// Author: Matt Oefinger - Oefinger Enterprises, Inc.: www.oefingerenterprises.com // - Kairos Companies, LLC: www.kairoscompanies.com // COPYRIGHT NOTICE: This software is Copyright of Massachusetts Institute of Technology // and licensed exclusively to Oefinger Enterprises, Inc. // ********* All rights reserved. ************** import java.net.*; import java.io.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.event.*; import java.util.*; import java.lang.Object.*; ////////////////////////////////////////////////////////////////////////////////////////// // CUSTOMCANVAS CUSTOMCANVAS CUSTOMCANVAS // ////////////////////////////////////////////////////////////////////////////////////////// abstract public class CustomCanvas extends JComponent implements MouseInputListener { // general global variables protected String SERVER_URL; // init by Init_Server routine, called by hermes_applet.class protected JPopupMenu popup=null; // right-click menu item protected Point point = null; // most recently clicked point protected Point point2 = null; // current cursor point protected Point point3 = null; // most recent mouse-down point - used in mousedragged event protected Point point4 = null; // current drag point - used in mousedragged event protected JLabel glob_label; // the label at the top of the panel protected Vector txtlabels = new Vector(); // list textlabels with x,y locations for rendering protected Vector partners = new Vector(); // list of partners is updated per UpdatePartners(), expanded with addPartner protected Vector children = new Vector(); // updated per UpdateChildren(), expanded with addChild protected Vector parents = new Vector(); // updated per UpdateParent(), expanded with addParent protected JLabel dynamicLabel = null; // set non-null by addDynamicLabel // graphics related global variables protected boolean firstDraw = true; // set to false after first rendering - allows for dynamic screen-size based variables to be created protected int grid_x_threshold=0; // set by setxedge function protected int grid_y_threshold=0; // set by setyedge function protected int leftx; // init by paintComponent protected int rightx; // init by paintComponent protected int width; // init by paintComponent protected int top; // init by paintComponent protected int bot; // init by paintComponent protected int gridx=0; // pixels/division in x grid spacing - DUMMY INITIALIZATION NECESSARY HERE protected int gridy=0; // pixels/division in y grid spacing - DUMMY INITIALIZATION NECESSARY HERE protected float upperx = -1; // above upperx UNITS (i.e. accounts for unitsperpixel) is shaded yellow - protected float lowerx = -1; // below lowerx UNITS (i.e. accounts for unitsperpixel) is shaded yellow protected float uppery = -1; // above uppery UNITS (i.e. accounts for unitsperpixel) is shaded yellow protected float lowery = -1; // below lowery UNITS (i.e. accounts for unitsperpixel) is shaded yellow protected boolean setupperx=false; // becomes true under appropriate right-click selection protected boolean setuppery=false; // becomes true under appropriate right-click selection protected boolean setlowerx=false; // becomes true under appropriate right-click selection protected boolean setlowery=false; // becomes true under appropriate right-click selection protected boolean autoScaleY = false; // set to true with autoscale call to polymorphic setLabelParams // variables for drawing x & y labels protected int fudge_y=0; protected int unitsperpixel_y_num=-1; protected int unitsperpixel_y_den=-1; protected String ytype=""; protected String ylabel=""; protected int fudge_x=0; protected int unitsperpixel_x_num=-1; protected int unitsperpixel_x_den=-1; protected String xtype=""; protected String xlabel=""; // state variables for child & parent protected int INDEX_PARENT = -1; protected String PARENT_DISPLAY_MODE = "NORMAL"; // may be "ZOOM" or "NORMAL" - set through accessor function setDisplayMode, this reflects state of PARENT, not THIS canvas! protected int PARENT_ZOOM_FACTOR; // data to be rendered on canvas protected Vector signal = new Vector(); ///////////////////////////////////////////////////////////////////////////////////////////////////////////// // PUBLIC ACCESSORS/MODIFIERS ///////////////////////////////////////////////////////////////////////////////////////////////////////////// public void addPopupMenu() { this.popup = new JPopupMenu(); } public void addSubMenutoPopup(JMenu submenu) { popup.add(submenu); } public JPopupMenu getPopupMenu() { return this.popup; } public void addDynamicLabel(JLabel labl) { this.dynamicLabel = labl; } public ButtonGroup addGroup() { ButtonGroup group = new ButtonGroup(); return group; } public abstract void addRadio(ButtonGroup group, String name, String status); public abstract void addRadiotoSubMenu(JMenu submenu, ButtonGroup group, String name, String status); public abstract void addPopupMenuItem(String menuitem); public abstract void load(String URL); public void addPopupSeparator() { popup.addSeparator(); } public void addSubMenu(JMenu submenu) { popup.add(submenu); } public void setxedge(int x) { this.grid_x_threshold = x; } public void setyedge(int y) { this.grid_y_threshold = y; } // polymorphic function setLabelParams public void setLabelParams(int fudge_y, int upp_y_num, int upp_y_den, String ytype, int fudge_x, int upp_x_num, int upp_x_den, String xtype, String ylabel, String xlabel) { this.fudge_y = fudge_y; this.fudge_x = fudge_x; this.unitsperpixel_x_num = upp_x_num; this.unitsperpixel_y_num = upp_y_num; this.unitsperpixel_x_den = upp_x_den; this.unitsperpixel_y_den = upp_y_den; this.ytype = ytype; this.xtype = xtype; this.xlabel = xlabel; this.ylabel = ylabel; } public void setLabelParams(int fudge_y, String AutoScaleOption, String ytype, int fudge_x, int upp_x_num, int upp_x_den, String xtype, String ylabel, String xlabel) { this.fudge_y = fudge_y; this.fudge_x = fudge_x; this. unitsperpixel_x_num = upp_x_num; this. unitsperpixel_x_den = upp_x_den; this.ytype = ytype; this.xtype = xtype; this.xlabel = xlabel; this.ylabel = ylabel; if(AutoScaleOption == "AUTOYSCALE") {this.autoScaleY = true;} else {System.out.println("ERROR: Unexpected String value AutoScaleOption in function setLabelParams");} } public void addPartner(CustomCanvas partner) { partners.addElement(partner); } public void addChild(CustomCanvas child) { children.addElement(child); child.Set_INDEX_PARENT(this.grid_x_threshold); // tell the child the parent's index } public void addParent(CustomCanvas parent) { parents.addElement(parent); } final protected void Set_INDEX_PARENT(int index) { this.INDEX_PARENT = index; } /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // PROTECTED FUNCTIONS /////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// protected abstract void ParentUpdate(Object param1); protected abstract void ParentUpdate(Object param1, Object param2); protected abstract void ChildUpdate(Object param1); protected abstract void ChildUpdate(Object index1, Object index2); protected abstract int ConvertYUnitstoPix(float yval); protected abstract int ConvertXUnitstoPix(float xval); protected abstract float ConvertYPixtoUnits(int ypixval); protected abstract float ConvertXPixtoUnits(int xpixval); protected abstract void drawlimits(Graphics2D g); protected abstract void init(); protected abstract void drawSignal(Graphics2D g); public void setParentDisplayMode(String Mode, int PARENT_ZOOM_FACTOR) { this.PARENT_DISPLAY_MODE = Mode; this.PARENT_ZOOM_FACTOR = PARENT_ZOOM_FACTOR; } //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // PRIVATE (LOCAL) FUNCTIONS //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // set labels based on canvas size protected void setTextLabels(Graphics2D g, int render_offset) { int i = (this.grid_x_threshold) + render_offset; int spacing; // set spacing of x-axis labels if(this.gridx <= 75) { int tmp = (int) 75/this.gridx; spacing = tmp*this.gridx; } else {spacing = this.gridx;} FontMetrics fm = g.getFontMetrics(); //get the font metrics (used for string sizes) int stringwidth = fm.stringWidth(this.xlabel); int stringheight = fm.getHeight(); int buffer = 3; // x-axis labels while((i-render_offset) < (this.rightx-stringwidth-25)) { if(this.xtype == "FLOAT") { float lablval = (float)(((float)i-(float)(this.grid_x_threshold))*unitsperpixel_x_num/unitsperpixel_x_den); String labl = Float.toString(lablval); this.addText(labl,i-render_offset,this.bot-(this.grid_y_threshold-stringheight)-buffer, Color.BLACK, "CENTER","NO_ROTATE"); } if(this.xtype == "INT") { int lablval = (int)(((float)i-(float)(this.grid_x_threshold))*(float)unitsperpixel_x_num/unitsperpixel_x_den); String labl = Integer.toString(lablval); this.addText(labl,i-render_offset,this.bot-(this.grid_y_threshold-stringheight)-buffer, Color.BLACK, "CENTER","NO_ROTATE"); } i += spacing; } // y-axis labels int j=0; i = this.bot-this.grid_y_threshold+this.fudge_y; spacing = this.gridy*4; while(i > this.top) { String labl; float lablval = (float)((float)j*(float)unitsperpixel_y_num/unitsperpixel_y_den); int lablval_int; int first_decimal; if(lablval > 1000000) { lablval_int = (int)(lablval)/1000000; first_decimal = (int)((lablval-1000000*lablval_int)/100000); labl = new String(lablval_int + "." + first_decimal + "M"); } else if(lablval > 1000) { lablval_int = (int)(lablval)/1000; first_decimal = (int)((lablval-1000*lablval_int)/100); labl = new String(lablval_int + "." + first_decimal + "k"); } else { if(lablval == (float)0) {labl = new String((int)lablval + "");} else {labl = new String((int)lablval + "");} } this.addText(labl, (this.grid_x_threshold)-this.fudge_x, i, Color.BLACK, "CENTER","NO_ROTATE"); i -= spacing; j += spacing; } // units labels this.addText(this.ylabel, this.leftx+stringheight, (this.bot-this.top)/2, Color.BLUE, "CENTER","ROTATE"); this.addText(this.xlabel, this.rightx-10, this.bot-(this.grid_y_threshold-12) , Color.BLUE, "LEFT","NO_ROTATE"); } // automatically sets y-axes and scaling based on maximum value in signal vector protected void set_y_scale() { Enumeration enum1 = signal.elements(); Integer max = new Integer(0); while(enum1.hasMoreElements()) { Integer current = (Integer) enum1.nextElement(); if(current.intValue() > max.intValue()) {max = current;} } int mag = 1; while( (float)max.intValue()/(float)mag > 1 ) {mag *= 10;} mag /= 10; while( (float)max.intValue()/(float)mag > 1 ) {mag *= 5;} mag /= 5; while( (float)max.intValue()/(float)mag > 1 ) {mag *= 2;} this. unitsperpixel_y_num = mag; this. unitsperpixel_y_den = (this.bot-this.grid_y_threshold)-this.top; } // Draws text labels contained in txtlabels vector protected void drawTextLabels(Graphics2D g) { Enumeration enum1 = txtlabels.elements(); // save the current color to restore after drawing labels Color tmp = g.getColor(); g.setColor(Color.BLUE); // go through each label in txtlabels vector while(enum1.hasMoreElements()) { TxtLabel currentlabel = (TxtLabel) enum1.nextElement(); g.setColor(currentlabel.labelcolor); FontMetrics fmetrics = g.getFontMetrics(); int len = fmetrics.stringWidth(currentlabel.txt); // non-rotated text label if (currentlabel.rotation == "NO_ROTATE") { int x = currentlabel.xval; if (currentlabel.alignmentType == "RIGHT") { x += len; g.drawString(currentlabel.txt, x, currentlabel.yval); } if (currentlabel.alignmentType == "CENTER") { x -= len/2; g.drawString(currentlabel.txt, x, currentlabel.yval); } if (currentlabel.alignmentType == "LEFT") { x -= len; g.drawString(currentlabel.txt, x, currentlabel.yval); } g.drawString(currentlabel.txt, x, currentlabel.yval); } // rotated text label if (currentlabel.rotation == "ROTATE") { // after 90 deg rotation, x & y swapped int x = -currentlabel.yval; if(currentlabel.alignmentType == "RIGHT") { x += len; } if(currentlabel.alignmentType == "CENTER") { x -= len/2; } if(currentlabel.alignmentType == "LEFT") { x -= len; } double theta = 3.14159/2; g.rotate(-theta); // rotate canvas clockwise by theta rads g.drawString(currentlabel.txt, x, currentlabel.xval); g.rotate(theta); // rotate canvas counter-clockwise by theta rads } } // end while loop // restore color g.setColor(tmp); } //Draws a grid using the current color. protected void drawGrid(Graphics2D g, int gridX, int gridY) { //Draw vertical lines. int x = this.grid_x_threshold; while (x <= this.rightx) { g.drawLine(x, this.top, x, this.bot-this.grid_y_threshold); x += gridX; } //Draw horizontal lines. int y = this.bot-this.grid_y_threshold; while (y >= this.top) { g.drawLine(this.grid_x_threshold, y, this.rightx, y); y -= gridY; } } protected void removeText(TxtLabel labl) { this.txtlabels.removeElement(labl); } protected void clearTextLabels() { this.txtlabels.removeAllElements(); } protected void addTextLabel(TxtLabel labl) { this.txtlabels.addElement(labl); } protected void addText(String txt, int x, int y, Color txtcolor, String align, String rotate) { TxtLabel tmp = new TxtLabel(txt,x,y,txtcolor,align,rotate); this.txtlabels.addElement(tmp); } //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// // MOUSE LISTENERS - required by Interface MouseInputListener //////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// public void mouseExited(MouseEvent e) { this.setupperx = false; this.setlowerx = false; this.setuppery = false; this.setlowery = false; this.point2 = null; this.point3 = null; this.point4 = null; this.repaint(); e.consume(); } public void mouseReleased(MouseEvent e) {e.consume();} public void mouseEntered(MouseEvent e) {e.consume();} public void mousePressed(MouseEvent e) { if(this.point3 == null) {this.point3 = new Point(e.getX(),e.getY());} else {this.point3.x = e.getX(); this.point3.y = e.getY(); this.repaint();} e.consume(); } public void mouseDragged(MouseEvent e) { if(this.point3 != null) { if(this.point4 == null) {this.point4 = new Point(e.getX(),e.getY());} else { this.point4.x = e.getX(); this.point4.y = e.getY(); } this.repaint(); } e.consume(); } } ////////////////////////////////////////////////////////////////////////////////////////// // END CUSTOMCANVAS END CUSTOMCANVAS END CUSTOMCANVAS // //////////////////////////////////////////////////////////////////////////////////////////