org.apache.fop.render.ps

Class PSGraphicsPainter

java.lang.Object

org.apache.fop.render.ps.PSGraphicsPainter

All Implemented Interfaces:

BezierCurvePainter, GraphicsPainter

public class PSGraphicsPainter
extends Object
implements GraphicsPainter, BezierCurvePainter

PostScript-specific implementation of the BorderPainter.

Constructor Summary

Constructors

Constructor and Description
PSGraphicsPainter(org.apache.xmlgraphics.ps.PSGenerator generator) Creates a new border painter for PostScript.

Method Summary

Methods

Modifier and Type	Method and Description
void	arcTo(double startAngle, double endAngle, int cx, int cy, int width, int height) Draws an arc on the ellipse centered at (cx, cy) with width width and height height from start angle startAngle (with respect to the x-axis counter-clockwise) to the end angle endAngle.
void	clip() Reduces the current clipping region to the current path.
void	closePath() Closes the current path.
void	cubicBezierTo(int p1x, int p1y, int p2x, int p2y, int p3x, int p3y) Draw a cubic bezier from current position to (p3x, p3y) using the control points (p1x, p1y) and (p2x, p2y)
void	drawBorderLine(int x1, int y1, int x2, int y2, boolean horz, boolean startOrBefore, int style, Color col) Draws a border line.
static void	drawBorderLine(org.apache.xmlgraphics.ps.PSGenerator gen, float x1, float y1, float x2, float y2, boolean horz, boolean startOrBefore, int style, Color col)
void	drawLine(Point start, Point end, int width, Color color, RuleStyle style) Draws a line/rule.
void	lineTo(int x, int y) Draws a line from the current cursor position to the given coordinates.
void	moveTo(int x, int y) Moves the cursor to the given coordinate.
void	restoreGraphicsState() Restore the last graphics state from the stack.
void	rotateCoordinates(double angle) Rotate the coordinate frame
void	saveGraphicsState() Save the graphics state on the stack.
void	scaleCoordinates(float xScale, float yScale) Scale the coordinate frame
void	translateCoordinates(int xTranslate, int yTranslate) Translate the coordinate frame

Methods inherited from class java.lang.Object

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

Constructor Detail

PSGraphicsPainter

public PSGraphicsPainter(org.apache.xmlgraphics.ps.PSGenerator generator)

Creates a new border painter for PostScript.

Parameters:

generator - the PostScript generator

Method Detail

drawBorderLine

public void drawBorderLine(int x1,
                  int y1,
                  int x2,
                  int y2,
                  boolean horz,
                  boolean startOrBefore,
                  int style,
                  Color col)
                    throws IOException

Draws a border line.

Specified by:

drawBorderLine in interface GraphicsPainter

Parameters:

x1 - X coordinate of the upper left corner of the line's bounding rectangle (in millipoints)

y1 - start Y coordinate of the upper left corner of the line's bounding rectangle (in millipoints)

x2 - end X coordinate of the lower right corner of the line's bounding rectangle (in millipoints)

y2 - end y coordinate of the lower right corner of the line's bounding rectangle (in millipoints)

horz - true if it is a horizontal line

startOrBefore - true if the line is the start or end edge of a border box

style - the border style

col - the border color

Throws:

IOException - if an I/O error occurs

drawBorderLine

public static void drawBorderLine(org.apache.xmlgraphics.ps.PSGenerator gen,
                  float x1,
                  float y1,
                  float x2,
                  float y2,
                  boolean horz,
                  boolean startOrBefore,
                  int style,
                  Color col)
                           throws IOException

Throws:

IOException

drawLine

public void drawLine(Point start,
            Point end,
            int width,
            Color color,
            RuleStyle style)
              throws IOException

Draws a line/rule.

Specified by:

drawLine in interface GraphicsPainter

Parameters:

start - start point (coordinates in millipoints)

end - end point (coordinates in millipoints)

width - width of the line

color - the line color

style - the rule style

Throws:

IOException - if an I/O error occurs

moveTo

public void moveTo(int x,
          int y)
            throws IOException

Moves the cursor to the given coordinate.

Specified by:

moveTo in interface GraphicsPainter

Parameters:

x - the X coordinate (in millipoints)

y - the Y coordinate (in millipoints)

Throws:

IOException - if an I/O error occurs

lineTo

public void lineTo(int x,
          int y)
            throws IOException

Draws a line from the current cursor position to the given coordinates.

Specified by:

lineTo in interface GraphicsPainter

Parameters:

x - the X coordinate (in millipoints)

y - the Y coordinate (in millipoints)

Throws:

IOException - if an I/O error occurs

arcTo

public void arcTo(double startAngle,
         double endAngle,
         int cx,
         int cy,
         int width,
         int height)
           throws IOException

Draws an arc on the ellipse centered at (cx, cy) with width width and height height from start angle startAngle (with respect to the x-axis counter-clockwise) to the end angle endAngle. The ellipses major axis are assumed to coincide with the coordinate axis. The current position MUST coincide with the starting position on the ellipse.

Specified by:

arcTo in interface GraphicsPainter

Parameters:

startAngle - the start angle

endAngle - the end angle

cx - the x coordinate of the ellipse center

cy - the y coordinate of the ellipse center

width - the extent of the ellipse in the x direction

height - the extent of the ellipse in the y direction

Throws:

IOException - if an I/O error occurs

closePath

public void closePath()
               throws IOException

Closes the current path.

Specified by:

closePath in interface GraphicsPainter

Throws:

IOException - if an I/O error occurs

clip

public void clip()
          throws IOException

Reduces the current clipping region to the current path.

Specified by:

clip in interface GraphicsPainter

Throws:

IOException - if an I/O error occurs

saveGraphicsState

public void saveGraphicsState()
                       throws IOException

Save the graphics state on the stack.

Specified by:

saveGraphicsState in interface GraphicsPainter

Throws:

IOException - if an I/O error occurs

restoreGraphicsState

public void restoreGraphicsState()
                          throws IOException

Restore the last graphics state from the stack.

Specified by:

restoreGraphicsState in interface GraphicsPainter

Throws:

IOException - if an I/O error occurs

rotateCoordinates

public void rotateCoordinates(double angle)
                       throws IOException

Rotate the coordinate frame

Specified by:

rotateCoordinates in interface GraphicsPainter

Parameters:

angle - angle in radians to rotate the coordinate frame

Throws:

IOException - if an I/O error occurs

translateCoordinates

public void translateCoordinates(int xTranslate,
                        int yTranslate)
                          throws IOException

Translate the coordinate frame

Specified by:

translateCoordinates in interface GraphicsPainter

Parameters:

xTranslate - translation in the x direction

yTranslate - translation in the y direction

Throws:

IOException - if an I/O error occurs

scaleCoordinates

public void scaleCoordinates(float xScale,
                    float yScale)
                      throws IOException

Scale the coordinate frame

Specified by:

scaleCoordinates in interface GraphicsPainter

Parameters:

xScale - scale factor in the x direction

yScale - scale factor in the y direction

Throws:

IOException - if an I/O error occurs

cubicBezierTo

public void cubicBezierTo(int p1x,
                 int p1y,
                 int p2x,
                 int p2y,
                 int p3x,
                 int p3y)
                   throws IOException

Draw a cubic bezier from current position to (p3x, p3y) using the control points (p1x, p1y) and (p2x, p2y)

Specified by:

cubicBezierTo in interface BezierCurvePainter

Parameters:

p1x - x coordinate of the first control point

p1y - y coordinate of the first control point

p2x - x coordinate of the second control point

p2y - y coordinate of the second control point

p3x - x coordinate of the end point

p3y - y coordinate of the end point

Throws:

IOException - if an I/O error occurs