255 lines
11 KiB
Java
255 lines
11 KiB
Java
package androidx.constraintlayout.widget;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.util.Log;
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import android.util.SparseArray;
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import android.util.Xml;
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import java.io.IOException;
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import java.util.ArrayList;
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import java.util.Iterator;
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import org.xmlpull.v1.XmlPullParser;
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import org.xmlpull.v1.XmlPullParserException;
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public class StateSet {
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private static final boolean DEBUG = false;
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public static final String TAG = "ConstraintLayoutStates";
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private SparseArray<ConstraintSet> mConstraintSetMap = new SparseArray<>();
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private ConstraintsChangedListener mConstraintsChangedListener = null;
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public int mCurrentConstraintNumber = -1;
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public int mCurrentStateId = -1;
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public ConstraintSet mDefaultConstraintSet;
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public int mDefaultState = -1;
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private SparseArray<State> mStateList = new SparseArray<>();
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public static class State {
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public int mConstraintID = -1;
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public int mId;
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public boolean mIsLayout;
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public ArrayList<Variant> mVariants = new ArrayList<>();
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public State(Context context, XmlPullParser xmlPullParser) {
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this.mIsLayout = false;
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TypedArray obtainStyledAttributes = context.obtainStyledAttributes(Xml.asAttributeSet(xmlPullParser), R.styleable.State);
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int indexCount = obtainStyledAttributes.getIndexCount();
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for (int i = 0; i < indexCount; i++) {
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int index = obtainStyledAttributes.getIndex(i);
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if (index == R.styleable.State_android_id) {
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this.mId = obtainStyledAttributes.getResourceId(index, this.mId);
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} else if (index == R.styleable.State_constraints) {
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this.mConstraintID = obtainStyledAttributes.getResourceId(index, this.mConstraintID);
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String resourceTypeName = context.getResources().getResourceTypeName(this.mConstraintID);
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context.getResources().getResourceName(this.mConstraintID);
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if ("layout".equals(resourceTypeName)) {
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this.mIsLayout = true;
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}
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}
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}
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obtainStyledAttributes.recycle();
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}
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public void add(Variant variant) {
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this.mVariants.add(variant);
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}
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public int findMatch(float f, float f2) {
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for (int i = 0; i < this.mVariants.size(); i++) {
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if (this.mVariants.get(i).match(f, f2)) {
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return i;
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}
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}
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return -1;
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}
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}
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public static class Variant {
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public int mConstraintID = -1;
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public int mId;
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public boolean mIsLayout;
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public float mMaxHeight = Float.NaN;
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public float mMaxWidth = Float.NaN;
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public float mMinHeight = Float.NaN;
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public float mMinWidth = Float.NaN;
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public Variant(Context context, XmlPullParser xmlPullParser) {
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this.mIsLayout = false;
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TypedArray obtainStyledAttributes = context.obtainStyledAttributes(Xml.asAttributeSet(xmlPullParser), R.styleable.Variant);
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int indexCount = obtainStyledAttributes.getIndexCount();
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for (int i = 0; i < indexCount; i++) {
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int index = obtainStyledAttributes.getIndex(i);
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if (index == R.styleable.Variant_constraints) {
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this.mConstraintID = obtainStyledAttributes.getResourceId(index, this.mConstraintID);
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String resourceTypeName = context.getResources().getResourceTypeName(this.mConstraintID);
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context.getResources().getResourceName(this.mConstraintID);
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if ("layout".equals(resourceTypeName)) {
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this.mIsLayout = true;
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}
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} else if (index == R.styleable.Variant_region_heightLessThan) {
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this.mMaxHeight = obtainStyledAttributes.getDimension(index, this.mMaxHeight);
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} else if (index == R.styleable.Variant_region_heightMoreThan) {
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this.mMinHeight = obtainStyledAttributes.getDimension(index, this.mMinHeight);
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} else if (index == R.styleable.Variant_region_widthLessThan) {
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this.mMaxWidth = obtainStyledAttributes.getDimension(index, this.mMaxWidth);
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} else if (index == R.styleable.Variant_region_widthMoreThan) {
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this.mMinWidth = obtainStyledAttributes.getDimension(index, this.mMinWidth);
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} else {
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Log.v("ConstraintLayoutStates", "Unknown tag");
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}
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}
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obtainStyledAttributes.recycle();
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}
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public boolean match(float f, float f2) {
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if (!Float.isNaN(this.mMinWidth) && f < this.mMinWidth) {
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return false;
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}
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if (!Float.isNaN(this.mMinHeight) && f2 < this.mMinHeight) {
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return false;
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}
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if (Float.isNaN(this.mMaxWidth) || f <= this.mMaxWidth) {
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return Float.isNaN(this.mMaxHeight) || f2 <= this.mMaxHeight;
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}
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return false;
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}
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}
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public StateSet(Context context, XmlPullParser xmlPullParser) {
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load(context, xmlPullParser);
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}
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private void load(Context context, XmlPullParser xmlPullParser) {
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TypedArray obtainStyledAttributes = context.obtainStyledAttributes(Xml.asAttributeSet(xmlPullParser), R.styleable.StateSet);
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int indexCount = obtainStyledAttributes.getIndexCount();
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for (int i = 0; i < indexCount; i++) {
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int index = obtainStyledAttributes.getIndex(i);
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if (index == R.styleable.StateSet_defaultState) {
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this.mDefaultState = obtainStyledAttributes.getResourceId(index, this.mDefaultState);
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}
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}
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obtainStyledAttributes.recycle();
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State state = null;
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try {
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int eventType = xmlPullParser.getEventType();
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while (eventType != 1) {
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if (eventType == 0) {
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xmlPullParser.getName();
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} else if (eventType == 2) {
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String name = xmlPullParser.getName();
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char c = 65535;
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switch (name.hashCode()) {
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case 80204913:
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if (name.equals("State")) {
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c = 2;
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break;
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}
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break;
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case 1301459538:
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if (name.equals("LayoutDescription")) {
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c = 0;
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break;
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}
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break;
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case 1382829617:
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if (name.equals("StateSet")) {
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c = 1;
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break;
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}
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break;
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case 1901439077:
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if (name.equals("Variant")) {
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c = 3;
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break;
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}
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break;
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}
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if (!(c == 0 || c == 1)) {
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if (c == 2) {
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state = new State(context, xmlPullParser);
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this.mStateList.put(state.mId, state);
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} else if (c != 3) {
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Log.v("ConstraintLayoutStates", "unknown tag " + name);
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} else {
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Variant variant = new Variant(context, xmlPullParser);
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if (state != null) {
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state.add(variant);
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}
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}
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}
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} else if (eventType == 3 && "StateSet".equals(xmlPullParser.getName())) {
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return;
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}
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eventType = xmlPullParser.next();
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}
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} catch (XmlPullParserException e) {
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e.printStackTrace();
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} catch (IOException e2) {
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e2.printStackTrace();
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}
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}
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public int convertToConstraintSet(int i, int i2, float f, float f2) {
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State state = this.mStateList.get(i2);
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if (state == null) {
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return i2;
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}
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if (f != -1.0f && f2 != -1.0f) {
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Variant variant = null;
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Iterator<Variant> it = state.mVariants.iterator();
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while (it.hasNext()) {
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Variant next = it.next();
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if (next.match(f, f2)) {
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if (i == next.mConstraintID) {
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return i;
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}
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variant = next;
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}
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}
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return variant != null ? variant.mConstraintID : state.mConstraintID;
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} else if (state.mConstraintID == i) {
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return i;
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} else {
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Iterator<Variant> it2 = state.mVariants.iterator();
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while (it2.hasNext()) {
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if (i == it2.next().mConstraintID) {
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return i;
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}
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}
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return state.mConstraintID;
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}
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}
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public boolean needsToChange(int i, float f, float f2) {
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int i2 = this.mCurrentStateId;
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if (i2 != i) {
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return true;
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}
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State valueAt = i == -1 ? this.mStateList.valueAt(0) : this.mStateList.get(i2);
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int i3 = this.mCurrentConstraintNumber;
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return (i3 == -1 || !valueAt.mVariants.get(i3).match(f, f2)) && this.mCurrentConstraintNumber != valueAt.findMatch(f, f2);
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}
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public void setOnConstraintsChanged(ConstraintsChangedListener constraintsChangedListener) {
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this.mConstraintsChangedListener = constraintsChangedListener;
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}
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public int stateGetConstraintID(int i, int i2, int i3) {
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return updateConstraints(-1, i, (float) i2, (float) i3);
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}
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public int updateConstraints(int i, int i2, float f, float f2) {
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int findMatch;
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if (i == i2) {
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State valueAt = i2 == -1 ? this.mStateList.valueAt(0) : this.mStateList.get(this.mCurrentStateId);
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if (valueAt == null) {
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return -1;
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}
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return ((this.mCurrentConstraintNumber == -1 || !valueAt.mVariants.get(i).match(f, f2)) && i != (findMatch = valueAt.findMatch(f, f2))) ? findMatch == -1 ? valueAt.mConstraintID : valueAt.mVariants.get(findMatch).mConstraintID : i;
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}
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State state = this.mStateList.get(i2);
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if (state == null) {
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return -1;
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}
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int findMatch2 = state.findMatch(f, f2);
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return findMatch2 == -1 ? state.mConstraintID : state.mVariants.get(findMatch2).mConstraintID;
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}
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}
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