hhoopstestview.cpp

使用HOOPS库开发的一个教学演示工具。

// HhoopstestView.cpp : implementation of the HhoopstestView class
// 

// Standard includes
#include "StdAfx.h"
#include "Resource.h"
#include <assert.h>
#include <math.h>
#include "hc.h"

#include "HhoopstestView.h"
#include "HhoopstestModel.h"
#include "HhoopstestSelectionSet.h"


#include "HSharedKey.h"


HhoopstestView::HhoopstestView(HBaseModel *model,
    const char * 		alias,	
    const char *		driver_type,
    const char *		instance_name,
    void *				window_handle,
    void *				colormap) : HBaseView(model, alias, driver_type, instance_name, window_handle, colormap)

{
}

HhoopstestView::~HhoopstestView()
{
}


// app-specific init function
void HhoopstestView::Init()
{
	// call base's init function first to get the default HOOPS hierarchy for the view
	HBaseView::Init();

	// create our app-specific Selection object and initialize
	m_pSelection = new HhoopstestSelectionSet(this);
    m_pSelection->Init();

	// TODO: Add your initialization here
}


//	Override FitWorld to always fire CameraPositionChanged
//	with emit_message so that the clients get in sync
void HhoopstestView::FitWorld(HPoint * center_out)
{
	HBaseView::FitWorld(center_out);
	CameraPositionChanged( true, GetSmoothTransition());
}

// Override this. We might be in body level selection 
// while the master client might want us to select a face. 
// call my_sel->SelectFromMessage rather than my_sel->Select
void HhoopstestView::SelectFromMessage(const char *in_data, unsigned int data_length)
{
    char data[8192];
	int isSelect = false;
	long ident = 0;
	HC_KEY key = 0;

    memcpy(data, in_data, data_length);
    data[data_length] = '\0';
    sscanf(data, "%d %d", &isSelect, &ident);

	if (m_pSharedKey && (key = m_pSharedKey->GetKeyFromIdent(ident)))
	{
		HhoopstestSelectionSet* my_sel = (HhoopstestSelectionSet*) GetSelection();
		assert( my_sel );
		if (isSelect)
			my_sel->SelectFromMessage(key, "", INVALID_KEY, INVALID_KEY);
		else
			my_sel->DeSelectFromMessage(key);

	}
}

//	Override the base Flush to remove any solid modeler objects present
void HhoopstestView::Flush(bool emit_message)
{
	HhoopstestModel* model = (HhoopstestModel*) GetModel();

	if( model )
		model->DeleteAllEntities();

	HBaseView::Flush(emit_message);
}

void HhoopstestView::FlushFromMessage(const char *in_data, unsigned int data_length)
{
	HhoopstestModel* model = (HhoopstestModel*) GetModel();

	if( model )
		model->DeleteAllEntities();

	HBaseView::FlushFromMessage(in_data, data_length);
}