1 files changed, 184 insertions, 0 deletions
diff --git a/sediff/find_dialog.c b/sediff/find_dialog.c
new file mode 100644
index 0000000..7bc3c07
--- /dev/null
+++ b/sediff/find_dialog.c
@@ -0,0 +1,184 @@
+/**
+ *  @file
+ *  Display a dialog to let the user search through results.
+ *
+ *  @author Jeremy A. Mowery jmowery@tresys.com
+ *  @author Jason Tang jtang@tresys.com
+ *  @author Brandon Whalen bwhalen@tresys.com
+ *  @author Randy Wicks rwicks@tresys.com
+ *
+ *  Copyright (C) 2005-2007 Tresys Technology, LLC
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program; if not, write to the Free Software
+ *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#include <config.h>
+
+#include "find_dialog.h"
+#include "utilgui.h"
+
+#include <assert.h>
+#include <errno.h>
+#include <stdlib.h>
+#include <gdk/gdkkeysyms.h>
+#include <glade/glade.h>
+
+struct find_dialog
+{
+	toplevel_t *top;
+	GladeXML *xml;
+	/** offset to start searching from if searching up and the
+         *  start of the offset to select from */
+	gint start_offset;
+	/** the offset to start searching from if searching down and
+         *  the offset to end selecting from */
+	gint end_offset;
+	/** the main window */
+	GtkDialog *w;
+	GtkEntry *entry;
+	GtkRadioButton *forward, *reverse;
+};
+
+static void find_dialog_search(find_dialog_t * f)
+{
+	GtkTextView *view = toplevel_get_text_view(f->top);
+	GtkTextBuffer *tb = gtk_text_view_get_buffer(view);
+	GtkTextMark *mark = gtk_text_buffer_get_insert(tb);
+	GtkTextIter iter, start, end;
+	const gchar *search_text = gtk_entry_get_text(f->entry);
+	gboolean text_found;
+	/* if nothing is selected then start the search from the
+	 * cursor.  otherwise, if searching forward then start search
+	 * at the end of the selection, else set start to beginning of
+	 * selection */
+	if (!gtk_text_buffer_get_selection_bounds(tb, &start, &end)) {
+		gtk_text_buffer_get_iter_at_mark(tb, &iter, mark);
+	} else {
+		if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(f->forward))) {
+			iter = end;
+		} else {
+			iter = start;
+		}
+	}
+	if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(f->forward))) {
+		text_found = gtk_text_iter_forward_search(&iter, search_text, GTK_TEXT_SEARCH_VISIBLE_ONLY, &start, &end, NULL);
+		if (!text_found) {
+			/* wrap search */
+			gtk_text_buffer_get_start_iter(tb, &iter);
+			text_found =
+				gtk_text_iter_forward_search(&iter, search_text, GTK_TEXT_SEARCH_VISIBLE_ONLY, &start, &end, NULL);
+		}
+	} else {
+		text_found = gtk_text_iter_backward_search(&iter, search_text, GTK_TEXT_SEARCH_VISIBLE_ONLY, &start, &end, NULL);
+		if (!text_found) {
+			/* wrap search */
+			gtk_text_buffer_get_end_iter(tb, &iter);
+			text_found =
+				gtk_text_iter_backward_search(&iter, search_text, GTK_TEXT_SEARCH_VISIBLE_ONLY, &start, &end, NULL);
+		}
+	}
+	if (!text_found) {
+		GString *string = g_string_new("");
+		g_string_printf(string, "Text \"%s\" not found.", search_text);
+		util_message(GTK_WINDOW(f->w), GTK_MESSAGE_INFO, string->str);
+		g_string_free(string, TRUE);
+	} else {
+		gtk_text_view_scroll_to_iter(view, &start, 0.0, FALSE, 0.0, 0.5);
+		if (gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(f->forward))) {
+			gtk_text_buffer_select_range(tb, &end, &start);
+		} else {
+			gtk_text_buffer_select_range(tb, &start, &end);
+		}
+	}
+}
+
+static void find_dialog_on_response(GtkDialog * dialog __attribute__ ((unused)), gint response, gpointer user_data)
+{
+	find_dialog_t *f = (find_dialog_t *) user_data;
+	if (response == GTK_RESPONSE_CLOSE) {
+		gtk_widget_hide(GTK_WIDGET(f->w));
+	} else if (response == GTK_RESPONSE_OK) {
+		find_dialog_search(f);
+	}
+}
+
+static gboolean find_dialog_on_key_press_event(GtkWidget * widget __attribute__ ((unused)), GdkEventKey * event, gpointer user_data)
+{
+	find_dialog_t *f = (find_dialog_t *) user_data;
+	if (event->keyval == GDK_Escape) {
+		gtk_widget_hide(GTK_WIDGET(f->w));
+		return TRUE;
+	}
+	return FALSE;
+}
+
+static void find_dialog_on_entry_activate(GtkEntry * entry __attribute__ ((unused)), gpointer user_data)
+{
+	find_dialog_t *f = (find_dialog_t *) user_data;
+	find_dialog_search(f);
+}
+
+find_dialog_t *find_dialog_create(toplevel_t * top)
+{
+	find_dialog_t *f;
+	int error = 0;
+
+	if ((f = calloc(1, sizeof(*f))) == NULL) {
+		error = errno;
+		goto cleanup;
+	}
+	f->top = top;
+	f->xml = glade_xml_new(toplevel_get_glade_xml(f->top), "find_dialog", NULL);
+
+	f->w = GTK_DIALOG(glade_xml_get_widget(f->xml, "find_dialog"));
+	assert(f->w != NULL);
+	gtk_window_set_transient_for(GTK_WINDOW(f->w), toplevel_get_window(f->top));
+	g_signal_connect_swapped(G_OBJECT(f->w), "delete-event", G_CALLBACK(gtk_widget_hide_on_delete), f->w);
+	g_signal_connect(G_OBJECT(f->w), "response", G_CALLBACK(find_dialog_on_response), f);
+	g_signal_connect(G_OBJECT(f->w), "key-press-event", G_CALLBACK(find_dialog_on_key_press_event), f);
+
+	f->entry = GTK_ENTRY(glade_xml_get_widget(f->xml, "find entry"));
+	f->forward = GTK_RADIO_BUTTON(glade_xml_get_widget(f->xml, "find forward radio"));
+	f->reverse = GTK_RADIO_BUTTON(glade_xml_get_widget(f->xml, "find reverse radio"));
+	assert(f->entry != NULL && f->forward != NULL && f->reverse != NULL);
+
+	/* connect the text entry callback events */
+	g_signal_connect(G_OBJECT(f->entry), "activate", G_CALLBACK(find_dialog_on_entry_activate), f);
+
+      cleanup:
+	if (error != 0) {
+		find_dialog_destroy(&f);
+		errno = error;
+		return NULL;
+	}
+	return f;
+}
+
+void find_dialog_destroy(find_dialog_t ** f)
+{
+	if (f != NULL && *f != NULL) {
+		free(*f);
+		*f = NULL;
+	}
+}
+
+void find_dialog_show(find_dialog_t * f)
+{
+	gtk_widget_show(GTK_WIDGET(f->w));
+	gtk_widget_grab_focus(GTK_WIDGET(f->entry));
+	gtk_editable_set_position(GTK_EDITABLE(f->entry), -1);
+	gtk_editable_select_region(GTK_EDITABLE(f->entry), 0, -1);
+	gtk_window_present(GTK_WINDOW(f->w));
+}