Drawing modules with some sliders active causes other wires to be drawn incorrecctly.

[rafalcieslak]

Zooming-in at a more complex path (e.g. example3b) causes all wires to blink continously, apparently because of some incoherent draw mode being switched. This is affected by the canvas view position, some module guis, if are displayed within the canvas view, can cancel this effect.

[rafalcieslak]

Steps to reproduce:

• Start algaudio, preferably without SC.
• Create new Seq8 instance.
• Create new ADSR instance.
• Connect Seq8's gate to ADSR gate input.
• Move the canvas so that you can see Seq8, but ADSR is outside the view.

The wire connecting params will be drawn incorrectly.

[rafalcieslak]

Creating ADSR and then Seq8 will trigger this bug when it's Seq8 that's outside the view. This is probably linked to modulegui draw order.