[#2055] Add manufacturers substitutor

core/resources/l10n/messages.properties

@@ -2263,6 +2263,7 @@ SeparationSelectionDialog.opt.override = Override for the {0} flight configurati
 MotorConfigurationPanel.description = <b>Select the motors and motor ignition events of the selected flight configuration.</b><br> <em>Motor mounts:</em> Select which components function as motor mounts.<br> <em>Motor configurations:</em> Select the motor and ignition event for each motor mount.
 
 MotorDescriptionSubstitutor.description = Motors in the configuration
+MotorManufacturerSubstitutor.description = Motor manufacturers in the configuration
 
 
 !Photo Panel

core/src/net/sf/openrocket/formatting/MotorManufacturerSubstitutor.java

@@ -0,0 +1,144 @@
+package net.sf.openrocket.formatting;
+
+import com.google.inject.Inject;
+import net.sf.openrocket.l10n.Translator;
+import net.sf.openrocket.motor.Motor;
+import net.sf.openrocket.motor.MotorConfiguration;
+import net.sf.openrocket.motor.ThrustCurveMotor;
+import net.sf.openrocket.plugin.Plugin;
+import net.sf.openrocket.rocketcomponent.AxialStage;
+import net.sf.openrocket.rocketcomponent.FlightConfigurationId;
+import net.sf.openrocket.rocketcomponent.MotorMount;
+import net.sf.openrocket.rocketcomponent.Rocket;
+import net.sf.openrocket.rocketcomponent.RocketComponent;
+import net.sf.openrocket.util.ArrayList;
+import net.sf.openrocket.util.Chars;
+
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+
+@Plugin
+public class MotorManufacturerSubstitutor implements RocketSubstitutor {
+    public static final String SUBSTITUTION = "{manufacturers}";
+
+    @Inject
+    private Translator trans;
+
+    @Override
+    public boolean containsSubstitution(String str) {
+        return str.contains(SUBSTITUTION);
+    }
+
+    @Override
+    public String substitute(String str, Rocket rocket, FlightConfigurationId configId) {
+        String description = getMotorConfigurationManufacturer(rocket, configId);
+        return str.replace(SUBSTITUTION, description);
+    }
+
+    @Override
+    public Map<String, String> getDescriptions() {
+        Map<String, String> desc = new HashMap<>();
+        desc.put(SUBSTITUTION, trans.get("MotorManufacturerSubstitutor.description"));
+        return null;
+    }
+
+
+
+    public String getMotorConfigurationManufacturer(Rocket rocket, FlightConfigurationId fcid) {
+        String manufacturers;
+        int motorCount = 0;
+
+        // Generate the description
+
+        // First iterate over each stage and store the manufacturer of each motor
+        List<List<String>> list = new ArrayList<>();
+        List<String> currentList = Collections.emptyList();
+
+        for (RocketComponent c : rocket) {
+            if (c instanceof AxialStage) {
+                currentList = new ArrayList<>();
+                list.add(currentList);
+
+            } else if (c instanceof MotorMount) {
+                MotorMount mount = (MotorMount) c;
+                MotorConfiguration inst = mount.getMotorConfig(fcid);
+                Motor motor = inst.getMotor();
+
+                if (mount.isMotorMount() && motor instanceof ThrustCurveMotor) {
+                    String manufacturer = ((ThrustCurveMotor) motor).getManufacturer().getDisplayName();
+
+                    for (int i = 0; i < mount.getMotorCount(); i++) {
+                        currentList.add(manufacturer);
+                        motorCount++;
+                    }
+                }
+            }
+        }
+
+        if (motorCount == 0) {
+            return trans.get("Rocket.motorCount.Nomotor");
+        }
+
+        // Change multiple occurrences of a motor to n x motor
+        List<String> stages = new ArrayList<>();
+
+        for (List<String> stage : list) {
+            String stageName = "";
+            String previous = null;
+            int count = 0;
+
+            Collections.sort(stage);
+            for (String current : stage) {
+                if (current.equals(previous)) {
+                    count++;
+                } else {
+                    if (previous != null) {
+                        String s = "";
+                        if (count > 1) {
+                            s = "" + count + Chars.TIMES + previous;
+                        } else {
+                            s = previous;
+                        }
+
+                        if (stageName.equals(""))
+                            stageName = s;
+                        else
+                            stageName = stageName + "," + s;
+                    }
+
+                    previous = current;
+                    count = 1;
+                }
+            }
+            if (previous != null) {
+                String s = "";
+                if (count > 1) {
+                    s = "" + count + Chars.TIMES + previous;
+                } else {
+                    s = previous;
+                }
+
+                if (stageName.equals(""))
+                    stageName = s;
+                else
+                    stageName = stageName + "," + s;
+            }
+            stages.add(stageName);
+        }
+
+        manufacturers = "";
+        for (int i = 0; i < stages.size(); i++) {
+            String s = stages.get(i);
+            if (s.equals(""))
+                s = trans.get("Rocket.motorCount.noStageMotors");
+            if (i == 0)
+                manufacturers = manufacturers + s;
+            else
+                manufacturers = manufacturers + "; " + s;
+        }
+        return manufacturers;
+    }
+}
+