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JFViewPositionUtil.h
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JFViewPositionUtil.h
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//
// JFViewPositionUtil.h
// JFCommon
//
// Created by Jason Fuerstenberg on 11/07/04.
// Copyright 2011 Jason Fuerstenberg
//
// http://www.jayfuerstenberg.com
// jay@jayfuerstenberg.com
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#import <Foundation/Foundation.h>
#if TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR
#import <UIKit/UIKit.h>
#elif TARGET_OS_MAC
#import <Cocoa/Cocoa.h>
#endif
enum {
JFAnchorPointTopLeft = 1 << 0, // Top left corner
JFAnchorPointTop = 1 << 1, // Top side
JFAnchorPointTopRight = 1 << 2, // Top right corner
JFAnchorPointLeft = 1 << 3, // Left side
JFAnchorPointCenter = 1 << 4, // Center point
JFAnchorPointRight = 1 << 5, // Right side
JFAnchorPointBottomLeft = 1 << 6, // Bottom left corner
JFAnchorPointBottom = 1 << 7, // Bottom side
JFAnchorPointBottomRight = 1 << 8 // Bottom right corner
};
typedef NSUInteger JFAnchorPoint;
#if TARGET_OS_IPHONE || TARGET_IPHONE_SIMULATOR
#define VIEW_TYPE UIView
#define RECT_TYPE CGRect
#elif TARGET_OS_MAC
#define VIEW_TYPE NSView
#define RECT_TYPE NSRect
#endif
/*
* This view position utility allows views to snap themselves to other sibling views and/or to the super view with ease.
*
* NOTE: When used in OS X development be sure to flip the coordinate system such that 0.0, 0.0 refers to the top left corner of the view.
* To accomplish this, implement the '- (BOOL) isFlipped' method in your view and return YES.
*/
@interface JFViewPositionUtil : NSObject
#pragma mark - Superview centric alignment methods
+ (void) verticallyCenterView: (VIEW_TYPE *) view withinSuperview: (VIEW_TYPE *) superview atX: (CGFloat) x;
+ (void) centerView: (VIEW_TYPE *) view withinSuperView: (VIEW_TYPE *) superView atY: (CGFloat) y;
+ (void) centerView: (VIEW_TYPE *) view withinSuperView: (VIEW_TYPE *) superView;
+ (void) centerView: (VIEW_TYPE *) view withinSuperView: (VIEW_TYPE *) superView belowSiblingView: (VIEW_TYPE *) siblingView withMargin: (CGFloat) margin;
#pragma mark - Sibling view centric alignment methods
+ (void) alignView: (VIEW_TYPE *) view atX: (CGFloat) x belowSiblingView: (VIEW_TYPE *) siblingView withMargin: (CGFloat) margin;
+ (void) leftAlignView: (VIEW_TYPE *) view belowSiblingView: (VIEW_TYPE *) siblingView withMargin: (CGFloat) margin;
+ (void) rightAlignView: (VIEW_TYPE *) view belowSiblingView: (VIEW_TYPE *) siblingView withMargin: (CGFloat) margin;
+ (void) centerView: (VIEW_TYPE *) view belowSiblingView: (VIEW_TYPE *) siblingView withMargin: (CGFloat) margin;
+ (void) verticallyCenterView: (VIEW_TYPE *) view leftOfSiblingView: (VIEW_TYPE *) siblingView withMargin: (CGFloat) margin;
+ (void) verticallyCenterView: (VIEW_TYPE *) view rightOfSiblingView: (VIEW_TYPE *) siblingView withMargin: (CGFloat) margin;
#pragma mark - Lower level snapping methods
+ (void) snapAnchorPoint: (JFAnchorPoint) anchorPoint ofView: (VIEW_TYPE *) view toAnchorPoint: (JFAnchorPoint) siblingAnchorPoint ofSiblingView: (VIEW_TYPE *) siblingView;
+ (void) snapAnchorPoint: (JFAnchorPoint) anchorPoint ofView: (VIEW_TYPE *) view withMargin: (CGPoint) margin fromAnchorPoint: (JFAnchorPoint) siblingAnchorPoint ofSiblingView: (VIEW_TYPE *) siblingView;
+ (void) moveView: (VIEW_TYPE *) view bySnappingPoint: (CGPoint) point toOtherPoint: (CGPoint) otherPoint;
+ (void) moveView: (VIEW_TYPE *) view bySnappingPoint: (CGPoint) point toOtherPoint: (CGPoint) otherPoint withMargin: (CGPoint) margin;
#pragma mark - Point retrieval method
+ (CGPoint) pointForAnchorPoint: (JFAnchorPoint) anchorPoint ofView: (VIEW_TYPE *) view;
#pragma mark - Extra methods
+ (void) setHeightOfSuperview: (VIEW_TYPE *) superview toFitAllSubviewsWithMargin: (CGFloat) margin;
+ (void) snapViewToDiscreteCoordinates: (VIEW_TYPE *) view;
@end