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/* TODO add reset method for cursor icons, this should probably be done in
pd.tk, or cursor reset method could be done in help patch */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <m_pd.h>
#include <m_imp.h>
#include <g_canvas.h>
#define POLLTIME 10
static t_symbol *button_symbol;
static t_symbol *mousewheel_symbol;
static t_symbol *motion_symbol;
static t_symbol *x_symbol;
static t_symbol *y_symbol;
static t_symbol *cursor_receive_symbol;
t_int cursor_instances_polling;
static t_class *cursor_class;
typedef struct _cursor
{
t_object x_obj;
t_int am_polling;
t_symbol *receive_symbol;
t_canvas *parent_canvas;
t_outlet *data_outlet;
// t_outlet *status_outlet; // not used (yet?)
} t_cursor;
static void cursor_setmethod(t_cursor *x, t_symbol *s, int argc, t_atom *argv)
{
sys_vgui("set ::cursor_%s \"%s\"\n", s->s_name, atom_getsymbol(argv)->s_name);
canvas_setcursor(x->parent_canvas, 0); /* hack to refresh the cursor */
}
static void cursor_bang(t_cursor *x)
{
sys_vgui("pdsend \"%s motion [winfo pointerxy .]\";\n",
x->receive_symbol->s_name);
}
static void cursor_float(t_cursor *x, t_float f)
{
/* "bind all <Motion> only gives data when over windows, so its commented
* out. See the cursor_bang function to see the pointer x,y data getting */
if(f == 0) {
if (x->am_polling) {
x->am_polling = 0;
cursor_instances_polling--;
/* if no more objects are listening, stop sending the events */
if (cursor_instances_polling == 0)
sys_gui("::hcs::cursor::stoppolling \n");
pd_unbind(&x->x_obj.ob_pd, cursor_receive_symbol);
}
} else {
if ( ! x->am_polling) {
x->am_polling = 1;
pd_bind(&x->x_obj.ob_pd, cursor_receive_symbol);
cursor_instances_polling++;
/* if this is the first instance to start, set up Tcl binding and polling */
if (cursor_instances_polling == 1)
sys_gui("::hcs::cursor::startpolling\n");
}
}
}
static void cursor_button_callback(t_cursor *x, t_float button, t_float state)
{
t_atom output_atoms[2];
SETFLOAT(output_atoms, button);
SETFLOAT(output_atoms + 1, state);
outlet_anything(x->data_outlet, button_symbol, 2, output_atoms);
}
static void cursor_motion_callback(t_cursor *x, t_float x_position, t_float y_position)
{
t_atom output_atoms[2];
SETSYMBOL(output_atoms, x_symbol);
SETFLOAT(output_atoms + 1, x_position);
outlet_anything(x->data_outlet, motion_symbol, 2, output_atoms);
SETSYMBOL(output_atoms, y_symbol);
SETFLOAT(output_atoms + 1, y_position);
outlet_anything(x->data_outlet, motion_symbol, 2, output_atoms);
}
static void cursor_mousewheel_callback(t_cursor *x, t_float f)
{
t_atom output_atom;
SETFLOAT(&output_atom, f);
outlet_anything(x->data_outlet, mousewheel_symbol, 1, &output_atom);
}
static void cursor_free(t_cursor *x)
{
cursor_float(x, 0);
pd_unbind(&x->x_obj.ob_pd, x->receive_symbol);
}
static void *cursor_new(void)
{
char buf[MAXPDSTRING];
t_cursor *x = (t_cursor *)pd_new(cursor_class);
x->parent_canvas = canvas_getcurrent();
sprintf(buf, "#%lx", (t_int)x);
x->receive_symbol = gensym(buf);
pd_bind(&x->x_obj.ob_pd, x->receive_symbol);
x->data_outlet = outlet_new(&x->x_obj, 0);
//x->status_outlet = outlet_new(&x->x_obj, 0);
x->am_polling = 0;
return(x);
}
void cursor_setup(void)
{
cursor_class = class_new(gensym("cursor"),
(t_newmethod)cursor_new, (t_method)cursor_free,
sizeof(t_cursor), 0, 0);
if(!cursor_class)
return;
class_addbang(cursor_class, (t_method)cursor_bang);
class_addfloat(cursor_class, (t_method)cursor_float);
button_symbol = gensym("button");
mousewheel_symbol = gensym("mousewheel");
motion_symbol = gensym("motion");
x_symbol = gensym("x");
y_symbol = gensym("y");
//status_symbol = gensym("status");
cursor_receive_symbol = gensym("#hcs_cursor_class_receive");
class_addmethod(cursor_class, (t_method)cursor_button_callback,
button_symbol, A_DEFFLOAT, A_DEFFLOAT, 0);
class_addmethod(cursor_class, (t_method)cursor_motion_callback,
motion_symbol, A_DEFFLOAT, A_DEFFLOAT, 0);
class_addmethod(cursor_class, (t_method)cursor_mousewheel_callback,
mousewheel_symbol, A_DEFFLOAT, 0);
/* methods for setting the cursor icon */
class_addmethod(cursor_class, (t_method)cursor_setmethod,
gensym("runmode_nothing"), A_GIMME, 0);
class_addmethod(cursor_class, (t_method)cursor_setmethod,
gensym("runmode_clickme"), A_GIMME, 0);
class_addmethod(cursor_class, (t_method)cursor_setmethod,
gensym("runmode_thicken"), A_GIMME, 0);
class_addmethod(cursor_class, (t_method)cursor_setmethod,
gensym("runmode_addpoint"), A_GIMME, 0);
class_addmethod(cursor_class, (t_method)cursor_setmethod,
gensym("editmode_nothing"), A_GIMME, 0);
class_addmethod(cursor_class, (t_method)cursor_setmethod,
gensym("editmode_connect"), A_GIMME, 0);
class_addmethod(cursor_class, (t_method)cursor_setmethod,
gensym("editmode_disconnect"), A_GIMME, 0);
sys_vgui("eval [read [open {%s/%s.tcl}]]\n",
cursor_class->c_externdir->s_name,
cursor_class->c_name->s_name);
sys_vgui("::hcs::cursor::setup %s\n", cursor_receive_symbol->s_name);
}
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