[1.15.1] Usage of the Checkbox widget

[badner]

Hi,

 

I am trying to use the Checkbox. The MC implementation of the checkbox doesnt have a feature to save the current state if the checkbox is clicked. Therefore I added the save feature by extending the Checkbox class. Here you can see the source code:

 

GuiCheckBox:

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public class GuiCheckBox extends CheckboxWidget {

	private final CheckBoxOption option;
	private final IConfig config;

	public GuiCheckBox(int x, int y, int width, int height, String message, CheckBoxOption option, IConfig config) {
		super(x, y, width, height, message, option.isChecked());
		this.option = option;
		this.config = config;
	}

	@Override
	public void onPress() {
		super.onPress();
		option.setChecked(super.isChecked());
		config.save();
	}
}

 

The CheckBoxOption is a field inside the config class to provide easy access to a setting.

 

CheckBoxOption:

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public class CheckBoxOption {

	@Getter
	@Setter
	private boolean checked = true;

	public CheckBoxOption() {
	}

	public CheckBoxOption(boolean checked) {
		this.checked = checked;
	}
}

 

 

The Config is a simple class to store settings.

IConfig:

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public interface IConfig {

	public String getFileName();

	public void save();
}

 

 

And the initialization of a GuiCheckbox:

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private final Config cfg;

...

GuiCheckBox showChunk = new GuiCheckBox(leftColumn, posY, 50, 20, I18n.translate("settings.chunk"), cfg.getShowChunk(), cfg);
addButton(showChunk);

 

 

There is no compile error, but if I open the Screen with the GuiCheckbox, the game is crashing and I get an error message which I do not understand:

 

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[21:55:31] [main/FATAL]: Unreported exception thrown!
java.lang.VerifyError: Bad type on operand stack
Exception Details:
  Location:
    de/d4n1el89/chunkinfo/GuiConfig.init()V @59: invokevirtual
  Reason:
    Type 'de/d4n1el89/modutils/gui/GuiCheckBox' (current frame, stack[1]) is not assignable to 'net/minecraft/client/gui/widget/AbstractButtonWidget'
  Current Frame:
    bci: @59
    flags: { }
    locals: { 'de/d4n1el89/chunkinfo/GuiConfig', integer, integer, integer, 'de/d4n1el89/modutils/gui/GuiCheckBox' }
    stack: { 'de/d4n1el89/chunkinfo/GuiConfig', 'de/d4n1el89/modutils/gui/GuiCheckBox' }
  Bytecode:
    0x0000000: .......

 

 

To fix the error I found a trivial solution, but its blowing up my code...

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CheckboxWidget showChunk = new CheckboxWidget(leftColumn, posY, 50, 20, I18n.translate("settings.chunk"),
				cfg.getShowChunk().isChecked()) {
	@Override
	public void onPress() {
		super.onPress();
		cfg.getShowChunk().setChecked(super.isChecked());
		cfg.save();
	}
};
addButton(showChunk);

 

Hence I want a better solution or fix the error above. Any ideas?

 

 

Edited January 1, 2020 by badner