pagequery1.cpp

一个英国人写的GIS查看/编辑工具。支持标准的shapefile地图文件格式和coverage地图文件格式。同时可以编辑相应的dbf文件。

      {                     
         // Retrieve selections at this level
      
         if (hLast == NULL) 
         {
            hItem = m_ctrlTree.GetChildItem(hItem);
         } else
         {
            hItem = m_ctrlTree.GetNextSiblingItem(hItem);
         };            
         ASSERT(hItem != NULL);

         s = m_ctrlTree.GetItemText(hItem);
         bCheck = m_ctrlTree.GetCheck(hItem);
         pElement->SetSelected(bCheck);      

      // If a feature type then move one level down and exit

         if (pElement->GetDataType() == BDFTYPE)
         {
            RetrieveSelections((CQuery*)pElement, hItem);
            break;
         }          

         // If a link type then add links to tree

         if (pElement->GetDataType() == BDLINK ||
            pElement->GetDataType() == BDFEATURE ||
            pElement->GetDataType() == BDBOOLEAN)
         {         
            RetrieveLinkSel((CQueryLink*)pElement, hItem);
         }

         hLast = hItem;      

         // Get next query and skip statistics

         pElement = pElement->GetNextQuery();
         while (pElement != NULL && 
                pElement->GetDataType() == BDQUERYSTATS)
         { 
            pElement = pElement->GetNextQuery();
         }
      };
   };
}

///////////////////////////////////////////////////////////////////////////////

void CPageQuery1::RetrieveLinkSel(CQueryLink* pLink, HTREEITEM hParent)
{
   HTREEITEM hItem = m_ctrlTree.GetChildItem(hParent);

   for (int i = 0; i < pLink->m_aFeatures.GetSize(); i++)
   {
      ASSERT(hItem != NULL);
      BOOL bCheck = m_ctrlTree.GetCheck(hItem);
      pLink->m_aFeatures[i].SetSelected(bCheck);
      hItem = m_ctrlTree.GetNextSiblingItem(hItem);
   }
}

///////////////////////////////////////////////////////////////////////////////

void CPageQuery1::OnSelchangedElements(NMHDR* pNMHDR, LRESULT* pResult) 
{
   NM_TREEVIEW* pNMTreeView = (NM_TREEVIEW*)pNMHDR;
   CQueryElement* pElement = NULL;
	   	
	*pResult = 0;
}

///////////////////////////////////////////////////////////////////////////////
//
// Retrieves the element corresponding to the hItem
//

CQueryElement* CPageQuery1::GetElement(CQuery* pQuery, HTREEITEM hItemSel, HTREEITEM hItem)
{
   CQueryElement* pElement = pQuery;
   HTREEITEM hLast = NULL;   
   
   if (hItem == TVI_ROOT) hItem = m_ctrlTree.GetChildItem(hItem);      
         
   pElement = pElement->GetNextQuery();
   while (pElement != NULL)
   {           
      // Retrieve selections at this level
      
      if (hLast == NULL) 
      {
         hItem = m_ctrlTree.GetChildItem(hItem);
      } else
      {
         hItem = m_ctrlTree.GetNextSiblingItem(hItem);
      };            
      ASSERT(hItem != NULL);      

    // Required item found

      if (hItem == hItemSel)       
      {
         return pElement;
      }

   // If a feature type then move one level down and exit

      if (pElement->GetDataType() == BDFTYPE)
      {
         return GetElement((CQuery*)pElement, hItemSel, hItem);         
      }                

      hLast = hItem;      

      pElement = pElement->GetNextQuery();

      while (pElement != NULL && 
             pElement->GetDataType() == BDQUERYSTATS)
      {
         pElement = pElement->GetNextQuery();
      }
   };

   return NULL;
}

///////////////////////////////////////////////////////////////////////////////

void CPageQuery1::OnDictionary() 
{
   m_cbFType.OnClickDictionary();	
}

///////////////////////////////////////////////////////////////////////////////

BOOL CPageQuery1::OnSetActive() 
{
#ifdef BDQUERYWIZARD
   CWnd* pParent = GetParent();
	CPropertySheet* pSheet = DYNAMIC_DOWNCAST(CPropertySheet, pParent);
   pSheet->SetWizardButtons(PSWIZB_NEXT);   
#endif
	
	return CPropertyPage::OnSetActive();
}

///////////////////////////////////////////////////////////////////////////////

BOOL CPageQuery1::OnKillActive() 
{   
   if (m_cbFType.GetCurSel() == CB_ERR) return TRUE;

// Retrieve selections
   
   RetrieveSelections(m_pQuery);
   m_cbFType.SaveFTypes();         
   
   // Validate that one map attribute is selected

   int nMapLines = 0, nCoord = 0;
   int nImages = 0;
   int nDate = 0;
   m_nNumber = 0;

   CQueryElement* pElement = m_pQuery;
   while (pElement != NULL)
   {
      if (pElement->GetSelected())
      {
         if (pElement->GetDataType() == BDMAPLINES) nMapLines++;
         if (pElement->GetDataType() == BDCOORD) nCoord++;         
         if (pElement->GetDataType() == BDIMAGE) nImages++;

         if (pElement->GetDataType() == BDNUMBER) m_nNumber++;         
      };

      if (pElement->GetDataType() == BDDATE && m_nType == CSheetQuery::TSGraph)
      {
         pElement->SetSelected(TRUE);
      }
      pElement = pElement->GetNextQuery();
   }

   if (m_nType == CSheetQuery::Map && nMapLines + nCoord + nImages != 1)
   {
      AfxMessageBox(BDString(IDS_SELMAPOBJ));
      return 0;
   }   

   // Include the number of numeric attributes

   BOOL bStats = FALSE;
   pElement = m_pQuery;
   while (pElement != NULL)
   {
      if (pElement->GetDataType() == BDQUERYSTATS || pElement->GetGroupStat() != CQueryElement::none)
      {         
         bStats = TRUE;
         break;
      }      
      pElement = pElement->GetNextQuery();
   }  
   
   // Check that one numeric attribute is selected

   if ((m_nType == CSheetQuery::HistGraph || m_nType == CSheetQuery::TSGraph || m_nType == CSheetQuery::PieChart) && 
       m_nNumber == 0 && !bStats)
   {
      if (AfxMessageBox(BDString(IDS_NONUMSEL), MB_OKCANCEL) == IDOK)   
      {
          return FALSE;
      };
   }
	
	return CPropertyPage::OnKillActive();
}

///////////////////////////////////////////////////////////////////////////////

void CPageQuery1::OnOK() 
{   
   // Okay, can exit

   *m_pQueryPrev = *m_pQuery;      	  	
	CPropertyPage::OnOK();
}

///////////////////////////////////////////////////////////////////////////////

void CPageQuery1::OnMouseMove(UINT nFlags, CPoint point) 
{
   int nMapLines = 0, nCoord = 0;
   int nNum = 0, nText = 0, nDate = 0;

   //Set up the tooltip       
   if (!m_pTooltip)       
   {    
      int rt;
      m_pTooltip = new CToolTipCtrl;         
      rt = m_pTooltip->Create(this);
      ASSERT(rt!=0);

      BDToolTip() = m_pTooltip;
      
      rt = m_pTooltip->AddTool(&m_ctrlTree,BDString(IDS_ATTRIBUTESTIP));
      ASSERT(rt!=0);          

      m_pTooltip->Activate(TRUE);       
   }

   // Update the tooltip message according to what is selected

   if (m_pTooltip)       
   {
      RetrieveSelections(m_pQuery);      
      CQueryElement* pElement = m_pQuery;
      while (pElement != NULL)
      {
         if (pElement->GetSelected())
         {
            if (pElement->GetDataType() == BDMAPLINES) nMapLines++;
            else if (pElement->GetDataType() == BDCOORD) nCoord++;
            else if (pElement->GetDataType() == BDNUMBER) nNum++;
            else if (pElement->GetDataType() == BDDATE) nDate++;
            else nText++;
         };
         pElement = pElement->GetNextQuery();
      }               

      // Display tooltips for maps

      if (m_nType == CSheetQuery::Map)
      {
         if (nMapLines > 1 || nCoord > 1 || (nMapLines > 0 && nCoord > 0))
         {
            m_pTooltip->UpdateTipText(BDString(IDS_SELMAPOBJ),&m_ctrlTree);                  
         }
         else if (nCoord == 1 && nNum == 0 && nText == 0)
         {
            m_pTooltip->UpdateTipText(BDString(IDS_SELNUMTEXT), &m_ctrlTree);         
         } 
         else if (nMapLines == 1 && nNum == 0)
         {
            m_pTooltip->UpdateTipText(BDString(IDS_SELNUMTEXT), &m_ctrlTree);             
         }      
         else if (nMapLines == 0 && nCoord == 0)
         {
            m_pTooltip->UpdateTipText(BDString(IDS_SELMAPOBJ), &m_ctrlTree);                  
         } else
         {
            m_pTooltip->UpdateTipText("",&m_ctrlTree);                  
         }

         // Display tooltips for time-series graphs

      } else if (m_nType == CSheetQuery::TSGraph)
      {
         if (nNum == 0)
         {
            m_pTooltip->UpdateTipText(BDString(IDS_NONUMSEL), &m_ctrlTree);       
         } else
         {
            m_pTooltip->UpdateTipText("", &m_ctrlTree);       
         }
      }
      // Display tool tips for histogram graphs

      else if (m_nType == CSheetQuery::HistGraph)
      {
         if (nNum == 0)
         {
            m_pTooltip->UpdateTipText(BDString(IDS_NONUMSEL), &m_ctrlTree);       
         } else if (nText == 0)
         {
            m_pTooltip->UpdateTipText(BDString(IDS_SELTEXT), &m_ctrlTree);       
         } else
         {
            m_pTooltip->UpdateTipText("", &m_ctrlTree);       
         }
      }
   }
   

	
	CPropertyPage::OnMouseMove(nFlags, point);
}

///////////////////////////////////////////////////////////////////////////////
//
// void CPageQuery1::PostNcDestroy() 
//

void CPageQuery1::PostNcDestroy() 
{
   BDHwndDialog() = NULL;
   BDToolTip() = NULL;
	
	CPropertyPage::PostNcDestroy();
}