use the new ECellText methods to get the text and set the value.

2001-10-22  Damon Chaplin  <damon@ximian.com>

	* e-cell-date-edit.c (e_cell_date_edit_set_popup_values):
	(e_cell_date_edit_update_cell): use the new ECellText methods to get
	the text and set the value.

	* e-cell-percent.c: new subclass of ECellText to display & edit a
	percentage value.

svn path=/trunk/; revision=13916

1 files changed, 159 insertions, 0 deletions

diff --git a/widgets/misc/e-cell-percent.c b/widgets/misc/e-cell-percent.c
new file mode 100644
index 0000000000..e1e14212e6
--- /dev/null
+++ b/widgets/misc/e-cell-percent.c
@@ -0,0 +1,159 @@
+/* -*- 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
+ */
+
+/*
+ * ECellPercent - a subclass of ECellText used to show an integer percentage
+ * in an ETable.
+ */
+
+#include <config.h>
+
+#include <ctype.h>
+
+#include <sys/time.h>
+#include <unistd.h>
+#include <gal/util/e-util.h>
+#include <libgnomeui/gnome-messagebox.h>
+#include <libgnomeui/gnome-stock.h>
+#include <libgnome/gnome-i18n.h>
+
+#include "e-cell-percent.h"
+
+#define PARENT_TYPE e_cell_text_get_type ()
+
+static ECellTextClass *parent_class;
+
+
+static char *
+ecp_get_text (ECellText *cell, ETableModel *model, int col, int row)
+{
+	int percent;
+	static char buffer[8];
+
+	percent = GPOINTER_TO_INT (e_table_model_value_at (model, col, row));
+
+	/* A -ve value means the property is not set. */
+	if (percent < 0) {
+		buffer[0] = '\0';
+	} else {
+		g_snprintf (buffer, sizeof (buffer), "%i%%", percent);
+	}
+
+	return buffer;
+}
+
+static void
+ecp_free_text(ECellText *cell, char *text)
+{
+	/* Do Nothing. */
+}
+
+/* FIXME: We need to set the "transient_for" property for the dialog. */
+static void
+show_percent_warning (void)
+{
+	GtkWidget *dialog;
+
+	dialog = gnome_message_box_new (_("The percent value must be between 0 and 100, inclusive"),
+					GNOME_MESSAGE_BOX_ERROR,
+					GNOME_STOCK_BUTTON_OK, NULL);
+	gtk_widget_show (dialog);
+}
+
+static void
+ecp_set_value (ECellText *cell, ETableModel *model, int col, int row,
+	       const char *text)
+{
+	int matched, percent;
+	gboolean empty = TRUE;
+	const char *p;
+
+	if (text) {
+		p = text;
+		while (*p) {
+			if (!isspace ((unsigned char) *p)) {
+				empty = FALSE;
+				break;
+			}
+			p++;
+		}
+	}
+
+	if (empty) {
+		percent = -1;
+	} else {
+		matched = sscanf (text, "%i", &percent);
+
+		if (matched != 1 || percent < 0 || percent > 100) {
+			show_percent_warning ();
+			return;
+		}
+	}
+
+	e_table_model_set_value_at (model, col, row,
+				    GINT_TO_POINTER (percent));
+}
+
+static void
+e_cell_percent_class_init (GtkObjectClass *object_class)
+{
+	ECellTextClass *ectc = (ECellTextClass *) object_class;
+
+	parent_class = gtk_type_class (PARENT_TYPE);
+
+	ectc->get_text  = ecp_get_text;
+	ectc->free_text = ecp_free_text;
+	ectc->set_value = ecp_set_value;
+}
+
+static void
+e_cell_percent_init (GtkObject *object)
+{
+}
+
+/**
+ * e_cell_percent_new:
+ * @fontname: font to be used to render on the screen
+ * @justify: Justification of the string in the cell.
+ *
+ * Creates a new ECell renderer that can be used to render an integer
+ * percentage that comes from the model.  The value returned from the model is
+ * interpreted as being an int.
+ *
+ * See ECellText for other features.
+ * 
+ * Returns: an ECell object that can be used to render numbers.
+ */
+ECell *
+e_cell_percent_new (const char *fontname, GtkJustification justify)
+{
+	ECellPercent *ecn = gtk_type_new (e_cell_percent_get_type ());
+
+	e_cell_text_construct (E_CELL_TEXT(ecn), fontname, justify);
+      
+	return (ECell *) ecn;
+}
+
+E_MAKE_TYPE (e_cell_percent, "ECellPercent", ECellPercent,
+	     e_cell_percent_class_init, e_cell_percent_init, PARENT_TYPE);