390 lines
12 KiB
Objective-C

//
// CLStickerTool.m
//
// Created by sho yakushiji on 2013/12/11.
// Copyright (c) 2013年 CALACULU. All rights reserved.
//
#import "CLStickerTool.h"
#import "CLCircleView.h"
static NSString* const kCLStickerToolStickerPathKey = @"stickerPath";
static NSString* const kCLStickerToolDeleteIconName = @"deleteIconAssetsName";
@interface _CLStickerView : UIView
+ (void)setActiveStickerView:(_CLStickerView*)view;
- (UIImageView*)imageView;
- (id)initWithImage:(UIImage *)image tool:(CLStickerTool*)tool;
- (void)setScale:(CGFloat)scale;
@end
@implementation CLStickerTool
{
UIImage *_originalImage;
UIView *_workingView;
UIScrollView *_menuScroll;
}
+ (NSArray*)subtools
{
return nil;
}
+ (NSString*)defaultTitle
{
return [CLImageEditorTheme localizedString:@"CLStickerTool_DefaultTitle" withDefault:@"Sticker"];
}
+ (BOOL)isAvailable
{
return ([UIDevice iosVersion] >= 5.0);
}
+ (CGFloat)defaultDockedNumber
{
return 7;
}
#pragma mark- optional info
+ (NSString*)defaultStickerPath
{
return [[[CLImageEditorTheme bundle] bundlePath] stringByAppendingPathComponent:[NSString stringWithFormat:@"%@/stickers", NSStringFromClass(self)]];
}
+ (NSDictionary*)optionalInfo
{
return @{
kCLStickerToolStickerPathKey:[self defaultStickerPath],
kCLStickerToolDeleteIconName:@"",
};
}
#pragma mark- implementation
- (void)setup
{
_originalImage = self.editor.imageView.image;
[self.editor fixZoomScaleWithAnimated:YES];
_menuScroll = [[UIScrollView alloc] initWithFrame:self.editor.menuView.frame];
_menuScroll.backgroundColor = self.editor.menuView.backgroundColor;
_menuScroll.showsHorizontalScrollIndicator = NO;
[self.editor.view addSubview:_menuScroll];
_workingView = [[UIView alloc] initWithFrame:[self.editor.view convertRect:self.editor.imageView.frame fromView:self.editor.imageView.superview]];
_workingView.clipsToBounds = YES;
[self.editor.view addSubview:_workingView];
[self setStickerMenu];
_menuScroll.transform = CGAffineTransformMakeTranslation(0, self.editor.view.height-_menuScroll.top);
[UIView animateWithDuration:kCLImageToolAnimationDuration
animations:^{
self->_menuScroll.transform = CGAffineTransformIdentity;
}];
}
- (void)cleanup
{
[self.editor resetZoomScaleWithAnimated:YES];
[_workingView removeFromSuperview];
[UIView animateWithDuration:kCLImageToolAnimationDuration
animations:^{
self->_menuScroll.transform = CGAffineTransformMakeTranslation(0, self.editor.view.height-self->_menuScroll.top);
}
completion:^(BOOL finished) {
[self->_menuScroll removeFromSuperview];
}];
}
- (void)executeWithCompletionBlock:(void (^)(UIImage *, NSError *, NSDictionary *))completionBlock
{
[_CLStickerView setActiveStickerView:nil];
dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
UIImage *image = [self buildImage:self->_originalImage];
dispatch_async(dispatch_get_main_queue(), ^{
completionBlock(image, nil, nil);
});
});
}
#pragma mark-
- (void)setStickerMenu
{
CGFloat W = 70;
CGFloat H = _menuScroll.height;
CGFloat x = 0;
NSString *stickerPath = self.toolInfo.optionalInfo[kCLStickerToolStickerPathKey];
if(stickerPath==nil){ stickerPath = [[self class] defaultStickerPath]; }
NSFileManager *fileManager = [NSFileManager defaultManager];
NSError *error = nil;
NSArray *list = [fileManager contentsOfDirectoryAtPath:stickerPath error:&error];
NSArray *sortedList = [list sortedArrayUsingSelector:@selector(compare:)]; //sort stickers alphabetically
for(NSString *path in sortedList){
NSString *filePath = [NSString stringWithFormat:@"%@/%@", stickerPath, path];
UIImage *image = [UIImage imageWithContentsOfFile:filePath];
if(image){
CLToolbarMenuItem *view = [CLImageEditorTheme menuItemWithFrame:CGRectMake(x, 0, W, H) target:self action:@selector(tappedStickerPanel:) toolInfo:nil];
view.iconImage = [image aspectFit:CGSizeMake(50, 50)];
view.userInfo = @{@"filePath" : filePath};
view.iconImageContentMode = UIViewContentModeScaleAspectFit;
[_menuScroll addSubview:view];
x += W;
}
}
_menuScroll.contentSize = CGSizeMake(MAX(x, _menuScroll.frame.size.width+1), 0);
}
- (void)tappedStickerPanel:(UITapGestureRecognizer*)sender
{
UIView *view = sender.view;
NSString *filePath = view.userInfo[@"filePath"];
if(filePath){
_CLStickerView *view = [[_CLStickerView alloc] initWithImage:[UIImage imageWithContentsOfFile:filePath] tool:self];
CGFloat ratio = MIN( (0.5 * _workingView.width) / view.width, (0.5 * _workingView.height) / view.height);
[view setScale:ratio];
view.center = CGPointMake(_workingView.width/2, _workingView.height/2);
[_workingView addSubview:view];
[_CLStickerView setActiveStickerView:view];
}
view.alpha = 0.2;
[UIView animateWithDuration:kCLImageToolAnimationDuration
animations:^{
view.alpha = 1;
}
];
}
- (UIImage*)buildImage:(UIImage*)image
{
__block CALayer *layer = nil;
__block CGFloat scale = 1;
safe_dispatch_sync_main(^{
scale = image.size.width / self->_workingView.width;
layer = self->_workingView.layer;
});
UIGraphicsBeginImageContextWithOptions(image.size, NO, image.scale);
[image drawAtPoint:CGPointZero];
CGContextScaleCTM(UIGraphicsGetCurrentContext(), scale, scale);
[layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *tmp = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return tmp;
}
@end
@implementation _CLStickerView
{
UIImageView *_imageView;
UIButton *_deleteButton;
CLCircleView *_circleView;
CGFloat _scale;
CGFloat _arg;
CGPoint _initialPoint;
CGFloat _initialArg;
CGFloat _initialScale;
}
+ (void)setActiveStickerView:(_CLStickerView*)view
{
static _CLStickerView *activeView = nil;
if(view != activeView){
[activeView setAvtive:NO];
activeView = view;
[activeView setAvtive:YES];
[activeView.superview bringSubviewToFront:activeView];
}
}
- (id)initWithImage:(UIImage *)image tool:(CLStickerTool*)tool
{
self = [super initWithFrame:CGRectMake(0, 0, image.size.width+32, image.size.height+32)];
if(self){
_imageView = [[UIImageView alloc] initWithImage:image];
_imageView.layer.borderColor = [[UIColor blackColor] CGColor];
_imageView.layer.cornerRadius = 3;
_imageView.center = self.center;
[self addSubview:_imageView];
_deleteButton = [UIButton buttonWithType:UIButtonTypeCustom];
[_deleteButton setImage:[tool imageForKey:kCLStickerToolDeleteIconName defaultImageName:@"btn_delete.png"] forState:UIControlStateNormal];
_deleteButton.frame = CGRectMake(0, 0, 32, 32);
_deleteButton.center = _imageView.frame.origin;
[_deleteButton addTarget:self action:@selector(pushedDeleteBtn:) forControlEvents:UIControlEventTouchUpInside];
[self addSubview:_deleteButton];
_circleView = [[CLCircleView alloc] initWithFrame:CGRectMake(0, 0, 32, 32)];
_circleView.center = CGPointMake(_imageView.width + _imageView.frame.origin.x, _imageView.height + _imageView.frame.origin.y);
_circleView.autoresizingMask = UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleTopMargin;
_circleView.radius = 0.7;
_circleView.color = [UIColor whiteColor];
_circleView.borderColor = [UIColor blackColor];
_circleView.borderWidth = 5;
[self addSubview:_circleView];
_scale = 1;
_arg = 0;
[self initGestures];
}
return self;
}
- (void)initGestures
{
_imageView.userInteractionEnabled = YES;
[_imageView addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(viewDidTap:)]];
[_imageView addGestureRecognizer:[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(viewDidPan:)]];
[_circleView addGestureRecognizer:[[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(circleViewDidPan:)]];
}
- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
{
UIView* view= [super hitTest:point withEvent:event];
if(view==self){
return nil;
}
return view;
}
- (UIImageView*)imageView
{
return _imageView;
}
- (void)pushedDeleteBtn:(id)sender
{
_CLStickerView *nextTarget = nil;
const NSInteger index = [self.superview.subviews indexOfObject:self];
for(NSInteger i=index+1; i<self.superview.subviews.count; ++i){
UIView *view = [self.superview.subviews objectAtIndex:i];
if([view isKindOfClass:[_CLStickerView class]]){
nextTarget = (_CLStickerView*)view;
break;
}
}
if(nextTarget==nil){
for(NSInteger i=index-1; i>=0; --i){
UIView *view = [self.superview.subviews objectAtIndex:i];
if([view isKindOfClass:[_CLStickerView class]]){
nextTarget = (_CLStickerView*)view;
break;
}
}
}
[[self class] setActiveStickerView:nextTarget];
[self removeFromSuperview];
}
- (void)setAvtive:(BOOL)active
{
_deleteButton.hidden = !active;
_circleView.hidden = !active;
_imageView.layer.borderWidth = (active) ? 1/_scale : 0;
}
- (void)setScale:(CGFloat)scale
{
_scale = scale;
self.transform = CGAffineTransformIdentity;
_imageView.transform = CGAffineTransformMakeScale(_scale, _scale);
CGRect rct = self.frame;
rct.origin.x += (rct.size.width - (_imageView.width + 32)) / 2;
rct.origin.y += (rct.size.height - (_imageView.height + 32)) / 2;
rct.size.width = _imageView.width + 32;
rct.size.height = _imageView.height + 32;
self.frame = rct;
_imageView.center = CGPointMake(rct.size.width/2, rct.size.height/2);
self.transform = CGAffineTransformMakeRotation(_arg);
_imageView.layer.borderWidth = 1/_scale;
_imageView.layer.cornerRadius = 3/_scale;
}
- (void)viewDidTap:(UITapGestureRecognizer*)sender
{
[[self class] setActiveStickerView:self];
}
- (void)viewDidPan:(UIPanGestureRecognizer*)sender
{
[[self class] setActiveStickerView:self];
CGPoint p = [sender translationInView:self.superview];
if(sender.state == UIGestureRecognizerStateBegan){
_initialPoint = self.center;
}
self.center = CGPointMake(_initialPoint.x + p.x, _initialPoint.y + p.y);
}
- (void)circleViewDidPan:(UIPanGestureRecognizer*)sender
{
CGPoint p = [sender translationInView:self.superview];
static CGFloat tmpR = 1;
static CGFloat tmpA = 0;
if(sender.state == UIGestureRecognizerStateBegan){
_initialPoint = [self.superview convertPoint:_circleView.center fromView:_circleView.superview];
CGPoint p = CGPointMake(_initialPoint.x - self.center.x, _initialPoint.y - self.center.y);
tmpR = sqrt(p.x*p.x + p.y*p.y);
tmpA = atan2(p.y, p.x);
_initialArg = _arg;
_initialScale = _scale;
}
p = CGPointMake(_initialPoint.x + p.x - self.center.x, _initialPoint.y + p.y - self.center.y);
CGFloat R = sqrt(p.x*p.x + p.y*p.y);
CGFloat arg = atan2(p.y, p.x);
_arg = _initialArg + arg - tmpA;
[self setScale:MAX(_initialScale * R / tmpR, 0.2)];
}
@end