frame.cpp

可编程计算器

#include ".\frame.h"

HWND CFrame::m_Hwnd = NULL;
string CFrame::m_String;
string CFrame::m_Result;


HRESULT CALLBACK WindowProc( HWND hwnd,UINT msg,WPARAM wparam,LPARAM lparam )
{
	return ( CFrame::WndProc( hwnd,msg,wparam,lparam ) );
}

CFrame::CFrame(void)
{
	m_Hwnd = NULL;
	m_ButtonWidth = 30;
	m_ButtonHeight = 20;
	w = m_ButtonWidth + m_ButtonWidth / 2 + 10;
	h = m_ButtonHeight + m_ButtonHeight / 2;
	x = 35;
	y = 80;
	m_WindowWidth = 5 * w;
	m_WindowHeight = 8 * h;
}

CFrame::~CFrame(void)
{
}

void CFrame::Init( HINSTANCE hinstance )
{
	m_Hinstance = hinstance;

	WNDCLASS winclass;
	winclass.cbClsExtra = 0;
	winclass.cbWndExtra = 0;
	winclass.hbrBackground = CreateSolidBrush(RGB(0xa6, 0xca, 0xf0));//( HBRUSH )GetStockObject( BLACK_BRUSH );
	winclass.hCursor = LoadCursor( NULL,IDC_ARROW );
	winclass.hIcon = LoadIcon( NULL,IDI_APPLICATION );
	winclass.hInstance = hinstance;
	winclass.lpfnWndProc = WindowProc;
	winclass.lpszClassName = "CLASS";
	winclass.lpszMenuName = NULL;
	winclass.style = 0;

	if( !RegisterClass( &winclass) )
	{
		MessageBox( 0,"Window class initlize failed!",0,0 );
		exit( 0 );
	}

	m_Hwnd = CreateWindow( "CLASS","Compute",WS_EX_TOPMOST | WS_SYSMENU,0,0,m_WindowWidth,m_WindowHeight,0,0,NULL,0 );

	if( m_Hwnd == NULL )
	{
		MessageBox( 0,"create window failed!",0,0 );
		exit( 0 );
	}

	ShowWindow( m_Hwnd,SW_SHOW );

	//create button
	//::CreateWindowEx(0, "button", "0", WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON,
	//	50, 30,m_ButtonWidth,m_ButtonHeight, m_Hwnd, (HMENU)IDC_BUTTON0, hinstance, NULL);
	CreateButton( "0",( HMENU )IDC_BUTTON0,x,y+3*h );
	CreateButton( "(",( HMENU )IDC_BUTTON_LEF,x+w,y+3*h );
	CreateButton( ")",( HMENU )IDC_BUTTON_RIG,x+2*w,y+3*h );

	CreateButton( "1",( HMENU )IDC_BUTTON1,x,y+2*h );
	CreateButton( "2",( HMENU )IDC_BUTTON2,x+w,y+2*h );
	CreateButton( "3",( HMENU )IDC_BUTTON3,x+2*w,y+2*h );

	CreateButton( "4",( HMENU )IDC_BUTTON4,x ,y + h);
	CreateButton( "5",( HMENU )IDC_BUTTON5,x+w,y + h );
	CreateButton( "6",( HMENU )IDC_BUTTON6,x+2*w,y+h );

	CreateButton( "7",( HMENU )IDC_BUTTON7,x,y );
	CreateButton( "8",( HMENU )IDC_BUTTON8,x+w,y );
	CreateButton( "9",( HMENU )IDC_BUTTON9,x+2*w,y );

	CreateButton( "+",( HMENU )IDC_BUTTON_ADD,x+3*w,y );
	CreateButton( "-",( HMENU )IDC_BUTTON_MIN,x+3*w,y+h );
	CreateButton( "*",( HMENU )IDC_BUTTON_MUL,x+3*w,y+2*h );
	CreateButton( "/",( HMENU )IDC_BUTTON_DEV,x+3*w,y+3*h );

	CreateButton( "=",( HMENU )IDC_BUTTON_EQU,x+w,y-h );
	CreateButton( "bac",( HMENU )IDC_BUTTON_BAC,x,y - h );

	CreateWindowEx(0, "static", "", WS_CHILD|WS_VISIBLE|SS_SUNKEN,
		x-20,10,8 * m_ButtonWidth,m_ButtonHeight, m_Hwnd, (HMENU)IDC_EDIT, m_Hinstance, NULL);

	CreateWindowEx(0, "static", "", WS_CHILD|WS_VISIBLE|SS_SUNKEN,
		x+2*w,y-h,3 * m_ButtonWidth - 5,m_ButtonHeight, m_Hwnd, (HMENU)IDC_EDIT1, m_Hinstance, NULL);
}

void CFrame::CreateButton( char* title,HMENU menu,int x,int y )
{
	CreateWindowEx(0, "button", title, WS_CHILD|WS_VISIBLE|BS_PUSHBUTTON,
		x, y,m_ButtonWidth,m_ButtonHeight, m_Hwnd, (HMENU)menu, m_Hinstance, NULL);
}

HRESULT CFrame::WndProc( HWND hwnd,UINT msg,WPARAM wparam,LPARAM lparam )
{
	switch( msg )
	{
	case WM_DESTROY:
		{
			PostQuitMessage( 0 );
		}break;

	case WM_KEYDOWN:
		{
			if( VK_ESCAPE == wparam )
			{
				DestroyWindow( hwnd );
			}
		}break;

	case WM_COMMAND:
		{
			OnCommand( wparam,lparam );
		}break;
	}

	return ( DefWindowProc( hwnd,msg,wparam,lparam ) );
}

void CFrame::Run()
{
	MSG msg;
	ZeroMemory( &msg,sizeof( msg ) );

	while( GetMessage( &msg,0,0,0 )  )
	{
		
		TranslateMessage( &msg );
		DispatchMessage( &msg );
	}
}

void CFrame::OnCommand( WPARAM wparam,LPARAM lparam )
{
	char sz[10];
	switch( LOWORD( wparam ) )
	{
	case IDC_BUTTON0:
		{
			m_String += '0';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON1:
		{
			m_String += '1';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON2:
		{
			m_String += '2';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON3:
		{
			m_String += '3';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON4:
		{
			m_String += '4';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON5:
		{
			m_String += '5';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON6:
		{
			m_String += '6';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON7:
		{
			m_String += '7';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON8:
		{
			m_String += '8';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON9:
		{
			m_String += '9';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;
	case IDC_BUTTON_ADD:
		{
			m_String += '+';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON_MIN:
		{
			m_String += '-';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON_MUL:
		{
			m_String += '*';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON_DEV:
		{
			m_String += '/';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON_LEF:
		{
			m_String += '(';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON_RIG:
		{
			m_String += ')';
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
		}break;

	case IDC_BUTTON_EQU:
		{
			string temp;
			temp = m_String;
			temp += '#';
			string result;
			main( temp,result );
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT1),result.c_str() );
			m_String.clear();
		}break;
	
	case IDC_BUTTON_BAC:
		{
			int a = m_String.size();
			if( a >= 1 )
			{
			a -= 1;
			m_String.erase( a );
			SetWindowText( GetDlgItem(m_Hwnd, IDC_EDIT),m_String.c_str() );
			}
		}break;

	}
}