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imagecache.cpp
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imagecache.cpp
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#include "imagecache.h"
#include "settingsmanager.h"
#include <QDirIterator>
#include <QDebug>
#include <stdexcept>
ImageCache* ImageCache::instance = NULL;
ImageCache* ImageCache::init()
{
if (instance != NULL)
throw new std::runtime_error("ImageCache is already inited.");
instance = new ImageCache();
return instance;
}
ImageCache* ImageCache::getInstance()
{
if (instance == NULL)
throw new std::runtime_error("ImageCache is not inited.");
return instance;
}
ImageCache::ImageCache()
{
loadTypeFromFolder(SpriteImg, "sprites");
loadTypeFromFolder(TileOverlay, "tileoverlays");
loadTypeFromFolder(TileOverride, "tileoverrides");
loadTypeFromFolder(EntranceImg, "entrances");
loadTypeFromFolder(TileCollision, "tilecollisions");
}
ImageCache::~ImageCache()
{
for (int i = cache.size() - 1; i >= 0; i--)
delete cache.values().at(i);
}
QPixmap ImageCache::get(CacheImgType type, QString name)
{
return cache.value(type)->value(name);
}
void ImageCache::loadTypeFromFolder(CacheImgType type, QString folder)
{
QHash<QString, QPixmap>* imgCache = new QHash<QString, QPixmap>();
QDirIterator imgIterator(SettingsManager::getInstance()->dataPath(folder + "/"), QStringList() << "*.png", QDir::Files, QDirIterator::Subdirectories);
quint32 folderLength = imgIterator.path().length();
while (imgIterator.hasNext())
{
QString path = imgIterator.next();
imgCache->insert(path.mid(folderLength), QPixmap(path));
}
cache.insert(type, imgCache);
}