#include "mdaSpecMeterGUI.h"
#include "mdaSpecMeter.h"
#include <X11/Xlib.h>
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <gtk/gtk.h>

#include <math.h>

CResTable pngResources = { { 128, "mdaSpecMeter.png" } };

mdaSpecMeterGUI::mdaSpecMeterGUI(AudioEffect * effect)
	: AEffGUIEditor(effect)
	, background(NULL)
{
	background = new CBitmap(128);
	rect.right = (LvzInt16) background->getWidth();
	rect.bottom = (LvzInt16) background->getHeight();
}


mdaSpecMeterGUI::~mdaSpecMeterGUI()
{
	delete background;
}


long
mdaSpecMeterGUI::open(void *ptr)
{
	AEffGUIEditor::open(ptr);

	CPoint offs(0, 0);
	CRect size(0, 0, background->getWidth(), background->getHeight());
	frame = new CFrame(size, ptr, this);

	size.offset(0, 0);
	draw = new CDraw(size, 0.0f, background);
	frame->addView(draw);

	return true;
}


void
mdaSpecMeterGUI::close()
{
	delete frame;
	frame = 0;
}


void
mdaSpecMeterGUI::idle()
{
	long xnow = ((mdaSpecMeter *) effect)->counter;
	if (xnow != xtimer) {
		xtimer = xnow;

		if (draw) { // copy data from effect (this can't be the best way!)
			draw->Lpeak = ((mdaSpecMeter *) effect)->Lpeak;
			draw->Lmin = ((mdaSpecMeter *) effect)->Lmin;
			draw->Lrms = ((mdaSpecMeter *) effect)->Lrms;
			draw->Rpeak = ((mdaSpecMeter *) effect)->Rpeak;
			draw->Rmin = ((mdaSpecMeter *) effect)->Rmin;
			draw->Rrms = ((mdaSpecMeter *) effect)->Rrms;
			draw->Corr = ((mdaSpecMeter *) effect)->Corr;
			for (long i = 0; i < 13; i++) {
				draw->band[0][i] = ((mdaSpecMeter *) effect)->band[0][i];
				draw->band[1][i] = ((mdaSpecMeter *) effect)->band[1][i];
			}
			draw->setDirty(true); // trigger redraw
		}
	}

	AEffGUIEditor::idle();
}


CDraw::CDraw(CRect & size, float value, CBitmap * background):
		CControl(size)
{
	bitmap = background;

	Lpeak = Lmin = Lrms = Rpeak = Rmin = Rrms = Corr = 0.0f;
	for (long i = 0; i < 16; i++)
		band[0][i] = band[1][i] = 0.0f;

	setValue(value);
}

CDraw::~CDraw()
{
}

void
CDraw::draw(CDrawContext * pContext)
{
	long r, p;
	CRect block;
	CRect rect(0, 0, bitmap->getWidth(), bitmap->getHeight());

	bitmap->draw(pContext, rect);

	/*
	pContext->setFillColor(kGreenCColor);

	p = x2pix(Lmin);
	block(p - 3, 10, p - 1, 18);
	pContext->fillRect(block);

	p = x2pix(Rmin);
	block(p - 3, 18, p - 1, 26);
	pContext->fillRect(block);
	*/

	pContext->setFillColor(kBlackCColor);

	r = x22pix(Lrms);
	if (r > 454)
		r = 454;

	p = x2pix(Lpeak);
	if (p > 454)
		p = 454;

	block = CRect(r - 1, 10, p - 1, 18);
	pContext->fillRect(block);

	block = CRect(p - 1, 10, 478, 18);
	if (p < 454)
		pContext->fillRect(block);

	r = x22pix(Rrms);
	if (r > 454)
		r = 454;

	p = x2pix(Rpeak);
	if (p > 454)
		p = 454;

	block = CRect(r - 1, 18, p - 1, 26);
	pContext->fillRect(block);

	block = CRect(p - 1, 18, 478, 26);
	if (p < 454)
		pContext->fillRect(block);

	//block(x2pix(Rpeak), 18, 478, 26);
	//buf->fillRect(block);

	block = CRect(235, 42, 244, 134 - (long)(90 * Corr));
	pContext->fillRect(block);

	long i, x1 = 2, x2 = 256; // octave bands
	for (i = 0; i < 13; i++) {
		float dB = band[0][i];
		block = CRect(x1, 42, x1 + 18, 49 - (long)(20.0 * log(dB)));
		pContext->fillRect(block);
		x1 += 17;

		dB = band[1][i];
		block = CRect(x2, 42, x2 + 18, 49 - (long)(20.0 * log(dB)));
		pContext->fillRect(block);
		x2 += 17;
	}
}


long
CDraw::x2pix(float x)
{
	float dB = x;
	long p = 478;

	if (x > 0.00000005f)
		dB = 8.6858896f * (float)log(x);
	else
		dB = -146.0f;

	if (dB < -20.0)
		p = 293 + (long)(2.0f * dB);
	else
		p = 453 + (long)(10.0f * dB);

	return p;
}


long
CDraw::x22pix(float x) // power version for squared summed
{
	float dB = x;
	long p = 478;

	if (x > 0.00000005f)
		dB = 4.3429448f * (float)log(x);
	else
		dB = -146.0f;

	if (dB < -20.0)
		p = 293 + (long)(2.0f * dB);
	else if (dB < 0.0f)
		p = 453 + (long)(10.0f * dB);

	return p;
}