1 files changed, 52 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/ui/text/QuoteSpan.java b/src/main/java/eu/siacs/conversations/ui/text/QuoteSpan.java
new file mode 100644
index 00000000..272d794e
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/ui/text/QuoteSpan.java
@@ -0,0 +1,52 @@
+package eu.siacs.conversations.ui.text;
+
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.text.Layout;
+import android.text.TextPaint;
+import android.text.style.CharacterStyle;
+import android.text.style.LeadingMarginSpan;
+import android.util.DisplayMetrics;
+import android.util.TypedValue;
+
+public class QuoteSpan extends CharacterStyle implements LeadingMarginSpan {
+
+	private final int color;
+
+	private final int width;
+	private final int paddingLeft;
+	private final int paddingRight;
+
+	private static final float WIDTH_SP = 2f;
+	private static final float PADDING_LEFT_SP = 1.5f;
+	private static final float PADDING_RIGHT_SP = 8f;
+
+	public QuoteSpan(int color, DisplayMetrics metrics) {
+		this.color = color;
+		this.width = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, WIDTH_SP, metrics);
+		this.paddingLeft = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, PADDING_LEFT_SP, metrics);
+		this.paddingRight = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, PADDING_RIGHT_SP, metrics);
+	}
+
+	@Override
+	public void updateDrawState(TextPaint tp) {
+		tp.setColor(this.color);
+	}
+
+	@Override
+	public int getLeadingMargin(boolean first) {
+		return paddingLeft + width + paddingRight;
+	}
+
+	@Override
+	public void drawLeadingMargin(Canvas c, Paint p, int x, int dir, int top, int baseline, int bottom,
+			CharSequence text, int start, int end, boolean first, Layout layout) {
+		Paint.Style style = p.getStyle();
+		int color = p.getColor();
+		p.setStyle(Paint.Style.FILL);
+		p.setColor(this.color);
+		c.drawRect(x + dir * paddingLeft, top, x + dir * (paddingLeft + width), bottom, p);
+		p.setStyle(style);
+		p.setColor(color);
+	}
+}
+\ No newline at end of file