path: root/tests/bullet/Extras/glui/glui_textbox.cpp

/****************************************************************************
  
  GLUI User Interface Toolkit
  ---------------------------

     glui_textbox.cpp - GLUI_TextBox control class


          --------------------------------------------------

  Copyright (c) 1998 Paul Rademacher, 2004 John Kew

  WWW:    http://sourceforge.net/projects/glui/
  Forums: http://sourceforge.net/forum/?group_id=92496

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library 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
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

*****************************************************************************/

#include "glui_internal_control.h"
#include <cmath>


static const int LINE_HEIGHT = 15;

/****************************** GLUI_TextBox::GLUI_TextBox() **********/

GLUI_TextBox::GLUI_TextBox(GLUI_Node *parent, GLUI_String &live_var,
                           bool scroll, int id, GLUI_CB callback )
{
  common_construct(parent, &live_var, scroll, id, callback);
}

/****************************** GLUI_TextBox::GLUI_TextBox() **********/

GLUI_TextBox::GLUI_TextBox( GLUI_Node *parent, bool scroll, int id,
                            GLUI_CB callback )
{
  common_construct(parent, NULL, scroll, id, callback);
}

/****************************** GLUI_TextBox::common_construct() **********/
void GLUI_TextBox::common_construct(
  GLUI_Node *parent, GLUI_String *data, 
  bool scroll, int id, GLUI_CB callback)
{
  common_init();

  GLUI_Node *tb_panel = parent;

  if (scroll) {
    GLUI_Panel *p = new GLUI_Panel(parent,"",GLUI_PANEL_NONE);
    p->x_off = 1;
    tb_panel = p;
  }
  this->ptr_val     = data;
  if (data) {
    this->live_type = GLUI_LIVE_STRING;
  } else {
    this->live_type = GLUI_LIVE_NONE;
  }
  this->user_id     = id;
  this->callback    = callback;
  this->name        = "textbox";
  tb_panel->add_control( this );
  if (scroll) {
    new GLUI_Column(tb_panel, false);
    scrollbar = 
      new GLUI_Scrollbar(tb_panel,
                         "scrollbar",
                         GLUI_SCROLL_VERTICAL,
                         GLUI_SCROLL_INT);
    scrollbar->set_object_callback(GLUI_TextBox::scrollbar_callback, this);
    scrollbar->set_alignment(GLUI_ALIGN_LEFT);
    // scrollbar->can_activate = false; //kills ability to mouse drag too
  }
  init_live();
}

/****************************** GLUI_TextBox::mouse_down_handler() **********/

int    GLUI_TextBox::mouse_down_handler( int local_x, int local_y )
{
  int tmp_insertion_pt;

  if ( debug )    dump( stdout, "-> MOUSE DOWN" );

  tmp_insertion_pt = find_insertion_pt( local_x, local_y );  
  if ( tmp_insertion_pt == -1 ) {
    if ( glui )
      glui->deactivate_current_control(  );
    return false;
  }

  insertion_pt = tmp_insertion_pt;

  sel_start = sel_end = insertion_pt;
 
  keygoal_x = insert_x;

  if ( can_draw())
    update_and_draw_text();

  if ( debug )    dump( stdout, "<- MOUSE UP" );

  return true;
}


/******************************** GLUI_TextBox::mouse_up_handler() **********/

int    GLUI_TextBox::mouse_up_handler( int local_x, int local_y, bool inside )
{
  return false;
}


/***************************** GLUI_TextBox::mouse_held_down_handler() ******/

int    GLUI_TextBox::mouse_held_down_handler( int local_x, int local_y,
                           bool new_inside)
{
  int tmp_pt;

  if ( NOT new_inside )     return false;

  if ( debug )    dump( stdout, "-> HELD DOWN" );
  
  tmp_pt = find_insertion_pt( local_x, local_y );
  keygoal_x = insert_x;
  
  if ( tmp_pt == -1 AND sel_end !=