Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 300 insertions, 0 deletions

diff --git a/libkonq/konq_filetip.cc b/libkonq/konq_filetip.cc
new file mode 100644
index 000000000..c9c661c57
--- /dev/null
+++ b/libkonq/konq_filetip.cc
@@ -0,0 +1,300 @@
+/* This file is part of the KDE projects
+   Copyright (C) 1998, 1999 Torben Weis <weis@kde.org>
+   Copyright (C) 2000, 2001, 2002 David Faure <david@mandrakesoft.com>
+   Copyright (C) 2004 Martin Koller <m.koller@surfeu.at>
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+
+   This program 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
+   General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; see the file COPYING.  If not, write to
+   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.
+*/
+
+#include <konq_filetip.h>
+
+#include <kfileitem.h>
+#include <kglobalsettings.h>
+#include <kstandarddirs.h>
+#include <kapplication.h>
+
+#include <qlabel.h>
+#include <qtooltip.h>
+#include <qlayout.h>
+#include <qpainter.h>
+#include <qscrollview.h>
+#include <qtimer.h>
+
+#include <fixx11h.h>
+//--------------------------------------------------------------------------------
+
+KonqFileTip::KonqFileTip( QScrollView* parent )
+  : QFrame( 0, 0, WStyle_Customize | WStyle_NoBorder | WStyle_Tool | WStyle_StaysOnTop | WX11BypassWM ),
+    m_on( false ),
+    m_preview( false ),
+    m_filter( false ),
+    m_corner( 0 ),
+    m_num( 0 ),
+    m_view( parent ),
+    m_item( 0 ),
+    m_previewJob( 0 )
+{
+    m_iconLabel = new QLabel(this);
+    m_textLabel = new QLabel(this);
+    m_textLabel->setAlignment(Qt::AlignAuto | Qt::AlignTop);
+
+    QGridLayout* layout = new QGridLayout(this, 1, 2, 8, 0);
+    layout->addWidget(m_iconLabel, 0, 0);
+    layout->addWidget(m_textLabel, 0, 1);
+    layout->setResizeMode(QLayout::Fixed);
+
+    setPalette( QToolTip::palette() );
+    setMargin( 1 );
+    setFrameStyle( QFrame::Plain | QFrame::Box );
+
+    m_timer = new QTimer(this);
+
+    hide();
+}
+
+KonqFileTip::~KonqFileTip()
+{
+   if ( m_previewJob ) {
+        m_previewJob->kill();
+        m_previewJob = 0;
+    }
+}
+
+void KonqFileTip::setPreview(bool on)
+{
+    m_preview = on;
+    if(on)
+        m_iconLabel->show();
+    else
+        m_iconLabel->hide();
+}
+
+void KonqFileTip::setOptions( bool on, bool preview, int num )
+{
+    setPreview(preview);
+    m_on = on;
+    m_num = num;
+}
+
+void KonqFileTip::setItem( KFileItem *item, const QRect &rect, const QPixmap *pixmap )
+{
+    hideTip();
+
+    if (!m_on) return;
+
+    if ( m_previewJob ) {
+        m_previewJob->kill();
+        m_previewJob = 0;
+    }
+
+    m_rect = rect;
+    m_item = item;
+
+    if ( m_item ) {
+        if (m_preview) {
+            if ( pixmap )
+              m_iconLabel->setPixmap( *pixmap );
+            else
+              m_iconLabel->setPixmap( QPixmap() );
+        }
+
+        // Don't start immediately, because the user could move the mouse over another item
+        // This avoids a quick sequence of started preview-jobs
+        m_timer->disconnect( this );
+        connect(m_timer, SIGNAL(timeout()), this, SLOT(startDelayed()));
+        m_timer->start( 300, true );
+    }
+}
+
+void KonqFileTip::reposition()
+{
+    if ( m_rect.isEmpty() || !m_view || !m_view->viewport() ) return;
+
+    QRect rect = m_rect;
+    QPoint off = m_view->viewport()->mapToGlobal( m_view->contentsToViewport( rect.topRight() ) );
+    rect.moveTopRight( off );
+
+    QPoint pos = rect.center();
+    // m_corner:
+    // 0: upperleft
+    // 1: upperright
+    // 2: lowerleft
+    // 3: lowerright
+    // 4+: none
+    m_corner = 0;
+    // should the tooltip be shown to the left or to the right of the ivi ?
+    QRect desk = KGlobalSettings::desktopGeometry(rect.center());
+    if (rect.center().x() + width() > desk.right())
+    {
+        // to the left
+        if (pos.x() - width() < 0) {
+            pos.setX(0);
+            m_corner = 4;
+        } else {
+            pos.setX( pos.x() - width() );
+            m_corner = 1;
+        }
+    }
+    // should the tooltip be shown above or below the ivi ?
+    if (rect.bottom() + height() > desk.bottom())
+    {
+        // above
+        pos.setY( rect.top() - height() );
+        m_corner += 2;
+    }
+    else pos.setY( rect.bottom() + 1 );
+
+    move( pos );
+    update();
+}
+
+void KonqFileTip::gotPreview( const KFileItem* item, const QPixmap& pixmap )
+{
+    m_previewJob = 0;
+    if (item != m_item) return;
+
+    m_iconLabel -> setPixmap(pixmap);
+}
+
+void KonqFileTip::gotPreviewResult()
+{
+    m_previewJob = 0;
+}
+
+void KonqFileTip::drawContents( QPainter *p )
+{
+    static const char * const names[] = {
+        "arrow_topleft",
+        "arrow_topright",
+        "arrow_bottomleft",
+        "arrow_bottomright"
+    };
+
+    if (m_corner >= 4) {  // 4 is empty, so don't draw anything
+        QFrame::drawContents( p );
+        return;
+    }
+
+    if ( m_corners[m_corner].isNull())
+        m_corners[m_corner].load( locate( "data", QString::fromLatin1( "konqueror/pics/%1.png" ).arg( names[m_corner] ) ) );
+
+    QPixmap &pix = m_corners[m_corner];
+
+    switch ( m_corner )
+    {
+        case 0:
+            p->drawPixmap( 3, 3, pix );
+            break;
+        case 1:
+            p->drawPixmap( width() - pix.width() - 3, 3, pix );
+            break;
+        case 2:
+            p->drawPixmap( 3, height() - pix.height() - 3, pix );
+            break;
+        case 3:
+            p->drawPixmap( width() - pix.width() - 3, height() - pix.height() - 3, pix );
+            break;
+    }
+
+    QFrame::drawContents( p );
+}
+
+void KonqFileTip::setFilter( bool enable )
+{
+    if ( enable == m_filter ) return;
+
+    if ( enable ) {
+        kapp->installEventFilter( this );
+        QApplication::setGlobalMouseTracking( true );
+    }
+    else {
+        QApplication::setGlobalMouseTracking( false );
+        kapp->removeEventFilter( this );
+    }
+    m_filter = enable;
+}
+
+void KonqFileTip::showTip()
+{
+    QString text = m_item->getToolTipText(m_num);
+
+    if ( text.isEmpty() ) return;
+
+    m_timer->disconnect( this );
+    connect(m_timer, SIGNAL(timeout()), this, SLOT(hideTip()));
+    m_timer->start( 15000, true );
+
+    m_textLabel->setText( text );
+
+    setFilter( true );
+
+    reposition();
+    show();
+}
+
+void KonqFileTip::hideTip()
+{
+    m_timer->stop();
+    setFilter( false );
+    if ( isShown() && m_view && m_view->viewport() &&
+         (m_view->horizontalScrollBar()->isShown() || m_view->verticalScrollBar()->isShown()) )
+      m_view->viewport()->update();
+    hide();
+}
+void KonqFileTip::startDelayed()
+{
+    if ( m_preview ) {
+        KFileItemList oneItem;
+        oneItem.append( m_item );
+
+        m_previewJob = KIO::filePreview( oneItem, 256, 256, 64, 70, true, true, 0);
+        connect( m_previewJob, SIGNAL( gotPreview( const KFileItem *, const QPixmap & ) ),
+                 this, SLOT( gotPreview( const KFileItem *, const QPixmap & ) ) );
+        connect( m_previewJob, SIGNAL( result( KIO::Job * ) ),
+                 this, SLOT( gotPreviewResult() ) );
+    }
+
+    m_timer->disconnect( this );
+    connect(m_timer, SIGNAL(timeout()), this, SLOT(showTip()));
+    m_timer->start( 400, true );
+}
+
+void KonqFileTip::resizeEvent( QResizeEvent* event )
+{
+    QFrame::resizeEvent(event);
+    reposition();
+}
+
+bool KonqFileTip::eventFilter( QObject *, QEvent *e )
+{
+    switch ( e->type() )
+    {
+        case QEvent::Leave:
+        case QEvent::MouseButtonPress:
+        case QEvent::MouseButtonRelease:
+        case QEvent::KeyPress:
+        case QEvent::KeyRelease:
+        case QEvent::FocusIn:
+        case QEvent::FocusOut:
+        case QEvent::Wheel:
+            hideTip();
+        default: break;
+    }
+
+    return false;
+}
+
+#include "konq_filetip.moc"