private void openMenuItemActionPerformed(
java.awt.event.ActionEvent evt) { // GEN-FIRST:event_openMenuItemActionPerformed
this.jTextStatus.setText("");
if (this.jOpenFileChooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
File file = this.jOpenFileChooser.getSelectedFile();
this.clearAll();
try {
BufferedReader input = new BufferedReader(new FileReader(file));
try {
String line = null;
line = input.readLine();
while (line != null) {
String splitLine[] = line.split(":");
if (splitLine[0].equals("Vertex")) {
int d = Integer.parseInt(splitLine[1]);
int x = Integer.parseInt(splitLine[2]);
int y = Integer.parseInt(splitLine[3]);
this.pnGraph.listVertexs.add(new Vertex(x, y, d, -1));
} else if (splitLine[0].equals("Edge")) {
Vertex headVertex = this.pnGraph.listVertexs.get(Integer.parseInt(splitLine[1]));
Vertex tailVertex = this.pnGraph.listVertexs.get(Integer.parseInt(splitLine[2]));
int l = Integer.parseInt(splitLine[3]);
Edge edge = new Edge(headVertex, tailVertex, l);
edge.edgeType = this.pnGraph.checkEdge(headVertex, tailVertex);
headVertex.outgoingEdges.add(edge);
tailVertex.incomingEdges.add(edge);
this.pnGraph.listEdges.add(edge);
}
line = input.readLine();
}
this.jTextStatus.setText("Load graph successfully");
} finally {
input.close();
}
} catch (IOException e) {
}
}
} // GEN-LAST:event_openMenuItemActionPerformed
private void pnGraphMouseReleased(
java.awt.event.MouseEvent evt) { // GEN-FIRST:event_pnGraphMouseReleased
int x = 0;
int y = 0;
Vertex vertex = null;
if (this.drawType != DrawType.NODRAW || this.start || this.end) {
x = evt.getX() - jGraphPanel.radius / 2;
y = evt.getY() - jGraphPanel.radius / 2;
if (x < 0 || y < 0) {
this.jTextStatus.setText("Invalid position");
this.drawType = DrawType.NODRAW;
return;
}
vertex = this.pnGraph.checkInVertex(x, y);
if (vertex != null)
if (vertex.state != State.LABELED)
if (this.start) {
vertex.state = State.LABELED;
vertex.setKey(0);
this.startVertex = vertex;
this.jTextStatus.setText("");
this.jSolution.append(
"Starting vertex\t: Vertex " + Integer.toString(vertex.getData()) + "\n");
this.start = false;
} else if (this.end) {
vertex.state = State.LABELED;
this.endVertex = vertex;
this.jTextStatus.setText("");
this.jSolution.append(
"Ending vertex\t: Vertex " + Integer.toString(vertex.getData()) + "\n");
this.end = false;
}
}
if (this.drawType == DrawType.VERTEXS) {
if (vertex != null) {
this.jTextStatus.setText("Concurred with another vertex");
} else {
this.pnGraph.listVertexs.add(new Vertex(x, y, this.numVertexs, -1));
this.numVertexs++;
}
} else if (this.drawType == DrawType.EDGES) {
if (vertex == null) this.jTextStatus.setText("You must click on exist vertex");
else if (vertex == this.head) this.jTextStatus.setText("You must choose another vertex");
else {
if (draw) {
this.pnGraph.mDrag = false;
this.pnGraph.head = null;
Edge edge = new Edge(this.head, vertex, 10);
edge.edgeType = this.pnGraph.checkEdge(this.head, vertex);
if (this.jRandomCheck.isSelected()) {
Random random = new Random();
edge.setLength(random.nextInt(20));
} else
edge.setLength(
Integer.parseInt(
JOptionPane.showInputDialog(
null, "Length of edge", "Edge", JOptionPane.QUESTION_MESSAGE)));
this.head.outgoingEdges.add(edge);
vertex.incomingEdges.add(edge);
this.pnGraph.listEdges.add(edge);
this.head = null;
this.jTextStatus.setText("Draw an edge");
this.draw = false;
} else {
this.head = vertex;
this.pnGraph.head = vertex;
this.pnGraph.xM = evt.getX();
this.pnGraph.yM = evt.getY();
this.pnGraph.mDrag = true;
this.jTextStatus.setText("Choose tail vertex");
this.draw = true;
}
}
}
this.pnGraph.repaint();
} // GEN-LAST:event_pnGraphMouseReleased
