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C++ Hydrogen::setBPM方法代码示例

本文整理汇总了C++中Hydrogen::setBPM方法的典型用法代码示例。如果您正苦于以下问题:C++ Hydrogen::setBPM方法的具体用法?C++ Hydrogen::setBPM怎么用?C++ Hydrogen::setBPM使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Hydrogen的用法示例。


在下文中一共展示了Hydrogen::setBPM方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: handleAction


//.........这里部分代码省略.........
		Hydrogen::get_instance()->setSelectedInstrumentNumber(nLine);

		return true;
	}

	if( sActionString == "BPM_CC_RELATIVE" ){
		/*
		 * increments/decrements the BPM
		 * this is useful if the bpm is set by a rotary control knob
		*/

		AudioEngine::get_instance()->lock( RIGHT_HERE );

		int mult = 1;

		//second parameter of cc command
		//this value should be 1 to decrement and something other then 1 to increment the bpm
		int cc_param = 1;

		//this Action should be triggered only by CC commands

		bool ok;
		mult = pAction->getParameter1().toInt(&ok,10);
		cc_param = pAction->getParameter2().toInt(&ok,10);

		if( lastBpmChangeCCParameter == -1)
		{
			lastBpmChangeCCParameter = cc_param;
		}

		Song* pSong = pEngine->getSong();

		if ( lastBpmChangeCCParameter >= cc_param && pSong->__bpm  < 300) {
			pEngine->setBPM( pSong->__bpm - 1*mult );
		}

		if ( lastBpmChangeCCParameter < cc_param && pSong->__bpm  > 40 ) {
			pEngine->setBPM( pSong->__bpm + 1*mult );
		}

		lastBpmChangeCCParameter = cc_param;

		AudioEngine::get_instance()->unlock();

		return true;
	}

	if( sActionString == "BPM_FINE_CC_RELATIVE" ){
		/*
		 * increments/decrements the BPM
		 * this is useful if the bpm is set by a rotary control knob
		 */

		AudioEngine::get_instance()->lock( RIGHT_HERE );

		int mult = 1;

		//second parameter of cc command
		//this value should be 1 to decrement and something other then 1 to increment the bpm
		int cc_param = 1;

		//this Action should be triggered only by CC commands

		bool ok;
		mult = pAction->getParameter1().toInt(&ok,10);
		cc_param = pAction->getParameter2().toInt(&ok,10);
开发者ID:harryhaaren,项目名称:hydrogen,代码行数:67,代码来源:midi_action.cpp


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