From b8b71201636430ecc375149d58164ed1987e30d5 Mon Sep 17 00:00:00 2001
From: John Hendrikx <hjohn@xs4all.nl>
Date: Fri, 21 Jun 2019 00:45:25 +0200
Subject: Add Java example using JavaFX and JNA

---
 libmpv/java/src/main/java/SampleMPVPlayer.java | 70 ++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 libmpv/java/src/main/java/SampleMPVPlayer.java

(limited to 'libmpv/java/src/main/java/SampleMPVPlayer.java')

diff --git a/libmpv/java/src/main/java/SampleMPVPlayer.java b/libmpv/java/src/main/java/SampleMPVPlayer.java
new file mode 100644
index 0000000..429cd90
--- /dev/null
+++ b/libmpv/java/src/main/java/SampleMPVPlayer.java
@@ -0,0 +1,70 @@
+import com.sun.jna.Pointer;
+import com.sun.jna.platform.win32.User32;
+import com.sun.jna.platform.win32.WinDef;
+import com.sun.jna.ptr.LongByReference;
+
+import javafx.application.Application;
+import javafx.scene.Scene;
+import javafx.scene.control.Button;
+import javafx.scene.paint.Color;
+import javafx.stage.Modality;
+import javafx.stage.Stage;
+import javafx.stage.StageStyle;
+
+public class SampleMPVPlayer extends Application {
+  private static final String STAGE_TITLE = "MPV video demo";
+
+  public static void main(String[] args) {
+    Application.launch(args);
+  }
+
+  @Override
+  public void start(Stage stage) throws Exception {
+    stage.setTitle(STAGE_TITLE);
+    stage.show();
+
+    Stage childStage = new Stage(StageStyle.TRANSPARENT);
+    Button button = new Button("Hello World");
+    Scene scene = new Scene(button);
+
+    button.setStyle("-fx-font-size: 50px");
+    button.setOpacity(0.5);
+
+    scene.setFill(Color.TRANSPARENT);
+
+    childStage.initModality(Modality.APPLICATION_MODAL);
+    childStage.initOwner(stage);
+    childStage.setScene(scene);
+    childStage.show();
+
+    play("https://www.youtube.com/watch?v=sFXGrTng0gQ");
+  }
+
+  private void play(String url) {
+    // Get interface to MPV DLL
+    MPV mpv = MPV.INSTANCE;
+
+    // Create MPV player instance
+    long handle = mpv.mpv_create();
+
+    // Get the native window id by looking up a window by title:
+    WinDef.HWND hwnd = User32.INSTANCE.FindWindow(null, STAGE_TITLE);
+
+    // Tell MPV on which window video should be displayed:
+    LongByReference longByReference =
+        new LongByReference(Pointer.nativeValue(hwnd.getPointer()));
+    mpv.mpv_set_option(handle, "wid", 4, longByReference.getPointer());
+
+    int error;
+
+    // Initialize MPV after setting basic options:
+    if((error = mpv.mpv_initialize(handle)) != 0) {
+      throw new IllegalStateException("Initialization failed with error: " + error);
+    }
+
+    // Load and play a video:
+    if((error = mpv.mpv_command(handle, new String[] {"loadfile", url})) != 0) {
+      throw new IllegalStateException("Playback failed with error: " + error);
+    }
+  }
+}
-- 
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