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#include <gtk/gtk.h>
#include "gtksourceview/gtktextregion.h"
int
main (int argc, char **argv)
{
GtkTextBuffer *buffer;
GtkTextRegion *region, *intersection;
GtkTextRegionIterator reg_iter;
GtkTextIter iter1, iter2;
gint i;
#define NUM_OPS 23
gint ops [NUM_OPS][3] = {
/* add/remove a 0-length region */
{ 1, 5, 5 },
{ -1, 5, 5 },
/* add a region */
{ 1, 5, 10 },
/* add two adjacent regions */
{ 1, 3, 5 },
{ 1, 10, 12 },
/* remove all */
{ -1, 1, 15 },
/* add two separate regions */
{ 1, 5, 10 },
{ 1, 15, 20 },
/* join them */
{ 1, 7, 17 },
/* remove from the middle */
{ -1, 10, 15 },
/* exactly remove a subregion */
{ -1, 15, 20 },
/* try to remove an adjacent region */
{ -1, 10, 20 },
/* try to remove an adjacent region */
{ -1, 0, 5 },
/* add another separate */
{ 1, 15, 20 },
/* join with excess */
{ 1, 0, 25 },
/* do two holes */
{ -1, 5, 10 },
{ -1, 15, 20 },
/* remove the middle subregion */
{ -1, 8, 22 },
/* add the subregion we just removed */
{ 1, 10, 15 },
/* remove the middle subregion */
{ -1, 3, 17 },
/* add the subregion we just removed */
{ 1, 10, 15 },
/* remove the middle subregion */
{ -1, 2, 23 },
/* add the subregion we just removed */
{ 1, 10, 15 },
};
#define NUM_INTERSECTS 5
gint inter [NUM_INTERSECTS][2] = {
{ 0, 25 },
{ 10, 15 },
{ 8, 17 },
{ 1, 24 },
{ 3, 7 }
};
gtk_init (&argc, &argv);
buffer = gtk_text_buffer_new (NULL);
region = gtk_text_region_new (buffer);
gtk_text_buffer_get_start_iter (buffer, &iter1);
gtk_text_buffer_insert (buffer, &iter1, "This is a test of GtkTextRegion", -1);
gtk_text_region_get_iterator (region, ®_iter, 0);
if (!gtk_text_region_iterator_is_end (®_iter)) {
g_print ("problem fetching iterator for an empty region\n");
return -1;
}
for (i = 0; i < NUM_OPS; i++) {
gchar *op_name;
gtk_text_buffer_get_iter_at_offset (buffer, &iter1, ops [i][1]);
gtk_text_buffer_get_iter_at_offset (buffer, &iter2, ops [i][2]);
if (ops [i][0] > 0) {
op_name = "added";
gtk_text_region_add (region, &iter1, &iter2);
} else {
op_name = "deleted";
gtk_text_region_subtract (region, &iter1, &iter2);
}
g_print ("%s %d-%d\n", op_name, ops [i][1], ops [i][2]);
gtk_text_region_debug_print (region);
}
for (i = 0; i < NUM_INTERSECTS; i++) {
gtk_text_buffer_get_iter_at_offset (buffer, &iter1, inter [i][0]);
gtk_text_buffer_get_iter_at_offset (buffer, &iter2, inter [i][1]);
g_print ("intersect %d-%d\n", inter [i][0], inter [i][1]);
intersection = gtk_text_region_intersect (region, &iter1, &iter2);
if (intersection) {
gtk_text_region_debug_print (intersection);
gtk_text_region_destroy (intersection, TRUE);
} else {
g_print ("no intersection\n");
}
}
i = 0;
gtk_text_region_get_iterator (region, ®_iter, 0);
while (!gtk_text_region_iterator_is_end (®_iter))
{
GtkTextIter s, e, s1, e1;
gtk_text_region_iterator_get_subregion (®_iter,
&s, &e);
gtk_text_region_nth_subregion (region, i, &s1, &e1);
if (!gtk_text_iter_equal (&s, &s1) ||
!gtk_text_iter_equal (&e, &e1))
g_print ("problem iterating\n");
++i;
gtk_text_region_iterator_next (®_iter);
}
if (i != gtk_text_region_subregions (region))
g_print ("problem iterating all subregions\n");
g_print ("iterated %d subregions\n", i);
gtk_text_region_destroy (region, TRUE);
g_object_unref (buffer);
return 0;
}
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