--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/locationlandmarksrefappfors60/Src/LandmarksCategoriesModel.cpp	Wed Sep 01 12:31:27 2010 +0100
@@ -0,0 +1,282 @@
+/*
+* Copyright (c) 2004-2005 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "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:
+*
+* Description:  
+*       Implements the CLandmarksCategoriesModel class and some help functions
+*
+*/
+
+
+
+#include <eikenv.h>
+#include <gulicon.h>
+#include <AknsUtils.h>
+#include <AknsItemID.h>
+
+#include <EPos_CPosLandmarkCategory.h>
+
+#include <lmrefapp.mbg>
+#include "LandmarksCommonData.h"
+#include "LandmarksCategoriesModel.h"
+
+// ============================= LOCAL FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// DefaultIconIndex returns the icon index of the appropriate default icon.
+// User defined categories have different default icons than global ones.
+//
+// Returns: an icon index
+// Param:   aCategory the category to investigate
+// -----------------------------------------------------------------------------
+//
+TInt DefaultIconIndex(CPosLandmarkCategory& aCategory)
+    {
+    // Global categories have different default icon than user-defined.
+    TBool isGlobal = aCategory.GlobalCategory() != KPosLmNullGlobalCategory;
+
+    if (isGlobal)
+        {
+        return KDefaultGlobalIconIndex;
+        }
+    else
+        {
+        return KDefaultUserIconIndex;
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// ResetAndDestroyIcons
+// Resets and destroys an array of icons. This function is used as a 
+// TCleanupOperation.
+// Params: aAny: The icons array to reset ands destroy
+// -----------------------------------------------------------------------------
+//
+void ResetAndDestroyIcons(TAny* aAny)
+    {
+    CIconList* icons = reinterpret_cast <CIconList*> (aAny);
+    for (TInt i = 0; i < icons->Count(); i++)
+        {
+        delete &icons[i];
+        }
+    icons->Reset();
+    }
+
+// ============================ MEMBER FUNCTIONS ===============================
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CLandmarksCategoriesModel::CLandmarksCategoriesModel()
+	{
+	}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CLandmarksCategoriesModel::ConstructL()
+	{
+	// The list box model uses MDesCArray interface class to take in text items.
+	iListItems = new(ELeave) CDesCArraySeg(KGranularity);
+	}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CLandmarksCategoriesModel* CLandmarksCategoriesModel::NewL()
+    {
+    CLandmarksCategoriesModel* self = 
+        new (ELeave) CLandmarksCategoriesModel();
+    CleanupStack::PushL(self);
+    self->ConstructL();
+    CleanupStack::Pop(self);
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CLandmarksCategoriesModel::~CLandmarksCategoriesModel()
+	{
+	delete iListItems;
+	}
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CLandmarksCategoriesModel::SetItemIds(RArray<TPosLmItemId>* aItemIds)
+    {
+    iItemIds = aItemIds;
+
+    // Empty descriptor model
+    iListItems->Reset();
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CDesCArraySeg* CLandmarksCategoriesModel::ItemList()
+    {
+    return iListItems;
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CLandmarksCategoriesModel::SetCurrentItem(TInt aIndex) 
+    {
+    iCurrentItem = aIndex;
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+TPosLmItemId CLandmarksCategoriesModel::CurrentItemId()
+    {
+    if (iCurrentItem < 0 || iCurrentItem > iItemIds->Count() - 1)
+        {
+        return KPosLmNullItemId;
+        }
+
+    return (*iItemIds)[iCurrentItem];
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+CIconList* CLandmarksCategoriesModel::CreateIconListL()
+    {
+    CIconList* iconList = new (ELeave) CArrayPtrFlat<CGulIcon>(KGranularity);
+    CleanupStack::PushL(TCleanupItem(ResetAndDestroyIcons, iconList));
+    
+    // Create the global category icon consisting of its image and mask.
+    TAknsItemID aknsItemId ={0,0};
+    CGulIcon* icon = AknsUtils::CreateGulIconL(NULL, aknsItemId,
+        KLandmarksMbmFileName, 
+        EMbmLmrefappCategory_global, 
+        EMbmLmrefappCategory_global_mask);
+    CleanupStack::PushL(icon);
+    icon->SetBitmapsOwnedExternally(EFalse); 
+    iconList->AppendL(icon);
+    CleanupStack::Pop(icon);
+
+    // Create the user defined category icon consisting of its image and mask.
+    icon = AknsUtils::CreateGulIconL(NULL, aknsItemId,
+        KLandmarksMbmFileName, 
+        EMbmLmrefappCategory_user, 
+        EMbmLmrefappCategory_user_mask);
+    CleanupStack::PushL(icon);
+    icon->SetBitmapsOwnedExternally(EFalse); 
+    iconList->AppendL(icon);
+    CleanupStack::Pop(icon);
+    
+    CleanupStack::Pop(); // iconList
+
+    // initialze iIconList. We don't need to delete any possible previous 
+    // iIconList since ownership is transferred to calling object.
+    iIconList = iconList;
+
+    return iconList;
+    }
+
+// -----------------------------------------------------------------------------
+// Refreshes a part of the model. Those categories that have been read from the 
+// database overwrites old categories. The model is refreshed incrementally 
+// from top to bottom.
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+void CLandmarksCategoriesModel::RepopulateModelL(
+    CArrayPtr<CPosLandmarkCategory>* aCategories)
+    {
+    TInt nrOfReadItems = aCategories->Count();
+
+    // Format and insert the read categories
+    for (TInt i = 0; i < nrOfReadItems; i++)
+        {
+        // Format name and icon
+        CPosLandmarkCategory* category = (*aCategories)[i];
+        HBufC* formattedName = FormatListItemLC(*category);
+
+        // Insert formatted descriptor into model
+        iListItems->AppendL(*formattedName);
+
+        CleanupStack::PopAndDestroy(formattedName);
+        }
+    }
+
+// -----------------------------------------------------------------------------
+// Formats a list item to the following format "X\tcategoryName"
+// where X = icon index
+// (other items were commented in a header).
+// -----------------------------------------------------------------------------
+//
+HBufC* CLandmarksCategoriesModel::FormatListItemLC(CPosLandmarkCategory& aCategory)
+    {
+    // Extract name
+    TPtrC name;
+    aCategory.GetCategoryName(name);
+    // 10 extra chars for icon index and column separator
+    const TInt KExtraChars = 10;
+    HBufC* formattedNameBuf = HBufC::NewLC(name.Length() + KExtraChars);
+    TPtr formattedNamePtr = formattedNameBuf->Des();
+
+    // Extract icon info
+    TPtrC mbmIconFile;
+    TInt iconIndex, maskIndex;
+    TInt res = aCategory.GetIcon(mbmIconFile, iconIndex, maskIndex);
+
+    // Format list item
+    if (res == KErrNone)
+        {
+        // Create icon and append it to icon array. 
+        TRAPD(err, AppendIconL(mbmIconFile, iconIndex, maskIndex));
+        if (err == KErrNone)
+            {
+            // Append the array index where the icon is appended
+            formattedNamePtr.AppendNum(iIconList->Count() - 1);
+            }
+        else // Unable to create icon, use appropriate default icon.
+            {
+            formattedNamePtr.AppendNum(DefaultIconIndex(aCategory));
+            }
+        }
+    else // res == KErrNotFound
+        {
+        formattedNamePtr.AppendNum(DefaultIconIndex(aCategory));
+        }
+    formattedNamePtr.Append(KTab);
+    formattedNamePtr.Append(name);
+
+    return formattedNameBuf;
+    }
+
+// -----------------------------------------------------------------------------
+// -----------------------------------------------------------------------------
+//
+void CLandmarksCategoriesModel::AppendIconL(
+    const TDesC& aMbmFile, 
+    TInt aIconOffset, 
+    TInt aMaskOffset)
+    {
+    TAknsItemID aknsItemId = {0,0};
+    CGulIcon* icon = AknsUtils::CreateGulIconL(NULL, aknsItemId,
+        aMbmFile, 
+        aIconOffset, 
+        aMaskOffset);
+    CleanupStack::PushL(icon);
+    icon->SetBitmapsOwnedExternally(EFalse);
+    iIconList->AppendL(icon);
+    CleanupStack::Pop(icon);
+    }
+
+