mirror of https://github.com/NekoX-Dev/NekoX.git
102 lines
2.9 KiB
Java
102 lines
2.9 KiB
Java
package org.telegram.ui.Components;
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import android.graphics.Canvas;
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import android.graphics.ColorFilter;
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import android.graphics.PixelFormat;
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import android.graphics.Rect;
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import android.graphics.drawable.Drawable;
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import androidx.annotation.NonNull;
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public class CrossfadeDrawable extends Drawable {
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private final Drawable topDrawable;
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private final Drawable bottomDrawable;
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private float progress;
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public CrossfadeDrawable(Drawable topDrawable, Drawable bottomDrawable) {
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this.topDrawable = topDrawable;
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this.bottomDrawable = bottomDrawable;
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if (topDrawable != null) {
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topDrawable.setCallback(new Callback() {
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@Override
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public void invalidateDrawable(@NonNull Drawable drawable) {
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if (progress < 1.0f) {
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CrossfadeDrawable.this.invalidateSelf();
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}
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}
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@Override
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public void scheduleDrawable(@NonNull Drawable drawable, @NonNull Runnable runnable, long l) {}
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@Override
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public void unscheduleDrawable(@NonNull Drawable drawable, @NonNull Runnable runnable) {}
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});
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}
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if (bottomDrawable != null) {
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bottomDrawable.setCallback(new Callback() {
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@Override
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public void invalidateDrawable(@NonNull Drawable drawable) {
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if (progress > 0.0f) {
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CrossfadeDrawable.this.invalidateSelf();
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}
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}
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@Override
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public void scheduleDrawable(@NonNull Drawable drawable, @NonNull Runnable runnable, long l) {}
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@Override
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public void unscheduleDrawable(@NonNull Drawable drawable, @NonNull Runnable runnable) {}
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});
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}
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}
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@Override
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protected void onBoundsChange(Rect bounds) {
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topDrawable.setBounds(bounds);
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bottomDrawable.setBounds(bounds);
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}
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@Override
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public void draw(Canvas canvas) {
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if (progress < 1.0f) {
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topDrawable.setAlpha((int) (255f * (1.0f - progress)));
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topDrawable.draw(canvas);
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}
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if (progress > 0.0f) {
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bottomDrawable.setAlpha((int) (255.0f * progress));
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bottomDrawable.draw(canvas);
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}
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}
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@Override
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public void setAlpha(int alpha) {
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}
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@Override
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public void setColorFilter(ColorFilter colorFilter) {
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topDrawable.setColorFilter(colorFilter);
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}
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@Override
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public int getOpacity() {
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return PixelFormat.TRANSLUCENT;
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}
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@Override
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public int getIntrinsicWidth() {
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return topDrawable.getIntrinsicWidth();
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}
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@Override
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public int getIntrinsicHeight() {
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return topDrawable.getIntrinsicHeight();
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}
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public float getProgress() {
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return progress;
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}
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public void setProgress(float value) {
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progress = value;
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}
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} |