Difference between revisions of "Sprite:setLayoutConstraints"
From GiderosMobile
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| + | <languages /> | ||
'''<translate>Available since</translate>:''' Gideros 2018.9<br/> | '''<translate>Available since</translate>:''' Gideros 2018.9<br/> | ||
'''<translate>Class</translate>:''' [[Special:MyLanguage/Sprite|Sprite]]<br/> | '''<translate>Class</translate>:''' [[Special:MyLanguage/Sprite|Sprite]]<br/> | ||
=== <translate>Description</translate> === | === <translate>Description</translate> === | ||
<translate><br /> | <translate><br /> | ||
| − | <br /></translate> | + | <br /> |
| + | This function specify the child placement rules within the grid defined on its parent by [[Special:MyLanguage/Sprite:setLayoutParameters|Sprite:setLayoutParameters]].<br /> | ||
| + | Gideros layout system is heavily based on Java GridBagLayout principle. See here for more explanation: | ||
| + | https://www.math.uni-hamburg.de/doc/java/tutorial/uiswing/layout/gridbag.html | ||
| + | |||
| + | The constraint table can contain the following fields: | ||
| + | * '''gridx''': The 0-based index of the column the child must be placed into<br/> | ||
| + | * '''gridy''': The 0-based index of the row the child must be placed into<br/> | ||
| + | * '''gridwidth''': The number of column this child will take<br/> | ||
| + | * '''gridheight''': The number of row this child will take<br/> | ||
| + | * '''weightx''': The horizontal weight of the child. Used to distribute extra space among children<br/> | ||
| + | * '''weighty''': The vertical weight of the child. Used to distribute extra space among children<br/> | ||
| + | * '''anchor''': Defines where the child should be placed inside its grid space. | ||
| + | Can be [[Special:MyLanguage/Sprite.LAYOUT_ANCHOR_NORTHWEST|Sprite.LAYOUT_ANCHOR_NORTHWEST]], [[Special:MyLanguage/Sprite.LAYOUT_ANCHOR_NORTH|Sprite.LAYOUT_ANCHOR_NORTH]], [[Special:MyLanguage/Sprite.LAYOUT_ANCHOR_NORTHEAST|Sprite.LAYOUT_ANCHOR_NORTHEAST]], | ||
| + | [[Special:MyLanguage/Sprite.LAYOUT_ANCHOR_WEST|Sprite.LAYOUT_ANCHOR_WEST]], [[Special:MyLanguage/Sprite.LAYOUT_ANCHOR_CENTER|Sprite.LAYOUT_ANCHOR_CENTER]], [[Special:MyLanguage/Sprite.LAYOUT_ANCHOR_EAST|Sprite.LAYOUT_ANCHOR_EAST]], | ||
| + | [[Special:MyLanguage/Sprite.LAYOUT_ANCHOR_SOUTHWEST|Sprite.LAYOUT_ANCHOR_SOUTHWEST]], [[Special:MyLanguage/Sprite.LAYOUT_ANCHOR_SOUTH|Sprite.LAYOUT_ANCHOR_SOUTH]] or [[Special:MyLanguage/Sprite.LAYOUT_ANCHOR_SOUTHEAST|Sprite.LAYOUT_ANCHOR_SOUTHEAST]]<br/> | ||
| + | * '''fill''': In which directions the child should be expanded to fit the grid space. Can be [[Special:MyLanguage/Sprite.LAYOUT_FILL_NONE|Sprite.LAYOUT_FILL_NONE]], [[Special:MyLanguage/Sprite.LAYOUT_FILL_HORIZONTAL|Sprite.LAYOUT_FILL_HORIZONTAL]], [[Special:MyLanguage/Sprite.LAYOUT_FILL_VERTICAL|Sprite.LAYOUT_FILL_VERTICAL]] or [[Special:MyLanguage/Sprite.LAYOUT_FILL_BOTH|Sprite.LAYOUT_FILL_BOTH]]<br/> | ||
| + | * '''ipadx''': Internal horizontal padding<br/> | ||
| + | * '''ipady''': Internal vertical padding<br/> | ||
| + | * '''minWidth''': Minimum width<br/> | ||
| + | * '''minHeight''': Minimum height<br/> | ||
| + | * '''prefWidth''': Preferred width<br/> | ||
| + | * '''prefHeight''': Preferred height<br/> | ||
| + | * '''insetTop''': the top margin<br/> | ||
| + | * '''insetLeft''': the left margin<br/> | ||
| + | * '''insetBottom''': the bottom margin<br/> | ||
| + | * '''insetRight''': the right margin<br/> | ||
| + | |||
| + | Specifying a '''nil''' table will clear layout constraints. | ||
| + | When a [[Special:MyLanguage/Sprite|Sprite]] is resized by the layout system, a ''Event.LAYOUT_RESIZDE'' is triggered.</translate> | ||
<source lang="lua"> | <source lang="lua"> | ||
Sprite:setLayoutConstraints(constraints) | Sprite:setLayoutConstraints(constraints) | ||
Revision as of 09:57, 3 September 2018
Available since: Gideros 2018.9
Class: Sprite
Description
This function specify the child placement rules within the grid defined on its parent by Sprite:setLayoutParameters.
Gideros layout system is heavily based on Java GridBagLayout principle. See here for more explanation:
https://www.math.uni-hamburg.de/doc/java/tutorial/uiswing/layout/gridbag.html
The constraint table can contain the following fields:
- gridx: The 0-based index of the column the child must be placed into
- gridy: The 0-based index of the row the child must be placed into
- gridwidth: The number of column this child will take
- gridheight: The number of row this child will take
- weightx: The horizontal weight of the child. Used to distribute extra space among children
- weighty: The vertical weight of the child. Used to distribute extra space among children
- anchor: Defines where the child should be placed inside its grid space.
Can be Sprite.LAYOUT_ANCHOR_NORTHWEST, Sprite.LAYOUT_ANCHOR_NORTH, Sprite.LAYOUT_ANCHOR_NORTHEAST,
Sprite.LAYOUT_ANCHOR_WEST, Sprite.LAYOUT_ANCHOR_CENTER, Sprite.LAYOUT_ANCHOR_EAST,
Sprite.LAYOUT_ANCHOR_SOUTHWEST, Sprite.LAYOUT_ANCHOR_SOUTH or Sprite.LAYOUT_ANCHOR_SOUTHEAST
- fill: In which directions the child should be expanded to fit the grid space. Can be Sprite.LAYOUT_FILL_NONE, Sprite.LAYOUT_FILL_HORIZONTAL, Sprite.LAYOUT_FILL_VERTICAL or Sprite.LAYOUT_FILL_BOTH
- ipadx: Internal horizontal padding
- ipady: Internal vertical padding
- minWidth: Minimum width
- minHeight: Minimum height
- prefWidth: Preferred width
- prefHeight: Preferred height
- insetTop: the top margin
- insetLeft: the left margin
- insetBottom: the bottom margin
- insetRight: the right margin
Specifying a nil table will clear layout constraints. When a Sprite is resized by the layout system, a Event.LAYOUT_RESIZDE is triggered.
Sprite:setLayoutConstraints(constraints)
Parameters
constraints: (table) Table of layout constraints.
