Rewritten about dialog

nw/gui/dialogs/about.py

@@ -28,9 +28,13 @@
 import logging
 import nw
 
+from os import path
+from datetime import datetime
+
 from PyQt5.QtCore import Qt
 from PyQt5.QtWidgets import (
-    QDialog, QHBoxLayout, QVBoxLayout, QDialogButtonBox
+    QDialog, QHBoxLayout, QVBoxLayout, QDialogButtonBox, QTabWidget,
+    QTextBrowser, QLabel
 )
 
 logger = logging.getLogger(__name__)
@@ -42,11 +46,52 @@ class GuiAbout(QDialog):
 
         logger.debug("Initialising GuiAbout ...")
 
-        self.mainConf = nw.CONFIG
+        self.mainConf  = nw.CONFIG
+        self.theParent = theParent
 
         self.outerBox = QVBoxLayout()
         self.innerBox = QHBoxLayout()
+        self.innerBox.setSpacing(16)
 
+        self.setWindowTitle("About %s" % nw.__package__)
+        self.setMinimumWidth(700)
+        self.setMinimumHeight(600)
+
+        self.guiDeco = self.theParent.theTheme.loadDecoration("nwicon", (96, 96))
+        self.lblName = QLabel("<b>%s</b>" % nw.__package__)
+        self.lblVers = QLabel("v%s" % nw.__version__)
+        self.lblDate = QLabel(datetime.strptime(nw.__date__, "%Y-%m-%d").strftime("%x"))
+
+        self.leftBox  = QVBoxLayout()
+        self.leftBox.setSpacing(4)
+        self.leftBox.addWidget(self.guiDeco, 0, Qt.AlignCenter)
+        self.leftBox.addWidget(self.lblName, 0, Qt.AlignCenter)
+        self.leftBox.addWidget(self.lblVers, 0, Qt.AlignCenter)
+        self.leftBox.addWidget(self.lblDate, 0, Qt.AlignCenter)
+        self.leftBox.addStretch(1)
+        self.innerBox.addLayout(self.leftBox)
+
+        # Pages
+        self.pageAbout = QTextBrowser()
+        self.pageAbout.setOpenExternalLinks(True)
+        self.pageAbout.document().setDocumentMargin(16)
+
+        # self.pageCredit = QTextBrowser()
+        # self.pageCredit.setOpenExternalLinks(True)
+        # self.pageCredit.document().setDocumentMargin(16)
+
+        self.pageLicense = QTextBrowser()
+        self.pageLicense.setOpenExternalLinks(True)
+        self.pageLicense.document().setDocumentMargin(16)
+
+        # Main Tab Area
+        self.tabBox = QTabWidget()
+        self.tabBox.addTab(self.pageAbout, "About")
+        # self.tabBox.addTab(self.pageCredit, "Credit")
+        self.tabBox.addTab(self.pageLicense, "License")
+        self.innerBox.addWidget(self.tabBox)
+
+        # OK Button
         self.buttonBox = QDialogButtonBox(QDialogButtonBox.Ok)
         self.buttonBox.accepted.connect(self._doClose)
 
@@ -54,6 +99,10 @@ class GuiAbout(QDialog):
         self.outerBox.addWidget(self.buttonBox)
         self.setLayout(self.outerBox)
 
+        self._setStyleSheet()
+        self._fillAboutPage()
+        self._fillLicensePage()
+
         logger.debug("GuiAbout initialisation complete")
 
         return
@@ -62,6 +111,120 @@ class GuiAbout(QDialog):
     #  Internal Functions
     ##
 
+    def _fillAboutPage(self):
+        """Generate the content for the About page.
+        """
+        listPrefix = "&nbsp;&nbsp;&bull;&nbsp;&nbsp;"
+        aboutMsg   = (
+            "<h2>About {name:s}</h2>"
+            "<p>{copyright:s}.</p>"
+            "<p>Website: <a href='{website:s}'>{domain:s}</a></p>"
+            "<p>{name:s} is a markdown-like text editor designed for organising and writing "
+            "novels. It is written in Python 3 with a Qt5 GUI, using PyQt5.</p>"
+            "<p>{name:s} 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.</p>"
+            "<p>{name:s} 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.</p>"
+            "<p>See the License tab for the full text, or visit  the GNU website at "
+            "<a href='https://www.gnu.org/licenses/gpl-3.0.html'>GPL v3.0</a> for more details.</p>"
+            "<h3>Credits</h3>"
+            "<p>{credits:s}</p>"
+        ).format(
+            name      = nw.__package__,
+            copyright = nw.__copyright__,
+            website   = nw.__url__,
+            domain    = nw.__domain__,
+            credits   = "<br/>".join(["%s%s" % (listPrefix, x) for x in nw.__credits__]),
+        )
+
+        theTheme = self.theParent.theTheme
+        theIcons = self.theParent.theTheme.theIcons
+        if theTheme.themeName:
+            aboutMsg += (
+                "<h4>Theme: {name:s}</h4>"
+                "<p>"
+                    "<b>Author:</b> {author:s}<br/>"
+                    "<b>Credit:</b> {credit:s}<br/>"
+                    "<b>License:</b> <a href='{lic_url:s}'>{license:s}</a>"
+                "</p>"
+            ).format(
+                name    = theTheme.themeName,
+                author  = theTheme.themeAuthor,
+                credit  = theTheme.themeCredit,
+                license = theTheme.themeLicense,
+                lic_url = theTheme.themeLicenseUrl,
+            )
+        if theIcons.themeName:
+            aboutMsg += (
+                "<h4>Icons: {name:s}</h4>"
+                "<p>"
+                    "<b>Author:</b> {author:s}<br/>"
+                    "<b>Credit:</b> {credit:s}<br/>"
+                    "<b>License:</b> <a href='{lic_url:s}'>{license:s}</a>"
+                "</p>"
+            ).format(
+                name    = theIcons.themeName,
+                author  = theIcons.themeAuthor,
+                credit  = theIcons.themeCredit,
+                license = theIcons.themeLicense,
+                lic_url = theIcons.themeLicenseUrl,
+            )
+        if theTheme.syntaxName:
+            aboutMsg += (
+                "<h4>Syntax: {name:s}</h4>"
+                "<p>"
+                    "<b>Author:</b> {author:s}<br/>"
+                    "<b>Credit:</b> {credit:s}<br/>"
+                    "<b>License:</b> <a href='{lic_url:s}'>{license:s}</a>"
+                "</p>"
+            ).format(
+                name    = theTheme.syntaxName,
+                author  = theTheme.syntaxAuthor,
+                credit  = theTheme.syntaxCredit,
+                license = theTheme.syntaxLicense,
+                lic_url = theTheme.syntaxLicenseUrl,
+            )
+
+        self.pageAbout.setHtml(aboutMsg)
+
+        return
+
+    def _fillLicensePage(self):
+        """Load the content for the License page.
+        """
+        docName = "gplv3_%s.htm" % self.mainConf.guiLang
+        docPath = path.join(self.mainConf.assetPath, "text", docName)
+        if path.isfile(docPath):
+            with open(docPath, mode="r", encoding="utf8") as inFile:
+                helpText = inFile.read()
+            self.pageLicense.setHtml(helpText)
+        else:
+            self.pageLicense.setHtml("Error loading license text ...")
+        return
+
+    def _setStyleSheet(self):
+        """Set stylesheet for all browser tabs
+        """
+        styleSheet = (
+            "h1, h2, h3, h4 {{"
+            "  color: rgb({hColR},{hColG},{hColB});"
+            "}}\n"
+            "a {{"
+            "  color: rgb({hColR},{hColG},{hColB});"
+            "}}\n"
+        ).format(
+            hColR = self.theParent.theTheme.colHead[0],
+            hColG = self.theParent.theTheme.colHead[1],
+            hColB = self.theParent.theTheme.colHead[2],
+        )
+        self.pageAbout.document().setDefaultStyleSheet(styleSheet)
+        # self.pageCredit.document().setDefaultStyleSheet(styleSheet)
+        self.pageLicense.document().setDefaultStyleSheet(styleSheet)
+
+        return
+
     def _doClose(self):
         self.close()
         return