From 7ed5ae7867de42cc29233cbe84ddd65115ca3602 Mon Sep 17 00:00:00 2001
From: Albert Astals Cid <tsdgeos@terra.es>
Date: Sat, 2 Jul 2005 19:32:08 +0000
Subject: [PATCH] Open PS files, NOOOOO, we have not coded generator_ps, we
 just use ps2pdf (if installed) and open the resulting file, results are quite
 acceptable in the few ps i've tried. Testing and feedback are welcome.

svn path=/trunk/KDE/kdegraphics/kpdf/; revision=430941
---
 part.cpp        | 47 ++++++++++++++++++++++++++++++++++++++++++++++-
 part.h          |  2 ++
 shell/shell.cpp |  2 +-
 3 files changed, 49 insertions(+), 2 deletions(-)

diff --git a/part.cpp b/part.cpp
index ee4a7e87d..3fb44cb1e 100644
--- a/part.cpp
+++ b/part.cpp
@@ -47,9 +47,12 @@
 #include <kiconloader.h>
 #include <kio/netaccess.h>
 #include <kpopupmenu.h>
+#include <kprocess.h>
+#include <kstandarddirs.h>
+#include <ktempfile.h>
+#include <ktrader.h>
 #include <kxmlguiclient.h>
 #include <kxmlguifactory.h>
-#include <ktrader.h>
 
 // local includes
 #include "xpdf/GlobalParams.h"
@@ -332,6 +335,36 @@ KAboutData* Part::createAboutData()
 
 bool Part::openFile()
 {
+    KMimeType::Ptr mime = KMimeType::findByPath( m_file );
+    if ( (*mime).is( "application/postscript" ) )
+    {
+        QString app = KStandardDirs::findExe( "ps2pdf" );
+        if ( !app.isNull() )
+        {
+            KTempFile tf( QString::null, ".pdf" );
+            if ( tf.status() == 0 )
+            {
+                tf.close();
+                m_temporaryLocalFile = tf.name();
+
+                KProcess *p = new KProcess;
+                *p << app;
+                *p << m_file << m_temporaryLocalFile;
+                m_pageView->showText(i18n("Transforming from ps to pdf..."), 0);
+                connect(p, SIGNAL(processExited(KProcess *)), this, SLOT(psTransformEnded()));
+                p -> start();
+                return true;
+            }
+        }
+        else
+        {
+            KMessageBox::error(widget(), i18n("You don't have ps2pdf installed so kpdf can not open postscript files."));
+            return false;
+        }
+    }
+
+    m_temporaryLocalFile = QString::null;
+
     bool ok = m_document->openDocument( m_file, url() );
 
     // update one-time actions
@@ -386,6 +419,12 @@ bool Part::openURL(const KURL &url)
 
 bool Part::closeURL()
 {
+    if (!m_temporaryLocalFile.isNull())
+    {
+        QFile::remove( m_temporaryLocalFile );
+        m_temporaryLocalFile = QString::null;
+    }
+
     m_find->setEnabled( false );
     m_findNext->setEnabled( false );
     m_saveAs->setEnabled( false );
@@ -476,6 +515,12 @@ void Part::enableTOC(bool enable)
 	m_toolBox->setItemEnabled(0, enable);
 }
 
+void Part::psTransformEnded()
+{
+	m_file = m_temporaryLocalFile;
+	openFile();
+}
+
 //BEGIN go to page dialog
 class KPDFGotoPageDialog : public KDialogBase
 {
diff --git a/part.h b/part.h
index e8cf9b4f3..0d914e3b5 100644
--- a/part.h
+++ b/part.h
@@ -106,6 +106,7 @@ protected slots:
 	// can be connected to widget elements
 	void updateViewActions();
 	void enableTOC(bool enable);
+	void psTransformEnded();
 
 public slots:
 	// connected to Shell action (and browserExtension), not local one
@@ -120,6 +121,7 @@ private:
 
 	// the document
 	KPDFDocument * m_document;
+	QString m_temporaryLocalFile;
 
 	// main widgets
 	QSplitter *m_splitter;
diff --git a/shell/shell.cpp b/shell/shell.cpp
index 7398e7057..8104ffc4e 100644
--- a/shell/shell.cpp
+++ b/shell/shell.cpp
@@ -210,7 +210,7 @@ Shell::fileOpen()
   // this slot is called whenever the File->Open menu is selected,
   // the Open shortcut is pressed (usually CTRL+O) or the Open toolbar
   // button is clicked
-    KURL url = KFileDialog::getOpenURL( QString::null, "application/pdf" );//getOpenFileName();
+    KURL url = KFileDialog::getOpenURL( QString::null, "application/pdf application/postscript" );//getOpenFileName();
 
   if (!url.isEmpty())
     openURL(url);