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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 <g_canvas.h>
static t_symbol *button_symbol;
static t_symbol *wheel_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_instance_count;
t_int cursor_instances_polling;
static t_class *cursor_class;
typedef struct _cursor
{
t_object x_obj;
t_symbol *receive_symbol;
t_canvas *parent_canvas;
t_outlet *data_outlet;
// t_outlet *status_outlet; // not used (yet?)
t_int optionc;
char *optionv[];
} t_cursor;
/* idea from #tcl for a Tcl unbind */
static void create_unbind (void)
{
sys_gui("if {[info commands ::hcs_cursor_class::unbind] ne {::hcs_cursor_class::unbind}} {");
sys_gui(" proc ::hcs_cursor_class::unbind {tag event script} {\n");
sys_gui(" set bind {}\n");
sys_gui(" foreach x [split [bind $tag $event] \"\n\"] {\n");
sys_gui(" if {$x != $script} {lappend bind $x}\n");
sys_gui(" }\n");
sys_gui(" bind $tag $event {}\n");
sys_gui(" foreach x $bind {bind $tag $event $x}\n");
sys_gui(" }\n");
sys_gui("}\n");
}
static void create_namespace(void)
{
sys_gui("if { [namespace exists ::hcs_cursor_class]} {\n");
sys_gui(" puts stderr {ERROR: ::hcs_cursor_class namespace exists!}\n");
sys_gui("} else {\n");
sys_gui(" namespace eval ::hcs_cursor_class {\n");
sys_gui(" variable send_to_pd 0\n");
sys_gui(" variable last_x 0\n");
sys_gui(" variable last_y 0\n");
sys_gui(" }\n");
sys_gui("}\n");
}
static void create_button_proc(void)
{
}
static void create_mousewheel_proc(void)
{
}
static void create_motion_proc(void)
{
/* create proc and bind it, if it doesn't exist */
// sys_gui("if {[info commands ::hcs_cursor_class::motion] ne {::hcs_cursor_class::motion}} {");
sys_gui (" proc ::hcs_cursor_class::motion {x y} {\n");
// sys_gui (" if {{$::hcs_cursor_class::send_to_pd > 0} {\n");
// sys_gui (" if { $x != $::hcs_cursor_class::last_x \\\n");
// sys_gui (" || $y != $::hcs_cursor_class::last_y} {\n");
sys_vgui(" pd [concat %s motion $x $y \\;]\n",
cursor_receive_symbol->s_name);
// sys_gui (" }\n");
// sys_gui (" }\n");
sys_gui (" }\n");
// sys_gui ("}\n");
sys_gui ("\n");
}
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("pd [concat %s motion [winfo pointerx .] [winfo pointery .] \\;]\n",
x->receive_symbol->s_name);
}
static void cursor_float(t_cursor *x, t_float f)
{
if(f > 0)
{
// TODO make sure the procs are setup
// TODO bind to the global cursor receive symbol
pd_bind(&x->x_obj.ob_pd, cursor_receive_symbol);
cursor_instances_polling++;
/* if this is the first instance to start polling, set up the bind */
if (cursor_instances_polling == 1)
sys_gui ("bind all <Motion> {+::hcs_cursor_class::motion %x %y}\n");
}
else
{
// TODO unbind from the global cursor receive symbol
pd_unbind(&x->x_obj.ob_pd, cursor_receive_symbol);
cursor_instances_polling--;
/* if no more objects are listening, stop sending the events */
if (cursor_instances_polling == 0)
sys_gui ("unbind all <Motion> {::hcs_cursor_class::motion %x %y}\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_wheel_callback(t_cursor *x, t_float f)
{
t_atom output_atom;
SETFLOAT(&output_atom, f);
outlet_anything(x->data_outlet, wheel_symbol, 1, &output_atom);
}
static void cursor_free(t_cursor *x)
{
cursor_float(x, 0);
/* TODO free the "bind all" somehow so that the tcl procs aren't
* continuing to work even tho no cursor objects are receiving the data */
cursor_instance_count--;
}
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);
create_namespace();
create_motion_proc();
/* not working yet
sys_vgui("bind . <ButtonPress> {+pd [concat %s button %%b 1 \\;]}\n",
x->receive_symbol->s_name);
sys_vgui("bind . <ButtonRelease> {+pd [concat %s button %%b 0 \\;]}\n",
x->receive_symbol->s_name);
sys_vgui("bind . <MouseWheel> {+pd [concat %s wheel %%D \\;]}\n",
x->receive_symbol->s_name);
*/
cursor_instance_count++;
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);
class_addbang(cursor_class, (t_method)cursor_bang);
class_addfloat(cursor_class, (t_method)cursor_float);
button_symbol = gensym("button");
wheel_symbol = gensym("wheel");
motion_symbol = gensym("motion");
x_symbol = gensym("x");
y_symbol = gensym("y");
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_wheel_callback,
wheel_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);
}
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