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https://github.com/material-components/material-components-android.git
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ca07e5f616
The OnChangedListener provides a callback that MaterialShapeDrawables can use to invalidate themselves when the associated ShapeAppearanceModel changes. This allows for modifying the ShapeAppearanceModel through the get/setShapeAppearance methods that the Shapeable interface exposes without having to update the client to redraw itself. PiperOrigin-RevId: 238703600
614 lines
20 KiB
Java
614 lines
20 KiB
Java
/*
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* Copyright 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.google.android.material.shape;
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import com.google.android.material.R;
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import static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.RectF;
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import androidx.annotation.AttrRes;
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import androidx.annotation.Dimension;
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import androidx.annotation.Nullable;
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import androidx.annotation.RestrictTo;
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import androidx.annotation.StyleRes;
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import android.util.AttributeSet;
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import android.view.ContextThemeWrapper;
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import java.util.LinkedHashSet;
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import java.util.Set;
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/**
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* This class models the edges and corners of a shape, which are used by {@link
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* MaterialShapeDrawable} to generate and render the shape for a view's background.
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*/
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public class ShapeAppearanceModel {
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/**
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* Listener called every time a {@link ShapeAppearanceModel} corner or edge is modified and
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* notifies the {@link MaterialShapeDrawable} that the shape has changed so that it can invalidate
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* itself. Components that need to respond to shape changes can use this interface to get a
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* callback to respond to shape changes.
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*/
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public interface OnChangedListener {
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/** Callback invoked when a corner or edge of the {@link ShapeAppearanceModel} changes. */
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void onShapeAppearanceModelChanged();
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}
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private CornerTreatment topLeftCorner;
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private CornerTreatment topRightCorner;
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private CornerTreatment bottomRightCorner;
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private CornerTreatment bottomLeftCorner;
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private EdgeTreatment topEdge;
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private EdgeTreatment rightEdge;
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private EdgeTreatment bottomEdge;
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private EdgeTreatment leftEdge;
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private final Set<OnChangedListener> onChangedListeners = new LinkedHashSet<>();
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/** Constructs a default path generator with default edge and corner treatments. */
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public ShapeAppearanceModel() {
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setTopLeftCornerInternal(MaterialShapeUtils.createDefaultCornerTreatment());
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setTopRightCornerInternal(MaterialShapeUtils.createDefaultCornerTreatment());
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setBottomRightCornerInternal(MaterialShapeUtils.createDefaultCornerTreatment());
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setBottomLeftCornerInternal(MaterialShapeUtils.createDefaultCornerTreatment());
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setLeftEdgeInternal(MaterialShapeUtils.createDefaultEdgeTreatment());
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setTopEdgeInternal(MaterialShapeUtils.createDefaultEdgeTreatment());
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setRightEdgeInternal(MaterialShapeUtils.createDefaultEdgeTreatment());
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setBottomEdgeInternal(MaterialShapeUtils.createDefaultEdgeTreatment());
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onShapeAppearanceModelChanged();
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}
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public ShapeAppearanceModel(ShapeAppearanceModel shapeAppearanceModel) {
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setTopLeftCornerInternal(shapeAppearanceModel.getTopLeftCorner().clone());
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setTopRightCornerInternal(shapeAppearanceModel.getTopRightCorner().clone());
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setBottomRightCornerInternal(shapeAppearanceModel.getBottomRightCorner().clone());
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setBottomLeftCornerInternal(shapeAppearanceModel.getBottomLeftCorner().clone());
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setLeftEdgeInternal(shapeAppearanceModel.getLeftEdge().clone());
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setTopEdgeInternal(shapeAppearanceModel.getTopEdge().clone());
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setRightEdgeInternal(shapeAppearanceModel.getRightEdge().clone());
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setBottomEdgeInternal(shapeAppearanceModel.getBottomEdge().clone());
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}
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public ShapeAppearanceModel(
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Context context, AttributeSet attrs, @AttrRes int defStyleAttr, @StyleRes int defStyleRes) {
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this(context, attrs, defStyleAttr, defStyleRes, 0);
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}
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public ShapeAppearanceModel(
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Context context,
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AttributeSet attrs,
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@AttrRes int defStyleAttr,
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@StyleRes int defStyleRes,
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int defaultCornerSize) {
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TypedArray a =
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context.obtainStyledAttributes(attrs, R.styleable.MaterialShape, defStyleAttr, defStyleRes);
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int shapeAppearanceResId = a.getResourceId(R.styleable.MaterialShape_shapeAppearance, 0);
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int shapeAppearanceOverlayResId =
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a.getResourceId(R.styleable.MaterialShape_shapeAppearanceOverlay, 0);
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a.recycle();
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// The attributes in shapeAppearanceOverlay should be applied on top of shapeAppearance.
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if (shapeAppearanceOverlayResId != 0) {
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context = new ContextThemeWrapper(context, shapeAppearanceResId);
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shapeAppearanceResId = shapeAppearanceOverlayResId;
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}
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a = context.obtainStyledAttributes(shapeAppearanceResId, R.styleable.ShapeAppearance);
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int cornerFamily = a.getInt(R.styleable.ShapeAppearance_cornerFamily, CornerFamily.ROUNDED);
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int cornerFamilyTopLeft =
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a.getInt(R.styleable.ShapeAppearance_cornerFamilyTopLeft, cornerFamily);
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int cornerFamilyTopRight =
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a.getInt(R.styleable.ShapeAppearance_cornerFamilyTopRight, cornerFamily);
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int cornerFamilyBottomRight =
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a.getInt(R.styleable.ShapeAppearance_cornerFamilyBottomRight, cornerFamily);
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int cornerFamilyBottomLeft =
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a.getInt(R.styleable.ShapeAppearance_cornerFamilyBottomLeft, cornerFamily);
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int cornerSize =
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a.getDimensionPixelSize(R.styleable.ShapeAppearance_cornerSize, defaultCornerSize);
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int cornerSizeTopLeft =
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a.getDimensionPixelSize(R.styleable.ShapeAppearance_cornerSizeTopLeft, cornerSize);
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int cornerSizeTopRight =
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a.getDimensionPixelSize(R.styleable.ShapeAppearance_cornerSizeTopRight, cornerSize);
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int cornerSizeBottomRight =
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a.getDimensionPixelSize(R.styleable.ShapeAppearance_cornerSizeBottomRight, cornerSize);
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int cornerSizeBottomLeft =
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a.getDimensionPixelSize(R.styleable.ShapeAppearance_cornerSizeBottomLeft, cornerSize);
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setTopLeftCornerInternal(
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MaterialShapeUtils.createCornerTreatment(cornerFamilyTopLeft, cornerSizeTopLeft));
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setTopRightCornerInternal(
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MaterialShapeUtils.createCornerTreatment(cornerFamilyTopRight, cornerSizeTopRight));
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setBottomRightCornerInternal(
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MaterialShapeUtils.createCornerTreatment(cornerFamilyBottomRight, cornerSizeBottomRight));
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setBottomLeftCornerInternal(
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MaterialShapeUtils.createCornerTreatment(cornerFamilyBottomLeft, cornerSizeBottomLeft));
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setTopEdgeInternal(MaterialShapeUtils.createDefaultEdgeTreatment());
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setRightEdgeInternal(MaterialShapeUtils.createDefaultEdgeTreatment());
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setBottomEdgeInternal(MaterialShapeUtils.createDefaultEdgeTreatment());
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setLeftEdgeInternal(MaterialShapeUtils.createDefaultEdgeTreatment());
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a.recycle();
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}
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public void setAllCorners(@CornerFamily int cornerFamily, @Dimension int cornerSize) {
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setAllCorners(MaterialShapeUtils.createCornerTreatment(cornerFamily, cornerSize));
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}
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/**
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* Sets all corner treatments.
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*
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* @param cornerTreatment the corner treatment to use for all four corners.
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*/
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public void setAllCorners(CornerTreatment cornerTreatment) {
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boolean changed = setTopLeftCornerInternal(cornerTreatment.clone());
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changed |= setTopRightCornerInternal(cornerTreatment.clone());
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changed |= setBottomRightCornerInternal(cornerTreatment.clone());
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changed |= setBottomLeftCornerInternal(cornerTreatment.clone());
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if (changed) {
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onShapeAppearanceModelChanged();
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}
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}
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public void setCornerRadius(float cornerRadius) {
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setCornerRadii(cornerRadius, cornerRadius, cornerRadius, cornerRadius);
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}
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public void setCornerRadii(
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float topLeftCornerRadius,
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float topRightCornerRadius,
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float bottomRightCornerRadius,
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float bottomLeftCornerRadius) {
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boolean changed = setTopLeftCornerSizeInternal(topLeftCornerRadius);
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changed |= setTopRightCornerSizeInternal(topRightCornerRadius);
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changed |= setBottomRightCornerSizeInternal(bottomRightCornerRadius);
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changed |= setBottomLeftCornerSizeInternal(bottomLeftCornerRadius);
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if (changed) {
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onShapeAppearanceModelChanged();
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}
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}
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private boolean setTopLeftCornerSizeInternal(float topLeftCornerSize) {
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boolean changed = false;
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if (this.topLeftCorner.cornerSize != topLeftCornerSize) {
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this.topLeftCorner.cornerSize = topLeftCornerSize;
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changed = true;
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}
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return changed;
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}
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private boolean setTopRightCornerSizeInternal(float topRightCornerSize) {
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boolean changed = false;
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if (this.topRightCorner.cornerSize != topRightCornerSize) {
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this.topRightCorner.cornerSize = topRightCornerSize;
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changed = true;
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}
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return changed;
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}
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private boolean setBottomRightCornerSizeInternal(float bottomRightCornerSize) {
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boolean changed = false;
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if (this.bottomRightCorner.cornerSize != bottomRightCornerSize) {
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this.bottomRightCorner.cornerSize = bottomRightCornerSize;
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changed = true;
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}
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return changed;
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}
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private boolean setBottomLeftCornerSizeInternal(float bottomLeftCornerSize) {
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boolean changed = false;
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if (this.bottomLeftCorner.cornerSize != bottomLeftCornerSize) {
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this.bottomLeftCorner.cornerSize = bottomLeftCornerSize;
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changed = true;
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}
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return changed;
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}
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/**
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* Sets all edge treatments.
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*
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* @param edgeTreatment the edge treatment to use for all four edges.
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*/
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public void setAllEdges(EdgeTreatment edgeTreatment) {
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boolean changed = setLeftEdgeInternal(edgeTreatment.clone());
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changed |= setTopEdgeInternal(edgeTreatment.clone());
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changed |= setRightEdgeInternal(edgeTreatment.clone());
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changed |= setBottomEdgeInternal(edgeTreatment.clone());
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if (changed) {
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onShapeAppearanceModelChanged();
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}
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}
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/**
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* Sets corner treatments.
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*
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* @param topLeftCorner the corner treatment to use in the top-left corner.
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* @param topRightCorner the corner treatment to use in the top-right corner.
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* @param bottomRightCorner the corner treatment to use in the bottom-right corner.
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* @param bottomLeftCorner the corner treatment to use in the bottom-left corner.
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*/
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public void setCornerTreatments(
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CornerTreatment topLeftCorner,
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CornerTreatment topRightCorner,
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CornerTreatment bottomRightCorner,
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CornerTreatment bottomLeftCorner) {
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boolean changed = setTopLeftCornerInternal(topLeftCorner);
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changed |= setTopRightCornerInternal(topRightCorner);
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changed |= setBottomRightCornerInternal(bottomRightCorner);
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changed |= setBottomLeftCornerInternal(bottomLeftCorner);
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if (changed) {
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onShapeAppearanceModelChanged();
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}
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}
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/**
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* Sets edge treatments.
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*
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* @param leftEdge the edge treatment to use on the left edge.
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* @param topEdge the edge treatment to use on the top edge.
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* @param rightEdge the edge treatment to use on the right edge.
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* @param bottomEdge the edge treatment to use on the bottom edge.
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*/
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public void setEdgeTreatments(
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EdgeTreatment leftEdge,
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EdgeTreatment topEdge,
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EdgeTreatment rightEdge,
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EdgeTreatment bottomEdge) {
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boolean changed = setLeftEdgeInternal(leftEdge);
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changed |= setTopEdgeInternal(topEdge);
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changed |= setRightEdgeInternal(rightEdge);
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changed |= setBottomEdgeInternal(bottomEdge);
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if (changed) {
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onShapeAppearanceModelChanged();
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}
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}
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/**
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* Sets the corner treatment for the top-left corner.
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*
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* @param cornerFamily the family to use to create the corner treatment
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* @param cornerSize the size to use to create the corner treatment
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*/
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public void setTopLeftCorner(@CornerFamily int cornerFamily, @Dimension int cornerSize) {
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setTopLeftCorner(MaterialShapeUtils.createCornerTreatment(cornerFamily, cornerSize));
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}
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/**
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* Sets the corner treatment for the top-left corner.
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*
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* @param topLeftCorner the desired treatment.
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*/
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public void setTopLeftCorner(CornerTreatment topLeftCorner) {
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if (setTopLeftCornerInternal(topLeftCorner)) {
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onShapeAppearanceModelChanged();
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}
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}
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private boolean setTopLeftCornerInternal(CornerTreatment topLeftCorner) {
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boolean changed = false;
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if (this.topLeftCorner != topLeftCorner) {
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this.topLeftCorner = topLeftCorner;
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changed = true;
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}
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return changed;
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}
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/**
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* Gets the corner treatment for the top-left corner.
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*
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* @return the corner treatment for the top-left corner.
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*/
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public CornerTreatment getTopLeftCorner() {
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return topLeftCorner;
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}
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/**
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* Sets the corner treatment for the top-right corner.
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*
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* @param cornerFamily the family to use to create the corner treatment
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* @param cornerSize the size to use to create the corner treatment
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*/
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public void setTopRightCorner(@CornerFamily int cornerFamily, @Dimension int cornerSize) {
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setTopRightCorner(MaterialShapeUtils.createCornerTreatment(cornerFamily, cornerSize));
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}
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/**
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* Sets the corner treatment for the top-right corner.
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*
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* @param topRightCorner the desired treatment.
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*/
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public void setTopRightCorner(CornerTreatment topRightCorner) {
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if (setTopRightCornerInternal(topRightCorner)) {
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onShapeAppearanceModelChanged();
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}
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}
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private boolean setTopRightCornerInternal(CornerTreatment topRightCorner) {
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boolean changed = false;
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if (this.topRightCorner != topRightCorner) {
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this.topRightCorner = topRightCorner;
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changed = true;
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}
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return changed;
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}
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/**
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* Gets the corner treatment for the top-right corner.
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*
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* @return the corner treatment for the top-right corner.
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*/
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public CornerTreatment getTopRightCorner() {
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return topRightCorner;
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}
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/**
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* Sets the corner treatment for the bottom-right corner.
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*
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* @param cornerFamily the family to use to create the corner treatment
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* @param cornerSize the size to use to create the corner treatment
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*/
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public void setBottomRightCorner(@CornerFamily int cornerFamily, @Dimension int cornerSize) {
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setBottomRightCorner(MaterialShapeUtils.createCornerTreatment(cornerFamily, cornerSize));
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}
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/**
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* Sets the corner treatment for the bottom-right corner.
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*
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* @param bottomRightCorner the desired treatment.
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*/
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public void setBottomRightCorner(CornerTreatment bottomRightCorner) {
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if (setBottomRightCornerInternal(bottomRightCorner)) {
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onShapeAppearanceModelChanged();
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}
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}
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private boolean setBottomRightCornerInternal(CornerTreatment bottomRightCorner) {
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boolean changed = false;
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if (this.bottomRightCorner != bottomRightCorner) {
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this.bottomRightCorner = bottomRightCorner;
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changed = true;
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}
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return changed;
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}
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/**
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* Gets the corner treatment for the bottom-right corner.
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*
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* @return the corner treatment for the bottom-right corner.
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*/
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public CornerTreatment getBottomRightCorner() {
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return bottomRightCorner;
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}
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/**
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* Sets the corner treatment for the bottom-left corner.
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*
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* @param cornerFamily the family to use to create the corner treatment
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* @param cornerSize the size to use to create the corner treatment
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*/
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public void setBottomLeftCorner(@CornerFamily int cornerFamily, @Dimension int cornerSize) {
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setBottomLeftCorner(MaterialShapeUtils.createCornerTreatment(cornerFamily, cornerSize));
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}
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/**
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* Sets the corner treatment for the bottom-left corner.
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*
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* @param bottomLeftCorner the desired treatment.
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*/
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public void setBottomLeftCorner(CornerTreatment bottomLeftCorner) {
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if (setBottomLeftCornerInternal(bottomLeftCorner)) {
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onShapeAppearanceModelChanged();
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}
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}
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private boolean setBottomLeftCornerInternal(CornerTreatment bottomLeftCorner) {
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boolean changed = false;
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if (this.bottomLeftCorner != bottomLeftCorner) {
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this.bottomLeftCorner = bottomLeftCorner;
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changed = true;
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}
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return changed;
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}
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/**
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* Gets the corner treatment for the bottom-left corner.
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*
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* @return the corner treatment for the bottom-left corner.
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*/
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public CornerTreatment getBottomLeftCorner() {
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return bottomLeftCorner;
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}
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/**
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* Sets the edge treatment for the left edge.
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*
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* @param leftEdge the desired treatment.
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*/
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public void setLeftEdge(EdgeTreatment leftEdge) {
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if (setLeftEdgeInternal(leftEdge)) {
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onShapeAppearanceModelChanged();
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}
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}
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private boolean setLeftEdgeInternal(EdgeTreatment leftEdge) {
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boolean changed = false;
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if (this.leftEdge != leftEdge) {
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this.leftEdge = leftEdge;
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changed = true;
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}
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return changed;
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}
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/**
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* Gets the edge treatment for the left edge.
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*
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* @return the edge treatment for the left edge.
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*/
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public EdgeTreatment getLeftEdge() {
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return leftEdge;
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}
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/**
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* Sets the edge treatment for the top edge.
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*
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* @param topEdge the desired treatment.
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*/
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public void setTopEdge(EdgeTreatment topEdge) {
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if (setTopEdgeInternal(topEdge)) {
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onShapeAppearanceModelChanged();
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}
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}
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private boolean setTopEdgeInternal(EdgeTreatment topEdge) {
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boolean changed = false;
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if (this.topEdge != topEdge) {
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this.topEdge = topEdge;
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changed = true;
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}
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return changed;
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}
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/**
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* Gets the edge treatment for the top edge.
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*
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* @return the edge treatment for the top edge.
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*/
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public EdgeTreatment getTopEdge() {
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return topEdge;
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}
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/**
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* Sets the edge treatment for the right edge.
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*
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* @param rightEdge the desired treatment.
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*/
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public void setRightEdge(EdgeTreatment rightEdge) {
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if (setRightEdgeInternal(rightEdge)) {
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onShapeAppearanceModelChanged();
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}
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}
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private boolean setRightEdgeInternal(EdgeTreatment rightEdge) {
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boolean changed = false;
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if (this.rightEdge != rightEdge) {
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this.rightEdge = rightEdge;
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changed = true;
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
/**
|
|
* Gets the edge treatment for the right edge.
|
|
*
|
|
* @return the edge treatment for the right edge.
|
|
*/
|
|
public EdgeTreatment getRightEdge() {
|
|
return rightEdge;
|
|
}
|
|
|
|
/**
|
|
* Sets the edge treatment for the bottom edge.
|
|
*
|
|
* @param bottomEdge the desired treatment.
|
|
*/
|
|
public void setBottomEdge(EdgeTreatment bottomEdge) {
|
|
if (setBottomEdgeInternal(bottomEdge)) {
|
|
onShapeAppearanceModelChanged();
|
|
}
|
|
}
|
|
|
|
private boolean setBottomEdgeInternal(EdgeTreatment bottomEdge) {
|
|
boolean changed = false;
|
|
if (this.bottomEdge != bottomEdge) {
|
|
this.bottomEdge = bottomEdge;
|
|
changed = true;
|
|
}
|
|
return changed;
|
|
}
|
|
|
|
/**
|
|
* Gets the edge treatment for the bottom edge.
|
|
*
|
|
* @return the edge treatment for the bottom edge.
|
|
*/
|
|
public EdgeTreatment getBottomEdge() {
|
|
return bottomEdge;
|
|
}
|
|
|
|
void addOnChangedListener(@Nullable OnChangedListener onChangedListener) {
|
|
onChangedListeners.add(onChangedListener);
|
|
}
|
|
|
|
void removeOnChangedListener(@Nullable OnChangedListener onChangedListener) {
|
|
onChangedListeners.remove(onChangedListener);
|
|
}
|
|
|
|
private void onShapeAppearanceModelChanged() {
|
|
for (OnChangedListener onChangedListener : onChangedListeners) {
|
|
if (onChangedListener != null) {
|
|
onChangedListener.onShapeAppearanceModelChanged();
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Checks Corner and Edge treatments to see if we can use {@link Canvas#drawRoundRect(RectF,float,
|
|
* float, Paint)} "} to draw this model.
|
|
*
|
|
* @hide
|
|
*/
|
|
@RestrictTo(LIBRARY_GROUP)
|
|
public boolean isRoundRect() {
|
|
boolean hasDefaultEdges =
|
|
leftEdge.getClass().equals(EdgeTreatment.class)
|
|
&& rightEdge.getClass().equals(EdgeTreatment.class)
|
|
&& topEdge.getClass().equals(EdgeTreatment.class)
|
|
&& bottomEdge.getClass().equals(EdgeTreatment.class);
|
|
|
|
float cornerSize = topLeftCorner.getCornerSize();
|
|
|
|
boolean cornersHaveSameSize =
|
|
topRightCorner.getCornerSize() == cornerSize
|
|
&& bottomLeftCorner.getCornerSize() == cornerSize
|
|
&& bottomRightCorner.getCornerSize() == cornerSize;
|
|
|
|
boolean hasRoundedCorners =
|
|
topRightCorner instanceof RoundedCornerTreatment
|
|
&& topLeftCorner instanceof RoundedCornerTreatment
|
|
&& bottomRightCorner instanceof RoundedCornerTreatment
|
|
&& bottomLeftCorner instanceof RoundedCornerTreatment;
|
|
|
|
return hasDefaultEdges && cornersHaveSameSize && hasRoundedCorners;
|
|
}
|
|
}
|