btcon_appview.cpp

C++实现的BlueTooth

/*****************************************************************************

 COPYRIGHT All rights reserved Sony Ericsson Mobile Communications AB 2005.



 The software is the copyrighted work of Sony Ericsson Mobile Communications AB.

 The use of the software is subject to the terms of the end-user license

 agreement which accompanies or is included with the software. The software is

 provided "as is" and Sony Ericsson specifically disclaim any warranty or

 condition whatsoever regarding merchantability or fitness for a specific

 purpose, title or non-infringement. No warranty of any kind is made in

 relation to the condition, suitability, availability, accuracy, reliability,

 merchantability and/or non-infringement of the software provided herein.



 *****************************************************************************/


// BTCon_AppView.cpp
//
//

#include <e32math.h>  // Math
#include <e32std.h>   // Time
#include <eikcmbut.h> // CEikTextButton
#include <eiklabel.h> // CEikLabel
#include <eiktxlbx.h> // CEikTextListBox
#include <eiktxlbm.h> // CTextListBoxModel


#include <apgcli.h>   // RApaLsSession
#include <apacmdln.h> // CApaCommandLine
#include <instapp.h>  // KUninstallCommandLineTail
#include <apmstd.h>   // TDataType

#include "BTCon.h"
#include "BTCon_AppView.h"
#include "BTCon_AppUi.h"

const TInt KTotalEditorControls(4);


_LIT(KHelloText,      "Hello in Bluetooth example");
_LIT(KTextEditInfo,   "Received:");
_LIT(KButtonCmdInfo,  "Send message:");
_LIT(KTextHej,        "Hej");
_LIT(KTextAloha,      "Aloha");
_LIT(KTextBrum,       "Brum");
_LIT(KReceived,       "received: ");


CBTConAppView* CBTConAppView::NewL(const TRect& aRect)
  {
  CBTConAppView * self = new(ELeave) CBTConAppView;
  CleanupStack::PushL(self);
  self->ConstructL(aRect);
  CleanupStack::Pop();
  return self;
  }
	
CBTConAppView::~CBTConAppView()
  {
  if(iListBox)
    delete iListBox;
  
  if(iButtonHej)
    delete iButtonHej;
  if(iButtonAloha)
    delete iButtonAloha;
  if(iButtonBrum)
    delete iButtonBrum;
  }

void CBTConAppView::UpdateEditText(const TDesC& aText)
  {
  CDesCArray* array = ((CDesCArray *)iListBox->Model()->ItemTextArray());
  array->AppendL(aText);
  iListBox->SetCurrentItemIndex(array->Count()-1);

  // Handle the addition of items to the list box model. 
  iListBox->HandleItemAdditionL(); // This also redraws the list box.

  iListBox->UpdateScrollBarsL();
  }

void CBTConAppView::SetMyName(const TDesC& aText)
  {
  iMyName.Delete(0,iMyName.Length());
  iMyName.Append(aText);
  DrawNow();
  }

void CBTConAppView::ClearList()
  {
  ((CDesCArray *)iListBox->Model()->ItemTextArray())->Reset();
  iListBox->SetCurrentItemIndex(0);
  iListBox->HandleItemAdditionL();
  iListBox->UpdateScrollBarsL();
  }


void CBTConAppView::HandleControlEventL(CCoeControl* aControl,
                                        TCoeEvent  aEventType)
  {
  if( aEventType == EEventStateChanged )
    {
    if(aControl == iButtonHej )
      iAppUi->SendMsgL(KTextHej);
    else if(aControl == iButtonAloha )
      iAppUi->SendMsgL(KTextAloha);
    else if(aControl == iButtonBrum )
      iAppUi->SendMsgL(KTextBrum);
    }
  }  

void CBTConAppView::ConstructL(const TRect& aRect)
  {
  CreateWindowL();
  SetRect(aRect);

  iAppUi = static_cast<CBTConAppUi*>(iEikonEnv->EikAppUi());

  BuildObjects();

  ActivateL();
  }

void CBTConAppView::Draw(const TRect& /*aRect*/) const
  {
        // Window graphics context
  CWindowGc& gc = SystemGc();
        // Start with a clear screen
  gc.Clear();

  TRect rect = Rect();

  const CFont* font = iEikonEnv->LegendFont();
  TInt fontHeight = font->HeightInPixels();
  gc.UseFont(font);
  gc.DrawText(iMyName,
              rect,
              fontHeight,
              CGraphicsContext::ECenter);
  rect.Move(2,0);
  gc.DrawText(KTextEditInfo,
              rect,
              2*fontHeight,
              CGraphicsContext::ELeft);
  gc.DrawText(KButtonCmdInfo,
              rect,
              8*fontHeight + Size().iHeight/2,
              CGraphicsContext::ELeft);
  gc.DiscardFont();
  }

void CBTConAppView::BuildObjects()
  {
  TTime time;
  time.UniversalTime();
  TInt64 randSeed(time.Int64());
  // let it generate first few numbers, just to init
  for( TInt i(0); i<20; ++i )
    Math::Rand( randSeed );

  TInt result = Math::Rand( randSeed );

  iMyName.Num(result);
  iMyName.Delete(5, iMyName.Length()-5);
  iMyName.Insert(0,_L("My Name: "));

  TInt fontHeight = iEikonEnv->LegendFont()->HeightInPixels();

  iListBox = new (ELeave) CEikTextListBox;
  iListBox->ConstructL(this, 0);
  iListBox->SetContainerWindowL( *this );
  // set look and behaviour:
  // - set scrolling capabilities
  iListBox->CreateScrollBarFrameL();
  iListBox->ScrollBarFrame()->SetScrollBarVisibilityL(CEikScrollBarFrame::EAuto,
                                                      CEikScrollBarFrame::EAuto);
  // - set listbox bordes
  iListBox->SetBorder(TGulBorder::EDeepRaisedWithOutline); 
  // - set position
  iListBox->SetExtent(TPoint(2, 2*fontHeight),
                      TSize(Size().iWidth-4, Size().iHeight - 7*fontHeight));
  CDesCArray* array = ((CDesCArray *)iListBox->Model()->ItemTextArray());
  // Set the item at index 0
  iListBox->SetCurrentItemIndex(0);
    // Set the list box control with a focus
  iListBox->SetFocus(ETrue);
  iListBox->ActivateL();
  array->AppendL(KHelloText);

  iButtonHej = new (ELeave) CEikTextButton;
  iButtonHej->SetContainerWindowL(*this);
  iButtonHej->SetTextL(_L("Hej"));
  iButtonHej->SetExtent(TPoint(10, 8*fontHeight + 2 + Size().iHeight/2),
                        TSize(60,20));
  iButtonHej->SetBehavior(EEikButtonReportsOnPointerDown);
  iButtonHej->SetObserver(this);

  iButtonAloha = new (ELeave) CEikTextButton;
  iButtonAloha->SetContainerWindowL(*this);
  iButtonAloha->SetTextL(_L("Aloha"));
  iButtonAloha->SetExtent(TPoint(70, 8*fontHeight + 2 + Size().iHeight/2),
                          TSize(60,20));
  iButtonAloha->SetBehavior(EEikButtonReportsOnPointerDown);
  iButtonAloha->SetObserver(this);

  iButtonBrum = new (ELeave) CEikTextButton;
  iButtonBrum->SetContainerWindowL(*this);
  iButtonBrum->SetTextL(_L("Brum"));
  iButtonBrum->SetExtent(TPoint(130, 8*fontHeight + 2 + Size().iHeight/2),
                         TSize(60,20));
  iButtonBrum->SetBehavior(EEikButtonReportsOnPointerDown);
  iButtonBrum->SetObserver(this);
  }

TInt CBTConAppView::CountComponentControls() const
  {
  return KTotalEditorControls;
  }

CCoeControl* CBTConAppView::ComponentControl(TInt aIndex) const
  {
  switch (aIndex)
    {
    case 0 :
      return iListBox;
    case 1 :
      return iButtonHej;
    case 2 :
      return iButtonAloha;
    case 3 :
      return iButtonBrum;

    default:
        return 0;
    }
  }