Implement basic functionality

resources/META-INF/plugin.xml

@@ -18,6 +18,14 @@
     <idea-version since-build="145.0"/>
 
     <actions>
-        <!-- Add your actions here -->
+        <action id="randomness.InsertNumber" class="com.fwdekker.randomness.insertion.InsertRandomNumber"
+                text="Insert Random Number" description="Inserts a random number at the caret."/>
+        <action id="randomness.NumberSettings" class="com.fwdekker.randomness.settings.NumberSettingsAction"
+                text="Insert Random Number Settings" description="Settings for Insert Random Number."/>
+
+        <action id="randomness.InsertString" class="com.fwdekker.randomness.insertion.InsertRandomString"
+                text="Insert Random String" description="Inserts a random string at the caret."/>
+        <action id="randomness.StringSettings" class="com.fwdekker.randomness.settings.StringSettingsAction"
+                text="Insert Random String Settings" description="Settings for Insert Random String."/>
     </actions>
 </idea-plugin>

src/com/fwdekker/randomness/insertion/InsertRandomNumber.java

@@ -0,0 +1,69 @@
+package com.fwdekker.randomness.insertion;
+
+import java.util.Random;
+
+
+/**
+ * Generates a random number based on adjustable parameters.
+ */
+public class InsertRandomNumber extends InsertRandomSomething {
+    private static final Random RANDOM = new Random();
+
+    /**
+     * The minimum value to be generated, inclusive.
+     */
+    private static int minValue = 0;
+    /**
+     * The maximum value to be generated, inclusive.
+     */
+    private static int maxValue = 1000;
+
+
+    /**
+     * Returns a random number between the minimum and maximum value, inclusive.
+     *
+     * @return a random number between the minimum and maximum value, inclusive
+     */
+    @Override
+    String generateString() {
+        final int range = maxValue - minValue;
+        return Integer.toString(minValue + RANDOM.nextInt(range + 1));
+    }
+
+
+    /**
+     * Returns the minimum value to be generated, inclusive.
+     *
+     * @return the minimum value to be generated, inclusive
+     */
+    public static int getMinValue() {
+        return minValue;
+    }
+
+    /**
+     * Sets the minimum value to be generated.
+     *
+     * @param minValue the minimum value to be generated, inclusive
+     */
+    public static void setMinValue(final int minValue) {
+        InsertRandomNumber.minValue = minValue;
+    }
+
+    /**
+     * Returns the maximum value to be generated, inclusive.
+     *
+     * @return the maximum value to be generated, inclusive
+     */
+    public static int getMaxValue() {
+        return maxValue;
+    }
+
+    /**
+     * Sets the maximum value to be generated.
+     *
+     * @param maxValue the maximum value to be generated, inclusive
+     */
+    public static void setMaxValue(final int maxValue) {
+        InsertRandomNumber.maxValue = maxValue;
+    }
+}

src/com/fwdekker/randomness/insertion/InsertRandomSomething.java

@@ -0,0 +1,43 @@
+package com.fwdekker.randomness.insertion;
+
+import com.intellij.openapi.actionSystem.AnAction;
+import com.intellij.openapi.actionSystem.AnActionEvent;
+import com.intellij.openapi.actionSystem.CommonDataKeys;
+import com.intellij.openapi.command.WriteCommandAction;
+import com.intellij.openapi.editor.Document;
+import com.intellij.openapi.editor.Editor;
+import com.intellij.openapi.editor.SelectionModel;
+import com.intellij.openapi.project.Project;
+
+
+/**
+ * Inserts a randomly generated string at the position of the event's editor's caret.
+ */
+public abstract class InsertRandomSomething extends AnAction {
+    /**
+     * Inserts the string generated by {@link #generateString()} at the caret in the editor.
+     *
+     * @param event
+     */
+    @Override
+    public void actionPerformed(final AnActionEvent event) {
+        final Project project = event.getData(CommonDataKeys.PROJECT);
+        final Editor editor = event.getData(CommonDataKeys.EDITOR);
+        final Document document = editor.getDocument();
+        final SelectionModel selectionModel = editor.getSelectionModel();
+
+        final int start = selectionModel.getSelectionStart();
+        final int end = selectionModel.getSelectionEnd();
+
+        final Runnable runnable = () -> document.replaceString(start, end, generateString());
+        WriteCommandAction.runWriteCommandAction(project, runnable);
+    }
+
+
+    /**
+     * Generates a random string.
+     *
+     * @return a random string
+     */
+    abstract String generateString();
+}

src/com/fwdekker/randomness/insertion/InsertRandomString.java

@@ -0,0 +1,78 @@
+package com.fwdekker.randomness.insertion;
+
+import java.util.Random;
+
+
+/**
+ * Generates random alphanumerical strings based on adjustable parameters.
+ */
+public final class InsertRandomString extends InsertRandomSomething {
+    private static final Random RANDOM = new Random();
+    /**
+     * The characters that may be used in generated strings.
+     */
+    private static final String ALPHABET = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+
+    /**
+     * The minimum length of a generated string, inclusive.
+     */
+    private static int minLength = 10;
+    /**
+     * The maximum length of a generated string, inclusive.
+     */
+    private static int maxLength = 10;
+
+
+    /**
+     * Returns a random string of alphanumerical characters.
+     *
+     * @return a random string of alphanumerical characters
+     */
+    @Override
+    String generateString() {
+        final int length = minLength + RANDOM.nextInt(maxLength - minLength + 1);
+
+        final char[] text = new char[length];
+        for (int i = 0; i < length; i++) {
+            text[i] = ALPHABET.charAt(RANDOM.nextInt(ALPHABET.length()));
+        }
+        return "\"" + new String(text) + "\"";
+    }
+
+
+    /**
+     * Returns the minimum length of a generated string, inclusive.
+     *
+     * @return the minimum length of a generated string, inclusive
+     */
+    public static int getMinLength() {
+        return minLength;
+    }
+
+    /**
+     * Sets the minimum length of a generated string, inclusive.
+     *
+     * @param minLength the minimum length of a generated string, inclusive
+     */
+    public static void setMinLength(final int minLength) {
+        InsertRandomString.minLength = minLength;
+    }
+
+    /**
+     * Returns the maximum length of a generated string, inclusive.
+     *
+     * @return the maximum length of a generated string, inclusive
+     */
+    public static int getMaxLength() {
+        return maxLength;
+    }
+
+    /**
+     * Sets the maximum length of a generated string, inclusive.
+     *
+     * @param maxLength the maximum length of a generated string, inclusive
+     */
+    public static void setMaxLength(final int maxLength) {
+        InsertRandomString.maxLength = maxLength;
+    }
+}

src/com/fwdekker/randomness/settings/NumberSettingsAction.java

@@ -0,0 +1,21 @@
+package com.fwdekker.randomness.settings;
+
+import com.intellij.openapi.actionSystem.AnAction;
+import com.intellij.openapi.actionSystem.AnActionEvent;
+
+
+/**
+ * Controller for random number generation settings.
+ */
+public class NumberSettingsAction extends AnAction {
+    /**
+     * Shows a {@link NumberSettingsDialog}.
+     */
+    @Override
+    public void actionPerformed(final AnActionEvent e) {
+        final NumberSettingsDialog dialog = new NumberSettingsDialog();
+        dialog.setTitle("Insert Random Number Settings");
+        dialog.pack();
+        dialog.setVisible(true);
+    }
+}

src/com/fwdekker/randomness/settings/NumberSettingsDialog.form

@@ -0,0 +1,98 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="com.fwdekker.randomness.settings.NumberSettingsDialog">
+  <grid id="cbd77" binding="contentPane" layout-manager="GridLayoutManager" row-count="2" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+    <margin top="10" left="10" bottom="10" right="10"/>
+    <constraints>
+      <xy x="48" y="54" width="436" height="297"/>
+    </constraints>
+    <properties/>
+    <border type="none"/>
+    <children>
+      <grid id="94766" layout-manager="GridLayoutManager" row-count="1" 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>
+          <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="1" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties/>
+        <border type="none"/>
+        <children>
+          <hspacer id="98af6">
+            <constraints>
+              <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+            </constraints>
+          </hspacer>
+          <grid id="9538f" layout-manager="GridLayoutManager" row-count="1" column-count="2" same-size-horizontally="true" same-size-vertically="false" hgap="-1" vgap="-1">
+            <margin top="0" left="0" bottom="0" right="0"/>
+            <constraints>
+              <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties/>
+            <border type="none"/>
+            <children>
+              <component id="e7465" class="javax.swing.JButton" binding="buttonOK">
+                <constraints>
+                  <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+                </constraints>
+                <properties>
+                  <text value="OK"/>
+                </properties>
+              </component>
+              <component id="5723f" class="javax.swing.JButton" binding="buttonCancel">
+                <constraints>
+                  <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+                </constraints>
+                <properties>
+                  <text value="Cancel"/>
+                </properties>
+              </component>
+            </children>
+          </grid>
+        </children>
+      </grid>
+      <grid id="e3588" 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>
+          <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties/>
+        <border type="none"/>
+        <children>
+          <component id="d1dad" class="javax.swing.JTextField" binding="minValue">
+            <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>
+          <component id="f1509" class="javax.swing.JTextField" binding="maxValue">
+            <constraints>
+              <grid row="1" 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>
+              <text value=""/>
+            </properties>
+          </component>
+          <component id="62ab2" 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="Minimum value"/>
+            </properties>
+          </component>
+          <component id="56ad0" class="javax.swing.JLabel">
+            <constraints>
+              <grid row="1" 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="Maximum value"/>
+            </properties>
+          </component>
+        </children>
+      </grid>
+    </children>
+  </grid>
+</form>

src/com/fwdekker/randomness/settings/NumberSettingsDialog.java

@@ -0,0 +1,63 @@
+package com.fwdekker.randomness.settings;
+
+import com.fwdekker.randomness.insertion.InsertRandomNumber;
+
+import javax.swing.*;
+import java.awt.event.KeyEvent;
+import java.awt.event.WindowAdapter;
+import java.awt.event.WindowEvent;
+
+
+/**
+ * Dialog for settings of random number generation.
+ */
+public class NumberSettingsDialog extends JDialog {
+    private JPanel contentPane;
+    private JButton buttonOK;
+    private JButton buttonCancel;
+    private JTextField minValue;
+    private JTextField maxValue;
+
+
+    /**
+     * Constructs a new {@code NumberSettingsDialog}.
+     */
+    public NumberSettingsDialog() {
+        setContentPane(contentPane);
+        setModal(true);
+        getRootPane().setDefaultButton(buttonOK);
+
+        buttonOK.addActionListener(e -> onOK());
+        buttonCancel.addActionListener(e -> onCancel());
+
+        // Call onCancel() when cross is clicked
+        setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
+        addWindowListener(new WindowAdapter() {
+            public void windowClosing(WindowEvent e) {
+                onCancel();
+            }
+        });
+
+        // Call onCancel() on ESCAPE
+        contentPane.registerKeyboardAction(
+                e -> onCancel(),
+                KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
+
+        minValue.setText(Integer.toString(InsertRandomNumber.getMinValue()));
+        maxValue.setText(Integer.toString(InsertRandomNumber.getMaxValue()));
+    }
+
+
+    private void onOK() {
+        final int newMinValue = Integer.parseInt(minValue.getText());
+        final int newMaxValue = Integer.parseInt(maxValue.getText());
+        InsertRandomNumber.setMinValue(newMinValue);
+        InsertRandomNumber.setMaxValue(newMaxValue);
+
+        dispose();
+    }
+
+    private void onCancel() {
+        dispose();
+    }
+}