File indexing completed on 2024-04-28 15:51:44

 /*
     SPDX-FileCopyrightText: 2007 John Layt <john@layt.net>
 
     FilePrinterPreview based on KPrintPreview (originally LGPL)
     SPDX-FileCopyrightText: 2007 Alex Merry <huntedhacker@tiscali.co.uk>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "fileprinterpreview.h"
 
 #include <QDialogButtonBox>
 #include <QFile>
 #include <QLabel>
 #include <QPushButton>
 #include <QShowEvent>
 #include <QSize>
 #include <QVBoxLayout>
 
 #include <KLocalizedString>
 #include <KPluginFactory>
 #include <KSharedConfig>
 #include <KWindowConfig>
 #include <QLoggingCategory>
 #include <kparts/readonlypart.h>
 
 #include "gui/debug_ui.h"
 
 using namespace Okular;
 
 // This code copied from KPrintPreview by Alex Merry, adapted to do PS files instead of PDF
 
 class Okular::FilePrinterPreviewPrivate
 {
 public:
     FilePrinterPreviewPrivate(FilePrinterPreview *host, const QString &_filename)
         : q(host)
         , mainWidget(new QWidget(host))
         , previewPart(nullptr)
         , failMessage(nullptr)
         , config(KSharedConfig::openConfig(QStringLiteral("okularrc")))
 
     {
         mainlayout = new QVBoxLayout(q);
         buttonBox = new QDialogButtonBox(QDialogButtonBox::Close, q);
         mainlayout->addWidget(buttonBox);
         filename = _filename;
     }
 
     void getPart();
     bool doPreview();
     void fail();
 
     FilePrinterPreview *q;
 
     QWidget *mainWidget;
 
     QDialogButtonBox *buttonBox;
 
     QVBoxLayout *mainlayout;
 
     QString filename;
 
     KParts::ReadOnlyPart *previewPart;
     QWidget *failMessage;
 
     KSharedConfig::Ptr config;
     Q_DISABLE_COPY(FilePrinterPreviewPrivate)
 };
 static inline QString ConfigGroupKey()
 {
     return QStringLiteral("Print Preview");
 }
 
 void FilePrinterPreviewPrivate::getPart()
 {
     if (previewPart) {
         qCDebug(OkularUiDebug) << "already got a part";
         return;
     }
 
     auto result = KPluginFactory::instantiatePlugin<KParts::ReadOnlyPart>(KPluginMetaData(QStringLiteral("okularpart")), q, QVariantList() << QStringLiteral("Print/Preview"));
 
     if (!result) {
         qCWarning(OkularUiDebug) << "Part creation failed" << result.errorText;
     } else {
         previewPart = result.plugin;
     }
 }
 
 bool FilePrinterPreviewPrivate::doPreview()
 {
     if (!QFile::exists(filename)) {
         qCWarning(OkularUiDebug) << "Nothing was produced to be previewed";
         return false;
     }
 
     getPart();
     if (!previewPart) {
         // TODO: error dialog
         qCWarning(OkularUiDebug) << "Could not find a PS viewer for the preview dialog";
         fail();
         return false;
     } else {
         mainlayout->insertWidget(0, previewPart->widget());
         return previewPart->openUrl(QUrl::fromLocalFile(filename));
     }
 }
 
 void FilePrinterPreviewPrivate::fail()
 {
     if (!failMessage) {
         failMessage = new QLabel(i18n("Could not load print preview part"), q);
     }
     mainlayout->insertWidget(0, failMessage);
 }
 
 FilePrinterPreview::FilePrinterPreview(const QString &filename, QWidget *parent)
     : QDialog(parent)
     , d(new FilePrinterPreviewPrivate(this, filename))
 {
     qCDebug(OkularUiDebug) << "kdeprint: creating preview dialog";
 
     // Set up the dialog
     setWindowTitle(i18n("Print Preview"));
 
     connect(d->buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject);
 
     KWindowConfig::restoreWindowSize(windowHandle(), d->config->group(ConfigGroupKey()));
 }
 
 FilePrinterPreview::~FilePrinterPreview()
 {
     KConfigGroup group(d->config->group(ConfigGroupKey()));
     KWindowConfig::saveWindowSize(windowHandle(), group);
 
     delete d;
 }
 
 QSize FilePrinterPreview::sizeHint() const
 {
     // return a more or less useful window size, if not saved already
     return QSize(600, 500);
 }
 
 void FilePrinterPreview::showEvent(QShowEvent *event)
 {
     if (!event->spontaneous()) {
         // being shown for the first time
         if (!d->doPreview()) {
             event->accept();
             return;
         }
     }
     QDialog::showEvent(event);
 }
 
 #include "moc_fileprinterpreview.cpp"