draw.c

来自「一个类似windows」· C语言 代码 · 共 1,894 行 · 第 1/4 页

        LTInnerI = LTInnerSoft[uType & (BDR_INNER|BDR_OUTER)];
        LTOuterI = LTOuterSoft[uType & (BDR_INNER|BDR_OUTER)];
        RBInnerI = RBInnerSoft[uType & (BDR_INNER|BDR_OUTER)];
        RBOuterI = RBOuterSoft[uType & (BDR_INNER|BDR_OUTER)];
    }
    else
    {
        LTInnerI = LTInnerNormal[uType & (BDR_INNER|BDR_OUTER)];
        LTOuterI = LTOuterNormal[uType & (BDR_INNER|BDR_OUTER)];
        RBInnerI = RBInnerNormal[uType & (BDR_INNER|BDR_OUTER)];
        RBOuterI = RBOuterNormal[uType & (BDR_INNER|BDR_OUTER)];
    }

    if((uFlags & BF_BOTTOMLEFT) == BF_BOTTOMLEFT)   LBpenplus = 1;
    if((uFlags & BF_TOPRIGHT) == BF_TOPRIGHT)       RTpenplus = 1;
    if((uFlags & BF_BOTTOMRIGHT) == BF_BOTTOMRIGHT) RBpenplus = 1;
    if((uFlags & BF_TOPLEFT) == BF_TOPLEFT)         LTpenplus = 1;

    if(LTInnerI != -1) LTInnerPen = GetSysColorPen(LTInnerI);
    if(LTOuterI != -1) LTOuterPen = GetSysColorPen(LTOuterI);
    if(RBInnerI != -1) RBInnerPen = GetSysColorPen(RBInnerI);
    if(RBOuterI != -1) RBOuterPen = GetSysColorPen(RBOuterI);
    if((uFlags & BF_MIDDLE) && retval)
	{
            FillRect(hdc, &InnerRect, GetSysColorBrush(uFlags & BF_MONO ?
                         COLOR_WINDOW : COLOR_BTNFACE));
	}
    MoveToEx(hdc, 0, 0, &SavePoint);

    /* Draw the outer edge */
    SelectObject(hdc, LTOuterPen);
    if(uFlags & BF_TOP)
    {
        MoveToEx(hdc, InnerRect.left, InnerRect.top, NULL);
        LineTo(hdc, InnerRect.right, InnerRect.top);
    }
    if(uFlags & BF_LEFT)
    {
        MoveToEx(hdc, InnerRect.left, InnerRect.top, NULL);
        LineTo(hdc, InnerRect.left, InnerRect.bottom);
    }
    SelectObject(hdc, RBOuterPen);
    if(uFlags & BF_BOTTOM)
    {
        MoveToEx(hdc, InnerRect.left, InnerRect.bottom-1, NULL);
        LineTo(hdc, InnerRect.right, InnerRect.bottom-1);
    }
    if(uFlags & BF_RIGHT)
    {
        MoveToEx(hdc, InnerRect.right-1, InnerRect.top, NULL);
        LineTo(hdc, InnerRect.right-1, InnerRect.bottom);
    }

    /* Draw the inner edge */
    SelectObject(hdc, LTInnerPen);
    if(uFlags & BF_TOP)
    {
        MoveToEx(hdc, InnerRect.left+LTpenplus, InnerRect.top+1, NULL);
        LineTo(hdc, InnerRect.right-RTpenplus, InnerRect.top+1);
    }
    if(uFlags & BF_LEFT)
    {
        MoveToEx(hdc, InnerRect.left+1, InnerRect.top+LTpenplus, NULL);
        LineTo(hdc, InnerRect.left+1, InnerRect.bottom-LBpenplus);
    }
    SelectObject(hdc, RBInnerPen);
    if(uFlags & BF_BOTTOM)
    {
        MoveToEx(hdc, InnerRect.left+LBpenplus, InnerRect.bottom-2, NULL);
        LineTo(hdc, InnerRect.right-RBpenplus, InnerRect.bottom-2);
    }
    if(uFlags & BF_RIGHT)
    {
        MoveToEx(hdc, InnerRect.right-2, InnerRect.top+RTpenplus, NULL);
        LineTo(hdc, InnerRect.right-2, InnerRect.bottom-RBpenplus);
    }

    if( ((uFlags & BF_MIDDLE) && retval) || (uFlags & BF_ADJUST) )
    {
        int add = (LTRBInnerMono[uType & (BDR_INNER|BDR_OUTER)] != -1 ? 1 : 0)
                + (LTRBOuterMono[uType & (BDR_INNER|BDR_OUTER)] != -1 ? 1 : 0);

        if(uFlags & BF_LEFT)   InnerRect.left   += add;
        if(uFlags & BF_RIGHT)  InnerRect.right  -= add;
        if(uFlags & BF_TOP)    InnerRect.top    += add;
        if(uFlags & BF_BOTTOM) InnerRect.bottom -= add;

	if(uFlags & BF_ADJUST)
	    *rc = InnerRect;
    }

    /* Cleanup */
    SelectObject(hdc, SavePen);
    MoveToEx(hdc, SavePoint.x, SavePoint.y, NULL);
    return retval;
}

/* Ported from WINE20020904 */
/* Utility to create a square rectangle and returning the width */
static int UITOOLS_MakeSquareRect(LPRECT src, LPRECT dst)
{
    int Width  = src->right - src->left;
    int Height = src->bottom - src->top;
    int SmallDiam = Width > Height ? Height : Width;

    *dst = *src;

    /* Make it a square box */
    if(Width < Height)      /* SmallDiam == Width */
    {
        dst->top += (Height-Width)/2;
        dst->bottom = dst->top + SmallDiam;
    }
    else if(Width > Height) /* SmallDiam == Height */
    {
        dst->left += (Width-Height)/2;
        dst->right = dst->left + SmallDiam;
    }

   return SmallDiam;
}

/* Ported from WINE20020904 */
static void UITOOLS_DrawCheckedRect( HDC dc, LPRECT rect )
{
    if(GetSysColor(COLOR_BTNHIGHLIGHT) == RGB(255, 255, 255))
    {
      HBITMAP hbm = CreateBitmap(8, 8, 1, 1, wPattern_AA55);
      HBRUSH hbsave;
      HBRUSH hb = CreatePatternBrush(hbm);
      COLORREF bg;

      FillRect(dc, rect, GetSysColorBrush(COLOR_BTNFACE));
      bg = SetBkColor(dc, RGB(255, 255, 255));
      hbsave = (HBRUSH)SelectObject(dc, hb);
      PatBlt(dc, rect->left, rect->top, rect->right-rect->left, rect->bottom-rect->top, 0x00FA0089);
      SelectObject(dc, hbsave);
      SetBkColor(dc, bg);
      DeleteObject(hb);
      DeleteObject(hbm);
    }
    else
    {
        FillRect(dc, rect, GetSysColorBrush(COLOR_BTNHIGHLIGHT));
    }
}

/* Ported from WINE20020904 */
/* Draw a push button coming from DrawFrameControl()
 *
 * Does a pretty good job in emulating MS behavior. Some quirks are
 * however there because MS uses a TrueType font (Marlett) to draw
 * the buttons.
 */
static BOOL UITOOLS95_DFC_ButtonPush(HDC dc, LPRECT r, UINT uFlags)
{
    UINT edge;
    RECT myr = *r;

    if(uFlags & (DFCS_PUSHED | DFCS_CHECKED | DFCS_FLAT))
        edge = EDGE_SUNKEN;
    else
        edge = EDGE_RAISED;

    if(uFlags & DFCS_CHECKED)
    {
        if(uFlags & DFCS_MONO)
            IntDrawRectEdge(dc, &myr, edge, BF_MONO|BF_RECT|BF_ADJUST);
        else
            IntDrawRectEdge(dc, &myr, edge, (uFlags&DFCS_FLAT)|BF_RECT|BF_SOFT|BF_ADJUST);

        UITOOLS_DrawCheckedRect( dc, &myr );
    }
    else
    {
        if(uFlags & DFCS_MONO)
        {
            IntDrawRectEdge(dc, &myr, edge, BF_MONO|BF_RECT|BF_ADJUST);
            FillRect(dc, &myr, GetSysColorBrush(COLOR_BTNFACE));
        }
        else
        {
            IntDrawRectEdge(dc, r, edge, (uFlags&DFCS_FLAT) | BF_MIDDLE | BF_RECT | BF_SOFT);
        }
    }

    /* Adjust rectangle if asked */
    if(uFlags & DFCS_ADJUSTRECT)
    {
        r->left   += 2;
        r->right  -= 2;
        r->top    += 2;
        r->bottom -= 2;
    }

    return TRUE;
}

/* Ported from WINE20020904 */
/* Draw a check/3state button coming from DrawFrameControl()
 *
 * Does a pretty good job in emulating MS behavior. Some quirks are
 * however there because MS uses a TrueType font (Marlett) to draw
 * the buttons.
 */
static BOOL UITOOLS95_DFC_ButtonCheck(HDC dc, LPRECT r, UINT uFlags)
{
    RECT myr, bar;
    UINT flags = BF_RECT | BF_ADJUST;
    UITOOLS_MakeSquareRect(r, &myr);

    if(uFlags & DFCS_FLAT) flags |= BF_FLAT;
    else if(uFlags & DFCS_MONO) flags |= BF_MONO;

    IntDrawRectEdge( dc, &myr, EDGE_SUNKEN, flags );

    if(uFlags & (DFCS_INACTIVE|DFCS_PUSHED))
        FillRect(dc, &myr, GetSysColorBrush(COLOR_BTNFACE));
    else if( (uFlags & DFCS_BUTTON3STATE) && (uFlags & DFCS_CHECKED) )
        UITOOLS_DrawCheckedRect( dc, &myr );
    else
    {
        FillRect(dc, &myr, GetSysColorBrush(COLOR_WINDOW));
    }

    if(uFlags & DFCS_CHECKED)
    {
        int i, k;
        i = (uFlags & DFCS_INACTIVE) || (uFlags & 0xff) == DFCS_BUTTON3STATE ?
		COLOR_BTNSHADOW : COLOR_WINDOWTEXT;

        /* draw 7 bars, with h=3w to form the check */
        bar.left = myr.left;
	bar.top = myr.top + 2;
        for (k = 0; k < 7; k++) {
            bar.left = bar.left + 1;
	    bar.top = (k < 3) ? bar.top + 1 : bar.top - 1;
	    bar.bottom = bar.top + 3;
   	    bar.right = bar.left + 1;
            FillRect(dc, &bar, GetSysColorBrush(i));
	}
    }
    return TRUE;
}

/* Ported from WINE20020904 */
/* Draw a radio/radioimage/radiomask button coming from DrawFrameControl()
 *
 * Does a pretty good job in emulating MS behavior. Some quirks are
 * however there because MS uses a TrueType font (Marlett) to draw
 * the buttons.
 */
static BOOL UITOOLS95_DFC_ButtonRadio(HDC dc, LPRECT r, UINT uFlags)
{
    RECT myr;
    int i;
    int SmallDiam = UITOOLS_MakeSquareRect(r, &myr);
    int BorderShrink = SmallDiam / 16;
    HPEN hpsave;
    HBRUSH hbsave;
    int xc, yc;

    if(BorderShrink < 1) BorderShrink = 1;

    if((uFlags & 0xff) == DFCS_BUTTONRADIOIMAGE)
    {
        FillRect(dc, r, (HBRUSH)GetStockObject(BLACK_BRUSH));
    }

    xc = myr.left + SmallDiam - SmallDiam/2;
    yc = myr.top  + SmallDiam - SmallDiam/2;

    /* Define bounding box */
    i = 14*SmallDiam/16;
    myr.left   = xc - i+i/2;
    myr.right  = xc + i/2;
    myr.top    = yc - i+i/2;
    myr.bottom = yc + i/2;

    if((uFlags & 0xff) == DFCS_BUTTONRADIOMASK)
    {
        hbsave = (HBRUSH)SelectObject(dc, GetStockObject(BLACK_BRUSH));
        Ellipse(dc, myr.left, myr.top, myr.right, myr.bottom);
        SelectObject(dc, hbsave);
    }
    else
    {
        if(uFlags & (DFCS_FLAT|DFCS_MONO))
        {
            hpsave = (HPEN)SelectObject(dc, GetSysColorPen(COLOR_WINDOWFRAME));
            hbsave = (HBRUSH)SelectObject(dc, GetSysColorBrush(COLOR_WINDOWFRAME));
            Ellipse(dc, myr.left, myr.top, myr.right, myr.bottom);
            SelectObject(dc, hbsave);
            SelectObject(dc, hpsave);
        }
        else
        {
            hpsave = (HPEN)SelectObject(dc, GetSysColorPen(COLOR_BTNHIGHLIGHT));
            hbsave = (HBRUSH)SelectObject(dc, GetSysColorBrush(COLOR_BTNHIGHLIGHT));
            Pie(dc, myr.left, myr.top, myr.right+1, myr.bottom+1, myr.left-1, myr.bottom, myr.right+1, myr.top);

            SelectObject(dc, GetSysColorPen(COLOR_BTNSHADOW));
            SelectObject(dc, GetSysColorBrush(COLOR_BTNSHADOW));
            Pie(dc, myr.left, myr.top, myr.right+1, myr.bottom+1, myr.right+1, myr.top, myr.left-1, myr.bottom);

            myr.left   += BorderShrink;
            myr.right  -= BorderShrink;
            myr.top    += BorderShrink;
            myr.bottom -= BorderShrink;

            SelectObject(dc, GetSysColorPen(COLOR_3DLIGHT));
            SelectObject(dc, GetSysColorBrush(COLOR_3DLIGHT));
            Pie(dc, myr.left, myr.top, myr.right+1, myr.bottom+1, myr.left-1, myr.bottom, myr.right+1, myr.top);

            SelectObject(dc, GetSysColorPen(COLOR_3DDKSHADOW));
            SelectObject(dc, GetSysColorBrush(COLOR_3DDKSHADOW));
            Pie(dc, myr.left, myr.top, myr.right+1, myr.bottom+1, myr.right+1, myr.top, myr.left-1, myr.bottom);
            SelectObject(dc, hbsave);
            SelectObject(dc, hpsave);
        }

        i = 10*SmallDiam/16;
        myr.left   = xc - i+i/2;
        myr.right  = xc + i/2;
        myr.top    = yc - i+i/2;
        myr.bottom = yc + i/2;
        i= !(uFlags & (DFCS_INACTIVE|DFCS_PUSHED)) ? COLOR_WINDOW : COLOR_BTNFACE;
        hpsave = (HPEN)SelectObject(dc, GetSysColorPen(i));
        hbsave = (HBRUSH)SelectObject(dc, GetSysColorBrush(i));
        Ellipse(dc, myr.left, myr.top, myr.right, myr.bottom);
        SelectObject(dc, hbsave);
        SelectObject(dc, hpsave);
    }

    if(uFlags & DFCS_CHECKED)
    {
        i = 6*SmallDiam/16;
        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;

        i = uFlags & DFCS_INACTIVE ? COLOR_BTNSHADOW : COLOR_WINDOWTEXT;
        hbsave = (HBRUSH)SelectObject(dc, GetSysColorBrush(i));
        hpsave = (HPEN)SelectObject(dc, GetSysColorPen(i));
        Ellipse(dc, myr.left, myr.top, myr.right, myr.bottom);
        SelectObject(dc, hpsave);
        SelectObject(dc, hbsave);
    }

    /* FIXME: M$ has a Polygon in the center at relative points: */
    /* 0.476, 0.476 (times SmallDiam, SmallDiam) */
    /* 0.476, 0.525 */
    /* 0.500, 0.500 */
    /* 0.500, 0.499 */
    /* when the button is unchecked. The reason for it is unknown. The */
    /* color is COLOR_BTNHIGHLIGHT, although the Polygon gets painted at */
    /* least 3 times (it looks like a clip-region when you see it happen). */
    /* I do not really see a reason why this should be implemented. If you */
    /* have a good reason, let me know. Maybe this is a quirk in the Marlett */
    /* font. */

    return TRUE;
}

/* Ported from WINE20020904 */
static BOOL UITOOLS95_DrawFrameButton(HDC hdc, LPRECT rc, UINT uState)
{
    switch(uState & 0xff)
    {
    case DFCS_BUTTONPUSH:
        return UITOOLS95_DFC_ButtonPush(hdc, rc, uState);

    case DFCS_BUTTONCHECK:
    case DFCS_BUTTON3STATE:
        return UITOOLS95_DFC_ButtonCheck(hdc, rc, uState);

    case DFCS_BUTTONRADIOIMAGE:
    case DFCS_BUTTONRADIOMASK:
    case DFCS_BUTTONRADIO:
        return UITOOLS95_DFC_ButtonRadio(hdc, rc, uState);

/*
    default:
        DbgPrint("Invalid button state=0x%04x\n", uState);
*/
    }

    return FALSE;
}

/* Ported from WINE20020904 */
/* Draw caption buttons (win95), coming from DrawFrameControl() */
static BOOL UITOOLS95_DrawFrameCaption(HDC dc, LPRECT r, UINT uFlags)
{
    POINT Line1[10];
    POINT Line2[10];
    int Line1N;
    int Line2N;
    RECT myr;
    int SmallDiam = UITOOLS_MakeSquareRect(r, &myr)-2;
    int i;
    HBRUSH hbsave;
    HPEN hpsave;
    HFONT hfsave, hf;
    int colorIdx = uFlags & DFCS_INACTIVE ? COLOR_BTNSHADOW : COLOR_BTNTEXT;
    int xc = (myr.left+myr.right)/2;
    int yc = (myr.top+myr.bottom)/2;
    int edge, move;
    char str[2] = "?";
    UINT alignsave;
    int bksave;
    COLORREF clrsave;
    SIZE size;

  if(uFlags & DFCS_PUSHED)
      IntDrawRectEdge(dc,r,EDGE_SUNKEN, BF_RECT | BF_MIDDLE | BF_SOFT);
    else
      IntDrawRectEdge(dc,r,BDR_RAISEDINNER | BDR_RAISEDOUTER, BF_RECT |
                               BF_SOFT | BF_MIDDLE);

    switch(uFlags & 0xff)
    {
    case DFCS_CAPTIONCLOSE:
    {
        /* The "X" is made by drawing a series of lines.
         * The number of lines drawn depends on the size
         * of the bounding rect.  e.g. For a 6x5 inside rect,
         * two lines are drawn from top-left to bottom-right,
         * and two lines from top-right to bottom-left.
         *
         * 0 1 2 3 4 5       0 1 2 3 4 5
         * 1 * *                     * *
         * 2   * *                 * *
         * 3     * *             * *
         * 4       * *         * *
         *
         * Drawing one line for every 6 pixels in width
         * seems to provide the best proportions.
         */

        POINT start, oldPos;
        INT width = myr.right - (++myr.left) - 5;
        INT height = (--myr.bottom) - myr.top - 6;
        INT numLines = (width / 6) + 1;

        hpsave = (HPEN)SelectObject(dc, GetSysColorPen(colorIdx));

        start.x = myr.left + 2;
        start.y = myr.top + 2;

        if (width < 6)
            height = width;
        else
            start.y++;

        if (uFlags & DFCS_PUSHED)
        {
            start.x++;
			start.y++;
        }

        /* now use the width of each line */
        width -= numLines - 1;

        for (i = 0; i < numLines; i++)
        {
            MoveToEx(dc, start.x + i, start.y, &oldPos);
            LineTo(dc, start.x + i + width, start.y + height);

            MoveToEx(dc, start.x + i, start.y + height - 1, &oldPos);
            LineTo(dc, start.x + i + width, start.y - 1);
        }