307c0d70fb
It compiles with "./configure without options" on my Mac. Let's see what the buildbots have to say about it :-) svn path=/trunk/; revision=36161
432 lines
12 KiB
C
432 lines
12 KiB
C
/* font_utils.c
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* Utilities to use for font manipulation
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <gtk/gtk.h>
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#include <epan/packet.h>
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#include <epan/prefs.h>
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#ifdef _WIN32
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#include <windows.h>
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#include <tchar.h>
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#include <wsutil/unicode-utils.h>
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#endif
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#include "../simple_dialog.h"
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#include "gtk/main.h"
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#include "gtk/recent.h"
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#include "gtk/gtkglobals.h"
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#include "gtk/font_utils.h"
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#include "gtk/main_proto_draw.h"
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#include "gtk/follow_tcp.h"
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#include "gtk/new_packet_list.h"
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static PangoFontDescription *m_r_font, *m_b_font;
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/* Get the regular user font.
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*
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* @return the regular user font
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*/
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PangoFontDescription *user_font_get_regular(void)
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{
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return m_r_font;
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}
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/* Get the bold user font.
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*
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* @return the bold user font
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*/
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PangoFontDescription *user_font_get_bold(void)
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{
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return m_b_font;
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}
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static void
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set_fonts(PangoFontDescription *regular, PangoFontDescription *bold)
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{
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/* Yes, assert. The code that loads the font should check
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* for NULL and provide its own error message. */
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g_assert(m_r_font && m_b_font);
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m_r_font = regular;
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m_b_font = bold;
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}
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void
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view_zoom_in_cb(GtkWidget *w _U_, gpointer d _U_)
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{
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gint save_gui_zoom_level;
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save_gui_zoom_level = recent.gui_zoom_level;
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recent.gui_zoom_level++;
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switch (user_font_apply()) {
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case FA_SUCCESS:
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break;
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case FA_FONT_NOT_RESIZEABLE:
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/* "font_apply()" popped up an alert box. */
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recent.gui_zoom_level = save_gui_zoom_level; /* undo zoom */
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break;
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case FA_FONT_NOT_AVAILABLE:
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/* We assume this means that the specified size isn't available. */
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
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"Your current font isn't available in the next larger size.\n");
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recent.gui_zoom_level = save_gui_zoom_level; /* undo zoom */
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break;
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}
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}
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void
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view_zoom_out_cb(GtkWidget *w _U_, gpointer d _U_)
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{
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gint save_gui_zoom_level;
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save_gui_zoom_level = recent.gui_zoom_level;
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recent.gui_zoom_level--;
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switch (user_font_apply()) {
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case FA_SUCCESS:
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break;
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case FA_FONT_NOT_RESIZEABLE:
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/* "font_apply()" popped up an alert box. */
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recent.gui_zoom_level = save_gui_zoom_level; /* undo zoom */
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break;
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case FA_FONT_NOT_AVAILABLE:
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/* We assume this means that the specified size isn't available. */
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
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"Your current font isn't available in the next smaller size.\n");
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recent.gui_zoom_level = save_gui_zoom_level; /* undo zoom */
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break;
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}
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}
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void
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view_zoom_100_cb(GtkWidget *w _U_, gpointer d _U_)
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{
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gint save_gui_zoom_level;
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save_gui_zoom_level = recent.gui_zoom_level;
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recent.gui_zoom_level = 0;
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switch (user_font_apply()) {
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case FA_SUCCESS:
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break;
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case FA_FONT_NOT_RESIZEABLE:
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/* "font_apply()" popped up an alert box. */
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recent.gui_zoom_level = save_gui_zoom_level; /* undo zoom */
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break;
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case FA_FONT_NOT_AVAILABLE:
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/* We assume this means that the specified size isn't available.
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XXX - this "shouldn't happen". */
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
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"Your current font couldn't be reloaded at the size you selected.\n");
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recent.gui_zoom_level = save_gui_zoom_level; /* undo zoom */
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break;
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}
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}
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gboolean
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user_font_test(gchar *font_name)
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{
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PangoFontDescription *new_r_font, *new_b_font;
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new_r_font = pango_font_description_from_string(font_name);
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if (new_r_font == NULL) {
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/* Oops, that font didn't work.
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Tell the user, but don't tear down the font selection
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dialog, so that they can try again. */
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
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"The font you selected can't be loaded.");
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return FALSE;
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}
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new_b_font = pango_font_description_copy(new_r_font);
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pango_font_description_set_weight(new_b_font, PANGO_WEIGHT_BOLD);
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if (new_b_font == NULL) {
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/* Oops, that font didn't work.
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Tell the user, but don't tear down the font selection
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dialog, so that they can try again. */
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
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"The font you selected doesn't have a boldface version.");
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pango_font_description_free(new_r_font);
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return FALSE;
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}
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return TRUE;
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}
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/* Given a font name, construct the name of a version of that font with
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the current zoom factor applied. */
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static char *
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font_zoom(char *gui_font_name)
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{
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char *new_font_name;
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char *font_name_dup;
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char *font_name_p;
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long font_point_size_l;
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if (recent.gui_zoom_level == 0) {
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/* There is no zoom factor - just return the name, so that if
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this is GTK+ 1.2[.x] and the font name isn't an XLFD font
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name, we don't fail. */
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return g_strdup(gui_font_name);
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}
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font_name_dup = g_strdup(gui_font_name);
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/* find the start of the font_size string */
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font_name_p = strrchr(font_name_dup, ' ');
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*font_name_p = '\0';
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font_name_p++;
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/* calculate the new font size */
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font_point_size_l = strtol(font_name_p, NULL, 10);
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font_point_size_l += recent.gui_zoom_level;
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/* build a new font name */
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new_font_name = g_strdup_printf("%s %ld", font_name_dup, font_point_size_l);
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g_free(font_name_dup);
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return new_font_name;
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}
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fa_ret_t
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user_font_apply(void) {
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char *gui_font_name;
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PangoFontDescription *new_r_font, *new_b_font;
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PangoFontDescription *old_r_font = NULL, *old_b_font = NULL;
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/* convert font name to reflect the zoom level */
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gui_font_name = font_zoom(prefs.gui_font_name);
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if (gui_font_name == NULL) {
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/*
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* This means the font name isn't an XLFD font name.
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* We just report that for now as a font not available in
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* multiple sizes.
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*/
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK,
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"Your current font isn't available in any other sizes.\n");
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return FA_FONT_NOT_RESIZEABLE;
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}
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/* load normal and bold font */
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new_r_font = pango_font_description_from_string(gui_font_name);
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new_b_font = pango_font_description_copy(new_r_font);
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pango_font_description_set_weight(new_b_font, PANGO_WEIGHT_BOLD);
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if (new_r_font == NULL || new_b_font == NULL) {
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/* We're no longer using the new fonts; unreference them. */
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if (new_r_font != NULL)
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pango_font_description_free(new_r_font);
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if (new_b_font != NULL)
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pango_font_description_free(new_b_font);
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g_free(gui_font_name);
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/* We let our caller pop up a dialog box, as the error message
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depends on the context (did they zoom in or out, or did they
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do something else? */
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return FA_FONT_NOT_AVAILABLE;
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}
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/* the font(s) seem to be ok */
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new_packet_list_set_font(new_r_font);
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set_ptree_font_all(new_r_font);
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old_r_font = m_r_font;
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old_b_font = m_b_font;
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set_fonts(new_r_font, new_b_font);
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/* Redraw the packet bytes windows. */
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redraw_packet_bytes_all();
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/* Redraw the "Follow TCP Stream" windows. */
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follow_tcp_redraw_all();
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/* We're no longer using the old fonts; unreference them. */
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if (old_r_font != NULL)
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pango_font_description_free(old_r_font);
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if (old_b_font != NULL)
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pango_font_description_free(old_b_font);
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g_free(gui_font_name);
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return FA_SUCCESS;
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}
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#ifdef _WIN32
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#define NAME_BUFFER_LEN 32
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static char appfontname[128] = "tahoma 8";
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static void
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set_app_font_gtk2(const char *fontname)
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{
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GtkSettings *settings;
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if (fontname != NULL && *fontname == 0) return;
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settings = gtk_settings_get_default();
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if (fontname == NULL) {
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g_object_set(G_OBJECT(settings), "gtk-font-name", appfontname, NULL);
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} else {
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GtkWidget *w;
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PangoFontDescription *pfd;
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PangoContext *pc;
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PangoFont *pfont;
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w = gtk_label_new(NULL);
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pfd = pango_font_description_from_string(fontname);
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pc = gtk_widget_get_pango_context(w);
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pfont = pango_context_load_font(pc, pfd);
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if (pfont != NULL) {
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g_strlcpy(appfontname, fontname, 128);
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appfontname[127] = '\0';
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g_object_set(G_OBJECT(settings), "gtk-font-name", appfontname, NULL);
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}
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gtk_widget_destroy(w);
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pango_font_description_free(pfd);
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}
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}
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static char *default_windows_menu_fontspec_gtk2(void)
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{
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gchar *fontspec = NULL;
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NONCLIENTMETRICS ncm;
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memset(&ncm, 0, sizeof ncm);
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ncm.cbSize = sizeof ncm;
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if (SystemParametersInfo(SPI_GETNONCLIENTMETRICS, ncm.cbSize, &ncm, 0)) {
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HDC screen = GetDC(0);
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double y_scale = 72.0 / GetDeviceCaps(screen, LOGPIXELSY);
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int point_size = (int) (ncm.lfMenuFont.lfHeight * y_scale);
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if (point_size < 0) point_size = -point_size;
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fontspec = g_strdup_printf("%s %d", ncm.lfMenuFont.lfFaceName,
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point_size);
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ReleaseDC(0, screen);
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}
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return fontspec;
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}
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static void try_to_get_windows_font_gtk2(void)
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{
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gchar *fontspec;
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fontspec = default_windows_menu_fontspec_gtk2();
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if (fontspec != NULL) {
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int match = 0;
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PangoFontDescription *pfd;
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PangoFont *pfont;
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PangoContext *pc;
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GtkWidget *w;
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pfd = pango_font_description_from_string(fontspec);
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w = gtk_label_new(NULL);
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pc = gtk_widget_get_pango_context(w);
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pfont = pango_context_load_font(pc, pfd);
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match = (pfont != NULL);
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pango_font_description_free(pfd);
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g_object_unref(G_OBJECT(pc));
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gtk_widget_destroy(w);
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if (match) set_app_font_gtk2(fontspec);
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g_free(fontspec);
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}
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}
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#endif /* _WIN32 */
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void font_init(void)
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{
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#ifdef _WIN32
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/* try to load the application font for GTK2 */
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try_to_get_windows_font_gtk2();
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#endif
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/* Try to load the regular and boldface fixed-width fonts */
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m_r_font = pango_font_description_from_string(prefs.gui_font_name);
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m_b_font = pango_font_description_copy(m_r_font);
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pango_font_description_set_weight(m_b_font, PANGO_WEIGHT_BOLD);
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if (m_r_font == NULL || m_b_font == NULL) {
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/* XXX - pop this up as a dialog box? no */
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if (m_r_font == NULL) {
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fprintf(stderr, "wireshark: Warning: font %s not found - defaulting to Monospace 9\n",
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prefs.gui_font_name);
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} else {
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pango_font_description_free(m_r_font);
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}
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if (m_b_font == NULL) {
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fprintf(stderr, "wireshark: Warning: bold font %s not found - defaulting"
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" to Monospace 9\n", prefs.gui_font_name);
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} else {
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pango_font_description_free(m_b_font);
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}
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if ((m_r_font = pango_font_description_from_string("Monospace 9")) == NULL)
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{
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fprintf(stderr, "wireshark: Error: font Monospace 9 not found\n");
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exit(1);
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}
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if ((m_b_font = pango_font_description_copy(m_r_font)) == NULL) {
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fprintf(stderr, "wireshark: Error: font Monospace 9 bold not found\n");
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exit(1);
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}
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g_free(prefs.gui_font_name);
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pango_font_description_set_weight(m_b_font, PANGO_WEIGHT_BOLD);
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prefs.gui_font_name = g_strdup("Monospace 9");
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}
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/* Call this for the side-effects that set_fonts() produces */
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set_fonts(m_r_font, m_b_font);
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}
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