1package eu.siacs.conversations.ui.text;
 2
 3import android.graphics.Canvas;
 4import android.graphics.Paint;
 5import androidx.annotation.ColorInt;
 6import android.text.Layout;
 7import android.text.TextPaint;
 8import android.text.style.CharacterStyle;
 9import android.text.style.LeadingMarginSpan;
10import android.util.DisplayMetrics;
11import android.util.TypedValue;
12
13public class QuoteSpan extends CharacterStyle implements LeadingMarginSpan {
14
15	private final int color;
16
17	private final int width;
18	private final int paddingLeft;
19	private final int paddingRight;
20
21	private static final float WIDTH_SP = 2f;
22	private static final float PADDING_LEFT_SP = 1.5f;
23	private static final float PADDING_RIGHT_SP = 8f;
24
25	public QuoteSpan(int color, DisplayMetrics metrics) {
26		this.color = color;
27		this.width = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, WIDTH_SP, metrics);
28		this.paddingLeft = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, PADDING_LEFT_SP, metrics);
29		this.paddingRight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, PADDING_RIGHT_SP, metrics);
30	}
31
32	@Override
33	public void updateDrawState(TextPaint tp) {
34		tp.setColor(this.color);
35	}
36
37	@Override
38	public int getLeadingMargin(boolean first) {
39		return paddingLeft + width + paddingRight;
40	}
41
42	@Override
43	public void drawLeadingMargin(Canvas c, Paint p, int x, int dir, int top, int baseline, int bottom,
44			CharSequence text, int start, int end, boolean first, Layout layout) {
45		Paint.Style style = p.getStyle();
46		int color = p.getColor();
47		p.setStyle(Paint.Style.FILL);
48		p.setColor(this.color);
49		c.drawRect(x + dir * paddingLeft, top, x + dir * (paddingLeft + width), bottom, p);
50		p.setStyle(style);
51		p.setColor(color);
52	}
53
54	@ColorInt
55	public int getColor() {
56		return this.color;
57	}
58}