pdf::PDFLibrary Class Reference

#include <pdf_library.h>

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Public Member Functions
	~PDFLibrary ()
Thread &	get_thread ()
	get the instance of thread
bool	make_enough_memory (PDFController *doc_ptr, const int page_num, const int length)
	make enough memory for some one document
void	add_document (PDFController *doc_ptr)
	add new document
void	remove_document (PDFController *doc_ptr)
	remove the existing document
void	remove_tasks_by_document (PDFController *doc)
	remove all of the tasks related to a document
void	thread_add_render_task (Task *task, bool prerender, bool abort_current)
	handle adding render task
void	thread_add_search_task (Task *task)
	handle adding search task
void	thread_cancel_render_tasks (void *user_data)
	clear all of the render tasks
Static Public Member Functions
static PDFLibrary &	instance ()
	get the instance of library

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Detailed Description

Definition at line 35 of file pdf_library.h.

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Constructor & Destructor Documentation

pdf::PDFLibrary::~PDFLibrary

(

)

Definition at line 61 of file pdf_library.cpp.

References pdf::Thread::stop().

{
    // stop the task executing thread
    thread.stop();
}

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Member Function Documentation

void pdf::PDFLibrary::add_document

(

PDFController *

doc_ptr

)

add new document

Definition at line 111 of file pdf_library.cpp.

Referenced by pdf::PDFController::PDFController().

{
    try_start_thread();
    docs.push_back(doc_ptr);
}

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Thread& pdf::PDFLibrary::get_thread

(

)

[inline]

get the instance of thread

Definition at line 44 of file pdf_library.h.

Referenced by pdf::PDFController::abort_search(), thread_add_render_task(), thread_add_search_task(), and thread_cancel_render_tasks().

{ return thread; }

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PDFLibrary & pdf::PDFLibrary::instance

(

)

[static]

get the instance of library

Definition at line 67 of file pdf_library.cpp.

Referenced by pdf::PDFController::abort_search(), pdf::PDFController::close(), pdf::PDFRenderTask::execute(), pdf::PDFController::PDFController(), pdf::PDFRenderer::post_render_task(), pdf::PDFController::search_all(), pdf::PDFController::search_next(), pdf::PDFController::set_memory_limit(), and pdf::PDFController::~PDFController().

{
    static PDFLibrary lib;
    return lib;
}

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bool pdf::PDFLibrary::make_enough_memory	(	PDFController *	doc_ptr,
		const int	page_num,
		const int	length
	)

make enough memory for some one document

Definition at line 86 of file pdf_library.cpp.

References pdf::get_system_free_memory(), and WARNPRINTF.

{
    if (length <= 0)
    {
        WARNPRINTF("Should NOT make enough memory by length:%d", length);
        return false;
    }

    // check the free memory in system
    unsigned long free_mem = get_system_free_memory();
    if (free_mem < static_cast<unsigned long>(length << 1))
    {
        // release all of the cached bitmaps
        DocumentsIter idx = docs.begin();
        for (; idx != docs.end(); ++idx)
        {
            (*idx)->clear_cached_bitmaps();
        }
    }

    return doc_ptr->make_enough_memory(page_num, length);
}

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void pdf::PDFLibrary::remove_document

(

PDFController *

doc_ptr

)

remove the existing document

Definition at line 122 of file pdf_library.cpp.

Referenced by pdf::PDFController::~PDFController().

{
    DocumentsIter idx = std::find(docs.begin(), docs.end(), doc_ptr);
    if (idx != docs.end())
    {
        docs.erase(idx);
    }
    try_stop_thread();
}

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void pdf::PDFLibrary::remove_tasks_by_document

(

PDFController *

doc

)

remove all of the tasks related to a document

Definition at line 117 of file pdf_library.cpp.

References pdf::Thread::cancel_tasks().

Referenced by pdf::PDFController::close().

{
    thread.cancel_tasks(doc);
}

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void pdf::PDFLibrary::thread_add_render_task	(	Task *	task,
		bool	prerender,
		bool	abort_current
	)

handle adding render task

Definition at line 132 of file pdf_library.cpp.

References pdf::Thread::append_task(), get_thread(), and pdf::Thread::prepend_task().

Referenced by pdf::PDFRenderer::post_render_task().

{
    if (prerender)
    {
        get_thread().append_task(task);
    }
    else
    {
        // post the rendering task into the thread's task list
        get_thread().prepend_task(task, abort_current);
    }
}

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void pdf::PDFLibrary::thread_add_search_task

(

Task *

task

)

handle adding search task

Definition at line 145 of file pdf_library.cpp.

References get_thread(), and pdf::Thread::prepend_task().

Referenced by pdf::PDFController::search_all(), and pdf::PDFController::search_next().

{
    get_thread().prepend_task(task, true);
}

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void pdf::PDFLibrary::thread_cancel_render_tasks

(

void *

user_data

)

clear all of the render tasks

Definition at line 150 of file pdf_library.cpp.

References pdf::Thread::clear_all(), get_thread(), and pdf::TASK_RENDER.

Referenced by pdf::PDFRenderer::post_render_task(), and pdf::PDFController::set_memory_limit().

{
    get_thread().clear_all(user_data, TASK_RENDER);
}

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

• pdf_library.h
• pdf_library.cpp