#include <nntp/groupdlg.hpp>
#include <nntp/entrydlg.hpp>
#include <common/gdipoint.hpp>
#include <common/purebmp.hpp>

GroupDialog::GroupDialog(const GUIWindow &parentWindow)
:	mhParent(parentWindow), mlpOwnerDrawList(0), mRGBGray(192,192,192),
	mBrush(mRGBGray)
{
  mInitDialogHandler.setCallback(this,&GroupDialog::initDialogHandler);
  mCommandHandler.setCallback(this,&GroupDialog::commandHandler);
	mTimerHandler.setCallback(this,&GroupDialog::timerHandler);
	mMeasureItemHandler.setCallback(this,&GroupDialog::measureItemHandler);
	mControlColorHandler.setCallback(this,&GroupDialog::controlColorHandler);
	insertHandler(VectorHandler::CommandHandler,&mCommandHandler);
  insertHandler(VectorHandler::InitDialogHandler,&mInitDialogHandler);
	insertHandler(VectorHandler::TimerHandler,&mTimerHandler);
	insertHandler(VectorHandler::ControlColorHandler,&mControlColorHandler);
}

GroupDialog::GroupDialog(const GroupDialog &someGroupDialog)
:	mhParent(someGroupDialog.mhParent), mlpOwnerDrawList(0), mRGBGray(192,192,192),
	mBrush(mRGBGray)
{ // no implementation			
  mInitDialogHandler.setCallback(this,&GroupDialog::initDialogHandler);
  mCommandHandler.setCallback(this,&GroupDialog::commandHandler);
	mTimerHandler.setCallback(this,&GroupDialog::timerHandler);
	mMeasureItemHandler.setCallback(this,&GroupDialog::measureItemHandler);
	mControlColorHandler.setCallback(this,&GroupDialog::controlColorHandler);
}

GroupDialog::~GroupDialog()
{
  if(mlpOwnerDrawList)delete mlpOwnerDrawList;
	removeHandler(VectorHandler::CommandHandler,&mCommandHandler);
  removeHandler(VectorHandler::InitDialogHandler,&mInitDialogHandler);
	removeHandler(VectorHandler::TimerHandler,&mTimerHandler);
	removeHandler(VectorHandler::ControlColorHandler,&mControlColorHandler);
}

WORD GroupDialog::performDialog(void)
{
	::DialogBoxParam(processInstance(),(LPSTR)"GroupDialog",mhParent,(DLGPROC)DWindow::DlgProc,(LONG)((DWindow*)this));
  return FALSE;
}

CallbackData::ReturnType GroupDialog::initDialogHandler(CallbackData &/*someCallbackData*/)
{
  setTimer(TimerID,100);
  return (CallbackData::ReturnType)FALSE;
}

CallbackData::ReturnType GroupDialog::timerHandler(CallbackData &/*someCallbackData*/)
{
  killTimer(TimerID);
	mlpOwnerDrawList=new OwnerDrawListCheck(*this,getItem(NewsGroupList),NewsGroupList,PureBitmap("CHECKBOXC",processInstance()),PureBitmap("CHECKBOX",processInstance()));
  getNewsGroups();  
	return (CallbackData::ReturnType)FALSE;
}

CallbackData::ReturnType GroupDialog::measureItemHandler(CallbackData &someCallbackData)
{
	LPMEASUREITEMSTRUCT lpmis((LPMEASUREITEMSTRUCT)someCallbackData.lParam());
	lpmis->itemHeight=20;
	return (CallbackData::ReturnType)TRUE;
}

CallbackData::ReturnType GroupDialog::controlColorHandler(CallbackData &/*someCallbackData*/)
{
	return (CallbackData::ReturnType)(GDIObj)mBrush;
}

CallbackData::ReturnType GroupDialog::drawItemHandler(CallbackData &someCallbackData)
{
	return (CallbackData::ReturnType)TRUE;
}

CallbackData::ReturnType GroupDialog::commandHandler(CallbackData &someCallbackData)
{
	switch(someCallbackData.wmCommandID())
	{
		case IDOK :
		  endDialog(TRUE);
      break;
		case IDCANCEL :
		  endDialog(FALSE);
			break;
		case AddButton :
		  handleAdd();
		  break;
		case DeleteButton :
		  handleDelete();
		  break;
		case NewsGroupList :
		  if(LBN_DBLCLK==someCallbackData.wmCommandCommand())handleModify();
			else if(LBN_SELCHANGE==someCallbackData.wmCommandCommand())handleChange();
		  break;
	}
  return (CallbackData::ReturnType)FALSE;
}

void GroupDialog::handleAdd(void)
{
  EntryDialog entryDialog(*this);
  String entryText;
	
	if(entryDialog.performDialog(entryText)&&mNewsReg.addGroup(entryText,FALSE))
	  mlpOwnerDrawList->insertString(entryText);
}

void GroupDialog::handleModify(void)
{
  LRESULT currSelection(mlpOwnerDrawList->getCurrent()); 
	String selString;
	String modString;

	if(LB_ERR==currSelection){::MessageBeep(0);return;}
  mlpOwnerDrawList->getText(selString,currSelection);
	modString=selString;
	EntryDialog entryDialog(*this);
	if(entryDialog.performDialog(modString))
	{
	  mNewsReg.removeGroup(selString);
		mNewsReg.addGroup(modString);
		mlpOwnerDrawList->deleteString(currSelection);
		mlpOwnerDrawList->insertString(modString);
	}
}

void GroupDialog::handleDelete(void)
{
  LRESULT currSelection(sendMessage(NewsGroupList,LB_GETCURSEL,0,0L));
	String selString;

	if(LB_ERR==currSelection){::MessageBeep(0);return;}
	mlpOwnerDrawList->getText(selString,currSelection);
	if(mNewsReg.removeGroup(selString))mlpOwnerDrawList->deleteString(currSelection);
}

void GroupDialog::getNewsGroups(void)
{
  Block<NewsGroup> subscriberList;

	mNewsReg.queryGroups(subscriberList);
	mlpOwnerDrawList->setRedraw(FALSE);
	mlpOwnerDrawList->resetContent();
	for(int itemIndex=0;itemIndex<subscriberList.size();itemIndex++)
	{
	  mlpOwnerDrawList->insertString(subscriberList[itemIndex].newsGroup());
		if(subscriberList[itemIndex].active())mlpOwnerDrawList->setSelection(itemIndex,TRUE);
	}
	mlpOwnerDrawList->setRedraw(TRUE);
}

void GroupDialog::handleChange(void)
{
  GDIPoint cursorPoint;
	String groupName;
	LONG itemIndex;
	LONG selState;

	::GetCursorPos(&((POINT&)cursorPoint));
	::ScreenToClient(getItem(NewsGroupList),&((POINT&)cursorPoint));
	itemIndex=mlpOwnerDrawList->itemFromPoint(cursorPoint);
	if(LB_ERR==itemIndex)return;
	mlpOwnerDrawList->getText(groupName,itemIndex);
	selState=mlpOwnerDrawList->getSel(itemIndex);
	mNewsReg.setGroup(groupName,selState);
}