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// Copyright (c) Charles J. Cliffe
// SPDX-License-Identifier: GPL-2.0+
#include "TuningContext.h"
#include "TuningCanvas.h"
#include "ColorTheme.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());
freqStrFormatted.imbue(comma_locale);
}
void TuningContext::DrawBegin() {
glClearColor(ThemeMgr::mgr.currentTheme->generalBackground.r, ThemeMgr::mgr.currentTheme->generalBackground.g,
ThemeMgr::mgr.currentTheme->generalBackground.b, 1.0);
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 p1, float p2) {
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE);
glBegin(GL_QUADS);
glColor4f(r * 0.5, g * 0.5, b * 0.5, a);
glVertex2f(-1.0 + p2 * 2.0, 1.0);
glVertex2f(-1.0 + p1 * 2.0, 1.0);
glColor4f(r, g, b, a);
glVertex2f(-1.0 + p1 * 2.0, 0.0);
glVertex2f(-1.0 + p2 * 2.0, 0.0);
glVertex2f(-1.0 + p2 * 2.0, 0.0);
glVertex2f(-1.0 + p1 * 2.0, 0.0);
glColor4f(r * 0.5, g * 0.5, b * 0.5, a);
glVertex2f(-1.0 + p1 * 2.0, -1.0);
glVertex2f(-1.0 + p2 * 2.0, -1.0);
glEnd();
glDisable(GL_BLEND);
}
void TuningContext::DrawEnd() {
// glFlush();
// CheckGLError();
}
void TuningContext::DrawTuner(long long freq, int count, float displayPos, float displayWidth) {
GLint vp[4];
glGetIntegerv( GL_VIEWPORT, vp);
float viewWidth = (float) vp[2];
float viewHeight = (float) vp[3];
freqStr.str("");
freqStr << freq;
std::string freqChars = freqStr.str();
int fontSize = 32;
if (viewWidth < 300) {
fontSize = 18;
} else if (viewWidth < 500) {
fontSize = 24;
}
if (viewHeight < 18) {
fontSize = 12;
} else if (viewHeight < 24) {
fontSize = 16;
} else if (viewHeight < 28) {
fontSize = 18;
}
glColor3f(ThemeMgr::mgr.currentTheme->text.r, ThemeMgr::mgr.currentTheme->text.g, ThemeMgr::mgr.currentTheme->text.b);
int numChars = freqChars.length();
int ofs = count - numChars;
//do not zoom this one:
GLFont::Drawer refDrawingFont = GLFont::getFont(fontSize);
for (int i = ofs; i < count; i++) {
float xpos = displayPos + (displayWidth / (float) count) * (float) i + ((displayWidth / 2.0) / (float) count);
refDrawingFont.drawString(freqStr.str().substr(i - ofs, 1), xpos, 0, GLFont::GLFONT_ALIGN_CENTER, GLFont::GLFONT_ALIGN_CENTER);
}
glColor4f(0.65f, 0.65f, 0.65f, 0.25f);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBegin(GL_LINES);
for (int i = count; i >= 0; i--) {
float xpos = displayPos + (displayWidth / (float) count) * (float) i;
glVertex2f(xpos, -1.0);
glVertex2f(xpos, 1.0);
}
glEnd();
glDisable(GL_BLEND);
}
void TuningContext::DrawTunerDigitBox(int index, int count, float displayPos, float displayWidth, RGBA4f /* c */) {
GLint vp[4];
glGetIntegerv( GL_VIEWPORT, vp);
float viewHeight = (float) vp[3];
float pixelHeight = 2.0/viewHeight;
glColor4f(1.0, 0,0,1);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
float xpos = displayPos + (displayWidth / (float) count) * (float) (count-index);
float xpos2 = displayPos + (displayWidth / (float) count) * (float) ((count-1)-index);
glBegin(GL_LINE_STRIP);
glVertex2f(xpos, 1.0-pixelHeight);
glVertex2f(xpos, -1.0+pixelHeight);
glVertex2f(xpos2, -1.0+pixelHeight);
glVertex2f(xpos2, 1.0-pixelHeight);
glVertex2f(xpos, 1.0-pixelHeight);
glEnd();
glDisable(GL_BLEND);
}
int TuningContext::GetTunerDigitIndex(float mPos, int count, float displayPos, float displayWidth) {
mPos -= 0.5;
mPos *= 2.0;
float delta = mPos - displayPos;
if (delta < 0 || delta > displayWidth) {
return 0;
}
int index = floor((delta / displayWidth) * (count));
return count - index;
}
void TuningContext::DrawTunerBarIndexed(int start, int end, int count, float displayPos, float displayWidth, RGBA4f color, float /* alpha */, bool top,
bool bottom) {
float ofs = (displayWidth / (float) count);
float p2 = displayPos + ofs * (float) (count - start + 1);
float p1 = displayPos + ofs * (float) (count - end);
float r = color.r, g = color.g, b = color.b, a = 0.6f;
glEnable(GL_BLEND);
glBlendFunc(GL_ONE, GL_ONE);
glBegin(GL_QUADS);
if (top) {
glColor4f(r * 0.5, g * 0.5, b * 0.5, a);
glVertex2f(p2, 1.0);
glVertex2f(p1, 1.0);
glColor4f(r, g, b, a);
glVertex2f(p1, 0.0);
glVertex2f(p2, 0.0);
}
if (bottom) {
glColor4f(r, g, b, a);
glVertex2f(p2, 0.0);
glVertex2f(p1, 0.0);
glColor4f(r * 0.5, g * 0.5, b * 0.5, a);
glVertex2f(p1, -1.0);
glVertex2f(p2, -1.0);
}
glEnd();
glDisable(GL_BLEND);
}
void TuningContext::DrawDemodFreqBw(long long freq, unsigned int bw, long long center) {
DrawTuner(freq, 11, -1.0, (1.0f / 3.0f) * 2.0f);
DrawTuner(bw, 7, -1.0 + (2.25f / 3.0f), (1.0f / 4.0f) * 2.0f);
DrawTuner(center, 11, -1.0 + (2.0f / 3.0f) * 2.0, (1.0f / 3.0f) * 2.0f);
}
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