diff options
Diffstat (limited to 'area_darwin.go')
| -rw-r--r-- | area_darwin.go | 136 |
1 files changed, 132 insertions, 4 deletions
diff --git a/area_darwin.go b/area_darwin.go index 50f43a3..c5c3845 100644 --- a/area_darwin.go +++ b/area_darwin.go @@ -13,7 +13,10 @@ import ( //// #include <HIToolbox/Events.h> // #include "objc_darwin.h" // extern void areaView_drawRect(id, struct xrect); -// extern BOOL areaView_isFlipped(id, SEL); +// extern BOOL areaView_isFlipped_acceptsFirstResponder(id, SEL); +// extern void areaView_mouseMoved(id, SEL, id); +// extern void areaView_mouseDown_mouseDragged(id, SEL, id); +// extern void areaView_mouseUp(id, SEL, id); import "C" const ( @@ -25,8 +28,27 @@ var ( _drawRect = sel_getUid("drawRect:") _isFlipped = sel_getUid("isFlipped") + _acceptsFirstResponder = sel_getUid("acceptsFirstResponder") ) +// uintptr due to a bug; see https://code.google.com/p/go/issues/detail?id=7665 +type eventMethod struct { + sel string + m uintptr +} +var eventMethods = []eventMethod{ + eventMethod{"mouseMoved:", uintptr(C.areaView_mouseMoved)}, + eventMethod{"mouseDown:", uintptr(C.areaView_mouseDown_mouseDragged)}, + eventMethod{"mouseDragged:", uintptr(C.areaView_mouseDown_mouseDragged)}, + eventMethod{"mouseUp:", uintptr(C.areaView_mouseUp)}, + eventMethod{"rightMouseDown:", uintptr(C.areaView_mouseDown_mouseDragged)}, + eventMethod{"rightMouseDragged:", uintptr(C.areaView_mouseDown_mouseDragged)}, + eventMethod{"rightMouseUp:", uintptr(C.areaView_mouseUp)}, + eventMethod{"otherMouseDown:", uintptr(C.areaView_mouseDown_mouseDragged)}, + eventMethod{"otherMouseDragged:", uintptr(C.areaView_mouseDown_mouseDragged)}, + eventMethod{"otherMouseUp:", uintptr(C.areaView_mouseUp)}, +} + func mkAreaClass() error { areaclass, err := makeAreaClass(__goArea) if err != nil { @@ -39,10 +61,22 @@ func mkAreaClass() error { } // TODO rename this function (it overrides anyway) err = addDelegateMethod(areaclass, _isFlipped, - C.areaView_isFlipped, area_boolret) + C.areaView_isFlipped_acceptsFirstResponder, area_boolret) if err != nil { return fmt.Errorf("error overriding Area isFlipped method: %v", err) } + err = addDelegateMethod(areaclass, _acceptsFirstResponder, + C.areaView_isFlipped_acceptsFirstResponder, area_boolret) + if err != nil { + return fmt.Errorf("error overriding Area acceptsFirstResponder method: %v", err) + } + for _, m := range eventMethods { + err = addDelegateMethod(areaclass, sel_getUid(m.sel), + unsafe.Pointer(m.m), delegate_void) + if err != nil { + return fmt.Errorf("error overriding Area %s method: %v", m.sel, err) + } + } _goArea = objc_getClass(__goArea) return nil } @@ -69,11 +103,105 @@ func areaView_drawRect(self C.id, rect C.struct_xrect) { C.int64_t(cliprect.Min.X), C.int64_t(cliprect.Min.Y)) } -//export areaView_isFlipped -func areaView_isFlipped(self C.id, sel C.SEL) C.BOOL { +//export areaView_isFlipped_acceptsFirstResponder +func areaView_isFlipped_acceptsFirstResponder(self C.id, sel C.SEL) C.BOOL { + // yes use the same function for both methods since they're just going to return YES anyway + // isFlipped gives us a coordinate system with (0,0) at the top-left + // acceptsFirstResponder lets us respond to events return C.BOOL(C.YES) } +var ( + _modifierFlags = sel_getUid("modifierFlags") + _buttonNumber = sel_getUid("buttonNumber") + _clickCount = sel_getUid("clickCount") +) + +func parseModifiers(e C.id) (m Modifiers) { + const ( + _NSShiftKeyMask = 1 << 17 + _NSControlKeyMask = 1 << 18 + _NSAlternateKeyMask = 1 << 19 + _NSCommandKeyMask = 1 << 20 + ) + + mods := uintptr(C.objc_msgSend_uintret_noargs(e, _modifierFlags)) + if (mods & _NSShiftKeyMask) != 0 { + m |= Shift + } + if (mods & _NSControlKeyMask) != 0 { + // TODO + } + if (mods & _NSAlternateKeyMask) != 0 { + m |= Alt + } + if (mods & _NSCommandKeyMask) != 0 { + m |= Ctrl + } + return m +} + +func areaMouseEvent(self C.id, e C.id, click bool, up bool) { + var me MouseEvent + + s := getSysData(self) + xp := C.getTranslatedEventPoint(self, e) + me.Pos = image.Pt(int(xp.x), int(xp.y)) + me.Modifiers = parseModifiers(e) + which := uint(C.objc_msgSend_intret_noargs(e, _buttonNumber)) + 1 + if which == 3 { // swap middle and right button numbers + which = 2 + } else if which == 2 { + which = 3 + } + if click && up { + me.Up = which + } else if click { + me.Down = which + me.Count = uint(C.objc_msgSend_intret_noargs(e, _clickCount)) + } else { + which = 0 // reset for Held processing below + } + held := C.objc_msgSend_uintret_noargs(e, _clickCount) + if which != 1 && (held & 1) != 0 { // button 1 + me.Held = append(me.Held, 1) + } + if which != 2 && (held & 4) != 0 { // button 2; mind the swap + me.Held = append(me.Held, 2) + } + if which != 3 && (held & 2) != 0 { // button 3 + me.Held = append(me.Held, 3) + } + // TODO remove this part? + held >>= 3 + for i := uint(4); held != 0; i++ { + if which != i && (held & 1) != 0 { + me.Held = append(me.Held, i) + } + held >>= 1 + } + repaint := s.handler.Mouse(me) + if repaint { + C.objc_msgSend_noargs(self, _display) + } +} + +//export areaView_mouseMoved +func areaView_mouseMoved(self C.id, sel C.SEL, e C.id) { + // TODO not triggered? + areaMouseEvent(self, e, false, false) +} + +//export areaView_mouseDown_mouseDragged +func areaView_mouseDown_mouseDragged(self C.id, sel C.SEL, e C.id) { + areaMouseEvent(self, e, true, false) +} + +//export areaView_mouseUp +func areaView_mouseUp(self C.id, sel C.SEL, e C.id) { + areaMouseEvent(self, e, true, true) +} + // TODO combine these with the listbox functions? func newAreaScrollView(area C.id) C.id { |