You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
390 lines
9.4 KiB
C++
390 lines
9.4 KiB
C++
/****************************************************************************
|
|
|
|
GLUI User Interface Toolkit
|
|
---------------------------
|
|
|
|
glui_rotation - GLUI_Rotation control class
|
|
|
|
|
|
--------------------------------------------------
|
|
|
|
Copyright (c) 1998 Paul Rademacher
|
|
|
|
This program is freely distributable without licensing fees and is
|
|
provided without guarantee or warrantee expressed or implied. This
|
|
program is -not- in the public domain.
|
|
|
|
*****************************************************************************/
|
|
|
|
#include "glui.h"
|
|
#include "arcball.h"
|
|
#include "algebra3.h"
|
|
|
|
/*************************** GLUI_Rotation::iaction_mouse_down_handler() ***/
|
|
|
|
int GLUI_Rotation::iaction_mouse_down_handler( int local_x, int local_y )
|
|
{
|
|
copy_float_array_to_ball();
|
|
|
|
init_ball();
|
|
|
|
local_y = (int) floor(2.0 * ball->center[1] - local_y);
|
|
|
|
ball->mouse_down( local_x, local_y );
|
|
|
|
/* printf( "%d %d - %f %f\n", local_x, local_y, ball->center[0], ball->center[1] ); */
|
|
|
|
copy_ball_to_float_array();
|
|
|
|
spinning = false;
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/*********************** GLUI_Rotation::iaction_mouse_up_handler() **********/
|
|
|
|
int GLUI_Rotation::iaction_mouse_up_handler( int local_x, int local_y,
|
|
int inside )
|
|
{
|
|
copy_float_array_to_ball();
|
|
|
|
ball->mouse_up();
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/******************* GLUI_Rotation::iaction_mouse_held_down_handler() ******/
|
|
|
|
int GLUI_Rotation::iaction_mouse_held_down_handler( int local_x, int local_y,
|
|
int inside)
|
|
{
|
|
if ( NOT glui )
|
|
return 0;
|
|
|
|
copy_float_array_to_ball();
|
|
|
|
local_y = (int) floor(2.0 * ball->center[1] - local_y);
|
|
|
|
/* printf( "%d %d\n", local_x, local_y ); */
|
|
|
|
ball->mouse_motion( local_x, local_y, 0,
|
|
(glui->curr_modifiers & GLUT_ACTIVE_ALT) != 0,
|
|
(glui->curr_modifiers & GLUT_ACTIVE_CTRL) != 0 );
|
|
|
|
copy_ball_to_float_array();
|
|
|
|
if ( can_spin )
|
|
spinning = true;
|
|
|
|
return false;
|
|
}
|
|
|
|
|
|
/******************** GLUI_Rotation::iaction_draw_active_area_persp() **************/
|
|
|
|
void GLUI_Rotation::iaction_draw_active_area_persp( void )
|
|
{
|
|
if ( NOT can_draw() )
|
|
return;
|
|
|
|
copy_float_array_to_ball();
|
|
|
|
setup_texture();
|
|
setup_lights();
|
|
|
|
glEnable(GL_CULL_FACE );
|
|
|
|
glMatrixMode( GL_MODELVIEW );
|
|
glPushMatrix();
|
|
|
|
mat4 tmp_rot = *ball->rot_ptr;
|
|
glMultMatrixf( (float*) &tmp_rot[0][0] );
|
|
|
|
/*** Draw the checkered box ***/
|
|
/*glDisable( GL_TEXTURE_2D ); */
|
|
draw_ball( 1.96 );
|
|
|
|
glPopMatrix();
|
|
|
|
glDisable( GL_TEXTURE_2D );
|
|
glDisable( GL_LIGHTING );
|
|
glDisable( GL_CULL_FACE );
|
|
}
|
|
|
|
|
|
/******************** GLUI_Rotation::iaction_draw_active_area_ortho() **********/
|
|
|
|
void GLUI_Rotation::iaction_draw_active_area_ortho( void )
|
|
{
|
|
if ( NOT can_draw() )
|
|
return;
|
|
|
|
/********* Draw emboss circles around arcball control *********/
|
|
int k;
|
|
float radius;
|
|
radius = (float)(h-22)/2.0; /*MIN((float)w/2.0, (float)h/2.0); */
|
|
glLineWidth( 1.0 );
|
|
glBegin( GL_LINE_LOOP);
|
|
for( k=0; k<60; k++ ) {
|
|
float phi = 2*M_PI*(float)k/60.0;
|
|
vec2 p( cos(phi) * (2.0 + radius), sin(phi) * (2.0 + radius));
|
|
if ( p[1] < -p[0] ) glColor3ub( 128,128,128 );
|
|
else glColor3ub( 255,255,255 );
|
|
glVertex2fv((float*)&p[0]);
|
|
}
|
|
glEnd();
|
|
|
|
glBegin( GL_LINE_LOOP);
|
|
for( k=0; k<60; k++ ) {
|
|
float phi = 2*M_PI*(float)k/60.0;
|
|
vec2 p( cos(phi) * (1.0 + radius), sin(phi) * (1.0 + radius));
|
|
if ( enabled ) {
|
|
if ( p[1] < -p[0] ) glColor3ub( 0,0,0);
|
|
else glColor3ub( 192,192,192);
|
|
}
|
|
else
|
|
{
|
|
if ( p[1] < -p[0] ) glColor3ub( 180,180,180);
|
|
else glColor3ub( 192,192,192);
|
|
}
|
|
glVertex2fv((float*)&p[0]);
|
|
}
|
|
glEnd();
|
|
}
|
|
|
|
|
|
/******************************** GLUI_Rotation::iaction_dump() **********/
|
|
|
|
void GLUI_Rotation::iaction_dump( FILE *output )
|
|
{
|
|
}
|
|
|
|
|
|
/******************** GLUI_Rotation::iaction_special_handler() **********/
|
|
|
|
int GLUI_Rotation::iaction_special_handler( int key,int modifiers )
|
|
{
|
|
|
|
return false;
|
|
}
|
|
|
|
/********************************** GLUI_Rotation::init_ball() **********/
|
|
|
|
void GLUI_Rotation::init_ball( void )
|
|
{
|
|
/*printf( "%f %f %f", float( MIN(w/2,h/2)), (float) w/2, (float) h/2 ); */
|
|
|
|
ball->set_params( vec2( (float)(w/2), (float)((h-18)/2)),
|
|
(float) 2.0*(h-18) );
|
|
/*ball->set_damping( .05 ); */
|
|
/*float( MIN(w/2,h/2))*2.0 ); */
|
|
/* ball->reset_mouse(); */
|
|
}
|
|
|
|
|
|
/****************************** GLUI_Rotation::setup_texture() *********/
|
|
|
|
void GLUI_Rotation::setup_texture( void )
|
|
{
|
|
int i, j;
|
|
int dark, light; /*** Dark and light colors for ball checkerboard ***/
|
|
|
|
#define CHECKBOARD_SIZE 64
|
|
unsigned char texture_image[CHECKBOARD_SIZE] [CHECKBOARD_SIZE] [3];
|
|
unsigned char c;
|
|
for( i=0; i<CHECKBOARD_SIZE; i++ ) {
|
|
for( j=0; j<CHECKBOARD_SIZE; j++ ) {
|
|
if ( enabled ) {
|
|
dark = 110;
|
|
light = 220;
|
|
}
|
|
else {
|
|
dark = glui->bkgd_color.r - 30;
|
|
light = glui->bkgd_color.r;
|
|
}
|
|
|
|
c = (( (((i&0x8)==0) ^ ((j&0x8))) == 0 )) * light;
|
|
if ( c == 0 )
|
|
c = dark;
|
|
texture_image[i][j][0] = c;
|
|
texture_image[i][j][1] = c;
|
|
texture_image[i][j][2] = c;
|
|
}
|
|
}
|
|
|
|
glColor3f( 1.0, 1.0, 1.0 );
|
|
glPixelStorei( GL_UNPACK_ALIGNMENT, 1 );
|
|
glEnable( GL_TEXTURE_2D);
|
|
glTexEnvf( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
|
|
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT );
|
|
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT );
|
|
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST );
|
|
glTexParameteri( GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST );
|
|
glTexImage2D( GL_TEXTURE_2D, 0, GL_RGB, CHECKBOARD_SIZE,
|
|
CHECKBOARD_SIZE, 0, GL_RGB, GL_UNSIGNED_BYTE,
|
|
texture_image );
|
|
|
|
}
|
|
|
|
|
|
/****************************** GLUI_Rotation::setup_lights() ***********/
|
|
|
|
void GLUI_Rotation::setup_lights( void )
|
|
{
|
|
glEnable( GL_LIGHTING );
|
|
/* if ( enabled )
|
|
glEnable( GL_LIGHTING );
|
|
else
|
|
glDisable( GL_LIGHTING );*/
|
|
glEnable(GL_LIGHT0);
|
|
glColorMaterial(GL_AMBIENT_AND_DIFFUSE, GL_FRONT_AND_BACK );
|
|
glEnable(GL_COLOR_MATERIAL);
|
|
GLfloat light0_ambient[] = {0.2f, 0.2f, 0.2f, 1.0f};
|
|
GLfloat light0_diffuse[] = {1.f, 1.f, 1.0f, 1.0f};
|
|
GLfloat light0_position[] = {-1.f, 1.f, 1.0f, 0.0f};
|
|
glLightfv(GL_LIGHT0, GL_AMBIENT, light0_ambient);
|
|
glLightfv(GL_LIGHT0, GL_DIFFUSE, light0_diffuse);
|
|
glLightfv(GL_LIGHT0, GL_POSITION, light0_position);
|
|
}
|
|
|
|
|
|
/****************************** GLUI_Rotation::draw_ball() **************/
|
|
|
|
void GLUI_Rotation::draw_ball( float radius )
|
|
{
|
|
if ( NOT can_draw() )
|
|
return;
|
|
|
|
if (quadObj == NULL) quadObj = gluNewQuadric();
|
|
if (quadObj) {
|
|
gluQuadricDrawStyle(quadObj, GLU_FILL);
|
|
gluQuadricNormals(quadObj, GLU_SMOOTH);
|
|
gluQuadricTexture(quadObj, true );
|
|
gluSphere(quadObj, radius, 16, 16);
|
|
}
|
|
}
|
|
|
|
|
|
/****************************** GLUI_Rotation::reset() **********/
|
|
|
|
void GLUI_Rotation::reset( void )
|
|
{
|
|
ball->init(); /** reset quaternion, etc. **/
|
|
ball->set_params( vec2( (float)(w/2), (float)((h-18)/2)),
|
|
(float) 2.0*(h-18) );
|
|
|
|
set_spin( this->damping );
|
|
|
|
copy_ball_to_float_array();
|
|
|
|
translate_and_draw_front();
|
|
|
|
output_live(true); /*** Output live and draw main grx window ***/
|
|
}
|
|
|
|
|
|
/****************************** GLUI_Rotation::needs_idle() *********/
|
|
|
|
int GLUI_Rotation::needs_idle( void )
|
|
{
|
|
return can_spin;
|
|
}
|
|
|
|
|
|
/****************************** GLUI_Rotation::idle() ***************/
|
|
|
|
void GLUI_Rotation::idle( void )
|
|
{
|
|
spinning = ball->is_spinning;
|
|
|
|
if ( can_spin == true AND spinning == true ) {
|
|
copy_float_array_to_ball();
|
|
ball->idle();
|
|
|
|
*ball->rot_ptr = *ball->rot_ptr * ball->rot_increment;
|
|
|
|
mat4 tmp_rot;
|
|
tmp_rot = *ball->rot_ptr;
|
|
|
|
copy_ball_to_float_array();
|
|
|
|
draw_active_area_only = true;
|
|
translate_and_draw_front();
|
|
draw_active_area_only = false;
|
|
|
|
output_live(true); /** output live and update gfx **/
|
|
}
|
|
else {
|
|
}
|
|
}
|
|
|
|
|
|
/********************** GLUI_Rotation::copy_float_array_to_ball() *********/
|
|
|
|
void GLUI_Rotation::copy_float_array_to_ball( void )
|
|
{
|
|
int i;
|
|
float *fp_src, *fp_dst;
|
|
|
|
fp_src = &float_array_val[0];
|
|
fp_dst = &((*ball->rot_ptr)[0][0]);
|
|
|
|
for( i=0; i<16; i++ ) {
|
|
*fp_dst = *fp_src;
|
|
|
|
fp_src++;
|
|
fp_dst++;
|
|
}
|
|
}
|
|
|
|
|
|
/********************** GLUI_Rotation::copy_ball_to_float_array() *********/
|
|
|
|
void GLUI_Rotation::copy_ball_to_float_array( void )
|
|
{
|
|
mat4 tmp_rot;
|
|
tmp_rot = *ball->rot_ptr;
|
|
|
|
set_float_array_val( (float*) &tmp_rot[0][0] );
|
|
}
|
|
|
|
|
|
/************************ GLUI_Rotation::set_spin() **********************/
|
|
|
|
void GLUI_Rotation::set_spin( float damp_factor )
|
|
{
|
|
if ( damp_factor == 0.0 )
|
|
can_spin = false;
|
|
else
|
|
can_spin = true;
|
|
|
|
ball->set_damping( 1.0 - damp_factor );
|
|
|
|
this->damping = damp_factor;
|
|
}
|
|
|
|
|
|
/************** GLUI_Rotation::GLUI_Rotation() ********************/
|
|
|
|
|
|
GLUI_Rotation::GLUI_Rotation( void )
|
|
{
|
|
sprintf( name, "Rotation: %p", this );
|
|
type = GLUI_CONTROL_ROTATION;
|
|
w = GLUI_ROTATION_WIDTH;
|
|
h = GLUI_ROTATION_HEIGHT;
|
|
can_activate = true;
|
|
live_type = GLUI_LIVE_FLOAT_ARRAY;
|
|
float_array_size = 16;
|
|
quadObj = NULL;
|
|
alignment = GLUI_ALIGN_CENTER;
|
|
can_spin = false;
|
|
spinning = false;
|
|
damping = 0.0;
|
|
ball = new Arcball;
|
|
|
|
reset();
|
|
}
|