Example usage for android.graphics Paint getTextBounds

Introduction

In this page you can find the example usage for android.graphics Paint getTextBounds.

Prototype

public void getTextBounds(char[] text, int index, int count, Rect bounds) 

Source Link

Document

Return in bounds (allocated by the caller) the smallest rectangle that encloses all of the characters, with an implied origin at (0,0).

Usage

From source file:ch.carteggio.ui.ConversationIconLoader.java

/**
 * Calculates a bitmap with a color and a capital letter for contacts without picture.
 *//*from w w  w  . ja  va2 s  . c  om*/
private Bitmap calculateFallbackBitmap(String emails[]) {
    Bitmap result = Bitmap.createBitmap(mPictureSizeInPx, mPictureSizeInPx, Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(result);

    int rgb = CONTACT_DUMMY_COLORS_ARGB[0];

    if (emails.length > 0) {
        calcUnknownContactColor(emails[0]);
    }

    result.eraseColor(rgb);

    String letter = FALLBACK_CONTACT_LETTER;

    Paint paint = new Paint();
    paint.setAntiAlias(true);
    paint.setStyle(Paint.Style.FILL);
    paint.setARGB(255, 255, 255, 255);
    paint.setTextSize(mPictureSizeInPx * 3 / 4); // just scale this down a bit
    Rect rect = new Rect();
    paint.getTextBounds(letter, 0, 1, rect);
    float width = paint.measureText(letter);
    canvas.drawText(letter, (mPictureSizeInPx / 2f) - (width / 2f),
            (mPictureSizeInPx / 2f) + (rect.height() / 2f), paint);

    return result;
}

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From source file:com.sebible.cordova.videosnapshot.VideoSnapshot.java

private void drawTimestamp(Bitmap bm, String prefix, long timeMs, int textSize) {
    float w = bm.getWidth(), h = bm.getHeight();
    float size = (float) (textSize * bm.getWidth()) / 1280;
    float margin = (float) (w < h ? w : h) * 0.05f;

    Canvas c = new Canvas(bm);
    Paint p = new Paint();
    p.setColor(Color.WHITE);//from  w w w.  j  a v a 2  s.  c  o  m
    p.setStrokeWidth((int) (size / 10));
    p.setTextSize((int) size); // Text Size
    p.setXfermode(new PorterDuffXfermode(PorterDuff.Mode.SRC_OVER)); // Text Overlapping Pattern

    long second = (timeMs / 1000) % 60;
    long minute = (timeMs / (1000 * 60)) % 60;
    long hour = (timeMs / (1000 * 60 * 60)) % 24;

    String text = String.format("%s %02d:%02d:%02d", prefix, hour, minute, second);
    Rect r = new Rect();
    p.getTextBounds(text, 0, text.length(), r);
    //c.drawBitmap(originalBitmap, 0, 0, paint);
    c.drawText(text, bm.getWidth() - r.width() - margin, bm.getHeight() - r.height() - margin, p);
}

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From source file:com.gruporaido.tasker_library.util.Helper.java

/**
 * @param drawableId/*from  w w w  . j  a  v a 2  s. co m*/
 * @param text
 * @param textSize
 * @param offsetX
 * @param offsetY
 * @return
 */
public Bitmap drawTextOnDrawable(int drawableId, String text, int textSize, int offsetX, int offsetY) {

    Bitmap bm = BitmapFactory.decodeResource(mContext.getResources(), drawableId).copy(Bitmap.Config.ARGB_8888,
            true);

    Typeface tf = Typeface.create("Helvetica", Typeface.BOLD);

    Paint paint = new Paint();
    paint.setStyle(Paint.Style.FILL);
    paint.setColor(Color.WHITE);
    paint.setTypeface(tf);
    paint.setTextAlign(Paint.Align.CENTER);
    paint.setTextSize(dpToPx(textSize));

    Rect textRect = new Rect();
    paint.getTextBounds(text, 0, text.length(), textRect);

    Canvas canvas = new Canvas(bm);

    //If the text is bigger than the canvas , reduce the font size
    if (textRect.width() >= (canvas.getWidth() - 4)) //the padding on either sides is considered as 4, so as to appropriately fit in the text
        paint.setTextSize(dpToPx(textSize / 2)); //Scaling needs to be used for different dpi's

    //Calculate the positions
    int xPos = (canvas.getWidth() / 2) - 2 + dpToPx(offsetX); //-2 is for regulating the x position offset

    //"- ((paint.descent() + paint.ascent()) / 2)" is the distance from the baseline to the center.
    int yPos = (int) ((canvas.getHeight() / 2) - ((paint.descent() + paint.ascent()) / 2)) + dpToPx(offsetY);

    canvas.drawText(text, xPos, yPos, paint);

    return bm;
}

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From source file:de.stkl.gbgvertretungsplan.fragments.MainFragment.java

private int calculateTableCellWidth(String content, View textContainer) {
    if (!(textContainer instanceof TextView))
        return 0;
    Rect bounds = new Rect();
    Paint textPaint = ((TextView) textContainer).getPaint();
    textPaint.getTextBounds(content, 0, content.length(), bounds);
    //Log.d("calculateTableCellWidth", content+": "+bounds.width());
    //RelativeLayout.MarginLayoutParams params = ((RelativeLayout.MarginLayoutParams)((TextView) textContainer).getLayoutParams());
    int width = /*params.leftMargin + params.rightMargin + */((TextView) textContainer).getTotalPaddingLeft()
            + ((TextView) textContainer).getTotalPaddingRight() + bounds.width();
    return width;
}

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From source file:com.android.gallery3d.data.UriImage.java

public Bitmap drawTextToBitmap(Context gContext, String gText, Bitmap bitmap) {
    Resources resources = gContext.getResources();
    float scale = resources.getDisplayMetrics().density;

    android.graphics.Bitmap.Config bitmapConfig = bitmap.getConfig();
    // set default bitmap config if none
    if (bitmapConfig == null) {
        bitmapConfig = android.graphics.Bitmap.Config.ARGB_8888;
    }/*from   w  w w. j a va 2s.c  o m*/
    // resource bitmaps are imutable, 
    // so we need to convert it to mutable one
    bitmap = bitmap.copy(bitmapConfig, true);

    Canvas canvas = new Canvas(bitmap);
    // new antialised Paint
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    // text color - #3D3D3D
    paint.setColor(Color.rgb(61, 61, 61));
    // text size in pixels
    paint.setTextSize((int) (25 * scale));
    // text shadow
    paint.setShadowLayer(1f, 0f, 1f, Color.WHITE);

    // draw text to the Canvas center
    Rect bounds = new Rect();
    paint.setTextAlign(Align.CENTER);

    paint.getTextBounds(gText, 0, gText.length(), bounds);
    int x = (bitmap.getWidth() - bounds.width()) / 2;
    int y = (bitmap.getHeight() + bounds.height()) / 2;

    canvas.drawText(gText, x * scale, y * scale, paint);

    return bitmap;
}

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From source file:com.codetroopers.shakemytours.ui.activity.TripActivity.java

private Bitmap createMarker(int radius, int strokeWidth, String letter, int strokeColor, int backgroundColor) {
    int width = (radius * 2) + (strokeWidth * 2);
    Bitmap marker = Bitmap.createBitmap(width, width, Bitmap.Config.ARGB_8888);
    Canvas canvas = new Canvas(marker);

    Paint strokePaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    strokePaint.setColor(strokeColor);//from   ww  w.  ja  v a2 s. c  o m
    strokePaint.setShadowLayer(strokeWidth, 1.0f, 1.0f, Color.BLACK);
    canvas.drawCircle(width / 2, width / 2, radius, strokePaint);

    Paint backgroundPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
    backgroundPaint.setColor(backgroundColor);
    canvas.drawCircle(width / 2, width / 2, radius - strokeWidth, backgroundPaint);

    if (letter != null) {
        Rect result = new Rect();
        Paint textPaint = new Paint(Paint.ANTI_ALIAS_FLAG);
        textPaint.setTextAlign(Paint.Align.CENTER);
        textPaint.setTextSize(getResources().getDimensionPixelSize(R.dimen.map_marker_text_size));
        textPaint.setColor(strokeColor);
        textPaint.getTextBounds(letter, 0, letter.length(), result);
        int yOffset = result.height() / 2;

        canvas.drawText(letter, width / 2, (width / 2) + yOffset, textPaint);
    }
    return marker;
}

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From source file:com.slushpupie.deskclock.DeskClock.java

private Rect getBoundingBox(String text, Typeface font, float size) {
    Rect r = new Rect(0, 0, 0, 0);
    float widths[] = new float[text.length()];
    float width = 0;
    Paint paint = new Paint(0);
    paint.setTypeface(font);//from  w w w.  java2s  .co m
    paint.setTextSize(size);
    paint.getTextBounds(text, 0, text.length(), r);
    paint.getTextWidths(text, widths);
    for (float w : widths)
        width += w;
    r.right = (int) width;
    return r;
}

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From source file:org.jraf.android.piclabel.app.form.FormActivity.java

private void drawText(Canvas canvas) {
    Paint paint = new Paint();
    paint.setStyle(Paint.Style.FILL);
    paint.setAntiAlias(true);//from   w  ww  .j av a 2 s.c  o m
    paint.setTypeface(Typeface.createFromAsset(getAssets(), "fonts/" + getSelectedFontName()));

    int textSize = canvas.getHeight() / 35;
    paint.setTextSize(textSize);
    int margin = textSize / 5;

    // Measure date/time
    String dateTime = mEdtDateTime.getText().toString();
    Rect boundsDateTime = new Rect();
    paint.getTextBounds(dateTime, 0, dateTime.length(), boundsDateTime);

    // Measure location
    String location = mEdtLocation.getText().toString();
    Rect boundsLocation = new Rect();
    paint.getTextBounds(location, 0, location.length(), boundsLocation);

    int totalWidth = boundsDateTime.width() + textSize * 2 + boundsLocation.width();
    if (totalWidth > canvas.getWidth()) {
        // Draw on 2 lines

        // Draw a rectangle
        paint.setColor(Color.argb(180, 0, 0, 0));
        canvas.drawRect(0, 0, canvas.getWidth(), -boundsDateTime.top + boundsDateTime.bottom
                + -boundsLocation.top + boundsLocation.bottom + margin * 3, paint);

        // Draw date/time
        paint.setColor(Color.WHITE);
        canvas.drawText(dateTime, margin, margin + -boundsDateTime.top, paint);

        // Draw location
        canvas.drawText(location, canvas.getWidth() - boundsLocation.right - boundsLocation.left - margin,
                margin + -boundsDateTime.top + boundsDateTime.bottom + margin + -boundsLocation.top, paint);

    } else {
        // Draw on 1 line

        // Draw a rectangle
        paint.setColor(Color.argb(180, 0, 0, 0));
        canvas.drawRect(0, 0, canvas.getWidth(),
                margin + Math.max(boundsDateTime.height(), boundsLocation.height()) + margin, paint);

        // Draw date/time
        paint.setColor(Color.WHITE);
        canvas.drawText(dateTime, margin, margin + -boundsDateTime.top, paint);

        // Draw location
        canvas.drawText(location, canvas.getWidth() - boundsLocation.right - boundsLocation.left - margin,
                margin + -boundsLocation.top, paint);
    }
}

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From source file:com.mukesh.OtpView.java

private void drawTextAtBox(Canvas canvas, Paint paint, CharSequence text, int charAt) {
    paint.getTextBounds(text.toString(), charAt, charAt + 1, textRect);
    float cx = itemCenterPoint.x;
    float cy = itemCenterPoint.y;
    float x = cx - Math.abs((float) textRect.width()) / 2 - textRect.left;
    float y = cy + Math.abs((float) textRect.height()) / 2 - textRect.bottom;
    canvas.drawText(text, charAt, charAt + 1, x, y, paint);
}

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From source file:net.gsantner.opoc.util.ContextUtils.java

/**
 * Draw text in the center of the given {@link DrawableRes}
 * This may be useful for e.g. badge counts
 *///from   ww w.  j  av a  2s. co m
public Bitmap drawTextOnDrawable(@DrawableRes int drawableRes, String text, int textSize) {
    Resources resources = _context.getResources();
    float scale = resources.getDisplayMetrics().density;
    Bitmap bitmap = drawableToBitmap(drawableRes);

    bitmap = bitmap.copy(bitmap.getConfig(), true);
    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
    paint.setColor(Color.rgb(61, 61, 61));
    paint.setTextSize((int) (textSize * scale));
    paint.setShadowLayer(1f, 0f, 1f, Color.WHITE);

    Rect bounds = new Rect();
    paint.getTextBounds(text, 0, text.length(), bounds);
    int x = (bitmap.getWidth() - bounds.width()) / 2;
    int y = (bitmap.getHeight() + bounds.height()) / 2;
    canvas.drawText(text, x, y, paint);

    return bitmap;
}

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