com.qoppa.android.pdfProcess

Class PDFCanvas

java.lang.Object

com.qoppa.android.pdfProcess.PDFCanvas

Direct Known Subclasses:

PDFCanvasForm

public class PDFCanvas
extends java.lang.Object

Provides methods to modify a PDF page. Use this class to draw shapes, and add text and images to pages.

Author:

Qoppa Software

Constructor Summary

Constructors

Constructor and Description
PDFCanvas(PDFPage page, com.qoppa.android.pdfProcess.util.PDFContentStream2 stream)

Method Summary

Modifier and Type	Method and Description
void	concatCanvasMatrix(Matrix matrix) Concats the current matrix with the parameter.
void	drawBitmap(Bitmap bitmap, int x, int y, float width, float height, ImageParam params) Draws a Bitmap
void	drawBitmap(Bitmap bitmap, int x, int y, float width, float height, ImageParam params, int alpha) Draws a Bitmap
void	drawBitmap(Bitmap bitmap, int x, int y, ImageParam params) Draws a Bitmap
void	drawBitmap(Bitmap bitmap, Matrix matrix, ImageParam params) Draws a Bitmap, using the matrix to determine the bitmap
void	drawBitmap(Bitmap bitmap, Matrix matrix, ImageParam params, int alpha) Draws a Bitmap, using the matrix to determine the bitmap
void	drawCurve(float x0, float y0, float x1, float y1, float x2, float y2, float x3, float y3, PDFPaint paint) Draws a bezier curve.
void	drawLine(float x1, float y1, float x2, float y2, PDFPaint paint) Draws a line.
void	drawPath(PDFPath path, PDFPaint paint) Draws a path
void	drawRect(float left, float top, float right, float bottom, PDFPaint paint) Draws a rectangle.
void	drawText(java.lang.String str, int textColor, float x, float y, PDFFont font) Draws some text
Matrix	getCanvasMatrix() Returns the current transformation matrix.
void	setCanvasMatrix(Matrix matrix) Sets the current transformation matrix

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PDFCanvas

public PDFCanvas(PDFPage page,
                 com.qoppa.android.pdfProcess.util.PDFContentStream2 stream)

Method Detail

drawRect

public void drawRect(float left,
                     float top,
                     float right,
                     float bottom,
                     PDFPaint paint)

Draws a rectangle.

Parameters:

left - The x coordinate of the upper left corner of the rectangle.

top - The y coordinate of the upper left corner of the rectangle.

right - The x coordinate of the bottom right corner of the rectangle.

bottom - The y coordinate of the bottom right corner of the rectangle.

paint - Determines the appearance of the rectangle

drawLine

public void drawLine(float x1,
                     float y1,
                     float x2,
                     float y2,
                     PDFPaint paint)

Draws a line.

Parameters:

x1 - The x coordinate of the first point of the line.

y1 - The y coordinate of the first point of the line.

x2 - The x coordinate of the second point of the line.

y2 - The y coordinate of the second point of the line.

paint - Determines the appearance of the line

drawCurve

public void drawCurve(float x0,
                      float y0,
                      float x1,
                      float y1,
                      float x2,
                      float y2,
                      float x3,
                      float y3,
                      PDFPaint paint)

Draws a bezier curve.

The arc extends from point x0,y0 to point x3,y3 with control points x1,y1 and x2,y2 respectively. The color, width, and style are determined by paint.

Parameters:

x0 - The x coordinate of the initial point.

y0 - The y coordinate of the initial point.

x1 - The x coordinate of the first control point.

y1 - The y coordinate of the first control point.

x2 - The x coordinate of the second control point.

y2 - The y coordinate of the second control point.

x3 - The x coordinate of the third control point.

y3 - The y coordinate of the third control point.

paint - determines the appearance of the arc

drawPath

public void drawPath(PDFPath path,
                     PDFPaint paint)

Draws a path

Parameters:

path - The path to be drawn

paint - Determines the appearance of the path

drawText

public void drawText(java.lang.String str,
                     int textColor,
                     float x,
                     float y,
                     PDFFont font)
              throws PDFException

Draws some text

Parameters:

str - The String to be drawn

textColor - The Color to use for the string

x - The x coordinate of the point to start drawing text

y - The y coordinate of the point to start drawing text

font - The font to use for the text

Throws:

PDFException

drawBitmap

public void drawBitmap(Bitmap bitmap,
                       int x,
                       int y,
                       ImageParam params)
                throws PDFException

Draws a Bitmap

Parameters:

bitmap - The bitmap to draw

x - The x coordinate of the location to start the bitmap

y - The y coordinate of the location to start the bitmap

params - Determines the compression type and quality. (may be null)

Throws:

PDFException

drawBitmap

public void drawBitmap(Bitmap bitmap,
                       int x,
                       int y,
                       float width,
                       float height,
                       ImageParam params)
                throws PDFException

Draws a Bitmap

Parameters:

bitmap - The bitmap to draw

x - The x coordinate of the location to start the bitmap

y - The y coordinate of the location to start the bitmap

width - The destination width of the bitmap

height - The destination width of the bitmap

params - Determines the compression type and quality.

Throws:

PDFException

drawBitmap

public void drawBitmap(Bitmap bitmap,
                       int x,
                       int y,
                       float width,
                       float height,
                       ImageParam params,
                       int alpha)
                throws PDFException

Draws a Bitmap

Parameters:

bitmap - The bitmap to draw

x - The x coordinate of the location to start the bitmap

y - The y coordinate of the location to start the bitmap

width - The destination width of the bitmap

height - The destination width of the bitmap

params - Determines the compression type and quality.

Alpha - value from 0-255

Throws:

PDFException

drawBitmap

public void drawBitmap(Bitmap bitmap,
                       Matrix matrix,
                       ImageParam params)
                throws PDFException

Draws a Bitmap, using the matrix to determine the bitmap

Parameters:

bitmap - The bitmap to draw

matrix - Translates the bitmap when drawn

params - Determines the compression type and quality.

Throws:

PDFException

drawBitmap

public void drawBitmap(Bitmap bitmap,
                       Matrix matrix,
                       ImageParam params,
                       int alpha)
                throws PDFException

Draws a Bitmap, using the matrix to determine the bitmap

Parameters:

bitmap - The bitmap to draw

matrix - Translates the bitmap when drawn

params - Determines the compression type and quality.

Alpha - value from 0-255

Throws:

PDFException

setCanvasMatrix

public void setCanvasMatrix(Matrix matrix)

Sets the current transformation matrix

Parameters:

matrix - The new matrix

concatCanvasMatrix

public void concatCanvasMatrix(Matrix matrix)

Concats the current matrix with the parameter.

Parameters:

matrix - The matrix to concat

getCanvasMatrix

public Matrix getCanvasMatrix()

Returns the current transformation matrix.