SOP/MSS_BrushHairLenSelector.C

/*
 * Copyright (c) 2025
 *      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
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 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 *----------------------------------------------------------------------------
 * Custom selector for the BrushHairLen SOP.
 */

#include <UT/UT_DSOVersion.h>
#include <SOP/SOP_BrushBase.h>
#include <BM/BM_ResourceManager.h>
#include "MSS_BrushHairLenSelector.h"

using namespace HDK_Sample;

void
newSelector(BM_ResourceManager * /*m*/)
{
    PI_SelectorTemplate         *sel;
    OP_Operator                 *op;
    
    // We create a PI_SelectorTemplate here to represent our new selector
    // As we want to use this with our SOP, and as the selector .dso
    // loads after the sop .dso, we also bind the selector here.

    // Create & register the selector.
    sel = new PI_SelectorTemplate("brushhairlenselect", // Internal name
                                  "Brush Hair Selector", // English name
                                  "Sop");               // Where it works.
    sel->constructor((void *) &MSS_BrushHairLenSelector::ourConstructor);
    sel->data(OP3DthePrimSelTypes);
    PIgetResourceManager()->registerSelector(sel);

    // Bind the selector.
    op = OP_Network::getOperatorTable(SOP_TABLE_NAME)->getOperator("proto_brushhairlen");
    if (!op)
    {
        UT_ASSERT(!"Could not find required op!");
        return;
    }

    PIgetResourceManager()->bindSelector(
            op,                         // OP_Operator to bind to.
            "brushhairlenselect",       // Internal name of selector.
            "Brush Hair Selector",      // English name of selector.
            "Select the area to grow hair from.",       // Prompt.
            "group",                    // Parameter to write group to.
            0,                          // Input number to wire up.
            1,                          // 1 means this input is required.
            "0x000000ff",               // Prim/point mask selection.
            0,                          // Can the user drag the object?
            0,                          // Optional menu.
            0,                          // Must * be used to select all?
            0,                          // Extra info string passed to selector
            false);                     // true if this from a ScriptOp.
}

MSS_BrushHairLenSelector::MSS_BrushHairLenSelector(OP3D_View &viewer, 
                                     PI_SelectorTemplate &templ)
    : MSS_ReusableSelector(viewer, templ, "proto_brushhairlen", "group", 
                            0,          // No group type field.
                            true)       // We want to allow blank group names.
{
    // Nothing needed.
}

MSS_BrushHairLenSelector::~MSS_BrushHairLenSelector()
{
    // Nothing needed.
}

BM_InputSelector *
MSS_BrushHairLenSelector::ourConstructor(BM_View &viewer,
                                 PI_SelectorTemplate &templ)
{
    return new MSS_BrushHairLenSelector((OP3D_View &)viewer, templ);
}

const char *
MSS_BrushHairLenSelector::className() const
{
    return "MSS_BrushHairLenSelector";
}