From 1f8bdc6151e34f22dbcf4c863a67636451f48dfb Mon Sep 17 00:00:00 2001
From: Timothy Pearson <kb9vqf@pearsoncomputing.net>
Date: Fri, 3 May 2013 02:51:37 -0500
Subject: [PATCH] Hack around ARGB task tray icon background display glitch
 (cherry picked from commit 667839ee6560a10aca54885dbf8951b77bdc21b2)

---
 .../applets/systemtray/systemtrayapplet.cpp   | 23 +++++++++++++++++--
 kicker/applets/systemtray/systemtrayapplet.h  |  3 +++
 2 files changed, 24 insertions(+), 2 deletions(-)

diff --git a/kicker/applets/systemtray/systemtrayapplet.cpp b/kicker/applets/systemtray/systemtrayapplet.cpp
index 02b558520..1a96a9372 100644
--- a/kicker/applets/systemtray/systemtrayapplet.cpp
+++ b/kicker/applets/systemtray/systemtrayapplet.cpp
@@ -1130,13 +1130,20 @@ void SystemTrayApplet::setBackground()
 
 
 TrayEmbed::TrayEmbed( bool kdeTray, TQWidget* parent )
-    : QXEmbed( parent ), kde_tray( kdeTray )
+    : QXEmbed( parent ), kde_tray( kdeTray ), m_ensureBackgroundSetTimerCount(0)
 {
+    m_ensureBackgroundSetTimer = new TQTimer();
+    connect(m_ensureBackgroundSetTimer, TQT_SIGNAL(timeout()), this, TQT_SLOT(ensureBackgroundSet()));
     hide();
     m_scaledWidget = new TQWidget(parent);
     m_scaledWidget->hide();
 }
 
+TrayEmbed::~TrayEmbed()
+{
+    delete m_ensureBackgroundSetTimer;
+}
+
 void TrayEmbed::getIconSize(int defaultIconSize)
 {
     TQSize minSize = minimumSizeHint();
@@ -1170,6 +1177,7 @@ void TrayEmbed::setBackground()
     if (!isHidden())
     {
         XClearArea(x11Display(), embeddedWinId(), 0, 0, 0, 0, True);
+        m_ensureBackgroundSetTimerCount = 0;
         ensureBackgroundSet();
     }
 }
@@ -1182,7 +1190,7 @@ void TrayEmbed::ensureBackgroundSet()
 		// This is a nasty little hack to make sure that tray icons / applications which do not match our QXEmbed native depth are still displayed properly,
 		// i.e without irritating white/grey borders where the tray icon's transparency is supposed to be...
 		// Essentially it converts a 24 bit Xlib Pixmap to a 32 bit Xlib Pixmap
-	
+
 		TQPixmap bg(width(), height());
 
 		// Get the RGB background image
@@ -1212,5 +1220,16 @@ void TrayEmbed::ensureBackgroundSet()
 		XSetWindowBackgroundPixmap(x11Display(), embeddedWinId(), argbpixmap);
 		XFreePixmap(x11Display(), argbpixmap);
 		XFreeGC(x11Display(), gc);
+
+		// Repaint
+		XClearArea(x11Display(), embeddedWinId(), 0, 0, 0, 0, True);
+
+		// HACK
+		// Clear background artifacts in first available timeslot after initial icon display
+		if (m_ensureBackgroundSetTimerCount < 1) {
+			m_ensureBackgroundSetTimerCount++;
+			m_ensureBackgroundSetTimer->stop();
+			m_ensureBackgroundSetTimer->start(0, TRUE);
+		}
 	}
 }
diff --git a/kicker/applets/systemtray/systemtrayapplet.h b/kicker/applets/systemtray/systemtrayapplet.h
index 868941c13..84ee06ecb 100644
--- a/kicker/applets/systemtray/systemtrayapplet.h
+++ b/kicker/applets/systemtray/systemtrayapplet.h
@@ -128,12 +128,15 @@ class TrayEmbed : public QXEmbed
     Q_OBJECT
 public:
     TrayEmbed( bool kdeTray, TQWidget* parent = NULL );
+    ~TrayEmbed();
     bool kdeTray() const { return kde_tray; }
     void setBackground();
     void getIconSize(int defaultIconSize);
 private:
     bool kde_tray;
     TQWidget *m_scaledWidget;
+    TQTimer* m_ensureBackgroundSetTimer;
+    int m_ensureBackgroundSetTimerCount;
 private slots:
     void ensureBackgroundSet();
 };