mirror of
https://github.com/cjcliffe/CubicSDR.git
synced 2024-11-15 16:41:54 -05:00
251 lines
8.0 KiB
C++
251 lines
8.0 KiB
C++
#include "SpectrumPanel.h"
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#include <sstream>
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#include <iostream>
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#include <iomanip>
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#include "ColorTheme.h"
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SpectrumPanel::SpectrumPanel() : floorValue(0), ceilValue(1), showDb(false), fftSize(2048) {
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setFill(GLPANEL_FILL_GRAD_Y);
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setFillColor(ThemeMgr::mgr.currentTheme->fftBackground * 2.0, ThemeMgr::mgr.currentTheme->fftBackground);
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dbPanelCeil.setMarginPx(0);
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dbPanelCeil.setFill(GLPanel::GLPANEL_FILL_GRAD_X);
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dbPanelCeil.setFillColor(RGBA4f(0.2,0.2,0.2,5.0), RGBA4f(0.2,0.2,0.2,0.0));
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dbPanelFloor.setMarginPx(0);
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dbPanelFloor.setFill(GLPanel::GLPANEL_FILL_GRAD_X);
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dbPanelFloor.setFillColor(RGBA4f(0.2,0.2,0.2,5.), RGBA4f(0.2,0.2,0.2,0.0));
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}
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float SpectrumPanel::getFloorValue() {
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return floorValue;
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}
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void SpectrumPanel::setFloorValue(float floorValue) {
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this->floorValue = floorValue;
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}
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float SpectrumPanel::getCeilValue() {
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return ceilValue;
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}
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void SpectrumPanel::setCeilValue(float ceilValue) {
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this->ceilValue = ceilValue;
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}
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void SpectrumPanel::setFreq(long long freq) {
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this->freq = freq;
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}
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long long SpectrumPanel::getFreq() {
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return freq;
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}
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void SpectrumPanel::setBandwidth(long long bandwidth) {
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this->bandwidth = bandwidth;
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}
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long long SpectrumPanel::getBandwidth() {
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return bandwidth;
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}
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void SpectrumPanel::setFFTSize(int fftSize_in) {
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this->fftSize = fftSize_in;
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}
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int SpectrumPanel::getFFTSize() {
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return fftSize;
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}
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void SpectrumPanel::setShowDb(bool showDb) {
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this->showDb = showDb;
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if (showDb) {
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addChild(&dbPanelCeil);
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addChild(&dbPanelFloor);
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} else {
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removeChild(&dbPanelCeil);
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removeChild(&dbPanelFloor);
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}
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}
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bool SpectrumPanel::getShowDb() {
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return showDb;
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}
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void SpectrumPanel::setPoints(std::vector<float> &points) {
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this->points.assign(points.begin(), points.end());
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}
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void SpectrumPanel::drawPanelContents() {
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glDisable(GL_TEXTURE_2D);
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glEnable(GL_BLEND);
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glEnable(GL_LINE_SMOOTH);
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glHint( GL_LINE_SMOOTH_HINT, GL_NICEST );
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glLoadMatrixf(transform * (CubicVR::mat4::translate(-1.0f, -0.75f, 0.0f) * CubicVR::mat4::scale(2.0f, 1.5f, 1.0f)));
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if (points.size()) {
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glBlendFunc(GL_SRC_ALPHA, GL_ONE);
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double range = ceilValue-floorValue;
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double ranges[3][4] = { { 90.0, 5000.0, 10.0, 100.0 }, { 20.0, 150.0, 10.0, 10.0 }, { -20.0, 30.0, 10.0, 1.0 } };
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for (int i = 0; i < 3; i++) {
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double p = 0;
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double rangeMin = ranges[i][0];
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double rangeMax = ranges[i][1];
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double rangeTrans = ranges[i][2];
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double rangeStep = ranges[i][3];
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if (range >= rangeMin && range <= rangeMax) {
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double a = 1.0;
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if (range <= rangeMin+rangeTrans) {
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a *= (range-rangeMin)/rangeTrans;
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}
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if (range >= rangeMax-rangeTrans) {
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a *= (rangeTrans-(range-(rangeMax-rangeTrans)))/rangeTrans;
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}
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glColor4f(0.12, 0.12, 0.12, a);
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glBegin(GL_LINES);
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for (double l = floorValue; l<=ceilValue+rangeStep; l+=rangeStep) {
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p += rangeStep/range;
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glVertex2f(0,p); glVertex2f(1,p);
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}
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glEnd();
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}
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}
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glColor3f(ThemeMgr::mgr.currentTheme->fftLine.r, ThemeMgr::mgr.currentTheme->fftLine.g, ThemeMgr::mgr.currentTheme->fftLine.b);
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glEnableClientState(GL_VERTEX_ARRAY);
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glVertexPointer(2, GL_FLOAT, 0, &points[0]);
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glDrawArrays(GL_LINE_STRIP, 0, points.size() / 2);
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glDisableClientState(GL_VERTEX_ARRAY);
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}
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GLint vp[4];
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glGetIntegerv( GL_VIEWPORT, vp);
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float viewHeight = (float) vp[3];
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float viewWidth = (float) vp[2];
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glLoadMatrixf(transform);
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long long leftFreq = (double) freq - ((double) bandwidth / 2.0);
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long long rightFreq = leftFreq + (double) bandwidth;
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long long hzStep = 1000000;
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long double mhzStep = (100000.0 / (long double) (rightFreq - leftFreq)) * 2.0;
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double mhzVisualStep = 0.1;
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std::stringstream label;
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label.precision(1);
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if (mhzStep * 0.5 * viewWidth < 40) {
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mhzStep = (250000.0 / (long double) (rightFreq - leftFreq)) * 2.0;
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mhzVisualStep = 0.25;
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if (mhzStep * 0.5 * viewWidth < 40) {
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mhzStep = (500000.0 / (long double) (rightFreq - leftFreq)) * 2.0;
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mhzVisualStep = 0.5;
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}
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if (mhzStep * 0.5 * viewWidth < 40) {
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mhzStep = (1000000.0 / (long double) (rightFreq - leftFreq)) * 2.0;
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mhzVisualStep = 1.0;
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}
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if (mhzStep * 0.5 * viewWidth < 40) {
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mhzStep = (2500000.0 / (long double) (rightFreq - leftFreq)) * 2.0;
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mhzVisualStep = 2.5;
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}
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if (mhzStep * 0.5 * viewWidth < 40) {
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mhzStep = (5000000.0 / (long double) (rightFreq - leftFreq)) * 2.0;
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mhzVisualStep = 5.0;
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}
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if (mhzStep * 0.5 * viewWidth < 40) {
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mhzStep = (10000000.0 / (long double) (rightFreq - leftFreq)) * 2.0;
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mhzVisualStep = 10.0;
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}
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if (mhzStep * 0.5 * viewWidth < 40) {
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mhzStep = (50000000.0 / (long double) (rightFreq - leftFreq)) * 2.0;
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mhzVisualStep = 50.0;
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}
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} else if (mhzStep * 0.5 * viewWidth > 350) {
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mhzStep = (10000.0 / (long double) (rightFreq - leftFreq)) * 2.0;
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mhzVisualStep = 0.01;
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label.precision(2);
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}
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long long firstMhz = (leftFreq / hzStep) * hzStep;
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long double mhzStart = ((long double) (firstMhz - leftFreq) / (long double) (rightFreq - leftFreq)) * 2.0;
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long double currentMhz = trunc(floor(firstMhz / (long double)1000000.0));
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double hPos = 1.0 - (16.0 / viewHeight);
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double lMhzPos = 1.0 - (5.0 / viewHeight);
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for (double m = -1.0 + mhzStart, mMax = 1.0 + ((mhzStart>0)?mhzStart:-mhzStart); m <= mMax; m += mhzStep) {
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label << std::fixed << currentMhz;
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double fractpart, intpart;
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fractpart = modf(currentMhz, &intpart);
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if (fractpart < 0.001) {
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glLineWidth(4.0);
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glColor3f(ThemeMgr::mgr.currentTheme->freqLine.r, ThemeMgr::mgr.currentTheme->freqLine.g, ThemeMgr::mgr.currentTheme->freqLine.b);
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} else {
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glLineWidth(1.0);
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glColor3f(ThemeMgr::mgr.currentTheme->freqLine.r * 0.65, ThemeMgr::mgr.currentTheme->freqLine.g * 0.65,
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ThemeMgr::mgr.currentTheme->freqLine.b * 0.65);
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}
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glDisable(GL_TEXTURE_2D);
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glBegin(GL_LINES);
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glVertex2f(m, lMhzPos);
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glVertex2f(m, 1);
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glEnd();
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glColor4f(ThemeMgr::mgr.currentTheme->text.r, ThemeMgr::mgr.currentTheme->text.g, ThemeMgr::mgr.currentTheme->text.b,1.0);
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GLFont::getFont(GLFont::GLFONT_SIZE12).drawString(label.str(), m, hPos, 12, GLFont::GLFONT_ALIGN_CENTER, GLFont::GLFONT_ALIGN_CENTER);
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label.str(std::string());
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currentMhz += mhzVisualStep;
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}
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glLineWidth(1.0);
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if (showDb) {
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float dbPanelWidth = (1.0/viewWidth)*75.0;
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float dbPanelHeight = (1.0/viewHeight)*14.0;
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std::stringstream ssLabel;
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ssLabel << std::fixed << std::setprecision(1) << (20.0 * log10(2.0*(getCeilValue())/(double)fftSize)) << "dB";
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dbPanelCeil.setText(ssLabel.str(), GLFont::GLFONT_ALIGN_RIGHT);
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dbPanelCeil.setSize(dbPanelWidth, dbPanelHeight);
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dbPanelCeil.setPosition(-1.0 + dbPanelWidth, 1.0 - dbPanelHeight);
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ssLabel.str("");
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ssLabel << (20.0 * log10(2.0*(getFloorValue())/(double)fftSize)) << "dB";
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dbPanelFloor.setText(ssLabel.str(), GLFont::GLFONT_ALIGN_RIGHT);
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dbPanelFloor.setSize(dbPanelWidth, dbPanelHeight);
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dbPanelFloor.setPosition(-1.0 + dbPanelWidth, - 1.0 + dbPanelHeight);
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}
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}
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