/Samples/Chap05/AltWind/AltWind.d
D | 199 lines | 153 code | 41 blank | 5 comment | 2 complexity | 3496ae1252f2f21bb3e094558ae454bb MD5 | raw file
- /+
- + Copyright (c) Charles Petzold, 1998.
- + Ported to the D Programming Language by Andrej Mitrovic, 2011.
- +/
- module AltWind;
- import core.runtime;
- import std.string;
- import std.utf;
- auto toUTF16z(S)(S s)
- {
- return toUTFz!(const(wchar)*)(s);
- }
- pragma(lib, "gdi32.lib");
- pragma(lib, "winmm.lib");
- import core.sys.windows.mmsystem;
- import core.sys.windows.windef;
- import core.sys.windows.winuser;
- import core.sys.windows.wingdi;
- extern(Windows)
- int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int iCmdShow)
- {
- int result;
- try
- {
- Runtime.initialize();
- result = myWinMain(hInstance, hPrevInstance, lpCmdLine, iCmdShow);
- Runtime.terminate();
- }
- catch(Throwable o)
- {
- MessageBox(null, o.toString().toUTF16z, "Error", MB_OK | MB_ICONEXCLAMATION);
- result = 0;
- }
- return result;
- }
- int myWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int iCmdShow)
- {
- string appName = "AltWind";
- HWND hwnd;
- MSG msg;
- WNDCLASS wndclass;
- wndclass.style = CS_HREDRAW | CS_VREDRAW;
- wndclass.lpfnWndProc = &WndProc;
- wndclass.cbClsExtra = 0;
- wndclass.cbWndExtra = 0;
- wndclass.hInstance = hInstance;
- wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
- wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
- wndclass.hbrBackground = cast(HBRUSH)GetStockObject(WHITE_BRUSH);
- wndclass.lpszMenuName = NULL;
- wndclass.lpszClassName = appName.toUTF16z;
- if(!RegisterClass(&wndclass))
- {
- MessageBox(NULL, "This program requires Windows NT!", appName.toUTF16z, MB_ICONERROR);
- return 0;
- }
- hwnd = CreateWindow(appName.toUTF16z, // window class name
- "Alternate and Winding Fill Modes", // window caption
- WS_OVERLAPPEDWINDOW, // window style
- CW_USEDEFAULT, // initial x position
- CW_USEDEFAULT, // initial y position
- CW_USEDEFAULT, // initial x size
- CW_USEDEFAULT, // initial y size
- NULL, // parent window handle
- NULL, // window menu handle
- hInstance, // program instance handle
- NULL); // creation parameters
- ShowWindow(hwnd, iCmdShow);
- UpdateWindow(hwnd);
- while (GetMessage(&msg, NULL, 0, 0))
- {
- TranslateMessage(&msg);
- DispatchMessage(&msg);
- }
- return msg.wParam;
- }
- extern(Windows)
- LRESULT WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) nothrow
- {
- scope (failure) assert(0);
- static int cxChar, cxCaps, cyChar, cxClient, cyClient, iMaxWidth;
- HDC hdc;
- int i, x, y, iVertPos, iHorzPos, iPaintStart, iPaintEnd;
- PAINTSTRUCT ps;
- TEXTMETRIC tm;
- enum aptFigure =
- [
- POINT(10,70), POINT(50,70), POINT(50,10), POINT(90,10), POINT(90,50),
- POINT(30,50), POINT(30,90), POINT(70,90), POINT(70,30), POINT(10,30)
- ];
- POINT[10] apt;
- switch(message)
- {
- case WM_CREATE:
- {
- hdc = GetDC(hwnd);
- scope(exit)
- ReleaseDC(hwnd, hdc);
- GetTextMetrics(hdc, &tm);
- cxChar = tm.tmAveCharWidth;
- cxCaps = (tm.tmPitchAndFamily & 1 ? 3 : 2) * cxChar / 2;
- cyChar = tm.tmHeight + tm.tmExternalLeading;
- // Save the width of the three columns
- iMaxWidth = 40 * cxChar + 22 * cxCaps;
- return 0;
- }
- case WM_SIZE:
- {
- cxClient = LOWORD(lParam);
- cyClient = HIWORD(lParam);
- apt[0].x = cxClient / 4;
- apt[0].y = cyClient / 2;
- apt[1].x = cxClient / 2;
- apt[1].y = cyClient / 4;
- apt[2].x = cxClient / 2;
- apt[2].y = 3 * cyClient / 4;
- apt[3].x = 3 * cxClient / 4;
- apt[3].y = cyClient / 2;
- return 0;
- }
- case WM_PAINT:
- {
- hdc = BeginPaint(hwnd, &ps);
- scope(exit)
- {
- EndPaint(hwnd, &ps);
- }
- SelectObject(hdc, GetStockObject(GRAY_BRUSH));
- foreach (index; 0 .. 10)
- {
- apt[index].x = cxClient * aptFigure[index].x / 200;
- apt[index].y = cyClient * aptFigure[index].y / 100;
- }
- SetPolyFillMode(hdc, ALTERNATE);
- Polygon(hdc, apt.ptr, apt.length);
- foreach (index; 0 .. 10)
- {
- apt[index].x += cxClient / 2;
- }
- SetPolyFillMode(hdc, WINDING);
- Polygon(hdc, apt.ptr, apt.length);
- return 0;
- }
- case WM_DESTROY:
- PostQuitMessage(0);
- return 0;
- default:
- }
- return DefWindowProc(hwnd, message, wParam, lParam);
- }
- void DrawBezier(HDC hdc, POINT[4] apt)
- {
- PolyBezier(hdc, apt.ptr, apt.length);
- MoveToEx(hdc, apt[0].x, apt[0].y, NULL);
- LineTo(hdc, apt[1].x, apt[1].y);
- MoveToEx(hdc, apt[2].x, apt[2].y, NULL);
- LineTo(hdc, apt[3].x, apt[3].y);
- }