app: add 'about' page

xkcdreader/about.go

@@ -0,0 +1,92 @@
+// Copyright 2022 wanderer <a_mirre at utb dot cz>
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package xkcdreader
+
+import (
+	// for embedding standard license header
+	_ "embed"
+	"log"
+
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/container"
+	"fyne.io/fyne/v2/layout"
+	"fyne.io/fyne/v2/widget"
+	"git.dotya.ml/wanderer/go-xkcdreader/cmd"
+)
+
+type project struct {
+	name         string
+	version      string
+	homepage     string
+	codeHomepage string
+	author       string
+	license      string
+}
+
+var authorInfo = "Adam Mirre <a_mirre at utb dot cz>"
+var projectURL = "https://git.dotya.ml/wanderer/go-xkcdreader"
+
+//go:embed assets/standard-license-header.txt
+var l string
+
+func aboutWindow() {
+	app := getApp()
+	w := app.NewWindow("about - " + cmd.GetAppName())
+
+	projectInfo := &project{
+		name:         cmd.GetAppName(),
+		homepage:     projectURL,
+		codeHomepage: projectURL,
+		version:      cmd.GetShortVersion(),
+		author:       authorInfo,
+		license:      "GPL-3.0-or-later",
+	}
+	aboutTitle := container.New(
+		layout.NewHBoxLayout(),
+		&layout.Spacer{},
+		&widget.Label{Text: "About", TextStyle: fyne.TextStyle{Bold: true}},
+		&layout.Spacer{},
+	)
+	licenseScroll := container.NewScroll(
+		&widget.Label{Text: l, TextStyle: fyne.TextStyle{Monospace: true}},
+	)
+	licenseScroll.SetMinSize(fyne.Size{Height: 200, Width: 300})
+
+	ac := widget.NewAccordion(widget.NewAccordionItem(
+		projectInfo.license,
+		licenseScroll,
+	))
+
+	homepageScroll := container.NewHScroll(
+		&widget.Hyperlink{Text: projectInfo.codeHomepage, TextStyle: fyne.TextStyle{Monospace: true}},
+	)
+	homepageScroll.SetMinSize(fyne.Size{Width: 300})
+
+	about := container.New(
+		layout.NewFormLayout(),
+		&widget.Label{Text: "Name and version"},
+		&widget.Label{Text: projectInfo.name + " - " + projectInfo.version, TextStyle: fyne.TextStyle{Bold: true}},
+		&widget.Label{Text: "Author"},
+		&widget.Label{Text: projectInfo.author, TextStyle: fyne.TextStyle{Bold: true}},
+		&widget.Label{Text: "Project homepage"},
+		homepageScroll,
+		&widget.Label{Text: "License"},
+		ac,
+	)
+
+	w.SetContent(container.NewVBox(
+		aboutTitle,
+		container.NewHBox(
+			&layout.Spacer{},
+			about,
+			&layout.Spacer{},
+		),
+	))
+
+	w.Resize(fyne.NewSize(600, 420))
+
+	log.Println("Show About window")
+
+	w.Show()
+}

xkcdreader/app.go

@@ -73,6 +73,7 @@ func makeToolbar() *widget.Toolbar {
 		widget.NewToolbarAction(theme.SettingsIcon(), func() {
 			log.Println("Display settings")
 		}),
+		widget.NewToolbarAction(theme.InfoIcon(), aboutWindow),
 	)
 	return toolbar
 }

xkcdreader/app_test.go

@@ -19,7 +19,7 @@ func TestGreetingText(t *testing.T) {
 }
 
 func TestToolbar(t *testing.T) {
-	wantItems := 4
+	wantItems := 5
 	gotToolbar := makeToolbar()
 
 	if len(gotToolbar.Items) != wantItems {

xkcdreader/assets/standard-license-header.txt

@@ -0,0 +1,14 @@
+an offline-capable xkcd webcomic reader written in Go
+Copyright (C) 2022 Adam Mirre <a_mirre at utb dot cz>
+
+This program 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.
+
+This program 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
+this program.  If not, see <https://www.gnu.org/licenses/>.