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expr/globalvar.C
/*
* Copyright (c) 2017
* Side Effects Software Inc. All rights reserved.
*
* Redistribution and use of Houdini Development Kit samples in source and
* binary forms, with or without modification, are permitted provided that the
* following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. The name of Side Effects Software may not be used to endorse or
* promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY SIDE EFFECTS SOFTWARE `AS IS' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL SIDE EFFECTS SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*----------------------------------------------------------------------------
*/
static bool
getMSValueFloat(fpreal &f, int varid, int thread)
{
f = CHgetManager()->getEvaluateTime(thread) * 1000.0;
return true;
}
static bool
getProjValueStr(UT_String &str, int varid, int thread)
{
str.harden("My Project Name");
return true;
}
void
{
// Pass zero for the index value int the CH_LocalVariable initializers,
// since it will just be replaced anyway. The actual variable id is
// returned, in case you want several variables to be evaluated through the
// same function. In this case we don't care, so just throw the values
// away.
mgr->addVariable({"PROJ", 0, CH_VARIABLE_STRVAL},
getProjValueStr, NULL, NULL);
mgr->addVariable({"MS", 0, CH_VARIABLE_TIME},
NULL, getMSValueFloat, NULL);
}