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// 13 may 2014
#include "objc_darwin.h"
#include "area_darwin.h"
#include "_cgo_export.h"
#include <AppKit/NSView.h>
#include <AppKit/NSTrackingArea.h>
#include <Foundation/NSGeometry.h>
#include <AppKit/NSEvent.h>
#define to(T, x) ((T *) (x))
#define toNSEvent(x) to(NSEvent, (x))
#define toAreaView(x) to(areaView, (x))
#define toNSInteger(x) ((NSInteger) (x))
#define fromNSInteger(x) ((intptr_t) (x))
#define toNSUInteger(x) ((NSUInteger) (x))
#define fromNSUInteger(x) ((uintptr_t) (x))
@interface areaView : NSView {
NSTrackingArea *trackingArea;
}
@end
@implementation areaView
- (id)initWithFrame:(NSRect)r
{
self = [super initWithFrame:r];
if (self)
[self retrack];
// TODO other properties?
return self;
}
- (void)drawRect:(NSRect)cliprect
{
struct xrect rect;
rect.x = (intptr_t) cliprect.origin.x;
rect.y = (intptr_t) cliprect.origin.y;
rect.width = (intptr_t) cliprect.size.width;
rect.height = (intptr_t) cliprect.size.height;
areaView_drawRect(self, rect);
}
- (BOOL)isFlipped
{
return YES;
}
- (BOOL)acceptsFirstResponder
{
return YES;
}
- (void)retrack
{
trackingArea = [[NSTrackingArea alloc]
initWithRect:[self bounds]
// this bit mask (except for NSTrackingInVisibleRect, which was added later to prevent events from being triggered outside the visible area of the Area) comes from https://github.com/andlabs/misctestprogs/blob/master/cocoaviewmousetest.m (and I wrote this bit mask on 25 april 2014) and yes I know it includes enter/exit even though we don't watch those events; it probably won't really matter anyway but if it does I can change it easily
options:(NSTrackingMouseEnteredAndExited | NSTrackingMouseMoved | NSTrackingActiveAlways | NSTrackingEnabledDuringMouseDrag | NSTrackingInVisibleRect)
owner:self
userInfo:nil];
[self addTrackingArea:trackingArea];
}
- (void)updateTrackingAreas
{
[self removeTrackingArea:trackingArea];
[trackingArea release];
[self retrack];
}
#define mouseEvent(m, f) \
- (void)m:(NSEvent *)e \
{ \
f(self, e); \
}
mouseEvent(mouseMoved, areaView_mouseMoved_mouseDragged)
mouseEvent(mouseDragged, areaView_mouseMoved_mouseDragged)
mouseEvent(rightMouseDragged, areaView_mouseMoved_mouseDragged)
mouseEvent(otherMouseDragged, areaView_mouseMoved_mouseDragged)
mouseEvent(mouseDown, areaView_mouseDown)
mouseEvent(rightMouseDown, areaView_mouseDown)
mouseEvent(otherMouseDown, areaView_mouseDown)
mouseEvent(mouseUp, areaView_mouseUp)
mouseEvent(rightMouseUp, areaView_mouseUp)
mouseEvent(otherMouseUp, areaView_mouseUp)
#define keyEvent(m, f) \
- (void)m:(NSEvent *)e \
{ \
if (f(self, e) == NO) \
[super m:e]; \
}
keyEvent(keyDown, areaView_keyDown)
keyEvent(keyUp, areaView_keyUp)
keyEvent(flagsChanged, areaView_flagsChanged)
@end
id makeArea(void)
{
return [[areaView alloc]
initWithFrame:NSMakeRect(0, 0, 100, 100)];
}
uintptr_t modifierFlags(id e)
{
return fromNSUInteger([toNSEvent(e) modifierFlags]);
}
struct xpoint getTranslatedEventPoint(id area, id e)
{
NSPoint p;
struct xpoint q;
p = [toAreaView(area) convertPoint:[toNSEvent(e) locationInWindow] fromView:nil];
q.x = (intptr_t) p.x;
q.y = (intptr_t) p.y;
return q;
}
intptr_t buttonNumber(id e)
{
return fromNSInteger([toNSEvent(e) buttonNumber]);
}
intptr_t clickCount(id e)
{
return fromNSInteger([toNSEvent(e) clickCount]);
}
uintptr_t pressedMouseButtons(void)
{
return fromNSUInteger([NSEvent pressedMouseButtons]);
}
uintptr_t keyCode(id e)
{
return (uintptr_t) ([toNSEvent(e) keyCode]);
}
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