dock_navigator.h

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/* === S Y N F I G ========================================================= */
/* ========================================================================= */

/* === S T A R T =========================================================== */

#ifndef __SYNFIG_DOCK_NAVIGATOR_H
#define __SYNFIG_DOCK_NAVIGATOR_H

/* === H E A D E R S ======================================================= */
#include "sigc++/signal.h"

#include <gtkmm/drawingarea.h>
#include <gdkmm/pixbuf.h>
#include <gtkmm/adjustment.h>
#include <gtkmm/label.h>

#include <synfig/renddesc.h>

#include "canvasview.h"
#include "docks/dock_canvasspecific.h"
#include "widgets/widget_distance.h"

#include <ETL/smart_ptr>

/* === M A C R O S ========================================================= */

/* === T Y P E D E F S ===================================================== */

/* === C L A S S E S & S T R U C T S ======================================= */

namespace studio {
class AsyncRenderer;

class Widget_NavView : public Gtk::Table
{
    //handle to out parent canvas
    CanvasView::LooseHandle canvview;

    Glib::RefPtr<Gdk::Pixbuf> prev;
    bool dirty;

    //The drawing stuff
    Gtk::DrawingArea drawto;

    //The input stuff
    Glib::RefPtr<Gtk::Adjustment> adj_zoom;
    Gtk::Label zoom_print;

    //zoom window stuff
    bool    scrolling;

    //asynchronous rendering stuff
    etl::handle<AsyncRenderer>  renderer;
    etl::smart_ptr<synfig::Surface> surface;
    cairo_surface_t* cairo_surface;
    bool rendering;

    //drawing functionality
    void on_start_render(); //breaks out into asynchronous rendering
    void on_finish_render();
    void on_draw(); //renders the small thing we have
    void on_dirty_preview(); //dirties the preview for rerender

    //for the zoom buttons
    void on_zoom_in();
    void on_zoom_out();

    //handles the zoom scroller
    using Gtk::Widget::on_scroll_event;
    bool on_scroll_event(GdkEvent *event);
    void on_number_modify();

    //
    bool on_mouse_event(GdkEvent * e);

    //draws the gotten bitmap on the draw area
    bool on_drawto_draw(const Cairo::RefPtr<Cairo::Context> &cr);

    //for when the canvasview view changes (boolean value scrolling solves cyclic problems)
    void on_workarea_view_change();

public:
    Widget_NavView(CanvasView::LooseHandle cv = CanvasView::LooseHandle());
    ~Widget_NavView();

    etl::loose_handle<studio::CanvasView> get_canvas_view() {return canvview;}
};

class Dock_Navigator : public Dock_CanvasSpecific
{
    Widget_NavView  dummy;

public:
    Dock_Navigator();
    ~Dock_Navigator();

    virtual void changed_canvas_view_vfunc(etl::loose_handle<CanvasView> canvas_view);
};

}; // END of namespace studio

/* === E N D =============================================================== */

#endif