Git - Openforge

/*

Stream-Pi - Free & Open-Source Modular Cross-Platform Programmable Macro Pad

This program is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 3 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the

GNU General Public License for more details.

Originally Written by : Debayan Sutradhar (rnayabed)

*/

package com.stream_pi.util.combobox;

import java.util.ArrayList;

import java.util.List;

import com.stream_pi.util.uihelper.SpaceFiller;

import org.kordamp.ikonli.javafx.FontIcon;

import javafx.application.Platform;

import javafx.collections.ListChangeListener;

import javafx.scene.Node;

import javafx.scene.control.Label;

import javafx.scene.control.ScrollPane;

import javafx.scene.control.ToggleButton;

import javafx.scene.control.ScrollPane.ScrollBarPolicy;

import javafx.scene.layout.HBox;

import javafx.scene.layout.StackPane;

import javafx.scene.layout.VBox;

/**

* Custom Combo Box for Server and Client

* @param <T> Combo Box List Type

*/

public class StreamPiComboBox<T> extends HBox

{

private List<T> options;

private static StackPane stackPaneParent;

/**

* Sets the parent where the Combo Box will be shown

* @param parent StackPane where the Combo Box dialog will be shown

*/

public static void setParent(StackPane parent) {

stackPaneParent = parent;

stackPaneParent.getStyleClass().add("combo_box_pane_parent");

stackPaneParent.getChildren().addListener((ListChangeListener<Node>) c ->

{

if(stackPaneParent.getChildren().size() > 0)

{

stackPaneParent.setVisible(true);

stackPaneParent.toFront();

}

else

{

stackPaneParent.setVisible(false);

stackPaneParent.toBack();

}

});

}

/**

* Constructor to create Combo Box with all the options

* @param options List of Options

*/

public StreamPiComboBox(List<T> options)

{

setup();

setOptions(options);

}

/**

* @return List of Combo Box Options

*/

public List<T> getOptions()

{

return options;

}

/**

* Constructor to create Combo Box with empty list

*/

public StreamPiComboBox()

{

setup();

}

private Label currentSelectedLabel;

/**

* init of Combo Box

*/

private void setup()

{

buttons = new ArrayList<>();

getStyleClass().add("combo_box");

setOnMouseClicked(event->show());

currentSelectedLabel = new Label();

currentSelectedLabel.getStyleClass().add("combo_box_current_selected_label");

FontIcon fontIcon = new FontIcon();

fontIcon.getStyleClass().add("combo_box_drop_down_icon");

getChildren().addAll(

currentSelectedLabel,

new SpaceFiller(SpaceFiller.FillerType.HBox),

fontIcon

);

}

/**

* Set Combo Box options

* @param options Combo Box Options

*/

public void setOptions(List<T> options)

{

this.options = options;

setCurrentSelectedItemIndex(0);

}

private int currentIndex = 0;

private List<ToggleButton> buttons;

/**

* @return Final Scroll Pane

*/

public ScrollPane getPopupScrollPane()

{

buttons.clear();

ScrollPane scrollPane = new ScrollPane();

scrollPane.setHbarPolicy(ScrollBarPolicy.NEVER);

scrollPane.setVbarPolicy(ScrollBarPolicy.AS_NEEDED);

scrollPane.getStyleClass().add("combo_box_popup");

VBox vBox = new VBox();

vBox.getStyleClass().add("combo_box_popup_vbox");

vBox.prefWidthProperty().bind(scrollPane.widthProperty().subtract(10));

scrollPane.maxHeightProperty().bind(vBox.heightProperty().add(20));

scrollPane.setContent(vBox);

//scrollPane.setMaxHeight(Double.NEGATIVE_INFINITY);

for(int i = 0;i<options.size();i++)

{

T eachOptionObj = options.get(i);

String displayText = streamPiComboBoxFactory.getOptionDisplayText(eachOptionObj);

ToggleButton optionButton = new ToggleButton(displayText);

optionButton.getStyleClass().add("combo_box_list_option_button");

optionButton.setSelected(i == currentIndex);

optionButton.setUserData(i);

optionButton.setOnAction(event->

{

setCurrentSelectedItemIndex((int) optionButton.getUserData());

if(streamPiComboBoxListener != null)

streamPiComboBoxListener.onNewItemSelected(options.get(currentIndex));

destroy();

});

vBox.getChildren().addAll(optionButton);

buttons.add(optionButton);

}

return scrollPane;

}

/**

* @return Current Selected Option Index

*/

public int getCurrentIndex()

{

return currentIndex;

}

/**

* @return Current Selected Item

*/

public T getCurrentSelectedItem()

{

return options.get(currentIndex);

}

/**

* @param index Current item index to be selected

*/

public void setCurrentSelectedItemIndex(int index)

{

this.currentIndex = index;

setCurrentSelectedLabelText(streamPiComboBoxFactory.getOptionDisplayText(options.get(index)));

}

/**

* @param text Name of the option

*/

private void setCurrentSelectedLabelText(String text)

{

currentSelectedLabel.setText(text);

}

private StreamPiComboBoxListener<T> streamPiComboBoxListener = null;

/**

* Set on click Listener

* @param streamPiComboBoxListener Combo Box Listener, triggered when an option is clicked

*/

public void setStreamPiComboBoxListener(StreamPiComboBoxListener<T> streamPiComboBoxListener)

{

this.streamPiComboBoxListener = streamPiComboBoxListener;

}

private Node popupNode;

/**

* Adds the Combo Box to the parent node

*/

public void show()

{

Platform.runLater(()->{

popupNode = getPopupScrollPane();

stackPaneParent.getChildren().add(popupNode);

});

}

/**

* Removes the combo box from the parent pane

*/

public void destroy()

{

Platform.runLater(()->{

stackPaneParent.getChildren().remove(popupNode);

});

}

private StreamPiComboBoxFactory<T> streamPiComboBoxFactory;

/**

* @param streamPiComboBoxFactory Factory for the Combo Box

*/

public void setStreamPiComboBoxFactory(StreamPiComboBoxFactory<T> streamPiComboBoxFactory)

{

this.streamPiComboBoxFactory = streamPiComboBoxFactory;

}

util

Clone or download

fix combo box eating up UI space

Modified Files