#include "stdafx.h"

struct CalendarToolData
{
	int x, y;
};

INT_PTR CALLBACK CalendarToolDlgProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	CalendarToolData *data = (CalendarToolData *)GetWindowLongPtr(hwnd, GWLP_USERDATA);
	switch (msg) {
	case WM_INITDIALOG:
		data = (CalendarToolData *)lParam;
		SetWindowLongPtr(hwnd, GWLP_USERDATA, (LONG_PTR)data);

		// This causes ALL miranda dialogs to have drop-shadow enabled. That's bad =(
		// SetClassLong(hwnd, GCL_STYLE, GetClassLong(hwnd, GCL_STYLE)|CS_DROPSHADOW);
		SetWindowPos(hwnd, HWND_TOP, data->x, data->y, 0, 0, SWP_NOSIZE);
		return TRUE;

	case WM_ACTIVATE:
		if (wParam == WA_INACTIVE)
			PostMessage(hwnd, WM_CLOSE, 0, 0);
		break;

	case WM_COMMAND:
		switch (LOWORD(wParam)) {
		case IDOK:
			EndDialog(hwnd, 0);
			return TRUE;

		case IDCANCEL:
			EndDialog(hwnd, 0);
			return TRUE;
		}
		break;

	case WM_NOTIFY:
		{
			LPNMHDR hdr = (LPNMHDR)lParam;
			if ((hdr->idFrom = IDC_MONTHCALENDAR1) && (hdr->code == MCN_SELECT)) {
				LPNMSELCHANGE lpnmsc = (LPNMSELCHANGE)lParam;
				struct tm tm_sel;
				tm_sel.tm_hour = tm_sel.tm_min = tm_sel.tm_sec = 0;
				tm_sel.tm_isdst = 1;
				tm_sel.tm_mday = lpnmsc->stSelStart.wDay;
				tm_sel.tm_mon = lpnmsc->stSelStart.wMonth - 1;
				tm_sel.tm_year = lpnmsc->stSelStart.wYear - 1900;
				EndDialog(hwnd, mktime(&tm_sel));
			}
			return TRUE;
		}

	case WM_CLOSE:
		DestroyWindow(hwnd);
		return TRUE;

	case WM_DESTROY:
		delete data;
		data = 0;
		SetWindowLongPtr(hwnd, GWLP_USERDATA, 0);
	}
	return FALSE;
}

time_t CalendarTool_Show(HWND hwnd, int x, int y)
{
	CalendarToolData *data = new CalendarToolData;
	data->x = x;
	data->y = y;
	return DialogBoxParam(g_plugin.getInst(), MAKEINTRESOURCE(IDD_CALENDARTOOL), hwnd, CalendarToolDlgProc, (LPARAM)data);
}