Mac OS X Leopard - ARCAism

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466 CHAPTER 25 MAC <strong>OS</strong> X DEVELOPMENT: THE TOOLS Most application projects will require visiting Interface Builder at least once, if not several times. Anything that can be done within Interface Builder probably should be, since it will save a lot of code. Still, as much as Interface Builder can do, chances are good you’re still going to have to write some code. Let’s close our interface and check out Xcode’s editing and debugging features. Programming in Xcode In Chapter 24, we talked a lot about abstraction and how it protects developers from changes to the underlying system. Xcode is a big part of that abstraction. By getting as many programmers on Xcode as possible, Apple has been able to introduce things like universal binaries while minimizing extra work for developers. This, even more than the general persnickety nature of professional programmers, explains why Xcode is so configurable. Since writing code is a form of word processing, many programmers become very comfortable with their editor of choice. As such, Xcode allows you to emulate the color schemes and key bindings of other editors, or to use other editors altogether. All that being said, Xcode includes a very usable editor. Xcode 3 introduces several niceties that make using Xcode’s built-in editor all the more compelling. The Editor Xcode’s editor can be invoked by selecting source code in the sidebar, and then adjusting the split pane. Double-clicking the source code will launch a new editor in its own window. Clicking the editor icon in the toolbar will open the currently selected source code within the main view itself, filling the entire right side, as shown in Figure 25-15. Figure 25-15. Xcode’s built-in editor Xcode’s editor is designed to give you as much information as possible, without getting in the way of the task at hand. It accomplishes this by several different means, which we’ll describe in the following sections.
Syntax Coloring As you type, Xcode analyzes the syntax of your code and automatically colors the text based on what it represents. While the colors can be set to your personal preference, by default, keywords are pink, macros are brown, comments are green, numerical constants are blue, and string constants are red. Since your code remains black, the colors help it stand out. It also helps you keep your strings and comments properly closed. If, for example, you forget to type a closing quotation mark, the bright pink color of your code will both indicate that something’s wrong and give you an immediate idea of where the problem is. Automatic Formatting While whitespace remains optional in most languages, no programmer I’ve ever met would consider forgoing it. Xcode will automatically indent your code, and if you like, will even insert closing braces for you. Aside from keeping your code tidy and preventing premature wear on your Tab key, automatic formatting is another trick to help you notice mistakes early. Forgetting a brace or bracket will cause subsequent lines to format improperly. Autocompletion Terseness is the enemy of readability, but descriptive variable and function names take longer to type, cramping a coder’s mind and hands. Autocompletion combines the best of both worlds. Typing just a few letters can produce descriptive, readable code. Autocompletion further saves time by inserting replaceable argument tokens in method names. Typing Cmd+/ will highlight the next token. Again, this convenience also prevents errors. Assuming you pick the correct completion, the expanded text will always be correct, while typing out the entire name by hand is prone to human error. It’s a good habit to always activate autocompletion, even when you’ve typed something out, just to make sure you didn’t make a mistake. The autocompletion suggestions list can be activated by pressing Esc. From Xcode’s preference window, you can also choose to have autocompletion occur automatically if you pause while typing. Since that could quickly become annoying, the length of the pause is also customizable. Code Scoping Xcode 3 introduces a ribbon bar that runs alongside the main code editing window. The ribbon shows varying shades of gray depending on the scope of the code beside it. This gives a quick visual check that all your braces and brackets are properly balanced. If you need a little extra indication, hovering your cursor above the ribbon will extend its shading to the code itself, giving an exact indication of scope. Code Folding CHAPTER 25 MAC <strong>OS</strong> X DEVELOPMENT: THE TOOLS 467 Xcode 3 also introduces code folding, which collapses a given scope in the editor. For example, a long if statement that doesn’t apply to what you’re trying to do can be collapsed into a single line. Similarly, functions and sections can be collapsed. The collapsing is syntax aware, and if you use the line numbering bar, the appropriate numbers will be skipped so you don’t lose your place. To fold your code, click the ribbon bar. When code is folded, a disclosure triangle will appear in the ribbon bar. Clicking this disclosure triangle will unfold that section of code.
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Mac OS X Leopard: Beyond the Manual
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PART 5 Getting to Know Darwin CHAPT
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viii CONTENTS CHAPTER 2 The File Sy
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x CONTENTS CHAPTER 7 Managing Appli
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xii CONTENTS CHAPTER 12 Address Boo
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xiv CONTENTS CHAPTER 16 iLife ’08
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xvi CONTENTS CHAPTER 21 Port Forwar
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xviii CONTENTS CHAPTER 25 Quick Loo
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xx CONTENTS Running Microsoft Windo
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xxii Acknowledgments First of all,
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Getting to Know Leopard PART 1
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4 CHAPTER 1 WORKING IN LEOPARD: THE
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10 CHAPTER 1 WORKING IN LEOPARD: TH
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28 CHAPTER 2 THE FILE SYSTEM Figure
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30 CHAPTER 2 THE FILE SYSTEM Table
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32 CHAPTER 2 THE FILE SYSTEM Table
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34 CHAPTER 2 THE FILE SYSTEM While
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36 CHAPTER 2 THE FILE SYSTEM Hidden
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38 CHAPTER 3 USING SPOTLIGHT, EXPOS
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System Preferences Many of the conf
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Option Description Click in the scr
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Table 4-2. Desktop Image Aspect Sel
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Dock The Dock preference pane (Figu
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CHAPTER 4 SYSTEM PREFERENCES 59 Fig
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Figure 4-11. The Input Menu tab in
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Figure 4-13. The Spotlight preferen
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Figure 4-16. The Display tab of the
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NOTE As you may have noticed, click
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Figure 4-22. When you have multiple
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The Options tab (Figure 4-25) provi
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Figure 4-26. The Keyboard tab in th
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Figure 4-28. The Mouse tab on the K
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Processor When you install the Xcod
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Internet & Network The next section
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Selecting Login Options (Figure 4-3
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This window requires some basic inf
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Figure 4-44. The Time Zone tab in t
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Figure 4-47. The Simple Finder The
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Figure 4-49. The Mail & iChat tab o
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Figure 4-52. The Software Update pr
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The Text to Speech tab (Figure 4-55
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Figure 4-57. The Seeing tab of the
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Figure 4-60. The Keyboard tab provi
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Today more and more features are bu
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At this point, you may be skeptical
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CHAPTER 5 CONNECTING PERIPHERALS TO
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CHAPTER 5 CONNECTING PERIPHERALS TO
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Figure 5-7. The printer Options she
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Connecting Bluetooth Devices Blueto
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The Bluetooth Setup Assistant will
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Figure 5-18. Finished successfully!
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CAUTION To eject media in Leopard,
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Connecting Other Peripherals Beside
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The Ink preference pane (Figure 5-2
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122 CHAPTER 6 COMMON LEOPARD MAINTE
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136 CHAPTER 7 BACKUP, SYNCHRONIZATI
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144 CHAPTER 8 LEOPARD SECURITY •
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146 CHAPTER 8 LEOPARD SECURITY NOTE
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148 CHAPTER 8 LEOPARD SECURITY Figu
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150 CHAPTER 8 LEOPARD SECURITY Figu
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152 CHAPTER 8 LEOPARD SECURITY •
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154 CHAPTER 8 LEOPARD SECURITY Summ
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Connecting to the Internet One of t
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Usually those three steps should ge
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NOTE One application notably missin
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Technology Description CHAPTER 9 CO
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Making an Ethernet Connection CHAPT
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Figure 9-7. A PPPoE connection work
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LEAP: Lightweight Extensible Authen
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Browsing the Web with Safari Leopar
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Figure 10-2. You can customize your
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Menu/Submenu Item Keyboard Shortcut
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Figure 10-4. All of your bookmarks,
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Figure 10-6. Safari running with ma
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CHAPTER 10 BROWSING THE WEB WITH SA
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Figure 10-10. The AutoFill options
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Private Browsing Another way to pro
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RSS Feeds in Safari RSS (Really Sim
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On the right side of the view area
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Figure 10-16. Selecting a region in
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Mail, Address Book, and iCal Mail T
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Item Keyboard Shortcut Description
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Figure 11-2. The first step in addi
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CHAPTER 11 MAIL, ADDRESS BOOK, AND
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When you select a message, its cont
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Creating Mail Rules CHAPTER 11 MAIL
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Figure 11-11. Mail will open a shee
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Using Mail Stationery The Mail appl
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Figure 11-14. Leopard’s Address B
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Creating Groups You might want to c
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Figure 11-17. iCal in Leopard (Week
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Adding Time Zone Support iCal has a
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iChat Instant messaging has been ga
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Figure 12-2. The Account Setup shee
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NOTE For more options, see the “C
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Ironically, the IM central server a
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For best results, select an even, n
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NOTE The Share My Screen... and Ask
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• Collect chats into a single win
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Figure 12-14. Tabbed chat helps you
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Working with Applications PART 4
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248 CHAPTER 13 APPLICATION BASICS S
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250 CHAPTER 13 APPLICATION BASICS F
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252 CHAPTER 13 APPLICATION BASICS F
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254 CHAPTER 13 APPLICATION BASICS T
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256 CHAPTER 14 APPLE APPS INCLUDED
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266 CHAPTER 15 .MAC NOTE You can al
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268 CHAPTER 15 .MAC iDisk Another f
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iLife ’08 Apple’s iLife ’08 i
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NOTE iPhoto keeps track of all your
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Figure 16-3. iMovie ’08 and its n
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Figure 16-5. Building a Welcome pag
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New in GarageBand ’08 is a featur
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iWork ’08 Apple has been producin
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One great feature of Keynote is tha
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Figure 17-4. A Pages document in Pa
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Getting to Know Darwin PART 5
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290 CHAPTER 18 INTRODUCING DARWIN A
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330 CHAPTER 19 EXTENDING THE POWER
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Leopard Networking The Mac is known
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Selecting Always Allow will add the
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You can also use Little Snitch to s
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theory behind Ping is that any mach
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So, while Network Utility is a good
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Apple includes a second utility for
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Figure 20-11. Setting up port forwa
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366 CHAPTER 21 WORKING WITH REMOTE
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Leopard As a Web Server There are s
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Figure 22-3. The Networking pane of
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If you’re developing web content,
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VirtualHost If you’ve got a web s
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What makes this directive interesti
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all that stuff is now handled autom
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Figure 22-7. The MySQL pane in Syst
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Domain Name Tricks Were you so incl
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PART Leopard Development and Script
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402 CHAPTER 23 MAC OS X AUTOMATION
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CHAPTER 27 WORKING WITH MICROSOFT W
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Appendixes
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526 APPENDIX A WHAT’S NEW WITH LE
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544 APPENDIX B INSTALLING MAC OS X
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Index Symbols and Numerics # (hash)
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alloc method, Objective-C, 483, 492
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Attach File command, Mail, 199 atta
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CalDAV standard, 430 iCal and, 227
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emote computing by Secure Shell in
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digital cameras connecting, 117-118
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saving text, 318, 319 searching tex
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filters Core Image filters, 439 Ima
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ftps (FTP Secure), 367 function key
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Instant Message framework, 431 inte
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IP addresses, 163 configuring Mac f
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list (port list) command, MacPorts,
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memory management, Objective-C, 482
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New Message window, Mail, 217 New N
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password sheet creating keychains a
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opening, 106 Supply Levels tab, 106
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unning PowerPC code, 518 Rotate too
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Services option, Mail, 198 set comm
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Spotlight Comments section, Info wi
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identifying differences in document
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users running commands, 303 who els
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Window items, Safari, 178 Window me
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