341 lines
7.5 KiB
C++
341 lines
7.5 KiB
C++
/****************************************************************************
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GLUI User Interface Toolkit
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---------------------------
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glui_radio.cpp - GLUI_RadioGroup and GLUI_RadioButton control classes
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--------------------------------------------------
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Copyright (c) 1998 Paul Rademacher
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This program is freely distributable without licensing fees and is
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provided without guarantee or warrantee expressed or implied. This
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program is -not- in the public domain.
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*****************************************************************************/
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#include "glui.h"
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#include "stdinc.h"
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/****************************** GLUI_RadioGroup::draw() **********/
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void GLUI_RadioGroup::draw( int x, int y )
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{
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if ( NOT can_draw() )
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return;
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draw_group(false);
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}
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/********************* GLUI_RadioGroup::draw_group(int translate) **********/
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void GLUI_RadioGroup::draw_group( int translate )
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{
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GLUI_RadioButton *button;
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int state = 0, orig;
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if ( NOT can_draw() )
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return;
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orig = set_to_glut_window();
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if ( translate )
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state = glui->set_front_draw_buffer();
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this->int_val = int_val;
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glMatrixMode(GL_MODELVIEW );
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button = (GLUI_RadioButton*) first_child();
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while( button != NULL ) {
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if ( translate ) {
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glPushMatrix();
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button->translate_to_origin();
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}
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if ( button->int_val )
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button->draw_checked();
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else
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button->draw_unchecked();
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if ( translate )
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glPopMatrix();
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button = (GLUI_RadioButton*) button->next();
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}
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if ( translate )
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glui->restore_draw_buffer(state);
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restore_window(orig);
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}
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/****************************** GLUI_RadioGroup::set_name() **********/
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void GLUI_RadioGroup::set_name( char *text )
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{
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strncpy(name,text,sizeof(GLUI_String));
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if ( glui )
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glui->refresh();
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}
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/********************************* GLUI_RadioGroup::set_selected() **********/
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void GLUI_RadioGroup::set_selected( int int_val )
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{
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GLUI_RadioButton *button;
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this->int_val = int_val;
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button = (GLUI_RadioButton*) first_child();
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while( button != NULL ) {
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if ( int_val == -1 ) { /*** All buttons in group are deselected ***/
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button->set_int_val(0);
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}
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else if ( int_val == button->user_id ) { /*** This is selected button ***/
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button->set_int_val(1);
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}
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else { /*** This is NOT selected button ***/
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button->set_int_val(0);
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}
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button = (GLUI_RadioButton*) button->next();
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}
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}
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/************************ GLUI_RadioButton::mouse_down_handler() **********/
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int GLUI_RadioButton::mouse_down_handler( int local_x, int local_y )
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{
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if ( NOT group )
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return false;
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orig_value = group->int_val;
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currently_inside = true;
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group->set_selected( this->user_id );
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group->draw_group( true );
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return false;
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}
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/*************************** GLUI_RadioButton::mouse_up_handler() **********/
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int GLUI_RadioButton::mouse_up_handler( int local_x, int local_y,
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int inside )
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{
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if ( NOT group )
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return false;
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if ( NOT inside ) {
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group->set_selected( orig_value );
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group->draw_group( true );
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}
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else {
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/** Now we update the radio button group. We tell the group
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handler to set the currently-selected item to this button, which
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is reference by its user_id/ordinal number within group **/
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group->set_selected( this->user_id );
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group->draw_group( true );
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/*** Now update the linked variable, and call the callback,
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but ONLY if the value of the radio group actually changed ***/
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if ( group->int_val != orig_value ) {
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group->output_live(true); /** Output live and update gfx ***/
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group->execute_callback();
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}
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}
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return false;
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}
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/********************** GLUI_RadioButton::mouse_held_down_handler() ******/
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int GLUI_RadioButton::mouse_held_down_handler( int local_x, int local_y,
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int inside)
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{
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if ( NOT inside AND currently_inside == true ) {
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group->set_selected( orig_value );
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group->draw_group( true );
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}
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else if ( inside AND currently_inside == false ) {
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group->set_selected( this->user_id );
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group->draw_group( true );
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}
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currently_inside = inside;
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return false;
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}
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/****************************** GLUI_RadioButton::draw() **********/
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void GLUI_RadioButton::draw( int x, int y )
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{
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int orig;
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orig = set_to_glut_window();
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if ( NOT group OR NOT can_draw() )
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return;
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/*** See if we're the currently-selected button. If so, draw ***/
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if ( group->int_val == this->user_id ) {
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if ( enabled )
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glui->std_bitmaps.draw( GLUI_STDBITMAP_RADIOBUTTON_ON, 0, 0 );
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else
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glui->std_bitmaps.draw( GLUI_STDBITMAP_RADIOBUTTON_ON_DIS, 0, 0 );
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}
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else {
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if ( enabled )
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glui->std_bitmaps.draw( GLUI_STDBITMAP_RADIOBUTTON_OFF, 0, 0 );
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else
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glui->std_bitmaps.draw( GLUI_STDBITMAP_RADIOBUTTON_OFF_DIS, 0, 0 );
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}
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draw_active_area();
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draw_name( text_x_offset, 10 );
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restore_window(orig);
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}
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/************************************ GLUI_RadioButton::draw_checked() ******/
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void GLUI_RadioButton::draw_checked( void )
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{
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int orig;
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if ( NOT can_draw() )
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return;
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orig = set_to_glut_window();
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if ( enabled )
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glui->std_bitmaps.draw( GLUI_STDBITMAP_RADIOBUTTON_ON, 0, 0 );
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else
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glui->std_bitmaps.draw( GLUI_STDBITMAP_RADIOBUTTON_ON_DIS, 0, 0 );
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draw_active_area();
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restore_window(orig);
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}
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/*********************************** GLUI_RadioButton::draw_unchecked() ******/
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void GLUI_RadioButton::draw_unchecked( void )
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{
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int orig;
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if ( NOT can_draw() )
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return;
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orig = set_to_glut_window();
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if ( enabled )
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glui->std_bitmaps.draw( GLUI_STDBITMAP_RADIOBUTTON_OFF, 0, 0 );
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else
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glui->std_bitmaps.draw( GLUI_STDBITMAP_RADIOBUTTON_OFF_DIS, 0, 0 );
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draw_active_area();
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restore_window(orig);
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}
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/**************************************** GLUI_RadioButton::draw_O() ********/
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void GLUI_RadioButton::draw_O( void )
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{
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int i, j, orig;
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if ( NOT can_draw() )
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return;
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orig = set_to_glut_window();
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glBegin( GL_POINTS );
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for(i=3; i<=GLUI_RADIOBUTTON_SIZE-3; i++ )
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for(j=3; j<=GLUI_RADIOBUTTON_SIZE-3; j++ )
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glVertex2i(i,j);
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glEnd();
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restore_window(orig);
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}
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/******************************** GLUI_RadioButton::update_size() **********/
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void GLUI_RadioButton::update_size( void )
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{
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int text_size;
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if ( NOT glui )
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return;
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text_size = _glutBitmapWidthString( glui->font, name );
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/* if ( w < text_x_offset + text_size + 6 ) */
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w = text_x_offset + text_size + 6 ;
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}
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/************************* GLUI_RadioButton::draw_active_area() **************/
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void GLUI_RadioButton::draw_active_area( void )
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{
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int text_width, left, right, orig;
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if ( NOT can_draw() )
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return;
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orig = set_to_glut_window();
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text_width = _glutBitmapWidthString( glui->font, name );
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left = text_x_offset-3;
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right = left + 7 + text_width;
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if ( active ) {
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glEnable( GL_LINE_STIPPLE );
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glLineStipple( 1, 0x5555 );
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glColor3f( 0., 0., 0. );
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} else {
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glColor3ub( glui->bkgd_color.r, glui->bkgd_color.g, glui->bkgd_color.b );
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}
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glBegin( GL_LINE_LOOP );
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glVertex2i(left,0); glVertex2i( right,0);
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glVertex2i(right,h+1); glVertex2i( left,h+1);
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glEnd();
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glDisable( GL_LINE_STIPPLE );
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restore_window(orig);
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}
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/********************************* GLUI_RadioGroup::set_int_val() **********/
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void GLUI_RadioGroup::set_int_val( int new_val )
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{
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if ( new_val == int_val )
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return;
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set_selected( new_val );
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draw_group( true );
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output_live(true);
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}
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