Java: Diagramme de Gantt (donnés bidon)

java/app/src/main/java/application/ProjetController.java

@@ -2,11 +2,17 @@ package application;
 
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
+import javafx.geometry.VPos;
 import javafx.scene.canvas.Canvas;
+import javafx.scene.canvas.GraphicsContext;
 import javafx.scene.control.CheckBox;
 import javafx.scene.control.Label;
 import javafx.scene.control.Spinner;
 import javafx.scene.control.TextField;
+import javafx.scene.layout.AnchorPane;
+import javafx.scene.paint.Color;
+import javafx.scene.paint.Paint;
+import javafx.scene.text.Font;
 
 public class ProjetController {
 
@@ -25,6 +31,78 @@ public class ProjetController {
     @FXML
     Canvas _canvas;
 
+    private void redrawGraph()
+    {
+        // Constantes
+        final double w = _canvas.getWidth();
+        final double h = _canvas.getHeight();
+        final double xmargin    = 90;   // Marge pour nom de machine
+        final double dtunit     = 20;   // Unité en pixels pour un delta de 1 T.
+        final double hentry     = 32;
+
+        // Préparation de la toile.
+        GraphicsContext g = _canvas.getGraphicsContext2D();
+        g.clearRect(0, 0, w, h);
+        g.setTextBaseline(VPos.CENTER);
+
+        // Marge
+        g.setStroke(Color.DARKGRAY);
+        g.strokeRect(0, 0, xmargin, h);
+
+        // Remplissage alterné des machines. (avec données de test)
+        var machines = new String[]{"M1","M2","M300"};
+        int mach = 0;
+        for (int y = 0; y < _canvas.getHeight(); y += hentry)
+        {
+            if ((y & 32) == 0)
+            {
+                g.setFill(Color.LIGHTGRAY);
+                g.fillRect(xmargin, y, w - xmargin, hentry);
+            }
+            if (mach < machines.length)
+            {
+                g.setFill(Color.DARKGRAY);
+                g.fillText(machines[mach++], 4, y + (hentry / 2), xmargin - 4);
+            }
+        }
+
+        // Affichage des tâches par machine (Avec données de test)
+        var task_machine = new int[] {0, 1, 2};
+        var task_begin = new int[] {1, 4, 12};
+        var task_enddt = new int[] {2, 6, 8};
+        g.setFill(Color.DODGERBLUE);
+        for (int i = 0; i < task_machine.length; ++i)
+        {
+            g.fillRect(xmargin + (task_begin[i] * dtunit),
+                    task_machine[i] * hentry,
+                    task_enddt[i] * dtunit,
+                    hentry);
+        }
+
+        // Et enfin, remplissage du temps par unités delta
+        g.setStroke(Color.BLACK);
+        for (int x = 0; x < _canvas.getWidth(); x += dtunit)
+            g.strokeLine(xmargin + x, 0, xmargin + x, h);
+    }
+
+    @FXML
+    public void initialize()
+    {
+        redrawGraph();
+        ((AnchorPane)_canvas.getParent()).widthProperty().addListener(
+                (observableValue, number, t1) -> {
+                    _canvas.setWidth(number.doubleValue());
+                    redrawGraph();
+                }
+        );
+        ((AnchorPane)_canvas.getParent()).heightProperty().addListener(
+                (observableValue, number, t1) -> {
+                    _canvas.setHeight(number.doubleValue());
+                    redrawGraph();
+                }
+        );
+    }
+
     @FXML
     public void submitToDiagram(ActionEvent event)
     {

java/app/src/main/resources/application/ProjetView.fxml

@@ -8,7 +8,6 @@
 <?import javafx.scene.control.SplitPane?>
 <?import javafx.scene.control.TextField?>
 <?import javafx.scene.layout.AnchorPane?>
-<?import javafx.scene.layout.BorderPane?>
 <?import javafx.scene.layout.Pane?>
 <?import javafx.scene.layout.VBox?>
 <?import javafx.scene.text.Text?>
@@ -37,11 +36,7 @@
          </children></AnchorPane>
     <AnchorPane minHeight="0.0" minWidth="0.0" prefHeight="160.0" prefWidth="100.0">
          <children>
-            <BorderPane prefHeight="398.4" prefWidth="417.6" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0">
-               <center>
-                  <Canvas fx:id="_canvas" height="380.0" width="400.0" BorderPane.alignment="CENTER" />
-               </center>
-            </BorderPane>
+            <Canvas fx:id="_canvas" height="380.0" width="400.0" AnchorPane.bottomAnchor="0.0" AnchorPane.leftAnchor="0.0" AnchorPane.rightAnchor="0.0" AnchorPane.topAnchor="0.0" />
          </children></AnchorPane>
   </items>
 </SplitPane>