SUSE Linux 10 for dummies phần 4

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SUSE Linux 10 for dummies phần 4 67 Chapter 5: Exploring the SUSE Desktops Figure 5-6: An icon context menu in GNOME. For the Trash icon, the icon context menu typically provides an option to per- manently delete the items in the trash. (You get a chance to choose Yes or No.) I bet you see a pattern here. It’s the right-click. No matter where you are on a GUI desktop, always right-click before you pick. You’re bound to find some- thing useful when you right-click! The panels The panel is the long bar that stretches across the bottom of the KDE desk- top and both the top and bottom of the GNOME desktop. Figures 5-7 and 5-8 show typical views of the KDE and GNOME panels, respectively.Figure 5-7: A typicalview of theKDE panel. Figure 5-8: A typical view of thetop GNOME panel.68 Part II: Test-Driving SUSE The panel is a parking place for icons. Some icons open up menus from which you can select applications to run and some icons start applications when you click them. Some show the status (such as what programs are currently running) as well as other useful information such as the date and time. Starting at the left, the first icon (regardless of what it shows) in the KDE panel and GNOME top panel is the Main Menu button — it’s like the Start button in Microsoft Windows. Then come a few icons that start various programs. In GNOME, you have more menu buttons — System Menu for system tasks such as configuring the system or logging out and Help Menu for accessing online help. The date and time icon appears at the far-right edge of the panel. By the way, if you move the mouse pointer on top of an icon, a small Help bal- loon pops up and gives you a helpful hint about the icon. Now for a little bit of technical detail about these icons on the panel. The panel itself is a separate application; each icon is a button or a program called an applet. The applets are little applications (also called plugins). These panel applets can do things such as launch other programs or display the date and time. To add an applet to the panel, right-click an empty area of the panel and select the appropriate menu item to add an applet to the panel. After adding the applet, you can right-click the applet’s icon to configure it or perform some task that the applet supports. If you right-click any icon — or right-click anywhere on the panel — you get a context menu where you can do something relevant to that icon (such as move it or remove it entirely). You can also set some preferences and add more buttons and applets to the panel. The Main Menu or Applications Menu The leftmost icon on the KDE panel and the GNOME desktop’s top panel is the Main Menu button. On the GNOME top panel, the button is labeled Applications. The Main Menu is where you typically find all the applications, organized into submenus. I provide an overview of the Main Menu and point out some inter- esting items. You can then further explore the menus yourself. Click the Main Menu button to bring up the first-level menu. Then mouse over any menu item with an arrow to bring up the next level’s menu and so on. You can go through a menu hierarchy and make selections from the final menu. Figures 5-9 and 5-10, respectively, show the Main Menu hierarchies in typical KDE and GNOME desktops. 69 Chapter 5: Exploring the SUSE Desktops Figure 5-9: The Main Menuhierarchy in a typical KDE desktop.Figure 5-10: The Main Menuhierarchy in a typical GNOME desktop.70 Part II: Test-Driving SUSE A word about the way I refer to a menu selection: I use the notation Main Menu➪Utilities➪Desktop➪KSnapshot to refer to the menu selection shown in Figure 5-9. Similarly, I say choose Main Menu➪Internet➪Web Browser➪ Firefox Web Browser to refer to the menu sequence highlighted in Figure 5-10. You get the idea. By the way, you could refer to the menu selection in Fig ...