[refactor]: c++ implementation (#13)
implemented in c++ to improve readability and simplify maintenance Co-authored-by: HiveBeats <e1lama@protonmail.com> Reviewed-on: #13
This commit is contained in:
196
src/Renderer.cpp
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196
src/Renderer.cpp
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#include "Renderer.h"
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#define RAYGUI_IMPLEMENTATION
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#include "raygui.h"
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#include "Settings.h"
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#include "Logger.h"
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Renderer::Renderer(/* args */)
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{
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InitWindow(WINDOW_WIDTH, WINDOW_HEIGHT, "SeeSynth - v0.2");
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SetTargetFPS(60);
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}
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Renderer::~Renderer()
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{
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}
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void Renderer::Draw(Synth& synth, SynthGuiState& synthGui)
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{
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BeginDrawing();
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ClearBackground(RAYWHITE);
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//todo: implement renderer
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DrawUi(synth, synthGui);
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DrawSignal(synth, synthGui);
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//DrawText("Congrats! You created your first window!", 190, 200, 20, LIGHTGRAY);
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//DrawFPS(0,0);
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EndDrawing();
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}
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void Renderer::DrawSignal(Synth & synth, SynthGuiState & synthGui)
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{
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GuiGrid((Rectangle){0, 0, WINDOW_WIDTH, WINDOW_HEIGHT}, "", WINDOW_HEIGHT / 8, 2);
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auto signal = synth.GetOutSignal();
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Vector2* signal_points = new Vector2[signal.size()];
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const float screen_vertical_midpoint = (WINDOW_HEIGHT/2);
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for (int point_idx = 0; point_idx < signal.size(); point_idx++)
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{
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signal_points[point_idx].x = (float)point_idx + OSCILLATOR_PANEL_WIDTH;
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signal_points[point_idx].y = screen_vertical_midpoint + (int)(signal[point_idx] * 300);
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}
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DrawLineStrip(signal_points, signal.size(), RED);
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delete[] signal_points;
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}
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void Renderer::DrawOscillatorsShapeInputs(const std::vector<Oscillator*>& oscillators, const std::vector<OscillatorGuiState*>& guiOscillators)
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{
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#define WAVE_SHAPE_OPTIONS "Sine;Triangle;Sawtooth;Square"
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// DRAW OSCILLATOR SHAPE INPUTS
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for (int i = 0; i < oscillators.size(); i += 1)
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{
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OscillatorGuiState* ui_osc = guiOscillators[i];
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assert(ui_osc);
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Oscillator* osc = oscillators[i];
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assert(osc);
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// Shape select
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int shape_index = (int)(ui_osc->waveshape);
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bool is_dropdown_click = GuiDropdownBox(ui_osc->shape_dropdown_rect,
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WAVE_SHAPE_OPTIONS,
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&shape_index,
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ui_osc->is_dropdown_open
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);
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if (is_dropdown_click)
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{
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write_log("Dropdown clicked!\n");
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ui_osc->is_dropdown_open = !ui_osc->is_dropdown_open;
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ui_osc->waveshape = (OscillatorType)(shape_index);
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// APPLY STATE TO REAL OSC
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osc->SetType(ui_osc->waveshape);
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}
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if (ui_osc->is_dropdown_open) break;
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}
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}
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void Renderer::DrawOscillatorsPanels(const std::vector<Oscillator*>& oscillators,
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const std::vector<OscillatorGuiState*>& guiOscillators,
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const Rectangle& panel_bounds)
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{
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float panel_y_offset = 0;
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for (int i = 0; i < oscillators.size(); i++)
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{
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OscillatorGuiState* ui_osc = guiOscillators[i];
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assert(ui_osc);
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Oscillator* osc = oscillators[i];
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assert(osc);
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const bool has_shape_param = (ui_osc->waveshape == Square);
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// Draw Oscillator Panel
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const int osc_panel_width = panel_bounds.width - 20;
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const int osc_panel_height = has_shape_param ? 130 : 100;
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const int osc_panel_x = panel_bounds.x + 10;
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const int osc_panel_y = panel_bounds.y + 50 + panel_y_offset;
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panel_y_offset += osc_panel_height + 5;
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GuiPanel((Rectangle){
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(float)osc_panel_x,
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(float)osc_panel_y,
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(float)osc_panel_width,
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(float)osc_panel_height
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},
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"");
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const float slider_padding = 50.f;
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const float el_spacing = 5.f;
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Rectangle el_rect = {
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.x = (float)osc_panel_x + slider_padding + 30,
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.y = (float)osc_panel_y + 10,
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.width = (float)osc_panel_width - (slider_padding * 2),
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.height = 25.f
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};
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// Volume slider
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float decibels = (20.f * log10f(osc->GetVolume()));
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char amp_slider_label[32];
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sprintf(amp_slider_label, "%.1f dB", decibels);
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decibels = GuiSlider(el_rect,
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amp_slider_label,
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"",
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decibels,
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-60.0f,
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0.0f
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);
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ui_osc->volume = powf(10.f, decibels * (1.f/20.f));
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osc->SetVolume(ui_osc->volume);
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el_rect.y += el_rect.height + el_spacing;
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// Defer shape drop-down box.
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ui_osc->shape_dropdown_rect = el_rect;
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el_rect.y += el_rect.height + el_spacing;
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/*
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Rectangle delete_button_rect = el_rect;
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delete_button_rect.x = osc_panel_x + 5;
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delete_button_rect.y -= el_rect.height + el_spacing;
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delete_button_rect.width = 30;
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bool is_delete_button_pressed = GuiButton(delete_button_rect, "X");
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if (is_delete_button_pressed)
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{
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memmove(
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synth->ui_oscillator + ui_osc_i,
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synth->ui_oscillator + ui_osc_i + 1,
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(synth->ui_oscillator_count - ui_osc_i) * sizeof(UiOscillator)
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);
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synth->ui_oscillator_count -= 1;
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}
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*/
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}
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}
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void Renderer::DrawMainPanel(const Rectangle& panel_bounds)
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{
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bool is_shape_dropdown_open = false;
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int shape_index = 0;
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GuiPanel(panel_bounds, "");
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}
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void Renderer::DrawAddOscillatorButton(Synth & synth, SynthGuiState & synthGui, Rectangle panel_bounds)
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{
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bool click_add_oscillator = GuiButton((Rectangle){
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panel_bounds.x + 10,
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panel_bounds.y + 10,
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panel_bounds.width - 20,
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25.f
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}, "Add Oscillator");
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if (click_add_oscillator)
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{
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synth.AddOscillator();
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Oscillator* osc = synth.GetOscillators().back();
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OscillatorGuiState* ui = new OscillatorGuiState {
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.freq = osc->GetFreq(),
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.waveshape = osc->GetType(),
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.volume = osc->GetVolume()
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};
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synthGui.oscillators.push_back(ui);
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}
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}
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void Renderer::DrawUi(Synth & synth, SynthGuiState & synthGui)
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{
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Rectangle panel_bounds = {.x = 0, .y = 0, .width = OSCILLATOR_PANEL_WIDTH, .height = WINDOW_HEIGHT };
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DrawMainPanel(panel_bounds);
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DrawAddOscillatorButton(synth, synthGui, panel_bounds);
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// Draw Oscillators
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std::vector<Oscillator*> oscillators = synth.GetOscillators();
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std::vector<OscillatorGuiState*> guiOscillators = synthGui.oscillators;
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DrawOscillatorsPanels(oscillators, guiOscillators, panel_bounds);
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DrawOscillatorsShapeInputs(oscillators, guiOscillators);
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}
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