0

我在用:

class ISearchFuncs :
    public Osp::Ui::IActionEventListener
    , public Osp::Ui::ITextEventListener
    , public Osp::Ui::IScrollPanelEventListener {
public:
    virtual result CloseOverlayKeyb() = 0;
    virtual result InitiateSearch() = 0;
};

但是当我尝试通过将指针传递给回调/事件来连接到这些接口时,ISearchFuncs无法运行。然而,在实际实现它们的类中使用这些接口进行连接没有这样的问题。我可以忍受这一点,但如果我能深入了解这个问题,那将是更好的封装。

class Form1 :
    public Osp::Ui::Controls::Form
    , public ISearchFuncs
//  , public Osp::Ui::IActionEventListener// see below
//  , Osp::Ui::ITextEventListener//deleted due to ambiguity
    {

这是如何使它工作的:

    EditField *pSearchEditField = new EditField;
    TryCatch(E_SUCCESS == (r = pSearchEditField->Construct(Rectangle(labelRect.x + labelRect.width / 6, labelRect.y, 7 * labelRect.width / 12, 80)
                        , EDIT_FIELD_STYLE_NORMAL, INPUT_STYLE_OVERLAY, false, 100, GROUP_STYLE_MIDDLE)),, GetErrorMessage(r));
    pSearchEditField->AddTextEventListener(*this);
    pSearchEditField->AddScrollPanelEventListener(*this);
    pSearchEditField->AddActionEventListener(*this);
    TryCatch(E_SUCCESS == (r = pSearchEditField->SetOverlayKeypadCommandButton(COMMAND_BUTTON_POSITION_LEFT,
            L"Done", SearchPanel::ID_BUTTON_SEARCH_EDITFIELD_DONE)),, "");
    TryCatch(E_SUCCESS == (r = pSearchEditField->SetOverlayKeypadCommandButton(COMMAND_BUTTON_POSITION_RIGHT,
            L"Cancel", SearchPanel::ID_BUTTON_SEARCH_EDITFIELD_CANCEL)),, "");
    __pScrollPanel->AddControl(*pSearchEditField);

而传递给另一个类以执行等效操作无法在运行时连接事件:

    __pSearchPanel->Construct(labelRect, this, __pScrollPanel);

调用:

result SearchPanel::Construct(const Rectangle &rect, ISearchFuncs *pListener, ScrollPanel *pScrollPare) {
    result r = E_SUCCESS;
    int x1 = rect.width / 6;
    int x2 = rect.width * 3 / 4;
    int y1 = rect.height / 3;

    EditField *pSearchEditField = new EditField;
    TryCatch(E_SUCCESS == (r = pSearchEditField->Construct(Rectangle(rect.x + x1, rect.y, x2 - x1, y1)
            , EDIT_FIELD_STYLE_NORMAL, INPUT_STYLE_OVERLAY, false, 100, GROUP_STYLE_MIDDLE)),, GetErrorMessage(r));
    pSearchEditField->AddTextEventListener(*pListener);
    pSearchEditField->AddScrollPanelEventListener(*pListener);
    pSearchEditField->AddActionEventListener(*pListener);
    TryCatch(E_SUCCESS == (r = pSearchEditField->SetOverlayKeypadCommandButton(COMMAND_BUTTON_POSITION_LEFT,
            L"Done", SearchPanel::ID_BUTTON_SEARCH_EDITFIELD_DONE)),, "");
    TryCatch(E_SUCCESS == (r = pSearchEditField->SetOverlayKeypadCommandButton(COMMAND_BUTTON_POSITION_RIGHT,
            L"Cancel", SearchPanel::ID_BUTTON_SEARCH_EDITFIELD_CANCEL)),, "");
    TryCatch(E_SUCCESS == (r = pScrollPare->AddControl(*pSearchEditField)),, "");

抱歉代码重复,但这让我发疯。

我试图遵循的成语是bada SDK's help 的一部分

4

2 回答 2

0

似乎Osp::Ui::IActionEventListener, Osp::Ui::ITextEventListenerOsp::Ui::IScrollPanelEventListener都源自一个共同的基础。您需要使用virtual继承来避免常见的基类。

class ISearchFuncs :
    public virtual Osp::Ui::IActionEventListener
    , public virtual Osp::Ui::ITextEventListener
    , public virtual Osp::Ui::IScrollPanelEventListener 
{
public:
  virtual result CloseOverlayKeyb() = 0;
  virtual result InitiateSearch() = 0;
};
于 2012-03-06T14:16:34.663 回答
-1

在被迫接受我在问题中概述的黑客之后,由于使用存根 IIRC 覆盖了方法,我遇到了一些错误。

我 90% 确定这不是引发我的问题的异常的原因,但 100% 确定它比 pmr 的答案更相关。

于 2012-03-18T22:14:57.713 回答