Added 'VMime Viewer' example.

2 files changed, 308 insertions, 0 deletions

diff --git a/examples/viewer/Makefile b/examples/viewer/Makefile
new file mode 100644
index 00000000..20ad72ca
--- /dev/null
+++ b/examples/viewer/Makefile
@@ -0,0 +1,18 @@
+
+COMPILER=g++
+CFLAGS=-g -I ../.. `pkg-config --cflags gtk+-2.0`
+LDFLAGS=-I ../.. `pkg-config --libs gtk+-2.0`
+
+
+viewer: viewer.o ../../libvmime-debug.a
+	$(COMPILER) $(LDFLAGS) -o viewer viewer.o ../../libvmime-debug.a
+
+viewer.o: viewer.cpp
+	$(COMPILER) $(CFLAGS) -c -o viewer.o viewer.cpp
+
+../../libvmime-debug.a:
+	@echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+	@echo "!  You must build VMime library before compiling the example  !"
+	@echo "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"
+	@false
+
diff --git a/examples/viewer/viewer.cpp b/examples/viewer/viewer.cpp
new file mode 100644
index 00000000..37077112
--- /dev/null
+++ b/examples/viewer/viewer.cpp
@@ -0,0 +1,290 @@
+//
+// VMime library (http://vmime.sourceforge.net)
+// Copyright (C) 2002-2005 Vincent Richard <[email protected]>
+//
+// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+//
+
+//
+// EXAMPLE DESCRIPTION:
+// ====================
+// A simple MIME viewer to show all the components of a message.
+// The user interface is written using GTK+ 2.6.
+//
+// For more information, please visit:
+// http://vmime.sourceforge.net/
+//
+
+#include <iostream>
+#include <fstream>
+#include <vector>
+
+#include <gtk/gtk.h>
+
+#include "vmime/vmime.hpp"
+#include "vmime/platforms/posix/posixHandler.hpp"
+
+
+
+GtkWidget* window = NULL;
+GtkWidget* treeView = NULL;
+GtkWidget* textArea = NULL;
+
+GtkTreeStore* treeModel = NULL;
+
+vmime::message* currentMessage = NULL;
+
+
+
+void insertRowInModel(GtkTreeStore* model, const vmime::component* comp, GtkTreeIter* parent = NULL)
+{
+	GtkTreeIter iter;
+
+	gtk_tree_store_append(model, &iter, parent);
+	gtk_tree_store_set(model, &iter, 0, typeid(*comp).name(), 1, comp, -1);
+
+	const std::vector <const vmime::component*> children = comp->getChildComponents();
+
+	for (int i = 0 ; i < children.size() ; ++i)
+	{
+		insertRowInModel(model, children[i], &iter);
+	}
+}
+
+
+void updateTreeView()
+{
+	GtkTreeStore* model = GTK_TREE_STORE(gtk_tree_view_get_model(GTK_TREE_VIEW(treeView)));
+
+	g_object_ref(model);
+	gtk_tree_view_set_model(GTK_TREE_VIEW(treeView), NULL);
+
+	gtk_tree_store_clear(model);
+
+	insertRowInModel(model, currentMessage);
+
+	gtk_tree_view_set_model(GTK_TREE_VIEW(treeView), GTK_TREE_MODEL(model));
+	g_object_unref(model);
+}
+
+
+static void treeViewSelChanged(GtkTreeView* treeView, gpointer userData)
+{
+	GtkTreePath* path = NULL;
+	GtkTreeViewColumn* col = NULL;
+
+	gtk_tree_view_get_cursor(treeView, &path, &col);
+
+	GtkTreeIter iter;
+	gtk_tree_model_get_iter(GTK_TREE_MODEL(treeModel), &iter, path);
+
+	vmime::component* comp = NULL;
+	gtk_tree_model_get(GTK_TREE_MODEL(treeModel), &iter, 1, &comp, -1);
+
+	GtkTextBuffer* textBuffer = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textArea));
+	GtkTextIter start, end;
+
+	gtk_text_buffer_get_iter_at_offset(textBuffer, &start, comp->getParsedOffset());
+	gtk_text_buffer_get_iter_at_offset(textBuffer, &end, comp->getParsedOffset() + comp->getParsedLength());
+
+	gtk_text_buffer_select_range(textBuffer, &start, &end);
+
+	gtk_text_view_scroll_to_iter(GTK_TEXT_VIEW(textArea), &start, 0.0, FALSE, 0.0, 0.0);
+
+	gtk_tree_path_free(path);
+}
+
+
+static void destroy(GtkWidget* widget, gpointer data)
+{
+	gtk_main_quit();
+}
+
+
+void openFile(const std::string& filename)
+{
+	std::ifstream file;
+	file.open(filename.c_str(), std::ios::in | std::ios::binary);
+
+	if (!file)
+	{
+		std::cerr << "Can't open file '" << filename << "'." << std::endl;
+		return;
+	}
+
+	vmime::string data;
+	char buffer[16384];
+
+	do
+	{
+		file.read(buffer, sizeof(buffer));
+		data += vmime::string(buffer, file.gcount());
+	}
+	while (file.gcount());
+
+	vmime::message* msg = new vmime::message();
+	msg->parse(data);
+
+	delete (currentMessage);
+	currentMessage = msg;
+
+	char* convData = g_convert_with_fallback(data.c_str(), data.length(),
+		"UTF-8", "ISO-8859-1", "?", NULL, NULL, NULL);
+
+	if (convData == NULL)
+	{
+		gtk_text_buffer_set_text(gtk_text_view_get_buffer(GTK_TEXT_VIEW(textArea)),
+			"GLib UTF-8 conversion error.", -1);
+	}
+	else
+	{
+		gtk_text_buffer_set_text(gtk_text_view_get_buffer(GTK_TEXT_VIEW(textArea)),
+			convData, strlen(convData));
+
+		g_free(convData);
+	}
+
+	updateTreeView();
+}
+
+
+static void onFileOpen()
+{
+	GtkWidget* dlg = gtk_file_chooser_dialog_new
+		("Open Message File", GTK_WINDOW(window), GTK_FILE_CHOOSER_ACTION_OPEN,
+		 GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
+		 GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
+		 NULL);
+
+	if (gtk_dialog_run(GTK_DIALOG(dlg)) == GTK_RESPONSE_ACCEPT)
+	{
+		char* filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dlg));
+
+		openFile(filename);
+
+		g_free(filename);
+	}
+
+	gtk_widget_destroy(dlg);
+}
+
+
+
+// UI definitions
+static const GtkActionEntry uiActions[] =
+{
+	{ "FileMenu", NULL, "_File" },
+	{ "FileOpen", GTK_STOCK_OPEN, "_Open...", "<control>O", NULL, G_CALLBACK(onFileOpen) },
+	{ "FileExit", GTK_STOCK_QUIT, "_Exit", "<control>Q", NULL, G_CALLBACK(gtk_main_quit) }
+};
+
+static const char* uiDefinition =
+	"<ui>" \
+	"	<menubar name=\"MainMenuBar\">" \
+	"		<menu action=\"FileMenu\">" \
+	"			<menuitem action=\"FileOpen\"/>" \
+	"			<menuitem action=\"FileExit\"/>" \
+	"		</menu>" \
+	"	</menubar>" \
+	"</ui>";
+
+
+int main(int argc, char* argv[])
+{
+	// VMime initialization
+	vmime::platformDependant::setHandler<vmime::platforms::posix::posixHandler>();
+
+	// GTK+ initialization
+	gtk_init(&argc, &argv);
+
+	// Create a new window
+	window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+
+	gtk_window_set_default_size(GTK_WINDOW(window), 800, 550);
+	gtk_window_set_title(GTK_WINDOW(window), "VMime Viewer Example");
+
+	g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(destroy), NULL);
+
+	GtkWidget* vbox = gtk_vbox_new(FALSE, 0);
+	gtk_container_add(GTK_CONTAINER(window), vbox);
+
+	// Menubar
+	GtkActionGroup* actionGroup = gtk_action_group_new ("Actions");
+	gtk_action_group_add_actions(actionGroup, uiActions, G_N_ELEMENTS(uiActions), NULL);
+
+	GtkUIManager* uiManager = gtk_ui_manager_new();
+	gtk_ui_manager_insert_action_group(uiManager, actionGroup, 1);
+	gtk_ui_manager_add_ui_from_string(uiManager, uiDefinition, -1, NULL);
+
+	GtkWidget* menuBar = gtk_ui_manager_get_widget(uiManager, "/MainMenuBar");
+
+	gtk_box_pack_start(GTK_BOX(vbox), menuBar, FALSE, FALSE, 0);
+
+	// Horizontal Pane
+	GtkWidget* hpane = gtk_hpaned_new();
+	gtk_box_pack_start(GTK_BOX(vbox), hpane, TRUE, TRUE, 0);
+
+	// Tree View
+	treeModel = gtk_tree_store_new(2, G_TYPE_STRING, G_TYPE_POINTER);
+
+	treeView = gtk_tree_view_new();
+
+	g_signal_connect(G_OBJECT(treeView), "cursor-changed", G_CALLBACK(treeViewSelChanged), NULL);
+
+	GtkWidget* scroll = gtk_scrolled_window_new(NULL, NULL);
+
+	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
+	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll), GTK_SHADOW_IN);
+	gtk_container_add(GTK_CONTAINER(scroll), treeView);
+
+	gtk_paned_add1(GTK_PANED(hpane), scroll);
+
+	GtkTreeViewColumn* col = gtk_tree_view_column_new();
+	gtk_tree_view_column_set_title(col, "Component Name");
+	gtk_tree_view_append_column(GTK_TREE_VIEW(treeView), col);
+
+	GtkCellRenderer* renderer = gtk_cell_renderer_text_new();
+
+	gtk_tree_view_column_pack_start(col, renderer, TRUE);
+	gtk_tree_view_column_add_attribute(col, renderer, "text", 0);
+
+	gtk_tree_view_set_model(GTK_TREE_VIEW(treeView), GTK_TREE_MODEL(treeModel));
+	g_object_unref(treeModel);
+
+	gtk_widget_set_size_request(treeView, 200, 100);
+
+	// Text Area
+	textArea = gtk_text_view_new();
+
+	gtk_text_view_set_editable(GTK_TEXT_VIEW(textArea), FALSE);
+
+	scroll = gtk_scrolled_window_new(NULL, NULL);
+
+	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC);
+	gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll), GTK_SHADOW_IN);
+	gtk_container_add(GTK_CONTAINER(scroll), textArea);
+
+	gtk_paned_add2(GTK_PANED(hpane), scroll);
+
+	// Show main window
+	gtk_widget_show_all(window);
+
+	// GTK main loop
+	gtk_main();
+
+	return 0;
+}
+
+