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arx 读入块表

news 来源：原创 2024/5/7 12:49:04

BOOL CArxDialog::OnInitDialog(void)
{
   // 创建一个CImageList类的指针变量
   //CImageList* pImageList;
   //pImageList = new CImageList();
   m_ImageList.Create(32, 32, ILC_COLOR32, 0, 4); // 必不可少

CButton * pBut = (CButton* )GetDlgItem(IDC_BUTTON4);
pBut->SetWindowText(_T("GetPoint"));

   CListCtrl *pListCtrl1 = (CListCtrl *) GetDlgItem(IDC_LIST1);
   pListCtrl1->ModifyStyle(0, WS_VISIBLE | WS_CHILD | LVS_REPORT );
   DWORD dwExtStyles1 =pListCtrl1->GetExtendedStyle();
   pListCtrl1->SetExtendedStyle(dwExtStyles1 | LVS_EX_FULLROWSELECT | LVS_EX_GRIDLINES);
   pListCtrl1->InsertColumn(0,_T("名称"),LVCFMT_LEFT,100,0); //设置列

   DisplayBlocks() ;

   CListCtrl *pListCtrl2 = (CListCtrl *) GetDlgItem(IDC_LIST2);
   //pListCtrl2->ModifyStyle(0, WS_VISIBLE | WS_CHILD | LVS_REPORT );
   pListCtrl2->SetIconSpacing(CSize(80,80));
   pListCtrl2->SetImageList(&m_ImageList, LVSIL_NORMAL);

return 0;
}

void CArxDialog::DisplayBlocks(void)
{
CListCtrl *m_ctrlBlockListBox = (CListCtrl *) GetDlgItem(IDC_LIST1);

   AcDbBlockTable *pBlockTable;
   acdbHostApplicationServices()->workingDatabase()
       ->getSymbolTable(pBlockTable, AcDb::kForRead);
   // Iterate through the block table and display
   // the names in the list box.

   ACHAR *pName ;
   AcDbBlockTableIterator *pBTItr;
   if (pBlockTable->newIterator(pBTItr) == Acad::eOk) {
       while (!pBTItr->done()) {

           AcDbBlockTableRecord *pRecord;
           if (pBTItr->getRecord(pRecord, AcDb::kForRead)
               == Acad::eOk)
           {
               pRecord->getName(pName);

               if (pRecord->hasPreviewIcon()) // 如果块定义包含预览图标
               {
                   int nIndex = m_ctrlBlockListBox->GetItemCount();
                   m_ctrlBlockListBox->InsertItem(nIndex, (CString )pName );//插入行

// 显示预览图标
CPaintDC dc(this);

AcDbObjectId blkTblRcdId;
Acad::ErrorStatus es = pBlockTable->getAt( (CString )pName, blkTblRcdId);

HBITMAP hBitmap = BlockIconToBMP(blkTblRcdId, dc.GetSafeHdc());

CStatic *m_bitmap =( CStatic *) GetDlgItem(IDC_STATIC);
m_bitmap->ModifyStyle(0xF,SS_BITMAP|SS_CENTERIMAGE);

                       HBITMAP hBitmap2 = ReplaceColor(hBitmap, RGB(0,0,0),RGB(255,255,255) );
                       m_bitmap->SetBitmap((HBITMAP)hBitmap2);

                       CBitmap bmp;
                       bmp.Attach(hBitmap2);
                       m_ImageList.Add(&bmp, RGB(0, 0, 0));
                       bmp.DeleteObject();
                       //
                       CListCtrl *m_ListCtrl2 = (CListCtrl *) GetDlgItem(IDC_LIST2);

int listindex;
LV_ITEM lvItem;

listindex = m_ListCtrl2->GetItemCount();

TCHAR *ptszText = new TCHAR[100];
_tcscpy(ptszText, (CString )pName);

                       lvItem.mask = LVIF_IMAGE | LVIF_TEXT;
                       lvItem.iItem = listindex ;
                       lvItem.iSubItem = 0;
                       lvItem.iImage = listindex ;
                       lvItem.pszText = ptszText;

                       m_ListCtrl2->InsertItem(&lvItem);
               }

               pRecord->close();

           }
           pBTItr->step();
       }
   }
   pBlockTable->close();
//UpdateData(FALSE);
}

///

HBITMAP CArxDialog::BlockIconToBMP(const AcDbObjectId &blkId, HDC hdc)
{
Acad::ErrorStatus es;
AcDbBlockTableRecord *pBlkTblRcd = NULL; // 块表记录的指针
AcArray<Adesk::UInt8> icon; // 保存预览图标的数组

// 获得保存块表记录的预览图标的数组
try
{
es = acdbOpenObject(pBlkTblRcd, blkId, AcDb::kForRead);
if (es != Acad::eOk)
throw 1;

if (!pBlkTblRcd->hasPreviewIcon()) // 如果块定义不包含预览图标
{
pBlkTblRcd->close();
return NULL;
}

es = pBlkTblRcd->getPreviewIcon(icon);
if (es != Acad::eOk)
throw 2;
es = pBlkTblRcd->close();
if (es != Acad::eOk)
throw 3;
}
catch (...)
{
pBlkTblRcd->close();
return NULL;
}

// 由icon数组获得可显示的位图
BITMAPINFOHEADER ih; // 位图信息头
memcpy(&ih, icon.asArrayPtr(), sizeof(ih));
size_t memsize = sizeof(BITMAPINFOHEADER) + ((1<<ih.biBitCount)* sizeof(RGBQUAD));
LPBITMAPINFO bi = (LPBITMAPINFO)malloc(memsize); // 位图信息
memcpy(bi, icon.asArrayPtr(), memsize);
HBITMAP hbm = CreateDIBitmap(hdc, &ih, CBM_INIT,icon.asArrayPtr() + memsize, bi,DIB_RGB_COLORS);
free(bi);

return hbm;
}

HBITMAP CArxDialog::ReplaceColor(HBITMAP hBmp,COLORREF cOldColor,COLORREF cNewColor)
{
   HBITMAP RetBmp=NULL;
   if (hBmp)
   {
       HDC BufferDC=CreateCompatibleDC(NULL); // 源位图DC
       if (BufferDC)
       {
           SelectObject(BufferDC,hBmp);//选入DC中
           HDC DirectDC=CreateCompatibleDC(NULL); // 目标DC
           if (DirectDC)
           {
               // 获取源位图大小
               BITMAP bm;
               GetObject(hBmp, sizeof(bm), &bm);

               // 初始化BITMAPINFO信息，以便使用CreateDIBSection
               BITMAPINFO RGB32BitsBITMAPINFO;
               ZeroMemory(&RGB32BitsBITMAPINFO,sizeof(BITMAPINFO));
               RGB32BitsBITMAPINFO.bmiHeader.biSize=sizeof(BITMAPINFOHEADER);
               RGB32BitsBITMAPINFO.bmiHeader.biWidth=bm.bmWidth;
               RGB32BitsBITMAPINFO.bmiHeader.biHeight=bm.bmHeight;
               RGB32BitsBITMAPINFO.bmiHeader.biPlanes=1;
               RGB32BitsBITMAPINFO.bmiHeader.biBitCount=32;
               UINT * ptPixels;

               HBITMAP DirectBitmap= CreateDIBSection(DirectDC,
                   (BITMAPINFO *)&RGB32BitsBITMAPINFO,
                   DIB_RGB_COLORS,(void **)&ptPixels, NULL, 0);
               if (DirectBitmap)
               {
                   HGDIOBJ PreviousObject=SelectObject(DirectDC, DirectBitmap);
                   BitBlt(DirectDC,0,0,bm.bmWidth,bm.bmHeight,BufferDC,0,0,SRCCOPY);

                   // 转换 COLORREF 为 RGB
                   cOldColor = COLORREF(cOldColor);
                   cNewColor = COLORREF(cNewColor);

                   //如果背景色是黑色
                   if(ptPixels[0] ==cOldColor)
                   {
                       // 替换颜色
                           for (int i=((bm.bmWidth*bm.bmHeight)-1);i>=0;i--)
                           {
                               if (ptPixels[i]== cOldColor || ptPixels[i]== cNewColor )
                               //颜色取反
                               ptPixels[i] = 0xFFFFFF -ptPixels[i] ;
                           }

}

// 修改位图 DirectBitmap
SelectObject(DirectDC,PreviousObject);

                   // 完成
                   RetBmp=DirectBitmap;
               }
               // 释放DC
               DeleteDC(DirectDC);
           }
           // 释放DC
           DeleteDC(BufferDC);
       }
   }
   return RetBmp;

}

void CArxDialog::OnNMClickList1(NMHDR *pNMHDR, LRESULT *pResult)
{
// TODO: 在此添加控件通知处理程序代码
*pResult = 0;

//单击
NM_LISTVIEW* pNMListView = (NM_LISTVIEW*)pNMHDR;

int nSelected = pNMListView->iItem; //选择所在行的索引值
int nSubItem = pNMListView->iSubItem; //选择所在列的索引值

   CListCtrl *m_ctrlBlockListBox = (CListCtrl *) GetDlgItem(IDC_LIST1);
   CString cr = m_ctrlBlockListBox->GetItemText(nSelected, nSubItem) ;
   //cr.Format(_T("%d-- %d-- %s"),nSelected,nSubItem, m_ctrlBlockListBox->GetItemText(nSelected, nSubItem));
   AfxMessageBox(cr) ;
}