TOPIC:

OnPDFDoubleTapped parameter 4 years 7 months ago #14521

tommaso
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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

                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;

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OnPDFDoubleTapped parameter 4 years 7 months ago #14524

luca.f
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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:

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

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Last edit: by luca.f.

OnPDFDoubleTapped parameter 4 years 7 months ago #14527

tommaso
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Posts: 16
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Ok I've managed my own function to retrieve pdfposition.
Thanks

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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OnPDFDoubleTapped parameter