![Guy Harris](/assets/img/avatar_default.png)
the ui directory. (Perhaps some other files that would be used by all flavors of Wireshark, for any GUI toolkit or for someting such as ncurses, and not for any command-line tool such as TShark, should be moved there as well.) Shuffle some #includes to put the "ui/XXX.h" includes together. svn path=/trunk/; revision=40529
156 lines
4.6 KiB
C
156 lines
4.6 KiB
C
/* text_page_utils.c
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* Construct a simple text page widget from a file.
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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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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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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 <string.h>
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#include <stdio.h>
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#include <errno.h>
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#include <gtk/gtk.h>
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#include "epan/filesystem.h"
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#include "ui/simple_dialog.h"
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#include <wsutil/file_util.h>
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#include "ui/gtk/text_page_utils.h"
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#include "ui/gtk/gui_utils.h"
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#include "ui/gtk/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_set_border_width(GTK_CONTAINER(page_vb), 1);
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txt_scrollw = scrolled_window_new(NULL, NULL);
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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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gtk_box_pack_start(GTK_BOX(page_vb), txt_scrollw, TRUE, TRUE, 0);
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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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g_object_set_data(G_OBJECT(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 = g_object_get_data(G_OBJECT(page), TEXT_KEY);
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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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#if GTK_CHECK_VERSION(3,0,0)
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gtk_widget_override_font(GTK_WIDGET(txt), user_font_get_regular());
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#else
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gtk_widget_modify_font(GTK_WIDGET(txt), user_font_get_regular());
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#endif
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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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}
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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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text_file = ws_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, (int) 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, g_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, g_strerror(errno));
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}
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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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GtkTextBuffer *buf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(g_object_get_data(G_OBJECT(page), TEXT_KEY)));
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gtk_text_buffer_set_text(buf, "", 0);
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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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text_page_clear(page);
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text_page_set_text(page, absolute_path);
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}
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