Give lua a minimal gui.

svn path=/trunk/; revision=17150

plugins/lua/Makefile.am

@@ -33,6 +33,7 @@ lua_la_SOURCES = \
 	lua_tree.c \
 	lua_pinfo.c \
 	lua_tap.c \
+	lua_gui.c \
 	packet-lua.c \
 	packet-lua.h \
 	plugin.c

plugins/lua/lua_gui.c

@@ -0,0 +1,125 @@
+/*
+ *  lua_gui.c
+ *  
+ *
+ *  Created by L. E. G. O. on 2006/02/04.
+ *  Copyright 2006 __MyCompanyName__. All rights reserved.
+ *
+ */
+
+#include "packet-lua.h"
+
+LUA_CLASS_DEFINE(TextWindow,TEXT_WINDOW,NOP)
+
+static const funnel_ops_t* ops = NULL;
+
+static int TextWindow_new(lua_State* L) {
+    const gchar* title;
+    TextWindow tw;
+    
+    if (!ops) {
+        luaL_error(L,"GUI system not available");
+        return 0;
+    }
+    
+    title = luaL_optstring(L,1,"Untitled Window");
+    tw = ops->new_text_window(title);
+    pushTextWindow(L,tw);
+    
+    return 1;
+}
+
+static int TextWindow_set_text(lua_State* L) {
+    TextWindow tw = shiftTextWindow(L,1);
+    const gchar* text = luaL_checkstring(L,1);
+
+    if (!text) return 0;
+    
+    ops->set_text(tw,text);
+    
+    pushTextWindow(L,tw);
+    return 1;
+}
+
+static int TextWindow_append_text(lua_State* L) {
+    TextWindow tw = shiftTextWindow(L,1);
+    const gchar* text = luaL_checkstring(L,1);
+    
+    if (!text) return 0;
+    
+    ops->append_text(tw,text);
+    
+    pushTextWindow(L,tw);
+    return 1;
+}
+
+static int TextWindow_prepend_text(lua_State* L) {
+    TextWindow tw = shiftTextWindow(L,1);
+    const gchar* text = luaL_checkstring(L,1);
+    
+    if (!text) return 0;
+    
+    ops->prepend_text(tw,text);
+    
+    pushTextWindow(L,tw);
+    return 1;
+}
+
+static int TextWindow_clear_text(lua_State* L) {
+    TextWindow tw = shiftTextWindow(L,1);
+    
+    ops->clear_text(tw);
+    
+    pushTextWindow(L,tw);
+    return 1;
+}
+
+static int TextWindow_get_text(lua_State* L) {
+    TextWindow tw = shiftTextWindow(L,1);
+    const gchar* text = ops->get_text(tw);
+    
+    lua_pushstring(L,text);
+    return 1;
+}
+
+static int TextWindow_gc(lua_State* L) {
+    TextWindow tw = shiftTextWindow(L,1);
+    
+    ops->destroy_text_window(tw);
+    return 1;
+}
+
+
+static const luaL_reg TextWindow_methods[] = {
+    {"new", TextWindow_new},
+    {"set", TextWindow_set_text},
+    {"append", TextWindow_append_text},
+    {"prepend", TextWindow_prepend_text},
+    {"clear", TextWindow_clear_text},
+    {0, 0}
+};
+
+static const luaL_reg TextWindow_meta[] = {
+    {"__tostring", TextWindow_get_text},
+    {"__GC", TextWindow_gc},
+    {0, 0}
+};
+
+int TextWindow_register(lua_State* L) {
+    
+    ops = funnel_get_funnel_ops();
+    
+    luaL_openlib(L, TEXT_WINDOW, TextWindow_methods, 0);
+    luaL_newmetatable(L, TEXT_WINDOW);
+    luaL_openlib(L, 0, TextWindow_meta, 0);
+    lua_pushliteral(L, "__index");
+    lua_pushvalue(L, -3);
+    lua_rawset(L, -3);
+    lua_pushliteral(L, "__metatable");
+    lua_pushvalue(L, -3);
+    lua_rawset(L, -3);
+    lua_pop(L, 1);
+    
+    return 1;
+}
+

plugins/lua/lua_tvb.c

@@ -239,7 +239,7 @@ static int ByteArray_tostring(lua_State* L) {
 static int Tvb_new_real (lua_State *L);
 
 static const luaL_reg ByteArray_methods[] = {
-    {"new",           ByteArray_new},
+    {"new", ByteArray_new},
     {"len", ByteArray_len},
     {"prepend", ByteArray_prepend},
     {"append", ByteArray_append},

plugins/lua/packet-lua.c

@@ -39,6 +39,18 @@ tvbuff_t* lua_tvb;
 int lua_malformed;
 dissector_handle_t lua_data_handle;
 
+
+const gchar* lua_shiftstring(lua_State* L, int i) {
+    const gchar* p = luaL_checkstring(L, i);
+
+    if (p) {
+        lua_remove(L,i);
+        return p;
+    } else {
+        return NULL;
+    }
+}
+
 static int lua_format_date(lua_State* LS) {
     lua_Number time = luaL_checknumber(LS,1);
     nstime_t then;
@@ -292,6 +304,9 @@ static int init_error_handler(lua_State* L) {
 
 static void init_lua(void) {
     if ( ! lua_initialized ) {
+
+        TextWindow_register(L);
+        
         GString* tap_error = lua_register_all_taps();
         
         if ( tap_error ) {

plugins/lua/packet-lua.h

@@ -47,6 +47,7 @@
 #include <epan/filesystem.h>
 #include <epan/report_err.h>
 #include <epan/emem.h>
+#include <epan/funnel.h>
 
 #define LUA_DISSECTORS_TABLE "dissectors"
 #define LUA_INIT_ROUTINES "init_routines"
@@ -166,6 +167,9 @@ typedef struct _eth_tap {
     gboolean registered;
 }* Tap;
 
+#define TEXT_WINDOW "TextWindow"
+typedef funnel_text_window_t* TextWindow;
+
 #define NOP
 
 /*
@@ -242,12 +246,16 @@ LUA_CLASS_DECLARE(ProtoItem,ITEM);
 LUA_CLASS_DECLARE(Dissector,DISSECTOR);
 LUA_CLASS_DECLARE(DissectorTable,DISSECTOR_TABLE);
 LUA_CLASS_DECLARE(Address,ADDRESS);
+LUA_CLASS_DECLARE(TextWindow,TEXT_WINDOW);
 
 extern void dissect_lua(tvbuff_t* tvb, packet_info* pinfo, proto_tree* tree);
 extern int lua_tap_packet(void *tapdata, packet_info *pinfo, epan_dissect_t *edt, const void *data _U_);
 extern void lua_tap_reset(void *tapdata);
 extern void lua_tap_draw(void *tapdata);
 
+extern const gchar* lua_shiftstring(lua_State* L,int idx);
+
+
 extern GString* lua_register_all_taps(void);
 extern void lua_prime_all_fields(proto_tree* tree);
 void lua_register_subtrees(void);