OnPDFDoubleTapped parameter

tommaso
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IP: 79.60.238.187 6 years 8 months ago #14521 by tommaso

OnPDFDoubleTapped parameter was created by tommaso

Hi,
I need to read pdf clicked text (With com.radaee.pdf.Page -> "objs") but I've a problem with pdf position,
On OnPDFDoubleTapped event I receive x,y wrong position,
when device is in portrait the position seems to be upsidedown, when in landscape seems correct but page number returned is always the left page regardless of what I click(com.radaee.reader.PDFGLLayoutView -> "PDFGetDoc").

I've found that vGetPos function return correct values but I can't use it without change library and in any case i can't return the right page Nr from double click event

Have any hint
Thanks in advance
Regards Tommaso Honoré

Code:

                final int x = (int)e.getX();
                final int y = (int)e.getY();
                final GLLayout.PDFPos pos = m_layout.vGetPos(x, y);
                m_layout.vSetPos(x, y,  pos);
                Log.e("", "Pagina " + pos.pageno + ".");

                if (m_listener == null || !m_listener.OnPDFDoubleTapped(pos.x, pos.y))
                    return false;

luca.f
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IP: 212.97.62.176 6 years 8 months ago - 6 years 8 months ago #14524 by luca.f

Replied by luca.f on topic OnPDFDoubleTapped parameter

Dear user,
the coordinates you are receiving from the OnPDFDoubleTapped event are screen coordinates, which always have the origin point in the upper left corner.
PDF instead uses a coordinate system with the origin point located in the bottom left corner.
vGetPos already does this conversion for you, and always returns the correct point/page in pdf coordinates, even when it's zoomed/offset.
Just use:

Code:

final int x = (int)e.getX();
final int y = (int)e.getY();
final GLLayout.PDFPos pos = m_layout.vGetPos(x, y);

and then retreive the vaules with pos.x, pos.y and pos.pageno

Last edit: 6 years 8 months ago by luca.f.

tommaso
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IP: 79.60.238.187 6 years 8 months ago #14527 by tommaso

Replied by tommaso on topic OnPDFDoubleTapped parameter

Ok I've managed my own function to retrieve pdfposition.
Thanks

Code:

public GLLayout.PDFPos MyGetPos(float posX, float posY) {
        //Trasformo Coordinate view in Coordinate Pdf.
        final int x = (int)posX;
        final int y = (int)posY;
        final GLLayout.PDFPos pos = m_layout.vGetPos(x, y);
        return pos;
    }

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