C++ XmlElement::hasTagName方法代码示例

bool JucerDocument::loadFromXml (const XmlElement& xml)
{
    if (xml.hasTagName (jucerCompXmlTag)
         && getTypeName().equalsIgnoreCase (xml.getStringAttribute ("documentType")))
    {
        className = xml.getStringAttribute ("className", defaultClassName);
        templateFile = xml.getStringAttribute ("template", String());
        componentName = xml.getStringAttribute ("componentName", String());
        parentClasses = xml.getStringAttribute ("parentClasses", defaultParentClasses);
        constructorParams = xml.getStringAttribute ("constructorParams", String());
        variableInitialisers = xml.getStringAttribute ("variableInitialisers", String());

        fixedSize = xml.getBoolAttribute ("fixedSize", false);
        initialWidth = xml.getIntAttribute ("initialWidth", 300);
        initialHeight = xml.getIntAttribute ("initialHeight", 200);

        snapGridPixels = xml.getIntAttribute ("snapPixels", snapGridPixels);
        snapActive = xml.getBoolAttribute ("snapActive", snapActive);
        snapShown = xml.getBoolAttribute ("snapShown", snapShown);

        componentOverlayOpacity = (float) xml.getDoubleAttribute ("overlayOpacity", 0.0);

        activeExtraMethods.clear();

        if (XmlElement* const methods = xml.getChildByName ("METHODS"))
            forEachXmlChildElementWithTagName (*methods, e, "METHOD")
                activeExtraMethods.addIfNotAlreadyThere (e->getStringAttribute ("name"));

        activeExtraMethods.trim();
        activeExtraMethods.removeEmptyStrings();

        changed();
        getUndoManager().clearUndoHistory();
        return true;
    }

    return false;
}

bool PluginDescription::loadFromXml (const XmlElement& xml)
{
    if (xml.hasTagName ("PLUGIN"))
    {
        name                = xml.getStringAttribute ("name");
        descriptiveName     = xml.getStringAttribute ("descriptiveName", name);
        pluginFormatName    = xml.getStringAttribute ("format");
        category            = xml.getStringAttribute ("category");
        manufacturerName    = xml.getStringAttribute ("manufacturer");
        version             = xml.getStringAttribute ("version");
        fileOrIdentifier    = xml.getStringAttribute ("file");
        uid                 = xml.getStringAttribute ("uid").getHexValue32();
        isInstrument        = xml.getBoolAttribute ("isInstrument", false);
        lastFileModTime     = Time (xml.getStringAttribute ("fileTime").getHexValue64());
        numInputChannels    = xml.getIntAttribute ("numInputs");
        numOutputChannels   = xml.getIntAttribute ("numOutputs");
        hasSharedContainer  = xml.getBoolAttribute ("isShell", false);

        return true;
    }

    return false;
}

void MLPluginProcessor::setStateFromXML(const XmlElement& xmlState, bool setViewAttributes)
{
	if (!(xmlState.hasTagName (JucePlugin_Name))) return;
	if (!(mEngine.getCompileStatus() == MLProc::OK)) return; // TODO revisit need to compile first

	// getCallbackLock() is in juce_AudioProcessor
	// process lock is a quick fix.  it is here to prevent doParams() from getting called in 
	// process() methods and thereby setting mParamsChanged to false before the real changes take place.
	// A better alternative would be a lock-free queue of parameter changes.
	const ScopedLock sl (getCallbackLock()); 
		
	// only the differences between default parameters and the program state are saved in a program,
	// so the first step is to set the default parameters.
	setDefaultParameters();
	
	// get program version of saved state
	unsigned blobVersion = xmlState.getIntAttribute ("pluginVersion");
	unsigned pluginVersion = JucePlugin_VersionCode;
	
	if (blobVersion > pluginVersion)
	{
		// TODO show error to user
		MLError() << "MLPluginProcessor::setStateFromXML: saved program version is newer than plugin version!\n";
		return;
	}
    
	// try to load scale if a scale attribute exists
    // TODO auto save all state including this
 	const String scaleDir = xmlState.getStringAttribute ("scaleDir"); // look for old-style dir attribute   
	const String scaleName = xmlState.getStringAttribute ("scaleName");
    String fullName;
    if(scaleName != String::empty)
    {
        fullName = scaleName;
        if(scaleDir != String::empty)
        {
            fullName = scaleDir + String("/") + fullName + ".scl";
        }
    }
    else
    {
        fullName = "12-equal";
    }
    std::string fullScaleName(fullName.toUTF8());
	setProperty("key_scale", fullScaleName);
    bool loaded = false;
    // look for scale under full name with path
    if(fullScaleName != std::string())
    {
        const MLFilePtr f = mScaleFiles->getFileByName(fullScaleName);
        if(f != MLFilePtr())
        {
            loadScale(f->mFile);
            loaded = true;
        }
    }
    if(!loaded)
    {
        loadDefaultScale();
    }
    
	// get preset name saved in blob.  when saving from AU host, name will also be set from RestoreState().
	const String presetName = xmlState.getStringAttribute ("presetName");
	setProperty("preset", std::string(presetName.toUTF8()));
    
	/*
     debug() << "MLPluginProcessor: setStateFromXML: loading program " << presetName << ", version " << std::hex << blobVersion << std::dec << "\n";
     MemoryOutputStream myStream;
     xmlState->writeToStream (myStream, "");
     debug() << myStream.toString();
     */
	
    /*
     setCurrentPresetName(presetName.toUTF8());
     setCurrentPresetDir(presetDir.toUTF8());
     */
    
	// get plugin-specific translation table for updating older versions of data
	std::map<MLSymbol, MLSymbol> translationTable;

	// TODO move this into Aalto! 
	// make translation tables based on program version. 
	//
	if (blobVersion <= 0x00010120)
	{
		// translate seq parameters
		for(unsigned n=0; n<16; ++n)
		{
			std::stringstream pName;
			std::stringstream pName2;
			pName << "seq_value" << n;
			pName2 << "seq_pulse" << n;
			MLSymbol oldSym(pName.str());
			MLSymbol newSym = MLSymbol("seq_value#").withFinalNumber(n);
			MLSymbol oldSym2(pName2.str());
			MLSymbol newSym2 = MLSymbol("seq_pulse#").withFinalNumber(n);
			translationTable[oldSym] = newSym;
			translationTable[oldSym2] = newSym2;	
		}
	}
//.........这里部分代码省略.........