adjust symbol (and component) dimensions based on current ports and labels of a custom component. leaves other symbols unchanged

Insert titles for bus select
 used once

Insert titles compatible with greater than 1 buswidth

Work out a label bounding box from symbol, return symbol with box added. The box has a margin Constants. componentLabelOffsetDistance around the label text outline. This function should be included at the end of any function that changes component or label position or orientation or shape.

the output is the rotation got from the two inputs one after the other.

Function to generate a new symbol

get the max length (in pixels) of any of the Text strings in a list Hack - for now assume text char width is constant

Returns bounding box of a component based on component id

Returns all the bounding boxes of all components in the model

Returns the correct height and width of a transformed symbol as the tuple (real H, real W). Needed because H & W in Component do not change with rotation. NB Pos in component = Pos in Symbol and DOES change with rotation!

return (num inputs, num outputs, height, width)

obtain map from port IDs to port names for Custom Component. for other components types this returns empty map

Returns the location of an input port based on their portId

Returns the input port positions of the specified symbols in model

Returns the bounding box of the symbol associated with compId

Returns the bounding boxes of all symbol labels in the model

Based on a symbol and an edge, if the port is a mux select, return an extra offset required for the port (because of the weird shape of the mux)

Returns the location of an output port based on their portId

Returns the output port positions of the specified symbols in model

Returns the xy offset of a side relative to the symbol topleft

Returns the location of a given portId, with good efficiency

Returns all the port locations of the given components

Given a symbol and a port, it returns the offset of the port from the top left corner of the symbol

hack so that bounding box of splitwire, mergewires can be smaller height relative to ports

Gives the port positions to the render function, it gives the moving port pos where the mouse is, if there is a moving port

Decodes the component type into component labels

returns the true centre of a component's symbol

Returns the correct height and width of a transformed symbol as the tuple (real H, real W). Needed because H & W in Component do not change with rotation. NB Pos in component = Pos in Symbol and DOES change with rotation!

returns the true centre of a symbol, taking into account its current rotation

Returns the bounding box of a symbol. It is defined by the height and the width as well as the x,y position of the symbol. Works with rotation. For a rotated symbol, TopLeft = Pos, and H,W swapped in getrotatedHAndW

Returns color for the fill of a symbol (when not selected) Depends on theme and whether symbol is closed or not.

Given a symbol and a Port, it returns the orientation of the port

Returns the locations of a given input port and output port based on their portId

work out the initial (default) port placing for a componenent. also used for legacy circuits loaded without port layoiut info.

Returns true if an edge has the select port of a mux

make a completely new component

Needed because the I/Os of a custom component can be changed on anotehr sheet. When the component is reloaded its port maps will be inconsistent. This function keeps existing layout, and adds new I/Os or deletes old ones.

Modify port position maps to move an existing Lefthand port (index in the list) to the bottom edge

By default all output ports are on the right, input ports on lefty, (of a normal orientation symbol). A few symbols have ports on top or bottom as defined here. Note that custom components can have ports positioned by user.

Generates a new list of ports of specified type