text::SearchTask Class Reference

Search task definition for text plugin. The search task is responsible for find the previous/next/all occurrence of specified pattern. More...

#include <text_tasks.h>

Inheritance diagram for text::SearchTask:

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Collaboration diagram for text::SearchTask:

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Public Member Functions
	SearchTask (TextModel *_model, SearchContext *_sc)
	Constructors and destructors.
virtual	~SearchTask ()
virtual void	execute ()
	Execute task with task context.
Data Fields
utils::Signal< SearchContext * >	abort_signal

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Detailed Description

Search task definition for text plugin. The search task is responsible for find the previous/next/all occurrence of specified pattern.

Definition at line 144 of file text_tasks.h.

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Constructor & Destructor Documentation

text::SearchTask::SearchTask	(	TextModel *	_model,
		SearchContext *	_sc
	)

Constructors and destructors.

Definition at line 159 of file text_tasks.cpp.

: text_model(_model), sc(_sc)
{
}

text::SearchTask::~SearchTask

(

)

[virtual]

Definition at line 164 of file text_tasks.cpp.

{
}

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Member Function Documentation

void text::SearchTask::execute

(

)

[virtual]

Execute task with task context.

Implements common::Task.

Definition at line 168 of file text_tasks.cpp.

References abort_signal, utils::Signal< A1, A2, A3, A4, A5 >::broadcast(), text::TextModel::get_aborting_search_task_id(), common::Task::is_aborted(), LOGPRINTF, result_ranges, text::TextModel::search(), text::TextModel::search_done_signal, and text::SearchContext::search_id.

{
    std::vector<Range> result_ranges;
    bool search_done = false;
    while (!is_aborted() &&
           text_model->get_aborting_search_task_id() != sc->search_id)
    {
        if (text_model->search(result_ranges, sc))
        {
            // We reached the start/end of the document, 
            // or we find an occurrence if the SearchType is SEARCH_NEXT.
            search_done = true;
            break;
        }
    }

    if (is_aborted())
    {
        LOGPRINTF("Search task is aborted by another task...");
        abort_signal.broadcast(sc);
    }

    if (search_done)
    {
        // Tell listeners search task is done.
        text_model->search_done_signal.broadcast(result_ranges, sc);
    }
    else
    {
        // We are aborted, do nothing.
        LOGPRINTF("Search task is aborted by user...");
    }
}

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Field Documentation

utils::Signal<SearchContext*> text::SearchTask::abort_signal

Definition at line 152 of file text_tasks.h.

Referenced by execute(), and text::TextController::search().

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

• text_tasks.h
• text_tasks.cpp