[134] | 1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- |
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| 2 | * |
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| 3 | * Copyright (C) 2007 William Jon McCann <mccann@jhu.edu> |
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| 4 | * Copyright (C) 2008 Red Hat, Inc. |
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| 5 | * |
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| 6 | * This program is free software; you can redistribute it and/or modify |
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| 7 | * it under the terms of the GNU General Public License as published by |
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| 8 | * the Free Software Foundation; either version 2 of the License, or |
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| 9 | * (at your option) any later version. |
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| 10 | * |
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| 11 | * This program is distributed in the hope that it will be useful, |
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | * GNU General Public License for more details. |
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| 15 | * |
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| 16 | * You should have received a copy of the GNU General Public License |
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| 17 | * along with this program; if not, write to the Free Software |
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| 18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
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| 19 | * |
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| 20 | * Written by: William Jon McCann <mccann@jhu.edu> |
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| 21 | * Ray Strode <rstrode@redhat.com> |
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| 22 | */ |
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| 23 | |
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| 24 | #include "config.h" |
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| 25 | |
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| 26 | #include <stdlib.h> |
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| 27 | #include <stdio.h> |
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| 28 | #include <unistd.h> |
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| 29 | #include <string.h> |
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| 30 | #include <errno.h> |
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| 31 | #include <dirent.h> |
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| 32 | #include <sys/stat.h> |
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| 33 | |
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| 34 | #include <glib.h> |
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| 35 | #include <glib/gi18n.h> |
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| 36 | #include <glib/gstdio.h> |
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| 37 | #include <gtk/gtk.h> |
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| 38 | |
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| 39 | #include "gdm-clock-widget.h" |
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| 40 | |
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| 41 | #define GDM_CLOCK_WIDGET_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GDM_TYPE_CLOCK_WIDGET, GdmClockWidgetPrivate)) |
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| 42 | |
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| 43 | struct GdmClockWidgetPrivate |
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| 44 | { |
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| 45 | GtkWidget *label; |
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| 46 | char *time_format; |
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| 47 | guint update_clock_id; |
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| 48 | guint should_show_seconds : 1; |
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| 49 | }; |
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| 50 | |
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| 51 | static void gdm_clock_widget_class_init (GdmClockWidgetClass *klass); |
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| 52 | static void gdm_clock_widget_init (GdmClockWidget *clock_widget); |
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| 53 | static void gdm_clock_widget_finalize (GObject *object); |
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| 54 | static gboolean update_timeout_cb (GdmClockWidget *clock); |
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| 55 | |
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| 56 | G_DEFINE_TYPE (GdmClockWidget, gdm_clock_widget, GTK_TYPE_ALIGNMENT) |
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| 57 | |
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| 58 | static char * |
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| 59 | get_time_format (GdmClockWidget *clock) |
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| 60 | { |
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| 61 | const char *time_format; |
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| 62 | const char *date_format; |
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| 63 | char *clock_format; |
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| 64 | char *result; |
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| 65 | |
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| 66 | time_format = clock->priv->should_show_seconds ? _("%l:%M:%S %p") : _("%l:%M %p"); |
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| 67 | /* translators: replace %e with %d if, when the day of the |
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| 68 | * month as a decimal number is a single digit, it |
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| 69 | * should begin with a 0 in your locale (e.g. "May |
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| 70 | * 01" instead of "May 1"). |
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| 71 | */ |
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| 72 | date_format = _("%a %b %e"); |
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| 73 | /* translators: reverse the order of these arguments |
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| 74 | * if the time should come before the |
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| 75 | * date on a clock in your locale. |
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| 76 | */ |
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| 77 | clock_format = g_strdup_printf (_("%1$s, %2$s"), |
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| 78 | date_format, |
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| 79 | time_format); |
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| 80 | |
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| 81 | result = g_locale_from_utf8 (clock_format, -1, NULL, NULL, NULL); |
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| 82 | g_free (clock_format); |
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| 83 | |
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| 84 | return result; |
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| 85 | } |
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| 86 | |
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| 87 | static void |
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| 88 | update_clock (GtkLabel *label, |
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| 89 | const char *format) |
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| 90 | { |
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| 91 | time_t t; |
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| 92 | struct tm *tm; |
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| 93 | char buf[256]; |
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| 94 | char *utf8; |
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| 95 | |
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| 96 | time (&t); |
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| 97 | tm = localtime (&t); |
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| 98 | if (tm == NULL) { |
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| 99 | g_warning ("Unable to get broken down local time"); |
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| 100 | return; |
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| 101 | } |
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| 102 | if (strftime (buf, sizeof (buf), format, tm) == 0) { |
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| 103 | g_warning ("Couldn't format time: %s", format); |
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| 104 | strcpy (buf, "???"); |
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| 105 | } |
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| 106 | utf8 = g_locale_to_utf8 (buf, -1, NULL, NULL, NULL); |
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| 107 | gtk_label_set_text (label, utf8); |
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| 108 | g_free (utf8); |
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| 109 | } |
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| 110 | |
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| 111 | static void |
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| 112 | set_clock_timeout (GdmClockWidget *clock, |
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| 113 | time_t now) |
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| 114 | { |
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| 115 | GTimeVal tv; |
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| 116 | int timeouttime; |
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| 117 | |
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| 118 | if (clock->priv->update_clock_id > 0) { |
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| 119 | g_source_remove (clock->priv->update_clock_id); |
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| 120 | clock->priv->update_clock_id = 0; |
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| 121 | } |
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| 122 | |
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| 123 | g_get_current_time (&tv); |
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| 124 | timeouttime = (G_USEC_PER_SEC - tv.tv_usec) / 1000 + 1; |
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| 125 | |
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| 126 | /* timeout of one minute if we don't care about the seconds */ |
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| 127 | if (! clock->priv->should_show_seconds) { |
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| 128 | timeouttime += 1000 * (59 - now % 60); |
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| 129 | } |
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| 130 | |
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| 131 | clock->priv->update_clock_id = g_timeout_add (timeouttime, |
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| 132 | (GSourceFunc)update_timeout_cb, |
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| 133 | clock); |
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| 134 | } |
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| 135 | |
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| 136 | static gboolean |
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| 137 | update_timeout_cb (GdmClockWidget *clock) |
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| 138 | { |
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| 139 | time_t new_time; |
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| 140 | |
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| 141 | time (&new_time); |
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| 142 | |
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| 143 | if (clock->priv->label != NULL) { |
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| 144 | update_clock (GTK_LABEL (clock->priv->label), |
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| 145 | clock->priv->time_format); |
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| 146 | } |
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| 147 | |
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| 148 | set_clock_timeout (clock, new_time); |
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| 149 | |
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| 150 | return FALSE; |
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| 151 | } |
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| 152 | |
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| 153 | static void |
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| 154 | remove_timeout (GdmClockWidget *clock) |
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| 155 | { |
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| 156 | if (clock->priv->update_clock_id > 0) { |
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| 157 | g_source_remove (clock->priv->update_clock_id); |
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| 158 | clock->priv->update_clock_id = 0; |
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| 159 | } |
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| 160 | } |
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| 161 | |
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| 162 | static void |
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| 163 | gdm_clock_widget_size_request (GtkWidget *widget, |
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| 164 | GtkRequisition *requisition) |
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| 165 | { |
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| 166 | PangoFontMetrics *metrics; |
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| 167 | PangoContext *context; |
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| 168 | int ascent; |
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| 169 | int descent; |
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| 170 | int padding; |
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| 171 | |
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| 172 | if (GTK_WIDGET_CLASS (gdm_clock_widget_parent_class)->size_request) { |
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| 173 | GTK_WIDGET_CLASS (gdm_clock_widget_parent_class)->size_request (widget, requisition); |
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| 174 | } |
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| 175 | |
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| 176 | gtk_widget_ensure_style (widget); |
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| 177 | context = gtk_widget_get_pango_context (widget); |
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| 178 | metrics = pango_context_get_metrics (context, |
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| 179 | widget->style->font_desc, |
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| 180 | pango_context_get_language (context)); |
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| 181 | |
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| 182 | ascent = pango_font_metrics_get_ascent (metrics); |
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| 183 | descent = pango_font_metrics_get_descent (metrics); |
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| 184 | padding = PANGO_PIXELS (ascent + descent) / 2.0; |
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| 185 | requisition->height += padding; |
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| 186 | |
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| 187 | pango_font_metrics_unref (metrics); |
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| 188 | } |
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| 189 | |
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| 190 | static void |
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| 191 | gdm_clock_widget_class_init (GdmClockWidgetClass *klass) |
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| 192 | { |
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| 193 | GObjectClass *object_class; |
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| 194 | GtkWidgetClass *widget_class; |
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| 195 | |
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| 196 | object_class = G_OBJECT_CLASS (klass); |
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| 197 | widget_class = GTK_WIDGET_CLASS (klass); |
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| 198 | |
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| 199 | object_class->finalize = gdm_clock_widget_finalize; |
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| 200 | widget_class->size_request = gdm_clock_widget_size_request; |
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| 201 | |
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| 202 | g_type_class_add_private (klass, sizeof (GdmClockWidgetPrivate)); |
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| 203 | } |
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| 204 | |
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| 205 | static void |
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| 206 | gdm_clock_widget_init (GdmClockWidget *widget) |
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| 207 | { |
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| 208 | GtkWidget *box; |
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| 209 | |
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| 210 | widget->priv = GDM_CLOCK_WIDGET_GET_PRIVATE (widget); |
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| 211 | |
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| 212 | box = gtk_hbox_new (FALSE, 6); |
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| 213 | gtk_widget_show (box); |
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| 214 | gtk_container_add (GTK_CONTAINER (widget), box); |
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| 215 | |
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| 216 | widget->priv->label = gtk_label_new (""); |
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| 217 | gtk_widget_show (widget->priv->label); |
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| 218 | gtk_box_pack_start (GTK_BOX (box), widget->priv->label, FALSE, FALSE, 0); |
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| 219 | |
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| 220 | widget->priv->time_format = get_time_format (widget); |
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| 221 | update_timeout_cb (widget); |
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| 222 | } |
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| 223 | |
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| 224 | static void |
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| 225 | gdm_clock_widget_finalize (GObject *object) |
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| 226 | { |
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| 227 | GdmClockWidget *clock_widget; |
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| 228 | |
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| 229 | g_return_if_fail (object != NULL); |
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| 230 | g_return_if_fail (GDM_IS_CLOCK_WIDGET (object)); |
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| 231 | |
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| 232 | clock_widget = GDM_CLOCK_WIDGET (object); |
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| 233 | |
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| 234 | g_return_if_fail (clock_widget->priv != NULL); |
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| 235 | |
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| 236 | remove_timeout (clock_widget); |
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| 237 | |
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| 238 | G_OBJECT_CLASS (gdm_clock_widget_parent_class)->finalize (object); |
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| 239 | } |
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| 240 | |
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| 241 | GtkWidget * |
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| 242 | gdm_clock_widget_new (void) |
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| 243 | { |
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| 244 | GObject *object; |
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| 245 | |
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| 246 | object = g_object_new (GDM_TYPE_CLOCK_WIDGET, |
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| 247 | NULL); |
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| 248 | |
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| 249 | return GTK_WIDGET (object); |
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| 250 | } |
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