GamePlay/gameplay/src/ControlFactory.cpp

#include "Base.h"
#include "ControlFactory.h"
#include "Label.h"
#include "Button.h"
#include "CheckBox.h"
#include "RadioButton.h"
#include "Container.h"
#include "Slider.h"
#include "TextBox.h"
#include "JoystickControl.h"
#include "ImageControl.h"

namespace gameplay
{

static ControlFactory* __controlFactory = NULL;

ControlFactory::ControlFactory() 
{
	registerStandardControls();
}

ControlFactory::ControlFactory(const ControlFactory& copy)
{
}

ControlFactory::~ControlFactory() 
{
}

void ControlFactory::finalize()
{
    SAFE_DELETE(__controlFactory);
}

ControlFactory* ControlFactory::getInstance() 
{
	if (__controlFactory == NULL)
		__controlFactory = new ControlFactory();
	return __controlFactory;
}

bool ControlFactory::registerCustomControl(const char* typeName, ControlActivator activator)
{
    std::string upper(typeName);
    std::transform(upper.begin(), upper.end(), upper.begin(), (int(*)(int))toupper);

	if (_registeredControls.find(upper) != _registeredControls.end())
		return false;

	_registeredControls[upper] = activator;
	return true;
}

void ControlFactory::unregisterCustomControl(const char* typeName)
{
    std::string upper(typeName);
    std::transform(upper.begin(), upper.end(), upper.begin(), (int(*)(int))toupper);

	std::map<std::string, ControlActivator>::iterator it;
	if ((it = _registeredControls.find(upper)) != _registeredControls.end())
	{
		_registeredControls.erase(it);
	}
}

Control *ControlFactory::createControl(const char* typeName, Theme::Style* style, Properties* properties)
{
    std::string upper(typeName);
    std::transform(upper.begin(), upper.end(), upper.begin(), (int(*)(int))toupper);

    std::map<std::string, ControlActivator>::iterator it = _registeredControls.find(upper);
    if (it == _registeredControls.end())
		return NULL;

    return (*it->second)(style, properties);
}

void ControlFactory::registerStandardControls() 
{
    registerCustomControl("LABEL", &Label::create);
    registerCustomControl("BUTTON", &Button::create);
    registerCustomControl("CHECKBOX", &CheckBox::create);
    registerCustomControl("RADIOBUTTON", &RadioButton::create);
    registerCustomControl("CONTAINER", &Container::create);
    registerCustomControl("SLIDER", &Slider::create);
    registerCustomControl("TEXTBOX", &TextBox::create);
    registerCustomControl("JOYSTICK", &JoystickControl::create); // convenience alias
    registerCustomControl("JOYSTICKCONTROL", &JoystickControl::create);
    registerCustomControl("IMAGE", &ImageControl::create);  // convenience alias
    registerCustomControl("IMAGECONTROL", &ImageControl::create);
}

}