src/views/tooltips/dolphinfilemetadatawidget.cpp

   1 /*
   2  * SPDX-FileCopyrightText: 2010 Peter Penz <peter.penz19@gmail.com>
   3  * SPDX-FileCopyrightText: 2008 Fredrik Höglund <fredrik@kde.org>
   4  * SPDX-FileCopyrightText: 2012 Mark Gaiser <markg85@gmail.com>
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-or-later
   7  */
   8
   9 #include "dolphinfilemetadatawidget.h"
  10
  11 #include <Baloo/FileMetaDataWidget>
  12 #include <KColorScheme>
  13 #include <KSeparator>
  14 #include <KStringHandler>
  15
  16 #include <QLabel>
  17 #include <QStyleOptionFrame>
  18 #include <QStylePainter>
  19 #include <QTextDocument>
  20 #include <QTextLayout>
  21 #include <QVBoxLayout>
  22
  23 DolphinFileMetaDataWidget::DolphinFileMetaDataWidget(QWidget *parent)
  24     : QWidget(parent)
  25     , m_preview(nullptr)
  26     , m_name(nullptr)
  27     , m_fileMetaDataWidget(nullptr)
  28 {
  29     // Create widget for file preview
  30     m_preview = new QLabel(this);
  31     m_preview->setAlignment(Qt::AlignTop);
  32
  33     // Create widget for file name
  34     m_name = new QLabel(this);
  35     m_name->setForegroundRole(QPalette::ToolTipText);
  36     m_name->setTextFormat(Qt::PlainText);
  37     m_name->setAlignment(Qt::AlignHCenter);
  38
  39     QFont font = m_name->font();
  40     font.setBold(true);
  41     m_name->setFont(font);
  42
  43     QFontMetrics fontMetrics(font);
  44     m_name->setMaximumWidth(fontMetrics.averageCharWidth() * 40);
  45
  46     // Create widget for the meta data
  47     m_fileMetaDataWidget = new Baloo::FileMetaDataWidget(this);
  48     connect(m_fileMetaDataWidget, &Baloo::FileMetaDataWidget::metaDataRequestFinished, this, &DolphinFileMetaDataWidget::metaDataRequestFinished);
  49     connect(m_fileMetaDataWidget, &Baloo::FileMetaDataWidget::urlActivated, this, &DolphinFileMetaDataWidget::urlActivated);
  50     m_fileMetaDataWidget->setForegroundRole(QPalette::ToolTipText);
  51     m_fileMetaDataWidget->setReadOnly(true);
  52
  53     QVBoxLayout *textLayout = new QVBoxLayout();
  54     textLayout->addWidget(m_name);
  55     textLayout->addWidget(new KSeparator());
  56     textLayout->addWidget(m_fileMetaDataWidget);
  57     textLayout->setAlignment(m_name, Qt::AlignCenter);
  58     textLayout->setAlignment(m_fileMetaDataWidget, Qt::AlignLeft);
  59     // Assure that the text-layout gets top-aligned by adding a stretch.
  60     // Don't use textLayout->setAlignment(Qt::AlignTop) instead, as this does
  61     // not work with the heightForWidth()-size-hint of m_fileMetaDataWidget
  62     // (see bug #241608)
  63     textLayout->addStretch();
  64
  65     QHBoxLayout *layout = new QHBoxLayout(this);
  66     layout->addWidget(m_preview);
  67     layout->addSpacing(layout->contentsMargins().left());
  68     layout->addLayout(textLayout);
  69 }
  70
  71 DolphinFileMetaDataWidget::~DolphinFileMetaDataWidget()
  72 {
  73 }
  74
  75 void DolphinFileMetaDataWidget::setPreview(const QPixmap &pixmap)
  76 {
  77     m_preview->setPixmap(pixmap);
  78 }
  79
  80 QPixmap DolphinFileMetaDataWidget::preview() const
  81 {
  82     if (!m_preview->pixmap(Qt::ReturnByValue).isNull()) {
  83         return m_preview->pixmap(Qt::ReturnByValue);
  84     }
  85
  86     return QPixmap();
  87 }
  88
  89 void DolphinFileMetaDataWidget::setName(const QString &name)
  90 {
  91     QTextOption textOption;
  92     textOption.setWrapMode(QTextOption::WrapAtWordBoundaryOrAnywhere);
  93
  94     const QString processedName = Qt::mightBeRichText(name) ? name : KStringHandler::preProcessWrap(name);
  95
  96     QTextLayout textLayout(processedName);
  97     textLayout.setFont(m_name->font());
  98     textLayout.setTextOption(textOption);
  99
 100     QString wrappedText;
 101     wrappedText.reserve(processedName.length());
 102
 103     // wrap the text to fit into the maximum width of m_name
 104     textLayout.beginLayout();
 105     QTextLine line = textLayout.createLine();
 106     while (line.isValid()) {
 107         line.setLineWidth(m_name->maximumWidth());
 108         wrappedText += QStringView(processedName).mid(line.textStart(), line.textLength());
 109
 110         line = textLayout.createLine();
 111         if (line.isValid()) {
 112             wrappedText += QChar::LineSeparator;
 113         }
 114     }
 115     textLayout.endLayout();
 116
 117     m_name->setText(wrappedText);
 118 }
 119
 120 QString DolphinFileMetaDataWidget::name() const
 121 {
 122     return m_name->text();
 123 }
 124
 125 void DolphinFileMetaDataWidget::setItems(const KFileItemList &items)
 126 {
 127     m_fileMetaDataWidget->setItems(items);
 128 }
 129
 130 KFileItemList DolphinFileMetaDataWidget::items() const
 131 {
 132     return m_fileMetaDataWidget->items();
 133 }