Initial revision

1 files changed, 825 insertions, 0 deletions

diff --git a/mac/tkMacButton.c b/mac/tkMacButton.c
new file mode 100644
index 0000000..767baff
--- /dev/null
+++ b/mac/tkMacButton.c
@@ -0,0 +1,825 @@
+/* 
+ * tkMacButton.c --
+ *
+ *	This file implements the Macintosh specific portion of the
+ *	button widgets.
+ *
+ * Copyright (c) 1996-1997 by Sun Microsystems, Inc.
+ *
+ * See the file "license.terms" for information on usage and redistribution
+ * of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+ *
+ * SCCS: @(#) tkMacButton.c 1.18 97/11/20 18:27:21
+ */
+
+#include "tkButton.h"
+#include "tkMacInt.h"
+#include <Controls.h>
+#include <LowMem.h>
+
+/*
+ * Some defines used to control what type of control is drawn.
+ */
+
+#define DRAW_LABEL	0		/* Labels are treated genericly. */
+#define DRAW_CONTROL	1		/* Draw using the Native control. */
+#define DRAW_CUSTOM	2		/* Make our own button drawing. */
+
+/*
+ * The following structures are used to draw our controls.  Rather than
+ * having many Mac controls we just use one control of each type and
+ * reuse them for all Tk widgets.  When the windowRef variable is NULL
+ * it means none of the data structures have been allocated.
+ */
+
+static WindowRef windowRef = NULL;
+static CWindowRecord windowRecord;
+static ControlRef buttonHandle;
+static ControlRef checkHandle;
+static ControlRef radioHandle;
+static CCTabHandle buttonTabHandle;
+static CCTabHandle checkTabHandle;
+static CCTabHandle radioTabHandle;
+static PixMapHandle oldPixPtr;
+
+/*
+ * Forward declarations for procedures defined later in this file:
+ */
+
+static int		UpdateControlColors _ANSI_ARGS_((TkButton *butPtr,
+			    ControlRef controlHandle, CCTabHandle ccTabHandle,
+			    RGBColor *saveColorPtr));
+static void		DrawBufferedControl _ANSI_ARGS_((TkButton *butPtr,
+			    GWorldPtr destPort));
+static void		ChangeBackgroundWindowColor _ANSI_ARGS_((
+			    WindowRef macintoshWindow, RGBColor rgbColor,
+			    RGBColor *oldColor));
+static void		ButtonExitProc _ANSI_ARGS_((ClientData clientData));
+
+/*
+ * The class procedure table for the button widgets.
+ */
+
+TkClassProcs tkpButtonProcs = { 
+    NULL,			/* createProc. */
+    TkButtonWorldChanged,	/* geometryProc. */
+    NULL			/* modalProc. */
+};
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkpCreateButton --
+ *
+ *	Allocate a new TkButton structure.
+ *
+ * Results:
+ *	Returns a newly allocated TkButton structure.
+ *
+ * Side effects:
+ *	Registers an event handler for the widget.
+ *
+ *----------------------------------------------------------------------
+ */
+
+TkButton *
+TkpCreateButton(
+    Tk_Window tkwin)
+{
+    return (TkButton *) ckalloc(sizeof(TkButton));
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkpDisplayButton --
+ *
+ *	This procedure is invoked to display a button widget.  It is
+ *	normally invoked as an idle handler.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Commands are output to X to display the button in its
+ *	current mode.  The REDRAW_PENDING flag is cleared.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkpDisplayButton(
+    ClientData clientData)	/* Information about widget. */
+{
+    TkButton *butPtr = (TkButton *) clientData;
+    Pixmap pixmap;
+    GC gc;
+    Tk_3DBorder border;
+    int x = 0;			/* Initialization only needed to stop
+				 * compiler warning. */
+    int y, relief;
+    register Tk_Window tkwin = butPtr->tkwin;
+    int width, height;
+    int offset;			/* 0 means this is a normal widget.  1 means
+				 * it is an image button, so we offset the
+				 * image to make the button appear to move
+				 * up and down as the relief changes. */
+    CGrafPtr saveWorld;
+    GDHandle saveDevice;
+    GWorldPtr destPort;
+    int drawType, borderWidth;
+    
+    GetGWorld(&saveWorld, &saveDevice);
+
+    butPtr->flags &= ~REDRAW_PENDING;
+    if ((butPtr->tkwin == NULL) || !Tk_IsMapped(tkwin)) {
+	return;
+    }
+
+    border = butPtr->normalBorder;
+    if ((butPtr->state == tkDisabledUid) && (butPtr->disabledFg != NULL)) {
+	gc = butPtr->disabledGC;
+    } else if ((butPtr->type == TYPE_BUTTON) && (butPtr->state == tkActiveUid)) {
+	gc = butPtr->activeTextGC;
+	border = butPtr->activeBorder;
+    } else {
+	gc = butPtr->normalTextGC;
+    }
+    if ((butPtr->flags & SELECTED) && (butPtr->state != tkActiveUid)
+	    && (butPtr->selectBorder != NULL) && !butPtr->indicatorOn) {
+	border = butPtr->selectBorder;
+    }
+
+    /*
+     * Override the relief specified for the button if this is a
+     * checkbutton or radiobutton and there's no indicator.
+     */
+
+    relief = butPtr->relief;
+    if ((butPtr->type >= TYPE_CHECK_BUTTON) && !butPtr->indicatorOn) {
+	relief = (butPtr->flags & SELECTED) ? TK_RELIEF_SUNKEN
+		: TK_RELIEF_RAISED;
+    }
+
+    offset = ((butPtr->type == TYPE_BUTTON) && 
+	((butPtr->image != NULL) || (butPtr->bitmap != None)));
+
+    /*
+     * In order to avoid screen flashes, this procedure redraws
+     * the button in a pixmap, then copies the pixmap to the
+     * screen in a single operation.  This means that there's no
+     * point in time where the on-sreen image has been cleared.
+     */
+
+    pixmap = Tk_GetPixmap(butPtr->display, Tk_WindowId(tkwin),
+	    Tk_Width(tkwin), Tk_Height(tkwin), Tk_Depth(tkwin));
+    Tk_Fill3DRectangle(tkwin, pixmap, butPtr->normalBorder, 0, 0,
+	    Tk_Width(tkwin), Tk_Height(tkwin), 0, TK_RELIEF_FLAT);
+
+   
+    if (butPtr->type == TYPE_LABEL) {
+	drawType = DRAW_LABEL;
+    } else if (butPtr->type == TYPE_BUTTON) {
+	if ((butPtr->image == None) && (butPtr->bitmap == None)) {
+	    drawType = DRAW_CONTROL;
+	} else {
+	    drawType = DRAW_CUSTOM;
+	}
+    } else {
+	if (butPtr->indicatorOn) {
+	    drawType = DRAW_CONTROL;
+	} else {
+	    drawType = DRAW_CUSTOM;
+	}
+    }
+
+    /*
+     * Draw the native portion of the buttons.  Start by creating the control
+     * if it doesn't already exist.  Then configure the Macintosh control from
+     * the Tk info.  Finally, we call Draw1Control to draw to the screen.
+     */
+
+    if (drawType == DRAW_CONTROL) {
+	borderWidth = 0;
+	
+	/*
+	 * This part uses Macintosh rather than Tk calls to draw
+	 * to the screen.  Make sure the ports etc. are set correctly.
+	 */
+	
+	destPort = TkMacGetDrawablePort(pixmap);
+	SetGWorld(destPort, NULL);
+	DrawBufferedControl(butPtr, destPort);
+    }
+
+    if ((drawType == DRAW_CUSTOM) || (drawType == DRAW_LABEL)) {
+	borderWidth = butPtr->borderWidth;
+    }
+
+    /*
+     * Display image or bitmap or text for button.
+     */
+
+    if (butPtr->image != None) {
+	Tk_SizeOfImage(butPtr->image, &width, &height);
+
+	imageOrBitmap:
+	TkComputeAnchor(butPtr->anchor, tkwin, 0, 0,
+		butPtr->indicatorSpace + width, height, &x, &y);
+	x += butPtr->indicatorSpace;
+
+	x += offset;
+	y += offset;
+	if (relief == TK_RELIEF_RAISED) {
+	    x -= offset;
+	    y -= offset;
+	} else if (relief == TK_RELIEF_SUNKEN) {
+	    x += offset;
+	    y += offset;
+	}
+	if (butPtr->image != NULL) {
+	    if ((butPtr->selectImage != NULL) && (butPtr->flags & SELECTED)) {
+		Tk_RedrawImage(butPtr->selectImage, 0, 0, width, height,
+			pixmap, x, y);
+	    } else {
+		Tk_RedrawImage(butPtr->image, 0, 0, width, height, pixmap,
+			x, y);
+	    }
+	} else {
+	    XSetClipOrigin(butPtr->display, gc, x, y);
+	    XCopyPlane(butPtr->display, butPtr->bitmap, pixmap, gc, 0, 0,
+		    (unsigned int) width, (unsigned int) height, x, y, 1);
+	    XSetClipOrigin(butPtr->display, gc, 0, 0);
+	}
+	y += height/2;
+    } else if (butPtr->bitmap != None) {
+	Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, &width, &height);
+	goto imageOrBitmap;
+    } else {
+	TkComputeAnchor(butPtr->anchor, tkwin, butPtr->padX, butPtr->padY,
+		butPtr->indicatorSpace + butPtr->textWidth, butPtr->textHeight,
+		&x, &y);
+
+	x += butPtr->indicatorSpace;
+
+	Tk_DrawTextLayout(butPtr->display, pixmap, gc, butPtr->textLayout,
+		x, y, 0, -1);
+	y += butPtr->textHeight/2;
+    }
+
+    /*
+     * If the button is disabled with a stipple rather than a special
+     * foreground color, generate the stippled effect.  If the widget
+     * is selected and we use a different background color when selected,
+     * must temporarily modify the GC.
+     */
+
+    if ((butPtr->state == tkDisabledUid)
+	    && ((butPtr->disabledFg == NULL) || (butPtr->image != NULL))) {
+	if ((butPtr->flags & SELECTED) && !butPtr->indicatorOn
+		&& (butPtr->selectBorder != NULL)) {
+	    XSetForeground(butPtr->display, butPtr->disabledGC,
+		    Tk_3DBorderColor(butPtr->selectBorder)->pixel);
+	}
+	XFillRectangle(butPtr->display, pixmap, butPtr->disabledGC,
+		butPtr->inset, butPtr->inset,
+		(unsigned) (Tk_Width(tkwin) - 2*butPtr->inset),
+		(unsigned) (Tk_Height(tkwin) - 2*butPtr->inset));
+	if ((butPtr->flags & SELECTED) && !butPtr->indicatorOn
+		&& (butPtr->selectBorder != NULL)) {
+	    XSetForeground(butPtr->display, butPtr->disabledGC,
+		    Tk_3DBorderColor(butPtr->normalBorder)->pixel);
+	}
+    }
+
+    /*
+     * Draw the border and traversal highlight last.  This way, if the
+     * button's contents overflow they'll be covered up by the border.
+     */
+
+    if (relief != TK_RELIEF_FLAT) {
+	int inset = butPtr->highlightWidth;
+	Tk_Draw3DRectangle(tkwin, pixmap, border, inset, inset,
+		Tk_Width(tkwin) - 2*inset, Tk_Height(tkwin) - 2*inset,
+		butPtr->borderWidth, relief);
+    }
+
+    /*
+     * Copy the information from the off-screen pixmap onto the screen,
+     * then delete the pixmap.
+     */
+
+    XCopyArea(butPtr->display, pixmap, Tk_WindowId(tkwin),
+	    butPtr->copyGC, 0, 0, (unsigned) Tk_Width(tkwin),
+	    (unsigned) Tk_Height(tkwin), 0, 0);
+    Tk_FreePixmap(butPtr->display, pixmap);
+
+    SetGWorld(saveWorld, saveDevice);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkpComputeButtonGeometry --
+ *
+ *	After changes in a button's text or bitmap, this procedure
+ *	recomputes the button's geometry and passes this information
+ *	along to the geometry manager for the window.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The button's window may change size.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkpComputeButtonGeometry(
+    TkButton *butPtr)	/* Button whose geometry may have changed. */
+{
+    int width, height, avgWidth;
+    Tk_FontMetrics fm;
+
+    if (butPtr->highlightWidth < 0) {
+	butPtr->highlightWidth = 0;
+    }
+    if ((butPtr->type == TYPE_BUTTON) && (butPtr->image == None)
+	    && (butPtr->bitmap == None)) {
+	butPtr->inset = 0;
+    } else if ((butPtr->type != TYPE_LABEL) && butPtr->indicatorOn) {
+	butPtr->inset = 0;
+    } else {
+	butPtr->inset = butPtr->borderWidth;
+    }
+
+    /*
+     * The highlight width corresponds to the default ring on the Macintosh.
+     * As such, the highlight width is only added if the button is the default
+     * button.  The actual width of the default ring is one less than the
+     * highlight width as there is also one pixel of spacing.
+     */
+
+    if (butPtr->defaultState != tkDisabledUid) {
+	butPtr->inset += butPtr->highlightWidth;
+    }
+    butPtr->indicatorSpace = 0;
+    if (butPtr->image != NULL) {
+	Tk_SizeOfImage(butPtr->image, &width, &height);
+	imageOrBitmap:
+	if (butPtr->width > 0) {
+	    width = butPtr->width;
+	}
+	if (butPtr->height > 0) {
+	    height = butPtr->height;
+	}
+	if ((butPtr->type >= TYPE_CHECK_BUTTON) && butPtr->indicatorOn) {
+	    butPtr->indicatorSpace = height;
+	    if (butPtr->type == TYPE_CHECK_BUTTON) {
+		butPtr->indicatorDiameter = (65*height)/100;
+	    } else {
+		butPtr->indicatorDiameter = (75*height)/100;
+	    }
+	}
+    } else if (butPtr->bitmap != None) {
+	Tk_SizeOfBitmap(butPtr->display, butPtr->bitmap, &width, &height);
+	goto imageOrBitmap;
+    } else {
+	Tk_FreeTextLayout(butPtr->textLayout);
+	butPtr->textLayout = Tk_ComputeTextLayout(butPtr->tkfont,
+		butPtr->text, -1, butPtr->wrapLength, butPtr->justify, 0,
+		&butPtr->textWidth, &butPtr->textHeight);
+
+	width = butPtr->textWidth;
+	height = butPtr->textHeight;
+	avgWidth = Tk_TextWidth(butPtr->tkfont, "0", 1);
+	Tk_GetFontMetrics(butPtr->tkfont, &fm);
+
+	if (butPtr->width > 0) {
+	    width = butPtr->width * avgWidth;
+	}
+	if (butPtr->height > 0) {
+	    height = butPtr->height * fm.linespace;
+	}
+	if ((butPtr->type >= TYPE_CHECK_BUTTON) && butPtr->indicatorOn) {
+	    butPtr->indicatorDiameter = fm.linespace;
+	    if (butPtr->type == TYPE_CHECK_BUTTON) {
+		butPtr->indicatorDiameter = (80*butPtr->indicatorDiameter)/100;
+	    }
+	    butPtr->indicatorSpace = butPtr->indicatorDiameter + avgWidth;
+	}
+    }
+
+    /*
+     * When issuing the geometry request, add extra space for the indicator,
+     * if any, and for the border and padding, plus if this is an image two 
+     * extra pixels so the display can be offset by 1 pixel in either
+     * direction for the raised or lowered effect.
+     */
+
+    if ((butPtr->image == NULL) && (butPtr->bitmap == None)) {
+	width += 2*butPtr->padX;
+	height += 2*butPtr->padY;
+    }
+    if ((butPtr->type == TYPE_BUTTON) && 
+	((butPtr->image != NULL) || (butPtr->bitmap != None))) {
+	width += 2;
+	height += 2;
+    }
+    Tk_GeometryRequest(butPtr->tkwin, (int) (width + butPtr->indicatorSpace
+	    + 2*butPtr->inset), (int) (height + 2*butPtr->inset));
+    Tk_SetInternalBorder(butPtr->tkwin, butPtr->inset);
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * TkpDestroyButton --
+ *
+ *	Free data structures associated with the button control.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Restores the default control state.
+ *
+ *----------------------------------------------------------------------
+ */
+
+void
+TkpDestroyButton(
+    TkButton *butPtr)
+{
+    /* Do nothing. */
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * DrawBufferedControl --
+ *
+ *	This function uses a dummy Macintosh window to allow
+ *	drawing Mac controls to any GWorld (including off-screen
+ *	bitmaps).  In addition, this code may apply custom
+ *	colors passed in the TkButton.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Control is to the GWorld.  Static state created on
+ *	first invocation of this routine.
+ *
+ *--------------------------------------------------------------
+ */
+
+static void
+DrawBufferedControl(
+    TkButton *butPtr,		/* Tk button. */
+    GWorldPtr destPort)		/* Off screen GWorld. */
+{
+    ControlRef controlHandle;
+    CCTabHandle ccTabHandle;
+    int windowColorChanged = false;
+    RGBColor saveBackColor;
+
+    if (windowRef == NULL) {
+	Rect geometry = {0, 0, 10, 10};
+	CWindowPeek windowList;
+
+	/*
+	 * Create a dummy window that we can draw to.  We will
+	 * actually replace this windows bitmap with a the one
+	 * we want to draw to at a later time.  This window and
+	 * the data structures attached to it are only deallocated
+	 * on exit of the application.
+	 */
+	
+	windowRef = NewCWindow(NULL, &geometry, "\pempty", false, 
+	    zoomDocProc, (WindowRef) -1, true, 0);
+	if (windowRef == NULL) {
+	    panic("Can't allocate buffer window.");
+	}
+	
+	/*
+	 * Now add the three standard controls to hidden window.  We
+	 * only create one of each and reuse them for every widget in
+	 * Tk.
+	 */
+	
+	SetPort(windowRef);
+	buttonHandle = NewControl(windowRef, &geometry, "\p",
+		false, 1, 0, 1, pushButProc, (SInt32) 0);
+	checkHandle = NewControl(windowRef, &geometry, "\p",
+		false, 1, 0, 1, checkBoxProc, (SInt32) 0);
+	radioHandle = NewControl(windowRef, &geometry, "\p",
+		false, 1, 0, 1, radioButProc, (SInt32) 0);
+	((CWindowPeek) windowRef)->visible = true;
+
+	buttonTabHandle = (CCTabHandle) NewHandle(sizeof(CtlCTab));
+	checkTabHandle = (CCTabHandle) NewHandle(sizeof(CtlCTab));
+	radioTabHandle = (CCTabHandle) NewHandle(sizeof(CtlCTab));
+
+	/*
+	 * Remove our window from the window list.  This way our
+	 * applications and others will not be confused that this
+	 * window exists - but no one knows about it.
+	 */
+
+	windowList = (CWindowPeek) LMGetWindowList();
+	if (windowList == (CWindowPeek) windowRef) {
+	    LMSetWindowList((WindowRef) windowList->nextWindow);
+	} else {
+	    while ((windowList != NULL) 
+		    && (windowList->nextWindow != (CWindowPeek) windowRef)) {
+		windowList = windowList->nextWindow;
+	    }
+	    if (windowList != NULL) {
+		windowList->nextWindow = windowList->nextWindow->nextWindow;
+	    }
+	}
+	((CWindowPeek) windowRef)->nextWindow = NULL;
+
+	/* 
+	 * Create an exit handler to clean up this mess if we our
+	 * unloaded etc.  We need to remember the windows portPixMap
+	 * so it isn't leaked.
+	 *
+	 * TODO: The ButtonExitProc doesn't currently work and the
+	 * code it includes will crash the Mac on exit from Tk.
+	 
+	 oldPixPtr = ((CWindowPeek) windowRef)->port.portPixMap;
+	 Tcl_CreateExitHandler(ButtonExitProc, (ClientData) NULL);
+	 */
+    }
+    
+    /*
+     * Set up control in hidden window to match what we need
+     * to draw in the buffered window.
+     */
+
+    switch (butPtr->type) {
+	case TYPE_BUTTON:
+	    controlHandle = buttonHandle;
+	    ccTabHandle = buttonTabHandle;
+	    break;
+	case TYPE_RADIO_BUTTON:
+	    controlHandle = radioHandle;
+	    ccTabHandle = radioTabHandle;
+	    break;
+	case TYPE_CHECK_BUTTON:
+	    controlHandle = checkHandle;
+	    ccTabHandle = checkTabHandle;
+	    break;
+    }
+    (**controlHandle).contrlRect.left = butPtr->inset;
+    (**controlHandle).contrlRect.top = butPtr->inset;
+    (**controlHandle).contrlRect.right = Tk_Width(butPtr->tkwin) 
+	    - butPtr->inset;
+    (**controlHandle).contrlRect.bottom = Tk_Height(butPtr->tkwin) 
+	    - butPtr->inset;
+    if ((**controlHandle).contrlVis != 255) {
+	(**controlHandle).contrlVis = 255;
+    }
+    if (butPtr->flags & SELECTED) {
+	(**controlHandle).contrlValue = 1;
+    } else {
+	(**controlHandle).contrlValue = 0;
+    }
+    if (butPtr->state == tkActiveUid) {
+	switch (butPtr->type) {
+	    case TYPE_BUTTON:
+		(**controlHandle).contrlHilite = kControlButtonPart;
+		break;
+	    case TYPE_RADIO_BUTTON:
+		(**controlHandle).contrlHilite = kControlRadioButtonPart;
+		break;
+	    case TYPE_CHECK_BUTTON:
+		(**controlHandle).contrlHilite = kControlCheckBoxPart;
+		break;
+	}
+    } else if (butPtr->state == tkDisabledUid) {
+	(**controlHandle).contrlHilite = kControlInactivePart;
+    } else {
+	(**controlHandle).contrlHilite = kControlNoPart;
+    }
+
+    /*
+     * Now swap in the passed in GWorld for the portBits of our fake
+     * window.  We also adjust various fields in the WindowRecord to make
+     * the system think this is a normal window.
+     */
+
+    ((CWindowPeek) windowRef)->port.portPixMap = destPort->portPixMap;
+    ((CWindowPeek) windowRef)->port.portRect = destPort->portRect;
+    RectRgn(((CWindowPeek) windowRef)->port.visRgn, &destPort->portRect);
+    RectRgn(((CWindowPeek) windowRef)->strucRgn, &destPort->portRect);
+    RectRgn(((CWindowPeek) windowRef)->updateRgn, &destPort->portRect);
+    RectRgn(((CWindowPeek) windowRef)->contRgn, &destPort->portRect);
+    PortChanged(windowRef);
+    
+    /*
+     * Before we draw the control we must add the hidden window back to the
+     * main window list.  Otherwise, radiobuttons and checkbuttons will draw
+     * incorrectly.  I don't really know why - but clearly the control draw
+     * proc needs to have the controls window in the window list.
+     */
+
+    ((CWindowPeek) windowRef)->nextWindow = (CWindowPeek) LMGetWindowList();
+    LMSetWindowList(windowRef);
+
+    /*
+     * Now we can set the port to our doctered up window.  We next need
+     * to muck with the colors for the port & window to draw the control
+     * with the proper Tk colors.  If we need to we also draw a default
+     * ring for buttons.
+     */
+
+    SetPort(windowRef);
+    windowColorChanged = UpdateControlColors(butPtr, controlHandle, 
+	ccTabHandle, &saveBackColor);
+    Draw1Control(controlHandle);
+    if ((butPtr->type == TYPE_BUTTON) && 
+	    (butPtr->defaultState == tkActiveUid)) {
+	Rect box = (**controlHandle).contrlRect;
+	RGBColor rgbColor;
+
+	TkSetMacColor(butPtr->highlightColorPtr->pixel, &rgbColor);
+	RGBForeColor(&rgbColor);
+	PenSize(butPtr->highlightWidth - 1, butPtr->highlightWidth - 1);
+	InsetRect(&box, -butPtr->highlightWidth, -butPtr->highlightWidth);
+	FrameRoundRect(&box, 16, 16);
+    }
+    if (windowColorChanged) {
+	RGBColor dummyColor;
+	ChangeBackgroundWindowColor(windowRef, saveBackColor, &dummyColor);
+    }
+    
+    /*
+     * Clean up: remove the hidden window from the main window list.
+     */
+
+    LMSetWindowList((WindowRef) ((CWindowPeek) windowRef)->nextWindow);
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * UpdateControlColors --
+ *
+ *	This function will review the colors used to display
+ *	a Macintosh button.  If any non-standard colors are
+ *	used we create a custom palette for the button, populate
+ *	with the colors for the button and install the palette.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The Macintosh control may get a custom palette installed.
+ *
+ *--------------------------------------------------------------
+ */
+
+static int
+UpdateControlColors(
+    TkButton *butPtr,
+    ControlRef controlHandle,
+    CCTabHandle ccTabHandle,
+    RGBColor *saveColorPtr)
+{
+    XColor *xcolor;
+    
+    xcolor = Tk_3DBorderColor(butPtr->normalBorder);
+
+    (**ccTabHandle).ccSeed = 0;
+    (**ccTabHandle).ccRider = 0;
+    (**ccTabHandle).ctSize = 3;
+    (**ccTabHandle).ctTable[0].value = cBodyColor;
+    TkSetMacColor(xcolor->pixel,
+	&(**ccTabHandle).ctTable[0].rgb);
+    (**ccTabHandle).ctTable[1].value = cTextColor;
+    TkSetMacColor(butPtr->normalFg->pixel,
+	&(**ccTabHandle).ctTable[1].rgb);
+    (**ccTabHandle).ctTable[2].value = cFrameColor;
+    TkSetMacColor(butPtr->highlightColorPtr->pixel,
+	&(**ccTabHandle).ctTable[2].rgb);
+    SetControlColor(controlHandle, ccTabHandle);
+        
+    if (((xcolor->pixel >> 24) != CONTROL_BODY_PIXEL) && 
+	    ((butPtr->type == TYPE_CHECK_BUTTON) ||
+		    (butPtr->type == TYPE_RADIO_BUTTON))) {
+	RGBColor newColor;
+	
+	TkSetMacColor(xcolor->pixel, &newColor);
+	ChangeBackgroundWindowColor((**controlHandle).contrlOwner,
+		newColor, saveColorPtr);
+	return true;
+    }
+    
+    return false;
+}
+
+/*
+ *--------------------------------------------------------------
+ *
+ * ChangeBackgroundWindowColor --
+ *
+ *	This procedure will change the background color entry
+ *	in the Window's colortable.  The system isn't notified
+ *	of the change.  This call should only be used to fool
+ *	the drawing routines for checkboxes and radiobuttons.
+ *	Any change should be temporary and be reverted after
+ *	the widget is drawn.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	The Window's color table will be adjusted.
+ *
+ *--------------------------------------------------------------
+ */
+
+static void
+ChangeBackgroundWindowColor(
+    WindowRef macintoshWindow,	/* A Mac window whose color to change. */
+    RGBColor rgbColor,		/* The new RGB Color for the background. */
+    RGBColor *oldColor)		/* The old color of the background. */
+{
+    AuxWinHandle auxWinHandle;
+    WCTabHandle winCTabHandle;
+    short ctIndex;
+    ColorSpecPtr rgbScan;
+	
+    GetAuxWin(macintoshWindow, &auxWinHandle);
+    winCTabHandle = (WCTabHandle) ((**auxWinHandle).awCTable);
+
+    /*
+     * Scan through the color table until we find the content
+     * (background) color for the window.  Don't tell the system
+     * about the change - it will generate damage and we will get
+     * into an infinite loop.
+     */
+
+    ctIndex = (**winCTabHandle).ctSize;
+    while (ctIndex > -1) {
+	rgbScan = ctIndex + (**winCTabHandle).ctTable;
+
+	if (rgbScan->value == wContentColor) {
+	    *oldColor = rgbScan->rgb;
+	    rgbScan->rgb = rgbColor;
+	    break;
+	}
+	ctIndex--;
+    }
+}
+
+/*
+ *----------------------------------------------------------------------
+ *
+ * ButtonExitProc --
+ *
+ *	This procedure is invoked just before the application exits.
+ *	It frees all of the control handles, our dummy window, etc.
+ *
+ * Results:
+ *	None.
+ *
+ * Side effects:
+ *	Memory is freed.
+ *
+ *----------------------------------------------------------------------
+ */
+
+static void
+ButtonExitProc(clientData)
+    ClientData clientData;		/* Not used. */
+{
+    Rect pixRect = {0, 0, 10, 10};
+    Rect rgnRect = {0, 0, 0, 0};
+
+    /*
+     * Restore our dummy window to it's origional state by putting it
+     * back in the window list and restoring it's bits.  The destroy
+     * the controls and window.
+     */
+ 
+    ((CWindowPeek) windowRef)->nextWindow = (CWindowPeek) LMGetWindowList();
+    LMSetWindowList(windowRef);
+    ((CWindowPeek) windowRef)->port.portPixMap = oldPixPtr;
+    ((CWindowPeek) windowRef)->port.portRect = pixRect;
+    RectRgn(((CWindowPeek) windowRef)->port.visRgn, &rgnRect);
+    RectRgn(((CWindowPeek) windowRef)->strucRgn, &rgnRect);
+    RectRgn(((CWindowPeek) windowRef)->updateRgn, &rgnRect);
+    RectRgn(((CWindowPeek) windowRef)->contRgn, &rgnRect);
+    PortChanged(windowRef);
+
+    DisposeControl(buttonHandle);
+    DisposeControl(checkHandle);
+    DisposeControl(radioHandle);
+    DisposeWindow(windowRef);
+    windowRef = NULL;
+}