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optional additive blending for the spectrogram

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This commit is contained in:
Erik Bročko
2026-03-29 03:04:12 +02:00
parent baf6fd94cc
commit 3b4f507df9
5 changed files with 78 additions and 34 deletions
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5
src/ui/Application.cpp
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@@ -467,6 +467,9 @@ void Application::render() {
if (ImGui::BeginMenu("View")) {
ImGui::MenuItem("Grid", nullptr, &specDisplay_.showGrid);
ImGui::MenuItem("Fill Spectrum", nullptr, &specDisplay_.fillSpectrum);
ImGui::MenuItem("Additive Blend", nullptr, &specDisplay_.additiveBlend);
if (ImGui::IsItemHovered())
ImGui::SetTooltip("Mix multi-channel spectrum colors additively");
ImGui::Separator();
if (ImGui::MenuItem("VSync", nullptr, &vsync_)) {
SDL_GL_SetSwapInterval(vsync_ ? 1 : 0);
@@ -669,6 +672,7 @@ void Application::loadConfig() {
showSidebar_ = config_.getBool("show_sidebar", showSidebar_);
specDisplay_.peakHoldEnable = config_.getBool("peak_hold", specDisplay_.peakHoldEnable);
specDisplay_.peakHoldDecay = config_.getFloat("peak_hold_decay", specDisplay_.peakHoldDecay);
specDisplay_.additiveBlend = config_.getBool("additive_blend", specDisplay_.additiveBlend);
cursors_.snapToPeaks = config_.getBool("snap_to_peaks", cursors_.snapToPeaks);
measurements_.traceMinFreq = config_.getFloat("trace_min_freq", measurements_.traceMinFreq);
measurements_.traceMaxFreq = config_.getFloat("trace_max_freq", measurements_.traceMaxFreq);
@@ -732,6 +736,7 @@ void Application::saveConfig() const {
cfg.setBool("show_sidebar", showSidebar_);
cfg.setBool("peak_hold", specDisplay_.peakHoldEnable);
cfg.setFloat("peak_hold_decay", specDisplay_.peakHoldDecay);
cfg.setBool("additive_blend", specDisplay_.additiveBlend);
cfg.setBool("snap_to_peaks", cursors_.snapToPeaks);
cfg.setFloat("trace_min_freq", measurements_.traceMinFreq);
cfg.setFloat("trace_max_freq", measurements_.traceMaxFreq);