kget

droptarget.cpp

00001 /* This file is part of the KDE project
00002 
00003    Copyright (C) 2002 Patrick Charbonnier <pch@freeshell.org>
00004    Based On Caitoo v.0.7.3 (c) 1998 - 2000, Matej Koss
00005 
00006    This program is free software; you can redistribute it and/or
00007    modify it under the terms of the GNU General Public
00008    License as published by the Free Software Foundation; either
00009    version 2 of the License, or (at your option) any later version.
00010 */
00011 
00012 #include "ui/droptarget.h"
00013 
00014 #include "core/kget.h"
00015 #include "settings.h"
00016 #include "mainwindow.h"
00017 #include "ui/newtransferdialog.h"
00018 
00019 #include <kwindowsystem.h>
00020 #include <klocale.h>
00021 #include <kmenu.h>
00022 #include <kmessagebox.h>
00023 #include <KPassivePopup>
00024 #include <kstandarddirs.h>
00025 #include <kactioncollection.h>
00026 #include <kapplication.h>
00027 #include <kiconloader.h>
00028 #include <KGlobalSettings>
00029 
00030 #include <QBitmap>
00031 #include <QPainter>
00032 #include <QTimer>
00033 #include <QClipboard>
00034 
00035 #include <math.h>
00036 
00037 #define TARGET_SIZE   64
00038 #define TARGET_ANI_MS 20
00039 
00040 DropTarget::DropTarget(MainWindow * mw)
00041     : QWidget(0, Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint),
00042     parentWidget(mw), animTimer(0), showInformation(false)
00043 {
00044     KWindowSystem::setState(winId(), NET::SkipTaskbar);
00045 
00046     QRect desk = KGlobalSettings::desktopGeometry(this);
00047     desk.setRight( desk.right() - TARGET_SIZE );
00048     desk.setBottom( desk.bottom() - TARGET_SIZE );
00049 
00050     if (desk.contains(Settings::dropPosition())
00051             && ((Settings::dropPosition().x() != 0) || (Settings::dropPosition().y() != 0)))
00052         position = QPoint(Settings::dropPosition());
00053     else
00054         position = QPoint((int)desk.width() / 2, (int)desk.height() / 2);
00055 
00056     resize(TARGET_SIZE, TARGET_SIZE);
00057 
00058     if(Settings::dropSticky())
00059         KWindowSystem::setState(winId(), KWindowSystem::Sticky);
00060 
00061     cachedPixmap = DesktopIcon("kget", TARGET_SIZE);
00062     if (!cachedPixmap.mask().isNull())
00063     {
00064         QBitmap mask(size());
00065         mask.fill(Qt::color0);
00066         QBitmap pixMask = cachedPixmap.mask();
00067         QPainter p(&mask);
00068         p.drawPixmap((mask.width() - pixMask.width())/2, (mask.height() - pixMask.height())/2,
00069                      pixMask);
00070         setMask(mask);
00071     }
00072     else
00073         setMask(QBitmap());
00074 
00075     update();
00076 
00077     // popup menu for right mouse button
00078     popupMenu = new KMenu();
00079     popupMenu->addTitle(mw->windowTitle());
00080 
00081     QAction * downloadAction = mw->actionCollection()->action("start_all_download");
00082     popupMenu->addAction( downloadAction );
00083     connect( downloadAction, SIGNAL( toggled(bool) ), this, SLOT( slotStartStopToggled(bool) ) );
00084     popupMenu->addSeparator();
00085     pop_show = popupMenu->addAction( QString(), this, SLOT( toggleMinimizeRestore() ) );
00086     popupMenu->addAction(parentWidget->actionCollection()->action("show_drop_target"));
00087     pop_sticky = popupMenu->addAction(i18n("Sticky"), this, SLOT(toggleSticky()));
00088     pop_sticky->setCheckable(true);
00089     pop_sticky->setChecked(Settings::dropSticky());
00090     popupMenu->addSeparator();
00091     popupMenu->addAction( mw->actionCollection()->action("preferences") );
00092 
00093     QAction *quitAction = new QAction(this);
00094     quitAction->setText(i18n("Quit KGet"));
00095     quitAction->setIcon(KIcon("system-log-out"));
00096     connect(quitAction, SIGNAL(triggered()), mw, SLOT(slotQuit()));
00097     popupMenu->addAction(quitAction);
00098 
00099     isdragging = false;
00100 
00101     // Enable dropping
00102     setAcceptDrops(true);
00103 
00104     if ( Settings::showDropTarget() && Settings::firstRun() ) {
00105         showInformation = true;
00106     }
00107 
00108 }
00109 
00110 
00111 DropTarget::~DropTarget()
00112 {
00113     Settings::setDropPosition( pos() );
00114     Settings::setShowDropTarget( !isHidden() );
00115 //    unsigned long state = KWindowSystem::windowInfo(kdrop->winId()).state();
00116 //    // state will be 0L if droptarget is hidden. Sigh.
00117 //    config->writeEntry("State", state ? state : DEFAULT_DOCK_STATE );
00118     delete popupMenu;
00119     delete animTimer;
00120 }
00121 
00122 void DropTarget::setVisible( bool shown, bool internal )
00123 {
00124     if (shown == !isHidden())
00125         return;
00126 
00127     if ( internal )
00128         Settings::setShowDropTarget( shown );
00129 
00130     if (!shown)
00131     {
00132         Settings::setDropPosition( pos() );
00133         if ( Settings::animateDropTarget() )
00134             playAnimationHide();
00135         else
00136             hide();
00137     }
00138     else
00139     {
00140         show();
00141         if ( Settings::animateDropTarget() )
00142             playAnimationShow();
00143         else
00144             move(position);
00145     }
00146 }
00147 
00148 void DropTarget::playAnimationShow()
00149 {
00150     if ( animTimer )
00151         delete animTimer;
00152     animTimer = new QTimer;
00153     connect( animTimer, SIGNAL( timeout() ),
00154         this, SLOT( slotAnimateShow() ));
00155 
00156     move(position.x(), -TARGET_SIZE);
00157 
00158     ani_y = -1;
00159     ani_vy = 0;
00160     animTimer->start(TARGET_ANI_MS);
00161 }
00162 
00163 void DropTarget::playAnimationHide()
00164 {
00165     if ( animTimer )
00166     {
00167         if ( animTimer->isActive() )
00168             move( x(), (int)(ani_y) );
00169         delete animTimer;
00170     }
00171     animTimer = new QTimer;
00172     connect( animTimer, SIGNAL( timeout() ),
00173         this, SLOT( slotAnimateHide() ));
00174     ani_y = (float)y();
00175     ani_vy = 0;
00176     animTimer->start(TARGET_ANI_MS);
00177 }
00178 
00179 void DropTarget::playAnimationSync()
00180 {
00181     if ( animTimer )
00182     {
00183         if ( animTimer->isActive() )
00184             move( x(), (int)(ani_y) );
00185         delete animTimer;
00186     }
00187     animTimer = new QTimer;
00188     connect( animTimer, SIGNAL( timeout() ),
00189         this, SLOT( slotAnimateSync() ));
00190     ani_y = (float)y();
00191     ani_vy = -1;
00192     animTimer->start(TARGET_ANI_MS);
00193 }
00194 
00195 void DropTarget::slotStartStopToggled( bool started )
00196 {
00197     if ( started && Settings::animateDropTarget() )
00198         playAnimationSync();
00199 }
00200 
00201 
00204 void DropTarget::dragEnterEvent(QDragEnterEvent * event)
00205 {
00206     event->setAccepted(KUrl::List::canDecode(event->mimeData())
00207                   || event->mimeData()->hasText());
00208 }
00209 
00210 
00211 void DropTarget::dropEvent(QDropEvent * event)
00212 {
00213     KUrl::List list = KUrl::List::fromMimeData(event->mimeData());
00214     QString str;
00215 
00216     if (!list.isEmpty())
00217     {
00230             if (list.count() == 1)
00231             {
00232                 str = event->mimeData()->text();
00233                 NewTransferDialog::showNewTransferDialog(str);
00234             }
00235             else
00236                 NewTransferDialog::showNewTransferDialog(list);
00237         //}
00238     }
00239     else
00240     {
00241         NewTransferDialog::showNewTransferDialog();
00242     }
00243 
00244     if ( Settings::animateDropTarget() )
00245         playAnimationSync();
00246 }
00247 
00248 
00249 void DropTarget::closeEvent( QCloseEvent * e )
00250 {
00251     if( kapp->sessionSaving() )
00252         e->ignore();
00253     else
00254     {
00255         setVisible( false );
00256         e->accept();
00257     }
00258 }
00259 
00260 void DropTarget::mousePressEvent(QMouseEvent * e)
00261 {
00262     // If the user click on the droptarget, stop any animation that is going on
00263     if(animTimer)
00264     {
00265         animTimer->stop();
00266         delete animTimer;
00267         animTimer = 0;
00268     }
00269 
00270     if (e->button() == Qt::LeftButton)
00271     {
00272         isdragging = true;
00273         dx = e->globalPos().x() - pos().x();
00274         dy = e->globalPos().y() - pos().y();
00275     }
00276     else if (e->button() == Qt::RightButton)
00277     {
00278         pop_show->setText(parentWidget->isHidden() ?
00279                               i18n("Show Main Window") :
00280                               i18n("Hide Main Window") );
00281         popupMenu->popup(e->globalPos());
00282     }
00283     else if (e->button() == Qt::MidButton)
00284     {
00285         //Here we paste the transfer
00286         QString newtransfer = QApplication::clipboard()->text();
00287         newtransfer = newtransfer.trimmed();
00288 
00289         if(!newtransfer.isEmpty())
00290             KGet::addTransfer(KUrl(newtransfer), QString(), QString(), true);
00291     }
00292 }
00293 
00294 void DropTarget::mouseReleaseEvent(QMouseEvent *)
00295 {
00296     isdragging = false;
00297 }
00298 
00299 void DropTarget::mouseDoubleClickEvent(QMouseEvent * e)
00300 {
00301     if (e->button() == Qt::LeftButton)
00302         toggleMinimizeRestore();
00303 }
00304 
00305 void DropTarget::mouseMoveEvent(QMouseEvent * e)
00306 {
00307     Q_UNUSED(e);
00308     if ( isdragging && !Settings::dropSticky() )
00309     {
00310         move( QCursor::pos().x() - dx, QCursor::pos().y() - dy );
00311         e->accept();
00312     }
00313 }
00314 
00315 void DropTarget::paintEvent( QPaintEvent * )
00316 {
00317     QPainter p(this);
00318     p.drawPixmap(0, 0, cachedPixmap);
00319 }
00320 
00321 void DropTarget::toggleSticky()
00322 {
00323     Settings::setDropSticky( !Settings::dropSticky() );
00324     pop_sticky->setChecked(Settings::dropSticky());
00325 
00326     if ( Settings::dropSticky() )
00327         KWindowSystem::setState(winId(), KWindowSystem::SkipTaskbar | KWindowSystem::StaysOnTop | KWindowSystem::Sticky);
00328     else
00329         KWindowSystem::clearState(winId(), KWindowSystem::Sticky);
00330 }
00331 
00332 void DropTarget::toggleMinimizeRestore()
00333 {
00334     bool nextState = parentWidget->isHidden();
00335     Settings::setShowMain( nextState );
00336     parentWidget->setVisible( nextState );
00337 }
00338 
00340 void DropTarget::slotAnimateShow()
00341 {
00342     static float dT = TARGET_ANI_MS / 1000.0;
00343 
00344     ani_vy -= ani_y * 30 * dT;
00345     ani_vy *= 0.95;
00346     ani_y += ani_vy * dT;
00347 
00348     move(x(), (int)(position.y() * (1 + ani_y)));
00349 
00350     if ( fabs(ani_y) < 0.01 && fabs(ani_vy) < 0.01 && animTimer )
00351     {
00352         animTimer->stop();
00353         delete animTimer;
00354         animTimer = 0;
00355 
00356         if (showInformation)
00357             KPassivePopup::message(i18n("Drop Target"),
00358                                    i18n("You can drag download links into the drop target."), this);
00359     }
00360 }
00361 
00362 void DropTarget::slotAnimateHide()
00363 {
00364     static float dT = TARGET_ANI_MS / 1000.0;
00365 
00366     ani_vy += -2000 * dT;
00367     float new_y = y() + ani_vy * dT;
00368 
00369     if ( new_y < -height() )
00370     {
00371         animTimer->stop();
00372         delete animTimer;
00373         animTimer = 0;
00374         move( x(), (int)(ani_y) );
00375         hide();
00376     } else
00377         move( x(), (int)(new_y) );
00378 }
00379 
00380 void DropTarget::slotAnimateSync()
00381 {
00382     static float dT = TARGET_ANI_MS / 1000.0;
00383 
00384     ani_vy += 4 * dT;               // from -1 to 1 in 0.5 seconds
00385     float i = 2 * M_PI * ani_vy;    // from -2PI to 2PI
00386     float j = (i == 0.0) ? 1 : (sin( i ) / i) * (1 + fabs(ani_vy));
00387 
00388     if ( ani_vy >= 1 )
00389     {
00390         animTimer->stop();
00391         delete animTimer;
00392         animTimer = 0;
00393         move( x(), (int)(ani_y) );
00394     } else
00395         move( x(), (int)(ani_y + 6*j) );
00396 }
00397 
00398 void DropTarget::slotClose()
00399 {
00400     if (!Settings::expertMode())
00401     {
00402         KMessageBox::information(parentWidget,
00403             i18n("Drop target has been hidden. If you want to show it "
00404                  "again, go to Settings->Configure KGet->Look & Feel."),
00405             i18n("Hiding drop target"),
00406             "CloseDroptarget");
00407     }
00408     setVisible( false );
00409 }
00410 
00411 #include "droptarget.moc"
kget

droptarget.cpp

kget

kdenetwork
