[ghex/gtk4-port: 44/91] Almost finish implementing basic prefs dialog.

[Logan Rathbone <larathbone src gnome org>]

commit d1cf5bbb788841e4900c19c4c6481750d8e6fb7b
Author: Logan Rathbone <poprocks gmail com>
Date:   Wed Jan 20 02:01:55 2021 -0500

    Almost finish implementing basic prefs dialog.
    
    Need to do button close and help callbacks.

 src/preferences.c | 28 +++++++++++++++++++++-------
 1 file changed, 21 insertions(+), 7 deletions(-)
---
diff --git a/src/preferences.c b/src/preferences.c
index 1ad430fa..5ab8ae49 100644
--- a/src/preferences.c
+++ b/src/preferences.c
@@ -65,6 +65,9 @@ static GtkWidget *prefs_dialog;
 static GtkWidget *content_area_box;
 static GtkWidget *font_frame, *group_type_frame, *print_font_frame;
 
+/* for spinbtn */
+static GtkAdjustment *shaded_box_adj;
+
 /* widgets that interact with settings */
 static GtkWidget *font_button;
 static GtkWidget *data_font_button;
@@ -127,8 +130,14 @@ static void
 shaded_box_spinbtn_value_changed_cb (GtkSpinButton *spin_button,
                gpointer user_data)
 {
-       g_debug ("%s: NOT IMPLEMENTED - value: %f",
-                       __func__, gtk_spin_button_get_value (spin_button));
+       /* we _want_ implicit conversion here. */
+       guint tmp = gtk_spin_button_get_value_as_int (spin_button);
+
+       if (tmp != shaded_box_size) {
+               g_settings_set_uint (settings,
+                               GHEX_PREF_BOX_SIZE,
+                               tmp);
+       }
 }
 
 static void
@@ -238,7 +247,7 @@ font_set_cb (GtkFontButton *widget,
        }
 }
 
-/* Quick helper function for setup_signals. */
+/* Quick helper function for font buttons */
 static void
 monospace_only (GtkWidget *font_button)
 {
@@ -256,10 +265,6 @@ setup_signals (void)
 {
        /* font_buttons */
 
-       /* Make certain font choosers only allow monospace fonts. */
-       monospace_only (font_button);
-       monospace_only (data_font_button);
-
        g_signal_connect (font_button, "font-set",
                        G_CALLBACK(font_set_cb), GINT_TO_POINTER(GUI_FONT));
 
@@ -364,6 +369,15 @@ init_widgets (void)
        GET_WIDGET (shaded_box_chkbtn);
        GET_WIDGET (shaded_box_spinbtn);
        GET_WIDGET (shaded_box_box);
+
+       /* Make certain font choosers only allow monospace fonts. */
+       monospace_only (font_button);
+       monospace_only (data_font_button);
+
+       /* shaded box entry */
+       shaded_box_adj = GTK_ADJUSTMENT(gtk_adjustment_new(0, 0, 1000, 1, 10, 0));
+       gtk_spin_button_set_adjustment (GTK_SPIN_BUTTON(shaded_box_spinbtn),
+                       shaded_box_adj);
 }
 
 /* PUBLIC FUNCTIONS */