Issue #65 - added the settings page with dot executable path.

META-INF/plugin.xml

@@ -56,5 +56,7 @@
         <fileTypeFactory implementation="org.plantuml.idea.lang.PlantUmlTypeFactory"/>
         <lang.parserDefinition language="PUML"
                                implementationClass="org.plantuml.idea.lang.PlantUmlParserDefinition"/>
+        <applicationConfigurable instance="org.plantuml.idea.lang.settings.PlantUmlSettingsPage"/>
+        <applicationService serviceImplementation="org.plantuml.idea.lang.settings.PlantUmlSettings"/>
     </extensions>
-</idea-plugin>
+</idea-plugin>

NOTICE.txt

@@ -2,4 +2,6 @@ PlantUml4Idea
 Copyright (c) 2012-2014 Eugene Steinberg
 
 This product includes software developed at
-PlantUml http://plantuml.sourceforge.net/
+PlantUml http://plantuml.sourceforge.net/
+
+Portions of this software were developed at Google.

README.md

@@ -10,6 +10,7 @@ Author: [Eugene Steinberg](https://github.com/esteinberg)
 Contributors:
  * [Ivan Mamontov](https://github.com/IvanMamontov)
  * [Henady Zakalusky](https://github.com/hza)
+ * [Max Gorbunov](https://github.com/6zow)
 
 # Features
 

src/org/plantuml/idea/lang/settings/PlantUmlSettings.java

@@ -0,0 +1,42 @@
+package org.plantuml.idea.lang.settings;
+
+import com.intellij.openapi.components.*;
+import com.intellij.util.xmlb.XmlSerializerUtil;
+import net.sourceforge.plantuml.OptionFlags;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @author Max Gorbunov
+ */
+@State(name = "PlantUmlSettings", storages = {@Storage(file = StoragePathMacros.APP_CONFIG + "/plantuml.cfg")})
+public class PlantUmlSettings implements PersistentStateComponent<PlantUmlSettings> {
+    private String dotExecutable = null;
+
+    public static PlantUmlSettings getInstance() {
+        return ServiceManager.getService(PlantUmlSettings.class);
+    }
+
+    public String getDotExecutable() {
+        return dotExecutable;
+    }
+
+    public void setDotExecutable(String dotExecutable) {
+        this.dotExecutable = dotExecutable;
+        if ("".equals(dotExecutable)) {
+            this.dotExecutable = null;
+        }
+        OptionFlags.getInstance().setDotExecutable(this.dotExecutable);
+    }
+
+    @Nullable
+    @Override
+    public PlantUmlSettings getState() {
+        return this;
+    }
+
+    @Override
+    public void loadState(PlantUmlSettings state) {
+        XmlSerializerUtil.copyBean(state, this);
+        OptionFlags.getInstance().setDotExecutable(dotExecutable);
+    }
+}

src/org/plantuml/idea/lang/settings/PlantUmlSettingsPage.form

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="org.plantuml.idea.lang.settings.PlantUmlSettingsPage">
+  <grid id="27dc6" binding="panel" layout-manager="GridLayoutManager" row-count="2" column-count="2" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+    <margin top="0" left="0" bottom="0" right="0"/>
+    <constraints>
+      <xy x="20" y="20" width="500" height="400"/>
+    </constraints>
+    <properties/>
+    <border type="none"/>
+    <children>
+      <component id="36d0" class="javax.swing.JLabel">
+        <constraints>
+          <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties>
+          <text value="Graphviz dot executable:"/>
+        </properties>
+      </component>
+      <vspacer id="68158">
+        <constraints>
+          <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </vspacer>
+      <component id="c9516" class="javax.swing.JTextField" binding="textFieldDotExecutable">
+        <constraints>
+          <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
+            <preferred-size width="150" height="-1"/>
+          </grid>
+        </constraints>
+        <properties/>
+      </component>
+    </children>
+  </grid>
+</form>

src/org/plantuml/idea/lang/settings/PlantUmlSettingsPage.java

@@ -0,0 +1,53 @@
+package org.plantuml.idea.lang.settings;
+
+import com.intellij.openapi.options.Configurable;
+import com.intellij.openapi.options.ConfigurationException;
+import org.jetbrains.annotations.Nls;
+import org.jetbrains.annotations.Nullable;
+
+import javax.swing.*;
+
+/**
+ * @author Max Gorbunov
+ */
+public class PlantUmlSettingsPage implements Configurable {
+    private JPanel panel;
+    private JTextField textFieldDotExecutable;
+
+    @Nls
+    @Override
+    public String getDisplayName() {
+        return "PlantUML";
+    }
+
+    @Nullable
+    @Override
+    public String getHelpTopic() {
+        return null;
+    }
+
+    @Nullable
+    @Override
+    public JComponent createComponent() {
+        return panel;
+    }
+
+    @Override
+    public boolean isModified() {
+        return !textFieldDotExecutable.getText().equals(PlantUmlSettings.getInstance().getDotExecutable());
+    }
+
+    @Override
+    public void apply() throws ConfigurationException {
+        PlantUmlSettings.getInstance().setDotExecutable(textFieldDotExecutable.getText());
+    }
+
+    @Override
+    public void reset() {
+        textFieldDotExecutable.setText(PlantUmlSettings.getInstance().getDotExecutable());
+    }
+
+    @Override
+    public void disposeUIResources() {
+    }
+}

src/org/plantuml/idea/plantuml/PlantUml.java

@@ -2,6 +2,7 @@
 
 import net.sourceforge.plantuml.*;
 import net.sourceforge.plantuml.core.Diagram;
+import org.plantuml.idea.lang.settings.PlantUmlSettings;
 
 import java.io.ByteArrayOutputStream;
 import java.io.File;
@@ -18,6 +19,11 @@ public class PlantUml {
     public static final String TESTDOT = "@startuml\ntestdot\n@enduml";
     public static final String UMLSTART = "@start";
 
+    static {
+        // Make sure settings are loaded and applied before we start rendering.
+        PlantUmlSettings.getInstance();
+    }
+
     public enum ImageFormat {
         PNG {
             @Override