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Vertical Scroll after zoom using diferentes page size flag

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Vertical Scroll after zoom using diferentes page size flag 4 years 6 months ago #14595

thiagopelikan Topic Author Offline Junior Member Posts: 36 Thank you received: 0	Hi, I'm using dual layout with different page size flag and when I zoom in my page It dont scrolls up and down. The same issue does not occurs with I chance different page size flag to false. Is there anything I could do to fix this? Tks Thiago
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Vertical Scroll after zoom using diferentes page size flag 4 years 6 months ago #14597

thiagopelikan Topic Author Offline Junior Member Posts: 36 Thank you received: 0	What I mean is that if I zoom in from the center of the page I can't reach bottom or top of that page by scrolling up or down. It seems like scrolling vertically(using different page size flag) is blocked by radaae lib.
	Please Log in or Create an account to join the conversation. Last edit: by thiagopelikan.

Vertical Scroll after zoom using diferentes page size flag 4 years 6 months ago #14598

radaee
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Moderator
Posts: 1123
Thank you received: 73

if you mean after zoom, page edge not align on screen for dual page.
plz place code:

    @Override
    public void gl_zoom_confirm(GL10 gl10)
    {
        super.gl_zoom_confirm(gl10);
        m_scroller.computeScrollOffset();
        PDFPos pos = vGetPos(m_vw / 2, m_vh / 2);

        if( m_pages == null || m_doc == null || m_vw <= 0 || m_vh <= 0 || pos.pageno < 0 || pos.pageno >= m_cells.length) return;
        gl_abort_scroll();
        int ccur = 0;
        while( ccur < m_cells.length )
        {
            PDFCell cell = m_cells[ccur];
            if( pos.pageno == cell.page_left || pos.pageno == cell.page_right )
            {
                int left = cell.left;
                int w = cell.right - left;
                int x = left + ((w - m_vw) >> 1);
                int oldx = m_scroller.getCurrX();
                int oldy = m_scroller.getCurrY();
                if(oldx < left - m_page_gap / 2 || oldx + m_vw > cell.right + m_page_gap / 2)
                    m_scroller.startScroll(oldx, oldy, x - oldx, 0);
                break;
            }
            ccur++;
        }
    }

to GLLayoutDual.java
this only for opengl mode.

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Last edit: by radaee.

Vertical Scroll after zoom using diferentes page size flag 4 years 6 months ago #14599

radaee Offline Moderator Posts: 1123 Thank you received: 73	can you attach screen-hot to better explain this issue? do you mean in different height of 2 page in screen, when zoom in very large size, the lower height page can't see on screen?
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Vertical Scroll after zoom using diferentes page size flag 4 years 6 months ago #14600

thiagopelikan
Topic Author
Offline
Junior Member
Posts: 36
Thank you received: 0

I added an attachment to help understand what I'm saying. I do not use opengl layout, I'm using pdfLayout.

This strange behavior only happens with different_page_size flag true, if I use the lib without this flag, the vertical move happens normally, that is, I zoom in from center of the page then I scroll the screen top or bottom to reach the start or the end of the page.

Using different_page_size this do not happen. After zoom, my vertical move is blocked, I still can scroll horizontally but not vertically.