qx.ui.layout.impl
Class LayoutImpl

java.lang.Object
  qx.core.Object
      qx.ui.layout.impl.LayoutImpl

Direct Known Subclasses:

CanvasLayoutImpl, DockLayoutImpl, FlowLayoutImpl, GridLayoutImpl, HorizontalBoxLayoutImpl, VerticalBoxLayoutImpl

public class LayoutImpl
extends Object

Abstact base class of all layout implementations

Constructor Summary

LayoutImpl()

LayoutImpl(java.lang.Object vWidget)

Method Summary

java.lang.Integer	computeChildBoxHeight(Widget vChild) Compute and return the box height of the given child
java.lang.Integer	computeChildBoxWidth(Widget vChild) Compute and return the box width of the given child
java.lang.Integer	computeChildNeededHeight(Widget vChild) Compute and return the needed height of the given child
java.lang.Integer	computeChildNeededWidth(Widget vChild) Compute and return the needed width of the given child
java.lang.Integer	computeChildrenNeededHeight_max() Calculate the maximum needed height of all children
java.lang.Integer	computeChildrenNeededHeight_sum() Compute and return the height needed by all children of this widget
java.lang.Integer	computeChildrenNeededWidth_max() Calculate the maximum needed width of all children
java.lang.Integer	computeChildrenNeededWidth_sum() Compute and return the width needed by all children of this widget
void	flushChildrenQueue(java.lang.Object vChildrenQueue) Has full control of the order in which the registered (or non-registered) children should be layouted.
Parent	getWidget() Returns the associated widget
void	layoutChild_marginX(Widget vChild, java.lang.Object vJobs) Apply the X margin values as pure stylesheet equivalent.
void	layoutChild_marginY(Widget vChild, java.lang.Object vJobs) Apply the Y margin values as pure stylesheet equivalent.
void	layoutChild_sizeLimitX(Widget vChild, java.lang.Object vJobs) Apply min-/max-width to the child.
void	layoutChild_sizeLimitY(Widget vChild, java.lang.Object vJobs) Apply min-/max-height to the child.
java.lang.Object	layoutChild_sizeX_essentialWrapper(java.lang.Object vChild, java.lang.Object vJobs)
java.lang.Object	layoutChild_sizeY_essentialWrapper(java.lang.Object vChild, java.lang.Object vJobs)
void	layoutChild(Widget vChild, java.lang.Object vJobs) Called from qx.ui.core.Parent.
void	updateChildOnInnerHeightChange(Widget vChild) Actions that should be done if the inner height of the layout widget has changed.
boolean	updateChildOnInnerWidthChange(Widget vChild) Actions that should be done if the inner width of the layout widget has changed.
void	updateChildrenOnAddChild(Widget vChild, java.lang.Integer vIndex) Add child to current layout.
boolean	updateChildrenOnJobQueueFlush(java.lang.Object vJobQueue) Updates children on job queue flush.
void	updateChildrenOnMoveChild(Widget vChild, java.lang.Integer vIndex, java.lang.Integer vOldIndex) Move child within its parent to a new position.
void	updateChildrenOnRemoveChild(Widget vChild, java.lang.Integer vIndex) Remove child from current layout.
void	updateSelfOnChildOuterHeightChange(Widget vChild) Things to do and layout when any of the childs changes its outer height.
void	updateSelfOnChildOuterWidthChange(Widget vChild) Things to do and layout when any of the childs changes its outer width.
void	updateSelfOnJobQueueFlush(java.lang.Object vJobQueue) Invalidate and recompute cached data according to job queue.

Methods inherited from class qx.core.Object

_disposeFields, _disposeObjectDeep, _disposeObjects, base, dispose, get, getDisposed, isDisposed, reset, self, set, toHashCode, toString_

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LayoutImpl

public LayoutImpl()

LayoutImpl

public LayoutImpl(java.lang.Object vWidget)

Method Detail

computeChildBoxHeight

public java.lang.Integer computeChildBoxHeight(Widget vChild)

Compute and return the box height of the given child

computeChildBoxWidth

public java.lang.Integer computeChildBoxWidth(Widget vChild)

Compute and return the box width of the given child

computeChildNeededHeight

public java.lang.Integer computeChildNeededHeight(Widget vChild)

Compute and return the needed height of the given child

computeChildNeededWidth

public java.lang.Integer computeChildNeededWidth(Widget vChild)

Compute and return the needed width of the given child

computeChildrenNeededHeight_max

public java.lang.Integer computeChildrenNeededHeight_max()

Calculate the maximum needed height of all children

computeChildrenNeededHeight_sum

public java.lang.Integer computeChildrenNeededHeight_sum()

Compute and return the height needed by all children of this widget

computeChildrenNeededWidth_max

public java.lang.Integer computeChildrenNeededWidth_max()

Calculate the maximum needed width of all children

computeChildrenNeededWidth_sum

public java.lang.Integer computeChildrenNeededWidth_sum()

Compute and return the width needed by all children of this widget

flushChildrenQueue

public void flushChildrenQueue(java.lang.Object vChildrenQueue)

Has full control of the order in which the registered (or non-registered) children should be layouted.

getWidget

public Parent getWidget()

Returns the associated widget

layoutChild

public void layoutChild(Widget vChild,
                        java.lang.Object vJobs)

Called from qx.ui.core.Parent. Its task is to apply the layout (excluding border and padding) to the child.

layoutChild_marginX

public void layoutChild_marginX(Widget vChild,
                                java.lang.Object vJobs)

Apply the X margin values as pure stylesheet equivalent.

layoutChild_marginY

public void layoutChild_marginY(Widget vChild,
                                java.lang.Object vJobs)

Apply the Y margin values as pure stylesheet equivalent.

layoutChild_sizeLimitX

public void layoutChild_sizeLimitX(Widget vChild,
                                   java.lang.Object vJobs)

Apply min-/max-width to the child. Direct usage of stylesheet properties. This is only possible in modern capable clients (i.e. excluding all current versions of Internet Explorer)

layoutChild_sizeLimitY

public void layoutChild_sizeLimitY(Widget vChild,
                                   java.lang.Object vJobs)

Apply min-/max-height to the child. Direct usage of stylesheet properties. This is only possible in modern capable clients (i.e. excluding all current versions of Internet Explorer)

layoutChild_sizeX_essentialWrapper

public java.lang.Object layoutChild_sizeX_essentialWrapper(java.lang.Object vChild,
                                                           java.lang.Object vJobs)

layoutChild_sizeY_essentialWrapper

public java.lang.Object layoutChild_sizeY_essentialWrapper(java.lang.Object vChild,
                                                           java.lang.Object vJobs)

updateChildOnInnerHeightChange

public void updateChildOnInnerHeightChange(Widget vChild)

Actions that should be done if the inner height of the layout widget has changed. Normally this includes updates to percent values and ranges.

Subclasses might implement this method

updateChildOnInnerWidthChange

public boolean updateChildOnInnerWidthChange(Widget vChild)

Actions that should be done if the inner width of the layout widget has changed. Normally this includes updates to percent values and ranges.

Subclasses might implement this method

updateChildrenOnAddChild

public void updateChildrenOnAddChild(Widget vChild,
                                     java.lang.Integer vIndex)

Add child to current layout. Rarely needed by some layout implementations.

Subclasses might implement this method

updateChildrenOnJobQueueFlush

public boolean updateChildrenOnJobQueueFlush(java.lang.Object vJobQueue)

Updates children on job queue flush. This is executed at the end of the job queue handling.

Subclasses might implement this method

updateChildrenOnMoveChild

public void updateChildrenOnMoveChild(Widget vChild,
                                      java.lang.Integer vIndex,
                                      java.lang.Integer vOldIndex)

Move child within its parent to a new position. Needed by layouts where the children depend on each other, like flow or box layouts.

Subclasses might implement this method

updateChildrenOnRemoveChild

public void updateChildrenOnRemoveChild(Widget vChild,
                                        java.lang.Integer vIndex)

Remove child from current layout. Needed by layouts where the children depend on each other, like flow or box layouts.

Subclasses might implement this method

updateSelfOnChildOuterHeightChange

public void updateSelfOnChildOuterHeightChange(Widget vChild)

Things to do and layout when any of the childs changes its outer height. Needed by layouts where the children depend on each other, like flow or box layouts.

Subclasses might implement this method

updateSelfOnChildOuterWidthChange

public void updateSelfOnChildOuterWidthChange(Widget vChild)

Things to do and layout when any of the childs changes its outer width. Needed by layouts where the children depend on each other, like flow or box layouts.

Subclasses might implement this method

updateSelfOnJobQueueFlush

public void updateSelfOnJobQueueFlush(java.lang.Object vJobQueue)

Invalidate and recompute cached data according to job queue. This is executed at the beginning of the job queue handling.

Subclasses might implement this method