(root)/iphone/common : 61 : Jigs/source/ImageWell.m

//

//  ImageWell.m

//  Jigs

//

//  Created by döme on 11.08.2009.

//  Copyright 2009 __MyCompanyName__. All rights reserved.

//

 

#import "ImageWell.h"

#import "ElAnimation.h"

 

#import <QuartzCore/QuartzCore.h>

 

void createPathInRoundedRect(CGContextRef c, CGRect rect, float radius)

{

        CGContextBeginPath(c);

        CGContextMoveToPoint(c, CGRectGetMinX(rect) + radius, CGRectGetMinY(rect) );

        CGContextAddLineToPoint(c, CGRectGetMaxX(rect) - radius, CGRectGetMinY(rect));

        CGContextAddArcToPoint(c, CGRectGetMaxX(rect), CGRectGetMinY(rect), CGRectGetMaxX(rect), CGRectGetMinY(rect) + radius, radius);

        CGContextAddLineToPoint(c, CGRectGetMaxX(rect), CGRectGetMaxY(rect) - radius);

        CGContextAddArcToPoint(c, CGRectGetMaxX(rect), CGRectGetMaxY(rect), CGRectGetMaxX(rect) - radius, CGRectGetMaxY(rect), radius);

        CGContextAddLineToPoint(c, CGRectGetMinX(rect) + radius, CGRectGetMaxY(rect));

        CGContextAddArcToPoint(c, CGRectGetMinX(rect), CGRectGetMaxY(rect), CGRectGetMinX(rect), CGRectGetMaxY(rect) - radius, radius);

        CGContextAddLineToPoint(c, CGRectGetMinX(rect), CGRectGetMinY(rect) + radius );

        CGContextAddArcToPoint(c, CGRectGetMinX(rect), CGRectGetMinY(rect), CGRectGetMinX(rect) + radius, CGRectGetMinY(rect), radius);

        CGContextClosePath(c);

        

 

}

 

 

 

@implementation ElImageView

 

- (id) initWithFrame: (CGRect) frame

{

    if (!(self = [super initWithFrame: frame]))

                return nil;

 

        borderColor = [[UIColor grayColor] retain];

        cornerRadius = 5.0f;

        borderWidth = 1.0f;

        imageAlpha = 1.0f;

 

        [self setBackgroundColor: [UIColor redColor]];

 

        return self;

}

 

 

- (id) initWithCoder: (NSCoder*) coder

{

    if (!(self = [super initWithCoder: coder]))

                return nil;

        

        borderColor = [[UIColor grayColor] retain];

        cornerRadius = 5.0f;

        borderWidth = 1.0f;

        imageAlpha = 1.0f;

        

        fillView = NO;

        

        [self setBackgroundColor: [UIColor clearColor]];

 

        return self;

}

 

- (void) dealloc

{

        [image release];

        [borderColor release];

    [super dealloc];

}

 

 

- (void) drawRect: (CGRect) rect

{

        CGContextRef c = UIGraphicsGetCurrentContext();

        //[[UIColor blueColor] set];

        //CGContextFillRect(c, rect);

 

        CGContextSaveGState(c);

 

        UIImage* img = nil;

        

        @synchronized(self)

        {

                img = image;

        }

        if (!img)

                img = [UIImage imageNamed: @"image-not-found-icon.png"];

        

        CGRect bounds = CGRectInset([self bounds], 0.5*borderWidth,0.5*borderWidth);

        CGSize imgSize = [img size];

        

        

        float drawHeight = imgSize.height;

        float drawWidth = imgSize.width;

        

        float heightR = imgSize.height/bounds.size.height;

        float widthR = imgSize.width/bounds.size.width;

        

        if (heightR > 1.0f)

        {

                drawHeight = bounds.size.height;

                drawWidth *= 1.0f/heightR;

                widthR = drawWidth/bounds.size.width;

        }

 

        if (widthR > 1.0f)

        {

                drawWidth = bounds.size.width;

                drawHeight *= 1.0f/widthR;

        }

        

        CGRect drawRect = CGRectMake(bounds.origin.x + 0.5f*(bounds.size.width - drawWidth), bounds.origin.y + 0.5f*(bounds.size.height - drawHeight), drawWidth, drawHeight);

 

        if (fillView)

                drawRect = bounds;

        

        createPathInRoundedRect(c, drawRect, cornerRadius);

 

        CGContextClip(c);

 

        [img drawInRect: drawRect blendMode: kCGBlendModeNormal alpha: imageAlpha];

 

        CGContextRestoreGState(c);

        if (borderWidth)

        {

                [[borderColor colorWithAlphaComponent: imageAlpha] set];

                createPathInRoundedRect(c, drawRect, cornerRadius);

                CGContextSetLineWidth(c, borderWidth);

                CGContextStrokePath(c);

        }

}

 

- (void) setImageAlpha: (float) a

{

        imageAlpha = a;

        [self setNeedsDisplay];

}

 

- (void) setImage: (UIImage*) img

{

        @synchronized(self)

        {

                [img retain];

                [image release];

                image = img;

        }

        [self performSelectorOnMainThread: @selector(setNeedsDisplay) withObject: nil waitUntilDone: NO];

        //[self setNeedsDisplay];

}

 

@synthesize image, cornerRadius, borderColor, borderWidth, fillView, imageAlpha;

 

@end

 

 

 

@implementation ImageWell

 

 

- (id) initWithFrame: (CGRect) frame

{

    if (!(self = [super initWithFrame: frame]))

                return nil;

 

        return self;

}

 

- (id) initWithCoder: (NSCoder*) coder

{

    if (!(self = [super initWithCoder: coder]))

                return nil;

        

        instructionsView = [[UITextView alloc] initWithFrame: CGRectInset([self bounds], 0.0f, 0.0f)];

        [instructionsView setText: @"\n\n\nTap and hold to paste image,\n\nor\n\nDouble-tap to select image from gallery."];

        //[instructionsView setBackgroundColor: [UIColor yellowColor]];

        [instructionsView setTextColor: [UIColor whiteColor]];

        [instructionsView setBackgroundColor: [UIColor clearColor]];

        [instructionsView setFont: [UIFont systemFontOfSize: [UIFont labelFontSize]]];

        [instructionsView setEditable: NO];

        [instructionsView setUserInteractionEnabled: NO];

        [instructionsView setTextAlignment: UITextAlignmentCenter];

        [self addSubview: instructionsView];

 

        [instructionsView layer].opacity = 0.0f;

 

 

        return self;

}

 

- (void) setFrame: (CGRect) frame

{

        [super setFrame: frame];

        [instructionsView setFrame: CGRectInset([self bounds], 0.0f, 0.0f)];

}

 

 

 

- (void) dealloc

{

    [super dealloc];

}

 

- (void) pasteAction: (id) info

{

        NSArray* images = [[UIPasteboard generalPasteboard] images];

        if ([images count])

        {

                UIImage* img = [images objectAtIndex: 0];

                

                [self setImage: img];

                [delegate imageWasSelectedInWell: self];

        }

        pasteTimer = nil;

}

 

- (void) showInstructions: (float) time

{

                time = MAX(1.0f, time);

                

                ElFloatAnimation* anim = nil;

 

                anim = [[[ElFloatAnimation alloc] init] autorelease];

                

                [anim setStartValue: [[instructionsView layer] opacity]];

                [anim setEndValue: 0.667f];

                [anim setDuration: 0.5f];

                [anim setTarget: [instructionsView layer]];

                [anim setProperty: @"opacity"];

                [anim queueForKey: @"text-opacity" atBeginning: YES cancelPending: YES];

                

                

                anim = [[[ElFloatAnimation alloc] init] autorelease];

                

                [anim setStartValue: imageAlpha];

                [anim setEndValue: 0.333f];

                [anim setDuration: 0.5f];

                [anim setTarget: self];

                [anim setProperty: @"imageAlpha"];

                [anim queueForKey: @"image-opacity" atBeginning: YES cancelPending: YES];

                

                [[ElAnimation delayedAnimationWithDelay: time - 0.5f] queueForKey: @"text-opacity" atBeginning: NO cancelPending: NO];

                [[ElAnimation delayedAnimationWithDelay: time - 0.5f] queueForKey: @"image-opacity" atBeginning: NO cancelPending: NO];

 

                anim = [[[ElFloatAnimation alloc] init] autorelease];

                

                [anim setStartValue: 0.667f];

                [anim setEndValue: 0.0f];

                [anim setDuration: 0.5f];

                [anim setTarget: [instructionsView layer]];

                [anim setProperty: @"opacity"];

                [anim queueForKey: @"text-opacity" atBeginning: NO cancelPending: NO];

 

 

                anim = [[[ElFloatAnimation alloc] init] autorelease];

                

                [anim setStartValue: 0.333f];

                [anim setEndValue: 1.0f];

                [anim setDuration: 0.5f];

                [anim setTarget: self];

                [anim setProperty: @"imageAlpha"];

                [anim queueForKey: @"image-opacity" atBeginning: NO cancelPending: NO];

}

 

- (void) touchesBegan: (NSSet*) touches withEvent: (UIEvent*) event

{

        UITouch* touch = [touches anyObject];

        

        if ([touch tapCount] == 1)

        {

                [self showInstructions: 3.0f];

        }

 

        

        touchBeganTime = [event timestamp];

        

        pasteTimer = [NSTimer scheduledTimerWithTimeInterval: 3.0 target: self selector:@selector(pasteAction:) userInfo: nil repeats: NO];

        

        if ([touch tapCount] == 2)

        {

                [pasteTimer invalidate];

                pasteTimer = nil;

 

                if (!imagePicker)

                {

                        imagePicker = [[UIImagePickerController alloc] init];

 

                        //[imagePicker setSourceType: UIImagePickerControllerSourceTypeCamera];

                        [imagePicker setDelegate: self];

                        //[imagePicker setAllowsImageEditing: YES];

                        //[imagePicker setShowsCameraControls: NO];

                }

                

                assert(delegate);

                [delegate presentModalViewController: imagePicker animated: YES];

        }

}

 

- (void) touchesEnded: (NSSet*) touches withEvent: (UIEvent*) event

{

//      UITouch* touch = [touches anyObject];

        

        [pasteTimer invalidate];

        pasteTimer = nil;

        

}

 

- (void) touchesCancelled: (NSSet*) touches withEvent: (UIEvent*) event

{

//      UITouch* touch = [touches anyObject];

        

        [pasteTimer invalidate];

        pasteTimer = nil;

        

}

 

- (void)imagePickerController: (UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info

{

        

        UIImage* img = [info objectForKey: UIImagePickerControllerEditedImage];

        

        if (!img)

                img = [info objectForKey: UIImagePickerControllerOriginalImage];

 

        if (img)

        {

                [self setImage: img];

                [delegate imageWasSelectedInWell: self];

        }

 

        [delegate dismissModalViewControllerAnimated: YES];

 

}

- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker

{

        [delegate dismissModalViewControllerAnimated: YES];

}

 

 

@synthesize delegate;

 

@end