Arabic language error

[zerox321]

i'm just trying to print arabic content with xprinter xpp810
i used that Code new EscPosCharsetEncoding("UTF-8", 16) , or windows-1256
and the result isn't correct

[Ali-Alshikh-Jasem-1996]

I am facing the same problem, some comments said to convert text to image and print it, if your printer doesn't support utf-8 encoding

[zerox321]

But when i convert to image it's scale type got error

[Ali-Alshikh-Jasem-1996]

this is my code it's run successfully:

Bitmap bitmap = getBitmap("سبحان الله");

private Bitmap getBitmap(String text) {
        if (text == null)
            text = getString(R.string.custom_amount);
        Paint paint = new Paint();
        paint.setTextSize(28);

        Rect bounds = new Rect();
        paint.getTextBounds(text, 0, text.length(), bounds);
        int width = bounds.width();
        int height = bounds.height();

        Bitmap bitmap = Bitmap.createBitmap(width*2, height, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(bitmap);
        canvas.drawColor(Color.WHITE);
        canvas.drawText(text, 20, 20, paint);
        return bitmap;
    }

[DantSu]

Read this issue to split image to keep full size :
#70

[zerox321]

Thank you Eng DantSu ,

[amalnafia]

Eng

can you add code that you used please

[zerox321]

/**
* Asynchronous printing
*/
public AsyncEscPosPrinter getAsyncEscPosPrinter(View containerView ,DeviceConnection printerConnection) {

    AsyncEscPosPrinter printer = new AsyncEscPosPrinter(printerConnection, printerDpi, getPrinterWidthMM(), printerNbrCharactersPerLine);

 

    Bitmap bm = PrinterUtil.screenshot(containerView);
    if (bm == null) {
        startAction();
        return null;
    }

    int width = bm.getWidth(), height = bm.getHeight();

    StringBuilder textToPrint = new StringBuilder();

    for (int y = 0; y < height; y += 256) {
        Bitmap bitmap = Bitmap.createBitmap(bm, 0, y, width, (y + 256 >= height) ? height - y : 256);
        textToPrint.append("[C]<img>").append(PrinterTextParserImg.bitmapToHexadecimalString(printer, bitmap)).append("</img>\n");
    }
    return printer.setTextToPrint(textToPrint.toString());

}

[zerox321]

first step
i try to convert my constraint layout to bitmap -> Bitmap bm = PrinterUtil.screenshot(containerView);
public static Bitmap screenshot(View view) {

    int getMeasuredWidth = view.getMeasuredWidth();
    int getMeasuredHeight = view.getMeasuredHeight();
    if (getMeasuredWidth == 0 || getMeasuredHeight == 0) return null;
    view.setDrawingCacheEnabled(true);
    view.buildDrawingCache();
    Bitmap bitmap = Bitmap.createBitmap(view.getMeasuredWidth(),
            view.getMeasuredHeight(), Bitmap.Config.ARGB_8888);

    Canvas canvas = new Canvas(bitmap);
    Paint paint = new Paint();
    int iHeight = bitmap.getHeight();
    canvas.drawBitmap(bitmap, 0, iHeight, paint);
    view.draw(canvas);
    return bitmap;
}

and i try to split view using this for ->
for (int y = 0; y < height; y += 256) {
Bitmap bitmap = Bitmap.createBitmap(bm, 0, y, width, (y + 256 >= height) ? height - y : 256);
textToPrint.append("[C]").append(PrinterTextParserImg.bitmapToHexadecimalString(printer, bitmap)).append("\n");
}

[zerox321]

last note -> containerView must have white background not transparent

[laithbzour]

@amalnafia
try this you need to convert text to bitmap image .. if image too height then after convert to bitmap split image to chunk

/// split image function
private void splitImage(Bitmap bitmap,SplitBitmapImage spliter) {
Bitmap bmpScale = Bitmap.createScaledBitmap(bitmap, bitmap.getWidth(), bitmap.getHeight(), false);
int rows = bmpScale.getHeight() / 70 + 1;
int cols = 1;
try {
int chunkHeight = bitmap.getHeight() / rows + 1;
int chunkWidth = bitmap.getWidth() / cols;
Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, bitmap.getWidth(), bitmap.getHeight(), false);
int yCoord = 0;
int var8 = 0;

        for(int var9 = rows; var8 < var9; ++var8) {
            int xCoord = 0;
            int var11 = 0;

            for(int var12 = cols; var11 < var12; ++var11) {
                Bitmap bmp = Bitmap.createBitmap(scaledBitmap, xCoord, yCoord, chunkWidth, chunkHeight);

                if (bmp != null && spliter != null) {
                    spliter.bitmpaSpliter(bmp);
                }

                xCoord += chunkWidth;
            }

            yCoord += chunkHeight;
        }
    } catch (Exception var14) {
        var14.printStackTrace();
    }

}

////////////. print function
new Thread(() -> {
try {
EscPosPrinter printer = new EscPosPrinter(MyBluetoothPrintersConnections.selectFirstPairedOne(), 203, 48f, 32);
StringBuilder textToPrint = new StringBuilder();

            splitImage(yourBitmap, text->{
                    textToPrint.append("[C]<img>" + PrinterTextParserImg.bitmapToHexadecimalString(printer, text) + "</img>\n"+
                            "[L]\n");

            });
            textToPrint.append("[C]--------------------------------\n");
            printer.printFormattedTextAndCut(textToPrint.toString());


        } catch (EscPosConnectionException e) {
            e.printStackTrace();
        } catch (EscPosEncodingException e) {
            e.printStackTrace();
        } catch (EscPosBarcodeException e) {
            e.printStackTrace();
        } catch (EscPosParserException e) {
            e.printStackTrace();
        }

}).start();