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Grid line drawing cleanup/tweak

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This commit is contained in:
Charles J. Cliffe 2015-03-01 19:08:06 -05:00
parent da5ef47fb2
commit 9e53d25394
1 changed files with 24 additions and 51 deletions
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75
src/visual/SpectrumContext.cpp
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@ -57,63 +57,36 @@ void SpectrumContext::Draw(std::vector<float> &points, long long freq, int bandw
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
float p = 0;
float range = ceilValue-floorValue;
float 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 } };
if (range > 80.0) {
float a = 0.5;
for (int i = 0; i < 3; i++) {
float p = 0;
float rangeMin = ranges[i][0];
float rangeMax = ranges[i][1];
float rangeTrans = ranges[i][2];
float rangeStep = ranges[i][3];
if (range < 100.0) {
a *= (20.0-(100.0-range))/20.0;
if (range >= rangeMin && range <= rangeMax) {
float a = 1.0;
if (range <= rangeMin+rangeTrans) {
a *= (range-rangeMin)/rangeTrans;
}
if (range >= rangeMax-rangeTrans) {
a *= (rangeTrans-(range-(rangeMax-rangeTrans)))/rangeTrans;
}
glColor4f(0.12, 0.12, 0.12, a);
glBegin(GL_LINES);
for (float l = floorValue; l<=ceilValue+rangeStep; l+=rangeStep) {
p += rangeStep/range;
glVertex2f(0,p); glVertex2f(1,p);
}
glEnd();
}
glColor4f(0.2, 0.2, 0.2, a);
glBegin(GL_LINES);
for (float l = floorValue; l<=ceilValue+100.0; l+=100.0) {
p += 100.0/range;
glVertex2f(0,p); glVertex2f(1,p);
}
glEnd();
}
p = 0;
if (range > 20.0 && range < 100.0) {
float a = 0.5;
if (range <= 40.0) {
a *= ((range-20.0)/20.0);
}
if (range >= 80.0) {
a *= ((20.0-(range-80.0))/20.0);
}
glColor4f(0.2, 0.2, 0.2, a);
glBegin(GL_LINES);
for (float l = floorValue; l<=ceilValue+10.0; l+=10.0) {
p += 10.0/range;
glVertex2f(0,p); glVertex2f(1,p);
}
glEnd();
}
p = 0;
if (range <= 40.0) {
float a = 0.5;
if (range >= 20.0) {
a *= ((20.0-(range-20.0))/20.0);
}
glColor4f(0.2, 0.2, 0.2, a);
glBegin(GL_LINES);
for (float l = floorValue; l<=ceilValue+1.0; l+=1.0) {
p += 1.0/(ceilValue-floorValue);
glVertex2f(0,p); glVertex2f(1,p);
}
glEnd();
}
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor3f(ThemeMgr::mgr.currentTheme->fftLine.r, ThemeMgr::mgr.currentTheme->fftLine.g, ThemeMgr::mgr.currentTheme->fftLine.b);
glEnableClientState(GL_VERTEX_ARRAY);