colorrampcombobox.h File Reference

Slice BB-α — QComboBox that previews built-in + custom colour ramps as horizontal gradient swatches in the dropdown. More...

#include "render/colorramp.h"
#include <QComboBox>

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Classes
class	ColorRampComboBox

Detailed Description

Slice BB-α — QComboBox that previews built-in + custom colour ramps as horizontal gradient swatches in the dropdown.

Author

Caleb Buahin caleb.nosp@m..bua.nosp@m.hin@g.nosp@m.mail.nosp@m..com

Date

2026

License\n GPL-3.0-or-later

Mirrors the QGIS / ArcGIS Pro idiom: each row shows the actual gradient (not just a name) so the user picks visually. The trailing "Edit Custom Ramp…" row opens the existing ColorRampEditorDialog (WIP carved 2026-05-22) to author a new ramp; on OK the ramp is appended to the user's custom-ramp library (PreferencesManager → Rendering/CustomRamps) and selected.

Consumers wire it like any QComboBox: connect(combo, &ColorRampComboBox::rampChanged, layer, [](const RasterColorRamp &r){ layer->setColorRamp(r); });

Cross-slice: GUI_IMPLEMENTATION_PLAN.md §L.BB-α Phase BB-α.2.