void HandleMenu(HWND hWnd, DWORD opt) {
switch(opt) {
case ID_SCALE_CONNECT:
cEditBox.SetText("Trying to communicate with the scale...");
mScale.EditItem(ID_SCALE_CONNECT, "&Connecting...", MF_DISABLED);
_beginthread(ScaleConnect, 0, (void*) hWnd);
break;
case ID_FILE_NEW:
if (!bSaved && vMealItems.size() > 0) {
switch(MessageBox(hWnd, "You haven't saved the current meal, would you like to?","Hold Up!", MB_YESNOCANCEL | MB_ICONINFORMATION)) {
case IDYES:
if (CheckAndSave()==-1) break;
case IDNO:
cListBox.Clear();
vMealItems.clear();
strcpy(cSaveName, "");
cWindow.SetTitle("MealTrack - Untitled");
cButton.SetText("Start Meal");
break;
case IDCANCEL:
default:
break;
}
} else {
cListBox.Clear();
vMealItems.clear();
strcpy(cSaveName, "");
cWindow.SetTitle("MealTrack - Untitled");
cButton.SetText("Start Meal");
}
break;
case ID_FILE_SAVE:
GetSaveFile(hWnd);
if (vMealItems.size() >= 1) CheckAndSave();
char tmp[313];
sprintf(tmp, "MealTrack - %s", strrchr(cSaveName,'\\') + 1);
cWindow.SetTitle(tmp);
break;
case ID_FILE_EXIT:
PostMessage(hWnd, WM_CLOSE, 0, 0);
break;
case ID_SCALE_ZERO:
if (scale != NULL) scale->Zero();
break;
}
}
EditBox*
FormWindow::CreateEditBox(const char* lbl_text, int ax, int ay, int aw, int ah, DWORD aid, DWORD pid)
{
EditBox* edit = 0;
ActiveWindow* parent = this;
if (pid)
parent = FindControl(pid);
edit = new(__FILE__,__LINE__) EditBox(parent, ax, ay, aw, ah, aid);
if (edit) {
edit->SetForm(this);
edit->SetText(lbl_text);
if (!shown)
edit->Hide();
}
return edit;
}
void ScaleConnect(void* args) {
//If we aren't connected, connect!
if (scale == NULL) {
//Create a new scale and attempt to connect
scale = new Scale("COM1");
if (!scale->IsConnected()) {
delete scale;
scale = new Scale();
}
if (!scale->IsConnected()) {
char err[256];
sprintf(err, "Failed to connect! ERROR: %i", scale->GetError());
mScale.EditItem(ID_SCALE_CONNECT, "&Connect");
cEditBox.SetText(err);
delete scale;
scale = NULL;
return;
}
//Begin the thread which sends a message to the Window's event and loops it
hScaleThread = (HANDLE)_beginthread(GetScaleReading, 0, args);
//Switch the menu to allow for disconnect & other features
SendMessage((HWND)args, WM_SCALE_CONNECTED, 0, 0);
} else {
//Deactivate the meal
bMealActive = 0;
//Delete the scale which will disconnect it
delete scale;
scale = NULL;
SendMessage((HWND)args, WM_SCALE_DISCONNECTED, 0, 0);
}
}
// This function is called by the Windows function DispatchMessage()
LRESULT CALLBACK WindowProcedure (HWND hWnd, UINT mMsg, WPARAM wParam, LPARAM lParam)
{
switch (mMsg)
{
case WM_CREATE:
break;
case WM_SIZE:
break;
case WM_COMMAND:
//If handle is the window, handle the menu
if (hWnd == cWindow.GetHandle())
HandleMenu(hWnd, LOWORD(wParam));
if (LOWORD(wParam) == IDR_START_BUTTON) {
//Check if we have a connection to the scale
if (scale != NULL && scale->IsConnected()) {
//Check if we just finished a meal as well, if we didn't, start one
if (!bMealActive) { //If the meal is not active, start it or reset it
if (vMealItems.size() == 0) {
_beginthread(Meal, 0, (void*)hWnd);
} else {
vMealItems.clear();
HandleMenu(hWnd, ID_FILE_NEW);
}
} else { //Otherwise, stop it
if (strlen(cSaveName)<=1) GetSaveFile(hWnd);
bMealActive = 0;
}
}
}
break;
case WM_CLOSE:
if (strlen(cSaveName) > 1 && !SaveMeal()) {
if (CheckAndSave() == -1) break;
} else if (!bSaved && vMealItems.size() > 0) {
switch(MessageBox(hWnd, "You haven't saved the current meal, would you like to?","Hold Up!", MB_YESNOCANCEL | MB_ICONINFORMATION)) {
case IDYES:
if (CheckAndSave() == -1) break;
case IDNO:
if (scale) delete scale;
DestroyWindow(hWnd);
hWnd = NULL;
break;
case IDCANCEL:
break;
default:
break;
}
} else {
if (hWnd != NULL) {
if (scale) delete scale;
DestroyWindow(hWnd);
}
}
break;
case WM_DESTROY:
PostQuitMessage(0);
break;
case WM_UPDATE_READING:
//Destroy any spare messages if scale is null
if (scale == NULL) break;
//Retreive the information and print it on the button
char tBuf[32];
sprintf(tBuf, "Connected on %s - %.2f %s %s", scale->GetName(), scale->GetWeight(), scale->GetUnit(), (scale->IsStable()?"":"(unstable)"));
cEditBox.SetText(tBuf);
hScaleThread = (HANDLE)_beginthread(GetScaleReading, 0, (void*) hWnd);
break;
case WM_SCALE_CONNECTED:
ToggleScaleMenu(1);
break;
case WM_SCALE_DISCONNECTED:
ToggleScaleMenu(0);
cEditBox.SetText("Disconnected");
break;
default:
return DefWindowProc (hWnd, mMsg, wParam, lParam);
}
return 0;
}