static void
fix_movedlinepoint(int x, int y)
{
(*canvas_locmove_proc) (x, y);
canvas_ref_proc = canvas_locmove_proc = null_proc;
elastic_linelink();
/* erase last lengths if appres.showlengths is true */
erase_lengths();
if (cur_latexcursor != crosshair_cursor)
set_cursor(crosshair_cursor);
/* make a copy of the original and save as unchanged object */
old_l = copy_line(cur_l);
clean_up();
set_latestline(old_l);
set_action_object(F_EDIT, O_POLYLINE);
old_l->next = cur_l;
/* now change the original to become the new object */
relocate_linepoint(cur_l, cur_x, cur_y, moved_point, left_point);
/* redraw anything under the old line */
redisplay_line(old_l);
/* and the new line */
redisplay_line(cur_l);
/* turn back on all relevant markers */
update_markers(new_objmask);
wrapup_movepoint();
}
void
reshaping_line(int x, int y)
{
elastic_linelink();
adjust_pos(x, y, from_x, from_y, &cur_x, &cur_y);
/* one or two lines moving with the move point? */
if (left_point != NULL && right_point != NULL) {
length_msg2(left_point->x,left_point->y,
right_point->x,right_point->y,cur_x,cur_y);
} else if (left_point != NULL) {
altlength_msg(MSG_LENGTH,left_point->x,left_point->y);
} else if (right_point != NULL) {
altlength_msg(MSG_LENGTH,right_point->x,right_point->y);
}
elastic_linelink();
}
static void
init_splinepointmoving(void)
{
set_action_on();
/* turn off all markers */
update_markers(0);
from_x = cur_x = moved_point->x;
from_y = cur_y = moved_point->y;
set_cursor(crosshair_cursor);
if (open_spline(cur_s)) {
if (left_point == NULL || right_point == NULL) {
if (left_point != NULL) {
fix_x = left_point->x;
fix_y = left_point->y;
} else if (right_point != NULL) {
fix_x = right_point->x;
fix_y = right_point->y;
}
if (latexline_mode || latexarrow_mode) {
canvas_locmove_proc = latex_line;
canvas_ref_proc = elastic_line;
cur_latexcursor = crosshair_cursor;
} else if (mountain_mode || manhattan_mode) {
canvas_locmove_proc = constrainedangle_line;
canvas_ref_proc = elastic_line;
} else {
/* freehand line */
canvas_locmove_proc = reshaping_line;
canvas_ref_proc = elastic_linelink;
}
} else {
/* linelink, always freehand */
force_noanglegeom();
canvas_locmove_proc = reshaping_line;
canvas_ref_proc = elastic_linelink;
}
} else {
/* must be closed spline */
force_noanglegeom();
canvas_locmove_proc = reshaping_line;
canvas_ref_proc = elastic_linelink;
if (left_point == NULL) {
for (left_point = right_point;
left_point->next != NULL;
left_point = left_point->next);
}
if (right_point == NULL) {
right_point = cur_s->points; /* take the first */
}
}
/* show current length(s) */
(canvas_locmove_proc)(cur_x, cur_y);
elastic_linelink();
canvas_leftbut_proc = fix_movedsplinepoint;
canvas_rightbut_proc = cancel_movedsplinepoint;
}
static void
cancel_movedsplinepoint(void)
{
canvas_ref_proc = canvas_locmove_proc = null_proc;
elastic_linelink();
/* erase last lengths if appres.showlengths is true */
erase_lengths();
/* turn back on all relevant markers */
update_markers(new_objmask);
wrapup_movepoint();
}
static void
cancel_movedlinepoint(void)
{
canvas_ref_proc = canvas_locmove_proc = null_proc;
/* erase the elastic line */
elastic_linelink();
/* erase last lengths if appres.showlengths is true */
erase_lengths();
/* redraw original line */
redisplay_line(cur_l);
/* turn back on all relevant markers */
update_markers(new_objmask);
wrapup_movepoint();
}
static void
fix_movedsplinepoint(int x, int y)
{
(*canvas_locmove_proc) (x, y);
canvas_ref_proc = canvas_locmove_proc = null_proc;
elastic_linelink();
/* erase last lengths if appres.showlengths is true */
erase_lengths();
old_s = copy_spline(cur_s);
clean_up();
set_latestspline(old_s);
set_action_object(F_EDIT, O_SPLINE);
old_s->next = cur_s;
relocate_splinepoint(cur_s, cur_x, cur_y, moved_point);
/* redraw anything under the old spline */
redisplay_spline(old_s);
/* and the new one */
redisplay_spline(cur_s);
/* turn back on all relevant markers */
update_markers(new_objmask);
wrapup_movepoint();
}
