added the clear button

src/gui/official/JPushButton.cpp

@@ -53,7 +53,6 @@ JPushButton::release()
 void
 JPushButton::press() 
 {
-  _debug("Pressed.\n");
   mIsPressed = true;
   resize(mImages[1].size());
   setPixmap(mImages[1]);

src/gui/official/PhoneLine.cpp

@@ -62,12 +62,18 @@ PhoneLine::unselect()
       emit backgrounded();
     }
     else {
-      mBuffer.clear();
+      clear();
       emit unselected();
     }
   }
 }
 
+void 
+PhoneLine::clear()
+{ 
+  mBuffer.clear();
+}
+
 void 
 PhoneLine::sendKey(Qt::Key c)
 {

src/gui/official/PhoneLine.hpp

@@ -52,6 +52,11 @@ public:
   void sendKey(Qt::Key c);
   
 public slots:
+  /**
+   * Clears the buffer of the line.
+   */
+  void clear();
+  
   /**
    * The user selected this line.
    */

src/gui/official/PhoneLineManagerImpl.cpp

@@ -183,3 +183,17 @@ PhoneLineManagerImpl::hangup()
   }
 }
 
+void
+PhoneLineManagerImpl::clear()
+{
+  mCurrentLineMutex.lock();
+  PhoneLine *selectedLine = mCurrentLine;
+  PhoneLineLocker guard(selectedLine);
+  mCurrentLine = NULL;
+  mCurrentLineMutex.unlock();
+
+  if(selectedLine) {
+    selectedLine->clear();
+  }
+}
+

src/gui/official/PhoneLineManagerImpl.hpp

@@ -71,6 +71,12 @@ public slots:
    * is invalid, it just do nothing.
    */
   void selectLine(unsigned int line);
+
+  /**
+   * This function will clear the buffer of the active
+   * line. If there's no active line, it will do nothing.
+   */
+  void clear();
   
   PhoneLine *selectNextAvailableLine();
 

src/gui/official/SFLPhoneApp.cpp

@@ -50,6 +50,8 @@ SFLPhoneApp::initConnections(SFLPhoneWindow *w)
 		   &PhoneLineManager::instance(), SLOT(hangup()));
   QObject::connect(w->mHold, SIGNAL(clicked()),
 		   &PhoneLineManager::instance(), SLOT(hold()));
+  QObject::connect(w->mClear, SIGNAL(clicked()),
+		   &PhoneLineManager::instance(), SLOT(clear()));
   QObject::connect(w, SIGNAL(keyPressed(Qt::Key)),
 		   &PhoneLineManager::instance(), SLOT(sendKey(Qt::Key)));
 }

src/gui/official/SFLPhoneWindow.cpp

@@ -34,6 +34,11 @@ SFLPhoneWindow::SFLPhoneWindow()
 			QPixmap(":/sflphone/images/ok_on"),
 			this);
   mOk->move(225,182);
+
+  mClear = new JPushButton(QPixmap(":/sflphone/images/clear_off"),
+			   QPixmap(":/sflphone/images/clear_on"),
+			   this);
+  mClear->move(225,130);
   
 //   QLabel *os = new QLabel(this);
 //   QPixmap overscreen(":/images/overscreen.png");

src/gui/official/SFLPhoneWindow.hpp

@@ -34,4 +34,5 @@ private:
   JPushButton *mHangup;
   JPushButton *mHold;
   JPushButton *mOk;
+  JPushButton *mClear;
 };

src/gui/official/sflphone.qrc

@@ -1,6 +1,8 @@
 <RCC>
     <qresource prefix="/sflphone" >
         <file>images/audio.png</file>
+        <file>images/clear_off.png</file>
+        <file>images/clear_on.png</file>
         <file>images/close_off.png</file>
         <file>images/close_on.png</file>
         <file>images/directory_on.png</file>