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/*
* AUTHOR
* N. Nielsen
*
* LICENSE
* This software is in the public domain.
*
* The software is provided "as is", without warranty of any kind,
* express or implied, including but not limited to the warranties
* of merchantability, fitness for a particular purpose, and
* noninfringement. In no event shall the author(s) be liable for any
* claim, damages, or other liability, whether in an action of
* contract, tort, or otherwise, arising from, out of, or in connection
* with the software or the use or other dealings in the software.
*
* SUPPORT
* Send bug reports to: <nielsen@memberwebs.com>
*/
// ProgressDlg.cpp : Implementation of CProgressDlg
#include "stdafx.h"
#include "ProgressDlg.h"
// (Con|De)struction: -----------------------------------------------
ProgressDlg::ProgressDlg()
{
m_numFiles = 0;
m_numReplaces = 0;
m_flip = false;
m_hThread = NULL;
m_hEvent = NULL;
m_isCancelled = false;
InitializeCriticalSection(&m_sec);
}
ProgressDlg::~ProgressDlg()
{
DeleteCriticalSection(&m_sec);
if(m_hEvent)
CloseHandle(m_hEvent);
}
// threadProc: ---------------------------------------------------------
// Runs the dialog in another thread
static DWORD WINAPI threadProc(void* pv)
{
ProgressDlg* dlg = (ProgressDlg*)pv;
return dlg->DoModal(NULL, NULL);
}
// startDialog: --------------------------------------------------------
// Starts the dialog thread
HRESULT ProgressDlg::startDialog()
{
ASSERT(m_hThread == NULL);
HRESULT ret = S_OK;
if(m_hEvent)
CloseHandle(m_hEvent);
m_hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
DWORD threadID;
m_hThread = CreateThread(NULL, 0, threadProc, this, CREATE_SUSPENDED, &threadID);
if(!m_hThread)
ret = HRESULT_FROM_WIN32(::GetLastError());
else
ResumeThread(m_hThread);
// Wait for dialog to start up.
::WaitForSingleObject(m_hEvent, 10000);
CloseHandle(m_hEvent);
m_hEvent = NULL;
return S_OK;
}
// stopDialog: ----------------------------------------------------------
// Stops the dialog thread and closes the dialog
int ProgressDlg::stopDialog()
{
int ret = 0;
if(m_hThread && m_hWnd)
{
::PostMessage(m_hWnd, WM_CLOSE, 0, 0);
WaitForSingleObject(m_hThread, INFINITE);
}
else if(m_hThread)
{
EnterCriticalSection(&m_sec);
TerminateThread(m_hThread, -1);
}
if(m_hThread)
{
DWORD code = 0;
GetExitCodeThread(m_hThread, &code);
CloseHandle(m_hThread);
m_hThread = NULL;
ret = (int)code;
}
return 0;
}
// isCancelled: -----------------------------------------------------------
// Checks if user pressed cancel button
bool ProgressDlg::isCancelled()
{
bool ret = false;
EnterCriticalSection(&m_sec);
ret = m_isCancelled;
LeaveCriticalSection(&m_sec);
return ret;
}
// updateControls: --------------------------------------------------------
// Update dialog status
void ProgressDlg::updateControls()
{
if(IsWindow())
{
string status;
status.format(_T("%d replaces in %d files"), m_numReplaces, m_numFiles);
SetDlgItemText(IDC_STATUS, status);
}
}
// onReplaced: -------------------------------------------------------------
// Called when a new replacement was made
void ProgressDlg::onReplaced()
{
m_flip = !m_flip;
m_numReplaces++;
// Do flicker thing
if(IsWindow())
::ShowWindow(GetDlgItem(IDC_FLIP), m_flip ? SW_SHOW : SW_HIDE);
updateControls();
}
// onNewFile: --------------------------------------------------------------
// Called when a new file starts processing
void ProgressDlg::onNewFile(LPCTSTR fileName)
{
if(IsWindow())
SetDlgItemText(IDC_FILENAME, fileName);
m_numFiles++;
updateControls();
}
// setTitle: ---------------------------------------------------------------
// Set the title. If no window then just store it
void ProgressDlg::setTitle(const string& title)
{
m_title = title;
if(IsWindow())
SetWindowText(title);
}
// onInitDialog: ------------------------------------------------------------
// Dialog initialization. We clear the event that says we've
// started up.
LRESULT ProgressDlg::onInitDialog(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
EnterCriticalSection(&m_sec);
if(!m_title.empty())
SetWindowText(m_title.c_str());
if(m_hEvent)
SetEvent(m_hEvent);
CenterWindow(NULL);
LeaveCriticalSection(&m_sec);
return 1;
}
// onClose: ------------------------------------------------------------------
// Dialog was closed
LRESULT ProgressDlg::onClose(UINT uMsg, WPARAM wParam, LPARAM lParam, BOOL& bHandled)
{
EnterCriticalSection(&m_sec);
m_isCancelled = true;
LeaveCriticalSection(&m_sec);
// TODO: will this get called by NC area?
EndDialog(IDOK);
return 1;
}
// onCancel: ------------------------------------------------------------------
// User clicked cancel, set flag
LRESULT ProgressDlg::onCancel(WORD wNotifyCode, WORD wID, HWND hWndCtl, BOOL& bHandled)
{
EnterCriticalSection(&m_sec);
m_isCancelled = true;
LeaveCriticalSection(&m_sec);
EndDialog(IDCANCEL);
return 0;
}
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