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 <kfilemetadatawidget.h>
  26 #include <KSeparator>
  27 #include <KWindowSystem>
  28
  29 #include <QLabel>
  30 #include <QStyleOptionFrame>
  31 #include <QStylePainter>
  32 #include <QVBoxLayout>
  33
  34 // For the blurred tooltip background
  35 #include <plasma/windoweffects.h>
  36
  37 FileMetaDataToolTip::FileMetaDataToolTip(QWidget* parent) :
  38     QWidget(parent),
  39     m_preview(0),
  40     m_name(0),
  41     m_fileMetaDataWidget(0)
  42 {
  43     setAttribute(Qt::WA_TranslucentBackground);
  44     setWindowFlags(Qt::ToolTip | Qt::FramelessWindowHint);
  45
  46     // Create widget for file preview
  47     m_preview = new QLabel(this);
  48     m_preview->setAlignment(Qt::AlignTop);
  49
  50     // Create widget for file name
  51     m_name = new QLabel(this);
  52     m_name->setForegroundRole(QPalette::ToolTipText);
  53     QFont font = m_name->font();
  54     font.setBold(true);
  55     m_name->setFont(font);
  56
  57     // Create widget for the meta data
  58     m_fileMetaDataWidget = new KFileMetaDataWidget(this);
  59     m_fileMetaDataWidget->setForegroundRole(QPalette::ToolTipText);
  60     m_fileMetaDataWidget->setReadOnly(true);
  61     connect(m_fileMetaDataWidget, SIGNAL(metaDataRequestFinished(KFileItemList)),
  62             this, SIGNAL(metaDataRequestFinished(KFileItemList)));
  63
  64     QVBoxLayout* textLayout = new QVBoxLayout();
  65     textLayout->addWidget(m_name);
  66     textLayout->addWidget(new KSeparator());
  67     textLayout->addWidget(m_fileMetaDataWidget);
  68     textLayout->setAlignment(m_name, Qt::AlignCenter);
  69     textLayout->setAlignment(m_fileMetaDataWidget, Qt::AlignLeft);
  70     // Assure that the text-layout gets top-aligned by adding a stretch.
  71     // Don't use textLayout->setAlignment(Qt::AlignTop) instead, as this does
  72     // not work with the heightForWidth()-size-hint of m_fileMetaDataWidget
  73     // (see bug #241608)
  74     textLayout->addStretch();
  75
  76     QHBoxLayout* tipLayout = new QHBoxLayout(this);
  77     tipLayout->addWidget(m_preview);
  78     tipLayout->addSpacing(tipLayout->margin());
  79     tipLayout->addLayout(textLayout);
  80 }
  81
  82 FileMetaDataToolTip::~FileMetaDataToolTip()
  83 {
  84 }
  85
  86 void FileMetaDataToolTip::setPreview(const QPixmap& pixmap)
  87 {
  88     m_preview->setPixmap(pixmap);
  89 }
  90
  91 QPixmap FileMetaDataToolTip::preview() const
  92 {
  93     if (m_preview->pixmap()) {
  94         return *m_preview->pixmap();
  95     }
  96     return QPixmap();
  97 }
  98
  99 void FileMetaDataToolTip::setName(const QString& name)
 100 {
 101     m_name->setText(name);
 102 }
 103
 104 QString FileMetaDataToolTip::name() const
 105 {
 106     return m_name->text();
 107 }
 108
 109 void FileMetaDataToolTip::setItems(const KFileItemList& items)
 110 {
 111     m_fileMetaDataWidget->setItems(items);
 112 }
 113
 114 KFileItemList FileMetaDataToolTip::items() const
 115 {
 116     return m_fileMetaDataWidget->items();
 117 }
 118
 119 void FileMetaDataToolTip::paintEvent(QPaintEvent* event)
 120 {
 121     QStylePainter painter(this);
 122     QStyleOptionFrame option;
 123     option.init(this);
 124     painter.drawPrimitive(QStyle::PE_PanelTipLabel, option);
 125     painter.end();
 126
 127     QWidget::paintEvent(event);
 128 }
 129
 130 void FileMetaDataToolTip::showEvent(QShowEvent *)
 131 {
 132     Plasma::WindowEffects::overrideShadow(winId(), true);
 133     Plasma::WindowEffects::enableBlurBehind(winId(), true, mask());
 134 }
 135
 136 #include "filemetadatatooltip.moc"