src/views/tooltips/filemetadatatooltip.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Peter Penz <peter.penz19@gmail.com>             *
   3  *   Copyright (C) 2008 by Fredrik Höglund <fredrik@kde.org>               *
   4  *   Copyright (C) 2012 by Mark Gaiser <markg85@gmail.com>                 *
   5  *                                                                         *
   6  *   This program is free software; you can redistribute it and/or modify  *
   7  *   it under the terms of the GNU General Public License as published by  *
   8  *   the Free Software Foundation; either version 2 of the License, or     *
   9  *   (at your option) any later version.                                   *
  10  *                                                                         *
  11  *   This program is distributed in the hope that it will be useful,       *
  12  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  13  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  14  *   GNU General Public License for more details.                          *
  15  *                                                                         *
  16  *   You should have received a copy of the GNU General Public License     *
  17  *   along with this program; if not, write to the                         *
  18  *   Free Software Foundation, Inc.,                                       *
  19  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  20  ***************************************************************************/
  21
  22 #include "filemetadatatooltip.h"
  23
  24 #include <KColorScheme>
  25 #include <KSeparator>
  26 #include <KWindowSystem>
  27
  28 #include <QLabel>
  29 #include <QStyleOptionFrame>
  30 #include <QStylePainter>
  31 #include <QVBoxLayout>
  32
  33 #ifndef HAVE_NEPOMUK
  34 #include <KFileMetaDataWidget>
  35 #else
  36 #include <nepomuk2/filemetadatawidget.h>
  37 #endif
  38
  39 // For the blurred tooltip background
  40 #include <plasma/windoweffects.h>
  41
  42 FileMetaDataToolTip::FileMetaDataToolTip(QWidget* parent) :
  43     QWidget(parent),
  44     m_preview(0),
  45     m_name(0),
  46     m_fileMetaDataWidget(0)
  47 {
  48     setAttribute(Qt::WA_TranslucentBackground);
  49     setWindowFlags(Qt::ToolTip | Qt::FramelessWindowHint);
  50
  51     // Create widget for file preview
  52     m_preview = new QLabel(this);
  53     m_preview->setAlignment(Qt::AlignTop);
  54
  55     // Create widget for file name
  56     m_name = new QLabel(this);
  57     m_name->setForegroundRole(QPalette::ToolTipText);
  58     m_name->setTextFormat(Qt::PlainText);
  59     QFont font = m_name->font();
  60     font.setBold(true);
  61     m_name->setFont(font);
  62
  63     // Create widget for the meta data
  64 #ifndef HAVE_NEPOMUK
  65     m_fileMetaDataWidget = new KFileMetaDataWidget(this);
  66 #else
  67     m_fileMetaDataWidget = new Nepomuk2::FileMetaDataWidget(this);
  68 #endif
  69     m_fileMetaDataWidget->setForegroundRole(QPalette::ToolTipText);
  70     m_fileMetaDataWidget->setReadOnly(true);
  71     connect(m_fileMetaDataWidget, SIGNAL(metaDataRequestFinished(KFileItemList)),
  72             this, SIGNAL(metaDataRequestFinished(KFileItemList)));
  73
  74     QVBoxLayout* textLayout = new QVBoxLayout();
  75     textLayout->addWidget(m_name);
  76     textLayout->addWidget(new KSeparator());
  77     textLayout->addWidget(m_fileMetaDataWidget);
  78     textLayout->setAlignment(m_name, Qt::AlignCenter);
  79     textLayout->setAlignment(m_fileMetaDataWidget, Qt::AlignLeft);
  80     // Assure that the text-layout gets top-aligned by adding a stretch.
  81     // Don't use textLayout->setAlignment(Qt::AlignTop) instead, as this does
  82     // not work with the heightForWidth()-size-hint of m_fileMetaDataWidget
  83     // (see bug #241608)
  84     textLayout->addStretch();
  85
  86     QHBoxLayout* tipLayout = new QHBoxLayout(this);
  87     tipLayout->addWidget(m_preview);
  88     tipLayout->addSpacing(tipLayout->margin());
  89     tipLayout->addLayout(textLayout);
  90 }
  91
  92 FileMetaDataToolTip::~FileMetaDataToolTip()
  93 {
  94 }
  95
  96 void FileMetaDataToolTip::setPreview(const QPixmap& pixmap)
  97 {
  98     m_preview->setPixmap(pixmap);
  99 }
 100
 101 QPixmap FileMetaDataToolTip::preview() const
 102 {
 103     if (m_preview->pixmap()) {
 104         return *m_preview->pixmap();
 105     }
 106     return QPixmap();
 107 }
 108
 109 void FileMetaDataToolTip::setName(const QString& name)
 110 {
 111     m_name->setText(name);
 112 }
 113
 114 QString FileMetaDataToolTip::name() const
 115 {
 116     return m_name->text();
 117 }
 118
 119 void FileMetaDataToolTip::setItems(const KFileItemList& items)
 120 {
 121     m_fileMetaDataWidget->setItems(items);
 122 }
 123
 124 KFileItemList FileMetaDataToolTip::items() const
 125 {
 126     return m_fileMetaDataWidget->items();
 127 }
 128
 129 void FileMetaDataToolTip::paintEvent(QPaintEvent* event)
 130 {
 131     QStylePainter painter(this);
 132     QStyleOptionFrame option;
 133     option.init(this);
 134     painter.drawPrimitive(QStyle::PE_PanelTipLabel, option);
 135     painter.end();
 136
 137     QWidget::paintEvent(event);
 138 }
 139
 140 void FileMetaDataToolTip::showEvent(QShowEvent *)
 141 {
 142     Plasma::WindowEffects::overrideShadow(winId(), true);
 143     Plasma::WindowEffects::enableBlurBehind(winId(), true, mask());
 144 }
 145
 146 #include "filemetadatatooltip.moc"