Package org.loboevolution.html.renderer

Class RBlock

java.lang.Object

org.loboevolution.html.renderer.BaseRenderable

org.loboevolution.html.renderer.RRectangle

org.loboevolution.html.renderer.BaseBoundableRenderable

org.loboevolution.html.renderer.BaseRCollection

org.loboevolution.html.renderer.BaseElementRenderable

org.loboevolution.html.renderer.RBlock

All Implemented Interfaces:

ImageObserver, UINode, BoundableRenderable, RCollection, RElement, Renderable, RenderableContainer

Direct Known Subclasses:

RTableCell

public class RBlock
extends BaseElementRenderable

Represents a HTML block in a rendered document, typically a DIV. The root renderer node is of this type as well.

Immediately below an RBlock you will find a node of type RBlockViewport.

Field Summary

Fields

Modifier and Type	Field	Description
protected final RBlockViewport	bodyLayout
protected int	defaultOverflowX
protected int	defaultOverflowY
protected RenderableSpot	endSelection
protected final FrameContext	frameContext
protected boolean	hasHScrollBar
protected boolean	hasVScrollBar
protected final int	listNesting
protected final HtmlRendererContext	rendererContext
protected RenderableSpot	startSelection

Fields inherited from class org.loboevolution.html.renderer.BaseElementRenderable

backgroundColor, backgroundImage, borderBottomColor, borderInfo, borderInsets, borderLeftColor, borderRightColor, borderTopColor, delayedPairs, INVALID_SIZE, lastBackgroundImageUri, layoutDeepCanBeInvalidated, marginInsets, overflowX, overflowY, paddingInsets, relativeOffsetX, relativeOffsetY, SCROLL_BAR_THICKNESS, userAgentContext, zIndex

Fields inherited from class org.loboevolution.html.renderer.BaseBoundableRenderable

container, layoutUpTreeCanBeInvalidated, modelNode, originalParent, parent, SELECTION_COLOR, SELECTION_XOR

Fields inherited from interface java.awt.image.ImageObserver

ABORT, ALLBITS, ERROR, FRAMEBITS, HEIGHT, PROPERTIES, SOMEBITS, WIDTH

Fields inherited from interface org.loboevolution.html.renderer.Renderable

EMPTY_ARRAY

Constructor Summary

Constructors

Constructor	Description
RBlock(RBlockInfo info)	Constructor for RBlock.

Method Summary

Modifier and Type	Method	Description
protected void	clearStyle(boolean isRootBlock)	clearStyle.
final void	doLayout(int availWidth, int availHeight, boolean sizeOnly)	doLayout.
void	doLayout(RLayoutInfo info)	Lays out and sets dimensions only if RBlock is invalid (or never before layed out), if the parameters passed differ from the last layout, or if the current font differs from the font for the last layout.
void	ensureVisible(Point point)	ensureVisible.
boolean	extractSelectionText(StringBuilder buffer, boolean inSelection, RenderableSpot startPoint, RenderableSpot endPoint)	extractSelectionText.
Rectangle	getClipBoundsWithoutInsets()	getClipBoundsWithoutInsets.
FloatingInfo	getExportableFloatingInfo()	getExportableFloatingInfo.
int	getFirstBaselineOffset()	getFirstBaselineOffset.
int	getFirstLineHeight()	getFirstLineHeight.
RenderableSpot	getLowestRenderableSpot(int x, int y)	getLowestRenderableSpot.
Color	getPaintedBackgroundColor()	getPaintedBackgroundColor.
RBlockViewport	getRBlockViewport()	getRBlockViewport.
List<Renderable>	getRenderables()	getRenderables.
int	getViewportListNesting(int blockNesting)	getViewportListNesting.
int	getVisualHeight()	getVisualHeight.
int	getVisualWidth()	getVisualWidth.
int	getVScrollBarWidth()	Gets the width the vertical scrollbar has when shown.
int	getX()	getX.
int	getY()	getY.
void	invalidateLayoutLocal()	invalidateLayoutLocal.
final boolean	isOverflowVisibleX()	isOverflowVisibleX.
final boolean	isOverflowVisibleY()	isOverflowVisibleY.
void	layout(RLayoutInfo info)	layout.
boolean	onDoubleClick(MouseEvent event, int x, int y)	onDoubleClick.
boolean	onMouseClick(MouseEvent event, int x, int y)	onMouseClick.
boolean	onMouseDisarmed(MouseEvent event)	onMouseDisarmed.
boolean	onMousePressed(MouseEvent event, int x, int y)	onMousePressed.
boolean	onMouseReleased(MouseEvent event, int x, int y)	onMouseReleased.
void	onMouseScroll()
void	paint(Graphics gIn)	paint.
boolean	paintSelection(Graphics g, boolean inSelection, RenderableSpot startPoint, RenderableSpot endPoint)	paintSelection.
void	repaint(ModelNode modelNode)	Called
boolean	scrollByUnits(int orientation, int units)	scrollByUnits.
void	scrollTo(Rectangle bounds, boolean xIfNeeded, boolean yIfNeeded)	Scrolls the viewport's origin to the given location, or as close to it as possible.
void	setSelectionEnd(RenderableSpot rpoint)	setSelectionEnd.
void	setSelectionStart(RenderableSpot rpoint)	setSelectionStart.
String	toString()
void	updateWidgetBounds(int guiX, int guiY)	updateWidgetBounds.

Methods inherited from class org.loboevolution.html.renderer.BaseElementRenderable

addComponent, addDelayedPair, applyStyle, clearDelayedPairs, clearGUIComponents, getBorderInsets, getClipBounds, getCollapsibleMarginBottom, getCollapsibleMarginTop, getDeclaredHeight, getDeclaredMaxHeight, getDeclaredMaxWidth, getDeclaredMinHeight, getDeclaredMinWidth, getDeclaredWidth, getDelayedPairs, getInnerHeight, getInnerWidth, getInsets, getInsetsMarginBorder, getInsetsPadding, getMarginBottom, getMarginLeft, getMarginRight, getMarginTop, getParentContainer, getZIndex, hasDeclaredWidth, imageUpdate, invalidateLayoutDeep, isContainedByNode, isMarginBoundary, layout, prePaint, sendDelayedPairsToParent, sendGUIComponentsToParent, setupRelativePosition, translateDescendentPoint, updateAllWidgetBounds, updateWidgetBounds

Methods inherited from class org.loboevolution.html.renderer.BaseRCollection

blur, focus, getDeclaredHeightImpl, getDeclaredWidthImpl, getRenderable, onMouseMoved, onMouseOut, onRightClick

Methods inherited from class org.loboevolution.html.renderer.BaseBoundableRenderable

contains, getBlockBackgroundColor, getBounds, getGUIPoint, getModelNode, getOrigin, getOriginalOrCurrentParent, getOriginalParent, getOriginRelativeTo, getOriginRelativeToAbs, getOriginRelativeToNoScroll, getParent, getRectangle, getRenderablePoint, getSize, getVisualBounds, invalidateLayoutUpTree, isDelegated, isValid, markLayoutValid, paintTranslated, relayout, relayoutIfValid, repaint, repaint, setOriginalParent, setParent

Methods inherited from class org.loboevolution.html.renderer.RRectangle

setBounds, setOrigin

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.loboevolution.html.renderer.BoundableRenderable

contains, getBounds, getGUIPoint, getHeight, getModelNode, getOrdinal, getOrigin, getOriginalOrCurrentParent, getOriginalParent, getOriginRelativeTo, getOriginRelativeToAbs, getOriginRelativeToNoScroll, getParent, getRectangle, getRenderablePoint, getSize, getVisualBounds, getWidth, invalidateLayoutUpTree, isDelegated, onMouseMoved, onMouseOut, onRightClick, paintTranslated, relayout, repaint, repaint, setBounds, setDelegator, setHeight, setOrdinal, setOrigin, setOriginalParent, setParent, setWidth, setX, setY

Methods inherited from interface org.loboevolution.html.renderer.RCollection

blur, focus, getRenderable

Methods inherited from interface org.loboevolution.html.renderer.RElement

getVAlign

Methods inherited from interface org.loboevolution.html.renderer.Renderable

findHtmlRenderable, isFixed

Methods inherited from interface org.loboevolution.html.renderer.RenderableContainer

focus, getGUIPoint, getOriginRelativeToAbs, getVisualBounds, invalidateLayoutUpTree, relayout, repaint

Methods inherited from interface org.loboevolution.html.node.UINode

getBounds

Field Details

bodyLayout

protected final RBlockViewport bodyLayout

defaultOverflowX

protected int defaultOverflowX

defaultOverflowY

protected int defaultOverflowY

endSelection

protected RenderableSpot endSelection

frameContext

protected final FrameContext frameContext

hasHScrollBar

protected boolean hasHScrollBar

hasVScrollBar

protected boolean hasVScrollBar

listNesting

protected final int listNesting

rendererContext

protected final HtmlRendererContext rendererContext

startSelection

protected RenderableSpot startSelection

Constructor Details

RBlock

public RBlock(RBlockInfo info)

Constructor for RBlock.

Parameters:

info - a RBlockInfo object.

Method Details

clearStyle

protected void clearStyle(boolean isRootBlock)

clearStyle.

Overrides:

clearStyle in class BaseElementRenderable

Parameters:

isRootBlock - a boolean.

doLayout

public final void doLayout(int availWidth,
 int availHeight,
 boolean sizeOnly)

doLayout.

Specified by:

doLayout in class BaseElementRenderable

Parameters:

availWidth - a Integer object.

availHeight - a Integer object.

sizeOnly - a boolean.

doLayout

public void doLayout(RLayoutInfo info)

Lays out and sets dimensions only if RBlock is invalid (or never before layed out), if the parameters passed differ from the last layout, or if the current font differs from the font for the last layout.

Parameters:

info - a RLayoutInfo object.

layout

public void layout(RLayoutInfo info)

layout.

Parameters:

info - a RLayoutInfo object.

ensureVisible

public void ensureVisible(Point point)

ensureVisible.

Parameters:

point - a Point object.

extractSelectionText

public boolean extractSelectionText(StringBuilder buffer,
 boolean inSelection,
 RenderableSpot startPoint,
 RenderableSpot endPoint)

extractSelectionText.

Specified by:

extractSelectionText in interface BoundableRenderable

Overrides:

extractSelectionText in class BaseRCollection

Parameters:

buffer - a StringBuilder object.

inSelection - a boolean.

startPoint - a RenderableSpot object.

endPoint - a RenderableSpot object.

Returns:

a boolean.

getExportableFloatingInfo

public FloatingInfo getExportableFloatingInfo()

getExportableFloatingInfo.

Returns:

a FloatingInfo object.

getFirstBaselineOffset

public int getFirstBaselineOffset()

getFirstBaselineOffset.

Returns:

a Integer object.

getFirstLineHeight

public int getFirstLineHeight()

getFirstLineHeight.

Returns:

a Integer object.

getLowestRenderableSpot

public RenderableSpot getLowestRenderableSpot(int x,
 int y)

getLowestRenderableSpot.

Parameters:

x - a Integer object.

y - a Integer object.

Returns:

a RenderableSpot object.

getPaintedBackgroundColor

public Color getPaintedBackgroundColor()

getPaintedBackgroundColor.

Returns:

a Color object.

getRBlockViewport

public RBlockViewport getRBlockViewport()

getRBlockViewport.

Returns:

a RBlockViewport object.

getRenderables

public List<Renderable> getRenderables()

getRenderables.

Returns:

a List object.

getViewportListNesting

public int getViewportListNesting(int blockNesting)

getViewportListNesting.

Parameters:

blockNesting - a Integer object.

Returns:

a Integer object.

getVScrollBarWidth

public int getVScrollBarWidth()

Gets the width the vertical scrollbar has when shown.

Returns:

a Integer object.

invalidateLayoutLocal

public void invalidateLayoutLocal()

invalidateLayoutLocal.

RBlocks should only be invalidated if one of their properties change, or if a descendent changes, or if a style property of an ancestor is such that it could produce layout changes in this RBlock.

Overrides:

invalidateLayoutLocal in class BaseElementRenderable

getX

public int getX()

getX.

Returns:

a Integer object.

getY

public int getY()

getY.

Returns:

a Integer object.

getVisualWidth

public int getVisualWidth()

getVisualWidth.

Specified by:

getVisualWidth in interface BoundableRenderable

Specified by:

getVisualWidth in interface RenderableContainer

Overrides:

getVisualWidth in class BaseBoundableRenderable

Returns:

a Integer object.

getVisualHeight

public int getVisualHeight()

getVisualHeight.

Specified by:

getVisualHeight in interface BoundableRenderable

Specified by:

getVisualHeight in interface RenderableContainer

Overrides:

getVisualHeight in class BaseBoundableRenderable

Returns:

a Integer object.

isOverflowVisibleX

public final boolean isOverflowVisibleX()

isOverflowVisibleX.

Returns:

a boolean.

isOverflowVisibleY

public final boolean isOverflowVisibleY()

isOverflowVisibleY.

Returns:

a boolean.

onDoubleClick

public boolean onDoubleClick(MouseEvent event,
 int x,
 int y)

onDoubleClick.

Specified by:

onDoubleClick in interface BoundableRenderable

Overrides:

onDoubleClick in class BaseBoundableRenderable

Parameters:

event - a MouseEvent object.

x - a Integer object.

y - a Integer object.

Returns:

a boolean.

onMouseClick

public boolean onMouseClick(MouseEvent event,
 int x,
 int y)

onMouseClick.

Specified by:

onMouseClick in interface BoundableRenderable

Overrides:

onMouseClick in class BaseBoundableRenderable

Parameters:

event - a MouseEvent object.

x - a Integer object.

y - a Integer object.

Returns:

a boolean.

onMouseDisarmed

public boolean onMouseDisarmed(MouseEvent event)

onMouseDisarmed.

Specified by:

onMouseDisarmed in interface BoundableRenderable

Overrides:

onMouseDisarmed in class BaseBoundableRenderable

Parameters:

event - a MouseEvent object.

Returns:

a boolean.

onMousePressed

public boolean onMousePressed(MouseEvent event,
 int x,
 int y)

onMousePressed.

Specified by:

onMousePressed in interface BoundableRenderable

Overrides:

onMousePressed in class BaseBoundableRenderable

Parameters:

event - a MouseEvent object.

x - a Integer object.

y - a Integer object.

Returns:

a boolean.

onMouseReleased

public boolean onMouseReleased(MouseEvent event,
 int x,
 int y)

onMouseReleased.

Specified by:

onMouseReleased in interface BoundableRenderable

Overrides:

onMouseReleased in class BaseBoundableRenderable

Parameters:

event - a MouseEvent object.

x - a Integer object.

y - a Integer object.

Returns:

a boolean.

onMouseScroll

public void onMouseScroll()

Description copied from class: BaseBoundableRenderable

Specified by:

onMouseScroll in interface BoundableRenderable

Overrides:

onMouseScroll in class BaseBoundableRenderable

paint

public void paint(Graphics gIn)

paint.

Specified by:

paint in interface Renderable

Overrides:

paint in class BaseElementRenderable

Parameters:

gIn - a Graphics object.

paintSelection

public boolean paintSelection(Graphics g,
 boolean inSelection,
 RenderableSpot startPoint,
 RenderableSpot endPoint)

paintSelection.

Specified by:

paintSelection in interface BoundableRenderable

Overrides:

paintSelection in class BaseRCollection

Parameters:

g - a Graphics object.

inSelection - a boolean.

startPoint - a RenderableSpot object.

endPoint - a RenderableSpot object.

Returns:

a boolean.

repaint

public void repaint(ModelNode modelNode)

Called

Parameters:

modelNode - a ModelNode object.

scrollByUnits

public boolean scrollByUnits(int orientation,
 int units)

scrollByUnits.

Parameters:

orientation - a Integer object.

units - a Integer object.

Returns:

a boolean.

scrollTo

public void scrollTo(Rectangle bounds,
 boolean xIfNeeded,
 boolean yIfNeeded)

Scrolls the viewport's origin to the given location, or as close to it as possible.

This method should be invoked in the GUI thread.

Parameters:

bounds - The bounds of the scrollable area that should become visible.

xIfNeeded - If this parameter is true the x coordinate is changed only if the horizontal bounds are not currently visible.

yIfNeeded - If this parameter is true the y coordinate is changed only if the vertical bounds are not currently visible.

getClipBoundsWithoutInsets

public Rectangle getClipBoundsWithoutInsets()

getClipBoundsWithoutInsets.

Specified by:

getClipBoundsWithoutInsets in interface RCollection

Overrides:

getClipBoundsWithoutInsets in class BaseRCollection

Returns:

a Rectangle object.

setSelectionEnd

public void setSelectionEnd(RenderableSpot rpoint)

setSelectionEnd.

Parameters:

rpoint - a RenderableSpot object.

setSelectionStart

public void setSelectionStart(RenderableSpot rpoint)

setSelectionStart.

Parameters:

rpoint - a RenderableSpot object.

toString

public String toString()

Overrides:

toString in class Object

updateWidgetBounds

public void updateWidgetBounds(int guiX,
 int guiY)

updateWidgetBounds.

Updates bounds of all descendent's GUI components, based on root bounds.

Specified by:

updateWidgetBounds in interface RCollection

Overrides:

updateWidgetBounds in class BaseRCollection

Parameters:

guiX - a Integer object.

guiY - a Integer object.