mirror of https://github.com/axmolengine/axmol.git
217 lines
7.4 KiB
C++
217 lines
7.4 KiB
C++
/****************************************************************************
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Copyright (c) 2010-2012 cocos2d-x.org
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Copyright (c) 2008-2010 Ricardo Quesada
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Copyright (c) 2011 Zynga Inc.
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http://www.cocos2d-x.org
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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****************************************************************************/
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#include "CCLabelAtlas.h"
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#include "textures/CCTextureAtlas.h"
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#include "support/CCPointExtension.h"
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#include "CCDrawingPrimitives.h"
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#include "ccConfig.h"
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#include "shaders/CCShaderCache.h"
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#include "shaders/CCGLProgram.h"
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#include "shaders/ccGLStateCache.h"
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#include "CCDirector.h"
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#include "support/TransformUtils.h"
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#include "cocoa/CCInteger.h"
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#include "platform/CCFileUtils.h"
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// external
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#include "kazmath/GL/matrix.h"
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NS_CC_BEGIN
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//CCLabelAtlas - Creation & Init
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CCLabelAtlas* CCLabelAtlas::labelWithString(const char *string, const char *charMapFile, unsigned int itemWidth, int unsigned itemHeight, unsigned int startCharMap)
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{
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return CCLabelAtlas::create(string, charMapFile, itemWidth, itemHeight, startCharMap);
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}
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CCLabelAtlas* CCLabelAtlas::create(const char *string, const char *charMapFile, unsigned int itemWidth, int unsigned itemHeight, unsigned int startCharMap)
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{
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CCLabelAtlas *pRet = new CCLabelAtlas();
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if(pRet && pRet->initWithString(string, charMapFile, itemWidth, itemHeight, startCharMap))
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{
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pRet->autorelease();
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return pRet;
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}
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CC_SAFE_DELETE(pRet);
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return NULL;
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}
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bool CCLabelAtlas::initWithString(const char *string, const char *charMapFile, unsigned int itemWidth, unsigned int itemHeight, unsigned int startCharMap)
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{
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CCAssert(string != NULL, "");
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if (CCAtlasNode::initWithTileFile(charMapFile, itemWidth, itemHeight, strlen(string)))
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{
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m_uMapStartChar = startCharMap;
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this->setString(string);
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return true;
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}
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return false;
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}
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CCLabelAtlas* CCLabelAtlas::labelWithString(const char *string, const char *fntFile)
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{
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return CCLabelAtlas::create(string, fntFile);
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}
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CCLabelAtlas* CCLabelAtlas::create(const char *string, const char *fntFile)
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{
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CCLabelAtlas *ret = new CCLabelAtlas();
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if (ret)
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{
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if (ret->initWithString(string, fntFile))
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{
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ret->autorelease();
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}
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else
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{
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CC_SAFE_RELEASE_NULL(ret);
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}
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}
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return ret;
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}
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bool CCLabelAtlas::initWithString(const char *theString, const char *fntFile)
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{
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CCDictionary *dict = CCDictionary::createWithContentsOfFile(CCFileUtils::sharedFileUtils()->fullPathFromRelativePath(fntFile));
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CCAssert(((CCString*)dict->objectForKey("version"))->intValue() == 1, "Unsupported version. Upgrade cocos2d version");
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CCString *textureFilename = (CCString*)dict->objectForKey("textureFilename");
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unsigned int width = ((CCString*)dict->objectForKey("itemWidth"))->intValue() / CC_CONTENT_SCALE_FACTOR();
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unsigned int height = ((CCString*)dict->objectForKey("itemHeight"))->intValue() / CC_CONTENT_SCALE_FACTOR();
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unsigned int startChar = ((CCString*)dict->objectForKey("firstChar"))->intValue();
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this->initWithString(theString, textureFilename->getCString(), width, height, startChar);
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return true;
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}
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//CCLabelAtlas - Atlas generation
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void CCLabelAtlas::updateAtlasValues()
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{
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unsigned int n = m_sString.length();
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ccV3F_C4B_T2F_Quad quad;
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const unsigned char *s = (unsigned char*)m_sString.c_str();
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CCTexture2D *texture = m_pTextureAtlas->getTexture();
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float textureWide = (float) texture->getPixelsWide();
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float textureHigh = (float) texture->getPixelsHigh();
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float itemWidthInPixels = m_uItemWidth * CC_CONTENT_SCALE_FACTOR();
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float itemHeightInPixels = m_uItemHeight * CC_CONTENT_SCALE_FACTOR();
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for(unsigned int i = 0; i < n; i++) {
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unsigned char a = s[i] - m_uMapStartChar;
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float row = (float) (a % m_uItemsPerRow);
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float col = (float) (a / m_uItemsPerRow);
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#if CC_FIX_ARTIFACTS_BY_STRECHING_TEXEL
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// Issue #938. Don't use texStepX & texStepY
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float left = (2 * row * itemWidthInPixels + 1) / (2 * textureWide);
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float right = left + (itemWidthInPixels * 2 - 2) / (2 * textureWide);
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float top = (2 * col * itemHeightInPixels + 1) / (2 * textureHigh);
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float bottom = top + (itemHeightInPixels * 2 - 2) / (2 * textureHigh);
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#else
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float left = row * itemWidthInPixels / textureWide;
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float right = left + itemWidthInPixels / textureWide;
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float top = col * itemHeightInPixels / textureHigh;
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float bottom = top + itemHeightInPixels / textureHigh;
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#endif // ! CC_FIX_ARTIFACTS_BY_STRECHING_TEXEL
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quad.tl.texCoords.u = left;
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quad.tl.texCoords.v = top;
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quad.tr.texCoords.u = right;
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quad.tr.texCoords.v = top;
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quad.bl.texCoords.u = left;
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quad.bl.texCoords.v = bottom;
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quad.br.texCoords.u = right;
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quad.br.texCoords.v = bottom;
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quad.bl.vertices.x = (float) (i * m_uItemWidth);
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quad.bl.vertices.y = 0;
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quad.bl.vertices.z = 0.0f;
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quad.br.vertices.x = (float)(i * m_uItemWidth + m_uItemWidth);
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quad.br.vertices.y = 0;
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quad.br.vertices.z = 0.0f;
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quad.tl.vertices.x = (float)(i * m_uItemWidth);
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quad.tl.vertices.y = (float)(m_uItemHeight);
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quad.tl.vertices.z = 0.0f;
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quad.tr.vertices.x = (float)(i * m_uItemWidth + m_uItemWidth);
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quad.tr.vertices.y = (float)(m_uItemHeight);
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quad.tr.vertices.z = 0.0f;
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ccColor4B c = { m_tColor.r, m_tColor.g, m_tColor.b, m_cOpacity };
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quad.tl.colors = c;
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quad.tr.colors = c;
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quad.bl.colors = c;
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quad.br.colors = c;
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m_pTextureAtlas->updateQuad(&quad, i);
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}
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}
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//CCLabelAtlas - CCLabelProtocol
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void CCLabelAtlas::setString(const char *label)
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{
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unsigned int len = strlen(label);
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if (len > m_pTextureAtlas->getTotalQuads())
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{
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m_pTextureAtlas->resizeCapacity(len);
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}
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m_sString.clear();
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m_sString = label;
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this->updateAtlasValues();
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CCSize s = CCSizeMake(len * m_uItemWidth, m_uItemHeight);
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this->setContentSize(s);
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m_uQuadsToDraw = len;
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}
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const char* CCLabelAtlas::getString(void)
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{
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return m_sString.c_str();
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}
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//CCLabelAtlas - draw
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#if CC_LABELATLAS_DEBUG_DRAW
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void CCLabelAtlas::draw()
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{
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CCAtlasNode::draw();
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const CCSize& s = this->getContentSize();
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CCPoint vertices[4]={
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ccp(0,0),ccp(s.width,0),
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ccp(s.width,s.height),ccp(0,s.height),
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};
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ccDrawPoly(vertices, 4, true);
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}
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#endif
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NS_CC_END
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