workspace/plasma/applets/tasks/tasksmenu.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2008 Marco Martin <notmart@gmail.com>                   *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   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 General Public License     *
  15  *   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
  21 #include "tasksmenu.h"
  22
  23 //Qt
  24 #include <QPainter>
  25 #include <QPaintEvent>
  26 #include <QStyle>
  27 #include <QApplication>
  28 #include <QBitmap>
  29 #include <QTimer>
  30
  31 //KDE
  32 #include <KIconLoader>
  33
  34 //Plasma
  35 #include <Plasma/Applet>
  36 #include <Plasma/FrameSvg>
  37 #include <Plasma/Theme>
  38
  39 #include "tasks.h"
  40
  41 namespace TaskManager
  42 {
  43
  44
  45 TasksMenu::TasksMenu(QWidget *parent, TaskGroup *group, GroupManager *groupManager, Tasks *applet)
  46     :  GroupPopupMenu(parent, group, groupManager),
  47        m_activateTimer(0),
  48        m_lasttriggeredAction(0),
  49        m_applet(applet)
  50 {
  51     setAttribute(Qt::WA_NoSystemBackground);
  52
  53     m_background = new Plasma::FrameSvg(this);
  54     m_background->setImagePath("dialogs/background");
  55
  56     //since the thing gets destroyed on close we can set this just one time for now
  57     const int topHeight = m_background->marginSize(Plasma::TopMargin);
  58     const int leftWidth = m_background->marginSize(Plasma::LeftMargin);
  59     const int rightWidth = m_background->marginSize(Plasma::RightMargin);
  60     const int bottomHeight = m_background->marginSize(Plasma::BottomMargin);
  61
  62     setAcceptDrops(true);
  63
  64     switch (m_applet->location()) {
  65     case Plasma::BottomEdge:
  66         m_background->setEnabledBorders(Plasma::FrameSvg::LeftBorder | Plasma::FrameSvg::TopBorder
  67                                                                      | Plasma::FrameSvg::RightBorder);
  68         setContentsMargins(leftWidth, topHeight, rightWidth, 0);
  69         break;
  70     case Plasma::TopEdge:
  71         m_background->setEnabledBorders(Plasma::FrameSvg::LeftBorder | Plasma::FrameSvg::BottomBorder
  72                                                                      | Plasma::FrameSvg::RightBorder);
  73
  74         setContentsMargins(leftWidth, 0, rightWidth, bottomHeight);
  75         break;
  76     case Plasma::LeftEdge:
  77         m_background->setEnabledBorders(Plasma::FrameSvg::TopBorder | Plasma::FrameSvg::BottomBorder
  78                                                                     | Plasma::FrameSvg::RightBorder);
  79
  80         setContentsMargins(0, topHeight, rightWidth, bottomHeight);
  81         break;
  82     case Plasma::RightEdge:
  83         m_background->setEnabledBorders(Plasma::FrameSvg::TopBorder | Plasma::FrameSvg::BottomBorder
  84                                                                     | Plasma::FrameSvg::LeftBorder);
  85
  86         setContentsMargins(leftWidth, topHeight, 0, bottomHeight);
  87         break;
  88     default:
  89         m_background->setEnabledBorders(Plasma::FrameSvg::AllBorders);
  90         setContentsMargins(leftWidth, topHeight, rightWidth, bottomHeight);
  91     }
  92 }
  93
  94 TasksMenu::~TasksMenu()
  95 {}
  96
  97 void TasksMenu::paintEvent(QPaintEvent *event)
  98 {
  99     //Q_UNUSED(event)
 100
 101     QPainter painter(this);
 102     painter.setCompositionMode(QPainter::CompositionMode_Source);
 103     painter.fillRect(event->rect(), Qt::transparent);
 104     m_background->paintFrame(&painter);
 105
 106     painter.setCompositionMode(QPainter::CompositionMode_SourceOver);
 107
 108     qreal left = 0, right = 0, top = 0, bottom = 0;
 109     bool first = true;
 110     Plasma::FrameSvg *itemBackground = m_applet->itemBackground();
 111     itemBackground->setElementPrefix("normal");
 112
 113     foreach (QAction *a, actions()) {
 114         QRect actionRect(actionGeometry(a));
 115
 116         if (first) {
 117             itemBackground->resizeFrame(actionRect.size());
 118             itemBackground->getMargins(left, top, right, bottom);
 119             first = false;
 120         }
 121
 122         QRect deframedRect = actionRect.adjusted(left, 0, -right, 0);
 123         QRect iconRect(QStyle::alignedRect(QApplication::layoutDirection(), Qt::AlignLeft | Qt::AlignVCenter,
 124                               QSize(KIconLoader::SizeSmall, KIconLoader::SizeSmall),
 125                               deframedRect));
 126         QRect textRect(QStyle::alignedRect(QApplication::layoutDirection(), Qt::AlignRight | Qt::AlignVCenter,
 127                               QSize(deframedRect.width() - iconRect.width() - 3, deframedRect.height()),
 128                               deframedRect));
 129
 130         if (activeAction() == a && m_applet->itemBackground()) {
 131             itemBackground->paintFrame(&painter, actionRect.topLeft());
 132         }
 133
 134         painter.drawPixmap(iconRect, a->icon().pixmap(iconRect.size()));
 135         painter.setPen(Plasma::Theme::defaultTheme()->color(Plasma::Theme::TextColor));
 136         painter.drawText(textRect, Qt::AlignLeft|Qt::AlignVCenter, a->text());
 137     }
 138
 139 }
 140
 141 void TasksMenu::resizeEvent(QResizeEvent *event)
 142 {
 143     m_background->resizeFrame(event->size());
 144     setMask(m_background->mask());
 145 }
 146
 147
 148 void TasksMenu::dragEnterEvent(QDragEnterEvent *event)
 149 {
 150     //kDebug()<<"Drag enter";
 151     event->accept();
 152 }
 153
 154 void TasksMenu::dragMoveEvent(QDragMoveEvent *event)
 155 {
 156     if (!m_activateTimer) {
 157         m_activateTimer = new QTimer(this);
 158         m_activateTimer->setSingleShot(true);
 159         m_activateTimer->setInterval(300);
 160         connect(m_activateTimer, SIGNAL(timeout()), this, SLOT(activate()));
 161     }
 162
 163     m_lastMousePos = event->pos();
 164     m_activateTimer->start(300);
 165 }
 166
 167 void TasksMenu::dragLeaveEvent(QDragLeaveEvent *event)
 168 {
 169     Q_UNUSED(event)
 170     m_activateTimer->stop();
 171     m_activateTimer = 0;
 172
 173     close();
 174 }
 175
 176 void TasksMenu::dropEvent(QDropEvent *event)
 177 {
 178     Q_UNUSED(event)
 179     m_activateTimer->stop();
 180     m_activateTimer = 0;
 181
 182     close();
 183 }
 184
 185 void TasksMenu::activate()
 186 {
 187     QAction *action = actionAt(m_lastMousePos);
 188
 189     if (action && action != m_lasttriggeredAction) {
 190         m_lasttriggeredAction = action;
 191         action->trigger();
 192     }
 193 }
 194
 195 }
 196
 197 #include "tasksmenu.moc"
 198
 199