Indeed I tried your code from Aug 15 and if you insert a character at the
beginning of the 3rd or 5th line, the indent/margin disappears. Then if
you backspace over that inserted character, the indent/margin re-appears.
I tried this in <3.20 and 3.22. Would you consider this a bug? I've never
reported a bug to GTK. What is the basic procedure?
On Tue, Aug 15, 2017 at 2:38 PM, Doug McCasland <do...@bravoecho.net> wrote:
> Indeed, gtk_text_buffer_insert_with_tags_by_name() does what it says.
> What I was talking about was (in some future Textview) applying the tag to
> an iter, then whenever the insert point was on that iter, it would inherit
> the tag properties set there. So typing at that point gets the
> formatting.
>
> I don't have my code in front of me, but as I recall the jumpy-cursor
> thing happened with this:
>
> 1. Insert some text in a line.
> 2. Apply indent 50px to whole line. The line will be indented on the
> screen.
> 3. Start typing at the beginning of line, which will not inherit the
> indent tag. The indent will disappear on the screen.
> 4. Move the cursor to the region with the applied indent -- the indent
> comes back.
>
>
>
> On Tue, Aug 15, 2017 at 2:27 PM, <cecas...@aol.com> wrote:
>
>>
>> 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;
>> }
>
>
>
>
> --
> Doug McCasland <do...@bravoecho.net>
>
--
Doug McCasland <do...@bravoecho.net>
_______________________________________________
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
https://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
