forceActiveWindow(systrayManagerWinId);
 135                         kapp->processEvents(); // Because without it the systrayManager is raised only after the messageBox is displayed
 136 //                      KWin::activateWindow(systrayManagerWinId);
 137 //                      kapp->processEvents(); // Because without it the systrayManager is raised only after the messageBox is displayed
 138 //                              KWin::raiseWindow(systrayManagerWinId);
 139 //                      kapp->processEvents(); // Because without it the systrayManager is raised only after the messageBox is displayed
 140                         sleep(1);
 141                         // TODO: Re-verify that at least one corner is now visible
 142 //              }
 143         }*/
 144
 145 //      KMessageBox::information(this, QString::number(g.x()) + ":" + QString::number(g.y()) + ":" +
 146 //                               QString::number((int)(kapp->widgetAt(g+QPoint(1,1)))));
 147
 148         QString message = i18n(
 149                 "<p>Closing the main window will keep %1 running in the system tray. "
 150                 "Use <b>Quit</b> from the <b>Basket</b> menu to quit the application.</p>"
 151                         ).arg(KGlobal::instance()->aboutData()->programName());
 152         // We are sure the systray icon is visible: ouf!
 153         if (useSystray) {
 154                 // Compute size and position of the pixmap to be grabbed:
 155                 int w = desktopWidth / 4;
 156                 int h = desktopHeight / 9;
 157                 int x = g.x() + tw/2 - w/2; // Center the rectange in the systray icon
 158                 int y = g.y() + th/2 - h/2;
 159                 if (x < 0)                 x = 0; // Move the rectangle to stay in the desktop limits
 160                 if (y < 0)                 y = 0;
 161                 if (x + w > desktopWidth)  x = desktopWidth - w;
 162                 if (y + h > desktopHeight) y = desktopHeight - h;
 163
 164                 // Grab the desktop and draw a circle arround the icon:
 165                 QPixmap shot = QPixmap::grabWindow(qt_xrootwin(), x, y, w, h);
 166                 QPainter painter(&shot);
 167                 const int CIRCLE_MARGINS = 6;
 168                 const int CIRCLE_WIDTH   = 3;
 169                 const int SHADOW_OFFSET  = 1;
 170                 const int IMAGE_BORDER   = 1;
 171                 int ax = g.x() - x - CIRCLE_MARGINS - 1;
 172                 int ay = g.y() - y - CIRCLE_MARGINS - 1;
 173                 painter.setPen( QPen(KApplication::palette().active().dark(), CIRCLE_WIDTH) );
 174                 painter.drawArc(ax + SHADOW_OFFSET, ay + SHADOW_OFFSET,
 175                                 tw + 2*CIRCLE_MARGINS, th + 2*CIRCLE_MARGINS, 0, 16*360);
 176                 painter.setPen( QPen(Qt::red/*KApplication::palette().active().highlight()*/, CIRCLE_WIDTH) );
 177                 painter.drawArc(ax, ay, tw + 2*CIRCLE_MARGINS, th + 2*CIRCLE_MARGINS, 0, 16*360);
 178 #if 1
 179                 // Draw the pixmap over the screenshot in case a window hide the icon:
 180                 painter.drawPixmap(g.x() - x, g.y() - y + 1, *pixmap());
 181 #endif
 182                 painter.end();
 183
 184                 // Then, we add a border arround the image to make it more visible:
 185                 QPixmap finalShot(w + 2*IMAGE_BORDER, h + 2*IMAGE_BORDER);
 186                 finalShot.fill(KApplication::palette().active().foreground());
 187                 painter.begin(&finalShot);
 188                 painter.drawPixmap(IMAGE_BORDER, IMAGE_BORDER, shot);
 189                 painter.end();
 190
 191                 // Associate source to image and show the dialog:
 192                 Q3MimeSourceFactory::defaultFactory()->setPixmap("systray_shot", finalShot);
 193                 KMessageBox::information(kapp->activeWindow(),
 194                         message + "<p><center><img source=\"systray_shot\"></center></p>",
 195                         i18n("Docking in System Tray"), "hideOnCloseInfo");
 196                 Q3MimeSourceFactory::defaultFactory()->setData("systray_shot", 0L);
 197         } else {
 198                 KMessageBox::information(kapp->activeWindow(),
 199                         message,
 200                         i18n("Docking in System Tray"), "hideOnCloseInfo");
 201         }
 202 }
 203
 204 /** SystemTray */
 205
 206 SystemTray::SystemTray(QWidget *parent, const char *name)
 207  : KSystemTray2(parent, name != 0 ? name : "SystemTray"), m_showTimer(0), m_autoShowTimer(0)
 208 {
 209         setAcceptDrops(true);
 210
 211         m_showTimer = new QTimer(this);
 212         connect( m_showTimer, SIGNAL(timeout()), Global::bnpView, SLOT(setActive()) );
 213
 214         m_autoShowTimer = new QTimer(this);
 215         connect( m_autoShowTimer, SIGNAL(timeout()), Global::bnpView, SLOT(setActive()) );
 216
 217         // Create pixmaps for the icon:
 218         m_iconPixmap              = loadIcon("basket");
 219 //      FIXME: When main window is shown at start, the icon is loaded 1 pixel too high
 220 //             and then reloaded instantly after at the right position.
 221 //      setPixmap(m_iconPixmap); // Load it the sooner as possible to avoid flicker
 222         QImage  lockedIconImage   = m_iconPixmap.convertToImage();
 223         QPixmap lockOverlayPixmap = loadIcon("lockoverlay");
 224         QImage  lockOverlayImage  = lockOverlayPixmap.convertToImage();
 225         KIconEffect::overlay(lockedIconImage, lockOverlayImage);
 226         m_lockedIconPixmap.convertFromImage(lockedIconImage);
 227
 228         updateToolTip(); // Set toolTip AND icon
 229 }
 230
 231 SystemTray::~SystemTray()
 232 {
 233 }
 234
 235 void SystemTray::mousePressEvent(QMouseEvent *event)
 236 {
 237         if (event->button() & Qt::LeftButton) {          // Prepare drag
 238                 m_pressPos = event->globalPos();
 239                 m_canDrag  = true;
 240                 event->accept();
 241         } else if (event->button() & Qt::MidButton) {    // Paste
 242                 Global::bnpView->currentBasket()->setInsertPopupMenu();
 243                 Global::bnpView->currentBasket()->pasteNote(QClipboard::Selection);
 244                 Global::bnpView->currentBasket()->cancelInsertPopupMenu();
 245                 if (Settings::usePassivePopup())
 246                         Global::bnpView->showPassiveDropped(i18n("Pasted selection to basket <i>%1</i>"));
 247                 event->accept();
 248         } else if (event->button() & Qt::RightButton) { // Popup menu
 249                 KPopupMenu menu(this);
 250                 menu.insertTitle( SmallIcon("basket"), kapp->aboutData()->programName() );
 251
 252                 Global::bnpView->actNewBasket->plug(&menu);
 253                 Global::bnpView->actNewSubBasket->plug(&menu);
 254                 Global::bnpView->actNewSiblingBasket->plug(&menu);
 255                 menu.insertSeparator();
 256                 Global::bnpView->m_actPaste->plug(&menu);
 257                 Global::bnpView->m_actGrabScreenshot->plug(&menu);
 258                 Global::bnpView->m_actColorPicker->plug(&menu);
 259
 260                 if(!Global::bnpView->isPart())
 261                 {
 262                         KAction* action;
 263
 264                         menu.insertSeparator();
 265
 266                         action = Global::bnpView->actionCollection()->action("options_configure_global_keybinding");
 267                         if(action)
 268                                 action->plug(&menu);
 269
 270                         action = Global::bnpView->actionCollection()->action("options_configure");
 271                         if(action)
 272                                 action->plug(&menu);
 273
 274                         menu.insertSeparator();
 275
 276                         // Minimize / restore : since we manage the popup menu by ourself, we should do that work :
 277                         action = Global::bnpView->actionCollection()->action("minimizeRestore");
 278                         if(action)
 279                         {
 280                                 if (Global::mainWindow()->isVisible())
 281                                         action->setText(i18n("&Minimize"));
 282                                 else
 283                                         action->setText(i18n("&Restore"));
 284                                 action->plug(&menu);
 285                         }
 286
 287                         action = Global::bnpView->actionCollection()->action("file_quit");
 288                         if(action)
 289                                 action->plug(&menu);
 290                 }
 291
 292                 Global::bnpView->currentBasket()->setInsertPopupMenu();
 293                 connect( &menu, SIGNAL(aboutToHide()), Global::bnpView->currentBasket(), SLOT(delayedCancelInsertPopupMenu()) );
 294                 menu.exec(event->globalPos());
 295                 event->accept();
 296         } else
 297                 event->ignore();
 298 }
 299
 300 void SystemTray::mouseMoveEvent(QMouseEvent *event)
 301 {
 302         event->ignore();
 303 }
 304
 305 void SystemTray::mouseReleaseEvent(QMouseEvent *event)
 306 {
 307         m_canDrag = false;
 308         if (event->button() == Qt::LeftButton)         // Show / hide main window
 309                 if ( rect().contains(event->pos()) ) {     // Accept only if released in systemTray
 310                         toggleActive();
 311                         emit showPart();
 312                         event->accept();
 313                 } else
 314                         event->ignore();
 315 }
 316
 317 void SystemTray::dragEnterEvent(QDragEnterEvent *event)
 318 {
 319         m_showTimer->start( Settings::dropTimeToShow() * 100, true );
 320         Global::bnpView->currentBasket()->showFrameInsertTo();
 321 ///     m_parentContainer->setStatusBarDrag(); // FIXME: move this line in Basket::showFrameInsertTo() ?
 322         Basket::acceptDropEvent(event);
 323 }
 324
 325 void SystemTray::dragMoveEvent(QDragMoveEvent *event)
 326 {
 327         Basket::acceptDropEvent(event);
 328 }
 329
 330 void SystemTray::dragLeaveEvent(QDragLeaveEvent*)
 331 {
 332         m_showTimer->stop();
 333         m_canDrag = false;
 334         Global::bnpView->currentBasket()->resetInsertTo();
 335         Global::bnpView->updateStatusBarHint();
 336 }
 337
 338 #include <iostream>
 339
 340 void SystemTray::dropEvent(QDropEvent *event)
 341 {
 342         m_showTimer->stop();
 343
 344         Global::bnpView->currentBasket()->blindDrop(event);
 345
 346 /*      Basket *basket = Global::bnpView->currentBasket();
 347         if (!basket->isLoaded()) {
 348                 Global::bnpView->showPassiveLoading(basket);
 349                 basket->load();
 350         }
 351         basket->contentsDropEvent(event);
 352         std::cout << (long) basket->selectedNotes() << std::endl;
 353
 354         if (Settings::usePassivePopup())
 355                 Global::bnpView->showPassiveDropped(i18n("Dropped to basket <i>%1</i>"));*/
 356 }
 357
 358 /* This function comes directly from JuK: */
 359
 360 /*
 361  * This function copies the entirety of src into dest, starting in
 362  * dest at x and y.  This function exists because I was unable to find
 363  * a function like it in either QImage or kdefx
 364  */
 365 static bool copyImage(QImage &dest, QImage &src, int x, int y)
 366 {
 367         if(dest.depth() != src.depth())
 368                 return false;
 369         if((x + src.width()) >= dest.width())
 370                 return false;
 371         if((y + src.height()) >= dest.height())
 372                 return false;
 373
 374         // We want to use KIconEffect::overlay to do this, since it handles
 375         // alpha, but the images need to be the same size.  We can handle that.
 376
 377         QImage large_src(dest);
 378
 379         // It would perhaps be better to create large_src based on a size, but
 380         // this is the easiest way to make a new image with the same depth, size,
 381         // etc.
 382
 383         large_src.detach();
 384
 385         // However, we do have to specifically ensure that setAlphaBuffer is set
 386         // to false
 387
 388         large_src.setAlphaBuffer(false);
 389         large_src.fill(0); // All transparent pixels
 390         large_src.setAlphaBuffer(true);
 391
 392         int w = src.width();
 393         int h = src.height();
 394         for(int dx = 0; dx < w; dx++)
 395                 for(int dy = 0; dy < h; dy++)
 396                         large_src.setPixel(dx + x, dy + y, src.pixel(dx, dy));
 397
 398         // Apply effect to image
 399
 400         KIconEffect::overlay(dest, large_src);
 401
 402         return true;
 403 }
 404
 405 void SystemTray::updateToolTip()
 406 {
 407 //      return; /////////////////////////////////////////////////////
 408
 409         Basket *basket = Global::bnpView->currentBasket();
 410         if (!basket)
 411                 return;
 412
 413         if (basket->icon().isEmpty() || basket->icon() == "basket" || ! Settings::showIconInSystray())
 414                 setPixmap(basket->isLocked() ? m_lockedIconPixmap : m_iconPixmap);
 415         else {
 416                 // Code that comes from JuK:
 417                 QPixmap bgPix = loadIcon("basket");
 418                 QPixmap fgPix = SmallIcon(basket->icon());
 419
 420                 QImage bgImage = bgPix.convertToImage(); // Probably 22x22
 421                 QImage fgImage = fgPix.convertToImage(); // Should be 16x16
 422                 QImage lockOverlayImage = loadIcon("lockoverlay").convertToImage();
 423
 424                 KIconEffect::semiTransparent(bgImage);
 425                 copyImage(bgImage, fgImage, (bgImage.width() - fgImage.width()) / 2,
 426                                 (bgImage.height() - fgImage.height()) / 2);
 427                 if (basket->isLocked())
 428                         KIconEffect::overlay(bgImage, lockOverlayImage);
 429
 430                 bgPix.convertFromImage(bgImage);
 431                 setPixmap(bgPix);
 432         }
 433
 434         //QTimer::singleShot( Container::c_delayTooltipTime, this, SLOT(updateToolTipDelayed()) );
 435         // No need to delay: it's be called when notes are changed:
 436         updateToolTipDelayed();
 437 }
 438
 439 void SystemTray::updateToolTipDelayed()
 440 {
 441         Basket *basket = Global::bnpView->currentBasket();
 442
 443         QString tip = "<p><nobr>" + ( basket->isLocked() ? kapp->makeStdCaption(i18n("%1 (Locked)"))
 444                                                          : kapp->makeStdCaption(     "%1")          )
 445                                     .arg(Tools::textToHTMLWithoutP(basket->basketName()));
 446
 447         QToolTip::add(this, tip);
 448 }
 449
 450 void SystemTray::wheelEvent(QWheelEvent *event)
 451 {
 452         if (event->delta() > 0)
 453                 Global::bnpView->goToPreviousBasket();
 454         else
 455                 Global::bnpView->goToNextBasket();
 456
 457         if (Settings::usePassivePopup())
 458                 Global::bnpView->showPassiveContent();
 459 }
 460
 461 void SystemTray::enterEvent(QEvent*)
 462 {
 463         if (Settings::showOnMouseIn())
 464                 m_autoShowTimer->start(Settings::timeToShowOnMouseIn() * 100, true );
 465 }
 466
 467 void SystemTray::leaveEvent(QEvent*)
 468 {
 469         m_autoShowTimer->stop();
 470 }
 471
 472 #include "systemtray.moc"