mirror of
https://github.com/reactos/reactos.git
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268 lines
9.2 KiB
C
268 lines
9.2 KiB
C
/*
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* PROJECT: ReactOS Accessibility Control Panel
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* LICENSE: GPL - See COPYING in the top level directory
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* FILE: dll/cpl/access/display.c
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* PURPOSE: Display-related accessibility settings
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* COPYRIGHT: Copyright 2004 Johannes Anderwald (johannes.anderwald@reactos.org)
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* Copyright 2007 Eric Kohl
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*/
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#include "access.h"
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#include <wingdi.h>
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#define ID_BLINK_TIMER 346
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static VOID
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FillColorSchemeComboBox(HWND hwnd)
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{
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TCHAR szValue[128];
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DWORD dwDisposition;
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DWORD dwLength;
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HKEY hKey;
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LONG lError;
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INT i;
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lError = RegCreateKeyEx(HKEY_CURRENT_USER,
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_T("Control Panel\\Appearance\\Schemes"),
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0,
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NULL,
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REG_OPTION_NON_VOLATILE,
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KEY_ENUMERATE_SUB_KEYS | KEY_EXECUTE | KEY_QUERY_VALUE,
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NULL,
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&hKey,
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&dwDisposition);
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if (lError != ERROR_SUCCESS)
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return;
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for (i = 0; ; i++)
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{
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dwLength = 128;
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lError = RegEnumValue(hKey,
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i,
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szValue,
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&dwLength, NULL, NULL, NULL, NULL);
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if (lError == ERROR_NO_MORE_ITEMS)
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break;
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SendMessage(hwnd,
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CB_ADDSTRING,
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0,
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(LPARAM)szValue);
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}
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RegCloseKey(hKey);
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}
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INT_PTR CALLBACK
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HighContrastDlgProc(HWND hwndDlg,
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UINT uMsg,
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WPARAM wParam,
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LPARAM lParam)
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{
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PGLOBAL_DATA pGlobalData;
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pGlobalData = (PGLOBAL_DATA)GetWindowLongPtr(hwndDlg, DWLP_USER);
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switch (uMsg)
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{
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case WM_INITDIALOG:
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pGlobalData = (PGLOBAL_DATA)lParam;
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SetWindowLongPtr(hwndDlg, DWLP_USER, (LONG_PTR)pGlobalData);
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CheckDlgButton(hwndDlg,
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IDC_CONTRAST_ACTIVATE_CHECK,
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pGlobalData->highContrast.dwFlags & HCF_HOTKEYACTIVE ? BST_CHECKED : BST_UNCHECKED);
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FillColorSchemeComboBox(GetDlgItem(hwndDlg, IDC_CONTRAST_COMBO));
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SendDlgItemMessage(hwndDlg,
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IDC_CONTRAST_COMBO,
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CB_SELECTSTRING,
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(WPARAM)-1,
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(LPARAM)pGlobalData->highContrast.lpszDefaultScheme);
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break;
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case WM_COMMAND:
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switch (LOWORD(wParam))
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{
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case IDC_CONTRAST_ACTIVATE_CHECK:
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pGlobalData->highContrast.dwFlags ^= HCF_HOTKEYACTIVE;
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break;
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case IDC_CONTRAST_COMBO:
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if (HIWORD(wParam) == CBN_SELCHANGE)
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{
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INT nSel;
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nSel = SendDlgItemMessage(hwndDlg, IDC_CONTRAST_COMBO,
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CB_GETCURSEL, 0, 0);
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SendDlgItemMessage(hwndDlg, IDC_CONTRAST_COMBO,
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CB_GETLBTEXT, nSel,
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(LPARAM)pGlobalData->highContrast.lpszDefaultScheme);
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}
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break;
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case IDOK:
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EndDialog(hwndDlg, TRUE);
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break;
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case IDCANCEL:
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EndDialog(hwndDlg, FALSE);
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break;
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default:
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break;
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}
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break;
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}
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return FALSE;
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}
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/* Property page dialog callback */
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INT_PTR CALLBACK
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DisplayPageProc(HWND hwndDlg,
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UINT uMsg,
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WPARAM wParam,
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LPARAM lParam)
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{
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PGLOBAL_DATA pGlobalData;
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LPPSHNOTIFY lppsn;
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INT i;
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pGlobalData = (PGLOBAL_DATA)GetWindowLongPtr(hwndDlg, DWLP_USER);
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switch (uMsg)
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{
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case WM_INITDIALOG:
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pGlobalData = (PGLOBAL_DATA)((LPPROPSHEETPAGE)lParam)->lParam;
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if (pGlobalData == NULL)
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return FALSE;
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SetWindowLongPtr(hwndDlg, DWLP_USER, (LONG_PTR)pGlobalData);
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pGlobalData->fShowCaret = TRUE;
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GetWindowRect(GetDlgItem(hwndDlg, IDC_CURSOR_WIDTH_TEXT), &pGlobalData->rcCaret);
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ScreenToClient(hwndDlg, (LPPOINT)&pGlobalData->rcCaret.left);
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ScreenToClient(hwndDlg, (LPPOINT)&pGlobalData->rcCaret.right);
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CopyRect(&pGlobalData->rcOldCaret, &pGlobalData->rcCaret);
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pGlobalData->rcCaret.right = pGlobalData->rcCaret.left + pGlobalData->uCaretWidth;
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/* Set the checkbox */
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CheckDlgButton(hwndDlg,
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IDC_CONTRAST_BOX,
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pGlobalData->highContrast.dwFlags & HCF_HIGHCONTRASTON ? BST_CHECKED : BST_UNCHECKED);
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SendDlgItemMessage(hwndDlg, IDC_CURSOR_BLINK_TRACK, TBM_SETRANGE, (WPARAM)TRUE, (LPARAM)MAKELONG(0, 10));
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SendDlgItemMessage(hwndDlg, IDC_CURSOR_BLINK_TRACK, TBM_SETPOS, (WPARAM)TRUE, (LPARAM)(12 - (pGlobalData->uCaretBlinkTime / 100)));
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SendDlgItemMessage(hwndDlg, IDC_CURSOR_WIDTH_TRACK, TBM_SETRANGE, (WPARAM)TRUE, (LPARAM)MAKELONG(0, 19));
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SendDlgItemMessage(hwndDlg, IDC_CURSOR_WIDTH_TRACK, TBM_SETPOS, (WPARAM)TRUE, (LPARAM)(pGlobalData->uCaretWidth - 1));
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/* Start the blink timer */
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SetTimer(hwndDlg, ID_BLINK_TIMER, pGlobalData->uCaretBlinkTime, NULL);
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return TRUE;
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case WM_COMMAND:
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switch (LOWORD(wParam))
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{
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case IDC_CONTRAST_BOX:
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pGlobalData->highContrast.dwFlags ^= HCF_HIGHCONTRASTON;
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PropSheet_Changed(GetParent(hwndDlg), hwndDlg);
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break;
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case IDC_CONTRAST_BUTTON:
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if (DialogBoxParam(hApplet,
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MAKEINTRESOURCE(IDD_CONTRASTOPTIONS),
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hwndDlg,
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HighContrastDlgProc,
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(LPARAM)pGlobalData))
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PropSheet_Changed(GetParent(hwndDlg), hwndDlg);
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break;
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default:
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break;
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}
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break;
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case WM_HSCROLL:
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switch (GetWindowLongPtr((HWND) lParam, GWL_ID))
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{
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case IDC_CURSOR_BLINK_TRACK:
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i = SendDlgItemMessage(hwndDlg, IDC_CURSOR_BLINK_TRACK, TBM_GETPOS, 0, 0);
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pGlobalData->uCaretBlinkTime = (12 - (UINT)i) * 100;
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KillTimer(hwndDlg, ID_BLINK_TIMER);
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SetTimer(hwndDlg, ID_BLINK_TIMER, pGlobalData->uCaretBlinkTime, NULL);
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PropSheet_Changed(GetParent(hwndDlg), hwndDlg);
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break;
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case IDC_CURSOR_WIDTH_TRACK:
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i = SendDlgItemMessage(hwndDlg, IDC_CURSOR_WIDTH_TRACK, TBM_GETPOS, 0, 0);
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pGlobalData->uCaretWidth = (UINT)i + 1;
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pGlobalData->rcCaret.right = pGlobalData->rcCaret.left + pGlobalData->uCaretWidth;
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if (pGlobalData->fShowCaret)
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{
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HDC hDC = GetDC(hwndDlg);
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HBRUSH hBrush = GetSysColorBrush(COLOR_BTNTEXT);
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FillRect(hDC, &pGlobalData->rcCaret, hBrush);
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DeleteObject(hBrush);
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ReleaseDC(hwndDlg, hDC);
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}
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else
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{
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InvalidateRect(hwndDlg, &pGlobalData->rcOldCaret, TRUE);
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}
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PropSheet_Changed(GetParent(hwndDlg), hwndDlg);
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break;
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}
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break;
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case WM_TIMER:
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if (wParam == ID_BLINK_TIMER)
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{
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if (pGlobalData->fShowCaret)
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{
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HDC hDC = GetDC(hwndDlg);
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HBRUSH hBrush = GetSysColorBrush(COLOR_BTNTEXT);
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FillRect(hDC, &pGlobalData->rcCaret, hBrush);
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DeleteObject(hBrush);
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ReleaseDC(hwndDlg, hDC);
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}
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else
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{
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InvalidateRect(hwndDlg, &pGlobalData->rcOldCaret, TRUE);
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}
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pGlobalData->fShowCaret = !pGlobalData->fShowCaret;
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}
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break;
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case WM_NOTIFY:
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lppsn = (LPPSHNOTIFY)lParam;
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if (lppsn->hdr.code == PSN_APPLY)
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{
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SetCaretBlinkTime(pGlobalData->uCaretBlinkTime);
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SystemParametersInfo(SPI_SETCARETWIDTH,
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0,
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IntToPtr(pGlobalData->uCaretWidth),
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SPIF_UPDATEINIFILE | SPIF_SENDCHANGE /*0*/);
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SystemParametersInfo(SPI_SETHIGHCONTRAST,
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sizeof(HIGHCONTRAST),
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&pGlobalData->highContrast,
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SPIF_UPDATEINIFILE | SPIF_SENDCHANGE /*0*/);
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return TRUE;
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}
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break;
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case WM_DESTROY:
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KillTimer(hwndDlg, ID_BLINK_TIMER);
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break;
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}
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return FALSE;
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}
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