44 lines
1.4 KiB
Java
44 lines
1.4 KiB
Java
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package com.codigoparallevar.minicards;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.Path;
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import android.graphics.Rect;
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import android.support.annotation.NonNull;
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import com.codigoparallevar.minicards.types.Tuple2;
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public class ScrolledCanvas {
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private final Canvas canvas;
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private final int xOrig;
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private final int yOrig;
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public ScrolledCanvas(Canvas canvas, Tuple2<Integer, Integer> viewOrigin) {
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this.canvas = canvas;
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this.xOrig = viewOrigin.item1;
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this.yOrig = viewOrigin.item2;
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}
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public void drawLine(float startX, float startY, float stopX, float stopY,
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@NonNull Paint paint) {
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canvas.drawLine(startX - xOrig, startY - yOrig,
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stopX - xOrig, stopY - yOrig, paint);
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}
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public void drawRect(@NonNull Rect r, @NonNull Paint paint) {
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canvas.drawRect(r.left - xOrig, r.top - yOrig,
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r.right - xOrig, r.bottom - yOrig,
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paint);
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}
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public void drawCircle(float cx, float cy, float radius, @NonNull Paint paint) {
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canvas.drawCircle(cx - xOrig, cy - yOrig,
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radius, paint);
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}
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public void drawPath(@NonNull Path path, @NonNull Paint paint) {
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Path offsetPath = new Path(path);
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offsetPath.offset(-xOrig, -yOrig);
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canvas.drawPath(offsetPath, paint);
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}
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}
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