/*
Copyright (C) 2001-2006, William Joseph.
All Rights Reserved.

This file is part of GtkRadiant.

GtkRadiant 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; either version 2 of the License, or
(at your option) any later version.

GtkRadiant 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 GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

#if !defined(INCLUDED_TEXTUREENTRY_H)
#define INCLUDED_TEXTUREENTRY_H


#include <gtk/gtkentry.h>
#include <gtk/gtkliststore.h>
#include "gtkutil/idledraw.h"

#include "generic/static.h"
#include "signal/isignal.h"
#include "shaderlib.h"

#include "texwindow.h"

template<typename StringList>
class EntryCompletion
{
  GtkListStore* m_store;
  IdleDraw m_idleUpdate;
public:
  EntryCompletion() : m_store(0), m_idleUpdate(UpdateCaller(*this))
  {
  }

  void connect(GtkEntry* entry)
  {
    if(m_store == 0)
    {
      m_store = gtk_list_store_new(1, G_TYPE_STRING);

      fill();

      StringList().connect(IdleDraw::QueueDrawCaller(m_idleUpdate));
    }

    GtkEntryCompletion* completion = gtk_entry_completion_new();
    gtk_entry_set_completion(entry, completion);
    gtk_entry_completion_set_model(completion, GTK_TREE_MODEL(m_store));
    gtk_entry_completion_set_text_column(completion, 0);
  }

  void append(const char* string)
  {
    GtkTreeIter iter;
    gtk_list_store_append(m_store, &iter);
    gtk_list_store_set(m_store, &iter, 0, string, -1);
  }
  typedef MemberCaller1<EntryCompletion, const char*, &EntryCompletion::append> AppendCaller;

  void fill()
  {
    StringList().forEach(AppendCaller(*this));
  }

  void clear()
  {
    gtk_list_store_clear(m_store);
  }

  void update()
  {
    clear();
    fill();
  }
  typedef MemberCaller<EntryCompletion, &EntryCompletion::update> UpdateCaller;
};

class TextureNameList
{
public:
  void forEach(const ShaderNameCallback& callback) const
  {
    for(QERApp_ActiveShaders_IteratorBegin(); !QERApp_ActiveShaders_IteratorAtEnd(); QERApp_ActiveShaders_IteratorIncrement())
    {
      IShader *shader = QERApp_ActiveShaders_IteratorCurrent();

      if(shader_equal_prefix(shader->getName(), "textures/"))
      {
        callback(shader->getName() + 9);
      }
    }
  }
  void connect(const SignalHandler& update) const
  {
    TextureBrowser_addActiveShadersChangedCallback(update);
  }
};

typedef Static< EntryCompletion<TextureNameList> > GlobalTextureEntryCompletion;


class ShaderList
{
public:
  void forEach(const ShaderNameCallback& callback) const
  {
    GlobalShaderSystem().foreachShaderName(callback);
  }
  void connect(const SignalHandler& update) const
  {
    TextureBrowser_addShadersRealiseCallback(update);
  }
};

typedef Static< EntryCompletion<ShaderList> > GlobalShaderEntryCompletion;


#endif