objective-c o2d draw about quartz simple objective-c draw source code

QuartzFun
.........\Classes
.........\.......\Constants.h
__MACOSX
........\QuartzFun
........\.........\Classes
........\.........\.......\._Constants.h
QuartzFun\Classes\QuartzFunAppDelegate.h
__MACOSX\QuartzFun\Classes\._QuartzFunAppDelegate.h
QuartzFun\Classes\QuartzFunAppDelegate.m
__MACOSX\QuartzFun\Classes\._QuartzFunAppDelegate.m
QuartzFun\Classes\QuartzFunView.h
__MACOSX\QuartzFun\Classes\._QuartzFunView.h
QuartzFun\Classes\QuartzFunView.m
__MACOSX\QuartzFun\Classes\._QuartzFunView.m
QuartzFun\Classes\QuartzFunViewController.h
__MACOSX\QuartzFun\Classes\._QuartzFunViewController.h
QuartzFun\Classes\QuartzFunViewController.m
__MACOSX\QuartzFun\Classes\._QuartzFunViewController.m
QuartzFun\Classes\UIColor-Random.h
__MACOSX\QuartzFun\Classes\._UIColor-Random.h
QuartzFun\Classes\UIColor-Random.m
__MACOSX\QuartzFun\Classes\._UIColor-Random.m
........\.........\._Classes
QuartzFun\iphone.png
__MACOSX\QuartzFun\._iphone.png
QuartzFun\main.m
__MACOSX\QuartzFun\._main.m
QuartzFun\MainWindow.xib
__MACOSX\QuartzFun\._MainWindow.xib
QuartzFun\QuartzFun-Info.plist
__MACOSX\QuartzFun\._QuartzFun-Info.plist
QuartzFun\QuartzFun.xcodeproj
.........\...................\project.pbxproj
__MACOSX\QuartzFun\QuartzFun.xcodeproj
........\.........\...................\._project.pbxproj
........\.........\._QuartzFun.xcodeproj
QuartzFun\QuartzFun_Prefix.pch
__MACOSX\QuartzFun\._QuartzFun_Prefix.pch
QuartzFun\QuartzFunViewController.xib
__MACOSX\QuartzFun\._QuartzFunViewController.xib
........\._QuartzFun

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