diff options
Diffstat (limited to 'tools/layoutlib/bridge/src/android/graphics/Path.java')
| -rw-r--r-- | tools/layoutlib/bridge/src/android/graphics/Path.java | 611 |
1 files changed, 0 insertions, 611 deletions
diff --git a/tools/layoutlib/bridge/src/android/graphics/Path.java b/tools/layoutlib/bridge/src/android/graphics/Path.java deleted file mode 100644 index 12d2cde..0000000 --- a/tools/layoutlib/bridge/src/android/graphics/Path.java +++ /dev/null @@ -1,611 +0,0 @@ -/* - * Copyright (C) 2006 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package android.graphics; - -import java.awt.Shape; -import java.awt.geom.AffineTransform; -import java.awt.geom.Ellipse2D; -import java.awt.geom.GeneralPath; -import java.awt.geom.PathIterator; -import java.awt.geom.Rectangle2D; - -/** - * The Path class encapsulates compound (multiple contour) geometric paths - * consisting of straight line segments, quadratic curves, and cubic curves. - * It can be drawn with canvas.drawPath(path, paint), either filled or stroked - * (based on the paint's Style), or it can be used for clipping or to draw - * text on a path. - */ -public class Path { - - private FillType mFillType = FillType.WINDING; - private GeneralPath mPath = new GeneralPath(); - - private float mLastX = 0; - private float mLastY = 0; - - //---------- Custom methods ---------- - - public Shape getAwtShape() { - return mPath; - } - - //---------- - - /** - * Create an empty path - */ - public Path() { - } - - /** - * Create a new path, copying the contents from the src path. - * - * @param src The path to copy from when initializing the new path - */ - public Path(Path src) { - mPath.append(src.mPath, false /* connect */); - } - - /** - * Clear any lines and curves from the path, making it empty. - * This does NOT change the fill-type setting. - */ - public void reset() { - mPath = new GeneralPath(); - } - - /** - * Rewinds the path: clears any lines and curves from the path but - * keeps the internal data structure for faster reuse. - */ - public void rewind() { - // FIXME - throw new UnsupportedOperationException(); - } - - /** Replace the contents of this with the contents of src. - */ - public void set(Path src) { - mPath.append(src.mPath, false /* connect */); - } - - /** Enum for the ways a path may be filled - */ - public enum FillType { - // these must match the values in SkPath.h - WINDING (GeneralPath.WIND_NON_ZERO, false), - EVEN_ODD (GeneralPath.WIND_EVEN_ODD, false), - INVERSE_WINDING (GeneralPath.WIND_NON_ZERO, true), - INVERSE_EVEN_ODD(GeneralPath.WIND_EVEN_ODD, true); - - FillType(int rule, boolean inverse) { - this.rule = rule; - this.inverse = inverse; - } - - final int rule; - final boolean inverse; - } - - /** - * Return the path's fill type. This defines how "inside" is - * computed. The default value is WINDING. - * - * @return the path's fill type - */ - public FillType getFillType() { - return mFillType; - } - - /** - * Set the path's fill type. This defines how "inside" is computed. - * - * @param ft The new fill type for this path - */ - public void setFillType(FillType ft) { - mFillType = ft; - mPath.setWindingRule(ft.rule); - } - - /** - * Returns true if the filltype is one of the INVERSE variants - * - * @return true if the filltype is one of the INVERSE variants - */ - public boolean isInverseFillType() { - return mFillType.inverse; - } - - /** - * Toggles the INVERSE state of the filltype - */ - public void toggleInverseFillType() { - switch (mFillType) { - case WINDING: - mFillType = FillType.INVERSE_WINDING; - break; - case EVEN_ODD: - mFillType = FillType.INVERSE_EVEN_ODD; - break; - case INVERSE_WINDING: - mFillType = FillType.WINDING; - break; - case INVERSE_EVEN_ODD: - mFillType = FillType.EVEN_ODD; - break; - } - } - - /** - * Returns true if the path is empty (contains no lines or curves) - * - * @return true if the path is empty (contains no lines or curves) - */ - public boolean isEmpty() { - return mPath.getCurrentPoint() == null; - } - - /** - * Returns true if the path specifies a rectangle. If so, and if rect is - * not null, set rect to the bounds of the path. If the path does not - * specify a rectangle, return false and ignore rect. - * - * @param rect If not null, returns the bounds of the path if it specifies - * a rectangle - * @return true if the path specifies a rectangle - */ - public boolean isRect(RectF rect) { - // FIXME - throw new UnsupportedOperationException(); - } - - /** - * Compute the bounds of the path, and write the answer into bounds. If the - * path contains 0 or 1 points, the bounds is set to (0,0,0,0) - * - * @param bounds Returns the computed bounds of the path - * @param exact If true, return the exact (but slower) bounds, else return - * just the bounds of all control points - */ - public void computeBounds(RectF bounds, boolean exact) { - Rectangle2D rect = mPath.getBounds2D(); - bounds.left = (float)rect.getMinX(); - bounds.right = (float)rect.getMaxX(); - bounds.top = (float)rect.getMinY(); - bounds.bottom = (float)rect.getMaxY(); - } - - /** - * Hint to the path to prepare for adding more points. This can allow the - * path to more efficiently allocate its storage. - * - * @param extraPtCount The number of extra points that may be added to this - * path - */ - public void incReserve(int extraPtCount) { - // pass - } - - /** - * Set the beginning of the next contour to the point (x,y). - * - * @param x The x-coordinate of the start of a new contour - * @param y The y-coordinate of the start of a new contour - */ - public void moveTo(float x, float y) { - mPath.moveTo(mLastX = x, mLastY = y); - } - - /** - * Set the beginning of the next contour relative to the last point on the - * previous contour. If there is no previous contour, this is treated the - * same as moveTo(). - * - * @param dx The amount to add to the x-coordinate of the end of the - * previous contour, to specify the start of a new contour - * @param dy The amount to add to the y-coordinate of the end of the - * previous contour, to specify the start of a new contour - */ - public void rMoveTo(float dx, float dy) { - dx += mLastX; - dy += mLastY; - mPath.moveTo(mLastX = dx, mLastY = dy); - } - - /** - * Add a line from the last point to the specified point (x,y). - * If no moveTo() call has been made for this contour, the first point is - * automatically set to (0,0). - * - * @param x The x-coordinate of the end of a line - * @param y The y-coordinate of the end of a line - */ - public void lineTo(float x, float y) { - mPath.lineTo(mLastX = x, mLastY = y); - } - - /** - * Same as lineTo, but the coordinates are considered relative to the last - * point on this contour. If there is no previous point, then a moveTo(0,0) - * is inserted automatically. - * - * @param dx The amount to add to the x-coordinate of the previous point on - * this contour, to specify a line - * @param dy The amount to add to the y-coordinate of the previous point on - * this contour, to specify a line - */ - public void rLineTo(float dx, float dy) { - if (isEmpty()) { - mPath.moveTo(mLastX = 0, mLastY = 0); - } - dx += mLastX; - dy += mLastY; - mPath.lineTo(mLastX = dx, mLastY = dy); - } - - /** - * Add a quadratic bezier from the last point, approaching control point - * (x1,y1), and ending at (x2,y2). If no moveTo() call has been made for - * this contour, the first point is automatically set to (0,0). - * - * @param x1 The x-coordinate of the control point on a quadratic curve - * @param y1 The y-coordinate of the control point on a quadratic curve - * @param x2 The x-coordinate of the end point on a quadratic curve - * @param y2 The y-coordinate of the end point on a quadratic curve - */ - public void quadTo(float x1, float y1, float x2, float y2) { - mPath.quadTo(x1, y1, mLastX = x2, mLastY = y2); - } - - /** - * Same as quadTo, but the coordinates are considered relative to the last - * point on this contour. If there is no previous point, then a moveTo(0,0) - * is inserted automatically. - * - * @param dx1 The amount to add to the x-coordinate of the last point on - * this contour, for the control point of a quadratic curve - * @param dy1 The amount to add to the y-coordinate of the last point on - * this contour, for the control point of a quadratic curve - * @param dx2 The amount to add to the x-coordinate of the last point on - * this contour, for the end point of a quadratic curve - * @param dy2 The amount to add to the y-coordinate of the last point on - * this contour, for the end point of a quadratic curve - */ - public void rQuadTo(float dx1, float dy1, float dx2, float dy2) { - if (isEmpty()) { - mPath.moveTo(mLastX = 0, mLastY = 0); - } - dx1 += mLastX; - dy1 += mLastY; - dx2 += mLastX; - dy2 += mLastY; - mPath.quadTo(dx1, dy1, mLastX = dx2, mLastY = dy2); - } - - /** - * Add a cubic bezier from the last point, approaching control points - * (x1,y1) and (x2,y2), and ending at (x3,y3). If no moveTo() call has been - * made for this contour, the first point is automatically set to (0,0). - * - * @param x1 The x-coordinate of the 1st control point on a cubic curve - * @param y1 The y-coordinate of the 1st control point on a cubic curve - * @param x2 The x-coordinate of the 2nd control point on a cubic curve - * @param y2 The y-coordinate of the 2nd control point on a cubic curve - * @param x3 The x-coordinate of the end point on a cubic curve - * @param y3 The y-coordinate of the end point on a cubic curve - */ - public void cubicTo(float x1, float y1, float x2, float y2, - float x3, float y3) { - mPath.curveTo(x1, y1, x2, y2, mLastX = x3, mLastY = y3); - } - - /** - * Same as cubicTo, but the coordinates are considered relative to the - * current point on this contour. If there is no previous point, then a - * moveTo(0,0) is inserted automatically. - */ - public void rCubicTo(float dx1, float dy1, float dx2, float dy2, - float dx3, float dy3) { - if (isEmpty()) { - mPath.moveTo(mLastX = 0, mLastY = 0); - } - dx1 += mLastX; - dy1 += mLastY; - dx2 += mLastX; - dy2 += mLastY; - dx3 += mLastX; - dy3 += mLastY; - mPath.curveTo(dx1, dy1, dx2, dy2, mLastX = dx3, mLastY = dy3); - } - - /** - * Append the specified arc to the path as a new contour. If the start of - * the path is different from the path's current last point, then an - * automatic lineTo() is added to connect the current contour to the - * start of the arc. However, if the path is empty, then we call moveTo() - * with the first point of the arc. The sweep angle is tread mod 360. - * - * @param oval The bounds of oval defining shape and size of the arc - * @param startAngle Starting angle (in degrees) where the arc begins - * @param sweepAngle Sweep angle (in degrees) measured clockwise, treated - * mod 360. - * @param forceMoveTo If true, always begin a new contour with the arc - */ - public void arcTo(RectF oval, float startAngle, float sweepAngle, - boolean forceMoveTo) { - throw new UnsupportedOperationException(); - } - - /** - * Append the specified arc to the path as a new contour. If the start of - * the path is different from the path's current last point, then an - * automatic lineTo() is added to connect the current contour to the - * start of the arc. However, if the path is empty, then we call moveTo() - * with the first point of the arc. - * - * @param oval The bounds of oval defining shape and size of the arc - * @param startAngle Starting angle (in degrees) where the arc begins - * @param sweepAngle Sweep angle (in degrees) measured clockwise - */ - public void arcTo(RectF oval, float startAngle, float sweepAngle) { - throw new UnsupportedOperationException(); - } - - /** - * Close the current contour. If the current point is not equal to the - * first point of the contour, a line segment is automatically added. - */ - public void close() { - mPath.closePath(); - } - - /** - * Specifies how closed shapes (e.g. rects, ovals) are oriented when they - * are added to a path. - */ - public enum Direction { - /** clockwise */ - CW (0), // must match enum in SkPath.h - /** counter-clockwise */ - CCW (1); // must match enum in SkPath.h - - Direction(int ni) { - nativeInt = ni; - } - final int nativeInt; - } - - /** - * Add a closed rectangle contour to the path - * - * @param rect The rectangle to add as a closed contour to the path - * @param dir The direction to wind the rectangle's contour - */ - public void addRect(RectF rect, Direction dir) { - if (rect == null) { - throw new NullPointerException("need rect parameter"); - } - - addRect(rect.left, rect.top, rect.right, rect.bottom, dir); - } - - /** - * Add a closed rectangle contour to the path - * - * @param left The left side of a rectangle to add to the path - * @param top The top of a rectangle to add to the path - * @param right The right side of a rectangle to add to the path - * @param bottom The bottom of a rectangle to add to the path - * @param dir The direction to wind the rectangle's contour - */ - public void addRect(float left, float top, float right, float bottom, - Direction dir) { - moveTo(left, top); - - switch (dir) { - case CW: - lineTo(right, top); - lineTo(right, bottom); - lineTo(left, bottom); - break; - case CCW: - lineTo(left, bottom); - lineTo(right, bottom); - lineTo(right, top); - break; - } - - close(); - } - - /** - * Add a closed oval contour to the path - * - * @param oval The bounds of the oval to add as a closed contour to the path - * @param dir The direction to wind the oval's contour - */ - public void addOval(RectF oval, Direction dir) { - if (oval == null) { - throw new NullPointerException("need oval parameter"); - } - - // FIXME Need to support direction - Ellipse2D ovalShape = new Ellipse2D.Float(oval.left, oval.top, oval.width(), oval.height()); - - mPath.append(ovalShape, false /* connect */); - } - - /** - * Add a closed circle contour to the path - * - * @param x The x-coordinate of the center of a circle to add to the path - * @param y The y-coordinate of the center of a circle to add to the path - * @param radius The radius of a circle to add to the path - * @param dir The direction to wind the circle's contour - */ - public void addCircle(float x, float y, float radius, Direction dir) { - // FIXME - throw new UnsupportedOperationException(); - } - - /** - * Add the specified arc to the path as a new contour. - * - * @param oval The bounds of oval defining the shape and size of the arc - * @param startAngle Starting angle (in degrees) where the arc begins - * @param sweepAngle Sweep angle (in degrees) measured clockwise - */ - public void addArc(RectF oval, float startAngle, float sweepAngle) { - if (oval == null) { - throw new NullPointerException("need oval parameter"); - } - // FIXME - throw new UnsupportedOperationException(); - } - - /** - * Add a closed round-rectangle contour to the path - * - * @param rect The bounds of a round-rectangle to add to the path - * @param rx The x-radius of the rounded corners on the round-rectangle - * @param ry The y-radius of the rounded corners on the round-rectangle - * @param dir The direction to wind the round-rectangle's contour - */ - public void addRoundRect(RectF rect, float rx, float ry, Direction dir) { - if (rect == null) { - throw new NullPointerException("need rect parameter"); - } - // FIXME - throw new UnsupportedOperationException(); - } - - /** - * Add a closed round-rectangle contour to the path. Each corner receives - * two radius values [X, Y]. The corners are ordered top-left, top-right, - * bottom-right, bottom-left - * - * @param rect The bounds of a round-rectangle to add to the path - * @param radii Array of 8 values, 4 pairs of [X,Y] radii - * @param dir The direction to wind the round-rectangle's contour - */ - public void addRoundRect(RectF rect, float[] radii, Direction dir) { - if (rect == null) { - throw new NullPointerException("need rect parameter"); - } - if (radii.length < 8) { - throw new ArrayIndexOutOfBoundsException("radii[] needs 8 values"); - } - // FIXME - throw new UnsupportedOperationException(); - } - - /** - * Add a copy of src to the path, offset by (dx,dy) - * - * @param src The path to add as a new contour - * @param dx The amount to translate the path in X as it is added - */ - public void addPath(Path src, float dx, float dy) { - PathIterator iterator = src.mPath.getPathIterator(new AffineTransform(0, 0, dx, 0, 0, dy)); - mPath.append(iterator, false /* connect */); - } - - /** - * Add a copy of src to the path - * - * @param src The path that is appended to the current path - */ - public void addPath(Path src) { - addPath(src, 0, 0); - } - - /** - * Add a copy of src to the path, transformed by matrix - * - * @param src The path to add as a new contour - */ - public void addPath(Path src, Matrix matrix) { - // FIXME - throw new UnsupportedOperationException(); - } - - /** - * Offset the path by (dx,dy), returning true on success - * - * @param dx The amount in the X direction to offset the entire path - * @param dy The amount in the Y direction to offset the entire path - * @param dst The translated path is written here. If this is null, then - * the original path is modified. - */ - public void offset(float dx, float dy, Path dst) { - GeneralPath newPath = new GeneralPath(); - - PathIterator iterator = mPath.getPathIterator(new AffineTransform(0, 0, dx, 0, 0, dy)); - - newPath.append(iterator, false /* connect */); - - if (dst != null) { - dst.mPath = newPath; - } else { - mPath = newPath; - } - } - - /** - * Offset the path by (dx,dy), returning true on success - * - * @param dx The amount in the X direction to offset the entire path - * @param dy The amount in the Y direction to offset the entire path - */ - public void offset(float dx, float dy) { - offset(dx, dy, null /* dst */); - } - - /** - * Sets the last point of the path. - * - * @param dx The new X coordinate for the last point - * @param dy The new Y coordinate for the last point - */ - public void setLastPoint(float dx, float dy) { - mLastX = dx; - mLastY = dy; - } - - /** - * Transform the points in this path by matrix, and write the answer - * into dst. If dst is null, then the the original path is modified. - * - * @param matrix The matrix to apply to the path - * @param dst The transformed path is written here. If dst is null, - * then the the original path is modified - */ - public void transform(Matrix matrix, Path dst) { - // FIXME - throw new UnsupportedOperationException(); - } - - /** - * Transform the points in this path by matrix. - * - * @param matrix The matrix to apply to the path - */ - public void transform(Matrix matrix) { - transform(matrix, null /* dst */); - } -} |