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Add Objective-J samples
This commit is contained in:
Hawk Weisman
434
samples/Objective-J/AppController.j
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434
samples/Objective-J/AppController.j
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//
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// AppController.j
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// FlickrPhoto
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//
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// Created by Ross Boucher.
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// Copyright 2008 - 2010, 280 North, Inc. All rights reserved.
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@import <Foundation/Foundation.j>
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@import <AppKit/AppKit.j>
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var SliderToolbarItemIdentifier = "SliderToolbarItemIdentifier",
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AddToolbarItemIdentifier = "AddToolbarItemIdentifier",
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RemoveToolbarItemIdentifier = "RemoveToolbarItemIdentifier";
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/*
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Important note about CPJSONPConnection: CPJSONPConnection is ONLY for JSONP APIs.
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If aren't sure you NEED JSONP (see http://ajaxian.com/archives/jsonp-json-with-padding ),
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you most likely don't want to use CPJSONPConnection, but rather the more standard
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CPURLConnection. CPJSONPConnection is designed for cross-domain
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connections, and if you are making requests to the same domain (as most web
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applications do), you do not need it.
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*/
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@implementation AppController : CPObject
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{
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CPString lastIdentifier;
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CPDictionary photosets;
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CPCollectionView listCollectionView;
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CPCollectionView photosCollectionView;
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}
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- (void)applicationDidFinishLaunching:(CPNotification)aNotification
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{
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//the first thing we need to do is create a window to take up the full screen
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//we'll also create a toolbar to go with it, and grab its size for future reference
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var theWindow = [[CPWindow alloc] initWithContentRect:CGRectMakeZero() styleMask:CPBorderlessBridgeWindowMask],
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contentView = [theWindow contentView],
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toolbar = [[CPToolbar alloc] initWithIdentifier:"Photos"],
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bounds = [contentView bounds];
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//we tell the toolbar that we want to be its delegate and attach it to theWindow
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[toolbar setDelegate:self];
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[toolbar setVisible:true];
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[theWindow setToolbar:toolbar];
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photosets = [CPDictionary dictionary]; //storage for our sets of photos return from Flickr
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//now we create a scroll view to contain the list of collections of photos (photosets)
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//inside the scroll view, we'll place our collection view, which manages a collection of "cells"
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//each cell will represent one photo collection, and choosing cells will select that collection
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var listScrollView = [[CPScrollView alloc] initWithFrame:CGRectMake(0, 0, 200, CGRectGetHeight(bounds) - 58)];
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[listScrollView setAutohidesScrollers:YES];
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[listScrollView setAutoresizingMask:CPViewHeightSizable];
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[[listScrollView contentView] setBackgroundColor:[CPColor colorWithRed:213.0 / 255.0 green:221.0 / 255.0 blue:230.0 / 255.0 alpha:1.0]];
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//we create the collection view cells by creating a single prototype (CPCollectionViewItem) and setting its view.
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//the CPCollectionView class will then duplicate this item as many times as it needs
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var photosListItem = [[CPCollectionViewItem alloc] init];
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[photosListItem setView:[[PhotosListCell alloc] initWithFrame:CGRectMakeZero()]];
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listCollectionView = [[CPCollectionView alloc] initWithFrame:CGRectMake(0, 0, 200, 0)];
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[listCollectionView setDelegate:self]; //we want delegate methods
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[listCollectionView setItemPrototype:photosListItem]; //set the item prototype
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[listCollectionView setMinItemSize:CGSizeMake(20.0, 45.0)];
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[listCollectionView setMaxItemSize:CGSizeMake(1000.0, 45.0)];
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[listCollectionView setMaxNumberOfColumns:1]; //setting a single column will make this appear as a vertical list
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[listCollectionView setVerticalMargin:0.0];
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[listCollectionView setAutoresizingMask:CPViewWidthSizable];
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//finally, we put our collection view inside the scroll view as it's document view, so it can be scrolled
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[listScrollView setDocumentView:listCollectionView];
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//and we add it to the window's content view, so it will show up on the screen
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[contentView addSubview:listScrollView];
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//repeat the process with another collection view for the actual photos
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//this time we'll use a different view for the prototype (PhotoCell)
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var photoItem = [[CPCollectionViewItem alloc] init];
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[photoItem setView:[[PhotoCell alloc] initWithFrame:CGRectMake(0, 0, 150, 150)]];
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var scrollView = [[CPScrollView alloc] initWithFrame:CGRectMake(200, 0, CGRectGetWidth(bounds) - 200, CGRectGetHeight(bounds) - 58)];
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photosCollectionView = [[CPCollectionView alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(bounds) - 200, 0)];
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[photosCollectionView setDelegate:self];
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[photosCollectionView setItemPrototype:photoItem];
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[photosCollectionView setMinItemSize:CGSizeMake(150, 150)];
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[photosCollectionView setMaxItemSize:CGSizeMake(150, 150)];
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[photosCollectionView setAutoresizingMask:CPViewWidthSizable];
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[scrollView setAutoresizingMask:CPViewHeightSizable | CPViewWidthSizable];
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[scrollView setDocumentView:photosCollectionView];
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[scrollView setAutohidesScrollers:YES];
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[[scrollView contentView] setBackgroundColor:[CPColor colorWithCalibratedWhite:0.25 alpha:1.0]];
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[contentView addSubview:scrollView];
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//bring forward the window to display it
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[theWindow orderFront:self];
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//get the most interesting photos on flickr
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var request = [CPURLRequest requestWithURL:"http://www.flickr.com/services/rest/?method=flickr.interestingness.getList&per_page=20&format=json&api_key=ca4dd89d3dfaeaf075144c3fdec76756"];
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// see important note about CPJSONPConnection above
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var connection = [CPJSONPConnection sendRequest:request callback:"jsoncallback" delegate:self];
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lastIdentifier = "Interesting Photos";
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}
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- (void)add:(id)sender
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{
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var string = prompt("Enter a tag to search Flickr for photos.");
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if (string)
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{
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//create a new request for the photos with the tag returned from the javascript prompt
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var request = [CPURLRequest requestWithURL:"http://www.flickr.com/services/rest/?"+
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"method=flickr.photos.search&tags="+encodeURIComponent(string)+
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"&media=photos&machine_tag_mode=any&per_page=20&format=json&api_key=ca4dd89d3dfaeaf075144c3fdec76756"];
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// see important note about CPJSONPConnection above
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[CPJSONPConnection sendRequest:request callback:"jsoncallback" delegate:self];
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lastIdentifier = string;
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}
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}
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- (void)remove:(id)sender
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{
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//remove this photo
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[self removeImageListWithIdentifier:[[photosets allKeys] objectAtIndex:[[listCollectionView selectionIndexes] firstIndex]]];
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}
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- (void)addImageList:(CPArray)images withIdentifier:(CPString)aString
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{
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[photosets setObject:images forKey:aString];
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[listCollectionView setContent:[[photosets allKeys] copy]];
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[listCollectionView setSelectionIndexes:[CPIndexSet indexSetWithIndex:[[photosets allKeys] indexOfObject:aString]]];
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}
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- (void)removeImageListWithIdentifier:(CPString)aString
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{
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var nextIndex = MAX([[listCollectionView content] indexOfObject:aString] - 1, 0);
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[photosets removeObjectForKey:aString];
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[listCollectionView setContent:[[photosets allKeys] copy]];
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[listCollectionView setSelectionIndexes:[CPIndexSet indexSetWithIndex:nextIndex]];
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}
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- (void)adjustImageSize:(id)sender
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{
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var newSize = [sender value];
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[photosCollectionView setMinItemSize:CGSizeMake(newSize, newSize)];
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[photosCollectionView setMaxItemSize:CGSizeMake(newSize, newSize)];
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}
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- (void)collectionViewDidChangeSelection:(CPCollectionView)aCollectionView
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{
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if (aCollectionView == listCollectionView)
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{
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var listIndex = [[listCollectionView selectionIndexes] firstIndex];
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if (listIndex === CPNotFound)
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return;
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var key = [listCollectionView content][listIndex];
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[photosCollectionView setContent:[photosets objectForKey:key]];
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[photosCollectionView setSelectionIndexes:[CPIndexSet indexSet]];
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}
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}
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- (void)connection:(CPJSONPConnection)aConnection didReceiveData:(CPString)data
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{
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//this method is called when the network request returns. the data is the returned
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//information from flickr. we set the array of photo urls as the data to our collection view
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[self addImageList:data.photos.photo withIdentifier:lastIdentifier];
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}
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- (void)connection:(CPJSONPConnection)aConnection didFailWithError:(CPString)error
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{
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alert(error); //a network error occurred
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}
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//these two methods are the toolbar delegate methods, and tell the toolbar what it should display to the user
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- (CPArray)toolbarAllowedItemIdentifiers:(CPToolbar)aToolbar
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{
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return [self toolbarDefaultItemIdentifiers:aToolbar];
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}
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- (CPArray)toolbarDefaultItemIdentifiers:(CPToolbar)aToolbar
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{
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return [AddToolbarItemIdentifier, RemoveToolbarItemIdentifier, CPToolbarFlexibleSpaceItemIdentifier, SliderToolbarItemIdentifier];
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}
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//this delegate method returns the actual toolbar item for the given identifier
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- (CPToolbarItem)toolbar:(CPToolbar)aToolbar itemForItemIdentifier:(CPString)anItemIdentifier willBeInsertedIntoToolbar:(BOOL)aFlag
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{
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var toolbarItem = [[CPToolbarItem alloc] initWithItemIdentifier:anItemIdentifier];
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if (anItemIdentifier == SliderToolbarItemIdentifier)
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{
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[toolbarItem setView:[[PhotoResizeView alloc] initWithFrame:CGRectMake(0, 0, 180, 32)]];
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[toolbarItem setMinSize:CGSizeMake(180, 32)];
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[toolbarItem setMaxSize:CGSizeMake(180, 32)];
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[toolbarItem setLabel:"Scale"];
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}
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else if (anItemIdentifier == AddToolbarItemIdentifier)
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{
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var image = [[CPImage alloc] initWithContentsOfFile:[[CPBundle mainBundle] pathForResource:"add.png"] size:CPSizeMake(30, 25)],
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highlighted = [[CPImage alloc] initWithContentsOfFile:[[CPBundle mainBundle] pathForResource:"addHighlighted.png"] size:CPSizeMake(30, 25)];
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[toolbarItem setImage:image];
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[toolbarItem setAlternateImage:highlighted];
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[toolbarItem setTarget:self];
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[toolbarItem setAction:@selector(add:)];
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[toolbarItem setLabel:"Add Photo List"];
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[toolbarItem setMinSize:CGSizeMake(32, 32)];
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[toolbarItem setMaxSize:CGSizeMake(32, 32)];
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}
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else if (anItemIdentifier == RemoveToolbarItemIdentifier)
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{
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var image = [[CPImage alloc] initWithContentsOfFile:[[CPBundle mainBundle] pathForResource:"remove.png"] size:CPSizeMake(30, 25)],
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highlighted = [[CPImage alloc] initWithContentsOfFile:[[CPBundle mainBundle] pathForResource:"removeHighlighted.png"] size:CPSizeMake(30, 25)];
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[toolbarItem setImage:image];
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[toolbarItem setAlternateImage:highlighted];
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[toolbarItem setTarget:self];
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[toolbarItem setAction:@selector(remove:)];
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[toolbarItem setLabel:"Remove Photo List"];
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[toolbarItem setMinSize:CGSizeMake(32, 32)];
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[toolbarItem setMaxSize:CGSizeMake(32, 32)];
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}
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return toolbarItem;
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}
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@end
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/*
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This code demonstrates how to add a category to an existing class.
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In this case, we are adding the class method +flickr_labelWithText: to
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the CPTextField class. Later on, we can call [CPTextField flickr_labelWithText:"foo"]
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to return a new text field with the string foo.
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Best practices suggest prefixing category methods with your unique prefix, to prevent collisions.
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*/
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@implementation CPTextField (CreateLabel)
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+ (CPTextField)flickr_labelWithText:(CPString)aString
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{
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var label = [[CPTextField alloc] initWithFrame:CGRectMakeZero()];
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[label setStringValue:aString];
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[label sizeToFit];
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[label setTextShadowColor:[CPColor whiteColor]];
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[label setTextShadowOffset:CGSizeMake(0, 1)];
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return label;
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}
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@end
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// This class wraps our slider + labels combo
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@implementation PhotoResizeView : CPView
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{
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}
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- (id)initWithFrame:(CGRect)aFrame
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{
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self = [super initWithFrame:aFrame];
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var slider = [[CPSlider alloc] initWithFrame:CGRectMake(30, CGRectGetHeight(aFrame) / 2.0 - 8, CGRectGetWidth(aFrame) - 65, 24)];
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[slider setMinValue:50.0];
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[slider setMaxValue:250.0];
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[slider setIntValue:150.0];
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[slider setAction:@selector(adjustImageSize:)];
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[self addSubview:slider];
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var label = [CPTextField flickr_labelWithText:"50"];
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[label setFrameOrigin:CGPointMake(0, CGRectGetHeight(aFrame) / 2.0 - 4.0)];
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[self addSubview:label];
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label = [CPTextField flickr_labelWithText:"250"];
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[label setFrameOrigin:CGPointMake(CGRectGetWidth(aFrame) - CGRectGetWidth([label frame]), CGRectGetHeight(aFrame) / 2.0 - 4.0)];
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[self addSubview:label];
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return self;
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}
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@end
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// This class displays a single photo collection inside our list of photo collecitions
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@implementation PhotosListCell : CPView
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{
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CPTextField label;
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CPView highlightView;
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}
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- (void)setRepresentedObject:(JSObject)anObject
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{
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if (!label)
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{
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label = [[CPTextField alloc] initWithFrame:CGRectInset([self bounds], 4, 4)];
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[label setFont:[CPFont systemFontOfSize:16.0]];
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[label setTextShadowColor:[CPColor whiteColor]];
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[label setTextShadowOffset:CGSizeMake(0, 1)];
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[self addSubview:label];
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}
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[label setStringValue:anObject];
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[label sizeToFit];
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[label setFrameOrigin:CGPointMake(10,CGRectGetHeight([label bounds]) / 2.0)];
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}
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- (void)setSelected:(BOOL)flag
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{
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if (!highlightView)
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{
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highlightView = [[CPView alloc] initWithFrame:CGRectCreateCopy([self bounds])];
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[highlightView setBackgroundColor:[CPColor blueColor]];
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}
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if (flag)
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{
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[self addSubview:highlightView positioned:CPWindowBelow relativeTo:label];
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[label setTextColor:[CPColor whiteColor]];
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[label setTextShadowColor:[CPColor blackColor]];
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}
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else
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{
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[highlightView removeFromSuperview];
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[label setTextColor:[CPColor blackColor]];
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[label setTextShadowColor:[CPColor whiteColor]];
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}
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}
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@end
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// This class displays a single photo from our collection
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@implementation PhotoCell : CPView
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{
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CPImage image;
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CPImageView imageView;
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CPView highlightView;
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}
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- (void)setRepresentedObject:(JSObject)anObject
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{
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if (!imageView)
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{
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imageView = [[CPImageView alloc] initWithFrame:CGRectMakeCopy([self bounds])];
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[imageView setAutoresizingMask:CPViewWidthSizable | CPViewHeightSizable];
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[imageView setImageScaling:CPScaleProportionally];
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[imageView setHasShadow:YES];
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[self addSubview:imageView];
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}
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[image setDelegate:nil];
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image = [[CPImage alloc] initWithContentsOfFile:thumbForFlickrPhoto(anObject)];
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[image setDelegate:self];
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if ([image loadStatus] == CPImageLoadStatusCompleted)
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[imageView setImage:image];
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else
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[imageView setImage:nil];
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}
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- (void)imageDidLoad:(CPImage)anImage
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{
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[imageView setImage:anImage];
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}
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- (void)setSelected:(BOOL)flag
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{
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if (!highlightView)
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{
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highlightView = [[CPView alloc] initWithFrame:[self bounds]];
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[highlightView setBackgroundColor:[CPColor colorWithCalibratedWhite:0.8 alpha:0.6]];
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[highlightView setAutoresizingMask:CPViewWidthSizable | CPViewHeightSizable];
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}
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if (flag)
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{
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[highlightView setFrame:[self bounds]];
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[self addSubview:highlightView positioned:CPWindowBelow relativeTo:imageView];
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}
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else
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[highlightView removeFromSuperview];
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}
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@end
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// helper javascript functions for turning a Flickr photo object into a URL for getting the image
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function urlForFlickrPhoto(photo)
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{
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return "http://farm" + photo.farm + ".static.flickr.com/" + photo.server + "/" + photo.id+"_" + photo.secret + ".jpg";
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}
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function thumbForFlickrPhoto(photo)
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{
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return "http://farm" + photo.farm + ".static.flickr.com/" + photo.server + "/" + photo.id + "_" + photo.secret + "_m.jpg";
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}
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