Difference between revisions of "Projects/Usability/HIG/Toggle Buttons"

< Projects‎ | Usability‎ | HIG
Jump to: navigation, search
 
(23 intermediate revisions by one user not shown)
Line 1: Line 1:
A toggle button is a button which stays down when clicked once and goes up when clicked a second time.
+
__NOTOC__
  
==When to use==
+
== Purpose ==
 +
''Toggle buttons'' look similar to regular buttons, but are used to show or change a state rather than initiate an action. A toggle button's two states, set and unset, are shown by its appearing "pushed in" or "popped out" respectively.
  
Use a toggle button to indicate a '''state'''.
+
Toggle buttons are a valid option to indicate a state with the advance of using an icon. Compared to the related radio button or check box they are an efficient way to save screen space. But toggle buttons should be used with care outside a toolbar because the state is not clearly indicated.
  
Example: A word processor should use toggle buttons to indicate the state of "Bold", "Italic" or "Underline" formatting.
+
== Example ==
  
==When not to use==
+
== Guidelines ==
 
+
=== Is this the right control ===
Do not use a toggle button to indicate an '''action'''.
+
* Use a toggle button to indicate a state if no other control apply, i.e. in case of the [[Projects/Usability/HIG/toolbar|toolbar]].
 
+
* Prefer [[Projects/Usability/HIG/Radio_Buttons|radio buttons]] or [[Projects/Usability/HIG/Check_Box|check boxes]] outside the toolbar.
Example: A music player should not use a toggle button to implement a Play/Pause button. It should use a normal button and adjust the icon and label to represent the '''action''' which would be performed when clicked.
+
=== Behavior ===
 
+
* Group toggle buttons in case of multiple selection.
==How to use==
+
* Separate toggle buttons from other controls, so they are not mistaken for push buttons.
 
+
* Do not use a toggle button to initiate an action.
Never change the icon or label of a toggle button. The fact that it is pressed down is enough to indicate the current state of the element it represents.
+
* Do not change the label according the button state.
 
+
=== Appearance ===
Since a toggle button represents a state, in most cases the label should be a noun rather than a verb.
+
* Align groups of toggle buttons horizontally rather than vertically.
 +
* Provide an access key in the label of all toggle buttons that allows the user to set or unset the button directly from the keyboard.
 +
== Implementation ==
 +
[http://api.kde.org/4.10-api/kdelibs-apidocs/kdeui/html/classKPushButton.html#KPushButton] for generic buttons.
 +
[http://api.kde.org/4.10-api/kdelibs-apidocs/kdeui/html/classKAction.html#KAction] is used to generate buttons in toolbars.

Latest revision as of 12:07, 26 September 2013


[edit] Purpose

Toggle buttons look similar to regular buttons, but are used to show or change a state rather than initiate an action. A toggle button's two states, set and unset, are shown by its appearing "pushed in" or "popped out" respectively.

Toggle buttons are a valid option to indicate a state with the advance of using an icon. Compared to the related radio button or check box they are an efficient way to save screen space. But toggle buttons should be used with care outside a toolbar because the state is not clearly indicated.

[edit] Example

[edit] Guidelines

[edit] Is this the right control

[edit] Behavior

  • Group toggle buttons in case of multiple selection.
  • Separate toggle buttons from other controls, so they are not mistaken for push buttons.
  • Do not use a toggle button to initiate an action.
  • Do not change the label according the button state.

[edit] Appearance

  • Align groups of toggle buttons horizontally rather than vertically.
  • Provide an access key in the label of all toggle buttons that allows the user to set or unset the button directly from the keyboard.

[edit] Implementation

[1] for generic buttons. [2] is used to generate buttons in toolbars.


This page was last modified on 26 September 2013, at 12:07. This page has been accessed 6,528 times. Content is available under Creative Commons License SA 3.0 as well as the GNU Free Documentation License 1.2.
KDE® and the K Desktop Environment® logo are registered trademarks of KDE e.V.Legal