axmol/cocos2dx/sprite_nodes/CCSpriteFrameCache.cpp

/****************************************************************************
Copyright (c) 2010 cocos2d-x.org

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****************************************************************************/

#include "platform/CCNS.h"
#include "ccMacros.h"
#include "CCTextureCache.h"
#include "CCSpriteFrameCache.h"
#include "CCSpriteFrame.h"
#include "CCSprite.h"
#include "support/TransformUtils.h"
#include "CCXFileUtils.h"
#include "NSString.h"

namespace   cocos2d {

static CCSpriteFrameCache *pSharedSpriteFrameCache = NULL;

CCSpriteFrameCache* CCSpriteFrameCache::sharedSpriteFrameCache(void)
{
	if (! pSharedSpriteFrameCache)
	{
		pSharedSpriteFrameCache = new CCSpriteFrameCache();
        pSharedSpriteFrameCache->init();
	}

	return pSharedSpriteFrameCache;
}

void CCSpriteFrameCache::purgeSharedSpriteFrameCache(void)
{
	CCX_SAFE_RELEASE_NULL(pSharedSpriteFrameCache);
}

bool CCSpriteFrameCache::init(void)
{
	m_pSpriteFrames= new NSDictionary<std::string, CCSpriteFrame*>();
	m_pSpriteFramesAliases = new NSDictionary<std::string, CCSpriteFrame*>();
	return true;
}

CCSpriteFrameCache::~CCSpriteFrameCache(void)
{
	m_pSpriteFrames->release();
	m_pSpriteFramesAliases->release();
}

void CCSpriteFrameCache::addSpriteFramesWithDictionary(NSDictionary<std::string, NSObject*> *dictionary, CCTexture2D *pobTexture)
{
	/*
	Supported Zwoptex Formats:

	ZWTCoordinatesFormatOptionXMLLegacy = 0, // Flash Version
	ZWTCoordinatesFormatOptionXML1_0 = 1, // Desktop Version 0.0 - 0.4b
	ZWTCoordinatesFormatOptionXML1_1 = 2, // Desktop Version 1.0.0 - 1.0.1
	ZWTCoordinatesFormatOptionXML1_2 = 3, // Desktop Version 1.0.2+
	*/

	NSDictionary<std::string, NSObject*> *metadataDict = (NSDictionary<std::string, NSObject*>*)dictionary->objectForKey(std::string("metadata"));
	NSDictionary<std::string, NSObject*> *framesDict = (NSDictionary<std::string, NSObject*>*)dictionary->objectForKey(std::string("frames"));
	int format = 0;

	// get the format
	if(metadataDict != NULL) 
	{
		format = atoi(valueForKey("format", metadataDict));
	}

	// check the format
	assert(format >=0 && format <= 3);

	framesDict->begin();
	std::string key = "";
	NSDictionary<std::string, NSObject*> *frameDict = NULL;
	while( frameDict = (NSDictionary<std::string, NSObject*>*)framesDict->next(&key) )
	{
		CCSpriteFrame *spriteFrame = m_pSpriteFrames->objectForKey(key);
		if (spriteFrame)
		{
			continue;
		}
		
		if(format == 0) 
		{
			float x = (float)atof(valueForKey("x", frameDict));
			float y = (float)atof(valueForKey("y", frameDict));
			float w = (float)atof(valueForKey("width", frameDict));
			float h = (float)atof(valueForKey("height", frameDict));
			float ox = (float)atof(valueForKey("offsetX", frameDict));
			float oy = (float)atof(valueForKey("offsetY", frameDict));
			int ow = atoi(valueForKey("originalWidth", frameDict));
			int oh = atoi(valueForKey("originalHeight", frameDict));
			// check ow/oh
			if(!ow || !oh)
			{
				CCLOG("cocos2d: WARNING: originalWidth/Height not found on the CCSpriteFrame. AnchorPoint won't work as expected. Regenrate the .plist");
			}
			// abs ow/oh
			ow = abs(ow);
			oh = abs(oh);
			// create frame
			spriteFrame = new CCSpriteFrame();
			spriteFrame->initWithTexture(pobTexture, 
				                        CGRectMake(x, y, w, h), 
										false,
                                        CGPointMake(ox, oy),
                                        CGSizeMake((float)ow, (float)oh)
										);
		} 
		else if(format == 1 || format == 2) 
		{
			CGRect frame = CCRectFromString(valueForKey("frame", frameDict));
			bool rotated = false;

			// rotation
			if (format == 2)
			{
				rotated = atoi(valueForKey("rotated", frameDict)) == 0 ? false : true;
			}

			CGPoint offset = CCPointFromString(valueForKey("offset", frameDict));
			CGSize sourceSize = CCSizeFromString(valueForKey("sourceSize", frameDict));

			// create frame
			spriteFrame = new CCSpriteFrame();
			spriteFrame->initWithTexture(pobTexture, 
				frame,
				rotated,
				offset,
				sourceSize
				);
		} else
		if (format == 3)
		{
			/// @todo what's the format look like?
			assert(false);
			return;
			/*
			// get values
			CGSize spriteSize = CCSizeFromString(valueForKey("spriteSize", frameDict));
			CGPoint spriteOffset = CCPointFromString(valueForKey("spriteOffset", frameDict));
			CGSize spriteSourceSize = CCSizeFromString(valueForKey("spriteSourceSize", frameDict));
			CGRect textureRect = CCRectFromString(valueForKey("textureRect", frameDict));
			bool textureRotated = atoi(valueForKey("textureRotated", frameDict)) == 0;

			// get aliases
			NSArray<NSString*> *aliases = NSArray<NSString*>dictionary->objectForKey(std::string("aliases"));

			while( alias = (NSDictionary<std::string, NSObject*>*)aliases->next(&key) )
			{
				std::string value = ((NSString*)alias->objectForKey(key))->m_sString();
				if (m_pSpriteFramesAliases->objectForKey(value))
				{
					CCLOG("cocos2d: WARNING: an alias with name %s already exists", value.c_str());
				}

				m_pSpriteFramesAliases->setObject(frameDict, value);
			}
			*/
		}

		// add sprite frame
		m_pSpriteFrames->setObject(spriteFrame, key);
		spriteFrame->release();
	}
}

void CCSpriteFrameCache::addSpriteFramesWithFile(const char *pszPlist, CCTexture2D *pobTexture)
{
	const char *pszPath = CCFileUtils::fullPathFromRelativePath(pszPlist);
	NSDictionary<std::string, NSObject*> *dict = CCFileUtils::dictionaryWithContentsOfFile(pszPath);

	return addSpriteFramesWithDictionary(dict, pobTexture);
}

void CCSpriteFrameCache::addSpriteFramesWithFile(const char* plist, const char* textureFileName)
{
	assert(textureFileName);
	CCTexture2D *texture = CCTextureCache::sharedTextureCache()->addImage(textureFileName);

	if (texture)
	{
		addSpriteFramesWithFile(plist, texture);
	}
	else
	{
		CCLOG("cocos2d: CCSpriteFrameCache: couldn't load texture file. File not found %s", textureFileName);
	}
}

void CCSpriteFrameCache::addSpriteFramesWithFile(const char *pszPlist)
{
	const char *pszPath = CCFileUtils::fullPathFromRelativePath(pszPlist);
	NSDictionary<std::string, NSObject*> *dict = CCFileUtils::dictionaryWithContentsOfFile(pszPath);
	
	string texturePath("");

	NSDictionary<std::string, NSObject*>* metadataDict = (NSDictionary<std::string, NSObject*>*)dict->objectForKey(string("metadata"));
    if (metadataDict)
	{
		// try to read  texture file name from meta data
		texturePath = string(valueForKey("textureFileName", metadataDict));
	}

	if (! texturePath.empty())
	{
		// build texture path relative to plist file

		// stringByDeletingLastPathComponent
		string textureBase(pszPath);
		int indexOfLastSeperator = textureBase.find_last_of('/');
        if (indexOfLastSeperator == textureBase.length() - 1)
		{
			textureBase.erase(indexOfLastSeperator, 1);
			indexOfLastSeperator = textureBase.find_last_of('/');
		}
		textureBase.erase(indexOfLastSeperator);

		// stringByAppendingPathComponent
        if (! textureBase.empty())
		{
			texturePath = textureBase + "/" + texturePath;
		}
	}
	else
	{
		// build texture path by replacing file extension
        texturePath = pszPath;

		// remove .xxx
		size_t startPos = texturePath.find_last_of("."); 
		texturePath = texturePath.erase(startPos);

		// append .png
		texturePath = texturePath.append(".png");

		CCLOG("cocos2d: CCSpriteFrameCache: Trying to use file %s as texture", texturePath);
	}

	CCTexture2D *pTexture = CCTextureCache::sharedTextureCache()->addImage(texturePath.c_str());

	if (pTexture)
	{
        addSpriteFramesWithDictionary(dict, pTexture);
	}
	else
	{
		CCLOG("cocos2d: CCSpriteFrameCache: Couldn't load texture");
	}
}

void CCSpriteFrameCache::addSpriteFrame(CCSpriteFrame *pobFrame, const char *pszFrameName)
{
	m_pSpriteFrames->setObject(pobFrame, std::string(pszFrameName));
}

void CCSpriteFrameCache::removeSpriteFrames(void)
{
	m_pSpriteFrames->removeAllObjects();
	m_pSpriteFramesAliases->removeAllObjects();
}

void CCSpriteFrameCache::removeUnusedSpriteFrames(void)
{
	m_pSpriteFrames->begin();
	std::string key = "";
	CCSpriteFrame *spriteFrame = NULL;
	while( spriteFrame = m_pSpriteFrames->next(&key) )
	{
		if( spriteFrame->retainCount() == 1 ) 
		{
			CCLOG("cocos2d: CCSpriteFrameCache: removing unused frame: %s", key.c_str());
			m_pSpriteFrames->removeObjectForKey(key);
		}
	}
	m_pSpriteFrames->end();
}


void CCSpriteFrameCache::removeSpriteFrameByName(const char *pszName)
{
	// explicit nil handling
	if( ! pszName )
	{
		return;
	}

	// Is this an alias ?
	NSString *key = (NSString*)m_pSpriteFramesAliases->objectForKey(string(pszName));

	if (key)
	{
        m_pSpriteFrames->removeObjectForKey(key->m_sString);
		m_pSpriteFramesAliases->removeObjectForKey(key->m_sString);
	}
	else
	{
        m_pSpriteFrames->removeObjectForKey(std::string(pszName));
	}
}

void CCSpriteFrameCache::removeSpriteFramesFromFile(const char* plist)
{
	const char* path = CCFileUtils::fullPathFromRelativePath(plist);
	NSDictionary<std::string, NSObject*>* dict = CCFileUtils::dictionaryWithContentsOfFile(path);

	removeSpriteFramesFromDictionary((NSDictionary<std::string, CCSpriteFrame*>*)dict);
}

void CCSpriteFrameCache::removeSpriteFramesFromDictionary(NSDictionary<std::string, CCSpriteFrame*> *dictionary)
{
	NSDictionary<std::string, NSObject*>* framesDict = (NSDictionary<std::string, NSObject*>*)dictionary->objectForKey(string("frames"));
	vector<string> keysToRemove;

	framesDict->begin();
	std::string key = "";
	NSDictionary<std::string, NSObject*> *frameDict = NULL;
	while( frameDict = (NSDictionary<std::string, NSObject*>*)framesDict->next(&key) )
	{
		if (m_pSpriteFrames->objectForKey(key))
		{
			keysToRemove.push_back(key);
		}
	}
	framesDict->end();

	vector<string>::iterator iter;
	for (iter = keysToRemove.begin(); iter != keysToRemove.end(); iter++)
	{
		m_pSpriteFrames->removeObjectForKey(*iter);
	}
}

void CCSpriteFrameCache::removeSpriteFramesFromTexture(CCTexture2D* texture)
{
	vector<string> keysToRemove;

	m_pSpriteFrames->begin();
	std::string key = "";
	NSDictionary<std::string, NSObject*> *frameDict = NULL;
	while( frameDict = (NSDictionary<std::string, NSObject*>*)m_pSpriteFrames->next(&key) )
	{
		CCSpriteFrame *frame = m_pSpriteFrames->objectForKey(key);
		if (frame && (frame->getTexture() == texture))
		{
			keysToRemove.push_back(key);
		}
	}
	m_pSpriteFrames->end();

	vector<string>::iterator iter;
	for (iter = keysToRemove.begin(); iter != keysToRemove.end(); iter++)
	{
		m_pSpriteFrames->removeObjectForKey(*iter);
	}
}

CCSpriteFrame* CCSpriteFrameCache::spriteFrameByName(const char *pszName)
{
	CCSpriteFrame *frame = m_pSpriteFrames->objectForKey(std::string(pszName));
	if (! frame)
	{
		// try alias dictionary
		NSString *key = (NSString*)m_pSpriteFramesAliases->objectForKey(string(pszName));  
		if (key)
		{
			frame = m_pSpriteFrames->objectForKey(key->m_sString);
			if (! frame)
			{
				CCLOG("cocos2d: CCSpriteFrameCahce: Frame '%s' not found", pszName);
			}
		}
	}
	return frame;
}

CCSprite* CCSpriteFrameCache::createSpriteWithFrameName(const char *pszName)
{
	CCSpriteFrame *frame = m_pSpriteFrames->objectForKey(std::string(pszName));
	return CCSprite::spriteWithSpriteFrame(frame);
}
const char * CCSpriteFrameCache::valueForKey(const char *key, NSDictionary<std::string, NSObject*> *dict)
{
	if (dict)
	{
		NSString *pString = (NSString*)dict->objectForKey(std::string(key));
		return pString ? pString->m_sString.c_str() : "";
	}
	return "";
}
}//namespace   cocos2d