source: trunk/src/comctl32/hotkey.c@ 60

/*
 * Hotkey control
 *
 * Copyright 1998, 1999 Eric Kohl
 * Copyright 1999 Achim Hasenmueller
 *
 * NOTES
 *   Development in progress. An author is needed! Any volunteers?
 *   I will only improve this control once in a while.
 *     Eric <ekohl@abo.rhein-zeitung.de>
 *
 * TODO:
 *   - Some messages.
 *   - Display code.
 */

#include "winbase.h"
#include "commctrl.h"
#include "hotkey.h"


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


/* << HOTHEY_GetHotKey >> */
/* << HOTHEY_SetHotKey >> */
/* << HOTHEY_SetRules >> */



/* << HOTKEY_Char >> */


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

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

    /* initialize info structure */


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

    return 0;
}


static LRESULT
HOTKEY_Destroy (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
    HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd);



    /* free hotkey info data */
    COMCTL32_Free (infoPtr);

    return 0;
}


static LRESULT
HOTKEY_EraseBackground (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
    /* HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd); */
    HBRUSH hBrush;
    RECT   rc;

    hBrush =
        (HBRUSH)SendMessageA (GetParent (hwnd), WM_CTLCOLOREDIT,
                                wParam, (LPARAM)hwnd);
    if (hBrush)
        hBrush = (HBRUSH)GetStockObject (WHITE_BRUSH);
    GetClientRect (hwnd, &rc);

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

    return -1;
}


static LRESULT
HOTKEY_GetFont (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
    HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd);

    return infoPtr->hFont;
}


static LRESULT
HOTKEY_KeyDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
    /* HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd); */

    switch (wParam) {
        case VK_RETURN:
        case VK_TAB:
        case VK_SPACE:
        case VK_DELETE:
        case VK_ESCAPE:
        case VK_BACK:
            return DefWindowProcA (hwnd, WM_KEYDOWN, wParam, lParam);

        case VK_SHIFT:
        case VK_CONTROL:
        case VK_MENU:
//          FIXME (hotkey, "modifier key pressed!\n");
            break;

        default:
//          FIXME (hotkey, " %d\n", wParam);
            break;
    }

    return TRUE;
}


static LRESULT
HOTKEY_KeyUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
    /* HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd); */

//    FIXME (hotkey, " %d\n", wParam);

    return 0;
}


static LRESULT
HOTKEY_KillFocus (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
    HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd);

    infoPtr->bFocus = FALSE;
    DestroyCaret ();

    return 0;
}


static LRESULT
HOTKEY_LButtonDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
/*    HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd); */

    SetFocus (hwnd);

    return 0;
}


static LRESULT
HOTKEY_NCCreate (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
    DWORD dwExStyle = GetWindowLongA (hwnd, GWL_EXSTYLE);
    SetWindowLongA (hwnd, GWL_EXSTYLE, dwExStyle | WS_EX_CLIENTEDGE);
    return DefWindowProcA (hwnd, WM_NCCREATE, wParam, lParam);
}





static LRESULT
HOTKEY_SetFocus (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
    HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd);

    infoPtr->bFocus = TRUE;


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

    SetCaretPos (1, 1);

    ShowCaret (hwnd);


    return 0;
}


static LRESULT
HOTKEY_SetFont (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
    HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd);
    TEXTMETRICA tm;
    HDC hdc;
    HFONT hOldFont = 0;

    infoPtr->hFont = (HFONT)wParam;

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

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

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

    if (LOWORD(lParam)) {

//      FIXME (hotkey, "force redraw!\n");

    }

    return 0;
}


static LRESULT WINE_UNUSED
HOTKEY_SysKeyDown (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
    /* HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd); */

    switch (wParam) {
        case VK_RETURN:
        case VK_TAB:
        case VK_SPACE:
        case VK_DELETE:
        case VK_ESCAPE:
        case VK_BACK:
            return DefWindowProcA (hwnd, WM_SYSKEYDOWN, wParam, lParam);

        case VK_SHIFT:
        case VK_CONTROL:
        case VK_MENU:
//          FIXME (hotkey, "modifier key pressed!\n");
            break;

        default:
//          FIXME (hotkey, " %d\n", wParam);
            break;
    }

    return TRUE;
}


static LRESULT WINE_UNUSED
HOTKEY_SysKeyUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
    /* HOTKEY_INFO *infoPtr = HOTKEY_GetInfoPtr (hwnd); */

//    FIXME (hotkey, " %d\n", wParam);

    return 0;
}



LRESULT WINAPI
HOTKEY_WindowProc (HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg)
    {
/*      case HKM_GETHOTKEY: */
/*      case HKM_SETHOTKEY: */
/*      case HKM_SETRULES: */

/*      case WM_CHAR: */

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

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

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

        case WM_GETDLGCODE:
            return DLGC_WANTCHARS | DLGC_WANTARROWS;

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

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

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

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

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

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

/*      case WM_PAINT: */

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

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

/*      case WM_SYSCHAR: */

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


VOID
HOTKEY_Register (VOID)
{
    WNDCLASSA wndClass;

    if (GlobalFindAtomA (HOTKEY_CLASSA)) return;

    ZeroMemory (&wndClass, sizeof(WNDCLASSA));
    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_CLASSA;
 
    RegisterClassA (&wndClass);
}


VOID
HOTKEY_Unregister (VOID)
{
    if (GlobalFindAtomA (HOTKEY_CLASSA))
        UnregisterClassA (HOTKEY_CLASSA, (HINSTANCE)NULL);
}