Package org.apache.fop.render.intermediate

Interface GraphicsPainter

All Known Implementing Classes:
PDFGraphicsPainter, PSGraphicsPainter
public interface GraphicsPainter
Used primarily by BorderPainter, implementations are created for rendering primitive graphical operations.

  • Method Summary

    Modifier and Type
    Method
    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
    drawBorderLine(int x1, int y1, int x2, int y2, boolean horz, boolean startOrBefore, int style, Color color)
    Draws a border line.
    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

  • Method Details

    • drawBorderLine

      void drawBorderLine(int x1, int y1, int x2, int y2, boolean horz, boolean startOrBefore, int style, Color color) throws IOException
      Draws a border line.
      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
      color - the border color
      Throws:
      IOException - if an I/O error occurs

    • drawLine

      void drawLine(Point start, Point end, int width, Color color, RuleStyle style) throws IOException
      Draws a line/rule.
      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

      void moveTo(int x, int y) throws IOException
      Moves the cursor to the given coordinate.
      Parameters:
      x - the X coordinate (in millipoints)
      y - the Y coordinate (in millipoints)
      Throws:
      IOException - if an I/O error occurs

    • lineTo

      void lineTo(int x, int y) throws IOException
      Draws a line from the current cursor position to the given coordinates.
      Parameters:
      x - the X coordinate (in millipoints)
      y - the Y coordinate (in millipoints)
      Throws:
      IOException - if an I/O error occurs

    • arcTo

      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.
      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

    • rotateCoordinates

      void rotateCoordinates(double angle) throws IOException
      Rotate the coordinate frame
      Parameters:
      angle - angle in radians to rotate the coordinate frame
      Throws:
      IOException - if an I/O error occurs

    • translateCoordinates

      void translateCoordinates(int xTranslate, int yTranslate) throws IOException
      Translate the coordinate frame
      Parameters:
      xTranslate - translation in the x direction
      yTranslate - translation in the y direction
      Throws:
      IOException - if an I/O error occurs

    • scaleCoordinates

      void scaleCoordinates(float xScale, float yScale) throws IOException
      Scale the coordinate frame
      Parameters:
      xScale - scale factor in the x direction
      yScale - scale factor in the y direction
      Throws:
      IOException - if an I/O error occurs

    • closePath

      void closePath() throws IOException
      Closes the current path.
      Throws:
      IOException - if an I/O error occurs

    • clip

      void clip() throws IOException
      Reduces the current clipping region to the current path.
      Throws:
      IOException - if an I/O error occurs

    • saveGraphicsState

      void saveGraphicsState() throws IOException
      Save the graphics state on the stack.
      Throws:
      IOException - if an I/O error occurs

    • restoreGraphicsState

      void restoreGraphicsState() throws IOException
      Restore the last graphics state from the stack.
      Throws:
      IOException - if an I/O error occurs