110 lines
2.4 KiB
Java
110 lines
2.4 KiB
Java
package org.thoughtcrime.securesms.components;
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import android.content.Context;
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import android.content.res.TypedArray;
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import android.graphics.Canvas;
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import android.graphics.drawable.Drawable;
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import android.util.AttributeSet;
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import android.widget.ImageView;
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import org.thoughtcrime.securesms.R;
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public class ImageDivet extends ImageView {
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private static final float CORNER_OFFSET = 12F;
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private static final String[] POSITIONS = new String[] {"bottom_right"};
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private Drawable drawable;
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private int drawableIntrinsicWidth;
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private int drawableIntrinsicHeight;
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private int position;
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private float density;
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public ImageDivet(Context context, AttributeSet attrs, int defStyle) {
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super(context, attrs, defStyle);
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initialize(attrs);
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}
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public ImageDivet(Context context, AttributeSet attrs) {
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super(context, attrs);
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initialize(attrs);
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}
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public ImageDivet(Context context) {
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super(context);
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initialize(null);
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}
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private void initialize(AttributeSet attrs) {
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if (attrs != null) {
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position = attrs.getAttributeListValue(null, "position", POSITIONS, -1);
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}
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density = getContext().getResources().getDisplayMetrics().density;
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setDrawable();
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}
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private void setDrawable() {
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int attributes[] = new int[] {R.attr.lower_right_divet};
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TypedArray drawables = getContext().obtainStyledAttributes(attributes);
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switch (position) {
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case 0:
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drawable = drawables.getDrawable(0);
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break;
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}
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drawableIntrinsicWidth = drawable.getIntrinsicWidth();
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drawableIntrinsicHeight = drawable.getIntrinsicHeight();
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drawables.recycle();
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}
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@Override
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public void onDraw(Canvas c) {
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super.onDraw(c);
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c.save();
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computeBounds(c);
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drawable.draw(c);
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c.restore();
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}
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public void setPosition(int position) {
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this.position = position;
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setDrawable();
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invalidate();
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}
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public int getPosition() {
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return position;
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}
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public float getCloseOffset() {
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return CORNER_OFFSET * density;
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}
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public ImageView asImageView() {
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return this;
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}
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public float getFarOffset() {
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return getCloseOffset() + drawableIntrinsicHeight;
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}
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private void computeBounds(Canvas c) {
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final int right = getWidth();
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final int bottom = getHeight();
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switch (position) {
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case 0:
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drawable.setBounds(
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right - drawableIntrinsicWidth,
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bottom - drawableIntrinsicHeight,
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right,
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bottom);
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break;
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}
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}
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}
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