Framework {@link android.graphics.drawable.VectorDrawable} if running lollipop or later.
+ *{@link com.telly.mrvector.VectorDrawable} otherwise.
+ * + * @see #inflateCompatOnly(android.content.res.Resources, int) + */ + public static Drawable inflate(Resources resources, @DrawableRes int resId) { + if (LOLLIPOP_PLUS) { + return resources.getDrawable(resId); + } else { + return inflateCompatOnly(resources, resId); + } + } + + /** + * Inflates aInflated instance of {@link com.telly.mrvector.VectorDrawable}.
+ * + * @see #inflate(android.content.res.Resources, int) + */ + public static Drawable inflateCompatOnly(Resources resources, @DrawableRes int resId) { + return VectorDrawable.create(resources, resId); + } + + private static IntSet sVectorResources; + public static void register(@DrawableRes int... resources) { + if (resources == null || resources.length < 1) { + return; + } + if (sVectorResources == null) { + sVectorResources = new IntSet(resources.length); + } + sVectorResources.addAll(resources); + } + + public static Context wrap(Context context) { + return new MrResourcesContext(context); + } + + static class MrResourcesContext extends ContextWrapper { + private MrResources mMrResources; + public MrResourcesContext(Context base) { + super(base); + } + + @Override + public Resources getResources() { + final Resources superResources = super.getResources(); + if (mMrResources == null || mMrResources.oldFor(superResources)) { + mMrResources = new MrResources(superResources); + } + return mMrResources; + } + } + + /** + * @hide + */ + public static Drawable lookup(Resources res, int id, int density, boolean ignoreDensity) { + Log.d(VectorDrawable.LOGTAG, "Looking up res " + id); + if (sVectorResources == null || !sVectorResources.contains(id)) { + Log.d(VectorDrawable.LOGTAG, "Could not find res " + id); + return null; + } + // TODO support density + Log.d(VectorDrawable.LOGTAG, "Inflating res " + id); + return inflateCompatOnly(res, id); + } + +} diff --git a/library/src/main/java/com/telly/mrvector/PathParser.java b/library/src/main/java/com/telly/mrvector/PathParser.java new file mode 100644 index 0000000..e5220e0 --- /dev/null +++ b/library/src/main/java/com/telly/mrvector/PathParser.java @@ -0,0 +1,654 @@ +/* + * Copyright (C) 2014 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 com.telly.mrvector; + +import android.annotation.TargetApi; +import android.graphics.Path; +import android.util.Log; + +import java.util.ArrayList; +import java.util.Arrays; + +import static android.os.Build.VERSION_CODES.LOLLIPOP; + +/** + * @hide + */ +@TargetApi(LOLLIPOP) +public class PathParser { + static final String LOGTAG = PathParser.class.getSimpleName(); + + /** + * @param pathData The string representing a path, the same as "d" string in svg file. + * @return the generated Path object. + */ + public static Path createPathFromPathData(String pathData) { + Path path = new Path(); + PathDataNode[] nodes = createNodesFromPathData(pathData); + if (nodes != null) { + PathDataNode.nodesToPath(nodes, path); + return path; + } + return null; + } + + /** + * @param pathData The string representing a path, the same as "d" string in svg file. + * @return an array of the PathDataNode. + */ + public static PathDataNode[] createNodesFromPathData(String pathData) { + if (pathData == null) { + return null; + } + int start = 0; + int end = 1; + + ArrayListsource.
+ */
+ public static PathDataNode[] deepCopyNodes(PathDataNode[] source) {
+ if (source == null) {
+ return null;
+ }
+ PathDataNode[] copy = new PathParser.PathDataNode[source.length];
+ for (int i = 0; i < source.length; i ++) {
+ copy[i] = new PathDataNode(source[i]);
+ }
+ return copy;
+ }
+
+ /**
+ * @param nodesFrom The source path represented in an array of PathDataNode
+ * @param nodesTo The target path represented in an array of PathDataNode
+ * @return whether the nodesFrom can morph into nodesTo
+ */
+ public static boolean canMorph(PathDataNode[] nodesFrom, PathDataNode[] nodesTo) {
+ if (nodesFrom == null || nodesTo == null) {
+ return false;
+ }
+
+ if (nodesFrom.length != nodesTo.length) {
+ return false;
+ }
+
+ for (int i = 0; i < nodesFrom.length; i ++) {
+ if (nodesFrom[i].mType != nodesTo[i].mType
+ || nodesFrom[i].mParams.length != nodesTo[i].mParams.length) {
+ return false;
+ }
+ }
+ return true;
+ }
+
+ /**
+ * Update the target's data to match the source.
+ * Before calling this, make sure canMorph(target, source) is true.
+ *
+ * @param target The target path represented in an array of PathDataNode
+ * @param source The source path represented in an array of PathDataNode
+ */
+ public static void updateNodes(PathDataNode[] target, PathDataNode[] source) {
+ for (int i = 0; i < source.length; i ++) {
+ target[i].mType = source[i].mType;
+ for (int j = 0; j < source[i].mParams.length; j ++) {
+ target[i].mParams[j] = source[i].mParams[j];
+ }
+ }
+ }
+
+ private static int nextStart(String s, int end) {
+ char c;
+
+ while (end < s.length()) {
+ c = s.charAt(end);
+ if (((c - 'A') * (c - 'Z') <= 0) || (((c - 'a') * (c - 'z') <= 0))) {
+ return end;
+ }
+ end++;
+ }
+ return end;
+ }
+
+ private static void addNode(ArrayListnodeFrom and nodeTo according to the
+ * fraction.
+ *
+ * @param nodeFrom The start value as a PathDataNode.
+ * @param nodeTo The end value as a PathDataNode
+ * @param fraction The fraction to interpolate.
+ */
+ public void interpolatePathDataNode(PathDataNode nodeFrom,
+ PathDataNode nodeTo, float fraction) {
+ for (int i = 0; i < nodeFrom.mParams.length; i++) {
+ mParams[i] = nodeFrom.mParams[i] * (1 - fraction)
+ + nodeTo.mParams[i] * fraction;
+ }
+ }
+
+ private static void addCommand(Path path, float[] current,
+ char previousCmd, char cmd, float[] val) {
+
+ int incr = 2;
+ float currentX = current[0];
+ float currentY = current[1];
+ float ctrlPointX = current[2];
+ float ctrlPointY = current[3];
+ float reflectiveCtrlPointX;
+ float reflectiveCtrlPointY;
+
+ switch (cmd) {
+ case 'z':
+ case 'Z':
+ path.close();
+ return;
+ case 'm':
+ case 'M':
+ case 'l':
+ case 'L':
+ case 't':
+ case 'T':
+ incr = 2;
+ break;
+ case 'h':
+ case 'H':
+ case 'v':
+ case 'V':
+ incr = 1;
+ break;
+ case 'c':
+ case 'C':
+ incr = 6;
+ break;
+ case 's':
+ case 'S':
+ case 'q':
+ case 'Q':
+ incr = 4;
+ break;
+ case 'a':
+ case 'A':
+ incr = 7;
+ break;
+ }
+ for (int k = 0; k < val.length; k += incr) {
+ switch (cmd) {
+ case 'm': // moveto - Start a new sub-path (relative)
+ path.rMoveTo(val[k + 0], val[k + 1]);
+ currentX += val[k + 0];
+ currentY += val[k + 1];
+ break;
+ case 'M': // moveto - Start a new sub-path
+ path.moveTo(val[k + 0], val[k + 1]);
+ currentX = val[k + 0];
+ currentY = val[k + 1];
+ break;
+ case 'l': // lineto - Draw a line from the current point (relative)
+ path.rLineTo(val[k + 0], val[k + 1]);
+ currentX += val[k + 0];
+ currentY += val[k + 1];
+ break;
+ case 'L': // lineto - Draw a line from the current point
+ path.lineTo(val[k + 0], val[k + 1]);
+ currentX = val[k + 0];
+ currentY = val[k + 1];
+ break;
+ case 'z': // closepath - Close the current subpath
+ case 'Z': // closepath - Close the current subpath
+ path.close();
+ break;
+ case 'h': // horizontal lineto - Draws a horizontal line (relative)
+ path.rLineTo(val[k + 0], 0);
+ currentX += val[k + 0];
+ break;
+ case 'H': // horizontal lineto - Draws a horizontal line
+ path.lineTo(val[k + 0], currentY);
+ currentX = val[k + 0];
+ break;
+ case 'v': // vertical lineto - Draws a vertical line from the current point (r)
+ path.rLineTo(0, val[k + 0]);
+ currentY += val[k + 0];
+ break;
+ case 'V': // vertical lineto - Draws a vertical line from the current point
+ path.lineTo(currentX, val[k + 0]);
+ currentY = val[k + 0];
+ break;
+ case 'c': // curveto - Draws a cubic Bézier curve (relative)
+ path.rCubicTo(val[k + 0], val[k + 1], val[k + 2], val[k + 3],
+ val[k + 4], val[k + 5]);
+
+ ctrlPointX = currentX + val[k + 2];
+ ctrlPointY = currentY + val[k + 3];
+ currentX += val[k + 4];
+ currentY += val[k + 5];
+
+ break;
+ case 'C': // curveto - Draws a cubic Bézier curve
+ path.cubicTo(val[k + 0], val[k + 1], val[k + 2], val[k + 3],
+ val[k + 4], val[k + 5]);
+ currentX = val[k + 4];
+ currentY = val[k + 5];
+ ctrlPointX = val[k + 2];
+ ctrlPointY = val[k + 3];
+ break;
+ case 's': // smooth curveto - Draws a cubic Bézier curve (reflective cp)
+ reflectiveCtrlPointX = 0;
+ reflectiveCtrlPointY = 0;
+ if (previousCmd == 'c' || previousCmd == 's'
+ || previousCmd == 'C' || previousCmd == 'S') {
+ reflectiveCtrlPointX = currentX - ctrlPointX;
+ reflectiveCtrlPointY = currentY - ctrlPointY;
+ }
+ path.rCubicTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
+ val[k + 0], val[k + 1],
+ val[k + 2], val[k + 3]);
+
+ ctrlPointX = currentX + val[k + 0];
+ ctrlPointY = currentY + val[k + 1];
+ currentX += val[k + 2];
+ currentY += val[k + 3];
+ break;
+ case 'S': // shorthand/smooth curveto Draws a cubic Bézier curve(reflective cp)
+ reflectiveCtrlPointX = currentX;
+ reflectiveCtrlPointY = currentY;
+ if (previousCmd == 'c' || previousCmd == 's'
+ || previousCmd == 'C' || previousCmd == 'S') {
+ reflectiveCtrlPointX = 2 * currentX - ctrlPointX;
+ reflectiveCtrlPointY = 2 * currentY - ctrlPointY;
+ }
+ path.cubicTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
+ val[k + 0], val[k + 1], val[k + 2], val[k + 3]);
+ ctrlPointX = val[k + 0];
+ ctrlPointY = val[k + 1];
+ currentX = val[k + 2];
+ currentY = val[k + 3];
+ break;
+ case 'q': // Draws a quadratic Bézier (relative)
+ path.rQuadTo(val[k + 0], val[k + 1], val[k + 2], val[k + 3]);
+ ctrlPointX = currentX + val[k + 0];
+ ctrlPointY = currentY + val[k + 1];
+ currentX += val[k + 2];
+ currentY += val[k + 3];
+ break;
+ case 'Q': // Draws a quadratic Bézier
+ path.quadTo(val[k + 0], val[k + 1], val[k + 2], val[k + 3]);
+ ctrlPointX = val[k + 0];
+ ctrlPointY = val[k + 1];
+ currentX = val[k + 2];
+ currentY = val[k + 3];
+ break;
+ case 't': // Draws a quadratic Bézier curve(reflective control point)(relative)
+ reflectiveCtrlPointX = 0;
+ reflectiveCtrlPointY = 0;
+ if (previousCmd == 'q' || previousCmd == 't'
+ || previousCmd == 'Q' || previousCmd == 'T') {
+ reflectiveCtrlPointX = currentX - ctrlPointX;
+ reflectiveCtrlPointY = currentY - ctrlPointY;
+ }
+ path.rQuadTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
+ val[k + 0], val[k + 1]);
+ ctrlPointX = currentX + reflectiveCtrlPointX;
+ ctrlPointY = currentY + reflectiveCtrlPointY;
+ currentX += val[k + 0];
+ currentY += val[k + 1];
+ break;
+ case 'T': // Draws a quadratic Bézier curve (reflective control point)
+ reflectiveCtrlPointX = currentX;
+ reflectiveCtrlPointY = currentY;
+ if (previousCmd == 'q' || previousCmd == 't'
+ || previousCmd == 'Q' || previousCmd == 'T') {
+ reflectiveCtrlPointX = 2 * currentX - ctrlPointX;
+ reflectiveCtrlPointY = 2 * currentY - ctrlPointY;
+ }
+ path.quadTo(reflectiveCtrlPointX, reflectiveCtrlPointY,
+ val[k + 0], val[k + 1]);
+ ctrlPointX = reflectiveCtrlPointX;
+ ctrlPointY = reflectiveCtrlPointY;
+ currentX = val[k + 0];
+ currentY = val[k + 1];
+ break;
+ case 'a': // Draws an elliptical arc
+ // (rx ry x-axis-rotation large-arc-flag sweep-flag x y)
+ drawArc(path,
+ currentX,
+ currentY,
+ val[k + 5] + currentX,
+ val[k + 6] + currentY,
+ val[k + 0],
+ val[k + 1],
+ val[k + 2],
+ val[k + 3] != 0,
+ val[k + 4] != 0);
+ currentX += val[k + 5];
+ currentY += val[k + 6];
+ ctrlPointX = currentX;
+ ctrlPointY = currentY;
+ break;
+ case 'A': // Draws an elliptical arc
+ drawArc(path,
+ currentX,
+ currentY,
+ val[k + 5],
+ val[k + 6],
+ val[k + 0],
+ val[k + 1],
+ val[k + 2],
+ val[k + 3] != 0,
+ val[k + 4] != 0);
+ currentX = val[k + 5];
+ currentY = val[k + 6];
+ ctrlPointX = currentX;
+ ctrlPointY = currentY;
+ break;
+ }
+ previousCmd = cmd;
+ }
+ current[0] = currentX;
+ current[1] = currentY;
+ current[2] = ctrlPointX;
+ current[3] = ctrlPointY;
+ }
+
+ private static void drawArc(Path p,
+ float x0,
+ float y0,
+ float x1,
+ float y1,
+ float a,
+ float b,
+ float theta,
+ boolean isMoreThanHalf,
+ boolean isPositiveArc) {
+
+ /* Convert rotation angle from degrees to radians */
+ double thetaD = Math.toRadians(theta);
+ /* Pre-compute rotation matrix entries */
+ double cosTheta = Math.cos(thetaD);
+ double sinTheta = Math.sin(thetaD);
+ /* Transform (x0, y0) and (x1, y1) into unit space */
+ /* using (inverse) rotation, followed by (inverse) scale */
+ double x0p = (x0 * cosTheta + y0 * sinTheta) / a;
+ double y0p = (-x0 * sinTheta + y0 * cosTheta) / b;
+ double x1p = (x1 * cosTheta + y1 * sinTheta) / a;
+ double y1p = (-x1 * sinTheta + y1 * cosTheta) / b;
+
+ /* Compute differences and averages */
+ double dx = x0p - x1p;
+ double dy = y0p - y1p;
+ double xm = (x0p + x1p) / 2;
+ double ym = (y0p + y1p) / 2;
+ /* Solve for intersecting unit circles */
+ double dsq = dx * dx + dy * dy;
+ if (dsq == 0.0) {
+ Log.w(LOGTAG, " Points are coincident");
+ return; /* Points are coincident */
+ }
+ double disc = 1.0 / dsq - 1.0 / 4.0;
+ if (disc < 0.0) {
+ Log.w(LOGTAG, "Points are too far apart " + dsq);
+ float adjust = (float) (Math.sqrt(dsq) / 1.99999);
+ drawArc(p, x0, y0, x1, y1, a * adjust,
+ b * adjust, theta, isMoreThanHalf, isPositiveArc);
+ return; /* Points are too far apart */
+ }
+ double s = Math.sqrt(disc);
+ double sdx = s * dx;
+ double sdy = s * dy;
+ double cx;
+ double cy;
+ if (isMoreThanHalf == isPositiveArc) {
+ cx = xm - sdy;
+ cy = ym + sdx;
+ } else {
+ cx = xm + sdy;
+ cy = ym - sdx;
+ }
+
+ double eta0 = Math.atan2((y0p - cy), (x0p - cx));
+
+ double eta1 = Math.atan2((y1p - cy), (x1p - cx));
+
+ double sweep = (eta1 - eta0);
+ if (isPositiveArc != (sweep >= 0)) {
+ if (sweep > 0) {
+ sweep -= 2 * Math.PI;
+ } else {
+ sweep += 2 * Math.PI;
+ }
+ }
+
+ cx *= a;
+ cy *= b;
+ double tcx = cx;
+ cx = cx * cosTheta - cy * sinTheta;
+ cy = tcx * sinTheta + cy * cosTheta;
+
+ arcToBezier(p, cx, cy, a, b, x0, y0, thetaD, eta0, sweep);
+ }
+
+ /**
+ * Converts an arc to cubic Bezier segments and records them in p.
+ *
+ * @param p The target for the cubic Bezier segments
+ * @param cx The x coordinate center of the ellipse
+ * @param cy The y coordinate center of the ellipse
+ * @param a The radius of the ellipse in the horizontal direction
+ * @param b The radius of the ellipse in the vertical direction
+ * @param e1x E(eta1) x coordinate of the starting point of the arc
+ * @param e1y E(eta2) y coordinate of the starting point of the arc
+ * @param theta The angle that the ellipse bounding rectangle makes with horizontal plane
+ * @param start The start angle of the arc on the ellipse
+ * @param sweep The angle (positive or negative) of the sweep of the arc on the ellipse
+ */
+ private static void arcToBezier(Path p,
+ double cx,
+ double cy,
+ double a,
+ double b,
+ double e1x,
+ double e1y,
+ double theta,
+ double start,
+ double sweep) {
+ // Taken from equations at: http://spaceroots.org/documents/ellipse/node8.html
+ // and http://www.spaceroots.org/documents/ellipse/node22.html
+
+ // Maximum of 45 degrees per cubic Bezier segment
+ int numSegments = Math.abs((int) Math.ceil(sweep * 4 / Math.PI));
+
+ double eta1 = start;
+ double cosTheta = Math.cos(theta);
+ double sinTheta = Math.sin(theta);
+ double cosEta1 = Math.cos(eta1);
+ double sinEta1 = Math.sin(eta1);
+ double ep1x = (-a * cosTheta * sinEta1) - (b * sinTheta * cosEta1);
+ double ep1y = (-a * sinTheta * sinEta1) + (b * cosTheta * cosEta1);
+
+ double anglePerSegment = sweep / numSegments;
+ for (int i = 0; i < numSegments; i++) {
+ double eta2 = eta1 + anglePerSegment;
+ double sinEta2 = Math.sin(eta2);
+ double cosEta2 = Math.cos(eta2);
+ double e2x = cx + (a * cosTheta * cosEta2) - (b * sinTheta * sinEta2);
+ double e2y = cy + (a * sinTheta * cosEta2) + (b * cosTheta * sinEta2);
+ double ep2x = -a * cosTheta * sinEta2 - b * sinTheta * cosEta2;
+ double ep2y = -a * sinTheta * sinEta2 + b * cosTheta * cosEta2;
+ double tanDiff2 = Math.tan((eta2 - eta1) / 2);
+ double alpha =
+ Math.sin(eta2 - eta1) * (Math.sqrt(4 + (3 * tanDiff2 * tanDiff2)) - 1) / 3;
+ double q1x = e1x + alpha * ep1x;
+ double q1y = e1y + alpha * ep1y;
+ double q2x = e2x - alpha * ep2x;
+ double q2y = e2y - alpha * ep2y;
+
+ p.cubicTo((float) q1x,
+ (float) q1y,
+ (float) q2x,
+ (float) q2y,
+ (float) e2x,
+ (float) e2y);
+ eta1 = eta2;
+ e1x = e2x;
+ e1y = e2y;
+ ep1x = ep2x;
+ ep1y = ep2y;
+ }
+ }
+ }
+}
diff --git a/library/src/main/java/com/telly/mrvector/Utils.java b/library/src/main/java/com/telly/mrvector/Utils.java
new file mode 100644
index 0000000..159464d
--- /dev/null
+++ b/library/src/main/java/com/telly/mrvector/Utils.java
@@ -0,0 +1,115 @@
+/*
+ * Copyright (C) Telly, Inc. and other contributors.
+ *
+ * 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 com.telly.mrvector;
+
+import android.annotation.TargetApi;
+import android.content.res.ColorStateList;
+import android.content.res.TypedArray;
+import android.graphics.Color;
+import android.graphics.PorterDuff;
+import android.graphics.PorterDuffColorFilter;
+import android.graphics.drawable.Drawable;
+import android.util.Log;
+
+import static android.graphics.PorterDuff.Mode;
+import static android.graphics.PorterDuff.Mode.SRC_IN;
+import static android.os.Build.VERSION.SDK_INT;
+import static android.os.Build.VERSION_CODES.LOLLIPOP;
+import static android.util.LayoutDirection.LTR;
+import static com.telly.mrvector.VectorDrawable.LOGTAG;
+
+/**
+ * @hide
+ */
+public class Utils {
+ /**
+ * Stolen from Drawable
+ */
+ static final Mode DEFAULT_TINT_MODE = SRC_IN;
+ static final boolean LOLLIPOP_PLUS = SDK_INT >= LOLLIPOP;
+
+ public static <vector> element.
+ *
+ * The vector drawable has the following elements:
+ *
+ * <vector>android:nameandroid:widthandroid:heightandroid:viewportWidthandroid:viewportHeightandroid:tintandroid:tintModeandroid:autoMirroredandroid:alpha<group>android:nameandroid:rotationandroid:pivotXandroid:pivotYandroid:scaleXandroid:scaleYandroid:translateXandroid:translateY<path>android:nameandroid:pathDataandroid:fillColorandroid:strokeColorandroid:strokeWidthandroid:strokeAlphaandroid:fillAlphaandroid:trimPathStartandroid:trimPathEndandroid:trimPathOffsetandroid:strokeLineCapandroid:strokeLineJoinandroid:strokeMiterLimit<clip-path>android:nameandroid:pathData+ * <vector xmlns:android="http://schemas.android.com/apk/res/android" + * android:height="64dp" + * android:width="64dp" + * android:viewportHeight="600" + * android:viewportWidth="600" > + * <group + * android:name="rotationGroup" + * android:pivotX="300.0" + * android:pivotY="300.0" + * android:rotation="45.0" > + * <path + * android:name="v" + * android:fillColor="#000000" + * android:pathData="M300,70 l 0,-70 70,70 0,0 -70,70z" /> + * </group> + * </vector> + *