void myShowMenuBar(void)
{
if (!savedgray)
return;
CopyRgn(savedgray,GetGrayRgn());
LMSetMBarHeight(savedmbh);
DisposeRgn(savedgray);
savedgray=NULL;
}
void myHideMenuBar(
GDHandle ignoredDev)
{
RgnHandle gray,rect;
GDHandle dev;
(void)ignoredDev;
if (savedgray)
return;
gray=GetGrayRgn();
savedgray=NewRgn();
rect=NewRgn();
CopyRgn(gray,savedgray);
for (dev=GetDeviceList(); dev; dev=GetNextDevice(dev)) {
if (!TestDeviceAttribute(dev,screenDevice)
|| !TestDeviceAttribute(dev,screenActive))
continue;
RectRgn(rect,&(*dev)->gdRect);
UnionRgn(gray,rect,gray);
}
DisposeRgn(rect);
savedmbh=LMGetMBarHeight();
LMSetMBarHeight(0);
}
static void ROM_ShowMenuBar(_THIS)
{
#if !TARGET_API_MAC_CARBON /* This seems not to be available? -sts Aug 2000 */
RgnHandle drawRgn = nil;
RgnHandle menuRgn = nil;
RgnHandle tempRgn = nil;
RgnHandle grayRgn = nil;
WindowPtr window = nil;
GrafPtr wMgrPort;
GrafPtr savePort;
Rect menuRect;
long response;
short height;
EventRecord theEvent;
RGBColor saveRGB;
RGBColor blackRGB = { 0, 0, 0 };
height = GetMBarHeight();
if ((height <= 0) && (gSaveMenuBar > 0)) {
drawRgn = NewRgn();
menuRgn = NewRgn();
tempRgn = NewRgn();
if ( ! tempRgn || ! drawRgn || ! gSaveGrayRgn ) {
goto CLEANUP;
}
grayRgn = GetGrayRgn(); /* No need to check for this */
GetPort(&savePort);
GetWMgrPort(&wMgrPort);
/* Set the height properly */
LMSetMBarHeight(gSaveMenuBar);
/* Restore the old GrayRgn: rounded corners, etc, but not
the menubar -- subtract that out first! */
if (gSaveGrayRgn)
{
menuRect = (*GetMainDevice())->gdRect;
menuRect.bottom = menuRect.top + gSaveMenuBar;
RectRgn(menuRgn, &menuRect);
DiffRgn(grayRgn, gSaveGrayRgn, drawRgn); /* What do we inval? */
DiffRgn(drawRgn, menuRgn, drawRgn); /* Clip out the menu */
/* Now redraw the corners and other bits black */
SetPort(wMgrPort);
GetClip(tempRgn);
SetClip(drawRgn);
GetForeColor(&saveRGB);
RGBForeColor(&blackRGB);
PaintRgn(drawRgn);
RGBForeColor(&saveRGB);
SetClip(tempRgn);
SetPort(savePort);
UnionRgn(drawRgn, menuRgn, drawRgn); /* Put back the menu */
/* Now actually restore the GrayRgn */
CopyRgn(gSaveGrayRgn, grayRgn);
DisposeRgn(gSaveGrayRgn);
gSaveGrayRgn = nil;
}
/* Modify the vis regions of exposed windows and draw menubar */
window = (FrontWindow()) ? FrontWindow() : (WindowPtr) -1L;
PaintBehind(window, drawRgn);
CalcVisBehind(window, drawRgn);
DrawMenuBar();
SetPort(savePort);
gSaveMenuBar = 0;
/* Now show the control strip if it's present */
if (!Gestalt(gestaltControlStripAttr, &response) &&
(response & (1L << gestaltControlStripExists)))
{
if (gSaveCSVis && !SBIsControlStripVisible())
SBShowHideControlStrip(true);
gSaveCSVis = true;
}
/* Yield time so that floaters can catch up */
EventAvail(0, &theEvent);
EventAvail(0, &theEvent);
EventAvail(0, &theEvent);
EventAvail(0, &theEvent);
}
CLEANUP:
if (drawRgn) DisposeRgn(drawRgn);
if (menuRgn) DisposeRgn(menuRgn);
if (tempRgn) DisposeRgn(tempRgn);
#endif /* !TARGET_API_MAC_CARBON */
}
static void ROM_HideMenuBar(_THIS)
{
#if !TARGET_API_MAC_CARBON /* This seems not to be available? -sts Aug 2000 */
RgnHandle drawRgn = nil;
RgnHandle tempRgn = nil;
RgnHandle grayRgn = nil;
WindowPtr window = nil;
GDHandle gd = nil;
GrafPtr savePort;
long response;
short height;
EventRecord theEvent;
height = GetMBarHeight();
if ( height > 0 ) {
tempRgn = NewRgn();
drawRgn = NewRgn();
gSaveGrayRgn = NewRgn();
if ( ! tempRgn || ! drawRgn || ! gSaveGrayRgn ) {
goto CLEANUP;
}
grayRgn = GetGrayRgn(); /* No need to check for this */
GetPort(&savePort);
/* Hide the control strip if it's present, and record its
previous position into the dirty region for redrawing.
This isn't necessary, but may help catch stray bits. */
CopyRgn(grayRgn, tempRgn);
if (!Gestalt(gestaltControlStripAttr, &response) &&
(response & (1L << gestaltControlStripExists))) {
gSaveCSVis = SBIsControlStripVisible();
if (gSaveCSVis)
SBShowHideControlStrip(false);
}
DiffRgn(grayRgn, tempRgn, drawRgn);
/* Save the gray region once the control strip is hidden*/
CopyRgn(grayRgn, gSaveGrayRgn);
/* Change the menu height in lowmem */
gSaveMenuBar = height;
LMSetMBarHeight(0);
/* Walk the monitor rectangles, and combine any pieces that
aren't in GrayRgn: menubar, round corners, fake floaters. */
for(gd = GetDeviceList(); gd; gd = GetNextDevice(gd))
{
if (!TestDeviceAttribute(gd, screenDevice)) continue;
if (!TestDeviceAttribute(gd, screenActive)) continue;
RectRgn(tempRgn, &(*gd)->gdRect); /* Get the whole screen */
DiffRgn(tempRgn, grayRgn, tempRgn); /* Subtract out GrayRgn */
UnionRgn(tempRgn, drawRgn, drawRgn);/* Combine all the bits */
}
/* Add the bits into the GrayRgn */
UnionRgn(drawRgn, grayRgn, grayRgn);
/* Modify the vis regions of exposed windows */
window = (FrontWindow()) ? FrontWindow() : (WindowPtr) -1L;
PaintBehind(window, drawRgn);
CalcVisBehind(window, drawRgn);
SetPort(savePort);
/* Yield time so that floaters can catch up */
EventAvail(0, &theEvent);
EventAvail(0, &theEvent);
EventAvail(0, &theEvent);
EventAvail(0, &theEvent);
}
CLEANUP:
if (tempRgn) DisposeRgn(tempRgn);
if (drawRgn) DisposeRgn(drawRgn);
#endif /* !TARGET_API_MAC_CARBON */
}
