drawbox.h

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/* 
 * Copyright (c) 2009, 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_DRAWBOX_H_
#define _MFORMS_DRAWBOX_H_

#include <mforms/base.h>
#include <mforms/view.h>
#include <base/geometry.h>

#include "cairo/cairo.h"

namespace mforms 
{
  class DrawBox;
  
#ifndef DOXYGEN_SHOULD_SKIP_THIS
#ifndef SWIG
  struct DrawBoxImplPtrs
  {
    bool (*create)(DrawBox *);
    void (*set_needs_repaint)(DrawBox *);
    void (*set_needs_repaint_area)(DrawBox *, int, int, int, int);//XXX Windows, Linux
    void (*add)(DrawBox *, View *, Alignment alignment);
    void (*remove)(DrawBox *, View *);
    void (*move)(DrawBox *, View *, int x, int y);
  };

  struct MFORMS_EXPORT Accessible
  {
  public:
    enum Role
    {
      None,
      Client,
      Pane,
      Link,
      List,
      ListItem,
      PushButton, 
      StaticText, 
      Text,
      Outline,
      OutlineButton,
      OutlineItem
    };

    virtual ~Accessible() {};

    // This each child class should implement it's own way to get the
    // accessible name and role
    virtual std::string get_acc_name() = 0;
    virtual Role get_acc_role() = 0;

    // The rest of the accessible methods are optional on the child
    // classes, they must implement them as needed
    virtual std::string get_acc_description() { return ""; }
    virtual std::string get_acc_value() { return ""; }

    virtual int get_acc_child_count() { return 0; }
    virtual Accessible* get_acc_child(int index) { return NULL; }

    virtual base::Rect get_acc_bounds() { return base::Rect(); }
    virtual Accessible* hit_test(int x, int y) { return NULL; }

    virtual std::string get_acc_default_action() { return ""; }
    virtual void do_default_action() {};
  };
#endif
#endif
  
  class MFORMS_EXPORT DrawBox : public View, public Accessible
  {
  public:
    DrawBox();

    void add(View *view, Alignment alignment);

    void remove(View *view);

    void move(View *child, int x, int y);
    
    virtual void set_layout_dirty(bool value);
    void set_padding(int left, int top, int right, int bottom);

    void set_needs_repaint();
    void set_needs_repaint_area(int x, int y, int w, int h);
#ifndef DOXYGEN_SHOULD_SKIP_THIS
    virtual void get_layout_size(int* w, int* h);
    
#ifndef SWIG
    virtual void repaint(cairo_t *cr, int x, int y, int w, int h) {}
    virtual void cancel_operation() {};

    virtual std::string get_acc_name() { return get_name(); }
    virtual base::Rect get_acc_bounds(){ return base::Rect(get_x(), get_y(), get_width(), get_height());}
    virtual Role get_acc_role() { return mforms::Accessible::None; }
#endif
#endif
  protected:
    DrawBoxImplPtrs *_drawbox_impl;
  };
};

#endif