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gtk-demo: set irreversable actions for textview demos

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This commit is contained in:
Christian Hergert 2019-11-01 11:30:33 -07:00
parent 67c0f88c00
commit dba9298c14
3 changed files with 12 additions and 0 deletions
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3
demos/gtk-demo/hypertext.c
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@ -41,6 +41,7 @@ show_page (GtkTextBuffer *buffer,
gtk_text_buffer_set_text (buffer, "", 0);
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
gtk_text_buffer_begin_irreversible_action (buffer);
if (page == 1)
{
gtk_text_buffer_insert (buffer, &iter, "Some text to show that simple ", -1);
@ -73,6 +74,7 @@ show_page (GtkTextBuffer *buffer,
"so that related items of information are connected.\n", -1);
insert_link (buffer, &iter, "Go back", 1);
}
gtk_text_buffer_end_irreversible_action (buffer);
}
/* Looks at all tags covering the position of iter in the text view,
@ -258,6 +260,7 @@ do_hypertext (GtkWidget *do_widget)
gtk_widget_add_controller (view, controller);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_set_enable_undo (buffer, TRUE);
sw = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (sw),

6
demos/gtk-demo/markup.c
View File

@ -29,8 +29,10 @@ source_toggled (GtkToggleButton *button)
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_get_bounds (buffer, &start, &end);
gtk_text_buffer_begin_irreversible_action (buffer);
gtk_text_buffer_delete (buffer, &start, &end);
gtk_text_buffer_insert_markup (buffer, &start, markup, -1);
gtk_text_buffer_end_irreversible_action (buffer);
g_free (markup);
gtk_stack_set_visible_child_name (GTK_STACK (stack), "formatted");
@ -106,11 +108,15 @@ do_markup (GtkWidget *do_widget)
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view));
gtk_text_buffer_get_start_iter (buffer, &iter);
gtk_text_buffer_begin_irreversible_action (buffer);
gtk_text_buffer_insert_markup (buffer, &iter, markup, -1);
gtk_text_buffer_end_irreversible_action (buffer);
buffer = gtk_text_view_get_buffer (GTK_TEXT_VIEW (view2));
gtk_text_buffer_get_start_iter (buffer, &iter);
gtk_text_buffer_begin_irreversible_action (buffer);
gtk_text_buffer_insert (buffer, &iter, markup, -1);
gtk_text_buffer_end_irreversible_action (buffer);
g_bytes_unref (bytes);

3
demos/gtk-demo/textview.c
View File

@ -144,6 +144,7 @@ insert_text (GtkTextBuffer *buffer)
*/
gtk_text_buffer_get_iter_at_offset (buffer, &iter, 0);
gtk_text_buffer_begin_irreversible_action (buffer);
gtk_text_buffer_insert (buffer, &iter,
"The text widget can display text with all kinds of nifty attributes. "
"It also supports multiple views of the same buffer; this demo is "
@ -377,6 +378,8 @@ insert_text (GtkTextBuffer *buffer)
gtk_text_buffer_get_bounds (buffer, &start, &end);
gtk_text_buffer_apply_tag_by_name (buffer, "word_wrap", &start, &end);
gtk_text_buffer_end_irreversible_action (buffer);
g_object_unref (texture);
}