duilib_多标签_可移动标签_浏览器

CTagLayoutUI::CTagLayoutUI() { ZeroMemory(&m_rtEmptyPlace,sizeof(m_rtEmptyPlace)); } CTagMoveUI::CTagMoveUI() :m_bIsLButtonDowning(false) ,m_nLButtonDownCX(0) ,m_nLButtonDownCY(0) ,m_nStepLen(1) ,m_bIsMoving(false) ,m_isDragged(false) ,m_nEndPos(-1) { ZeroMemory(&m_rcTargetRect,sizeof(m_rcTargetRect)); ZeroMemory(&m_rcOldRect,sizeof(m_rcOldRect)); ZeroMemory(&m_rcCurrentRect,sizeof(m_rcCurrentRect)); } void CTagMoveUI::DoEvent( TEventUI& event ) { if( event.Type == UIEVENT_BUTTONDOWN ) { if( ::PtInRect(&m_rcItem, event.ptMouse) && IsEnabled() ) { if(m_bIsMoving == false) { m_bIsLButtonDowning = true; m_nLButtonDownCX = event.ptMouse.x - m_rcItem.left; m_nLButtonDownCY = event.ptMouse.y - m_rcItem.top; CTagLayoutUI* pParentContainer = static_cast<CTagLayoutUI*>(GetParent()); if (pParentContainer) { pParentContainer->SetEmptyPlaceRect(m_rcItem); pParentContainer->IntItemsOldRect(this); } } } return ; } if( event.Type == UIEVENT_MOUSEMOVE ) { if (m_bIsLButtonDowning) { CTagLayoutUI* pParentContainer = static_cast<CTagLayoutUI*>(GetParent()); if (pParentContainer) { RECT rtParent = pParentContainer->GetPos(); RECT rect = m_rcItem; rect.left = event.ptMouse.x - m_nLButtonDownCX; rect.right = rect.left + (m_rcItem.right - m_rcItem.left); //超出rtParent的范围 if(rect.left < (rtParent.left - (m_rcItem.right - m_rcItem.left)/3) || rect.right > rtParent.right + (m_rcItem.right - m_rcItem.left)/3) return; SetPos(rect); int nCount = pParentContainer->GetCount() - 1; for (int i=0; i< nCount; i++) { CTagMoveUI* pNext = static_cast<CTagMoveUI*>( pParentContainer->GetItemAt(i)); if (!pNext) continue; RECT rt = pNext->GetOldRect(); int mid1 = rt.left + (rt.right-rt.left)/2; int mid2 = m_rcItem.left + (m_rcItem.right-m_rcItem.left)/2; if((m_rcItem.right > mid1 && mid2 < mid1) ||(m_rcItem.left < mid1 && mid2 > mid1)) { RECT oldEmptyRect = pParentContainer->GetEmptyPlaceRect(); RECT tempRect = oldEmptyRect; SetOldRect(rt); pNext->SetOldRect(oldEmptyRect); pNext->SetTargetRect(tempRect); pParentContainer->SetEmptyPlaceRect(rt); Invalidate(); break; } } } } else{ if( ::PtInRect(&m_rcItem, event.ptMouse) ) m_uButtonState |= UISTATE_PUSHED; else m_uButtonState &= ~UISTATE_PUSHED; } return; } if( event.Type == UIEVENT_BUTTONUP ) { if (m_bIsLButtonDowning) { m_bIsLButtonDowning = false; CTagLayoutUI* pParentContainer = static_cast<CTagLayoutUI*>(GetParent()); if (pParentContainer) { int nCount = pParentContainer->GetCount(); for (int i=0; i < nCount; i++) { CTagMoveUI* pNext = static_cast<CTagMoveUI*>( pParentContainer->GetItemAt(i)); if (!pNext) continue; RECT rt = pNext->GetOldRect(); if (rt.right > m_rcItem.right) { m_nEndPos = i; break; } } } if(m_rcItem.left != m_rcOldRect.left) { m_isDragged = true; SetTargetRect(m_rcOldRect); } } return; } if( event.Type == UIEVENT_TIMER && event.wParam == ID_MOVE_TIMER ) { m_rcCurrentRect.left += m_nStepLen; m_rcCurrentRect.right += m_nStepLen; if ((m_nStepLen < 0 && m_rcCurrentRect.left <= m_rcTargetRect.left) ||(m_nStepLen > 0 && m_rcCurrentRect.left >= m_rcTargetRect.left)) { m_rcCurrentRect = m_rcTargetRect; ZeroMemory(&m_rcTargetRect,sizeof(m_rcTargetRect)); m_pManager->KillTimer(this, ID_MOVE_TIMER); m_bIsMoving = false; if(m_isDragged && m_nEndPos != -1) { CTagLayoutUI* pParentContainer = static_cast<CTagLayoutUI*>(GetParent()); if (pParentContainer) pParentContainer->SetItemIndexNoRedraw(this, m_nEndPos); m_isDragged = false; m_nEndPos = -1; } } SetPos(m_rcCurrentRect); Invalidate(); return; } CHorizontalLayoutUI::DoEvent(event); } void CTagMoveUI::SetTargetRect( RECT rect ) { //不需要移动 //if((m_bIsMoving == false) && (rect.left == m_rcItem.left)) // return; //正在移动 m_bIsMoving = true; if(rect.left == m_rcTargetRect.left) return; m_rcTargetRect = rect; m_rcCurrentRect = m_rcItem; int nStepLen = (m_rcTargetRect.left - m_rcCurrentRect.left)/10; if (nStepLen == 0) m_nStepLen = m_rcTargetRect.left - m_rcCurrentRect.left; else m_nStepLen = nStepLen; m_pManager->SetTimer(this, ID_MOVE_TIMER, 30U); } RECT CTagMoveUI::GetTargetRect() { return m_rcTargetRect; }