Max 5 API Reference

uisimp5.c

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/**
    @file
    uisimp - a very simple ui object - step 7

    @ingroup    examples    
*/

#include "ext.h"
#include "ext_obex.h"
#include "jpatcher_api.h"
#include "jgraphics.h"


t_class *s_uisimp_class = 0;

enum {
    EXAMP_SQUARE = 0,
    EXAMP_CIRCLE,
    EXAMP_ANGLE
};

typedef struct _uisimp
{
    t_jbox      j_box;
    long        j_mouse_is_down;
    int         j_mouse_counter;
    long        j_inset;
    char        j_reset;
    long        j_shape;
    char        j_has_focus;
    t_pt        j_absolute_position;
} t_uisimp;



void uisimp_assist(t_uisimp *x, void *b, long m, long a, char *s);
t_uisimp* uisimp_new(t_symbol *s, long argc, t_atom *argv);
void uisimp_int(t_uisimp *x, long n);
void uisimp_free(t_uisimp *x);

void uisimp_paint(t_uisimp *x, t_object *view);

void uisimp_mousedragdelta(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers);
void uisimp_mousedown(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_getdrawparams(t_uisimp *x, t_object *patcherview, t_jboxdrawparams *params);
long uisimp_key(t_uisimp *x, t_object *patcherview, long keycode, long modifiers, long textcharacter);
void uisimp_focusgained(t_uisimp *x, t_object *patcherview);
void uisimp_focuslost(t_uisimp *x, t_object *patcherview);

void uisimp_bang(t_uisimp *x);

int main(void)
{
    t_class *c;
    
    c = class_new("uisimp5", 
                            (method)uisimp_new,
                            (method)uisimp_free,
                            sizeof(t_uisimp),
                            (method)NULL,
                            A_GIMME,
                            0L);
    
    c->c_flags |= CLASS_FLAG_NEWDICTIONARY;
    
    jbox_initclass(c, JBOX_COLOR | JBOX_FIXWIDTH | JBOX_FONTATTR);
    
    class_addmethod(c, (method) uisimp_paint, "paint", A_CANT, 0);
    class_addmethod(c, (method) uisimp_int, "int", A_LONG, 0);
    
    class_addmethod(c, (method) uisimp_mousedown, "mousedown", A_CANT, 0);
    class_addmethod(c, (method) uisimp_mousedragdelta, "mousedragdelta", A_CANT, 0);
    class_addmethod(c, (method) uisimp_mouseup, "mouseup", A_CANT, 0);
    class_addmethod(c, (method) uisimp_getdrawparams, "getdrawparams", A_CANT, 0);

    class_addmethod(c, (method) uisimp_key, "key", A_CANT, 0);
    class_addmethod(c, (method) uisimp_focusgained, "focusgained", A_CANT, 0);
    class_addmethod(c, (method) uisimp_focuslost, "focuslost", A_CANT, 0);

    class_addmethod(c, (method) uisimp_assist, "assist", A_CANT, 0);
    class_addmethod(c, (method) jbox_notify, "notify", A_CANT, 0);

    CLASS_ATTR_DEFAULT(c, "patching_rect", 0, "0 0 60 60");
    CLASS_ATTR_DEFAULT(c, "color", 0, "0.8 0.5 0.2 1");
    
    CLASS_ATTR_LONG(c,"inset",0, t_uisimp, j_inset);
    CLASS_ATTR_LABEL(c,"inset",0,"Filled Area Inset");
    CLASS_ATTR_CATEGORY(c,"inset",0,"Tweaks");
    CLASS_ATTR_DEFAULT_SAVE_PAINT(c,"inset",0,"3");
    
    CLASS_ATTR_CHAR(c,"reset",0, t_uisimp, j_reset);
    CLASS_ATTR_STYLE_LABEL(c,"reset",0,"onoff","Reset Counter on Click");
    CLASS_ATTR_CATEGORY(c,"reset",0,"Tweaks");
    CLASS_ATTR_DEFAULT_SAVE(c,"reset",0,"1");
    
    CLASS_ATTR_LONG(c,"shape",0, t_uisimp, j_shape);
    CLASS_ATTR_LABEL(c,"shape", 0, "Fill Shape");
    CLASS_ATTR_CATEGORY(c,"shape",0,"Shape");
    CLASS_ATTR_ENUMINDEX(c,"shape", 0, "Square Circle Angle");
    CLASS_ATTR_DEFAULT_SAVE_PAINT(c,"shape",0,"0");
    
    s_uisimp_class = c;
    class_register(CLASS_BOX, s_uisimp_class);
    return 0;
}

void uisimp_assist(t_uisimp *x, void *b, long m, long a, char *s)
{
    if (m == ASSIST_INLET)
        sprintf(s,"bang Says \"bang\"");
}


t_uisimp* uisimp_new(t_symbol *s, long argc, t_atom *argv)
{
    t_uisimp* x = NULL;
    t_max_err err = MAX_ERR_GENERIC;
    t_dictionary *d;
    long flags;
    
    if (!(d=object_dictionaryarg(argc,argv)))
        return NULL;

    x = (t_uisimp*) object_alloc(s_uisimp_class);
    flags = 0 
            | JBOX_DRAWFIRSTIN 
    //      | JBOX_NODRAWBOX
            | JBOX_DRAWINLAST
            | JBOX_TRANSPARENT  
    //      | JBOX_NOGROW
    //      | JBOX_GROWY
            | JBOX_GROWBOTH
            | JBOX_HILITE
    //      | JBOX_BACKGROUND
    //      | JBOX_TEXTFIELD
            | JBOX_DRAWBACKGROUND
            | JBOX_DEFAULTNAMES
            | JBOX_MOUSEDRAGDELTA
            ;

    err = jbox_new(&x->j_box, flags, argc, argv); 

    x->j_box.b_firstin = (t_object*) x;

    attr_dictionary_process(x, d);
    jbox_ready(&x->j_box);

    return x;
}

void uisimp_int(t_uisimp *x, long n)
{
    x->j_mouse_counter = n;
    jbox_redraw((t_jbox *)x);
}

void uisimp_free(t_uisimp *x)
{
    jbox_free(&x->j_box);
}

void uisimp_paint(t_uisimp *x, t_object *view)
{
    t_jgraphics *g;
    t_rect rect;
    t_jrgba rgba, textcolor;
    t_jfont *jf;
    t_jtextlayout *jtl;
    char text[16];
    long inset = x->j_inset;
    
    g = (t_jgraphics*) patcherview_get_jgraphics(view); 
    jbox_get_rect_for_view(&x->j_box.b_ob, view, &rect);
    
    if (x->j_shape == EXAMP_SQUARE)
        jgraphics_rectangle(g, inset, inset, rect.width - (inset * 2), rect.height - (inset * 2));
    else if (x->j_shape == EXAMP_CIRCLE) {
        jgraphics_arc(g, rect.width * .5, rect.height * .5, (rect.width * .5) - (inset * 2), 0, JGRAPHICS_2PI);
        jgraphics_close_path(g);
    } else if (x->j_shape == EXAMP_ANGLE) {
        jgraphics_move_to(g, inset * 2, inset);
        jgraphics_line_to(g, rect.width - (inset * 2), inset);
        jgraphics_line_to(g, rect.width - (inset * 2), inset * 2);
        jgraphics_line_to(g, rect.width - (inset * 2), rect.height - (inset * 2));
        jgraphics_line_to(g, rect.width - (inset * 2), rect.height - inset);
        jgraphics_line_to(g, inset * 2, rect.height - (inset * 2));
        jgraphics_line_to(g, inset, rect.height - (inset * 3));
        jgraphics_line_to(g, inset, inset * 2);
        jgraphics_line_to(g, inset * 2, inset);
        jgraphics_close_path(g);
    }
        
    if (x->j_mouse_is_down) {
        jbox_get_color((t_object *)x, &rgba);
        jgraphics_set_source_jrgba(g, &rgba);
    } else
        jgraphics_set_source_rgba(g, 0, 0, 0, 1.0);
    jgraphics_fill(g);
    // draw counter
    jf = jfont_create(jbox_get_fontname((t_object *)x)->s_name, jbox_get_font_slant((t_object *)x), jbox_get_font_weight((t_object *)x), jbox_get_fontsize((t_object *)x));
    jtl = jtextlayout_create();
    sprintf(text,"%d",x->j_mouse_counter);
    
    jtextlayout_set(jtl, text, jf, 5, 5, rect.width - 10, rect.height- 10, JGRAPHICS_TEXT_JUSTIFICATION_CENTERED, JGRAPHICS_TEXTLAYOUT_NOWRAP);
    textcolor.red = textcolor.green = textcolor.blue = 1;
    textcolor.alpha = 1;
    jtextlayout_settextcolor(jtl, &textcolor); 
    jtextlayout_draw(jtl, g);
    jtextlayout_destroy(jtl);
    jfont_destroy(jf);
}

void uisimp_getdrawparams(t_uisimp *x, t_object *patcherview, t_jboxdrawparams *params)
{
    if (x->j_has_focus) {
        params->d_bordercolor.red = 1;
        params->d_bordercolor.green = 0;
        params->d_bordercolor.blue = 0;
        params->d_bordercolor.alpha = 1;
        params->d_borderthickness = 2.;
    }
}

void uisimp_bang(t_uisimp *x)
{
    object_post((t_object *)x, "bang!");
}

void uisimp_mousedragdelta(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers)
{
    t_rect rect;
    jbox_get_rect_for_view((t_object *)x, patcherview, &rect);
    rect.x += pt.x;
    rect.y += pt.y;
    jbox_set_rect_for_view((t_object *)x, patcherview, &rect);
}

void uisimp_mousedown(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers)
{
    x->j_absolute_position = pt;
    
    x->j_mouse_is_down = true;
    if (x->j_reset)
        x->j_mouse_counter = 0;
    jbox_redraw((t_jbox *)x);
}

void uisimp_mouseup(t_uisimp *x, t_object *patcherview, t_pt pt, long modifiers)
{
    t_rect rect;
    jbox_get_rect_for_view((t_object *)x, patcherview, &rect);
    jmouse_setposition_view(patcherview, rect.x + x->j_absolute_position.x, rect.y + x->j_absolute_position.y);
    x->j_mouse_is_down = false;
    jbox_redraw((t_jbox *)x);
}

long uisimp_key(t_uisimp *x, t_object *patcherview, long keycode, long modifiers, long textcharacter)
{
    switch (textcharacter) {
        case '+':
            x->j_mouse_counter++;
            jbox_redraw((t_jbox *)x);
            break;
        case '-':
            x->j_mouse_counter--;
            jbox_redraw((t_jbox *)x);
            break;
    }
    
    return 0;   // returns 1 if you want to filter it from the key object
}

void uisimp_focusgained(t_uisimp *x, t_object *patcherview)
{
    post("You can now press \"+\" or \"-\"");
    x->j_has_focus = true;
    jbox_redraw((t_jbox *)x);
}

void uisimp_focuslost(t_uisimp *x, t_object *patcherview)
{
    post("You have lost the keyboard focus.");
    x->j_has_focus = false;
    jbox_redraw((t_jbox *)x);
}

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