Added custom psppire-selector widget.

[pspp-builds.git] / src / ui / gui / psppire-selector.h

diff --git a/src/ui/gui/psppire-selector.h b/src/ui/gui/psppire-selector.h
new file mode 100644 (file)
index 0000000..7ba88a9
--- /dev/null
+++ b/src/ui/gui/psppire-selector.h
@@ -0,0 +1,107 @@
+/*
+   PSPPIRE --- A Graphical User Interface for PSPP
+   Copyright (C) 2007  Free Software Foundation
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2 of the License, or
+   (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+   02110-1301, USA.
+*/
+
+
+#ifndef __PSPPIRE_SELECTOR_H__
+#define __PSPPIRE_SELECTOR_H__
+
+
+#include <glib.h>
+#include <glib-object.h>
+#include <gtk/gtkbutton.h>
+#include <gtk/gtkarrow.h>
+#include <gtk/gtktreemodel.h>
+#include <gtk/gtktreemodelfilter.h>
+
+G_BEGIN_DECLS
+
+#define PSPPIRE_SELECTOR_TYPE            (psppire_selector_get_type ())
+#define PSPPIRE_SELECTOR(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), PSPPIRE_SELECTOR_TYPE, PsppireSelector))
+#define PSPPIRE_SELECTOR_CLASS(class)    (G_TYPE_CHECK_CLASS_CAST ((class), \
+    PSPPIRE_SELECTOR_TYPE, PsppireSelectorClass))
+#define PSPPIRE_IS_SELECTOR(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
+    PSPPIRE_SELECTOR_TYPE))
+#define PSPPIRE_IS_SELECTOR_CLASS(class) (G_TYPE_CHECK_CLASS_TYPE ((class), \
+    PSPPIRE_SELECTOR_TYPE))
+
+
+typedef struct _PsppireSelector       PsppireSelector;
+typedef struct _PsppireSelectorClass  PsppireSelectorClass;
+
+
+/* Function for appending selected items to the destination widget */
+typedef void SelectItemsFunc (GtkTreeIter iter,
+                             GtkWidget *dest,
+                             GtkTreeModel *source_model);
+
+
+/* Function to determine whether an item in MODEL, pointed to by ITER
+   is currently selected.
+
+   Returns TRUE if the item is currently selected, FALSE otherwise.
+ */
+typedef gboolean FilterItemsFunc (GtkTreeModel *model,
+                                 GtkTreeIter *iter,
+                                 PsppireSelector *selector);
+
+enum psppire_selector_dir
+  {
+    PSPPIRE_SELECTOR_SOURCE_TO_DEST,
+    PSPPIRE_SELECTOR_DEST_TO_SOURCE
+  };
+
+
+struct _PsppireSelector
+{
+  GtkButton parent;
+
+  /* <private> */
+  GtkWidget *arrow;
+
+  enum psppire_selector_dir direction;
+  GtkWidget *source;
+  GtkWidget *dest;
+
+
+  GtkTreeModelFilter *filtered_source;
+
+  SelectItemsFunc *select_items;
+  FilterItemsFunc *filter;
+};
+
+struct _PsppireSelectorClass
+{
+  GtkButtonClass parent_class;
+
+  /* This is a hash of Lists of FilterItemsFunc pointers, keyed by address of
+     the source widget */
+  GHashTable *source_hash;
+};
+
+GType      psppire_selector_get_type        (void);
+GtkWidget* psppire_selector_new             (void);
+void       psppire_selector_set_subjects    (PsppireSelector *,
+                                            GtkWidget *,
+                                            GtkWidget *,
+                                            SelectItemsFunc *,
+                                            FilterItemsFunc * );
+G_END_DECLS
+
+#endif /* __PSPPIRE_SELECTOR_H__ */