Package javafx.scene.canvas
Class Canvas
java.lang.Object
javafx.scene.Node
javafx.scene.canvas.Canvas
- All Implemented Interfaces:
LayoutMeasurable
,LayoutMeasurableMixin
,HasBlendModeProperty
,HasClipProperty
,HasEffectProperty
,HasLayoutXProperty
,HasLayoutYProperty
,HasManagedProperty
,HasMouseTransparentProperty
,HasOnMouseClickedProperty
,HasOpacityProperty
,HasParentProperty
,HasVisibleProperty
,Styleable
,EventTarget
,INode
Canvas
is an image that can be drawn on using a set of graphics
commands provided by a GraphicsContext
.
A Canvas
node is constructed with a width and height that specifies the size
of the image into which the canvas drawing commands are rendered. All drawing
operations are clipped to the bounds of that image.
Example:
import javafx.scene.*; import javafx.scene.paint.*; import javafx.scene.canvas.*; Group root = new Group(); Scene s = new Scene(root, 300, 300, Color.BLACK); final Canvas canvas = new Canvas(250,250); GraphicsContext gc = canvas.getGraphicsContext2D(); gc.setFill(Color.BLUE); gc.fillRect(75,75,100,100); root.getChildren().add(canvas);
- Since:
- JavaFX 2.2
- See Also:
-
Property Summary
PropertiesTypePropertyDescriptionfinal DoubleProperty
Defines the height of the canvas.final DoubleProperty
Defines the width of the canvas.Properties inherited from class javafx.scene.Node
blendMode, cacheHint, cache, clip, cursor, disabled, disable, effect, eventDispatcher, focused, focusTraversable, hover, id, layoutBounds, layoutX, layoutY, managed, mouseTransparent, onContextMenuRequested, onDragDetected, onDragDone, onDragDropped, onDragEntered, onDragExited, onDragOver, onKeyPressed, onKeyReleased, onKeyTyped, onMouseClicked, onMouseDragged, onMouseEntered, onMouseExited, onMouseMoved, onMousePressed, onMouseReleased, onScroll, onSwipeDown, onSwipeLeft, onSwipeRight, onSwipeUp, onTouchMoved, onTouchPressed, onTouchReleased, onTouchStationary, opacity, parent, pressed, rotate, scaleX, scaleY, scaleZ, scene, style, translateX, translateY, visible
-
Field Summary
FieldsFields inherited from interface javafx.scene.INode
BASELINE_OFFSET_SAME_AS_HEIGHT
-
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionreturns theGraphicsContext
associated with thisCanvas
.final double
Gets the value of theheight
property.final double
getWidth()
Gets the value of thewidth
property.final DoubleProperty
Defines the height of the canvas.impl_computeGeomBounds
(BaseBounds bounds, BaseTransform tx) Computes the geometric bounds for this Node.final void
setHeight
(double value) Sets the value of theheight
property.final void
setWidth
(double value) Sets the value of thewidth
property.final DoubleProperty
Defines the width of the canvas.Methods inherited from class javafx.scene.Node
addEventFilter, addEventHandler, autosize, blendModeProperty, buildEventDispatchChain, cacheHintProperty, cacheProperty, clipProperty, createLayoutMeasurable, cursorProperty, disabledProperty, disableProperty, effectProperty, eventDispatcherProperty, fireEvent, focusedProperty, focusTraversableProperty, getAllNodeTransforms, getBoundsInLocal, getCacheHint, getCursor, getEventDispatcher, getId, getLayoutMeasurable, getNodePeer, getOnContextMenuRequested, getOnDragDetected, getOnDragDone, getOnDragDropped, getOnDragEntered, getOnDragExited, getOnDragOver, getOnKeyPressed, getOnKeyReleased, getOnKeyTyped, getOnMouseDragged, getOnMouseEntered, getOnMouseExited, getOnMouseMoved, getOnMousePressed, getOnMouseReleased, getOnScroll, getOnSwipeDown, getOnSwipeLeft, getOnSwipeRight, getOnSwipeUp, getOnTouchMoved, getOnTouchPressed, getOnTouchReleased, getOnTouchStationary, getOrCreateAndBindNodePeer, getProperties, getRotate, getScaleX, getScaleY, getScaleZ, getScene, getStyle, getStyleClass, getTransforms, getTranslateX, getTranslateY, getUserData, hasProperties, hoverProperty, idProperty, impl_computeLayoutBounds, impl_getLayoutBounds, impl_isTreeVisible, impl_maxHeight, impl_maxWidth, impl_minHeight, impl_minWidth, impl_prefHeight, impl_prefWidth, impl_traverse, isCache, isDisable, isDisabled, isFocused, isFocusTraversable, isHover, isPressed, layoutBoundsProperty, layoutXProperty, layoutYProperty, localToParent, localToParent, localToParent, localToScene, localToScene, localToScreen, localToScreen, localToScreen, localToScreen, managedProperty, mouseTransparentProperty, onContextMenuRequestedProperty, onDragDetectedProperty, onDragDoneProperty, onDragDroppedProperty, onDragEnteredProperty, onDragExitedProperty, onDragOverProperty, onKeyPressedProperty, onKeyReleasedProperty, onKeyTypedProperty, onMouseClickedProperty, onMouseDraggedProperty, onMouseEnteredProperty, onMouseExitedProperty, onMouseMovedProperty, onMousePressedProperty, onMouseReleasedProperty, onNodePeerReady, onPeerSizeChanged, onScrollProperty, onSwipeDownProperty, onSwipeLeftProperty, onSwipeRightProperty, onSwipeUpProperty, onTouchMovedProperty, onTouchPressedProperty, onTouchReleasedProperty, onTouchStationaryProperty, opacityProperty, parentProperty, parentToLocal, pressedProperty, removeEventFilter, removeEventHandler, requestFocus, requestPeerFocus, rotateProperty, scaleXProperty, scaleYProperty, scaleZProperty, sceneProperty, sceneToLocal, sceneToLocal, sceneToLocal, setCache, setCacheHint, setCursor, setDisable, setDisabled, setEventDispatcher, setEventHandler, setFocused, setFocusTraversable, setHover, setId, setNodePeer, setOnContextMenuRequested, setOnDragDetected, setOnDragDone, setOnDragDropped, setOnDragEntered, setOnDragExited, setOnDragOver, setOnKeyPressed, setOnKeyReleased, setOnKeyTyped, setOnMouseDragged, setOnMouseEntered, setOnMouseExited, setOnMouseMoved, setOnMousePressed, setOnMouseReleased, setOnScroll, setOnSwipeDown, setOnSwipeLeft, setOnSwipeRight, setOnSwipeUp, setOnTouchMoved, setOnTouchPressed, setOnTouchReleased, setOnTouchStationary, setPressed, setRotate, setScaleX, setScaleY, setScaleZ, setScene, setStyle, setTranslateX, setTranslateY, setUserData, shouldUseLayoutMeasurable, snapshot, startDragAndDrop, styleProperty, toBack, toFront, translateXProperty, translateYProperty, visibleProperty
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
Methods inherited from interface dev.webfx.kit.mapper.peers.javafxgraphics.markers.HasBlendModeProperty
getBlendMode, setBlendMode
Methods inherited from interface dev.webfx.kit.mapper.peers.javafxgraphics.markers.HasClipProperty
getClip, setClip
Methods inherited from interface dev.webfx.kit.mapper.peers.javafxgraphics.markers.HasEffectProperty
getEffect, setEffect
Methods inherited from interface dev.webfx.kit.mapper.peers.javafxgraphics.markers.HasLayoutXProperty
getLayoutX, setLayoutX
Methods inherited from interface dev.webfx.kit.mapper.peers.javafxgraphics.markers.HasLayoutYProperty
getLayoutY, setLayoutY
Methods inherited from interface dev.webfx.kit.mapper.peers.javafxgraphics.markers.HasManagedProperty
isManaged, setManaged
Methods inherited from interface dev.webfx.kit.mapper.peers.javafxgraphics.markers.HasMouseTransparentProperty
isMouseTransparent, setMouseTransparent
Methods inherited from interface dev.webfx.kit.mapper.peers.javafxgraphics.markers.HasOnMouseClickedProperty
getOnMouseClicked, setOnMouseClicked
Methods inherited from interface dev.webfx.kit.mapper.peers.javafxgraphics.markers.HasOpacityProperty
getOpacity, setOpacity
Methods inherited from interface dev.webfx.kit.mapper.peers.javafxgraphics.markers.HasParentProperty
getParent, setParent
Methods inherited from interface dev.webfx.kit.mapper.peers.javafxgraphics.markers.HasVisibleProperty
isVisible, setVisible
Methods inherited from interface javafx.scene.INode
getBaselineOffset, getContentBias, isResizable, relocate, resize, resizeRelocate
Methods inherited from interface dev.webfx.kit.mapper.peers.javafxgraphics.emul_coupling.LayoutMeasurableMixin
clearCache, getLayoutBounds, maxHeight, maxWidth, minHeight, minWidth, prefHeight, prefWidth
-
Property Details
-
width
Defines the width of the canvas.- Default value:
- 0.0
- See Also:
-
height
Defines the height of the canvas.- Default value:
- 0.0
- See Also:
-
-
Field Details
-
theContext
-
-
Constructor Details
-
Canvas
public Canvas()Creates an empty instance of Canvas. -
Canvas
public Canvas(double width, double height) Creates a new instance of Canvas with the given size.- Parameters:
width
- width of the canvasheight
- height of the canvas
-
-
Method Details
-
getGraphicsContext2D
returns theGraphicsContext
associated with thisCanvas
.- Returns:
- the
GraphicsContext
associated with thisCanvas
-
setWidth
public final void setWidth(double value) Sets the value of thewidth
property.- Property description:
- Defines the width of the canvas.
- Default value:
- 0.0
- Parameters:
value
- the value for thewidth
property- See Also:
-
getWidth
public final double getWidth()Gets the value of thewidth
property.- Property description:
- Defines the width of the canvas.
- Default value:
- 0.0
- Returns:
- the value of the
width
property - See Also:
-
widthProperty
Defines the width of the canvas.- Default value:
- 0.0
- Returns:
- the
width
property - See Also:
-
setHeight
public final void setHeight(double value) Sets the value of theheight
property.- Property description:
- Defines the height of the canvas.
- Default value:
- 0.0
- Parameters:
value
- the value for theheight
property- See Also:
-
getHeight
public final double getHeight()Gets the value of theheight
property.- Property description:
- Defines the height of the canvas.
- Default value:
- 0.0
- Returns:
- the value of the
height
property - See Also:
-
heightProperty
Defines the height of the canvas.- Default value:
- 0.0
- Returns:
- the
height
property - See Also:
-
impl_computeGeomBounds
Description copied from class:Node
Computes the geometric bounds for this Node. This method is abstract and must be implemented by each Node subclass.- Specified by:
impl_computeGeomBounds
in classNode
-