Method SetModel

src/pkg/walk/tableview.go:214–271

SetModel sets the TableModel that provides data to the *TableView.

(model TableModel)

// SetModel sets the TableModel that provides data to the *TableView.
func (tv *TableView) SetModel(model TableModel) os.Error {
	tv.SetSuspended(true)
	defer tv.SetSuspended(false)

	if tv.model != nil {
		for _ = range tv.columns {
			if FALSE == SendMessage(tv.hWnd, LVM_DELETECOLUMN, 0, 0) {
				return newError("SendMessage(LVM_DELETECOLUMN)")
			}
		}

		tv.detachModel()
	}

	tv.model = model

	tv.itemChecker, _ = model.(ItemChecker)

	if model != nil {
		tv.attachModel()

		tv.columns = model.Columns()

		for i, column := range tv.columns {
			if column.Format == "" {
				tv.columns[i].Format = "%v"
			}

			var lvc LVCOLUMN

			lvc.Mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM
			lvc.ISubItem = int32(i)
			lvc.PszText = syscall.StringToUTF16Ptr(column.Title)
			if column.Width > 0 {
				lvc.Cx = int32(column.Width)
			} else {
				lvc.Cx = 100
			}

			switch column.Alignment {
			case AlignCenter:
				lvc.Fmt = 2

			case AlignFar:
				lvc.Fmt = 1
			}

			j := SendMessage(tv.hWnd, LVM_INSERTCOLUMN, uintptr(i), uintptr(unsafe.Pointer(&lvc)))
			if int(j) == -1 {
				return newError("TableView.SetModel: Failed to insert column.")
			}
		}

		return tv.setItemCount()
	}

	return nil
}