forked from osmocom/wireshark
c3187174bf
to do this, I've added file_util.h to wiretap (would file_compat.h be a better name?), and provide compat_macros like eth_open() instead of open(). While at it, move other file related things there, like #include <io.h>, definition of O_BINARY and alike, so it's all in one place. deleted related things from config.h.win32 As of these massive changes, I'm almost certain that this will break the Unix build. I'll keep an eye on the buildbot so hopefully everything is working again soon. svn path=/trunk/; revision=16403
194 lines
5.7 KiB
C
194 lines
5.7 KiB
C
/* text_page.c
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*
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* $Id$
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*
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* Ulf Lamping
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 2000 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 <gtk/gtk.h>
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#include <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include "epan/filesystem.h"
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#include "text_page.h"
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#include "gui_utils.h"
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#include "compat_macros.h"
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#include "simple_dialog.h"
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#include "font_utils.h"
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#include "file_util.h"
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#define TEXT_KEY "txt_key"
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static void text_page_insert(GtkWidget *page, const char *buffer, int nchars);
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static void text_page_set_text(GtkWidget *page, const char *absolute_path);
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/*
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* Construct a simple text page widget from a file.
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*/
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GtkWidget * text_page_new(const char *absolute_path)
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{
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GtkWidget *page_vb, *txt_scrollw, *txt;
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page_vb = gtk_vbox_new(FALSE, 0);
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gtk_container_border_width(GTK_CONTAINER(page_vb), 1);
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txt_scrollw = scrolled_window_new(NULL, NULL);
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#if GTK_MAJOR_VERSION >= 2
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gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(txt_scrollw),
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GTK_SHADOW_IN);
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#endif
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gtk_box_pack_start(GTK_BOX(page_vb), txt_scrollw, TRUE, TRUE, 0);
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#if GTK_MAJOR_VERSION < 2
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gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(txt_scrollw),
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GTK_POLICY_NEVER, GTK_POLICY_ALWAYS);
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txt = gtk_text_new(NULL, NULL);
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gtk_text_set_editable(GTK_TEXT(txt), FALSE);
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gtk_text_set_word_wrap(GTK_TEXT(txt), TRUE);
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gtk_text_set_line_wrap(GTK_TEXT(txt), TRUE);
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#else
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gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(txt_scrollw),
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GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
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txt = gtk_text_view_new();
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gtk_text_view_set_editable(GTK_TEXT_VIEW(txt), FALSE);
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gtk_text_view_set_wrap_mode(GTK_TEXT_VIEW(txt), GTK_WRAP_WORD);
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gtk_text_view_set_cursor_visible(GTK_TEXT_VIEW(txt), FALSE);
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/* XXX: there seems to be no way to add a small border *around* the whole text,
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* so the text will be "bump" against the edges.
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* the following is only working for left and right edges,
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* there is no such thing for top and bottom :-( */
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/* gtk_text_view_set_left_margin(GTK_TEXT_VIEW(txt), 3); */
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/* gtk_text_view_set_right_margin(GTK_TEXT_VIEW(txt), 3); */
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#endif
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OBJECT_SET_DATA(page_vb, TEXT_KEY, txt);
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text_page_set_text(page_vb, absolute_path);
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gtk_container_add(GTK_CONTAINER(txt_scrollw), txt);
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gtk_widget_show(txt_scrollw);
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gtk_widget_show(txt);
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return page_vb;
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}
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/*
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* Insert some text to a text page.
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*/
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static void text_page_insert(GtkWidget *page, const char *buffer, int nchars)
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{
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GtkWidget *txt = OBJECT_GET_DATA(page, TEXT_KEY);
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#if GTK_MAJOR_VERSION < 2
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gtk_text_insert(GTK_TEXT(txt), user_font_get_regular(), NULL, NULL, buffer, nchars);
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#else
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GtkTextBuffer *buf= gtk_text_view_get_buffer(GTK_TEXT_VIEW(txt));
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GtkTextIter iter;
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gtk_text_buffer_get_end_iter(buf, &iter);
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gtk_widget_modify_font(GTK_WIDGET(txt), user_font_get_regular());
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if (!g_utf8_validate(buffer, -1, NULL))
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printf("Invalid utf8 encoding: %s\n", buffer);
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gtk_text_buffer_insert(buf, &iter, buffer, nchars);
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#endif
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}
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/*
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* Put the complete text file into a text page.
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*/
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static void text_page_set_text(GtkWidget *page, const char *absolute_path)
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{
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FILE *text_file;
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char line[4096+1]; /* XXX - size? */
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#if GTK_MAJOR_VERSION < 2
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GtkText *txt = GTK_TEXT(OBJECT_GET_DATA(page, TEXT_KEY));
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gtk_text_freeze(txt);
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#endif
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text_file = eth_fopen(absolute_path, "r");
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if (text_file != NULL) {
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while (fgets(line, sizeof line, text_file) != NULL) {
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text_page_insert(page, line, strlen(line));
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}
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if(ferror(text_file)) {
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "Error reading file \"%s\": %s",
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absolute_path, strerror(errno));
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}
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fclose(text_file);
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} else {
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simple_dialog(ESD_TYPE_ERROR, ESD_BTN_OK, "Could not open file \"%s\": %s",
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absolute_path, strerror(errno));
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}
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#if GTK_MAJOR_VERSION < 2
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gtk_text_thaw(txt);
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#endif
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}
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/**
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* Clear the text from the text page.
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*/
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static void text_page_clear(GtkWidget *page)
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{
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#if GTK_MAJOR_VERSION < 2
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GtkText *txt = GTK_TEXT(OBJECT_GET_DATA(page, TEXT_KEY));
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gtk_text_set_point(txt, 0);
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/* Keep GTK+ 1.2.3 through 1.2.6 from dumping core - see
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http://www.ethereal.com/lists/ethereal-dev/199912/msg00312.html and
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http://www.gnome.org/mailing-lists/archives/gtk-devel-list/1999-October/0051.shtml
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for more information */
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gtk_adjustment_set_value(txt->vadj, 0.0);
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gtk_text_forward_delete(txt, gtk_text_get_length(txt));
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#else
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GtkTextBuffer *buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(OBJECT_GET_DATA(page, TEXT_KEY)));
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gtk_text_buffer_set_text(buf, "", 0);
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#endif
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}
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/**
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* Redraw a single text page, e.g. to use a new font.
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*/
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void text_page_redraw(GtkWidget *page, const char *absolute_path)
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{
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#if GTK_MAJOR_VERSION < 2
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GtkWidget *txt = OBJECT_GET_DATA(page, TEXT_KEY);
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#endif
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#if GTK_MAJOR_VERSION < 2
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gtk_text_freeze(GTK_TEXT(txt));
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#endif
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text_page_clear(page);
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text_page_set_text(page, absolute_path);
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#if GTK_MAJOR_VERSION < 2
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gtk_text_thaw(GTK_TEXT(txt));
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#endif
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}
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