svn path=/trunk/KDE/kdegraphics/okular/; revision=744225remotes/origin/KDE/4.0
Pino Toscano
19 years ago
parent
5b01430bb0
commit
bd294e1de6
6 changed files with 197 additions and 158 deletions
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/***************************************************************************
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* Copyright (C) 2007 by John Layt <john@layt.net> * |
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* * |
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* FilePrinterPreview based on KPrintPreview (originally LGPL) * |
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* Copyright (c) 2007 Alex Merry <huntedhacker@tiscali.co.uk> * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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***************************************************************************/ |
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#include "fileprinterpreview.h" |
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#include <QFile> |
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#include <QSize> |
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#include <QtCore/QFile> |
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#include <QtGui/QLabel> |
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#include <QtGui/QShowEvent> |
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#include <kmimetypetrader.h> |
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#include <kparts/part.h> |
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#include <kpluginfactory.h> |
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#include <kpluginloader.h> |
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#include <kservice.h> |
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#include <kdebug.h> |
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using namespace Okular; |
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// This code copied from KPrintPreview by Alex Merry, adapted to do PS files instead of PDF
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class Okular::FilePrinterPreviewPrivate |
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{ |
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public: |
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FilePrinterPreviewPrivate( FilePrinterPreview *host, const QString & _filename ) |
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: q(host) |
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, mainWidget(new QWidget(host)) |
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, previewPart(0) |
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, failMessage(0) |
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{ |
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filename = _filename; |
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} |
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void getPart(); |
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bool doPreview(); |
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void fail(); |
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FilePrinterPreview *q; |
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QWidget *mainWidget; |
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QString filename; |
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KParts::ReadOnlyPart *previewPart; |
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QWidget *failMessage; |
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}; |
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void FilePrinterPreviewPrivate::getPart() |
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{ |
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if (previewPart) { |
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kDebug(500) << "already got a part"; |
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return; |
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} |
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kDebug(500) << "querying trader for application/ps service"; |
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KPluginFactory *factory(0); |
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KService::List offers = |
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KMimeTypeTrader::self()->query("application/postscript", "KParts/ReadOnlyPart"); |
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KService::List::ConstIterator it = offers.begin(); |
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while (!factory && it != offers.end()) { |
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KPluginLoader loader(**it); |
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factory = loader.factory(); |
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if (!factory) { |
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kDebug(500) << "Loading failed:" << loader.errorString(); |
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} |
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++it; |
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} |
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if (factory) { |
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kDebug(500) << "Trying to create a part"; |
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previewPart = factory->create<KParts::ReadOnlyPart>(q, (QVariantList() << "Print/Preview")); |
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if (!previewPart) { |
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kDebug(500) << "Part creation failed"; |
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} |
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} |
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} |
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bool FilePrinterPreviewPrivate::doPreview() |
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{ |
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if (!QFile::exists(filename)) { |
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kWarning() << "Nothing was produced to be previewed"; |
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return false; |
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} |
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getPart(); |
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if (!previewPart) { |
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//TODO: error dialog
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kWarning() << "Could not find a PS viewer for the preview dialog"; |
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fail(); |
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return false; |
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} else { |
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q->setMainWidget(previewPart->widget()); |
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return previewPart->openUrl(filename); |
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} |
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} |
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void FilePrinterPreviewPrivate::fail() |
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{ |
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if (!failMessage) { |
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failMessage = new QLabel(i18n("Could not load print preview part"), q); |
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} |
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q->setMainWidget(failMessage); |
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} |
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FilePrinterPreview::FilePrinterPreview( const QString &filename, QWidget *parent ) |
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: KDialog( parent ) |
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, d( new FilePrinterPreviewPrivate( this, filename ) ) |
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{ |
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kDebug(500) << "kdeprint: creating preview dialog"; |
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// Set up the dialog
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setCaption(i18n("Print Preview")); |
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setButtons(KDialog::Close); |
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} |
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FilePrinterPreview::~FilePrinterPreview() |
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{ |
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delete d; |
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} |
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void FilePrinterPreview::showEvent(QShowEvent *event) |
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{ |
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if (!event->spontaneous()) { |
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// being shown for the first time
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if (!d->doPreview()) { |
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event->accept(); |
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return; |
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} |
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} |
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KDialog::showEvent(event); |
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} |
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#include "fileprinterpreview.moc" |
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@ -0,0 +1,47 @@ |
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/***************************************************************************
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* Copyright (C) 2007 by John Layt <john@layt.net> * |
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* * |
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* FilePrinterPreview based on KPrintPreview (originally LGPL) * |
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* Copyright (c) 2007 Alex Merry <huntedhacker@tiscali.co.uk> * |
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* * |
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* This program is free software; you can redistribute it and/or modify * |
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* it under the terms of the GNU General Public License as published by * |
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* the Free Software Foundation; either version 2 of the License, or * |
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* (at your option) any later version. * |
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***************************************************************************/ |
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#ifndef FILEPRINTERPREVIEW_H |
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#define FILEPRINTERPREVIEW_H |
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#include <kdialog.h> |
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namespace Okular { |
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// This code copied from KPrintPreview by Alex Merry, adapted to do PS files instead of PDF
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class FilePrinterPreviewPrivate; |
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class FilePrinterPreview : public KDialog |
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{ |
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Q_OBJECT |
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public: |
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/**
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* Create a Print Preview dialog for a given file. |
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* |
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* @param printer file to print preview |
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* @param parent pointer to the parent widget for the dialog |
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*/ |
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explicit FilePrinterPreview( const QString &filename, QWidget *parent = 0 ); |
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virtual ~FilePrinterPreview(); |
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protected: |
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void showEvent( QShowEvent *event ); |
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private: |
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FilePrinterPreviewPrivate * const d; |
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}; |
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} |
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#endif // FILEPRINTER_H
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