diff -r 57d4cdd99204 -r edfc90759b9f imageeditor/plugins/ContrastPlugin/src/ImageEditorContrastPlugin.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/imageeditor/plugins/ContrastPlugin/src/ImageEditorContrastPlugin.cpp	Fri Jan 29 13:53:17 2010 +0200
@@ -0,0 +1,194 @@
+/*
+* Copyright (c) 2010 Ixonos Plc.
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of the "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - Initial contribution
+*
+* Contributors:
+* Ixonos Plc
+*
+* Description: 
+* Contrast plugin plugin base class.
+*
+*/
+
+
+/// INCLUDES
+#include <eikenv.h>
+#include <contrast.mbg>
+#include "ImageEditorContrastPlugin.h"
+#include "SingleParamControl.h"
+
+/// CONSTANTS
+_LIT (KPgnResourceFile, "contrast.rsc");
+
+const long KParamMin   = -100;
+const long KParamMax   = 100;
+const long KParamStep  = 10;
+const long KParamDef   = 0;
+const TInt KContrastHSTitleIndex = 0;
+
+_LIT (KContrastTag, "contrast ");
+_LIT (KResourceDir, "\\resource\\apps\\");
+
+//=============================================================================
+EXPORT_C CImageEditorPluginBase * CreateImageEditorPlugin ()
+{
+	CImageEditorContrastPlugin * plugin = new (ELeave) CImageEditorContrastPlugin;
+	CleanupStack::PushL(plugin);
+	plugin->ConstructL();
+	CleanupStack::Pop(); // plugin
+    return plugin;
+}
+
+//=============================================================================
+CImageEditorContrastPlugin::CImageEditorContrastPlugin () :
+CImageEditorPluginBase()
+{
+
+}
+
+//=============================================================================
+void CImageEditorContrastPlugin::ConstructL ()
+{
+    CImageEditorPluginBase::ConstructL (KPgnResourcePath, KPgnResourceFile);
+}
+
+//=============================================================================
+CImageEditorContrastPlugin::~CImageEditorContrastPlugin ()
+{
+    ReleasePlugin();
+}
+
+//=============================================================================
+TInt CImageEditorContrastPlugin::SetProperty (
+	TInt		/*aPropertyId*/,
+	TDesC &		/*aPropertyValue*/
+	)
+{
+	return KErrNotSupported;
+}
+
+//=============================================================================
+TInt CImageEditorContrastPlugin::GetProperty (
+	TInt		aPropertyId,
+	TDes &		aPropertyValue
+	)
+{
+	//	Clean buffer
+	aPropertyValue.Zero();
+
+	//	Copy data
+	switch (aPropertyId)
+	{
+		case KCapParamStruct:
+		{
+        	aPropertyValue.Copy (KContrastTag);
+        	aPropertyValue.AppendNum (iContrast);
+			return KErrNone;
+		}
+		default:
+		{
+			return CImageEditorPluginBase::GetProperty (aPropertyId, aPropertyValue);
+		}
+	}
+}
+
+//=============================================================================
+TInt CImageEditorContrastPlugin::InitPluginL (
+	const TRect &	aRect,
+	CCoeControl *	aParent,
+	CCoeControl *&	aPluginControl
+	)
+{
+	ReleasePlugin();
+	iControl = CSingleParamControl::NewL (aRect, aParent);
+    ((CSingleParamControl *)iControl)->SetParObserver ( (MSingleParControlObserver*)this );
+	aPluginControl = iControl;
+
+	// initialize horizontal slider
+	((CSingleParamControl *)iControl)->SetSliderMinimumAndMaximum(KParamMin, KParamMax);
+    ((CSingleParamControl *)iControl)->SetSliderStep(KParamStep);
+	((CSingleParamControl *)iControl)->SetSliderPosition(KParamDef);
+    TFileName iconFile (KResourceDir);
+	TBuf<256> readbuf;  
+	User::LeaveIfError ( GetProperty (KCapIconName, readbuf) );
+	iconFile.Append(readbuf);
+    CEikImage* icon = new (ELeave) CEikImage;
+	icon->CreatePictureFromFileL(iconFile,
+									EMbmContrastQgn_indi_imed_contrast_super,
+									EMbmContrastQgn_indi_imed_contrast_super_mask);
+	((CSingleParamControl *)iControl)->SetIcon(icon);
+
+	// Get caption from plugin properties
+	User::LeaveIfError ( GetProperty (KCapPluginParamNames, readbuf) );
+	TLex parser;
+	parser.Assign (readbuf);
+    TInt tempval = 0;
+	parser.Val ( tempval );
+    CDesCArray * parameters = (CDesCArray *)tempval;
+    ((CSingleParamControl *)iControl)->SetCaption( (*parameters)[KContrastHSTitleIndex] );
+
+	return KErrNone;
+}
+
+//=============================================================================
+void CImageEditorContrastPlugin::ProcessImageL (CEditorImage * /*aImage*/ )
+{
+	// Own image processing functionality here
+}
+
+//=============================================================================
+void CImageEditorContrastPlugin::ReleasePlugin ()
+{
+		delete iControl;
+		iControl = 0;
+}
+
+//=============================================================================
+void CImageEditorContrastPlugin::ParamOperation (const TParamOperation aOperation)
+{
+    switch (aOperation)
+    {
+        case EParamOperationSubtract:
+        {
+            iContrast -= KParamStep;
+            if (iContrast < KParamMin)
+            {
+                iContrast = KParamMin;
+            }
+    	    break;
+        }
+        case EParamOperationAdd:
+        {
+            iContrast += KParamStep;
+            if ( iContrast > KParamMax )
+            {
+                iContrast = KParamMax;
+            }
+    	    break;
+        }
+        case EParamOperationDefault:
+        {
+	        iContrast = KParamDef;
+    	    break;
+        }
+        default:
+        {
+    	    break;
+        }
+    }
+}
+
+//=============================================================================
+TReal CImageEditorContrastPlugin::GetParam () const
+{
+    return (TReal)(iContrast) / (KParamMax - KParamMin);
+}
+
+// End of File