Change how Cairo is presented to Lua scripts.

Makes the whole thing a bit more stable and less weird.

3 files changed, 71 insertions, 71 deletions

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