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/***************************************************************************
viewmanager - description
begin : Fri Mar 26 2004
copyright : (C) 2004 by Andras Mantia <amantia@kde.org>
***************************************************************************/
/***************************************************************************
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
***************************************************************************/
#ifndef VIEWMANAGER_H
#define VIEWMANAGER_H
#include <kurl.h>
//forward declarations
class Document;
class QuantaView;
class QuantaBookmarks;
class KafkaDocument;
class KPopupMenu;
class KMdiChildView;
/** This singleton class takes care of creating new views for documents, help, plugins, preview and so.
* As the name says, it also manages the views. */
class ViewManager : public QObject
{
Q_OBJECT
public:
/** Returns a reference to the viewmanager object */
static ViewManager* const ref(QObject *parent = 0L, const char *name = 0L)
{
static ViewManager *m_ref;
if (!m_ref) m_ref = new ViewManager(parent, name);
return m_ref;
}
/** The destructor. */
virtual ~ViewManager(){};
/** Creates a QuantaView object */
QuantaView *createView(const QString &caption = QString::null);
/** Removes a QuantaView object. Returns false on failure (eg. the view was not saved and it refused
the delete itself.) If force is true, the view is removed without asking for save.
*/
bool removeView(QuantaView *view, bool force = false, bool createNew = true);
/** Returns the active view */
QuantaView *activeView();
/** Returns the active document or 0L */
Document *activeDocument();
/** Returns the view holding the document loaded from url. */
QuantaView *isOpened(const KURL &url);
bool saveAll();
/** Returns true if at least one view has the modified flag set. */
bool isOneModified();
void createNewDocument();
/** Returns a list with the URLs of the opened documents */
KURL::List openedFiles(bool noUntitled=true);
/** Returns a list with the Document* object of the opened documents */
QValueList<Document*> openedDocuments();
/** Returns the view holding the documentation widget. If create is true and there is no such view yet,
it creates one. */
QuantaView *documentationView(bool create = true);
/** Returns the last active view which had an editor inside or 0 if there was no such view */
QuantaView *lastActiveEditorView() {return m_lastActiveEditorView;}
/** Return the URL of the currently active document */
QString currentURL();
public slots:
/**called when a new view was activated */
void slotViewActivated(KMdiChildView *view);
/** Removes the active view Returns false on failure (eg. the view was not saved and it refused the delete itself.) */
bool removeActiveView(bool createNew = true) { return removeView(activeView(), false, createNew); }
/** closes all the other but active tabs */
void slotCloseOtherTabs();
/** closes all views. If createNew is true, it creates a new view after closing the others. Return true if all documents were closed.*/
bool closeAll(bool createNew = true);
/** called when the last view is closed */
void slotLastViewClosed();
/** called when the context menu was invoked on a tab */
void slotTabContextMenu(QWidget *widget, const QPoint & point);
/** called when the user requests to close a tab with the close button */
void slotCloseRequest(KMdiChildView *widget);
/** called from the views and just emits the signal @ref documentClosed */
void slotDocumentClosed(const KURL&);
signals:
/** emitted when a file from the template view is dropped on a view */
void dragInsert(QDropEvent *);
/** emitted when a view was activated */
void viewActivated(const KURL &);
/** emitted when a view was closed */
void documentClosed(const KURL&);
void eventHappened(const QString&, const QString&, const QString& );
/** emitted when all files were closed. The argument is true if the closes
was successful, false if the unser canceled the closing */
void filesClosed(bool);
private slots:
/** called before the file list menu shows up, so it can be updated */
void slotFileListPopupAboutToShow();
/** called when an item is selected in the file list menu */
void slotFileListPopupItemActivated(int id);
/** Handle tab context menus for editor views */
void slotReloadFile();
void slotUploadFile();
void slotDeleteFile();
void slotCloseView();
private:
/** Private constructor for the singleton object. */
ViewManager(QObject * parent = 0, const char * name = 0);
/** Returns true if there isn't any opened view holding an editor */
bool allEditorsClosed();
QuantaView *m_lastActiveView; ///< Holds the last active view. Used to deactivate it when a new view is selected
QuantaView *m_lastActiveEditorView; ///< Contains the last active view which has an editor inside
QuantaView *m_documentationView; ///< Contains the view which holds the documentation browser
KPopupMenu *m_tabPopup; ///< the menu which pops up when the user clicks on a view tab
KPopupMenu *m_fileListPopup; ///< a menu containing the opened views as menu items
KPopupMenu *m_bookmarksMenu;
QuantaBookmarks *m_bookmarks;
QuantaView *m_contextView; ///<the tab where the context menu was requested
bool m_separatorVisible;
int m_cvsMenuId;
int m_bookmarksMenuId;
};
#endif
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