Example usage for android.graphics Canvas drawBitmap

Introduction

In this page you can find the example usage for android.graphics Canvas drawBitmap.

Prototype

public void drawBitmap(@NonNull Bitmap bitmap, @Nullable Rect src, @NonNull Rect dst, @Nullable Paint paint) 

Source Link

Document

Draw the specified bitmap, scaling/translating automatically to fill the destination rectangle.

Usage

From source file:com.apache.fastandroid.novel.view.readview.PageFactory.java

/**
 * ?//  w  ww. ja  v  a  2 s. c  o m
 *
 * @param canvas
 */
public synchronized void onDraw(Canvas canvas) {
    if (mLines.size() == 0) {
        curEndPos = curBeginPos;
        mLines = pageDown();
    }
    if (mLines.size() > 0) {
        int y = marginHeight + (mLineSpace << 1);
        // 
        if (mBookPageBg != null) {
            canvas.drawBitmap(mBookPageBg, null, rectF, null);
        } else {
            canvas.drawColor(Color.WHITE);
        }
        // 
        canvas.drawText(chaptersList.get(currentChapter - 1).title, marginWidth, y, mTitlePaint);
        y += mLineSpace + mNumFontSize;
        // ?
        for (String line : mLines) {
            y += mLineSpace;
            if (line.endsWith("@")) {
                canvas.drawText(line.substring(0, line.length() - 1), marginWidth, y, mPaint);
                y += mLineSpace;
            } else {
                canvas.drawText(line, marginWidth, y, mPaint);
            }
            y += mFontSize;
        }
        // ??
        if (batteryBitmap != null) {
            canvas.drawBitmap(batteryBitmap, marginWidth + 2,
                    mHeight - marginHeight - DimensUtil.dp2px(mContext, 12), mTitlePaint);
        }

        float percent = (float) currentChapter * 100 / chapterSize;
        canvas.drawText(decimalFormat.format(percent) + "%", (mWidth - percentLen) / 2, mHeight - marginHeight,
                mTitlePaint);

        String mTime = dateFormat.format(new Date());
        canvas.drawText(mTime, mWidth - marginWidth - timeLen, mHeight - marginHeight, mTitlePaint);

        // ?
        SettingManager.getInstance().saveReadProgress(bookId, currentChapter, curBeginPos, curEndPos);
    }
}

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From source file:com.crazyapk.util.bitmap.ImageWorker.java

public Bitmap toRoundCorner(Bitmap bitmap, int pixels) {

    Bitmap output = Bitmap.createBitmap(bitmap.getWidth(), bitmap.getHeight(), 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);// ww w .  j  a v a 2 s  .  c o m
    canvas.drawARGB(0, 0, 0, 0);
    paint.setColor(color);
    canvas.drawRoundRect(rectF, roundPx, roundPx, paint);
    paint.setXfermode(new PorterDuffXfermode(Mode.SRC_IN));
    canvas.drawBitmap(bitmap, rect, rect, paint);
    return output;

}

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From source file:com.netcompss.ffmpeg4android_client.BaseVideo.java

private Bitmap ProcessingBitmapTwo(Bitmap bm1, Bitmap bm2) {
    Bitmap newBitmap = null;/* www.ja  v  a  2  s.  co m*/

    int w;
    if (bm1.getWidth() >= bm2.getWidth()) {
        w = bm1.getWidth();
    } else {
        w = bm2.getWidth();
    }

    int h;
    if (bm1.getHeight() >= bm2.getHeight()) {
        h = bm1.getHeight();
    } else {
        h = bm2.getHeight();
    }

    Config config = bm1.getConfig();
    if (config == null) {
        config = Bitmap.Config.ARGB_4444;
    }

    newBitmap = Bitmap.createBitmap(w, h, config);
    Canvas newCanvas = new Canvas(newBitmap);
    newCanvas.drawColor(Color.WHITE);
    if (bm2.getWidth() == bm2.getHeight()) {
        newCanvas.drawBitmap(bm2, (w - bm2.getWidth()) / 2, (h - bm2.getHeight()) / 2, null);
    } else {
        newCanvas.drawBitmap(bm2, (w / 2) - (bm2.getWidth() / 2), (h / 2) - (bm2.getHeight() / 2), null);
    }

    return newBitmap;
}

---

From source file:com.mappn.gfan.ui.HomeTabActivity.java

private Bitmap drawBitmap(DisplayMetrics dm, Bitmap background, Bitmap corner) {
    Canvas canvas = new Canvas();
    final int height = background.getScaledHeight(dm);
    final int width = background.getScaledWidth(dm);
    Bitmap smallBitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    canvas.setBitmap(smallBitmap);/*from   w w  w  . j  av a  2  s. c  om*/
    Paint textPainter = new Paint(Paint.ANTI_ALIAS_FLAG);
    canvas.drawBitmap(background, 0, 0, textPainter);
    textPainter.setXfermode(new PorterDuffXfermode(Mode.SRC_OVER));
    canvas.drawBitmap(corner, width - corner.getScaledWidth(dm), 0, textPainter);
    canvas.save();
    return smallBitmap;
}

---

From source file:com.dwdesign.tweetings.fragment.UserProfileFragment.java

public static Bitmap createAlphaGradientBitmap(Bitmap orig) {
    final int width = orig.getWidth(), height = orig.getHeight();
    final Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    final Canvas canvas = new Canvas(bitmap);
    final Paint paint = new Paint();
    final LinearGradient shader = new LinearGradient(width / 2, 0, width / 2, height, 0xffffffff, 0x00ffffff,
            Shader.TileMode.CLAMP);// w w  w.j a  va2 s  .  co  m
    paint.setShader(shader);
    paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));
    canvas.drawBitmap(orig, 0, 0, null);
    canvas.drawRect(0, 0, width, height, paint);
    return bitmap;
}

---

From source file:edu.mum.ml.group7.guessasketch.android.EasyPaint.java

public Bitmap toGrayscale(Bitmap bmpOriginal) {
    int width, height;
    height = bmpOriginal.getHeight();//from   w w w.  ja v  a  2 s  .co m
    width = bmpOriginal.getWidth();

    Bitmap bmpGrayscale = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
    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;
}

---

From source file:com.aimfire.gallery.cardboard.PhotoActivity.java

public Bitmap toGrayscale(Bitmap bmpOriginal) {
    int width, height;
    height = bmpOriginal.getHeight();//w  w w .  ja  v a2  s .c o  m
    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);
    bmpOriginal.recycle();
    return bmpGrayscale;
}

---

From source file:com.duy.pascal.ui.view.console.ConsoleView.java

@Override
protected void onDraw(Canvas canvas) {
    int w = getWidth();
    int h = getHeight();

    if (graphicMode) {
        // draw bitmap graph
        if (!mGraphScreen.getGraphBitmap().isRecycled()) {
            canvas.drawBitmap(mGraphScreen.getGraphBitmap(), 0, 0, mGraphScreen.getBackgroundPaint());
        }/*ww w .j  a v a  2 s. com*/
    } else {
        mConsoleScreen.drawBackground(canvas, mConsoleScreen.getLeftVisible(), mConsoleScreen.getTopVisible(),
                w, h);
        drawText(canvas, mConsoleScreen.getLeftVisible(), mConsoleScreen.getTopVisible());
    }

}

---

From source file:com.affectiva.affdexme.MainActivity.java

private void processScreenshot(Bitmap drawingViewBitmap, boolean alsoSaveRaw) {
    if (mostRecentFrame == null) {
        Toast.makeText(getApplicationContext(), "No frame detected, aborting screenshot", Toast.LENGTH_SHORT)
                .show();//from  w  w  w.j  a  v a2s . c om
        return;
    }

    if (!storagePermissionsAvailable) {
        checkForStoragePermissions();
        return;
    }

    Bitmap faceBitmap = ImageHelper.getBitmapFromFrame(mostRecentFrame);

    if (faceBitmap == null) {
        Log.e(LOG_TAG, "Unable to generate bitmap for frame, aborting screenshot");
        return;
    }

    metricViewLayout.setDrawingCacheEnabled(true);
    Bitmap metricsBitmap = Bitmap.createBitmap(metricViewLayout.getDrawingCache());
    metricViewLayout.setDrawingCacheEnabled(false);

    Bitmap finalScreenshot = Bitmap.createBitmap(faceBitmap.getWidth(), faceBitmap.getHeight(),
            Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(finalScreenshot);
    Paint paint = new Paint(Paint.FILTER_BITMAP_FLAG);

    canvas.drawBitmap(faceBitmap, 0, 0, paint);

    float scaleFactor = ((float) faceBitmap.getWidth()) / ((float) drawingViewBitmap.getWidth());
    int scaledHeight = Math.round(drawingViewBitmap.getHeight() * scaleFactor);
    canvas.drawBitmap(drawingViewBitmap, null, new Rect(0, 0, faceBitmap.getWidth(), scaledHeight), paint);

    scaleFactor = ((float) faceBitmap.getWidth()) / ((float) metricsBitmap.getWidth());
    scaledHeight = Math.round(metricsBitmap.getHeight() * scaleFactor);
    canvas.drawBitmap(metricsBitmap, null, new Rect(0, 0, faceBitmap.getWidth(), scaledHeight), paint);

    metricsBitmap.recycle();
    drawingViewBitmap.recycle();

    Date now = new Date();
    String timestamp = DateFormat.format("yyyy-MM-dd_hh-mm-ss", now).toString();
    File pictureFolder = new File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES),
            "AffdexMe");
    if (!pictureFolder.exists()) {
        if (!pictureFolder.mkdir()) {
            Log.e(LOG_TAG, "Unable to create directory: " + pictureFolder.getAbsolutePath());
            return;
        }
    }

    String screenshotFileName = timestamp + ".png";
    File screenshotFile = new File(pictureFolder, screenshotFileName);

    try {
        ImageHelper.saveBitmapToFileAsPng(finalScreenshot, screenshotFile);
    } catch (IOException e) {
        String msg = "Unable to save screenshot";
        Toast.makeText(getApplicationContext(), msg, Toast.LENGTH_SHORT).show();
        Log.e(LOG_TAG, msg, e);
        return;
    }
    ImageHelper.addPngToGallery(getApplicationContext(), screenshotFile);

    if (alsoSaveRaw) {
        String rawScreenshotFileName = timestamp + "_raw.png";
        File rawScreenshotFile = new File(pictureFolder, rawScreenshotFileName);

        try {
            ImageHelper.saveBitmapToFileAsPng(faceBitmap, rawScreenshotFile);
        } catch (IOException e) {
            String msg = "Unable to save screenshot";
            Log.e(LOG_TAG, msg, e);
        }
        ImageHelper.addPngToGallery(getApplicationContext(), rawScreenshotFile);
    }

    faceBitmap.recycle();
    finalScreenshot.recycle();

    String fileSavedMessage = "Screenshot saved to: " + screenshotFile.getPath();
    Toast.makeText(getApplicationContext(), fileSavedMessage, Toast.LENGTH_SHORT).show();
    Log.d(LOG_TAG, fileSavedMessage);
}

---

From source file:com.android.launcher3.Utilities.java

private static Bitmap overlay(Bitmap bmp1, Bitmap bmp2) {
    Bitmap bmOverlay = Bitmap.createBitmap(bmp2.getWidth(), bmp2.getHeight(), bmp1.getConfig());
    float left = (bmp2.getWidth() - (bmp1.getWidth() * ((float) bmp2.getHeight() / (float) bmp1.getHeight())))
            / (float) 2.0;
    float bmp1newW = bmp1.getWidth() * ((float) bmp2.getHeight() / (float) bmp1.getHeight());
    Bitmap bmp1new = Utils.getResizedBitmap(bmp1, bmp2.getHeight(), (int) bmp1newW);
    Canvas canvas = new Canvas(bmOverlay);
    canvas.drawBitmap(bmp1new, left, 0, null);
    canvas.drawBitmap(bmp2, new Matrix(), null);
    return bmOverlay;
}

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