Software Público Brasileiro

/***************************************************************************
 *   Copyright (C) 2005 by Jeff Ferr                                       *
 *   root@sat                                                              *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 ***************************************************************************/
#include "Stdafx.h"
#include "jslidercomponent.h"
#include "jdebug.h"

namespace jgui {

SliderComponent::SliderComponent(int x, int y, int width, int height):
   	Component(x, y, width, height)
{
	jcommon::Object::SetClassName("jgui::SliderComponent");

	_index = 0;
	_value = 0;
	_minimum = 0;
	_maximum = 100;
	_minimum_tick = 1;
	_maximum_tick = 10;
	_type = JSO_HORIZONTAL;
	// _type = JSO_VERTICAL;
}

SliderComponent::~SliderComponent()
{
}

void SliderComponent::SetScrollOrientation(jscroll_orientation_t type)
{
	if (_type == type) {
		return;
	}

	_type = type;

	Repaint();
}

jscroll_orientation_t SliderComponent::GetScrollOrientation()
{
	return _type;
}

int SliderComponent::GetValue()
{
	return _value;
}

void SliderComponent::SetValue(int i)
{
	if (_value == i) {
		return;
	}

	if (i < _minimum) {
		i = _minimum;
	}

	if (i > _maximum) {
		i = _maximum;
	}
		
	{
		jthread::AutoLock lock(&_component_mutex);

		int diff = i-_value;

		_value = i;

		if (diff > _minimum_tick) {
			DispatchAdjustmentEvent(new AdjustmentEvent(this, JAT_BLOCK_INCREMENT, _value));
		} else if (diff < -_minimum_tick) {
			DispatchAdjustmentEvent(new AdjustmentEvent(this, JAT_BLOCK_DECREMENT, _value));
		} else if (diff > 0 && diff <= _minimum_tick) {
			DispatchAdjustmentEvent(new AdjustmentEvent(this, JAT_UNIT_INCREMENT, _value));
		} else if (diff < 0 && diff >= -_minimum_tick) {
			DispatchAdjustmentEvent(new AdjustmentEvent(this, JAT_UNIT_DECREMENT, _value));
		}
	}

	Repaint();
}


void SliderComponent::SetRange(int minimum, int maximum)
{
	_minimum = minimum;
	_maximum = maximum;
}

int SliderComponent::GetMinimum()
{
	return _minimum;
}

int SliderComponent::GetMaximum()
{
	return _maximum;
}

void SliderComponent::SetMinimum(int i)
{
	_minimum = i;
}

void SliderComponent::SetMaximum(int i)
{
	_maximum = i;
}

int SliderComponent::GetMinorTickSpacing()
{
	return _minimum_tick;
}

int SliderComponent::GetMajorTickSpacing()
{
	return _maximum_tick;
}

void SliderComponent::SetMinorTickSpacing(int i)
{
	_minimum_tick = i;
}

void SliderComponent::SetMajorTickSpacing(int i)
{
	_maximum_tick = i;
}

void SliderComponent::RegisterAdjustmentListener(AdjustmentListener *listener)
{
	if (listener == NULL) {
		return;
	}

	if (std::find(_adjust_listeners.begin(), _adjust_listeners.end(), listener) == _adjust_listeners.end()) {
		_adjust_listeners.push_back(listener);
	}
}

void SliderComponent::RemoveAdjustmentListener(AdjustmentListener *listener)
{
	if (listener == NULL) {
		return;
	}

	std::vector<AdjustmentListener *>::iterator i = std::find(_adjust_listeners.begin(), _adjust_listeners.end(), listener);

	if (i != _adjust_listeners.end()) {
		_adjust_listeners.erase(i);
	}
}

void SliderComponent::DispatchAdjustmentEvent(AdjustmentEvent *event)
{
	if (event == NULL) {
		return;
	}

	int k = 0,
			size = (int)_adjust_listeners.size();

	while (k++ < (int)_adjust_listeners.size()) {
		_adjust_listeners[k-1]->AdjustmentValueChanged(event);

		if (size != (int)_adjust_listeners.size()) {
			size = (int)_adjust_listeners.size();

			k--;
		}
	}

	/*
	for (std::vector<AdjustmentListener *>::iterator i=_adjust_listeners.begin(); i!=_adjust_listeners.end(); i++) {
		(*i)->AdjustmentValueChanged(event);
	}
	*/

	delete event;
}

std::vector<AdjustmentListener *> & SliderComponent::GetAdjustmentListeners()
{
	return _adjust_listeners;
}

}