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== Вступ: для чого призначено і для чого не призначено Плазму ==
 
== Вступ: для чого призначено і для чого не призначено Плазму ==
  
''Plasma'' is the desktop interface for ''KDE Software Compilation 4'', including the application launcher (start menu), the desktop and the desktop panel (often referred to simply as the task bar, although that is only one component of the panel).
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''Плазма'' є комплексом програм, що забезпечує роботу інтерфейсу стільниці KDE 4, зокрема інструменту запуску програм (меню запуску), стільниці і панелі стільниці (яку часто просто називають панеллю задач).
  
 
== Plasma at a glance ==
 
== Plasma at a glance ==

Revision as of 14:54, 29 July 2010

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Dialog-information.png
Інформація
Якщо ви шукаєте ЧаП з Плазми, його поточну версію можна знайти на цій сторінці.


Вступ: для чого призначено і для чого не призначено Плазму

Плазма є комплексом програм, що забезпечує роботу інтерфейсу стільниці KDE 4, зокрема інструменту запуску програм (меню запуску), стільниці і панелі стільниці (яку часто просто називають панеллю задач).

Plasma at a glance

A typical Plasma desktop looks like this:

KDESC Default Desktop.png

The three key components of a Plasma desktop are:

  • The panel, better known as task bar, which provides room for the application launcher, the list of tasks (programs), clock and system tray;
  • The desktop, the area where widgets and icons reside;
  • The Plasma toolbox This is located at the top right of the screen. There is also one on the right of the panel.

Finding your way around Plasma

You can use Plasma as you would use the desktop of any other operating system, by accessing the application menu (K Menu), viewing the currently active programs on the taskbar, accessing icons on the system tray, and so on.

An important part of Plasma are the so-called widgets. Widgets are the individual units of the desktop and they include (although they are not limited to) the application menu, icons, the system tray, the clock... Widgets can exist on the desktop itself, or be inserted in the panel. Panels and desktops are actually special kinds of widgets, meant to contain other widgets (in Plasma terms, they are called "Containments").

How does that relate with desktop usage? Plasma has also some new features with respect to traditional desktop usage. We have already mentioned the Plasma toolboxes, sometimes also called "cashews": those are the way to start interacting and customizing Plasma. By clicking on them, a menu will pop up on the screen with a variety of choices: from there you can add widgets to your panel or desktop, resize, add or remove panels, and other operations.

Desktop and icons

As you may notice from the screenshot, there are no icons placed directly on the desktop. Instead, they are placed inside a container, better known as Folder View. Although there are a number of technical reasons for doing so, the Folder View can perfectly act as a desktop replacement (in fact, it shows the Desktop folder by default). You can drag icons over it, cut, copy, paste, rename files and also create new folders/files.

The main differences from the usual Desktop folder are essentially two:

  • You can have more than one Folder View on the desktop itself;
  • You can set Folder View to show also different folders (both local and on the network).

Aside from the Folder View, you can put on the desktop all kinds of widgets, such as weather reporting widgets, notes widgets, file watchers... There are no limits on what you can customize.

Widgets everywhere

In KDE SC 4.x Plasma supports not only widgets written specifically for Plasma (also known as Plasmoids) but also ones from other sources such as Google Gadgets and Dashboard Widgets from Mac OSX. Additional widgets can easily be found and installed through Get Hot New Stuff.

Widgets that are docked into the panel usually have an Options menu, while those on the desktop have the configuration options within the 'handle', the shaded area which pops up, sometimes right or sometimes left of the widget. Clicking and holding the mouse on the blank part of the handle will allow you to drag the widget to the desired position.

Handle.png

You have four tools on this handle. The top one is the re-sizer. Click and hold on the tool and you can drag the size.

The second tool is a rotate tool. Again, click and hold the tool, while rotating to desired angle.

Handle rotate.png


The third is the wrench or spanner which allows you to configure that particular widget's settings.

Finally, the forth tool is used on some widgets like the Picture Frame. If you use the Picture Frame widget for example, it will open the image viewer.

Some of our favourite widgets are discussed on the Plasma Widgets page

The start menus

Start menus etc.

The Panel

Panel Settings.png

The panel can be configured by clicking on the toolbox on the right of the panel which puts the panel into configure mode. This lets you configure the panel to fit your needs.

Panel Alignment: Allows the alignment of the panel to be set in three pre-set positions.

Always Visible: Keeps the panel visible at all times, even when windows are maximised.

Auto Hide: Hides the panel off screen until the mouse is placed near the screen edge.

Windows can cover: This allows windows to cover the panel and if maximised, will cover the panel.

Windows go below: This allows windows to go below the panel, even when maximised.

Maximise Panel: Makes the panel fit to the screen edges, if it has been resized.

Remove this panel: Removes the current panel.

Lock Widgets: Locks the panel and widgets in position.

Add Spacer: Allows you to add a spacer into the panel giving space between the items in it.

Add Widgets: Allows widgets to be added to the panel.

Height: Allows the panel height to be adjusted.

Screen Edge: Allows you to drag the panel to any of the four edges of the screen.

Panel Settings resize.png

The arrows on the edge, just below the main settings allow the panel's size to be adjusted. Dragging the arrow makes the panel smaller or larger. Dragging the arrow pointing down, moves the panel's position.

Advanced usage

Special cases not covered here

Activities and the Zooming User Interface (ZUI)

KDE Plasma has brought a lot of new features to the modern linux desktop, however many people are only using a fraction of the desktop's full potential. One of the most useful and underused features is the plasma activities. The basic idea behind is that your desktop space is limited to how many widgets it can hold. A user will want to use a lot of widgets but doesn't want their desktop to be cluttered. The answer to this problem is activities; they allow you to specialize each desktop to whatever task you need to accomplish. To make a new activity you have to click on the toolbox in the upper right hand corner, from there click zoom out. The desktop will zoom out then click add new activity under the small desktop. It will make a new desktop right next to it. Now go click the zoom in button under the new desktop. With this desktop you can add whatever widgets to this desktop and it will not affect the other desktop.

Activities and Virtual Desktops

Virtual desktops, the ability to have a separate sets of windows on separate desktops, can tie in with Activities. You can have a different activity on each virtual desktop. In Plasma Desktop 4.4, this can be configured by entering System Settings and navigating to Desktop -> Multiple Desktops, and checking "Different Activity for Each Desktop".

In Plasma Desktop 4.3, You configure this by zooming out and choosing "configure Plasma". Then select "use a different activity on each desktop" and zoom in again.

Use Cases

A user likes web comics so they add their favorite web comics via the comics widget. The user now has a full desktop activity dedicated to their favorite web comics. Now the user is happy with the web comics, but the user now has to go to work, so the user creates a activity with the folder view widgets set to the folders of the projects the user is currently working on. After work the user goes home and works on a side project of writing romance novels. The user always gains inspiration by looking at pictures of the user's significant other. The user now creates a new Activity but now puts pictures frame widgets with pictures of the user's significant other. The user also has a folder view of the romance novel project folder. Now no matter what the user is doing the user has a custom tailored activity to match it.

Go to this blog to read a few tips on using activities.

Hints and Tips

The Taskbar

Accessing the Taskbar Settings Menu: Click the panel toolbox (aka cashew), then right-click on the taskbar. From there you can access the Taskbar Settings dialog. The following settings are particularly useful:

Grouping and Sorting: Grouping can be by program name, manually, or not at all. (You can also choose to only enable grouping if the taskbar is full.) Similarly, Sorting defaults to alphabetically, but it can also be by desktop, manually, or not sorted.
Only Show Tasks from the Current Desktop: A checkbox on the Filters section.
Have More than One Row on the Taskbar: If you use many applications at one time you may find it advantageous to set Maximum Rows and then Force Row Settings.
Showing or Hiding Tooltips: A simple checkbox in the Appearance section of the General page.

Tweaking Plasma

Learn how to add a sidebar with clock and news
Customize your Plasma by mixing multiple Plasma themes

Further information


Back to the Introduction page

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