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1 /*
2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU Lesser General Public
4 * License as published by the Free Software Foundation; either
5 * version 2 of the License, or (at your option) version 3.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
10 * Lesser General Public License for more details.
11 *
12 * You should have received a copy of the GNU Lesser General Public
13 * License along with the program; if not, see <http://www.gnu.org/licenses/>
14 *
15 *
16 * Authors:
17 * Damon Chaplin <damon@ximian.com>
18 *
19 * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
20 *
21 */
22
23 /*
24 * ECellPercent - a subclass of ECellText used to show an integer percentage
25 * in an ETable.
26 */
27
28 #ifdef HAVE_CONFIG_H
29 #include <config.h>
30 #endif
31
32 #include <ctype.h>
33
34 #include <sys/time.h>
35 #include <unistd.h>
36 #include <stdio.h>
37 #include <glib/gi18n.h>
38
39 #include "e-cell-percent.h"
40
41 G_DEFINE_TYPE (ECellPercent, e_cell_percent, E_TYPE_CELL_TEXT)
42
43 static gchar *
44 ecp_get_text (ECellText *cell,
45 ETableModel *model,
46 gint col,
47 gint row)
48 {
49 gint percent;
50 static gchar buffer[8];
51
52 percent = GPOINTER_TO_INT (e_table_model_value_at (model, col, row));
53
54 /* A -ve value means the property is not set. */
55 if (percent < 0) {
56 buffer[0] = '\0';
57 } else {
58 g_snprintf (buffer, sizeof (buffer), "%i%%", percent);
59 }
60
61 return buffer;
62 }
63
64 static void
65 ecp_free_text (ECellText *cell,
66 gchar *text)
67 {
68 /* Do Nothing. */
69 }
70
71 /* FIXME: We need to set the "transient_for" property for the dialog. */
72 static void
73 show_percent_warning (void)
74 {
75 GtkWidget *dialog;
76
77 dialog = gtk_message_dialog_new (
78 NULL, 0,
79 GTK_MESSAGE_ERROR, GTK_BUTTONS_OK,
80 "%s", _("The percent value must be between 0 and 100, inclusive"));
81 gtk_dialog_run (GTK_DIALOG (dialog));
82 gtk_widget_destroy (dialog);
83 }
84
85 static void
86 ecp_set_value (ECellText *cell,
87 ETableModel *model,
88 gint col,
89 gint row,
90 const gchar *text)
91 {
92 gint matched, percent;
93 gboolean empty = TRUE;
94 const gchar *p;
95
96 if (text) {
97 p = text;
98 while (*p) {
99 if (!isspace ((guchar) *p)) {
100 empty = FALSE;
101 break;
102 }
103 p++;
104 }
105 }
106
107 if (empty) {
108 percent = -1;
109 } else {
110 matched = sscanf (text, "%i", &percent);
111
112 if (matched != 1 || percent < 0 || percent > 100) {
113 show_percent_warning ();
114 return;
115 }
116 }
117
118 e_table_model_set_value_at (
119 model, col, row,
120 GINT_TO_POINTER (percent));
121 }
122
123 static void
124 e_cell_percent_class_init (ECellPercentClass *ecpc)
125 {
126 ECellTextClass *ectc = (ECellTextClass *) ecpc;
127
128 ectc->get_text = ecp_get_text;
129 ectc->free_text = ecp_free_text;
130 ectc->set_value = ecp_set_value;
131 }
132
133 static void
134 e_cell_percent_init (ECellPercent *ecp)
135 {
136 }
137
138 /**
139 * e_cell_percent_new:
140 * @fontname: font to be used to render on the screen
141 * @justify: Justification of the string in the cell.
142 *
143 * Creates a new ECell renderer that can be used to render an integer
144 * percentage that comes from the model. The value returned from the model is
145 * interpreted as being an int.
146 *
147 * See ECellText for other features.
148 *
149 * Returns: an ECell object that can be used to render numbers.
150 */
151 ECell *
152 e_cell_percent_new (const gchar *fontname,
153 GtkJustification justify)
154 {
155 ECellPercent *ecn = g_object_new (E_TYPE_CELL_PERCENT, NULL);
156
157 e_cell_text_construct (E_CELL_TEXT (ecn), fontname, justify);
158
159 return (ECell *) ecn;
160 }