@TagName(value="canvas") public class CanvasElement extends Element
| Modifier and Type | Field and Description |
|---|---|
static java.lang.String |
TAG
The tag for this element.
|
DRAGGABLE_AUTO, DRAGGABLE_FALSE, DRAGGABLE_TRUEDOCUMENT_NODE, ELEMENT_NODE, TEXT_NODE| Modifier | Constructor and Description |
|---|---|
protected |
CanvasElement() |
| Modifier and Type | Method and Description |
|---|---|
Context |
getContext(java.lang.String contextId)
Gets the rendering context that may be used to draw on this canvas.
|
Context2d |
getContext2d()
Returns a 2D rendering context.
|
int |
getHeight()
Gets the height of the canvas.
|
int |
getWidth()
Gets the width of the canvas.
|
void |
setHeight(int height)
Sets the height of the canvas.
|
void |
setWidth(int width)
Sets the width of the canvas.
|
java.lang.String |
toDataUrl()
Returns a data URL for the current content of the canvas element.
|
java.lang.String |
toDataUrl(java.lang.String type)
Returns a data URL for the current content of the canvas element, with a specified type.
|
addClassName, as, as, blur, dispatchEvent, focus, getAbsoluteBottom, getAbsoluteLeft, getAbsoluteRight, getAbsoluteTop, getAttribute, getClassName, getClientHeight, getClientWidth, getDir, getDraggable, getElementsByTagName, getFirstChildElement, getId, getInnerHTML, getInnerText, getLang, getNextSiblingElement, getOffsetHeight, getOffsetLeft, getOffsetParent, getOffsetTop, getOffsetWidth, getPreviousSiblingElement, getPropertyBoolean, getPropertyDouble, getPropertyInt, getPropertyJSO, getPropertyObject, getPropertyString, getScrollHeight, getScrollLeft, getScrollTop, getScrollWidth, getString, getStyle, getTabIndex, getTagName, getTitle, hasAttribute, hasTagName, is, is, removeAttribute, removeClassName, replaceClassName, scrollIntoView, setAttribute, setClassName, setDir, setDraggable, setId, setInnerHTML, setInnerSafeHtml, setInnerText, setLang, setPropertyBoolean, setPropertyDouble, setPropertyInt, setPropertyJSO, setPropertyObject, setPropertyString, setScrollLeft, setScrollTop, setTabIndex, setTitleappendChild, cloneNode, getChild, getChildCount, getChildNodes, getFirstChild, getLastChild, getNextSibling, getNodeName, getNodeType, getNodeValue, getOwnerDocument, getParentElement, getParentNode, getPreviousSibling, hasChildNodes, hasParentElement, insertAfter, insertBefore, insertFirst, isOrHasChild, removeChild, removeFromParent, replaceChild, setNodeValuecast, createArray, createFunction, createObject, equals, hashCode, toSource, toStringpublic static final java.lang.String TAG
public final Context getContext(java.lang.String contextId)
contextId - the context id as a Stringpublic final Context2d getContext2d()
getContext(String).public final int getHeight()
setHeight(int)public final int getWidth()
setWidth(int)public final void setHeight(int height)
height - the height, in pixelsgetHeight()public final void setWidth(int width)
width - the width, in pixelsgetWidth()public final java.lang.String toDataUrl()
public final java.lang.String toDataUrl(java.lang.String type)
type - the type of the data url, e.g., image/jpeg or image/png.