Factor out static methods for determining the event type and button when dealing with annotations

Patch by Radu Voicilas

svn path=/trunk/KDE/kdegraphics/okular/; revision=1165294

ui/annotationtools.cpp

@@ -11,6 +11,7 @@
 
 // qt / kde includes
 #include <qcolor.h>
+#include <qevent.h>
 #include <qpainter.h>
 
 // local includes
@@ -29,6 +30,22 @@ AnnotatorEngine::AnnotatorEngine( const QDomElement & engineElement )
         m_annotElement = annElement;
 }
 
+void AnnotatorEngine::decodeEvent( const QMouseEvent * mouseEvent, EventType * eventType, Button * button )
+{
+    *eventType = AnnotatorEngine::Press;
+    if ( mouseEvent->type() == QEvent::MouseMove )
+        *eventType = AnnotatorEngine::Move;
+    else if ( mouseEvent->type() == QEvent::MouseButtonRelease )
+        *eventType = AnnotatorEngine::Release;
+
+    *button = AnnotatorEngine::None;
+    const Qt::MouseButtons buttonState = ( *eventType == AnnotatorEngine::Move ) ? mouseEvent->buttons() : mouseEvent->button();
+    if ( buttonState == Qt::LeftButton )
+        *button = AnnotatorEngine::Left;
+    else if ( buttonState == Qt::RightButton )
+        *button = AnnotatorEngine::Right;
+}
+
 AnnotatorEngine::~AnnotatorEngine()
 {
 }

ui/annotationtools.h

@@ -16,6 +16,7 @@
 
 #include "core/area.h"
 
+class QMouseEvent;
 class QPainter;
 class PageViewItem;
 namespace Okular {
@@ -47,6 +48,8 @@ class AnnotatorEngine
 
         void setItem( PageViewItem * item ) { m_item = item; }
 
+        static void decodeEvent( const QMouseEvent * mouseEvent, EventType * eventType, Button * button );
+
     protected:
         PageViewItem * item() { return m_item; }
 

ui/pageviewannotator.cpp

@@ -711,20 +711,11 @@ QRect PageViewAnnotator::routeEvent( QMouseEvent * e, PageViewItem * item )
 {
     if ( !item ) return QRect();
 
-    // find out mouse event type
-    AnnotatorEngine::EventType eventType = AnnotatorEngine::Press;
-    if ( e->type() == QEvent::MouseMove )
-        eventType = AnnotatorEngine::Move;
-    else if ( e->type() == QEvent::MouseButtonRelease )
-        eventType = AnnotatorEngine::Release;
-
-    // find out the pressed button
-    AnnotatorEngine::Button button = AnnotatorEngine::None;
-    Qt::MouseButtons buttonState = ( eventType == AnnotatorEngine::Move ) ? e->buttons() : e->button();
-    if ( buttonState == Qt::LeftButton )
-        button = AnnotatorEngine::Left;
-    else if ( buttonState == Qt::RightButton )
-        button = AnnotatorEngine::Right;
+    AnnotatorEngine::EventType eventType;
+    AnnotatorEngine::Button button;
+
+    // figure out the event type and button
+    AnnotatorEngine::decodeEvent( e, &eventType, &button );
 
     // find out normalized mouse coords inside current item
     const QRect & itemRect = item->uncroppedGeometry();

ui/presentationwidget.cpp

@@ -1057,19 +1057,12 @@ QRect PresentationWidget::routeMouseDrawingEvent( QMouseEvent * e )
     const QRect & geom = m_frames[ m_frameIndex ]->geometry;
     const Okular::Page * page = m_frames[ m_frameIndex ]->page;
 
-    AnnotatorEngine::EventType eventType = AnnotatorEngine::Press;
-    if ( e->type() == QEvent::MouseMove )
-        eventType = AnnotatorEngine::Move;
-    else if ( e->type() == QEvent::MouseButtonRelease )
-        eventType = AnnotatorEngine::Release;
-
-    // find out the pressed button
-    AnnotatorEngine::Button button = AnnotatorEngine::None;
-    Qt::MouseButtons buttonState = ( eventType == AnnotatorEngine::Move ) ? e->buttons() : e->button();
-    if ( buttonState == Qt::LeftButton )
-        button = AnnotatorEngine::Left;
-    else if ( buttonState == Qt::RightButton )
-        button = AnnotatorEngine::Right;
+    AnnotatorEngine::EventType eventType;
+    AnnotatorEngine::Button button;
+
+    // figure out the event type and button
+    AnnotatorEngine::decodeEvent( e, &eventType, &button );
+
     static bool hasclicked = false;
     if ( eventType == AnnotatorEngine::Press )
         hasclicked = true;