forked from osmocom/wireshark
![Guy Harris](/assets/img/avatar_default.png)
they have LF at the end of the line on UN*X and CR/LF on Windows; hopefully this means that if a CR/LF version is checked in on Windows, the CRs will be stripped so that they show up only when checked out on Windows, not on UN*X. svn path=/trunk/; revision=11400
193 lines
5.7 KiB
C
193 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 "ui_util.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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#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 = 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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