Package com.install4j.api.laf

Interface LookAndFeelHandler

All Superinterfaces:

LookAndFeelEnhancer

public interface LookAndFeelHandler
extends LookAndFeelEnhancer

A look and feel handler can apply a look and feel. An implementation of this class together with its dependencies can be added on the "Installer->Custom Code & Resources" step and can then be configured on the "Installer->Look & Feel" step.

The super-interface LookAndFeelEnhancer contains a number of methods with default implementations that can be overridden in order to customize certain aspects of creating the UI.

Field Summary

Fields inherited from interface com.install4j.api.laf.LookAndFeelEnhancer

DEFAULT_LIGHT_TITLE_COLOR

Method Summary

Modifier and Type	Method	Description
void	applyLookAndFeel(boolean darkDesktop)	Called when the installer application is ready to apply the look and feel.
default void	setDark(boolean dark)	Switch between dark and light mode.

Methods inherited from interface com.install4j.api.laf.LookAndFeelEnhancer

createTriStateCheckBox, disableExtraSelectionPainting, getAlertFont, getFileChooserLowerAccessoryInset, getTitleColor, isDark, isDarkModeSwitchingSupported, isPreventTransparency, isWideTreeSelection, prepareWindow

Method Details

applyLookAndFeel

void applyLookAndFeel(boolean darkDesktop)
               throws Exception

Called when the installer application is ready to apply the look and feel.

Parameters:

darkDesktop - if the desktop is detected to be in dark mode. This auto-detection is implemented for Windows 10 and macOS.

Throws:

Exception

setDark

default void setDark(boolean dark)

Switch between dark and light mode. This method will be called when user code invokes UiUtil.setDarkUi(boolean), that method will also update the component hierarchy in all windows.

By default, this method throws an UnsupportedOperationException. If it is implemented, LookAndFeelEnhancer.isDarkModeSwitchingSupported() must be overridden to return true.

Parameters:

dark - true for dark mode

See Also:

• UiUtil.setDarkUi(boolean)