Package org.loboevolution.html.renderer

Class RBlockViewport

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.RBlockViewport

All Implemented Interfaces:

BoundableRenderable, RCollection, Renderable

public class RBlockViewport
extends BaseRCollection

A substantial portion of the HTML rendering logic of the package can be found in this class. This class is in charge of laying out the DOM subtree of a node, usually on behalf of an RBlock. It creates a renderer subtree consisting of RLine's or RBlock's. RLine's in turn contain RWord's and so on. This class also happens to be used as an RBlock scrollable viewport.

Field Summary

Fields

Modifier and Type	Field	Description
protected final FrameContext	frameContext
protected final HtmlRendererContext	rendererContext
static final Insets	ZERO_INSETS	Constant ZERO_INSETS

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

layoutUpTreeCanBeInvalidated, modelNode, originalParent, parent, SELECTION_COLOR, SELECTION_XOR

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

EMPTY_ARRAY

Constructor Summary

Constructors

Constructor	Description
RBlockViewport(RBlockInfo info, RenderableContainer container, RCollection parent)	Constructs an HtmlBlockLayout.

Method Summary

Modifier and Type	Method	Description
void	addLineBreak(ModelNode startNode, int breakType)	addLineBreak.
void	addRenderableToLineCheckStyle(RElement renderable, HTMLElementImpl element)	Checks property 'float' and in some cases attribute 'align'.
void	alignX(int alignXPercent, int canvasWidth, Insets paddingInsets)	Applies any horizonal aLignment.
void	alignY(int alignYPercent, int canvasHeight, Insets paddingInsets)	Applies vertical alignment.
Rectangle	getClipBounds()	getClipBounds.
FloatingInfo	getExportableFloatingInfo()	getExportableFloatingInfo.
int	getFirstBaselineOffset()	getFirstBaselineOffset.
int	getFirstLineHeight()	getFirstLineHeight.
RenderableSpot	getLowestRenderableSpot(int x, int y)	getLowestRenderableSpot.
BoundableRenderable	getRenderable(int x, int y)	getRenderable.
BoundableRenderable	getRenderable(Point point)	getRenderable.
List<Renderable>	getRenderables()	getRenderables.
List<Renderable>	getRenderables(int pointx, int pointy)	getRenderables.
int	getVisualHeight()	getVisualHeight.
int	getVisualWidth()	getVisualWidth.
void	invalidateLayoutLocal()	invalidateLayoutLocal.
boolean	isContainedByNode()	isContainedByNode.
void	layout(int desiredWidth, int desiredHeight, Insets paddingInsets, int yLimit, FloatingBounds floatBounds, boolean sizeOnly)	Builds the layout/renderer tree from scratch.
void	layoutChildFlex(HTMLElementImpl markupElement)	layoutChildFlex.
final void	layoutList(HTMLElementImpl markupElement)	layoutList.
final void	layoutListItem(HTMLElementImpl markupElement)	layoutListItem.
void	layoutMarkup(NodeImpl node)	layoutMarkup.
final void	layoutRBlock(HTMLElementImpl markupElement)	layoutRBlock.
void	layoutRFlex(HTMLElementImpl markupElement)	layoutRFlex.
void	layoutRInlineBlock(HTMLElementImpl markupElement)	layoutRInlineBlock.
final void	layoutRTable(HTMLElementImpl markupElement)	layoutRTable.
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	paint(Graphics gIn)	paint.
void	positionDelayed()	positionDelayed.
final void	positionRElement(Element markupElement, RElement renderable, boolean usesAlignAttribute, boolean obeysFloats, boolean alignCenterAttribute)	positionRElement.
String	toString()

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

blur, extractSelectionText, focus, getClipBoundsWithoutInsets, getDeclaredHeightImpl, getDeclaredWidthImpl, invalidateLayoutDeep, onMouseMoved, onMouseOut, onRightClick, paintSelection, updateWidgetBounds

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, onMouseScroll, 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, getX, getY, getZIndex, invalidateLayoutUpTree, isDelegated, onMouseScroll, paintTranslated, relayout, repaint, repaint, setBounds, setDelegator, setHeight, setOrdinal, setOrigin, setOriginalParent, setParent, setWidth, setX, setY

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

findHtmlRenderable, isFixed

Field Details

rendererContext

protected final HtmlRendererContext rendererContext

frameContext

protected final FrameContext frameContext

ZERO_INSETS

public static final Insets ZERO_INSETS

Constant ZERO_INSETS

Constructor Details

RBlockViewport

public RBlockViewport(RBlockInfo info,
 RenderableContainer container,
 RCollection parent)

Constructs an HtmlBlockLayout.

Parameters:

info - a RBlockInfo object.

Method Details

addLineBreak

public void addLineBreak(ModelNode startNode,
 int breakType)

addLineBreak.

Parameters:

startNode - a ModelNode object.

breakType - a Integer object.

addRenderableToLineCheckStyle

public void addRenderableToLineCheckStyle(RElement renderable,
 HTMLElementImpl element)

Checks property 'float' and in some cases attribute 'align'.

Parameters:

renderable - a RElement object.

element - a HTMLElementImpl object.

alignX

public void alignX(int alignXPercent,
 int canvasWidth,
 Insets paddingInsets)

Applies any horizonal aLignment. It may adjust height if necessary.

Parameters:

alignXPercent - a Integer object.

canvasWidth - The new width of the viewport. It could be different to the previously calculated width.

paddingInsets - a Insets object.

alignY

public void alignY(int alignYPercent,
 int canvasHeight,
 Insets paddingInsets)

Applies vertical alignment.

Parameters:

alignYPercent - a Integer object.

canvasHeight - a Integer object.

paddingInsets - a Insets object.

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.

getRenderable

public BoundableRenderable getRenderable(int x,
 int y)

getRenderable.

Specified by:

getRenderable in interface RCollection

Overrides:

getRenderable in class BaseRCollection

Parameters:

x - a Integer object.

y - a Integer object.

Returns:

a BoundableRenderable object.

getRenderable

public BoundableRenderable getRenderable(Point point)

getRenderable.

Parameters:

point - a Point object.

Returns:

a BoundableRenderable object.

getRenderables

public List<Renderable> getRenderables()

getRenderables.

Returns:

a List object.

getRenderables

public List<Renderable> getRenderables(int pointx,
 int pointy)

getRenderables.

Parameters:

pointx - a Integer object.

pointy - a Integer object.

Returns:

a List object.

invalidateLayoutLocal

public void invalidateLayoutLocal()

invalidateLayoutLocal.

Specified by:

invalidateLayoutLocal in class BaseBoundableRenderable

isContainedByNode

public boolean isContainedByNode()

isContainedByNode.

Returns:

a boolean.

layout

public void layout(int desiredWidth,
 int desiredHeight,
 Insets paddingInsets,
 int yLimit,
 FloatingBounds floatBounds,
 boolean sizeOnly)

Builds the layout/renderer tree from scratch. Note: Returned dimension needs to be actual size needed for rendered content, not the available container size. This is relied upon by table layout.

Parameters:

desiredWidth - a Integer object.

desiredHeight - a Integer object.

paddingInsets - a Insets object.

yLimit - If other than -1, layout will throw SizeExceededException in the event that the layout goes beyond this y-coordinate point.

floatBounds - a FloatingBounds object.

sizeOnly - a boolean.

layoutList

public final void layoutList(HTMLElementImpl markupElement)

layoutList.

Parameters:

markupElement - a HTMLElementImpl object.

layoutListItem

public final void layoutListItem(HTMLElementImpl markupElement)

layoutListItem.

Parameters:

markupElement - a HTMLElementImpl object.

layoutMarkup

public void layoutMarkup(NodeImpl node)

layoutMarkup.

Parameters:

node - a NodeImpl object.

layoutRBlock

public final void layoutRBlock(HTMLElementImpl markupElement)

layoutRBlock.

Parameters:

markupElement - a HTMLElementImpl object.

layoutRTable

public final void layoutRTable(HTMLElementImpl markupElement)

layoutRTable.

Parameters:

markupElement - a HTMLElementImpl object.

layoutRInlineBlock

public void layoutRInlineBlock(HTMLElementImpl markupElement)

layoutRInlineBlock.

Parameters:

markupElement - a HTMLElementImpl object.

layoutRFlex

public void layoutRFlex(HTMLElementImpl markupElement)

layoutRFlex.

Parameters:

markupElement - a HTMLElementImpl object.

layoutChildFlex

public void layoutChildFlex(HTMLElementImpl markupElement)

layoutChildFlex.

Parameters:

markupElement - a HTMLElementImpl object.

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.

paint

public void paint(Graphics gIn)

paint.

Parameters:

gIn - a Graphics object.

positionRElement

public final void positionRElement(Element markupElement,
 RElement renderable,
 boolean usesAlignAttribute,
 boolean obeysFloats,
 boolean alignCenterAttribute)

positionRElement.

Parameters:

markupElement - a Element object.

renderable - a RElement object.

usesAlignAttribute - a boolean.

obeysFloats - a boolean.

alignCenterAttribute - a boolean.

toString

public String toString()

Overrides:

toString in class Object

getClipBounds

public Rectangle getClipBounds()

getClipBounds.

Returns:

a Rectangle object.

getVisualHeight

public int getVisualHeight()

getVisualHeight.

Specified by:

getVisualHeight in interface BoundableRenderable

Overrides:

getVisualHeight in class BaseBoundableRenderable

Returns:

a Integer object.

getVisualWidth

public int getVisualWidth()

getVisualWidth.

Specified by:

getVisualWidth in interface BoundableRenderable

Overrides:

getVisualWidth in class BaseBoundableRenderable

Returns:

a Integer object.

positionDelayed

public void positionDelayed()

positionDelayed.