Change paste settings and add copyright headers

- There's now a notice reminding people to change the base URL if they
  had a custom base URL and change the paste type (that was something I
  personally had problems with when I was testing, so a reminder was
  helpful for me).

- Broke down some of the long lines on APIPage.cpp to be more readable.

- Added copyright headers where they were missing.

- Changed the paste service display names to the names they are more
  commonly known by.

- Changed the default hastebin base URL to https://hst.sh due to the
  acquisition of https://hastebin.com by Toptal.

launcher/ui/pages/global/APIPage.cpp

@@ -53,8 +53,8 @@ APIPage::APIPage(QWidget *parent) :
     QWidget(parent),
     ui(new Ui::APIPage)
 {
-    // this is here so you can reorder the entries in the combobox without messing stuff up
-    unsigned int comboBoxEntries[] = {
+    // This is here so you can reorder the entries in the combobox without messing stuff up
+    int comboBoxEntries[] = {
         PasteUpload::PasteType::Mclogs,
         PasteUpload::PasteType::NullPointer,
         PasteUpload::PasteType::PasteGG,
@@ -69,13 +69,18 @@ APIPage::APIPage(QWidget *parent) :
         ui->pasteTypeComboBox->addItem(PasteUpload::PasteTypes.at(pasteType).name, pasteType);
     }
 
-    connect(ui->pasteTypeComboBox, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged), this, &APIPage::updateBaseURLPlaceholder);
+    void (QComboBox::*currentIndexChangedSignal)(int) (&QComboBox::currentIndexChanged);
+    connect(ui->pasteTypeComboBox, currentIndexChangedSignal, this, &APIPage::updateBaseURLPlaceholder);
     // This function needs to be called even when the ComboBox's index is still in its default state.
     updateBaseURLPlaceholder(ui->pasteTypeComboBox->currentIndex());
     ui->baseURLEntry->setValidator(new QRegularExpressionValidator(validUrlRegExp, ui->baseURLEntry));
     ui->tabWidget->tabBar()->hide();
 
     loadSettings();
+
+    resetBaseURLNote();
+    connect(ui->pasteTypeComboBox, currentIndexChangedSignal, this, &APIPage::updateBaseURLNote);
+    connect(ui->baseURLEntry, &QLineEdit::textEdited, this, &APIPage::resetBaseURLNote);
 }
 
 APIPage::~APIPage()
@@ -83,16 +88,36 @@ APIPage::~APIPage()
     delete ui;
 }
 
+void APIPage::resetBaseURLNote()
+{
+    ui->baseURLNote->hide();
+    baseURLPasteType = ui->pasteTypeComboBox->currentIndex();
+}
+
+void APIPage::updateBaseURLNote(int index)
+{
+    if (baseURLPasteType == index)
+    {
+        ui->baseURLNote->hide();
+    }
+    else if (!ui->baseURLEntry->text().isEmpty())
+    {
+        ui->baseURLNote->show();
+    }
+}
+
 void APIPage::updateBaseURLPlaceholder(int index)
 {
-    ui->baseURLEntry->setPlaceholderText(PasteUpload::PasteTypes.at(ui->pasteTypeComboBox->itemData(index).toUInt()).defaultBase);
+    int pasteType = ui->pasteTypeComboBox->itemData(index).toInt();
+    QString pasteDefaultURL = PasteUpload::PasteTypes.at(pasteType).defaultBase;
+    ui->baseURLEntry->setPlaceholderText(pasteDefaultURL);
 }
 
 void APIPage::loadSettings()
 {
     auto s = APPLICATION->settings();
 
-    unsigned int pasteType = s->get("PastebinType").toUInt();
+    int pasteType = s->get("PastebinType").toInt();
     QString pastebinURL = s->get("PastebinCustomAPIBase").toString();
 
     ui->baseURLEntry->setText(pastebinURL);
@@ -115,7 +140,7 @@ void APIPage::applySettings()
 {
     auto s = APPLICATION->settings();
 
-    s->set("PastebinType", ui->pasteTypeComboBox->currentData().toUInt());
+    s->set("PastebinType", ui->pasteTypeComboBox->currentData().toInt());
     s->set("PastebinCustomAPIBase", ui->baseURLEntry->text());
 
     QString msaClientID = ui->msaClientID->text();

launcher/ui/pages/global/APIPage.h

@@ -3,6 +3,7 @@
  *  PolyMC - Minecraft Launcher
  *  Copyright (C) 2022 Sefa Eyeoglu <contact@scrumplex.net>
  *  Copyright (c) 2022 Jamie Mansfield <jmansfield@cadixdev.org>
+ *  Copyright (c) 2022 Lenny McLennington <lenny@sneed.church>
  *
  *  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
@@ -73,6 +74,9 @@ public:
     void retranslate() override;
 
 private:
+    int baseURLPasteType;
+    void resetBaseURLNote();
+    void updateBaseURLNote(int index);
     void updateBaseURLPlaceholder(int index);
     void loadSettings();
     void applySettings();

launcher/ui/pages/global/APIPage.ui

@@ -61,6 +61,19 @@
             <property name="placeholderText">
              <string/>
             </property>
+            <property name="clearButtonEnabled">
+             <bool>true</bool>
+            </property>
+           </widget>
+          </item>
+          <item>
+           <widget class="QLabel" name="baseURLNote">
+            <property name="text">
+             <string>Note: you probably want to change or clear the Base URL after changing the paste service type.</string>
+            </property>
+            <property name="wordWrap">
+             <bool>true</bool>
+            </property>
            </widget>
           </item>
          </layout>