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Java Source | 1996-08-14 | 4.4 KB | 114 lines |
- //****************************************************************************
- // ---- version information ----
- //
- // StatusPanel.java v 1.00 b1
- // Written by: I. van Rienen / E-mail ivr@bart.nl
- // URL: http://www/bart.nl/~ivr
- // Initial release:
- // Released in public domain:
- //
- // ---- Description ----
- // Java class containing methods for creating and maintaining a
- // Status panel.
- //
- // This program and the Java source is in the public domain.
- // Permission to use, copy, modify, and distribute this software
- // and its documentation for NON-COMMERCIAL purposes and
- // without fee is hereby granted.
- //
- // Copyright 1996
- //
- // Iwan van Rienen
- // Joan Maetsuyckerstr. 145
- // 2593 ZG The Hague
- // The Netherlands
- //
- // I am not responsible for any bugs in this program and
- // possible damage to hard- or software when using this program.
- //****************************************************************************
- import java.applet.Applet;
- import java.awt.*;
- import java.util.Vector;
-
- class StatusPanel extends Panel {
- DigSim applet;
- public static final int STATUSPANEL_HEIGHT = 20;
- protected Font StatusFont;
- protected FontMetrics StatusFontMetrics;
- protected static final Color BackGroundColor = Color.green;
- protected static final Color TextColor = Color.black;
- protected String ActMessage = "Please wait";
- protected static final int STATUSLEDS_WIDTH = 20;
- boolean SimulationInitializeInProgress = false;
- boolean SimulationRunning = false;
- boolean StatusLedOn = false;
-
- //----------------------------------------------------------------------------
- // The constructor of the status panel
- //----------------------------------------------------------------------------
- public StatusPanel(DigSim app) {
- applet = app;
- setLayout( new BorderLayout());
- StatusFont = new Font("TimesRoman",Font.PLAIN,12);
- setFont(StatusFont);
- StatusFontMetrics = getFontMetrics(StatusFont);
- repaint();
- }
-
- //----------------------------------------------------------------------------
- // Check if the simulation is running
- //----------------------------------------------------------------------------
- public boolean SimulateRunning() {
- return (SimulationRunning | SimulationInitializeInProgress);
- }
-
- //----------------------------------------------------------------------------
- // Calculate the preferred size of this panel
- //----------------------------------------------------------------------------
- public Dimension preferredSize() {
- // System.out.println ("StatusPanel preferredSize()");
- int w = applet.size().width;
- int h = STATUSPANEL_HEIGHT;
- return new Dimension(w, h);
- }
-
- //----------------------------------------------------------------------------
- // Draw the status LED
- //----------------------------------------------------------------------------
- public void DrawStatusLED(Graphics g) {
- StatusLedOn = !StatusLedOn;
- int LedX = size().width - STATUSLEDS_WIDTH;
- if (SimulationRunning && StatusLedOn) {
- g.setColor (Color.green);
- } else if (SimulationInitializeInProgress && StatusLedOn) {
- g.setColor (Color.red);
- } else {
- g.setColor (Color.gray);
- }
- g.fillOval (LedX + 3, 3, 15, 15);
- }
-
- //----------------------------------------------------------------------------
- // Draw the status panel
- //----------------------------------------------------------------------------
- public void paint(Graphics g) {
- g.setColor(BackGroundColor);
- g.fillRect(0, 0, size().width - STATUSLEDS_WIDTH, 20);
- g.setColor(TextColor);
- g.drawString(ActMessage, 2, StatusFontMetrics.getHeight() - 2);
- g.setColor(Color.black);
- g.fillRect (size().width - STATUSLEDS_WIDTH, 0, STATUSLEDS_WIDTH, 20);
- g.setColor(BackGroundColor);
- g.drawRect (size().width - STATUSLEDS_WIDTH, 0, STATUSLEDS_WIDTH, 20);
- DrawStatusLED(g);
- }
-
- //----------------------------------------------------------------------------
- // Display the message
- //----------------------------------------------------------------------------
- public void StatusMessage(String msg) {
- ActMessage = msg;
- repaint();
- }
-
- }