package uk.co.wingpath.modbusgui; import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.util.*; import java.util.List; import uk.co.wingpath.event.*; import uk.co.wingpath.event.Event; import uk.co.wingpath.util.*; import uk.co.wingpath.modbus.*; import uk.co.wingpath.gui.*; public class BigValueSettingsPanel implements TreeCard { private final Registers registers; private final FileRegisters fileRegisters; private final Frontend frontend; private final BigValueSettings bigValueSettings; private final ValueEventSource statusListeners; private final WComponent endianCheckbox; private final WComponent wordRegCheckbox; private final WComponent wordCountCheckbox; private final JButton applyButton; private final JButton resetButton; private final JPanel outerPanel; private final StatusBar statusBar; public BigValueSettingsPanel (Frontend frontend, BigValueSettings bigValueSettings, final Registers registers, final FileRegisters fileRegisters) { Event.checkIsEventDispatchThread (); this.frontend = frontend; this.bigValueSettings = bigValueSettings; this.registers = registers; this.fileRegisters = fileRegisters; statusListeners = new ValueEventSource (); statusBar = new StatusBar ("bigvalue", frontend.getHelpViewer ()); statusBar.addStatusListener ( new ValueListener () { public void valueChanged (ValueEvent e) { fireStatusChanged (); } }); outerPanel = new JPanel (); outerPanel.setLayout (new BorderLayout ()); JLabel heading = Gui.createDialogHeading ("32/64-bit Values"); outerPanel.add (heading, BorderLayout.NORTH); outerPanel.add (statusBar, BorderLayout.SOUTH); JPanel mainPanel = new JPanel (); outerPanel.add (mainPanel, BorderLayout.CENTER); mainPanel.setLayout (new BorderLayout ()); ButtonPanel buttonPanel = new ButtonPanel (); mainPanel.add (buttonPanel, BorderLayout.SOUTH); ValueListener valueListener = new ValueListener () { public void valueChanged (ValueEvent e) { statusBar.clear ("bvf3"); setButtonsEnabled (hasUnappliedChanges ()); } }; GridBagPanel panel = new GridBagPanel (); mainPanel.add (panel, BorderLayout.CENTER); endianCheckbox = new WCheckBox ("Little-endian", false); endianCheckbox.setToolTipText ( "Whether least-significant word (16 bit)
" + "of 32 and 64 bit values is sent first"); endianCheckbox.setMnemonic (KeyEvent.VK_L); panel.addComponent (endianCheckbox); endianCheckbox.addValueListener (valueListener); wordRegCheckbox = new WCheckBox ("Word Registers", false); wordRegCheckbox.setToolTipText ( "Whether each 16-bit word of a value has its " + "own address (selected)
" + "or a single address is used for the " + "whole value (unselected)"); wordRegCheckbox.setMnemonic (KeyEvent.VK_W); panel.addComponent (wordRegCheckbox); wordRegCheckbox.addValueListener (valueListener); wordCountCheckbox = new WCheckBox ("Word Count", false); wordCountCheckbox.setToolTipText ( "Whether count in packet is number of 16-bit " + "words (selected)
" + "or values (unselected)"); wordCountCheckbox.setMnemonic (KeyEvent.VK_C); panel.addComponent (wordCountCheckbox); wordCountCheckbox.addValueListener (valueListener); applyButton = buttonPanel.addButton ("Apply", null, new ActionListener () { public void actionPerformed (ActionEvent e) { try { statusBar.clear ("bvf4"); BigValueFlags bvf = buildBigValueFlags (); if (registers != null) registers.checkBigValueFlags (bvf); if (fileRegisters != null) fileRegisters.checkRegisters (bvf); putValuesToModel (); } catch (ValueException ex) { statusBar.showException (ex); } } }); resetButton = buttonPanel.addButton ("Reset", null, new ActionListener () { public void actionPerformed (ActionEvent e) { reset (); } }); resetButton.setMnemonic (KeyEvent.VK_R); buttonPanel.addButton (getHelpAction ()); frontend.addBackendStateListener (new BackendState.Listener () { public void stateChanged (BackendState state) { boolean en = state.isStopped; endianCheckbox.setEnabled (en); wordRegCheckbox.setEnabled (en); wordCountCheckbox.setEnabled (en); setButtonsEnabled (en && hasUnappliedChanges ()); } }); // If settings get loaded from file, update the display. bigValueSettings.addValueListener (new ValueListener () { public void valueChanged (ValueEvent e) { getValuesFromModel (); } }); if (registers != null) registers.addValueListener (statusBar.getClearListener ("bvf1")); if (fileRegisters != null) fileRegisters.addValueListener (statusBar.getClearListener ("bvf5")); getValuesFromModel (); } public JPanel getPanel () { return outerPanel; } public String getTag () { return "big_values"; } public String getName () { return "32/64-bit Values"; } public Action getHelpAction () { return frontend.getHelpAction ("big_values"); } public JButton getDefaultButton () { return applyButton; } public String getToolTipText () { return null; } @Override public void selected () { } @Override public void reset () { getValuesFromModel (); } public boolean hasUnappliedChanges () { boolean changed = false; BigValueFlags flags = bigValueSettings.getValue (); if (endianCheckbox.hasValueChanged (flags.getLittleEndian ())) changed = true; if (wordRegCheckbox.hasValueChanged (flags.getWordRegisters ())) changed = true; if (wordCountCheckbox.hasValueChanged (flags.getWordCount ())) changed = true; return changed; } public boolean hasError () { return statusBar.hasError (); } private void setButtonsEnabled (boolean enabled) { Gui.setEnabled (applyButton, enabled); Gui.setEnabled (resetButton, enabled); fireStatusChanged (); } private void getValuesFromModel () { statusBar.clear ("bvf2"); BigValueFlags flags = bigValueSettings.getValue (); endianCheckbox.setValue (flags.getLittleEndian ()); wordRegCheckbox.setValue (flags.getWordRegisters ()); wordCountCheckbox.setValue (flags.getWordCount ()); setButtonsEnabled (false); } private void putValuesToModel () { bigValueSettings.setValue (buildBigValueFlags ()); setButtonsEnabled (false); } private BigValueFlags buildBigValueFlags () { return new BigValueFlags ( endianCheckbox.getValue (), wordRegCheckbox.getValue (), wordCountCheckbox.getValue ()); } private void fireStatusChanged () { statusListeners.fireValueChanged (this); } public void addStatusListener (ValueListener l) { statusListeners.addListener (l); } public void removeStatusListener (ValueListener l) { statusListeners.removeListener (l); } }