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Java Source | 1996-08-14 | 20.6 KB | 498 lines |
- //****************************************************************************
- // ---- version information ----
- //
- // AnalyzerPanel.java v 1.00b2
- // Written by: I. van Rienen / E-mail ivr@bart.nl
- // URL: http://www/bart.nl/~ivr
- // Initial release: v 1.00b2 06-03-1996
- // Released in public domain: v 1.00b2 06-03-1996
- //
- // ---- Description ----
- // Java class containing methods for the the logic analyzer.
- //
- // 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.awt.*;
- import java.util.Vector;
-
- class AnalyzerPanel extends Panel {
- static final int CHANNEL_HEIGHT = 50;
- static final int DISPLAY_OFFSET = 5;
- static final int CLOCK_WIDTH = 10;
- static final int LINE_OFFSET = 5;
- static final int BUTTON_X_OFFSET = 5;
- static final int BUTTON_Y_OFFSET = 22;
- static final int BUTTON_CLOCK_NONE = 48;
- static final int BUTTON_CLOCK_NONE_PRESSED = 24;
- static final int BUTTON_CLOCK_UP_PRESSED = 72;
- static final int BUTTON_CLOCK_UP_SELECTED = 96;
- static final int BUTTON_CLOCK_DN_PRESSED = 120;
- static final int BUTTON_CLOCK_DN_SELECTED = 144;
- static final Color TextColor = Color.black;
- static final Color BackGroundColor = Color.black;
- protected Scrollbar myVertical;
- DigSim applet;
- Image OffScreenImage = null;
- Image ImageBuffer = null;
- Image CopyImage = null;
- Graphics cig;
- int ButtonOffset = 0;
- Graphics og;
- Dimension ImageSize;
- protected Font AnalyzerFont;
- protected FontMetrics AnalyzerFontMetrics;
- Vector probes = null;
- boolean ImageButtonsDisabled = false;
- Probe PressedProbe = null;
- Probe DragProbe = null;
- int CurrentCol = 0;
- boolean ImageUpdated = false;
- Frame frame;
-
- //----------------------------------------------------------------------------
- // The constructor of the Logic Analyzer Panel
- //----------------------------------------------------------------------------
- public AnalyzerPanel(DigSim app, Frame f) {
- applet = app;
- frame = f;
-
- setLayout( new BorderLayout());
- AnalyzerFont = new Font("TimesRoman",Font.PLAIN, 14);
- AnalyzerFontMetrics = getFontMetrics(AnalyzerFont);
-
- super.setLayout( new BorderLayout());
-
- LoadButtonsImage();
- myVertical = new Scrollbar(Scrollbar.VERTICAL);
- add( "East", myVertical);
-
- ImageSize = new Dimension (400, 250);
- CheckOffScreenImage();
- repaint();
- }
-
- //----------------------------------------------------------------------------
- // Adjust scrollbar to current display settings
- //----------------------------------------------------------------------------
- public void AdjustScrollbar() {
- String OSName;
- if (probes == null) return;
- int ttl_height = CHANNEL_HEIGHT * probes.size();
- int vis_height = size().height;
- int max_offs = ttl_height - vis_height;
- if (max_offs < 0) max_offs = 0;
- // Determine OS because of scrollbar implementation differences
- // between Win95/NT and other operating systems.
- OSName = System.getProperty("os.name");
- if (OSName.equals ("Windows 95") ||
- OSName.equals ("Windows NT")) {
- myVertical.setValues (myVertical.getValue(), vis_height, 0, max_offs + vis_height);
- } else {
- myVertical.setValues (myVertical.getValue(), vis_height, 0, max_offs);
- }
- }
-
- //----------------------------------------------------------------------------
- // Check if there is an off-screen image, and check its size
- //----------------------------------------------------------------------------
- public void CheckOffScreenImage() {
- if (OffScreenImage == null) {
- PrepareOffScreenImage();
- return;
- }
- if (size().width > ImageSize.width ||
- size().height > ImageSize.height) {
- ImageSize.width = size().width;
- ImageSize.height = size().height;
- PrepareOffScreenImage();
- }
- }
-
- //----------------------------------------------------------------------------
- // Create an off-screen image
- //----------------------------------------------------------------------------
- public void PrepareOffScreenImage() {
- OffScreenImage = applet.createImage (ImageSize.width, ImageSize.height);
- og = OffScreenImage.getGraphics();
- og.setFont(AnalyzerFont);
-
- repaint();
- }
-
- //----------------------------------------------------------------------------
- // select an ImageButton
- //----------------------------------------------------------------------------
- public void SelectButton(int ButtonType) {
- cig.copyArea (0, ButtonType, 24, 24, 0, -ButtonType);
- }
-
- //----------------------------------------------------------------------------
- // There is a button pressed
- //----------------------------------------------------------------------------
- public void ButtonPressed (int b) {
- Probe ActProbe = (Probe)probes.elementAt (b);
- PressedProbe = ActProbe;
- if (ActProbe.clockup_probe) {
- ActProbe.clockup_probe = false;
- ActProbe.clockdn_probe = true;
- } else if (ActProbe.clockdn_probe) {
- ActProbe.clockup_probe = false;
- ActProbe.clockdn_probe = false;
- } else {
- ActProbe.clockup_probe = true;
- ActProbe.clockdn_probe = false;
- }
- for (int ix = 0; ix < probes.size(); ix++) {
- if (b != ix) {
- ActProbe = (Probe) probes.elementAt (ix);
- ActProbe.clockup_probe = false;
- ActProbe.clockdn_probe = false;
- }
- }
- repaint();
- }
-
- //----------------------------------------------------------------------------
- // User clicked a mousebutton
- //----------------------------------------------------------------------------
- public boolean mouseDown(Event event, int x, int y) {
- Probe ActProbe;
- int ix, yo;
- PressedProbe = null;
- DragProbe = null;
-
- for (ix = 0; ix < probes.size(); ix++) {
- yo = ix * CHANNEL_HEIGHT + BUTTON_Y_OFFSET - myVertical.getValue();
- if ( x >= BUTTON_X_OFFSET && x <= BUTTON_X_OFFSET + 24 &&
- y >= yo && y <= yo + 24) {
- ButtonPressed(ix);
- }
- }
- for (ix = 0; ix < probes.size(); ix++) {
- ActProbe = (Probe)probes.elementAt (ix);
- if ( x >= ActProbe.ChannelPos.x && y >= ActProbe.ChannelPos.y &&
- x <= ActProbe.ChannelPos.x + ActProbe.ChannelDim.width &&
- y <= ActProbe.ChannelPos.y + ActProbe.ChannelDim.height) {
- DragProbe = ActProbe;
- repaint();
- return true;
- }
- }
-
- return true;
- }
-
- //----------------------------------------------------------------------------
- // The user releases the mouse button
- //----------------------------------------------------------------------------
- public boolean mouseUp(Event event, int x, int y) {
- if (DragProbe != null) {
- DragProbe = null;
- repaint();
- }
- if (PressedProbe != null) {
- PressedProbe = null;
- repaint();
- }
- return true;
- }
-
- //----------------------------------------------------------------------------
- // The user moves the mouse
- //----------------------------------------------------------------------------
- public boolean mouseDrag(Event evt, int x, int y) {
- Probe ActProbe;
- int dpix, ix;
-
- if (DragProbe != null) {
- for (ix = 0; ix < probes.size(); ix++) {
- ActProbe = (Probe)probes.elementAt (ix);
- if ( x >= ActProbe.ChannelPos.x && y >= ActProbe.ChannelPos.y &&
- x <= ActProbe.ChannelPos.x + ActProbe.ChannelDim.width &&
- y <= ActProbe.ChannelPos.y + ActProbe.ChannelDim.height) {
- if (ActProbe != DragProbe) {
- // System.out.println ("Swap probes");
- // Swap ActProbe and DragProbe.
- applet.MySchematic.SwapComponents (ActProbe, DragProbe);
- repaint();
- return true;
- }
- }
- }
- }
- return true;
- }
-
- //----------------------------------------------------------------------------
- // Draw the history levels of Probe ActProbe
- //----------------------------------------------------------------------------
- public void DrawProbeHistory (Graphics g, Probe ActProbe) {
- g.setColor (Color.green);
-
- for (int ix = 0; ix < ActProbe.MAX_HISTORY; ix++) {
- if (ix > 0 && ActProbe.LevelHistory[ix - 1] != ActProbe.LevelHistory[ix]) {
- og.drawLine (ActProbe.ChannelPos.x + ix * CLOCK_WIDTH, ActProbe.ChannelPos.y + LINE_OFFSET,
- ActProbe.ChannelPos.x + ix * CLOCK_WIDTH, ActProbe.ChannelPos.y + ActProbe.ChannelDim.height - LINE_OFFSET);
- }
- if (ActProbe.LevelHistory[ix] == 5) {
- g.setColor (Color.green);
- g.drawLine (ActProbe.ChannelPos.x + ix * CLOCK_WIDTH, ActProbe.ChannelPos.y + LINE_OFFSET,
- ActProbe.ChannelPos.x + (ix + 1 ) * CLOCK_WIDTH, ActProbe.ChannelPos.y + LINE_OFFSET);
- } else {
- g.setColor (Color.green);
- g.drawLine (ActProbe.ChannelPos.x + ix * CLOCK_WIDTH, ActProbe.ChannelPos.y + ActProbe.ChannelDim.height - LINE_OFFSET,
- ActProbe.ChannelPos.x + (ix + 1) * CLOCK_WIDTH, ActProbe.ChannelPos.y + ActProbe.ChannelDim.height - LINE_OFFSET);
- }
- }
- }
-
- //----------------------------------------------------------------------------
- // There are no probes available, display a message
- //----------------------------------------------------------------------------
- public void DrawNoProbes(Graphics g) {
- String message = "There are no probes to display.";
- int StringWidth = AnalyzerFontMetrics.stringWidth(message);
- int x = (size().width - StringWidth) / 2;
- g.setColor (Color.black);
- g.drawString (message, x, size().height / 2);
- }
-
- //----------------------------------------------------------------------------
- // Draw the empty probes
- //----------------------------------------------------------------------------
- public void DrawEmptyProbes(Graphics g) {
- probes = applet.MySchematic.getProbes();
- Probe ActProbe;
- int x, yo, w;
- int MaxTextWidth = 30;
- int SliderVal = myVertical.getValue();
-
- g.setColor (Color.lightGray);
- g.fillRect (0, 0, ImageSize.width, ImageSize.height);
-
- if (probes.size() == 0) {
- DrawNoProbes(g);
- return;
- }
- // determine Max. text size
- for (int ix = 0; ix < probes.size(); ix++) {
- ActProbe = (Probe) probes.elementAt (ix);
- w = AnalyzerFontMetrics.stringWidth(ActProbe.IPin[0].getName());
- if (w > MaxTextWidth) MaxTextWidth = w;
- }
-
- for (int ix = 0; ix < probes.size(); ix++) {
- ActProbe = (Probe) probes.elementAt (ix);
- yo = ix * CHANNEL_HEIGHT - SliderVal;
- g.setColor (TextColor);
- g.drawString (ActProbe.IPin[0].getName(), 5, yo + 16);
-
- g.setColor (Color.gray);
- g.drawLine (0, yo + CHANNEL_HEIGHT - 2, size().width, yo + CHANNEL_HEIGHT - 2);
- g.setColor (Color.white);
- g.drawLine (0, yo + CHANNEL_HEIGHT - 1, size().width, yo + CHANNEL_HEIGHT - 1);
- ActProbe.ChannelPos.x = DISPLAY_OFFSET + MaxTextWidth + 5;
- ActProbe.ChannelPos.y = DISPLAY_OFFSET + yo;
- ActProbe.ChannelDim.width = size().width - ((DISPLAY_OFFSET) + MaxTextWidth + 20);
- ActProbe.ChannelDim.height = CHANNEL_HEIGHT - 2 * DISPLAY_OFFSET;
- g.setColor (BackGroundColor);
- g.fillRect (ActProbe.ChannelPos.x, ActProbe.ChannelPos.y + 1, ActProbe.ChannelDim.width, ActProbe.ChannelDim.height - 1);
- if (ActProbe.clockup_probe) {
- if (ActProbe == PressedProbe) {
- SelectButton (BUTTON_CLOCK_UP_PRESSED);
- } else {
- SelectButton (BUTTON_CLOCK_UP_SELECTED);
- }
- } else if (ActProbe.clockdn_probe) {
- if (ActProbe == PressedProbe) {
- SelectButton (BUTTON_CLOCK_DN_PRESSED);
- } else {
- SelectButton (BUTTON_CLOCK_DN_SELECTED);
- }
-
- } else {
- if (ActProbe == PressedProbe) {
- SelectButton (BUTTON_CLOCK_NONE_PRESSED);
- } else {
- SelectButton (BUTTON_CLOCK_NONE);
- }
- }
- DrawProbeHistory (g, ActProbe);
- Graphics ibg = ImageBuffer.getGraphics();
- ibg.drawImage (CopyImage, 0, 0, this);
- g.drawImage(ImageBuffer, BUTTON_X_OFFSET, BUTTON_Y_OFFSET + yo, this);
- }
-
- if (DragProbe != null) {
- g.setColor (Color.red);
- g.drawRect (DragProbe.ChannelPos.x, DragProbe.ChannelPos.y, DragProbe.ChannelDim.width, DragProbe.ChannelDim.height);
- }
- }
-
- //----------------------------------------------------------------------------
- // Copy the off-screen image to the screen
- //----------------------------------------------------------------------------
- public synchronized void paint (Graphics g) {
- if (OffScreenImage == null) return;
- AdjustScrollbar();
- if (probes != null && size().height >= CHANNEL_HEIGHT * probes.size()) {
- update (g);
- return;
- }
- if (!ImageUpdated) {
- // System.out.println ("update()");
- update(g);
- return;
- }
- g.drawImage (OffScreenImage, 0, 0, this);
- }
-
- //----------------------------------------------------------------------------
- // Prepare the off-screen image and copy it to the screen.
- //----------------------------------------------------------------------------
- public synchronized void update (Graphics g) {
- AdjustScrollbar();
- CheckOffScreenImage();
- if (OffScreenImage == null) return;
- DrawEmptyProbes (og);
- g.drawImage (OffScreenImage, 0, 0, this);
- ImageUpdated = true;
- }
-
- //----------------------------------------------------------------------------
- // Handle the events of the analyzer
- //----------------------------------------------------------------------------
- public boolean handleEvent(Event ev) {
- if (ev.target instanceof Scrollbar) {
- repaint();
- return true;
- }
- return super.handleEvent(ev);
- }
-
- //----------------------------------------------------------------------------
- // Handle the actions of the analyzer
- //----------------------------------------------------------------------------
- public boolean action(Event ev, Object arg) {
- if (ev.target instanceof Button) {
- }
- return false;
- }
-
- //----------------------------------------------------------------------------
- // Update the new levels of Probe ActProbe
- //----------------------------------------------------------------------------
- public void update(Probe ActProbe) {
- int x = CurrentCol * CLOCK_WIDTH;
- if ( x >= ActProbe.ChannelDim.width) {
- if (ActProbe.clockup_probe &&
- ActProbe.OldLevel == 0 && ActProbe.IPin[0].getLevel() == 5) {
- CurrentCol = 0; // Clock trigger
- } else if (ActProbe.clockdn_probe &&
- ActProbe.OldLevel == 5 && ActProbe.IPin[0].getLevel() == 0) {
- CurrentCol = 0; // Clock trigger
- }
- }
- }
-
- //----------------------------------------------------------------------------
- // Draw a new Level.
- //----------------------------------------------------------------------------
- public void drawLevel (Probe ActProbe) {
- int x = CurrentCol * CLOCK_WIDTH;
- if ( x >= ActProbe.ChannelDim.width) return;
- if (CurrentCol == 0) {
- og.setColor (BackGroundColor);
- og.fillRect (ActProbe.ChannelPos.x + x, ActProbe.ChannelPos.y + 1,
- CLOCK_WIDTH + 1, ActProbe.ChannelDim.height - 1);
- }
- og.setColor (BackGroundColor);
- og.fillRect (ActProbe.ChannelPos.x + x + 1, ActProbe.ChannelPos.y + 1,
- CLOCK_WIDTH, ActProbe.ChannelDim.height - 1);
-
- if (CurrentCol > 0 && ActProbe.IPin[0].getLevel() != ActProbe.OldLevel) {
- og.setColor (Color.green);
- og.drawLine (ActProbe.ChannelPos.x + x, ActProbe.ChannelPos.y + LINE_OFFSET,
- ActProbe.ChannelPos.x + x, ActProbe.ChannelPos.y + ActProbe.ChannelDim.height - LINE_OFFSET);
- }
- if (CurrentCol < ActProbe.MAX_HISTORY) {
- ActProbe.LevelHistory[CurrentCol] = ActProbe.IPin[0].getLevel();
- }
- if (ActProbe.IPin[0].getLevel() == 5) {
- og.setColor (Color.green);
- og.drawLine (ActProbe.ChannelPos.x + x, ActProbe.ChannelPos.y + LINE_OFFSET,
- ActProbe.ChannelPos.x + x + CLOCK_WIDTH, ActProbe.ChannelPos.y + LINE_OFFSET);
- } else {
- og.setColor (Color.green);
- og.drawLine (ActProbe.ChannelPos.x + x, ActProbe.ChannelPos.y + ActProbe.ChannelDim.height - LINE_OFFSET,
- ActProbe.ChannelPos.x + x + CLOCK_WIDTH, ActProbe.ChannelPos.y + ActProbe.ChannelDim.height - LINE_OFFSET);
- }
-
- paint (getGraphics());
- }
-
- //----------------------------------------------------------------------------
- // Update the new levels of all probes
- //----------------------------------------------------------------------------
- public void update() {
- Probe ActProbe;
- int ix;
-
- if (probes == null) return;
- for (ix = 0; ix < probes.size(); ix++) {
- ActProbe = (Probe) probes.elementAt (ix);
- update (ActProbe);
- }
- for (ix = 0; ix < probes.size(); ix++) {
- ActProbe = (Probe) probes.elementAt (ix);
- drawLevel (ActProbe);
- ActProbe.OldLevel = ActProbe.IPin[0].getLevel();
- }
- paint(getGraphics());
- CurrentCol++;
- }
-
- //----------------------------------------------------------------------------
- // Load the image with the buttons
- //----------------------------------------------------------------------------
- public void LoadButtonsImage() {
- Image ButtonsImage;
- MediaTracker tracker = new MediaTracker(this);
- ButtonsImage = applet.getImage(applet.getDocumentBase(), "images/all_analyzer.gif");
- tracker.addImage(ButtonsImage, 0);
-
- try {
- Thread.currentThread().setPriority(Thread.MIN_PRIORITY);
- tracker.waitForAll();
- } catch(Exception e) {
- String message = e.toString();
- String DlgButtons[] = { "OK" };
- SimpleDialog ExceptionDialog = new SimpleDialog(null, "Reading imagebuttons", message, DlgButtons, 1, 0, 0, SimpleDialog.IMAGE_STOP);
- return;
- }
- if (tracker.isErrorAny()) {
- ImageButtonsDisabled = true;
- String message = "Can't read images/all_analyzer.gif ImageButtons will be disabled";
- String DlgButtons[] = { "OK" };
- SimpleDialog ErrorDialog = new SimpleDialog(null, "Error while reading imagebuttons", message, DlgButtons, 1, 0, 0, SimpleDialog.IMAGE_STOP);
- return;
- }
- ImageBuffer = applet.createImage (ButtonsImage.getWidth(this), 24);
- CopyImage = applet.createImage (ButtonsImage.getWidth(this), ButtonsImage.getHeight(this));
- cig = CopyImage.getGraphics();
- cig.drawImage (ButtonsImage, 0, 0, this);
- }
- }