#include "stdafx.h"
#include ".\inputdlg.h"
#include "resource.h"
const char * const CInputDlg::lpClassName="CInputDlg";
HINSTANCE CInputDlg::hInstance;
CInputDlg::CInputDlg(void)
{
	hWnd=hEdit=hStatic=hOk=hCancel=NULL;
	Value=0;
}
int CInputDlg::Register(HINSTANCE hInst)
{
	hInstance=hInst;
	WNDCLASSEX wc;
	wc.cbClsExtra=0;
	wc.cbSize=sizeof(wc);
	wc.cbWndExtra=0;
	wc.hbrBackground=HBRUSH(COLOR_BTNFACE+1);
	wc.hCursor=LoadCursor(NULL,IDC_ARROW);
	wc.hIcon=LoadIcon(NULL,IDI_APPLICATION);
	wc.hIconSm=LoadIcon(NULL,IDI_APPLICATION);
	wc.hInstance=hInstance;
	wc.lpfnWndProc=(WNDPROC)WinProc;
	wc.lpszClassName=lpClassName;
	wc.lpszMenuName=NULL;
	wc.style=CS_VREDRAW|CS_HREDRAW;
	return RegisterClassEx(&wc);
}
void CInputDlg::Create()
{
	int cx=GetSystemMetrics(SM_CXBORDER)*3+288 ;
	int cy=GetSystemMetrics(SM_CYBORDER)*3+105+GetSystemMetrics(SM_CYCAPTION);
	POINT p;
	GetCursorPos(&p);
	hWnd=CreateWindow(lpClassName,"實驗七",0,p.x ,p.y,cx,cy,hParent,NULL,hInstance,this);
	ShowWindow(hWnd,SW_SHOW);
	UpdateWindow(hWnd);
}
LRESULT CInputDlg::WinProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
	CInputDlg *that=(CInputDlg *)GetWindowLong(hWnd,GWL_USERDATA);
	if (msg==WM_CREATE)
	{
		SetWindowLong(hWnd,GWL_USERDATA,(LONG)((CREATESTRUCT *)lParam)->lpCreateParams);
		that=(CInputDlg *)((CREATESTRUCT *)lParam)->lpCreateParams;
		that->OnCreate(hWnd);
	}
	if (msg==WM_COMMAND)that->OnCommand(LOWORD(wParam));
	if (msg==WM_DESTROY) PostQuitMessage(that->RetId);
	if (msg==WM_SETFOCUS)SetFocus(that->hEdit);
	return DefWindowProc(hWnd,msg,wParam,lParam);
}
void CInputDlg::OnCommand(UINT wmId)
{
	if (wmId==IDOK)
	{
		RetId=1;
		char buf[16];
		GetWindowText(hEdit,buf,16);
		Value=Val(buf);
		wmId=IDCANCEL;
	}
	if (wmId==IDCANCEL)
	{
		EnableWindow(hParent,true);
		SetActiveWindow(hParent);
		DestroyWindow(hWnd);
	}
}
void CInputDlg::OnCreate(HWND hWnd)
{
	hFont=CreateFont(12,0,0,0,0,0,0,0,0,0,0,0,0,"宋體");
	hStatic=CreateWindow("Static",lpPrompt,WS_CHILD |WS_VISIBLE,21,21,150,21,hWnd,NULL,hInstance,0);
	SendMessage(hStatic,WM_SETFONT,(WPARAM)hFont,1);
	hEdit=CreateWindowEx(WS_EX_CLIENTEDGE,"Edit",Str(Value),WS_CHILD |WS_VISIBLE|ES_NUMBER,21,63,150,21,hWnd,NULL,hInstance,0);
	SendMessage(hEdit,WM_SETFONT,(WPARAM)hFont,1);
	SendMessage(hEdit,EM_SETLIMITTEXT,9,0);
	hOk=CreateWindow("Button","確定",WS_CHILD |WS_VISIBLE|BS_DEFPUSHBUTTON,192,21,75,21,hWnd,(HMENU)IDOK ,hInstance,0);
	SendMessage(hOk,WM_SETFONT,(WPARAM)hFont,1);
	hCancel=CreateWindow("Button","取消",WS_CHILD |WS_VISIBLE,192,63,75,21,hWnd,(HMENU)IDCANCEL,hInstance,0);
	SendMessage(hCancel,WM_SETFONT,(WPARAM)hFont,1);
	EnableWindow(hParent,false);
	RetId=0;
}
int CInputDlg::DoModal(HWND hWndParent,char * Prompt,int nVal)
{
	Value=nVal;
	lpPrompt=Prompt;
	hParent=hWndParent;
	Create();
	return Run();
}
int CInputDlg::Run()
{
	HACCEL hAccel=LoadAccelerators(hInstance,(LPCSTR)IDR_InputDlg);
	MSG msg;
	while (GetMessage(&msg,NULL,0,0))
	{
		if (!TranslateAccelerator(hWnd,hAccel,&msg))
		{
			TranslateMessage(&msg);
			DispatchMessage(&msg);
		}
	}
	return (int)msg.wParam;
}