draw.c

winNT技术操作系统,国外开放的原代码和LIUX一样

            SetTextColor(dc, GetSysColor(COLOR_BTNHIGHLIGHT));
            TextOutA(dc, xc-size.cx/2+1, yc-size.cy/2+1, str, 1);
        }
        SetTextColor(dc, GetSysColor(colorIdx));
        TextOutA(dc, xc-size.cx/2, yc-size.cy/2, str, 1);

        SelectObject(dc, hfsave);
        SetTextColor(dc, clrsave);
        SetBkMode(dc, bksave);
        SetTextAlign(dc, alignsave);
        DeleteObject(hf);
        return TRUE;

    case DFCS_CAPTIONMIN:
        /*
         * If the button goes from x 0 -- w-1, the leftmost point of the
         * minimize line always starts at x>=4.
         */
        {
            const int width = myr.right - myr.left;
            const int xInsetPixels = (width>=9 ? width - 9 : 0) / 8 + 4;
            Line1[0].x = Line1[3].x = myr.left   + xInsetPixels;
            Line1[1].x = Line1[2].x = Line1[0].x + 372*SmallDiam/750;
            Line1[0].y = Line1[1].y = myr.top    + 563*SmallDiam/750+1;
            Line1[2].y = Line1[3].y = Line1[0].y +  92*SmallDiam/750;
            Line1N = 4;
            Line2N = 0;
        }
        break;

    case DFCS_CAPTIONMAX:
        edge = 47*SmallDiam/750;
        Line1[0].x = Line1[5].x = myr.left +  57*SmallDiam/750+3;
        Line1[0].y = Line1[1].y = myr.top  + 143*SmallDiam/750+1;
        Line1[1].x = Line1[2].x = Line1[0].x + 562*SmallDiam/750;
        Line1[5].y = Line1[4].y = Line1[0].y +  93*SmallDiam/750;
        Line1[2].y = Line1[3].y = Line1[0].y + 513*SmallDiam/750;
        Line1[3].x = Line1[4].x = Line1[1].x -  edge;

        Line2[0].x = Line2[5].x = Line1[0].x;
        Line2[3].x = Line2[4].x = Line1[1].x;
        Line2[1].x = Line2[2].x = Line1[0].x + edge;
        Line2[0].y = Line2[1].y = Line1[0].y;
        Line2[4].y = Line2[5].y = Line1[2].y;
        Line2[2].y = Line2[3].y = Line1[2].y - edge;
        Line1N = 6;
        Line2N = 6;
        break;

    case DFCS_CAPTIONRESTORE:
        /* FIXME: this one looks bad at small sizes < 15x15 :( */
        edge = 47*SmallDiam/750;
        move = 420*SmallDiam/750;
        Line1[0].x = Line1[9].x = myr.left + 198*SmallDiam/750+2;
        Line1[0].y = Line1[1].y = myr.top  + 169*SmallDiam/750+1;
        Line1[6].y = Line1[7].y = Line1[0].y + 93*SmallDiam/750;
        Line1[7].x = Line1[8].x = Line1[0].x + edge;
        Line1[1].x = Line1[2].x = Line1[0].x + move;
        Line1[5].x = Line1[6].x = Line1[1].x - edge;
        Line1[9].y = Line1[8].y = Line1[0].y + 187*SmallDiam/750;
        Line1[2].y = Line1[3].y = Line1[0].y + 327*SmallDiam/750;
        Line1[4].y = Line1[5].y = Line1[2].y - edge;
        Line1[3].x = Line1[4].x = Line1[2].x - 140*SmallDiam/750;

        Line2[1].x = Line2[2].x = Line1[3].x;
        Line2[7].x = Line2[8].x = Line2[1].x - edge;
        Line2[0].x = Line2[9].x = Line2[3].x = Line2[4].x = Line2[1].x - move;
        Line2[5].x = Line2[6].x = Line2[0].x + edge;
        Line2[0].y = Line2[1].y = Line1[9].y + 93*SmallDiam/750;
        Line2[4].y = Line2[5].y = Line2[8].y = Line2[9].y = Line2[0].y + 93*SmallDiam/750;
        Line2[2].y = Line2[3].y = Line2[0].y + 327*SmallDiam/750;
        Line2[6].y = Line2[7].y = Line2[2].y - edge;
        Line1N = 10;
        Line2N = 10;
        break;

    default:
        return FALSE;
    }

    /* Here the drawing takes place */
    if(uFlags & DFCS_INACTIVE)
    {
        /* If we have an inactive button, then you see a shadow */
        hbsave = (HBRUSH)SelectObject(dc, GetSysColorBrush(COLOR_BTNHIGHLIGHT));
        hpsave = (HPEN)SelectObject(dc, GetSysColorPen(COLOR_BTNHIGHLIGHT));
        Polygon(dc, Line1, Line1N);
        if(Line2N > 0)
            Polygon(dc, Line2, Line2N);
        SelectObject(dc, hpsave);
        SelectObject(dc, hbsave);
    }

    /* Correct for the shadow shift */
    if (!(uFlags & DFCS_PUSHED))
    {
        for(i = 0; i < Line1N; i++)
        {
            Line1[i].x--;
            Line1[i].y--;
        }
        for(i = 0; i < Line2N; i++)
        {
            Line2[i].x--;
            Line2[i].y--;
        }
    }

    /* Make the final picture */
    hbsave = (HBRUSH)SelectObject(dc, GetSysColorBrush(colorIdx));
    hpsave = (HPEN)SelectObject(dc, GetSysColorPen(colorIdx));

    Polygon(dc, Line1, Line1N);
    if(Line2N > 0)
        Polygon(dc, Line2, Line2N);
    SelectObject(dc, hpsave);
    SelectObject(dc, hbsave);

    return TRUE;
}

static BOOL UITOOLS95_DrawFrameScroll(HDC dc, LPRECT r, UINT uFlags)
{
    POINT Line[4];
    RECT myr;
    int SmallDiam = UITOOLS_MakeSquareRect(r, &myr) - 2;
    int i;
    HBRUSH hbsave, hb, hb2;
    HPEN hpsave, hp, hp2;
    int tri = 290*SmallDiam/1000 - 1;
    int d46, d93;

    /*
     * This fixes a problem with really tiny "scroll" buttons. In particular
     * with the updown control.
     * Making sure that the arrow is as least 3 pixels wide (or high).
     */
    if (tri == 0)
      tri = 1;

    switch(uFlags & 0xff)
    {
    case DFCS_SCROLLCOMBOBOX:
    case DFCS_SCROLLDOWN:
        Line[2].x = myr.left + 470*SmallDiam/1000 + 2;
        Line[2].y = myr.top  + 687*SmallDiam/1000 + 1;
        Line[0].x = Line[2].x - tri;
        Line[1].x = Line[2].x + tri;
        Line[0].y = Line[1].y = Line[2].y - tri;
        break;

    case DFCS_SCROLLUP:
        Line[2].x = myr.left + 470*SmallDiam/1000 + 2;
        Line[2].y = myr.bottom - (687*SmallDiam/1000 + 1);
        Line[0].x = Line[2].x - tri;
        Line[1].x = Line[2].x + tri;
        Line[0].y = Line[1].y = Line[2].y + tri;
        break;

    case DFCS_SCROLLLEFT:
        Line[2].x = myr.right - (687*SmallDiam/1000 + 1);
        Line[2].y = myr.top  + 470*SmallDiam/1000 + 2;
        Line[0].y = Line[2].y - tri;
        Line[1].y = Line[2].y + tri;
        Line[0].x = Line[1].x = Line[2].x + tri;
        break;

    case DFCS_SCROLLRIGHT:
        Line[2].x = myr.left + 687*SmallDiam/1000 + 1;
        Line[2].y = myr.top  + 470*SmallDiam/1000 + 2;
        Line[0].y = Line[2].y - tri;
        Line[1].y = Line[2].y + tri;
        Line[0].x = Line[1].x = Line[2].x - tri;
        break;

    case DFCS_SCROLLSIZEGRIP:
        /* This one breaks the flow... */
        IntDrawRectEdge(dc, r, EDGE_BUMP, BF_MIDDLE | ((uFlags&(DFCS_MONO|DFCS_FLAT)) ? BF_MONO : 0));
        hpsave = (HPEN)SelectObject(dc, GetStockObject(NULL_PEN));
        hbsave = (HBRUSH)SelectObject(dc, GetStockObject(NULL_BRUSH));
        if(uFlags & (DFCS_MONO|DFCS_FLAT))
        {
            hp = hp2 = GetSysColorPen(COLOR_WINDOWFRAME);
            hb = hb2 = GetSysColorBrush(COLOR_WINDOWFRAME);
        }
        else
        {
            hp  = GetSysColorPen(COLOR_BTNHIGHLIGHT);
            hp2 = GetSysColorPen(COLOR_BTNSHADOW);
            hb  = GetSysColorBrush(COLOR_BTNHIGHLIGHT);
            hb2 = GetSysColorBrush(COLOR_BTNSHADOW);
        }
        Line[0].x = Line[1].x = r->right-1;
        Line[2].y = Line[3].y = r->bottom-1;
        d46 = 46*SmallDiam/750;
        d93 = 93*SmallDiam/750;

        i = 586*SmallDiam/750;
        Line[0].y = r->bottom - i - 1;
        Line[3].x = r->right - i - 1;
        Line[1].y = Line[0].y + d46;
        Line[2].x = Line[3].x + d46;
        SelectObject(dc, hb);
        SelectObject(dc, hp);
        Polygon(dc, Line, 4);

        Line[1].y++; Line[2].x++;
        Line[0].y = Line[1].y + d93;
        Line[3].x = Line[2].x + d93;
        SelectObject(dc, hb2);
        SelectObject(dc, hp2);
        Polygon(dc, Line, 4);

        i = 398*SmallDiam/750;
        Line[0].y = r->bottom - i - 1;
        Line[3].x = r->right - i - 1;
        Line[1].y = Line[0].y + d46;
        Line[2].x = Line[3].x + d46;
        SelectObject(dc, hb);
        SelectObject(dc, hp);
        Polygon(dc, Line, 4);

        Line[1].y++; Line[2].x++;
        Line[0].y = Line[1].y + d93;
        Line[3].x = Line[2].x + d93;
        SelectObject(dc, hb2);
        SelectObject(dc, hp2);
        Polygon(dc, Line, 4);

        i = 210*SmallDiam/750;
        Line[0].y = r->bottom - i - 1;
        Line[3].x = r->right - i - 1;
        Line[1].y = Line[0].y + d46;
        Line[2].x = Line[3].x + d46;
        SelectObject(dc, hb);
        SelectObject(dc, hp);
        Polygon(dc, Line, 4);

        Line[1].y++; Line[2].x++;
        Line[0].y = Line[1].y + d93;
        Line[3].x = Line[2].x + d93;
        SelectObject(dc, hb2);
        SelectObject(dc, hp2);
        Polygon(dc, Line, 4);

        SelectObject(dc, hpsave);
        SelectObject(dc, hbsave);
        return TRUE;

    default:
        return FALSE;
    }

    /* Here do the real scroll-bar controls end up */
    if( ! (uFlags & (0xff00 & ~DFCS_ADJUSTRECT)) )
      /* UITOOLS95_DFC_ButtonPush always uses BF_SOFT which we don't */
      /* want for the normal scroll-arrow button. */
      IntDrawRectEdge( dc, r, EDGE_RAISED, (uFlags&DFCS_ADJUSTRECT) | BF_MIDDLE | BF_RECT);
    else
      UITOOLS95_DFC_ButtonPush(dc, r, (uFlags & 0xff00) );

    if(uFlags & DFCS_INACTIVE)
    {
        hbsave = (HBRUSH)SelectObject(dc, GetSysColorBrush(COLOR_BTNHIGHLIGHT));
        hpsave = (HPEN)SelectObject(dc, GetSysColorPen(COLOR_BTNHIGHLIGHT));
        Polygon(dc, Line, 3);
        SelectObject(dc, hpsave);
        SelectObject(dc, hbsave);
    }

    if( (uFlags & DFCS_INACTIVE) || !(uFlags & DFCS_PUSHED) )
      for(i = 0; i < 3; i++)
      {
        Line[i].x--;
        Line[i].y--;
      }

    i = uFlags & DFCS_INACTIVE ? COLOR_BTNSHADOW : COLOR_BTNTEXT;
    hbsave = (HBRUSH)SelectObject(dc, GetSysColorBrush(i));
    hpsave = (HPEN)SelectObject(dc, GetSysColorPen(i));
    Polygon(dc, Line, 3);
    SelectObject(dc, hpsave);
    SelectObject(dc, hbsave);

    return TRUE;
}

/* Ported from WINE20020904 */
/* Draw a menu control coming from DrawFrameControl() */
static BOOL UITOOLS95_DrawFrameMenu(HDC dc, LPRECT r, UINT uFlags)
{
    POINT Points[6];
    RECT myr;
    int SmallDiam = UITOOLS_MakeSquareRect(r, &myr);
    int i;
    HBRUSH hbsave;
    HPEN hpsave;
    int xe, ye;
    int xc, yc;
    BOOL retval = TRUE;

    /* Using black and white seems to be utterly wrong, but win95 doesn't */
    /* use anything else. I think I tried all sys-colors to change things */
    /* without luck. It seems as if this behavior is inherited from the */
    /* win31 DFC() implementation... (you remember, B/W menus). */

    FillRect(dc, r, (HBRUSH)GetStockObject(WHITE_BRUSH));

    hbsave = (HBRUSH)SelectObject(dc, GetStockObject(BLACK_BRUSH));
    hpsave = (HPEN)SelectObject(dc, GetStockObject(BLACK_PEN));

    switch(uFlags & 0xff)
    {
    case DFCS_MENUARROW:
        i = 187*SmallDiam/750;
        Points[2].x = myr.left + 468*SmallDiam/750;
        Points[2].y = myr.top  + 352*SmallDiam/750+1;
        Points[0].y = Points[2].y - i;
        Points[1].y = Points[2].y + i;
        Points[0].x = Points[1].x = Points[2].x - i;
        Polygon(dc, Points, 3);
        break;

    case DFCS_MENUBULLET:
        xe = myr.left;
        ye = myr.top  + SmallDiam - SmallDiam/2;
        xc = myr.left + SmallDiam - SmallDiam/2;
        yc = myr.top  + SmallDiam - SmallDiam/2;
        i = 234*SmallDiam/750;
        i = i < 1 ? 1 : i;
        myr.left   = xc - i+i/2;
        myr.right  = xc + i/2;
        myr.top    = yc - i+i/2;
        myr.bottom = yc + i/2;
        Pie(dc, myr.left, myr.top, myr.right, myr.bottom, xe, ye, xe, ye);
        break;

    case DFCS_MENUCHECK:
        Points[0].x = myr.left + 253*SmallDiam/1000;
        Points[0].y = myr.top  + 445*SmallDiam/1000;
        Points[1].x = myr.left + 409*SmallDiam/1000;
        Points[1].y = Points[0].y + (Points[1].x-Points[0].x);
        Points[2].x = myr.left + 690*SmallDiam/1000;
        Points[2].y = Points[1].y - (Points[2].x-Points[1].x);
        Points[3].x = Points[2].x;
        Points[3].y = Points[2].y + 3*SmallDiam/16;
        Points[4].x = Points[1].x;
        Points[4].y = Points[1].y + 3*SmallDiam/16;
        Points[5].x = Points[0].x;
        Points[5].y = Points[0].y + 3*SmallDiam/16;
        Polygon(dc, Points, 6);
        break;

    default:
/*
        DbgPrint("Invalid menu; flags=0x%04x\n", uFlags);
*/
        retval = FALSE;
        break;
    }

    SelectObject(dc, hpsave);
    SelectObject(dc, hbsave);
    return retval;
}


BOOL
STDCALL
IntGrayString(
  HDC hDC,
  HBRUSH hBrush,
  GRAYSTRINGPROC lpOutputFunc,
  LPARAM lpData,
  int nCount,
  int X,
  int Y,
  int nWidth,
  int nHeight,
  BOOL unicode)
{
    // AG: Mostly implemented, but probably won't work properly or return
    // correct error codes. I doubt it grays strings either... Untested!

    BOOL    success = FALSE;
    HDC     MemDC = NULL;
    HBITMAP MemBMP = NULL,
            OldBMP = NULL;
    HBRUSH  OldBrush = NULL;
    HFONT   OldFont = NULL;
    RECT    r;
    COLORREF ForeColor, BackColor;

    ForeColor = SetTextColor(hDC, RGB(0, 0, 0));
    BackColor = SetBkColor(hDC, RGB(255, 255, 255));


    if (! hBrush)
    {
        // The documentation is a little vague on what exactly should happen
        // here. Something about using the same brush for window text???
        hBrush = (HBRUSH) GetCurrentObject(hDC, OBJ_BRUSH);
    }

    if ((nCount == -1) && (! lpOutputFunc))
        return FALSE;

    if (! nCount)
    {
        // TODO: calculate the length (easy enough)

        if (unicode)
            nCount = lstrlenW((WCHAR*)lpData);
        else
            nCount = lstrlenA((CHAR*)lpData);
    }

    if (! nWidth || ! nHeight)
    {
        SIZE s;
        // TODO: calculate the rect

        if (unicode)
            success = GetTextExtentPoint32W(hDC, (WCHAR*) lpData, nCount, &s);
        else
            success = GetTextExtentPoint32A(hDC, (CHAR*) lpData, nCount, &s);

        if (! success) goto cleanup;

        if (! nWidth)   nWidth = s.cx;
        if (! nHeight)  nHeight = s.cy;
    }

    SetRect(&r, X, Y, X + nWidth, Y + nHeight);

    MemDC = CreateCompatibleDC(hDC);
    if (! MemDC) goto cleanup;
    MemBMP = CreateBitmap(nWidth, nHeight, 1, 1, NULL);
    if (! MemBMP) goto cleanup;
    OldBMP = SelectObject(MemDC, MemBMP);
    if (! OldBMP) goto cleanup;
    OldFont = SelectObject(MemDC, GetCurrentObject(hDC, OBJ_FONT));
    if (! OldFont) goto cleanup;
    OldBrush = SelectObject(MemDC, hBrush);
    if (! OldBrush) goto cleanup;

    if (! BitBlt(MemDC, 0, 0, nWidth, nHeight, hDC, X, Y, SRCCOPY)) goto cleanup;

    SetTextColor(MemDC, RGB(255, 255, 255));
    SetBkColor(MemDC, RGB(0, 0, 0));

    if (lpOutputFunc)
    {
        success = lpOutputFunc(MemDC, lpData, nCount); // Set brush etc first?

        if ((nCount == -1) && (! success))
        {
            // Don't gray (documented behaviour)
            success = (BOOL) BitBlt(hDC, X, Y, nWidth, nHeight, MemDC, 0, 0, SRCCOPY);
            goto cleanup;
        }
    }
    else