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axmol/cocos2dx/label_nodes/CCLabelBMFont.cpp

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/****************************************************************************
Copyright (c) 2010-2011 cocos2d-x.org
Copyright (c) 2008-2010 Ricardo Quesada
Copyright (c) 2011 Zynga Inc.
http://www.cocos2d-x.org
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.
Use any of these editors to generate BMFonts:
http://glyphdesigner.71squared.com/ (Commercial, Mac OS X)
http://www.n4te.com/hiero/hiero.jnlp (Free, Java)
http://slick.cokeandcode.com/demos/hiero.jnlp (Free, Java)
http://www.angelcode.com/products/bmfont/ (Free, Windows only)
****************************************************************************/
#include "CCLabelBMFont.h"
#include "platform/platform.h"
#include "CCMutableDictionary.h"
#include "CCConfiguration.h"
#include "CCDrawingPrimitives.h"
#include "CCSprite.h"
#include "CCPointExtension.h"
#include "CCFileUtils.h"
#include "support/data_support/uthash.h"
namespace cocos2d{
//
//FNTConfig Cache - free functions
//
CCMutableDictionary<std::string, CCBMFontConfiguration*> *configurations = NULL;
CCBMFontConfiguration* FNTConfigLoadFile( const char *fntFile)
{
CCBMFontConfiguration *pRet = NULL;
if( configurations == NULL )
{
configurations = new CCMutableDictionary<std::string, CCBMFontConfiguration*>();
}
std::string key(fntFile);
pRet = configurations->objectForKey(key);
if( pRet == NULL )
{
pRet = CCBMFontConfiguration::configurationWithFNTFile(fntFile);
configurations->setObject(pRet, key);
}
return pRet;
}
void FNTConfigRemoveCache( void )
{
if (configurations)
{
configurations->removeAllObjects();
CC_SAFE_RELEASE_NULL(configurations);
}
}
//
//Hash Element
//
// Equal function for targetSet.
typedef struct _KerningHashElement
{
int key; // key for the hash. 16-bit for 1st element, 16-bit for 2nd element
int amount;
UT_hash_handle hh;
} tKerningHashElement;
//
//BitmapFontConfiguration
//
CCBMFontConfiguration * CCBMFontConfiguration::configurationWithFNTFile(const char *FNTfile)
{
CCBMFontConfiguration * pRet = new CCBMFontConfiguration();
if (pRet->initWithFNTfile(FNTfile))
{
pRet->autorelease();
return pRet;
}
CC_SAFE_DELETE(pRet);
return NULL;
}
bool CCBMFontConfiguration::initWithFNTfile(const char *FNTfile)
{
assert(FNTfile != NULL && strlen(FNTfile)!=0);
m_pKerningDictionary = NULL;
this->parseConfigFile(FNTfile);
return true;
}
CCBMFontConfiguration::~CCBMFontConfiguration()
{
CCLOGINFO( "cocos2d: deallocing CCBMFontConfiguration" );
this->purgeKerningDictionary();
m_sAtlasName.clear();
}
char * CCBMFontConfiguration::description(void)
{
char *ret = new char[100];
sprintf(ret, "<CCBMFontConfiguration | Kernings:%d | Image = %s>", HASH_COUNT(m_pKerningDictionary), m_sAtlasName.c_str());
return ret;
}
void CCBMFontConfiguration::purgeKerningDictionary()
{
tKerningHashElement *current;
while(m_pKerningDictionary)
{
current = m_pKerningDictionary;
HASH_DEL(m_pKerningDictionary,current);
free(current);
}
}
void CCBMFontConfiguration::parseConfigFile(const char *controlFile)
{
std::string fullpath = CCFileUtils::fullPathFromRelativePath(controlFile);
CCFileData data(fullpath.c_str(), "rb");
unsigned long nBufSize = data.getSize();
char* pBuffer = (char*) data.getBuffer();
CCAssert(pBuffer, "CCBMFontConfiguration::parseConfigFile | Open file error.");
if (!pBuffer)
{
return;
}
// parse spacing / padding
std::string line;
std::string strLeft(pBuffer, nBufSize);
while (strLeft.length() > 0)
{
int pos = strLeft.find('\n');
if (pos != (int)std::string::npos)
{
// the data is more than a line.get one line
line = strLeft.substr(0, pos);
strLeft = strLeft.substr(pos + 1);
}
else
{
// get the left data
line = strLeft;
strLeft.erase();
}
if(line.substr(0,strlen("info face")) == "info face")
{
// XXX: info parsing is incomplete
// Not needed for the Hiero editors, but needed for the AngelCode editor
// [self parseInfoArguments:line];
this->parseInfoArguments(line);
}
// Check to see if the start of the line is something we are interested in
else if(line.substr(0,strlen("common lineHeight")) == "common lineHeight")
{
this->parseCommonArguments(line);
}
else if(line.substr(0,strlen("page id")) == "page id")
{
this->parseImageFileName(line, controlFile);
}
else if(line.substr(0,strlen("chars c")) == "chars c")
{
// Ignore this line
}
else if(line.substr(0,strlen("char")) == "char")
{
// Parse the current line and create a new CharDef
ccBMFontDef characterDefinition;
this->parseCharacterDefinition(line, &characterDefinition);
// Add the CharDef returned to the charArray
m_pBitmapFontArray[ characterDefinition.charID ] = characterDefinition;
}
else if(line.substr(0,strlen("kernings count")) == "kernings count")
{
this->parseKerningCapacity(line);
}
else if(line.substr(0,strlen("kerning first")) == "kerning first")
{
this->parseKerningEntry(line);
}
}
}
void CCBMFontConfiguration::parseImageFileName(std::string line, const char *fntFile)
{
//////////////////////////////////////////////////////////////////////////
// line to parse:
// page id=0 file="bitmapFontTest.png"
//////////////////////////////////////////////////////////////////////////
// page ID. Sanity check
int index = line.find('=')+1;
int index2 = line.find(' ', index);
std::string value = line.substr(index, index2-index);
CCAssert(atoi(value.c_str()) == 0, "LabelBMFont file could not be found");
// file
index = line.find('"')+1;
index2 = line.find('"', index);
value = line.substr(index, index2-index);
m_sAtlasName = CCFileUtils::fullPathFromRelativeFile(value.c_str(), fntFile);
}
void CCBMFontConfiguration::parseInfoArguments(std::string line)
{
//////////////////////////////////////////////////////////////////////////
// possible lines to parse:
// info face="Script" size=32 bold=0 italic=0 charset="" unicode=1 stretchH=100 smooth=1 aa=1 padding=1,4,3,2 spacing=0,0 outline=0
// info face="Cracked" size=36 bold=0 italic=0 charset="" unicode=0 stretchH=100 smooth=1 aa=1 padding=0,0,0,0 spacing=1,1
//////////////////////////////////////////////////////////////////////////
// padding
int index = line.find("padding=");
int index2 = line.find(' ', index);
std::string value = line.substr(index, index2-index);
sscanf(value.c_str(), "padding=%d,%d,%d,%d", &m_tPadding.top, &m_tPadding.right, &m_tPadding.bottom, &m_tPadding.left);
CCLOG("cocos2d: padding: %d,%d,%d,%d", m_tPadding.left, m_tPadding.top, m_tPadding.right, m_tPadding.bottom);
}
void CCBMFontConfiguration::parseCommonArguments(std::string line)
{
//////////////////////////////////////////////////////////////////////////
// line to parse:
// common lineHeight=104 base=26 scaleW=1024 scaleH=512 pages=1 packed=0
//////////////////////////////////////////////////////////////////////////
// Height
int index = line.find("lineHeight=");
int index2 = line.find(' ', index);
std::string value = line.substr(index, index2-index);
sscanf(value.c_str(), "lineHeight=%u", &m_uCommonHeight);
// scaleW. sanity check
index = line.find("scaleW=") + strlen("scaleW=");
index2 = line.find(' ', index);
value = line.substr(index, index2-index);
CCAssert(atoi(value.c_str()) <= CCConfiguration::sharedConfiguration()->getMaxTextureSize(), "CCLabelBMFont: page can't be larger than supported");
// scaleH. sanity check
index = line.find("scaleH=") + strlen("scaleH=");
index2 = line.find(' ', index);
value = line.substr(index, index2-index);
CCAssert(atoi(value.c_str()) <= CCConfiguration::sharedConfiguration()->getMaxTextureSize(), "CCLabelBMFont: page can't be larger than supported");
// pages. sanity check
index = line.find("pages=") + strlen("pages=");
index2 = line.find(' ', index);
value = line.substr(index, index2-index);
CCAssert(atoi(value.c_str()) == 1, "CCBitfontAtlas: only supports 1 page");
// packed (ignore) What does this mean ??
}
void CCBMFontConfiguration::parseCharacterDefinition(std::string line, ccBMFontDef *characterDefinition)
{
//////////////////////////////////////////////////////////////////////////
// line to parse:
// char id=32 x=0 y=0 width=0 height=0 xoffset=0 yoffset=44 xadvance=14 page=0 chnl=0
//////////////////////////////////////////////////////////////////////////
// Character ID
int index = line.find("id=");
int index2 = line.find(' ', index);
std::string value = line.substr(index, index2-index);
sscanf(value.c_str(), "id=%u", &characterDefinition->charID);
CCAssert(characterDefinition->charID < kCCBMFontMaxChars, "BitmpaFontAtlas: CharID bigger than supported");
// Character x
index = line.find("x=");
index2 = line.find(' ', index);
value = line.substr(index, index2-index);
sscanf(value.c_str(), "x=%f", &characterDefinition->rect.origin.x);
// Character y
index = line.find("y=");
index2 = line.find(' ', index);
value = line.substr(index, index2-index);
sscanf(value.c_str(), "y=%f", &characterDefinition->rect.origin.y);
// Character width
index = line.find("width=");
index2 = line.find(' ', index);
value = line.substr(index, index2-index);
sscanf(value.c_str(), "width=%f", &characterDefinition->rect.size.width);
// Character height
index = line.find("height=");
index2 = line.find(' ', index);
value = line.substr(index, index2-index);
sscanf(value.c_str(), "height=%f", &characterDefinition->rect.size.height);
// Character xoffset
index = line.find("xoffset=");
index2 = line.find(' ', index);
value = line.substr(index, index2-index);
sscanf(value.c_str(), "xoffset=%d", &characterDefinition->xOffset);
// Character yoffset
index = line.find("yoffset=");
index2 = line.find(' ', index);
value = line.substr(index, index2-index);
sscanf(value.c_str(), "yoffset=%d", &characterDefinition->yOffset);
// Character xadvance
index = line.find("xadvance=");
index2 = line.find(' ', index);
value = line.substr(index, index2-index);
sscanf(value.c_str(), "xadvance=%d", &characterDefinition->xAdvance);
}
void CCBMFontConfiguration::parseKerningCapacity(std::string line)
{
// When using uthash there is not need to parse the capacity.
// CCAssert(!kerningDictionary, @"dictionary already initialized");
//
// // Break the values for this line up using =
// CCMutableArray *values = [line componentsSeparatedByString:@"="];
// NSEnumerator *nse = [values objectEnumerator];
// CCString *propertyValue;
//
// // We need to move past the first entry in the array before we start assigning values
// [nse nextObject];
//
// // count
// propertyValue = [nse nextObject];
// int capacity = [propertyValue intValue];
//
// if( capacity != -1 )
// kerningDictionary = ccHashSetNew(capacity, targetSetEql);
}
void CCBMFontConfiguration::parseKerningEntry(std::string line)
{
//////////////////////////////////////////////////////////////////////////
// line to parse:
// kerning first=121 second=44 amount=-7
//////////////////////////////////////////////////////////////////////////
// first
int first;
int index = line.find("first=");
int index2 = line.find(' ', index);
std::string value = line.substr(index, index2-index);
sscanf(value.c_str(), "first=%d", &first);
// second
int second;
index = line.find("second=");
index2 = line.find(' ', index);
value = line.substr(index, index2-index);
sscanf(value.c_str(), "second=%d", &second);
// amount
int amount;
index = line.find("amount=");
index2 = line.find(' ', index);
value = line.substr(index, index2-index);
sscanf(value.c_str(), "amount=%d", &amount);
tKerningHashElement *element = (tKerningHashElement *)calloc( sizeof( *element ), 1 );
element->amount = amount;
element->key = (first<<16) | (second&0xffff);
HASH_ADD_INT(m_pKerningDictionary,key, element);
}
//
//CCLabelBMFont
//
//LabelBMFont - Purge Cache
void CCLabelBMFont::purgeCachedData()
{
FNTConfigRemoveCache();
}
//LabelBMFont - Creation & Init
CCLabelBMFont *CCLabelBMFont::labelWithString(const char *str, const char *fntFile)
{
CCLabelBMFont *pRet = new CCLabelBMFont();
if(pRet && pRet->initWithString(str, fntFile))
{
pRet->autorelease();
return pRet;
}
CC_SAFE_DELETE(pRet)
return NULL;
}
bool CCLabelBMFont::initWithString(const char *theString, const char *fntFile)
{
assert(theString != NULL);
CC_SAFE_RELEASE(m_pConfiguration);// allow re-init
m_pConfiguration = FNTConfigLoadFile(fntFile);
m_pConfiguration->retain();
CCAssert( m_pConfiguration, "Error creating config for LabelBMFont");
if (CCSpriteBatchNode::initWithFile(m_pConfiguration->m_sAtlasName.c_str(), strlen(theString)))
{
m_cOpacity = 255;
m_tColor = ccWHITE;
m_tContentSize = CCSizeZero;
m_bIsOpacityModifyRGB = m_pobTextureAtlas->getTexture()->getHasPremultipliedAlpha();
setAnchorPoint(ccp(0.5f, 0.5f));
this->setString(theString);
return true;
}
return false;
}
CCLabelBMFont::~CCLabelBMFont()
{
m_sString.clear();
CC_SAFE_RELEASE(m_pConfiguration);
}
// LabelBMFont - Atlas generation
int CCLabelBMFont::kerningAmountForFirst(unsigned short first, unsigned short second)
{
int ret = 0;
unsigned int key = (first<<16) | (second & 0xffff);
if( m_pConfiguration->m_pKerningDictionary ) {
tKerningHashElement *element = NULL;
HASH_FIND_INT(m_pConfiguration->m_pKerningDictionary, &key, element);
if(element)
ret = element->amount;
}
return ret;
}
void CCLabelBMFont::createFontChars()
{
int nextFontPositionX = 0;
int nextFontPositionY = 0;
unsigned short prev = -1;
int kerningAmount = 0;
CCSize tmpSize = CCSizeZero;
int longestLine = 0;
int totalHeight = 0;
int quantityOfLines = 1;
int len = m_sString.length();
if (0 == len)
{
return;
}
for (int i = 0; i < len - 1; ++i)
{
unsigned short c = m_sString[i];
if (c == '\n')
{
quantityOfLines++;
}
}
totalHeight = m_pConfiguration->m_uCommonHeight * quantityOfLines;
nextFontPositionY = m_pConfiguration->m_uCommonHeight * (quantityOfLines - 1);
for(int i=0; i<len; i++)
{
unsigned short c = m_sString[i];
CCAssert( c < kCCBMFontMaxChars, "LabelBMFont: character outside bounds");
if (c == '\n')
{
nextFontPositionX = 0;
nextFontPositionY -= m_pConfiguration->m_uCommonHeight;
continue;
}
kerningAmount = this->kerningAmountForFirst(prev, c);
const ccBMFontDef& fontDef = m_pConfiguration->m_pBitmapFontArray[c];
CCRect rect = fontDef.rect;
CCSprite *fontChar;
fontChar = (CCSprite*)(this->getChildByTag(i));
if( ! fontChar )
{
fontChar = new CCSprite();
fontChar->initWithBatchNode(this, rect);
this->addChild(fontChar, 0, i);
fontChar->release();
}
else
{
// reusing fonts
fontChar->setTextureRectInPixels(rect, false, rect.size);
// restore to default in case they were modified
fontChar->setIsVisible(true);
fontChar->setOpacity(255);
}
float yOffset = (float) (m_pConfiguration->m_uCommonHeight - fontDef.yOffset);
fontChar->setPositionInPixels( ccp( nextFontPositionX + fontDef.xOffset + fontDef.rect.size.width / 2.0f + kerningAmount,
(float) nextFontPositionY + yOffset - rect.size.height/2.0f ) );
// NSLog(@"position.y: %f", fontChar.position.y);
// update kerning
nextFontPositionX += m_pConfiguration->m_pBitmapFontArray[c].xAdvance + kerningAmount;
prev = c;
// Apply label properties
fontChar->setIsOpacityModifyRGB(m_bIsOpacityModifyRGB);
// Color MUST be set before opacity, since opacity might change color if OpacityModifyRGB is on
fontChar->setColor(m_tColor);
// only apply opaccity if it is different than 255 )
// to prevent modifying the color too (issue #610)
if( m_cOpacity != 255 )
{
fontChar->setOpacity(m_cOpacity);
}
if (longestLine < nextFontPositionX)
{
longestLine = nextFontPositionX;
}
}
tmpSize.width = (float) longestLine;
tmpSize.height = (float) totalHeight;
this->setContentSizeInPixels(tmpSize);
}
//LabelBMFont - CCLabelProtocol protocol
void CCLabelBMFont::setString(const char *newString)
{
m_sString.clear();
m_sString = newString;
if (m_pChildren && m_pChildren->count() != 0)
{
CCObject* child;
CCARRAY_FOREACH(m_pChildren, child)
{
CCNode* pNode = (CCNode*) child;
if (pNode)
{
pNode->setIsVisible(false);
}
}
}
this->createFontChars();
}
const char* CCLabelBMFont::getString(void)
{
return m_sString.c_str();
}
void CCLabelBMFont::setCString(const char *label)
{
setString(label);
}
//LabelBMFont - CCRGBAProtocol protocol
void CCLabelBMFont::setColor(ccColor3B var)
{
m_tColor = var;
if (m_pChildren && m_pChildren->count() != 0)
{
CCObject* child;
CCARRAY_FOREACH(m_pChildren, child)
{
CCSprite* pNode = (CCSprite*) child;
if (pNode)
{
pNode->setColor(m_tColor);
}
}
}
}
ccColor3B CCLabelBMFont::getColor()
{
return m_tColor;
}
void CCLabelBMFont::setOpacity(GLubyte var)
{
m_cOpacity = var;
if (m_pChildren && m_pChildren->count() != 0)
{
CCObject* child;
CCARRAY_FOREACH(m_pChildren, child)
{
CCNode* pNode = (CCNode*) child;
if (pNode)
{
CCRGBAProtocol *pRGBAProtocol = pNode->convertToRGBAProtocol();
if (pRGBAProtocol)
{
pRGBAProtocol->setOpacity(m_cOpacity);
}
}
}
}
}
GLubyte CCLabelBMFont::getOpacity()
{
return m_cOpacity;
}
void CCLabelBMFont::setIsOpacityModifyRGB(bool var)
{
m_bIsOpacityModifyRGB = var;
if (m_pChildren && m_pChildren->count() != 0)
{
CCObject* child;
CCARRAY_FOREACH(m_pChildren, child)
{
CCNode* pNode = (CCNode*) child;
if (pNode)
{
CCRGBAProtocol *pRGBAProtocol = pNode->convertToRGBAProtocol();
if (pRGBAProtocol)
{
pRGBAProtocol->setIsOpacityModifyRGB(m_bIsOpacityModifyRGB);
}
}
}
}
}
bool CCLabelBMFont::getIsOpacityModifyRGB()
{
return m_bIsOpacityModifyRGB;
}
// LabelBMFont - AnchorPoint
void CCLabelBMFont::setAnchorPoint(CCPoint point)
{
if( ! CCPoint::CCPointEqualToPoint(point, m_tAnchorPoint) )
{
CCSpriteBatchNode::setAnchorPoint(point);
this->createFontChars();
}
}
//LabelBMFont - Debug draw
#if CC_LABELBMFONT_DEBUG_DRAW
void CCLabelBMFont::draw()
{
CCSpriteBatchNode::draw();
CCSize s = this->getContentSize();
CCPoint vertices[4]={
ccp(0,0),ccp(s.width,0),
ccp(s.width,s.height),ccp(0,s.height),
};
ccDrawPoly(vertices, 4, true);
}
#endif // CC_LABELBMFONT_DEBUG_DRAW
}
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