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 #include <nepomuk2/filemetadatawidget.h>
  34
  35 // For the blurred tooltip background
  36 #include <plasma/windoweffects.h>
  37
  38 FileMetaDataToolTip::FileMetaDataToolTip(QWidget* parent) :
  39     QWidget(parent),
  40     m_preview(0),
  41     m_name(0),
  42     m_fileMetaDataWidget(0)
  43 {
  44     setAttribute(Qt::WA_TranslucentBackground);
  45     setWindowFlags(Qt::ToolTip | Qt::FramelessWindowHint);
  46
  47     // Create widget for file preview
  48     m_preview = new QLabel(this);
  49     m_preview->setAlignment(Qt::AlignTop);
  50
  51     // Create widget for file name
  52     m_name = new QLabel(this);
  53     m_name->setForegroundRole(QPalette::ToolTipText);
  54     QFont font = m_name->font();
  55     font.setBold(true);
  56     m_name->setFont(font);
  57
  58     // Create widget for the meta data
  59     m_fileMetaDataWidget = new Nepomuk2::FileMetaDataWidget(this);
  60     m_fileMetaDataWidget->setForegroundRole(QPalette::ToolTipText);
  61     m_fileMetaDataWidget->setReadOnly(true);
  62     connect(m_fileMetaDataWidget, SIGNAL(metaDataRequestFinished(KFileItemList)),
  63             this, SIGNAL(metaDataRequestFinished(KFileItemList)));
  64
  65     QVBoxLayout* textLayout = new QVBoxLayout();
  66     textLayout->addWidget(m_name);
  67     textLayout->addWidget(new KSeparator());
  68     textLayout->addWidget(m_fileMetaDataWidget);
  69     textLayout->setAlignment(m_name, Qt::AlignCenter);
  70     textLayout->setAlignment(m_fileMetaDataWidget, Qt::AlignLeft);
  71     // Assure that the text-layout gets top-aligned by adding a stretch.
  72     // Don't use textLayout->setAlignment(Qt::AlignTop) instead, as this does
  73     // not work with the heightForWidth()-size-hint of m_fileMetaDataWidget
  74     // (see bug #241608)
  75     textLayout->addStretch();
  76
  77     QHBoxLayout* tipLayout = new QHBoxLayout(this);
  78     tipLayout->addWidget(m_preview);
  79     tipLayout->addSpacing(tipLayout->margin());
  80     tipLayout->addLayout(textLayout);
  81 }
  82
  83 FileMetaDataToolTip::~FileMetaDataToolTip()
  84 {
  85 }
  86
  87 void FileMetaDataToolTip::setPreview(const QPixmap& pixmap)
  88 {
  89     m_preview->setPixmap(pixmap);
  90 }
  91
  92 QPixmap FileMetaDataToolTip::preview() const
  93 {
  94     if (m_preview->pixmap()) {
  95         return *m_preview->pixmap();
  96     }
  97     return QPixmap();
  98 }
  99
 100 void FileMetaDataToolTip::setName(const QString& name)
 101 {
 102     m_name->setText(name);
 103 }
 104
 105 QString FileMetaDataToolTip::name() const
 106 {
 107     return m_name->text();
 108 }
 109
 110 void FileMetaDataToolTip::setItems(const KFileItemList& items)
 111 {
 112     m_fileMetaDataWidget->setItems(items);
 113 }
 114
 115 KFileItemList FileMetaDataToolTip::items() const
 116 {
 117     return m_fileMetaDataWidget->items();
 118 }
 119
 120 void FileMetaDataToolTip::paintEvent(QPaintEvent* event)
 121 {
 122     QStylePainter painter(this);
 123     QStyleOptionFrame option;
 124     option.init(this);
 125     painter.drawPrimitive(QStyle::PE_PanelTipLabel, option);
 126     painter.end();
 127
 128     QWidget::paintEvent(event);
 129 }
 130
 131 void FileMetaDataToolTip::showEvent(QShowEvent *)
 132 {
 133     Plasma::WindowEffects::overrideShadow(winId(), true);
 134     Plasma::WindowEffects::enableBlurBehind(winId(), true, mask());
 135 }
 136
 137 #include "filemetadatatooltip.moc"