/*

     File: SKTLine+Accessibility.m

 Abstract: Adds accessibility support to SKTLine.

  Version: 1.1

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 */

#import "SKTLine.h"

#import "SKTGraphic+Accessibility.h"

/* An SKTLine only has two handles instead of eight.  We override some of the accessibilty-related methods we added in SKTGraphic+Accessiblity.m to return the correct answers for lines.

 */

@implementation SKTLine (Accessibility)

- (NSString *)shapeDescription {

    return NSLocalizedStringFromTable(@"line", @"Accessibility", @"accessibility description for line graphic");

}

- (NSIndexSet *)handleCodes {

    return [NSIndexSet indexSetWithIndexesInRange:NSMakeRange(1, 2)];

}

/* A handle UI element has no idea of its screen location, it needs help from its parent, the graphic proxy.  The graphic proxy needs to ask the actual graphic for the location.

 */

- (NSRect)rectangleForHandleCode:(NSInteger)handleCode {

    NSPoint startPoint;

    switch (handleCode) {

        case SKTLineBeginHandle:

            startPoint = [self beginPoint];

            break;

        case SKTLineEndHandle:

            startPoint = [self endPoint];

            break;

        default:

            startPoint = NSZeroPoint;

            break;

    }

    NSRect handleBounds;

    handleBounds.origin.x = startPoint.x - SKTGraphicHandleHalfWidth;

    handleBounds.origin.y = startPoint.y - SKTGraphicHandleHalfWidth;

    handleBounds.size.width = SKTGraphicHandleWidth;

    handleBounds.size.height = SKTGraphicHandleWidth;

    return handleBounds;

}

- (NSString *)descriptionForHandleCode:(NSInteger)handleCode {

    NSString *accessibilityDescription = nil;

    switch (handleCode) {

        case SKTLineBeginHandle:

            accessibilityDescription = NSLocalizedStringFromTable(@"start", @"Accessibility", @"accessibility description for line handles");

            break;

        case SKTLineEndHandle:

            accessibilityDescription = NSLocalizedStringFromTable(@"end", @"Accessibility", @"accessibility description for line handles");

            break;

        default:

            accessibilityDescription = @"";

            break;

    }

    return accessibilityDescription;

}

@end