< KDE Visual Design Group | HIGRevision as of 09:56, 3 August 2017 by Elvis Angelaccio (talk | contribs) (There is no "KDE5", replace it with "Plasma 5")(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff) Purpose One of the most important aspects of presentation is alignment and placement of controls. Its theoretical foundation is based on Gestalt psychology. Human perception tends to order experience in a manner that is regular, orderly, symmetric, and simple. Visual impression is generated to an emergent whole based on several principles, called Gestalt laws. Two basic laws are: Law of proximity: an assortment of objects that are close to each other are formed into a group Law of similarity: objects will be perceptually grouped together if they are similar to each other Placement of controls should be carefully done according to Gestalt theory. Guidelines Labels Align labels to the right and connected widgets to the left, making a group of form widgets appear to be center aligned. In Qt5, using a QFormLayout handles this correctly for you. BADKDE3 form alignment GOODPlasma 5 form alignment. Controls Align groups of items vertically rather than horizontally, as this makes them easier to scan visually. Use horizontal or rectangular alignments only if they greatly improve the layout of the window. Align a group of widgets to the left. This makes use of space more efficiently. BADOSX form alignment GOODPlasma 5 form alignment. Left align controls over multiple groups (in case of right-to-left languages mirror the alignment). The visual anchor facilitates scanning of content, and left-hand alignment fits as well forms that have been oversized individually. BAD no alignment over controls GOODleft aligned controls Keep track on label size; avoid big differences in text length (even after translation), that could result in much white space for multiple aligned controls. BADAvoid very long captions In some cases it may be useful to visually separate groups of related options within one group box to facilitate scanning of the dialog. In that case, put a vertical, fixed-size spacer of 16px height between the options. Separating groups of related options with a vertical spacer. Check boxes and Radio buttons For more details on alignment of radio buttons and checkboxes see the detailed HIG pages. Addendum ColumnResizer: http://agateau.com/2011/01/28/clean-up-your-layouts-with-columnresizer/ Retrieved from "https://community.kde.org/index.php?title=KDE_Visual_Design_Group/HIG/Alignment&oldid=77841" Categories: UsabilityPresentationLayout Content is available under Creative Commons License SA 4.0 unless otherwise noted.