void
moving_ellipse(int x, int y)
{
elastic_moveellipse();
adjust_pos(x, y, fix_x, fix_y, &cur_x, &cur_y);
length_msg(MSG_DIST);
elastic_moveellipse();
}
static void
place_ellipse(int x, int y)
{
elastic_moveellipse();
/* erase last lengths if appres.showlengths is true */
erase_lengths();
place_ellipse_x(x, y);
}
static void
array_place_ellipse(int x, int y)
{
int i, j, delta_x, delta_y, start_x, start_y;
int nx, ny;
F_ellipse *save_ellipse;
elastic_moveellipse();
/* erase last lengths if appres.showlengths is true */
erase_lengths();
tail(&objects, &object_tails);
save_ellipse = new_e;
if ((!cur_numxcopies) && (!cur_numycopies)) {
place_ellipse(x, y);
}
else {
delta_x = cur_x - fix_x;
delta_y = cur_y - fix_y;
start_x = cur_x - delta_x;
start_y = cur_y - delta_y;
if ((cur_numxcopies < 2) && (cur_numycopies < 2)) { /* special cases */
if (cur_numxcopies > 0) {
place_ellipse_x(start_x+delta_x, start_y);
new_e = copy_ellipse(cur_e);
}
if (cur_numycopies > 0) {
place_ellipse_x(start_x, start_y+delta_y);
new_e = copy_ellipse(cur_e);
}
} else {
nx = cur_numxcopies;
if (nx == 0)
nx++;
ny = cur_numycopies;
if (ny == 0)
ny++;
for (i = 0, x = start_x; i < nx; i++, x+=delta_x) {
for (j = 0, y = start_y; j < ny; j++, y+=delta_y) {
if (i || j ) {
place_ellipse_x(x, y);
new_e = copy_ellipse(cur_e);
}
}
}
}
}
/* put all new ellipses in the saved objects structure for undo */
saved_objects.ellipses = save_ellipse;
set_action_object(F_ADD, O_ALL_OBJECT);
/* turn back on all relevant markers */
update_markers(new_objmask);
}
static void
cancel_ellipse(void)
{
canvas_ref_proc = canvas_locmove_proc = null_proc;
elastic_moveellipse();
/* erase last lengths if appres.showlengths is true */
erase_lengths();
if (return_proc == copy_selected) {
free_ellipse(&new_e);
} else {
list_add_ellipse(&objects.ellipses, new_e);
redisplay_ellipse(new_e);
}
/* turn back on all relevant markers */
update_markers(new_objmask);
(*return_proc) ();
draw_mousefun_canvas();
}
void
init_ellipsedragging(F_ellipse *e, int x, int y)
{
new_e = e;
fix_x = cur_x = x;
fix_y = cur_y = y;
cur_angle = e->angle;
x1off = (e->center.x - e->radiuses.x) - cur_x;
x2off = (e->center.x + e->radiuses.x) - cur_x;
y1off = (e->center.y - e->radiuses.y) - cur_y;
y2off = (e->center.y + e->radiuses.y) - cur_y;
canvas_locmove_proc = moving_ellipse;
canvas_ref_proc = elastic_moveellipse;
canvas_leftbut_proc = place_ellipse;
canvas_middlebut_proc = array_place_ellipse;
canvas_rightbut_proc = cancel_ellipse;
set_action_on();
elastic_moveellipse();
}
