Add link: "Find details in the Mixxx user manual"

Author: daschuer

src/defs_urls.h

@@ -77,5 +77,7 @@
     MIXXX_MANUAL_URL "/chapters/vinyl_control.html#troubleshooting"
 #define MIXXX_MANUAL_SETTINGS_DIRECTORY_URL \
     MIXXX_MANUAL_URL "/chapters/appendix.html#settings-directory"
+#define MIXXX_MANUAL_OUTPUT_AND_INPUT_DEVICES \
+    MIXXX_MANUAL_URL "/chapters/preferences/sound_hardware#output-and-input-devices"
 #define MIXXX_MANUAL_FILENAME   "Mixxx-Manual.pdf"
 #define MIXXX_KBD_SHORTCUTS_FILENAME "Mixxx-Keyboard-Shortcuts.pdf"

src/preferences/dialog/dlgprefsound.cpp

@@ -283,6 +283,13 @@ DlgPrefSound::DlgPrefSound(QWidget* pParent,
                             m_pLinkColor,
                             tr("Mixxx DJ Hardware Guide"),
                             MIXXX_WIKI_HARDWARE_COMPATIBILITY_URL)));
+
+    QString deckBusHintStr = deckBusHint->text();
+    deckBusHintStr += " " +
+            coloredLinkString(m_pLinkColor,
+                    tr("Find details in the Mixxx user manual"),
+                    MIXXX_MANUAL_OUTPUT_AND_INPUT_DEVICES);
+    deckBusHint->setText(deckBusHintStr);
 }
 
 /// Slot called when the preferences dialog is opened.

src/preferences/dialog/dlgprefsounddlg.ui

@@ -336,6 +336,9 @@
         <property name="wordWrap">
          <bool>true</bool>
         </property>
+        <property name="openExternalLinks">
+         <bool>true</bool>
+        </property>
        </widget>
       </item>
       <item row="1" column="0" colspan="2">