import java.applet.Applet; import java.awt.*; import java.util.Vector; /** class SequenceDiagram * creates a sequence of diagrams using the sequential layout manager * 1, 2, 3, 4, or an array of diagrams can be used * There are 5 additional constructors that allow the direction of the * flow of the diagram to be designated by the first parameter which * indicates if the diagram is to be reversed */ public class SequenceDiagram extends Diagram{ // There are 10 constructors for this class. 5 are the constructors // for 1, 2, 3, 4 diagrams or an array of diagrams. The additional // 5 constructors repeat the code for these but add an extra parameter // to indicate that the diagram should be reversed (for sequences // embedded in loops). It was decided during design that the few // times this happens does not warrant requiring the direction of flow // for every sequence. The builder of the diagrams needs to be // aware of this feature. // // Each constructor adds a simple connector to the beginning and // the end of the completed diagram. // The inner diagrams are added with connectors between each pair // // The constructors with an extra parameter check the direction of // flow and add the inner diagrams in the appropriate order // //1 in sequence public SequenceDiagram(Diagram diagram1) { setLayout (new SequentialLayout()); Dimension dim = diagram1.preferredSize(); Diagram connect1 = new Connector (connectorSize); Diagram connect2 = new Connector (connectorSize); add (connect1); add (diagram1); add (connect2); connectorLocation = diagram1.connectorLocation; } //2 in sequence public SequenceDiagram(Diagram diagram1, Diagram diagram2) { setLayout (new SequentialLayout()); Diagram connect1 = new Connector (connectorSize); Diagram connect2 = new Connector (connectorSize); Diagram connect3 = new Connector (connectorSize); add (connect1); add (diagram1); add (connect2); add (diagram2); add (connect3); connectorLocation = Math.max(diagram1.connectorLocation, diagram2.connectorLocation); } //3 in sequence public SequenceDiagram(Diagram diagram1, Diagram diagram2, Diagram diagram3) { setLayout (new SequentialLayout()); Diagram connect1 = new Connector (connectorSize); Diagram connect2 = new Connector (connectorSize); Diagram connect3 = new Connector (connectorSize); Diagram connect4 = new Connector (connectorSize); add (connect1); add (diagram1); add (connect2); add (diagram2); add (connect3); add (diagram3); add (connect4); connectorLocation = Math.max(diagram1.connectorLocation, Math.max(diagram2.connectorLocation, diagram3.connectorLocation)); } //4 in sequence public SequenceDiagram(Diagram diagram1, Diagram diagram2, Diagram diagram3, Diagram diagram4) { setLayout (new SequentialLayout()); Diagram connect1 = new Connector (connectorSize); Diagram connect2 = new Connector (connectorSize); Diagram connect3 = new Connector (connectorSize); Diagram connect4 = new Connector (connectorSize); Diagram connect5 = new Connector (connectorSize); add (connect1); add (diagram1); add (connect2); add (diagram2); add (connect3); add (diagram3); add (connect4); add (diagram4); add (connect5); connectorLocation = Math.max(diagram1.connectorLocation, Math.max(diagram2.connectorLocation, Math.max(diagram3.connectorLocation, diagram4.connectorLocation))); } //an array of diagrams in sequence public SequenceDiagram(Diagram diagram[], int size) { initFromArray(diagram, size); } //a Vector of diagrams in sequence public SequenceDiagram(Vector vect) { int size = vect.size(); Diagram[] diag = new Diagram[size]; vect.copyInto((Object[])diag); if (size > 0) { initFromArray(diag, size); } else { System.out.println("Error instantiating SequenceDiagram"); System.out.println(" Diagram vector parameter is empty"); } } //1 in sequence public SequenceDiagram(boolean reversed, Diagram diagram1) { setLayout (new SequentialLayout()); Dimension dim = diagram1.preferredSize(); Diagram connect1 = new Connector (connectorSize); Diagram connect2 = new Connector (connectorSize); add (connect1); add (diagram1); add (connect2); connectorLocation = diagram1.connectorLocation; } //2 in sequence public SequenceDiagram(boolean reversed, Diagram diagram1, Diagram diagram2) { setLayout (new SequentialLayout()); Diagram connect1 = new Connector (connectorSize); Diagram connect2 = new Connector (connectorSize); Diagram connect3 = new Connector (connectorSize); add (connect1); if (!reversed){ add (diagram1); add (connect2); add (diagram2); } else{ add (diagram2); add (connect2); add (diagram1); } add (connect3); connectorLocation = Math.max(diagram1.connectorLocation, diagram2.connectorLocation); } //3 in sequence public SequenceDiagram(boolean reversed, Diagram diagram1, Diagram diagram2, Diagram diagram3) { setLayout (new SequentialLayout()); Diagram connect1 = new Connector (connectorSize); Diagram connect2 = new Connector (connectorSize); Diagram connect3 = new Connector (connectorSize); Diagram connect4 = new Connector (connectorSize); add (connect1); if (!reversed){ add (diagram1); add (connect2); add (diagram2); add (connect3); add (diagram3); } else{ add (diagram3); add (connect3); add (diagram2); add (connect2); add (diagram1); } add (connect4); connectorLocation = Math.max(diagram1.connectorLocation, Math.max(diagram2.connectorLocation, diagram3.connectorLocation)); } //4 in sequence public SequenceDiagram(boolean reversed, Diagram diagram1, Diagram diagram2, Diagram diagram3, Diagram diagram4) { setLayout (new SequentialLayout()); Diagram connect1 = new Connector (connectorSize); Diagram connect2 = new Connector (connectorSize); Diagram connect3 = new Connector (connectorSize); Diagram connect4 = new Connector (connectorSize); Diagram connect5 = new Connector (connectorSize); add (connect1); if (!reversed){ add (diagram1); add (connect2); add (diagram2); add (connect3); add (diagram3); add (connect4); add (diagram4); } else{ add (diagram4); add (connect4); add (diagram3); add (connect3); add (diagram2); add (connect2); add (diagram1); } add (connect5); connectorLocation = Math.max(diagram1.connectorLocation, Math.max(diagram2.connectorLocation, Math.max(diagram3.connectorLocation, diagram4.connectorLocation))); } //an array of diagrams in sequence public SequenceDiagram(boolean reversed, Diagram diagram[], int size) { initFromArray(reversed, diagram, size); } //a Vector of diagrams in sequence public SequenceDiagram(boolean reversed, Vector vect) { int size = vect.size(); Diagram[] diag = new Diagram[size]; vect.copyInto((Object[])diag); if (size > 0) { initFromArray(reversed, diag, size); } else { System.out.println("Error instantiating SequenceDiagram"); System.out.println(" Diagram vector parameter is empty"); } } //initialize the sequence from an array of Diagrams private void initFromArray(Diagram diagram[], int size) { Dimension dim = diagram[0].preferredSize(); Diagram connect = new Connector (connectorSize); setLayout (new SequentialLayout()); connectorLocation = 0; add (connect); for (int i = 0; i < size; i++){ add (diagram[i]); connect = new Connector (connectorSize); add (connect); connectorLocation = Math.max(connectorLocation, diagram[i].connectorLocation); } } //initialize the sequence from an array of Diagrams private void initFromArray(boolean reversed, Diagram diagram[], int size) { Dimension dim = diagram[0].preferredSize(); Diagram connect = new Connector (connectorSize); setLayout (new SequentialLayout()); connectorLocation = 0; add (connect); if (!reversed){ for (int i = size - 1; i <= 0; i--){ add (diagram[i]); connect = new Connector (connectorSize); add (connect); connectorLocation = Math.max(connectorLocation, diagram[i].connectorLocation); } } else{ for (int i = 0; i < size; i++){ add (diagram[i]); connect = new Connector (connectorSize); add (connect); connectorLocation = Math.max(connectorLocation, diagram[i].connectorLocation); } } } }