simulator/draw.h (5c70d9d) - libetherpix · BlinkenArea

draw.h

/*
 * EtherPix simulator
 *
 * Copyright 2017 Stefan Schuermans <stefan schuermans info>
 *
 * 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 3 of the License.
 *
 *
 * 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 Lesser General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef DRAW_H
#define DRAW_H

#include <gtkmm.h>

#include "config.h"

/// drawing area
class Draw: public Gtk::DrawingArea
{
public:
  /**
   * @brief constructor
   * @param[in] Gtk Window object (a C object)
   * @param[in] builder reference to GTK builder object
   */
  Draw(BaseObjectType *cobject,
       const Glib::RefPtr<Gtk::Builder> &builder);

/// virtual destructor
  virtual ~Draw();

/// set configuration object
  void setConfig(Config const&config);

/// request image update
  void reqUpdate();

protected:
  /**
   * @brief widget is (re)configured
   * @param[in] cfg configuration event
   * @return if callback was completely handled
   */
  virtual bool on_configure_event(GdkEventConfigure *cfg);

/**
   * @brief widget is being drawn
   * @param[in] cairo cairo context for drawing
   * @return if callback was completely handled
   */
  virtual bool on_draw(const Cairo::RefPtr<Cairo::Context> &cairo);

/// update image
  void updateImage();

protected:
  /// reference to GTK builder object
  Glib::RefPtr<Gtk::Builder> m_builder;

/// cairo surface with current simulator image
  Cairo::RefPtr<Cairo::ImageSurface> m_image;

/// configuration object
  Config const *m_config;
};

#endif // #ifndef DRAW_H

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