public class PlaceholderWidget extends AbstractWidget<PlaceholderWidget>
HorizontalLayout) or some other niche cases easier to work with, as PlaceholderWidgets allow you to leave a "gap" of space of a fixed size. The actual need for placeholders is probably pretty rare and overuse may be a code smell. If a situation requires a lot of placeholders, it may be time to use a more powerful layout (e.g. GridLayout) with more flexible spacing ability, or improve your usage of the built-in margin code (e.g. AbstractWidget.withMargins(float, float, float, float)). That being said, placeholders can be extremely clean and effective in the niche uses where they may be necessary.hasInteractivity, hb, isHovered, leftClickStarted, onLeftClick, onMouseEnter, onMouseLeave, onRightClick, rightClickStarted| Constructor and Description |
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PlaceholderWidget(float width,
float height)
Constructs an invisible widget with the given dimensions.
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| Modifier and Type | Method and Description |
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float |
getContentHeight()
The internal content height of the widget (excludes margins).
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float |
getContentWidth()
The internal content width of the widget (excludes margins).
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protected void |
renderWidget(com.badlogic.gdx.graphics.g2d.SpriteBatch sb)
Custom widgets should implement this method for rendering.
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anchoredAt, anchoredAt, anchoredAtClamped, anchoredAtClamped, anchoredCenteredOnMouse, anchoredCenteredOnMouse, anchoredCenteredOnMouseClamped, anchoredCenteredOnMouseClamped, anchoredCenteredOnScreen, anchoredCenteredOnScreen, cancelMovementQueue, cancelMovementQueueForAllChildren, delayedTranslate, getBottom, getContentBottom, getContentCenterX, getContentCenterY, getContentLeft, getContentRight, getContentTop, getHeight, getLeft, getRight, getTop, getWidth, hide, initializeInteractivity, isMouseInBounds, isMouseInContentBounds, leftMouseClick, mouseEnter, mouseLeave, onLeftClick, onMouseEnter, onMouseLeave, onRightClick, refreshAnchor, render, renderTopLevel, resolveMovementQueue, rightMouseClick, scaleHitboxToContent, setAllDelayedMovement, setChildrenDelayedMovement, show, toString, translate, update, updateInteractivity, updateWidget, withMargins, withMargins, withMarginspublic PlaceholderWidget(float width,
float height)
width - how many pixels wide the placeholder reservesheight - how many pixels tall the placeholder reservespublic float getContentWidth()
AbstractWidgetgetContentWidth in class AbstractWidget<PlaceholderWidget>AbstractWidget.getWidth(),
AbstractWidget.getContentHeight()public float getContentHeight()
AbstractWidgetgetContentHeight in class AbstractWidget<PlaceholderWidget>AbstractWidget.getHeight(),
AbstractWidget.getContentWidth()protected void renderWidget(com.badlogic.gdx.graphics.g2d.SpriteBatch sb)
AbstractWidget
Custom widgets should implement this method for rendering. Use the inner content positions (e.g. AbstractWidget.getContentLeft(), AbstractWidget.getContentWidth(), etc.) to determine any position information necessary for rendering at a specific location. If the library is used as intended, these content locations should be accurate to where the widget needs to be rendered, as they reflect the most up to date location set by an anchoredAt call (this automatically will be interpolated if the anchorAt move is set to occur over several frames).
Note: you NEED to revert any changes you make to the SpriteBatch (e.g. setting a shader, changing the perspective matrix, etc.) by the time this function returns, as the SpriteBatch will be reused for rendering other widgets which will not expect those changes. You also don't technically need to render to this particular SpriteBatch (e.g. you can render to your own batch if you know what you're doing), as long as you follow the general intent of this function to render the widget.
renderWidget in class AbstractWidget<PlaceholderWidget>sb - the SpriteBatch the widget should be rendered onAbstractWidget.renderTopLevel(SpriteBatch)