Patent ID: 8266516

Claim:
A controller apparatus for controlling display on a screen for editing a signal processing configuration, wherein the screen graphically represents a plurality of components each having terminal nodes and wires connecting terminal nodes, which constitute the signal processing configuration, each of the terminal nodes being one of a plurality of kinds of terminal nodes, wherein kinds of the terminal nodes are classified depending on a kind of a signal inputted to/outputted from the terminal node or a standard of the terminal node, and wherein the same setting contents about display style set for each of the kinds of the terminal nodes are applied to the terminal nodes provided at all of the components represented on the screen, wherein one kind of the terminal nodes is set with a current display style, said controller apparatus comprising: a first display controller that performs display of each of the terminal nodes being represented in a display style set for each of the kinds of the terminal nodes; a second display controller that performs display of each of the wires being represented in a display style set for each of the wires; a wire adder that adds, when there is an instruction to add a wire, a wire according to the instruction and sets a display style of the added wire based on a display style set for a kind of a predetermined terminal node to which the added wire is connected so that the added wire is also represented on the screen in the set display style; a first style changer that i) changes, when there is an instruction to change a display style for the one kind of the terminal nodes from the current display style to a changed terminal node display style, the display style for the one kind of the terminal nodes according to the instruction, and ii) changes a display style of a wire, the wire a connected to the one kind of the terminal nodes and b) set with a display style corresponding to the current display style, based on the changed terminal node display style; and a second style changer that changes, when there is an instruction to change a display style of a predetermined wire, the display style of the predetermined wire according to the instruction.