Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 384 insertions, 0 deletions

diff --git a/kviewshell/kviewshell.cpp b/kviewshell/kviewshell.cpp
new file mode 100644
index 00000000..90e1e474
--- /dev/null
+++ b/kviewshell/kviewshell.cpp
@@ -0,0 +1,384 @@
+/*
+ * Parts of this file are
+ * Copyright 2003 Waldo Bastian <bastian@kde.org>
+ *
+ * These parts are free software; you can redistribute and/or modify
+ * them under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2.
+ */
+
+
+#include <qfileinfo.h>
+#include <qtimer.h>
+#include <qregexp.h>
+
+#include <kiconloader.h>
+#include <kstandarddirs.h>
+#include <kapplication.h>
+#include <kaction.h>
+#include <kconfig.h>
+#include <kdebug.h>
+#include <klocale.h>
+#include <kmessagebox.h>
+#include <kmenubar.h>
+#include <klibloader.h>
+#include <kstdaction.h>
+#include <kedittoolbar.h>
+#include <kurldrag.h>
+#include <kparts/partmanager.h>
+#include <kmimetype.h>
+
+#include <kprogress.h>
+#include <qlabel.h>
+
+#include <stdlib.h>
+#include <unistd.h>
+
+#include "kviewpart_iface.h"
+#include <kstatusbar.h>
+#include <kkeydialog.h>
+#include "kviewshell.moc"
+
+
+#define StatusBar_ID_PageNr 1
+#define StatusBar_ID_PageSize 2
+#define StatusBar_ID_Zoom 3
+
+
+KViewShell::KViewShell(const QString& defaultMimeType)
+  : KParts::MainWindow()
+{
+  // create the viewer part
+
+  // Try to load
+  KLibFactory *factory = KLibLoader::self()->factory("kviewerpart");
+  if (factory) {
+    if (defaultMimeType == QString::null)
+    {
+      view = (KViewPart_Iface*) factory->create(this, "kviewerpart", "KViewPart");
+    }
+    else
+    {
+      QStringList args;
+      args << defaultMimeType;
+      view = (KViewPart_Iface*) factory->create(this, "kviewerpart", "KViewPart", args);
+    }
+    if (!view)
+      ::exit(-1);
+  } else {
+    KMessageBox::error(this, i18n("No viewing component found"));
+    ::exit(-1);
+  }
+
+  setCentralWidget(view->widget());
+
+  // file menu
+  KStdAction::open(view, SLOT(slotFileOpen()), actionCollection());
+  recent = KStdAction::openRecent (this, SLOT(openURL(const KURL &)), actionCollection());
+  reloadAction = new KAction(i18n("Reload"), "reload", CTRL + Key_R, view, SLOT(reload()), actionCollection(), "reload");
+  closeAction = KStdAction::close(this, SLOT(slotFileClose()), actionCollection());
+  KStdAction::quit (this, SLOT(slotQuit()), actionCollection());
+
+  connect(view, SIGNAL(fileOpened()), this, SLOT(addRecentFile()));
+
+  // view menu
+  fullScreenAction = KStdAction::fullScreen(this, SLOT(slotFullScreen()), actionCollection(), this, "fullscreen" );
+
+  // settings menu
+  createStandardStatusBarAction();
+
+  setStandardToolBarMenuEnabled(true);
+
+  KStdAction::keyBindings(this, SLOT(slotConfigureKeys()), actionCollection());
+  KStdAction::configureToolbars(this, SLOT(slotEditToolbar()), actionCollection());
+
+  // statusbar connects
+  connect( view, SIGNAL( zoomChanged(const QString &) ), this,SLOT( slotChangeZoomText(const QString &) ) );
+  connect( view, SIGNAL( pageChanged(const QString &) ), this,SLOT( slotChangePageText(const QString &) ) );
+  connect( view, SIGNAL( sizeChanged(const QString &) ), this,SLOT( slotChangeSizeText(const QString &) ) );
+
+  // Setup session management
+  connect( this, SIGNAL( restoreDocument(const KURL &, int) ), view, SLOT( restoreDocument(const KURL &, int)));
+  connect( this, SIGNAL( saveDocumentRestoreInfo(KConfig*) ), view, SLOT( saveDocumentRestoreInfo(KConfig*)));
+
+  setXMLFile( "kviewshell.rc" );
+  createGUI(view);
+  readSettings();
+  checkActions();
+  setAcceptDrops(true);
+
+  // If kviewshell is started when another instance of kviewshell runs
+  // in fullscreen mode, the menubar is switched off by default, which
+  // is a nasty surprise for the user: there is no way to access the
+  // menus. To avoid such complications, we switch the menubar on
+  // explicitly.
+  menuBar()->show();
+
+  // Add statusbar-widgets for zoom, pagenr and format
+  statusBar()->insertItem("", StatusBar_ID_PageNr, 0, true);
+  statusBar()->insertFixedItem("XXXX%", StatusBar_ID_Zoom, true);
+  statusBar()->changeItem("", StatusBar_ID_Zoom);
+  statusBar()->insertItem(view->pageSizeDescription(), StatusBar_ID_PageSize, 0, true);
+
+  connect( view, SIGNAL(pluginChanged(KParts::Part*)), this, SLOT(createGUI(KParts::Part*)));
+}
+
+
+void KViewShell::checkActions()
+{
+  bool doc = !view->url().isEmpty();
+
+  closeAction->setEnabled(doc);
+  reloadAction->setEnabled(doc);
+  fullScreenAction->setEnabled(doc);
+}
+
+
+KViewShell::~KViewShell()
+{
+  writeSettings();
+  delete view;
+}
+
+
+void KViewShell::slotQuit()
+{
+  // If we are to quit the application while we operate in fullscreen
+  // mode, we need to restore the visibility properties of the
+  // statusbar, toolbar and the menus because these properties are
+  // saved automatically ... and we don't want to start next time
+  // without having menus.
+  if (fullScreenAction->isChecked()) {
+    kdDebug() << "Switching off fullscreen mode before quitting the application" << endl;
+    showNormal();
+    if (isStatusBarShownInNormalMode)
+      statusBar()->show();
+    if (isToolBarShownInNormalMode)
+      toolBar()->show();
+    menuBar()->show();
+    view->slotSetFullPage(false); 
+  }
+  kapp->closeAllWindows();
+  kapp->quit();
+}
+
+
+void KViewShell::readSettings()
+{
+  resize(600, 300); // default size if the config file specifies no size
+  setAutoSaveSettings( "General" ); // apply mainwindow settings (size, toolbars, etc.)
+
+  KConfig *config = kapp->config();
+  config->setGroup("General");
+
+  recent->loadEntries(config, "Recent Files");
+
+  // Constant source of annoyance in KDVI < 1.0: the 'recent-files'
+  // menu contains lots of files which don't exist (any longer). Thus,
+  // we'll sort out the non-existent files here.
+  QStringList items = recent->items();
+  for ( QStringList::Iterator it = items.begin(); it != items.end(); ++it ) {
+    KURL url(*it);
+    if (url.isLocalFile()) {
+      QFileInfo info(url.path());
+      if (!info.exists())
+        recent->removeURL(url);
+    }
+  }
+
+}
+
+
+void KViewShell::writeSettings()
+{
+  KConfig *config = kapp->config();
+  config->setGroup( "General" );
+  recent->saveEntries(config, "Recent Files");
+
+  config->sync();
+}
+
+
+void KViewShell::saveProperties(KConfig* config)
+{
+  // the 'config' object points to the session managed
+  // config file.  anything you write here will be available
+  // later when this app is restored
+  emit saveDocumentRestoreInfo(config);
+}
+
+
+void KViewShell::readProperties(KConfig* config)
+{
+  // the 'config' object points to the session managed
+  // config file.  this function is automatically called whenever
+  // the app is being restored.  read in here whatever you wrote
+  // in 'saveProperties'
+  if (view)
+  {
+    KURL url (config->readPathEntry("URL"));
+    if (url.isValid())
+      emit restoreDocument(url, config->readNumEntry("Page", 1));
+  }
+}
+
+
+void KViewShell::addRecentFile()
+{
+  // Get the URL of the opened file from the kviewpart.
+  KURL actualURL = view->url();
+  // To store the URL in the list of recent files, we remove the
+  // reference part.
+  actualURL.setRef(QString::null);
+  recent->addURL(actualURL);
+  checkActions();
+}
+
+void KViewShell::openURL(const KURL& url)
+{
+  view->openURL(url);
+}
+
+void KViewShell::slotFullScreen()
+{
+  if (fullScreenAction->isChecked()) {
+    // In fullscreen mode, menu- tool- and statusbar are hidden. Save
+    // the visibility flags of these objects here, so that they can
+    // later be properly restored when we switch back to normal mode,
+    // or before we leave the application in slotQuit()
+    isStatusBarShownInNormalMode = statusBar()->isShown();
+    statusBar()->hide();
+    isToolBarShownInNormalMode = toolBar()->isShown();
+    toolBar()->hide();
+    menuBar()->hide();
+    view->slotSetFullPage(true); 
+
+    // Go to fullscreen mode
+    showFullScreen();
+
+    KMessageBox::information(this, i18n("Use the Escape key to leave the fullscreen mode."), i18n("Entering Fullscreen Mode"), "leavingFullScreen");
+  } else {
+    showNormal();
+    if (isStatusBarShownInNormalMode)
+      statusBar()->show();
+    if (isToolBarShownInNormalMode)
+      toolBar()->show();
+    menuBar()->show();
+    view->slotSetFullPage(false); 
+  }
+}
+
+
+void KViewShell::slotFileClose()
+{
+  view->closeURL_ask();
+
+  checkActions();
+}
+
+void KViewShell::slotConfigureKeys()
+{
+  KKeyDialog dlg( true, this );
+
+  dlg.insert( actionCollection() );
+  dlg.insert( view->actionCollection() );
+
+  dlg.configure();
+}
+
+void KViewShell::slotEditToolbar()
+{
+  saveMainWindowSettings( KGlobal::config(), autoSaveGroup() );
+  KEditToolbar dlg(factory());
+  connect( &dlg, SIGNAL( newToolbarConfig() ), SLOT( slotNewToolbarConfig() ) );
+  dlg.exec();
+}
+
+
+void KViewShell::slotNewToolbarConfig()
+{
+  applyMainWindowSettings( KGlobal::config(), autoSaveGroup() );
+}
+
+void KViewShell::dragEnterEvent(QDragEnterEvent *event)
+{
+  if (KURLDrag::canDecode(event))
+  {
+    KURL::List urls;
+    KURLDrag::decode(event, urls);
+    if (!urls.isEmpty())
+    {
+      KURL url = urls.first();
+
+      // Always try to open remote files
+      if (!url.isLocalFile())
+      {
+        event->accept();
+        return;
+      }
+
+      // For local files we only accept a drop, if we have a plugin for its
+      // particular mimetype
+      KMimeType::Ptr mimetype = KMimeType::findByURL(url);
+      kdDebug() << "[dragEnterEvent] Dragged URL is of type " << mimetype->comment() << endl;
+
+      // Safety check
+      if (view)
+      {
+        QStringList mimetypeList = view->supportedMimeTypes();
+        kdDebug() << "[dragEnterEvent] Supported mime types: " << mimetypeList << endl;
+
+        for (QStringList::Iterator it = mimetypeList.begin(); it != mimetypeList.end(); ++it)
+        {
+          if (mimetype->is(*it))
+          {
+            kdDebug() << "[dragEnterEvent] Found matching mimetype: " << *it << endl;
+            event->accept();
+            return;
+          }
+        }
+        kdDebug() << "[dragEnterEvent] no matching mimetype found" << endl;
+      }
+    }
+    event->ignore();
+  }
+}
+
+
+void KViewShell::dropEvent(QDropEvent *event)
+{
+  KURL::List urls;
+  if (KURLDrag::decode(event, urls) && !urls.isEmpty())
+    view->openURL(urls.first());
+}
+
+
+void KViewShell::keyPressEvent(QKeyEvent *event)
+{
+  // The Escape Key is used to return to normal mode from fullscreen
+  // mode
+  if ((event->key() == Qt::Key_Escape) && (fullScreenAction->isChecked())) {
+    showNormal();
+    return;
+  }
+  // If we can't use the key event, pass it on
+  event->ignore();
+}
+
+
+void KViewShell::slotChangePageText(const QString &message)
+{
+  statusBar()->changeItem(" "+message+" ",StatusBar_ID_PageNr);
+}
+
+
+void KViewShell::slotChangeSizeText(const QString &message)
+{
+  statusBar()->changeItem(" "+message+" ",StatusBar_ID_PageSize);
+}
+
+
+void KViewShell::slotChangeZoomText(const QString &message)
+{
+  statusBar()->changeItem(" "+message+" ",StatusBar_ID_Zoom);
+}