void CGameReviewDialog::OnPrev()
{
if (m_nPlayRound == 0)
return;
// get the game record
CGameRecord* pGameRecord = pDOC->GetGameRecord(m_nGameIndex);
// undo the last trick
CEasyBDoc* pDoc = pDOC;
int numCardsPlayed = pDoc->GetNumCardsPlayedInRound();
// return if there's nothing to undo
if ((m_nPlayRound == 0) && (numCardsPlayed == 0))
return;
// decrement the play round one extra if at the end of play record
// play round = # of rounds played so far
// undo cards from the current trick, if it has cards
if (numCardsPlayed > 0)
{
pDoc->UndoTrick();
m_nPlayRound--;
m_nPlayIndex -= numCardsPlayed;
}
// see if we're at the start
if (m_nPlayRound == 0)
{
// can't go back any further
SetPlayRound(0);
// hide dummy
pDOC->ExposeDummy(FALSE);
//
pVIEW->PostMessage(WM_COMMAND, WMS_RESET_DISPLAY, 1L);
pMAINFRAME->SetStatusMessage("Start of play record.");
pDOC->UpdatePlayHistory();
return;
}
// if past the first round, clear the previous trick as well
pDoc->UndoPreviousTrick();
m_nPlayRound--;
m_nPlayIndex -= 4;
if (m_nPlayIndex < 0)
m_nPlayIndex = 0;
//
pDoc->ResetDisplay();
pVIEW->DisplayTricks();
// then re-display the trick
OnNext();
}
void CGameReviewDialog::OnFirst()
{
// undo the last trick
CEasyBDoc* pDoc = pDOC;
int numCardsPlayed = pDoc->GetNumCardsPlayedInRound();
// return if there's nothing to undo
if ((m_nPlayRound == 0) && (numCardsPlayed == 0))
return;
// suppress flashing
CWaitCursor wait;
pDoc->SuppressPlayHistoryUpdate(TRUE);
pMAINFRAME->SetStatusMessage(_T("Backing up to the beginning of play..."));
// decrement the play round one extra if at the end of play record
if (m_nPlayRound > m_numTricksAvailable)
m_nPlayRound--;
// undo cards from the current trick
if (numCardsPlayed > 0)
{
pDoc->UndoTrick();
m_nPlayRound--;
m_nPlayIndex -= numCardsPlayed;
}
// and all previous tricks
while(m_nPlayRound > 0)
{
pDoc->UndoPreviousTrick();
m_nPlayRound--;
m_nPlayIndex -= 4;
}
// and reset
SetPlayRound(0);
// hide dummy
pDOC->ExposeDummy(FALSE);
// and reset display
pDoc->ResetDisplay();
pMAINFRAME->ClearStatusMessage();
pDoc->SuppressPlayHistoryUpdate(FALSE);
pDOC->UpdatePlayHistory();
// done
return;
}
