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401 lines
12 KiB
401 lines
12 KiB
/******************************************************************************
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Module name: Display.C
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Purpose: Display Dialog handler
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******************************************************************************/
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#include "Access.h"
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#include "winuserp.h"
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static BOOL s_fBlink = TRUE;
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static RECT s_rCursor;
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//////////////////////////////////////////////////////////////////////////////
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/*******************************************************************
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* DESCRIPTION: High Contrast dialog handler
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*******************************************************************/
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VOID FillCustonSchemeBox (HWND hwndCB) {
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HKEY hkey;
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int i;
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DWORD dwDisposition;
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// Get the class name and the value count.
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if (RegCreateKeyEx(HKEY_CURRENT_USER, CONTROL_KEY, 0, __TEXT(""),
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REG_OPTION_NON_VOLATILE, KEY_ENUMERATE_SUB_KEYS | KEY_EXECUTE | KEY_QUERY_VALUE,
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NULL, &hkey, &dwDisposition) != ERROR_SUCCESS) return;
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// Enumerate the child keys.
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for (i = 0; ; i++) {
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DWORD cbValueName;
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TCHAR szValueName[MAX_SCHEME_NAME_SIZE];
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LONG l;
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cbValueName = MAX_SCHEME_NAME_SIZE;
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l = RegEnumValue(hkey, i, szValueName, &cbValueName, NULL, NULL, NULL, NULL);
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if (ERROR_NO_MORE_ITEMS == l) break;
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// Add each value to a combobox.
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if (lstrlen(szValueName) == 0) lstrcpy(szValueName, __TEXT("<NO NAME>"));
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ComboBox_AddString(hwndCB, ((szValueName[0] == 0) ? __TEXT("<NO NAME>") : szValueName));
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}
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RegCloseKey(hkey);
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}
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// ****************************************************************************
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// Main HC Dialog handler
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// ****************************************************************************
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INT_PTR WINAPI HighContrastDlg (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
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HKEY hkey;
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HWND hwndCB = GetDlgItem(hwnd, IDC_HC_DEFAULTSCHEME);
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int i;
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DWORD dwDisposition;
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BOOL fProcessed = TRUE;
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switch (uMsg) {
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case WM_INITDIALOG:
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CheckDlgButton(hwnd, IDC_HC_HOTKEY, (g_hc.dwFlags & HCF_HOTKEYACTIVE) ? TRUE : FALSE);
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//
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// Put possible high contrast schemes in combo
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// box and show the current one
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//
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// ISSUE: If MUI is enabled then displaying the strings from the registry may
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// be incorrect. It should be in the language currently selected.
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FillCustonSchemeBox(hwndCB);
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// Set the proper selection in the combobox (handle case where it's not set yet)
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if (g_hc.lpszDefaultScheme[0] == 0)
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{
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if (!IsMUI_Enabled())
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{
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// get scheme name from resources if not MUI enabled
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LoadString(g_hinst, IDS_WHITEBLACK_SCHEME, g_hc.lpszDefaultScheme, 200);
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}
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else
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{
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// else set scheme name in english
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lstrcpy(g_hc.lpszDefaultScheme, IDSENG_WHITEBLACK_SCHEME);
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}
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}
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if (ComboBox_SelectString(hwndCB, -1, g_hc.lpszDefaultScheme) == CB_ERR) {
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// Not found, select the 1st one
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// TODO this is bad! When MUI enabled we will rarely find the correct scheme!
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ComboBox_SetCurSel(hwndCB, 0);
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}
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break;
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case WM_HELP: // F1
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WinHelp(((LPHELPINFO) lParam)->hItemHandle, __TEXT("access.hlp"), HELP_WM_HELP, (DWORD_PTR) (LPSTR) g_aIds);
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break;
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case WM_CONTEXTMENU: // right mouse click
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WinHelp((HWND) wParam, __TEXT("access.hlp"), HELP_CONTEXTMENU, (DWORD_PTR) (LPSTR) g_aIds);
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break;
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// Handle the generic commands
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case WM_COMMAND:
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switch (GET_WM_COMMAND_ID(wParam, lParam)) {
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case IDC_HC_HOTKEY:
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g_hc.dwFlags ^= HCF_HOTKEYACTIVE;
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break;
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case IDC_HC_DEFAULTSCHEME:
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if (GET_WM_COMMAND_CMD(wParam, lParam) == CBN_SELCHANGE) {
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// Get the current string into our variable
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i = ComboBox_GetCurSel(hwndCB);
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ComboBox_GetLBText(hwndCB, i, g_hc.lpszDefaultScheme);
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}
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break;
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case IDOK:
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// Save the current custom scheme to the registry.
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if (ERROR_SUCCESS == RegCreateKeyEx(
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HKEY_CURRENT_USER,
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HC_KEY,
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0,
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__TEXT(""),
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REG_OPTION_NON_VOLATILE,
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KEY_EXECUTE | KEY_QUERY_VALUE | KEY_SET_VALUE,
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NULL,
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&hkey,
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&dwDisposition)) {
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TCHAR szCust[MAX_SCHEME_NAME_SIZE];
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i = ComboBox_GetCurSel(hwndCB);
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ComboBox_GetLBText(hwndCB, i, szCust);
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// Abandon "Last Custom Scheme" (never written correctly (#954))
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RegSetValueEx(hkey
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, CURR_HC_SCHEME
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, 0, REG_SZ
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, (PBYTE) szCust
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, lstrlen(szCust)*sizeof(TCHAR));
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}
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EndDialog(hwnd, IDOK);
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break;
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case IDCANCEL:
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EndDialog(hwnd, IDCANCEL);
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break;
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}
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break;
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default:
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fProcessed = FALSE; break;
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}
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return((INT_PTR) fProcessed);
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}
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void DrawCaret(HWND hwnd, BOOL fClearFirst)
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{
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HWND hwndCursor = GetDlgItem(hwnd, IDC_KCURSOR_BLINK);
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HDC hDC = GetDC(hwnd);
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if (hDC)
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{
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HBRUSH hBrush;
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if (fClearFirst)
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{
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hBrush = GetSysColorBrush(COLOR_MENU);
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if (hBrush)
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{
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RECT rect;
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GetWindowRect(hwndCursor, &rect);
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MapWindowPoints(HWND_DESKTOP, hwnd, (LPPOINT)&rect, 2);
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FillRect(hDC, &rect, hBrush);
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InvalidateRect(hwndCursor, &rect, TRUE);
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}
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}
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hBrush = GetSysColorBrush(COLOR_BTNTEXT);
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if (hBrush)
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{
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FillRect(hDC, &s_rCursor, hBrush);
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InvalidateRect(hwndCursor, &s_rCursor, TRUE);
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}
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ReleaseDC(hwnd,hDC);
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}
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}
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void OnTimer( HWND hwnd, WPARAM wParam, LPARAM lParam )
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{
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if (wParam == BLINK)
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{
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BOOL fNoBlinkRate = (g_cs.dwNewCaretBlinkRate == CURSORMAX)?TRUE:FALSE;
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if (s_fBlink || fNoBlinkRate)
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{
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DrawCaret(hwnd, fNoBlinkRate);
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}
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else
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{
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InvalidateRect(GetDlgItem(hwnd, IDC_KCURSOR_BLINK), NULL, TRUE);
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}
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if (fNoBlinkRate)
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KillTimer(hwnd, wParam);
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s_fBlink = !s_fBlink;
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}
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}
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void OnHScroll( HWND hwnd, WPARAM wParam, LPARAM lParam )
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{
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if ((HWND)lParam == GetDlgItem(hwnd, IDC_KCURSOR_RATE))
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{
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// blink rate setting
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int nCurrent = (int)SendMessage( (HWND)lParam, TBM_GETPOS, 0, 0L );
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g_cs.dwNewCaretBlinkRate = CURSORSUM - (nCurrent * 100);
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// reset the bink rate timer
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SetTimer(hwnd, BLINK, g_cs.dwNewCaretBlinkRate, NULL);
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if (g_cs.dwNewCaretBlinkRate == CURSORMAX) // draw the caret immediately; if we wait
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DrawCaret(hwnd, TRUE); // for the timer there is a visible delay
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SendMessage(GetParent(hwnd), PSM_CHANGED, (WPARAM)hwnd, 0);
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}
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else if ((HWND)lParam == GetDlgItem(hwnd, IDC_KCURSOR_WIDTH))
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{
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// cursor width setting
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g_cs.dwNewCaretWidth = (int)SendMessage( (HWND)lParam, TBM_GETPOS, 0, 0L );
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s_rCursor.right = s_rCursor.left + g_cs.dwNewCaretWidth;
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DrawCaret(hwnd, (g_cs.dwNewCaretBlinkRate == CURSORMAX));
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SendMessage(GetParent(hwnd), PSM_CHANGED, (WPARAM)hwnd, 0);
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}
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}
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void InitCursorCtls(HWND hwnd)
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{
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g_cs.dwNewCaretWidth = g_cs.dwCaretWidth;
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g_cs.dwNewCaretBlinkRate = g_cs.dwCaretBlinkRate;
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// Update the Caret UI
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SendMessage(GetDlgItem(hwnd, IDC_KCURSOR_WIDTH), TBM_SETRANGE, 0, MAKELONG(1, 20));
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SendMessage(GetDlgItem(hwnd, IDC_KCURSOR_WIDTH), TBM_SETPOS, TRUE, (LONG)g_cs.dwCaretWidth);
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SendMessage(GetDlgItem(hwnd, IDC_KCURSOR_RATE), TBM_SETRANGE, 0, MAKELONG(CURSORMIN / 100, CURSORMAX / 100));
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SendMessage(GetDlgItem(hwnd, IDC_KCURSOR_RATE), TBM_SETPOS, TRUE, (LONG)(CURSORSUM - g_cs.dwCaretBlinkRate) / 100);
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// Update Blink and caret size
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GetWindowRect(GetDlgItem(hwnd, IDC_KCURSOR_BLINK), &s_rCursor);
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MapWindowPoints(HWND_DESKTOP, hwnd, (LPPOINT)&s_rCursor, 2);
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s_rCursor.right = s_rCursor.left + g_cs.dwCaretWidth;
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}
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// *******************************************************************
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// DisplayDialog handler
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// *******************************************************************
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INT_PTR WINAPI DisplayDlg (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
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HIGHCONTRAST hc;
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TCHAR szScheme[MAX_SCHEME_NAME_SIZE];
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BOOL fProcessed = TRUE;
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switch (uMsg) {
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case WM_INITDIALOG:
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CheckDlgButton(hwnd, IDC_HC_ENABLE,
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(g_hc.dwFlags & HCF_HIGHCONTRASTON) ? TRUE : FALSE);
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if (!(g_hc.dwFlags & HCF_AVAILABLE)) {
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EnableWindow(GetDlgItem(hwnd, IDC_HC_SETTINGS), FALSE);
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EnableWindow(GetDlgItem(hwnd,IDC_HC_ENABLE), FALSE);
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}
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InitCursorCtls(hwnd);
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break;
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case WM_TIMER:
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OnTimer(hwnd, wParam, lParam);
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break;
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case WM_HSCROLL:
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OnHScroll(hwnd, wParam, lParam);
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break;
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case WM_HELP:
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WinHelp(((LPHELPINFO) lParam)->hItemHandle, __TEXT("access.hlp"), HELP_WM_HELP, (DWORD_PTR) (LPSTR) g_aIds);
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break;
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case WM_CONTEXTMENU:
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WinHelp((HWND) wParam, __TEXT("access.hlp"), HELP_CONTEXTMENU, (DWORD_PTR) (LPSTR) g_aIds);
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break;
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// sliders don't get this message so pass it on
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case WM_SYSCOLORCHANGE:
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SendMessage(GetDlgItem(hwnd, IDC_KCURSOR_WIDTH), WM_SYSCOLORCHANGE, 0, 0);
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SendMessage(GetDlgItem(hwnd, IDC_KCURSOR_RATE), WM_SYSCOLORCHANGE, 0, 0);
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break;
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case WM_COMMAND:
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switch (GET_WM_COMMAND_ID(wParam, lParam)) {
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case IDC_HC_ENABLE:
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g_hc.dwFlags ^= HCF_HIGHCONTRASTON;
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SendMessage(GetParent(hwnd), PSM_CHANGED, (WPARAM) hwnd, 0);
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break;
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case IDC_HC_SETTINGS:
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{
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INT_PTR RetValue;
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hc = g_hc;
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lstrcpy(szScheme, g_hc.lpszDefaultScheme);
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RetValue = DialogBox(g_hinst, MAKEINTRESOURCE(IDD_HIGHCONSETTINGS), hwnd, HighContrastDlg);
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if ( RetValue == IDCANCEL)
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{
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g_hc = hc;
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lstrcpy(g_hc.lpszDefaultScheme, szScheme);
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}
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else
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{
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SendMessage(GetParent(hwnd), PSM_CHANGED, (WPARAM) hwnd, 0);
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}
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}
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break;
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}
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break;
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case WM_NOTIFY:
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switch (((NMHDR *)lParam)->code) {
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case PSN_APPLY: SetAccessibilitySettings(); break;
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case PSN_KILLACTIVE:
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KillTimer(hwnd, BLINK);
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g_cs.dwCaretBlinkRate = g_cs.dwNewCaretBlinkRate;
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g_cs.dwCaretWidth = g_cs.dwNewCaretWidth;
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break;
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case PSN_SETACTIVE:
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SetTimer(hwnd
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, BLINK
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, (g_cs.dwNewCaretBlinkRate < CURSORMAX)?g_cs.dwNewCaretBlinkRate:0
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, NULL);
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break;
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}
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break;
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default:
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fProcessed = FALSE;
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break;
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}
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return(fProcessed);
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}
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BOOL IsMUI_Enabled()
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{
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OSVERSIONINFO verinfo;
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LANGID rcLang;
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HMODULE hModule;
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pfnGetUserDefaultUILanguage gpfnGetUserDefaultUILanguage;
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pfnGetSystemDefaultUILanguage gpfnGetSystemDefaultUILanguage;
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static g_bPFNLoaded=FALSE;
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static g_bMUIStatus=FALSE;
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if(g_bPFNLoaded)
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return g_bMUIStatus;
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g_bPFNLoaded = TRUE;
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verinfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
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GetVersionEx( &verinfo) ;
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if (verinfo.dwMajorVersion == 5)
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{
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hModule = GetModuleHandle(TEXT("kernel32.dll"));
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if (hModule)
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{
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gpfnGetSystemDefaultUILanguage =
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(pfnGetSystemDefaultUILanguage)GetProcAddress(hModule,"GetSystemDefaultUILanguage");
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if (gpfnGetSystemDefaultUILanguage)
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{
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rcLang = (LANGID) gpfnGetSystemDefaultUILanguage();
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if (rcLang == 0x409 )
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{
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gpfnGetUserDefaultUILanguage =
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(pfnGetUserDefaultUILanguage)GetProcAddress(hModule,"GetUserDefaultUILanguage");
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if (gpfnGetUserDefaultUILanguage)
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{
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if (rcLang != (LANGID)gpfnGetUserDefaultUILanguage() )
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{
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g_bMUIStatus = TRUE;
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}
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}
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}
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}
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}
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}
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return g_bMUIStatus;
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}
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///////////////////////////////// End of File /////////////////////////////////
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