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/*!
@file
@author George Evmenov
@date 03/2011
*/
#include "Precompiled.h"
#include "GridManager.h"
#include "SettingsManager.h"
template <> tools::GridManager* MyGUI::Singleton<tools::GridManager>::msInstance = nullptr;
template <> const char* MyGUI::Singleton<tools::GridManager>::mClassTypeName = "GridManager";
namespace tools
{
GridManager::GridManager() :
mGridStep(0)
{
}
GridManager::~GridManager()
{
}
void GridManager::initialise()
{
mGridStep = SettingsManager::getInstance().getValue<int>("Settings/GridStep");
SettingsManager::getInstance().eventSettingsChanged.connect(this, &GridManager::notifySettingsChanged);
}
void GridManager::shutdown()
{
SettingsManager::getInstance().eventSettingsChanged.disconnect(this);
}
void GridManager::notifySettingsChanged(const std::string& _path)
{
if (_path == "Settings/GridStep")
{
mGridStep = SettingsManager::getInstance().getValue<int>("Settings/GridStep");
}
}
int GridManager::toGrid(int _value, GridLine _line) const
{
if (mGridStep < 1)
return _value;
if (_line == Closest)
return (_value + mGridStep / 2) / mGridStep * mGridStep;
else if (_line == Previous)
return (_value - 1) / mGridStep * mGridStep;
else if (_line == Next)
return (_value + mGridStep) / mGridStep * mGridStep;
return _value;
}
}
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