1 files changed, 87 insertions, 11 deletions
diff --git a/share/library/Passive/diode.lua b/share/library/Passive/diode.lua
index 06e9b16..4d155f7 100644
--- a/share/library/Passive/diode.lua
+++ b/share/library/Passive/diode.lua
@@ -1,41 +1,117 @@
--- Symbol name
+-- Symbol names
 local names =
 {
 	en = "Diode",
 	cs = "Dioda"
 }
 
+local names_zener =
+{
+	en = "Zener diode",
+	cs = "Zenerova dioda"
+}
+
+local names_led =
+{
+	en = "Light-emitting diode",
+	cs = "Svítivá dioda"
+}
+
+local names_photo =
+{
+	en = "Photodiode",
+	cs = "Fotodioda"
+}
+
 -- Render area in base units (X1, Y1, X2, Y2)
-local area = {-2, -1, 2, 1}
+local area     = {-2, -1, 2, 1}
+local area_rad = {-2, -2.5, 2, 1}
 
--- Terminals
+-- Terminal points
 local terminals = {{-2, 0}, {2, 0}}
 
 -- Rendering
-local render_normal = function (cr)
+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.stroke ()
 
 	-- The vertical line
 	cr.move_to (1, 1)
 	cr.line_to (1, -1)
-	cr.stroke ()
 
-	-- The contacts
+	-- The terminals
 	cr.move_to (-2, 0)
-	cr.line_to (-1, 0)
+	cr.line_to (2, 0)
+
 	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, 0)
-	cr.line_to (2, 0)
 	cr.stroke ()
 end
 
+local render_arrow = function (cr)
+	cr.move_to (0, 0)
+	cr.line_to (0, -1.5)
+
+	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.fill ()
+end
+
+local render_radiation = function (cr)
+	cr.save ()
+	cr.translate (-0.4, 0)
+	render_arrow (cr)
+	cr.restore ()
+
+	cr.save ()
+	cr.translate (0.4, 0)
+	render_arrow (cr)
+	cr.restore ()
+end
+
+local render_led = function (cr)
+	render (cr)
+
+	cr.save ()
+	cr.translate (-0.3, -1.0)
+	cr.rotate (math.atan2 (1, 1))
+
+	render_radiation (cr)
+
+	cr.restore ()
+end
+
+local render_photo = function (cr)
+	render (cr)
+
+	cr.save ()
+	cr.translate (0.75, -2.05)
+	cr.rotate (math.atan2 (-1, -1))
+
+	render_radiation (cr)
+
+	cr.restore ()
+end
+
 -- Register the symbol
-logdiag.register ("Diode", names, area, terminals, render)
+logdiag.register ("Diode",      names,       area,     terminals, render)
+logdiag.register ("DiodeZener", names_zener, area,     terminals, render_zener)
+logdiag.register ("DiodeLED",   names_led,   area_rad, terminals, render_led)
+logdiag.register ("DiodePhoto", names_photo, area_rad, terminals, render_photo)