New function dlg_editbox_select_range.

This manipulates the selection inside an edit box, to select a
specific range of characters in the contained text. The idea is that
you can use it as a means of error highlighting, if the user has
entered something invalid in that edit box and you want to draw their
attention to the specific location of the part you're unhappy with.

1 files changed, 21 insertions, 0 deletions

diff --git a/unix/dialog.c b/unix/dialog.c
index eda622f1..161f393d 100644
--- a/unix/dialog.c
+++ b/unix/dialog.c
@@ -357,6 +357,27 @@ char *dlg_editbox_get(dlgcontrol *ctrl, dlgparam *dp)
     unreachable("bad control type in editbox_get");
 }
 
+void dlg_editbox_select_range(dlgcontrol *ctrl, dlgparam *dp,
+                              size_t start, size_t len)
+{
+    struct uctrl *uc = dlg_find_byctrl(dp, ctrl);
+    assert(uc->ctrl->type == CTRL_EDITBOX);
+
+    GtkWidget *entry = NULL;
+
+#if GTK_CHECK_VERSION(2,4,0)
+    if (uc->combo)
+        entry = gtk_bin_get_child(GTK_BIN(uc->combo));
+#endif
+
+    if (uc->entry)
+        entry = uc->entry;
+
+    assert(entry && "we should have a GtkEntry one way or another");
+
+    gtk_editable_select_region(GTK_EDITABLE(entry), start, start + len);
+}
+
 #if !GTK_CHECK_VERSION(2,4,0)
 static void container_remove_and_destroy(GtkWidget *w, gpointer data)
 {