| /* |
| * Copyright (C) 2015 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.support.v4.graphics.drawable; |
| |
| import android.content.res.ColorStateList; |
| import android.graphics.Canvas; |
| import android.graphics.ColorFilter; |
| import android.graphics.PorterDuff; |
| import android.graphics.Rect; |
| import android.graphics.Region; |
| import android.graphics.drawable.Drawable; |
| |
| /** |
| * Drawable which delegates all calls to it's wrapped {@link android.graphics.drawable.Drawable}. |
| * <p> |
| * Also allows backward compatible tinting via a color or {@link ColorStateList}. |
| * This functionality is accessed via static methods in {@code DrawableCompat}. |
| */ |
| class DrawableWrapperDonut extends Drawable implements Drawable.Callback, DrawableWrapper { |
| |
| static final PorterDuff.Mode DEFAULT_MODE = PorterDuff.Mode.SRC_IN; |
| |
| private ColorStateList mTintList; |
| private PorterDuff.Mode mTintMode = DEFAULT_MODE; |
| |
| private int mCurrentColor; |
| private PorterDuff.Mode mCurrentMode; |
| private boolean mColorFilterSet; |
| |
| Drawable mDrawable; |
| |
| DrawableWrapperDonut(Drawable drawable) { |
| setWrappedDrawable(drawable); |
| } |
| |
| @Override |
| public void draw(Canvas canvas) { |
| mDrawable.draw(canvas); |
| } |
| |
| @Override |
| protected void onBoundsChange(Rect bounds) { |
| mDrawable.setBounds(bounds); |
| } |
| |
| @Override |
| public void setChangingConfigurations(int configs) { |
| mDrawable.setChangingConfigurations(configs); |
| } |
| |
| @Override |
| public int getChangingConfigurations() { |
| return mDrawable.getChangingConfigurations(); |
| } |
| |
| @Override |
| public void setDither(boolean dither) { |
| mDrawable.setDither(dither); |
| } |
| |
| @Override |
| public void setFilterBitmap(boolean filter) { |
| mDrawable.setFilterBitmap(filter); |
| } |
| |
| @Override |
| public void setAlpha(int alpha) { |
| mDrawable.setAlpha(alpha); |
| } |
| |
| @Override |
| public void setColorFilter(ColorFilter cf) { |
| mDrawable.setColorFilter(cf); |
| } |
| |
| @Override |
| public boolean isStateful() { |
| final ColorStateList tintList = isCompatTintEnabled() ? mTintList : null; |
| return (tintList != null && tintList.isStateful()) || mDrawable.isStateful(); |
| } |
| |
| @Override |
| public boolean setState(final int[] stateSet) { |
| boolean handled = mDrawable.setState(stateSet); |
| handled = updateTint(stateSet) || handled; |
| return handled; |
| } |
| |
| @Override |
| public int[] getState() { |
| return mDrawable.getState(); |
| } |
| |
| @Override |
| public Drawable getCurrent() { |
| return mDrawable.getCurrent(); |
| } |
| |
| @Override |
| public boolean setVisible(boolean visible, boolean restart) { |
| return super.setVisible(visible, restart) || mDrawable.setVisible(visible, restart); |
| } |
| |
| @Override |
| public int getOpacity() { |
| return mDrawable.getOpacity(); |
| } |
| |
| @Override |
| public Region getTransparentRegion() { |
| return mDrawable.getTransparentRegion(); |
| } |
| |
| @Override |
| public int getIntrinsicWidth() { |
| return mDrawable.getIntrinsicWidth(); |
| } |
| |
| @Override |
| public int getIntrinsicHeight() { |
| return mDrawable.getIntrinsicHeight(); |
| } |
| |
| @Override |
| public int getMinimumWidth() { |
| return mDrawable.getMinimumWidth(); |
| } |
| |
| @Override |
| public int getMinimumHeight() { |
| return mDrawable.getMinimumHeight(); |
| } |
| |
| @Override |
| public boolean getPadding(Rect padding) { |
| return mDrawable.getPadding(padding); |
| } |
| |
| @Override |
| public Drawable mutate() { |
| Drawable wrapped = mDrawable; |
| Drawable mutated = wrapped.mutate(); |
| if (mutated != wrapped) { |
| // If mutate() returned a new instance, update our reference |
| setWrappedDrawable(mutated); |
| } |
| // We return ourselves, since only the wrapped drawable needs to mutate |
| return this; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void invalidateDrawable(Drawable who) { |
| invalidateSelf(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void scheduleDrawable(Drawable who, Runnable what, long when) { |
| scheduleSelf(what, when); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void unscheduleDrawable(Drawable who, Runnable what) { |
| unscheduleSelf(what); |
| } |
| |
| @Override |
| protected boolean onLevelChange(int level) { |
| return mDrawable.setLevel(level); |
| } |
| |
| @Override |
| public void setCompatTint(int tint) { |
| setCompatTintList(ColorStateList.valueOf(tint)); |
| } |
| |
| @Override |
| public void setCompatTintList(ColorStateList tint) { |
| if (mTintList != tint) { |
| mTintList = tint; |
| updateTint(getState()); |
| } |
| } |
| |
| @Override |
| public void setCompatTintMode(PorterDuff.Mode tintMode) { |
| if (mTintMode != tintMode) { |
| mTintMode = tintMode; |
| updateTint(getState()); |
| } |
| } |
| |
| private boolean updateTint(int[] state) { |
| if (!isCompatTintEnabled()) { |
| // If compat tinting is not enabled, fail fast |
| return false; |
| } |
| |
| if (mTintList != null && mTintMode != null) { |
| final int color = mTintList.getColorForState(state, mTintList.getDefaultColor()); |
| if (!mColorFilterSet || color != mCurrentColor || mTintMode != mCurrentMode) { |
| setColorFilter(color, mTintMode); |
| mCurrentColor = color; |
| mCurrentMode = mTintMode; |
| mColorFilterSet = true; |
| return true; |
| } |
| } else { |
| mColorFilterSet = false; |
| clearColorFilter(); |
| } |
| return false; |
| } |
| |
| /** |
| * Returns the wrapped {@link Drawable} |
| */ |
| public Drawable getWrappedDrawable() { |
| return mDrawable; |
| } |
| |
| /** |
| * Sets the current wrapped {@link Drawable} |
| */ |
| public void setWrappedDrawable(Drawable drawable) { |
| if (mDrawable != null) { |
| mDrawable.setCallback(null); |
| } |
| mDrawable = null; |
| |
| if (drawable != null) { |
| // Copy over the bounds from the drawable |
| setBounds(drawable.getBounds()); |
| // Set ourselves as the callback for invalidations |
| drawable.setCallback(this); |
| } else { |
| // Clear our bounds |
| setBounds(0, 0, 0, 0); |
| } |
| |
| mDrawable = drawable; |
| |
| // Invalidate ourselves |
| invalidateSelf(); |
| } |
| |
| protected boolean isCompatTintEnabled() { |
| // It's enabled by default on Donut |
| return true; |
| } |
| } |