Have you tried gtk_text_buffer_insert_with_tags_by_name() to insert text
with a tag at an iter?
What tag combo do you use to get the cursor to bounce around? If I test
having two indent tags on the same line, the first one applied wins out.
This is what I tested with.
Eric
/*
gcc -Wall move_cursor1.c -o move_cursor1 `pkg-config --cflags --libs
gtk+-3.0`
Tested on GTK3.18 and Ubuntu16.04
*/
#include<gtk/gtk.h>
static void get_style(GtkTextView *tv, GtkMovementStep step, gint count,
gboolean extend, gpointer *user_data)
{
static int i=1;
GtkTextIter start;
GtkTextMark *mark;
GtkTextBuffer *buf;
buf=gtk_text_view_get_buffer(GTK_TEXT_VIEW(tv));
mark=gtk_text_buffer_get_insert(buf);
gtk_text_buffer_get_iter_at_mark (buf, &start, mark);
g_print("Iter %i\n", gtk_text_iter_get_offset(&start));
GSList *tlist=NULL;
GSList *p=NULL;
tlist=gtk_text_iter_get_tags(&start);
g_print("%i. List %p p %p\n", i, tlist, p);
i++;
for(p=tlist;p;p=p->next)
{
gchar *string=NULL;
g_object_get(G_OBJECT(p->data), "name", &string, NULL);
g_print("p %p %s\n", p, string);
g_free(string);
}
g_print("List %p\n", tlist);
if(tlist!=NULL) g_slist_free(tlist);
}
int main (int argc, char *argv[])
{
gtk_init(&argc, &argv);
GtkWidget *window=gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_title(GTK_WINDOW(window), "Move Cursor");
gtk_window_set_default_size(GTK_WINDOW(window), 300, 200);
gtk_window_set_position(GTK_WINDOW(window), GTK_WIN_POS_CENTER);
g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
GtkWidget *textview=gtk_text_view_new();
gtk_widget_set_vexpand(textview, TRUE);
gtk_widget_set_hexpand(textview, TRUE);
g_signal_connect(textview, "move-cursor", G_CALLBACK(get_style),
NULL);
GtkTextBuffer *buffer=gtk_text_view_get_buff
er(GTK_TEXT_VIEW(textview));
gtk_text_buffer_create_tag(buffer, "ital", "style",
PANGO_STYLE_ITALIC, NULL);
gtk_text_buffer_create_tag(buffer, "bold", "weight",
PANGO_WEIGHT_BOLD, NULL);
gtk_text_buffer_create_tag(buffer, "uline", "underline",
PANGO_UNDERLINE_SINGLE, NULL);
gtk_text_buffer_create_tag(buffer, "indent", "indent", 20, NULL);
gtk_text_buffer_create_tag(buffer, "indent2", "indent", 40, NULL);
gtk_text_buffer_create_tag(buffer, "left-margin", "left-margin", 20,
NULL);
gtk_text_buffer_create_tag(buffer, "left-margin2", "left-margin",
40, NULL);
GtkTextIter iter;
gtk_text_buffer_get_start_iter(buffer, &iter);
gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "ital ", -1,
"ital", NULL);
gtk_text_buffer_get_end_iter(buffer, &iter);
gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "bold ", -1,
"bold", NULL);
gtk_text_buffer_get_end_iter(buffer, &iter);
//Check a newline for a tag.
gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "uline \n",
-1, "uline", NULL);
gtk_text_buffer_get_end_iter(buffer, &iter);
gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "all\n", -1,
"ital", "bold", "uline", NULL);
//Check indents in the same line.
gtk_text_buffer_get_end_iter(buffer, &iter);
gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "indent ",
-1, "indent", NULL);
gtk_text_buffer_get_end_iter(buffer, &iter);
gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "indent2\n",
-1, "indent2", NULL);
gtk_text_buffer_get_end_iter(buffer, &iter);
gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "indent2\n",
-1, "indent2", NULL);
//Check left-margin in the same line.
gtk_text_buffer_get_end_iter(buffer, &iter);
gtk_text_buffer_insert_with_tags_by_name(buffer, &iter, "left-margin
", -1, "left-margin", NULL);
gtk_text_buffer_get_end_iter(buffer, &iter);
gtk_text_buffer_insert_with_tags_by_name(buffer, &iter,
"left-margin2\n", -1, "left-margin2", NULL);
gtk_text_buffer_get_end_iter(buffer, &iter);
gtk_text_buffer_insert_with_tags_by_name(buffer, &iter,
"left-margin2", -1, "left-margin2", NULL);
GtkWidget *grid=gtk_grid_new();
gtk_container_set_border_width(GTK_CONTAINER(grid), 8);
gtk_grid_attach(GTK_GRID(grid), textview, 0, 0, 1, 1);
gtk_container_add(GTK_CONTAINER(window), grid);
gtk_widget_show_all(window);
gtk_main();
return 0;
}
