annotate src/Modules/Output/Graphics/GraphicsViewTime.cc @ 116:47b009f2c936

- First add of a lot of graphics code from the old version. Not working yet, not even compiling yet.

// Copyright 2006-2010, Willem van Engen, Thomas Walters
//
// AIM-C: A C++ implementation of the Auditory Image Model
// http://www.acousticscale.org/AIMC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

/*!
 * \file
 * \brief Time-representation graphics view
 *
 * \author Willem van Engen <[e-mail]>
 * \date created 2006/09/26
 * \version \$Id: GraphicsViewTime.cpp 607 2008-06-25 00:14:14Z tom $
 */

#include "Support/Common.h"

#include <stdio.h>

#include "Support/SignalBank.h"
#include "Modules/Output/Graphics/GraphicsView.h"
#include "Modules/Output/Graphics/GraphicsViewTime.h"

GraphicsViewTime::GraphicsViewTime(Parameters *pParam)
	: GraphicsView(pParam) {
}

GraphicsViewTime *GraphicsViewTime::Clone(GraphicsOutputDevice *pDev) {
	GraphicsViewTime *pView = new GraphicsViewTime(m_pParam);
	// Copy everything
	pView->m_pAxisX->SetDisplayRange(m_pAxisX->m_fMax, m_pAxisX->m_fMin);
	pView->m_pAxisX->SetDisplayScale(m_pAxisX->m_pScale->getType());
	pView->m_pAxisY->SetDisplayRange(m_pAxisY->m_fMax, m_pAxisY->m_fMin);
	pView->m_pAxisY->SetDisplayScale(m_pAxisY->m_pScale->getType());
	pView->m_pAxisFreq->SetDisplayRange(m_pAxisFreq->m_fMax, m_pAxisFreq->m_fMin);
	pView->m_pAxisFreq->SetDisplayScale(m_pAxisFreq->m_pScale->getType());
	return pView;
}

void GraphicsViewTime::PlotAxes(const SignalBank &bank) {
	m_pDev->gColor3f(0.0f, 0.7f, 0.7f);
	// Vertical axis
	m_pDev->gBeginLineStrip();
	m_pDev->gVertex2f(m_fMarginLeft, m_fMarginBottom);
	m_pDev->gVertex2f(m_fMarginLeft, 1.0f - m_fMarginTop);
	m_pDev->gEnd();
	// Horizontal axis
	m_pDev->gBeginLineStrip();
	m_pDev->gVertex2f(m_fMarginLeft, m_fMarginBottom);
	m_pDev->gVertex2f(1.0f-m_fMarginRight, m_fMarginBottom);
	m_pDev->gEnd();

	if (!m_bPlotLabels)
		return;

	// Labels
	char sTxt[80];
	snprintf(sTxt, sizeof(sTxt) / sizeof(sTxt[0]),
           _S("%s [%.0f..%.0f Hz, %s scale]"),
		       m_pAxisFreq->m_sLabel ? m_pAxisFreq->m_sLabel : "",
		       m_pAxisFreq->m_fMin, m_pAxisFreq->m_fMax,
		       m_pAxisFreq->m_pScale->getName());
	m_pDev->gText2f(0.0025f, 0.35f, sTxt, true);
	if (m_bPlotScaled) {
		snprintf(sTxt, sizeof(sTxt) / sizeof(sTxt[0]),
             _S("%s [cycles, %s scale]"),
			       m_pAxisX->m_sLabel ? m_pAxisX->m_sLabel : "",
			       m_pAxisX->m_pScale->getName());
	} else {
		snprintf(sTxt, sizeof(sTxt) / sizeof(sTxt[0]),
             _S("%s [%.2f..%.2f ms, %s scale]"),
			       m_pAxisX->m_sLabel ? m_pAxisX->m_sLabel : "",
			       m_pAxisX->m_fMin,
             m_pAxisX->m_fMax,
			       m_pAxisX->m_pScale->getName());
	}
	m_pDev->gText2f(m_fMarginLeft, 0.0025f, sTxt, false);

	// Frame time
	snprintf(sTxt, sizeof(sTxt)/sizeof(sTxt[0]), _S("t=%.0f ms"),
		       pBank->getSampleTime(0));
	m_pDev->gText2f(0.8f, 0.0025f, sTxt, false);
}

void GraphicsViewTime::PlotData(const vector<float> &signal,
                                float sample_rate,
                                float yOffset,
                                float height,
                                float xScale) {
	AIM_ASSERT(pSig);
	AIM_ASSERT(xScale >= 0 && xScale <= 1);
	AIM_ASSERT(height > 0  && height <= 1);
	AIM_ASSERT(yOffset >= 0 && yOffset <= 1);
	AIM_ASSERT(m_pAxisX && m_pAxisX->m_pScale);
	AIM_ASSERT(m_pAxisY && m_pAxisY->m_pScale);

	// Make sure we get time is ms as x value
	xScale *= 1000.0 / sample_rate;
	m_pDev->gColor3f(1.0f, 1.0f, 0.8f);
	BeginDataStrip();

	// Draw the signal.
	float x = 0;
	float y = 0;
	for (int i = 0; i < signal.size(); i++) {
		// Find out where to draw and do so
		x = xScale * i;
		y = signal[i];
		x = m_pAxisX->m_pScale->FromLinearScaled(x) + 0.5f;
		y = m_pAxisY->m_pScale->FromLinearScaled(y);

		if (x < 0.0)
      continue;

		// Now fit it into the drawing area
		x = x * (1.0f - m_fMarginLeft - m_fMarginRight) + m_fMarginLeft;	// fit inside x-axis area
		PlotDataPoint(x, yOffset, y, height, false);
		/* There's no point in drawing anything when x>1.0, outside of view.
		 * x is continuously increasing, so we can just stop completely. We need to
		 * plot this point however, to finish the final line. */
		if (x > 1.0)
			break;
	}
	// Redraw the last point in case it's needed
	PlotDataPoint(x, yOffset, y, height, true);

	m_pDev->gEnd();
}