workspace/plasma/plasma/rootwidget.cpp

   1 /*
   2  *   Copyright 2006-2007 Aaron Seigo <aseigo@kde.org>
   3  *   Copyright 2007 Matt Broadstone <mbroadst@gmail.com>
   4  *
   5  *   This program is free software; you can redistribute it and/or modify
   6  *   it under the terms of the GNU Library General Public License version 2 as
   7  *   published by the Free Software Foundation
   8  *
   9  *   This program is distributed in the hope that it will be useful,
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *   GNU General Public License for more details
  13  *
  14  *   You should have received a copy of the GNU Library General Public
  15  *   License along with this program; if not, write to the
  16  *   Free Software Foundation, Inc.,
  17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18  */
  19
  20 #include "rootwidget.h"
  21
  22 #include <QApplication>
  23 #include <QDesktopWidget>
  24 #include <QVBoxLayout>
  25
  26 #include <KWindowSystem>
  27 #include <KAction>
  28 #include <KShortcut>
  29
  30 #include "plasma/corona.h"
  31 #include "plasma/plasma.h"
  32 #include "plasma/svg.h"
  33 #include "plasma/theme.h"
  34
  35 #include "desktopview.h"
  36 #include "dashboardview.h"
  37 #include "plasmaapp.h"
  38
  39
  40 RootWidget::RootWidget()
  41     : QWidget(0)
  42 {
  43     setFocusPolicy(Qt::NoFocus);
  44
  45     // create a containment for each screen
  46     QDesktopWidget *desktop = QApplication::desktop();
  47     int numScreens = desktop->numScreens();
  48     for (int i = 0; i < numScreens; ++i) {
  49         createDesktopView(i);
  50     }
  51
  52     Plasma::Corona* corona = PlasmaApp::self()->corona();
  53     connect(corona, SIGNAL(newScreen(int)), this, SLOT(createDesktopView(int)));
  54
  55     //TODO: Make the shortcut configurable
  56     KAction *showAction = new KAction( this );
  57     showAction->setText( i18n( "Show Dashboard" ) );
  58     showAction->setGlobalShortcut( KShortcut( Qt::CTRL + Qt::Key_F12 ) );
  59     connect( showAction, SIGNAL( triggered() ), this, SLOT( toggleDashboard() ) );
  60 }
  61
  62 void RootWidget::toggleDashboard()
  63 {
  64     int currentScreen = 0;
  65     if (QApplication::desktop()->numScreens() > 1) {
  66         currentScreen = QApplication::desktop()->screenNumber(QCursor::pos());
  67     }
  68
  69     if (currentScreen > m_desktops.count() - 1) {
  70         kWarning() << "we don't have a DesktopView for the current screen!";
  71         return;
  72     }
  73
  74     m_desktops[currentScreen]->toggleDashboard();
  75 }
  76
  77 void RootWidget::setAsDesktop(bool setAsDesktop)
  78 {
  79     if (setAsDesktop) {
  80         setWindowFlags(windowFlags() | Qt::FramelessWindowHint);
  81
  82         KWindowSystem::setOnAllDesktops(winId(), true);
  83         KWindowSystem::setType(winId(), NET::Desktop);
  84         lower();
  85
  86         QRect desktopGeometry = QApplication::desktop()->geometry();
  87
  88         if (geometry() != desktopGeometry) {
  89             setGeometry(desktopGeometry);
  90         }
  91
  92         connect(QApplication::desktop(), SIGNAL(resized(int)), SLOT(adjustSize(int)));
  93     } else {
  94         setWindowFlags(windowFlags() & ~Qt::FramelessWindowHint);
  95
  96         KWindowSystem::setOnAllDesktops(winId(), false);
  97         KWindowSystem::setType(winId(), NET::Normal);
  98
  99         disconnect(QApplication::desktop(), SIGNAL(resized(int)), this, SLOT(adjustSize()));
 100     }
 101 }
 102
 103 bool RootWidget::isDesktop() const
 104 {
 105     return KWindowInfo(winId(), NET::WMWindowType).windowType(NET::Desktop);
 106 }
 107
 108 RootWidget::~RootWidget()
 109 {
 110 }
 111
 112 void RootWidget::adjustSize(int screen)
 113 {
 114     QDesktopWidget *desktop = QApplication::desktop();
 115     setGeometry(desktop->geometry());
 116
 117     foreach (DesktopView *view, m_desktops) {
 118         if (view->screen() == screen) {
 119             view->adjustSize();
 120         }
 121     }
 122 }
 123
 124 void RootWidget::createDesktopView(int screen)
 125 {
 126     // we have a new screen. neat.
 127     DesktopView *view = new DesktopView(screen, this);
 128     view->setGeometry(QApplication::desktop()->screenGeometry(screen));
 129     m_desktops.append(view);
 130 }
 131
 132 #include "rootwidget.moc"
 133