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-rw-r--r--knob.c793
1 files changed, 793 insertions, 0 deletions
diff --git a/knob.c b/knob.c
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index 0000000..ca4fcda
--- /dev/null
+++ b/knob.c
@@ -0,0 +1,793 @@
+/* Copyright (c) 1997-1999 Miller Puckette.
+ * For information on usage and redistribution, and for a DISCLAIMER OF ALL
+ * WARRANTIES, see the file, "LICENSE.txt," in this distribution. */
+
+/* g_7_guis.c written by Thomas Musil (c) IEM KUG Graz Austria 2000-2001 */
+/* thanks to Miller Puckette, Guenther Geiger and Krzystof Czaja */
+
+/* 'knob' gui object by Frank Barknecht, 'externalised' by Olaf Matthes */
+/* changed for devel_0.37 by Christoph Kummerer - hardly tested */
+
+/* I had to out-comment the loadbang stuff because I couldn't find the code
+ in Pd where it is declared */
+
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <ctype.h>
+#include "m_pd.h"
+
+#ifndef PD_MAJOR_VERSION
+#include "s_stuff.h"
+#else
+#include "m_imp.h"
+#endif
+
+#include "g_canvas.h"
+
+#include "g_all_guis.h"
+#include <math.h>
+
+#ifdef WIN32
+#include <io.h>
+#else
+#include <unistd.h>
+#endif
+
+#ifndef M_PI
+#define M_PI 3.141592654
+#endif
+
+#define IEM_KNOB_DEFAULTSIZE 32
+
+/* ------------ knob gui-vertical slider ----------------------- */
+
+t_widgetbehavior knob_widgetbehavior;
+static t_class *knob_class;
+t_symbol *iemgui_key_sym=0; /* taken from g_all_guis.c */
+
+typedef struct _knob /* taken from Frank's modyfied g_all_guis.h */
+{
+ t_iemgui x_gui;
+ int x_pos;
+ int x_val;
+ int x_lin0_log1;
+ int x_steady;
+ double x_min;
+ double x_max;
+ double x_k;
+} t_knob;
+
+/* widget helper functions */
+
+static void knob_draw_update(t_knob *x, t_glist *glist)
+{
+ if (glist_isvisible(glist))
+ {
+ /* compute dial:*/
+ float radius = 0.5*(float)x->x_gui.x_h;
+ double angle = 7.0/36.0 + 34.0/36.0*2.0*M_PI*( (double)x->x_val*0.01/(double)x->x_gui.x_h );
+ int start = -80;
+ int extent = 350 - (int)(360.0*angle/(2.0*M_PI));
+ /* center point: */
+ int x1 = text_xpix(&x->x_gui.x_obj, glist) + radius;
+ int y1 = text_ypix(&x->x_gui.x_obj, glist) + radius;
+ int x2 = text_xpix(&x->x_gui.x_obj, glist) + radius + radius * sin( -angle);
+ int y2 = text_ypix(&x->x_gui.x_obj, glist) + radius + radius * cos( angle);
+
+ sys_vgui(".x%lx.c coords %xKNOB %d %d %d %d\n",
+ glist_getcanvas(glist), x,
+ x1, /* x1 */
+ y1, /* y1 */
+ x2, /* x2 */
+ y2 /* y2 */
+ );
+
+ /* post("knob: (%d, %d) (%d, %d)", x1,y1,x2,y2); */
+
+ sys_vgui(".x%lx.c itemconfigure %xBASE -start %d -extent %d \n", glist_getcanvas(glist), x,
+ start, extent);
+ }
+}
+
+static void knob_draw_new(t_knob *x, t_glist *glist)
+{
+ int xpos=text_xpix(&x->x_gui.x_obj, glist);
+ int ypos=text_ypix(&x->x_gui.x_obj, glist);
+ /* int r = ypos + x->x_gui.x_h - (x->x_val + 50)/100; */
+ t_canvas *canvas=glist_getcanvas(glist);
+
+ /* compute dial:*/
+ float radius = 0.5*(float)x->x_gui.x_h;
+ /* center point: */
+ int x1 = xpos + radius;
+ int y1 = ypos + radius;
+ /* dial */
+ double angle = 7.0/36.0 + 34.0/36.0*2.0*M_PI*((float)x->x_val*0.01/(float)(x->x_gui.x_h));
+ int x2 = x1 + radius * sin(-angle);
+ int y2 = y1 + radius * cos(angle);
+
+
+ /* BASE2 */
+ sys_vgui(".x%lx.c create arc %d %d %d %d -outline #%6.6x -style arc -width 3 -start -80 -extent 340 -tags %xBASE2\n",
+ canvas,
+ xpos, ypos, /* upper left */
+ xpos + x->x_gui.x_h, ypos + x->x_gui.x_h, /* lower right */
+ x->x_gui.x_fcol, x);
+
+ /* BASE */
+ sys_vgui(".x%lx.c create arc %d %d %d %d -fill #%6.6x -style arc -width 3 -start -80 -extent 340 -tags %xBASE\n",
+ canvas,
+ xpos, ypos, /* upper left */
+ xpos + x->x_gui.x_h, ypos + x->x_gui.x_h, /* lower right */
+ x->x_gui.x_bcol, x);
+ /* LINE */
+ sys_vgui(".x%lx.c create line %d %d %d %d -width 3 -fill #%6.6x -capstyle round -tags %xKNOB\n",
+ canvas,
+ x1, /* x1 */
+ y1, /* y1 */
+ x2, /* x2 */
+ y2, /* y2 */
+ x->x_gui.x_fcol, /* color */
+ x);
+
+ sys_vgui(".x%lx.c create text %d %d -text {%s} -anchor w \
+ -font {%s %d bold} -fill #%6.6x -tags %xLABEL\n",
+ canvas, xpos+x->x_gui.x_ldx, ypos+x->x_gui.x_ldy,
+ strcmp(x->x_gui.x_lab->s_name, "empty")?x->x_gui.x_lab->s_name:"",
+ x->x_gui.x_font, x->x_gui.x_fontsize, x->x_gui.x_lcol, x);
+ if(!x->x_gui.x_fsf.x_snd_able)
+ sys_vgui(".x%lx.c create rectangle %d %d %d %d -tags %xOUT%d\n",
+ canvas,
+ xpos, ypos + x->x_gui.x_h+2,
+ xpos+7, ypos + x->x_gui.x_h+3,
+ x, 0);
+ if(!x->x_gui.x_fsf.x_rcv_able)
+ sys_vgui(".x%lx.c create rectangle %d %d %d %d -tags %xIN%d\n",
+ canvas,
+ xpos, ypos-2,
+ xpos+7, ypos-1,
+ x, 0);
+}
+
+static void knob_draw_move(t_knob *x, t_glist *glist)
+{
+ int xpos=text_xpix(&x->x_gui.x_obj, glist);
+ int ypos=text_ypix(&x->x_gui.x_obj, glist);
+ /* int r = ypos + x->x_gui.x_h - (x->x_val + 50)/100; */
+ t_canvas *canvas=glist_getcanvas(glist);
+ /* compute dial:*/
+ float radius = 0.5*(float)x->x_gui.x_h;
+ /* float angle = 7.0/36.0 + 34.0/36.0*2.0*M_PI*((float)x->x_val*0.01/(float)(x->x_gui.x_h)); */
+ double angle = 7.0/36.0 + 34.0/36.0*2.0*M_PI*( (double)x->x_val*0.01/(double)x->x_gui.x_h );
+ /* center point: */
+ int x1 = text_xpix(&x->x_gui.x_obj, glist) + radius;
+ int y1 = text_ypix(&x->x_gui.x_obj, glist) + radius;
+ int x2 = text_xpix(&x->x_gui.x_obj, glist) + radius + radius * sin( -angle);
+ int y2 = text_ypix(&x->x_gui.x_obj, glist) + radius + radius * cos( angle);
+
+
+
+ sys_vgui(".x%lx.c coords %xKNOB %d %d %d %d\n",
+ canvas, x,
+ x1, /* x1 */
+ y1, /* y1 */
+ x2, /* x2 */
+ y2 /* y2 */
+ );
+ /* post("knob: (%d, %d) (%d, %d)", x1,y1,x2,y2); */
+
+ sys_vgui(".x%lx.c coords %xBASE %d %d %d %d\n",
+ canvas, x,
+ xpos, ypos,
+ xpos + x->x_gui.x_h, ypos + x->x_gui.x_h);
+
+ sys_vgui(".x%lx.c coords %xBASE2 %d %d %d %d\n",
+ canvas, x,
+ xpos, ypos,
+ xpos + x->x_gui.x_h, ypos + x->x_gui.x_h);
+
+ sys_vgui(".x%lx.c coords %xLABEL %d %d\n",
+ canvas, x, xpos+x->x_gui.x_ldx, ypos+x->x_gui.x_ldy);
+ if(!x->x_gui.x_fsf.x_snd_able)
+ sys_vgui(".x%lx.c coords %xOUT%d %d %d %d %d\n",
+ canvas, x, 0,
+ xpos, ypos + x->x_gui.x_h+2,
+ xpos+7, ypos + x->x_gui.x_h+3);
+ if(!x->x_gui.x_fsf.x_rcv_able)
+ sys_vgui(".x%lx.c coords %xIN%d %d %d %d %d\n",
+ canvas, x, 0,
+ xpos, ypos-2,
+ xpos+7, ypos-1);
+}
+
+static void knob_draw_erase(t_knob* x,t_glist* glist)
+{
+ t_canvas *canvas=glist_getcanvas(glist);
+
+ sys_vgui(".x%lx.c delete %xBASE\n", canvas, x);
+ sys_vgui(".x%lx.c delete %xBASE2\n", canvas, x);
+ sys_vgui(".x%lx.c delete %xKNOB\n", canvas, x);
+ sys_vgui(".x%lx.c delete %xLABEL\n", canvas, x);
+ if(!x->x_gui.x_fsf.x_snd_able)
+ sys_vgui(".x%lx.c delete %xOUT%d\n", canvas, x, 0);
+ if(!x->x_gui.x_fsf.x_rcv_able)
+ sys_vgui(".x%lx.c delete %xIN%d\n", canvas, x, 0);
+}
+
+static void knob_draw_config(t_knob* x,t_glist* glist)
+{
+ t_canvas *canvas=glist_getcanvas(glist);
+
+ sys_vgui(".x%lx.c itemconfigure %xLABEL -font {%s %d bold} -fill #%6.6x -text {%s} \n",
+ canvas, x, x->x_gui.x_font, x->x_gui.x_fontsize,
+ x->x_gui.x_fsf.x_selected?IEM_GUI_COLOR_SELECTED:x->x_gui.x_lcol,
+ strcmp(x->x_gui.x_lab->s_name, "empty")?x->x_gui.x_lab->s_name:"");
+ sys_vgui(".x%lx.c itemconfigure %xKNOB -fill #%6.6x\n", canvas,
+ x, x->x_gui.x_fcol);
+ sys_vgui(".x%lx.c itemconfigure %xBASE2 -outline #%6.6x\n", canvas,
+ x, x->x_gui.x_fcol);
+ sys_vgui(".x%lx.c itemconfigure %xBASE -fill #%6.6x\n", canvas,
+ x, x->x_gui.x_bcol);
+}
+
+static void knob_draw_io(t_knob* x,t_glist* glist, int old_snd_rcv_flags)
+{
+ int xpos=text_xpix(&x->x_gui.x_obj, glist);
+ int ypos=text_ypix(&x->x_gui.x_obj, glist);
+ t_canvas *canvas=glist_getcanvas(glist);
+
+ if((old_snd_rcv_flags & IEM_GUI_OLD_SND_FLAG) && !x->x_gui.x_fsf.x_snd_able)
+ sys_vgui(".x%lx.c create rectangle %d %d %d %d -tags %xOUT%d\n",
+ canvas,
+ xpos, ypos + x->x_gui.x_h+2,
+ xpos+7, ypos + x->x_gui.x_h+3,
+ x, 0);
+ if(!(old_snd_rcv_flags & IEM_GUI_OLD_SND_FLAG) && x->x_gui.x_fsf.x_snd_able)
+ sys_vgui(".x%lx.c delete %xOUT%d\n", canvas, x, 0);
+ if((old_snd_rcv_flags & IEM_GUI_OLD_RCV_FLAG) && !x->x_gui.x_fsf.x_rcv_able)
+ sys_vgui(".x%lx.c create rectangle %d %d %d %d -tags %xIN%d\n",
+ canvas,
+ xpos, ypos-2,
+ xpos+7, ypos-1,
+ x, 0);
+ if(!(old_snd_rcv_flags & IEM_GUI_OLD_RCV_FLAG) && x->x_gui.x_fsf.x_rcv_able)
+ sys_vgui(".x%lx.c delete %xIN%d\n", canvas, x, 0);
+}
+
+static void knob_draw_select(t_knob *x, t_glist *glist)
+{
+ t_canvas *canvas=glist_getcanvas(glist);
+
+ if(x->x_gui.x_fsf.x_selected)
+ {
+ pd_bind(&x->x_gui.x_obj.ob_pd, iemgui_key_sym);
+ sys_vgui(".x%lx.c itemconfigure %xBASE2 -outline #%6.6x\n", canvas, x, IEM_GUI_COLOR_SELECTED);
+ sys_vgui(".x%lx.c itemconfigure %xBASE -fill #%6.6x\n", canvas, x, IEM_GUI_COLOR_SELECTED);
+ sys_vgui(".x%lx.c itemconfigure %xLABEL -fill #%6.6x\n", canvas, x, IEM_GUI_COLOR_SELECTED);
+ }
+ else
+ {
+ pd_unbind(&x->x_gui.x_obj.ob_pd, iemgui_key_sym);
+ sys_vgui(".x%lx.c itemconfigure %xBASE -fill #%6.6x\n", canvas, x, IEM_GUI_COLOR_NORMAL);
+ sys_vgui(".x%lx.c itemconfigure %xBASE2 -outline #%6.6x\n", canvas, x, x->x_gui.x_fcol);
+ sys_vgui(".x%lx.c itemconfigure %xLABEL -fill #%6.6x\n", canvas, x, x->x_gui.x_lcol);
+ }
+}
+
+void knob_draw(t_knob *x, t_glist *glist, int mode)
+{
+ if(mode == IEM_GUI_DRAW_MODE_UPDATE)
+ knob_draw_update(x, glist);
+ else if(mode == IEM_GUI_DRAW_MODE_MOVE)
+ knob_draw_move(x, glist);
+ else if(mode == IEM_GUI_DRAW_MODE_NEW)
+ knob_draw_new(x, glist);
+ else if(mode == IEM_GUI_DRAW_MODE_SELECT)
+ knob_draw_select(x, glist);
+ else if(mode == IEM_GUI_DRAW_MODE_ERASE)
+ knob_draw_erase(x, glist);
+ else if(mode == IEM_GUI_DRAW_MODE_CONFIG)
+ knob_draw_config(x, glist);
+ else if(mode >= IEM_GUI_DRAW_MODE_IO)
+ knob_draw_io(x, glist, mode - IEM_GUI_DRAW_MODE_IO);
+}
+
+/* ------------------------ knob widgetbehaviour----------------------------- */
+
+
+static void knob_getrect(t_gobj *z, t_glist *glist,
+ int *xp1, int *yp1, int *xp2, int *yp2)
+{
+ t_knob* x = (t_knob*)z;
+
+ *xp1 = text_xpix(&x->x_gui.x_obj, glist);
+ *yp1 = text_ypix(&x->x_gui.x_obj, glist) - 2;
+ *xp2 = *xp1 + x->x_gui.x_h;
+ *yp2 = *yp1 + x->x_gui.x_h + 5;
+}
+
+static void knob_save(t_gobj *z, t_binbuf *b)
+{
+ t_knob *x = (t_knob *)z;
+ int bflcol[3], *ip1, *ip2;
+ t_symbol *srl[3];
+
+ iemgui_save(&x->x_gui, srl, bflcol);
+ ip1 = (int *)(&x->x_gui.x_isa);
+ ip2 = (int *)(&x->x_gui.x_fsf);
+ binbuf_addv(b, "ssiisiiffiisssiiiiiiiii", gensym("#X"),gensym("obj"),
+ (t_int)x->x_gui.x_obj.te_xpix, (t_int)x->x_gui.x_obj.te_ypix,
+ atom_getsymbol(binbuf_getvec(x->x_gui.x_obj.te_binbuf)),
+ x->x_gui.x_h, x->x_gui.x_h,
+ (float)x->x_min, (float)x->x_max,
+ x->x_lin0_log1, (*ip1)&IEM_INIT_ARGS_ALL,
+ srl[0], srl[1], srl[2],
+ x->x_gui.x_ldx, x->x_gui.x_ldy,
+ (*ip2)&IEM_FSTYLE_FLAGS_ALL, x->x_gui.x_fontsize,
+ bflcol[0], bflcol[1], bflcol[2],
+ x->x_val, x->x_steady);
+ binbuf_addv(b, ";");
+}
+
+void knob_check_height(t_knob *x, int h)
+{
+ if(h < IEM_SL_MINSIZE)
+ h = IEM_SL_MINSIZE;
+ x->x_gui.x_h = h;
+ if(x->x_val > (x->x_gui.x_h*100 - 100))
+ {
+ x->x_pos = x->x_gui.x_h*100 - 100;
+ x->x_val = x->x_pos;
+ }
+ if(x->x_lin0_log1)
+ x->x_k = log(x->x_max/x->x_min)/(double)(x->x_gui.x_h - 1);
+ else
+ x->x_k = (x->x_max - x->x_min)/(double)(x->x_gui.x_h - 1);
+}
+
+void knob_check_minmax(t_knob *x, double min, double max)
+{
+ if(x->x_lin0_log1)
+ {
+ if((min == 0.0)&&(max == 0.0))
+ max = 1.0;
+ if(max > 0.0)
+ {
+ if(min <= 0.0)
+ min = 0.01*max;
+ }
+ else
+ {
+ if(min > 0.0)
+ max = 0.01*min;
+ }
+ }
+ x->x_min = min;
+ x->x_max = max;
+ if(x->x_min > x->x_max) /* bugfix */
+ x->x_gui.x_isa.x_reverse = 1;
+ else
+ x->x_gui.x_isa.x_reverse = 0;
+ if(x->x_lin0_log1)
+ x->x_k = log(x->x_max/x->x_min)/(double)(x->x_gui.x_h - 1);
+ else
+ x->x_k = (x->x_max - x->x_min)/(double)(x->x_gui.x_h - 1);
+}
+
+static void knob_properties(t_gobj *z, t_glist *owner)
+{
+ t_knob *x = (t_knob *)z;
+ char buf[800];
+ t_symbol *srl[3];
+
+ iemgui_properties(&x->x_gui, srl);
+
+ sprintf(buf, "pdtk_iemgui_dialog %%s KNOB \
+ --------dimensions(pix)(pix):-------- %d %d NONE: %d %d height: \
+ -----------output-range:----------- %g left: %g right: %g \
+ %d lin log %d %d empty %d \
+ %s %s \
+ %s %d %d \
+ %d %d \
+ %d %d %d\n",
+ x->x_gui.x_w, IEM_SL_MINSIZE, x->x_gui.x_h, IEM_GUI_MINSIZE,
+ x->x_min, x->x_max, 0.0,/*no_schedule*/
+ x->x_lin0_log1, x->x_gui.x_isa.x_loadinit, x->x_steady, -1,/*no multi, but iem-characteristic*/
+ srl[0]->s_name, srl[1]->s_name,
+ srl[2]->s_name, x->x_gui.x_ldx, x->x_gui.x_ldy,
+ x->x_gui.x_fsf.x_font_style, x->x_gui.x_fontsize,
+ 0xffffff & x->x_gui.x_bcol, 0xffffff & x->x_gui.x_fcol, 0xffffff & x->x_gui.x_lcol);
+ gfxstub_new(&x->x_gui.x_obj.ob_pd, x, buf);
+}
+
+static void knob_bang(t_knob *x)
+{
+ double out;
+
+ if(x->x_lin0_log1)
+ out = x->x_min*exp(x->x_k*(double)(x->x_val)*0.01);
+ else
+ out = (double)(x->x_val)*0.01*x->x_k + x->x_min;
+ if((out < 1.0e-10)&&(out > -1.0e-10))
+ out = 0.0;
+ //post("knob_bang -- x_k: %f", x->x_k);
+
+ outlet_float(x->x_gui.x_obj.ob_outlet, out);
+ if(x->x_gui.x_fsf.x_snd_able && x->x_gui.x_snd->s_thing)
+ pd_float(x->x_gui.x_snd->s_thing, out);
+}
+
+static void knob_dialog(t_knob *x, t_symbol *s, int argc, t_atom *argv)
+{
+ t_symbol *srl[3];
+ int w = (int)atom_getintarg(0, argc, argv);
+ int h = (int)atom_getintarg(1, argc, argv);
+ double min = (double)atom_getfloatarg(2, argc, argv);
+ double max = (double)atom_getfloatarg(3, argc, argv);
+ int lilo = (int)atom_getintarg(4, argc, argv);
+ int steady = (int)atom_getintarg(17, argc, argv);
+ int sr_flags;
+
+ if(lilo != 0) lilo = 1;
+ x->x_lin0_log1 = lilo;
+ if(steady)
+ x->x_steady = 1;
+ else
+ x->x_steady = 0;
+ sr_flags = iemgui_dialog(&x->x_gui, srl, argc, argv);
+ x->x_gui.x_h = iemgui_clip_size(w);
+ knob_check_height(x, h);
+ knob_check_minmax(x, min, max);
+ (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_CONFIG);
+ (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_IO + sr_flags);
+ (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_MOVE);
+ canvas_fixlinesfor(x->x_gui.x_glist, (t_text*)x);
+}
+
+static void knob_motion(t_knob *x, t_floatarg dx, t_floatarg dy)
+{
+ int old = x->x_val;
+
+ if(x->x_gui.x_fsf.x_finemoved)
+ x->x_pos -= (int)dy;
+ else
+ x->x_pos -= 100*(int)dy;
+ x->x_val = x->x_pos;
+ if(x->x_val > (100*x->x_gui.x_h - 100))
+ {
+ x->x_val = 100*x->x_gui.x_h - 100;
+ x->x_pos += 50;
+ x->x_pos -= x->x_pos%100;
+ }
+ if(x->x_val < 0)
+ {
+ x->x_val = 0;
+ x->x_pos -= 50;
+ x->x_pos -= x->x_pos%100;
+ }
+ if(old != x->x_val)
+ {
+ (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_UPDATE);
+ knob_bang(x);
+ }
+}
+
+static void knob_click(t_knob *x, t_floatarg xpos, t_floatarg ypos,
+ t_floatarg shift, t_floatarg ctrl, t_floatarg alt)
+{
+ if(!x->x_steady)
+ x->x_val = (int)(100.0 * (x->x_gui.x_h + text_ypix(&x->x_gui.x_obj, x->x_gui.x_glist) - ypos));
+ if(x->x_val > (100*x->x_gui.x_h - 100))
+ x->x_val = 100*x->x_gui.x_h - 100;
+ if(x->x_val < 0)
+ x->x_val = 0;
+ x->x_pos = x->x_val;
+ (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_UPDATE);
+ knob_bang(x);
+ glist_grab(x->x_gui.x_glist, &x->x_gui.x_obj.te_g, (t_glistmotionfn)knob_motion,
+ 0, xpos, ypos);
+}
+
+static int knob_newclick(t_gobj *z, struct _glist *glist,
+ int xpix, int ypix, int shift, int alt, int dbl, int doit)
+{
+ t_knob* x = (t_knob *)z;
+
+ if(doit)
+ {
+ knob_click( x, (t_floatarg)xpix, (t_floatarg)ypix, (t_floatarg)shift,
+ 0, (t_floatarg)alt);
+ if(shift)
+ x->x_gui.x_fsf.x_finemoved = 1;
+ else
+ x->x_gui.x_fsf.x_finemoved = 0;
+ }
+ return (1);
+}
+
+static void knob_set(t_knob *x, t_floatarg f)
+{
+ double g;
+
+ if(x->x_gui.x_isa.x_reverse) /* bugfix */
+ {
+ if(f > x->x_min)
+ f = x->x_min;
+ if(f < x->x_max)
+ f = x->x_max;
+ }
+ else
+ {
+ if(f > x->x_max)
+ f = x->x_max;
+ if(f < x->x_min)
+ f = x->x_min;
+ }
+ if(x->x_lin0_log1)
+ g = log(f/x->x_min)/x->x_k;
+ else
+ g = (f - x->x_min) / x->x_k;
+ //post("knob_set f: %f", f );
+ //post("knob_set g: %f", g );
+ x->x_val = (int)(100.0*g + 0.49999);
+ // x->x_val = (int)(100.0*g);
+ x->x_pos = x->x_val;
+ //post("knob_set x_val: %f", x->x_val );
+ (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_UPDATE);
+}
+
+static void knob_float(t_knob *x, t_floatarg f)
+{
+ /* post("knob_set infloat f: %f", f ); */
+ knob_set(x, f);
+ if(x->x_gui.x_fsf.x_put_in2out)
+ knob_bang(x);
+}
+
+static void knob_size(t_knob *x, t_symbol *s, int ac, t_atom *av)
+{
+ x->x_gui.x_h = iemgui_clip_size((int)atom_getintarg(0, ac, av));
+ if(ac > 1)
+ knob_check_height(x, (int)atom_getintarg(1, ac, av));
+ iemgui_size((void *)x, &x->x_gui);
+}
+
+static void knob_delta(t_knob *x, t_symbol *s, int ac, t_atom *av)
+{iemgui_delta((void *)x, &x->x_gui, s, ac, av);}
+
+static void knob_pos(t_knob *x, t_symbol *s, int ac, t_atom *av)
+{iemgui_pos((void *)x, &x->x_gui, s, ac, av);}
+
+static void knob_range(t_knob *x, t_symbol *s, int ac, t_atom *av)
+{
+ knob_check_minmax(x, (double)atom_getfloatarg(0, ac, av),
+ (double)atom_getfloatarg(1, ac, av));
+}
+
+static void knob_color(t_knob *x, t_symbol *s, int ac, t_atom *av)
+{iemgui_color((void *)x, &x->x_gui, s, ac, av);}
+
+static void knob_send(t_knob *x, t_symbol *s)
+{iemgui_send(x, &x->x_gui, s);}
+
+static void knob_receive(t_knob *x, t_symbol *s)
+{iemgui_receive(x, &x->x_gui, s);}
+
+static void knob_label(t_knob *x, t_symbol *s)
+{iemgui_label((void *)x, &x->x_gui, s);}
+
+static void knob_label_pos(t_knob *x, t_symbol *s, int ac, t_atom *av)
+{iemgui_label_pos((void *)x, &x->x_gui, s, ac, av);}
+
+static void knob_label_font(t_knob *x, t_symbol *s, int ac, t_atom *av)
+{iemgui_label_font((void *)x, &x->x_gui, s, ac, av);}
+
+static void knob_log(t_knob *x)
+{
+ x->x_lin0_log1 = 1;
+ knob_check_minmax(x, x->x_min, x->x_max);
+}
+
+static void knob_lin(t_knob *x)
+{
+ x->x_lin0_log1 = 0;
+ x->x_k = (x->x_max - x->x_min)/(double)(x->x_gui.x_h - 1);
+}
+
+static void knob_init(t_knob *x, t_floatarg f)
+{
+ x->x_gui.x_isa.x_loadinit = (f==0.0)?0:1;
+}
+
+static void knob_steady(t_knob *x, t_floatarg f)
+{
+ x->x_steady = (f==0.0)?0:1;
+}
+
+static void knob_loadbang(t_knob *x)
+{
+ /* WARNING: this is a kludge to get this object building on
+ Windows. Currently, the linker fails on the symbol
+ "sys_noloadbang". <hans@at.or.at>
+ */
+#ifdef _WIN32
+ if(x->x_gui.x_isa.x_loadinit)
+#else
+ if(!sys_noloadbang && x->x_gui.x_isa.x_loadinit)
+#endif
+ {
+ (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_UPDATE);
+ knob_bang(x);
+ }
+}
+
+/*
+static void knob_list(t_knob *x, t_symbol *s, int ac, t_atom *av)
+{
+ int l=iemgui_list((void *)x, &x->x_gui, s, ac, av);
+
+ if(l < 0)
+ {
+ if(IS_A_FLOAT(av,0))
+ knob_float(x, atom_getfloatarg(0, ac, av));
+ }
+ else if(l > 0)
+ {
+ (*x->x_gui.x_draw)(x, x->x_gui.x_glist, IEM_GUI_DRAW_MODE_MOVE);
+ canvas_fixlinesfor(x->x_gui.x_glist, (t_text*)x);
+ }
+}
+*/
+
+static void *knob_new(t_symbol *s, int argc, t_atom *argv)
+{
+ t_knob *x = (t_knob *)pd_new(knob_class);
+ int bflcol[]={-262144, -1, -1};
+ t_symbol *srl[3];
+ int w=IEM_KNOB_DEFAULTSIZE, h=IEM_KNOB_DEFAULTSIZE;
+ int lilo=0, ldx=0, ldy=-8;
+ int fs=8, v=0, steady=1;
+ double min=0.0, max=(double)(IEM_SL_DEFAULTSIZE-1);
+ char str[144];
+
+ //srl[0] = gensym("empty");
+ //srl[1] = gensym("empty");
+ //srl[2] = gensym("empty");
+
+ iem_inttosymargs(&x->x_gui.x_isa, 0);
+ iem_inttofstyle(&x->x_gui.x_fsf, 0);
+
+
+ if(((argc == 17)||(argc == 18))&&IS_A_FLOAT(argv,0)&&IS_A_FLOAT(argv,1)
+ &&IS_A_FLOAT(argv,2)&&IS_A_FLOAT(argv,3)
+ &&IS_A_FLOAT(argv,4)&&IS_A_FLOAT(argv,5)
+ &&(IS_A_SYMBOL(argv,6)||IS_A_FLOAT(argv,6))
+ &&(IS_A_SYMBOL(argv,7)||IS_A_FLOAT(argv,7))
+ &&(IS_A_SYMBOL(argv,8)||IS_A_FLOAT(argv,8))
+ &&IS_A_FLOAT(argv,9)&&IS_A_FLOAT(argv,10)
+ &&IS_A_FLOAT(argv,11)&&IS_A_FLOAT(argv,12)&&IS_A_FLOAT(argv,13)
+ &&IS_A_FLOAT(argv,14)&&IS_A_FLOAT(argv,15)&&IS_A_FLOAT(argv,16))
+ {
+ w = (int)atom_getintarg(0, argc, argv);
+ h = (int)atom_getintarg(1, argc, argv);
+ min = (double)atom_getfloatarg(2, argc, argv);
+ max = (double)atom_getfloatarg(3, argc, argv);
+ lilo = (int)atom_getintarg(4, argc, argv);
+ iem_inttosymargs(&x->x_gui.x_isa, atom_getintarg(5, argc, argv));
+ iemgui_new_getnames(&x->x_gui, 6, argv);
+ ldx = (int)atom_getintarg(9, argc, argv);
+ ldy = (int)atom_getintarg(10, argc, argv);
+ iem_inttofstyle(&x->x_gui.x_fsf, atom_getintarg(11, argc, argv));
+ fs = (int)atom_getintarg(12, argc, argv);
+ bflcol[0] = (int)atom_getintarg(13, argc, argv);
+ bflcol[1] = (int)atom_getintarg(14, argc, argv);
+ bflcol[2] = (int)atom_getintarg(15, argc, argv);
+ v = (int)atom_getintarg(16, argc, argv);
+ }
+ else iemgui_new_getnames(&x->x_gui, 6, 0);
+ if((argc == 18)&&IS_A_FLOAT(argv,17))
+ steady = (int)atom_getintarg(17, argc, argv);
+
+ x->x_gui.x_draw = (t_iemfunptr)knob_draw;
+
+ x->x_gui.x_fsf.x_snd_able = 1;
+ x->x_gui.x_fsf.x_rcv_able = 1;
+
+ x->x_gui.x_glist = (t_glist *)canvas_getcurrent();
+ if(x->x_gui.x_isa.x_loadinit)
+ x->x_val = v;
+ else
+ x->x_val = 0;
+ x->x_pos = x->x_val;
+ if(lilo != 0) lilo = 1;
+ x->x_lin0_log1 = lilo;
+ if(steady != 0) steady = 1;
+ x->x_steady = steady;
+ if (!strcmp(x->x_gui.x_snd->s_name, "empty"))
+ x->x_gui.x_fsf.x_snd_able = 0;
+ if (!strcmp(x->x_gui.x_rcv->s_name, "empty"))
+ x->x_gui.x_fsf.x_rcv_able = 0;
+ if(x->x_gui.x_fsf.x_font_style == 1) strcpy(x->x_gui.x_font, "helvetica");
+ else if(x->x_gui.x_fsf.x_font_style == 2) strcpy(x->x_gui.x_font, "times");
+ else { x->x_gui.x_fsf.x_font_style = 0;
+ strcpy(x->x_gui.x_font, "courier"); }
+ if(x->x_gui.x_fsf.x_rcv_able)
+ pd_bind(&x->x_gui.x_obj.ob_pd, x->x_gui.x_rcv);
+ x->x_gui.x_ldx = ldx;
+ x->x_gui.x_ldy = ldy;
+ if(fs < 4)
+ fs = 4;
+ x->x_gui.x_fontsize = fs;
+ x->x_gui.x_h = iemgui_clip_size(h);
+ knob_check_height(x, w);
+ knob_check_minmax(x, min, max);
+ iemgui_all_colfromload(&x->x_gui, bflcol);
+ //x->x_thick = 0;
+ iemgui_verify_snd_ne_rcv(&x->x_gui);
+ outlet_new(&x->x_gui.x_obj, &s_float);
+ return (x);
+}
+
+
+
+static void knob_free(t_knob *x)
+{
+ if(x->x_gui.x_fsf.x_selected)
+ pd_unbind(&x->x_gui.x_obj.ob_pd, iemgui_key_sym);
+ if(x->x_gui.x_fsf.x_rcv_able)
+ pd_unbind(&x->x_gui.x_obj.ob_pd, x->x_gui.x_rcv);
+ gfxstub_deleteforkey(x);
+}
+
+void knob_setup(void)
+{
+ knob_class = class_new(gensym("knob"), (t_newmethod)knob_new,
+ (t_method)knob_free, sizeof(t_knob), 0, A_GIMME, 0);
+ class_addcreator((t_newmethod)knob_new, gensym("knob"), A_GIMME, 0);
+ class_addbang(knob_class,knob_bang);
+ class_addfloat(knob_class,knob_float);
+
+ /* class_addlist(knob_class, knob_list); */
+ class_addmethod(knob_class, (t_method)knob_click, gensym("click"),
+ A_FLOAT, A_FLOAT, A_FLOAT, A_FLOAT, A_FLOAT, 0);
+ class_addmethod(knob_class, (t_method)knob_motion, gensym("motion"),
+ A_FLOAT, A_FLOAT, 0);
+ class_addmethod(knob_class, (t_method)knob_dialog, gensym("dialog"),
+ A_GIMME, 0);
+ class_addmethod(knob_class, (t_method)knob_loadbang, gensym("loadbang"), 0);
+ class_addmethod(knob_class, (t_method)knob_set, gensym("set"), A_FLOAT, 0);
+ class_addmethod(knob_class, (t_method)knob_size, gensym("size"), A_GIMME, 0);
+ class_addmethod(knob_class, (t_method)knob_delta, gensym("delta"), A_GIMME, 0);
+ class_addmethod(knob_class, (t_method)knob_pos, gensym("pos"), A_GIMME, 0);
+ class_addmethod(knob_class, (t_method)knob_range, gensym("range"), A_GIMME, 0);
+ class_addmethod(knob_class, (t_method)knob_color, gensym("color"), A_GIMME, 0);
+ class_addmethod(knob_class, (t_method)knob_send, gensym("send"), A_DEFSYM, 0);
+ class_addmethod(knob_class, (t_method)knob_receive, gensym("receive"), A_DEFSYM, 0);
+ class_addmethod(knob_class, (t_method)knob_label, gensym("label"), A_DEFSYM, 0);
+ class_addmethod(knob_class, (t_method)knob_label_pos, gensym("label_pos"), A_GIMME, 0);
+ class_addmethod(knob_class, (t_method)knob_label_font, gensym("label_font"), A_GIMME, 0);
+ class_addmethod(knob_class, (t_method)knob_log, gensym("log"), 0);
+ class_addmethod(knob_class, (t_method)knob_lin, gensym("lin"), 0);
+ class_addmethod(knob_class, (t_method)knob_init, gensym("init"), A_FLOAT, 0);
+ class_addmethod(knob_class, (t_method)knob_steady, gensym("steady"), A_FLOAT, 0);
+ if(!iemgui_key_sym)
+ iemgui_key_sym = gensym("#keyname");
+ knob_widgetbehavior.w_getrectfn = knob_getrect;
+ knob_widgetbehavior.w_displacefn = iemgui_displace;
+ knob_widgetbehavior.w_selectfn = iemgui_select;
+ knob_widgetbehavior.w_activatefn = NULL;
+ knob_widgetbehavior.w_deletefn = iemgui_delete;
+ knob_widgetbehavior.w_visfn = iemgui_vis;
+ knob_widgetbehavior.w_clickfn = knob_newclick;
+#if PD_MINOR_VERSION < 37 /* TODO: remove old behaviour in exactly 2 months from now */
+ knob_widgetbehavior.w_propertiesfn = knob_properties;;
+ knob_widgetbehavior.w_savefn = knob_save;
+#else
+ class_setpropertiesfn(knob_class, &knob_properties);
+ class_setsavefn(knob_class, &knob_save);
+#endif
+ class_setwidget(knob_class, &knob_widgetbehavior);
+ class_sethelpsymbol(knob_class, gensym("knob"));
+}