andlabs-ui/redo/table_darwin.go

146 lines
3.3 KiB
Go

// 29 july 2014
package ui
import (
"fmt"
"reflect"
"unsafe"
)
// #include "objc_darwin.h"
import "C"
type table struct {
*tablebase
_id C.id
scroller *scroller
images []C.id
}
func finishNewTable(b *tablebase, ty reflect.Type) Table {
id := C.newTable()
t := &table{
_id: id,
scroller: newScroller(id, true), // border on Table
tablebase: b,
}
C.tableMakeDataSource(t._id, unsafe.Pointer(t))
for i := 0; i < ty.NumField(); i++ {
cname := C.CString(ty.Field(i).Name)
coltype := C.colTypeText
editable := false
switch {
case ty.Field(i).Type == reflect.TypeOf(ImageIndex(0)):
coltype = C.colTypeImage
case ty.Field(i).Type.Kind() == reflect.Bool:
coltype = C.colTypeCheckbox
editable = true
}
C.tableAppendColumn(t._id, C.intptr_t(i), cname, C.int(coltype), toBOOL(editable))
C.free(unsafe.Pointer(cname)) // free now (not deferred) to conserve memory
}
return t
}
func (t *table) Unlock() {
t.unlock()
// there's a possibility that user actions can happen at this point, before the view is updated
// alas, this is something we have to deal with, because Unlock() can be called from any thread
go func() {
Do(func() {
t.RLock()
defer t.RUnlock()
C.tableUpdate(t._id)
})
}()
}
func (t *table) LoadImageList(i ImageList) {
i.apply(&t.images)
}
func (t *table) Selected() int {
t.RLock()
defer t.RUnlock()
return int(C.tableSelected(t._id))
}
func (t *table) Select(index int) {
t.RLock()
defer t.RUnlock()
C.tableSelect(t._id, C.intptr_t(index))
}
//export goTableDataSource_getValue
func goTableDataSource_getValue(data unsafe.Pointer, row C.intptr_t, col C.intptr_t, outtype *C.int) unsafe.Pointer {
t := (*table)(data)
t.RLock()
defer t.RUnlock()
d := reflect.Indirect(reflect.ValueOf(t.data))
datum := d.Index(int(row)).Field(int(col))
switch {
case datum.Type() == reflect.TypeOf(ImageIndex(0)):
*outtype = C.colTypeImage
d := datum.Interface().(ImageIndex)
return unsafe.Pointer(t.images[d])
case datum.Kind() == reflect.Bool:
*outtype = C.colTypeCheckbox
if datum.Bool() == true {
// return a non-nil pointer
// outtype isn't Go-side so it'll work
return unsafe.Pointer(outtype)
}
return nil
default:
s := fmt.Sprintf("%v", datum)
return unsafe.Pointer(C.CString(s))
}
}
//export goTableDataSource_getRowCount
func goTableDataSource_getRowCount(data unsafe.Pointer) C.intptr_t {
t := (*table)(data)
t.RLock()
defer t.RUnlock()
d := reflect.Indirect(reflect.ValueOf(t.data))
return C.intptr_t(d.Len())
}
//export goTableDataSource_toggled
func goTableDataSource_toggled(data unsafe.Pointer, row C.intptr_t, col C.intptr_t, checked C.BOOL) {
t := (*table)(data)
t.Lock()
defer t.Unlock()
d := reflect.Indirect(reflect.ValueOf(t.data))
datum := d.Index(int(row)).Field(int(col))
datum.SetBool(fromBOOL(checked))
}
func (t *table) id() C.id {
return t._id
}
func (t *table) setParent(p *controlParent) {
t.scroller.setParent(p)
}
func (t *table) allocate(x int, y int, width int, height int, d *sizing) []*allocation {
return baseallocate(t, x, y, width, height, d)
}
func (t *table) preferredSize(d *sizing) (width, height int) {
s := C.tablePreferredSize(t._id)
return int(s.width), int(s.height)
}
func (t *table) commitResize(c *allocation, d *sizing) {
t.scroller.commitResize(c, d)
}
func (t *table) getAuxResizeInfo(d *sizing) {
basegetAuxResizeInfo(t, d)
}