52 lines
1.5 KiB
Java
52 lines
1.5 KiB
Java
package org.joinmastodon.android.ui.text;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.Rect;
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import android.graphics.drawable.Drawable;
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import android.text.style.ReplacementSpan;
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import org.joinmastodon.android.model.Emoji;
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import androidx.annotation.NonNull;
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import androidx.annotation.Nullable;
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public class CustomEmojiSpan extends ReplacementSpan{
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public final Emoji emoji;
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private Drawable drawable;
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public CustomEmojiSpan(Emoji emoji){
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this.emoji=emoji;
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}
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@Override
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public int getSize(@NonNull Paint paint, CharSequence text, int start, int end, @Nullable Paint.FontMetricsInt fm){
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return Math.round(paint.descent()-paint.ascent());
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}
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@Override
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public void draw(@NonNull Canvas canvas, CharSequence text, int start, int end, float x, int top, int y, int bottom, @NonNull Paint paint){
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int size=Math.round(paint.descent()-paint.ascent());
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if(drawable==null){
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canvas.drawRect(x, top, x+size, top+size, paint);
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}else{
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// AnimatedImageDrawable doesn't like when its bounds don't start at (0, 0)
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Rect bounds=drawable.getBounds();
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int dw=drawable.getIntrinsicWidth();
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int dh=drawable.getIntrinsicHeight();
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if(bounds.left!=0 || bounds.top!=0 || bounds.right!=dw || bounds.left!=dh){
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drawable.setBounds(0, 0, dw, dh);
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}
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canvas.save();
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canvas.translate(x, top);
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canvas.scale(size/(float)dw, size/(float)dh, 0f, 0f);
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drawable.draw(canvas);
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canvas.restore();
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}
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}
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public void setDrawable(Drawable drawable){
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this.drawable=drawable;
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}
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}
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