design/designer-realize/src/main/java/com/fr/design/sort/expressionpane/CustomSequenceEditPane.java

package com.fr.design.sort.expressionpane;

import com.fine.swing.ui.layout.Column;
import com.fine.theme.utils.FineLayoutBuilder;
import com.fine.theme.utils.FineUIScale;
import com.fine.theme.utils.FineUIStyle;
import com.fr.design.border.FineBorderFactory;
import com.fr.design.dialog.BasicPane;
import com.fr.design.gui.icontainer.UIScrollPane;
import com.fr.design.gui.ilable.UILabel;
import com.fr.design.gui.ilist.UIList;
import com.fr.design.i18n.Toolkit;
import com.fr.design.mainframe.alphafine.listener.DocumentAdapter;
import com.fr.design.mainframe.dnd.SerializableTransferable;
import com.fr.design.mainframe.share.ui.base.PlaceholderTextArea;
import com.fr.locale.InterProviderFactory;
import com.fr.report.core.sort.sortexpression.CustomSequenceSortExpression;
import com.fr.stable.StringUtils;

import javax.swing.*;
import javax.swing.event.DocumentEvent;
import java.awt.*;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.dnd.DnDConstants;
import java.awt.dnd.DragGestureEvent;
import java.awt.dnd.DragGestureListener;
import java.awt.dnd.DragSource;
import java.awt.dnd.DragSourceAdapter;
import java.awt.dnd.DropTarget;
import java.awt.dnd.DropTargetAdapter;
import java.awt.dnd.DropTargetDropEvent;
import java.util.ArrayList;
import java.util.List;

import static com.fine.theme.utils.FineUIScale.scale;

public class CustomSequenceEditPane extends BasicPane {
    java.util.List<String> customSequence;
    JSplitPane jSplitPane;
    Column referenceSequencePanel;
    Column editSequencePanel;
    JTextArea jTextArea;

    CustomSequenceEditPane(java.util.List<String> customSequence) {
        this.customSequence = customSequence;
        initComponents();
    }

    void initComponents() {
        this.setLayout(new BorderLayout());
        initReferenceSequencePanel();
        initEditSequencePanel();
        initSplitPane();
    }

    void initSplitPane() {
        jSplitPane = new JSplitPane();
        this.add(jSplitPane);
        jSplitPane.setOneTouchExpandable(true);
        jSplitPane.setContinuousLayout(true);
        jSplitPane.setOrientation(JSplitPane.HORIZONTAL_SPLIT);
        jSplitPane.setLeftComponent(referenceSequencePanel);
        jSplitPane.setRightComponent(editSequencePanel);
        jSplitPane.setDividerSize(10);
        jSplitPane.setDividerLocation(200);
    }

    void initReferenceSequencePanel() {
        referenceSequencePanel = new Column();
        UILabel titleLabel = new UILabel(Toolkit.i18nText("Fine-Design_Sort_Reference_Sequence"));
        UIScrollPane uiScrollPane = new UIScrollPane(getReferenceSequenceList());
        uiScrollPane.setPreferredSize(scale(new Dimension(200, 320)));
        uiScrollPane.setBorder(FineBorderFactory.createWrappedRoundBorder());

        referenceSequencePanel.add(titleLabel);
        referenceSequencePanel.add(uiScrollPane);
        referenceSequencePanel.setSize(scale(new Dimension(200, 400)));
    }

    private UIList getReferenceSequenceList() {
        UIList uiList = new UIList(getReferenceSequenceModel());
        new CustomSequenceEditDragSource(uiList, DnDConstants.ACTION_MOVE);
        FineUIStyle.setStyle(uiList, FineUIStyle.PURE_LIST);
        return uiList;
    }

    private String[] getReferenceSequenceModel() {
        List<List<String>> customSequences = CustomSequenceSortExpression.getReferenceCustomSequences();
        String[] listModel = new String[customSequences.size()];
        for (int i = 0; i < customSequences.size(); i++) {
            listModel[i] = CustomSequenceSortExpression.customSequenceToString(customSequences.get(i), ",");
        }
        return listModel;
    }

    void initEditSequencePanel() {
        editSequencePanel = new Column();
        UILabel inputLabel = new UILabel(Toolkit.i18nText("Fine-Design_Sort_Input_Sequence"));
        UILabel hintLabel = new UILabel(Toolkit.i18nText("Fine-Design_Sort_Please_Interlace_Sequence_Elements"));
        FineUIStyle.setStyle(hintLabel, FineUIStyle.LABEL_TIP);

        JPanel titlePane = FineLayoutBuilder.createHorizontalLayout(5, inputLabel, hintLabel);
        jTextArea = getTextArea();
        UIScrollPane uiScrollPane = new UIScrollPane(jTextArea);
        uiScrollPane.setPreferredSize(scale(new Dimension(475, 320)));

        editSequencePanel.add(titlePane);
        editSequencePanel.add(uiScrollPane);
        editSequencePanel.setSize(scale(new Dimension(475, 320)));
    }


    JTextArea getTextArea() {
        PlaceholderTextArea placeholderTextArea = new PlaceholderTextArea(10, 10, getPlaceholderText());
        new CustomSequenceEditDropTarget(placeholderTextArea, CustomSequenceSortExpression.getReferenceCustomSequences());
        placeholderTextArea.setText(CustomSequenceSortExpression.customSequenceToString(customSequence, "\n"));
        placeholderTextArea.getDocument().addDocumentListener(new DocumentAdapter() {
            @Override
            protected void textChanged(DocumentEvent e) {
                placeholderTextArea.repaint();
            }
        });
        return placeholderTextArea;
    }

    String getPlaceholderText() {
        StringBuilder stringBuilder = new StringBuilder();
        stringBuilder.append(Toolkit.i18nText("Fine-Design_Sort_Please_Interlace_Sequence_Elements_Such_As") + "\n");
        stringBuilder.append(Toolkit.i18nText("Fine-Design_Sort_Department_One") + "\n");
        stringBuilder.append(Toolkit.i18nText("Fine-Design_Sort_Department_Two") + "\n");
        stringBuilder.append(Toolkit.i18nText("Fine-Design_Sort_Department_Three") + "\n");
        return stringBuilder.toString();
    }

    @Override
    protected String title4PopupWindow() {
        return InterProviderFactory.getProvider().getLocText("Fine-Engine_Sort_Custom_Sequence");
    }


    class CustomSequenceEditDragSource extends DragSourceAdapter implements DragGestureListener {
        private DragSource source;

        public CustomSequenceEditDragSource(UIList uiList, int actions) {
            source = new DragSource();
            source.createDefaultDragGestureRecognizer(uiList, actions, this);
        }

        public void dragGestureRecognized(DragGestureEvent dge) {
            Component comp = dge.getComponent();
            if (comp instanceof UIList) {
                UIList uiList = (UIList) comp;
                source.startDrag(dge, DragSource.DefaultLinkDrop, new SerializableTransferable(uiList.getSelectedIndex()), this);
            }
        }
    }


    class CustomSequenceEditDropTarget extends DropTargetAdapter {
        java.util.List<java.util.List<String>> customSequences = new ArrayList<>();

        public CustomSequenceEditDropTarget(PlaceholderTextArea jPanel, java.util.List<java.util.List<String>> customSequences) {
            new DropTarget(jPanel, this);
            this.customSequences = customSequences;
        }

        @Override
        public void drop(DropTargetDropEvent dtde) {
            try {
                Transferable transferable = dtde.getTransferable();
                DataFlavor[] dataFlavors = transferable.getTransferDataFlavors();
                if (dataFlavors.length == 1) {
                    Integer index = (Integer) transferable.getTransferData(dataFlavors[0]);
                    JTextArea jTextArea = (JTextArea) dtde.getDropTargetContext().getComponent();
                    String text = jTextArea.getText();
                    if (StringUtils.isNotEmpty(text) && !text.endsWith("\n")) {
                        text += "\n";
                    }
                    java.util.List<String> customSequence = customSequences.get(index);
                    for (int i = 0; i < customSequence.size(); i++) {
                        text += customSequence.get(i) + "\n";
                    }
                    jTextArea.setText(text);
                }
            } catch (Exception e) {

            }
        }
    }

    public List<String> updateBean() {
        return CustomSequenceSortExpression.stringToCustomSequence(jTextArea.getText(), "\n");
    }

}