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     QFont font = m_name->font();
  59     font.setBold(true);
  60     m_name->setFont(font);
  61
  62     // Create widget for the meta data
  63 #ifndef HAVE_NEPOMUK
  64     m_fileMetaDataWidget = new KFileMetaDataWidget(this);
  65 #else
  66     m_fileMetaDataWidget = new Nepomuk2::FileMetaDataWidget(this);
  67 #endif
  68     m_fileMetaDataWidget->setForegroundRole(QPalette::ToolTipText);
  69     m_fileMetaDataWidget->setReadOnly(true);
  70     connect(m_fileMetaDataWidget, SIGNAL(metaDataRequestFinished(KFileItemList)),
  71             this, SIGNAL(metaDataRequestFinished(KFileItemList)));
  72
  73     QVBoxLayout* textLayout = new QVBoxLayout();
  74     textLayout->addWidget(m_name);
  75     textLayout->addWidget(new KSeparator());
  76     textLayout->addWidget(m_fileMetaDataWidget);
  77     textLayout->setAlignment(m_name, Qt::AlignCenter);
  78     textLayout->setAlignment(m_fileMetaDataWidget, Qt::AlignLeft);
  79     // Assure that the text-layout gets top-aligned by adding a stretch.
  80     // Don't use textLayout->setAlignment(Qt::AlignTop) instead, as this does
  81     // not work with the heightForWidth()-size-hint of m_fileMetaDataWidget
  82     // (see bug #241608)
  83     textLayout->addStretch();
  84
  85     QHBoxLayout* tipLayout = new QHBoxLayout(this);
  86     tipLayout->addWidget(m_preview);
  87     tipLayout->addSpacing(tipLayout->margin());
  88     tipLayout->addLayout(textLayout);
  89 }
  90
  91 FileMetaDataToolTip::~FileMetaDataToolTip()
  92 {
  93 }
  94
  95 void FileMetaDataToolTip::setPreview(const QPixmap& pixmap)
  96 {
  97     m_preview->setPixmap(pixmap);
  98 }
  99
 100 QPixmap FileMetaDataToolTip::preview() const
 101 {
 102     if (m_preview->pixmap()) {
 103         return *m_preview->pixmap();
 104     }
 105     return QPixmap();
 106 }
 107
 108 void FileMetaDataToolTip::setName(const QString& name)
 109 {
 110     m_name->setText(name);
 111 }
 112
 113 QString FileMetaDataToolTip::name() const
 114 {
 115     return m_name->text();
 116 }
 117
 118 void FileMetaDataToolTip::setItems(const KFileItemList& items)
 119 {
 120     m_fileMetaDataWidget->setItems(items);
 121 }
 122
 123 KFileItemList FileMetaDataToolTip::items() const
 124 {
 125     return m_fileMetaDataWidget->items();
 126 }
 127
 128 void FileMetaDataToolTip::paintEvent(QPaintEvent* event)
 129 {
 130     QStylePainter painter(this);
 131     QStyleOptionFrame option;
 132     option.init(this);
 133     painter.drawPrimitive(QStyle::PE_PanelTipLabel, option);
 134     painter.end();
 135
 136     QWidget::paintEvent(event);
 137 }
 138
 139 void FileMetaDataToolTip::showEvent(QShowEvent *)
 140 {
 141     Plasma::WindowEffects::overrideShadow(winId(), true);
 142     Plasma::WindowEffects::enableBlurBehind(winId(), true, mask());
 143 }
 144
 145 #include "filemetadatatooltip.moc"