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|
/*
* tkMacWindowMgr.c --
*
* Implements common window manager functions for the Macintosh.
*
* Copyright (c) 1995-1998 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: @(#) tkMacWindowMgr.c 1.62 98/01/16 10:42:51
*/
#include <Events.h>
#include <Dialogs.h>
#include <EPPC.h>
#include <Windows.h>
#include <ToolUtils.h>
#include <DiskInit.h>
#include <LowMem.h>
#include <Timer.h>
#include <Sound.h>
#include "tkInt.h"
#include "tkPort.h"
#include "tkMacInt.h"
#define TK_DEFAULT_ABOUT 128
/*
* Declarations of global variables defined in this file.
*/
int tkMacAppInFront = true; /* Boolean variable for determining
* if we are the frontmost app. */
/*
* Non-standard event types that can be passed to HandleEvent.
* These are defined and used by Netscape's plugin architecture.
*/
#define getFocusEvent (osEvt + 16)
#define loseFocusEvent (osEvt + 17)
#define adjustCursorEvent (osEvt + 18)
/*
* Declarations of static variables used in this file.
*/
static int gEatButtonUp = 0; /* 1 if we need to eat the next
* up event */
static Tk_Window gGrabWinPtr = NULL; /* Current grab window, NULL if no grab. */
static Tk_Window gKeyboardWinPtr = NULL; /* Current keyboard grab window. */
static RgnHandle gDamageRgn = NULL; /* Damage region used for handling
* screen updates. */
/*
* Forward declarations of procedures used in this file.
*/
static void BringWindowForward _ANSI_ARGS_((WindowRef wRef));
static int CheckEventsAvail _ANSI_ARGS_((void));
static int GenerateActivateEvents _ANSI_ARGS_((EventRecord *eventPtr,
Window window));
static int GenerateFocusEvent _ANSI_ARGS_((EventRecord *eventPtr,
Window window));
static int GenerateKeyEvent _ANSI_ARGS_((EventRecord *eventPtr,
Window window, UInt32 savedCode));
static int GenerateUpdateEvent _ANSI_ARGS_((EventRecord *eventPtr,
Window window));
static void GenerateUpdates _ANSI_ARGS_((RgnHandle updateRgn,
TkWindow *winPtr));
static int GeneratePollingEvents _ANSI_ARGS_((void));
static int GeneratePollingEvents2 _ANSI_ARGS_((Window window,
int adjustCursor));
static OSErr TellWindowDefProcToCalcRegions _ANSI_ARGS_((WindowRef wRef));
static int WindowManagerMouse _ANSI_ARGS_((EventRecord *theEvent,
Window window));
/*
*----------------------------------------------------------------------
*
* WindowManagerMouse --
*
* This function determines if a button event is a "Window Manager"
* function or an event that should be passed to Tk's event
* queue.
*
* Results:
* Return true if event was placed on Tk's event queue.
*
* Side effects:
* Depends on where the button event occurs.
*
*----------------------------------------------------------------------
*/
static int
WindowManagerMouse(
EventRecord *eventPtr, /* Macintosh event record. */
Window window) /* Window pointer. */
{
WindowRef whichWindow, frontWindow;
Tk_Window tkwin;
Point where, where2;
int xOffset, yOffset;
short windowPart;
frontWindow = FrontWindow();
/*
* The window manager only needs to know about mouse down events
* and sometimes we need to "eat" the mouse up. Otherwise, we
* just pass the event to Tk.
*/
if (eventPtr->what == mouseUp) {
if (gEatButtonUp) {
gEatButtonUp = false;
return false;
}
return TkGenerateButtonEvent(eventPtr->where.h, eventPtr->where.v,
window, TkMacButtonKeyState());
}
windowPart = FindWindow(eventPtr->where, &whichWindow);
tkwin = Tk_IdToWindow(tkDisplayList->display, window);
switch (windowPart) {
case inSysWindow:
SystemClick(eventPtr, (GrafPort *) whichWindow);
return false;
case inDrag:
if (whichWindow != frontWindow) {
if (!(eventPtr->modifiers & cmdKey)) {
if ((gGrabWinPtr != NULL) && (gGrabWinPtr != tkwin)) {
SysBeep(1);
return false;
}
}
}
/*
* Call DragWindow to move the window around. It will
* also eat the mouse up event.
*/
SetPort((GrafPort *) whichWindow);
where.h = where.v = 0;
LocalToGlobal(&where);
DragWindow(whichWindow, eventPtr->where,
&tcl_macQdPtr->screenBits.bounds);
gEatButtonUp = false;
where2.h = where2.v = 0;
LocalToGlobal(&where2);
if (EqualPt(where, where2)) {
return false;
}
TkMacWindowOffset(whichWindow, &xOffset, &yOffset);
where2.h -= xOffset;
where2.v -= yOffset;
TkGenWMConfigureEvent(tkwin, where2.h, where2.v,
-1, -1, TK_LOCATION_CHANGED);
return true;
case inGrow:
case inContent:
if (whichWindow != frontWindow ) {
/*
* This click moves the window forward. We don't want
* the corasponding mouse-up to be reported to the application
* or else it will mess up some Tk scripts.
*/
if ((gGrabWinPtr != NULL) && (gGrabWinPtr != tkwin)) {
SysBeep(1);
return false;
}
BringWindowForward(whichWindow);
gEatButtonUp = true;
SetPort((GrafPort *) whichWindow);
return false;
} else {
/*
* Generally the content region is the domain of Tk
* sub-windows. However, one exception is the grow
* region. A button down in this area will be handled
* by the window manager. Note: this means that Tk
* may not get button down events in this area!
*/
if (TkMacGrowToplevel(whichWindow, eventPtr->where) == true) {
return true;
} else {
return TkGenerateButtonEvent(eventPtr->where.h,
eventPtr->where.v, window, TkMacButtonKeyState());
}
}
case inGoAway:
if (TrackGoAway( whichWindow, eventPtr->where)) {
if (tkwin == NULL) {
return false;
}
TkGenWMDestroyEvent(tkwin);
return true;
}
return false;
case inMenuBar:
{
int oldMode;
KeyMap theKeys;
GetKeys(theKeys);
oldMode = Tcl_SetServiceMode(TCL_SERVICE_ALL);
TkMacClearMenubarActive();
TkMacHandleMenuSelect(MenuSelect(eventPtr->where),
theKeys[1] & 4);
Tcl_SetServiceMode(oldMode);
return true; /* TODO: may not be on event on queue. */
}
case inZoomIn:
case inZoomOut:
if (TkMacZoomToplevel(whichWindow, eventPtr->where, windowPart)
== true) {
return true;
} else {
return false;
}
default:
return false;
}
}
/*
*----------------------------------------------------------------------
*
* TkAboutDlg --
*
* Displays the default Tk About box. This code uses Macintosh
* resources to define the content of the About Box.
*
* Results:
* None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
TkAboutDlg()
{
DialogPtr aboutDlog;
short itemHit = -9;
aboutDlog = GetNewDialog(128, NULL, (void*)(-1));
if (!aboutDlog) {
return;
}
SelectWindow((WindowRef) aboutDlog);
while (itemHit != 1) {
ModalDialog( NULL, &itemHit);
}
DisposDialog(aboutDlog);
aboutDlog = NULL;
SelectWindow(FrontWindow());
return;
}
/*
*----------------------------------------------------------------------
*
* GenerateUpdateEvent --
*
* Given a Macintosh update event this function generates all the
* X update events needed by Tk.
*
* Results:
* True if event(s) are generated - false otherwise.
*
* Side effects:
* Additional events may be place on the Tk event queue.
*
*----------------------------------------------------------------------
*/
static int
GenerateUpdateEvent(
EventRecord *eventPtr, /* Incoming Mac event */
Window window) /* Root X window for event. */
{
WindowRef macWindow;
register TkWindow *winPtr;
winPtr = (TkWindow *) Tk_IdToWindow(tkDisplayList->display, window);
if (winPtr == NULL) {
return false;
}
if (gDamageRgn == NULL) {
gDamageRgn = NewRgn();
}
/*
* After the call to BeginUpdate the visable region (visRgn) of the
* window is equal to the intersection of the real visable region and
* the update region for this event. We use this region in all of our
* calculations.
*/
if (eventPtr->message != NULL) {
macWindow = (WindowRef) TkMacGetDrawablePort(window);
BeginUpdate(macWindow);
GenerateUpdates(macWindow->visRgn, winPtr);
EndUpdate(macWindow);
return true;
} else {
/*
* This event didn't come from the system. This might
* occur if we are running from inside of Netscape.
* In this we shouldn't call BeginUpdate as the vis region
* may be NULL.
*/
RgnHandle rgn;
Rect bounds;
rgn = NewRgn();
TkMacWinBounds(winPtr, &bounds);
RectRgn(rgn, &bounds);
GenerateUpdates(rgn, winPtr);
DisposeRgn(rgn);
return true;
}
}
/*
*----------------------------------------------------------------------
*
* GenerateUpdates --
*
* Given a Macintosh update region and a Tk window this function
* geneates a X damage event for the window if it is within the
* update region. The function will then recursivly have each
* damaged window generate damage events for its child windows.
*
* Results:
* None.
*
* Side effects:
* Additional events may be place on the Tk event queue.
*
*----------------------------------------------------------------------
*/
static void
GenerateUpdates(
RgnHandle updateRgn,
TkWindow *winPtr)
{
TkWindow *childPtr;
XEvent event;
Rect bounds;
TkMacWinBounds(winPtr, &bounds);
if (bounds.top > (*updateRgn)->rgnBBox.bottom ||
(*updateRgn)->rgnBBox.top > bounds.bottom ||
bounds.left > (*updateRgn)->rgnBBox.right ||
(*updateRgn)->rgnBBox.left > bounds.right ||
!RectInRgn(&bounds, updateRgn)) {
return;
}
event.xany.serial = Tk_Display(winPtr)->request;
event.xany.send_event = false;
event.xany.window = Tk_WindowId(winPtr);
event.xany.display = Tk_Display(winPtr);
event.type = Expose;
/*
* Compute the bounding box of the area that the damage occured in.
*/
/*
* CopyRgn(TkMacVisableClipRgn(winPtr), rgn);
* TODO: this call doesn't work doing resizes!!!
*/
RectRgn(gDamageRgn, &bounds);
SectRgn(gDamageRgn, updateRgn, gDamageRgn);
OffsetRgn(gDamageRgn, -bounds.left, -bounds.top);
event.xexpose.x = (**gDamageRgn).rgnBBox.left;
event.xexpose.y = (**gDamageRgn).rgnBBox.top;
event.xexpose.width = (**gDamageRgn).rgnBBox.right -
(**gDamageRgn).rgnBBox.left;
event.xexpose.height = (**gDamageRgn).rgnBBox.bottom -
(**gDamageRgn).rgnBBox.top;
event.xexpose.count = 0;
Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
/*
* Generate updates for the children of this window
*/
for (childPtr = winPtr->childList; childPtr != NULL;
childPtr = childPtr->nextPtr) {
if (!Tk_IsMapped(childPtr) || Tk_IsTopLevel(childPtr)) {
continue;
}
GenerateUpdates(updateRgn, childPtr);
}
/*
* Generate updates for any contained windows
*/
if (Tk_IsContainer(winPtr)) {
childPtr = TkpGetOtherWindow(winPtr);
if (childPtr != NULL && Tk_IsMapped(childPtr)) {
GenerateUpdates(updateRgn, childPtr);
}
/*
* NOTE: Here we should handle out of process embedding.
*/
}
return;
}
/*
*----------------------------------------------------------------------
*
* TkGenerateButtonEvent --
*
* Given a global x & y position and the button key status this
* procedure generates the appropiate X button event. It also
* handles the state changes needed to implement implicit grabs.
*
* Results:
* True if event(s) are generated - false otherwise.
*
* Side effects:
* Additional events may be place on the Tk event queue.
* Grab state may also change.
*
*----------------------------------------------------------------------
*/
int
TkGenerateButtonEvent(
int x, /* X location of mouse */
int y, /* Y location of mouse */
Window window, /* X Window containing button event. */
unsigned int state) /* Button Key state suitable for X event */
{
WindowRef whichWin, frontWin;
Point where;
Tk_Window tkwin;
int dummy;
/*
* ButtonDown events will always occur in the front
* window. ButtonUp events, however, may occur anywhere
* on the screen. ButtonUp events should only be sent
* to Tk if in the front window or during an implicit grab.
*/
where.h = x;
where.v = y;
FindWindow(where, &whichWin);
frontWin = FrontWindow();
if ((frontWin == NULL) || (frontWin != whichWin && gGrabWinPtr == NULL)) {
return false;
}
tkwin = Tk_IdToWindow(tkDisplayList->display, window);
GlobalToLocal(&where);
if (tkwin != NULL) {
tkwin = Tk_TopCoordsToWindow(tkwin, where.h, where.v, &dummy, &dummy);
}
Tk_UpdatePointer(tkwin, x, y, state);
return true;
}
/*
*----------------------------------------------------------------------
*
* GenerateActivateEvents --
*
* Generate Activate/Deactivate events from a Macintosh Activate
* event. Note, the activate-on-foreground bit must be set in the
* SIZE flags to ensure we get Activate/Deactivate in addition to
* Susspend/Resume events.
*
* Results:
* Returns true if events were generate.
*
* Side effects:
* Queue events on Tk's event queue.
*
*----------------------------------------------------------------------
*/
static int
GenerateActivateEvents(
EventRecord *eventPtr, /* Incoming Mac event */
Window window) /* Root X window for event. */
{
TkWindow *winPtr;
winPtr = (TkWindow *) Tk_IdToWindow(tkDisplayList->display, window);
if (winPtr == NULL || winPtr->window == None) {
return false;
}
TkGenerateActivateEvents(winPtr,
(eventPtr->modifiers & activeFlag) ? 1 : 0);
return true;
}
/*
*----------------------------------------------------------------------
*
* XSetInputFocus --
*
* Change the focus window for the application.
*
* Results:
* None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
XSetInputFocus(
Display* display,
Window focus,
int revert_to,
Time time)
{
/*
* Don't need to do a thing. Tk manages the focus for us.
*/
}
/*
*----------------------------------------------------------------------
*
* TkpChangeFocus --
*
* This procedure is a stub on the Mac because we always own the
* focus if we are a front most application.
*
* Results:
* The return value is the serial number of the command that
* changed the focus. It may be needed by the caller to filter
* out focus change events that were queued before the command.
* If the procedure doesn't actually change the focus then
* it returns 0.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
TkpChangeFocus(winPtr, force)
TkWindow *winPtr; /* Window that is to receive the X focus. */
int force; /* Non-zero means claim the focus even
* if it didn't originally belong to
* topLevelPtr's application. */
{
/*
* We don't really need to do anything on the Mac. Tk will
* keep all this state for us.
*/
if (winPtr->atts.override_redirect) {
return 0;
}
/*
* Remember the current serial number for the X server and issue
* a dummy server request. This marks the position at which we
* changed the focus, so we can distinguish FocusIn and FocusOut
* events on either side of the mark.
*/
return NextRequest(winPtr->display);
}
/*
*----------------------------------------------------------------------
*
* GenerateFocusEvent --
*
* Generate FocusIn/FocusOut events from a Macintosh Activate
* event. Note, the activate-on-foreground bit must be set in
* the SIZE flags to ensure we get Activate/Deactivate in addition
* to Susspend/Resume events.
*
* Results:
* Returns true if events were generate.
*
* Side effects:
* Queue events on Tk's event queue.
*
*----------------------------------------------------------------------
*/
static int
GenerateFocusEvent(
EventRecord *eventPtr, /* Incoming Mac event */
Window window) /* Root X window for event. */
{
XEvent event;
Tk_Window tkwin;
tkwin = Tk_IdToWindow(tkDisplayList->display, window);
if (tkwin == NULL) {
return false;
}
/*
* Generate FocusIn and FocusOut events. This event
* is only sent to the toplevel window.
*/
if (eventPtr->modifiers & activeFlag) {
event.xany.type = FocusIn;
} else {
event.xany.type = FocusOut;
}
event.xany.serial = tkDisplayList->display->request;
event.xany.send_event = False;
event.xfocus.display = tkDisplayList->display;
event.xfocus.window = window;
event.xfocus.mode = NotifyNormal;
event.xfocus.detail = NotifyDetailNone;
Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
return true;
}
/*
*----------------------------------------------------------------------
*
* GenerateKeyEvent --
*
* Given Macintosh keyUp, keyDown & autoKey events this function
* generates the appropiate X key events. The window that is passed
* should represent the frontmost window - which will recieve the
* event.
*
* Results:
* True if event(s) are generated - false otherwise.
*
* Side effects:
* Additional events may be place on the Tk event queue.
*
*----------------------------------------------------------------------
*/
static int
GenerateKeyEvent(
EventRecord *eventPtr, /* Incoming Mac event */
Window window, /* Root X window for event. */
UInt32 savedKeyCode) /* If non-zero, this is a lead byte which
* should be combined with the character
* in this event to form one multi-byte
* character. */
{
Point where;
Tk_Window tkwin;
XEvent event;
unsigned char byte;
char buf[16];
/*
* The focus must be in the FrontWindow on the Macintosh.
* We then query Tk to determine the exact Tk window
* that owns the focus.
*/
tkwin = Tk_IdToWindow(tkDisplayList->display, window);
tkwin = (Tk_Window) ((TkWindow *) tkwin)->dispPtr->focusPtr;
if (tkwin == NULL) {
return false;
}
byte = (unsigned char) (eventPtr->message & charCodeMask);
if ((savedKeyCode == 0) &&
(Tcl_ExternalToUtf(NULL, NULL, (char *) &byte, 1, 0, NULL,
buf, sizeof(buf), NULL, NULL, NULL) != TCL_OK)) {
/*
* This event specifies a lead byte. Wait for the second byte
* to come in before sending the XEvent.
*/
return false;
}
where.v = eventPtr->where.v;
where.h = eventPtr->where.h;
event.xany.send_event = False;
event.xkey.same_screen = true;
event.xkey.subwindow = None;
event.xkey.time = TkpGetMS();
event.xkey.x_root = where.h;
event.xkey.y_root = where.v;
GlobalToLocal(&where);
Tk_TopCoordsToWindow(tkwin, where.h, where.v,
&event.xkey.x, &event.xkey.y);
event.xkey.keycode = byte |
((savedKeyCode & charCodeMask) << 8) |
((eventPtr->message & keyCodeMask) << 8);
event.xany.serial = Tk_Display(tkwin)->request;
event.xkey.window = Tk_WindowId(tkwin);
event.xkey.display = Tk_Display(tkwin);
event.xkey.root = XRootWindow(Tk_Display(tkwin), 0);
event.xkey.state = TkMacButtonKeyState();
if (eventPtr->what == keyDown) {
event.xany.type = KeyPress;
Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
} else if (eventPtr->what == keyUp) {
event.xany.type = KeyRelease;
Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
} else {
/*
* Autokey events send multiple XKey events.
*
* Note: the last KeyRelease will always be missed with
* this scheme. However, most Tk scripts don't look for
* KeyUp events so we should be OK.
*/
event.xany.type = KeyRelease;
Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
event.xany.type = KeyPress;
Tk_QueueWindowEvent(&event, TCL_QUEUE_TAIL);
}
return true;
}
/*
*----------------------------------------------------------------------
*
* GeneratePollingEvents --
*
* This function polls the mouse position and generates X Motion,
* Enter & Leave events. The cursor is also updated at this
* time.
*
* Results:
* True if event(s) are generated - false otherwise.
*
* Side effects:
* Additional events may be place on the Tk event queue.
* The cursor may be changed.
*
*----------------------------------------------------------------------
*/
static int
GeneratePollingEvents()
{
Tk_Window tkwin, rootwin;
Window window;
WindowRef whichwindow, frontWin;
Point whereLocal, whereGlobal;
Boolean inContentRgn;
short part;
int local_x, local_y;
int generatedEvents = false;
/*
* First we get the current mouse position and determine
* what Tk window the mouse is over (if any).
*/
frontWin = FrontWindow();
if (frontWin == NULL) {
return false;
}
SetPort((GrafPort *) frontWin);
GetMouse(&whereLocal);
whereGlobal = whereLocal;
LocalToGlobal(&whereGlobal);
part = FindWindow(whereGlobal, &whichwindow);
inContentRgn = (part == inContent || part == inGrow);
if ((frontWin != whichwindow) || !inContentRgn) {
tkwin = NULL;
} else {
window = TkMacGetXWindow(whichwindow);
rootwin = Tk_IdToWindow(tkDisplayList->display, window);
if (rootwin == NULL) {
tkwin = NULL;
} else {
tkwin = Tk_TopCoordsToWindow(rootwin, whereLocal.h, whereLocal.v,
&local_x, &local_y);
}
}
/*
* The following call will generate the appropiate X events and
* adjust any state that Tk must remember.
*/
if ((tkwin == NULL) && (gGrabWinPtr != NULL)) {
tkwin = gGrabWinPtr;
}
Tk_UpdatePointer(tkwin, whereGlobal.h, whereGlobal.v,
TkMacButtonKeyState());
/*
* Finally, we make sure the proper cursor is installed. The installation
* is polled to 1) make our resize hack work, and 2) make sure we have the
* proper cursor even if someone else changed the cursor out from under
* us.
*/
if ((gGrabWinPtr == NULL) && (part == inGrow) &&
TkMacResizable((TkWindow *) tkwin) &&
(TkMacGetScrollbarGrowWindow((TkWindow *) tkwin) == NULL)) {
TkMacInstallCursor(1);
} else {
TkMacInstallCursor(0);
}
return true;
}
/*
*----------------------------------------------------------------------
*
* GeneratePollingEvents2 --
*
* This function polls the mouse position and generates X Motion,
* Enter & Leave events. The cursor is also updated at this
* time. NOTE: this version is for Netscape!!!
*
* Results:
* True if event(s) are generated - false otherwise.
*
* Side effects:
* Additional events may be place on the Tk event queue.
* The cursor may be changed.
*
*----------------------------------------------------------------------
*/
static int
GeneratePollingEvents2(
Window window,
int adjustCursor)
{
Tk_Window tkwin, rootwin;
WindowRef whichwindow, frontWin;
Point whereLocal, whereGlobal;
int local_x, local_y;
int generatedEvents = false;
Rect bounds;
/*
* First we get the current mouse position and determine
* what Tk window the mouse is over (if any).
*/
frontWin = FrontWindow();
if (frontWin == NULL) {
return false;
}
SetPort((GrafPort *) frontWin);
GetMouse(&whereLocal);
whereGlobal = whereLocal;
LocalToGlobal(&whereGlobal);
/*
* Determine if we are in a Tk window or not.
*/
whichwindow = (WindowRef) TkMacGetDrawablePort(window);
if (whichwindow != frontWin) {
tkwin = NULL;
} else {
rootwin = Tk_IdToWindow(tkDisplayList->display, window);
TkMacWinBounds((TkWindow *) rootwin, &bounds);
if (!PtInRect(whereLocal, &bounds)) {
tkwin = NULL;
} else {
tkwin = Tk_TopCoordsToWindow(rootwin, whereLocal.h, whereLocal.v,
&local_x, &local_y);
}
}
/*
* The following call will generate the appropiate X events and
* adjust any state that Tk must remember.
*/
if ((tkwin == NULL) && (gGrabWinPtr != NULL)) {
tkwin = gGrabWinPtr;
}
Tk_UpdatePointer(tkwin, whereGlobal.h, whereGlobal.v,
TkMacButtonKeyState());
/*
* Finally, we make sure the proper cursor is installed. The installation
* is polled to 1) make our resize hack work, and 2) make sure we have the
* proper cursor even if someone else changed the cursor out from under
* us.
*/
if (adjustCursor) {
TkMacInstallCursor(0);
}
return true;
}
/*
*----------------------------------------------------------------------
*
* TkMacButtonKeyState --
*
* Returns the current state of the button & modifier keys.
*
* Results:
* A bitwise inclusive OR of a subset of the following:
* Button1Mask, ShiftMask, LockMask, ControlMask, Mod?Mask,
* Mod?Mask.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
unsigned int
TkMacButtonKeyState()
{
unsigned int state = 0;
KeyMap theKeys;
if (Button() & !gEatButtonUp) {
state |= Button1Mask;
}
GetKeys(theKeys);
if (theKeys[1] & 2) {
state |= LockMask;
}
if (theKeys[1] & 1) {
state |= ShiftMask;
}
if (theKeys[1] & 8) {
state |= ControlMask;
}
if (theKeys[1] & 32768) {
state |= Mod1Mask; /* command key */
}
if (theKeys[1] & 4) {
state |= Mod2Mask; /* option key */
}
return state;
}
/*
*----------------------------------------------------------------------
*
* XGrabKeyboard --
*
* Simulates a keyboard grab by setting the focus.
*
* Results:
* Always returns GrabSuccess.
*
* Side effects:
* Sets the keyboard focus to the specified window.
*
*----------------------------------------------------------------------
*/
int
XGrabKeyboard(
Display* display,
Window grab_window,
Bool owner_events,
int pointer_mode,
int keyboard_mode,
Time time)
{
gKeyboardWinPtr = Tk_IdToWindow(display, grab_window);
return GrabSuccess;
}
/*
*----------------------------------------------------------------------
*
* XUngrabKeyboard --
*
* Releases the simulated keyboard grab.
*
* Results:
* None.
*
* Side effects:
* Sets the keyboard focus back to the value before the grab.
*
*----------------------------------------------------------------------
*/
void
XUngrabKeyboard(
Display* display,
Time time)
{
gKeyboardWinPtr = NULL;
}
/*
*----------------------------------------------------------------------
*
* XQueryPointer --
*
* Check the current state of the mouse. This is not a complete
* implementation of this function. It only computes the root
* coordinates and the current mask.
*
* Results:
* Sets root_x_return, root_y_return, and mask_return. Returns
* true on success.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Bool
XQueryPointer(
Display* display,
Window w,
Window* root_return,
Window* child_return,
int* root_x_return,
int* root_y_return,
int* win_x_return,
int* win_y_return,
unsigned int* mask_return)
{
Point where;
GetMouse(&where);
LocalToGlobal(&where);
*root_x_return = where.h;
*root_y_return = where.v;
*mask_return = TkMacButtonKeyState();
return True;
}
/*
*----------------------------------------------------------------------
*
* TkMacGenerateTime --
*
* Returns the total number of ticks from startup This function
* is used to generate the time of generated X events.
*
* Results:
* Returns the current time (ticks from startup).
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
Time
TkMacGenerateTime()
{
return (Time) LMGetTicks();
}
/*
*----------------------------------------------------------------------
*
* TkMacConvertEvent --
*
* This function converts a Macintosh event into zero or more
* Tcl events.
*
* Results:
* Returns 1 if event added to Tcl queue, 0 otherwse.
*
* Side effects:
* May add events to Tcl's event queue.
*
*----------------------------------------------------------------------
*/
int
TkMacConvertEvent(
EventRecord *eventPtr)
{
WindowRef whichWindow;
Window window;
int eventFound = false;
static UInt32 savedKeyCode;
switch (eventPtr->what) {
case nullEvent:
case adjustCursorEvent:
if (GeneratePollingEvents()) {
eventFound = true;
}
break;
case updateEvt:
whichWindow = (WindowRef)eventPtr->message;
window = TkMacGetXWindow(whichWindow);
if (GenerateUpdateEvent(eventPtr, window)) {
eventFound = true;
}
break;
case mouseDown:
case mouseUp:
FindWindow(eventPtr->where, &whichWindow);
window = TkMacGetXWindow(whichWindow);
if (WindowManagerMouse(eventPtr, window)) {
eventFound = true;
}
break;
case autoKey:
case keyDown:
/*
* Handle menu-key events here. If it is *not*
* a menu key - just fall through to handle as a
* normal key event.
*/
if ((eventPtr->modifiers & cmdKey) == cmdKey) {
long menuResult;
int oldMode;
oldMode = Tcl_SetServiceMode(TCL_SERVICE_ALL);
menuResult = MenuKey(eventPtr->message & charCodeMask);
Tcl_SetServiceMode(oldMode);
if (HiWord(menuResult) != 0) {
TkMacHandleMenuSelect(menuResult, false);
break;
}
}
/* fall through */
case keyUp:
whichWindow = FrontWindow();
if (whichWindow == NULL) {
/*
* This happens if we get a key event before Tk has had a
* chance to actually create and realize ".", if they type
* when "." is withdrawn(!), or between the time "." is
* destroyed and the app exits.
*/
return false;
}
window = TkMacGetXWindow(whichWindow);
if (GenerateKeyEvent(eventPtr, window, savedKeyCode) == 0) {
savedKeyCode = eventPtr->message;
return false;
}
eventFound = true;
break;
case activateEvt:
window = TkMacGetXWindow((WindowRef) eventPtr->message);
eventFound |= GenerateActivateEvents(eventPtr, window);
eventFound |= GenerateFocusEvent(eventPtr, window);
break;
case getFocusEvent:
eventPtr->modifiers |= activeFlag;
window = TkMacGetXWindow((WindowRef) eventPtr->message);
eventFound |= GenerateFocusEvent(eventPtr, window);
break;
case loseFocusEvent:
eventPtr->modifiers &= ~activeFlag;
window = TkMacGetXWindow((WindowRef) eventPtr->message);
eventFound |= GenerateFocusEvent(eventPtr, window);
break;
case kHighLevelEvent:
TkMacDoHLEvent(eventPtr);
/* TODO: should return true if events were placed on event queue. */
break;
case osEvt:
/*
* Do clipboard conversion.
*/
switch ((eventPtr->message & osEvtMessageMask) >> 24) {
case mouseMovedMessage:
if (GeneratePollingEvents()) {
eventFound = true;
}
break;
case suspendResumeMessage:
if (!(eventPtr->message & resumeFlag)) {
TkSuspendClipboard();
}
tkMacAppInFront = (eventPtr->message & resumeFlag);
break;
}
break;
case diskEvt:
/*
* Disk insertion.
*/
if (HiWord(eventPtr->message) != noErr) {
Point pt;
DILoad();
pt.v = pt.h = 120; /* parameter ignored in sys 7 */
DIBadMount(pt, eventPtr->message);
DIUnload();
}
break;
}
savedKeyCode = 0;
return eventFound;
}
/*
*----------------------------------------------------------------------
*
* TkMacConvertTkEvent --
*
* This function converts a Macintosh event into zero or more
* Tcl events. It is intended for use in Netscape-style embedding.
*
* Results:
* Returns 1 if event added to Tcl queue, 0 otherwse.
*
* Side effects:
* May add events to Tcl's event queue.
*
*----------------------------------------------------------------------
*/
int
TkMacConvertTkEvent(
EventRecord *eventPtr,
Window window)
{
int eventFound = false;
Point where;
static UInt32 savedKeyCode;
/*
* By default, assume it is legal for us to set the cursor
*/
Tk_MacTkOwnsCursor(1);
switch (eventPtr->what) {
case nullEvent:
/*
* We get NULL events only when the cursor is NOT over
* the plugin. Otherwise we get updateCursor events.
* We will not generate polling events or move the cursor
* in this case.
*/
eventFound = false;
break;
case adjustCursorEvent:
if (GeneratePollingEvents2(window, 1)) {
eventFound = true;
}
break;
case updateEvt:
/*
* It is possibly not legal for us to set the cursor
*/
Tk_MacTkOwnsCursor(0);
if (GenerateUpdateEvent(eventPtr, window)) {
eventFound = true;
}
break;
case mouseDown:
case mouseUp:
GetMouse(&where);
LocalToGlobal(&where);
eventFound |= TkGenerateButtonEvent(where.h, where.v,
window, TkMacButtonKeyState());
break;
case autoKey:
case keyDown:
/*
* Handle menu-key events here. If it is *not*
* a menu key - just fall through to handle as a
* normal key event.
*/
if ((eventPtr->modifiers & cmdKey) == cmdKey) {
long menuResult = MenuKey(eventPtr->message & charCodeMask);
if (HiWord(menuResult) != 0) {
TkMacHandleMenuSelect(menuResult, false);
break;
}
}
/* fall through. */
case keyUp:
if (GenerateKeyEvent(eventPtr, window, savedKeyCode) == 0) {
savedKeyCode = eventPtr->message;
return false;
}
eventFound = true;
break;
case activateEvt:
/*
* It is probably not legal for us to set the cursor
* here, since we don't know where the mouse is in the
* window that is being activated.
*/
Tk_MacTkOwnsCursor(0);
eventFound |= GenerateActivateEvents(eventPtr, window);
eventFound |= GenerateFocusEvent(eventPtr, window);
break;
case getFocusEvent:
eventPtr->modifiers |= activeFlag;
eventFound |= GenerateFocusEvent(eventPtr, window);
break;
case loseFocusEvent:
eventPtr->modifiers &= ~activeFlag;
eventFound |= GenerateFocusEvent(eventPtr, window);
break;
case kHighLevelEvent:
TkMacDoHLEvent(eventPtr);
/* TODO: should return true if events were placed on event queue. */
break;
case osEvt:
/*
* Do clipboard conversion.
*/
switch ((eventPtr->message & osEvtMessageMask) >> 24) {
/*
* It is possibly not legal for us to set the cursor.
* Netscape sends us these events all the time...
*/
Tk_MacTkOwnsCursor(0);
case mouseMovedMessage:
/* if (GeneratePollingEvents2(window, 0)) {
eventFound = true;
} NEXT LINE IS TEMPORARY */
eventFound = false;
break;
case suspendResumeMessage:
if (!(eventPtr->message & resumeFlag)) {
TkSuspendClipboard();
}
tkMacAppInFront = (eventPtr->message & resumeFlag);
break;
}
break;
case diskEvt:
/*
* Disk insertion.
*/
if (HiWord(eventPtr->message) != noErr) {
Point pt;
DILoad();
pt.v = pt.h = 120; /* parameter ignored in sys 7 */
DIBadMount(pt, eventPtr->message);
DIUnload();
}
break;
}
savedKeyCode = 0;
return eventFound;
}
/*
*----------------------------------------------------------------------
*
* CheckEventsAvail --
*
* Checks to see if events are available on the Macintosh queue.
* This function looks for both queued events (eg. key & button)
* and generated events (update).
*
* Results:
* True is events exist, false otherwise.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
static int
CheckEventsAvail()
{
QHdrPtr evPtr;
WindowPeek macWinPtr;
evPtr = GetEvQHdr();
if (evPtr->qHead != NULL) {
return true;
}
macWinPtr = (WindowPeek) FrontWindow();
while (macWinPtr != NULL) {
if (!EmptyRgn(macWinPtr->updateRgn)) {
return true;
}
macWinPtr = macWinPtr->nextWindow;
}
return false;
}
/*
*----------------------------------------------------------------------
*
* TkpSetCapture --
*
* This function captures the mouse so that all future events
* will be reported to this window, even if the mouse is outside
* the window. If the specified window is NULL, then the mouse
* is released.
*
* Results:
* None.
*
* Side effects:
* Sets the capture flag and captures the mouse.
*
*----------------------------------------------------------------------
*/
void
TkpSetCapture(
TkWindow *winPtr) /* Capture window, or NULL. */
{
while ((winPtr != NULL) && !Tk_IsTopLevel(winPtr)) {
winPtr = winPtr->parentPtr;
}
gGrabWinPtr = (Tk_Window) winPtr;
}
/*
*----------------------------------------------------------------------
*
* TkMacWindowOffset --
*
* Determines the x and y offset from the orgin of the toplevel
* window dressing (the structure region, ie. title bar) and the
* orgin of the content area.
*
* Results:
* The x & y offset in pixels.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
TkMacWindowOffset(
WindowRef wRef,
int *xOffset,
int *yOffset)
{
OSErr err = noErr;
WindowPeek wPeek = (WindowPeek) wRef;
RgnHandle strucRgn = wPeek->strucRgn;
RgnHandle contRgn = wPeek->contRgn;
Rect strucRect, contRect;
if (!EmptyRgn(strucRgn) && !EmptyRgn(contRgn)) {
strucRect = (**strucRgn).rgnBBox;
contRect = (**contRgn).rgnBBox;
} else {
/*
* The current window's regions are not up to date.
* Probably because the window isn't visable. What we
* will do is save the old regions, have the window calculate
* what the regions should be, and then restore it self.
*/
strucRgn = NewRgn( );
contRgn = NewRgn( );
if (!strucRgn || !contRgn) {
err = MemError( );
} else {
CopyRgn(wPeek->strucRgn, strucRgn);
CopyRgn(wPeek->contRgn, contRgn);
if (!(err = TellWindowDefProcToCalcRegions(wRef))) {
strucRect = (**(wPeek->strucRgn)).rgnBBox;
contRect = (**(wPeek->contRgn)).rgnBBox;
}
CopyRgn(strucRgn, wPeek->strucRgn);
CopyRgn(contRgn, wPeek->contRgn);
}
if (contRgn) {
DisposeRgn(contRgn);
}
if (strucRgn) {
DisposeRgn(strucRgn);
}
}
if (!err) {
*xOffset = contRect.left - strucRect.left;
*yOffset = contRect.top - strucRect.top;
} else {
*xOffset = 0;
*yOffset = 0;
}
return;
}
/*
*----------------------------------------------------------------------
*
* TellWindowDefProcToCalcRegions --
*
* Force a Macintosh window to recalculate it's content and
* structure regions.
*
* Results:
* An OS error.
*
* Side effects:
* The windows content and structure regions may be updated.
*
*----------------------------------------------------------------------
*/
static OSErr
TellWindowDefProcToCalcRegions(
WindowRef wRef)
{
OSErr err = noErr;
SInt8 hState;
Handle wdef = ((WindowPeek) wRef)->windowDefProc;
/*
* Load and lock the window definition procedure for
* the window.
*/
hState = HGetState(wdef);
if (!(err = MemError())) {
LoadResource(wdef);
if (!(err = ResError())) {
MoveHHi(wdef);
err = MemError();
if (err == memLockedErr) {
err = noErr;
} else if (!err) {
HLock(wdef);
err = MemError();
}
}
}
/*
* Assuming there are no errors we now call the window definition
* procedure to tell it to calculate the regions for the window.
*/
if (err == noErr) {
(void) CallWindowDefProc((UniversalProcPtr) *wdef,
GetWVariant(wRef), wRef, wCalcRgns, 0);
HSetState(wdef, hState);
if (!err) {
err = MemError();
}
}
return err;
}
/*
*----------------------------------------------------------------------
*
* BringWindowForward --
*
* Bring this background window to the front. We also set state
* so Tk thinks the button is currently up.
*
* Results:
* None.
*
* Side effects:
* The window is brought forward.
*
*----------------------------------------------------------------------
*/
static void
BringWindowForward(
WindowRef wRef)
{
SelectWindow(wRef);
}
/*
*----------------------------------------------------------------------
*
* TkpGetMS --
*
* Return a relative time in milliseconds. It doesn't matter
* when the epoch was.
*
* Results:
* Number of milliseconds.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
unsigned long
TkpGetMS()
{
long long * int64Ptr;
UnsignedWide micros;
Microseconds(µs);
int64Ptr = (long long *) µs;
/*
* We need 64 bit math to do this. This is available in CW 11
* and on. Other's will need to use a different scheme.
*/
*int64Ptr /= 1000;
return (long) *int64Ptr;
}
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