Max 5 API Reference

uisimp.c

/* 
    uisimp -- fancier version of a toggle
*/

#include "ext.h"                            // standard Max include, always required
#include "ext_obex.h"                       // required for new style Max object
#include "jpatcher_api.h"
#include "jgraphics.h"

typedef struct _uisimp 
{
    t_jbox u_box;                       // header for UI objects
    void *u_out;                        // outlet pointer
    long u_state;                       // state (1 or 0)
    char u_mouseover;                   // is mouse over the object
    char u_mousedowninside;             // is mouse down within the object
    char u_trackmouse;                  // if non-zero, track mouse when button not down
    t_jrgba u_outline;
    t_jrgba u_check;
    t_jrgba u_background;
    t_jrgba u_hilite;
} t_uisimp;

void *uisimp_new(t_symbol *s, long argc, t_atom *argv);
void uisimp_free(t_uisimp *x);
void uisimp_assist(t_uisimp *x, void *b, long m, long a, char *s);
void uisimp_paint(t_uisimp *x, t_object *patcherview);
void uisimp_getdrawparams(t_uisimp *x, t_object *patcherview, t_jboxdrawparams *params);
void uisimp_mousedown(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers);
void uisimp_mousedrag(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers);
void uisimp_mouseup(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers);
void uisimp_mouseenter(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers);
void uisimp_mouseleave(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers);
void uisimp_mousemove(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers);
void uisimp_bang(t_uisimp *x);
void uisimp_int(t_uisimp *x, long n);


static t_class *s_uisimp_class;

int main(void)
{   
    t_class *c;
        
    c = class_new("uisimp", (method)uisimp_new, (method)uisimp_free, sizeof(t_uisimp), 0L, A_GIMME, 0);

    c->c_flags |= CLASS_FLAG_NEWDICTIONARY;
    jbox_initclass(c, JBOX_FIXWIDTH | JBOX_COLOR);

    class_addmethod(c, (method)uisimp_paint,        "paint",    A_CANT, 0);
    class_addmethod(c, (method)uisimp_mousedown,    "mousedown",    A_CANT, 0);
    class_addmethod(c, (method)uisimp_mousedrag,    "mousedrag",    A_CANT, 0);
    class_addmethod(c, (method)uisimp_mouseup,      "mouseup",  A_CANT, 0);
    class_addmethod(c, (method)uisimp_mouseenter,   "mouseenter",   A_CANT, 0);
    class_addmethod(c, (method)uisimp_mouseleave,   "mouseleave",   A_CANT, 0);
    class_addmethod(c, (method)uisimp_mousemove,    "mousemove",    A_CANT, 0);
    class_addmethod(c, (method)uisimp_assist,       "assist",   A_CANT, 0);  
    
    // messages for state setting / retrieval
    
    class_addmethod(c, (method)uisimp_int,          "int",  A_LONG, 0);
    class_addmethod(c, (method)uisimp_bang,         "bang", 0);
    
    // attributes
    
    CLASS_ATTR_CHAR(c, "trackmouse", 0, t_uisimp, u_trackmouse);
    CLASS_ATTR_STYLE_LABEL(c, "trackmouse", 0, "onoff", "Track Mouse");
    CLASS_ATTR_SAVE(c, "trackmouse", 0);
    CLASS_ATTR_CATEGORY(c, "trackmouse", 0, "Behavior");
    
    CLASS_STICKY_ATTR(c, "category", 0, "Color");
    CLASS_ATTR_RGBA(c, "bgcolor", 0, t_uisimp, u_background); 
    CLASS_ATTR_DEFAULTNAME_SAVE_PAINT(c, "bgcolor", 0, "1. 1. 1. 1."); 
    CLASS_ATTR_STYLE_LABEL(c,"bgcolor",0,"rgba","Background Color");
    
    CLASS_ATTR_RGBA(c, "bordercolor", 0, t_uisimp, u_outline); 
    CLASS_ATTR_DEFAULTNAME_SAVE_PAINT(c, "bordercolor", 0, "0.5 0.5 0.5 1."); 
    CLASS_ATTR_STYLE_LABEL(c,"bordercolor",0,"rgba","Border Color");
    
    CLASS_ATTR_RGBA(c, "hilitecolor", 0, t_uisimp, u_hilite); 
    CLASS_ATTR_DEFAULTNAME_SAVE_PAINT(c, "hilitecolor", 0, "0.5 0.5 0.5 1."); 
    CLASS_ATTR_STYLE_LABEL(c,"hilitecolor",0,"rgba","Hilite Color");

    //CLASS_ATTR_RGBA(c, "color", 0, t_uisimp, u_check); 
    CLASS_ATTR_DEFAULTNAME_SAVE_PAINT(c, "color", 0, "0. 0. 0. 1."); 
    CLASS_ATTR_STYLE_LABEL(c,"color",0,"rgba","Check Color");
    
    CLASS_STICKY_ATTR_CLEAR(c, "category");
    
    
    CLASS_ATTR_DEFAULT(c,"patching_rect",0, "0. 0. 20. 20.");
    
    class_register(CLASS_BOX, c);
    s_uisimp_class = c;

    return 0;
}

void uisimp_assist(t_uisimp *x, void *b, long m, long a, char *s)
{
    if (m == 1)     //inlet
        sprintf(s, "(signal) Audio Input");
}

void uisimp_paint(t_uisimp *x, t_object *patcherview)
{
    t_rect rect;
    t_jgraphics *g = (t_jgraphics*) patcherview_get_jgraphics(patcherview);     // obtain graphics context
    jbox_get_rect_for_view((t_object *)x, patcherview, &rect);
    
    // paint outline
    jgraphics_set_source_jrgba(g, &x->u_outline);
    jgraphics_set_line_width(g, 1.);
    jgraphics_rectangle(g, 0., 0., rect.width, rect.height);
    jgraphics_stroke(g);
    
    // paint "inner highlight" to indicate mouseover
    if (x->u_mouseover && !x->u_mousedowninside) {
        jgraphics_set_source_jrgba(g, &x->u_hilite);
        jgraphics_set_line_width(g, 1.);
        jgraphics_rectangle(g, 1., 1., rect.width - 2, rect.height - 2);
        jgraphics_stroke(g);
    }
    if (x->u_mousedowninside && !x->u_state) {      // paint hilite color
        jgraphics_set_source_jrgba(g, &x->u_hilite);
        jgraphics_rectangle(g, 1., 1., rect.width - 2, rect.height - 2);
        jgraphics_fill(g);
    }
    
    // paint "check" (actually a filled rectangle) if state is on
    if (x->u_state) {
        t_jrgba col;
        
        jbox_get_color((t_object *)x, &col);
        jgraphics_set_source_jrgba(g, &col);
        if (x->u_mousedowninside)       // make rect bigger if mouse is down and we are unchecking
            jgraphics_rectangle(g, 3., 3., rect.width - 6, rect.height - 6);
        else
            jgraphics_rectangle(g, 4., 4., rect.width - 8, rect.height - 8);
        jgraphics_fill(g);
    }
}

// mouse interaction

void uisimp_mousedown(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers)
{
    x->u_mousedowninside = true;    // wouldn't get a click unless it was inside the box
    jbox_redraw((t_jbox *)x);
}

void uisimp_mousedrag(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers)
{
    t_rect rect;
    
    // test to see if mouse is still inside the object
    jbox_get_rect_for_view((t_object *)x, patcherview, &rect);
    
    // redraw if changed
    if (pt.x >= 0 && pt.x <= rect.width && pt.y >= 0 && pt.y <= rect.height) {
        if (!x->u_mousedowninside) {
            x->u_mousedowninside = true;
            jbox_redraw((t_jbox *)x);
        }
    } else {
        if (x->u_mousedowninside) {
            x->u_mousedowninside = false;
            jbox_redraw((t_jbox *)x);
        }
    }
}

void uisimp_mouseup(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers)
{
    if (x->u_mousedowninside) {
        x->u_state = !x->u_state;
        uisimp_bang(x);
        x->u_mousedowninside = false;
        jbox_redraw((t_jbox *)x);
    }
}

void uisimp_mouseenter(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers)
{
    x->u_mouseover = true;
    jbox_redraw((t_jbox *)x);
}

void uisimp_mouseleave(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers)
{
    x->u_mouseover = false;
    jbox_redraw((t_jbox *)x);
}

void uisimp_mousemove(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers)
{
    // nothing to do here, but could track mouse position inside object
}

void uisimp_bang(t_uisimp *x)
{
    outlet_int(x->u_out, x->u_state);
}

void uisimp_int(t_uisimp *x, long n)
{
    x->u_state = n? 1 : 0;
    uisimp_bang(x);
    jbox_redraw((t_jbox *)x);
}

void uisimp_getdrawparams(t_uisimp *x, t_object *patcherview, t_jboxdrawparams *params)
{
    params->d_bordercolor.alpha = 0;
    params->d_boxfillcolor.alpha = 0;
}

void uisimp_free(t_uisimp *x)
{
    jbox_free((t_jbox *)x);
}

void *uisimp_new(t_symbol *s, long argc, t_atom *argv)
{
    t_uisimp *x = NULL;
    t_dictionary *d = NULL;
    long boxflags;
    
    if (!(d = object_dictionaryarg(argc,argv)))
        return NULL;
   
    x = (t_uisimp *)object_alloc(s_uisimp_class);
    boxflags = 0 
            | JBOX_DRAWFIRSTIN 
            | JBOX_NODRAWBOX
            | JBOX_DRAWINLAST
            | JBOX_TRANSPARENT  
    //      | JBOX_NOGROW
            | JBOX_GROWY
    //      | JBOX_GROWBOTH
    //      | JBOX_HILITE
    //      | JBOX_BACKGROUND
            | JBOX_DRAWBACKGROUND
    //      | JBOX_NOFLOATINSPECTOR
    //      | JBOX_TEXTFIELD
    //      | JBOX_MOUSEDRAGDELTA
    //      | JBOX_TEXTFIELD
            ;

    jbox_new((t_jbox *)x, boxflags, argc, argv);
    x->u_box.b_firstin = (void *)x;
    x->u_mousedowninside = x->u_mouseover = x->u_state = 0;
    x->u_out = intout((t_object *)x);
    attr_dictionary_process(x,d);
    jbox_ready((t_jbox *)x);
    return x;
}

Copyright © 2008, Cycling '74