"Reprinted" Understanding and Using Firemonkey Layouts

Http://delphi.org/2015/12/skill-sprint-using-firemonkey-layouts/?utm_source=feedburner&utm_medium=feed &utm_campaign=feed%3a+delphidotorg+%28delphi.org%29

Skill sprint:using Firemonkey LayoutsPosted on 15-dec-2015 by Jim mckeeth Understanding and using Firemonkey Layouts

Firemonkey and the Fireui makes it easy-to-build one form to rule all the platforms. Combining layout controls and making use of anchors, Alignment, Padding and Margins it's easy-to-make one form that looks and works great on all platforms.

Anchors

• Position relative to one or more edge (s) of Parent:
  • Top
  • Bottom
  • Left
  • Right
• Default is Top, left
• Moves with Parent Resize
• Each control have 0 to 4 anchors

Alignment

• Aligns control within parent, setting anchors, size and position.
• Default is None.
• Anchor and fill along edge:
  • Top, Bottom, left, right
• Fill parent, but preserve aspect ratio:
  • Fit, Fitleft, Fitright
• Fill along one side of the parent (priority + other edge alignments):
  • Mostbottom, Mosttop, Mostleft, Mostright
• Resize only on one axis (width or height)
  • Vertical, Vertcenter, Horizontal, Horzcenter
• Miscellaneous
  • Client–fills client area, less other children
  • Center–no Resize, just centered
  • Contents–fills client area, ignoring other children
  • Scale–resizes and moves to maintain the relative position and size

Spacing–margins and Padding

• Margins
  • Spacing for siblings (and parent edges)
• Padding
  • Spacing for children

Tflowlayout

• Arrange child controls as words in a paragraph
• Controls arranged in order added to layout
  • Use ' Move to Front ' or ' Send to back ' to reorder
• Use Tflowlayoutbreak-Forced line break

Tgridlayout

• Arranges child controls in a grid of equal sizes
• Controls flow through grid as parent resizes
• Use itemwidth and itemheight properties
• Customize margins of individual controls

Tgridpanellayout

• Creates a grid of specified rows and columns
• Does the anchor or size of child
• Each cell can contain 1 child control
• You set the Height, Width, Align, and anchors of children
• Controls can span multiple cells

Tscaledlayout

• Stretches child controls as it's resized at runtime
• doesn ' t respect aspect ratios of controls
• Set the Align of the tscaledlayout to Fit to maintain aspect ratio
• Some styles look better zoomed than others. The font grows–it is a bitmap scale.
• Have properties for originalwidth and originalheight –compare to Width and Height to D Etermine scaling.

TScrollBox

• Allows children to take up more space than parent
• Usually anchored to Client
• Only Anchor children to Top & Left (default)
• Scroll to see additional children
  • See Also:tvertscrollbox, Thorzscrollbox, Tframedscrollbox and Tframedvertscrollbox

Ttabcontrol

• Control to group child controls into tabs
• Tabs is in a stack with one visible at a time
• tabposition: = Platformdefault to use platform default behavior
• tabposition: = None to hide navigation
• Use ttabchangeaction to animate transitions

Frames

• Reusable pieces of User Interface
  • Includes
    • The layout
    • All the event handlers
    • All the code in the Unit
• Create 1 or more Frames, then reposition based on current layout
  • Examples:
    • In Ttabcontrol for phone
    • Side-by-side for Tablet

Tmultiview

• One super panel with multiple modes
• Supported modes
  • Platformdefault
  • Drawer
  • NavigationPane
  • Panel
  • Popover
  • Custom
• Point to Masterpane, Detailpane and definable Masterbutton
• Platformdefault adapts to platform and orientation
• Custom supports user defined layout and behavior

"Reprinted" Understanding and Using Firemonkey Layouts