Sidebar UI implemented.

src/main/java/org/to/telegramfinalproject/UI/SidebarMenuController.java

@@ -1,11 +1,26 @@
 package org.to.telegramfinalproject.UI;
 
+import javafx.animation.TranslateTransition;
+import javafx.application.Platform;
 import javafx.fxml.FXML;
-import javafx.scene.control.*;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.control.Label;
 import javafx.scene.image.Image;
 import javafx.scene.image.ImageView;
+import javafx.scene.layout.HBox;
+import javafx.scene.layout.Region;
+import javafx.scene.layout.VBox;
+import javafx.util.Duration;
 
-public class  SidebarMenuController {
+import java.net.URL;
+
+public class SidebarMenuController {
+
+    private static final String CSS_PATH = "/org/to/telegramfinalproject/CSS/";
+    private static final String ICON_PATH = "/org/to/telegramfinalproject/Icons/";
+
+    @FXML private VBox sidebarRoot; // fx:id must match FXML
     @FXML private ImageView profileImage;
     @FXML private Label usernameLabel;
 
@@ -18,14 +33,143 @@ public class  SidebarMenuController {
     @FXML private Button telegramFeaturesButton;
     @FXML private Button telegramQnAButton;
 
-    @FXML private ToggleButton nightModeToggle;
+    // Custom Telegram-style toggle
+    @FXML private HBox nightModeToggle;
+    @FXML private Region toggleThumb;
+    @FXML private ImageView nightModeIcon;
+
+    private boolean nightModeOn = false; // start light by default
 
     @FXML
     public void initialize() {
-        Image image = new Image(getClass().getResource("/org/to/telegramfinalproject/Images/profile.png").toExternalForm());
-        profileImage.setImage(image);
+        // Load default profile picture (if present)
+        Image profile = loadImage("/org/to/telegramfinalproject/Images/profile.png");
+        if (profile != null) profileImage.setImage(profile);
 
-        // Called automatically after FXML is loaded
-        usernameLabel.setText("Asal");
+        // Set up handlers and defer theme application until the scene is available
+        setupButtonActions();
+        setupToggleAction();
+
+        // When the scene is set, apply the initial theme (light) and initialize icons/positions
+        sidebarRoot.sceneProperty().addListener((obs, oldScene, newScene) -> {
+            if (newScene != null) {
+                // Apply light theme at startup
+                updateTheme(false);
+
+                // Position the thumb after layout pass (to use actual widths)
+                Platform.runLater(() -> {
+                    double initialX = nightModeOn
+                            ? nightModeToggle.getWidth() - toggleThumb.getWidth() - 4
+                            : 2;
+                    toggleThumb.setTranslateX(initialX);
+                });
+            }
+        });
     }
+
+    private void setupButtonActions() {
+        myProfileButton.setOnAction(e -> openMyProfile());
+        newGroupButton.setOnAction(e -> createNewGroup());
+        newChannelButton.setOnAction(e -> createNewChannel());
+        contactsButton.setOnAction(e -> openContacts());
+        savedMessagesButton.setOnAction(e -> openSavedMessages());
+        settingsButton.setOnAction(e -> openSettings());
+        telegramFeaturesButton.setOnAction(e -> openTelegramFeatures());
+        telegramQnAButton.setOnAction(e -> openTelegramQnA());
+    }
+
+    private void setupToggleAction() {
+        nightModeToggle.setOnMouseClicked(e -> {
+            nightModeOn = !nightModeOn;
+            updateTheme(nightModeOn);
+
+            // animate thumb
+            double targetX = nightModeOn
+                    ? nightModeToggle.getWidth() - toggleThumb.getWidth() - 4
+                    : 2;
+            TranslateTransition tt = new TranslateTransition(Duration.millis(200), toggleThumb);
+            tt.setToX(targetX);
+            tt.play();
+        });
+    }
+
+    /**
+     * Apply theme and swap icons. darkMode == true => apply dark theme (dark background),
+     * and use light (white) icons. darkMode == false => apply light theme and use dark icons.
+     */
+    private void updateTheme(boolean darkMode) {
+        Scene scene = sidebarRoot.getScene();
+        if (scene == null) return; // safety
+
+        // clear & apply the correct stylesheet
+        scene.getStylesheets().clear();
+        String cssFile = darkMode ? "dark_theme.css" : "light_theme.css";
+        URL cssUrl = getClass().getResource(CSS_PATH + cssFile);
+        if (cssUrl != null) {
+            scene.getStylesheets().add(cssUrl.toExternalForm());
+        } else {
+            System.err.println("CSS not found: " + CSS_PATH + cssFile);
+        }
+
+        // Keep toggle's "on" class in sync
+        if (darkMode) {
+            if (!nightModeToggle.getStyleClass().contains("on"))
+                nightModeToggle.getStyleClass().add("on");
+        } else {
+            nightModeToggle.getStyleClass().remove("on");
+        }
+
+        // Icon file suffix mapping:
+        // - For darkMode == true (dark background) we want white icons => use "_light.png"
+        // - For darkMode == false (light background) we want dark icons => use "_dark.png"
+        String iconSuffix = darkMode ? "_light.png" : "_dark.png";
+
+        setIcons(iconSuffix);
+
+        // night mode icon itself (moon)
+        Image moon = loadImage(ICON_PATH + "night_mode" + iconSuffix);
+        if (moon != null) nightModeIcon.setImage(moon);
+    }
+
+    private void setIcons(String suffix) {
+        myProfileButton.setGraphic(makeIcon(ICON_PATH + "my_profile" + suffix));
+        newGroupButton.setGraphic(makeIcon(ICON_PATH + "new_group" + suffix));
+        newChannelButton.setGraphic(makeIcon(ICON_PATH + "new_channel" + suffix));
+        contactsButton.setGraphic(makeIcon(ICON_PATH + "contacts" + suffix));
+        savedMessagesButton.setGraphic(makeIcon(ICON_PATH + "saved_messages" + suffix));
+        settingsButton.setGraphic(makeIcon(ICON_PATH + "settings" + suffix));
+        telegramFeaturesButton.setGraphic(makeIcon(ICON_PATH + "telegram_features" + suffix));
+        telegramQnAButton.setGraphic(makeIcon(ICON_PATH + "telegram_qna" + suffix)); // prefer safe filename
+    }
+
+    private Image loadImage(String path) {
+        URL res = getClass().getResource(path);
+        if (res == null) {
+            System.err.println("Resource not found: " + path);
+            return null;
+        }
+        return new Image(res.toExternalForm());
+    }
+
+    private ImageView makeIcon(String path) {
+        ImageView iv = new ImageView();
+        Image img = loadImage(path);
+        if (img != null) {
+            iv.setImage(img);
+            iv.setFitWidth(22);
+            iv.setFitHeight(22);
+            iv.setPreserveRatio(true);
+        }
+        return iv;
+    }
+
+    // Example button actions
+    private void openMyProfile() { System.out.println("Opening My Profile..."); }
+    private void createNewGroup() { System.out.println("Creating New Group..."); }
+    private void createNewChannel() { System.out.println("Creating New Channel..."); }
+    private void openContacts() { System.out.println("Opening Contacts..."); }
+    private void openSavedMessages() { System.out.println("Opening Saved Messages..."); }
+    private void openSettings() { System.out.println("Opening Settings..."); }
+    private void openTelegramFeatures() { System.out.println("Opening Telegram Features..."); }
+    private void openTelegramQnA() { System.out.println("Opening Telegram Q&A..."); }
 }

src/main/java/org/to/telegramfinalproject/UI/TelegramApplication.java

@@ -5,7 +5,6 @@ import javafx.application.Application;
 import javafx.fxml.FXMLLoader;
 import javafx.scene.Scene;
 import javafx.stage.Stage;
-import org.to.telegramfinalproject.HelloApplication;
 
 import java.io.IOException;
 
@@ -15,7 +14,7 @@ public class TelegramApplication extends Application {
         FXMLLoader fxmlLoader = new FXMLLoader(TelegramApplication.class.getResource("/org/to/telegramfinalproject/sidebar_menu.fxml"));
         Scene scene = new Scene(fxmlLoader.load(), 1480, 820);
 
-        scene.getStylesheets().add(getClass().getResource("/org/to/telegramfinalproject/CSS/sidebar_menu.css").toExternalForm());
+        scene.getStylesheets().add(getClass().getResource("/org/to/telegramfinalproject/CSS/light_theme.css").toExternalForm());
 
         stage.setTitle("Telegram");
         stage.setScene(scene);

src/main/resources/org/to/telegramfinalproject/CSS/dark_theme.css

@@ -0,0 +1,52 @@
+/* Sidebar buttons */
+.sidebar-btn {
+    -fx-background-color: transparent;
+    -fx-text-fill: white;
+    -fx-font-size: 14px;
+    -fx-pref-width: 230;
+    -fx-alignment: CENTER_LEFT;
+    -fx-padding: 8 0 8 16;
+}
+.sidebar-btn:hover {
+    -fx-background-color: #2f3e50;
+    -fx-cursor: hand;
+}
+
+/* Telegram-style toggle switch */
+.telegram-toggle {
+    -fx-background-color: #555;
+    -fx-background-radius: 15;
+    -fx-padding: 2;
+    -fx-pref-width: 40;
+    -fx-pref-height: 20;
+    -fx-alignment: center-left;
+    -fx-cursor: hand;
+}
+.telegram-toggle.on {
+    -fx-background-color: #4fa8f0;
+}
+.toggle-thumb {
+    -fx-background-color: white;
+    -fx-background-radius: 50%;
+    -fx-pref-width: 16;
+    -fx-pref-height: 16;
+    -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.2), 3, 0, 0, 1);
+}
+
+/* Separator */
+.thin-separator {
+    -fx-background-color: transparent;
+    -fx-padding: 0;
+}
+.thin-separator .line {
+    -fx-border-color: #2e3948; /* Telegram's subtle dark line */
+    -fx-border-width: 0.5px;
+}
+
+/* Theme background & text */
+#sidebarRoot {
+    -fx-background-color: #1b2735; /* dark theme */
+}
+.button, .label {
+    -fx-text-fill: white;
+}

src/main/resources/org/to/telegramfinalproject/CSS/light_theme.css

@@ -0,0 +1,52 @@
+/* Sidebar buttons */
+.sidebar-btn {
+    -fx-background-color: transparent;
+    -fx-text-fill: black;
+    -fx-font-size: 14px;
+    -fx-pref-width: 230;
+    -fx-alignment: CENTER_LEFT;
+    -fx-padding: 8 0 8 16;
+}
+.sidebar-btn:hover {
+    -fx-background-color: #e6e6e6;
+    -fx-cursor: hand;
+}
+
+/* Telegram-style toggle switch */
+.telegram-toggle {
+    -fx-background-color: #aaa;
+    -fx-background-radius: 15;
+    -fx-padding: 2;
+    -fx-pref-width: 40;
+    -fx-pref-height: 20;
+    -fx-alignment: center-left;
+    -fx-cursor: hand;
+}
+.telegram-toggle.on {
+    -fx-background-color: #4fa8f0;
+}
+.toggle-thumb {
+    -fx-background-color: white;
+    -fx-background-radius: 50%;
+    -fx-pref-width: 16;
+    -fx-pref-height: 16;
+    -fx-effect: dropshadow(gaussian, rgba(0,0,0,0.2), 3, 0, 0, 1);
+}
+
+/* Separator */
+.thin-separator {
+    -fx-background-color: transparent;
+    -fx-padding: 0;
+}
+.thin-separator .line {
+    -fx-border-color: #ccc;
+    -fx-border-width: 0.5px;
+}
+
+/* Theme background & text */
+#sidebarRoot {
+    -fx-background-color: white;
+}
+.button, .label {
+    -fx-text-fill: black;
+}

src/main/resources/org/to/telegramfinalproject/sidebar_menu.fxml

@@ -6,9 +6,8 @@
 <?import javafx.scene.layout.*?>
 <?import javafx.scene.control.Separator?>
 
-<VBox fx:id="sidebar" spacing="20" alignment="TOP_LEFT"
+<VBox fx:id="sidebarRoot" spacing="20" alignment="TOP_LEFT"
       prefWidth="250.0"
-      style="-fx-background-color: #1b2735;"
       xmlns="http://javafx.com/javafx/17"
       xmlns:fx="http://javafx.com/fxml"
       fx:controller="org.to.telegramfinalproject.UI.SidebarMenuController">
@@ -17,32 +16,46 @@
         <Insets top="20" left="10" right="10" bottom="10"/>
     </padding>
 
+
     <!-- Profile Section -->
     <VBox alignment="TOP_LEFT" spacing="10">
         <padding>
             <Insets top="10" left="10" bottom="0" right="0"/>
         </padding>
         <ImageView fx:id="profileImage" fitWidth="80" fitHeight="80" pickOnBounds="true" preserveRatio="true"/>
-        <Label fx:id="usernameLabel" text="Asal Lotfi" textFill="white" style="-fx-font-size: 14px; -fx-font-weight: bold;"/>
+        <Label fx:id="usernameLabel" text="   Asal Lotfi" textFill="white" style="-fx-font-size: 14px; -fx-font-weight: bold;"/>
     </VBox>
 
-    <Separator prefWidth="200"/>
-
     <!-- Menu Buttons -->
     <VBox spacing="8" alignment="TOP_LEFT">
-        <Button fx:id="btnMyProfile" text="  My Profile" styleClass="sidebar-btn"/>
-        <Button fx:id="btnNewGroup" text="  New Group" styleClass="sidebar-btn"/>
-        <Button fx:id="btnNewChannel" text="  New Channel" styleClass="sidebar-btn"/>
-        <Button fx:id="btnContacts" text="  Contacts" styleClass="sidebar-btn"/>
-        <Button fx:id="btnCalls" text="  Calls" styleClass="sidebar-btn"/>
-        <Button fx:id="btnSavedMessages" text="  Saved Messages" styleClass="sidebar-btn"/>
-        <Button fx:id="btnSettings" text="  Settings" styleClass="sidebar-btn"/>
+
+        <!-- Thin Telegram-style line -->
+        <Separator orientation="HORIZONTAL" styleClass="thin-separator" />
+
+        <Button fx:id="myProfileButton" text="  My Profile" styleClass="sidebar-btn"/>
+
+        <!-- Thin Telegram-style line -->
+        <Separator orientation="HORIZONTAL" styleClass="thin-separator" />
+
+        <Button fx:id="newGroupButton" text="  New Group" styleClass="sidebar-btn"/>
+        <Button fx:id="newChannelButton" text="  New Channel" styleClass="sidebar-btn"/>
+        <Button fx:id="contactsButton" text="  Contacts" styleClass="sidebar-btn"/>
+        <Button fx:id="savedMessagesButton" text="  Saved Messages" styleClass="sidebar-btn"/>
+        <Button fx:id="settingsButton" text="  Settings" styleClass="sidebar-btn"/>
+        <Button fx:id="telegramFeaturesButton" text="  Telegram Features" styleClass="sidebar-btn"/>
+        <Button fx:id="telegramQnAButton" text="  Telegram Q&amp;A" styleClass="sidebar-btn"/>
 
         <!-- Night Mode Toggle -->
         <HBox spacing="10" alignment="CENTER_LEFT">
+            <padding>
+                <!-- Match button's left padding -->
+                <Insets left="15"/>
+            </padding>
+            <ImageView fx:id="nightModeIcon" fitWidth="22" fitHeight="22" pickOnBounds="true" preserveRatio="true"/>
             <Label text="Night Mode" textFill="white" style="-fx-font-size: 13px;"/>
-            <ToggleButton fx:id="nightModeToggle"/>
+            <HBox fx:id="nightModeToggle" styleClass="telegram-toggle">
+                <Region fx:id="toggleThumb" styleClass="toggle-thumb"/>
+            </HBox>
         </HBox>
     </VBox>
-
-</VBox>
+</VBox>