77 lines
2.1 KiB
Java
77 lines
2.1 KiB
Java
package org.thoughtcrime.securesms.components;
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import android.content.Context;
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import android.graphics.drawable.Drawable;
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import android.graphics.drawable.GradientDrawable;
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import android.graphics.drawable.LayerDrawable;
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import org.thoughtcrime.securesms.R;
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public class BubbleDrawableBuilder {
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private int color;
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private int shadowColor;
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private boolean hasShadow = true;
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private boolean[] corners = new boolean[]{true,true,true,true};
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protected BubbleDrawableBuilder() { }
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public BubbleDrawableBuilder setColor(int color) {
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this.color = color;
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return this;
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}
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public BubbleDrawableBuilder setShadowColor(int shadowColor) {
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this.shadowColor = shadowColor;
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return this;
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}
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public BubbleDrawableBuilder setHasShadow(boolean hasShadow) {
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this.hasShadow = hasShadow;
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return this;
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}
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public BubbleDrawableBuilder setCorners(boolean[] corners) {
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this.corners = corners;
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return this;
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}
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public Drawable create(Context context) {
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final GradientDrawable bubble = new GradientDrawable();
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final int radius = context.getResources().getDimensionPixelSize(R.dimen.message_bubble_corner_radius);
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final float[] radii = cornerBooleansToRadii(corners, radius);
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bubble.setColor(color);
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bubble.setCornerRadii(radii);
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if (!hasShadow) {
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return bubble;
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} else {
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final GradientDrawable shadow = new GradientDrawable();
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final int distance = context.getResources().getDimensionPixelSize(R.dimen.message_bubble_shadow_distance);
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shadow.setColor(shadowColor);
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shadow.setCornerRadii(radii);
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final LayerDrawable layers = new LayerDrawable(new Drawable[]{shadow, bubble});
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layers.setLayerInset(1, 0, 0, 0, distance);
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return layers;
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}
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}
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private float[] cornerBooleansToRadii(boolean[] corners, int radius) {
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if (corners == null || corners.length != 4) {
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throw new AssertionError("there are four corners in a rectangle, silly");
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}
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float[] radii = new float[8];
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int i = 0;
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for (boolean corner : corners) {
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radii[i] = radii[i+1] = corner ? radius : 0;
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i += 2;
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}
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return radii;
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}
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}
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