Add spinner to lyrics and info pages

gui/infopage.cpp

@@ -92,7 +92,7 @@ void InfoPage::update(const Song &s, bool force)
         if (currentSong.isEmpty()) {
             text->setText(QString());
         } else {
-            text->setHtml("<i>Retrieving...</i>");
+            text->setHtml("<i>Retrieving...</i>", true);
 
             Song s;
             s.albumartist=currentSong.artist;

lyrics/lyricspage.cpp

@@ -378,10 +378,10 @@ void LyricsPage::getLyrics()
     UltimateLyricsProvider *prov=UltimateLyrics::self()->getNext(currentProvider);
     if (prov) {
         text->setText(i18nc("<title> by <artist>\nFetching lyrics via <url>", "%1 by %2\nFetching lyrics via %3")
-                      .arg(currentSong.title).arg(currentSong.artist, prov->getName()));
+                      .arg(currentSong.title).arg(currentSong.artist, prov->getName()), true);
         prov->fetchInfo(currentRequest, currentSong);
     } else {
-        text->setText(i18nc("<title> by <artist>\nFailed\n", "%1 by %2\nFailed to fetch lyrics").arg(currentSong.title).arg(currentSong.artist));
+        text->setText(i18nc("<title> by <artist>\nFailed\n", "%1 by %2\nFailed to fetch lyrics").arg(currentSong.title).arg(currentSong.artist), true);
         currentProvider=-1;
         // Set lyrics file anyway - so that editing is enabled!
         lyricsFile=Settings::self()->storeLyricsInMpdDir()

widgets/textbrowser.cpp

@@ -22,6 +22,7 @@
  */
 
 #include "textbrowser.h"
+#include "spinner.h"
 #include <QPainter>
 #include <QDebug>
 
@@ -108,6 +109,7 @@ static void toGray(QImage &img)
 TextBrowser::TextBrowser(QWidget *p)
     : QTextBrowser(p)
     , drawImage(false)
+    , spinner(0)
 {
     orig=font().pointSize();
     if (-1==minSize) {
@@ -168,3 +170,41 @@ void TextBrowser::paintEvent(QPaintEvent *e)
 
     QTextBrowser::paintEvent(e);
 }
+
+void TextBrowser::setHtml(const QString &txt, bool showSpin)
+{
+    QTextBrowser::setHtml(txt);
+    if (showSpin) {
+        showSpiner();
+    } else {
+        hideSpinner();
+    }
+}
+
+void TextBrowser::setText(const QString &txt, bool showSpin)
+{
+    QTextBrowser::setText(txt);
+    if (showSpin) {
+        showSpiner();
+    } else {
+        hideSpinner();
+    }
+}
+
+void TextBrowser::showSpiner()
+{
+    if (!spinner) {
+        spinner=new Spinner(this);
+        spinner->setWidget(this);
+    }
+    if (!spinner->isActive()) {
+        spinner->start();
+    }
+}
+
+void TextBrowser::hideSpinner()
+{
+    if (spinner) {
+        spinner->stop();
+    }
+}

widgets/textbrowser.h

@@ -27,6 +27,7 @@
 #include <QTextBrowser>
 #include <QImage>
 #include <QDebug>
+class Spinner;
 
 class TextBrowser : public QTextBrowser
 {
@@ -40,11 +41,16 @@ public:
     void enableImage(bool e);
     bool imageEnabled() { return drawImage; }
     void paintEvent(QPaintEvent *e);
+    void setHtml(const QString &txt, bool showSpin=false);
+    void setText(const QString &txt, bool showSpin=false);
+    void showSpiner();
+    void hideSpinner();
 
 private:
     int orig;
     QImage image;
     bool drawImage;
+    Spinner *spinner;
 };
 
 #endif