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QSelObjManager.cpp
资源名称：QGIS.rar　[点击查看]
上传用户：oybseng
上传日期：2015-04-27
资源大小：7831k
文件大小：8k
源码类别：

GDI/图象编程

开发平台：

Visual C++

QSelObjManager.cpp：源码内容
  1. // QSelObjManager.cpp: implementation of the CQSelObjManager class.
  2. //
  3. //////////////////////////////////////////////////////////////////////
  5. #include "..stdafx.h"
  6. #include "..includeResource.h"
  7. #include "..includeQSelObjManager.h"
  8. #include "..includeQBaseObj.h"
  9. #include "..includeQCoordSys.h"
  11. #ifdef _DEBUG
  12. #undef THIS_FILE
  13. static char THIS_FILE[]=__FILE__;
  14. #define new DEBUG_NEW
  15. #endif
  17. //////////////////////////////////////////////////////////////////////
  18. // Construction/Destruction
  19. //////////////////////////////////////////////////////////////////////
  21. CQSelObjManager::CQSelObjManager()
  22. {
  23. m_nSelLineNum = 0;
  24. m_nSelPointNum  = 0;
  25. m_nSelLabelNum = 0;
  26. m_pCurObj = NULL;
  27. m_nFlashColorIndex = 0;
  28. m_crFlashColor[0] = RGB(255,0,0);
  29. m_crFlashColor[1] = RGB(0,0,255);
  30. }
  32. CQSelObjManager::~CQSelObjManager()
  33. {
  34. m_pCurObj = 0;
  35. }
  37. void CQSelObjManager::AddSelObj(CQBaseObj * pObj)
  38. {
  39. if(!pObj || pObj->GetObjSeleted()) return;
  41. //效率的优化
  42. int nObjcount = GetSelObjCount();
  43. int i=0;
  44. if(nObjcount>0)
  45. {
  46. POSITION pos = GetHeadPosition();
  47. while (pos)
  48. {
  49. CQBaseObj * ppObj = GetNext(pos);
  50. if(ppObj->GetObjID() == pObj->GetObjID())
  51. break;
  52. else
  53. ++i;
  54. }
  55. }
  56. if(i>=nObjcount)
  57. {
  58. pObj->SetObjSelected(TRUE);
  59. //这里要添加代码防止同一个对象被选中两次
  60. CObList::AddTail(pObj); // 从尾部添加对象
  62. //还没有添加其他对象 暂时只有点和线两个对象
  63. switch(pObj->GetObjType())
  64. {
  65. case QGIS_OBJ_POINT:
  66. m_nSelPointNum++;
  67. break;
  68. case QGIS_OBJ_LINE:
  69. m_nSelLineNum++;
  70. break;
  71. case QGIS_OBJ_LABEL:
  72. m_nSelLabelNum++;
  73. break;
  74. default:
  75. break;
  76. }
  77. m_pCurObj = pObj;
  78. }
  79. }
  81. void CQSelObjManager::RemoveSelObj(CQBaseObj * pObj)
  82. {
  83. if(!pObj)return;
  85. int nCount = GetSelObjCount(); //获取选中对象的数量
  86. for(int i=0;i<nCount;i++)
  87. {
  88. POSITION pos = FindIndex(i);
  89. CQBaseObj * p = (CQBaseObj *)GetAt(pos);
  90. if(p->GetObjMapID() == pObj->GetObjMapID() && p->GetObjID() == pObj->GetObjID())
  91. {
  92. CObList::RemoveAt(pos);
  93. pObj->SetObjSelected(FALSE);
  95. switch(pObj->GetObjType())
  96. {
  97. case QGIS_OBJ_POINT:
  98. m_nSelPointNum--;
  99. break;
  100. case QGIS_OBJ_LINE:
  101. m_nSelLineNum--;
  102.     break;
  103. default:
  104.     break;
  105. }
  106. break;
  107. }
  109. if(m_pCurObj && pObj->GetObjID() == m_pCurObj->GetObjID())
  110. {
  111. if(GetSelObjCount()>0)
  112. {
  113. m_pCurObj = GetHead();
  114. }
  115. else
  116. {
  117. m_pCurObj = NULL;
  118. }
  119. }
  120. }
  121. }
  123. inline int CQSelObjManager::GetSelObjCount()
  124. {
  125. return CObList::GetCount();
  126. }
  128. void CQSelObjManager::RemoveAllSelObj()
  129. {
  130. if(GetCount() == 0)return;
  131. POSITION pos = CObList::GetHeadPosition();
  132. while(pos)
  133. {
  134. //将所有选中图元的选中状态设置为假
  135. ((CQBaseObj *)CObList::GetNext(pos))->SetObjSelected(FALSE);
  136. }
  137. CObList::RemoveAll();
  138. m_pCurObj = NULL;
  139. m_nSelPointNum = 0;
  140. m_nSelLineNum = 0;
  141. }
  143. void CQSelObjManager::DisplaySelObjs(CQCoordSys * pSys,CDC * pDC)
  144. {
  145. POSITION pos = CObList::GetHeadPosition();
  147. while(pos)
  148. {
  149. CQBaseObj * pObj = (CQBaseObj *)CObList::GetNext(pos);
  150. if(pObj)
  151. {
  152. COLORREF cr = m_crFlashColor[m_nFlashColorIndex];
  153. pObj->Display(pSys,pDC,R2_COPYPEN,2,&cr);
  154. }
  155. }
  156. }
  158. void CQSelObjManager::ResetSelObj(CQBaseObj * pObj)
  159. {
  160. RemoveAllSelObj();
  161. m_pCurObj = 0;
  162. if(!pObj) return;
  163. AddSelObj(pObj);
  164. m_pCurObj = pObj;
  165. }
  167. void CQSelObjManager::SetCurSelObj(CQBaseObj * pObj)
  168. {
  169. if(!pObj)
  170. {
  171. m_pCurObj = NULL;
  172. return;
  173. }
  175. BOOL bOk = FALSE;
  177. POSITION pos = CObList::GetHeadPosition();
  178. while (pos)
  179. {
  180. CQBaseObj * p = (CQBaseObj *)CObList::GetNext(pos);
  181. if(p)
  182. {
  183. if(p->GetObjID() == pObj->GetObjID())
  184. {
  185. bOk = TRUE;
  186. m_pCurObj = pObj;
  187. return;
  188. }
  189. }
  190. }
  192. if(!bOk)
  193. {
  194. AddSelObj(pObj);
  195. m_pCurObj = pObj;
  196. }
  197. }
  199. CQBaseObj * CQSelObjManager::GetCurSelObj()
  200. {
  201. if(m_pCurObj)
  202. return m_pCurObj;
  203. return NULL;
  204. }
  206. int CQSelObjManager::FindSelObjIndex(CQBaseObj * pObj)
  207. {
  208. if(!pObj)return-1;
  210. int i = 0;
  211. POSITION pos = CObList::GetHeadPosition();
  212. while(pos)
  213. {
  214. CQBaseObj * p = (CQBaseObj *)CObList::GetNext(pos);
  215. if(p->GetObjID() == pObj->GetObjID())
  216. {
  217. return i;
  218. }
  219. i++;
  220. }
  222. return -1;
  223. }
  225. void CQSelObjManager::BeginFlash(CWnd *pWnd,UINT_PTR uEventID,UINT uTime)
  226. {
  227. if(pWnd) //假如当前窗口存在
  228. {
  229. pWnd->SetTimer(uEventID,uTime,NULL);
  230. }
  231. }
  233. void CQSelObjManager::FlashObj(CQCoordSys *pCoorSys,CWnd *pWnd)
  234. {
  235. CDC * pDC = pWnd->GetDC();
  236. if(pWnd)
  237. {
  238. DisplaySelObjs(pCoorSys,pDC);
  239. m_nFlashColorIndex = !m_nFlashColorIndex; // 换颜色
  240. }
  242. pWnd->ReleaseDC(pDC);
  243. }
  245. void CQSelObjManager::EndFlash(CWnd * pWnd,UINT_PTR uEventID)
  246. {
  247. if(pWnd)
  248. {
  249. pWnd->KillTimer(uEventID);
  250. ResetSelObj(NULL);
  251. }
  252. }
  254. void CQSelObjManager::StopFlash(CWnd * pWnd,UINT_PTR uEventID)
  255. {
  256. if(pWnd)
  257. {
  258. pWnd->KillTimer(uEventID);
  259. }
  260. }
  262. void CQSelObjManager::GetFlashColor(COLORREF cr[2])
  263. {
  264. memcpy(cr,m_crFlashColor,sizeof(COLORREF)*2);  //内存拷贝
  265. }
  267. COLORREF CQSelObjManager::GetFlashColor(int nFlashColorIndex)
  268. {
  269. return m_crFlashColor[nFlashColorIndex];
  270. }
  272. COLORREF CQSelObjManager::GetFlashColor()
  273. {
  274. return m_crFlashColor[m_nFlashColorIndex]; 
  275. }
  277. void CQSelObjManager::SetFlashColor(COLORREF crArr[2])
  278. {
  279. m_crFlashColor[0] = crArr[0];
  280. m_crFlashColor[1] = crArr[1];
  281. }
  283. inline POSITION CQSelObjManager::GetHeadPosition()
  284. {
  285. return CObList::GetHeadPosition();
  286. }
  288. inline CQBaseObj * CQSelObjManager::GetNext(POSITION & pos)
  289. {
  290. return (CQBaseObj *)CObList::GetNext(pos);
  291. }
  294. inline POSITION CQSelObjManager::FindIndex(int lIndex)
  295. {
  296. return CObList::FindIndex(lIndex);
  297. }
  299. inline CQBaseObj * CQSelObjManager::GetAt(POSITION & pos)
  300. {
  301. return (CQBaseObj *)CObList::GetAt(pos);
  302. }
  304. inline CQBaseObj * CQSelObjManager::GetHead()
  305. {
  306. return (CQBaseObj *)CObList::GetHead();
  307. }
  309. inline CQBaseObj * CQSelObjManager::GetTail()
  310. {
  311. return (CQBaseObj *)CObList::GetTail();
  312. }
  314. inline void CQSelObjManager::RemoveAt(POSITION & pos)
  315. {
  316. CQBaseObj * pObj = GetAt(pos);
  317. if(!pObj) return;
  319. switch(pObj->GetObjType())
  320. {
  321. case QGIS_OBJ_POINT:
  322. m_nSelPointNum--;
  323. break;
  324. case QGIS_OBJ_LINE:
  325. m_nSelLineNum--;
  326.     break;
  327. default:
  328.     break;
  329. }
  331. if(m_pCurObj && m_pCurObj->GetObjID() == pObj->GetObjID())
  332. {
  333. if(GetSelObjCount()>0)
  334. {
  335. m_pCurObj = GetHead();
  336. }
  337. else
  338. {
  339. m_pCurObj = 0;
  340. }
  341. }
  342. CObList::RemoveAt(pos);
  343. }
  345. inline int CQSelObjManager::GetCount() const
  346. {
  347. return CObList::GetCount();
  348. }
  350. inline void CQSelObjManager::Copy(CObList * pList)
  351. {
  352. if(!pList)return;
  354. CObList::RemoveAll();
  355. CObList::AddTail(pList);
  357. if(GetSelObjCount()>0)
  358. {
  359. m_pCurObj = GetHead();
  360. }
  361. else
  362. {
  363. m_pCurObj = 0;
  364. }
  366. POSITION pos = GetHeadPosition();
  367. while (pos)
  368. {
  369. CQBaseObj * pObj = GetNext(pos);
  370. if(!pObj)return;
  371. pObj->SetObjSelected(TRUE);
  372. switch(pObj->GetObjType())
  373. {
  374. case QGIS_OBJ_POINT:
  375. m_nSelPointNum++;
  376. break;
  377. case QGIS_OBJ_LINE:
  378. m_nSelLineNum++;
  379.     break;
  380. default:
  381.     break;
  382. }
  383. }
  384. }
  386. void CQSelObjManager::GetBoundingRect(CBoundaryRect & bRect)
  387. {
  388. if(GetCount()<=0)return;
  389. CBoundaryRect rectTemp,rcResult;
  391. GetHead()->GetBoundingRect(&rectTemp);
  392. rcResult.Union(&rectTemp);
  393. POSITION pos = GetHeadPosition();
  394. while (pos)
  395. {
  396. CQBaseObj * pObj = GetNext(pos);
  397. if(!pObj)return;
  398. pObj->GetBoundingRect(&rectTemp);
  399. rcResult.Union(&rectTemp);
  400. }
  401. bRect = rcResult;
  402. }
  404. void CQSelObjManager::GetScreenRect(CQCoordSys *pCoorSys,CRect &rect)
  405. {
  406. CBoundaryRect bRect;
  407. GetBoundingRect(bRect);
  408. pCoorSys->WPtoLP(bRect,&rect);
  409. rect.left -= 2;
  410. rect.top -= 2;
  411. rect.right += 2;
  412. rect.bottom += 2;
  413. }
  415. void CQSelObjManager::BeginFlash(HWND pWnd,UINT_PTR uEventID,UINT uTime)
  416. {
  417. if(pWnd)
  418. ::SetTimer(pWnd,uEventID,uTime,NULL);
  419. }
  421. void CQSelObjManager::FlashObj(CQCoordSys *pCoorSys,HWND pWnd)
  422. {
  423. if(pWnd)
  424. {
  425. CDC * pDC = new CDC();
  426. HDC hDC = ::GetDC(pWnd);
  427. pDC->Attach(hDC);
  428. DisplaySelObjs(pCoorSys,pDC);
  429. hDC = pDC->Detach();
  430. ::ReleaseDC(pWnd,hDC);
  431. delete pDC;
  432. m_nFlashColorIndex=!m_nFlashColorIndex;
  433. }
  434. }
  436. //结束图元的闪烁显示
  437. void CQSelObjManager::EndFlash(HWND pWnd,UINT_PTR uEventID)
  438. {
  439. if(pWnd)
  440. {
  441. ::KillTimer(pWnd,uEventID);
  442. ResetSelObj(NULL);
  443. }
  444. }