ciderpress/util/ProgressCancelDialog.h
2014-11-17 21:37:36 -08:00

84 lines
2.4 KiB
C++

/*
* CiderPress
* Copyright (C) 2007 by faddenSoft, LLC. All Rights Reserved.
* See the file LICENSE for distribution terms.
*/
/*
* Display a modeless progress dialog with a "cancel" button.
*
* The user of this class must define a dialog with at least an IDCANCEL
* button.
*/
#ifndef UTIL_PROCESSCANCELDIALOG_H
#define UTIL_PROCESSCANCELDIALOG_H
/*
* This class must be allocated on the heap.
*
* Create with the dialog ID, thermometer ID, parent window, and a pointer to
* a boolean that will be set to "true" if the user hits "cancel".
*/
class ProgressCancelDialog : public CancelDialog {
public:
ProgressCancelDialog(void) : fProgressID(0) {}
virtual ~ProgressCancelDialog(void) {}
BOOL Create(bool* pCancelFlag, int dialogID, int progressID,
CWnd* pParentWnd = NULL)
{
fProgressID = progressID;
return CancelDialog::Create(pCancelFlag, dialogID, pParentWnd);
}
enum { kProgressResolution = 1000 };
/*
* Update the progress meter.
*
* Returns IDOK if all is well, IDCANCEL if the "cancel" button was hit.
*/
int SetProgress(int newVal)
{
ASSERT(newVal >= 0 && newVal <= kProgressResolution);
CProgressCtrl* pProgress = (CProgressCtrl*) GetDlgItem(fProgressID);
if (pProgress != NULL) {
/* would be nice to only set the range once */
pProgress->SetRange(0, kProgressResolution);
pProgress->SetPos(newVal);
}
if (*fpCancelFlag) {
// dim the button to ack receipt
CWnd* pWnd = GetDlgItem(IDCANCEL);
pWnd->EnableWindow(FALSE);
return IDCANCEL;
} else
return IDOK;
}
private:
BOOL OnInitDialog(void) {
CancelDialog::OnInitDialog();
ASSERT(fProgressID != 0);
CProgressCtrl* pProgress = (CProgressCtrl*) GetDlgItem(fProgressID);
ASSERT(pProgress != NULL);
/* for some reason this doesn't work if I do it here */
//pProgress->SetRange(0, kProgressResolution);
pProgress->SetFocus(); // get focus off of the Cancel button
return FALSE; // accept our focus
}
// CancelDialog traps OnCancel
// ModelessDialog traps OnCancel/OnOK
//void PostNcDestroy(void) { delete this; }
int fProgressID;
};
#endif /*UTIL_PROCESSCANCELDIALOG_H*/