pdf::PDFToc Class Reference

#include <pdf_toc.h>

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Public Member Functions
	PDFToc (PDFController *doc)
	~PDFToc (void)
bool	has_toc ()
TocItem *	get_toc (void)
void	free_toc (TocItem *p_toc)
bool	get_goto_anchor_of_toc_idx (int idx, string &anchor)

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Detailed Description

Definition at line 51 of file pdf_toc.h.

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Constructor & Destructor Documentation

pdf::PDFToc::PDFToc

(

PDFController *

doc

)

Definition at line 85 of file pdf_toc.cpp.

: doc_ctrl(doc)
, toc(0)
{
}

pdf::PDFToc::~PDFToc

(

void

)

Definition at line 91 of file pdf_toc.cpp.

References free_toc().

{
    free_toc(toc);
}

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Member Function Documentation

void pdf::PDFToc::free_toc

(

TocItem *

p_toc

)

Definition at line 276 of file pdf_toc.cpp.

Referenced by ~PDFToc().

{
    //if (!p_toc)
    //{
    //    return;
    //}

    //if (p_toc->first_child)
    //{
    //    free_toc(p_toc->first_child);
    //}
    //else if (p_toc->sibling)
    //{
    //    free_toc(p_toc->sibling);
    //}
    //else 
    //{
    //    delete p_toc;
    //}
    if (p_toc != 0)
    {
        delete p_toc;
    }
}

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bool pdf::PDFToc::get_goto_anchor_of_toc_idx	(	int	idx,
		string &	anchor
	)

Definition at line 303 of file pdf_toc.cpp.

References pdf::TocItem::first_child, pdf::TocItem::goto_anchor, and pdf::TocItem::sibling.

{
    int i = -1;

    typedef list<TocItem *> Stack;
    Stack stack;

    TocItem * cur = toc;
    stack.push_back(cur);

    while (!stack.empty()) 
    {
        // Go down to the highest level.
        cur = stack.back();
        while (cur) 
        {
            // Visit cur
            i++;

            // Condition judgement.
            if (i == idx)
            {
                /*LOGPRINTF("%d %s", idx, cur->goto_anchor.c_str());*/
                anchor = cur->goto_anchor.c_str();
                return true;
            }
            
            stack.push_back(cur->first_child);
            cur = stack.back();
        }
       
        // Popup the empty pointer.
        stack.pop_back();

        // Go to the next sibling.
        if (!stack.empty()) 
        {
            cur = stack.back();
            stack.pop_back();
            stack.push_back(cur->sibling);
        }
    }

    return false;
}

TocItem * pdf::PDFToc::get_toc

(

void

)

Definition at line 115 of file pdf_toc.cpp.

References pdf::TocItem::disconnect(), pdf::TocItem::first_child, pdf::PDFController::get_pdf_doc(), and has_toc().

{
    if (toc)
    {
        // return the toc if it exists.
        return toc;
    }

    if (!has_toc())
    {
        return 0;
    }

    //assert(doc_ctrl != 0);
    if (doc_ctrl == 0)
    {
        return 0;
    }

    Outline * outline = doc_ctrl->get_pdf_doc()->getOutline();
    GooList * items = outline->getItems();

    int idx = 0;
    // construct the invisible root node.
    TocItem root;

    append_toc_children(&root, idx, items);
    toc = root.first_child;

    // disconnect the root node
    root.disconnect();
    return toc;
}

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bool pdf::PDFToc::has_toc

(

)

Definition at line 96 of file pdf_toc.cpp.

References pdf::PDFController::get_pdf_doc(), and LOGPRINTF.

Referenced by get_toc().

{
    Outline * outline = doc_ctrl->get_pdf_doc()->getOutline();
    if (!outline)
    {
        LOGPRINTF("No table of content.");
        return false;
    }

    GooList * items = outline->getItems();
    if (!items || items->getLength() < 1)
    {
        LOGPRINTF("No table of content.");
        return false;
    }

    return true;
}

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The documentation for this class was generated from the following files:

• pdf_toc.h
• pdf_toc.cpp