PDFCanvas

java.lang.Object
- android.graphics.Canvas
- - gnu.apdf.PDFCanvas

```
public class PDFCanvas
extends Canvas
```
The PDFCanvas class holds the "draw" calls. To draw something, you use the standard Android Canvas drawing calls (including drawing, transformations, clips, etc.) The PDFCanvas will encode these as PDF commands.
The PDFCanvas is associated with a PDFPage, which is part of a PDFDocument. The basic workflow is:
// Create a PDF document, a page in the document, and get that page's PDFCanvas PDFDocument pdfDoc = new PDFDocument(); PDFPage page = new PDFPage(PageFormat.LETTER); pdfDoc.add(page); PDFCanvas pdfCanvas = page.getCanvas(); // do drawing commands as on any other Canvas drawDesign(pdfCanvas); // write the PDF content for the page to a file BufferedOutputStream fileStream = new BufferedOutputStream(new FileOutputStream(file)); pdfDoc.write(outStream); fileStream.flush(); fileStream.close();
Note: Certain methods are unimplemented due to lack of support in PDF; these will throw an UnsupportedOperationException if used. Some additional features currently have no or limited support, as indicated below.

Supported operations:
- Drawing operations, including
- Image drawing through drawBitmap
- Grid and 3D drawing through drawBitmapMesh and drawVertices
- Text operations drawText, drawPosText, drawTextOnPath
- Clipping through clipRect
- Matrix transformation operations including scale, skew, translate, rotate and concat
- State save and restore
Not supported:
- Dotted lines
- Underlined and strikethrough text
- quickReject() methods (always return false)
- drawTextRun method (throws UnsupportedOperationException)
- clipPath method (throws UnsupportedOperationException)
- clipRect method with operation other than intersect (throws UnsupportedOperationException)
- clipRegion method (throws UnsupportedOperationException)
- drawPath method (throws UnsupportedOperationException)
- drawPicture method (throws UnsupportedOperationException)
- drawPatch method (throws UnsupportedOperationException)
- Paint xfermodes
- State-save flags and layer information are ignored; save(flags), saveLayer, and saveLayerAlpha all behave the same as plain save()
Author:

Jon Sevy, jsevy@cs.drexel.edu

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

static class PDFCanvas.EdgeType
- Nested classes/interfaces inherited from class android.graphics.Canvas
  Canvas.VertexMode

Nested Classes
Modifier and Type	Class and Description
`static class`	`PDFCanvas.EdgeType`

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`DIRECTION_LTR` Flag for drawTextRun indicating left-to-right run direction.
`static int`	`DIRECTION_RTL` Flag for drawTextRun indicating right-to-left run direction.
`static int`	`PDF_STROKE_CAP_BUTT` Constants for stroke cap operators
`static int`	`PDF_STROKE_CAP_PROJECTING_SQUARE`
`static int`	`PDF_STROKE_CAP_ROUND`
`static int`	`PDF_STROKE_JOIN_BEVEL`
`static int`	`PDF_STROKE_JOIN_MITER` Constants for stroke join operators
`static int`	`PDF_STROKE_JOIN_ROUND`

Fields inherited from class android.graphics.Canvas
ALL_SAVE_FLAG, CLIP_SAVE_FLAG, CLIP_TO_LAYER_SAVE_FLAG, FULL_COLOR_LAYER_SAVE_FLAG, HAS_ALPHA_LAYER_SAVE_FLAG, MATRIX_SAVE_FLAG

Constructor Summary

Constructors
Constructor and Description
`PDFCanvas(Bitmap bitmap)` Not supported; throws UnsupportedOperationException
`PDFCanvas(PDFPage page)` Construct a canvas for the specified page size

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`clipPath(Path path)` Intersect the current clip with the specified path.
`boolean`	`clipPath(Path path, Region.Op op)` Not supported; throws UnsupportedOperationException if called.
`boolean`	`clipRect(float left, float top, float right, float bottom)` Intersect the current clip with the specified rectangle, which is expressed in local coordinates.
`boolean`	`clipRect(float left, float top, float right, float bottom, Region.Op op)` Modify the current clip with the specified rectangle, which is expressed in local coordinates.
`boolean`	`clipRect(int left, int top, int right, int bottom)` Intersect the current clip with the specified rectangle, which is expressed in local coordinates.
`boolean`	`clipRect(Rect rect)` Intersect the current clip with the specified rectangle, which is expressed in local coordinates.
`boolean`	`clipRect(RectF rect)` Intersect the current clip with the specified rectangle, which is expressed in local coordinates.
`boolean`	`clipRect(RectF rect, Region.Op op)` Modify the current clip with the specified rectangle.
`boolean`	`clipRect(Rect rect, Region.Op op)` Modify the current clip with the specified rectangle.
`boolean`	`clipRegion(Region region)` Not supported; throws UnsupportedOperationException if called.
`boolean`	`clipRegion(Region region, Region.Op op)` Not supported; throws UnsupportedOperationException if called.
`void`	`concat(Matrix matrix)` Preconcat the current matrix with the specified matrix.
`void`	`drawArc(RectF oval, float startAngle, float sweepAngle, boolean useCenter, Paint paint)` Draw the specified arc, which will be scaled to fit inside the specified oval.
`void`	`drawARGB(int a, int r, int g, int b)` Fill the entire page (restricted to the current clip) with the specified ARGB color.
`void`	`drawBitmap(Bitmap bitmap, float left, float top, Paint paint)` Draw the specified bitmap, with its top/left corner at (x,y), using the specified paint, transformed by the current matrix.
`void`	`drawBitmap(Bitmap bitmap, Matrix transformMatrix, Paint paint)` Draw the bitmap using the specified matrix.
`void`	`drawBitmap(Bitmap bitmap, Rect src, RectF dst, Paint paint)` Draw the specified bitmap, scaling/translating automatically to fill the destination rectangle.
`void`	`drawBitmap(Bitmap bitmap, Rect src, Rect dst, Paint paint)` Draw the specified bitmap, scaling/translating automatically to fill the destination rectangle.
`void`	`drawBitmap(int[] colors, int offset, int stride, float x, float y, int width, int height, boolean hasAlpha, Paint paint)` Treat the specified array of colors as a bitmap, and draw it.
`void`	`drawBitmap(int[] colors, int offset, int stride, int x, int y, int width, int height, boolean hasAlpha, Paint paint)` Legacy version of drawBitmap(int[] colors, ...) that took ints for x,y
`void`	`drawBitmapMesh(Bitmap bitmap, int meshWidth, int meshHeight, float[] verts, int vertOffset, int[] colors, int colorOffset, Paint paint)` Draw the bitmap through the mesh, where mesh vertices are evenly distributed across the bitmap.
`void`	`drawCircle(float cx, float cy, float radius, Paint paint)` Draw the specified circle using the specified paint.
`void`	`drawColor(int color)` Fill the entire page (restricted to the current clip) with the specified color.
`void`	`drawColor(int color, PorterDuff.Mode mode)` Fill the entire page (restricted to the current clip) with the specified color and porter-duff xfermode.
`void`	`drawLine(float startX, float startY, float stopX, float stopY, Paint paint)` Draw a line segment with the specified start and stop x,y coordinates, using the specified paint.
`void`	`drawLines(float[] pts, int offset, int count, Paint paint)` Draw a series of lines.
`void`	`drawLines(float[] pts, Paint paint)` Helper method for drawLines for the common case where all points are to be used.
`void`	`drawOval(RectF oval, Paint paint)` Draw the specified oval using the specified paint.
`void`	`drawPaint(Paint paint)` Fill the entire page (restricted to the current clip) with the specified paint.
`void`	`drawPatch(Bitmap bitmap, byte[] chunks, RectF dst, Paint paint)` Not supported; throws UnsupportedOperationException if called.
`void`	`drawPath(Path path, Paint paint)` Not supported; throws UnsupportedOperationException if called.
`void`	`drawPicture(Picture picture)` Currently unsupported; throws UnsupportedOperationException if called.
`void`	`drawPicture(Picture picture, Rect dst)` Currently unsupported; throws UnsupportedOperationException if called.
`void`	`drawPicture(Picture picture, RectF dst)` Currently unsupported; throws UnsupportedOperationException if called.
`void`	`drawPoint(float x, float y, Paint paint)` Helper for drawPoints() for drawing a single point.
`void`	`drawPoints(float[] pts, int offset, int count, Paint paint)` Draw a series of points.
`void`	`drawPoints(float[] pts, Paint paint)` Helper for drawPoints() that assumes you want to draw the entire array
`void`	`drawPosText(char[] text, int index, int count, float[] pos, Paint paint)` Draw the text in the array, with each character's origin specified by the pos array, using the typeface and size in the specified Paint.
`void`	`drawPosText(String text, float[] pos, Paint paint)` Draw the text in the array, with each character's origin specified by the pos array, using the typeface and size in the specified Paint.
`void`	`drawRect(float left, float top, float right, float bottom, Paint paint)` Draw the specified Rect using the specified paint.
`void`	`drawRect(RectF r, Paint paint)` Draw the specified Rect using the specified paint.
`void`	`drawRect(Rect r, Paint paint)` Draw the specified Rect using the specified Paint.
`void`	`drawRGB(int r, int g, int b)` Fill the entire page (restricted to the current clip) with the specified RGB color.
`void`	`drawRoundRect(RectF rect, float rx, float ry, Paint paint)` Draw the specified round-rect using the specified paint.
`void`	`drawText(char[] text, int index, int count, float x, float y, Paint paint)` Draw the text, with origin at (x,y), using the typeface and size in the specified paint.
`void`	`drawText(CharSequence text, int start, int end, float x, float y, Paint paint)` Draw the specified range of text, specified by start/end, with its origin at (x,y), using the typeface and size in the specified paint.
`void`	`drawText(String text, float x, float y, Paint paint)` Draw the text, with origin at (x,y), using the typeface and size in the specified paint.
`void`	`drawText(String text, int start, int end, float x, float y, Paint paint)` Draw the text, with origin at (x,y), using the typeface and size in the specified paint.
`void`	`drawTextOnPath(char[] text, int index, int count, Path path, float hOffset, float vOffset, Paint paint)` Draw the text, with origin at (x,y), along the specified path, using the typeface and size in the specified Paint.
`void`	`drawTextOnPath(String text, Path path, float hOffset, float vOffset, Paint paint)` Draw the text, with origin at (x,y), along the specified path, using the typeface and size in the specified Paint.
`void`	`drawTextRun(char[] text, int index, int count, int contextIndex, int contextCount, float x, float y, int dir, Paint paint)` Currently unsupported; throws UnsupportedOperationException if called.
`void`	`drawTextRun(CharSequence text, int start, int end, int contextStart, int contextEnd, float x, float y, int dir, Paint paint)` Currently unsupported; throws UnsupportedOperationException if called.
`void`	`drawVertices(Canvas.VertexMode mode, int vertexCount, float[] verts, int vertOffset, float[] texs, int texOffset, int[] colors, int colorOffset, short[] indices, int indexOffset, int indexCount, Paint paint)` Draw the array of vertices, interpreted as triangles (based on mode).
`boolean`	`getClipBounds(Rect bounds)` Retrieve the clip bounds, returning true if they are non-empty.
`int`	`getDensity()` Returns the target density of the canvas.
`DrawFilter`	`getDrawFilter()` Not supported; throws UnsupportedOperationException if called.
`int`	`getHeight()` Returns the imageable height of the current page
`void`	`getMatrix(Matrix ctm)` Return, in ctm, the current transformation matrix.
`int`	`getMaximumBitmapHeight()` Returns the maximum allowed height for bitmaps drawn with this canvas.
`int`	`getMaximumBitmapWidth()` Returns the maximum allowed width for bitmaps drawn with this canvas.
`int`	`getSaveCount()` Returns the number of matrix/clip states on the Canvas' private stack.
`int`	`getWidth()` Returns the imageable width of the current page
`boolean`	`isHardwareAccelerated()` Indicates whether this Canvas uses hardware acceleration - PDFCanvas does not.
`boolean`	`isOpaque()` Return true if the device that the current layer draws into is opaque (i.e.
`boolean`	`quickReject(float left, float top, float right, float bottom, PDFCanvas.EdgeType type)` Not supported, so always returns false.
`boolean`	`quickReject(Path path, PDFCanvas.EdgeType type)` Not supported, so always returns false.
`boolean`	`quickReject(RectF rect, PDFCanvas.EdgeType type)` Not supported, so always returns false.
`void`	`restore()` This call balances a previous call to save(), and is used to remove all modifications to the matrix/clip state since the last save call.
`void`	`restoreToCount(int saveCount)` Efficient way to pop any calls to save() that happened after the save count reached saveCount.
`void`	`rotate(float degrees)` Preconcat the current matrix with the specified rotation.
`int`	`save()` Saves the current matrix and clip onto a private stack.
`int`	`save(int saveFlags)` Based on saveFlags, can save the current matrix and clip onto a private stack.
`int`	`saveLayer(float left, float top, float right, float bottom, Paint paint, int saveFlags)` This behaves the same as save(), and all arguments are ignored.
`int`	`saveLayer(RectF bounds, Paint paint, int saveFlags)` This behaves the same as save(), and all arguments are ignored.
`int`	`saveLayerAlpha(float left, float top, float right, float bottom, int alpha, int saveFlags)` This behaves the same as save(), and all arguments are ignored.
`int`	`saveLayerAlpha(RectF bounds, int alpha, int saveFlags)` This behaves the same as save(), and all arguments are ignored.
`void`	`scale(float sx, float sy)` Preconcat the current matrix with the specified scale.
`void`	`setBitmap(Bitmap bitmap)` Not supported; throws UnsupportedOperationException
`void`	`setDensity(int density)` Specifies the density for this Canvas' backing bitmap.
`void`	`setDrawFilter(DrawFilter filter)` Not supported; throws UnsupportedOperationException if called.
`void`	`setMatrix(Matrix matrix)` Completely replace the current matrix with the specified matrix.
`void`	`setScreenDensity(int density)` Not supported; ignored.
`void`	`setViewport(int width, int height)` Set the viewport dimensions if this canvas is GL based.
`void`	`skew(float sx, float sy)` Preconcat the current matrix with the specified skew.
`void`	`translate(float dx, float dy)` Preconcat the current matrix with the specified translation

Methods inherited from class android.graphics.Canvas
getClipBounds, getMatrix, quickReject, quickReject, quickReject, rotate, scale

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - PDF_STROKE_CAP_BUTT
```
public static final int PDF_STROKE_CAP_BUTT
```
    Constants for stroke cap operators
    
    See Also:
    
    Constant Field Values
  - PDF_STROKE_CAP_ROUND
```
public static final int PDF_STROKE_CAP_ROUND
```
    See Also:
    
    Constant Field Values
  - PDF_STROKE_CAP_PROJECTING_SQUARE
```
public static final int PDF_STROKE_CAP_PROJECTING_SQUARE
```
    See Also:
    
    Constant Field Values
  - PDF_STROKE_JOIN_MITER
```
public static final int PDF_STROKE_JOIN_MITER
```
    Constants for stroke join operators
    
    See Also:
    
    Constant Field Values
  - PDF_STROKE_JOIN_ROUND
```
public static final int PDF_STROKE_JOIN_ROUND
```
    See Also:
    
    Constant Field Values
  - PDF_STROKE_JOIN_BEVEL
```
public static final int PDF_STROKE_JOIN_BEVEL
```
    See Also:
    
    Constant Field Values
  - DIRECTION_LTR
```
public static final int DIRECTION_LTR
```
    Flag for drawTextRun indicating left-to-right run direction.
    
    See Also:
    
    Constant Field Values
  - DIRECTION_RTL
```
public static final int DIRECTION_RTL
```
    Flag for drawTextRun indicating right-to-left run direction.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - PDFCanvas
```
public PDFCanvas(PDFPage page)
```
    Construct a canvas for the specified page size
    
    Parameters:
    
    page -
  - PDFCanvas
```
public PDFCanvas(Bitmap bitmap)
```
    Not supported; throws UnsupportedOperationException
- Method Detail
  - isHardwareAccelerated
```
public boolean isHardwareAccelerated()
```
    Indicates whether this Canvas uses hardware acceleration - PDFCanvas does not.
    
    Overrides:
    
    isHardwareAccelerated in class Canvas
    
    Returns:
    
    Always false
  - setBitmap
```
public void setBitmap(Bitmap bitmap)
```
    Not supported; throws UnsupportedOperationException
    
    Overrides:
    
    setBitmap in class Canvas
  - setViewport
```
public void setViewport(int width,
                        int height)
```
    Set the viewport dimensions if this canvas is GL based. If it is not, this method is ignored and no exception is thrown. Since PDFCanvas is no GL-based, does nothing.
    
    Parameters:
    
    width - The width of the viewport
    
    height - The height of the viewport
  - isOpaque
```
public boolean isOpaque()
```
    Return true if the device that the current layer draws into is opaque (i.e. does not support per-pixel alpha). PDFCanvas only supports opaques layers, so always returns true.
    
    Overrides:
    
    isOpaque in class Canvas
    
    Returns:
    
    Always returns true
  - getWidth
```
public int getWidth()
```
    Returns the imageable width of the current page
    
    Overrides:
    
    getWidth in class Canvas
    
    Returns:
    
    the imageable width of the current page
  - getHeight
```
public int getHeight()
```
    Returns the imageable height of the current page
    
    Overrides:
    
    getHeight in class Canvas
    
    Returns:
    
    the imageable height of the current page
  - getDensity
```
public int getDensity()
```
    Returns the target density of the canvas.
    
    Overrides:
    
    getDensity in class Canvas
    
    Returns:
    
    Returns the current target density of the canvas, which is used to determine the scaling factor when drawing a bitmap into it.
    
    See Also:
    
    setDensity(int), Bitmap.getDensity()
  - setDensity
```
public void setDensity(int density)
```
    Specifies the density for this Canvas' backing bitmap. This modifies the target density of the canvas itself, as well as the density of its backing bitmap via Bitmap.setDensity(int).
    
    Overrides:
    
    setDensity in class Canvas
    
    Parameters:
    
    density - The new target density of the canvas, which is used to determine the scaling factor when drawing a bitmap into it. Use Bitmap.DENSITY_NONE to disable bitmap scaling.
    
    See Also:
    
    getDensity(), Bitmap.setDensity(int)
  - setScreenDensity
```
public void setScreenDensity(int density)
```
    Not supported; ignored.
    
    Parameters:
    
    density -
  - getMaximumBitmapWidth
```
public int getMaximumBitmapWidth()
```
    Returns the maximum allowed width for bitmaps drawn with this canvas. Attempting to draw with a bitmap wider than this value will result in an error.
    
    Overrides:
    
    getMaximumBitmapWidth in class Canvas
    
    See Also:
    
    getMaximumBitmapHeight()
  - getMaximumBitmapHeight
```
public int getMaximumBitmapHeight()
```
    Returns the maximum allowed height for bitmaps drawn with this canvas. Attempting to draw with a bitmap taller than this value will result in an error.
    
    Overrides:
    
    getMaximumBitmapHeight in class Canvas
    
    See Also:
    
    getMaximumBitmapWidth()
  - save
```
public int save()
```
    Saves the current matrix and clip onto a private stack. Subsequent calls to translate,scale,rotate,skew,concat or clipRect,clipPath will all operate as usual, but when the balancing call to restore() is made, those calls will be forgotten, and the settings that existed before the save() will be reinstated.
    
    Overrides:
    
    save in class Canvas
    
    Returns:
    
    The value to pass to restoreToCount() to balance this save()
  - save
```
public int save(int saveFlags)
```
    Based on saveFlags, can save the current matrix and clip onto a private stack. Subsequent calls to translate,scale,rotate,skew,concat or clipRect,clipPath will all operate as usual, but when the balancing call to restore() is made, those calls will be forgotten, and the settings that existed before the save() will be reinstated. Currently behaves the same as save() - ignores saveFlags and simply saves the entire state.
    
    Overrides:
    
    save in class Canvas
    
    Parameters:
    
    saveFlags - flag bits that specify which parts of the Canvas state to save/restore - currently ignored
    
    Returns:
    
    The value to pass to restoreToCount() to balance this save()
  - saveLayer
```
public int saveLayer(RectF bounds,
                     Paint paint,
                     int saveFlags)
```
    This behaves the same as save(), and all arguments are ignored.
    
    Overrides:
    
    saveLayer in class Canvas
    
    Parameters:
    
    bounds - Ignored
    
    paint - Ignored
    
    saveFlags - Ignored
    
    Returns:
    
    value to pass to restoreToCount() to balance this save()
  - saveLayer
```
public int saveLayer(float left,
                     float top,
                     float right,
                     float bottom,
                     Paint paint,
                     int saveFlags)
```
    This behaves the same as save(), and all arguments are ignored.
    
    Overrides:
    
    saveLayer in class Canvas
  - saveLayerAlpha
```
public int saveLayerAlpha(RectF bounds,
                          int alpha,
                          int saveFlags)
```
    This behaves the same as save(), and all arguments are ignored.
    
    Overrides:
    
    saveLayerAlpha in class Canvas
    
    Parameters:
    
    bounds - Ignored
    
    alpha - Ignored
    
    saveFlags - Ignored
    
    Returns:
    
    value to pass to restoreToCount() to balance this call
  - saveLayerAlpha
```
public int saveLayerAlpha(float left,
                          float top,
                          float right,
                          float bottom,
                          int alpha,
                          int saveFlags)
```
    This behaves the same as save(), and all arguments are ignored.
    
    Overrides:
    
    saveLayerAlpha in class Canvas
  - restore
```
public void restore()
```
    This call balances a previous call to save(), and is used to remove all modifications to the matrix/clip state since the last save call. It is an error to call restore() more times than save() was called.
    
    Overrides:
    
    restore in class Canvas
  - getSaveCount
```
public int getSaveCount()
```
    Returns the number of matrix/clip states on the Canvas' private stack. This will equal # save() calls - # restore() calls.
    
    Overrides:
    
    getSaveCount in class Canvas
  - restoreToCount
```
public void restoreToCount(int saveCount)
```
    Efficient way to pop any calls to save() that happened after the save count reached saveCount. It is an error for saveCount to be less than 1. Example: int count = canvas.save(); ... // more calls potentially to save() ... canvas.restoreToCount(count); // now the canvas is back in the same state it was before the initial call to save().
    
    Overrides:
    
    restoreToCount in class Canvas
    
    Parameters:
    
    saveCount - The save level to restore to.
  - translate
```
public void translate(float dx,
                      float dy)
```
    Preconcat the current matrix with the specified translation
    
    Overrides:
    
    translate in class Canvas
    
    Parameters:
    
    dx - The distance to translate in X
    
    dy - The distance to translate in Y
  - scale
```
public void scale(float sx,
                  float sy)
```
    Preconcat the current matrix with the specified scale.
    
    Overrides:
    
    scale in class Canvas
    
    Parameters:
    
    sx - The amount to scale in X
    
    sy - The amount to scale in Y
  - rotate
```
public void rotate(float degrees)
```
    Preconcat the current matrix with the specified rotation.
    
    Overrides:
    
    rotate in class Canvas
    
    Parameters:
    
    degrees - The amount to rotate, in degrees
  - skew
```
public void skew(float sx,
                 float sy)
```
    Preconcat the current matrix with the specified skew.
    
    Overrides:
    
    skew in class Canvas
    
    Parameters:
    
    sx - The amount to skew in X
    
    sy - The amount to skew in Y
  - concat
```
public void concat(Matrix matrix)
```
    Preconcat the current matrix with the specified matrix.
    
    Overrides:
    
    concat in class Canvas
    
    Parameters:
    
    matrix - The matrix to preconcatenate with the current matrix
  - setMatrix
```
public void setMatrix(Matrix matrix)
```
    Completely replace the current matrix with the specified matrix. If the matrix parameter is null, then the current matrix is reset to identity.
    
    Overrides:
    
    setMatrix in class Canvas
    
    Parameters:
    
    matrix - The matrix to replace the current matrix with. If it is null, set the current matrix to identity.
  - getMatrix
```
public void getMatrix(Matrix ctm)
```
    Return, in ctm, the current transformation matrix. This does not alter the matrix in the canvas, but just returns a copy of it.
    
    Overrides:
    
    getMatrix in class Canvas
  - clipRect
```
public boolean clipRect(RectF rect,
                        Region.Op op)
```
    Modify the current clip with the specified rectangle. Only supports INTERSECT as the operation; throws an UnsupportedOperationException if another operation is supplied
    
    Overrides:
    
    clipRect in class Canvas
    
    Parameters:
    
    rect - The rect to intersect with the current clip
    
    op - How the clip is modified
    
    Returns:
    
    true if the resulting clip is non-empty
  - clipRect
```
public boolean clipRect(Rect rect,
                        Region.Op op)
```
    Modify the current clip with the specified rectangle. Only supports INTERSECT as the operation; throws an UnsupportedOperationException if another operation is supplied
    
    Overrides:
    
    clipRect in class Canvas
    
    Parameters:
    
    rect - The rectangle to intersect with the current clip.
    
    op - How the clip is modified
    
    Returns:
    
    true if the resulting clip is non-empty
  - clipRect
```
public boolean clipRect(RectF rect)
```
    Intersect the current clip with the specified rectangle, which is expressed in local coordinates.
    
    Overrides:
    
    clipRect in class Canvas
    
    Parameters:
    
    rect - The rectangle to intersect with the current clip.
    
    Returns:
    
    true if the resulting clip is non-empty
  - clipRect
```
public boolean clipRect(Rect rect)
```
    Intersect the current clip with the specified rectangle, which is expressed in local coordinates.
    
    Overrides:
    
    clipRect in class Canvas
    
    Parameters:
    
    rect - The rectangle to intersect with the current clip.
    
    Returns:
    
    true if the resulting clip is non-empty
  - clipRect
```
public boolean clipRect(float left,
                        float top,
                        float right,
                        float bottom,
                        Region.Op op)
```
    Modify the current clip with the specified rectangle, which is expressed in local coordinates. Only supports INTERSECT as the operation; throws an UnsupportedOperationException if another operation is supplied
    
    Overrides:
    
    clipRect in class Canvas
    
    Parameters:
    
    left - The left side of the rectangle to intersect with the current clip
    
    top - The top of the rectangle to intersect with the current clip
    
    right - The right side of the rectangle to intersect with the current clip
    
    bottom - The bottom of the rectangle to intersect with the current clip
    
    op - How the clip is modified
    
    Returns:
    
    true if the resulting clip is non-empty
  - clipRect
```
public boolean clipRect(float left,
                        float top,
                        float right,
                        float bottom)
```
    Intersect the current clip with the specified rectangle, which is expressed in local coordinates.
    
    Overrides:
    
    clipRect in class Canvas
    
    Parameters:
    
    left - The left side of the rectangle to intersect with the current clip
    
    top - The top of the rectangle to intersect with the current clip
    
    right - The right side of the rectangle to intersect with the current clip
    
    bottom - The bottom of the rectangle to intersect with the current clip
    
    Returns:
    
    true if the resulting clip is non-empty
  - clipRect
```
public boolean clipRect(int left,
                        int top,
                        int right,
                        int bottom)
```
    Intersect the current clip with the specified rectangle, which is expressed in local coordinates.
    
    Overrides:
    
    clipRect in class Canvas
    
    Parameters:
    
    left - The left side of the rectangle to intersect with the current clip
    
    top - The top of the rectangle to intersect with the current clip
    
    right - The right side of the rectangle to intersect with the current clip
    
    bottom - The bottom of the rectangle to intersect with the current clip
    
    Returns:
    
    true if the resulting clip is non-empty
  - clipPath
```
public boolean clipPath(Path path,
                        Region.Op op)
```
    Not supported; throws UnsupportedOperationException if called.
    
    Overrides:
    
    clipPath in class Canvas
    
    Parameters:
    
    path - The path to operate on the current clip
    
    op - How the clip is modified
    
    Returns:
    
    true if the resulting is non-empty
  - clipPath
```
public boolean clipPath(Path path)
```
    Intersect the current clip with the specified path. Not supported; throws UnsupportedOperationException if called.
    
    Overrides:
    
    clipPath in class Canvas
    
    Parameters:
    
    path - The path to intersect with the current clip
    
    Returns:
    
    true if the resulting is non-empty
  - clipRegion
```
public boolean clipRegion(Region region,
                          Region.Op op)
```
    Not supported; throws UnsupportedOperationException if called.
    
    Overrides:
    
    clipRegion in class Canvas
    
    Parameters:
    
    region - The region to operate on the current clip, based on op
    
    op - How the clip is modified
    
    Returns:
    
    true if the resulting is non-empty
  - clipRegion
```
public boolean clipRegion(Region region)
```
    Not supported; throws UnsupportedOperationException if called.
    
    Overrides:
    
    clipRegion in class Canvas
    
    Parameters:
    
    region - The region to operate on the current clip, based on op
    
    Returns:
    
    true if the resulting is non-empty
  - getDrawFilter
```
public DrawFilter getDrawFilter()
```
    Not supported; throws UnsupportedOperationException if called.
    
    Overrides:
    
    getDrawFilter in class Canvas
  - setDrawFilter
```
public void setDrawFilter(DrawFilter filter)
```
    Not supported; throws UnsupportedOperationException if called.
    
    Overrides:
    
    setDrawFilter in class Canvas
  - quickReject
```
public boolean quickReject(RectF rect,
                           PDFCanvas.EdgeType type)
```
    Not supported, so always returns false.
    
    Parameters:
    
    rect - Ignored
    
    type - Ignored
    
    Returns:
    
    Always returns false
  - quickReject
```
public boolean quickReject(Path path,
                           PDFCanvas.EdgeType type)
```
    Not supported, so always returns false.
    
    Parameters:
    
    path - Ignored
    
    type - Ignored
    
    Returns:
    
    Always returns false
  - quickReject
```
public boolean quickReject(float left,
                           float top,
                           float right,
                           float bottom,
                           PDFCanvas.EdgeType type)
```
    Not supported, so always returns false.
    
    Parameters:
    
    left - Ignored
    
    top - Ignored
    
    right - Ignored
    
    bottom - Ignored
    
    type - Ignored
    
    Returns:
    
    Always returns false
  - getClipBounds
```
public boolean getClipBounds(Rect bounds)
```
    Retrieve the clip bounds, returning true if they are non-empty.
    
    Overrides:
    
    getClipBounds in class Canvas
    
    Parameters:
    
    bounds - Return the clip bounds here. If it is null, ignore it but still return true if the current clip is non-empty.
    
    Returns:
    
    true if the current clip is non-empty.
  - drawRGB
```
public void drawRGB(int r,
                    int g,
                    int b)
```
    Fill the entire page (restricted to the current clip) with the specified RGB color.
    
    Overrides:
    
    drawRGB in class Canvas
    
    Parameters:
    
    r - red component (0..255) of the color to draw onto the canvas
    
    g - green component (0..255) of the color to draw onto the canvas
    
    b - blue component (0..255) of the color to draw onto the canvas
  - drawARGB
```
public void drawARGB(int a,
                     int r,
                     int g,
                     int b)
```
    Fill the entire page (restricted to the current clip) with the specified ARGB color.
    
    Overrides:
    
    drawARGB in class Canvas
    
    Parameters:
    
    a - alpha component (0..255) of the color to draw onto the canvas
    
    r - red component (0..255) of the color to draw onto the canvas
    
    g - green component (0..255) of the color to draw onto the canvas
    
    b - blue component (0..255) of the color to draw onto the canvas
  - drawColor
```
public void drawColor(int color)
```
    Fill the entire page (restricted to the current clip) with the specified color.
    
    Overrides:
    
    drawColor in class Canvas
    
    Parameters:
    
    color - the color to draw onto the canvas
  - drawColor
```
public void drawColor(int color,
                      PorterDuff.Mode mode)
```
    Fill the entire page (restricted to the current clip) with the specified color and porter-duff xfermode. Xfermodes are not currently supported, so always opaque overwrite.
    
    Overrides:
    
    drawColor in class Canvas
    
    Parameters:
    
    color - the color to draw with
    
    mode - the porter-duff mode to apply to the color - currently ignored
  - drawPaint
```
public void drawPaint(Paint paint)
```
    Fill the entire page (restricted to the current clip) with the specified paint.
    
    Overrides:
    
    drawPaint in class Canvas
    
    Parameters:
    
    paint - The paint used to draw onto the canvas
  - drawPoints
```
public void drawPoints(float[] pts,
                       int offset,
                       int count,
                       Paint paint)
```
    Draw a series of points. Each point is centered at the coordinate specified by pts[], and its diameter is specified by the paint's stroke width (as transformed by the canvas' CTM), with special treatment for a stroke width of 0, which always draws exactly 1 pixel (or at most 4 if antialiasing is enabled). The shape of the point is controlled by the paint's Cap type. The shape is a square, unless the cap type is Round, in which case the shape is a circle.
    
    Overrides:
    
    drawPoints in class Canvas
    
    Parameters:
    
    pts - Array of points to draw [x0 y0 x1 y1 x2 y2 ...]
    
    offset - Number of values to skip before starting to draw.
    
    count - The number of values to process, after skipping offset of them. Since one point uses two values, the number of "points" that are drawn is really (count >> 1).
    
    paint - The paint used to draw the points
  - drawPoints
```
public void drawPoints(float[] pts,
                       Paint paint)
```
    Helper for drawPoints() that assumes you want to draw the entire array
    
    Overrides:
    
    drawPoints in class Canvas
  - drawPoint
```
public void drawPoint(float x,
                      float y,
                      Paint paint)
```
    Helper for drawPoints() for drawing a single point.
    
    Overrides:
    
    drawPoint in class Canvas
  - drawLine
```
public void drawLine(float startX,
                     float startY,
                     float stopX,
                     float stopY,
                     Paint paint)
```
    Draw a line segment with the specified start and stop x,y coordinates, using the specified paint.
    
    Overrides:
    
    drawLine in class Canvas
    
    Parameters:
    
    startX - The x-coordinate of the start point of the line
    
    startY - The y-coordinate of the start point of the line
    
    paint - The paint used to draw the line
  - drawLines
```
public void drawLines(float[] pts,
                      int offset,
                      int count,
                      Paint paint)
```
    Draw a series of lines. Each line is taken from 4 consecutive values in the pts array. Thus to draw 1 line, the array must contain at least 4 values. This is logically the same as drawing the array as follows: drawLine(pts[0], pts[1], pts[2], pts[3]) followed by drawLine(pts[4], pts[5], pts[6], pts[7]) and so on.
    
    Overrides:
    
    drawLines in class Canvas
    
    Parameters:
    
    pts - Array of points to draw [x0 y0 x1 y1 x2 y2 ...]
    
    offset - Number of values in the array to skip before drawing.
    
    count - The number of values in the array to process, after skipping "offset" of them. Since each line uses 4 values, the number of "lines" that are drawn is really (count >> 2).
    
    paint - The paint used to draw the points
  - drawLines
```
public void drawLines(float[] pts,
                      Paint paint)
```
    Helper method for drawLines for the common case where all points are to be used.
    
    Overrides:
    
    drawLines in class Canvas
  - drawRect
```
public void drawRect(RectF r,
                     Paint paint)
```
    Draw the specified Rect using the specified paint. The rectangle will be filled or framed based on the Style in the paint.
    
    Overrides:
    
    drawRect in class Canvas
    
    Parameters:
    
    rect - The rect to be drawn
    
    paint - The paint used to draw the rect
  - drawRect
```
public void drawRect(Rect r,
                     Paint paint)
```
    Draw the specified Rect using the specified Paint. The rectangle will be filled or framed based on the Style in the paint.
    
    Overrides:
    
    drawRect in class Canvas
    
    Parameters:
    
    r - The rectangle to be drawn.
    
    paint - The paint used to draw the rectangle
  - drawRect
```
public void drawRect(float left,
                     float top,
                     float right,
                     float bottom,
                     Paint paint)
```
    Draw the specified Rect using the specified paint. The rectangle will be filled or framed based on the Style in the paint.
    
    Overrides:
    
    drawRect in class Canvas
    
    Parameters:
    
    left - The left side of the rectangle to be drawn
    
    top - The top side of the rectangle to be drawn
    
    right - The right side of the rectangle to be drawn
    
    bottom - The bottom side of the rectangle to be drawn
    
    paint - The paint used to draw the rect
  - drawOval
```
public void drawOval(RectF oval,
                     Paint paint)
```
    Draw the specified oval using the specified paint. The oval will be filled or framed based on the Style in the paint.
    
    Overrides:
    
    drawOval in class Canvas
    
    Parameters:
    
    oval - The rectangle bounds of the oval to be drawn
  - drawCircle
```
public void drawCircle(float cx,
                       float cy,
                       float radius,
                       Paint paint)
```
    Draw the specified circle using the specified paint. If radius is <= 0, then nothing will be drawn. The circle will be filled or framed based on the Style in the paint.
    
    Overrides:
    
    drawCircle in class Canvas
    
    Parameters:
    
    cx - The x-coordinate of the center of the cirle to be drawn
    
    cy - The y-coordinate of the center of the cirle to be drawn
    
    radius - The radius of the cirle to be drawn
    
    paint - The paint used to draw the circle
  - drawArc
```
public void drawArc(RectF oval,
                    float startAngle,
                    float sweepAngle,
                    boolean useCenter,
                    Paint paint)
```
    Draw the specified arc, which will be scaled to fit inside the specified oval.
    
    If the start angle is negative or >= 360, the start angle is treated as start angle modulo 360.
    
    If the sweep angle is >= 360, then the oval is drawn completely. Note that this differs slightly from SkPath::arcTo, which treats the sweep angle modulo 360. If the sweep angle is negative, the sweep angle is treated as sweep angle modulo 360
    
    The arc is drawn clockwise. An angle of 0 degrees correspond to the geometric angle of 0 degrees (3 o'clock on a watch.)
    
    Overrides:
    
    drawArc in class Canvas
    
    Parameters:
    
    oval - The bounds of oval used to define the shape and size of the arc
    
    startAngle - Starting angle (in degrees) where the arc begins
    
    sweepAngle - Sweep angle (in degrees) measured clockwise
    
    useCenter - If true, include the center of the oval in the arc, and close it if it is being stroked. This will draw a wedge
    
    paint - The paint used to draw the arc
  - drawRoundRect
```
public void drawRoundRect(RectF rect,
                          float rx,
                          float ry,
                          Paint paint)
```
    Draw the specified round-rect using the specified paint. The roundrect will be filled or framed based on the Style in the paint.
    
    Overrides:
    
    drawRoundRect in class Canvas
    
    Parameters:
    
    rect - The rectangular bounds of the roundRect to be drawn
    
    rx - The x-radius of the oval used to round the corners
    
    ry - The y-radius of the oval used to round the corners
    
    paint - The paint used to draw the roundRect
  - drawPath
```
public void drawPath(Path path,
                     Paint paint)
```
    Not supported; throws UnsupportedOperationException if called.
    
    Overrides:
    
    drawPath in class Canvas
    
    Parameters:
    
    path - The path to be drawn
    
    paint - The paint used to draw the path
  - drawPatch
```
public void drawPatch(Bitmap bitmap,
                      byte[] chunks,
                      RectF dst,
                      Paint paint)
```
    Not supported; throws UnsupportedOperationException if called.
    
    Parameters:
    
    bitmap - The bitmap to draw as an N-patch
    
    chunks - The patches information (matches the native struct Res_png_9patch)
    
    dst - The destination rectangle.
    
    paint - The paint to draw the bitmap with. may be null
  - drawBitmap
```
public void drawBitmap(Bitmap bitmap,
                       float left,
                       float top,
                       Paint paint)
```
    Draw the specified bitmap, with its top/left corner at (x,y), using the specified paint, transformed by the current matrix.
    Note: if the paint contains a maskfilter that generates a mask which extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), then the bitmap will be drawn as if it were in a Shader with CLAMP mode. Thus the color outside of the original width/height will be the edge color replicated.
    If the bitmap and canvas have different densities, this function will take care of automatically scaling the bitmap to draw at the same density as the canvas.
    
    Overrides:
    
    drawBitmap in class Canvas
    
    Parameters:
    
    bitmap - The bitmap to be drawn
    
    left - The position of the left side of the bitmap being drawn
    
    top - The position of the top side of the bitmap being drawn
    
    paint - The paint used to draw the bitmap (may be null)
  - drawBitmap
```
public void drawBitmap(Bitmap bitmap,
                       Rect src,
                       RectF dst,
                       Paint paint)
```
    Draw the specified bitmap, scaling/translating automatically to fill the destination rectangle. If the source rectangle is not null, it specifies the subset of the bitmap to draw.
    Note: if the paint contains a maskfilter that generates a mask which extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), then the bitmap will be drawn as if it were in a Shader with CLAMP mode. Thus the color outside of the original width/height will be the edge color replicated.
    This function ignores the density associated with the bitmap. This is because the source and destination rectangle coordinate spaces are in their respective densities, so must already have the appropriate scaling factor applied.
    
    Overrides:
    
    drawBitmap in class Canvas
    
    Parameters:
    
    bitmap - The bitmap to be drawn
    
    src - May be null. The subset of the bitmap to be drawn
    
    dst - The rectangle that the bitmap will be scaled/translated to fit into
    
    paint - May be null. The paint used to draw the bitmap
  - drawBitmap
```
public void drawBitmap(Bitmap bitmap,
                       Rect src,
                       Rect dst,
                       Paint paint)
```
    Draw the specified bitmap, scaling/translating automatically to fill the destination rectangle. If the source rectangle is not null, it specifies the subset of the bitmap to draw.
    Note: if the paint contains a maskfilter that generates a mask which extends beyond the bitmap's original width/height (e.g. BlurMaskFilter), then the bitmap will be drawn as if it were in a Shader with CLAMP mode. Thus the color outside of the original width/height will be the edge color replicated.
    This function ignores the density associated with the bitmap. This is because the source and destination rectangle coordinate spaces are in their respective densities, so must already have the appropriate scaling factor applied.
    
    Overrides:
    
    drawBitmap in class Canvas
    
    Parameters:
    
    bitmap - The bitmap to be drawn
    
    src - May be null. The subset of the bitmap to be drawn
    
    dst - The rectangle that the bitmap will be scaled/translated to fit into
    
    paint - May be null. The paint used to draw the bitmap
  - drawBitmap
```
public void drawBitmap(int[] colors,
                       int offset,
                       int stride,
                       float x,
                       float y,
                       int width,
                       int height,
                       boolean hasAlpha,
                       Paint paint)
```
    Treat the specified array of colors as a bitmap, and draw it. This gives the same result as first creating a bitmap from the array, and then drawing it, but this method avoids explicitly creating a bitmap object which can be more efficient if the colors are changing often.
    
    Overrides:
    
    drawBitmap in class Canvas
    
    Parameters:
    
    colors - Array of colors representing the pixels of the bitmap
    
    offset - Offset into the array of colors for the first pixel
    
    stride - The number of colors in the array between rows (must be >= width or <= -width).
    
    x - The X coordinate for where to draw the bitmap
    
    y - The Y coordinate for where to draw the bitmap
    
    width - The width of the bitmap
    
    height - The height of the bitmap
    
    hasAlpha - True if the alpha channel of the colors contains valid values. If false, the alpha byte is ignored (assumed to be 0xFF for every pixel).
    
    paint - May be null. The paint used to draw the bitmap
  - drawBitmap
```
public void drawBitmap(int[] colors,
                       int offset,
                       int stride,
                       int x,
                       int y,
                       int width,
                       int height,
                       boolean hasAlpha,
                       Paint paint)
```
    Legacy version of drawBitmap(int[] colors, ...) that took ints for x,y
    
    Overrides:
    
    drawBitmap in class Canvas
  - drawBitmap
```
public void drawBitmap(Bitmap bitmap,
                       Matrix transformMatrix,
                       Paint paint)
```
    Draw the bitmap using the specified matrix.
    
    Overrides:
    
    drawBitmap in class Canvas
    
    Parameters:
    
    bitmap - The bitmap to draw
    
    matrix - The matrix used to transform the bitmap when it is drawn
    
    paint - May be null. The paint used to draw the bitmap
  - drawBitmapMesh
```
public void drawBitmapMesh(Bitmap bitmap,
                           int meshWidth,
                           int meshHeight,
                           float[] verts,
                           int vertOffset,
                           int[] colors,
                           int colorOffset,
                           Paint paint)
```
    Draw the bitmap through the mesh, where mesh vertices are evenly distributed across the bitmap. There are meshWidth+1 vertices across, and meshHeight+1 vertices down. The verts array is accessed in row-major order, so that the first meshWidth+1 vertices are distributed across the top of the bitmap from left to right. This method stretches the supplied bitmap across the specified mesh, which can be used to create 3D effects in which the bitmap appears to be applied to the surface for which the mesh is the projection on the plane of the page.
    
    Overrides:
    
    drawBitmapMesh in class Canvas
    
    Parameters:
    
    bitmap - The bitmap to draw using the mesh
    
    meshWidth - The number of columns in the mesh. Nothing is drawn if this is 0
    
    meshHeight - The number of rows in the mesh. Nothing is drawn if this is 0
    
    verts - Array of x,y pairs, specifying where the mesh should be drawn. There must be at least (meshWidth+1) * (meshHeight+1) * 2 + meshOffset values in the array
    
    vertOffset - Number of verts elements to skip before drawing
    
    colors - May be null. Specifies a color at each vertex, which is interpolated across the cell, and whose values are multiplied by the corresponding bitmap colors. If not null, there must be at least (meshWidth+1) * (meshHeight+1) + colorOffset values in the array.
    
    colorOffset - Number of color elements to skip before drawing
    
    paint - May be null. The paint used to draw the bitmap
  - drawVertices
```
public void drawVertices(Canvas.VertexMode mode,
                         int vertexCount,
                         float[] verts,
                         int vertOffset,
                         float[] texs,
                         int texOffset,
                         int[] colors,
                         int colorOffset,
                         short[] indices,
                         int indexOffset,
                         int indexCount,
                         Paint paint)
```
    Draw the array of vertices, interpreted as triangles (based on mode). The verts array is required, and specifies the x,y pairs for each vertex. The color array specifies the color at each vertex, and the colors at each vertex are interpolated across the corresponding triangle in a gradient. The indices and texs arrays are currently ignored.
    The VertexMode determines how the subsequent points in the sequence of vertices are interpreted.
    - TRIANGLES In this mode each triple of points (6 successive coordinates) is treated as a separate triangle. This is the most general mode; no assumption is made about triangle adjacency.
    - TRIANGLE_STRIP In this mode each successive vertex is combined with the two before it to form a new triangle, giving a "strip" of triangles where each shares an edge with the triangle before it
    - TRIANGLE_FAN In this mode the first point is assumed to be the center vertex for all of the triangles, with subsequent points defining the "outer" vertices of the fan arranged radially around the center. The triangles are thus "pie wedges" with the first point at the center of the pie, and each "wedge" sharing an edge and vertex. Note that the first and last outer vertices are not automatically joined.
    Overrides:
    
    drawVertices in class Canvas
    
    Parameters:
    
    mode - How to interpret the array of vertices
    
    vertexCount - The number of values in the vertices array (and corresponding texs and colors arrays if non-null). Each logical vertex is two values (x, y), vertexCount must be a multiple of 2.
    
    verts - Array of vertices for the mesh
    
    vertOffset - Number of values in the verts to skip before drawing.
    
    texs - Currently ignored (may be null)
    
    texOffset - Currently ignored
    
    colors - Specifies a color for each vertex, to be interpolated across the triangle.
    
    colorOffset - Number of values in colors to skip before drawing.
    
    indices - Currently ignored (may be null)
    
    indexCount - Currently ignored
    
    paint - Currently ignored (may be null)
  - drawText
```
public void drawText(char[] text,
                     int index,
                     int count,
                     float x,
                     float y,
                     Paint paint)
```
    Draw the text, with origin at (x,y), using the typeface and size in the specified paint.
    
    Overrides:
    
    drawText in class Canvas
    
    Parameters:
    
    text - The text to be drawn
    
    x - The x-coordinate of the origin of the text being drawn
    
    y - The y-coordinate of the origin of the text being drawn
    
    paint - The paint used for the text (e.g. color, size, style)
  - drawText
```
public void drawText(String text,
                     float x,
                     float y,
                     Paint paint)
```
    Draw the text, with origin at (x,y), using the typeface and size in the specified paint.
    
    Overrides:
    
    drawText in class Canvas
    
    Parameters:
    
    text - The text to be drawn
    
    x - The x-coordinate of the origin of the text being drawn
    
    y - The y-coordinate of the origin of the text being drawn
    
    paint - The paint used for the text (e.g. color, size, style)
  - drawText
```
public void drawText(String text,
                     int start,
                     int end,
                     float x,
                     float y,
                     Paint paint)
```
    Draw the text, with origin at (x,y), using the typeface and size in the specified paint.
    
    Overrides:
    
    drawText in class Canvas
    
    Parameters:
    
    text - The text to be drawn
    
    start - The index of the first character in text to draw
    
    end - (end - 1) is the index of the last character in text to draw
    
    x - The x-coordinate of the origin of the text being drawn
    
    y - The y-coordinate of the origin of the text being drawn
    
    paint - The paint used for the text (e.g. color, size, style)
  - drawText
```
public void drawText(CharSequence text,
                     int start,
                     int end,
                     float x,
                     float y,
                     Paint paint)
```
    Draw the specified range of text, specified by start/end, with its origin at (x,y), using the typeface and size in the specified paint.
    
    Overrides:
    
    drawText in class Canvas
    
    Parameters:
    
    text - The text to be drawn
    
    start - The index of the first character in text to draw
    
    end - (end - 1) is the index of the last character in text to draw
    
    x - The x-coordinate of origin for where to draw the text
    
    y - The y-coordinate of origin for where to draw the text
    
    paint - The paint used for the text (e.g. color, size, style)
  - drawTextRun
```
public void drawTextRun(char[] text,
                        int index,
                        int count,
                        int contextIndex,
                        int contextCount,
                        float x,
                        float y,
                        int dir,
                        Paint paint)
```
    Currently unsupported; throws UnsupportedOperationException if called.
    
    Parameters:
    
    text - the text to render
    
    index - the start of the text to render
    
    count - the count of chars to render
    
    contextIndex - the start of the context for shaping. Must be no greater than index.
    
    contextCount - the number of characters in the context for shaping. ContexIndex + contextCount must be no less than index + count.
    
    x - the x position at which to draw the text
    
    y - the y position at which to draw the text
    
    dir - the run direction, either DIRECTION_LTR or DIRECTION_RTL.
    
    paint - the paint
  - drawTextRun
```
public void drawTextRun(CharSequence text,
                        int start,
                        int end,
                        int contextStart,
                        int contextEnd,
                        float x,
                        float y,
                        int dir,
                        Paint paint)
```
    Currently unsupported; throws UnsupportedOperationException if called.
    
    Parameters:
    
    text - the text to render
    
    start - the start of the text to render. Data before this position can be used for shaping context.
    
    end - the end of the text to render. Data at or after this position can be used for shaping context.
    
    x - the x position at which to draw the text
    
    y - the y position at which to draw the text
    
    dir - the run direction, either 0 for LTR or 1 for RTL.
    
    paint - the paint
  - drawPosText
```
public void drawPosText(char[] text,
                        int index,
                        int count,
                        float[] pos,
                        Paint paint)
```
    Draw the text in the array, with each character's origin specified by the pos array, using the typeface and size in the specified Paint.
    
    Overrides:
    
    drawPosText in class Canvas
    
    Parameters:
    
    text - The text to be drawn
    
    index - The index of the first character to draw
    
    count - The number of characters to draw, starting from index.
    
    pos - Array of [x,y] positions, used to position each character
    
    paint - The paint used for the text (e.g. color, size, style)
  - drawPosText
```
public void drawPosText(String text,
                        float[] pos,
                        Paint paint)
```
    Draw the text in the array, with each character's origin specified by the pos array, using the typeface and size in the specified Paint.
    
    Overrides:
    
    drawPosText in class Canvas
    
    Parameters:
    
    text - The text to be drawn
    
    pos - Array of [x,y] positions, used to position each character
    
    paint - The paint used for the text (e.g. color, size, style)
  - drawTextOnPath
```
public void drawTextOnPath(char[] text,
                           int index,
                           int count,
                           Path path,
                           float hOffset,
                           float vOffset,
                           Paint paint)
```
    Draw the text, with origin at (x,y), along the specified path, using the typeface and size in the specified Paint.
    
    Overrides:
    
    drawTextOnPath in class Canvas
    
    Parameters:
    
    text - The text to be drawn
    
    path - The path the text should follow for its baseline
    
    hOffset - The distance along the path to add to the text's starting position
    
    vOffset - The distance above(-) or below(+) the path to position the text
    
    paint - The paint used for the text (e.g. color, size, style)
  - drawTextOnPath
```
public void drawTextOnPath(String text,
                           Path path,
                           float hOffset,
                           float vOffset,
                           Paint paint)
```
    Draw the text, with origin at (x,y), along the specified path, using the typeface and size in the specified Paint.
    
    Overrides:
    
    drawTextOnPath in class Canvas
    
    Parameters:
    
    text - The text to be drawn
    
    path - The path the text should follow for its baseline
    
    hOffset - The distance along the path to add to the text's starting position
    
    vOffset - The distance above(-) or below(+) the path to position the text
    
    paint - The paint used for the text (e.g. color, size, style)
  - drawPicture
```
public void drawPicture(Picture picture)
```
    Currently unsupported; throws UnsupportedOperationException if called.
    
    Overrides:
    
    drawPicture in class Canvas
    
    Parameters:
    
    picture - The picture to be drawn
  - drawPicture
```
public void drawPicture(Picture picture,
                        RectF dst)
```
    Currently unsupported; throws UnsupportedOperationException if called.
    
    Overrides:
    
    drawPicture in class Canvas
  - drawPicture
```
public void drawPicture(Picture picture,
                        Rect dst)
```
    Currently unsupported; throws UnsupportedOperationException if called.
    
    Overrides:
    
    drawPicture in class Canvas

Class PDFCanvas

Nested Class Summary

Nested classes/interfaces inherited from class android.graphics.Canvas

Field Summary

Fields inherited from class android.graphics.Canvas

Constructor Summary

Method Summary

Methods inherited from class android.graphics.Canvas

Methods inherited from class java.lang.Object

Field Detail

PDF_STROKE_CAP_BUTT

PDF_STROKE_CAP_ROUND

PDF_STROKE_CAP_PROJECTING_SQUARE

PDF_STROKE_JOIN_MITER

PDF_STROKE_JOIN_ROUND

PDF_STROKE_JOIN_BEVEL

DIRECTION_LTR

DIRECTION_RTL

Constructor Detail

PDFCanvas

PDFCanvas

Method Detail

isHardwareAccelerated

setBitmap

setViewport

isOpaque

getWidth

getHeight

getDensity

setDensity

setScreenDensity

getMaximumBitmapWidth

getMaximumBitmapHeight

save

save

saveLayer

saveLayer

saveLayerAlpha

saveLayerAlpha

restore

getSaveCount

restoreToCount

translate

scale

rotate

skew

concat

setMatrix

getMatrix

clipRect

clipRect

clipRect

clipRect

clipRect

clipRect

clipRect

clipPath

clipPath

clipRegion

clipRegion

getDrawFilter

setDrawFilter

quickReject

quickReject

quickReject

getClipBounds

drawRGB

drawARGB

drawColor

drawColor

drawPaint

drawPoints

drawPoints

drawPoint

drawLine

drawLines

drawLines

drawRect

drawRect

drawRect