add component structure

Author: vincenzopalazzo

.gitignore

@@ -3,3 +3,7 @@
 
 # Ignore Gradle build output directory
 build
+
+#IntelliJ
+.idea
+*.iml

build.gradle.kts

@@ -25,5 +25,5 @@ dependencies {
     implementation("com.google.guava:guava:28.1-jre")
 
     // Use JUnit test framework
-    testImplementation("junit:junit:4.12")
+    implementation(files("$projectDir/devlib/material-ui-swing-1.1.1-rc2.jar"))
 }

devlib/material-ui-swing-1.1.1-rc2.jar

@@ -0,0 +1,55 @@
+package io.vincenzopalazzo.placeholder;
+
+import javax.swing.*;
+import javax.swing.border.Border;
+import java.awt.*;
+
+public class JTextFieldPlaceholder extends JPanel {
+
+    protected JLabel iconContainer;
+    protected JLabel placeholder;
+    private JSeparator separator;
+    protected JTextField textField;
+
+    public JTextFieldPlaceholder() {
+        super(new FlowLayout());
+        initView();
+        initStyle();
+    }
+
+    protected void initView(){
+        iconContainer = new JLabel();
+        this.add(iconContainer);
+
+        placeholder = new JLabel();
+        separator = new JSeparator(JSeparator.VERTICAL);
+        placeholder.setBorder(BorderFactory.createEmptyBorder(5,0,5,2));
+        this.add(placeholder);
+        this.add(separator);
+
+        textField = new JTextField();
+        textField.setMinimumSize(new Dimension(50, 20));
+        textField.setPreferredSize(new Dimension(50, 20));
+        textField.setSize(new Dimension(50, 20));
+        super.add(textField);
+    }
+
+    protected void initStyle(){
+        setBackground(textField.getBackground());
+        placeholder.setBackground(getBackground());
+        iconContainer.setBackground(getBackground());
+    }
+
+    public JTextFieldPlaceholder setIcon(Icon icon){
+        if(icon == null) throw new IllegalArgumentException("icon null");
+        iconContainer.setIcon(icon);
+        return this;
+    }
+
+    public JTextFieldPlaceholder setText(String text){
+        if(text == null || text.isEmpty()) throw new IllegalArgumentException("Invalid text");
+        placeholder.setText(text);
+        return this;
+    }
+
+}

mock/lat_Lon.pdf

@@ -0,0 +1,57 @@
+package io.vincenzopalazzo.placeholder;
+
+import jiconfont.icons.google_material_design_icons.GoogleMaterialDesignIcons;
+import mdlaf.MaterialLookAndFeel;
+import mdlaf.themes.JMarsDarkTheme;
+import mdlaf.utils.MaterialColors;
+import mdlaf.utils.MaterialImageFactory;
+
+import javax.swing.*;
+import java.awt.*;
+
+public class DemoFrame extends JFrame {
+
+    static {
+        try {
+            UIManager.setLookAndFeel(new MaterialLookAndFeel(new JMarsDarkTheme()));
+        } catch (UnsupportedLookAndFeelException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private JPanel container;
+    private JTextFieldPlaceholder textFieldPlaceholder;
+
+    public void initView() {
+        initComponent();
+
+        super.setContentPane(container);
+        super.setSize(new Dimension(400, 400));
+        super.setTitle("New Swing component from @vincenzopalazzo");
+        super.setLocationRelativeTo(null);
+        super.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        super.setVisible(true);
+    }
+
+    public void initComponent() {
+        container = new JPanel();
+        textFieldPlaceholder = new JTextFieldPlaceholder();
+        textFieldPlaceholder.setIcon(MaterialImageFactory.getInstance().getImage(
+                GoogleMaterialDesignIcons.BOOKMARK,
+                MaterialColors.COSMO_DARK_GRAY
+        ))
+        .setText("Lan/Lon")
+        .setVisible(true);
+        container.add(textFieldPlaceholder);
+    }
+
+    public static void main(String[] args) {
+        SwingUtilities.invokeLater(new Runnable() {
+            @Override
+            public void run() {
+                DemoFrame demoFrame = new DemoFrame();
+                demoFrame.initView();
+            }
+        });
+    }
+}