99 lines
2.3 KiB
Go
99 lines
2.3 KiB
Go
// 29 march 2014
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package ui
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import (
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"fmt"
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"unsafe"
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)
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// #cgo LDFLAGS: -lobjc -framework Foundation -framework AppKit
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// #include <stdlib.h>
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//// #include <HIToolbox/Events.h>
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// #include "objc_darwin.h"
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// extern void areaView_drawRect(id, struct xrect);
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import "C"
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const (
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__goArea = "goArea"
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)
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var (
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_goArea C.id
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_drawRect = sel_getUid("drawRect:")
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)
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func mkAreaClass() error {
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areaclass, err := makeAreaClass(__goArea)
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if err != nil {
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return fmt.Errorf("error creating Area backend class: %v", err)
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}
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// // TODO rename this function (it overrides anyway)
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// addAreaViewDrawMethod() is in bleh_darwin.m
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ok := C.addAreaViewDrawMethod(areaclass)
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if ok != C.BOOL(C.YES) {
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return fmt.Errorf("error overriding Area drawRect: method; reason unknown")
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}
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_goArea = objc_getClass(__goArea)
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return nil
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}
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//export areaView_drawRect
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func areaView_drawRect(self C.id, rect C.struct_xrect) {
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// TODO
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fmt.Println(rect)
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}
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// TODO combine these with the listbox functions?
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func newAreaScrollView(area C.id) C.id {
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scrollview := objc_alloc(_NSScrollView)
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scrollview = objc_msgSend_rect(scrollview, _initWithFrame,
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0, 0, 100, 100)
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C.objc_msgSend_bool(scrollview, _setHasHorizontalScroller, C.BOOL(C.YES))
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C.objc_msgSend_bool(scrollview, _setHasVerticalScroller, C.BOOL(C.YES))
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C.objc_msgSend_bool(scrollview, _setAutohidesScrollers, C.BOOL(C.YES))
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C.objc_msgSend_id(scrollview, _setDocumentView, area)
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return scrollview
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}
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func areaInScrollView(scrollview C.id) C.id {
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return C.objc_msgSend_noargs(scrollview, _documentView)
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}
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func makeArea(parentWindow C.id, alternate bool) C.id {
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area := objc_alloc(_goArea)
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println(area)
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area = objc_msgSend_rect(area, _initWithFrame,
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0, 0, 100, 100)
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println("out")
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// TODO others?
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area = newAreaScrollView(area)
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addControl(parentWindow, area)
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return area
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}
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// TODO combine the below with the delegate stuff
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var (
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_NSView = objc_getClass("NSView")
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_NSView_Class = C.object_getClass(_NSView)
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)
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func makeAreaClass(name string) (C.Class, error) {
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cname := C.CString(name)
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defer C.free(unsafe.Pointer(cname))
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c := C.objc_allocateClassPair(_NSView_Class, cname, 0)
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if c == C.NilClass {
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return C.NilClass, fmt.Errorf("unable to create Objective-C class %s for Area; reason unknown", name)
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}
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C.objc_registerClassPair(c)
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return c, nil
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}
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var (
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// delegate_rect in bleh_darwin.m
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)
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