combobox.c

TN-kernel内核针对LPC系列ARM7处理器和S3C44B0X重新定制好的源代码包。内含Nano-X GUI。

/*--------------------------------------------------------------------------
**      ComboBox.c             Twin           From:  Twin/controls
**
**
**------------------------- < License Information > ------------------------
**
**      This file was originally a part of Willows TWIN.  Willows
**  TWIN was released under a Library GPL (LGPL).  This permits
**  redistribution of this source code, provided that the full
**  TWIN license is in effect, and provided that all modifications
**  to this source code are made publicly available.
**  Please refer to Willows software (www.willows.com) or
**  LICENSE for full information.
**
**      Under Twine, this file is also protected by an LGPL.  Please
**  see LICENSE for full details on this license.
**
**
**      Copyright 1997 Willows Software, Inc.
**------------------------ < File Content Description > --------------------
**
**  Module:         controls/ComboBox.c
**
**  Description:
**
**
**  Functions defined:
**
**------------------------- < Revision Information > -----------------------
**
**      Full Revision history at bottom of file
**
**--------------------------------------------------------------------------*/
#include "windows.h"
#include "windowsx.h"
#include "mwsystem.h"

//#define WinMalloc(n)        malloc((n))
//#define WinFree(p)        free(p)

#define GET_WM_COMMAND_ID(wp, lp)               LOWORD(wp)
#define GET_WM_COMMAND_HWND(wp, lp)             (HWND)(lp)
#define GET_WM_COMMAND_CMD(wp, lp)              HIWORD(wp)
#define GET_WM_COMMAND_MPS(id, hwnd, cmd)    \
        (WPARAM)MAKELONG(id, cmd), (LONG)(hwnd)
#define LOSHORT(x)        (short int)LOWORD(x)
#define Edit_SetSel(hwndCtl, ichStart, ichEnd)  ((void)SendMessage((hwndCtl), EM_SETSEL, (ichStart), (ichEnd)))


typedef struct  {
    HFONT   hFont;          /* hFont used */
    HWND    hWndParent;     /* parent window */
    UINT    nID;            /* control ID */
    WORD    wStateFlags;    /* combobox state flags */
    UINT    wStyle;         /* this is a copy of LOWORD(style) */
    BOOL    bExtended;      /* extended UI flag */
    BOOL    bRedraw;        /* MiD - redraw flag, draw only if it's 1 */
    HWND    EditControl;    /* edit/static control hWnd */
    HWND    ListBoxControl; /* listbox control hWnd */
    RECT    ButtonRect;     /* local button rect (client) */
    RECT    ListBoxRect;    /* listbox rect (screen) */
    UINT    uHeight;        /* height of the normal state */
    WNDPROC lpfnOldStatic;  /* previous static wndproc */
    UINT    nListItems;     /* ecw */
} COMBOBOX;

#define CWD_LPCBDATA  0
#define CBC_EDITID    1

#define CSF_CAPTUREACTIVE   0x0001
#define CSF_LOCALBUTTONDOWN 0x0002
#define CSF_BUTTONDOWN      0x0004
#define CSF_LBOXBUTTONDOWN  0x0008
#define CSF_FOCUS           0x0010 /* MiD */
#define CSF_HASDROPPED            0x0020 /* weav */

#define SET_STATE(lp, wMask)   (lp->wStateFlags |= (wMask))
#define CLEAR_STATE(lp, wMask) (lp->wStateFlags &= ~(wMask))
#define IS_SET(lp, wMask)      (lp->wStateFlags & (wMask))

#define BOWNERDRAW(l) ((l)->wStyle & (CBS_OWNERDRAWFIXED|CBS_OWNERDRAWVARIABLE))

/* ********************************************
    Styles:

    CBS_AUTOHSCROLL     passed to the edit control
    CBS_DISABLENOSCROLL passed to the listbox control
    CBS_DROPDOWN
    CBS_DROPDOWNLIST
    CBS_HASSTRINGS      passed to the listbox control
    CBS_NOINTEGRALHEIGHT    passed to the listbox control
    CBS_OEMCONVERT      passed to the edit control
    CBS_OWNERDRAWFIXED  passed to the listbox control
    CBS_OWNERDRAWVARIABLE   passed to the listbox control
    CBS_SIMPLE      TODO
    CBS_SORT        passed to the listbox control

    WS_VSCROLL      passed to the listbox control

*********************************************/

/* ********************************************
    CBN_xxx messages to be added

    from mouse tracking...
    CBN_SELENDCANCEL    TODO
    CBN_SELENDOK        TODO

*********************************************/

/* imported stuff */
#if 1
void
Draw3DButtonRect(HDC hDC, HPEN hPenHigh, HPEN hPenShadow,
                RECT rc, BOOL fClicked)
{
    HPEN     hPenOld;
    POINT    lpt[6];

    POINT    p3[3];
    int             shrink=1;

    hPenOld = SelectObject(hDC, hPenShadow);
    if (fClicked) {
        lpt[0].x = lpt[1].x = rc.left;
        lpt[1].y = lpt[2].y = rc.top;
        lpt[2].x = rc.right-1;
        lpt[0].y = rc.bottom-1;
        Polyline(hDC,lpt,3);
    }
    else {
        lpt[0].x = lpt[1].x = rc.right-1;
        lpt[0].y = rc.top;
        lpt[1].y = lpt[2].y = rc.bottom-1;
        lpt[2].x = rc.left;
        lpt[3].x = rc.left+1;
        lpt[3].y = lpt[4].y = rc.bottom-2;
        lpt[4].x = lpt[5].x = rc.right-2;
        lpt[5].y = rc.top+1;
        Polyline(hDC,lpt,6);

        SelectObject(hDC, hPenHigh);
        lpt[0].x = rc.right-1;
        lpt[0].y = lpt[1].y = rc.top;
        lpt[1].x = lpt[2].x = rc.left;
        lpt[2].y = rc.bottom-1;
        lpt[3].x = lpt[4].x = rc.left+1;
        lpt[3].y = rc.bottom-2;
        lpt[4].y = lpt[5].y = rc.top+1;
        lpt[5].x = rc.right-2;
        Polyline(hDC,lpt,6);
    }

    SelectObject(hDC,GetStockObject(BLACK_BRUSH));
    /* down */
    p3[0].x= rc.left + ((rc.right-rc.left)/2) - 1;
    p3[0].y= rc.bottom - 4 - shrink;
    p3[1].x= rc.left + 2 + shrink - 1;
    p3[1].y= rc.bottom-(rc.bottom-rc.top) + 2 + shrink;
    p3[2].x= rc.left + ((rc.right-rc.left)-4) - shrink;
    p3[2].y= rc.bottom-(rc.bottom-rc.top) + 2 + shrink;
    Polygon(hDC,p3,3);

    SelectObject(hDC,hPenOld);
}
#endif

#if 0        /* jmt: fix: no COMBOLBOX */
extern LRESULT  DefLISTBOXProc(HWND, UINT, WPARAM, LPARAM);
extern LRESULT  ListboxCtrlProc(HWND, UINT, WPARAM, LPARAM);
#endif

#if 0
static HPEN     GetSysColorPen(int color)
{
        return NULL;
}
static HBRUSH   GetSysColorBrush(int color)
{
        return NULL;
}
#endif

typedef HWND HWND32;

#if 0        /* jmt: fix: no ownerdraw */
typedef HANDLE HCLASS32;
static HCLASS32 FindClass(LPCSTR str, HINSTANCE hInstance)
{
        return NULL;
}
#endif

#if 0        /* jmt: fix: no scrollbar */
static HWND TWIN_ConvertToSysScroll(HWND hwnd, BOOL status, LPPOINT pp)
{
        return NULL;
}
#endif
extern HWND listwp;
static HWND WindowFromPoint(POINT pt)
{
        HWND wp,wp1;
        int dx,dy,dx1,dy1;
#if 0
        return NULL;        /* fix!! */
#else
        wp1=NULL;
        switch(sizeof(dx))
        {
        case 4:
                dx=0x7fffffff;
                dy=0x7fffffff;
                break;
        case 2:
                dx=0x7fff;
                dy=0x7fff;
                break;
        }
        for(wp=listwp; wp; wp=wp->next)
        {
                if (wp->winrect.left <= pt.x && pt.x <= wp->winrect.right)
                {
                        dx1=(wp->winrect.right-pt.x);
                        if (dx1<dx)
                        {
                                wp1=wp;
                                dx=dx1;
                        }
                        dx1=(pt.x-wp->winrect.left);
                        if (dx1<dx)
                        {
                                wp1=wp;
                                dx=dx1;
                        }
                }
                if (wp->winrect.top <= pt.y && pt.y <= wp->winrect.bottom)
                {
                        dy1=(wp->winrect.bottom-pt.y);
                        if (dy1<dy)
                        {
                                wp1=wp;
                                dy=dy1;
                        }
                        dy1=(pt.y-wp->winrect.top);
                        if (dy1<dy)
                        {
                                wp1=wp;
                                dy=dy1;
                        }
                }
        }
#endif
        return wp1;
}

/* internal stuff */
static void CBoxDrawButton(HWND,UINT,COMBOBOX *);
static void CBoxSendMouseToLBox(COMBOBOX *, UINT, WPARAM, POINT);
static void CBoxCapture(HWND, WORD);
static void CBoxDrawEdit(COMBOBOX *, HWND, UINT);
static void CBoxDrawStatic(COMBOBOX *, HWND, UINT); /* MiD */

/* handle specific CB messages */
static LRESULT DefCBProc(HWND , UINT , WPARAM , LPARAM );

#if 0        /* jmt: fix: no ownerdraw */
static WNDPROC lpComboBinToNat = 0;
#endif

static LRESULT CALLBACK
DefComboboxProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam);

int WINAPI MwRegisterComboboxControl(HINSTANCE hInstance)
{
        WNDCLASS        wc;

        wc.style        = CS_HREDRAW | CS_VREDRAW | CS_DBLCLKS | CS_GLOBALCLASS;
        wc.lpfnWndProc        = (WNDPROC)DefComboboxProc;
        wc.cbClsExtra        = 0;
        wc.cbWndExtra        = 0;
        wc.hInstance        = hInstance;
        wc.hIcon        = NULL;
        wc.hCursor        = 0;
        wc.hbrBackground= GetStockObject(WHITE_BRUSH);
        wc.lpszMenuName        = NULL;
        wc.lpszClassName= "COMBOBOX";

        return RegisterClass(&wc);
}

static LRESULT CALLBACK
DefComboboxProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    PAINTSTRUCT ps;
    HDC      hDC;
    TEXTMETRIC tm;
#if 0        /* jmt: fix: no ownerdraw */
    MEASUREITEMSTRUCT mis;
#endif
    COMBOBOX *lp = (COMBOBOX *)NULL;
    LRESULT   rc;
    HINSTANCE hInst;
    POINT     cp,cpScreen,pp;
    UINT      uiKey;
    LPCREATESTRUCT lpcs;
#if 1        /* jmt: fix: no WM_WINDOWPOSCHANGING */
    LPWINDOWPOS lpwp;
#endif
#if 0        /* jmt: fix: no ownerdraw */
    HCLASS32 hComboClass32;
    LPMEASUREITEMSTRUCT lpmis;
    LPDRAWITEMSTRUCT lpdis;
    LPDELETEITEMSTRUCT lpdlis;
#endif
    DWORD dwStyle,dwExStyle;
    WORD wEditWidth = 0,wEditHeight;
    WORD wCBN;
#if 0        /* jmt: fix: no WM_SETFONT/WM_GETFONT */
    RECT rcClient;
#endif

    rc = CB_OKAY;
    if ((uMsg != WM_CREATE/*WM_NCCREATE*/) && /*(uMsg != WM_CONVERT) &&*/
       !(lp = (COMBOBOX *)hWnd->userdata/*GetWindowLong(hWnd,CWD_LPCBDATA)*/))
            return rc;

    switch(uMsg) {
#if 0
    case WM_SIZE:
    case WM_ENABLE:
    case WM_LBUTTONDBLCLK:
    case WM_COMPAREITEM:
    case WM_CUT:
    case WM_CLEAR:
#endif

    case WM_SETFOCUS:
        SET_STATE(lp, CSF_FOCUS);
        if ((lp->wStyle & 0x0F) == CBS_DROPDOWNLIST)
           {
           uiKey = (UINT)SendMessage(lp->ListBoxControl, LB_GETCURSEL, 0, 0L);
           CBoxDrawStatic(lp, hWnd, uiKey);
           }
        if (lp->EditControl)
        {
           SetFocus(lp->EditControl);
        }
        break;

    case WM_KILLFOCUS:
        CLEAR_STATE(lp, CSF_FOCUS);
        if ((lp->wStyle & 0x0F) == CBS_DROPDOWNLIST)
        {
           uiKey = (UINT)SendMessage(lp->ListBoxControl, LB_GETCURSEL, 0, 0L);
           CBoxDrawStatic(lp, hWnd, uiKey);
        }