65 lines
1.5 KiB
Objective-C
65 lines
1.5 KiB
Objective-C
//
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// MPPowerFunctionLayout.m
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// MathPad
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//
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// Created by Kim Wittenburg on 30.09.14.
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// Copyright (c) 2014 Kim Wittenburg. All rights reserved.
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//
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#import "MPPowerFunctionLayout.h"
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#import "MPPowerFunction.h"
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#define kPowerFunctionExponentXOffset 1
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#define kPowerFunctionTrailingOffset 2
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@implementation MPPowerFunctionLayout
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- (NSRect)baseBounds
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{
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if (NSEqualRects(_baseBounds, NSZeroRect)) {
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return NSMakeRect(0, kMPEmptyBoxYOrigin, 0, kMPEmptyBoxHeight);
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}
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return _baseBounds;
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}
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- (MPPowerFunction *)powerFunction
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{
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return (MPPowerFunction *)self.function;
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}
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- (NSIndexSet *)indexesOfRemainingChildren
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{
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return [NSIndexSet indexSetWithIndex:0];
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}
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- (NSPoint)offsetOfChildLayoutAtIndex:(NSUInteger)index
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{
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CGFloat y = (self.baseBounds.size.height + self.baseBounds.origin.y) / 2;
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return NSMakePoint(kPowerFunctionExponentXOffset, y);
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}
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- (BOOL)childAtIndexUsesSmallSize:(NSUInteger)index
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{
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return YES;
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}
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- (NSIndexPath *)indexPathForLocalMousePoint:(NSPoint)point
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{
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return [[NSIndexPath indexPathWithIndex:0] indexPathByAddingIndex:0];
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}
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- (NSRect)generateBounds
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{
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NSRect exponentBounds = [self childLayoutAtIndex:0].bounds;
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CGFloat y = self.baseBounds.origin.y;
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CGFloat height = -y + [self offsetOfChildLayoutAtIndex:0].y + exponentBounds.size.height + exponentBounds.origin.y;
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CGFloat width = kPowerFunctionExponentXOffset + exponentBounds.size.width + kPowerFunctionTrailingOffset;
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return NSMakeRect(0, y, width, height);
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}
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- (void)draw
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{}
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@end
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