Add procedural borders
bug:7233980
Change-Id: I81008efa3d256061ec27d1ca2333debfb0ab6dd5
diff --git a/src/com/android/gallery3d/filtershow/filters/ImageFilterParametricBorder.java b/src/com/android/gallery3d/filtershow/filters/ImageFilterParametricBorder.java
new file mode 100644
index 0000000..2ead047
--- /dev/null
+++ b/src/com/android/gallery3d/filtershow/filters/ImageFilterParametricBorder.java
@@ -0,0 +1,79 @@
+
+package com.android.gallery3d.filtershow.filters;
+
+import android.graphics.Bitmap;
+import android.graphics.Canvas;
+import android.graphics.Color;
+import android.graphics.Paint;
+import android.graphics.Path;
+import android.graphics.RectF;
+
+public class ImageFilterParametricBorder extends ImageFilter {
+ private int mBorderColor = Color.WHITE;
+ private int mBorderSize = 10;
+ private int mBorderCornerRadius = 10;
+
+ public ImageFilterParametricBorder() {
+ mName = "Border";
+ }
+
+ public ImageFilterParametricBorder(int color, int size, int radius) {
+ setBorder(color, size, radius);
+ }
+
+ @Override
+ public ImageFilter clone() throws CloneNotSupportedException {
+ ImageFilterParametricBorder filter = (ImageFilterParametricBorder) super.clone();
+ filter.setBorder(mBorderColor, mBorderSize, mBorderCornerRadius);
+ return filter;
+ }
+
+ @Override
+ public boolean same(ImageFilter filter) {
+ boolean isBorderFilter = super.same(filter);
+ if (!isBorderFilter) {
+ return false;
+ }
+ ImageFilterParametricBorder borderFilter = (ImageFilterParametricBorder) filter;
+ if (borderFilter.mBorderColor != mBorderColor) {
+ return false;
+ }
+ if (borderFilter.mBorderSize != mBorderSize) {
+ return false;
+ }
+ if (borderFilter.mBorderCornerRadius != mBorderCornerRadius) {
+ return false;
+ }
+ return true;
+ }
+
+ public void setBorder(int color, int size, int radius) {
+ mBorderColor = color;
+ mBorderSize = size;
+ mBorderCornerRadius = radius;
+ }
+
+ @Override
+ public Bitmap apply(Bitmap bitmap, float scaleFactor, boolean highQuality) {
+ Canvas canvas = new Canvas(bitmap);
+ Path border = new Path();
+ border.moveTo(0, 0);
+ int w = bitmap.getWidth();
+ int h = bitmap.getHeight();
+ float bs = mBorderSize * scaleFactor;
+ float r = mBorderCornerRadius * scaleFactor;
+ border.lineTo(0, h);
+ border.lineTo(w, h);
+ border.lineTo(w, 0);
+ border.lineTo(0, 0);
+ border.addRoundRect(new RectF(bs, bs, w - bs, h - bs),
+ r, r, Path.Direction.CW);
+
+ Paint paint = new Paint();
+ paint.setAntiAlias(true);
+ paint.setColor(mBorderColor);
+ canvas.drawPath(border, paint);
+ return bitmap;
+ }
+
+}