new abstract ECell subclass to be used as base class for popup ECells.

2001-02-25  Damon Chaplin  <damon@ximian.com>

	* e-cell-popup.c: new abstract ECell subclass to be used as base class
	for popup ECells.

	* e-cell-combo.c: subclass of ECellPopup which pops up a simple list
	of strings.

	* e-table-item.c: Renamed eti_row_diff() to e_table_item_row_diff() and
	made public, since the ECellPopup subclasses need it.

	* Makefile.am: added e-cell-popup.[hc] and e-cell-combo.[hc]

svn path=/trunk/; revision=8387

1 files changed, 93 insertions, 0 deletions

diff --git a/widgets/table/e-cell-popup.h b/widgets/table/e-cell-popup.h
new file mode 100644
index 0000000000..2ccfd730ae
--- /dev/null
+++ b/widgets/table/e-cell-popup.h
@@ -0,0 +1,93 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ * Author :
+ *  Damon Chaplin <damon@ximian.com>
+ *
+ * Copyright 2001, Ximian, Inc.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
+/*
+ * ECellPopup - an ECell used to support popup selections like a GtkCombo
+ * widget. It contains a child ECell, e.g. an ECellText, but when selected it
+ * displays an arrow on the right edge which the user can click to show a
+ * popup. It will support subclassing or signals so that different types of
+ * popup can be provided.
+ */
+
+#ifndef _E_CELL_POPUP_H_
+#define _E_CELL_POPUP_H_
+
+#include <libgnomeui/gnome-canvas.h>
+#include <gal/e-table/e-cell.h>
+
+#define E_CELL_POPUP_TYPE        (e_cell_popup_get_type ())
+#define E_CELL_POPUP(o)          (GTK_CHECK_CAST ((o), E_CELL_POPUP_TYPE, ECellPopup))
+#define E_CELL_POPUP_CLASS(k)    (GTK_CHECK_CLASS_CAST((k), E_CELL_POPUP_TYPE, ECellPopupClass))
+#define E_IS_CELL_POPUP(o)       (GTK_CHECK_TYPE ((o), E_CELL_POPUP_TYPE))
+#define E_IS_CELL_POPUP_CLASS(k) (GTK_CHECK_CLASS_TYPE ((k), E_CELL_POPUP_TYPE))
+
+typedef struct _ECellPopupView ECellPopupView;
+
+typedef struct {
+	ECell parent;
+
+	ECell *child;
+
+	/* This is TRUE if the popup window is shown for the cell being
+	   edited. While shown we display the arrow indented. */
+	gboolean	 popup_shown;
+
+	/* This is TRUE if the popup arrow is shown for the cell being edited.
+	   This is needed to stop the first click on the cell from popping up
+	   the popup window. We only popup the window after we have drawn the
+	   arrow. */
+	gboolean	 popup_arrow_shown;
+
+	/* The view in which the popup is shown. */
+	ECellPopupView	*popup_cell_view;
+
+	gint		 popup_view_col;
+	gint		 popup_row;
+} ECellPopup;
+
+
+typedef struct {
+	ECellClass parent_class;
+
+	/* Virtual function for subclasses to override. */
+	gint   	   (*popup)        (ECellPopup *ecp, GdkEvent *event);
+} ECellPopupClass;
+
+
+struct _ECellPopupView {
+	ECellView	 cell_view;
+
+	ECellView	*child_view;
+};
+
+
+GtkType    e_cell_popup_get_type		(void);
+ECell     *e_cell_popup_new			(void);
+
+/* Get and set the child ECell. */
+ECell	  *e_cell_popup_get_child		(ECellPopup	*ecp);
+void       e_cell_popup_set_child		(ECellPopup	*ecp,
+						 ECell		*child);
+
+#endif /* _E_CELL_POPUP_H_ */