Package io.github.humbleui.skija

Class PaintFilterCanvas

java.lang.Object

io.github.humbleui.skija.impl.Native

io.github.humbleui.skija.impl.Managed

io.github.humbleui.skija.Canvas

io.github.humbleui.skija.PaintFilterCanvas

All Implemented Interfaces:

java.lang.AutoCloseable

public abstract class PaintFilterCanvas
extends Canvas

A utility proxy base class for implementing draw/paint filters.

Nested Class Summary

Nested classes/interfaces inherited from class io.github.humbleui.skija.Canvas

Canvas._FinalizerHolder

Nested classes/interfaces inherited from class io.github.humbleui.skija.impl.Managed

Managed.CleanerThunk

Field Summary

Fields inherited from class io.github.humbleui.skija.Canvas

_owner

Fields inherited from class io.github.humbleui.skija.impl.Managed

_cleanable

Fields inherited from class io.github.humbleui.skija.impl.Native

_ptr

Constructor Summary

Constructors

Constructor	Description
PaintFilterCanvas(@NotNull Canvas canvas, boolean unrollDrawable)

Method Summary

Modifier and Type	Method	Description
void	_nAttachToJava(long canvasPtr)
static long	_nMake(long canvasPtr, boolean unrollDrawable)
boolean	onFilter(long paintPtr)
abstract boolean	onFilter(@NotNull Paint paint)	Called with the paint that will be used to draw the specified type.

Methods inherited from class io.github.humbleui.skija.Canvas

_nClear, _nClipPath, _nClipRect, _nClipRegion, _nClipRRect, _nConcat, _nConcat44, _nDrawArc, _nDrawColor, _nDrawColor4f, _nDrawDrawable, _nDrawDRRect, _nDrawImageNine, _nDrawImageRect, _nDrawLine, _nDrawOval, _nDrawPaint, _nDrawPatch, _nDrawPath, _nDrawPicture, _nDrawPoint, _nDrawPoints, _nDrawRect, _nDrawRegion, _nDrawRRect, _nDrawString, _nDrawTextBlob, _nDrawVertices, _nGetBaseProps, _nGetFinalizer, _nGetLocalToDevice, _nGetSaveCount, _nGetSurface, _nGetTopProps, _nMakeFromBitmap, _nQuickReject, _nQuickRejectPath, _nReadPixels, _nResetMatrix, _nRestore, _nRestoreToCount, _nSave, _nSaveLayer, _nSaveLayerAlpha, _nSaveLayerAlphaRect, _nSaveLayerRec, _nSaveLayerRecRect, _nSaveLayerRect, _nSetMatrix, _nSetMatrix44, _nWritePixels, clear, clipPath, clipPath, clipPath, clipPath, clipRect, clipRect, clipRect, clipRect, clipRegion, clipRegion, clipRRect, clipRRect, clipRRect, clipRRect, concat, concat, drawArc, drawCircle, drawColor, drawColor, drawColor, drawColor, drawDrawable, drawDrawable, drawDrawable, drawDRRect, drawImage, drawImage, drawImageNine, drawImageRect, drawImageRect, drawImageRect, drawImageRect, drawImageRect, drawImageRect, drawLine, drawLines, drawLines, drawOval, drawPaint, drawPatch, drawPatch, drawPatch, drawPath, drawPicture, drawPicture, drawPoint, drawPoints, drawPoints, drawPolygon, drawPolygon, drawRect, drawRectShadow, drawRectShadow, drawRectShadowNoclip, drawRegion, drawRRect, drawString, drawTextBlob, drawTextLine, drawTriangleFan, drawTriangleFan, drawTriangleFan, drawTriangles, drawTriangles, drawTriangles, drawTriangleStrip, drawTriangleStrip, drawTriangleStrip, getBaseProps, getLocalToDevice, getLocalToDeviceAsMatrix33, getSaveCount, getSurface, getTopProps, quickReject, quickReject, readPixels, resetMatrix, restore, restoreToCount, rotate, save, saveLayer, saveLayer, saveLayer, saveLayerAlpha, scale, setMatrix, setMatrix, skew, translate, writePixels

Methods inherited from class io.github.humbleui.skija.impl.Managed

_nInvokeFinalizer, close, isClosed

Methods inherited from class io.github.humbleui.skija.impl.Native

_nativeEquals, equals, getPtr, hashCode, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

PaintFilterCanvas

public PaintFilterCanvas(@NotNull
                         @NotNull Canvas canvas,
                         boolean unrollDrawable)

Parameters:

unrollDrawable - if needed to filter nested drawable content using this canvas (for drawables there is no paint to filter)

Method Detail

onFilter

public abstract boolean onFilter(@NotNull
                                 @NotNull Paint paint)

Called with the paint that will be used to draw the specified type. The implementation may modify the paint as they wish. The result boolean is used to determine whether the draw op is to be executed (true) or skipped (false). Note: The base implementation calls onFilter() for top-level/explicit paints only.

onFilter

public final boolean onFilter(long paintPtr)

_nAttachToJava

public void _nAttachToJava(long canvasPtr)

_nMake

public static long _nMake(long canvasPtr,
                          boolean unrollDrawable)