File: wb_component.h

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/* 
 * Copyright (c) 2007, 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 _WB_COMPONENT_H_
#define _WB_COMPONENT_H_

#include "workbench/wb_backend_public_interface.h"
#include "base/trackable.h"
#include "grtpp.h"
#include "grtpp_util.h"
#include "grts/structs.model.h"
#include "base/geometry.h"

namespace bec {
  class GRTManager;
};

namespace mdc {
  class CanvasItem;
};

namespace wb {
  class WBContext;
  struct WBOptions;

  class ModelDiagramForm;

  class WBComponent : public base::trackable
  {
  public:
    WBComponent(WBContext *context);
    virtual ~WBComponent() {};
    
    inline WBContext *get_wb() { return _wb; }
    grt::GRT *get_grt();
    bec::GRTManager *get_grt_manager();

    virtual std::string get_name()= 0;
    virtual std::string get_diagram_class_name() { return ""; }

    virtual void setup_context_grt(grt::GRT *grt, WBOptions *options) {}
    virtual void load_app_options(bool update) {}
    virtual void save_app_options() {}

    virtual void close_document() {}
    virtual void reset_document() {}
    virtual void document_loaded() {}
    virtual void block_model_notifications() {}
    virtual void unblock_model_notifications() {}

    virtual bool handles_figure(const model_ObjectRef &figure)= 0;
    virtual GrtObjectRef get_object_for_figure(const model_ObjectRef &figure) { return GrtObjectRef(); }

    virtual bool can_paste_object(const grt::ObjectRef &object) { return false; }
    virtual model_ObjectRef paste_object(ModelDiagramForm *view, const grt::ObjectRef &object, grt::CopyContext &copy_context) { throw std::logic_error("not implemented"); return model_ObjectRef(); }
    virtual void copy_object_to_clipboard(const grt::ObjectRef &object, grt::CopyContext &copy_context) { throw std::logic_error("not implemented"); }

    // toolbar/menubar handling
    virtual grt::ListRef<app_ShortcutItem> get_shortcut_items() { return grt::ListRef<app_ShortcutItem>(); }
    virtual app_ToolbarRef get_tools_toolbar() { return app_ToolbarRef(); }
    virtual app_ToolbarRef get_tool_options(const std::string &tool)  { return app_ToolbarRef(); }
    
    virtual std::vector<std::string> get_command_dropdown_items(const std::string &option) { return std::vector<std::string>(); }

    virtual std::string get_command_option_value(const std::string &option);
    virtual void set_command_option_value(const std::string &option, const std::string &item);

    virtual std::string get_object_tooltip(const model_ObjectRef &object, mdc::CanvasItem *item) { return ""; }

    // tool handling
    virtual void setup_canvas_tool(ModelDiagramForm *view, const std::string &tool)= 0;

    virtual bool delete_model_object(const model_ObjectRef &object, bool figure_only)= 0;

    // drag& 
    virtual bool accepts_drop(ModelDiagramForm *view, int x, int y, const std::string &type, const std::list<GrtObjectRef> &objects) { return false; }
    virtual bool accepts_drop(ModelDiagramForm *view, int x, int y, const std::string &type, const std::string &text) { return false; }

    virtual bool perform_drop(ModelDiagramForm *view, int x, int y, const std::string &type, const std::list<GrtObjectRef> &objects) { return false; }
    virtual bool perform_drop(ModelDiagramForm *view, int x, int y, const std::string &type, const std::string &text) { return false; }

  protected:
    grt::ValueRef place_object(ModelDiagramForm *view, 
                               const base::Point &pos, const std::string &object_struct,
                               const grt::DictRef &args = grt::DictRef());


  public:
    virtual void activate_canvas_object(const model_ObjectRef &figure, bool newwindow)= 0;

  protected:
    WBContext *_wb;
  };

};

#endif