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- /*
- * 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 1.16 97/06/26 21:23:35
- */
-
- #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;
- }
-