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Piano: Use switch statements on m_wave_type

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This commit is contained in:
William McPherson 2019-12-26 01:47:28 +11:00 • committed by Andreas Kling
parent e80061c808
commit bc65971df6
1 changed files with 46 additions and 45 deletions
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91
Applications/Piano/PianoWidget.cpp
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@ -22,16 +22,23 @@ void PianoWidget::paint_event(GPaintEvent& event)
auto* samples = m_front_buffer;
Color wave_color;
if (m_wave_type == WaveType::Sine)
switch (m_wave_type) {
case WaveType::Sine:
wave_color = Color(255, 192, 0);
else if (m_wave_type == WaveType::Saw)
break;
case WaveType::Saw:
wave_color = Color(240, 100, 128);
else if (m_wave_type == WaveType::Square)
break;
case WaveType::Square:
wave_color = Color(128, 160, 255);
else if (m_wave_type == WaveType::Triangle)
break;
case WaveType::Triangle:
wave_color = Color(35, 171, 35);
else if (m_wave_type == WaveType::Noise)
break;
case WaveType::Noise:
wave_color = Color(197, 214, 225);
break;
}
int prev_x = 0;
int prev_y = m_height / 2;
@ -70,16 +77,23 @@ void PianoWidget::fill_audio_buffer(uint8_t* stream, int len)
if (!m_note_on[n])
continue;
double val = 0;
if (m_wave_type == WaveType::Sine)
switch (m_wave_type) {
case WaveType::Sine:
val = ((volume * m_power[n]) * w_sine(n));
else if (m_wave_type == WaveType::Saw)
break;
case WaveType::Saw:
val = ((volume * m_power[n]) * w_saw(n));
else if (m_wave_type == WaveType::Square)
break;
case WaveType::Square:
val = ((volume * m_power[n]) * w_square(n));
else if (m_wave_type == WaveType::Triangle)
break;
case WaveType::Triangle:
val = ((volume * m_power[n]) * w_triangle(n));
else if (m_wave_type == WaveType::Noise)
break;
case WaveType::Noise:
val = ((volume * m_power[n]) * w_noise());
break;
}
sst[i].left += val;
}
sst[i].right = sst[i].left;
@ -427,42 +441,29 @@ void PianoWidget::render_knobs(GPainter& painter)
painter.draw_rect(octave_knob_rect, Color(oshade, oshade, oshade));
painter.draw_text(octave_knob_rect, text, TextAlignment::Center, Color(oshade, oshade, oshade));
int r = 0, g = 0, b = 0;
if (m_wave_type == WaveType::Sine) {
r = 255;
g = 192;
b = 0;
} else if (m_wave_type == WaveType::Saw) {
r = 240;
g = 100;
b = 128;
} else if (m_wave_type == WaveType::Square) {
r = 128;
g = 160;
b = 255;
} else if (m_wave_type == WaveType::Triangle) {
r = 35;
g = 171;
b = 35;
} else if (m_wave_type == WaveType::Noise) {
r = 197;
g = 214;
b = 225;
}
Rect wave_knob_rect(m_width - knob_width - 16 - knob_width - 16, m_height - 30, knob_width, 16);
const char* wave_name = "";
if (m_wave_type == WaveType::Sine)
wave_name = "C: Sine ";
else if (m_wave_type == WaveType::Saw)
wave_name = "C: Sawtooth";
else if (m_wave_type == WaveType::Square)
wave_name = "C: Square ";
else if (m_wave_type == WaveType::Triangle)
wave_name = "C: Triangle";
else if (m_wave_type == WaveType::Noise)
wave_name = "C: Noise ";
painter.draw_rect(wave_knob_rect, Color(r, g, b));
painter.draw_text(wave_knob_rect, wave_name, TextAlignment::Center, Color(r, g, b));
switch (m_wave_type) {
case WaveType::Sine:
painter.draw_rect(wave_knob_rect, Color(255, 192, 0));
painter.draw_text(wave_knob_rect, "C: Sine ", TextAlignment::Center, Color(255, 192, 0));
break;
case WaveType::Saw:
painter.draw_rect(wave_knob_rect, Color(240, 100, 128));
painter.draw_text(wave_knob_rect, "C: Sawtooth", TextAlignment::Center, Color(240, 100, 128));
break;
case WaveType::Square:
painter.draw_rect(wave_knob_rect, Color(128, 160, 255));
painter.draw_text(wave_knob_rect, "C: Square ", TextAlignment::Center, Color(128, 160, 255));
break;
case WaveType::Triangle:
painter.draw_rect(wave_knob_rect, Color(35, 171, 35));
painter.draw_text(wave_knob_rect, "C: Triangle", TextAlignment::Center, Color(35, 171, 35));
break;
case WaveType::Noise:
painter.draw_rect(wave_knob_rect, Color(197, 214, 225));
painter.draw_text(wave_knob_rect, "C: Noise ", TextAlignment::Center, Color(197, 214, 225));
break;
}
}
static int roll_columns = 32;