mirror of https://github.com/axmolengine/axmol.git
228 lines
7.9 KiB
C++
228 lines
7.9 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 "CCTextureAtlas.h"
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#include "CCTextureCache.h"
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#include "CCDrawingPrimitives.h"
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#include "ccConfig.h"
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#include "CCShaderCache.h"
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#include "CCGLProgram.h"
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#include "ccGLStateCache.h"
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#include "CCDirector.h"
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#include "TransformUtils.h"
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#include "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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LabelAtlas* LabelAtlas::create(const std::string& string, const std::string& charMapFile, long itemWidth, long itemHeight, long startCharMap)
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{
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LabelAtlas *pRet = new LabelAtlas();
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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 LabelAtlas::initWithString(const std::string& string, const std::string& charMapFile, long itemWidth, long itemHeight, long startCharMap)
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{
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Texture2D *texture = TextureCache::getInstance()->addImage(charMapFile);
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return initWithString(string, texture, itemWidth, itemHeight, startCharMap);
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}
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bool LabelAtlas::initWithString(const std::string& string, Texture2D* texture, long itemWidth, long itemHeight, long startCharMap)
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{
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if (AtlasNode::initWithTexture(texture, itemWidth, itemHeight, string.size()))
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{
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_mapStartChar = 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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LabelAtlas* LabelAtlas::create(const std::string& string, const std::string& fntFile)
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{
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LabelAtlas *ret = new LabelAtlas();
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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 LabelAtlas::initWithString(const std::string& theString, const std::string& fntFile)
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{
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std::string pathStr = FileUtils::getInstance()->fullPathForFilename(fntFile);
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std::string relPathStr = pathStr.substr(0, pathStr.find_last_of("/"))+"/";
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Dictionary *dict = Dictionary::createWithContentsOfFile(pathStr.c_str());
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CCASSERT(((String*)dict->objectForKey("version"))->intValue() == 1, "Unsupported version. Upgrade cocos2d version");
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std::string texturePathStr = relPathStr + ((String*)dict->objectForKey("textureFilename"))->getCString();
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String *textureFilename = String::create(texturePathStr);
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unsigned int width = ((String*)dict->objectForKey("itemWidth"))->intValue() / CC_CONTENT_SCALE_FACTOR();
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unsigned int height = ((String*)dict->objectForKey("itemHeight"))->intValue() / CC_CONTENT_SCALE_FACTOR();
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unsigned int startChar = ((String*)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 LabelAtlas::updateAtlasValues()
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{
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size_t n = _string.length();
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const unsigned char *s = (unsigned char*)_string.c_str();
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Texture2D *texture = _textureAtlas->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 = _itemWidth * CC_CONTENT_SCALE_FACTOR();
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float itemHeightInPixels = _itemHeight * CC_CONTENT_SCALE_FACTOR();
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if (_ignoreContentScaleFactor)
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{
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itemWidthInPixels = _itemWidth;
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itemHeightInPixels = _itemHeight;
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}
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CCASSERT( n <= _textureAtlas->getCapacity(), "updateAtlasValues: Invalid String length");
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V3F_C4B_T2F_Quad* quads = _textureAtlas->getQuads();
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for(int i = 0; i < n; i++) {
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unsigned char a = s[i] - _mapStartChar;
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float row = (float) (a % _itemsPerRow);
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float col = (float) (a / _itemsPerRow);
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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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quads[i].tl.texCoords.u = left;
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quads[i].tl.texCoords.v = top;
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quads[i].tr.texCoords.u = right;
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quads[i].tr.texCoords.v = top;
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quads[i].bl.texCoords.u = left;
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quads[i].bl.texCoords.v = bottom;
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quads[i].br.texCoords.u = right;
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quads[i].br.texCoords.v = bottom;
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quads[i].bl.vertices.x = (float) (i * _itemWidth);
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quads[i].bl.vertices.y = 0;
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quads[i].bl.vertices.z = 0.0f;
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quads[i].br.vertices.x = (float)(i * _itemWidth + _itemWidth);
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quads[i].br.vertices.y = 0;
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quads[i].br.vertices.z = 0.0f;
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quads[i].tl.vertices.x = (float)(i * _itemWidth);
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quads[i].tl.vertices.y = (float)(_itemHeight);
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quads[i].tl.vertices.z = 0.0f;
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quads[i].tr.vertices.x = (float)(i * _itemWidth + _itemWidth);
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quads[i].tr.vertices.y = (float)(_itemHeight);
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quads[i].tr.vertices.z = 0.0f;
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Color4B c(_displayedColor.r, _displayedColor.g, _displayedColor.b, _displayedOpacity);
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quads[i].tl.colors = c;
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quads[i].tr.colors = c;
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quads[i].bl.colors = c;
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quads[i].br.colors = c;
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}
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if (n > 0 ){
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_textureAtlas->setDirty(true);
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int totalQuads = _textureAtlas->getTotalQuads();
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if (n > totalQuads) {
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_textureAtlas->increaseTotalQuadsWith(n - totalQuads);
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}
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}
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}
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//CCLabelAtlas - LabelProtocol
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void LabelAtlas::setString(const std::string &label)
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{
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size_t len = label.size();
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if (len > _textureAtlas->getTotalQuads())
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{
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_textureAtlas->resizeCapacity(len);
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}
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_string.clear();
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_string = label;
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this->updateAtlasValues();
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Size s = Size(len * _itemWidth, _itemHeight);
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this->setContentSize(s);
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_quadsToDraw = len;
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}
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const char* LabelAtlas::getString(void) const
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{
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return _string.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 LabelAtlas::draw()
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{
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AtlasNode::draw();
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const Size& s = this->getContentSize();
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Point vertices[4]={
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Point(0,0),Point(s.width,0),
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Point(s.width,s.height),Point(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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