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DM/DM_InfoHook.C
/*
* Copyright (c) 2018
* 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.
*
*----------------------------------------------------------------------------
*/
#include <RE/RE_Font.h>
#include <RE/RE_Render.h>
namespace HDK_Sample {
// This sample prints the name of the current SOP in the viewport when in an
// object.
class DM_InfoRenderHook : public DM_SceneRenderHook
{
public:
DM_InfoRenderHook(DM_VPortAgent &vport)
{}
virtual bool render(RE_Render *r,
const DM_SceneHookData &hook_data)
{
// Check our display option, if not enabled, exit.
if(!hook_data.disp_options->isSceneOptionEnabled("current_info"))
return false;
DM_GeoDetail cur_detail = viewport().getCurrentDetail();
if(cur_detail.isValid() && cur_detail.getNumDetails() > 0)
{
// Draw in the default viewport font with the wire color, so
// that it is always visible regardless of color scheme.
UT_Color text_col =
hook_data.disp_options->common().defaultWireColor();
r->pushColor(text_col);
r->setFont( font );
int w = font.getStringWidth(name);
int h = font.getHeight();
// at the bottom and centered in the viewport
r->textMoveW( (hook_data.view_width - w) * 0.5, h *0.5);
r->putString( name );
r->popColor();
}
return false; // allow other forground hooks to draw.
}
};
class DM_InfoHook : public DM_SceneHook
{
public:
DM_InfoHook() : DM_SceneHook("Simple Info Display", 0)
{}
virtual DM_SceneRenderHook *newSceneRender(DM_VPortAgent &vport,
{
return new DM_InfoRenderHook(vport);
}
virtual void retireSceneRender(DM_VPortAgent &vport,
{
// Shared hooks might deference a ref count, but this example just
// creates one hook per viewport.
delete hook;
}
};
} // END HDK_Sample namespace
using namespace HDK_Sample;
void
{
table->registerSceneHook(new DM_InfoHook,
table->installSceneOption("current_info", "Current SOP Info");
}