544 lines
13 KiB
C
544 lines
13 KiB
C
/*
|
||
* tkMacOSXMouseEvent.c --
|
||
*
|
||
* This file implements functions that decode & handle mouse events on
|
||
* MacOS X.
|
||
*
|
||
* Copyright 2001-2009, Apple Inc.
|
||
* Copyright (c) 2005-2009 Daniel A. Steffen <das@users.sourceforge.net>
|
||
*
|
||
* See the file "license.terms" for information on usage and redistribution of
|
||
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
|
||
*/
|
||
|
||
#include "tkMacOSXPrivate.h"
|
||
#include "tkMacOSXWm.h"
|
||
#include "tkMacOSXEvent.h"
|
||
#include "tkMacOSXDebug.h"
|
||
|
||
typedef struct {
|
||
unsigned int state;
|
||
long delta;
|
||
Window window;
|
||
Point global;
|
||
Point local;
|
||
} MouseEventData;
|
||
|
||
static int GenerateButtonEvent(MouseEventData *medPtr);
|
||
static unsigned int ButtonModifiers2State(UInt32 buttonState,
|
||
UInt32 keyModifiers);
|
||
|
||
#pragma mark TKApplication(TKMouseEvent)
|
||
|
||
enum {
|
||
NSWindowWillMoveEventType = 20
|
||
};
|
||
|
||
@implementation TKApplication(TKMouseEvent)
|
||
- (NSEvent *)tkProcessMouseEvent:(NSEvent *)theEvent {
|
||
#ifdef TK_MAC_DEBUG_EVENTS
|
||
TKLog(@"-[%@(%p) %s] %@", [self class], self, _cmd, theEvent);
|
||
#endif
|
||
id win;
|
||
NSEventType type = [theEvent type];
|
||
#if 0
|
||
NSTrackingArea *trackingArea = nil;
|
||
NSInteger eventNumber, clickCount, buttonNumber;
|
||
#endif
|
||
|
||
switch (type) {
|
||
case NSMouseEntered:
|
||
case NSMouseExited:
|
||
case NSCursorUpdate:
|
||
#if 0
|
||
trackingArea = [theEvent trackingArea];
|
||
#endif
|
||
/* fall through */
|
||
case NSLeftMouseDown:
|
||
case NSLeftMouseUp:
|
||
case NSRightMouseDown:
|
||
case NSRightMouseUp:
|
||
case NSOtherMouseDown:
|
||
case NSOtherMouseUp:
|
||
|
||
case NSLeftMouseDragged:
|
||
case NSRightMouseDragged:
|
||
case NSOtherMouseDragged:
|
||
|
||
case NSMouseMoved:
|
||
#if 0
|
||
eventNumber = [theEvent eventNumber];
|
||
if (!trackingArea) {
|
||
clickCount = [theEvent clickCount];
|
||
buttonNumber = [theEvent buttonNumber];
|
||
}
|
||
#endif
|
||
|
||
case NSTabletPoint:
|
||
case NSTabletProximity:
|
||
|
||
case NSScrollWheel:
|
||
win = [self windowWithWindowNumber:[theEvent windowNumber]];
|
||
break;
|
||
|
||
default:
|
||
return theEvent;
|
||
break;
|
||
}
|
||
|
||
NSPoint global, local = [theEvent locationInWindow];
|
||
if (win) {
|
||
global = [win convertBaseToScreen:local];
|
||
local.y = [win frame].size.height - local.y;
|
||
global.y = tkMacOSXZeroScreenHeight - global.y;
|
||
} else {
|
||
local.y = tkMacOSXZeroScreenHeight - local.y;
|
||
global = local;
|
||
}
|
||
|
||
Window window = TkMacOSXGetXWindow(win);
|
||
Tk_Window tkwin = window ? Tk_IdToWindow(TkGetDisplayList()->display,
|
||
window) : NULL;
|
||
if (!tkwin) {
|
||
tkwin = TkMacOSXGetCapture();
|
||
}
|
||
if (!tkwin) {
|
||
return theEvent;
|
||
}
|
||
|
||
/*
|
||
MacDrawable *macWin = (MacDrawable *) window;
|
||
NSView *view = TkMacOSXDrawableView(macWin);
|
||
local = [view convertPoint:local fromView:nil];
|
||
local.y = NSHeight([view bounds]) - local.y;
|
||
*/
|
||
TkWindow *winPtr = (TkWindow *) tkwin;
|
||
local.x -= winPtr->wmInfoPtr->xInParent;
|
||
local.y -= winPtr->wmInfoPtr->yInParent;
|
||
|
||
int win_x, win_y;
|
||
tkwin = Tk_TopCoordsToWindow(tkwin, local.x, local.y,
|
||
&win_x, &win_y);
|
||
|
||
unsigned int state = 0;
|
||
NSInteger button = [theEvent buttonNumber];
|
||
EventRef eventRef = (EventRef)[theEvent eventRef];
|
||
UInt32 buttons;
|
||
OSStatus err = GetEventParameter(eventRef, kEventParamMouseChord,
|
||
typeUInt32, NULL, sizeof(UInt32), NULL, &buttons);
|
||
if (err == noErr) {
|
||
state |= (buttons & ((1<<5) - 1)) << 8;
|
||
} else {
|
||
if (button < 5) {
|
||
switch (type) {
|
||
case NSLeftMouseDown:
|
||
case NSRightMouseDown:
|
||
case NSLeftMouseDragged:
|
||
case NSRightMouseDragged:
|
||
case NSOtherMouseDown:
|
||
state |= 1 << (button + 8);
|
||
break;
|
||
default:
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
NSUInteger modifiers = [theEvent modifierFlags];
|
||
|
||
if (modifiers & NSAlphaShiftKeyMask) {
|
||
state |= LockMask;
|
||
}
|
||
if (modifiers & NSShiftKeyMask) {
|
||
state |= ShiftMask;
|
||
}
|
||
if (modifiers & NSControlKeyMask) {
|
||
state |= ControlMask;
|
||
}
|
||
if (modifiers & NSCommandKeyMask) {
|
||
state |= Mod1Mask; /* command key */
|
||
}
|
||
if (modifiers & NSAlternateKeyMask) {
|
||
state |= Mod2Mask; /* option key */
|
||
}
|
||
if (modifiers & NSNumericPadKeyMask) {
|
||
state |= Mod3Mask;
|
||
}
|
||
if (modifiers & NSFunctionKeyMask) {
|
||
state |= Mod4Mask;
|
||
}
|
||
|
||
if (type != NSScrollWheel) {
|
||
#ifdef TK_MAC_DEBUG_EVENTS
|
||
TKLog(@"UpdatePointer %p x %f.0 y %f.0 %d", tkwin, global.x, global.y, state);
|
||
#endif
|
||
Tk_UpdatePointer(tkwin, global.x, global.y, state);
|
||
} else {
|
||
CGFloat delta;
|
||
int coarseDelta;
|
||
XEvent xEvent;
|
||
|
||
xEvent.type = MouseWheelEvent;
|
||
xEvent.xbutton.x = local.x;
|
||
xEvent.xbutton.y = local.y;
|
||
xEvent.xbutton.x_root = global.x;
|
||
xEvent.xbutton.y_root = global.y;
|
||
xEvent.xany.send_event = false;
|
||
xEvent.xany.display = Tk_Display(tkwin);
|
||
xEvent.xany.window = Tk_WindowId(tkwin);
|
||
|
||
delta = [theEvent deltaY];
|
||
if (delta != 0.0) {
|
||
coarseDelta = (delta > -1.0 && delta < 1.0) ? (signbit(delta) ? -1 : 1) : lround(delta);
|
||
xEvent.xbutton.state = state;
|
||
xEvent.xkey.keycode = coarseDelta;
|
||
xEvent.xany.serial = LastKnownRequestProcessed(Tk_Display(tkwin));
|
||
Tk_QueueWindowEvent(&xEvent, TCL_QUEUE_TAIL);
|
||
}
|
||
delta = [theEvent deltaX];
|
||
if (delta != 0.0) {
|
||
coarseDelta = (delta > -1.0 && delta < 1.0) ? (signbit(delta) ? -1 : 1) : lround(delta);
|
||
xEvent.xbutton.state = state | ShiftMask;
|
||
xEvent.xkey.keycode = coarseDelta;
|
||
xEvent.xany.serial = LastKnownRequestProcessed(Tk_Display(tkwin));
|
||
Tk_QueueWindowEvent(&xEvent, TCL_QUEUE_TAIL);
|
||
}
|
||
}
|
||
|
||
return theEvent;
|
||
}
|
||
@end
|
||
|
||
#pragma mark -
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* TkMacOSXKeyModifiers --
|
||
*
|
||
* Returns the current state of the modifier keys.
|
||
*
|
||
* Results:
|
||
* An OS Modifier state.
|
||
*
|
||
* Side effects:
|
||
* None.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
EventModifiers
|
||
TkMacOSXModifierState(void)
|
||
{
|
||
UInt32 keyModifiers;
|
||
int isFrontProcess = (GetCurrentEvent() && Tk_MacOSXIsAppInFront());
|
||
|
||
keyModifiers = isFrontProcess ? GetCurrentEventKeyModifiers() :
|
||
GetCurrentKeyModifiers();
|
||
|
||
return (EventModifiers) (keyModifiers & USHRT_MAX);
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* TkMacOSXButtonKeyState --
|
||
*
|
||
* 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.
|
||
*
|
||
* Side effects:
|
||
* None.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
unsigned int
|
||
TkMacOSXButtonKeyState(void)
|
||
{
|
||
UInt32 buttonState = 0, keyModifiers;
|
||
int isFrontProcess = (GetCurrentEvent() && Tk_MacOSXIsAppInFront());
|
||
|
||
buttonState = isFrontProcess ? GetCurrentEventButtonState() :
|
||
GetCurrentButtonState();
|
||
keyModifiers = isFrontProcess ? GetCurrentEventKeyModifiers() :
|
||
GetCurrentKeyModifiers();
|
||
|
||
return ButtonModifiers2State(buttonState, keyModifiers);
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* ButtonModifiers2State --
|
||
*
|
||
* Converts Carbon mouse button state and modifier values into a Tk
|
||
* button/modifier state.
|
||
*
|
||
* Results:
|
||
* None.
|
||
*
|
||
* Side effects:
|
||
* None.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static unsigned int
|
||
ButtonModifiers2State(
|
||
UInt32 buttonState,
|
||
UInt32 keyModifiers)
|
||
{
|
||
unsigned int state;
|
||
|
||
/*
|
||
* Tk supports at most 5 buttons.
|
||
*/
|
||
|
||
state = (buttonState & ((1<<5) - 1)) << 8;
|
||
|
||
if (keyModifiers & alphaLock) {
|
||
state |= LockMask;
|
||
}
|
||
if (keyModifiers & shiftKey) {
|
||
state |= ShiftMask;
|
||
}
|
||
if (keyModifiers & controlKey) {
|
||
state |= ControlMask;
|
||
}
|
||
if (keyModifiers & cmdKey) {
|
||
state |= Mod1Mask; /* command key */
|
||
}
|
||
if (keyModifiers & optionKey) {
|
||
state |= Mod2Mask; /* option key */
|
||
}
|
||
if (keyModifiers & kEventKeyModifierNumLockMask) {
|
||
state |= Mod3Mask;
|
||
}
|
||
if (keyModifiers & kEventKeyModifierFnMask) {
|
||
state |= Mod4Mask;
|
||
}
|
||
|
||
return state;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* 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)
|
||
{
|
||
int getGlobal = (root_x_return && root_y_return);
|
||
int getLocal = (win_x_return && win_y_return && w != None);
|
||
|
||
if (getGlobal || getLocal) {
|
||
NSPoint global = [NSEvent mouseLocation];
|
||
|
||
if (getLocal) {
|
||
MacDrawable *macWin = (MacDrawable *) w;
|
||
NSWindow *win = TkMacOSXDrawableWindow(w);
|
||
|
||
if (win) {
|
||
NSPoint local;
|
||
|
||
local = [win convertScreenToBase:global];
|
||
local.y = [win frame].size.height - local.y;
|
||
if (macWin->winPtr && macWin->winPtr->wmInfoPtr) {
|
||
local.x -= macWin->winPtr->wmInfoPtr->xInParent;
|
||
local.y -= macWin->winPtr->wmInfoPtr->yInParent;
|
||
}
|
||
*win_x_return = local.x;
|
||
*win_y_return = local.y;
|
||
}
|
||
}
|
||
if (getGlobal) {
|
||
*root_x_return = global.x;
|
||
*root_y_return = tkMacOSXZeroScreenHeight - global.y;
|
||
}
|
||
}
|
||
if (mask_return) {
|
||
*mask_return = TkMacOSXButtonKeyState();
|
||
}
|
||
return True;
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* TkGenerateButtonEventForXPointer --
|
||
*
|
||
* This procedure generates an X button event for the current pointer
|
||
* state as reported by XQueryPointer().
|
||
*
|
||
* 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.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
MODULE_SCOPE int
|
||
TkGenerateButtonEventForXPointer(
|
||
Window window) /* X Window containing button event. */
|
||
{
|
||
MouseEventData med;
|
||
int global_x, global_y, local_x, local_y;
|
||
|
||
bzero(&med, sizeof(MouseEventData));
|
||
XQueryPointer(NULL, window, NULL, NULL, &global_x, &global_y,
|
||
&local_x, &local_y, &med.state);
|
||
med.global.h = global_x;
|
||
med.global.v = global_y;
|
||
med.local.h = local_x;
|
||
med.local.v = local_y;
|
||
med.window = window;
|
||
|
||
return GenerateButtonEvent(&med);
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* 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. */
|
||
{
|
||
MacDrawable *macWin = (MacDrawable *) window;
|
||
NSWindow *win = TkMacOSXDrawableWindow(window);
|
||
MouseEventData med;
|
||
|
||
bzero(&med, sizeof(MouseEventData));
|
||
med.state = state;
|
||
med.window = window;
|
||
med.global.h = x;
|
||
med.global.v = y;
|
||
med.local = med.global;
|
||
|
||
if (win) {
|
||
NSPoint local = NSMakePoint(x, tkMacOSXZeroScreenHeight - y);
|
||
|
||
local = [win convertScreenToBase:local];
|
||
local.y = [win frame].size.height - local.y;
|
||
if (macWin->winPtr && macWin->winPtr->wmInfoPtr) {
|
||
local.x -= macWin->winPtr->wmInfoPtr->xInParent;
|
||
local.y -= macWin->winPtr->wmInfoPtr->yInParent;
|
||
}
|
||
med.local.h = local.x;
|
||
med.local.v = tkMacOSXZeroScreenHeight - local.y;
|
||
}
|
||
|
||
return GenerateButtonEvent(&med);
|
||
}
|
||
|
||
/*
|
||
*----------------------------------------------------------------------
|
||
*
|
||
* GenerateButtonEvent --
|
||
*
|
||
* Generate an X button event from a MouseEventData structure. 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.
|
||
*
|
||
*----------------------------------------------------------------------
|
||
*/
|
||
|
||
static int
|
||
GenerateButtonEvent(
|
||
MouseEventData *medPtr)
|
||
{
|
||
Tk_Window tkwin;
|
||
int dummy;
|
||
TkDisplay *dispPtr;
|
||
|
||
#if UNUSED
|
||
/*
|
||
* 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.
|
||
*/
|
||
|
||
if ((medPtr->activeNonFloating == NULL)
|
||
|| ((!(TkpIsWindowFloating(medPtr->whichWin))
|
||
&& (medPtr->activeNonFloating != medPtr->whichWin))
|
||
&& TkMacOSXGetCapture() == NULL)) {
|
||
return false;
|
||
}
|
||
#endif
|
||
|
||
dispPtr = TkGetDisplayList();
|
||
tkwin = Tk_IdToWindow(dispPtr->display, medPtr->window);
|
||
|
||
if (tkwin != NULL) {
|
||
tkwin = Tk_TopCoordsToWindow(tkwin, medPtr->local.h, medPtr->local.v,
|
||
&dummy, &dummy);
|
||
}
|
||
|
||
Tk_UpdatePointer(tkwin, medPtr->global.h, medPtr->global.v, medPtr->state);
|
||
return true;
|
||
}
|
||
|
||
/*
|
||
* Local Variables:
|
||
* mode: objc
|
||
* c-basic-offset: 4
|
||
* fill-column: 79
|
||
* coding: utf-8
|
||
* End:
|
||
*/
|