package com.marshalchen.common.commonUtils.uiUtils;
import android.graphics.*;
import android.view.View;
import java.io.*;
/**
* Some effect of images
*/
public class ImageUtils {
public static final int LEFT = 0;
public static final int RIGHT = 1;
public static final int TOP = 3;
public static final int BOTTOM = 4;
/**
* Gray Image
*
* @param bmpOriginal
*/
public static Bitmap toGrayscale(Bitmap bmpOriginal) {
int width, height;
height = bmpOriginal.getHeight();
width = bmpOriginal.getWidth();
Bitmap bmpGrayscale = Bitmap.createBitmap(width, height, Bitmap.Config.RGB_565);
Canvas c = new Canvas(bmpGrayscale);
Paint paint = new Paint();
ColorMatrix cm = new ColorMatrix();
cm.setSaturation(0);
ColorMatrixColorFilter f = new ColorMatrixColorFilter(cm);
paint.setColorFilter(f);
c.drawBitmap(bmpOriginal, 0, 0, paint);
return bmpGrayscale;
}
/**
* toRoundCorner
*
* @param bitmap
* @param pixels
* @return
*/
public static Bitmap toRoundCorner(Bitmap bitmap, int pixels) {
Bitmap output = Bitmap
.createBitmap(bitmap.getWidth(), bitmap.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(output);
final int color = 0xff424242;
final Paint paint = new Paint();
final Rect rect = new Rect(0, 0, bitmap.getWidth(), bitmap.getHeight());
final RectF rectF = new RectF(rect);
final float roundPx = pixels;
paint.setAntiAlias(true);
canvas.drawARGB(0, 0, 0, 0);
paint.setColor(color);
canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
paint.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_IN));
canvas.drawBitmap(bitmap, rect, rect, paint);
return output;
}
/**
* Create watermark picture
*
* @param srcBitmap
* @param watermark
* @return
*/
public static Bitmap createBitmapForWatermark(Bitmap srcBitmap, Bitmap watermark) {
if (srcBitmap == null) {
return null;
}
int w = srcBitmap.getWidth();
int h = srcBitmap.getHeight();
int ww = watermark.getWidth();
int wh = watermark.getHeight();
// create the new blank bitmap
Bitmap newb = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
Canvas cv = new Canvas(newb);
// draw src into
cv.drawBitmap(srcBitmap, 0, 0, null);
// draw watermark into
cv.drawBitmap(watermark, w - ww + 5, h - wh + 5, null);
// save all clip
cv.save(Canvas.ALL_SAVE_FLAG);
// store
cv.restore();
return newb;
}
/**
* Picture compose.
*
* @param direction
* @param bitmaps
* @return
*/
public static Bitmap potoMix(int direction, Bitmap... bitmaps) {
if (bitmaps.length <= 0) {
return null;
}
if (bitmaps.length == 1) {
return bitmaps[0];
}
Bitmap newBitmap = bitmaps[0];
for (int i = 1; i < bitmaps.length; i++) {
newBitmap = createBitmapForFotoMix(newBitmap, bitmaps[i], direction);
}
return newBitmap;
}
private static Bitmap createBitmapForFotoMix(Bitmap first, Bitmap second, int direction) {
if (first == null) {
return null;
}
if (second == null) {
return first;
}
int fw = first.getWidth();
int fh = first.getHeight();
int sw = second.getWidth();
int sh = second.getHeight();
Bitmap newBitmap = null;
if (direction == LEFT) {
newBitmap = Bitmap.createBitmap(fw + sw, fh > sh ? fh : sh, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(newBitmap);
canvas.drawBitmap(first, sw, 0, null);
canvas.drawBitmap(second, 0, 0, null);
} else if (direction == RIGHT) {
newBitmap = Bitmap.createBitmap(fw + sw, fh > sh ? fh : sh, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(newBitmap);
canvas.drawBitmap(first, 0, 0, null);
canvas.drawBitmap(second, fw, 0, null);
} else if (direction == TOP) {
newBitmap = Bitmap.createBitmap(sw > fw ? sw : fw, fh + sh, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(newBitmap);
canvas.drawBitmap(first, 0, sh, null);
canvas.drawBitmap(second, 0, 0, null);
} else if (direction == BOTTOM) {
newBitmap = Bitmap.createBitmap(sw > fw ? sw : fw, fh + sh, Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(newBitmap);
canvas.drawBitmap(first, 0, 0, null);
canvas.drawBitmap(second, 0, fh, null);
}
return newBitmap;
}
/**
* Zoom bitmap using Matrix
*
* @param bitmap
* @param width
* @param height
* @return
*/
public static Bitmap zoomBitmap(Bitmap bitmap, float width, float height) {
int w = bitmap.getWidth();
int h = bitmap.getHeight();
Matrix matrix = new Matrix();
float scaleWidth = ((float) width / w);
float scaleHeight = ((float) height / h);
matrix.postScale(scaleWidth, scaleHeight);
Bitmap newbmp = Bitmap.createBitmap(bitmap, 0, 0, w, h, matrix, true);
return newbmp;
}
/**
* Save bitmap to a .png file
*
* @param bitmap
* @param name
*/
public static void saveBitmapToPNG(Bitmap bitmap, String name) throws FileNotFoundException, IOException {
File file = new File(name);
FileOutputStream out = new FileOutputStream(file);
if (bitmap.compress(Bitmap.CompressFormat.PNG, 100, out)) {
out.flush();
out.close();
}
}
/**
* Save bitmap to a .jpeg file
*
* @param bitmap
* @param path
*/
public static void saveJPGE_After(Bitmap bitmap, String path) throws FileNotFoundException, IOException {
File file = new File(path);
FileOutputStream out = new FileOutputStream(file);
if (bitmap.compress(Bitmap.CompressFormat.JPEG, 100, out)) {
out.flush();
out.close();
}
}
/**
* Revert image file to a square with custom size
*
* @param path
* @param width
* @return
* @throws IOException
*/
public static Bitmap revertImageSize(String path, int width) throws IOException {
return revertImageSize(path, width, width);
}
/**
* Revert image file to a square with width and height equal 1000
*
* @param path
* @return
* @throws IOException
*/
public static Bitmap revertImageSize(String path) throws IOException {
return revertImageSize(path, 1000, 1000);
}
/**
* Revert image file to custom size
*
* @param path
* @param width
* @param height
* @return
* @throws IOException
*/
public static Bitmap revertImageSize(String path, int width, int height) throws IOException {
BufferedInputStream in = new BufferedInputStream(new FileInputStream(
new File(path)));
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeStream(in, null, options);
in.close();
int i = 0;
Bitmap bitmap = null;
while (true) {
if ((options.outWidth >> i <= width)
&& (options.outHeight >> i <= height)) {
in = new BufferedInputStream(
new FileInputStream(new File(path)));
options.inSampleSize = (int) Math.pow(2.0D, i);
options.inJustDecodeBounds = false;
bitmap = BitmapFactory.decodeStream(in, null, options);
break;
}
i += 1;
}
return bitmap;
}
/**
* Convert a View to Bitmap using view.getDrawingCache()
*
* @param view
* @return
*/
public static Bitmap convertViewToBitmap(View view) {
view.measure(View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(0, View.MeasureSpec.UNSPECIFIED));
view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight());
view.buildDrawingCache();
Bitmap bitmap = view.getDrawingCache();
return bitmap;
}
/**
* Convert a View to Bitmap using view.draw(new Canvas(bitmap))
*
* @param view
* @param bitmapWidth
* @param bitmapHeight
* @return
*/
public static Bitmap convertViewToBitmapWithCanvas(View view, int bitmapWidth, int bitmapHeight) {
Bitmap bitmap = Bitmap.createBitmap(bitmapWidth, bitmapHeight, Bitmap.Config.ARGB_8888);
view.draw(new Canvas(bitmap));
return bitmap;
}
}