From e4dc8d8126b2ff0deefc2a9c33763572db659d0f Mon Sep 17 00:00:00 2001
From: Pino Toscano <pino@kde.org>
Date: Sat, 31 May 2008 21:13:15 +0000
Subject: [PATCH] Load and save in the XML document info all the properties of
 the various View's, that are specific to each document. At the moment, they
 are the zoom mode and level of the page view. BUG: 155752

svn path=/trunk/KDE/kdegraphics/okular/; revision=814998
---
 core/document.cpp | 87 +++++++++++++++++++++++++++++++++++++++++++++++
 core/document_p.h |  2 ++
 2 files changed, 89 insertions(+)

diff --git a/core/document.cpp b/core/document.cpp
index b29f21033..6c93964e9 100644
--- a/core/document.cpp
+++ b/core/document.cpp
@@ -384,6 +384,27 @@ void DocumentPrivate::loadDocumentInfo()
                         setRotationInternal( newrotation, false );
                     }
                 }
+                else if ( infoElement.tagName() == "views" )
+                {
+                    QDomNode viewNode = infoNode.firstChild();
+                    while ( viewNode.isElement() )
+                    {
+                        QDomElement viewElement = viewNode.toElement();
+                        if ( viewElement.tagName() == "view" )
+                        {
+                            const QString viewName = viewElement.attribute( "name" );
+                            Q_FOREACH ( View * view, m_views )
+                            {
+                                if ( view->name() == viewName )
+                                {
+                                    loadViewsInfo( view, viewElement );
+                                    break;
+                                }
+                            }
+                        }
+                        viewNode = viewNode.nextSibling();
+                    }
+                }
                 infoNode = infoNode.nextSibling();
             }
         }
@@ -392,6 +413,62 @@ void DocumentPrivate::loadDocumentInfo()
     } // </documentInfo>
 }
 
+void DocumentPrivate::loadViewsInfo( View *view, const QDomElement &e )
+{
+    QDomNode viewNode = e.firstChild();
+    while ( viewNode.isElement() )
+    {
+        QDomElement viewElement = viewNode.toElement();
+
+        if ( viewElement.tagName() == "zoom" )
+        {
+            const QString valueString = viewElement.attribute( "value" );
+            bool newzoom_ok = true;
+            const double newzoom = !valueString.isEmpty() ? valueString.toDouble( &newzoom_ok ) : 1.0;
+            if ( newzoom_ok && newzoom != 0
+                 && view->supportsCapability( View::Zoom )
+                 && ( view->capabilityFlags( View::Zoom ) & ( View::CapabilityRead & View::CapabilitySerializable ) ) )
+            {
+                view->setCapability( View::Zoom, newzoom );
+            }
+            const QString modeString = viewElement.attribute( "mode" );
+            bool newmode_ok = true;
+            const int newmode = !modeString.isEmpty() ? modeString.toInt( &newmode_ok ) : 2;
+            if ( newmode_ok
+                 && view->supportsCapability( View::ZoomModality )
+                 && ( view->capabilityFlags( View::ZoomModality ) & ( View::CapabilityRead & View::CapabilitySerializable ) ) )
+            {
+                view->setCapability( View::ZoomModality, newmode );
+            }
+        }
+
+        viewNode = viewNode.nextSibling();
+    }
+}
+
+void DocumentPrivate::saveViewsInfo( View *view, QDomElement &e ) const
+{
+    if ( view->supportsCapability( View::Zoom )
+         && ( view->capabilityFlags( View::Zoom ) & ( View::CapabilityRead & View::CapabilitySerializable ) )
+         && view->supportsCapability( View::ZoomModality )
+         && ( view->capabilityFlags( View::ZoomModality ) & ( View::CapabilityRead & View::CapabilitySerializable ) ) )
+    {
+        QDomElement zoomEl = e.ownerDocument().createElement( "zoom" );
+        e.appendChild( zoomEl );
+        bool ok = true;
+        const double zoom = view->capability( View::Zoom ).toDouble( &ok );
+        if ( ok && zoom != 0 )
+        {
+            zoomEl.setAttribute( "value", zoom );
+        }
+        const int mode = view->capability( View::ZoomModality ).toInt( &ok );
+        if ( ok )
+        {
+            zoomEl.setAttribute( "mode", mode );
+        }
+    }
+}
+
 QString DocumentPrivate::giveAbsolutePath( const QString & fileName ) const
 {
     if ( !QDir::isRelativePath( fileName ) )
@@ -562,6 +639,16 @@ void DocumentPrivate::saveDocumentInfo() const
                 ++backIterator;
             }
         }
+        // create views root node
+        QDomElement viewsNode = doc.createElement( "views" );
+        generalInfo.appendChild( viewsNode );
+        Q_FOREACH ( View * view, m_views )
+        {
+            QDomElement viewEntry = doc.createElement( "view" );
+            viewEntry.setAttribute( "name", view->name() );
+            viewsNode.appendChild( viewEntry );
+            saveViewsInfo( view, viewEntry );
+        }
 
         // 3. Save DOM to XML file
         QString xml = doc.toString();
diff --git a/core/document_p.h b/core/document_p.h
index 4f4c9bf21..42350772b 100644
--- a/core/document_p.h
+++ b/core/document_p.h
@@ -93,6 +93,8 @@ class DocumentPrivate
         qulonglong getTotalMemory();
         qulonglong getFreeMemory();
         void loadDocumentInfo();
+        void loadViewsInfo( View *view, const QDomElement &e );
+        void saveViewsInfo( View *view, QDomElement &e ) const;
         QString giveAbsolutePath( const QString & fileName ) const;
         bool openRelativeFile( const QString & fileName );
         Generator * loadGeneratorLibrary( const KService::Ptr &service );