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145 lines
4.0 KiB
Java
145 lines
4.0 KiB
Java
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package org.thoughtcrime.securesms.imageeditor.renderers;
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import android.graphics.Canvas;
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import android.graphics.Paint;
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import android.graphics.PointF;
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import android.graphics.RectF;
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import android.os.Parcel;
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import android.support.annotation.NonNull;
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import android.support.annotation.Nullable;
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import org.thoughtcrime.securesms.imageeditor.ColorableRenderer;
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import org.thoughtcrime.securesms.imageeditor.RendererContext;
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/**
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* Renders a {@link AutomaticControlPointBezierLine} with {@link #thickness}, {@link #color} and {@link #cap} end type.
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*/
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public final class BezierDrawingRenderer extends InvalidateableRenderer implements ColorableRenderer {
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private final Paint paint;
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private final AutomaticControlPointBezierLine bezierLine;
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private final Paint.Cap cap;
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@Nullable
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private final RectF clipRect;
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private int color;
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private float thickness;
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private BezierDrawingRenderer(int color, float thickness, @NonNull Paint.Cap cap, @Nullable AutomaticControlPointBezierLine bezierLine, @Nullable RectF clipRect) {
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this.paint = new Paint();
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this.color = color;
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this.thickness = thickness;
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this.cap = cap;
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this.clipRect = clipRect;
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this.bezierLine = bezierLine != null ? bezierLine : new AutomaticControlPointBezierLine();
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updatePaint();
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}
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public BezierDrawingRenderer(int color, float thickness, @NonNull Paint.Cap cap, @Nullable RectF clipRect) {
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this(color, thickness, cap,null, clipRect != null ? new RectF(clipRect) : null);
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}
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@Override
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public int getColor() {
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return color;
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}
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@Override
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public void setColor(int color) {
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if (this.color != color) {
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this.color = color;
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updatePaint();
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invalidate();
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}
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}
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public void setThickness(float thickness) {
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if (this.thickness != thickness) {
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this.thickness = thickness;
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updatePaint();
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invalidate();
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}
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}
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private void updatePaint() {
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paint.setColor(color);
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paint.setStrokeWidth(thickness);
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paint.setStyle(Paint.Style.STROKE);
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paint.setAntiAlias(true);
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paint.setStrokeCap(cap);
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}
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public void setFirstPoint(PointF point) {
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bezierLine.reset();
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bezierLine.addPoint(point.x, point.y);
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invalidate();
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}
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public void addNewPoint(PointF point) {
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if (cap != Paint.Cap.ROUND) {
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bezierLine.addPointFiltered(point.x, point.y, thickness * 0.5f);
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} else {
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bezierLine.addPoint(point.x, point.y);
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}
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invalidate();
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}
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@Override
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public void render(@NonNull RendererContext rendererContext) {
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super.render(rendererContext);
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Canvas canvas = rendererContext.canvas;
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canvas.save();
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if (clipRect != null) {
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canvas.clipRect(clipRect);
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}
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int alpha = paint.getAlpha();
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paint.setAlpha(rendererContext.getAlpha(alpha));
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bezierLine.draw(canvas, paint);
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paint.setAlpha(alpha);
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rendererContext.canvas.restore();
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}
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@Override
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public boolean hitTest(float x, float y) {
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return false;
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}
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public static final Creator<BezierDrawingRenderer> CREATOR = new Creator<BezierDrawingRenderer>() {
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@Override
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public BezierDrawingRenderer createFromParcel(Parcel in) {
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int color = in.readInt();
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float thickness = in.readFloat();
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Paint.Cap cap = Paint.Cap.values()[in.readInt()];
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AutomaticControlPointBezierLine bezierLine = in.readParcelable(AutomaticControlPointBezierLine.class.getClassLoader());
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RectF clipRect = in.readParcelable(RectF.class.getClassLoader());
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return new BezierDrawingRenderer(color, thickness, cap, bezierLine, clipRect);
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}
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@Override
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public BezierDrawingRenderer[] newArray(int size) {
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return new BezierDrawingRenderer[size];
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}
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};
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@Override
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public int describeContents() {
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return 0;
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}
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@Override
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public void writeToParcel(Parcel dest, int flags) {
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dest.writeInt(color);
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dest.writeFloat(thickness);
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dest.writeInt(cap.ordinal());
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dest.writeParcelable(bezierLine, flags);
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dest.writeParcelable(clipRect, flags);
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}
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}
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