diff options
Diffstat (limited to 'src/android/jar/src/org/qtproject/qt/android/QtRootLayout.java')
-rw-r--r-- | src/android/jar/src/org/qtproject/qt/android/QtRootLayout.java | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/src/android/jar/src/org/qtproject/qt/android/QtRootLayout.java b/src/android/jar/src/org/qtproject/qt/android/QtRootLayout.java new file mode 100644 index 0000000000..3dae587a71 --- /dev/null +++ b/src/android/jar/src/org/qtproject/qt/android/QtRootLayout.java @@ -0,0 +1,98 @@ +// Copyright (C) 2023 The Qt Company Ltd. +// Copyright (C) 2012 BogDan Vatra <bogdan@kde.org> +// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only + +package org.qtproject.qt.android; + +import android.app.Activity; +import android.content.Context; +import android.os.Build; +import android.util.DisplayMetrics; +import android.view.Display; +import android.content.res.Configuration; +import android.view.Surface; + +/** + A layout which corresponds to one Activity, i.e. is the root layout where the top level window + and handles orientation changes. +*/ +public class QtRootLayout extends QtLayout +{ + private int m_activityDisplayRotation = -1; + private int m_ownDisplayRotation = -1; + private int m_nativeOrientation = -1; + private int m_previousRotation = -1; + + public QtRootLayout(Context context) + { + super(context); + } + + public void setActivityDisplayRotation(int rotation) + { + m_activityDisplayRotation = rotation; + } + + public void setNativeOrientation(int orientation) + { + m_nativeOrientation = orientation; + } + + public int displayRotation() + { + return m_ownDisplayRotation; + } + + @Override + protected void onSizeChanged (int w, int h, int oldw, int oldh) + { + Activity activity = (Activity)getContext(); + if (activity == null) + return; + + DisplayMetrics realMetrics = new DisplayMetrics(); + Display display = (Build.VERSION.SDK_INT < Build.VERSION_CODES.R) + ? activity.getWindowManager().getDefaultDisplay() + : activity.getDisplay(); + + if (display == null) + return; + + display.getRealMetrics(realMetrics); + if ((realMetrics.widthPixels > realMetrics.heightPixels) != (w > h)) { + // This is an intermediate state during display rotation. + // The new size is still reported for old orientation, while + // realMetrics contain sizes for new orientation. Setting + // such parameters will produce inconsistent results, so + // we just skip them. + // We will have another onSizeChanged() with normal values + // a bit later. + return; + } + QtDisplayManager.setApplicationDisplayMetrics(activity, w, h); + QtDisplayManager.handleOrientationChanges(activity); + } + + @Override + public void onConfigurationChanged(Configuration configuration) + { + Context context = getContext(); + if (context instanceof Activity) { + Activity activity = (Activity)context; + //if orientation change is betwen invertedPortrait and portrait or + //invertedLandscape and landscape, we do not get sizeChanged callback. + int rotation = QtDisplayManager.getDisplayRotation(activity); + if (isSameSizeForOrientations(rotation, m_previousRotation)) + QtDisplayManager.handleOrientationChanges(activity); + m_previousRotation = rotation; + } + } + + public boolean isSameSizeForOrientations(int r1, int r2) { + return (r1 == r2) || + (r1 == Surface.ROTATION_0 && r2 == Surface.ROTATION_180) + || (r1 == Surface.ROTATION_180 && r2 == Surface.ROTATION_0) + || (r1 == Surface.ROTATION_90 && r2 == Surface.ROTATION_270) + || (r1 == Surface.ROTATION_270 && r2 == Surface.ROTATION_90); + } +} |