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Implemented #1205

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AlexandreRouma 2023-10-11 21:50:23 +02:00
parent 5f297b1a69
commit 78daed7879
1 changed files with 14 additions and 2 deletions
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16
core/src/gui/main_window.cpp
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@ -574,10 +574,22 @@ void MainWindow::draw() {
// Handle scrollwheel
int wheel = ImGui::GetIO().MouseWheel;
if (wheel != 0 && (gui::waterfall.mouseInFFT || gui::waterfall.mouseInWaterfall)) {
// Select factor depending on modifier keys
double interval;
if (ImGui::IsKeyDown(ImGuiKey_LeftShift)) {
interval = vfo->snapInterval * 10.0;
}
else if (ImGui::IsKeyDown(ImGuiKey_LeftAlt)) {
interval = vfo->snapInterval * 0.1;
}
else {
interval = vfo->snapInterval;
}
double nfreq;
if (vfo != NULL) {
nfreq = gui::waterfall.getCenterFrequency() + vfo->generalOffset + (vfo->snapInterval * wheel);
nfreq = roundl(nfreq / vfo->snapInterval) * vfo->snapInterval;
nfreq = gui::waterfall.getCenterFrequency() + vfo->generalOffset + (interval * wheel);
nfreq = roundl(nfreq / interval) * interval;
}
else {
nfreq = gui::waterfall.getCenterFrequency() - (gui::waterfall.getViewBandwidth() * wheel / 20.0);