Line data    Source code

       1              : /*
       2              :  * SPDX-License-Identifier: GPL-3.0-only
       3              :  * MuseScore-CLA-applies
       4              :  *
       5              :  * MuseScore Studio
       6              :  * Music Composition & Notation
       7              :  *
       8              :  * Copyright (C) 2026 MuseScore Limited and others
       9              :  *
      10              :  * This program is free software: you can redistribute it and/or modify
      11              :  * it under the terms of the GNU General Public License version 3 as
      12              :  * published by the Free Software Foundation.
      13              :  *
      14              :  * This program is distributed in the hope that it will be useful,
      15              :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      16              :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      17              :  * GNU General Public License for more details.
      18              :  *
      19              :  * You should have received a copy of the GNU General Public License
      20              :  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
      21              :  */
      22              : 
      23              : #include "uicontextconfiguration.h"
      24              : 
      25              : #include <QScreen>
      26              : #include <QApplication>
      27              : #include <QOperatingSystemVersion>
      28              : 
      29              : using namespace muse::ui;
      30              : 
      31              : constexpr double DEFAULT_DPI = 96;
      32              : 
      33            0 : QScreen* UiContextConfiguration::screen() const
      34              : {
      35            0 :     if (!mainWindow()) {
      36            0 :         return QApplication::primaryScreen();
      37              :     }
      38            0 :     return mainWindow()->screen();
      39              : }
      40              : 
      41            0 : double UiContextConfiguration::guiScaling() const
      42              : {
      43            0 :     const QScreen* s = screen();
      44            0 :     return s ? s->devicePixelRatio() : 1;
      45              : }
      46              : 
      47            0 : double UiContextConfiguration::physicalDpi() const
      48              : {
      49            0 :     if (configuration()->customPhysicalDotsPerInch()) {
      50            0 :         return configuration()->customPhysicalDotsPerInch().value();
      51              :     }
      52              : 
      53            0 :     const QScreen* screen = this->screen();
      54            0 :     if (!screen) {
      55            0 :         return DEFAULT_DPI;
      56              :     }
      57              : 
      58            0 :     auto physicalSize = screen->physicalSize();
      59              :     // Work around xrandr reporting a 1x1mm size if
      60              :     // the screen doesn't have a valid physical size
      61            0 :     if (physicalSize.height() <= 1 && physicalSize.width() <= 1) {
      62            0 :         return DEFAULT_DPI;
      63              :     }
      64              : 
      65              : #ifdef Q_OS_WIN
      66              :     //! NOTE: copied from MU3, `MuseScore::MuseScore()`
      67              :     if (QOperatingSystemVersion::current() <= QOperatingSystemVersion(QOperatingSystemVersion::Windows, 7)) {
      68              :         return screen->logicalDotsPerInch() * screen->devicePixelRatio();
      69              :     }
      70              : #endif
      71            0 :     return screen->physicalDotsPerInch();
      72              : }
      73              : 
      74            0 : double UiContextConfiguration::logicalDpi() const
      75              : {
      76            0 :     const QScreen* screen = this->screen();
      77            0 :     if (!screen) {
      78            0 :         return DEFAULT_DPI;
      79              :     }
      80              : 
      81            0 :     return screen->logicalDotsPerInch();
      82              : }