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+/***************************************************************************
+ *   Copyright (C) 2006 by Peter Penz <peter.penz@gmx.at>                  *
+ *   Copyright (C) 2006 by Stefan Monov <logixoul@gmail.com>               *
+ *   Copyright (C) 2006 by Cvetoslav Ludmiloff <ludmiloff@gmail.com>       *
+ *                                                                         *
+ *   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; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.             *
+ ***************************************************************************/
+
+#ifndef _DOLPHIN_H_
+#define _DOLPHIN_H_
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <kapplication.h>
+#include <kmainwindow.h>
+#include <qvaluelist.h>
+#include <qptrlist.h>
+#include <qstring.h>
+#include <ksortablevaluelist.h>
+
+#include "dolphinview.h"
+#include "undomanager.h"
+
+class KPrinter;
+class KURL;
+class QLineEdit;
+class KFileIconView;
+class QHBox;
+class QIconViewItem;
+class QSplitter;
+class KAction;
+class URLNavigator;
+class leftSidebar;
+class rightSidebar;
+
+/**
+ * @short Main window for Dolphin.
+ *
+ * Handles the menus, toolbars and Dolphin views.
+ *
+ * @author Peter Penz <peter.penz@gmx.at>
+*/
+class Dolphin : public KMainWindow
+{
+    Q_OBJECT
+
+public:
+    /**
+     * Returns the instance for the Dolphin main window.
+     */
+    // KXMLGUIClient::instance() already in use :-(
+    static Dolphin& mainWin();
+
+    virtual ~Dolphin();
+
+	/**
+     * Activates the given view, which means that
+     * all menu actions are applied to this view. When
+     * having a split view setup the nonactive view
+     * is usually shown in darker colors.
+     */
+    void setActiveView(DolphinView* view);
+
+    /**
+     * Returns the currently active view. See
+     * Dolphin::setActiveView() for more details.
+     */
+    DolphinView* activeView() const { return m_activeView; }
+
+    /**
+     * Handles the dropping of URLs to the given
+     * destination. A context menu with the options
+     * 'Move Here', 'Copy Here', 'Link Here' and
+     * 'Cancel' is offered to the user.
+     * @param urls        List of URLs which have been
+     *                    dropped.
+     * @param destination Destination URL, where the
+     *                    list or URLs should be moved,
+     *                    copied or linked to.
+     */
+    void dropURLs(const KURL::List& urls,
+                  const KURL& destination);
+
+    /**
+     * Returns 'true', if the clipboard contains data
+     * which has been cutted by the Cut action (Ctrl + X).
+     */
+    bool clipboardContainsCutData() const { return m_clipboardContainsCutData; }
+
+    /**
+     * Returns the list of actions which are part of the file group
+     * of the 'Create New...' sub menu. Usually the list contains actions
+     * for creating folders, text files, HTML files etc.
+     */
+    const QPtrList<KAction>& fileGroupActions() const { return m_fileGroupActions; }
+    //const QPtrList<KAction>& linkGroupActions() const { return m_linkGroupActions; }
+    //const QPtrList<KAction>& linkToDeviceActions() const { return m_linkToDeviceActions; }
+
+    /**
+     * Refreshs the views of the main window by recreating them dependent from
+     * the given Dolphin settings.
+     */
+    void refreshViews();
+
+signals:
+    /**
+     * Is send if the active view has been changed in
+     * the split view mode.
+     */
+    void activeViewChanged();
+
+    /**
+     * Is send if the selection of the currently active view has
+     * been changed.
+     */
+    void selectionChanged();
+
+public slots:
+    /**
+     * Updates the state of the 'Back' and 'Forward' menu
+     * actions corresponding the the current history.
+     */
+    void slotHistoryChanged();
+
+    /**
+     * Updates the caption of the main window and the state
+     * of all menu actions which depend from a changed URL.
+     */
+    void slotURLChanged(const KURL& url);
+
+    /**
+     * Go to the given URL.
+     */
+    void slotURLChangeRequest(const KURL& url);
+
+    /** Updates the state of all 'View' menu actions. */
+    void slotViewModeChanged();
+
+    /** Updates the state of the 'Show hidden files' menu action. */
+    void slotShowHiddenFilesChanged();
+
+    /** Updates the state of the 'Show filter bar' menu action. */
+    void slotShowFilterBarChanged();
+
+    /** Updates the state of the 'Sort by' actions. */
+    void slotSortingChanged(DolphinView::Sorting sorting);
+
+    /** Updates the state of the 'Sort Ascending/Descending' action. */
+    void slotSortOrderChanged(Qt::SortOrder order);
+
+    /** Updates the state of the 'Edit' menu actions. */
+    void slotSelectionChanged();
+
+protected:
+    /** @see QMainWindow::closeEvent */
+    virtual void closeEvent(QCloseEvent* event);
+
+    /**
+     * This method is called when it is time for the app to save its
+     * properties for session management purposes.
+     */
+    void saveProperties(KConfig*);
+
+    /**
+     * This method is called when this app is restored.  The KConfig
+     * object points to the session management config file that was saved
+     * with @ref saveProperties
+     */
+    void readProperties(KConfig*);
+
+private slots:
+    /** Opens an input dialog for creating a new folder. */
+    void createFolder();
+
+    /** Creates a file with the MIME type given by the sender. */
+    void createFile();
+
+    /** Renames the selected item of the active view. */
+    void rename();
+
+    /** Moves the selected items of the active view to the trash. */
+    void moveToTrash();
+
+    /** Deletes the selected items of the active view. */
+    void deleteItems();
+
+    /**
+     * Opens the properties window for the selected items of the
+     * active view. The properties windows shows informations
+     * like name, size and permissions.
+     */
+    void properties();
+
+    /** Stores all settings and quits Dolphin. */
+    void quit();
+
+    /**
+     * Shows the error information of the job \a job
+     * in the status bar.
+     */
+    void slotHandleJobError(KIO::Job* job);
+
+    /**
+     * Indicates in the status bar that the delete operation
+     * of the job \a job has been finished.
+     */
+    void slotDeleteFileFinished(KIO::Job* job);
+
+    /**
+     * Updates the state of the 'Undo' menu action dependent
+     * from the parameter \a available.
+     */
+    void slotUndoAvailable(bool available);
+
+    /** Sets the text of the 'Undo' menu action to \a text. */
+    void slotUndoTextChanged(const QString& text);
+
+    /**
+     * Updates the state of the 'Redo' menu action dependent
+     * from the parameter \a available.
+     */
+    void slotRedoAvailable(bool available);
+
+    /** Sets the text of the 'Redo' menu action to \a text. */
+    void slotRedoTextChanged(const QString& text);
+
+    /**
+     * Copies all selected items to the clipboard and marks
+     * the items as cutted.
+     */
+    void cut();
+
+    /** Copies all selected items to the clipboard. */
+    void copy();
+
+    /** Pastes the clipboard data to the active view. */
+    void paste();
+
+    /**
+     * Updates the text of the paste action dependent from
+     * the number of items which are in the clipboard.
+     */
+    void updatePasteAction();
+
+    /** Selects all items from the active view. */
+    void selectAll();
+
+    /**
+     * Inverts the selection of all items of the active view:
+     * Selected items get nonselected and nonselected items get
+     * selected.
+     */
+    void invertSelection();
+
+    /** The current active view is switched to the icons mode. */
+    void setIconsView();
+
+    /** The current active view is switched to the details mode. */
+    void setDetailsView();
+
+    /** The current active view is switched to the previews mode. */
+    void setPreviewsView();
+
+    /** The sorting of the current view should be done by the name. */
+    void sortByName();
+
+    /** The sorting of the current view should be done by the size. */
+    void sortBySize();
+
+    /** The sorting of the current view should be done by the date. */
+    void sortByDate();
+
+    /** Switches between an ascending and descending sorting order. */
+    void toggleSortOrder();
+
+    /**
+     * Switches between one and two views:
+     * If one view is visible, it will get split into two views.
+     * If already two views are visible, the nonactivated view gets closed.
+     */
+    void toggleSplitView();
+
+    /** Reloads the current active view. */
+    void reloadView();
+
+    /** Stops the loading process for the current active view. */
+    void stopLoading();
+
+    /**
+     * Switches between showing and hiding of hidden marked files dependent
+     * from the current state of the 'Show Hidden Files' menu toggle action.
+     */
+    void showHiddenFiles();
+
+    /**
+     * Switches between showing and hiding of the filter bar dependent
+     * from the current state of the 'Show Filter Bar' menu toggle action.
+     */
+    void showFilterBar();
+
+    /** Increases the size of the current set view mode. */
+    void zoomIn();
+
+    /** Decreases the size of the current set view mode. */
+    void zoomOut();
+
+    /**
+     * Switches to the edit mode of the navigation bar. If the edit mode is
+     * already active, it is assured that the navigation bar get focused.
+     */
+    void editLocation();
+
+    /** Switches to the browse mode of the navigation bar. */
+    void browse();
+
+    /**
+     * Opens the view properties dialog, which allows to modify the properties
+     * of the currently active view.
+     */
+    void adjustViewProperties();
+
+    /** Goes back on step of the URL history. */
+    void goBack();
+
+    /** Goes forward one step of the URL history. */
+    void goForward();
+
+    /** Goes up one hierarchy of the current URL. */
+    void goUp();
+
+    /** Goes to the home URL. */
+    void goHome();
+
+    /** Opens a terminal for the current shown directory. */
+    void openTerminal();
+
+    /** Opens KFind for the current shown directory. */
+    void findFile();
+
+    /** Opens Kompare for 2 selected files. */
+    void compareFiles();
+
+    /** Opens the settings dialog for Dolphin. */
+    void editSettings();
+
+    /**
+     * Adds the undo operation given by \a job
+     * to the UndoManager.
+     */
+    void addUndoOperation(KIO::Job* job);
+
+
+    void toggleleftSidebar();
+    void togglerightSidebar();
+
+    /**
+     * Stores the current sidebar width and closes
+     * the sidebar.
+     */
+    void closeleftSidebar();
+    void closerightSidebar();
+
+private:
+    Dolphin();
+    void init();
+    void loadSettings();
+
+    void setupAccel();
+    void setupActions();
+    void setupCreateNewMenuActions();
+    void updateHistory();
+    void updateEditActions();
+    void updateViewActions();
+    void updateGoActions();
+    void updateViewProperties(const KURL::List& urls);
+    void copyURLs(const KURL::List& source, const KURL& dest);
+    void moveURLs(const KURL::List& source, const KURL& dest);
+    void addPendingUndoJob(KIO::Job* job,
+                           DolphinCommand::Type commandType,
+                           const KURL::List& source,
+                           const KURL& dest);
+    void clearStatusBar();
+    void openleftSidebar();
+    void openrightSidebar();
+
+    QSplitter* m_splitter;
+	leftSidebar* m_leftsidebar;
+	rightSidebar* m_rightsidebar;
+    DolphinView* m_activeView;
+
+    /**
+     * Dolphin supports only one or two views, which
+     * are handled internally as primary and secondary view.
+     */
+    enum ViewIndex
+    {
+        PrimaryIdx = 0,
+        SecondaryIdx = 1
+    };
+    DolphinView* m_view[SecondaryIdx + 1];
+
+    /// If set to true, the clipboard contains data which should be cutted after pasting.
+    bool m_clipboardContainsCutData;
+
+    /**
+     * Asynchronous operations like 'Move' and 'Copy' may only be added as undo
+     * operation after they have been finished successfully. When an asynchronous
+     * operation is started, it is added to a pending undo jobs list in the meantime.
+     * As soon as the job has been finished, the operation is added to the undo mangager.
+     * @see UndoManager
+     * @see Dolphin::addPendingUndoJob
+     * @see Dolphin::addUndoOperation
+     */
+    struct UndoInfo
+    {
+        int id;
+        DolphinCommand command;
+    };
+    QValueList<UndoInfo> m_pendingUndoJobs;
+
+    /** Contains meta information for creating files. */
+    struct CreateFileEntry
+    {
+        QString name;
+        QString filePath;
+        QString templatePath;
+        QString icon;
+        QString comment;
+    };
+
+    QPtrList<KAction> m_fileGroupActions;
+    KSortableValueList<CreateFileEntry,QString> m_createFileTemplates;
+
+    // TODO: not used yet. See documentation of Dolphin::linkGroupActions()
+    // and Dolphin::linkToDeviceActions() in for details.
+    //QPtrList<KAction> m_linkGroupActions;
+    //QPtrList<KAction> m_linkToDeviceActions;
+};
+
+#endif // _DOLPHIN_H_
+