PsppireDataSheet.c: Indicate filtered out cases in the row headers

[pspp] / src / ui / gui / psppire-data-sheet.c

diff --git a/src/ui/gui/psppire-data-sheet.c b/src/ui/gui/psppire-data-sheet.c
index ca22471c8897d059730ab4b6aa6e5bc8ccede32d..59268d21f431a3e569e8f7f3a4ddff654ebad02e 100644 (file)
--- a/src/ui/gui/psppire-data-sheet.c
+++ b/src/ui/gui/psppire-data-sheet.c
@@ -26,6 +26,7 @@
 
 #include "ui/gui/executor.h"
 #include "psppire-data-window.h"
+#include "ssw-axis-model.h"
 
 static void
 do_sort (PsppireDataSheet *sheet, GtkSortType order)
@@ -102,16 +103,9 @@ change_data_value (PsppireDataSheet *sheet, gint col, gint row, GValue *value)
   value_destroy_from_variant (&v, vrnt);
 }
 
-static gchar *
-data_store_value_to_string (SswSheet *data_sheet, PsppireDataStore *store, gint col, gint row, const GValue *v)
-{
-  return psppire_data_store_value_to_string (store, col, row, v);
-}
-
 gboolean myreversefunc (GtkTreeModel *model, gint col, gint row, const gchar *in,
                    GValue *out);
 
-
 \f
 
 static void
@@ -355,13 +349,41 @@ psppire_data_sheet_new (void)
 {
   GObject *obj =
     g_object_new (PSPPIRE_TYPE_DATA_SHEET,
-                 "forward-conversion", data_store_value_to_string,
+                 "forward-conversion", psppire_data_store_value_to_string,
                  "reverse-conversion", myreversefunc,
                  NULL);
 
   return GTK_WIDGET (obj);
 }
 
+
+static gboolean
+indicate_filtered_case (GtkWidget *widget, cairo_t *cr, PsppireDataStore *store)
+{
+  guint row = g_object_get_data (widget, "row");
+
+  if (!psppire_data_store_filtered (store, row))
+    return FALSE;
+
+  /* Draw a diagonal line through the widget */
+  guint width = gtk_widget_get_allocated_width (widget);
+  guint height = gtk_widget_get_allocated_height (widget);
+
+  GtkStyleContext *sc = gtk_widget_get_style_context (widget);
+  gtk_render_line (sc, cr, 0, 0, width, height);
+
+  return FALSE;
+}
+
+static void
+button_post_create (GtkWidget *button, uint i, gpointer user_data)
+{
+  PsppireDataStore *data_store = PSPPIRE_DATA_STORE (user_data);
+
+  g_object_set_data (button, "row", GUINT_TO_POINTER (i));
+  g_signal_connect_after (button, "draw", indicate_filtered_case, data_store);
+}
+
 static void
 set_dictionary (PsppireDataSheet *sheet)
 {
@@ -370,6 +392,16 @@ set_dictionary (PsppireDataSheet *sheet)
 
   PsppireDataStore *store = PSPPIRE_DATA_STORE (data_model);
   g_object_set (sheet, "hmodel", store->dict, NULL);
+
+
+  SswAxisModel *vmodel = NULL;
+  g_object_get (sheet, "vmodel", &vmodel, NULL);
+  g_assert (SSW_IS_AXIS_MODEL (vmodel));
+
+  g_object_set (vmodel,
+               "post-button-create-func", button_post_create,
+               "post-button-create-func-data", store,
+               NULL);
 }
 
 static void