src/views/tooltips/dolphinfilemetadatawidget.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 "dolphinfilemetadatawidget.h"
  23
  24 #include <KColorScheme>
  25 #include <KSeparator>
  26 #include <KStringHandler>
  27 #include <QTextDocument>
  28
  29 #include <QLabel>
  30 #include <QStyleOptionFrame>
  31 #include <QStylePainter>
  32 #include <QVBoxLayout>
  33 #include <QTextLayout>
  34
  35 #ifndef HAVE_BALOO
  36 #include <KFileMetaDataWidget>
  37 #else
  38 #include <Baloo/FileMetaDataWidget>
  39 #endif
  40
  41 DolphinFileMetaDataWidget::DolphinFileMetaDataWidget(QWidget* parent) :
  42     QWidget(parent),
  43     m_preview(nullptr),
  44     m_name(nullptr),
  45     m_fileMetaDataWidget(nullptr)
  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     m_name->setTextFormat(Qt::PlainText);
  55     m_name->setAlignment(Qt::AlignHCenter);
  56
  57     QFont font = m_name->font();
  58     font.setBold(true);
  59     m_name->setFont(font);
  60
  61     QFontMetrics fontMetrics(font);
  62     m_name->setMaximumWidth(fontMetrics.averageCharWidth() * 40);
  63
  64     // Create widget for the meta data
  65 #ifndef HAVE_BALOO
  66     m_fileMetaDataWidget = new KFileMetaDataWidget(this);
  67     connect(m_fileMetaDataWidget, &KFileMetaDataWidget::metaDataRequestFinished,
  68             this, &DolphinFileMetaDataWidget::metaDataRequestFinished);
  69     connect(m_fileMetaDataWidget, &KFileMetaDataWidget::urlActivated,
  70             this, &DolphinFileMetaDataWidget::urlActivated);
  71 #else
  72     m_fileMetaDataWidget = new Baloo::FileMetaDataWidget(this);
  73     connect(m_fileMetaDataWidget, &Baloo::FileMetaDataWidget::metaDataRequestFinished,
  74             this, &DolphinFileMetaDataWidget::metaDataRequestFinished);
  75     connect(m_fileMetaDataWidget, &Baloo::FileMetaDataWidget::urlActivated,
  76             this, &DolphinFileMetaDataWidget::urlActivated);
  77 #endif
  78     m_fileMetaDataWidget->setForegroundRole(QPalette::ToolTipText);
  79     m_fileMetaDataWidget->setReadOnly(true);
  80
  81     QVBoxLayout* textLayout = new QVBoxLayout();
  82     textLayout->addWidget(m_name);
  83     textLayout->addWidget(new KSeparator());
  84     textLayout->addWidget(m_fileMetaDataWidget);
  85     textLayout->setAlignment(m_name, Qt::AlignCenter);
  86     textLayout->setAlignment(m_fileMetaDataWidget, Qt::AlignLeft);
  87     // Assure that the text-layout gets top-aligned by adding a stretch.
  88     // Don't use textLayout->setAlignment(Qt::AlignTop) instead, as this does
  89     // not work with the heightForWidth()-size-hint of m_fileMetaDataWidget
  90     // (see bug #241608)
  91     textLayout->addStretch();
  92
  93     QHBoxLayout* layout = new QHBoxLayout(this);
  94     layout->addWidget(m_preview);
  95     layout->addSpacing(layout->margin());
  96     layout->addLayout(textLayout);
  97 }
  98
  99 DolphinFileMetaDataWidget::~DolphinFileMetaDataWidget()
 100 {
 101 }
 102
 103 void DolphinFileMetaDataWidget::setPreview(const QPixmap& pixmap)
 104 {
 105     m_preview->setPixmap(pixmap);
 106 }
 107
 108 QPixmap DolphinFileMetaDataWidget::preview() const
 109 {
 110     if (m_preview->pixmap()) {
 111         return *m_preview->pixmap();
 112     }
 113     return QPixmap();
 114 }
 115
 116 void DolphinFileMetaDataWidget::setName(const QString& name)
 117 {
 118     QTextOption textOption;
 119     textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
 120
 121     const QString processedName = Qt::mightBeRichText(name) ? name : KStringHandler::preProcessWrap(name);
 122
 123     QTextLayout textLayout(processedName);
 124     textLayout.setFont(m_name->font());
 125     textLayout.setTextOption(textOption);
 126
 127     QString wrappedText;
 128     wrappedText.reserve(processedName.length());
 129
 130     // wrap the text to fit into the maximum width of m_name
 131     textLayout.beginLayout();
 132     QTextLine line = textLayout.createLine();
 133     while (line.isValid()) {
 134         line.setLineWidth(m_name->maximumWidth());
 135         wrappedText += processedName.midRef(line.textStart(), line.textLength());
 136
 137         line = textLayout.createLine();
 138         if (line.isValid()) {
 139             wrappedText += QChar::LineSeparator;
 140         }
 141     }
 142     textLayout.endLayout();
 143
 144     m_name->setText(wrappedText);
 145 }
 146
 147 QString DolphinFileMetaDataWidget::name() const
 148 {
 149     return m_name->text();
 150 }
 151
 152 void DolphinFileMetaDataWidget::setItems(const KFileItemList& items)
 153 {
 154     m_fileMetaDataWidget->setItems(items);
 155 }
 156
 157 KFileItemList DolphinFileMetaDataWidget::items() const
 158 {
 159     return m_fileMetaDataWidget->items();
 160 }
 161