Synnefo » Pithos MacOS & iOS Common Lib

//

//  QueueViewController.m

//  Part of the ASIHTTPRequest sample project - see http://allseeing-i.com/ASIHTTPRequest for details

//

//  Created by Ben Copsey on 07/11/2008.

//  Copyright 2008 All-Seeing Interactive. All rights reserved.

//

#import "QueueViewController.h"

#import "ASIHTTPRequest.h"

#import "ASINetworkQueue.h"

#import "InfoCell.h"

#import "ToggleCell.h"

// Private stuff

@interface QueueViewController ()

- (void)imageFetchComplete:(ASIHTTPRequest *)request;

- (void)imageFetchFailed:(ASIHTTPRequest *)request;

@end

@implementation QueueViewController

- (IBAction)fetchThreeImages:(id)sender

{

	[imageView1 setImage:nil];

	[imageView2 setImage:nil];

	[imageView3 setImage:nil];

	if (!networkQueue) {

		networkQueue = [[ASINetworkQueue alloc] init];	

	}

	failed = NO;

	[networkQueue reset];

	[networkQueue setDownloadProgressDelegate:progressIndicator];

	[networkQueue setRequestDidFinishSelector:@selector(imageFetchComplete:)];

	[networkQueue setRequestDidFailSelector:@selector(imageFetchFailed:)];

	[networkQueue setShowAccurateProgress:[accurateProgress isOn]];

	[networkQueue setDelegate:self];

	ASIHTTPRequest *request;

	request = [ASIHTTPRequest requestWithURL:[NSURL URLWithString:@"http://allseeing-i.com/ASIHTTPRequest/tests/images/small-image.jpg"]];

	[request setDownloadDestinationPath:[[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] stringByAppendingPathComponent:@"1.png"]];

	[request setDownloadProgressDelegate:imageProgressIndicator1];

    [request setUserInfo:[NSDictionary dictionaryWithObject:@"request1" forKey:@"name"]];

	[networkQueue addOperation:request];

	request = [[[ASIHTTPRequest alloc] initWithURL:[NSURL URLWithString:@"http://allseeing-i.com/ASIHTTPRequest/tests/images/medium-image.jpg"]] autorelease];

	[request setDownloadDestinationPath:[[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] stringByAppendingPathComponent:@"2.png"]];

	[request setDownloadProgressDelegate:imageProgressIndicator2];

    [request setUserInfo:[NSDictionary dictionaryWithObject:@"request2" forKey:@"name"]];

	[networkQueue addOperation:request];

	request = [[[ASIHTTPRequest alloc] initWithURL:[NSURL URLWithString:@"http://allseeing-i.com/ASIHTTPRequest/tests/images/large-image.jpg"]] autorelease];

	[request setDownloadDestinationPath:[[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] stringByAppendingPathComponent:@"3.png"]];

	[request setDownloadProgressDelegate:imageProgressIndicator3];

    [request setUserInfo:[NSDictionary dictionaryWithObject:@"request3" forKey:@"name"]];

	[networkQueue addOperation:request];

	[networkQueue go];

}

- (void)imageFetchComplete:(ASIHTTPRequest *)request

{

	UIImage *img = [UIImage imageWithContentsOfFile:[request downloadDestinationPath]];

	if (img) {

		if ([imageView1 image]) {

			if ([imageView2 image]) {

				[imageView3 setImage:img];

			} else {

				[imageView2 setImage:img];

			}

		} else {

			[imageView1 setImage:img];

		}

	}

}

- (void)imageFetchFailed:(ASIHTTPRequest *)request

{

	if (!failed) {

		if ([[request error] domain] != NetworkRequestErrorDomain || [[request error] code] != ASIRequestCancelledErrorType) {

			UIAlertView *alertView = [[[UIAlertView alloc] initWithTitle:@"Download failed" message:@"Failed to download images" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil] autorelease];

			[alertView show];

		}

		failed = YES;

	}

}

- (void)dealloc {

	[progressIndicator release];

	[networkQueue reset];

	[networkQueue release];

    [super dealloc];

}

/*

 Most of the code below here relates to the table view, and isn't that interesting

 */

- (void)viewDidLoad

{

	[super viewDidLoad];

	[[[self navigationBar] topItem] setTitle:@"Using a Queue"];

}

static NSString *intro = @"Demonstrates a fetching 3 items at once, using an ASINetworkQueue to track progress.\r\nEach request has its own downloadProgressDelegate, and the queue has an additional downloadProgressDelegate to track overall progress.";

- (UIView *)tableView:(UITableView *)theTableView viewForHeaderInSection:(NSInteger)section

{

	if (section == 1) {

		int tablePadding = 40;

		int tableWidth = [tableView frame].size.width;

		if (tableWidth > 480) { // iPad

			tablePadding = 110;

		}

		UIView *view = [[[UIView alloc] initWithFrame:CGRectMake(0,0,tableWidth-(tablePadding/2),30)] autorelease];

		UIButton *goButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];

		[goButton setTitle:@"Go!" forState:UIControlStateNormal];

		[goButton sizeToFit];

		[goButton setFrame:CGRectMake([view frame].size.width-[goButton frame].size.width+10,7,[goButton frame].size.width,[goButton frame].size.height)];

		[goButton addTarget:self action:@selector(fetchThreeImages:) forControlEvents:UIControlEventTouchUpInside];

		[view addSubview:goButton];

		if (!progressIndicator) {

			progressIndicator = [[UIProgressView alloc] initWithFrame:CGRectMake((tablePadding/2)-10,20,200,10)];

		} else {

			[progressIndicator setFrame:CGRectMake((tablePadding/2)-10,20,200,10)];

		}

		[view addSubview:progressIndicator];

		return view;

	}

	return nil;

}

- (UITableViewCell *)tableView:(UITableView *)theTableView cellForRowAtIndexPath:(NSIndexPath *)indexPath

{

	int tablePadding = 40;

	int tableWidth = [tableView frame].size.width;

	if (tableWidth > 480) { // iPad

		tablePadding = 110;

	}

	UITableViewCell *cell;

	if ([indexPath section] == 0) {

		cell = [tableView dequeueReusableCellWithIdentifier:@"InfoCell"];

		if (!cell) {

			cell = [InfoCell cell];

		}

		[[cell textLabel] setText:intro];

		[cell layoutSubviews];

	} else if ([indexPath section] == 1) {

		cell = [tableView dequeueReusableCellWithIdentifier:@"ToggleCell"];

		if (!cell) {

			cell = [ToggleCell cell];

		}	

		[[cell textLabel] setText:@"Show Accurate Progress"];

		accurateProgress = [(ToggleCell *)cell toggle];

	} else {

		cell = [tableView dequeueReusableCellWithIdentifier:@"ImagesCell"];

		if (!cell) {

			cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:@"ImagesCell"] autorelease];

			imageView1 = [[[UIImageView alloc] initWithFrame:CGRectZero] autorelease];

			[imageView1 setBackgroundColor:[UIColor grayColor]];

			[cell addSubview:imageView1];

			imageProgressIndicator1 = [[[UIProgressView alloc] initWithFrame:CGRectZero] autorelease];

			[cell addSubview:imageProgressIndicator1];

			imageLabel1 = [[[UILabel alloc] initWithFrame:CGRectZero] autorelease];

			if (tableWidth > 480) {

				[imageLabel1 setText:@"This image is 15KB in size"];

			} else {

				[imageLabel1 setText:@"Img size: 15KB"];

			}

			[imageLabel1 setTextAlignment:UITextAlignmentCenter];

			[imageLabel1 setFont:[UIFont systemFontOfSize:11]];

			[imageLabel1 setBackgroundColor:[UIColor clearColor]];

			[cell addSubview:imageLabel1];

			imageView2 = [[[UIImageView alloc] initWithFrame:CGRectZero] autorelease];

			[imageView2 setBackgroundColor:[UIColor grayColor]];

			[cell addSubview:imageView2];

			imageProgressIndicator2 = [[[UIProgressView alloc] initWithFrame:CGRectZero] autorelease];

			[cell addSubview:imageProgressIndicator2];

			imageLabel2 = [[[UILabel alloc] initWithFrame:CGRectZero] autorelease];

			if (tableWidth > 480) {

				[imageLabel2 setText:@"This image is 176KB in size"];

			} else {

				[imageLabel2 setText:@"Img size: 176KB"];

			}

			[imageLabel2 setTextAlignment:UITextAlignmentCenter];

			[imageLabel2 setFont:[UIFont systemFontOfSize:11]];

			[imageLabel2 setBackgroundColor:[UIColor clearColor]];

			[cell addSubview:imageLabel2];

			imageView3 = [[[UIImageView alloc] initWithFrame:CGRectZero] autorelease];

			[imageView3 setBackgroundColor:[UIColor grayColor]];

			[cell addSubview:imageView3];

			imageProgressIndicator3 = [[[UIProgressView alloc] initWithFrame:CGRectZero] autorelease];

			[cell addSubview:imageProgressIndicator3];

			imageLabel3 = [[[UILabel alloc] initWithFrame:CGRectZero] autorelease];

			if (tableWidth > 480) {

				[imageLabel3 setText:@"This image is 1.4MB in size"];

			} else {

				[imageLabel3 setText:@"Img size: 1.4MB"];

			}

			[imageLabel3 setTextAlignment:UITextAlignmentCenter];

			[imageLabel3 setFont:[UIFont systemFontOfSize:11]];

			[imageLabel3 setBackgroundColor:[UIColor clearColor]];

			[cell addSubview:imageLabel3];

		}

		NSUInteger imageWidth = (tableWidth-tablePadding-20)/3;

		NSUInteger imageHeight = imageWidth*0.66f;

		[imageView1 setFrame:CGRectMake(tablePadding/2,10,imageWidth,imageHeight)];

		[imageProgressIndicator1 setFrame:CGRectMake(tablePadding/2,15+imageHeight,imageWidth,20)];

		[imageLabel1 setFrame:CGRectMake(tablePadding/2,25+imageHeight,imageWidth,20)];

		[imageView2 setFrame:CGRectMake((tablePadding/2)+imageWidth+10,10,imageWidth,imageHeight)];

		[imageProgressIndicator2 setFrame:CGRectMake((tablePadding/2)+imageWidth+10,15+imageHeight,imageWidth,20)];

		[imageLabel2 setFrame:CGRectMake(tablePadding/2+imageWidth+10,25+imageHeight,imageWidth,20)];

		[imageView3 setFrame:CGRectMake((tablePadding/2)+(imageWidth*2)+20,10,imageWidth,imageHeight)];

		[imageProgressIndicator3 setFrame:CGRectMake((tablePadding/2)+(imageWidth*2)+20,15+imageHeight,imageWidth,20)];

		[imageLabel3 setFrame:CGRectMake(tablePadding/2+(imageWidth*2)+20,25+imageHeight,imageWidth,20)];

	}

	[cell setSelectionStyle:UITableViewCellSelectionStyleNone];

	return cell;

}

- (NSInteger)tableView:(UITableView *)theTableView numberOfRowsInSection:(NSInteger)section

{

	return 1;

}

- (CGFloat)tableView:(UITableView *)theTableView heightForHeaderInSection:(NSInteger)section

{

	if (section == 1) {

		return 50;

	}

	return 34;

}

- (CGFloat)tableView:(UITableView *)theTableView heightForRowAtIndexPath:(NSIndexPath *)indexPath

{

	if ([indexPath section] == 0) {

		return [InfoCell neededHeightForDescription:intro withTableWidth:[tableView frame].size.width]+20;

	} else if ([indexPath section] == 2) {

		int tablePadding = 40;

		int tableWidth = [tableView frame].size.width;

		if (tableWidth > 480) { // iPad

			tablePadding = 110;

		}

		NSUInteger imageWidth = (tableWidth-tablePadding-20)/3;

		NSUInteger imageHeight = imageWidth*0.66f;

		return imageHeight+50;

	} else {

		return 42;

	}

}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView

{

	return 3;

}

@end