File	Doc	Category	Size	Date	Package
TileSink.java	API Doc	phoneME MR2 API (J2ME)	7332	Wed May 02 18:00:34 BST 2007	com.sun.perseus.j2d

TileSink

• java.lang.Object
  • com.sun.pisces.PathSink

Fields Summary
protected int	minX The minimum x coordinate in S15.16 format.
protected int	minY The minimum y coordinate in S15.16 format.
protected int	maxX The maximum x coordinate in S15.16 format.
protected int	maxY The maximum y coordinate in S15.16 format.

Constructors Summary

Methods Summary
void	checkPoint(int x0, int y0) Checks whether this point falls within the current region. If not, adjusts minX, minY, maxX, maxY. if (x0 < minX) { minX = x0; } else if (x0 > maxX) { maxX = x0; } if (y0 < minY) { minY = y0; } else if (y0 > maxY) { maxY = y0; }
public void	close() Closes the current path by drawing a line from the current drawing position to the point specified by the moset recent moveTo command.
public void	cubicTo(int x1, int y1, int x2, int y2, int x3, int y3) Draws a cubic Bezier curve starting at the current drawing position and ending at the point (x3, y3) according to the formulas: x(t) = (1 - t)^3*x0 + 3*(1 - t)^2*t*x1 + 3*(1 - t)*t^2*x2 + t^3*x3 y(t) = (1 - t)^3*y0 + 3*(1 - t)^2*t*y1 + 3*(1 - t)*t^2*y2 + t^3*x3 0 <= t <= 1 where (x0, y0) is the current drawing position. Finally, the current drawing position is set to (x3, y3). param x1 the X coordinate of the first control point in S15.16 format param y1 the Y coordinate of the first control point in S15.16 format param x2 the X coordinate of the second control point in S15.16 format param y2 the Y coordinate of the second control point in S15.16 format param x3 the final X coordinate in S15.16 format param y3 the final Y coordinate in S15.16 format checkPoint(x1, y1); checkPoint(x2, y2); checkPoint(x3, y3);
public void	end() Ends the current path. It may be necessary to end a path in order to allow end caps to be drawn.
public void	lineJoin() Provides a hint that the current segment should be joined to the following segment using an explicit miter or round join if required. An application-generated path will generally have no need to contain calls to this method; they are typically introduced by a Flattener to mark segment divisions that appear in its input, and consumed by a Stroker that is responsible for emitting the miter or round join segments. Other LineSink classes should simply pass this hint to their output sink as needed.
public void	lineTo(int x1, int y1) Draws a line from the current drawing position to the point (x1, y1) and sets the current drawing position to (x1, y1). param x1 the X coordinate in S15.16 format param y1 the Y coordinate in S15.16 format checkPoint(x1, y1);
public void	moveTo(int x0, int y0) Moves the current drawing position to the point (x0, y0). param x0 the X coordinate in S15.16 format param y0 the Y coordinate in S15.16 format checkPoint(x0, y0);
public void	quadTo(int x1, int y1, int x2, int y2) Draws a quadratic Bezier curve starting at the current drawing position and ending at the point (x2, y2) according to the formulas: x(t) = (1 - t)^2*x0 + 2*(1 - t)*t*x1 + t^2*x2 y(t) = (1 - t)^2*y0 + 2*(1 - t)*t*y1 + t^2*x2 0 <= t <= 1 where (x0, y0) is the current drawing position. Finally, the current drawing position is set to (x2, y2). param x1 the X coordinate of the control point in S15.16 format param y1 the Y coordinate of the control point in S15.16 format param x2 the final X coordinate in S15.16 format param y2 the final Y coordinate in S15.16 format checkPoint(x1, y1); checkPoint(x2, y2);
public void	reset() Resets the bounds to their initial values. minX = Integer.MAX_VALUE; minY = Integer.MAX_VALUE; maxX = Integer.MIN_VALUE; maxY = Integer.MIN_VALUE;
public void	setTile(Tile tile) Sets the tile to the current values. param tile the tile to set. tile.x = minX >> 16; tile.y = minY >> 16; tile.maxX = (maxX >> 16) - 1; tile.maxY = (maxY >> 16) - 1; // Precision adjustments. // If x and y are positive, then, the int value for minX is // smaller than or equal to the fixed point value, so there // is no adjustment needed. // If x and y are netative, then, the int value for minX is // greater than the fixed point value. We need to be at least // as large as the bounds, so we decrease the value by one // to encompass the origin. if (minX < 0 && (minX & 0xffff) != 0) { tile.x -= 1; } if (minY < 0 && (minX & 0xffff) != 0) { tile.y -= 1; } // If there is a fractional part in the maxX and maxY values, // we adjust them to be at least as big as the rendering area. if (maxX > 0 && (maxX & 0xffff) != 0) { tile.maxX += 1; } if (maxY > 0 && (maxY & 0xffff) != 0) { tile.maxY += 1; }