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/****************************************************************************
GLUI User Interface Toolkit (LGPL)
---------------------------
glui_checkbox - GLUI_Checkbox control class
--------------------------------------------------
Copyright (c) 1998 Paul Rademacher
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"
/****************************** GLUI_Checkbox::GLUI_Checkbox() **********/
GLUI_Checkbox::GLUI_Checkbox( GLUI_Node *parent,
const char *name, int *value_ptr,
int id,
GLUI_CB cb )
{
common_init();
set_ptr_val( value_ptr );
set_name( name );
user_id = id;
callback = cb;
parent->add_control( this );
init_live();
}
/****************************** GLUI_Checkbox::mouse_down_handler() **********/
int GLUI_Checkbox::mouse_down_handler( int local_x, int local_y )
{
orig_value = int_val;
int_val = !int_val;
currently_inside = true;
redraw();
return false;
}
/****************************** GLUI_Checkbox::mouse_up_handler() **********/
int GLUI_Checkbox::mouse_up_handler( int local_x, int local_y, bool inside )
{
if ( NOT inside ) { /* undo effect on value */
int_val = orig_value;
}
else {
set_int_val( int_val );
/*** Invoke the callback ***/
execute_callback();
}
return false;
}
/****************************** GLUI_Checkbox::mouse_held_down_handler() ******/
int GLUI_Checkbox::mouse_held_down_handler( int local_x, int local_y,
bool inside)
{
/********** Toggle checked and unchecked bitmap if we're entering or
leaving the checkbox area **********/
if ( inside != currently_inside ) {
int_val = !int_val;
currently_inside = inside;
redraw();
}
return false;
}
/****************************** GLUI_Checkbox::key_handler() **********/
int GLUI_Checkbox::key_handler( unsigned char key,int modifiers )
{
return false;
}
/****************************** GLUI_Checkbox::draw() **********/
void GLUI_Checkbox::draw( int x, int y )
{
GLUI_DRAWINGSENTINAL_IDIOM
if ( int_val != 0 ) {
if ( enabled )
glui->std_bitmaps.draw( GLUI_STDBITMAP_CHECKBOX_ON, 0, 0 );
else
glui->std_bitmaps.draw( GLUI_STDBITMAP_CHECKBOX_ON_DIS, 0, 0 );
}
else {
if ( enabled )
glui->std_bitmaps.draw( GLUI_STDBITMAP_CHECKBOX_OFF, 0, 0 );
else
glui->std_bitmaps.draw( GLUI_STDBITMAP_CHECKBOX_OFF_DIS, 0, 0 );
}
draw_active_area();
draw_name( text_x_offset, 10);
}
/**************************** GLUI_Checkbox::draw_active_area() **************/
void GLUI_Checkbox::draw_active_area( void )
{
GLUI_DRAWINGSENTINAL_IDIOM
int text_width, left, right;
text_width = _glutBitmapWidthString( glui->font, name.c_str() );
left = text_x_offset-3;
right = left + 7 + text_width;
if ( active ) {
glEnable( GL_LINE_STIPPLE );
glLineStipple( 1, 0x5555 );
glColor3f( 0., 0., 0. );
} else {
glColor3ub( glui->bkgd_color.r, glui->bkgd_color.g, glui->bkgd_color.b );
}
glBegin( GL_LINE_LOOP );
glVertex2i(left,0); glVertex2i( right,0);
glVertex2i(right,h+1); glVertex2i( left,h+1);
glEnd();
glDisable( GL_LINE_STIPPLE );
}
/************************************ GLUI_Checkbox::update_size() **********/
void GLUI_Checkbox::update_size( void )
{
int text_size;
if ( NOT glui )
return;
text_size = _glutBitmapWidthString( glui->font, name.c_str() );
/* if ( w < text_x_offset + text_size + 6 ) */
w = text_x_offset + text_size + 6 ;
}
/********************************* GLUI_Checkbox::set_int_val() **************/
void GLUI_Checkbox::set_int_val( int new_val )
{
int_val = new_val;
/*** Update the variable we're (possibly) pointing to ***/
output_live(true);
redraw();
}
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