Implement about this program window based on nana's implementation.

src/qt/memoserv_win.cpp

@@ -17,9 +17,11 @@
 
 #include "memoserv_win.hpp"
 #include "app_config.h"
+#include "version_info_win.hpp"
 #include <QMenu>
 #include <QMenuBar>
 #include <QApplication>
+
 #include <iostream>
 
 class QApplication;
@@ -52,6 +54,11 @@ void MemoservWin::create_menu(QApplication* app) {
 	}
 
 	QMenu* const help_menu = menuBar()->addMenu(tr("&Help"));
+	{
+		const auto version_info_act = new QAction(tr("Version &info..."), this);
+		help_menu->addAction(version_info_act);
+		connect(version_info_act, &QAction::triggered, this, &MemoservWin::show_version_info);
+	}
 	{
 		help_menu->addAction(tr("About &Qt..."), app, &QApplication::aboutQt);
 	}
@@ -61,4 +68,11 @@ void MemoservWin::open() {
 	std::cout << "MemoservWin::open()\n";
 }
 
+void MemoservWin::show_version_info() {
+	std::cout << "MemoservWin::show_version_info()\n";
+	VersionInfoWin vinfo(this);
+	vinfo.setWindowModality(Qt::WindowModality::WindowModal);
+	vinfo.exec();
+}
+
 } //namespace duck

src/qt/memoserv_win.hpp

@@ -33,6 +33,7 @@ public:
 
 private:
 	void create_menu(QApplication*);
+	void show_version_info();
 
 	void open();
 };

src/qt/meson.build

@@ -2,10 +2,13 @@ cpp = meson.get_compiler('cpp')
 fslib_dep = cpp.find_library('stdc++fs', required: false)
 
 qt5 = import('qt5')
-qt5_dep = dependency('qt5', modules: ['Core', 'Gui', 'Widgets'])
+qt5_dep = dependency('qt5', modules: ['Core', 'Gui', 'Widgets'], version: '>=5.14')
 inc = include_directories('includes')
 moc_files = qt5.preprocess(
-	moc_headers: 'memoserv_win.hpp',
+	moc_headers: [
+		'memoserv_win.hpp',
+		'version_info_win.hpp',
+	],
 	#ui_files: 'main_window.ui',
 	moc_extra_arguments: ['-DMAKES_MY_MOC_HEADER_COMPILE'],
 	include_directories: inc,
@@ -25,7 +28,12 @@ config_file = configure_file(
 executable(app_name,
 	'main.cpp',
 	'memoserv_win.cpp',
+	'version_info_win.cpp',
 	moc_files,
+	config_file,
+	project_config_file,
+	gitrev_config_file,
 	include_directories: inc,
 	dependencies: [qt5_dep, fslib_dep],
+	install: true,
 )

src/qt/version_info_win.cpp

@@ -0,0 +1,89 @@
+/* Copyright 2020, Michele Santullo
+ * This file is part of memoserv.
+ *
+ * Memoserv is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Memoserv 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Memoserv.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "version_info_win.hpp"
+#include "app_config.h"
+#include "config.h"
+#include "git_version.h"
+#include <QLabel>
+#include <QHBoxLayout>
+#include <QVBoxLayout>
+#include <memory>
+#include <QPushButton>
+
+namespace duck {
+namespace {
+	const constexpr char g_gpl_text[] =
+		APP_SHORT_DESC "\n"
+		"Copyright (C) " COPYRIGHT_YEAR "  Michele Santullo\n"
+		"\n"
+		"This program is free software: you can redistribute it and/or modify\n"
+		"it under the terms of the GNU General Public License as published by\n"
+		"the Free Software Foundation, either version 3 of the License, or\n"
+		"(at your option) any later version.\n"
+		"\n"
+		"This program is distributed in the hope that it will be useful,\n"
+		"but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
+		"MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
+		"GNU General Public License for more details.\n"
+		"\n"
+		"You should have received a copy of the GNU General Public License\n"
+		"along with this program.  If not, see <https://www.gnu.org/licenses/>.\n"
+	;
+
+	void add_centered_md_label (const std::unique_ptr<QVBoxLayout>& lay, const QString& text) {
+		auto label = std::make_unique<QLabel>();
+		label->setTextFormat(Qt::TextFormat::MarkdownText);
+		label->setText(text);
+		lay->addWidget(label.release(), 0, Qt::AlignCenter);
+	}
+} //unnamed namespace
+
+VersionInfoWin::VersionInfoWin (QWidget* parent) :
+	QDialog(parent)
+{
+	this->setWindowTitle(tr("Version info") + " " + APP_NAME);
+
+	auto main_lay = std::make_unique<QVBoxLayout>();
+
+	add_centered_md_label(main_lay, QString("**") + APP_NAME + "**");
+	add_centered_md_label(main_lay, tr("is part of") + " **" + PROJECT_NAME + "** v" + project_ver());
+
+	if constexpr (sizeof(PROJECT_GIT_SHA1) > 1) {
+		add_centered_md_label(main_lay, tr("git revision") + " [" + PROJECT_GIT_SHA1 + "](" + PROJECT_REPO_URL + "/commit/" + PROJECT_GIT_SHA1 + ")");
+	}
+	add_centered_md_label(main_lay, tr("Official source code repository is available here:"));
+	add_centered_md_label(main_lay, QString("[") + PROJECT_REPO_URL + "](" + PROJECT_REPO_URL + ")");
+
+	{
+		auto txt = std::make_unique<QLabel>();
+		txt->setFrameStyle(QFrame::Panel | QFrame::Sunken);
+		txt->setText(g_gpl_text);
+		main_lay->addWidget(txt.release());
+	}
+
+	{
+		auto close = std::make_unique<QPushButton>();
+		close->setText(tr("&Close"));
+		close->setDefault(true);
+		connect(close.get(), &QPushButton::clicked, [this](){this->close();});
+		main_lay->addWidget(close.release(), 0, Qt::AlignRight);
+	}
+
+	setLayout(main_lay.release());
+}
+} //namespace duck

src/qt/version_info_win.hpp

@@ -0,0 +1,29 @@
+/* Copyright 2020, Michele Santullo
+ * This file is part of memoserv.
+ *
+ * Memoserv is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * Memoserv 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 for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Memoserv.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+
+#include <QDialog>
+
+namespace duck {
+class VersionInfoWin : public QDialog {
+    Q_OBJECT
+public:
+	explicit VersionInfoWin (QWidget* parent);
+private:
+};
+} //namespace duck