void
constrained_resizing_cbd(int x, int y)
{
elastic_cbd();
adjust_box_pos(x, y, from_x, from_y, &cur_x, &cur_y);
length_msg(MSG_DIAM);
elastic_cbd();
}
void
resizing_cbd(int x, int y)
{
elastic_cbd();
cur_x = x;
cur_y = y;
length_msg(MSG_DIAM);
elastic_cbd();
}
static void
fix_movedellipsepoint(int x, int y)
{
switch (cur_e->type) {
case T_ELLIPSE_BY_RAD:
elastic_ebr();
break;
case T_CIRCLE_BY_RAD:
elastic_cbr();
break;
case T_ELLIPSE_BY_DIA:
elastic_ebd();
break;
case T_CIRCLE_BY_DIA:
elastic_cbd();
break;
}
canvas_ref_proc = canvas_locmove_proc = null_proc;
adjust_box_pos(x, y, from_x, from_y, &cur_x, &cur_y);
new_e = copy_ellipse(cur_e);
relocate_ellipsepoint(new_e, cur_x, cur_y, movedpoint_num);
change_ellipse(cur_e, new_e);
/* redraw anything under the old ellipse */
redisplay_ellipse(cur_e);
/* and the new one */
redisplay_ellipse(new_e);
/* turn back on all relevant markers */
update_markers(new_objmask);
wrapup_movepoint();
}
static void
cancel_movedellipsepoint(void)
{
canvas_ref_proc = canvas_locmove_proc = null_proc;
/* erase elastic version */
switch (cur_e->type) {
case T_ELLIPSE_BY_RAD:
elastic_ebr();
break;
case T_CIRCLE_BY_RAD:
elastic_cbr();
break;
case T_ELLIPSE_BY_DIA:
elastic_ebd();
break;
case T_CIRCLE_BY_DIA:
elastic_cbd();
break;
}
/* redraw original ellipse */
redisplay_ellipse(cur_e);
/* turn back on all relevant markers */
update_markers(new_objmask);
wrapup_movepoint();
}
static void
cancel_circlebydia(void)
{
elastic_cbd();
center_marker(fix_x, fix_y);
circle_ellipse_bydiameter_drawing_selected();
draw_mousefun_canvas();
}
static void
init_circlebydiameter_drawing(int x, int y)
{
cur_mode = F_CIRCLE_BY_DIA;
cur_x = fix_x = x;
cur_y = fix_y = y;
center_marker(fix_x, fix_y);
set_mousefun("final point", "", "cancel", "", "", "");
draw_mousefun_canvas();
canvas_locmove_proc = resizing_cbd;
canvas_leftbut_proc = create_circlebydia;
canvas_middlebut_proc = null_proc;
canvas_rightbut_proc = cancel_circlebydia;
set_cursor(null_cursor);
elastic_cbd();
set_action_on();
}
static void
create_circlebydia(int x, int y)
{
F_ellipse *c;
double rx, ry;
elastic_cbd();
center_marker(fix_x, fix_y);
if ((c = create_ellipse()) == NULL)
return;
c->type = T_CIRCLE_BY_DIA;
c->style = cur_linestyle;
c->thickness = cur_linewidth;
c->style_val = cur_styleval * (cur_linewidth + 1) / 2;
c->angle = 0.0;
c->pen_color = cur_pencolor;
c->fill_color = cur_fillcolor;
c->depth = cur_depth;
c->pen_style = -1;
c->fill_style = cur_fillstyle;
c->direction = 1;
c->center.x = round((fix_x + x) / 2);
c->center.y = round((fix_y + y) / 2);
rx = x - c->center.x;
ry = y - c->center.y;
c->radiuses.x = c->radiuses.y = round(sqrt(rx * rx + ry * ry));
c->start.x = fix_x;
c->start.y = fix_y;
c->end.x = x;
c->end.y = y;
c->next = NULL;
add_ellipse(c);
reset_action_on(); /* this signals redisplay_curobj() not to refresh */
/* draw it and anything on top of it */
redisplay_ellipse(c);
circle_ellipse_bydiameter_drawing_selected();
draw_mousefun_canvas();
}
