/* 
 * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
 *
 * 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.
 * 
 * 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 St, Fifth Floor, Boston, MA
 * 02110-1301  USA
 */
#ifndef _MFORMS_PANEL_H_
#define _MFORMS_PANEL_H_

#include <mforms/container.h>


namespace mforms {
  enum PanelType {
    // TODO: re-arrange names so that the all begin with Panel.., as this sorts much better
    //       in lists etc.
    TransparentPanel,  // just a container with no background
    FilledPanel,        // just a container with color filled background
    BorderedPanel,      // container with native border
    LineBorderPanel,    // container with a solid line border
    TitledBoxPanel,     // native grouping box with a title with border
    TitledGroupPanel,   // native grouping container with a title (may have no border) 
    CheckBoxTitlePanel, // container with 
    FilledHeaderPanel,  // Just like a filled panel but additionally has a header bar with a title.
    StyledHeaderPanel   // Panel which has top round corners for win, rect + gradient fill for osx, plain filled rect for linux
  };

  class Panel;

#ifndef DOXYGEN_SHOULD_SKIP_THIS
#ifndef SWIG
  struct MFORMS_EXPORT PanelImplPtrs
  {
    bool (__stdcall *create)(Panel*, PanelType type);
    void (__stdcall *set_back_color)(Panel*, const std::string &);
    void (__stdcall *set_title)(Panel*, const std::string&);

    void (__stdcall *set_active)(Panel*, bool);
    bool (__stdcall *get_active)(Panel*);

    void (__stdcall *add)(Panel *self,View*);
    void (__stdcall *remove)(Panel *self,View*);
  };
#endif
#endif

  /** A generic single item container with optional border. */
  class MFORMS_EXPORT Panel : public Container
  {
  public:
    /** Constructor.
     
     Type of panel:
     TransparentPanel    just a container with no background
     FilledPanel         just a container with color filled background
     BorderedPanel       container with native border
     LineBorderPanel     container with a solid line border
     TitledBoxPanel      native grouping box with a title with border
     TitledGroupPanel    native grouping container with a title (may have no border) 
     CheckBoxTitlePanel  container with checkbox
     */     
    Panel(PanelType type);

    /** Sets title of panel, if supported. */
    void set_title(const std::string &title);
    /** Sets background color of panel, if supported. */
    virtual void set_back_color(const std::string &color);

    /** Sets state of the panel checkbox, if supported. */
    void set_active(bool);
    /** Gets state of panel checkbox, if supported. */
    bool get_active();
    
    /** Sets the content of the panel. */
    void add(View *subview);
    /** Removes the content view of the panel. */
    virtual void remove(View *subview);

#ifndef SWIG
    /** Signal emitted when checkbox is toggled for CheckBoxTitlePanel */
    boost::signals2::signal<void ()>* signal_toggled() { return &_signal_toggled; }    
#ifndef DOXYGEN_SHOULD_SKIP_THIS  
    void check_toggled();
#endif
#endif
  protected:
    boost::signals2::signal<void ()> _signal_toggled;
    PanelImplPtrs *_panel_impl;
  };
};

#endif
