CubicSDR/src/visual/TuningContext.cpp

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#include "TuningContext.h"
#include "TuningCanvas.h"
// http://stackoverflow.com/questions/7276826/c-format-number-with-commas
class comma_numpunct: public std::numpunct<char> {
protected:
virtual char do_thousands_sep() const {
return ',';
}
virtual std::string do_grouping() const {
return "\03";
}
};
TuningContext::TuningContext(TuningCanvas *canvas, wxGLContext *sharedContext) :
PrimaryGLContext(canvas, sharedContext) {
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
comma_locale = std::locale(std::locale(), new comma_numpunct());
freqStr.imbue(comma_locale);
}
void TuningContext::DrawBegin() {
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glDisable(GL_TEXTURE_2D);
}
void TuningContext::Draw(float r, float g, float b, float a, float level) {
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE);
glColor4f(r, g, b, a);
glBegin(GL_QUADS);
glVertex2f(1.0, -1.0 + 2.0 * level);
glVertex2f(-1.0, -1.0 + 2.0 * level);
glVertex2f(-1.0, -1.0);
glVertex2f(1.0, -1.0);
glEnd();
glDisable(GL_BLEND);
}
void TuningContext::DrawEnd() {
glFlush();
CheckGLError();
}
void TuningContext::DrawDemodFreqBw(long long freq, unsigned int bw, long long center) {
GLint vp[4];
glGetIntegerv( GL_VIEWPORT, vp);
float viewHeight = (float) vp[3];
float viewWidth = (float) vp[2];
PrimaryGLContext::GLFontSize fontSize = GLFONT_SIZE16;
int fontHeight = 16;
if (viewWidth < 400) {
fontSize = GLFONT_SIZE12;
fontHeight = 12;
}
getFont(fontSize).drawString("Freq: ", -0.75, 0, fontHeight, GLFont::GLFONT_ALIGN_RIGHT, GLFont::GLFONT_ALIGN_CENTER);
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if (bw) {
freqStr.str("");
freqStr << std::fixed << freq << "Hz";
} else {
freqStr.str("---");
}
getFont(fontSize).drawString(freqStr.str(), -0.75, 0, fontHeight, GLFont::GLFONT_ALIGN_LEFT, GLFont::GLFONT_ALIGN_CENTER);
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glColor3f(0.65, 0.65, 0.65);
glBegin(GL_LINES);
glVertex2f(-0.275, -1.0);
glVertex2f(-0.275, 1.0);
glEnd();
getFont(fontSize).drawString("BW: ", -0.10, 0, fontHeight, GLFont::GLFONT_ALIGN_RIGHT, GLFont::GLFONT_ALIGN_CENTER);
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if (bw) {
freqStr.str("");
freqStr << std::fixed << bw << "Hz";
} else {
freqStr.str("---");
}
getFont(fontSize).drawString(freqStr.str(), -0.10, 0, fontHeight, GLFont::GLFONT_ALIGN_LEFT, GLFont::GLFONT_ALIGN_CENTER);
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glColor3f(0.65, 0.65, 0.65);
glBegin(GL_LINES);
glVertex2f(0.275, -1.0);
glVertex2f(0.275, 1.0);
glEnd();
getFont(fontSize).drawString("CTR: ", 0.50, 0, fontHeight, GLFont::GLFONT_ALIGN_RIGHT, GLFont::GLFONT_ALIGN_CENTER);
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if (center) {
freqStr.str("");
freqStr << std::fixed << center << "Hz";
} else {
freqStr.str("---");
}
getFont(fontSize).drawString(freqStr.str(), 0.50, 0, fontHeight, GLFont::GLFONT_ALIGN_LEFT, GLFont::GLFONT_ALIGN_CENTER);
}