DrawTraceMode Class Reference

Mode for drawing by tracing over existing elements or guides. More...

#include <DrawTraceMode.h>

Inheritance diagram for DrawTraceMode:

Collaboration diagram for DrawTraceMode:

Instance Methods
(id)	- init [implementation]
(NSCursor *)	- cursor [implementation]
(void)	- applyTrace [implementation]
(void)	- moveLastPoint: [implementation]
(void)	- mouseDown: [implementation]
(void)	- mouseDraggedOrMoved:whileDown: [implementation]
(void)	- mouseDragged: [implementation]
	Forwards to the shared drag/move handler.
(void)	- mouseMoved: [implementation]
	Forwards to the shared drag/move handler.
(void)	- mouseUp: [implementation]
(void)	- setUp [implementation]
(void)	- cleanUp [implementation]
(NSString *)	- name [implementation]
Instance Methods inherited from Mode
(id)	- initWithPlayArea:forController:
(void)	- keyDown:
	No-op default implementation; subclasses override.
(void)	- drawRect:
	No-op default implementation; subclasses override.
(void)	- setNextMode:

Additional Inherited Members
Protected Attributes inherited from Mode
PlayArea *	playArea
Controller *	controller
Mode *	nextMode

Detailed Description

Mode for drawing by tracing over existing elements or guides.

Concrete implementation of DrawTraceMode behavior.

Definition at line 16 of file DrawTraceMode.h.

Method Documentation

applyTrace

- (void) applyTrace

implementation

Applies the in-progress trace path to the anchor pad and clears temp state.

Definition at line 47 of file DrawTraceMode.m.

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cleanUp

- (void) cleanUp

implementation

Commits any valid trace on exit; otherwise refreshes state.

Reimplemented from Mode.

Definition at line 240 of file DrawTraceMode.m.

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cursor

- (NSCursor *) cursor

implementation

Returns the crosshair cursor used while tracing.

Reimplemented from Mode.

Definition at line 40 of file DrawTraceMode.m.

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init

- (id) init

implementation

Initializes state for trace digitizing.

Reimplemented from Mode.

Definition at line 31 of file DrawTraceMode.m.

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mouseDown:

- (void) mouseDown: (NSEvent *) event

implementation

Starts or continues the trace; holds Shift for 90° snapping, Command for freehand.

Reimplemented from Mode.

Definition at line 86 of file DrawTraceMode.m.

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mouseDragged:

- (void) mouseDragged: (NSEvent *) event

implementation

Forwards to the shared drag/move handler.

Reimplemented from Mode.

Definition at line 198 of file DrawTraceMode.m.

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mouseDraggedOrMoved:whileDown:

- (void) mouseDraggedOrMoved: (NSEvent *) event whileDown: (BOOL) down

implementation

Updates the preview path during drag/move; freehand lines or adjusts last point.

Definition at line 163 of file DrawTraceMode.m.

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mouseMoved:

- (void) mouseMoved: (NSEvent *) event

implementation

Forwards to the shared drag/move handler.

Reimplemented from Mode.

Definition at line 203 of file DrawTraceMode.m.

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mouseUp:

- (void) mouseUp: (NSEvent *) event

implementation

Completes the trace in freehand mode and returns to Move mode.

Reimplemented from Mode.

Definition at line 208 of file DrawTraceMode.m.

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moveLastPoint:

- (void) moveLastPoint: (NSPoint) newLastPoint

implementation

Adjusts the last vertex for live preview when not in freehand mode.

Definition at line 60 of file DrawTraceMode.m.

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name

- (NSString *) name

implementation

Returns a human-readable name for this mode.

Reimplemented from Mode.

Definition at line 254 of file DrawTraceMode.m.

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setUp

- (void) setUp

implementation

Requires exactly one selected pad; otherwise switches to Rest with a message.

Reimplemented from Mode.

Definition at line 225 of file DrawTraceMode.m.

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The documentation for this class was generated from the following files:

• DrawTraceMode.h
• DrawTraceMode.m