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/*
NSEvent.m
The event class
Copyright (C) 1996 Free Software Foundation, Inc.
Author: Scott Christley <scottc@net-community.com>
Date: 1996
This file is part of the GNUstep GUI Library.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
If you are interested in a warranty or support for this source code,
contact Scott Christley <scottc@net-community.com> for more information.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <gnustep/gui/NSEvent.h>
#include <gnustep/gui/NSApplication.h>
@implementation NSEvent
//
// Private methods
//
- (void)setType:(NSEventType)type
{
event_type = type;
}
- (void)setLocation:(NSPoint)location
{
location_point = location;
}
- (void)setFlags:(unsigned int)flags
{
modifier_flags = flags;
}
- (void)setTime:(NSTimeInterval)time
{
event_time = time;
}
- (void)setWindowNum:(int)windowNum
{
window_num = windowNum;
}
- (void)setContext:(NSDPSContext *)context
{
event_context = context;
}
- (void)setMouseEventNumber:(int)eventNum
{
event_data.mouse.event_num = eventNum;
}
- (void)setMouseClick:(int)clickNum
{
event_data.mouse.click = clickNum;
}
- (void)setPressure:(float)pressureValue
{
event_data.mouse.pressure = pressureValue;
}
- (void)setTrackingEventNumber:(int)eventNum
{
event_data.tracking.event_num = eventNum;
}
- (void)setTrackingNumber:(int)trackingNum
{
event_data.tracking.tracking_num = trackingNum;
}
- (void)setUserData:(void *)userData
{
event_data.tracking.user_data = userData;
}
- (void)setRepeat:(BOOL)repeat
{
event_data.key.repeat = repeat;
}
- (void)setCharacters:(NSString *)keys
{
event_data.key.char_keys = keys;
[event_data.key.char_keys retain];
}
- (void)setUnmodifiedCharacters:(NSString *)ukeys
{
event_data.key.unmodified_keys = ukeys;
[event_data.key.unmodified_keys retain];
}
- (void)setKeyCode:(unsigned short)code
{
event_data.key.key_code = code;
}
- (void)setSubType:(short)subType
{
event_data.misc.sub_type = subType;
}
- (void)setData1:(int)data1
{
event_data.misc.data1 = data1;
}
- (void)setData2:(int)data2
{
event_data.misc.data2 = data2;
}
//
// Class methods
//
+ (void)initialize
{
if (self == [NSEvent class])
{
NSLog(@"Initialize NSEvent class\n");
// Initial version
[self setVersion:1];
}
}
//
// Creating NSEvent objects
//
+ (NSEvent *)enterExitEventWithType:(NSEventType)type
location:(NSPoint)location
modifierFlags:(unsigned int)flags
timestamp:(NSTimeInterval)time
windowNumber:(int)windowNum
context:(NSDPSContext *)context
eventNumber:(int)eventNum
trackingNumber:(int)trackingNum
userData:(void *)userData
{
NSEvent *e;
e = [[[NSEvent alloc] init] autorelease];
// Make sure it is one of the right event types
if ((type != NSMouseEntered) && (type != NSMouseExited))
return nil;
// Set the event fields
[e setType:type];
[e setLocation:location];
[e setFlags:flags];
[e setTime:time];
[e setWindowNum:windowNum];
[e setContext:context];
[e setTrackingEventNumber:eventNum];
[e setTrackingNumber:trackingNum];
[e setUserData:userData];
return e;
}
+ (NSEvent *)keyEventWithType:(NSEventType)type
location:(NSPoint)location
modifierFlags:(unsigned int)flags
timestamp:(NSTimeInterval)time
windowNumber:(int)windowNum
context:(NSDPSContext *)context
characters:(NSString *)keys
charactersIgnoringModifiers:(NSString *)ukeys
isARepeat:(BOOL)repeatKey
keyCode:(unsigned short)code
{
NSEvent *e;
e = [[[NSEvent alloc] init] autorelease];
// Make sure it is one of the right event types
if ((type != NSKeyDown) && (type != NSKeyUp))
return nil;
// Set the event fields
[e setType:type];
[e setLocation:location];
[e setFlags:flags];
[e setTime:time];
[e setWindowNum:windowNum];
[e setContext:context];
[e setCharacters:keys];
[e setUnmodifiedCharacters:ukeys];
[e setRepeat:repeatKey];
[e setKeyCode:code];
return e;
}
+ (NSEvent *)mouseEventWithType:(NSEventType)type
location:(NSPoint)location
modifierFlags:(unsigned int)flags
timestamp:(NSTimeInterval)time
windowNumber:(int)windowNum
context:(NSDPSContext *)context
eventNumber:(int)eventNum
clickCount:(int)clickNum
pressure:(float)pressureValue
{
NSEvent *e;
e = [[[NSEvent alloc] init] autorelease];
// Make sure it is one of the right event types
if ((type != NSLeftMouseDown) && (type != NSLeftMouseUp) &&
(type != NSRightMouseDown) && (type != NSRightMouseUp) &&
(type != NSLeftMouseDragged) && (type != NSRightMouseDragged) &&
(type != NSMouseMoved))
return nil;
// Set the event fields
[e setType:type];
[e setLocation:location];
[e setFlags:flags];
[e setTime:time];
[e setWindowNum:windowNum];
[e setContext:context];
[e setMouseEventNumber:eventNum];
[e setMouseClick:clickNum];
[e setPressure:pressureValue];
return e;
}
+ (NSEvent *)otherEventWithType:(NSEventType)type
location:(NSPoint)location
modifierFlags:(unsigned int)flags
timestamp:(NSTimeInterval)time
windowNumber:(int)windowNum
context:(NSDPSContext *)context
subtype:(short)subType
data1:(int)data1
data2:(int)data2
{
NSEvent *e;
e = [[[NSEvent alloc] init] autorelease];
// Make sure it is one of the right event types
if ((type != NSFlagsChanged) && (type != NSCursorUpdate) &&
(type != NSPeriodic))
return nil;
// Set the event fields
[e setType:type];
[e setLocation:location];
[e setFlags:flags];
[e setTime:time];
[e setWindowNum:windowNum];
[e setContext:context];
[e setSubType:subType];
[e setData1:data1];
[e setData2:data2];
return e;
}
//
// Requesting Periodic Events
//
+ (void)startPeriodicEventsAfterDelay:(NSTimeInterval)delaySeconds
withPeriod:(NSTimeInterval)periodSeconds
{}
+ (void)stopPeriodicEvents
{}
//
// Instance methods
//
- (void)dealloc
{
if ((event_type == NSKeyUp) || (event_type == NSKeyDown))
{
[event_data.key.char_keys release];
[event_data.key.unmodified_keys release];
}
[super dealloc];
}
//
// Getting General Event Information
//
- (NSDPSContext *)context
{
return event_context;
}
- (NSPoint)locationInWindow
{
return location_point;
}
- (unsigned int)modifierFlags
{
return modifier_flags;
}
- (NSTimeInterval)timestamp
{
return event_time;
}
- (NSEventType)type
{
return event_type;
}
- (NSWindow *)window
{
NSApplication *theApp = [NSApplication sharedApplication];
return [theApp windowWithWindowNumber:window_num];
}
- (int)windowNumber
{
return window_num;
}
//
// Getting Key Event Information
//
- (NSString *)characters
{
if ((event_type != NSKeyUp) && (event_type != NSKeyDown))
return nil;
return event_data.key.char_keys;
}
- (NSString *)charactersIgnoringModifiers
{
if ((event_type != NSKeyUp) && (event_type != NSKeyDown))
return nil;
return event_data.key.unmodified_keys;
}
- (BOOL)isARepeat
{
if ((event_type != NSKeyUp) && (event_type != NSKeyDown))
return NO;
return event_data.key.repeat;
}
- (unsigned short)keyCode
{
if ((event_type != NSKeyUp) && (event_type != NSKeyDown))
return 0;
return event_data.key.key_code;
}
//
// Getting Mouse Event Information
//
- (int)clickCount
{
// Make sure it is one of the right event types
if ((event_type != NSLeftMouseDown) && (event_type != NSLeftMouseUp) &&
(event_type != NSRightMouseDown) && (event_type != NSRightMouseUp) &&
(event_type != NSLeftMouseDragged) && (event_type != NSRightMouseDragged) &&
(event_type != NSMouseMoved))
return 0;
return event_data.mouse.click;
}
- (int)eventNumber
{
// Make sure it is one of the right event types
if ((event_type != NSLeftMouseDown) && (event_type != NSLeftMouseUp) &&
(event_type != NSRightMouseDown) && (event_type != NSRightMouseUp) &&
(event_type != NSLeftMouseDragged) && (event_type != NSRightMouseDragged) &&
(event_type != NSMouseMoved) &&
(event_type != NSMouseEntered) && (event_type != NSMouseExited))
return 0;
if ((event_type == NSMouseEntered) || (event_type == NSMouseExited))
return event_data.tracking.event_num;
else
return event_data.mouse.event_num;
}
- (float)pressure
{
// Make sure it is one of the right event types
if ((event_type != NSLeftMouseDown) && (event_type != NSLeftMouseUp) &&
(event_type != NSRightMouseDown) && (event_type != NSRightMouseUp) &&
(event_type != NSLeftMouseDragged) && (event_type != NSRightMouseDragged) &&
(event_type != NSMouseMoved))
return 0;
return event_data.mouse.pressure;
}
//
// Getting Tracking Event Information
//
- (int)trackingNumber
{
if ((event_type != NSMouseEntered) && (event_type != NSMouseExited))
return 0;
return event_data.tracking.tracking_num;
}
- (void *)userData
{
if ((event_type != NSMouseEntered) && (event_type != NSMouseExited))
return NULL;
return event_data.tracking.user_data;
}
//
// Getting Information about Specially Defined Events
//
- (int)data1
{
// Make sure it is one of the right event types
if ((event_type != NSFlagsChanged) && (event_type != NSCursorUpdate) &&
(event_type != NSPeriodic))
return 0;
return event_data.misc.data1;
}
- (int)data2
{
// Make sure it is one of the right event types
if ((event_type != NSFlagsChanged) && (event_type != NSCursorUpdate) &&
(event_type != NSPeriodic))
return 0;
return event_data.misc.data2;
}
- (short)subtype
{
// Make sure it is one of the right event types
if ((event_type != NSFlagsChanged) && (event_type != NSCursorUpdate) &&
(event_type != NSPeriodic))
return 0;
return event_data.misc.sub_type;;
}
//
// NSCoding protocol
//
- (void)encodeWithCoder:aCoder
{
[super encodeWithCoder:aCoder];
[aCoder encodeValueOfObjCType: @encode(NSEventType) at: &event_type];
[aCoder encodePoint: location_point];
[aCoder encodeValueOfObjCType: "I" at: &modifier_flags];
[aCoder encodeValueOfObjCType: @encode(NSTimeInterval) at: &event_time];
[aCoder encodeValueOfObjCType: "i" at: &window_num];
// We don't want to encode the context, right?
// DPSContext doesn't conform to NSCoding
//[aCoder encodeObjectReference: event_context withName: @"Context"];
// Encode the event date based upon the event type
switch (event_type)
{
case NSLeftMouseDown:
case NSLeftMouseUp:
case NSRightMouseDown:
case NSRightMouseUp:
case NSMouseMoved:
case NSLeftMouseDragged:
case NSRightMouseDragged:
[aCoder encodeValuesOfObjCTypes: "iif", &event_data.mouse.event_num,
&event_data.mouse.click, &event_data.mouse.pressure];
break;
case NSMouseEntered:
case NSMouseExited:
// Can't do anything with the user_data!?
[aCoder encodeValuesOfObjCTypes: "ii", &event_data.tracking.event_num,
&event_data.tracking.tracking_num];
break;
case NSKeyDown:
case NSKeyUp:
[aCoder encodeValueOfObjCType: @encode(BOOL) at: &event_data.key.repeat];
[aCoder encodeObject: event_data.key.char_keys];
[aCoder encodeObject: event_data.key.unmodified_keys];
[aCoder encodeValueOfObjCType: "S" at: &event_data.key.key_code];
break;
case NSFlagsChanged:
case NSPeriodic:
case NSCursorUpdate:
[aCoder encodeValuesOfObjCTypes: "sii", &event_data.misc.sub_type,
&event_data.misc.data1, &event_data.misc.data2];
break;
}
}
- initWithCoder:aDecoder
{
[super initWithCoder:aDecoder];
[aDecoder decodeValueOfObjCType: @encode(NSEventType) at: &event_type];
location_point = [aDecoder decodePoint];
[aDecoder decodeValueOfObjCType: "I" at: &modifier_flags];
[aDecoder decodeValueOfObjCType: @encode(NSTimeInterval) at: &event_time];
[aDecoder decodeValueOfObjCType: "i" at: &window_num];
// Decode the event date based upon the event type
switch (event_type)
{
case NSLeftMouseDown:
case NSLeftMouseUp:
case NSRightMouseDown:
case NSRightMouseUp:
case NSMouseMoved:
case NSLeftMouseDragged:
case NSRightMouseDragged:
[aDecoder decodeValuesOfObjCTypes: "iif", &event_data.mouse.event_num,
&event_data.mouse.click, &event_data.mouse.pressure];
break;
case NSMouseEntered:
case NSMouseExited:
// Can't do anything with the user_data!?
[aDecoder decodeValuesOfObjCTypes: "ii", &event_data.tracking.event_num,
&event_data.tracking.tracking_num];
break;
case NSKeyDown:
case NSKeyUp:
[aDecoder decodeValueOfObjCType: @encode(BOOL)
at: &event_data.key.repeat];
event_data.key.char_keys = [aDecoder decodeObject];
event_data.key.unmodified_keys = [aDecoder decodeObject];
[aDecoder decodeValueOfObjCType: "S" at: &event_data.key.key_code];
break;
case NSFlagsChanged:
case NSPeriodic:
case NSCursorUpdate:
[aDecoder decodeValuesOfObjCTypes: "sii", &event_data.misc.sub_type,
&event_data.misc.data1, &event_data.misc.data2];
break;
}
return self;
}
@end
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