src/selectionmode/topbar.cpp

   1 /*
   2     This file is part of the KDE project
   3     SPDX-FileCopyrightText: 2022 Felix Ernst <felixernst@kde.org>
   4
   5     SPDX-License-Identifier: LGPL-2.1-only OR LGPL-3.0-only OR LicenseRef-KDE-Accepted-LGPL
   6 */
   7
   8 #include "topbar.h"
   9
  10 #include "backgroundcolorhelper.h"
  11
  12 #include <KColorScheme>
  13 #include <KLocalizedString>
  14 #include <KToolTipHelper>
  15
  16 #include <QHBoxLayout>
  17 #include <QLabel>
  18 #include <QPushButton>
  19 #include <QStyle>
  20
  21 using namespace SelectionMode;
  22
  23 TopBar::TopBar(QWidget *parent)
  24     : AnimatedHeightWidget{parent}
  25 {
  26     setToolTip(KToolTipHelper::whatsThisHintOnly());
  27     setWhatsThis(xi18nc("@info:whatsthis",
  28                         "<title>Selection Mode</title><para>Select files or folders to manage or manipulate them."
  29                         "<list><item>Press on a file or folder to select it.</item><item>Press on an already selected file or folder to deselect it.</item>"
  30                         "<item>Pressing an empty area does <emphasis>not</emphasis> clear the selection.</item>"
  31                         "<item>Selection rectangles (created by dragging from an empty area) invert the selection status of items within.</item></list></para>"
  32                         "<para>The available action buttons at the bottom change depending on the current selection.</para>"));
  33
  34     QWidget *contentsContainer = prepareContentsContainer();
  35
  36     BackgroundColorHelper::instance()->controlBackgroundColor(this);
  37
  38     m_fullLabelString = i18nc("@info label above the view explaining the state", "Selection Mode: Click on files or folders to select or deselect them.");
  39     m_shortLabelString = i18nc("@info label above the view explaining the state", "Selection Mode");
  40     m_label = new QLabel(contentsContainer);
  41     m_label->setMinimumWidth(0);
  42     BackgroundColorHelper::instance()->controlBackgroundColor(m_label);
  43
  44     m_closeButton = new QPushButton(QIcon::fromTheme(QStringLiteral("window-close-symbolic")), "", contentsContainer);
  45     m_closeButton->setText(i18nc("@action:button", "Exit Selection Mode"));
  46     m_closeButton->setFlat(true);
  47     connect(m_closeButton, &QAbstractButton::clicked, this, &TopBar::selectionModeLeavingRequested);
  48
  49     QHBoxLayout *layout = new QHBoxLayout(contentsContainer);
  50     auto contentsMargins = layout->contentsMargins();
  51     m_preferredHeight = contentsMargins.top() + m_label->sizeHint().height() + contentsMargins.bottom();
  52     m_closeButton->setFixedHeight(m_preferredHeight);
  53     layout->setContentsMargins(0, 0, 0, 0);
  54
  55     layout->addStretch();
  56     layout->addWidget(m_label);
  57     layout->addStretch();
  58     layout->addWidget(m_closeButton);
  59 }
  60
  61 void TopBar::resizeEvent(QResizeEvent *resizeEvent)
  62 {
  63     updateLabelString();
  64     return AnimatedHeightWidget::resizeEvent(resizeEvent);
  65 }
  66
  67 void TopBar::updateLabelString()
  68 {
  69     QFontMetrics fontMetrics = m_label->fontMetrics();
  70     if (fontMetrics.horizontalAdvance(m_fullLabelString) + m_closeButton->sizeHint().width() + style()->pixelMetric(QStyle::PM_LayoutLeftMargin) * 2
  71             + style()->pixelMetric(QStyle::PM_LayoutRightMargin) * 2
  72         < width()) {
  73         m_label->setText(m_fullLabelString);
  74     } else {
  75         m_label->setText(m_shortLabelString);
  76     }
  77 }
  78
  79 #include "moc_topbar.cpp"