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d_arcbox.cpp
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d_arcbox.cpp
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/*
* FIG : Facility for Interactive Generation of figures
* Copyright (c) 1985-1988 by Supoj Sutanthavibul
* Parts Copyright (c) 1989-2002 by Brian V. Smith
* Parts Copyright (c) 1991 by Paul King
*
* Any party obtaining a copy of these files is granted, free of charge, a
* full and unrestricted irrevocable, world-wide, paid up, royalty-free,
* nonexclusive right and license to deal in this software and documentation
* files (the "Software"), including without limitation the rights to use,
* copy, modify, merge, publish distribute, sublicense and/or sell copies of
* the Software, and to permit persons who receive copies from any such
* party to do so, with the only requirement being that the above copyright
* and this permission notice remain intact.
*
*/
extern "C" {
#include "d_arcbox.h"
#include "fig.h"
#include "resources.h"
#include "mode.h"
#include "object.h"
#include "paintop.h"
#include "u_create.h"
#include "u_elastic.h"
#include "u_list.h"
#include "w_canvas.h"
#include "w_cursor.h"
#include "w_msgpanel.h"
#include "w_mousefun.h"
#include "f_util.h"
#include "u_redraw.h"
}
/*************************** local procedures *********************/
static void create_arc_boxobject(int x, int y);
static void cancel_arc_boxobject(int, int);
static void init_arc_box_drawing(int x, int y);
void arcbox_drawing_selected()
{
set_mousefun("corner point", "", "", "", "", "");
canvas_kbd_proc = (FCallBack)null_proc;
canvas_locmove_proc = null_proc;
canvas_leftbut_proc = (FCallBack)init_arc_box_drawing;
canvas_middlebut_proc = (FCallBack)null_proc;
canvas_rightbut_proc = (FCallBack)null_proc;
set_cursor(crosshair_cursor);
reset_action_on();
}
static void
init_arc_box_drawing(int x, int y)
{
cur_x = fix_x = x;
cur_y = fix_y = y;
set_mousefun("final point", "", "cancel", "", "", "");
draw_mousefun_canvas();
canvas_locmove_proc = resizing_box;
canvas_leftbut_proc = (FCallBack)create_arc_boxobject;
canvas_middlebut_proc = (FCallBack)null_proc;
canvas_rightbut_proc = (FCallBack)cancel_arc_boxobject;
elastic_box(fix_x, fix_y, cur_x, cur_y);
set_cursor(null_cursor);
set_action_on();
}
static void
cancel_arc_boxobject(int a, int b)
{
elastic_box(fix_x, fix_y, cur_x, cur_y);
arcbox_drawing_selected();
draw_mousefun_canvas();
}
static void
create_arc_boxobject(int x, int y)
{
F_line *box;
F_point *point;
elastic_box(fix_x, fix_y, cur_x, cur_y);
/* erase last lengths if appres.showlengths is true */
erase_box_lengths();
if (fix_x == x || fix_y == y) {
beep();
put_msg("Arc box must have area");
arcbox_drawing_selected();
draw_mousefun_canvas();
return;
}
if ((point = create_point()) == NULL)
return;
point->x = x;
point->y = y;
point->next = NULL;
if ((box = create_line()) == NULL) {
free((char *) point);
return;
}
box->type = T_ARCBOX;
box->style = cur_linestyle;
box->thickness = cur_linewidth;
box->pen_color = cur_pencolor;
box->fill_color = cur_fillcolor;
box->depth = cur_depth;
box->pen_style = -1;
box->join_style = cur_joinstyle;
box->cap_style = cur_capstyle;
box->fill_style = cur_fillstyle;
/* multiply dash length by line thickness */
box->style_val = cur_styleval * (cur_linewidth + 1) / 2;
box->radius = cur_boxradius;/* corner radius */
box->points = point;
append_point(x, fix_y, &point);
append_point(fix_x, fix_y, &point);
append_point(fix_x, y, &point);
append_point(x, y, &point);
add_line(box);
reset_action_on(); /* this signals redisplay_curobj() not to refresh */
/* draw it and anything on top of it */
redisplay_line(box);
arcbox_drawing_selected();
draw_mousefun_canvas();
}