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 * and open the template in the editor.
 */
package org.pepsoft.worldpainter;

import java.awt.Window;
import java.util.Collection;
import javax.swing.DefaultListModel;
import javax.swing.JOptionPane;
import org.pepsoft.worldpainter.layers.CustomLayer;

/**
 *
 * @author Pepijn
 */
public class DeleteLayersDialog extends WorldPainterDialog {
    /**
     * Creates new form DeleteLayersDialog
     */
    public DeleteLayersDialog(Window parent, Collection<CustomLayer> layers) {
        super(parent);

        initComponents();
        layers.forEach(listModel::addElement);
        jList1.setModel(listModel);
        jList1.setSelectionInterval(0, listModel.getSize() - 1);
        jList1.setCellRenderer(new LayerListCellRenderer());
        jList1.getSelectionModel().addListSelectionListener(e -> setControlStates());
        setControlStates();

        setLocationRelativeTo(parent);
    }

    private void deleteSelectedLayers() {
        if (JOptionPane.showConfirmDialog(this, "Are you sure you want to delete " + jList1.getSelectedIndices().length + " layer(s)?", "Confirm Deletion", JOptionPane.YES_NO_OPTION) == JOptionPane.YES_OPTION) {
            App app = App.getInstance();
            jList1.getSelectedValuesList().forEach(app::deleteCustomLayer);
            app.validate();
            ok();
        }
    }
    
    private void setControlStates() {
        jButton2.setEnabled(jList1.getSelectedIndex() != -1);
    }
    
    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        jLabel1 = new javax.swing.JLabel();
        jScrollPane1 = new javax.swing.JScrollPane();
        jList1 = new javax.swing.JList<>();
        jButton1 = new javax.swing.JButton();
        jButton2 = new javax.swing.JButton();

        setDefaultCloseOperation(javax.swing.WindowConstants.DISPOSE_ON_CLOSE);
        setTitle("Delete Layers");

        jLabel1.setText("<html>The following layers will be deleted. Deselect<br>any layers which you do not want to be deleted:</html>");

        jScrollPane1.setViewportView(jList1);

        jButton1.setText("Cancel");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2.setText("Delete Selected Layers");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                        .addGap(0, 122, Short.MAX_VALUE))
                    .addComponent(jScrollPane1)
                    .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                        .addGap(0, 0, Short.MAX_VALUE)
                        .addComponent(jButton2)
                        .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jButton1)))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jLabel1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 212, Short.MAX_VALUE)
                .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton1)
                    .addComponent(jButton2))
                .addContainerGap())
        );

        pack();
    }// </editor-fold>//GEN-END:initComponents

    private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed
        cancel();
    }//GEN-LAST:event_jButton1ActionPerformed

    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed
        deleteSelectedLayers();
    }//GEN-LAST:event_jButton2ActionPerformed

    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JButton jButton1;
    private javax.swing.JButton jButton2;
    private javax.swing.JLabel jLabel1;
    private javax.swing.JList<CustomLayer> jList1;
    private javax.swing.JScrollPane jScrollPane1;
    // End of variables declaration//GEN-END:variables

    private final DefaultListModel<CustomLayer> listModel = new DefaultListModel<>();
}