add_rotate_watchface_button_hybridhr (#2408)

This adds a button which rotates the selected watchface by 90 degrees counter-clockwise to the hybridqr.
I did not manage to fix the autoorientation.

Reviewed-on: https://codeberg.org/Freeyourgadget/Gadgetbridge/pulls/2408
Co-authored-by: HelloCodeberg <hellocodeberg@noreply.codeberg.org>
Co-committed-by: HelloCodeberg <hellocodeberg@noreply.codeberg.org>

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/qhybrid/HybridHRWatchfaceDesignerActivity.java

@@ -155,6 +155,9 @@ public class HybridHRWatchfaceDesignerActivity extends AbstractGBActivity implem
         findViewById(R.id.button_set_background).setOnClickListener(this);
         findViewById(R.id.button_add_widget).setOnClickListener(this);
         findViewById(R.id.button_watchface_settings).setOnClickListener(this);
+        findViewById(R.id.watchface_rotate_left).setOnClickListener(this);
+        findViewById(R.id.watchface_rotate_right).setOnClickListener(this);
+
     }
 
     @Override
@@ -236,6 +239,18 @@ public class HybridHRWatchfaceDesignerActivity extends AbstractGBActivity implem
         } else if (v.getId() == R.id.button_watchface_settings) {
             showWatchfaceSettingsPopup();
         }
+        else if (v.getId() == R.id.watchface_rotate_left) {
+            if (selectedBackgroundImage != null) {
+                selectedBackgroundImage = BitmapUtil.rotateImage(selectedBackgroundImage, -90);
+                renderWatchfacePreview();
+            }
+        }
+        else if (v.getId() == R.id.watchface_rotate_right) {
+            if (selectedBackgroundImage != null) {
+                selectedBackgroundImage = BitmapUtil.rotateImage(selectedBackgroundImage, 90);
+                renderWatchfacePreview();
+            }
+        }
     }
 
     @Override

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/util/BitmapUtil.java

@@ -21,6 +21,7 @@ import android.graphics.Bitmap;
 import android.graphics.Canvas;
 import android.graphics.ColorMatrix;
 import android.graphics.ColorMatrixColorFilter;
+import android.graphics.Matrix;
 import android.graphics.Paint;
 import android.graphics.PorterDuff;
 import android.graphics.PorterDuffXfermode;
@@ -177,4 +178,16 @@ public class BitmapUtil {
         // Return the circular bitmap
         return dstBitmap;
     }
+
+    /**
+     * Rotates a given Bitmap
+     * @param bitmap input bitmap
+     * @param degree int Degree of rotation
+     * @return new bitmap
+     */
+    public static Bitmap rotateImage(Bitmap bitmap, int degree) {
+        Matrix matrix = new Matrix();
+        matrix.postRotate(degree);
+        return Bitmap.createBitmap(bitmap, 0, 0, bitmap.getWidth(), bitmap.getHeight(), matrix, true);
+    }
 }

app/src/main/res/layout/activity_hybridhr_watchface_designer.xml

@@ -42,17 +42,37 @@
             android:text="@string/button_watchface_edit_name" />
     </RelativeLayout>
 
-    <RelativeLayout
+    <LinearLayout
         android:layout_width="match_parent"
-        android:layout_height="wrap_content">
+        android:layout_height="match_parent"
+        android:orientation="horizontal">
 
         <ImageView
             android:id="@+id/watchface_invert_colors"
             android:layout_width="40dp"
             android:layout_height="40dp"
-            android:layout_alignStart="@+id/watchface_preview_layout"
             app:srcCompat="@drawable/ic_invert_colors" />
 
+        <ImageView
+            android:id="@+id/watchface_rotate_left"
+            android:layout_width="40dp"
+            android:layout_height="40dp"
+            android:layout_alignStart="@+id/watchface_invert_colors"
+            app:srcCompat="@drawable/ic_rotate_left" />
+
+        <ImageView
+            android:id="@+id/watchface_rotate_right"
+            android:layout_width="40dp"
+            android:layout_height="40dp"
+            android:layout_alignStart="@+id/watchface_rotate_left"
+            android:rotationY="180"
+            app:srcCompat="@drawable/ic_rotate_left" />
+    </LinearLayout>
+
+    <RelativeLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content">
+
         <RelativeLayout
             android:id="@+id/watchface_preview_layout"
             android:layout_width="match_parent"