From 57045df5fe3ec557e57dc7434ac1a07b5521bffc Mon Sep 17 00:00:00 2001
From: Guenter  Geiger <ggeiger@users.sourceforge.net>
Date: Mon, 29 Jul 2002 17:06:19 +0000
Subject: This commit was generated by cvs2svn to compensate for changes in
 r58, which included commits to RCS files with non-trunk default branches.

svn path=/trunk/; revision=59
---
 pd/src/g_rtext.c | 478 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 478 insertions(+)
 create mode 100644 pd/src/g_rtext.c

(limited to 'pd/src/g_rtext.c')

diff --git a/pd/src/g_rtext.c b/pd/src/g_rtext.c
new file mode 100644
index 00000000..4b48dcc0
--- /dev/null
+++ b/pd/src/g_rtext.c
@@ -0,0 +1,478 @@
+/* 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.  */
+
+/* changes by Thomas Musil IEM KUG Graz Austria 2001 */
+/* have to insert gui-objects into editor-list */
+/* all changes are labeled with      iemlib      */
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <ctype.h>
+#include "m_imp.h"
+#include "g_canvas.h"
+#include "t_tk.h"
+
+#define LMARGIN 1
+#define RMARGIN 1
+#define TMARGIN 2
+#define BMARGIN 2
+
+#define SEND_FIRST 1
+#define SEND_UPDATE 2
+#define SEND_CHECK 0
+
+static void rtext_senditup(t_rtext *x, int action, int *widthp, int *heightp,
+    int *indexp);
+
+struct _rtext
+{
+    char *x_buf;
+    int x_bufsize;
+    int x_selstart;
+    int x_selend;
+    int x_active;
+    int x_dragfrom;
+    int x_height;
+    int x_drawnwidth;
+    int x_drawnheight;
+    t_text *x_text;
+    t_glist *x_glist;
+    char x_tag[50];
+    struct _rtext *x_next;
+};
+
+t_rtext *rtext_new(t_glist *glist, t_text *who, t_rtext *next, int senditup)
+{
+    t_rtext *x = (t_rtext *)getbytes(sizeof *x);
+    int w = 0, h = 0, indx;
+    x->x_height = -1;
+    x->x_text = who;
+    x->x_glist = glist;
+    x->x_next = glist->gl_editor->e_rtext;
+    x->x_selstart = x->x_selend = x->x_active =
+    	x->x_drawnwidth = x->x_drawnheight = 0;
+    binbuf_gettext(who->te_binbuf, &x->x_buf, &x->x_bufsize);
+    glist->gl_editor->e_rtext = x;
+    sprintf(x->x_tag, ".x%x.t%x", (t_int)glist_getcanvas(x->x_glist),
+    	(t_int)x);
+    if (senditup)
+    	rtext_senditup(x, SEND_FIRST, &w, &h, &indx);
+    return (x);
+}
+
+/* iemlib version (now incorporated into rtext_new() via the "senditup" arg) */
+
+t_rtext *rtext_new_without_senditup(t_glist *glist, t_text *who, t_rtext *next)
+{
+    return (rtext_new(glist, who, next, 0));
+}
+
+static t_rtext *rtext_entered;
+
+void rtext_free(t_rtext *x)
+{
+    sys_vgui(".x%x.c delete %s\n", glist_getcanvas(x->x_glist),
+    	x->x_tag);
+    if (x->x_glist->gl_editor->e_textedfor == x)
+    	x->x_glist->gl_editor->e_textedfor = 0;
+    if (x->x_glist->gl_editor->e_rtext == x)
+    	x->x_glist->gl_editor->e_rtext = x->x_next;
+    else
+    {
+    	t_rtext *e2;
+    	for (e2 = x->x_glist->gl_editor->e_rtext; e2; e2 = e2->x_next)
+    	    if (e2->x_next == x)
+    	{
+    	    e2->x_next = x->x_next;
+    	    break;
+    	}
+    }
+    if (rtext_entered == x) rtext_entered = 0;
+    freebytes(x->x_buf, x->x_bufsize);
+    freebytes(x, sizeof *x);
+}
+
+char *rtext_gettag(t_rtext *x)
+{
+    return (x->x_tag);
+}
+
+void rtext_gettext(t_rtext *x, char **buf, int *bufsize)
+{
+    *buf = x->x_buf;
+    *bufsize = x->x_bufsize;
+}
+
+
+/* LATER deal with tcl-significant characters */
+
+static int firstone(char *s, int c, int n)
+{
+    char *s2 = s + n;
+    int i = 0;
+    while (s != s2)
+    {
+    	if (*s == c) return (i);
+    	i++;
+    	s++;
+    }
+    return (-1);
+}
+
+static int lastone(char *s, int c, int n)
+{
+    char *s2 = s + n;
+    while (s2 != s)
+    {
+    	s2--;
+    	n--;
+    	if (*s2 == c) return (n);
+    }
+    return (-1);
+}
+
+    /* the following routine computes line breaks and carries out
+    some action which could be:
+    	SEND_FIRST - draw the box  for the first time
+	SEND_UPDATE - redraw the updated box
+	otherwise - don't draw, just calculate.
+    Called with *widthp and *heightpas coordinates of
+    a test point, the routine reports the index of the character found
+    there in *indexp.  *widthp and *heightp are set to the width and height
+    of the entire text in pixels.
+    */
+
+    /* LATER get this and sys_vgui to work together properly,
+    	breaking up messages as needed.  As of now, there's
+    	a limit of 1950 characters, imposed by sys_vgui(). */
+#define UPBUFSIZE 4000
+#define BOXWIDTH 60
+
+static void rtext_senditup(t_rtext *x, int action, int *widthp, int *heightp,
+    int *indexp)
+{
+    float dispx, dispy;
+    char tempbuf[UPBUFSIZE], *tp = tempbuf, *bp = x->x_buf;
+    int outchars, inchars = x->x_bufsize, nlines = 0, ncolumns = 0,
+    	pixwide, pixhigh;
+    int font = glist_getfont(x->x_glist);
+    int fontwidth = sys_fontwidth(font), fontheight = sys_fontheight(font);
+    int findx = (*widthp + (fontwidth/2)) / fontwidth,
+    	findy = *heightp / fontheight;
+    int reportedindex = 0;
+    t_canvas *canvas = glist_getcanvas(x->x_glist);
+    int widthspec = x->x_text->te_width;
+    int widthlimit = (widthspec ? widthspec : BOXWIDTH);
+    while (inchars)
+    {
+    	int maxindex = (inchars > widthlimit ? widthlimit : inchars);
+    	int eatchar = 1;
+    	int foundit = firstone(bp, '\n', maxindex);
+    	if (foundit < 0)
+    	{
+    	    if (inchars > widthlimit)
+    	    {
+    		foundit = lastone(bp, ' ', maxindex);
+    		if (foundit < 0)
+    		{
+    	    	    foundit = maxindex;
+    	    	    eatchar = 0;
+    		}
+   	    }
+   	    else
+   	    {
+   	    	foundit = inchars;
+   	    	eatchar = 0;
+   	    }
+   	}
+	if (nlines == findy)
+	{
+	    int actualx = (findx < 0 ? 0 :
+	    	(findx > foundit ? foundit : findx));
+	    *indexp = (bp - x->x_buf) + actualx;
+	    reportedindex = 1;
+	}
+   	strncpy(tp, bp, foundit);
+    	tp += foundit;
+    	bp += (foundit + eatchar);
+    	inchars -= (foundit + eatchar);
+    	if (inchars) *tp++ = '\n';
+    	if (foundit > ncolumns) ncolumns = foundit;
+    	nlines++;
+    }
+    outchars = tp - tempbuf;
+    if (outchars > 1950) outchars = 1950;
+    if (!reportedindex)
+    	*indexp = outchars;
+    dispx = text_xpix(x->x_text, x->x_glist);
+    dispy = text_ypix(x->x_text, x->x_glist);
+    if (nlines < 1) nlines = 1;
+    if (!widthspec)
+    {
+    	while (ncolumns < 3)
+    	{
+    	    tempbuf[outchars++] = ' ';
+    	    ncolumns++;
+    	}
+    }
+    else ncolumns = widthspec;
+    pixwide = ncolumns * fontwidth + (LMARGIN + RMARGIN);
+    pixhigh = nlines * fontheight + (TMARGIN + BMARGIN);
+
+    if (action == SEND_FIRST)
+    	sys_vgui("pdtk_text_new .x%x.c %s %f %f {%.*s} %d %s\n",
+	    canvas, x->x_tag,
+	    dispx + LMARGIN, dispy + TMARGIN,
+	    outchars, tempbuf, sys_hostfontsize(font),
+	    (glist_isselected(x->x_glist,
+	    	&x->x_glist->gl_gobj)? "blue" : "black"));
+    else if (action == SEND_UPDATE)
+    {
+    	sys_vgui("pdtk_text_set .x%x.c %s {%.*s}\n",
+    	    canvas, x->x_tag, outchars, tempbuf);
+    	if (pixwide != x->x_drawnwidth || pixhigh != x->x_drawnheight) 
+	    text_drawborder(x->x_text, x->x_glist, x->x_tag,
+	    	pixwide, pixhigh, 0);
+    	if (x->x_active)
+	{
+    	    if (x->x_selend > x->x_selstart)
+	    {
+    		sys_vgui(".x%x.c select from %s %d\n", canvas, 
+    	    	    x->x_tag, x->x_selstart);
+    		sys_vgui(".x%x.c select to %s %d\n", canvas, 
+    	    	    x->x_tag, x->x_selend);
+	    	sys_vgui(".x%x.c focus \"\"\n", canvas);	
+    	    }
+	    else
+	    {
+    		sys_vgui(".x%x.c select clear\n", canvas);
+	    	sys_vgui(".x%x.c icursor %s %d\n", canvas, x->x_tag,
+		    x->x_selstart);
+	    	sys_vgui(".x%x.c focus %s\n", canvas, x->x_tag);	
+	    }
+	}
+    }
+    x->x_drawnwidth = pixwide;
+    x->x_drawnheight = pixhigh;
+    
+    *widthp = pixwide;
+    *heightp = pixhigh;
+}
+
+void rtext_retext(t_rtext *x)
+{
+    int w = 0, h = 0, indx;
+    t_text *text = x->x_text;
+    t_freebytes(x->x_buf, x->x_bufsize);
+    binbuf_gettext(text->te_binbuf, &x->x_buf, &x->x_bufsize);
+    	/* special case: for number boxes, try to pare the number down
+	to the specified width of the box. */
+    if (text->te_width > 0 && text->te_type == T_ATOM &&
+    	x->x_bufsize > text->te_width)
+    {
+    	t_atom *atomp = binbuf_getvec(text->te_binbuf);
+	int natom = binbuf_getnatom(text->te_binbuf);
+	int bufsize = x->x_bufsize;
+	if (natom == 1 && atomp->a_type == A_FLOAT)
+	{
+	    	/* try to reduce size by dropping decimal digits */
+	    int wantreduce = bufsize - text->te_width;
+	    char *decimal = 0, *nextchar, *ebuf = x->x_buf + bufsize,
+		*s1, *s2;
+	    int ndecimals;
+	    for (decimal = x->x_buf; decimal < ebuf; decimal++)
+	    	if (*decimal == '.')
+		    break;
+	    if (decimal >= ebuf)
+	    	goto giveup;
+	    for (nextchar = decimal + 1; nextchar < ebuf; nextchar++)
+	    	if (*nextchar < '0' || *nextchar > '9')
+		    break;
+	    if (nextchar - decimal - 1 < wantreduce)
+	    	goto giveup;
+	    for (s1 = nextchar - wantreduce, s2 = s1 + wantreduce;
+	    	s2 < ebuf; s1++, s2++)
+		    *s1 = *s2;
+	    t_resizebytes(x->x_buf, bufsize, text->te_width);
+	    bufsize = text->te_width;
+	    goto done;
+	giveup:
+		/* give up and bash it to "+" or "-" */
+	    x->x_buf[0] = (atomp->a_w.w_float < 0 ? '-' : '+');
+	    t_resizebytes(x->x_buf, bufsize, 1);
+	    bufsize = 1;
+	}
+	else if (bufsize > text->te_width)
+	{
+	    x->x_buf[text->te_width - 1] = '>';
+	    t_resizebytes(x->x_buf, bufsize, text->te_width);
+	    bufsize = text->te_width;
+	}
+    done:
+	x->x_bufsize = bufsize;
+    }
+    rtext_senditup(x, SEND_UPDATE, &w, &h, &indx);
+}
+
+/* find the rtext that goes with a text item */
+t_rtext *glist_findrtext(t_glist *gl, t_text *who)
+{
+    t_rtext *x = gl->gl_editor->e_rtext;
+    while (x && x->x_text != who) x = x->x_next;
+    if (!x) bug("glist_findrtext");
+    return (x);
+}
+
+int rtext_width(t_rtext *x)
+{
+    int w = 0, h = 0, indx;
+    rtext_senditup(x, SEND_CHECK, &w, &h, &indx);
+    return (w);
+}
+
+int rtext_height(t_rtext *x)
+{
+    int w = 0, h = 0, indx;
+    rtext_senditup(x, SEND_CHECK, &w, &h, &indx);
+    return (h);
+}
+
+void rtext_displace(t_rtext *x, int dx, int dy)
+{
+    sys_vgui(".x%x.c move %s %d %d\n", glist_getcanvas(x->x_glist), 
+    	x->x_tag, dx, dy);
+}
+
+void rtext_select(t_rtext *x, int state)
+{
+    t_glist *glist = x->x_glist;
+    t_canvas *canvas = glist_getcanvas(glist);
+    sys_vgui(".x%x.c itemconfigure %s -fill %s\n", canvas, 
+    	x->x_tag, (state? "blue" : "black"));
+    canvas_editing = canvas;
+}
+
+void rtext_activate(t_rtext *x, int state)
+{
+    int w = 0, h = 0, indx;
+    t_glist *glist = x->x_glist;
+    t_canvas *canvas = glist_getcanvas(glist);
+    if (state)
+    {
+	sys_vgui(".x%x.c focus %s\n", canvas, x->x_tag);
+    	glist->gl_editor->e_textedfor = x;
+    	glist->gl_editor->e_textdirty = 0;
+	x->x_dragfrom = x->x_selstart = 0;
+	x->x_selend = x->x_bufsize;
+	x->x_active = 1;
+    }
+    else
+    {
+    	sys_vgui("selection clear .x%x.c\n", canvas);
+	sys_vgui(".x%x.c focus \"\"\n", canvas);
+    	if (glist->gl_editor->e_textedfor == x)
+    	    glist->gl_editor->e_textedfor = 0;
+	x->x_active = 0;
+    }
+    rtext_senditup(x, SEND_UPDATE, &w, &h, &indx);
+}
+
+void rtext_key(t_rtext *x, int keynum, t_symbol *keysym)
+{
+    int w = 0, h = 0, indx, i, newsize, ndel;
+    char *s1, *s2;
+    if (keynum)
+    {
+    	int n = keynum;
+	if (n == '\r') n = '\n';
+	if (n == '\b')
+	{
+    	    if ((!x->x_selstart) && (x->x_selend == x->x_bufsize))
+    	    {
+	    	    /* LATER delete the box... this causes reentrancy
+		    problems now. */
+    		/* glist_delete(x->x_glist, &x->x_text->te_g); */
+    		return;
+    	    }
+    	    else if (x->x_selstart && (x->x_selstart == x->x_selend))
+		x->x_selstart--;
+	}
+	ndel = x->x_selend - x->x_selstart;
+	for (i = x->x_selend; i < x->x_bufsize; i++)
+    	    x->x_buf[i- ndel] = x->x_buf[i];
+	newsize = x->x_bufsize - ndel;
+	x->x_buf = resizebytes(x->x_buf, x->x_bufsize, newsize);
+	x->x_bufsize = newsize;
+
+	if (n == '\n' || isprint(n))
+	{
+    	    newsize = x->x_bufsize+1;
+    	    x->x_buf = resizebytes(x->x_buf, x->x_bufsize, newsize);
+	    for (i = x->x_bufsize; i > x->x_selstart; i--)
+		x->x_buf[i] = x->x_buf[i-1];
+    	    x->x_buf[x->x_selstart] = n;
+    	    x->x_bufsize = newsize;
+	    x->x_selstart = x->x_selstart + 1;
+	}
+	x->x_selend = x->x_selstart;
+	x->x_glist->gl_editor->e_textdirty = 1;
+    }
+    else if (!strcmp(keysym->s_name, "Right"))
+    {
+    	if (x->x_selend == x->x_selstart && x->x_selstart < x->x_bufsize)
+	    x->x_selend = x->x_selstart = x->x_selstart + 1;
+	else
+	    x->x_selstart = x->x_selend;
+    }
+    else if (!strcmp(keysym->s_name, "Left"))
+    {
+    	if (x->x_selend == x->x_selstart && x->x_selstart > 0)
+	    x->x_selend = x->x_selstart = x->x_selstart - 1;
+	else
+	    x->x_selend = x->x_selstart;
+    }
+    	/* this should be improved...  life's too short */
+    else if (!strcmp(keysym->s_name, "Up"))
+    {
+	if (x->x_selstart)
+	    x->x_selstart--;
+    	while (x->x_selstart > 0 && x->x_buf[x->x_selstart] != '\n')
+	    x->x_selstart--;
+	x->x_selend = x->x_selstart;
+    }
+    else if (!strcmp(keysym->s_name, "Down"))
+    {
+    	while (x->x_selend < x->x_bufsize &&
+	    x->x_buf[x->x_selend] != '\n')
+	    x->x_selend++;
+	if (x->x_selend < x->x_bufsize)
+	    x->x_selend++;
+	x->x_selstart = x->x_selend;
+    }
+    rtext_senditup(x, SEND_UPDATE, &w, &h, &indx);
+}
+
+void rtext_mouse(t_rtext *x, int xval, int yval, int flag)
+{
+    int w = xval, h = yval, indx;
+    rtext_senditup(x, SEND_CHECK, &w, &h, &indx);
+    if (flag == RTEXT_DOWN)
+    {
+    	x->x_dragfrom = x->x_selstart = x->x_selend = indx;
+    }
+    else if (flag == RTEXT_SHIFT)
+    {
+    	if (indx * 2 > x->x_selstart + x->x_selend)
+	    x->x_dragfrom = x->x_selstart, x->x_selend = indx;
+    	else
+	    x->x_dragfrom = x->x_selend, x->x_selstart = indx;
+    }
+    else if (flag == RTEXT_DRAG)
+    {
+    	x->x_selstart = (x->x_dragfrom < indx ? x->x_dragfrom : indx);
+    	x->x_selend = (x->x_dragfrom > indx ? x->x_dragfrom : indx);
+    }
+    rtext_senditup(x, SEND_UPDATE, &w, &h, &indx);
+}
-- 
cgit v1.2.1