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-rw-r--r--liblogdiag/ld-lua.c185
-rw-r--r--share/library/Active/bipolar.lua50
-rw-r--r--share/library/Active/igfet.lua54
-rw-r--r--share/library/Active/jfet.lua38
-rw-r--r--share/library/Logical/and.lua24
-rw-r--r--share/library/Logical/not.lua22
-rw-r--r--share/library/Logical/or.lua46
-rw-r--r--share/library/Misc/cell.lua18
-rw-r--r--share/library/Misc/ground.lua18
-rw-r--r--share/library/Misc/junction.lua4
-rw-r--r--share/library/Misc/lamp.lua30
-rw-r--r--share/library/Misc/meters.lua44
-rw-r--r--share/library/Misc/signs.lua16
-rw-r--r--share/library/Misc/switch.lua14
-rw-r--r--share/library/Misc/terminal.lua8
-rw-r--r--share/library/Misc/voltage-source.lua24
-rw-r--r--share/library/Passive/capacitor.lua18
-rw-r--r--share/library/Passive/diode.lua68
-rw-r--r--share/library/Passive/inductor.lua16
-rw-r--r--share/library/Passive/resistor.lua64
20 files changed, 386 insertions, 375 deletions
diff --git a/liblogdiag/ld-lua.c b/liblogdiag/ld-lua.c
index d16f327..18bf9ce 100644
--- a/liblogdiag/ld-lua.c
+++ b/liblogdiag/ld-lua.c
@@ -2,7 +2,7 @@
* ld-lua.c
*
* This file is a part of logdiag.
- * Copyright Přemysl Janouch 2010 - 2011. All rights reserved.
+ * Copyright Přemysl Janouch 2010, 2011, 2012. All rights reserved.
*
* See the file LICENSE for licensing information.
*
@@ -44,9 +44,10 @@ struct _LdLuaPrivate
* -> The rendering function
*/
-#define LD_LUA_LIBRARY_NAME "logdiag"
-#define LD_LUA_DATA_INDEX LD_LUA_LIBRARY_NAME "_data"
-#define LD_LUA_SYMBOLS_INDEX LD_LUA_LIBRARY_NAME "_symbols"
+#define LD_LUA_LIBRARY_NAME "logdiag"
+#define LD_LUA_DATA_INDEX LD_LUA_LIBRARY_NAME "_data"
+#define LD_LUA_SYMBOLS_INDEX LD_LUA_LIBRARY_NAME "_symbols"
+#define LD_LUA_META_INDEX LD_LUA_LIBRARY_NAME "_meta"
/*
* LdLuaData:
@@ -88,7 +89,6 @@ static gboolean read_symbol_area (lua_State *L, int index, LdRectangle *area);
static gboolean read_terminals (lua_State *L, int index,
LdPointArray **terminals);
-static void push_cairo_object (lua_State *L, LdLuaDrawData *draw_data);
static gdouble get_cairo_scale (cairo_t *cr);
static int ld_lua_cairo_save (lua_State *L);
static int ld_lua_cairo_restore (lua_State *L);
@@ -164,6 +164,24 @@ ld_lua_class_init (LdLuaClass *klass)
}
static void
+push_cairo_metatable (lua_State *L)
+{
+ luaL_Reg *fn;
+
+ luaL_newmetatable (L, LD_LUA_META_INDEX);
+
+ /* Create a method table. */
+ lua_newtable (L);
+ for (fn = ld_lua_cairo_table; fn->name; fn++)
+ {
+ lua_pushcfunction (L, fn->func);
+ lua_setfield (L, -2, fn->name);
+ }
+
+ lua_setfield (L, -2, "__index");
+}
+
+static void
ld_lua_init (LdLua *self)
{
lua_State *L;
@@ -175,7 +193,7 @@ ld_lua_init (LdLua *self)
L = self->priv->L = lua_newstate (ld_lua_alloc, NULL);
g_return_if_fail (L != NULL);
- /* TODO: lua_atpanic () */
+ /* XXX: Might not be a bad idea to use lua_atpanic(). */
/* Load some safe libraries. */
lua_pushcfunction (L, luaopen_string);
@@ -191,7 +209,7 @@ ld_lua_init (LdLua *self)
luaL_register (L, LD_LUA_LIBRARY_NAME, ld_lua_logdiag_lib);
/* Store user data to the registry. */
- ud = lua_newuserdata (L, sizeof (LdLuaData));
+ ud = lua_newuserdata (L, sizeof *ud);
ud->self = self;
ud->load_callback = NULL;
ud->load_user_data = NULL;
@@ -201,6 +219,8 @@ ld_lua_init (LdLua *self)
/* Create an empty symbol table. */
lua_newtable (L);
lua_setfield (L, LUA_REGISTRYINDEX, LD_LUA_SYMBOLS_INDEX);
+
+ push_cairo_metatable (L);
}
static void
@@ -278,7 +298,7 @@ ld_lua_load_file (LdLua *self, const gchar *filename,
g_return_val_if_fail (filename != NULL, FALSE);
g_return_val_if_fail (callback != NULL, FALSE);
- /* XXX: If something from the following fails, Lua will call exit(). */
+ /* XXX: If something from the following fails, Lua will panic. */
lua_getfield (self->priv->L, LUA_REGISTRYINDEX, LD_LUA_DATA_INDEX);
ud = lua_touserdata (self->priv->L, -1);
lua_pop (self->priv->L, 1);
@@ -344,7 +364,7 @@ ld_lua_private_draw (LdLua *self, LdLuaSymbol *symbol, cairo_t *cr)
static int
ld_lua_private_draw_cb (lua_State *L)
{
- LdLuaDrawData *data;
+ LdLuaDrawData *data, *luadata;
data = lua_touserdata (L, -1);
@@ -357,9 +377,28 @@ ld_lua_private_draw_cb (lua_State *L)
lua_getfield (L, -1, "render");
luaL_checktype (L, -1, LUA_TFUNCTION);
- /* Call the function do draw the symbol. */
- push_cairo_object (L, data);
- lua_pcall (L, 1, 0, 0);
+ /* Create a Cairo wrapper object. */
+ luadata = lua_newuserdata (L, sizeof *data);
+ memcpy (luadata, data, sizeof *data);
+ lua_getfield (L, LUA_REGISTRYINDEX, LD_LUA_META_INDEX);
+ lua_setmetatable (L, -2);
+
+ /* Force it to stay alive for a bit longer. */
+ lua_pushvalue (L, -1);
+ lua_insert (L, 1);
+
+ /* Draw the symbol. */
+ if (lua_pcall (L, 1, 0, 0))
+ {
+ g_warning ("Lua error: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ }
+
+ /* Copy the userdata back and invalidate it, so that malicious Lua
+ * scripts won't succeed at drawing onto a long invalid Cairo context.
+ */
+ memcpy (data, luadata, sizeof *data);
+ memset (luadata, 0, sizeof *data);
return 0;
}
@@ -562,7 +601,7 @@ read_symbol_area (lua_State *L, int index, LdRectangle *area)
area->x = MIN (x1, x2);
area->y = MIN (y1, y2);
- area->width = ABS (x2 - x1);
+ area->width = ABS (x2 - x1);
area->height = ABS (y2 - y1);
lua_pop (L, 4);
@@ -622,32 +661,6 @@ read_terminals_fail:
/* ===== Cairo ============================================================= */
-static void
-push_cairo_object (lua_State *L, LdLuaDrawData *draw_data)
-{
- luaL_Reg *fn;
-
- /* Create a table. */
- lua_newtable (L);
-
- /* Add methods. */
- /* XXX: The light user data pointer gets invalid after the end of
- * "render" function invocation. If the script stores the "cr" object
- * in some global variable and then tries to reuse it the next time,
- * the application may go SIGSEGV.
- *
- * The solution is creating a full user data instead, referencing
- * the cairo object and dereferencing it upon garbage collection
- * of the user data object.
- */
- for (fn = ld_lua_cairo_table; fn->name; fn++)
- {
- lua_pushlightuserdata (L, draw_data);
- lua_pushcclosure (L, fn->func, 1);
- lua_setfield (L, -2, fn->name);
- }
-}
-
static gdouble
get_cairo_scale (cairo_t *cr)
{
@@ -657,6 +670,11 @@ get_cairo_scale (cairo_t *cr)
return dx;
}
+#define LD_LUA_CAIRO_GET_DATA \
+ data = luaL_checkudata (L, 1, LD_LUA_META_INDEX); \
+ if (!data->cr) \
+ return luaL_error (L, "Tried to use an invalid Cairo object");
+
#define LD_LUA_CAIRO_BEGIN(name) \
static int \
ld_lua_cairo_ ## name (lua_State *L) \
@@ -669,7 +687,7 @@ ld_lua_cairo_ ## name (lua_State *L) \
#define LD_LUA_CAIRO_TRIVIAL(name) \
LD_LUA_CAIRO_BEGIN (name) \
- data = lua_touserdata (L, lua_upvalueindex (1)); \
+ LD_LUA_CAIRO_GET_DATA \
cairo_ ## name (data->cr); \
LD_LUA_CAIRO_END (0)
@@ -685,7 +703,7 @@ LD_LUA_CAIRO_TRIVIAL (clip)
LD_LUA_CAIRO_TRIVIAL (clip_preserve)
LD_LUA_CAIRO_BEGIN (save)
- data = lua_touserdata (L, lua_upvalueindex (1));
+ LD_LUA_CAIRO_GET_DATA
if (data->save_count + 1)
{
data->save_count++;
@@ -694,7 +712,7 @@ LD_LUA_CAIRO_BEGIN (save)
LD_LUA_CAIRO_END (0)
LD_LUA_CAIRO_BEGIN (restore)
- data = lua_touserdata (L, lua_upvalueindex (1));
+ LD_LUA_CAIRO_GET_DATA
if (data->save_count)
{
data->save_count--;
@@ -703,24 +721,23 @@ LD_LUA_CAIRO_BEGIN (restore)
LD_LUA_CAIRO_END (0)
LD_LUA_CAIRO_BEGIN (get_line_width)
- data = lua_touserdata (L, lua_upvalueindex (1));
+ LD_LUA_CAIRO_GET_DATA
lua_pushnumber (L, cairo_get_line_width (data->cr)
* get_cairo_scale (data->cr));
LD_LUA_CAIRO_END (1)
LD_LUA_CAIRO_BEGIN (set_line_width)
- data = lua_touserdata (L, lua_upvalueindex (1));
- cairo_set_line_width (data->cr, luaL_checknumber (L, 1)
+ LD_LUA_CAIRO_GET_DATA
+ cairo_set_line_width (data->cr, luaL_checknumber (L, 2)
/ get_cairo_scale (data->cr));
LD_LUA_CAIRO_END (0)
LD_LUA_CAIRO_BEGIN (translate)
lua_Number x, y;
- data = lua_touserdata (L, lua_upvalueindex (1));
-
- x = luaL_checknumber (L, 1);
- y = luaL_checknumber (L, 2);
+ LD_LUA_CAIRO_GET_DATA
+ x = luaL_checknumber (L, 2);
+ y = luaL_checknumber (L, 3);
cairo_translate (data->cr, x, y);
LD_LUA_CAIRO_END (0)
@@ -728,10 +745,9 @@ LD_LUA_CAIRO_END (0)
LD_LUA_CAIRO_BEGIN (scale)
lua_Number sx, sy;
- data = lua_touserdata (L, lua_upvalueindex (1));
-
- sx = luaL_checknumber (L, 1);
- sy = luaL_checknumber (L, 2);
+ LD_LUA_CAIRO_GET_DATA
+ sx = luaL_checknumber (L, 2);
+ sy = luaL_checknumber (L, 3);
cairo_scale (data->cr, sx, sy);
LD_LUA_CAIRO_END (0)
@@ -739,18 +755,17 @@ LD_LUA_CAIRO_END (0)
LD_LUA_CAIRO_BEGIN (rotate)
lua_Number angle;
- data = lua_touserdata (L, lua_upvalueindex (1));
- angle = luaL_checknumber (L, 1);
+ LD_LUA_CAIRO_GET_DATA
+ angle = luaL_checknumber (L, 2);
cairo_rotate (data->cr, angle);
LD_LUA_CAIRO_END (0)
LD_LUA_CAIRO_BEGIN (move_to)
lua_Number x, y;
- data = lua_touserdata (L, lua_upvalueindex (1));
-
- x = luaL_checknumber (L, 1);
- y = luaL_checknumber (L, 2);
+ LD_LUA_CAIRO_GET_DATA
+ x = luaL_checknumber (L, 2);
+ y = luaL_checknumber (L, 3);
cairo_move_to (data->cr, x, y);
LD_LUA_CAIRO_END (0)
@@ -758,10 +773,9 @@ LD_LUA_CAIRO_END (0)
LD_LUA_CAIRO_BEGIN (line_to)
lua_Number x, y;
- data = lua_touserdata (L, lua_upvalueindex (1));
-
- x = luaL_checknumber (L, 1);
- y = luaL_checknumber (L, 2);
+ LD_LUA_CAIRO_GET_DATA
+ x = luaL_checknumber (L, 2);
+ y = luaL_checknumber (L, 3);
cairo_line_to (data->cr, x, y);
LD_LUA_CAIRO_END (0)
@@ -769,14 +783,13 @@ LD_LUA_CAIRO_END (0)
LD_LUA_CAIRO_BEGIN (curve_to)
lua_Number x1, y1, x2, y2, x3, y3;
- data = lua_touserdata (L, lua_upvalueindex (1));
-
- x1 = luaL_checknumber (L, 1);
- y1 = luaL_checknumber (L, 2);
- x2 = luaL_checknumber (L, 3);
- y2 = luaL_checknumber (L, 4);
- x3 = luaL_checknumber (L, 5);
- y3 = luaL_checknumber (L, 6);
+ LD_LUA_CAIRO_GET_DATA
+ x1 = luaL_checknumber (L, 2);
+ y1 = luaL_checknumber (L, 3);
+ x2 = luaL_checknumber (L, 4);
+ y2 = luaL_checknumber (L, 5);
+ x3 = luaL_checknumber (L, 6);
+ y3 = luaL_checknumber (L, 7);
cairo_curve_to (data->cr, x1, y1, x2, y2, x3, y3);
LD_LUA_CAIRO_END (0)
@@ -784,13 +797,12 @@ LD_LUA_CAIRO_END (0)
LD_LUA_CAIRO_BEGIN (arc)
lua_Number xc, yc, radius, angle1, angle2;
- data = lua_touserdata (L, lua_upvalueindex (1));
-
- xc = luaL_checknumber (L, 1);
- yc = luaL_checknumber (L, 2);
- radius = luaL_checknumber (L, 3);
- angle1 = luaL_checknumber (L, 4);
- angle2 = luaL_checknumber (L, 5);
+ LD_LUA_CAIRO_GET_DATA
+ xc = luaL_checknumber (L, 2);
+ yc = luaL_checknumber (L, 3);
+ radius = luaL_checknumber (L, 4);
+ angle1 = luaL_checknumber (L, 5);
+ angle2 = luaL_checknumber (L, 6);
cairo_arc (data->cr, xc, yc, radius, angle1, angle2);
LD_LUA_CAIRO_END (0)
@@ -798,13 +810,12 @@ LD_LUA_CAIRO_END (0)
LD_LUA_CAIRO_BEGIN (arc_negative)
lua_Number xc, yc, radius, angle1, angle2;
- data = lua_touserdata (L, lua_upvalueindex (1));
-
- xc = luaL_checknumber (L, 1);
- yc = luaL_checknumber (L, 2);
- radius = luaL_checknumber (L, 3);
- angle1 = luaL_checknumber (L, 4);
- angle2 = luaL_checknumber (L, 5);
+ LD_LUA_CAIRO_GET_DATA
+ xc = luaL_checknumber (L, 2);
+ yc = luaL_checknumber (L, 3);
+ radius = luaL_checknumber (L, 4);
+ angle1 = luaL_checknumber (L, 5);
+ angle2 = luaL_checknumber (L, 6);
cairo_arc_negative (data->cr, xc, yc, radius, angle1, angle2);
LD_LUA_CAIRO_END (0)
@@ -816,8 +827,8 @@ LD_LUA_CAIRO_BEGIN (show_text)
int width, height;
double x, y;
- data = lua_touserdata (L, lua_upvalueindex (1));
- text = luaL_checkstring (L, 1);
+ LD_LUA_CAIRO_GET_DATA
+ text = luaL_checkstring (L, 2);
layout = pango_cairo_create_layout (data->cr);
pango_layout_set_text (layout, text, -1);
diff --git a/share/library/Active/bipolar.lua b/share/library/Active/bipolar.lua
index 921772c..bac8786 100644
--- a/share/library/Active/bipolar.lua
+++ b/share/library/Active/bipolar.lua
@@ -26,50 +26,50 @@ local terminals = {{-2, 0}, {2, 2}, {2, -2}}
-- Rendering
local render = function (cr)
-- The terminals
- cr.move_to (-2, 0)
- cr.line_to (0, 0)
+ cr:move_to (-2, 0)
+ cr:line_to (0, 0)
- cr.move_to (0, 0.5)
- cr.line_to (2, 2)
+ cr:move_to (0, 0.5)
+ cr:line_to (2, 2)
- cr.move_to (0, -0.5)
- cr.line_to (2, -2)
+ cr:move_to (0, -0.5)
+ cr:line_to (2, -2)
-- The ohmic connection
- cr.move_to (0, -1)
- cr.line_to (0, 1)
+ cr:move_to (0, -1)
+ cr:line_to (0, 1)
- cr.stroke ()
+ cr:stroke ()
end
local render_npn = function (cr)
render (cr)
- cr.save ()
- cr.translate (0, 0.5)
- cr.rotate (math.atan2 (-2, 1.5))
+ cr:save ()
+ cr:translate (0, 0.5)
+ cr:rotate (math.atan2 (-2, 1.5))
- cr.move_to (-0.4, 0.8)
- cr.line_to (0, 1.4)
- cr.line_to (0.4, 0.8)
+ cr:move_to (-0.4, 0.8)
+ cr:line_to (0, 1.4)
+ cr:line_to (0.4, 0.8)
- cr.stroke ()
- cr.restore ()
+ cr:stroke ()
+ cr:restore ()
end
local render_pnp = function (cr)
render (cr)
- cr.save ()
- cr.translate (2, -2)
- cr.rotate (math.atan2 (2, 1.5))
+ cr:save ()
+ cr:translate (2, -2)
+ cr:rotate (math.atan2 (2, 1.5))
- cr.move_to (-0.4, 1.3)
- cr.line_to (0, 1.9)
- cr.line_to (0.4, 1.3)
+ cr:move_to (-0.4, 1.3)
+ cr:line_to (0, 1.9)
+ cr:line_to (0.4, 1.3)
- cr.stroke ()
- cr.restore ()
+ cr:stroke ()
+ cr:restore ()
end
-- Register the symbols
diff --git a/share/library/Active/igfet.lua b/share/library/Active/igfet.lua
index 8b5796d..3e17183 100644
--- a/share/library/Active/igfet.lua
+++ b/share/library/Active/igfet.lua
@@ -27,59 +27,59 @@ local terminals_p = {{-2, -1}, {2, 1}, {2, 0}, {2, -1}}
-- Rendering
local render = function (cr)
-- The terminals
- cr.move_to (-0.3, 1)
- cr.line_to (-0.3, -1)
+ cr:move_to (-0.3, 1)
+ cr:line_to (-0.3, -1)
- cr.move_to (0, 1)
- cr.line_to (2, 1)
+ cr:move_to (0, 1)
+ cr:line_to (2, 1)
- cr.move_to (0, 0)
- cr.line_to (2, 0)
+ cr:move_to (0, 0)
+ cr:line_to (2, 0)
- cr.move_to (0, -1)
- cr.line_to (2, -1)
+ cr:move_to (0, -1)
+ cr:line_to (2, -1)
-- Source, gate, drain
- cr.move_to (0, -1.5)
- cr.line_to (0, -0.5)
+ cr:move_to (0, -1.5)
+ cr:line_to (0, -0.5)
- cr.move_to (0, -0.3)
- cr.line_to (0, 0.3)
+ cr:move_to (0, -0.3)
+ cr:line_to (0, 0.3)
- cr.move_to (0, 0.5)
- cr.line_to (0, 1.5)
+ cr:move_to (0, 0.5)
+ cr:line_to (0, 1.5)
- cr.stroke ()
+ cr:stroke ()
end
local render_n = function (cr)
render (cr)
-- The left-side terminal
- cr.move_to (-2, 1)
- cr.line_to (-0.3, 1)
+ cr:move_to (-2, 1)
+ cr:line_to (-0.3, 1)
-- The arrow
- cr.move_to (0.9, -0.4)
- cr.line_to (0.4, 0)
- cr.line_to (0.9, 0.4)
+ cr:move_to (0.9, -0.4)
+ cr:line_to (0.4, 0)
+ cr:line_to (0.9, 0.4)
- cr.stroke ()
+ cr:stroke ()
end
local render_p = function (cr)
render (cr)
-- The left-side terminal
- cr.move_to (-2, -1)
- cr.line_to (-0.3, -1)
+ cr:move_to (-2, -1)
+ cr:line_to (-0.3, -1)
-- The arrow
- cr.move_to (0.4, -0.4)
- cr.line_to (0.9, 0)
- cr.line_to (0.4, 0.4)
+ cr:move_to (0.4, -0.4)
+ cr:line_to (0.9, 0)
+ cr:line_to (0.4, 0.4)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbols
diff --git a/share/library/Active/jfet.lua b/share/library/Active/jfet.lua
index ebe917a..5fb9d47 100644
--- a/share/library/Active/jfet.lua
+++ b/share/library/Active/jfet.lua
@@ -27,47 +27,47 @@ local terminals_p = {{-2, -1}, {2, 1}, {2, -1}}
-- Rendering
local render = function (cr)
-- The terminals
- cr.move_to (0, 1)
- cr.line_to (2, 1)
+ cr:move_to (0, 1)
+ cr:line_to (2, 1)
- cr.move_to (0, -1)
- cr.line_to (2, -1)
+ cr:move_to (0, -1)
+ cr:line_to (2, -1)
-- The ohmic connection
- cr.move_to (0, -1.5)
- cr.line_to (0, 1.5)
+ cr:move_to (0, -1.5)
+ cr:line_to (0, 1.5)
- cr.stroke ()
+ cr:stroke ()
end
local render_n = function (cr)
render (cr)
-- The left-side terminal
- cr.move_to (-2, 1)
- cr.line_to (0, 1)
+ cr:move_to (-2, 1)
+ cr:line_to (0, 1)
-- The arrow
- cr.move_to (-1, 0.6)
- cr.line_to (-0.5, 1)
- cr.line_to (-1, 1.4)
+ cr:move_to (-1, 0.6)
+ cr:line_to (-0.5, 1)
+ cr:line_to (-1, 1.4)
- cr.stroke ()
+ cr:stroke ()
end
local render_p = function (cr)
render (cr)
-- The left-side terminal
- cr.move_to (-2, -1)
- cr.line_to (0, -1)
+ cr:move_to (-2, -1)
+ cr:line_to (0, -1)
-- The arrow
- cr.move_to (-0.4, -0.6)
- cr.line_to (-1, -1)
- cr.line_to (-0.4, -1.4)
+ cr:move_to (-0.4, -0.6)
+ cr:line_to (-1, -1)
+ cr:line_to (-0.4, -1.4)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbols
diff --git a/share/library/Logical/and.lua b/share/library/Logical/and.lua
index da09cfe..8c4477f 100644
--- a/share/library/Logical/and.lua
+++ b/share/library/Logical/and.lua
@@ -17,23 +17,23 @@ local terminals = {{-4, -1}, {-4, 1}, {5, 0}}
-- Rendering
local render = function (cr)
-- The main shape
- cr.move_to (-2, -2)
- cr.line_to (1, -2)
- cr.arc (1, 0, 2, math.pi * 1.5, math.pi * 0.5)
- cr.line_to (-2, 2)
- cr.close_path ()
+ cr:move_to (-2, -2)
+ cr:line_to (1, -2)
+ cr:arc (1, 0, 2, math.pi * 1.5, math.pi * 0.5)
+ cr:line_to (-2, 2)
+ cr:close_path ()
-- The terminals
- cr.move_to (-4, -1)
- cr.line_to (-2, -1)
+ cr:move_to (-4, -1)
+ cr:line_to (-2, -1)
- cr.move_to (-4, 1)
- cr.line_to (-2, 1)
+ cr:move_to (-4, 1)
+ cr:line_to (-2, 1)
- cr.move_to (3, 0)
- cr.line_to (5, 0)
+ cr:move_to (3, 0)
+ cr:line_to (5, 0)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbol
diff --git a/share/library/Logical/not.lua b/share/library/Logical/not.lua
index 8153e4a..44e4cc3 100644
--- a/share/library/Logical/not.lua
+++ b/share/library/Logical/not.lua
@@ -17,23 +17,23 @@ local terminals = {{-4, 0}, {4, 0}}
-- Rendering
local render = function (cr)
-- The triangle
- cr.move_to (-2, -2)
- cr.line_to (2, 0)
- cr.line_to (-2, 2)
- cr.close_path ()
+ cr:move_to (-2, -2)
+ cr:line_to (2, 0)
+ cr:line_to (-2, 2)
+ cr:close_path ()
-- The circle
- cr.new_sub_path ()
- cr.arc (2.25, 0, 0.25, 0, 2 * math.pi)
+ cr:new_sub_path ()
+ cr:arc (2.25, 0, 0.25, 0, 2 * math.pi)
-- The terminals
- cr.move_to (-4, 0)
- cr.line_to (-2, 0)
+ cr:move_to (-4, 0)
+ cr:line_to (-2, 0)
- cr.move_to (2.5, 0)
- cr.line_to (4, 0)
+ cr:move_to (2.5, 0)
+ cr:line_to (4, 0)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbol
diff --git a/share/library/Logical/or.lua b/share/library/Logical/or.lua
index a7ff4bf..18aabab 100644
--- a/share/library/Logical/or.lua
+++ b/share/library/Logical/or.lua
@@ -17,38 +17,38 @@ local terminals = {{-4, -1}, {-4, 1}, {5, 0}}
-- Rendering
local render = function (cr)
-- The main shape
- cr.move_to (-2, -2)
- cr.line_to (0, -2)
- cr.curve_to (2, -2, 3, 0, 3, 0)
- cr.curve_to (3, 0, 2, 2, 0, 2)
- cr.line_to (-2, 2)
- cr.curve_to (-1, 1, -1, -1, -2, -2)
- cr.stroke ()
+ cr:move_to (-2, -2)
+ cr:line_to (0, -2)
+ cr:curve_to (2, -2, 3, 0, 3, 0)
+ cr:curve_to (3, 0, 2, 2, 0, 2)
+ cr:line_to (-2, 2)
+ cr:curve_to (-1, 1, -1, -1, -2, -2)
+ cr:stroke ()
-- The terminals
- cr.save ()
+ cr:save ()
-- Crop the contacts according to
-- the left side of the main shape
- cr.move_to (-4, 2)
- cr.line_to (-2, 2)
- cr.curve_to (-1, 1, -1, -1, -2, -2)
- cr.line_to (-4, -2)
- cr.close_path ()
- cr.clip ()
+ cr:move_to (-4, 2)
+ cr:line_to (-2, 2)
+ cr:curve_to (-1, 1, -1, -1, -2, -2)
+ cr:line_to (-4, -2)
+ cr:close_path ()
+ cr:clip ()
- cr.move_to (-4, -1)
- cr.line_to (-1, -1)
+ cr:move_to (-4, -1)
+ cr:line_to (-1, -1)
- cr.move_to (-4, 1)
- cr.line_to (-1, 1)
+ cr:move_to (-4, 1)
+ cr:line_to (-1, 1)
- cr.stroke ()
- cr.restore ()
+ cr:stroke ()
+ cr:restore ()
- cr.move_to (3, 0)
- cr.line_to (5, 0)
- cr.stroke ()
+ cr:move_to (3, 0)
+ cr:line_to (5, 0)
+ cr:stroke ()
end
-- Register the symbol
diff --git a/share/library/Misc/cell.lua b/share/library/Misc/cell.lua
index 8a6a575..541e44c 100644
--- a/share/library/Misc/cell.lua
+++ b/share/library/Misc/cell.lua
@@ -17,20 +17,20 @@ local terminals = {{-1, 0}, {1, 0}}
-- Rendering
local render = function (cr)
-- The vertical lines
- cr.move_to (-0.2, -1)
- cr.line_to (-0.2, 1)
+ cr:move_to (-0.2, -1)
+ cr:line_to (-0.2, 1)
- cr.move_to (0.2, -2)
- cr.line_to (0.2, 2)
+ cr:move_to (0.2, -2)
+ cr:line_to (0.2, 2)
-- The terminals
- cr.move_to (-1, 0)
- cr.line_to (-0.2, 0)
+ cr:move_to (-1, 0)
+ cr:line_to (-0.2, 0)
- cr.move_to (0.2, 0)
- cr.line_to (1, 0)
+ cr:move_to (0.2, 0)
+ cr:line_to (1, 0)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbol
diff --git a/share/library/Misc/ground.lua b/share/library/Misc/ground.lua
index 6d20b57..2209718 100644
--- a/share/library/Misc/ground.lua
+++ b/share/library/Misc/ground.lua
@@ -17,20 +17,20 @@ local terminals = {{0, -1}}
-- Rendering
local render = function (cr)
-- The vertical line
- cr.move_to (0, -1)
- cr.line_to (0, 0.5)
+ cr:move_to (0, -1)
+ cr:line_to (0, 0.5)
-- The horizontal lines
- cr.move_to (-1, 0.5)
- cr.line_to (1, 0.5)
+ cr:move_to (-1, 0.5)
+ cr:line_to (1, 0.5)
- cr.move_to (-0.75, 1.1)
- cr.line_to (0.75, 1.1)
+ cr:move_to (-0.75, 1.1)
+ cr:line_to (0.75, 1.1)
- cr.move_to (-0.5, 1.7)
- cr.line_to (0.5, 1.7)
+ cr:move_to (-0.5, 1.7)
+ cr:line_to (0.5, 1.7)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbol
diff --git a/share/library/Misc/junction.lua b/share/library/Misc/junction.lua
index 75fbafb..c7c399b 100644
--- a/share/library/Misc/junction.lua
+++ b/share/library/Misc/junction.lua
@@ -17,8 +17,8 @@ local terminals = {}
-- Rendering
local render = function (cr)
-- The disk
- cr.arc (0, 0, 0.3, 0, math.pi * 2)
- cr.fill ()
+ cr:arc (0, 0, 0.3, 0, math.pi * 2)
+ cr:fill ()
end
-- Register the symbol
diff --git a/share/library/Misc/lamp.lua b/share/library/Misc/lamp.lua
index f543bde..d6dd411 100644
--- a/share/library/Misc/lamp.lua
+++ b/share/library/Misc/lamp.lua
@@ -17,29 +17,29 @@ local terminals = {{-2, 0}, {2, 0}}
-- Rendering
local render = function (cr)
-- The circle
- cr.save ()
+ cr:save ()
- cr.arc (0, 0, 1, 0, 2 * math.pi)
- cr.stroke_preserve ()
- cr.clip ()
+ cr:arc (0, 0, 1, 0, 2 * math.pi)
+ cr:stroke_preserve ()
+ cr:clip ()
- cr.move_to (-1, -1)
- cr.line_to (1, 1)
+ cr:move_to (-1, -1)
+ cr:line_to (1, 1)
- cr.move_to (1, -1)
- cr.line_to (-1, 1)
+ cr:move_to (1, -1)
+ cr:line_to (-1, 1)
- cr.stroke ()
- cr.restore ()
+ cr:stroke ()
+ cr:restore ()
-- The terminals
- cr.move_to (-2, 0)
- cr.line_to (-1, 0)
+ cr:move_to (-2, 0)
+ cr:line_to (-1, 0)
- cr.move_to (1, 0)
- cr.line_to (2, 0)
+ cr:move_to (1, 0)
+ cr:line_to (2, 0)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbol
diff --git a/share/library/Misc/meters.lua b/share/library/Misc/meters.lua
index 55b6e28..1fb0394 100644
--- a/share/library/Misc/meters.lua
+++ b/share/library/Misc/meters.lua
@@ -35,45 +35,45 @@ local terminals = {{-2, 0}, {2, 0}, {0, -2}, {0, 2}}
-- Rendering
local render_A = function (cr)
-- The circle
- cr.arc (0, 0, 2, 0, math.pi * 2)
+ cr:arc (0, 0, 2, 0, math.pi * 2)
-- The letter A
- cr.move_to (-0.4, 0.5)
- cr.line_to (0, -0.5)
- cr.line_to (0.4, 0.5)
+ cr:move_to (-0.4, 0.5)
+ cr:line_to (0, -0.5)
+ cr:line_to (0.4, 0.5)
- cr.move_to (-0.3, 0.25)
- cr.line_to (0.3, 0.25)
+ cr:move_to (-0.3, 0.25)
+ cr:line_to (0.3, 0.25)
- cr.stroke ()
+ cr:stroke ()
end
local render_V = function (cr)
-- The circle
- cr.arc (0, 0, 2, 0, math.pi * 2)
+ cr:arc (0, 0, 2, 0, math.pi * 2)
-- The letter V
- cr.move_to (-0.4, -0.5)
- cr.line_to (0, 0.5)
- cr.line_to (0.4, -0.5)
+ cr:move_to (-0.4, -0.5)
+ cr:line_to (0, 0.5)
+ cr:line_to (0.4, -0.5)
- cr.stroke ()
+ cr:stroke ()
end
local render_ohm = function (cr)
-- The circle
- cr.arc (0, 0, 2, 0, math.pi * 2)
+ cr:arc (0, 0, 2, 0, math.pi * 2)
-- The capital letter omega
- cr.move_to (-0.5, 0.5)
- cr.line_to (-0.15, 0.5)
- cr.curve_to (-0.15, 0.5, -0.4, 0.3, -0.4, 0)
- cr.curve_to (-0.4, -0.25, -0.25, -0.5, 0, -0.5)
- cr.curve_to (0.25, -0.5, 0.4, -0.25, 0.4, 0)
- cr.curve_to (0.4, 0.3, 0.15, 0.5, 0.15, 0.5)
- cr.line_to (0.5, 0.5)
-
- cr.stroke ()
+ cr:move_to (-0.5, 0.5)
+ cr:line_to (-0.15, 0.5)
+ cr:curve_to (-0.15, 0.5, -0.4, 0.3, -0.4, 0)
+ cr:curve_to (-0.4, -0.25, -0.25, -0.5, 0, -0.5)
+ cr:curve_to (0.25, -0.5, 0.4, -0.25, 0.4, 0)
+ cr:curve_to (0.4, 0.3, 0.15, 0.5, 0.15, 0.5)
+ cr:line_to (0.5, 0.5)
+
+ cr:stroke ()
end
-- Register the symbols
diff --git a/share/library/Misc/signs.lua b/share/library/Misc/signs.lua
index d2efe45..158d9b2 100644
--- a/share/library/Misc/signs.lua
+++ b/share/library/Misc/signs.lua
@@ -26,21 +26,21 @@ local terminals = {}
-- Rendering
local render_plus = function (cr)
-- The plus sign
- cr.move_to (0, -0.4)
- cr.line_to (0, 0.4)
+ cr:move_to (0, -0.4)
+ cr:line_to (0, 0.4)
- cr.move_to (-0.4, 0)
- cr.line_to (0.4, 0)
+ cr:move_to (-0.4, 0)
+ cr:line_to (0.4, 0)
- cr.stroke ()
+ cr:stroke ()
end
local render_minus = function (cr)
-- The minus sign
- cr.move_to (-0.4, 0)
- cr.line_to (0.4, 0)
+ cr:move_to (-0.4, 0)
+ cr:line_to (0.4, 0)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbols
diff --git a/share/library/Misc/switch.lua b/share/library/Misc/switch.lua
index 2cae086..2d95b6b 100644
--- a/share/library/Misc/switch.lua
+++ b/share/library/Misc/switch.lua
@@ -17,17 +17,17 @@ local terminals = {{-2, 0}, {2, 0}}
-- Rendering
local render = function (cr)
-- The switch contact
- cr.move_to (1.3, -1.3)
- cr.line_to (-1, 0)
+ cr:move_to (1.3, -1.3)
+ cr:line_to (-1, 0)
-- The terminals
- cr.move_to (-2, 0)
- cr.line_to (-1, 0)
+ cr:move_to (-2, 0)
+ cr:line_to (-1, 0)
- cr.move_to (1, 0)
- cr.line_to (2, 0)
+ cr:move_to (1, 0)
+ cr:line_to (2, 0)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbol
diff --git a/share/library/Misc/terminal.lua b/share/library/Misc/terminal.lua
index 3d31537..4bc2f2f 100644
--- a/share/library/Misc/terminal.lua
+++ b/share/library/Misc/terminal.lua
@@ -17,13 +17,13 @@ local terminals = {{-1, 0}}
-- Rendering
local render = function (cr)
-- The circle
- cr.arc (0, 0, 0.3, 0, math.pi * 2)
+ cr:arc (0, 0, 0.3, 0, math.pi * 2)
-- The contact
- cr.move_to (-1, 0)
- cr.line_to (-0.3, 0)
+ cr:move_to (-1, 0)
+ cr:line_to (-0.3, 0)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbol
diff --git a/share/library/Misc/voltage-source.lua b/share/library/Misc/voltage-source.lua
index 456310b..9003364 100644
--- a/share/library/Misc/voltage-source.lua
+++ b/share/library/Misc/voltage-source.lua
@@ -26,35 +26,35 @@ local terminals = {{-2, 0}, {2, 0}, {0, -2}, {0, 2}}
-- Rendering
local render = function (cr)
-- The circle
- cr.arc (0, 0, 2, 0, math.pi * 2)
+ cr:arc (0, 0, 2, 0, math.pi * 2)
- cr.stroke ()
+ cr:stroke ()
end
local render_ac = function (cr)
render (cr)
-- The AC symbol
- cr.move_to (-1, 0.25)
- cr.curve_to (-0.4, -1.5, 0.4, 1.5, 1, -0.25)
+ cr:move_to (-1, 0.25)
+ cr:curve_to (-0.4, -1.5, 0.4, 1.5, 1, -0.25)
- cr.stroke ()
+ cr:stroke ()
end
local render_dc = function (cr)
render (cr)
-- The DC symbol
- cr.move_to (-1, -0.25)
- cr.line_to (1, -0.25)
+ cr:move_to (-1, -0.25)
+ cr:line_to (1, -0.25)
- cr.move_to (-1, 0.25)
- cr.line_to (-0.2, 0.25)
+ cr:move_to (-1, 0.25)
+ cr:line_to (-0.2, 0.25)
- cr.move_to (0.2, 0.25)
- cr.line_to (1, 0.25)
+ cr:move_to (0.2, 0.25)
+ cr:line_to (1, 0.25)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbols
diff --git a/share/library/Passive/capacitor.lua b/share/library/Passive/capacitor.lua
index 121b01d..bd8c408 100644
--- a/share/library/Passive/capacitor.lua
+++ b/share/library/Passive/capacitor.lua
@@ -17,20 +17,20 @@ local terminals = {{-2, 0}, {2, 0}}
-- Rendering
local render = function (cr)
-- The vertical lines
- cr.move_to (-0.2, -1)
- cr.line_to (-0.2, 1)
+ cr:move_to (-0.2, -1)
+ cr:line_to (-0.2, 1)
- cr.move_to (0.2, -1)
- cr.line_to (0.2, 1)
+ cr:move_to (0.2, -1)
+ cr:line_to (0.2, 1)
-- The terminals
- cr.move_to (-2, 0)
- cr.line_to (-0.2, 0)
+ cr:move_to (-2, 0)
+ cr:line_to (-0.2, 0)
- cr.move_to (0.2, 0)
- cr.line_to (2, 0)
+ cr:move_to (0.2, 0)
+ cr:line_to (2, 0)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbol
diff --git a/share/library/Passive/diode.lua b/share/library/Passive/diode.lua
index d480b46..46bfa99 100644
--- a/share/library/Passive/diode.lua
+++ b/share/library/Passive/diode.lua
@@ -45,79 +45,79 @@ local terminals = {{-2, 0}, {2, 0}}
-- Rendering
local render = function (cr)
-- The triangle
- cr.move_to (-1, -1)
- cr.line_to (1, 0)
- cr.line_to (-1, 1)
- cr.line_to (-1, -1)
+ cr:move_to (-1, -1)
+ cr:line_to (1, 0)
+ cr:line_to (-1, 1)
+ cr:line_to (-1, -1)
-- The vertical line
- cr.move_to (1, 1)
- cr.line_to (1, -1)
+ cr:move_to (1, 1)
+ cr:line_to (1, -1)
-- The terminals
- cr.move_to (-2, 0)
- cr.line_to (2, 0)
+ cr:move_to (-2, 0)
+ cr:line_to (2, 0)
- cr.stroke ()
+ cr:stroke ()
end
local render_zener = function (cr)
render (cr)
- cr.move_to (1, 1)
- cr.line_to (0.5, 1)
+ cr:move_to (1, 1)
+ cr:line_to (0.5, 1)
- cr.stroke ()
+ cr:stroke ()
end
local render_arrow = function (cr)
- cr.move_to (0, 0)
- cr.line_to (0, -1.5)
+ cr:move_to (0, 0)
+ cr:line_to (0, -1.5)
- cr.stroke ()
+ cr:stroke ()
- cr.move_to (-0.3, -0.7)
- cr.line_to (0, -1.5)
- cr.line_to (0.3, -0.7)
- cr.close_path ()
+ cr:move_to (-0.3, -0.7)
+ cr:line_to (0, -1.5)
+ cr:line_to (0.3, -0.7)
+ cr:close_path ()
- cr.fill ()
+ cr:fill ()
end
local render_radiation = function (cr)
- cr.save ()
- cr.translate (-0.4, 0)
+ cr:save ()
+ cr:translate (-0.4, 0)
render_arrow (cr)
- cr.restore ()
+ cr:restore ()
- cr.save ()
- cr.translate (0.4, 0)
+ cr:save ()
+ cr:translate (0.4, 0)
render_arrow (cr)
- cr.restore ()
+ cr:restore ()
end
local render_led = function (cr)
render (cr)
- cr.save ()
- cr.translate (-0.3, -1.0)
- cr.rotate (math.atan2 (1, 1))
+ cr:save ()
+ cr:translate (-0.3, -1.0)
+ cr:rotate (math.atan2 (1, 1))
render_radiation (cr)
- cr.restore ()
+ cr:restore ()
end
local render_photo = function (cr)
render (cr)
- cr.save ()
- cr.translate (0.75, -2.05)
- cr.rotate (math.atan2 (-1, -1))
+ cr:save ()
+ cr:translate (0.75, -2.05)
+ cr:rotate (math.atan2 (-1, -1))
render_radiation (cr)
- cr.restore ()
+ cr:restore ()
end
-- Register the symbol
diff --git a/share/library/Passive/inductor.lua b/share/library/Passive/inductor.lua
index b63a8f5..34a1cda 100644
--- a/share/library/Passive/inductor.lua
+++ b/share/library/Passive/inductor.lua
@@ -26,22 +26,22 @@ local terminals = {{-2, 0}, {2, 0}}
-- Rendering
local render = function (cr)
-- The arcs
- cr.arc (-1.5, 0, 0.5, math.pi, 0)
- cr.arc (-0.5, 0, 0.5, math.pi, 0)
- cr.arc (0.5, 0, 0.5, math.pi, 0)
- cr.arc (1.5, 0, 0.5, math.pi, 0)
+ cr:arc (-1.5, 0, 0.5, math.pi, 0)
+ cr:arc (-0.5, 0, 0.5, math.pi, 0)
+ cr:arc (0.5, 0, 0.5, math.pi, 0)
+ cr:arc (1.5, 0, 0.5, math.pi, 0)
- cr.stroke ()
+ cr:stroke ()
end
local render_core = function (cr)
render (cr)
-- The core
- cr.move_to (-2, -1)
- cr.line_to (2, -1)
+ cr:move_to (-2, -1)
+ cr:line_to (2, -1)
- cr.stroke ()
+ cr:stroke ()
end
-- Register the symbols
diff --git a/share/library/Passive/resistor.lua b/share/library/Passive/resistor.lua
index fdb1642..7c0b222 100644
--- a/share/library/Passive/resistor.lua
+++ b/share/library/Passive/resistor.lua
@@ -38,63 +38,63 @@ local terminals_pot = {{-2, 0}, {2, 0}, {2, -2}}
-- Rendering
local render = function (cr)
-- The rectangle
- cr.move_to (-1.5, -0.5)
- cr.line_to (1.5, -0.5)
- cr.line_to (1.5, 0.5)
- cr.line_to (-1.5, 0.5)
- cr.line_to (-1.5, -0.5)
+ cr:move_to (-1.5, -0.5)
+ cr:line_to (1.5, -0.5)
+ cr:line_to (1.5, 0.5)
+ cr:line_to (-1.5, 0.5)
+ cr:line_to (-1.5, -0.5)
-- The terminals
- cr.move_to (-2, 0)
- cr.line_to (-1.5, 0)
+ cr:move_to (-2, 0)
+ cr:line_to (-1.5, 0)
- cr.move_to (1.5, 0)
- cr.line_to (2, 0)
+ cr:move_to (1.5, 0)
+ cr:line_to (2, 0)
- cr.stroke ()
+ cr:stroke ()
end
local render_adj = function (cr)
render (cr)
-- The arrow
- cr.move_to (-1, 1)
- cr.line_to (1, -1)
+ cr:move_to (-1, 1)
+ cr:line_to (1, -1)
- cr.stroke ()
+ cr:stroke ()
- cr.save ()
- cr.translate (1.5, -1.5)
- cr.rotate (math.atan2 (1, 1))
+ cr:save ()
+ cr:translate (1.5, -1.5)
+ cr:rotate (math.atan2 (1, 1))
- cr.move_to (0, 0)
- cr.line_to (0.3, 0.8)
- cr.line_to (-0.3, 0.8)
- cr.close_path ()
+ cr:move_to (0, 0)
+ cr:line_to (0.3, 0.8)
+ cr:line_to (-0.3, 0.8)
+ cr:close_path ()
- cr.fill ()
- cr.restore ()
+ cr:fill ()
+ cr:restore ()
end
local render_pot = function (cr)
render (cr)
-- The contact
- cr.move_to (0, -2)
- cr.line_to (2, -2)
+ cr:move_to (0, -2)
+ cr:line_to (2, -2)
-- The arrow
- cr.move_to (0, -2)
- cr.line_to (0, -1)
+ cr:move_to (0, -2)
+ cr:line_to (0, -1)
- cr.stroke ()
+ cr:stroke ()
- cr.move_to (0, -0.5)
- cr.line_to (0.3, -1.3)
- cr.line_to (-0.3, -1.3)
- cr.close_path ()
+ cr:move_to (0, -0.5)
+ cr:line_to (0.3, -1.3)
+ cr:line_to (-0.3, -1.3)
+ cr:close_path ()
- cr.fill ()
+ cr:fill ()
end
-- Register the symbol
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-22 00:12:46 +0000