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https://github.com/reactos/reactos.git
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1fc041c91a
Add code that demonstrates the use of the lpOrder and lpCaretPos struct members of GCP_RESULTS w/ and w/o GCP_REORDER flag. Changed demo string literals to arrays containing character unicode values.
346 lines
11 KiB
C
346 lines
11 KiB
C
/*
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* PROJECT: ReactOS Tests
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* FILE: rostests/win32/user32/biditext/biditext.c
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* PURPOSE: Demonstrates how ExtTextOut and GetCharacterPlacement
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* handle bidirectional text strings via certain selection
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* of flags provided to them.
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*
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* PROGRAMMER: Program skeleton: https://github.com/TransmissionZero/MinGW-Win32-Application
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* Test code by Baruch Rutman
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*/
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#include "biditext.h"
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/* Prototypes */
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DWORD WINAPI LpkGetCharacterPlacement(HDC hdc, LPCWSTR lpString, INT uCount, INT nMaxExtent,
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GCP_RESULTSW *lpResults, DWORD dwFlags, DWORD dwUnused);
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BOOL WINAPI LpkExtTextOut(HDC hdc, int x, int y,
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UINT fuOptions, const RECT *lprc, LPCWSTR lpString,
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UINT uCount , const INT *lpDx, INT unknown);
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/* Global instance handle */
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HINSTANCE g_hInstance = NULL;
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/* Our application entry point */
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int WINAPI
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wWinMain(HINSTANCE hInstance,
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HINSTANCE hPrevInstance,
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LPTSTR lpszCmdLine,
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int nCmdShow)
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{
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INITCOMMONCONTROLSEX icc;
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HWND hWnd;
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HACCEL hAccelerators;
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MSG msg;
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/* Assign global HINSTANCE */
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g_hInstance = hInstance;
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/* Initialise common controls */
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icc.dwSize = sizeof(icc);
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icc.dwICC = ICC_WIN95_CLASSES;
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InitCommonControlsEx(&icc);
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/* Register our main window class, or error */
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if (!RegisterMainWindowClass())
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{
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MessageBox(NULL, TEXT("Error registering main window class."), TEXT("Error"), MB_ICONERROR | MB_OK);
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return 0;
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}
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/* Create our main window, or error */
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if (!(hWnd = CreateMainWindow()))
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{
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MessageBox(NULL, TEXT("Error creating main window."), TEXT("Error"), MB_ICONERROR | MB_OK);
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return 0;
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}
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/* Load accelerators */
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hAccelerators = LoadAccelerators(hInstance, MAKEINTRESOURCE(IDR_ACCELERATOR));
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/* Show main window and force a paint */
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ShowWindow(hWnd, nCmdShow | SW_MAXIMIZE);
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UpdateWindow(hWnd);
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/* Main message loop */
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while (GetMessage(&msg, NULL, 0, 0) > 0)
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{
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if (!TranslateAccelerator(hWnd, hAccelerators, &msg))
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{
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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}
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return (int)msg.wParam;
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}
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/* Dialog procedure for our "about" dialog */
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INT_PTR CALLBACK AboutDialogProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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switch (uMsg)
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{
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case WM_COMMAND:
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{
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WORD id = LOWORD(wParam);
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switch (id)
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{
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case IDOK:
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case IDCANCEL:
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{
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EndDialog(hwndDlg, (INT_PTR)id);
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return (INT_PTR)TRUE;
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}
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}
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break;
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}
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case WM_INITDIALOG:
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{
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return (INT_PTR)TRUE;
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}
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}
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return (INT_PTR)FALSE;
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}
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/* Show our "about" dialog */
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void ShowAboutDialog(HWND owner)
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{
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DialogBox(g_hInstance, MAKEINTRESOURCE(IDD_ABOUTDIALOG), owner, &AboutDialogProc);
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}
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/* Main window class and title */
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static LPCTSTR MainWndClass = TEXT("BiDi Test");
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/* Window procedure for our main window */
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LRESULT CALLBACK MainWndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
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{
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switch (msg)
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{
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case WM_COMMAND:
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{
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WORD id = LOWORD(wParam);
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switch (id)
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{
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case ID_HELP_ABOUT:
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{
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ShowAboutDialog(hWnd);
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return 0;
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}
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case ID_FILE_EXIT:
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{
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DestroyWindow(hWnd);
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return 0;
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}
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}
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break;
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}
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case WM_GETMINMAXINFO:
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{
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/* Prevent our window from being sized too small */
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MINMAXINFO *minMax = (MINMAXINFO*)lParam;
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minMax->ptMinTrackSize.x = 220;
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minMax->ptMinTrackSize.y = 110;
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return 0;
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}
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/* Item from system menu has been invoked */
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case WM_SYSCOMMAND:
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{
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WORD id = LOWORD(wParam);
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switch (id)
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{
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/* Show "about" dialog on about system menu item */
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case ID_HELP_ABOUT:
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{
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ShowAboutDialog(hWnd);
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return 0;
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}
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}
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break;
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}
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case WM_PAINT:
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{
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PAINTSTRUCT ps;
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HDC hdc = BeginPaint(hWnd, &ps);
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enum
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{
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ALEF = 0x5D0,
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BET,
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GIMEL,
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DALET,
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HEY,
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VAV,
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ZAYIN,
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HET,
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TET,
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YUD
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};
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const WCHAR szString[] = {ALEF, BET, GIMEL, DALET, HEY, 'A', 'B', 'C', 'D', VAV, ZAYIN, HET, TET, YUD, 0};
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const WCHAR szReversedString[] = {HEY, DALET, GIMEL, BET, ALEF, 'A', 'B', 'C', 'D', YUD, TET, HET, ZAYIN, VAV, 0};
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int Len = wcslen(szString);
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int i, xpos, tempLength;
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WCHAR tempString[20] = { 0 };
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WCHAR Glyphs[100] = { 0 };
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WCHAR OutString[100] = { 0 };
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INT lpCaretPos[100] = { 0 };
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UINT lpOrder[100] = { 0 };
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GCP_RESULTSW Results = { 0 };
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Results.lStructSize = sizeof(Results);
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Results.lpOutString = OutString;
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Results.lpGlyphs = Glyphs;
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Results.nGlyphs = 100;
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Results.lpCaretPos = lpCaretPos;
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Results.lpOrder = lpOrder;
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SetBkMode(hdc, TRANSPARENT);
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TextOutW(hdc, 10, 10, L"Proper (string being used):", 27);
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TextOutW(hdc, 200, 10, szString, 14);
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TextOutW(hdc, 10, 30, L"Reversed (example):", 19);
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TextOutW(hdc, 200, 30, szReversedString, 14);
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TextOutW(hdc, 10, 50, L"String with NULL LpkETO call (not reversed):", 44);
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LpkExtTextOut(hdc, 10, 70, 0, NULL, szString, Len, NULL, 0);
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TextOutW(hdc, 10, 90, L"String with ETO_IGNORELANGUAGE LpkETO call (not reversed):", 58);
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LpkExtTextOut(hdc, 10, 110, ETO_IGNORELANGUAGE, NULL, szString, Len, NULL, 0);
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TextOutW(hdc, 10, 130, L"String with GCP_REORDER and ETO_GLYPH_INDEX LpkGCP call (not reversed):", 71);
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LpkGetCharacterPlacement(hdc, szString, Len, 0, &Results, GCP_REORDER, 0);
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LpkExtTextOut(hdc, 10, 150, ETO_GLYPH_INDEX, NULL, Glyphs, Results.nGlyphs, NULL, 0);
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TextOutW(hdc, 10, 170, L"String with GCP_REORDER and ETO_IGNORELANGUAGE LpkGCP call (not reversed, lpOutString):", 87);
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ExtTextOutW(hdc, 10, 190, ETO_IGNORELANGUAGE, NULL, OutString, Results.nGlyphs, NULL);
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TextOutW(hdc, 10, 210, L"String without GCP_REORDER and ETO_GLYPH_INDEX LpkGCP call (reversed):", 70);
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LpkGetCharacterPlacement(hdc, szString, Len, 0, &Results, 0, 0);
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LpkExtTextOut(hdc, 10, 230, ETO_GLYPH_INDEX, NULL, Glyphs, Results.nGlyphs, NULL, 0);
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TextOutW(hdc, 10, 250, L"String without GCP_REORDER and ETO_IGNORELANGUAGE LpkGCP call (reversed, lpOutString):", 86);
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ExtTextOutW(hdc, 10, 270, ETO_IGNORELANGUAGE, NULL, OutString, Len, NULL);
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TextOutW(hdc, 10, 290, L"String with ETO_IGNORELANGUAGE ETO call (reversed, not Lpk direct call!):", 73);
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ExtTextOutW(hdc, 10, 310, ETO_IGNORELANGUAGE, NULL, szString, Len, NULL);
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TextOutW(hdc, 10, 330, L"String with ETO_RTLREADING LpkETO call (slight order change)", 60);
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LpkExtTextOut(hdc, 10, 350, ETO_RTLREADING, NULL, szString, Len, NULL, 0);
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TextOutW(hdc, 10, 370, L"String with ETO_RTLREADING ETO call (slight order change)", 57);
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ExtTextOutW(hdc, 10, 390, ETO_RTLREADING, NULL, szString, Len, NULL);
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GetCharacterPlacementW(hdc, szString, Len, 0, &Results, GCP_REORDER);
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TextOutW(hdc, 10, 410, L"Glyph positions with GCP_REORDER flag", 37);
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/* Prints per column the location of the character in the string, reordered location, its position and the character itself */
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for (i = 0, xpos = 10; i < Len; i++, xpos += 30)
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{
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StringCchPrintfW(tempString, 20, L"%d", i);
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tempLength = wcslen(tempString);
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TextOutW(hdc, xpos, 430, tempString, tempLength);
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StringCchPrintfW(tempString, 20, L"%d", lpOrder[i]);
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tempLength = wcslen(tempString);
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TextOutW(hdc, xpos, 450, tempString, tempLength);
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StringCchPrintfW(tempString, 20, L"%d", lpCaretPos[i]);
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tempLength = wcslen(tempString);
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TextOutW(hdc, xpos, 470, tempString, tempLength);
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TextOutW(hdc, xpos, 490, &szString[i], 1);
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}
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TextOutW(hdc, xpos, 430, L"Character location", 18);
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TextOutW(hdc, xpos, 450, L"lpOrder[i]", 10);
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TextOutW(hdc, xpos, 470, L"lpCaretPos[i]", 13);
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TextOutW(hdc, xpos, 490, L"String[i]", 9);
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GetCharacterPlacementW(hdc, szString, Len, 0, &Results, 0);
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TextOutW(hdc, 10, 510, L"Glyph positions without GCP_REORDER flag", 40);
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for (i = 0, xpos = 10; i < Len; i++, xpos += 30)
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{
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StringCchPrintfW(tempString, 20, L"%d", i);
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tempLength = wcslen(tempString);
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TextOutW(hdc, xpos, 530, tempString, tempLength);
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StringCchPrintfW(tempString, 20, L"%d", lpOrder[i]);
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tempLength = wcslen(tempString);
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TextOutW(hdc, xpos, 550, tempString, tempLength);
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StringCchPrintfW(tempString, 20, L"%d", lpCaretPos[i]);
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tempLength = wcslen(tempString);
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TextOutW(hdc, xpos, 570, tempString, tempLength);
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TextOutW(hdc, xpos, 590, &szString[i], 1);
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}
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TextOutW(hdc, xpos, 530, L"Character location", 18);
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TextOutW(hdc, xpos, 550, L"lpOrder[i]", 10);
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TextOutW(hdc, xpos, 570, L"lpCaretPos[i]", 13);
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TextOutW(hdc, xpos, 590, L"String[i]", 9);
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EndPaint(hWnd, &ps);
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break;
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}
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case WM_DESTROY:
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{
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PostQuitMessage(0);
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return 0;
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}
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}
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return DefWindowProc(hWnd, msg, wParam, lParam);
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}
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/* Register a class for our main window */
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BOOL RegisterMainWindowClass()
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{
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WNDCLASSEX wc;
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/* Class for our main window */
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wc.cbSize = sizeof(wc);
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wc.style = 0;
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wc.lpfnWndProc = &MainWndProc;
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wc.cbClsExtra = 0;
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wc.cbWndExtra = 0;
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wc.hInstance = g_hInstance;
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wc.hIcon = (HICON)LoadImage(g_hInstance, MAKEINTRESOURCE(IDI_APPICON), IMAGE_ICON, 0, 0, LR_DEFAULTSIZE |
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LR_DEFAULTCOLOR | LR_SHARED);
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wc.hCursor = (HCURSOR)LoadImage(NULL, IDC_ARROW, IMAGE_CURSOR, 0, 0, LR_SHARED);
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wc.hbrBackground = (HBRUSH)(COLOR_BTNFACE + 1);
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wc.lpszMenuName = MAKEINTRESOURCE(IDR_MAINMENU);
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wc.lpszClassName = MainWndClass;
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wc.hIconSm = (HICON)LoadImage(g_hInstance, MAKEINTRESOURCE(IDI_APPICON), IMAGE_ICON, 16, 16, LR_DEFAULTCOLOR);
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return (RegisterClassEx(&wc)) ? TRUE : FALSE;
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}
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/* Create an instance of our main window */
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HWND CreateMainWindow()
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{
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/* Create instance of main window */
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HWND hWnd = CreateWindowEx(0, MainWndClass, MainWndClass, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 640, 480,
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NULL, NULL, g_hInstance, NULL);
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if (hWnd)
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{
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/* Add "about" to the system menu */
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HMENU hSysMenu = GetSystemMenu(hWnd, FALSE);
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InsertMenu(hSysMenu, 5, MF_BYPOSITION | MF_SEPARATOR, 0, NULL);
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InsertMenu(hSysMenu, 6, MF_BYPOSITION, ID_HELP_ABOUT, TEXT("About"));
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}
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return hWnd;
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}
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