dlls/comctl32/hotkey.c - wine - Git at Google

 /*
  * Hotkey control
  *
  * Copyright 1998, 1999 Eric Kohl
  * Copyright 2002 Gyorgy 'Nog' Jeney
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
  * License along with this library; if not, write to the Free Software
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  *
  * TODO:
  *   - What are we meant to do with the WM_CHAR message?
  */

 #include <string.h>
 #include "winbase.h"
 #include "commctrl.h"
 #include "comctl32.h"
 #include "wine/debug.h"

 WINE_DEFAULT_DEBUG_CHANNEL(hotkey);

 typedef struct tagHOTKEY_INFO
 {
     HWND  hwndSelf;
     HFONT hFont;
     BOOL  bFocus;
     INT   nHeight;
     WORD  HotKey;
     WORD  InvComb;
     WORD  InvMod;
     BYTE  CurrMod;
     INT   CaretPos;
     DWORD ScanCode;
     WCHAR strNone[15]; /* hope its long enough ... */
 } HOTKEY_INFO;

 #define HOTKEY_GetInfoPtr(hwnd) ((HOTKEY_INFO *)GetWindowLongA (hwnd, 0))

 static const WCHAR HOTKEY_plussep[] = { ' ', '+', ' ' };

 #define IsOnlySet(flags) (infoPtr->CurrMod == (flags))

 static BOOL
 HOTKEY_IsCombInv(HOTKEY_INFO *infoPtr)
 {
     TRACE("(infoPtr=%p)\n", infoPtr);
     if((infoPtr->InvComb & HKCOMB_NONE) && !infoPtr->CurrMod)
 	return TRUE;
     if((infoPtr->InvComb & HKCOMB_S) && IsOnlySet(HOTKEYF_SHIFT))
 	return TRUE;
     if((infoPtr->InvComb & HKCOMB_C) && IsOnlySet(HOTKEYF_CONTROL))
 	return TRUE;
     if((infoPtr->InvComb & HKCOMB_A) && IsOnlySet(HOTKEYF_ALT))
 	return TRUE;
     if((infoPtr->InvComb & HKCOMB_SC) &&
        IsOnlySet(HOTKEYF_SHIFT | HOTKEYF_CONTROL))
 	return TRUE;
     if((infoPtr->InvComb & HKCOMB_SA) && IsOnlySet(HOTKEYF_SHIFT | HOTKEYF_ALT))
 	return TRUE;
     if((infoPtr->InvComb & HKCOMB_CA) &&
        IsOnlySet(HOTKEYF_CONTROL | HOTKEYF_ALT))
 	return TRUE;
     if((infoPtr->InvComb & HKCOMB_SCA) &&
        IsOnlySet(HOTKEYF_SHIFT | HOTKEYF_CONTROL | HOTKEYF_ALT))
 	return TRUE;

     TRACE("() Modifiers are valid\n");
     return FALSE;
 }
 #undef IsOnlySet

 static void
 HOTKEY_DrawHotKey(HOTKEY_INFO *infoPtr, LPCWSTR KeyName, WORD NameLen,
                   LPRECT rc, HDC hdc)
 {
     SIZE TextSize;
     DWORD dwExStyle = GetWindowLongW (infoPtr->hwndSelf, GWL_EXSTYLE);

     /* We have to allow some space for the frame to be drawn */
     rc->left += 2;
     rc->top++;
     DrawTextW(hdc, KeyName, NameLen, rc, DT_LEFT | DT_VCENTER);
     rc->left -= 2;
     rc->top--;
     if(dwExStyle & WS_EX_CLIENTEDGE)
 	DrawEdge(hdc, rc, EDGE_SUNKEN, BF_RECT | BF_ADJUST);

     /* Get the text size and position the caret accordingly */
     GetTextExtentPoint32W (hdc, KeyName, NameLen, &TextSize);
     infoPtr->CaretPos = TextSize.cx + 2;
     SetCaretPos(infoPtr->CaretPos, 3);
 }

 /* Draw the names of the keys in the control */
 static void
 HOTKEY_Refresh(HOTKEY_INFO *infoPtr, HDC hdc)
 {
     WCHAR KeyName[sizeof(WCHAR) * 64];
     WORD NameLen = 0;
     BYTE Modifier;
     RECT rc;

     GetClientRect(infoPtr->hwndSelf, &rc);

     TRACE("(infoPtr=%p hdc=%p)\n", infoPtr, hdc);

     if(!infoPtr->CurrMod && !infoPtr->HotKey) {
 	HOTKEY_DrawHotKey (infoPtr, infoPtr->strNone, 4, &rc, hdc);
 	return;
     }

     if(infoPtr->HotKey)
 	Modifier = HIBYTE(infoPtr->HotKey);
     else if(HOTKEY_IsCombInv(infoPtr))
 	Modifier = infoPtr->InvMod;
     else
 	Modifier = infoPtr->CurrMod;

     if(Modifier & HOTKEYF_CONTROL) {
 	GetKeyNameTextW(MAKELPARAM(0, MapVirtualKeyW(VK_CONTROL, 0)),
 	                          KeyName, 64);
         NameLen = lstrlenW(KeyName);
 	memcpy(&KeyName[NameLen], HOTKEY_plussep, sizeof(HOTKEY_plussep));
 	NameLen += 3;
     }
     if(Modifier & HOTKEYF_SHIFT) {
 	GetKeyNameTextW(MAKELPARAM(0, MapVirtualKeyW(VK_SHIFT, 0)),
 	                           &KeyName[NameLen], 64 - NameLen);
 	NameLen = lstrlenW(KeyName);
 	memcpy(&KeyName[NameLen], HOTKEY_plussep, sizeof(HOTKEY_plussep));
 	NameLen += 3;
     }
     if(Modifier & HOTKEYF_ALT) {
 	GetKeyNameTextW(MAKELPARAM(0, MapVirtualKeyW(VK_MENU, 0)),
 	                           &KeyName[NameLen], 64 - NameLen);
 	NameLen = lstrlenW(KeyName);
 	memcpy(&KeyName[NameLen], HOTKEY_plussep, sizeof(HOTKEY_plussep));
 	NameLen += 3;
     }

     if(infoPtr->HotKey) {
 	GetKeyNameTextW(infoPtr->ScanCode, &KeyName[NameLen], 64 - NameLen);
 	NameLen = lstrlenW(KeyName);
     }
     else
 	KeyName[NameLen] = 0;

     HOTKEY_DrawHotKey (infoPtr, KeyName, NameLen, &rc, hdc);
 }

 static void
 HOTKEY_Paint(HOTKEY_INFO *infoPtr, HDC hdc)
 {
     if (hdc)
 	HOTKEY_Refresh(infoPtr, hdc);
     else {
 	PAINTSTRUCT ps;
 	hdc = BeginPaint (infoPtr->hwndSelf, &ps);
 	HOTKEY_Refresh (infoPtr, hdc);
 	EndPaint (infoPtr->hwndSelf, &ps);
     }
 }

 static LRESULT
 HOTKEY_GetHotKey(HOTKEY_INFO *infoPtr)
 {
     TRACE("(infoPtr=%p) Modifiers: 0x%x, Virtual Key: %d\n", infoPtr,
           HIBYTE(infoPtr->HotKey), LOBYTE(infoPtr->HotKey));
     return (LRESULT)infoPtr->HotKey;
 }

 static void
 HOTKEY_SetHotKey(HOTKEY_INFO *infoPtr, WPARAM wParam)
 {
     infoPtr->HotKey = (WORD)wParam;
     infoPtr->ScanCode =
         MAKELPARAM(0, MapVirtualKeyW(LOBYTE(infoPtr->HotKey), 0));
     TRACE("(infoPtr=%p wParam=%x) Modifiers: 0x%x, Virtual Key: %d\n", infoPtr,
           wParam, HIBYTE(infoPtr->HotKey), LOBYTE(infoPtr->HotKey));
     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 }

 static void
 HOTKEY_SetRules(HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 {
     infoPtr->InvComb = (WORD)wParam;
     infoPtr->InvMod = (WORD)lParam;
     TRACE("(infoPtr=%p) Invalid Modifers: 0x%x, If Invalid: 0x%x\n", infoPtr,
           infoPtr->InvComb, infoPtr->InvMod);
 }

 /* << HOTKEY_Char >> */

 static LRESULT
 HOTKEY_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
 {
     HOTKEY_INFO *infoPtr;
     TEXTMETRICW tm;
     HDC hdc;

     /* allocate memory for info structure */
     infoPtr = (HOTKEY_INFO *)COMCTL32_Alloc (sizeof(HOTKEY_INFO));
     SetWindowLongW (hwnd, 0, (DWORD)infoPtr);

     /* initialize info structure */
     infoPtr->HotKey = infoPtr->InvComb = infoPtr->InvMod = infoPtr->CurrMod = 0;
     infoPtr->CaretPos = 2;
     infoPtr->hwndSelf = hwnd;
     LoadStringW(COMCTL32_hModule, HKY_NONE, infoPtr->strNone, 15);

     /* get default font height */
     hdc = GetDC (hwnd);
     GetTextMetricsW (hdc, &tm);
     infoPtr->nHeight = tm.tmHeight;
     ReleaseDC (hwnd, hdc);

     return 0;
 }


 static LRESULT
 HOTKEY_Destroy (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 {
     HWND hwnd = infoPtr->hwndSelf;
     /* free hotkey info data */
     COMCTL32_Free (infoPtr);
     SetWindowLongW (hwnd, 0, 0);
     return 0;
 }


 static LRESULT
 HOTKEY_EraseBackground (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 {
     HBRUSH hBrush;
     RECT   rc;

     hBrush =
 	(HBRUSH)SendMessageW (GetParent (infoPtr->hwndSelf), WM_CTLCOLOREDIT,
 				wParam, (LPARAM)infoPtr->hwndSelf);
     if (hBrush)
 	hBrush = (HBRUSH)GetStockObject (WHITE_BRUSH);
     GetClientRect (infoPtr->hwndSelf, &rc);

     FillRect ((HDC)wParam, &rc, hBrush);

     return -1;
 }


 inline static LRESULT
 HOTKEY_GetFont (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 {
     return (LRESULT)infoPtr->hFont;
 }

 static LRESULT
 HOTKEY_KeyDown (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 {
     TRACE("() Key: %d\n", wParam);
     /* If any key is Pressed, we have to reset the hotkey in the control */
     infoPtr->HotKey = 0;

     switch (wParam) {
 	case VK_RETURN:
 	case VK_TAB:
 	case VK_SPACE:
 	case VK_DELETE:
 	case VK_ESCAPE:
 	case VK_BACK:
 	    InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
 	    return DefWindowProcW (infoPtr->hwndSelf, WM_KEYDOWN, wParam,
 	                           lParam);

 	case VK_SHIFT:
 	    infoPtr->CurrMod |= HOTKEYF_SHIFT;
 	    break;
 	case VK_CONTROL:
 	    infoPtr->CurrMod |= HOTKEYF_CONTROL;
 	    break;
 	case VK_MENU:
 	    infoPtr->CurrMod |= HOTKEYF_ALT;
 	    break;

 	default:
 	    if(HOTKEY_IsCombInv(infoPtr))
 	        infoPtr->HotKey = MAKEWORD(wParam, infoPtr->InvMod);
 	    else
 	        infoPtr->HotKey = MAKEWORD(wParam, infoPtr->CurrMod);
 	    infoPtr->ScanCode = lParam;
 	    break;
     }

     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
     return 0;
 }


 static LRESULT
 HOTKEY_KeyUp (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 {
     TRACE("() Key: %d\n", wParam);
     switch (wParam) {
 	case VK_SHIFT:
 	    infoPtr->CurrMod &= ~HOTKEYF_SHIFT;
 	    break;
 	case VK_CONTROL:
 	    infoPtr->CurrMod &= ~HOTKEYF_CONTROL;
 	    break;
 	case VK_MENU:
 	    infoPtr->CurrMod &= ~HOTKEYF_ALT;
 	    break;
 	default:
 	    return 1;
     }

     InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);

     return 0;
 }


 static LRESULT
 HOTKEY_KillFocus (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 {
     infoPtr->bFocus = FALSE;
     DestroyCaret ();

     return 0;
 }


 static LRESULT
 HOTKEY_LButtonDown (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 {
     SetFocus (infoPtr->hwndSelf);

     return 0;
 }


 inline static LRESULT
 HOTKEY_NCCreate (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 {
     DWORD dwExStyle = GetWindowLongW (infoPtr->hwndSelf, GWL_EXSTYLE);
     SetWindowLongW (infoPtr->hwndSelf, GWL_EXSTYLE,
                     dwExStyle | WS_EX_CLIENTEDGE);
     return DefWindowProcW (infoPtr->hwndSelf, WM_NCCREATE, wParam, lParam);
 }

 static LRESULT
 HOTKEY_SetFocus (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 {
     infoPtr->bFocus = TRUE;


     CreateCaret (infoPtr->hwndSelf, (HBITMAP)0, 1, infoPtr->nHeight - 2);

     SetCaretPos (infoPtr->CaretPos, 3);

     ShowCaret (infoPtr->hwndSelf);


     return 0;
 }


 inline static LRESULT
 HOTKEY_SetFont (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
 {
     TEXTMETRICW tm;
     HDC hdc;
     HFONT hOldFont = 0;

     infoPtr->hFont = (HFONT)wParam;

     hdc = GetDC (infoPtr->hwndSelf);
     if (infoPtr->hFont)
 	hOldFont = SelectObject (hdc, infoPtr->hFont);

     GetTextMetricsW (hdc, &tm);
     infoPtr->nHeight = tm.tmHeight;

     if (infoPtr->hFont)
 	SelectObject (hdc, hOldFont);
     ReleaseDC (infoPtr->hwndSelf, hdc);

     if (LOWORD(lParam))
 	InvalidateRect (infoPtr->hwndSelf, NULL, TRUE);

     return 0;
 }

 static LRESULT WINAPI
 HOTKEY_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
 {
     HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd);
     TRACE("hwnd=%p msg=%x wparam=%x lparam=%lx\n", hwnd, uMsg, wParam, lParam);
     if (!infoPtr && (uMsg != WM_CREATE))
         return DefWindowProcW (hwnd, uMsg, wParam, lParam);
     switch (uMsg)
     {
 	case HKM_GETHOTKEY:
 	    return HOTKEY_GetHotKey (infoPtr);
 	case HKM_SETHOTKEY:
 	    HOTKEY_SetHotKey (infoPtr, wParam);
 	    break;
 	case HKM_SETRULES:
             HOTKEY_SetRules (infoPtr, wParam, lParam);
 	    break;

 /*	case WM_CHAR: */

 	case WM_CREATE:
 	    return HOTKEY_Create (hwnd, wParam, lParam);

 	case WM_DESTROY:
 	    return HOTKEY_Destroy (infoPtr, wParam, lParam);

 	case WM_ERASEBKGND:
 	    return HOTKEY_EraseBackground (infoPtr, wParam, lParam);

 	case WM_GETDLGCODE:
 	    return DLGC_WANTCHARS | DLGC_WANTARROWS;

 	case WM_GETFONT:
 	    return HOTKEY_GetFont (infoPtr, wParam, lParam);

 	case WM_KEYDOWN:
 	case WM_SYSKEYDOWN:
 	    return HOTKEY_KeyDown (infoPtr, wParam, lParam);

 	case WM_KEYUP:
 	case WM_SYSKEYUP:
 	    return HOTKEY_KeyUp (infoPtr, wParam, lParam);

 	case WM_KILLFOCUS:
 	    return HOTKEY_KillFocus (infoPtr, wParam, lParam);

 	case WM_LBUTTONDOWN:
 	    return HOTKEY_LButtonDown (infoPtr, wParam, lParam);

 	case WM_NCCREATE:
 	    return HOTKEY_NCCreate (infoPtr, wParam, lParam);

 	case WM_PAINT:
 	    HOTKEY_Paint(infoPtr, (HDC)wParam);
 	    return 0;

 	case WM_SETFOCUS:
 	    return HOTKEY_SetFocus (infoPtr, wParam, lParam);

 	case WM_SETFONT:
 	    return HOTKEY_SetFont (infoPtr, wParam, lParam);

 /*	case WM_SYSCHAR: */

 	default:
 	    if ((uMsg >= WM_USER) && (uMsg < WM_APP))
 		ERR("unknown msg %04x wp=%08x lp=%08lx\n",
 		     uMsg, wParam, lParam);
 	    return DefWindowProcW (hwnd, uMsg, wParam, lParam);
     }
     return 0;
 }


 void
 HOTKEY_Register (void)
 {
     WNDCLASSW wndClass;

     ZeroMemory (&wndClass, sizeof(WNDCLASSW));
     wndClass.style         = CS_GLOBALCLASS;
     wndClass.lpfnWndProc   = (WNDPROC)HOTKEY_WindowProc;
     wndClass.cbClsExtra    = 0;
     wndClass.cbWndExtra    = sizeof(HOTKEY_INFO *);
     wndClass.hCursor       = 0;
     wndClass.hbrBackground = 0;
     wndClass.lpszClassName = HOTKEY_CLASSW;

     RegisterClassW (&wndClass);
 }


 void
 HOTKEY_Unregister (void)
 {
     UnregisterClassW (HOTKEY_CLASSW, (HINSTANCE)NULL);
 }
	/*
	* Hotkey control
	*
	* Copyright 1998, 1999 Eric Kohl
	* Copyright 2002 Gyorgy 'Nog' Jeney
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Lesser General Public
	* License as published by the Free Software Foundation; either
	* version 2.1 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Lesser General Public License for more details.
	*
	* You should have received a copy of the GNU Lesser General Public
	* License along with this library; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*
	* TODO:
	* - What are we meant to do with the WM_CHAR message?
	*/

	#include <string.h>
	#include "winbase.h"
	#include "commctrl.h"
	#include "comctl32.h"
	#include "wine/debug.h"

	WINE_DEFAULT_DEBUG_CHANNEL(hotkey);

	typedef struct tagHOTKEY_INFO
	{
	HWND hwndSelf;
	HFONT hFont;
	BOOL bFocus;
	INT nHeight;
	WORD HotKey;
	WORD InvComb;
	WORD InvMod;
	BYTE CurrMod;
	INT CaretPos;
	DWORD ScanCode;
	WCHAR strNone[15]; /* hope its long enough ... */
	} HOTKEY_INFO;

	#define HOTKEY_GetInfoPtr(hwnd) ((HOTKEY_INFO *)GetWindowLongA (hwnd, 0))

	static const WCHAR HOTKEY_plussep[] = { ' ', '+', ' ' };

	#define IsOnlySet(flags) (infoPtr->CurrMod == (flags))

	static BOOL
	HOTKEY_IsCombInv(HOTKEY_INFO *infoPtr)
	{
	TRACE("(infoPtr=%p)\n", infoPtr);
	if((infoPtr->InvComb & HKCOMB_NONE) && !infoPtr->CurrMod)
	return TRUE;
	if((infoPtr->InvComb & HKCOMB_S) && IsOnlySet(HOTKEYF_SHIFT))
	return TRUE;
	if((infoPtr->InvComb & HKCOMB_C) && IsOnlySet(HOTKEYF_CONTROL))
	return TRUE;
	if((infoPtr->InvComb & HKCOMB_A) && IsOnlySet(HOTKEYF_ALT))
	return TRUE;
	if((infoPtr->InvComb & HKCOMB_SC) &&
	IsOnlySet(HOTKEYF_SHIFT \| HOTKEYF_CONTROL))
	return TRUE;
	if((infoPtr->InvComb & HKCOMB_SA) && IsOnlySet(HOTKEYF_SHIFT \| HOTKEYF_ALT))
	return TRUE;
	if((infoPtr->InvComb & HKCOMB_CA) &&
	IsOnlySet(HOTKEYF_CONTROL \| HOTKEYF_ALT))
	return TRUE;
	if((infoPtr->InvComb & HKCOMB_SCA) &&
	IsOnlySet(HOTKEYF_SHIFT \| HOTKEYF_CONTROL \| HOTKEYF_ALT))
	return TRUE;

	TRACE("() Modifiers are valid\n");
	return FALSE;
	}
	#undef IsOnlySet

	static void
	HOTKEY_DrawHotKey(HOTKEY_INFO *infoPtr, LPCWSTR KeyName, WORD NameLen,
	LPRECT rc, HDC hdc)
	{
	SIZE TextSize;
	DWORD dwExStyle = GetWindowLongW (infoPtr->hwndSelf, GWL_EXSTYLE);

	/* We have to allow some space for the frame to be drawn */
	rc->left += 2;
	rc->top++;
	DrawTextW(hdc, KeyName, NameLen, rc, DT_LEFT \| DT_VCENTER);
	rc->left -= 2;
	rc->top--;
	if(dwExStyle & WS_EX_CLIENTEDGE)
	DrawEdge(hdc, rc, EDGE_SUNKEN, BF_RECT \| BF_ADJUST);

	/* Get the text size and position the caret accordingly */
	GetTextExtentPoint32W (hdc, KeyName, NameLen, &TextSize);
	infoPtr->CaretPos = TextSize.cx + 2;
	SetCaretPos(infoPtr->CaretPos, 3);
	}

	/* Draw the names of the keys in the control */
	static void
	HOTKEY_Refresh(HOTKEY_INFO *infoPtr, HDC hdc)
	{
	WCHAR KeyName[sizeof(WCHAR) * 64];
	WORD NameLen = 0;
	BYTE Modifier;
	RECT rc;

	GetClientRect(infoPtr->hwndSelf, &rc);

	TRACE("(infoPtr=%p hdc=%p)\n", infoPtr, hdc);

	if(!infoPtr->CurrMod && !infoPtr->HotKey) {
	HOTKEY_DrawHotKey (infoPtr, infoPtr->strNone, 4, &rc, hdc);
	return;
	}

	if(infoPtr->HotKey)
	Modifier = HIBYTE(infoPtr->HotKey);
	else if(HOTKEY_IsCombInv(infoPtr))
	Modifier = infoPtr->InvMod;
	else
	Modifier = infoPtr->CurrMod;

	if(Modifier & HOTKEYF_CONTROL) {
	GetKeyNameTextW(MAKELPARAM(0, MapVirtualKeyW(VK_CONTROL, 0)),
	KeyName, 64);
	NameLen = lstrlenW(KeyName);
	memcpy(&KeyName[NameLen], HOTKEY_plussep, sizeof(HOTKEY_plussep));
	NameLen += 3;
	}
	if(Modifier & HOTKEYF_SHIFT) {
	GetKeyNameTextW(MAKELPARAM(0, MapVirtualKeyW(VK_SHIFT, 0)),
	&KeyName[NameLen], 64 - NameLen);
	NameLen = lstrlenW(KeyName);
	memcpy(&KeyName[NameLen], HOTKEY_plussep, sizeof(HOTKEY_plussep));
	NameLen += 3;
	}
	if(Modifier & HOTKEYF_ALT) {
	GetKeyNameTextW(MAKELPARAM(0, MapVirtualKeyW(VK_MENU, 0)),
	&KeyName[NameLen], 64 - NameLen);
	NameLen = lstrlenW(KeyName);
	memcpy(&KeyName[NameLen], HOTKEY_plussep, sizeof(HOTKEY_plussep));
	NameLen += 3;
	}

	if(infoPtr->HotKey) {
	GetKeyNameTextW(infoPtr->ScanCode, &KeyName[NameLen], 64 - NameLen);
	NameLen = lstrlenW(KeyName);
	}
	else
	KeyName[NameLen] = 0;

	HOTKEY_DrawHotKey (infoPtr, KeyName, NameLen, &rc, hdc);
	}

	static void
	HOTKEY_Paint(HOTKEY_INFO *infoPtr, HDC hdc)
	{
	if (hdc)
	HOTKEY_Refresh(infoPtr, hdc);
	else {
	PAINTSTRUCT ps;
	hdc = BeginPaint (infoPtr->hwndSelf, &ps);
	HOTKEY_Refresh (infoPtr, hdc);
	EndPaint (infoPtr->hwndSelf, &ps);
	}
	}

	static LRESULT
	HOTKEY_GetHotKey(HOTKEY_INFO *infoPtr)
	{
	TRACE("(infoPtr=%p) Modifiers: 0x%x, Virtual Key: %d\n", infoPtr,
	HIBYTE(infoPtr->HotKey), LOBYTE(infoPtr->HotKey));
	return (LRESULT)infoPtr->HotKey;
	}

	static void
	HOTKEY_SetHotKey(HOTKEY_INFO *infoPtr, WPARAM wParam)
	{
	infoPtr->HotKey = (WORD)wParam;
	infoPtr->ScanCode =
	MAKELPARAM(0, MapVirtualKeyW(LOBYTE(infoPtr->HotKey), 0));
	TRACE("(infoPtr=%p wParam=%x) Modifiers: 0x%x, Virtual Key: %d\n", infoPtr,
	wParam, HIBYTE(infoPtr->HotKey), LOBYTE(infoPtr->HotKey));
	InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
	}

	static void
	HOTKEY_SetRules(HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
	{
	infoPtr->InvComb = (WORD)wParam;
	infoPtr->InvMod = (WORD)lParam;
	TRACE("(infoPtr=%p) Invalid Modifers: 0x%x, If Invalid: 0x%x\n", infoPtr,
	infoPtr->InvComb, infoPtr->InvMod);
	}

	/* << HOTKEY_Char >> */

	static LRESULT
	HOTKEY_Create (HWND hwnd, WPARAM wParam, LPARAM lParam)
	{
	HOTKEY_INFO *infoPtr;
	TEXTMETRICW tm;
	HDC hdc;

	/* allocate memory for info structure */
	infoPtr = (HOTKEY_INFO *)COMCTL32_Alloc (sizeof(HOTKEY_INFO));
	SetWindowLongW (hwnd, 0, (DWORD)infoPtr);

	/* initialize info structure */
	infoPtr->HotKey = infoPtr->InvComb = infoPtr->InvMod = infoPtr->CurrMod = 0;
	infoPtr->CaretPos = 2;
	infoPtr->hwndSelf = hwnd;
	LoadStringW(COMCTL32_hModule, HKY_NONE, infoPtr->strNone, 15);

	/* get default font height */
	hdc = GetDC (hwnd);
	GetTextMetricsW (hdc, &tm);
	infoPtr->nHeight = tm.tmHeight;
	ReleaseDC (hwnd, hdc);

	return 0;
	}


	static LRESULT
	HOTKEY_Destroy (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
	{
	HWND hwnd = infoPtr->hwndSelf;
	/* free hotkey info data */
	COMCTL32_Free (infoPtr);
	SetWindowLongW (hwnd, 0, 0);
	return 0;
	}


	static LRESULT
	HOTKEY_EraseBackground (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
	{
	HBRUSH hBrush;
	RECT rc;

	hBrush =
	(HBRUSH)SendMessageW (GetParent (infoPtr->hwndSelf), WM_CTLCOLOREDIT,
	wParam, (LPARAM)infoPtr->hwndSelf);
	if (hBrush)
	hBrush = (HBRUSH)GetStockObject (WHITE_BRUSH);
	GetClientRect (infoPtr->hwndSelf, &rc);

	FillRect ((HDC)wParam, &rc, hBrush);

	return -1;
	}


	inline static LRESULT
	HOTKEY_GetFont (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
	{
	return (LRESULT)infoPtr->hFont;
	}

	static LRESULT
	HOTKEY_KeyDown (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
	{
	TRACE("() Key: %d\n", wParam);
	/* If any key is Pressed, we have to reset the hotkey in the control */
	infoPtr->HotKey = 0;

	switch (wParam) {
	case VK_RETURN:
	case VK_TAB:
	case VK_SPACE:
	case VK_DELETE:
	case VK_ESCAPE:
	case VK_BACK:
	InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
	return DefWindowProcW (infoPtr->hwndSelf, WM_KEYDOWN, wParam,
	lParam);

	case VK_SHIFT:
	infoPtr->CurrMod \|= HOTKEYF_SHIFT;
	break;
	case VK_CONTROL:
	infoPtr->CurrMod \|= HOTKEYF_CONTROL;
	break;
	case VK_MENU:
	infoPtr->CurrMod \|= HOTKEYF_ALT;
	break;

	default:
	if(HOTKEY_IsCombInv(infoPtr))
	infoPtr->HotKey = MAKEWORD(wParam, infoPtr->InvMod);
	else
	infoPtr->HotKey = MAKEWORD(wParam, infoPtr->CurrMod);
	infoPtr->ScanCode = lParam;
	break;
	}

	InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);
	return 0;
	}


	static LRESULT
	HOTKEY_KeyUp (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
	{
	TRACE("() Key: %d\n", wParam);
	switch (wParam) {
	case VK_SHIFT:
	infoPtr->CurrMod &= ~HOTKEYF_SHIFT;
	break;
	case VK_CONTROL:
	infoPtr->CurrMod &= ~HOTKEYF_CONTROL;
	break;
	case VK_MENU:
	infoPtr->CurrMod &= ~HOTKEYF_ALT;
	break;
	default:
	return 1;
	}

	InvalidateRect(infoPtr->hwndSelf, NULL, TRUE);

	return 0;
	}


	static LRESULT
	HOTKEY_KillFocus (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
	{
	infoPtr->bFocus = FALSE;
	DestroyCaret ();

	return 0;
	}


	static LRESULT
	HOTKEY_LButtonDown (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
	{
	SetFocus (infoPtr->hwndSelf);

	return 0;
	}


	inline static LRESULT
	HOTKEY_NCCreate (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
	{
	DWORD dwExStyle = GetWindowLongW (infoPtr->hwndSelf, GWL_EXSTYLE);
	SetWindowLongW (infoPtr->hwndSelf, GWL_EXSTYLE,
	dwExStyle \| WS_EX_CLIENTEDGE);
	return DefWindowProcW (infoPtr->hwndSelf, WM_NCCREATE, wParam, lParam);
	}

	static LRESULT
	HOTKEY_SetFocus (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
	{
	infoPtr->bFocus = TRUE;


	CreateCaret (infoPtr->hwndSelf, (HBITMAP)0, 1, infoPtr->nHeight - 2);

	SetCaretPos (infoPtr->CaretPos, 3);

	ShowCaret (infoPtr->hwndSelf);


	return 0;
	}


	inline static LRESULT
	HOTKEY_SetFont (HOTKEY_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
	{
	TEXTMETRICW tm;
	HDC hdc;
	HFONT hOldFont = 0;

	infoPtr->hFont = (HFONT)wParam;

	hdc = GetDC (infoPtr->hwndSelf);
	if (infoPtr->hFont)
	hOldFont = SelectObject (hdc, infoPtr->hFont);

	GetTextMetricsW (hdc, &tm);
	infoPtr->nHeight = tm.tmHeight;

	if (infoPtr->hFont)
	SelectObject (hdc, hOldFont);
	ReleaseDC (infoPtr->hwndSelf, hdc);

	if (LOWORD(lParam))
	InvalidateRect (infoPtr->hwndSelf, NULL, TRUE);

	return 0;
	}

	static LRESULT WINAPI
	HOTKEY_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
	{
	HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd);
	TRACE("hwnd=%p msg=%x wparam=%x lparam=%lx\n", hwnd, uMsg, wParam, lParam);
	if (!infoPtr && (uMsg != WM_CREATE))
	return DefWindowProcW (hwnd, uMsg, wParam, lParam);
	switch (uMsg)
	{
	case HKM_GETHOTKEY:
	return HOTKEY_GetHotKey (infoPtr);
	case HKM_SETHOTKEY:
	HOTKEY_SetHotKey (infoPtr, wParam);
	break;
	case HKM_SETRULES:
	HOTKEY_SetRules (infoPtr, wParam, lParam);
	break;

	/* case WM_CHAR: */

	case WM_CREATE:
	return HOTKEY_Create (hwnd, wParam, lParam);

	case WM_DESTROY:
	return HOTKEY_Destroy (infoPtr, wParam, lParam);

	case WM_ERASEBKGND:
	return HOTKEY_EraseBackground (infoPtr, wParam, lParam);

	case WM_GETDLGCODE:
	return DLGC_WANTCHARS \| DLGC_WANTARROWS;

	case WM_GETFONT:
	return HOTKEY_GetFont (infoPtr, wParam, lParam);

	case WM_KEYDOWN:
	case WM_SYSKEYDOWN:
	return HOTKEY_KeyDown (infoPtr, wParam, lParam);

	case WM_KEYUP:
	case WM_SYSKEYUP:
	return HOTKEY_KeyUp (infoPtr, wParam, lParam);

	case WM_KILLFOCUS:
	return HOTKEY_KillFocus (infoPtr, wParam, lParam);

	case WM_LBUTTONDOWN:
	return HOTKEY_LButtonDown (infoPtr, wParam, lParam);

	case WM_NCCREATE:
	return HOTKEY_NCCreate (infoPtr, wParam, lParam);

	case WM_PAINT:
	HOTKEY_Paint(infoPtr, (HDC)wParam);
	return 0;

	case WM_SETFOCUS:
	return HOTKEY_SetFocus (infoPtr, wParam, lParam);

	case WM_SETFONT:
	return HOTKEY_SetFont (infoPtr, wParam, lParam);

	/* case WM_SYSCHAR: */

	default:
	if ((uMsg >= WM_USER) && (uMsg < WM_APP))
	ERR("unknown msg %04x wp=%08x lp=%08lx\n",
	uMsg, wParam, lParam);
	return DefWindowProcW (hwnd, uMsg, wParam, lParam);
	}
	return 0;
	}


	void
	HOTKEY_Register (void)
	{
	WNDCLASSW wndClass;

	ZeroMemory (&wndClass, sizeof(WNDCLASSW));
	wndClass.style = CS_GLOBALCLASS;
	wndClass.lpfnWndProc = (WNDPROC)HOTKEY_WindowProc;
	wndClass.cbClsExtra = 0;
	wndClass.cbWndExtra = sizeof(HOTKEY_INFO *);
	wndClass.hCursor = 0;
	wndClass.hbrBackground = 0;
	wndClass.lpszClassName = HOTKEY_CLASSW;

	RegisterClassW (&wndClass);
	}


	void
	HOTKEY_Unregister (void)
	{
	UnregisterClassW (HOTKEY_CLASSW, (HINSTANCE)NULL);
	}