text::TextController Class Reference

#include <text_controller.h>

Collaboration diagram for text::TextController:

[legend]

Public Member Functions
	TextController (TextModel *_model, TextView *_view)
	Constructors and destructors.
	~TextController ()
void	start ()
	Start working thread.
void	stop ()
	Stop working thread.
void	render (unsigned int id, unsigned int page_index, void *data, unsigned char *bmp)
	Render specified page.
void	render (unsigned int id, const Position &start_pos, void *data, unsigned char *bmp)
	Render a page start with start_pos.
void	paginate (const Position &start, bool send_start_notification)
	Paginate.
void	search (SearchContext *sc)
	Search specified pattern in text model.
void	pause_pagination ()
	Pause pagination.
void	restart_pagination ()
	Restart pagination again after it was paused.

---

Detailed Description

Definition at line 37 of file text_controller.h.

---

Constructor & Destructor Documentation

text::TextController::TextController	(	TextModel *	_model,
		TextView *	_view
	)

Constructors and destructors.

Definition at line 35 of file text_controller.cpp.

References text::TextView::set_controller().

: model(_model)
, view(_view)
, pagination_paused(false)
{
    // Set controller for view.
    view->set_controller(this);
}

Here is the call graph for this function:

text::TextController::~TextController

(

)

Definition at line 44 of file text_controller.cpp.

{
}

---

Member Function Documentation

void text::TextController::paginate	(	const Position &	start,
		bool	send_start_notification
	)

Paginate.

Definition at line 80 of file text_controller.cpp.

References text::PaginationTask::abort_signal, utils::Signal< A1, A2, A3, A4, A5 >::add_slot(), common::Thread::append_task(), and text::TextView::pagination_end_signal.

Referenced by text::TextView::render(), and restart_pagination().

{
    pagination_pending = true;
    PaginationTask *task = new PaginationTask(view, start, !send_start_notification);
    task->abort_signal.add_slot(this, &TextController::on_pagination_aborted);
    view->pagination_end_signal.add_slot(this, &TextController::on_pagination_finished);
    thread.append_task(task);
}

Here is the call graph for this function:

Here is the caller graph for this function:

void text::TextController::pause_pagination

(

)

Pause pagination.

Called when document window is deactivated

Definition at line 112 of file text_controller.cpp.

References utils::Signal< A1, A2, A3, A4, A5 >::broadcast(), text::TextView::get_current_page_index(), text::TextView::get_page_count(), text::TextView::pagination_end_signal, common::Thread::prepend_task(), total_pages, and TRACEFUNCTION.

{
    TRACEFUNCTION();

    if (pagination_pending)
    {
        pagination_paused = true;
        
        unsigned int total_pages = view->get_page_count();
        unsigned int current_page = view->get_current_page_index();
        
        // Reporting pagination done to UDS through our internal pagination end signal
        // UDS probably doesn't receive this event because the document window is
        // about to be deactivated (hence, UDS will unsubscribe from plugin events),
        // however I still think it is good practice to try to notify UDS anyway.
        // [MdB]
        view->pagination_end_signal.broadcast(current_page, total_pages);  
    
        PaginationAbortTask *task = new PaginationAbortTask(view);
        thread.prepend_task(task, true /* Cancel running task */);
    }
}

Here is the call graph for this function:

void text::TextController::render	(	unsigned int	id,
		const Position &	start_pos,
		void *	data,
		unsigned char *	bmp
	)

Render a page start with start_pos.

Definition at line 73 of file text_controller.cpp.

References text::TextView::check_page_table(), LOGPRINTF, and common::Thread::prepend_task().

{
    LOGPRINTF("About to launch render task.");
    view->check_page_table(start_pos);
    thread.prepend_task(new RenderTask(id, view, start_pos, data, bmp), true);
}

Here is the call graph for this function:

void text::TextController::render	(	unsigned int	id,
		unsigned int	page_index,
		void *	data,
		unsigned char *	bmp
	)

Render specified page.

Definition at line 60 of file text_controller.cpp.

References ERRORPRINTF, and text::TextView::get_anchor_by_page().

Referenced by main(), and widget_event_handler().

{
    Position start_pos;
    if (view->get_anchor_by_page(page_index, start_pos))
    {
        render(id, start_pos, data, bmp);
    }
    else
    {
        ERRORPRINTF("Can't render page %d because it does not exist.\n", page_index);
    }
}

Here is the call graph for this function:

Here is the caller graph for this function:

void text::TextController::restart_pagination

(

)

Restart pagination again after it was paused.

Called when document windows is activated again

Definition at line 135 of file text_controller.cpp.

References text::TextView::check_page_table(), paginate(), and TRACEFUNCTION.

{
     TRACEFUNCTION();

   
    // Only restart pagination if there is a need
    if (pagination_pending)
    {
        pagination_paused = false;

        Position start_pos;
        view->check_page_table(start_pos);
        paginate(start_pos, false /* don't send pagination start notification */);
    }
}

Here is the call graph for this function:

void text::TextController::search

(

SearchContext *

sc

)

Search specified pattern in text model.

Parameters:

search_context

Search type and search criteria.

Definition at line 152 of file text_controller.cpp.

References text::SearchTask::abort_signal, utils::Signal< A1, A2, A3, A4, A5 >::add_slot(), and common::Thread::prepend_task().

Referenced by main().

{
    SearchTask* task = new SearchTask(model, search_context);
    task->abort_signal.add_slot(this, &TextController::on_search_aborted);
    thread.prepend_task(task, true);
}

Here is the call graph for this function:

Here is the caller graph for this function:

void text::TextController::start

(

)

Start working thread.

Definition at line 48 of file text_controller.cpp.

References common::Thread::start().

{
    // Launch worker thread.
    thread.start();
}

Here is the call graph for this function:

void text::TextController::stop

(

void

)

Stop working thread.

Definition at line 54 of file text_controller.cpp.

References common::Thread::stop().

{
    // Stop worker thread, wait until all tasks done.
    thread.stop();
}

Here is the call graph for this function:

---

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

• text_controller.h
• text_controller.cpp