platform/android: Add menu options to capture a screenshot as the library preview image

Former-commit-id: 59d0858d93cb2681bb3e4230c44858a2fe28f208
Former-commit-id: 41b094d2f7971c3ef9e53234bd0c65e56ef99e20

platform/android/app/src/main/java/com/mrmichel/rustdroid_emu/ui/EmulatorActivity.java

@@ -369,7 +369,9 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
         } else {
             int romId = getIntent().getIntExtra("romId", -1);
             if (-1 != romId) {
-                this.romMetadata = RomManager.getInstance(this).getRomMetadata(romId);
+                RomManager romManager = RomManager.getInstance(this);
+                romManager.updateLastPlayed(romId);
+                this.romMetadata = romManager.getRomMetadata(romId);
 
                 byte[] romData;
                 try {
@@ -404,6 +406,9 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
             case R.id.action_save_snapshot:
                 doSaveSnapshot();
                 return true;
+            case R.id.action_set_library_image:
+                doSaveScreenshotToLibrary();
+                return true;
             case R.id.action_settings:
                 Intent intent = new Intent(this, SettingsActivity.class);
                 startActivity(intent);
@@ -436,6 +441,20 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
     protected void onDestroy() {
         super.onDestroy();
         pauseEmulation();
+
+        if (this.romMetadata != null) {
+            if (this.romMetadata.getScreenshot() == null) {
+                // Save current screenshot
+                Bitmap screenshot = Bitmap.createBitmap(
+                        emulator.getFrameBuffer(),
+                        240,
+                        160,
+                        Bitmap.Config.RGB_565);
+
+                RomManager.getInstance(this).updateScreenshot(this.romMetadata.getId(), screenshot);
+
+            }
+        }
         killThreads();
     }
 
@@ -454,6 +473,26 @@ public class EmulatorActivity extends AppCompatActivity implements View.OnClickL
         audioPlayer.play();
     }
 
+    public void doSaveScreenshotToLibrary() {
+        if (!isEmulatorRunning() || null == this.romMetadata) {
+            Toast.makeText(this, "No game is running!", Toast.LENGTH_LONG).show();
+            return;
+        }
+
+        pauseEmulation();
+
+        Bitmap screenshot = Bitmap.createBitmap(
+                emulator.getFrameBuffer(),
+                240,
+                160,
+                Bitmap.Config.RGB_565);
+
+        RomManager.getInstance(this).updateScreenshot(this.romMetadata.getId(), screenshot);
+
+
+        resumeEmulation();
+    }
+
     public void doSaveSnapshot() {
         if (!isEmulatorRunning()) {
             Toast.makeText(this, "No game is running!", Toast.LENGTH_LONG).show();

platform/android/app/src/main/java/com/mrmichel/rustdroid_emu/ui/library/RomListActivity.java

@@ -105,6 +105,7 @@ public class RomListActivity extends AppCompatActivity {
             case R.id.action_play:
                 romManager.updateLastPlayed(entry.getId());
                 Util.startEmulator(this, this.bios, entry.getId());
+                this.itemAdapter.notifyDataSetChanged();
                 return true;
             case R.id.action_delete:
                 romManager.deleteRomMetadata(itemAdapter.getItem(menuInfo.position));
@@ -214,6 +215,7 @@ public class RomListActivity extends AppCompatActivity {
 
                     Log.d(TAG, "found bitmap");
                     romManager.updateScreenshot(romId, bitmap);
+
                     break;
                 case REQUEST_IMPORT_SAVE:
                     try {
@@ -234,6 +236,7 @@ public class RomListActivity extends AppCompatActivity {
 
             }
 
+            this.itemAdapter.notifyDataSetChanged();
             mGridView.setAdapter(new RomListItemAdapter(this, romManager.getAllRomMetaData()));
             mGridView.invalidate();
 

platform/android/app/src/main/res/layout-land/content_emulator.xml

@@ -3,6 +3,7 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
+    android:keepScreenOn="true"
     android:background="@color/gbaBackground"
     android:layout_width="match_parent"
     android:layout_height="match_parent">

platform/android/app/src/main/res/layout/content_emulator.xml

@@ -2,6 +2,7 @@
 <androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
+    android:keepScreenOn="true"
     android:background="@color/gbaBackground"
     android:layout_width="match_parent"
     android:layout_height="match_parent">

platform/android/app/src/main/res/menu/menu_emulator.xml

@@ -30,10 +30,15 @@
     <!--        </menu>-->
     <!--    </item>-->
 
+    <item
+        android:id="@+id/action_set_library_image"
+        android:icon="@android:drawable/ic_menu_camera"
+        android:title="@string/action_set_library_image" />
+
     <item
         android:id="@+id/action_settings"
-        android:orderInCategory="100"
         android:menuCategory="system"
+        android:orderInCategory="100"
         android:title="@string/action_settings"
         app:showAsAction="never" />
 

platform/android/app/src/main/res/values/strings.xml

@@ -14,6 +14,7 @@
     <string name="action_set_screenshot">Set Image</string>
 
     <string name="action_delete">Delete</string>
+    <string name="action_set_library_image"> Take screenshot for library view </string>
 
     <string name="title_activity_snapshot">Snapshot Manager</string>