ColorRampComboBox Class Reference

#include <colorrampcombobox.h>

Inheritance diagram for ColorRampComboBox:

Collaboration diagram for ColorRampComboBox:

Signals
void	rampChanged (const RasterColorRamp &ramp)
void	customRampSaved (const QString &name, const RasterColorRamp &ramp)

Public Member Functions
	ColorRampComboBox (QWidget *parent=nullptr)
	~ColorRampComboBox () override
RasterColorRamp	currentRamp () const
bool	currentIsCustom () const
void	setCurrentRampByName (const QString &name)
void	ensureRampSelected (const QString &name, const RasterColorRamp &ramp)
void	rebuildItems ()

Protected Member Functions
void	paintEvent (QPaintEvent *event) override

Constructor & Destructor Documentation

ColorRampComboBox()

ColorRampComboBox::ColorRampComboBox ( QWidget *  parent = nullptr )

explicit

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~ColorRampComboBox()

ColorRampComboBox::~ColorRampComboBox ( )

overridedefault

Member Function Documentation

currentIsCustom()

bool ColorRampComboBox::currentIsCustom

(

)

const

True when the current selection is a user-authored (custom) ramp rather than a built-in. Consumers that persist ramps by NAME must check this and store the full payload instead — builtin-name lookup degrades unknown names to grayscale.

currentRamp()

RasterColorRamp ColorRampComboBox::currentRamp

(

)

const

Currently-selected ramp (built-in or user-custom). Returns RasterColorRamp::grayscale() when the "Edit Custom Ramp…" sentinel row is the active selection.

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customRampSaved

void ColorRampComboBox::customRampSaved ( const QString &  name, const RasterColorRamp &  ramp  )

signal

Emitted after the user saves a new ramp from the editor dialog (Edit Custom Ramp…). The new ramp is appended to the combo and also persisted to PreferencesManager.

ensureRampSelected()

void ColorRampComboBox::ensureRampSelected	(	const QString &	name,
		const RasterColorRamp &	ramp
	)

Select the ramp named name; when no row carries that name (a custom ramp authored on another machine, or one since deleted from the preferences library) a transient "custom" row is inserted from the supplied payload so the swatch and selection stay truthful.

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paintEvent()

void ColorRampComboBox::paintEvent ( QPaintEvent *  event )

overrideprotected

Slice S4 — override the QComboBox default text-only closed state so the gradient swatch keeps rendering after selection. QGIS / ArcGIS Pro idiom.

rampChanged

void ColorRampComboBox::rampChanged ( const RasterColorRamp &  ramp )

signal

Emitted whenever the user picks a ramp from the dropdown. Not emitted for the "Edit Custom Ramp…" sentinel — for that case customRampSaved fires after the editor dialog returns.

rebuildItems()

void ColorRampComboBox::rebuildItems

(

)

Pre-populates the combo with built-ins. Custom user ramps loaded from PreferencesManager::customColorRamps() are appended below a separator.

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setCurrentRampByName()

void ColorRampComboBox::setCurrentRampByName

(

const QString &

name

)

Selects the first item whose ramp matches name (case-insensitive, matched against built-in display names and against user-ramp labels). No-op when no item matches.

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The documentation for this class was generated from the following files:

• /home/runner/work/openswmm.gui/openswmm.gui/include/ui/widgets/colorrampcombobox.h
• /home/runner/work/openswmm.gui/openswmm.gui/src/ui/widgets/colorrampcombobox.cpp