[gtk/matthiasc/for-master] inspector: Limit the width of readonly properties

[Matthias Clasen <matthiasc src gnome org>]

commit 34d547a2aa0d9031108489b8358e806605038011
Author: Matthias Clasen <mclasen redhat com>
Date:   Tue Nov 17 13:33:59 2020 -0500

    inspector: Limit the width of readonly properties
    
    For readonly properties, we show the serialized value
    in a label. If we don't take precautions, this can cause
    our window to grow extremely wide, and break things.
    So, ellipsize things at a reasonable size.
    
    Fixes: #3278

 gtk/inspector/prop-editor.c | 5 +++++
 1 file changed, 5 insertions(+)
---
diff --git a/gtk/inspector/prop-editor.c b/gtk/inspector/prop-editor.c
index dc2f6f2648..019d34ffbe 100644
--- a/gtk/inspector/prop-editor.c
+++ b/gtk/inspector/prop-editor.c
@@ -1551,6 +1551,11 @@ constructed (GObject *object)
   if (!can_modify)
     {
       label = gtk_label_new ("");
+      gtk_label_set_ellipsize (GTK_LABEL (label), PANGO_ELLIPSIZE_END);
+      gtk_label_set_max_width_chars (GTK_LABEL (label), 20);
+      gtk_label_set_xalign (GTK_LABEL (label), 0.0);
+      gtk_widget_set_hexpand (label, TRUE);
+      gtk_widget_set_halign (label, GTK_ALIGN_FILL);
       gtk_widget_add_css_class (label, "dim-label");
       gtk_box_append (GTK_BOX (box), label);