Add Notification window to the Launcher (#3595)

apps/OpenSpace/ext/launcher/CMakeLists.txt

@@ -28,6 +28,7 @@ set(HEADER_FILES
   include/backgroundimage.h
   include/filesystemaccess.h
   include/launcherwindow.h
+  include/notificationwindow.h
   include/settingsdialog.h
   include/splitcombobox.h
   include/windowcolors.h
@@ -59,6 +60,7 @@ set(SOURCE_FILES
   src/backgroundimage.cpp
   src/launcherwindow.cpp
   src/filesystemaccess.cpp
+  src/notificationwindow.cpp
   src/settingsdialog.cpp
   src/splitcombobox.cpp
   src/windowcolors.cpp

apps/OpenSpace/ext/launcher/include/notificationwindow.h

@@ -0,0 +1,42 @@
+/*****************************************************************************************
+ *                                                                                       *
+ * OpenSpace                                                                             *
+ *                                                                                       *
+ * Copyright (c) 2014-2025                                                               *
+ *                                                                                       *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this  *
+ * software and associated documentation files (the "Software"), to deal in the Software *
+ * without restriction, including without limitation the rights to use, copy, modify,    *
+ * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to    *
+ * permit persons to whom the Software is furnished to do so, subject to the following   *
+ * conditions:                                                                           *
+ *                                                                                       *
+ * The above copyright notice and this permission notice shall be included in all copies *
+ * or substantial portions of the Software.                                              *
+ *                                                                                       *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,   *
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A         *
+ * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT    *
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF  *
+ * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE  *
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                                         *
+ ****************************************************************************************/
+
+#ifndef __OPENSPACE_UI_LAUNCHER___NOTIFICATIONWINDOW___H__
+#define __OPENSPACE_UI_LAUNCHER___NOTIFICATIONWINDOW___H__
+
+#include <QTextEdit>
+
+#include <openspace/util/httprequest.h>
+#include <memory>
+
+class NotificationWindow final : public QTextEdit {
+Q_OBJECT
+public:
+    explicit NotificationWindow(QWidget* parent);
+
+private:
+    std::unique_ptr<openspace::HttpMemoryDownload> _request;
+};
+
+#endif // __OPENSPACE_UI_LAUNCHER___NOTIFICATIONWINDOW___H__

apps/OpenSpace/ext/launcher/resources/qss/launcher.qss

@@ -119,6 +119,12 @@ LauncherWindow QComboBox#config:focus
 LauncherWindow QPushButton#settings:focus {
   outline: 2px solid rgb(61, 189, 238);
 }
+
+LauncherWindow QTextEdit#notifications {
+  background-color: #242424;
+  color: #d7d7d7;
+}
+
 /*
  * ProfileEdit
  */

apps/OpenSpace/ext/launcher/src/launcherwindow.cpp

@@ -26,6 +26,7 @@
 
 #include "profile/profileedit.h"
 #include "backgroundimage.h"
+#include "notificationwindow.h"
 #include "settingsdialog.h"
 #include "splitcombobox.h"
 #include <openspace/openspace.h>
@@ -45,8 +46,10 @@
 using namespace openspace;
 
 namespace {
-    constexpr int ScreenWidth = 480;
-    constexpr int ScreenHeight = 640;
+    constexpr int MainScreenWidth = 480;
+    constexpr int MainScreenHeight = 640;
+    constexpr int FullScreenWidth = MainScreenWidth;
+    constexpr int FullScreenHeight = 706;
 
     constexpr int LeftRuler = 40;
     constexpr int TopRuler = 80;
@@ -55,10 +58,12 @@ namespace {
     constexpr int SmallItemWidth = 100;
     constexpr int SmallItemHeight = SmallItemWidth / 4;
 
+    constexpr int NotificationShelfHeight = FullScreenHeight - MainScreenHeight;
+
     constexpr int SettingsIconSize = 35;
 
     namespace geometry {
-        constexpr QRect BackgroundImage(0, 0, ScreenWidth, ScreenHeight);
+        constexpr QRect BackgroundImage(0, 0, MainScreenWidth, MainScreenHeight);
         constexpr QRect LogoImage(LeftRuler, TopRuler, ItemWidth, ItemHeight);
         constexpr QRect ChooseLabel(LeftRuler + 10, TopRuler + 80, 151, 24);
         constexpr QRect ProfileBox(LeftRuler, TopRuler + 110, ItemWidth, ItemHeight);
@@ -80,14 +85,19 @@ namespace {
             LeftRuler, TopRuler + 400, ItemWidth, ItemHeight
         );
         constexpr QRect VersionString(
-            5, ScreenHeight - SmallItemHeight, ItemWidth, SmallItemHeight
+            5, MainScreenHeight - SmallItemHeight, ItemWidth, SmallItemHeight
         );
         constexpr QRect SettingsButton(
-            ScreenWidth - SettingsIconSize - 5,
-            ScreenHeight - SettingsIconSize - 5,
+            MainScreenWidth - SettingsIconSize - 5,
+            MainScreenHeight - SettingsIconSize - 5,
             SettingsIconSize,
             SettingsIconSize
         );
+        constexpr QRect NotificationShelf(
+            0,
+            MainScreenHeight,
+            MainScreenWidth,
+            NotificationShelfHeight);
     } // namespace geometry
 
 
@@ -132,7 +142,7 @@ LauncherWindow::LauncherWindow(bool profileEnabled, const Configuration& globalC
     );
 
     setWindowTitle("OpenSpace Launcher");
-    setFixedSize(ScreenWidth, ScreenHeight);
+    setFixedSize(FullScreenWidth, FullScreenHeight);
     setAutoFillBackground(false);
 
     {
@@ -163,6 +173,12 @@ LauncherWindow::LauncherWindow(bool profileEnabled, const Configuration& globalC
         logoImage->setPixmap(QPixmap(":/images/openspace-horiz-logo-small.png"));
     }
 
+    {
+        NotificationWindow* notificationWindow = new NotificationWindow(centralWidget);
+        notificationWindow->setGeometry(geometry::NotificationShelf);
+        notificationWindow->show();
+    }
+
     //
     // Profile chooser
     //

apps/OpenSpace/ext/launcher/src/notificationwindow.cpp

@@ -0,0 +1,223 @@
+/*****************************************************************************************
+ *                                                                                       *
+ * OpenSpace                                                                             *
+ *                                                                                       *
+ * Copyright (c) 2014-2025                                                               *
+ *                                                                                       *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this  *
+ * software and associated documentation files (the "Software"), to deal in the Software *
+ * without restriction, including without limitation the rights to use, copy, modify,    *
+ * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to    *
+ * permit persons to whom the Software is furnished to do so, subject to the following   *
+ * conditions:                                                                           *
+ *                                                                                       *
+ * The above copyright notice and this permission notice shall be included in all copies *
+ * or substantial portions of the Software.                                              *
+ *                                                                                       *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,   *
+ * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A         *
+ * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT    *
+ * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF  *
+ * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE  *
+ * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                                         *
+ ****************************************************************************************/
+
+#include "notificationwindow.h"
+
+#include <openspace/openspace.h>
+#include <openspace/engine/settings.h>
+#include <openspace/util/httprequest.h>
+#include <ghoul/logging/logmanager.h>
+#include <ghoul/misc/assert.h>
+#include <ghoul/misc/stringhelper.h>
+#include <QGuiApplication>
+#include <QStyleHints>
+#include <QTimer>
+#include <scn/scan.h>
+#include <date/date.h>
+#include <string_view>
+#include <vector>
+
+using namespace openspace;
+
+namespace {
+    struct Entry {
+        std::string date;
+        std::string text;
+    };
+
+    // Parses a single notification entry out of the list of lines
+    Entry parseEntry(std::vector<std::string>::const_iterator& curr) {
+        ghoul_assert(!curr->empty(), "First line must not be empty");
+
+        std::string date = *curr;
+        std::string text;
+        do {
+            curr++;
+
+            text += *curr;
+        } while (!curr->empty());
+        curr++;
+
+        return { std::move(date), std::move(text) };
+    }
+
+    std::vector<Entry> parseEntries(const std::string& data) {
+        std::vector<Entry> entries;
+
+        std::vector<std::string> lines = ghoul::tokenizeString(data, '\n');
+        std::vector<std::string>::const_iterator curr = lines.cbegin();
+        while (curr != lines.end()) {
+            Entry e = parseEntry(curr);
+            entries.push_back(std::move(e));
+        }
+
+        return entries;
+    }
+
+    std::string formatEntry(const Entry& e, date::year_month_day lastStartedDate) {
+        auto r = scn::scan<int, int, int>(e.date, "{}-{}-{}");
+        ghoul_assert(r, "Invalid date");
+        auto& [year, month, day] = r->values();
+        const date::year_month_day ymd = date::year_month_day(
+            date::year(year),
+            date::month(month),
+            date::day(day)
+        );
+
+        QColor text = QGuiApplication::palette().text().color();
+        text = text.darker();
+
+        if (date::sys_days(ymd) < date::sys_days(lastStartedDate)) {
+            QColor text = QColor(120, 120, 120);
+            return std::format(
+                "<tr>"
+                    "<td width='15%'>"
+                        "<font color='#{2:x}{3:x}{4:x}'>{0}</font>"
+                    "</td>"
+                    "<td width='85%' align='left'>"
+                        "<font color='#{2:x}{3:x}{4:x}'>{1}</font>"
+                    "</td>"
+                "</tr>",
+                e.date, e.text, text.red(), text.green(), text.blue()
+            );
+        }
+        else {
+            return std::format(
+                "<tr>"
+                    "<td width='15%'>"
+                        "{0}"
+                    "</td>"
+                    "<td width='85%' align='left'>"
+                        "{1}"
+                    "</td>"
+                "</tr>",
+                e.date, e.text
+            );
+        }
+    }
+} // namespace
+
+NotificationWindow::NotificationWindow(QWidget* parent)
+    : QTextEdit(parent)
+{
+    setAcceptRichText(true);
+    setReadOnly(true);
+    setFocusPolicy(Qt::NoFocus);
+    setObjectName("notifications");
+
+    std::string URL = std::format(
+        "https://raw.githubusercontent.com/OpenSpace/Notifications/refs/heads/master/"
+        "{}.txt",
+        OPENSPACE_IS_RELEASE_BUILD ? OPENSPACE_VERSION_NUMBER : "master"
+    );
+
+    _request = std::make_unique<HttpMemoryDownload>(std::string(URL));
+    _request->start(std::chrono::seconds(1));
+
+    // The download has a timeout of 1s, so after 1250ms we'll definitely have answer.
+    constexpr int TimeOut = 1250;
+    QTimer::singleShot(TimeOut, [this](){
+        while (!_request->hasSucceeded() && !_request->hasFailed()) {
+            std::this_thread::sleep_for(std::chrono::milliseconds(250));
+        }
+        if (_request->hasFailed()) {
+            LWARNINGC("Notification", "Failed to retrieve notification file");
+            // The download has failed for some reason
+            return;
+        }
+
+        // 1. Get the downloaded data
+        const std::vector<char>& data = _request->downloadedData();
+        std::string notificationText = std::string(data.begin(), data.end());
+
+        // 2. Parse the retrieved data into entries
+        std::vector<Entry> entries = parseEntries(notificationText);
+
+        // 3. Filter the entries to not show anything that is older than 6 months
+        const date::year_month_day now = date::year_month_day(
+            floor<date::days>(std::chrono::system_clock::now())
+        );
+        std::erase_if(
+            entries,
+            [now](const Entry& e) {
+                auto r = scn::scan<int, int, int>(e.date, "{}-{}-{}");
+                if (!r) {
+                    return false;
+                }
+
+                auto& [year, month, day] = r->values();
+
+                const date::year_month_day ymd = date::year_month_day(
+                    date::year(year),
+                    date::month(month),
+                    date::day(day)
+                );
+
+                const std::chrono::days diff = date::sys_days(now) - date::sys_days(ymd);
+                const bool older = diff.count() > (365 / 2);
+                return older;
+            }
+        );
+
+        // 4. Format the entries into a table format
+        Settings settings = loadSettings();
+        // Picking a date as the default date that is far enough in the past
+        date::year_month_day lastStart = date::year_month_day(
+            date::year(2000),
+            date::month(1),
+            date::day(1)
+        );
+        if (settings.lastStartedDate.has_value()) {
+            auto r = scn::scan<int, int, int>(*settings.lastStartedDate, "{}-{}-{}");
+            if (r) {
+                auto& [year, month, day] = r->values();
+
+                lastStart = date::year_month_day(
+                    date::year(year),
+                    date::month(month),
+                    date::day(day)
+                );
+            }
+        }
+
+        std::string text = std::accumulate(
+            entries.begin(),
+            entries.end(),
+            std::string(),
+            [&lastStart](std::string t, const Entry& e) {
+                return std::format(
+                    "{}{}",
+                    std::move(t), formatEntry(e, lastStart)
+                );
+            }
+        );
+
+        // Add the HTML-like table attributes
+        text = std::format("<table border='0'>{}</table>", std::move(text));
+
+        // 5. Set the text
+        QString t = QString::fromStdString(text);
+        setText(t);
+    });
+}

apps/OpenSpace/main.cpp

@@ -53,6 +53,7 @@
 #include <sgct/projection/nonlinearprojection.h>
 #include <sgct/user.h>
 #include <sgct/window.h>
+#include <date/date.h>
 #include <stb_image.h>
 #include <tracy/Tracy.hpp>
 #include <iostream>
@@ -1086,6 +1087,12 @@ void setSgctDelegateFunctions() {
 int main(int argc, char* argv[]) {
     ZoneScoped;
 
+    // For debugging purposes: Enforce Light Mode in Qt
+    // qputenv("QT_QPA_PLATFORM", "windows:darkmode=0");
+
+    // For debugging purposes: Enforce Dark Mode in Qt
+    // qputenv("QT_QPA_PLATFORM", "windows:darkmode=1");
+
 #ifdef OPENSPACE_BREAK_ON_FLOATING_POINT_EXCEPTION
     _clearfp();
     _controlfp(_controlfp(0, 0) & ~(_EM_ZERODIVIDE | _EM_OVERFLOW), _MCW_EM);
@@ -1467,6 +1474,15 @@ int main(int argc, char* argv[]) {
 
         settings.configuration =
             isGeneratedWindowConfig ? "" : global::configuration->windowConfiguration;
+        const date::year_month_day now = date::year_month_day(
+            floor<date::days>(std::chrono::system_clock::now())
+        );
+        settings.lastStartedDate = std::format(
+            "{}-{:0>2}-{:0>2}",
+            static_cast<int>(now.year()),
+            static_cast<unsigned>(now.month()),
+            static_cast<unsigned>(now.day())
+        );
 
         saveSettings(settings, findSettings());
     }