Android Open Source - Muzei Scrim Util






From Project

Back to project page Muzei.

License

The source code is released under:

Apache License

If you think the Android project Muzei listed in this page is inappropriate, such as containing malicious code/tools or violating the copyright, please email info at java2s dot com, thanks.

Java Source Code

/*
 * Copyright 2014 Google Inc.//  w  w  w  .  j  av  a2  s.c  o  m
 *
 * 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.google.android.apps.muzei.util;

import android.graphics.Color;
import android.graphics.LinearGradient;
import android.graphics.Shader;
import android.graphics.drawable.Drawable;
import android.graphics.drawable.PaintDrawable;
import android.graphics.drawable.ShapeDrawable;
import android.graphics.drawable.shapes.RectShape;
import android.util.FloatMath;
import android.view.Gravity;

/**
 * Utility methods for creating prettier gradient scrims.
 */
public class ScrimUtil {
    private ScrimUtil() {
    }

    /**
     * Creates an approximated cubic gradient using a multi-stop linear gradient. See
     * <a href="https://plus.google.com/+RomanNurik/posts/2QvHVFWrHZf">this post</a> for more
     * details.
     */
    public static Drawable makeCubicGradientScrimDrawable(int baseColor, int numStops, int gravity) {
        numStops = Math.max(numStops, 2);

        PaintDrawable paintDrawable = new PaintDrawable();
        paintDrawable.setShape(new RectShape());

        final int[] stopColors = new int[numStops];

        int red = Color.red(baseColor);
        int green = Color.green(baseColor);
        int blue = Color.blue(baseColor);
        int alpha = Color.alpha(baseColor);

        for (int i = 0; i < numStops; i++) {
            float x = i * 1f / (numStops - 1);
            float opacity = MathUtil.constrain(0, 1, FloatMath.pow(x, 3));
            stopColors[i] = Color.argb((int) (alpha * opacity), red, green, blue);
        }

        final float x0, x1, y0, y1;
        switch (gravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
            case Gravity.LEFT:  x0 = 1; x1 = 0; break;
            case Gravity.RIGHT: x0 = 0; x1 = 1; break;
            default:            x0 = 0; x1 = 0; break;
        }
        switch (gravity & Gravity.VERTICAL_GRAVITY_MASK) {
            case Gravity.TOP:    y0 = 1; y1 = 0; break;
            case Gravity.BOTTOM: y0 = 0; y1 = 1; break;
            default:             y0 = 0; y1 = 0; break;
        }

        paintDrawable.setShaderFactory(new ShapeDrawable.ShaderFactory() {
            @Override
            public Shader resize(int width, int height) {
                LinearGradient linearGradient = new LinearGradient(
                        width * x0,
                        height * y0,
                        width * x1,
                        height * y1,
                        stopColors, null,
                        Shader.TileMode.CLAMP);
                return linearGradient;
            }
        });

        return paintDrawable;
    }
}




Java Source Code List

com.example.muzei.examplecontractwidget.ArtworkUpdateReceiver.java
com.example.muzei.examplecontractwidget.ArtworkUpdateService.java
com.example.muzei.examplecontractwidget.MuzeiAppWidgetProvider.java
com.example.muzei.examplesource500px.Config.java
com.example.muzei.examplesource500px.FiveHundredPxExampleArtSource.java
com.example.muzei.examplesource500px.FiveHundredPxService.java
com.example.muzei.watchface.ArtworkImageLoader.java
com.example.muzei.watchface.MuzeiExampleWatchface.java
com.example.muzei.watchface.WatchfaceArtworkImageLoader.java
com.google.android.apps.muzei.ActivateMuzeiIntentService.java
com.google.android.apps.muzei.ArtDetailViewport.java
com.google.android.apps.muzei.ArtworkCacheIntentService.java
com.google.android.apps.muzei.ArtworkCache.java
com.google.android.apps.muzei.FullScreenActivity.java
com.google.android.apps.muzei.LockScreenVisibleReceiver.java
com.google.android.apps.muzei.MuzeiActivity.java
com.google.android.apps.muzei.MuzeiApplication.java
com.google.android.apps.muzei.MuzeiWallpaperService.java
com.google.android.apps.muzei.MuzeiWatchFace.java
com.google.android.apps.muzei.MuzeiWearableListenerService.java
com.google.android.apps.muzei.MuzeiWearableListenerService.java
com.google.android.apps.muzei.NetworkChangeReceiver.java
com.google.android.apps.muzei.NewWallpaperNotificationReceiver.java
com.google.android.apps.muzei.PhotoSetAsTargetActivity.java
com.google.android.apps.muzei.SourceManager.java
com.google.android.apps.muzei.SourcePackageChangeReceiver.java
com.google.android.apps.muzei.SourceSubscriberService.java
com.google.android.apps.muzei.TaskQueueService.java
com.google.android.apps.muzei.WearableController.java
com.google.android.apps.muzei.api.Artwork.java
com.google.android.apps.muzei.api.MuzeiArtSource.java
com.google.android.apps.muzei.api.MuzeiContract.java
com.google.android.apps.muzei.api.RemoteMuzeiArtSource.java
com.google.android.apps.muzei.api.UserCommand.java
com.google.android.apps.muzei.api.internal.ProtocolConstants.java
com.google.android.apps.muzei.api.internal.SourceState.java
com.google.android.apps.muzei.event.ArtDetailOpenedClosedEvent.java
com.google.android.apps.muzei.event.ArtworkLoadingStateChangedEvent.java
com.google.android.apps.muzei.event.ArtworkSizeChangedEvent.java
com.google.android.apps.muzei.event.BlurAmountChangedEvent.java
com.google.android.apps.muzei.event.CurrentArtworkDownloadedEvent.java
com.google.android.apps.muzei.event.DimAmountChangedEvent.java
com.google.android.apps.muzei.event.GainedNetworkConnectivityEvent.java
com.google.android.apps.muzei.event.GalleryChosenUrisChangedEvent.java
com.google.android.apps.muzei.event.GreyAmountChangedEvent.java
com.google.android.apps.muzei.event.LockScreenVisibleChangedEvent.java
com.google.android.apps.muzei.event.SelectedSourceChangedEvent.java
com.google.android.apps.muzei.event.SelectedSourceStateChangedEvent.java
com.google.android.apps.muzei.event.SwitchingPhotosStateChangedEvent.java
com.google.android.apps.muzei.event.WallpaperActiveStateChangedEvent.java
com.google.android.apps.muzei.event.WallpaperSizeChangedEvent.java
com.google.android.apps.muzei.featuredart.FeaturedArtSource.java
com.google.android.apps.muzei.gallery.GalleryArtSource.java
com.google.android.apps.muzei.gallery.GalleryDatabase.java
com.google.android.apps.muzei.gallery.GalleryEmptyStateGraphicView.java
com.google.android.apps.muzei.gallery.GallerySettingsActivity.java
com.google.android.apps.muzei.gallery.GalleryStore.java
com.google.android.apps.muzei.provider.MuzeiProvider.java
com.google.android.apps.muzei.render.BitmapRegionLoader.java
com.google.android.apps.muzei.render.DemoRenderController.java
com.google.android.apps.muzei.render.GLColorOverlay.java
com.google.android.apps.muzei.render.GLPicture.java
com.google.android.apps.muzei.render.GLTextureView.java
com.google.android.apps.muzei.render.GLUtil.java
com.google.android.apps.muzei.render.ImageUtil.java
com.google.android.apps.muzei.render.MuzeiBlurRenderer.java
com.google.android.apps.muzei.render.MuzeiRendererFragment.java
com.google.android.apps.muzei.render.RealRenderController.java
com.google.android.apps.muzei.render.RenderController.java
com.google.android.apps.muzei.settings.AboutActivity.java
com.google.android.apps.muzei.settings.Prefs.java
com.google.android.apps.muzei.settings.SettingsActivity.java
com.google.android.apps.muzei.settings.SettingsAdvancedFragment.java
com.google.android.apps.muzei.settings.SettingsChooseSourceFragment.java
com.google.android.apps.muzei.util.AnimatedMuzeiLoadingSpinnerView.java
com.google.android.apps.muzei.util.AnimatedMuzeiLogoFragment.java
com.google.android.apps.muzei.util.AnimatedMuzeiLogoView.java
com.google.android.apps.muzei.util.CheatSheet.java
com.google.android.apps.muzei.util.DrawInsetsFrameLayout.java
com.google.android.apps.muzei.util.IOUtil.java
com.google.android.apps.muzei.util.ImageBlurrer.java
com.google.android.apps.muzei.util.LogUtil.java
com.google.android.apps.muzei.util.LogoPaths.java
com.google.android.apps.muzei.util.MathUtil.java
com.google.android.apps.muzei.util.MultiSelectionController.java
com.google.android.apps.muzei.util.ObservableHorizontalScrollView.java
com.google.android.apps.muzei.util.PanScaleProxyView.java
com.google.android.apps.muzei.util.PanView.java
com.google.android.apps.muzei.util.ScrimUtil.java
com.google.android.apps.muzei.util.Scrollbar.java
com.google.android.apps.muzei.util.SelectionBuilder.java
com.google.android.apps.muzei.util.ShadowDipsTextView.java
com.google.android.apps.muzei.util.SvgPathParser.java
com.google.android.apps.muzei.util.TickingFloatAnimator.java
com.google.android.apps.muzei.util.TypefaceUtil.java
com.google.android.apps.muzei.util.Zoomer.java
net.rbgrn.android.glwallpaperservice.BaseConfigChooser.java
net.rbgrn.android.glwallpaperservice.GLWallpaperService.java