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-rw-r--r--widgets/misc/e-cell-percent.c159
1 files changed, 159 insertions, 0 deletions
diff --git a/widgets/misc/e-cell-percent.c b/widgets/misc/e-cell-percent.c
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+/* -*- 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);