1 files changed, 138 insertions, 0 deletions
diff --git a/prev/table_darwin.go b/prev/table_darwin.go
new file mode 100644
index 0000000..1bfbe74
--- /dev/null
+++ b/prev/table_darwin.go
@@ -0,0 +1,138 @@
+// 29 july 2014
+
+package ui
+
+import (
+	"fmt"
+	"reflect"
+	"unsafe"
+	"image"
+)
+
+// #include "objc_darwin.h"
+import "C"
+
+type table struct {
+	*tablebase
+
+	*scroller
+
+	selected *event
+}
+
+func finishNewTable(b *tablebase, ty reflect.Type) Table {
+	id := C.newTable()
+	t := &table{
+		scroller:  newScroller(id, true), // border on Table
+		tablebase: b,
+		selected:  newEvent(),
+	}
+	t.fpreferredSize = t.xpreferredSize
+	// also sets the delegate
+	C.tableMakeDataSource(t.id, unsafe.Pointer(t))
+	for i := 0; i < ty.NumField(); i++ {
+		colname := ty.Field(i).Tag.Get("uicolumn")
+		if colname == "" {
+			colname = ty.Field(i).Name
+		}
+		cname := C.CString(colname)
+		coltype := C.colTypeText
+		editable := false
+		switch {
+		case ty.Field(i).Type == reflect.TypeOf((*image.RGBA)(nil)):
+			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) 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))
+}
+
+func (t *table) OnSelected(f func()) {
+	t.selected.set(f)
+}
+
+//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((*image.RGBA)(nil)):
+		*outtype = C.colTypeImage
+		d := datum.Interface().(*image.RGBA)
+		img := C.toTableImage(unsafe.Pointer(pixelData(d)), C.intptr_t(d.Rect.Dx()), C.intptr_t(d.Rect.Dy()), C.intptr_t(d.Stride))
+		return unsafe.Pointer(img)
+	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))
+}
+
+//export tableSelectionChanged
+func tableSelectionChanged(data unsafe.Pointer) {
+	t := (*table)(data)
+	t.selected.fire()
+}
+
+func (t *table) xpreferredSize(d *sizing) (width, height int) {
+	s := C.tablePreferredSize(t.id)
+	return int(s.width), int(s.height)
+}