first commit

modern-qt/core/application.hh

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+#pragma once
+
+#include "modern-qt/utility/wrapper/common.hh"
+#include "modern-qt/utility/wrapper/property.hh"
+#include <qapplication.h>
+#include <qcoreapplication.h>
+
+namespace creeper::app::pro {
+
+using Token = common::Token<QApplication>;
+
+struct Complete : Token {
+
+    int& argument_count;
+    char** argument_array;
+    int application_flags;
+
+    explicit Complete(int& argc, char* argv[], int flags = ::QCoreApplication::ApplicationFlags)
+        : argument_count { argc }
+        , argument_array { argv }
+        , application_flags { flags } { }
+
+    void apply(auto&) const noexcept {
+        new ::QApplication {
+            argument_count,
+            argument_array,
+            application_flags,
+        };
+    }
+};
+
+struct Attribute : Token {
+
+    ::Qt::ApplicationAttribute attribute;
+    bool on;
+
+    explicit Attribute(::Qt::ApplicationAttribute attribute, bool on = true) noexcept
+        : attribute { attribute }
+        , on { on } { }
+
+    void apply(auto&) const noexcept { ::QApplication::setAttribute(attribute, on); }
+};
+
+template <class T>
+concept trait = std::derived_from<T, Token>;
+
+CREEPER_DEFINE_CHECKER(trait);
+}
+namespace creeper::app {
+
+struct Application { };
+using init = Declarative<Application, pro::checker>;
+
+inline auto exec() { return ::QApplication::exec(); }
+inline auto quit() { return ::QApplication::quit(); }
+
+inline auto focus_widget() { return ::QApplication::focusWidget(); }
+inline auto focus_object() { return ::QApplication::focusObject(); }
+
+#if QT_DEPRECATED_SINCE(6, 0)
+#define AA_EnableHighDpiScaling AA_AttributeCount
+#define AA_UseHighDpiPixmaps AA_AttributeCount
+#endif
+
+}