C++ nuiEvent::Cancel方法代码示例

void nuiMatrixView::Renamed(const nuiEvent& rEvent)
{
  NGL_ASSERT(rEvent.mpUser);
  nuiLabelRenamer* renamer = (nuiLabelRenamer*)rEvent.mpUser;
  nglString contents = renamer->GetText();
  contents.Trim();
  if (contents.IsEmpty())
  { 
    rEvent.Cancel();
    return;
  }
    
  double value = contents.GetCDouble();
  
  // report the new value to all selected items
  if (mSelectedItems.size() != 0)
  {
    std::map<nuiMatrixViewItem*, bool>::iterator it;
    for (it = mSelectedItems.begin(); it != mSelectedItems.end(); ++it)
    {
      nuiMatrixViewItem* item = it->first;
      item->SetValue(value);
    }
  }
  
  // report the new value to the single targeted item
  else
    mClickedItem->SetValue(value);
    
  ValueChanged();
        
  rEvent.Cancel();
}

void ThreadInspectorTest::CreateLLThread(const nuiEvent& rEvent)
{
  // create thread
  nglString name;
  name.Format(_T("LLtest%d"), mThreadCount);
  mThreadCount++;
  TITLLthread* pThread = new TITLLthread(name);

  // create UI control in the list
  nuiHBox* pBox = new nuiHBox(0);
  mpLLList->AddChild(pBox);
  pBox->SetBorder(0, 3);

  // store the relation widget box -> thread
  mLLThreads[pBox] = pThread;

  pThread->Start();

  nglString label;
  label.Format(_T("LLthread '%ls' [0x%x]"), pThread->GetName().GetChars(), pThread->GetID());
  nuiLabel* pLabel = new nuiLabel(label);
  pBox->AddCell(pLabel);

  pBox->AddCell(pThread->InitGUI());

  rEvent.Cancel();
}

void MainWindow::OnButtonPressed(const nuiEvent& rEvent)
{
  NGL_OUT("MainWindow::OnButtonPressed");
  int64 tag = (int64)rEvent.mpUser;

  nglString msg;

  switch (tag)
  {
    case TAG_BUTTON1:
      msg = _T("a simple button\nwith a 'nuiCenter' position");
      break;
    case TAG_BUTTON2:
      msg = _T("the same simple button\nbut with a 'nuiFill' position");
      break;
    case TAG_BUTTON3:
      msg = _T("a simple button\nwith an image inside");
      break;
    case TAG_BUTTON4:
      msg = _T("a rollover button\nusing three decorations");
      break;
  }

  mpLabel->SetText(msg);

  rEvent.Cancel();
}

void MainWindow::OnTogglePressed(const nuiEvent& rEvent)
{
  NGL_OUT("MainWindow::OnTogglePressed");
  int64 tag = (int64)rEvent.mpUser;

  nglString msg;

  switch (tag)
  {
    case TAG_TOGGLEBUTTON1:
      msg = _T("a simple togglebutton, pressed");
      break;
    case TAG_TOGGLEBUTTON2:
      msg = _T("a simple togglebutton, released");
      break;
    case TAG_TOGGLEBUTTON3:
      msg = _T("a checkbox, pressed");
      break;
    case TAG_TOGGLEBUTTON4:
      msg = _T("a checkbox, released");
      break;
  }

  mpLabel->SetText(msg);

  rEvent.Cancel();
}

void ProjectGenerator::OnSourceTextChanged(const nuiEvent& rEvent)
{
  mpTimer->Stop();
  mpTimer->Start(false);
    
  rEvent.Cancel();
}

void MainWindow::OnMenuCommand(const nuiEvent& rEvent)
{
  uint64 ID = (uint64)rEvent.mpUser;
  nglString msg;
  msg.Format(_T("event item New%d"), ID);
  MyCommand(msg);
  rEvent.Cancel();
}

void ProjectGenerator::OnBrowseTarget(const nuiEvent& rEvent)
{
  nglPath path = nglPath(mProjectTargetPath).GetParent();
  
  nuiDialogSelectDirectory* pDialog = new nuiDialogSelectDirectory(GetMainWindow(), _T("ENTER THE NEW PROJECT TARGET"), path, nglPath(_T("/")));
  mEventSink.Connect(pDialog->DirectorySelected, &ProjectGenerator::OnTargetSelected, (void*)pDialog);
  rEvent.Cancel();
}

void TimeLabel::OnTimerTick(const nuiEvent& rEvent)
{
  nglString text(GetPosition());
  text += (_T(" / "));
  text += GetLength();
  
  SetText(text);
  rEvent.Cancel();
}

void FrameEditor::OnFrameMouseMoved(const nuiEvent& rEvent)
{
	nuiMouseMovedEvent* pEvent = (nuiMouseMovedEvent*)&rEvent;
	// set the information nuiAttribute. It will automatically update the gui
	nuiPoint point(pEvent->mX, pEvent->mY);

	GetMainWindow()->mAttributeMouseCoord.Set(point);
  rEvent.Cancel();
}

void nuiColorSelector::SwatchSelected(const nuiEvent& rEvent)
{
  nuiPane* pPane = (nuiPane*) rEvent.mpUser;
  SetCurrentColor(pPane->GetFillColor());
  
  // send event
  SwatchColorChanged(); 
  rEvent.Cancel();
}

void MainWindow::OnRadioPressed(const nuiEvent& rEvent)
{
  int64 index = (int64)rEvent.mpUser;

  nglString msg;
  msg.Format(_T("radio button #%d"), index);
  mpLabel->SetText(msg);

  rEvent.Cancel();
}

void MainWindow::OnItemActivated(const nuiEvent& rEvent)
{
  uint32 token;
  nuiGetTokenValue<uint32>(mpList->GetSelectedToken(), token);
  
  nglString message;
  message.Format(_T("activated item num %d"), token);
  mpOutput->SetText(message);

  rEvent.Cancel();
}

//
// just a trick to make the two scrollbars move together
//
void MainWindow::OnScrollbarMoved(const nuiEvent& rEvent)
{
  // get the scrollbar given as the event's user parameter
  nuiScrollView* pView = (nuiScrollView*)rEvent.mpUser;
  
  // guess who is the other scrollbar
  nuiScrollView* pOtherView = (pView == mpViews[0])? mpViews[1] : mpViews[0];
  
  // ask the other one to take the position that the first one is giving
  pOtherView->GetScrollBar(nuiVertical)->GetRange().SetValue(pView->GetScrollBar(nuiVertical)->GetRange().GetValue());
  rEvent.Cancel();
}

void nuiColorSelector::RGBSliderChanged(const nuiEvent& rEvent)
{
  nuiSize red = (float)mpRedSlider->GetRange().GetValue();
  nuiSize green = (float)mpGreenSlider->GetRange().GetValue();
  nuiSize blue = (float)mpBlueSlider->GetRange().GetValue();
  nuiSize alpha = (float)mpRGBAlphaSlider->GetRange().GetValue();
  
  SetCurrentColor(nuiColor(red, green, blue, alpha));
  
  // send event
  RGBColorChanged();
  
  rEvent.Cancel();
}

void MainWindow::OnAddItem(const nuiEvent& rEvent)
{
  uint32 ID = mUniqueID;
  mUniqueID++;

  nglString name;
  name.Format(_T("New%d"), ID);
  nuiMainMenuItem* pNew = new nuiMainMenuItem(name);
  mpCurrentTestMenu->AddChild(pNew);
  mEventSink.Connect(pNew->Activated, &MainWindow::OnMenuCommand, (void*)ID);

  mpLastItem = pNew;

  rEvent.Cancel();
}