KWin/zh-tw

An empty desktop in KDE 4.5

The reliable and flexible window manager for KDE Plasma Desktops, now with effects!

特性預覽

• 穩定和可靠
• 混合的 3D 效果
• 容易設定
• 改進的效率

KWin (發音"kwin")是 KDE Plasma 桌面 的視窗管理員。他讓你完全操控你的視窗，確保他們不是在妨礙工作而是在說明你完成任務。他繪製視窗裝飾，每個視窗頂部的欄，帶有（可定製的）按鈕比如關閉，最大化和最小化。他同樣處理視窗移動和互相切換。

KWin 支援混成特性（compositing）, 意味著能夠使用 3D 效果來處理你的視窗。這使得視窗管理更平滑，更容易，更有效和更自然。它的硬體要求非常的適當，幾乎每個相當於2002年之後的現代系統都支援它。與某些硬體還存在一些問題，要了解更多資訊，請點擊techbase

實用功能

右擊視窗裝飾（就是標題列）或開啟 系統設定 存取 KWin 新的更容易的設定。在這你可以啟用特效以便更有效的管理你的視窗。比如你能用視窗輪轉（Present Windows）作為"視窗切換"的特效。不同於顯示圖示或是小的程式預覽縮圖，他安排整理執行中的視窗在同一個網格內，然後你能快速的選擇你要的那個視窗。只要使用 Alt-Tab快捷鍵組合，保持ALT按鍵一直按住。現在你能用 Alt按鍵遍歷選擇視窗或用滑鼠; 啟動相應的視窗。快速的擊打 Alt-Tab按鍵會顯示佇列中下一個視窗，就如以前一樣。

If your X server already supports compositing, switching it on is as easy as opening System Settings, opening the Desktop module, choosing Desktop Effects and enabling the checkbox Enable desktop effects. More advanced compositing settings (such as VSync operation, Direct rendering, compositing mode) are available through the Advanced dialog. Customising the behaviour of the KWin effects means opening the All effects tab, and choosing the plugins you want to use. Please note that only a subset of the plugins works with XRender-based compositing. For the full experience, you need to use OpenGL mode.

Employing motion physics, KWin provides your windows with a more natural feel. New desktop effects like the Cube desktop switcher and Magic Lamp minimize animation have been added. Improvements in the existing effects make window management smoother than ever. KWin has seen many performance improvements to enable these effects even on low-end hardware. Elaborate checks have been build in to ensure users with low-end hardware are not presented with an unusable setup. KWin detects the capabilities of the hardware and if needed gracefully scales its effects down. You can take control and disable these checks or change settings like the global animation speed to fine-tune your experience. When your computer is under heavy load, KWin will automatically disable the compositing temporarily to keep things running smoothly. It will notify you if it does so, and you can re-enable compositing by pressing Shift+Alt+F12. Finally, support for multiple screen handling has been improved in KWin using the new Kephal library. You can move maximized windows between Xinerama screens and the addition of external screens is handled correctly.

More information about what was introduced in KDE SC 4.2 can be found at the following link:

• kwin movie

Tutorials

You want an application to launch in a specific size and position every time

Geometry Tab

Sometimes the screen position of an application is vital to your comfort, so use the flexibility of KWin to make sure it's always where you want it.

Position the window where you want it to open, then right-click on the title-bar, choosing Advanced -> Special Window Settings. This will open a settings window, with appropriate entries already made. All you need to do now is select the Geometry tab and check Position and Size. OK - you're finished!

Script the window manager from the command line

Use the WMIface utility.

Customise the position of titlebar buttons

Configure Buttons

Take a look at System Settings -> Appearance -> Windows -> Buttons tab - and enable Use custom titlebar button positions. The options open to you may depend on your distribution or theme, and it's clear that there is more to come.

Perhaps you would like more space between the Close button and the Minimise/Maximise pair? So you will want to add a spacer - two if you wish.

To simply move things around you work with the speciman titlebar - that is the dark blue bar with a large KDE on it. Drag icons there and you will see them move in the preview window at the bottom of the screen.

You may find that you have other icons available to you. A circle indicates that the button will set that window on all desktops. Another icon that you may find useful is Shade - a toggle between rolled up (titlebar only visible) and normal view. These icons are added by dragging from the text description window onto the speciman title bar - just position them as you want to use them.

If you prefer a Classic, KDE3-style Desktop

Change to traditional desktop

Right-click on your desktop - select Desktop Settings (or Appearance Settings, in some distros). Change the Type: from Desktop to Folder View. The whole desktop is now a folderview, and another right-click on the desktop will allow you to select FolderView Settings. Set the folderview to the directory you want to use as your desktop.

A video of KWin features

A demonstration of features is here

Open applications directly into a different desktop

Use commands like

kstart --desktop 4 kate

Using with small screens (eg Netbooks)

Make the window decorations smaller

Oxygen and Laptop Styles

System Settings -> Appearance -> Windows -> Window Decoration tab. Two good options there:

Configure Oxygen Style

• Using the default style (Oxygen), select Configure Decoration and set Button Size to Small and Border Size to Tiny
• Select the Laptop

Both routes will give you slim and functional window titles and borders.

Change the base fonts

On many netbooks the screen is very clear, so that reading fonts much smaller than you expect is feasible. On my Acer Aspire One I find that 8 point is a good base settings.

Make Firefox use smaller fonts

Experimentation with about:config did not bring satisfactory results. Do this instead. Download and install gtk-chtheme from this website. Using that tool you can either set a specific font size, or better still, tell it to use your KDE desktop settings. This will work with Firefox as well as any gtk applications that you use.

KMail's Aggregation options take up too much space

See this FAQ to change it.

KMail's Folder-List Tooltips hide too many folder names

See this FAQ to change their behaviour

Gallery

The Gallery holds many screenshots of past and present desktops and effects.