duilib的list控件的键盘上下键激活并获取子项名失败的bug

来源：互联网发布：java 二维数组初始化编辑：程序博客网时间：2024/05/21 21:01

这个主要是解决在属性列表中，按键盘的上下键获取节点的值出错的问题

duilib的源码

void CListUI::DoEvent(TEventUI& event){    if( !IsMouseEnabled() && event.Type > UIEVENT__MOUSEBEGIN && event.Type < UIEVENT__MOUSEEND ) {        if( m_pParent != NULL ) m_pParent->DoEvent(event);        else CVerticalLayoutUI::DoEvent(event);        return;    }    if( event.Type == UIEVENT_SETFOCUS )     {        m_bFocused = true;        return;    }    if( event.Type == UIEVENT_KILLFOCUS )     {        m_bFocused = false;        return;    }    if( event.Type == UIEVENT_KEYDOWN )    {        if (IsKeyboardEnabled() && IsEnabled()) {            switch( event.chKey ) {            case VK_UP:                SelectItem(FindSelectable(m_iCurSel - 1, false), true);            case VK_DOWN:                SelectItem(FindSelectable(m_iCurSel + 1, true), true);            case VK_PRIOR:                PageUp();            case VK_NEXT:                PageDown();            case VK_HOME:                SelectItem(FindSelectable(0, false), true);            case VK_END:                SelectItem(FindSelectable(GetCount() - 1, true), true);            case VK_RETURN:                if( m_iCurSel != -1 ) GetItemAt(m_iCurSel)->Activate();            }            return;        }    }    if( event.Type == UIEVENT_SCROLLWHEEL )    {        if (IsEnabled()) {            switch( LOWORD(event.wParam) ) {            case SB_LINEUP:                if( m_bScrollSelect ) SelectItem(FindSelectable(m_iCurSel - 1, false), true);                else LineUp();                return;            case SB_LINEDOWN:                if( m_bScrollSelect ) SelectItem(FindSelectable(m_iCurSel + 1, true), true);                else LineDown();                return;            }        }    }    CVerticalLayoutUI::DoEvent(event);}

改进之后

void CListUI::DoEvent(TEventUI& event){    if( !IsMouseEnabled() && event.Type > UIEVENT__MOUSEBEGIN && event.Type < UIEVENT__MOUSEEND ) {        if( m_pParent != NULL ) m_pParent->DoEvent(event);        else CVerticalLayoutUI::DoEvent(event);        return;    }    if( event.Type == UIEVENT_SETFOCUS )     {        m_bFocused = true;        return;    }    if( event.Type == UIEVENT_KILLFOCUS )     {        m_bFocused = false;        return;    }    if( event.Type == UIEVENT_KEYDOWN )    {        if (IsKeyboardEnabled() && IsEnabled()) {            *switch( event.chKey ) {            case VK_UP:                SelectItem(FindSelectable(m_iCurSel - 1, false), true);                if (m_iCurSel != -1) GetItemAt(m_iCurSel)->Activate();                break;            case VK_DOWN:                SelectItem(FindSelectable(m_iCurSel + 1, true), true);                if (m_iCurSel != -1) GetItemAt(m_iCurSel)->Activate();                break;            case VK_PRIOR:                PageUp();                if (m_iCurSel != -1) GetItemAt(m_iCurSel)->Activate();                break;            case VK_NEXT:                PageDown();                if (m_iCurSel != -1) GetItemAt(m_iCurSel)->Activate();                break;            case VK_HOME:                SelectItem(FindSelectable(0, false), true);                if (m_iCurSel != -1) GetItemAt(m_iCurSel)->Activate();                break;            case VK_END:                SelectItem(FindSelectable(GetCount() - 1, true), true);                if (m_iCurSel != -1) GetItemAt(m_iCurSel)->Activate();                break;            case VK_RETURN:                if( m_iCurSel != -1 ) GetItemAt(m_iCurSel)->Activate();                break;*            }            return;        }    }    if( event.Type == UIEVENT_SCROLLWHEEL )    {        if (IsEnabled()) {            switch( LOWORD(event.wParam) ) {            case SB_LINEUP:                if( m_bScrollSelect ) SelectItem(FindSelectable(m_iCurSel - 1, false), true);                else LineUp();                return;            case SB_LINEDOWN:                if( m_bScrollSelect ) SelectItem(FindSelectable(m_iCurSel + 1, true), true);                else LineDown();                return;            }        }    }    CVerticalLayoutUI::DoEvent(event);}

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