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