--- a/extras/converter/Ui/Src/CCnvMainForm.cpp Tue Feb 02 00:11:26 2010 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,1259 +0,0 @@
-/*
-* Copyright (c) 2002 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:
-* This is the implementation of the class defined in CCnvMainForm.h
-*
-*/
-
-
-
-#include <barsread.h>
-#include <eikenv.h>
-#include <eikappui.h>
-#include <eikfpne.h>
-#include <avkon.hrh>
-#include <AknPopupField.h>
-#include <aknnotewrappers.h>
-#include <eikmenup.h>
-#include <s32file.h>
-#include <ErrorUI.h>
-#include <featmgr.h>
-
-#include <hlplch.h>
-#include <csxhelp/cnv.hlp.hrh>
-
-#include <CCnvConverter.h>
-#include <TCnvCategory.h>
-#include <Converter.rsg>
-#include "Converter.hrh"
-#include "CCnvApplication.h"
-#include "CCnvMainForm.h"
-#include "CCnvRatesForm.h"
-
-#include <aknnumed.h>
-#include <f32file.h>
-#include <e32std.h>
-
-_LIT( KCnvPlusSign, "+" );
-_LIT( KCnvMinusSign, "-" );
-_LIT( KCnvExponentSign, "E" );
-_LIT( KCnvDotSign, "." );
-
-_LIT( KCnvMinusInTheMiddle, "?*-?*" );
-_LIT( KCnvPlusInTheMiddle, "?*+?*" );
-_LIT( KCnvExponentInTheMiddle, "?*E?*" );
-_LIT( KCnvExponentInTheMiddleAndEnd, "?*E?*E?" );
-
- _LIT( KConverterFilename,"UnitConverter.ini");
- _LIT(KDelimiter, ":");
-
-CCnvMainForm::CCnvMainForm( TBool &aAlreadyDead )
-: iIsFullyConstructed( EFalse ),
-iHasNotifiedDiscFull( EFalse ),
-iLastUsedEditorId( EConverterEditor1 ),
-iHistoryTypeCategory( -1 ),
-iHistoryUnit1Category( -1 ),
-iHistoryUnit2Category( -1 ),
-iAlreadyDead( aAlreadyDead )
- {
- }
-
-CCnvMainForm::~CCnvMainForm()
- {
- if( iIsFullyConstructed )
- {
- SaveState();
- }
- delete iModel;
- delete iConversionTimer;
- delete iErrorUI;
- iAlreadyDead = ETrue;
-
- //remove the edwin observers
- CEikFloatingPointEditor* editor1 =
- static_cast< CEikFloatingPointEditor* >( Control( EConverterEditor1 ) );
- editor1->RemoveEdwinObserver(this);
-
- CEikFloatingPointEditor* editor2 =
- static_cast< CEikFloatingPointEditor* >( Control( EConverterEditor2 ) );
- editor2->RemoveEdwinObserver(this);
-
- }
-
-void CCnvMainForm::ConstructL()
- {
- CAknDialog::ConstructL( R_CNV_MAINFORM_MENUBAR );
-
- iErrorUI = CErrorUI::NewL( *iCoeEnv );
-
- TResourceReader reader;
- iEikonEnv->CreateResourceReaderLC( reader, R_CNV_MODEL );
- iModel = CCnvConverter::NewL( reader );
- CleanupStack::PopAndDestroy(); // reader
-
- iConversionTimer = CPeriodic::NewL( CActive::EPriorityStandard );
-
- iCurrencyCategoryId = iModel->CurrencyCategoryId();
- iIsFullyConstructed = ETrue;
- isEdwinUpdateText = EFalse;
-
- TFileName path;
- iEikonEnv->FsSession().PrivatePath(path);
- iEikonEnv->FsSession().MkDirAll(path);
-
- }
-
-void CCnvMainForm::GetHelpContext( TCoeHelpContext& aContext ) const
- {
- aContext.iMajor = KUidCnv;
- aContext.iContext = KCNV_HLP_MAIN_STATE;
- }
-
-// Handle commands from Options menu
-void CCnvMainForm::ProcessCommandL( TInt aCommandId )
- {
- // this hides the options menu etc.
- CAknForm::ProcessCommandL( aCommandId );
-
- switch( aCommandId )
- {
- case ECmdSetType:
- {
- CmdSetTypeL();
- break;
- }
-
- case ECmdSetUnit: // FLOWTHROUGH
- case ECmdSetCurrency:
- {
- CmdSetUnitL();
- break;
- }
-
- case ECmdRates:
- {
- CmdRatesL();
- break;
- }
- case EAknCmdHelp:
- {
- iEikonEnv->EikAppUi()->HandleCommandL( EAknCmdHelp );
- break;
- }
- case EEikCmdExit:
- {
- OkToExitL( EAknSoftkeyExit );
- break;
- }
-
- default:
- {
- break;
- }
- }
- }
-
-// Takes any action required when the current line is changed to aControlId.
-void CCnvMainForm::LineChangedL( TInt aControlId )
- {
-
- CEikButtonGroupContainer& cba = ButtonGroupContainer();
- cba.SetCommandSetL(R_CNV_MAINFORM_SOFTKEYS);
-
- if( ( aControlId == EConverterEditor1 ) ||
- ( aControlId == EConverterEditor2 ) )
- {
- CEikFloatingPointEditor* editor =
- static_cast< CEikFloatingPointEditor* >( Control( aControlId ) );
-
- // don't clear the selection if there is only '0' in the editor
- TBuf<KEditorTextMaxLength> editorText;
- editor->GetText(editorText);
-
- SynchronousConversionL();
- // iActiveEditorChanged = EFalse;
- }
- else if(aControlId == EConverterUnit1Popup ||
- aControlId == EConverterUnit2Popup)
- {
-
-
- // if focus is moved to unit popup from amount field
- // then try to do the conversion.
- // IsEditorValueValidL shows invalid value note if value is not valid
- TBool editorValueValid = IsEditorValueValidL(iLastUsedEditorId);
- if (editorValueValid && AreRatesValidL(ETrue))
- {
- SynchronousConversionL();
- }
- }
- if(aControlId == EConverterUnit1Popup ||
- aControlId == EConverterUnit2Popup ||
- aControlId == EConverterTypePopup)
- {
- //Makes the MSK visible
-
- cba.MakeCommandVisible(EAknSoftkeyChange,ETrue);
-
-
- }
- else if(aControlId ==EConverterEditor1 ||
- aControlId ==EConverterEditor2)
- {
-
-
- //makes the MSK invisible
-
- cba.MakeCommandVisible(EAknSoftkeyChange,EFalse);
-
- }
- cba.DrawNow();
- }
-
-void CCnvMainForm::DynInitMenuPaneL( TInt aResourceId,
- CEikMenuPane* aMenuPane )
- {
- // When click on LSK(option), the invalid value should be set to 0.
- TInt controlId( IdOfFocusControl() );
- if ( ( controlId == EConverterEditor1 ) || ( controlId == EConverterEditor2 ) )
- {
- if ( EditorValueCausesHold( controlId ) || !IsVaildNumberEntered( controlId ) )
- {
- SetFloatEditorValueL( controlId, 0.0 );
- }
- SynchronousConversionL( EFalse );
- }
-
- TUint currentType( iTypeCategory.CurrentValueIndex() );
-
- if( aResourceId == R_CNV_MAINFORM_MENUPANE )
- {
- if (!FeatureManager::FeatureSupported(KFeatureIdHelp))
- {
- aMenuPane->SetItemDimmed(EAknCmdHelp, ETrue);
- }
-
- if( currentType == iCurrencyCategoryId )
- {
- aMenuPane->SetItemDimmed( ECmdRates, EFalse ) ;
- }
-
- switch( IdOfFocusControl() )
- {
- case EConverterUnit1Popup:
- case EConverterUnit2Popup:
- {
- if( currentType == iCurrencyCategoryId )
- {
- aMenuPane->SetItemDimmed( ECmdSetCurrency, EFalse ) ;
- }
- else
- {
- aMenuPane->SetItemDimmed( ECmdSetUnit, EFalse ) ;
- }
- break;
- }
- default:
- {
- break;
- }
- }
- }
- }
-
-// Handles events to the three pop lists
-void CCnvMainForm::HandleControlEventL( CCoeControl* /*aControl*/,
- TCoeEvent aEventType )
- {
- // We are interested only about EEventStateChanged events
- if( aEventType != EEventStateChanged )
- {
- return;
- }
-
- TInt controlId( IdOfFocusControl() );
-
- if( !HasReallyChanged( controlId ) )
- {
- return;
- }
-
- switch( controlId )
- {
- case EConverterTypePopup:
- {
- HandleCategoryChangedL();
- break;
- }
- case EConverterUnit1Popup:
- case EConverterUnit2Popup:
- {
- HandleUnitChangedL();
- break;
- }
- //These have been moved to OfferKeyEventL
- case EConverterEditor1:
- case EConverterEditor2:
- {
- iLastUsedEditorId = controlId;
- if( (iActiveEditorChanged)&&
- ( isEdwinNavigated == EFalse || isEdwinUpdateText ) ) // Is there any navigation (or selection)
- //happening on the editor
- {
- AsynchronousConversion();
- }
- isEdwinNavigated = EFalse; //make the boolean false
- iActiveEditorChanged = ETrue;
- break;
- }
-
- default:
- {
- break;
- }
- }
- }
-
-TBool CCnvMainForm::SaveFormData()
- {
- // Always allow exit (data is saved in the destructor)
- return ETrue;
- }
-
-TBool CCnvMainForm::OkToExitL( TInt aButtonId )
- {
- TBool status( CAknDialog::OkToExitL( aButtonId ) );
- TInt controlId( IdOfFocusControl() );
- if( status && ( aButtonId == EAknSoftkeyExit ) )
- {
- iEikonEnv->EikAppUi()->HandleCommandL( EAknCmdExit );
- }
- else if(aButtonId == EAknSoftkeyChange)
- {
- if (controlId == EConverterTypePopup)
- {
- CmdSetTypeL();
- status = EFalse;
- }
- else if ((controlId == EConverterUnit1Popup) ||(controlId == EConverterUnit2Popup))
- {
- CmdSetUnitL();
- status = EFalse;
- }
- }
- else
- {
- status = EFalse;
- }
- return status;
- }
-
-void CCnvMainForm::PreLayoutDynInitL()
- {
- // Store pointers to the popup list controls
- // (makes further access easier/faster)
- iTypePopupCtrl =
- static_cast< CAknPopupField* >( Control( EConverterTypePopup ) );
- iUnit1PopupCtrl =
- static_cast< CAknPopupField* >( Control( EConverterUnit1Popup ) );
- iUnit2PopupCtrl =
- static_cast< CAknPopupField* >( Control( EConverterUnit2Popup ) );
-
-
- // Set values for the unit category popup control
- iModel->GetCategorylistAccessor( iTypeCategory );
- iTypePopupCtrl->SetQueryValueL( &iTypeCategory );
-
- // Load user selections from file (if any)
- LoadStateL();
-
- // Set initial values for the popup lists
- HandleCategoryChangedL();
-
- InitialiseChangeHistory();
-
- if (iUnit1Category.UnitFactor(iUnit1Category.CurrentValueIndex()) != 0.0 &&
- iUnit2Category.UnitFactor(iUnit2Category.CurrentValueIndex()) != 0.0)
- {
- SynchronousConversionL();
- }
-
- //Add wdwin observers for the two editors so that they can capture the Navigation
- //events and not do asynchronous conversion
- CEikFloatingPointEditor* editor1 =
- static_cast< CEikFloatingPointEditor* >( Control( EConverterEditor1 ) );
-
- CEikFloatingPointEditor* editor2 =
- static_cast< CEikFloatingPointEditor* >( Control( EConverterEditor2 ) );
-
- editor1->AddEdwinObserverL(this);
- editor2->AddEdwinObserverL(this);
-
-
- }
-
-TBool CCnvMainForm::HasReallyChanged( TInt controlId )
- {
- TBool changed( EFalse );
-
- switch( controlId )
- {
- case EConverterTypePopup:
- {
- if( iTypeCategory.CurrentValueIndex() != iHistoryTypeCategory )
- {
- changed = ETrue;
- iHistoryTypeCategory = iTypeCategory.CurrentValueIndex();
-
- // renew iHistoryUnit1Category and iHistoryUnit2Category
- iModel->GetCategoryAccessor( iUnit1Category, iHistoryTypeCategory );
- TUint HistoryUnit1Category;
- TUint HistoryUnit2Category;
- iUnit1Category.GetDefaultUnits( HistoryUnit1Category , HistoryUnit2Category );
- iHistoryUnit1Category = HistoryUnit1Category;
- iHistoryUnit2Category = HistoryUnit2Category;
- }
- break;
- }
- case EConverterUnit1Popup:
- {
- if( iUnit1Category.CurrentValueIndex() != iHistoryUnit1Category )
- {
- changed = ETrue;
- iHistoryUnit1Category = iUnit1Category.CurrentValueIndex();
- }
- break;
- }
- case EConverterUnit2Popup:
- {
- if( iUnit2Category.CurrentValueIndex() != iHistoryUnit2Category )
- {
- changed = ETrue;
- iHistoryUnit2Category = iUnit2Category.CurrentValueIndex();
- }
- break;
- }
-
- case EConverterEditor1:
- case EConverterEditor2:
- {
- changed = ETrue;
- break;
- }
-
- default:
- {
- break;
- }
- }
-
- return changed;
- }
-
-void CCnvMainForm::InitialiseChangeHistory()
- {
- iHistoryTypeCategory = iTypeCategory.CurrentValueIndex();
- iHistoryUnit1Category = iUnit1Category.CurrentValueIndex();
- iHistoryUnit2Category = iUnit2Category.CurrentValueIndex();
- }
-
-void CCnvMainForm::HandleCategoryChangedL()
- {
- TInt categoryId = iTypeCategory.CurrentValueIndex();
- iModel->GetCategoryAccessor( iUnit1Category, categoryId );
- iModel->GetCategoryAccessor( iUnit2Category, categoryId );
-
- TUint srcUnit, dstUnit;
- iUnit1Category.GetDefaultUnits( srcUnit, dstUnit );
- iUnit1Category.SetCurrentValueIndex( srcUnit );
- iUnit2Category.SetCurrentValueIndex( dstUnit );
-
- // Set arrays to popup lists and redraw them
- iUnit1PopupCtrl->SetQueryValueL( &iUnit1Category );
- iUnit2PopupCtrl->SetQueryValueL( &iUnit2Category );
- iUnit1PopupCtrl->DrawNow();
- iUnit2PopupCtrl->DrawNow();
-
- // Reset amount fields
- TReal zero( 0.0 );
- SetFloatingPointEditorValueL( EConverterEditor1, &zero );
- SetFloatingPointEditorValueL( EConverterEditor2, &zero );
-
- // when category's type is temperature the editor's value can't simply set to zero
- AsynchronousConversion();
-
- iLastUsedEditorId = EConverterEditor1;
- }
-
-void CCnvMainForm::HandleUnitChangedL()
- {
- iUnit1Category.SetDefaultUnits( iUnit1Category.CurrentValueIndex(),
- iUnit2Category.CurrentValueIndex() );
- SynchronousConversionL();
- }
-
-TBool CCnvMainForm::AreRatesValidL(TBool aShowNote)
- {
- TInt numInvalid( 0 );
- if( iUnit1Category.UnitFactor( iUnit1Category.CurrentValueIndex() )
- == 0.0 )
- {
- numInvalid++;
- SetFloatEditorValueL( EConverterEditor1, 0.0 );
- }
- if( iUnit2Category.UnitFactor( iUnit2Category.CurrentValueIndex() )
- == 0.0 )
- {
- numInvalid++;
- SetFloatEditorValueL( EConverterEditor2, 0.0 );
- }
-
- if(numInvalid)
- {
- CancelConversion();
-
- if (aShowNote)
- {
- TBool isPlural( EFalse );
- if( numInvalid > 1 )
- {
- isPlural = ETrue;
- }
-
- TInt resourceId(R_CNV_MAINFORM_NORATE );
- if( isPlural )
- {
- resourceId = R_CNV_MAINFORM_NORATE_PLURAL;
- }
- HBufC* label = iCoeEnv->AllocReadResourceLC( resourceId );
- CAknErrorNote* note = new( ELeave ) CAknErrorNote;
- note->ExecuteLD( *label );
- CleanupStack::PopAndDestroy(); // label;
- }
- return EFalse;
- }
- else
- {
- return ETrue;
- }
- }
-
-void CCnvMainForm::ShowInvalidValueNoteL(TInt aEditorId)
- {
- CancelConversion();
-
- SetFloatEditorValueL( aEditorId, 0.0 );
-
- HBufC* label = iCoeEnv->AllocReadResourceLC(
- R_CNV_MAINFORM_INVALIDVALUE );
- CAknErrorNote* note = new( ELeave ) CAknErrorNote;
- note->ExecuteLD( *label );
- CleanupStack::PopAndDestroy(); // label;
-
- SynchronousConversionL();
- }
-
-TBool CCnvMainForm::IsEditorValueValidL( TUint aEditorId )
- {
- TReal amount( FloatingPointEditorValue( aEditorId ) );
-
- TReal minimum;
- if( aEditorId == EConverterEditor1 )
- {
- minimum = iUnit1Category.UnitMinimum(
- iUnit1Category.CurrentValueIndex() );
- }
- else
- {
- minimum = iUnit2Category.UnitMinimum(
- iUnit2Category.CurrentValueIndex() );
- }
-
- if( amount < minimum )
- {
- ShowInvalidValueNoteL(aEditorId);
- return EFalse;
- }
- else
- {
- return ETrue;
- }
- }
-
-TBool CCnvMainForm::EditorValueCausesHold( TUint aEditorId )
- {
- CEikFloatingPointEditor* editor =
- static_cast< CEikFloatingPointEditor* >( Control( aEditorId ) );
-
- if( editor->TextLength() == 0 )
- {
- return ETrue;
- }
-
- TBuf< 12 > content;
- TLocale locale;
-
- // Not all the countries use '.' to express radix point, some use ','.
- // So use locale.DecimalSeparator() to get local symbol.
- TBuf<1> decimal;
- decimal.Append( locale.DecimalSeparator() );
- editor->Text()->Extract( content, 0, 12 );
- TInt contentLength( content.Length() );
- if ( !content.Compare( KCnvPlusSign ) )
- {
- return ETrue;
- }
- else if ( !content.Compare( KCnvMinusSign ) )
- {
- return ETrue;
- }
-
- else if ( !content.Compare( decimal ) )
- {
- return ETrue;
- }
- else if( contentLength > 1 &&
- content[ contentLength - 1 ] == KCnvExponentSign()[ 0 ] &&
- IsDigit( content[ contentLength - 2 ] ) &&
- content.Match( KCnvExponentInTheMiddle ) == KErrNotFound &&
- content.Match( KCnvMinusInTheMiddle ) == KErrNotFound &&
- content.Match( KCnvPlusInTheMiddle ) == KErrNotFound)
- {
- // If content ends with <digit>E with no minus, plus or exponent
- // sign in the middle
- return ETrue;
- }
- else if( contentLength > 2 &&
- ( content[ contentLength - 1 ] == KCnvMinusSign()[ 0 ] ||
- content[ contentLength - 1 ] == KCnvPlusSign()[ 0 ] ) &&
- content[ contentLength - 2 ] == KCnvExponentSign()[ 0 ] &&
- IsDigit( content[ contentLength - 3 ] ) &&
- content.Match( KCnvExponentInTheMiddleAndEnd ) == KErrNotFound &&
- content.Match( KCnvMinusInTheMiddle ) == KErrNotFound &&
- content.Match( KCnvPlusInTheMiddle ) == KErrNotFound )
- {
- // If content ends with <digit>E[+|-] with no minus, plus or exponent
- // sign in the middle
- return ETrue;
- }
- else if(contentLength > 12 &&
- content.Locate(locale.DecimalSeparator()) == contentLength - 1)
- {
- // content ends with decimal separator and there is no other
- // decimal separator
- return ETrue;
- }
-
-
- return EFalse;
- }
-
-void CCnvMainForm::CmdRatesL()
- {
- TBool wantsRelaunch;
- TBool shouldExit( EFalse );
- TBool needsSave( EFalse );
- do
- {
- wantsRelaunch = EFalse;
- TCnvCategory currencies;
- iModel->GetCategoryAccessor( currencies, iCurrencyCategoryId );
-
- CCnvRatesForm* rates = new( ELeave ) CCnvRatesForm( &wantsRelaunch,
- &shouldExit, &needsSave, currencies);
-
- CleanupStack::PushL( rates );
- rates->ConstructL();
- CleanupStack::Pop(); // rates
- rates->ExecuteLD( R_CNV_RATESFORM );
- }
- while( wantsRelaunch );
-
- if( needsSave )
- {
- SaveState();
- }
-
- if( !shouldExit )
- {
- // Reset the form (there might be changes in unit names..)
- HandleCategoryChangedL();
-
- DrawNow();
- }
- else
- {
- TryExitL( EAknSoftkeyExit );
- }
- }
-
-void CCnvMainForm::CmdSetTypeL()
- {
- TryChangeFocusToL( EConverterTypePopup );
- iTypePopupCtrl->ActivateSelectionListL();
- }
-
-void CCnvMainForm::CmdSetUnitL()
- {
- switch ( IdOfFocusControl() )
- {
- case EConverterUnit1Popup:
- {
- iUnit1PopupCtrl->ActivateSelectionListL();
- break;
- }
-
- case EConverterUnit2Popup:
- {
- iUnit2PopupCtrl->ActivateSelectionListL();
- break;
- }
-
- default:
- {
- break;
- }
- }
- }
-
-void CCnvMainForm::LoadStateL()
- {
- RFileReadStream in;
-
- TFileName filePath;
- TBuf<1> tempDes;
- TChar driveChar;
- User::LeaveIfError(iEikonEnv->FsSession().PrivatePath(filePath));
- iEikonEnv->FsSession().DriveToChar(KDefaultDrive, driveChar);
- tempDes.Append(driveChar);
- filePath.Insert(0,KDelimiter);
- filePath.Insert(0,tempDes);
- filePath.Append(KConverterFilename);
-
- TInt err( in.Open( iEikonEnv->FsSession(), filePath,
- EFileRead ) );
-
- if( !err )
- {
- TRAP( err, iModel->InternalizeL( in ) );
- if( !err )
- {
- TRAP( err, iTypeCategory.SetCurrentValueIndex( in.ReadInt8L() ) );
- }
- in.Close();
- }
- }
-
-void CCnvMainForm::SaveState()
- {
- RFileWriteStream out;
-
- TFileName filePath;
- TBuf<1> tempDes;
- TChar driveChar;
- TRAPD(errd, iEikonEnv->FsSession().PrivatePath(filePath));
- iEikonEnv->FsSession().DriveToChar(KDefaultDrive, driveChar);
- tempDes.Append(driveChar);
- if(!errd)
- {
-
- filePath.Insert(0,KDelimiter);
- filePath.Insert(0,tempDes);
- filePath.Append(KConverterFilename);
- }
-
- TInt err( out.Replace( iEikonEnv->FsSession(), filePath,
- EFileWrite ) );
-
- if( !err )
- {
- TRAP( err, iModel->ExternalizeL( out ) );
- if( !err )
- {
- TRAP( err, out.WriteInt8L( iTypeCategory.CurrentValueIndex() ) );
- }
- out.Close();
- }
-
- if( err && !iHasNotifiedDiscFull )
- {
- TRAP_IGNORE(iErrorUI->ShowGlobalErrorNoteL( err ) );
- iHasNotifiedDiscFull = ETrue;
- }
- }
-
-void CCnvMainForm::SynchronousConversionL( TBool aShowRateInvalideNote )
- {
- // Don't report an "invalid value" error. Cancel conversion.
- // if the field is empty (i.e. the user has used delete/backspace) etc.
- if( EditorValueCausesHold( iLastUsedEditorId ) )
- {
- // if one Editor is blank, set the other to 0.
- CEikFloatingPointEditor* editor =
- static_cast< CEikFloatingPointEditor* >( Control( iLastUsedEditorId ) );
- if( editor->TextLength() == 0 )
- {
- if( iLastUsedEditorId == EConverterEditor1)
- {
- SetFloatEditorValueL( EConverterEditor2, 0.0 );
- }
- if( iLastUsedEditorId == EConverterEditor2)
- {
- SetFloatEditorValueL( EConverterEditor1, 0.0 );
- }
- }
- return;
- }
-
- if ( !IsVaildNumberEntered( iLastUsedEditorId ) )
- {
- ShowInvalidValueNoteL( iLastUsedEditorId );
- }
-
-
- // PrepareForFocusLossL leaves if the component is not able to
- // parse the content. We trap it so that IsEditorValueValidL()
- // can check and report the situation correctly.
- TRAP_IGNORE( Control( iLastUsedEditorId )->PrepareForFocusLossL() );
- TInt CurrentControlId( IdOfFocusControl() );
- if( CurrentControlId == EConverterUnit1Popup )
- {
- IsEditorValueValidL( EConverterEditor1 );
- }
- else if (CurrentControlId == EConverterUnit2Popup)
- {
- IsEditorValueValidL( EConverterEditor2 );
- }
- else if (CurrentControlId == EConverterEditor2 )
- {
- if ( !IsVaildNumberEntered( EConverterEditor2 ) )
- {
- iLastUsedEditorId = CurrentControlId;
- ShowInvalidValueNoteL( EConverterEditor2 );
- }
- }
- else if (CurrentControlId == EConverterEditor1 )
- {
- if ( !IsVaildNumberEntered( EConverterEditor1 ) )
- {
- iLastUsedEditorId = CurrentControlId;
- ShowInvalidValueNoteL( EConverterEditor1 );
- }
- }
- TReal result( 0.0 );
-
- // send an argument to notify the AreRatesValidL() display a note dialog or not
- if (IsEditorValueValidL(iLastUsedEditorId))
- {
- if (AreRatesValidL(aShowRateInvalideNote))
- {
- TReal amount(FloatingPointEditorValue(iLastUsedEditorId));
- TUint unit1(iUnit1Category.CurrentValueIndex());
- TUint unit2(iUnit2Category.CurrentValueIndex());
-
- // RAPD( ignored, Control( iLastUsedEditorId )->PrepareForFocusLossL() );
-
-
- // do not reset the touch UI to standby state
- // CCoeEnv::Static()->SyncNotifyFocusObserversOfChangeInFocus();
-
-
- // Do the calculation and change the value for the related edit field
- ValueCalculationL(unit1, unit2, amount);
-
- CEikFloatingPointEditor* editor =
- static_cast<CEikFloatingPointEditor*> (Control(
- iLastUsedEditorId));
- TBuf<KEditorTextMaxLength> editorText;
- editor->GetText(editorText);
-
- // Use local value for different area
- TBuf<1> localeZero;
- localeZero.AppendNum(0);
- AknTextUtils::LanguageSpecificNumberConversion(localeZero);
- if (editorText.Length() > 1 && editorText[0] == localeZero[0])
- {
- TCursorSelection sel = editor->Selection();
- TInt removedZeroes = 0;
- // remove all leading zeroes
- while (editorText.Length() > 0 && editorText[0]
- == localeZero[0])
- {
- editorText.Delete(0, 1);
- ++removedZeroes;
- }
- // if too many zeroes removed, insert one.
- TLocale locale;
- if (editorText.Length() == 0 || TChar(editorText[0])
- == locale.DecimalSeparator())
- {
- editorText.Insert(0, localeZero);
- --removedZeroes;
- }
- editor->SetTextL(&editorText);
-
- // adjust the selection accroding to removed zeroes
- TInt anchor =
- (sel.iAnchorPos - removedZeroes > 0) ? sel.iAnchorPos
- - removedZeroes : 0;
- TInt cursor =
- (sel.iCursorPos - removedZeroes > 0) ? sel.iCursorPos
- - removedZeroes : 0;
- editor->SetSelectionL(cursor, anchor);
-
- if ( !IsVaildNumberEntered( iLastUsedEditorId ) )
- {
- ShowInvalidValueNoteL( iLastUsedEditorId );
- }
- // notify the touch window
- editor->SetCursorPosL(cursor, ETrue);
- editor->DrawNow();
- }
- }
- }
- }
-
-void CCnvMainForm::AsynchronousConversion()
- {
- CancelConversion();
- TCallBack cb( TimerCallback, this );
- iConversionTimer->Start( 750000, 0, cb );
- }
-
-void CCnvMainForm::CancelConversion()
- {
- iConversionTimer->Cancel();
- }
-
-TInt CCnvMainForm::TimerCallback( TAny* aMainForm )
- {
-
- CCnvMainForm* form = reinterpret_cast< CCnvMainForm* >( aMainForm );
-
- TRAP_IGNORE(form->SynchronousConversionL() );
-
- form->CancelConversion();
-
- return KErrNone;
- }
-
-
-
-// ----------------------------------------------------
-// CCnvMainForm::OfferKeyEventL
-// Keyevent process.
-// ----------------------------------------------------
-//
-TKeyResponse CCnvMainForm::OfferKeyEventL(const TKeyEvent& aKeyEvent,
- TEventCode aType)
- {
-
- if ( !IsFocused() )
- {
- if (aKeyEvent.iCode == EKeyEscape)
- {
- return CAknForm::OfferKeyEventL( aKeyEvent, aType );
- }
- return EKeyWasNotConsumed;
- }
-
- TInt controlId( IdOfFocusControl() );
-
- TBool hashKeyPressed = EFalse;
-
- // Use decimalChar instead of 46
- TLocale locale;
- TChar decimalChar = locale.DecimalSeparator();
- if ( aKeyEvent.iScanCode == EStdKeyHash || decimalChar == TChar( aKeyEvent.iCode ) )
- {
- hashKeyPressed = ETrue;
- }
-
- if( hashKeyPressed )
- {
- // If inputting through VKB or HWR, the event can be done only when aType is equal to EEventKey.
- // Besides, only when inputting the dot in VKB or HWR, aKeyEvent.iScanCode is equal to decimalChar.
- TBool VKBdotKeyPressed = EFalse;
- if ( ( aKeyEvent.iScanCode == decimalChar ) )
- {
- VKBdotKeyPressed = ETrue;
- }
- if ( ( aType == EEventKey) && ( !VKBdotKeyPressed ) )
- {
- return EKeyWasConsumed;
- }
- else if( aType == EEventKeyUp)
- {
- TKeyEvent keyevent( aKeyEvent );
- aType = EEventKey;
- keyevent.iCode = decimalChar;
- keyevent.iModifiers = 0;
- keyevent.iScanCode = 0;
- keyevent.iRepeats = 0;
- return static_cast< CEikFloatingPointEditor* >( Control( controlId ) )
- ->OfferKeyEventL(keyevent,aType);
- }
- else
- {//
- }
- }
-
- //Not a key event this case handles the menu and exit keys
- //when an invalid value is entered in the amount field
- if(aType == EEventKeyDown)
- {
- if( ( EConverterEditor1 == controlId )||
- ( EConverterEditor2 == controlId ) )
- {
-
- if( (aKeyEvent.iScanCode == EStdKeyDevice0) ||//menu Key
- (aKeyEvent.iScanCode == EStdKeyDevice1) )//Exit key
- {
- if( EditorValueCausesHold( controlId ) ||
- !IsVaildNumberEntered( controlId ) )
- {
- SetFloatEditorValueL( controlId, 0.0);
- }
- //return EKeyWasNotConsumed;
- }
- }
- }
-
- if ( aType != EEventKey )
- {
- // Return EKeyWasNotConsumed if OfferKeyEventL() does not handle any event.
- return EKeyWasNotConsumed;
- }
-
- if( ( EConverterEditor1 == controlId )||
- ( EConverterEditor2 == controlId ) )
- {
- //Just to see that -9E-99 doesnt appear when an invalid number is editor is
- //entered in the editor
-
- if(aKeyEvent.iScanCode == EStdKeyUpArrow ||
- aKeyEvent.iScanCode == EStdKeyDownArrow )
- {
- CancelConversion();
- if( EditorValueCausesHold( controlId ) )
- {
- SetFloatEditorValueL( controlId, 0.0);
- }
- if( !IsVaildNumberEntered( controlId ) )
- {
- ShowInvalidValueNoteL( controlId );
- }
- }
-
- iLastUsedEditorId = controlId;
-
- //For arrow keys asynchronous conversion not required
- // if (iActiveEditorChanged)
- // {
- /*if( ( aKeyEvent.iScanCode != EStdKeyRightArrow )&&
- ( aKeyEvent.iScanCode != EStdKeyLeftArrow )&&
- ( aKeyEvent.iScanCode != EStdKeyUpArrow )&&
- ( aKeyEvent.iScanCode != EStdKeyDownArrow )&&
- ( isEditKey == EFalse ) )
- {
- AsynchronousConversion();
- }*/
- //}
-
- //iActiveEditorChanged = ETrue;
-
- }
- return CAknForm::OfferKeyEventL(aKeyEvent, aType);
-
- }
-
-
-// ----------------------------------------------------
-// CCnvMainForm::IsVaildNumberEntered
-// Checks if a valid number is entered in the editor field and returns
-// ETrue if a vaild number is entered and
-// EFalse if an invalid number is entered
-// ----------------------------------------------------
-//
-
-TBool CCnvMainForm::IsVaildNumberEntered( TInt aEditorId )
- {
- CEikFloatingPointEditor* editor =
- static_cast< CEikFloatingPointEditor* >( Control( aEditorId ) );
-
- if ( editor->TextLength() == 0 )
- {
- return EFalse;
- }
-
- TReal real;
- CAknNumericEdwin::TValidationStatus validationStatus = editor->GetValueAsReal( real );
-
- // The enter number is not valid if GetValueAsReal function's return value is not EValueValid
- if ( validationStatus != CAknNumericEdwin::EValueValid /*&& validationStatus != CAknNumericEdwin::EValueTooLarge*/ )
- {
- return EFalse;
- }
- return ETrue;
- }
-
-
-
-// ----------------------------------------------------
-// CCnvMainForm::HandleEdwinEventL
-// Checks the Navigation events on the editor
-// ----------------------------------------------------
-//
-
-void CCnvMainForm::HandleEdwinEventL(CEikEdwin* /*aEdwin*/,TEdwinEvent aEventType)
- {
- if(EEventNavigation == aEventType)
- {
- isEdwinNavigated = ETrue;
- }
- if( aEventType == EEventTextUpdate )
- {
- isEdwinUpdateText = ETrue;
- }
-
- }
-
-// ----------------------------------------------------
-// CCnvMainForm::IsDigit
-// Converts the digit from any digit mode (devangiri or arabic)
-// to western digit and checks whether it is a valid digit or not.
-// ----------------------------------------------------
-//
-TBool CCnvMainForm::IsDigit(TUint aChar)
- {
- TBuf<1> digit;
- digit.Append(aChar);
-
- AknTextUtils::ConvertDigitsTo(digit , EDigitTypeWestern);
-
- TChar ch = digit[0];
- return ch.IsDigit();
- }
-
-// ----------------------------------------------------
-// CCnvMainForm::PrepareForFocusTransitionL
-// The Uikon framework calls this function immediately before focus move.
-// ----------------------------------------------------
-//
-void CCnvMainForm::PrepareForFocusTransitionL()
- {
- TInt controlId( IdOfFocusControl() );
- if ( ( EConverterEditor1 == controlId ) || ( EConverterEditor2 == controlId ) )
- {
-
- // record the last use editor id
- iLastUsedEditorId = controlId;
- CancelConversion();
- if ( EditorValueCausesHold( controlId ) )
- {
- SetFloatEditorValueL( controlId, 0.0 );
- }
-
- // Delete the radix point when there is no number behind it.
- else if ( IsVaildNumberEntered( controlId ) )
- {
- CEikFloatingPointEditor* editor =
- static_cast<CEikFloatingPointEditor*> ( Control( controlId ) );
- TBuf<KEditorTextMaxLength> editorText;
- editor->GetText( editorText );
- TLocale locale;
- TInt editorLength = editorText.Length();
-
- // Check if the last character is radix point.
- if ( editorText[ editorLength - 1 ] == locale.DecimalSeparator() )
- {
- editorText.Delete( editorLength - 1, 1 );
- editor->SetTextL( &editorText );
- }
- }
- }
- }
-
-// ----------------------------------------------------
-// CCnvMainForm::ValueCalculation
-// Do the calculation and change the value for the related edit field
-// ----------------------------------------------------
-//
-void CCnvMainForm::ValueCalculationL( TUint aUnit1Popup, TUint aUnit2Popup, TReal aMount )
- {
- TReal result( 0.0 );
- // Use "LastUnit1" and "LastUnit2" to insure that the second amount don't change if the last used editor
- // is the second and the category's units do not change.
- static TInt LastUnit1 = -1;
- static TInt LastUnit2 = -1;
-
- // According to the UI Spec:
- // 1. If the first conversion unit field is changed, a new conversion is calculated to the
- // second amount field of units, or vice versa.
- // 2. If the first edit field is changed, a new conversion is calculated to the second
- // edit field, or vice versa.
- if ( iLastUsedEditorId == EConverterEditor1 )
- {
- //the first unit is changed
- if ( ( ( IdOfFocusControl() != EConverterEditor1 ) && ( LastUnit1 != aUnit1Popup ) )
- || ( IdOfFocusControl() == EConverterTypePopup ) )
- {
- aMount = FloatingPointEditorValue( EConverterEditor1 );
- result = iUnit1Category.Convert( aUnit1Popup, aUnit2Popup, aMount );
- SetFloatEditorValueL( EConverterEditor2, result );
- }
- //the second unit is changed
- else if ( ( IdOfFocusControl() != EConverterEditor1 ) && ( LastUnit2 != aUnit2Popup ) )
- {
- aMount = FloatingPointEditorValue( EConverterEditor2 );
- result = iUnit1Category.Convert( aUnit2Popup, aUnit1Popup, aMount );
- SetFloatEditorValueL( EConverterEditor1, result );
- }
- //the first amount field is changed
- else
- {
- result = iUnit1Category.Convert( aUnit1Popup, aUnit2Popup, aMount );
- SetFloatEditorValueL( EConverterEditor2, result );
- }
- }
- else
- {
- //the first unit is changed
- if ( ( ( IdOfFocusControl() != EConverterEditor2 ) && ( LastUnit1 != aUnit1Popup ) )
- || ( IdOfFocusControl() == EConverterTypePopup ))
- {
- aMount = FloatingPointEditorValue( EConverterEditor1 );
- result = iUnit1Category.Convert( aUnit1Popup, aUnit2Popup, aMount );
- SetFloatEditorValueL( EConverterEditor2, result );
- }
- //the second unit is changed
- else if ( ( IdOfFocusControl() != EConverterEditor2 ) && ( LastUnit2 != aUnit2Popup ) )
- {
- aMount = FloatingPointEditorValue( EConverterEditor2 );
- result = iUnit1Category.Convert( aUnit2Popup, aUnit1Popup, aMount );
- SetFloatEditorValueL( EConverterEditor1, result );
- }
- //the second amount field is changed
- else
- {
- result = iUnit1Category.Convert( aUnit2Popup, aUnit1Popup, aMount );
- SetFloatEditorValueL( EConverterEditor1, result );
- }
- }
-
- // record units of the category at this time.
- LastUnit1 = aUnit1Popup;
- LastUnit2 = aUnit2Popup;
- }
-//End of file