| /* | |
| * Copyright (c) 2016, 2021, Oracle and/or its affiliates. All rights reserved. | |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | |
| * | |
| * This code is free software; you can redistribute it and/or modify it | |
| * under the terms of the GNU General Public License version 2 only, as | |
| * published by the Free Software Foundation. Oracle designates this | |
| * particular file as subject to the "Classpath" exception as provided | |
| * by Oracle in the LICENSE file that accompanied this code. | |
| * | |
| * This code is distributed in the hope that it will be useful, but WITHOUT | |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| * version 2 for more details (a copy is included in the LICENSE file that | |
| * accompanied this code). | |
| * | |
| * You should have received a copy of the GNU General Public License version | |
| * 2 along with this work; if not, write to the Free Software Foundation, | |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| * | |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| * or visit www.oracle.com if you need additional information or have any | |
| * questions. | |
| */ | |
| #include "systemScale.h" | |
| #include <stdlib.h> | |
| static int getScale(const char *name) { | |
| char *uiScale = getenv(name); | |
| if (uiScale != NULL) { | |
| double scale = strtod(uiScale, NULL); | |
| if (scale < 1) { | |
| return -1; | |
| } | |
| return (int) scale; | |
| } | |
| return -1; | |
| } | |
| double getNativeScaleFactor() { | |
| static int scale = -2.0; | |
| if (scale == -2) { | |
| scale = getScale("J2D_UISCALE"); | |
| } | |
| if (scale > 0) { | |
| return scale; | |
| } | |
| return getScale("GDK_SCALE"); | |
| } |