main_window.h

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/*
 * File Name: main_window.h
 */

/*
 * This file is part of liberscribble.
 *
 * liberscribble 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.
 *
 * liberscribble 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, see <http://www.gnu.org/licenses/>.
 */

/**
 * Copyright (C) 2008 iRex Technologies B.V.
 * All rights reserved.
 */
 
#ifndef MAIN_WINDOW_H_
#define MAIN_WINDOW_H_

#include <string>
#include <gtk/gtk.h>

#include "gtk_widget.h"
#include "gtk_source.h"

#include "scribble_manager.h"


namespace test
{

/// The main window
class MainWindow
{
public:
    MainWindow();
    ~MainWindow();

    /// @brief Retrieve Gtk widget directly. It serves as parent widget for all 
    /// sub views.
    inline GtkWidget *get_window() { return main_window; }

    /// Show window or hide the main window.
    void show(bool show = true);

private:

    void create();
    void destroy();

    // update the drawing content
    void update();

    // goto the previous page
    void goto_prev_page();

    // goto the next page
    void goto_next_page();

    void connect_event_handlers(GtkWidget *widget);

    /// Gtk events handler.
    gboolean on_expose(GtkWidget *widget, GdkEvent *event);
    gboolean on_configure(GtkWidget *widget, GdkEvent *event);
    gboolean on_button_press(GtkWidget *widget, GdkEvent *event);
    gboolean on_button_release(GtkWidget *widget, GdkEvent *event);
    gboolean on_motion_notify(GtkWidget *widget, GdkEvent *event);
    gboolean on_key_press(GtkWidget *widget, GdkEvent *event);
    gboolean on_key_release(GtkWidget *widget, GdkEvent *event);
    gboolean on_delete(GtkWidget *widget, GdkEvent *event);

    // draw scribble
    void draw_scribble_page();

    // scribble
    // status: 0, begin; 1, move; 2, end
    void scribble(const ScbPoint &pos, int status);

    // erase
    // status: 0, begin; 1, move; 2, end
    void erase(const ScbPoint &pos, int status);

    // insert a document record into database
    void add_document_to_db();

private:
    GtkWidget *main_window;     ///< The GTK window.
    typedef gtk::GtkEventSource<MainWindow> EventSource;
    EventSource source;         ///< The event source.

    // scribble manager
    ScribbleMgr erscribble_mgr;

    // scribble GC
    ScribbleGC  erscribble_gc;

    // current page id
    ScbPageId   cur_page_id;

    // current page number
    int         page_number;

    // scribble status
    int         erscribble_status;

    // erase status
    int         erase_status;

    // scribble mode
    bool        erscribble_mode;

    // target path
    std::string target_doc_path;
};

}; //namespace test

#endif