C++ (Cpp) empty_grid Examples

Example #1

File: edit_graphics.cpp Project: Easycker/itexmacs

tree
edit_graphics_rep::graphical_select (double x, double y) { 
  frame f= find_frame ();
  if (is_nil (f)) return tuple ();
  gr_selections sels;
  point p0 = point (x, y);
  point p = f (p0);
  sels= eb->graphical_select ((SI)p[0], (SI)p[1], 10*get_pixel_size ());
  gs= sels;
  pts= array<point> (0);
  ci= array<point> (0);
  cgi= array<point> (0);
  gr0= empty_grid ();
  grid g= find_grid ();
  frame f2= find_frame (true);
  if (!is_nil (g) && !is_nil (f2)) {
    gr0= g;
    p = f2 (point (x, y));
    int i, j, n= N(sels);
    for (i=0; i<n; i++) {
      array<point> pts2= sels[i]->pts;
      if (N(pts2)>0 && norm (pts2[0] - p) <= 10*get_pixel_size ())
	pts= pts << pts2[0];
      if (N(pts2)>1 && norm (pts2[1] - p) <= 10*get_pixel_size ())
	pts= pts << pts2[1];
    }
    double eps= get_pixel_size () / 10.0;
    for (i=0; i<n; i++) {
      for (j=0; j<n; j++)
        if (i<j) {
	  curve c1= sels[i]->c;
	  curve c2= sels[j]->c;
	  if (!is_nil (c1) && !is_nil (c2))
	    ci= ci << intersection (c1, c2, p, eps);
        }
    }
    array<grid_curve> gc= g->get_curves_around (p0, 10*get_pixel_size (), f);
    //FIXME: Too slow
    for (i=0; i<N(gc); i++) {
      curve c= f2 (gc[i]->c);
      for (j=0; j<n; j++)
	if (!is_nil (sels[j]->c))
	  cgi= cgi << intersection (c, sels[j]->c, p, eps);
    }
  }
  return as_tree (sels);
}

Example #2

File: testgrid.c Project: BoozzyAmdJin/gtk-

int
main (int argc, char *argv[])
{
  gtk_init (NULL, NULL);

  if (g_getenv ("RTL"))
    gtk_widget_set_default_direction (GTK_TEXT_DIR_RTL);

  simple_grid ();
  text_grid ();
  box_comparison ();
  empty_line ();
  scrolling ();
  insert ();
  empty_grid ();

  gtk_main ();

  return 0;
}

Example #3

File: edit_graphics.cpp Project: mgubi/texmacs

tree
edit_graphics_rep::graphical_select (double x, double y) { 
  frame f= find_frame ();
  if (is_nil (f)) return tuple ();
  gr_selections pre_sels, sels;
  point p0 = point (x, y);
  point p = f (p0);
  pre_sels= eb->graphical_select ((SI)p[0], (SI)p[1], snap_distance);
  for (int i=0; i<N(pre_sels); i++)
    if (admissible_selection (pre_sels[i]))
      sels << pre_sels[i];
  //for (int i=0; i<N(sels); i++)
  //  cout << i << ":\t" << sels[i] << "\n";
  gs= sels;
  gr0= empty_grid ();
  grid g= find_grid ();
  frame f2= find_frame (true);
  if (!is_nil (g) && !is_nil (f2)) {
    gr0= g;
    p_x= x;
    p_y= y;
  }
  return as_tree (sels);
}