File indexing completed on 2024-05-12 16:02:29

 /*
  *  SPDX-FileCopyrightText: 2020 Halla Rempt <halla@valdyas.org>
  *
  *  SPDX-License-Identifier: GPL-2.0-or-later
  */
 #include "KisPreviewFileDialog.h"
 
 #include <QSplitter>
 #include <QLabel>
 #include <QFileIconProvider>
 #include <QDebug>
 #include <QToolButton>
 #include <QHBoxLayout>
 
 #include <kconfiggroup.h>
 #include <ksharedconfig.h>
 #include <klocalizedstring.h>
 #include <kis_icon_utils.h>
 
 KisAbstractFileIconCreator *KisPreviewFileDialog::s_iconCreator {0};
 
 KisFileIconProvider::KisFileIconProvider(qreal devicePixelRatioF)
     : QFileIconProvider()
     , m_devicePixelRatioF(devicePixelRatioF)
 {
 }
 
 QIcon KisFileIconProvider::icon(const QFileIconProvider::IconType type) const
 {
     return QFileIconProvider::icon(type);
 }
 
 QIcon KisFileIconProvider::icon(const QFileInfo &fi) const
 {
     QIcon icon;
     if (KisPreviewFileDialog::s_iconCreator && KisPreviewFileDialog::s_iconCreator->createFileIcon(fi.filePath(), icon, m_devicePixelRatioF, QSize(512, 512))) {
         return icon;
     }
     return QFileIconProvider::icon(fi.path());
 }
 
 KisPreviewFileDialog::KisPreviewFileDialog(QWidget *parent, const QString &caption, const QString &directory, const QString &filter)
     : QFileDialog(parent, caption, directory, filter)
 {
     KConfigGroup group = KSharedConfig::openConfig()->group("KisPreviewFileDialog");
     if (group.readEntry("show_thumbnails", false)) {
         m_iconProvider = new KisFileIconProvider(devicePixelRatioF());
     }
 
     m_preview = new QLabel(i18n("Preview"), this);
     m_preview->setAlignment(Qt::AlignCenter);
     m_preview->setMinimumWidth(256);
 
     m_previewToggle = new QToolButton(this);
     m_previewToggle->setCheckable(true);
     m_previewToggle->setChecked(group.readEntry("show_preview", true));
     m_previewToggle->setIcon(KisIconUtils::loadIcon("preview"));
     m_previewToggle->setToolTip(i18n("Toggle Preview"));
     connect(m_previewToggle, SIGNAL(toggled(bool)), SLOT(previewToggled(bool)));
 
     connect(this, SIGNAL(currentChanged(const QString&)), this, SLOT(onCurrentChanged(const QString&)));
 }
 
 void KisPreviewFileDialog::resetIconProvider()
 {
     QSplitter *splitter = findChild<QSplitter *>();
     if (splitter) {
         splitter->addWidget(m_preview);
         resize(width() + m_preview->width(), height());
     }
 
     QHBoxLayout *layout = findChild<QHBoxLayout *>();
     if (layout) {
         layout->addWidget(m_previewToggle);
     }
 
     KConfigGroup group = KSharedConfig::openConfig()->group("File Dialogs");
     if (group.readEntry("show_thumbnails", false)) {
         setIconProvider(m_iconProvider);
     }
 }
 
 void KisPreviewFileDialog::onCurrentChanged(const QString &path)
 {
     // Generate the preview only if we're not using the native dialog.
     // In AppImages, the platform plugins are inaccessible,
     // so we check the existance of a widget layout instead.
     if ((testOption(QFileDialog::DontUseNativeDialog) || layout()) && m_preview) {
         QIcon icon;
         if (s_iconCreator && s_iconCreator->createFileIcon(path, icon, devicePixelRatioF(), QSize(512, 512))) {
             auto pixmap = icon.pixmap(m_preview->width(), m_preview->height());
             pixmap.setDevicePixelRatio(devicePixelRatioF());
             m_preview->setPixmap(pixmap);
         }
         else {
             m_preview->setText(i18n("No Preview"));
         }
     }
 }
 
 void KisPreviewFileDialog::previewToggled(bool showPreview)
 {
     KConfigGroup group = KSharedConfig::openConfig()->group("KisPreviewFileDialog");
     group.writeEntry("show_preview", showPreview);
     m_preview->setVisible(showPreview);
 }
 
 
 KisAbstractFileIconCreator::KisAbstractFileIconCreator()
 {
 }
 
 KisAbstractFileIconCreator::~KisAbstractFileIconCreator()
 {
 }