Tk Source Code

    Tcl_Obj *bgimgPtr;		/* Value of -backgroundimage option: specifies
				 * image to display on window's background, or
				 * NULL if none. */
    Tk_Image bgimg;		/* Derived from bgimgPtr by calling
				 * Tk_GetImage, or NULL if bgimgPtr is
				 * NULL. */
    int tile;			/* Whether to tile the bgimg. */
#ifndef TK_NO_DOUBLE_BUFFERING
    GC copyGC;			/* GC for copying when double-buffering. */
#endif /* TK_NO_DOUBLE_BUFFERING */
} Frame;

/*
 * A data structure of the following type is kept for each labelframe widget
 * managed by this file:
 */

			    int objc, Tcl_Obj *const objv[]);
static int		CreateFrame(ClientData clientData, Tcl_Interp *interp,
			    int objc, Tcl_Obj *const argv[],
			    enum FrameType type, const char *appName);
static void		DestroyFrame(void *memPtr);
static void		DestroyFramePartly(Frame *framePtr);
static void		DisplayFrame(ClientData clientData);
static void		DrawFrameBackground(Tk_Window tkwin, Pixmap pixmap,
			    int highlightWidth, int borderWidth,
			    Tk_Image bgimg, int bgtile);
static void		FrameBgImageProc(ClientData clientData,
			    int x, int y, int width, int height,
			    int imgWidth, int imgHeight);
static void		FrameCmdDeletedProc(ClientData clientData);
static void		FrameEventProc(ClientData clientData,

    if (framePtr->type == TYPE_LABELFRAME) {
	Tk_FreeTextLayout(labelframePtr->textLayout);
	if (labelframePtr->textGC != NULL) {
	    Tk_FreeGC(framePtr->display, labelframePtr->textGC);
	}
    }
#ifndef TK_NO_DOUBLE_BUFFERING
    if (framePtr->copyGC != NULL) {
	Tk_FreeGC(framePtr->display, framePtr->copyGC);
    }
#endif /* TK_NO_DOUBLE_BUFFERING */
    if (framePtr->colormap != None) {
	Tk_FreeColormap(framePtr->display, framePtr->colormap);
    }
    if (framePtr->bgimg) {
	Tk_FreeImage(framePtr->bgimg);
    }
    ckfree(framePtr);

    anyTextLabel = (framePtr->type == TYPE_LABELFRAME) &&
	    (labelframePtr->textPtr != NULL) &&
	    (labelframePtr->labelWin == NULL);
    anyWindowLabel = (framePtr->type == TYPE_LABELFRAME) &&
	    (labelframePtr->labelWin != NULL);

#ifndef TK_NO_DOUBLE_BUFFERING
    gcValues.graphics_exposures = False;
    gc = Tk_GetGC(tkwin, GCGraphicsExposures, &gcValues);
    if (framePtr->copyGC != NULL) {
	Tk_FreeGC(framePtr->display, framePtr->copyGC);
    }
    framePtr->copyGC = gc;
#endif /* TK_NO_DOUBLE_BUFFERING */

    if (framePtr->type == TYPE_LABELFRAME) {
	/*
	 * The textGC is needed even in the labelWin case, so it's always
	 * created for a labelframe.
	 */

	gcValues.font = Tk_FontId(labelframePtr->tkfont);

     * If -background is set to "", no interior is drawn.
     */

    if (framePtr->border == NULL) {
	return;
    }

#ifndef TK_NO_DOUBLE_BUFFERING
    /*
     * In order to avoid screen flashes, this function redraws the frame into
     * off-screen memory, then copies it back on-screen in a single operation.
     * This means there's no point in time where the on-screen image has been
     * cleared.
     */

    pixmap = Tk_GetPixmap(framePtr->display, Tk_WindowId(tkwin),
	    Tk_Width(tkwin), Tk_Height(tkwin), Tk_Depth(tkwin));
#else
    pixmap = Tk_WindowId(tkwin);
#endif /* TK_NO_DOUBLE_BUFFERING */

    if (framePtr->type != TYPE_LABELFRAME) {
	/*
	 * Pass to platform specific draw function. In general, it just draws
	 * a simple rectangle, but it may "theme" the background.
	 */

    noLabel:
	TkpDrawFrameEx(tkwin, pixmap, framePtr->border, hlWidth,
		framePtr->borderWidth, framePtr->relief);
	if (framePtr->bgimg) {
	    DrawFrameBackground(tkwin, pixmap, hlWidth, framePtr->borderWidth,
		    framePtr->bgimg, framePtr->tile);
	}
    } else {
	Labelframe *labelframePtr = (Labelframe *) framePtr;

	if ((labelframePtr->textPtr == NULL) &&
		(labelframePtr->labelWin == NULL)) {
	    goto noLabel;
	}















	/*
	 * Clear the pixmap.
	 */

	Tk_Fill3DRectangle(tkwin, pixmap, framePtr->border, 0, 0,
		Tk_Width(tkwin), Tk_Height(tkwin), 0, TK_RELIEF_FLAT);

	    } else {
		Tk_MaintainGeometry(labelframePtr->labelWin, framePtr->tkwin,
			labelframePtr->labelBox.x, labelframePtr->labelBox.y,
			labelframePtr->labelBox.width,
			labelframePtr->labelBox.height);
	    }
	}
    }

#ifndef TK_NO_DOUBLE_BUFFERING
    /*
     * Everything's been redisplayed; now copy the pixmap onto the screen and
     * free up the pixmap.
     */

    XCopyArea(framePtr->display, pixmap, Tk_WindowId(tkwin), framePtr->copyGC,

	    0, 0, (unsigned) Tk_Width(tkwin), (unsigned) Tk_Height(tkwin),

	    0, 0);
    Tk_FreePixmap(framePtr->display, pixmap);
#endif /* TK_NO_DOUBLE_BUFFERING */
}

/*
 *----------------------------------------------------------------------
 *
 * TkpDrawFrame --
 *
 *	This procedure draws the rectangular frame area.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Draws inside the tkwin area.
 *
 *----------------------------------------------------------------------
 */

void
TkpDrawFrame(
    Tk_Window tkwin,
    Tk_3DBorder border,
    int highlightWidth,
    int borderWidth,
    int relief)
{
    /*
     * Legacy shim to allow for external callers. Internal ones use
     * non-exposed TkpDrawFrameEx directly so they can use double-buffering.
     */

    TkpDrawFrameEx(tkwin, Tk_WindowId(tkwin), border,
	    highlightWidth, borderWidth, relief);
}

/*
 *--------------------------------------------------------------
 *
 * FrameEventProc --
 *

 *
 *----------------------------------------------------------------------
 */

static void
DrawFrameBackground(
    Tk_Window tkwin,
    Pixmap pixmap,
    int highlightWidth,
    int borderWidth,
    Tk_Image bgimg,
    int bgtile)
{
    int width, height;			/* Area to paint on. */
    int imageWidth, imageHeight;	/* Dimensions of image. */

		w = (width + bw) - x;
	    }
	    for (y = bw; y < height + bw; y += imageHeight) {
		int h = imageHeight;
		if (y - bw + imageHeight > height) {
		    h = (height + bw) - y;
		}
		Tk_RedrawImage(bgimg, 0, 0, w, h, pixmap, x, y);
	    }
	}
    } else {
	/*
	 * Draw the image centred in the widget (inside the border).
	 */

	    yOff = (Tk_Height(tkwin) - imageHeight) / 2;
	    h = imageHeight;
	} else {
	    y = (imageHeight - height) / 2;
	    yOff = bw;
	    h = height;
	}
	Tk_RedrawImage(bgimg, x, y, w, h, pixmap, xOff, yOff);
    }
}

/*
 * Local Variables:
 * mode: c
 * c-basic-offset: 4
 * fill-column: 78
 * End:
 */

			    int *lengthPtr);
MODULE_SCOPE void	TkUnderlineCharsInContext(Display *display,
			    Drawable drawable, GC gc, Tk_Font tkfont,
			    const char *string, int numBytes, int x, int y,
			    int firstByte, int lastByte);
MODULE_SCOPE void	TkpGetFontAttrsForChar(Tk_Window tkwin, Tk_Font tkfont,
			    int c, struct TkFontAttributes *faPtr);
MODULE_SCOPE void	TkpDrawFrameEx(Tk_Window tkwin, Drawable drawable,
			    Tk_3DBorder border, int highlightWidth,
			    int borderWidth, int relief);
MODULE_SCOPE Tcl_Obj *	TkNewWindowObj(Tk_Window tkwin);
MODULE_SCOPE void	TkpShowBusyWindow(TkBusy busy);
MODULE_SCOPE void	TkpHideBusyWindow(TkBusy busy);
MODULE_SCOPE void	TkpMakeTransparentWindowExist(Tk_Window tkwin,
			    Window parent);
MODULE_SCOPE void	TkpCreateBusy(Tk_FakeWin *winPtr, Tk_Window tkRef,
			    Window *parentPtr, Tk_Window tkParent,

	}
    }
}

/*
 *----------------------------------------------------------------------
 *
 * TkpDrawFrameEx --
 *
 *	This procedure draws the rectangular frame area. If the user has
 *	requested themeing, it draws with the background theme.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Draws inside the tkwin area.
 *
 *----------------------------------------------------------------------
 */

void
TkpDrawFrameEx(
    Tk_Window tkwin,
    Drawable drawable,
    Tk_3DBorder border,
    int highlightWidth,
    int borderWidth,
    int relief)
{
    if (useThemedToplevel && Tk_IsTopLevel(tkwin)) {
	static Tk_3DBorder themedBorder = NULL;

	if (!themedBorder) {
	    themedBorder = Tk_Get3DBorder(NULL, tkwin,
		    "systemWindowHeaderBackground");
	}
	if (themedBorder) {
	    border = themedBorder;
	}
    }

    Tk_Fill3DRectangle(tkwin, drawable, border, highlightWidth,

	    highlightWidth, Tk_Width(tkwin) - 2 * highlightWidth,
	    Tk_Height(tkwin) - 2 * highlightWidth, borderWidth, relief);

}

/*
 * Local Variables:
 * mode: objc
 * c-basic-offset: 4
 * fill-column: 79
 * coding: utf-8
 * End:
 */

{
    TkDrawInsetFocusHighlight(tkwin, fgGC, highlightWidth, drawable, 0);
}

/*
 *----------------------------------------------------------------------
 *
 * TkpDrawFrameEx --
 *
 *	This function draws the rectangular frame area.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Draws inside the tkwin area.
 *
 *----------------------------------------------------------------------
 */

void
TkpDrawFrameEx(
    Tk_Window tkwin,
    Drawable drawable,
    Tk_3DBorder border,
    int highlightWidth,
    int borderWidth,
    int relief)
{
    Tk_Fill3DRectangle(tkwin, drawable, border, highlightWidth,
	    highlightWidth, Tk_Width(tkwin) - 2*highlightWidth,
	    Tk_Height(tkwin) - 2*highlightWidth, borderWidth, relief);
}

/*
 * Local Variables:
 * mode: c

{
    TkDrawInsetFocusHighlight(tkwin, fgGC, highlightWidth, drawable, 0);
}

/*
 *----------------------------------------------------------------------
 *
 * TkpDrawFrameEx --
 *
 *	This function draws the rectangular frame area.
 *
 * Results:
 *	None.
 *
 * Side effects:
 *	Draws inside the tkwin area.
 *
 *----------------------------------------------------------------------
 */

void
TkpDrawFrameEx(
    Tk_Window tkwin,
    Drawable drawable,
    Tk_3DBorder border,
    int highlightWidth,
    int borderWidth,
    int relief)
{
    Tk_Fill3DRectangle(tkwin, drawable, border, highlightWidth,
	    highlightWidth, Tk_Width(tkwin) - 2 * highlightWidth,
	    Tk_Height(tkwin) - 2 * highlightWidth, borderWidth, relief);
}

/*
 * Local Variables:
 * mode: c