libcm is a C development framework with an emphasis on audio signal processing applications.
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  1. #include "cmGlobal.h"
  2. #include "cmFloatTypes.h"
  3. #include "cmRpt.h"
  4. #include "cmErr.h"
  5. #include "cmCtx.h"
  6. #include "cmMem.h"
  7. #include "cmMallocDebug.h"
  8. #include "cmGr.h"
  9. #include "cmGrDevCtx.h"
  10. #include "cmGrPlot.h"
  11. #include "cmVectOpsTemplateMain.h"
  12. //------------------------------------------------------------------------------------------------------------------
  13. //------------------------------------------------------------------------------------------------------------------
  14. //------------------------------------------------------------------------------------------------------------------
  15. //------------------------------------------------------------------------------------------------------------------
  16. struct cmGrPl_str;
  17. typedef struct cmGrPlotObj_str
  18. {
  19. cmGrH_t grH; // the canvas this object is drawn on
  20. cmGrObjH_t grObjH; // the grObj this object is based on
  21. cmGrPlObjTypeId_t typeId;
  22. unsigned cfgFlags;
  23. unsigned stateFlags;
  24. cmGrVExt_t vext;
  25. cmChar_t* label;
  26. unsigned labelFlags;
  27. int labelAngle;
  28. cmGrColor_t labelColor;
  29. int loffs;
  30. int toffs;
  31. int roffs;
  32. int boffs;
  33. cmGrColor_t drawColors[ kMaxPlGrId ];
  34. cmGrColor_t fillColors[ kMaxPlGrId ];
  35. unsigned fontId;
  36. unsigned fontSize;
  37. unsigned fontStyle;
  38. void* userPtr;
  39. unsigned userByteCnt; // 0 if userPtr does not need to be realease on object destruction
  40. cmGrPlotCbFunc_t cbFunc;
  41. void* cbArg;
  42. struct cmGrPl_str* p; // owning plot object manager
  43. struct cmGrPlotObj_str* parent; // containing object
  44. struct cmGrPlotObj_str* xAnchor; // x-location reference object
  45. struct cmGrPlotObj_str* yAnchor; // y-location reference object
  46. struct cmGrPlotObj_str* next;
  47. struct cmGrPlotObj_str* prev;
  48. } cmGrPlotObj_t;
  49. typedef struct cmGrPl_str
  50. {
  51. cmCtx_t* ctx; //
  52. cmErr_t err; //
  53. cmGrPlotObj_t* list; // plot object linked list
  54. cmGrPlotObj_t* fop; // focused object ptr
  55. cmGrPlotCbFunc_t cbFunc; // dflt callback function
  56. void* cbArg; // dflt callback function arg.
  57. } cmGrPl_t;
  58. cmGrPlH_t cmGrPlNullHandle = cmSTATIC_NULL_HANDLE;
  59. cmGrPlObjH_t cmGrPlObjNullHandle = cmSTATIC_NULL_HANDLE;
  60. //------------------------------------------------------------------------------------------------------------------
  61. // Plot Private Functions
  62. //------------------------------------------------------------------------------------------------------------------
  63. cmGrPl_t* _cmGrPlHandleToPtr( cmGrPlH_t h )
  64. {
  65. cmGrPl_t* p = (cmGrPl_t*)h.h;
  66. assert(p!=NULL);
  67. return p;
  68. }
  69. cmGrPlotObj_t* _cmGrPlObjHandleToPtr( cmGrPlObjH_t oh )
  70. {
  71. cmGrPlotObj_t* op = (cmGrPlotObj_t*)oh.h;
  72. assert( op!=NULL);
  73. return op;
  74. }
  75. cmGrPlRC_t _cmGrPlotObjDelete( cmGrPlotObj_t* op )
  76. {
  77. if( op==NULL || cmGrObjIsValid( op->grH, op->grObjH)==false )
  78. return kOkGrPlRC;
  79. cmGrPl_t* p = op->p;
  80. // destroy the cmGrObj - which will call _cmGrPlotObjDestroy()
  81. if( cmGrObjDestroy( op->grH, &op->grObjH ) != kOkGrRC )
  82. return cmErrMsg( &p->err, kGrFailGrPlRC, "Delete failed on the object label='%s' id=%i\n",cmStringNullGuard( op->label ), cmGrObjId(op->grObjH) );
  83. if( op->userByteCnt != 0 )
  84. {
  85. cmMemFree(op->userPtr);
  86. op->userByteCnt = 0;
  87. }
  88. return kOkGrPlRC;
  89. }
  90. void _cmGrPlotObjUnlink( cmGrPlotObj_t* op )
  91. {
  92. cmGrPl_t* p = op->p;
  93. if( op->next != NULL )
  94. op->next->prev = op->prev;
  95. if( op->prev != NULL )
  96. op->prev->next = op->next;
  97. if( p->list == op )
  98. p->list = op->next;
  99. }
  100. void _cmGrPlotObjLink( cmGrPl_t* p, cmGrPlotObj_t* op )
  101. {
  102. if( p->list != NULL )
  103. p->list->prev = op;
  104. op->next = p->list;
  105. op->prev = NULL;
  106. p->list = op;
  107. }
  108. // Destroy all objects
  109. cmGrPlRC_t _cmGrPlotClear( cmGrPl_t* p )
  110. {
  111. cmGrPlRC_t rc = kOkGrPlRC;
  112. cmGrPlotObj_t* op = p->list;
  113. while( op!=NULL )
  114. {
  115. cmGrPlotObj_t* t = op->next;
  116. if((rc = _cmGrPlotObjDelete(op)) != kOkGrPlRC )
  117. break;
  118. op = t;
  119. }
  120. return rc;
  121. }
  122. // Destroy the plot mgr
  123. cmGrPlRC_t _cmGrPlotDestroy( cmGrPl_t* p )
  124. {
  125. cmGrPlRC_t rc;
  126. if((rc = _cmGrPlotClear(p)) != kOkGrPlRC )
  127. return rc;
  128. cmMemFree(p);
  129. return kOkGrPlRC;
  130. }
  131. bool _cmGrPlotObjIsVisible( cmGrPlotObj_t* op )
  132. { return cmIsNotFlag(op->cfgFlags,kNoDrawGrPlFl); }
  133. bool _cmGrPlotObjIsEnabled( cmGrPlotObj_t* op )
  134. {
  135. // invisible objects are never enabled
  136. if( _cmGrPlotObjIsVisible(op) == false )
  137. return false;
  138. return cmIsFlag(op->stateFlags,kEnabledGrPlFl);
  139. }
  140. bool _cmGrPlotObjIsFocused(cmGrPlotObj_t* op)
  141. { return _cmGrPlotObjIsEnabled(op) && op->p->fop==op; }
  142. bool _cmGrPlotObjIsSelected(cmGrPlotObj_t* op)
  143. { return _cmGrPlotObjIsFocused(op) || cmIsFlag(op->stateFlags,kSelectGrPlFl); }
  144. void _cmGrPlotObjSetupCbArg( cmGrPlotCbArg_t* a, cmGrPlotObj_t* op, cmGrPlCbSelId_t selId )
  145. {
  146. cmGrPlObjH_t oH;
  147. oH.h = op;
  148. memset(a,0,sizeof(a));
  149. a->ctx = op->p->ctx;
  150. a->cbArg = op->cbArg;
  151. a->selId = selId;
  152. a->objH = oH;
  153. }
  154. bool _cmGrPlotObjCb( cmGrPlotObj_t* op, cmGrPlCbSelId_t selId, unsigned deltaFlags )
  155. {
  156. if( op->cbFunc != NULL )
  157. {
  158. cmGrPlotCbArg_t a;
  159. _cmGrPlotObjSetupCbArg(&a,op,selId);
  160. a.deltaFlags = deltaFlags;
  161. return op->cbFunc(&a);
  162. }
  163. return true;
  164. }
  165. void _cmGrPlotObjSetFocus( cmGrPlotObj_t* op )
  166. {
  167. // if 'op' is not enabled then it cannot receive the focus
  168. if( _cmGrPlotObjIsEnabled(op) == false )
  169. return;
  170. // if the focus cannot be set on 'op' - then try op->parent
  171. for(; op!=NULL; op=op->parent)
  172. if( cmIsNotFlag(op->cfgFlags,kNoFocusGrPlFl) && cmIsNotFlag(op->cfgFlags,kNoDrawGrPlFl) )
  173. break;
  174. // if the focus is changing to a new object
  175. if( op != NULL && op->p->fop != op )
  176. {
  177. if( op->p->fop != NULL )
  178. {
  179. // if the application callback returns false then do no release focus from the current object
  180. if(_cmGrPlotObjCb(op->p->fop, kPreEventCbSelGrPlId, kFocusGrPlFl ) == false )
  181. return;
  182. cmGrPlotObj_t* fop = op->p->fop;
  183. op->p->fop = NULL;
  184. // notify focus loser
  185. _cmGrPlotObjCb(fop, kStateChangeGrPlId, kFocusGrPlFl );
  186. }
  187. // if the application callback returns false then do not give focus to the selected object
  188. if(_cmGrPlotObjCb(op, kPreEventCbSelGrPlId, kFocusGrPlFl ) == false )
  189. return;
  190. op->p->fop = op;
  191. // notify focus winner
  192. _cmGrPlotObjCb(op, kStateChangeGrPlId, kFocusGrPlFl );
  193. }
  194. }
  195. void _cmGrPlotObjSetSelect( cmGrPlotObj_t* op, bool clearFl )
  196. {
  197. // if the object is disabled or not selectable
  198. if( _cmGrPlotObjIsEnabled(op)==false || cmIsFlag(op->cfgFlags,kNoSelectGrPlFl | kNoDrawGrPlFl) )
  199. return;
  200. unsigned stateFlags = op->stateFlags;
  201. // if the application callback returns false then do change the select state of the object
  202. if(_cmGrPlotObjCb(op, kPreEventCbSelGrPlId, kSelectGrPlFl ) == false )
  203. return;
  204. if( clearFl )
  205. {
  206. cmGrObjH_t parentObjH = cmGrObjParent(op->grObjH);
  207. cmGrPlotObj_t* cop = op->p->list;
  208. // clear the select flag on all objects that share op->parent
  209. for(; cop!=NULL; cop=cop->next)
  210. if( cmHandlesAreEqual(cmGrObjParent(cop->grObjH),parentObjH) )
  211. cop->stateFlags = cmClrFlag(cop->stateFlags,kSelectGrPlFl);
  212. }
  213. op->stateFlags = cmTogFlag(stateFlags,kSelectGrPlFl);
  214. // notify state change
  215. _cmGrPlotObjCb(op, kStateChangeGrPlId, kSelectGrPlFl );
  216. }
  217. const cmGrColor_t _cmGrPlotColor( cmGrPlotObj_t* op, cmGrColor_t* array )
  218. {
  219. if( _cmGrPlotObjIsFocused(op) )
  220. return array[kFocusPlGrId];
  221. if( _cmGrPlotObjIsSelected(op) )
  222. return array[kSelectPlGrId];
  223. if( _cmGrPlotObjIsEnabled(op) )
  224. return array[kEnablePlGrId];
  225. return array[kDisablePlGrId];
  226. }
  227. unsigned _cmGrPlotObjTriShapeToFlags( unsigned typeId)
  228. {
  229. switch(typeId)
  230. {
  231. case kUTriGrPlId: return kTopGrFl;
  232. case kDTriGrPlId: return kBottomGrFl;
  233. case kLTriGrPlId: return kLeftGrFl;
  234. case kRTriGrPlId: return kRightGrFl;
  235. default:
  236. { assert(0); }
  237. }
  238. return 0;
  239. }
  240. //------------------------------------------------------------------------------------------------------------------
  241. // Plot Object Callback Functions
  242. //------------------------------------------------------------------------------------------------------------------
  243. cmGrRC_t _cmGrPlotObjCreate( cmGrObjFuncArgs_t* args )
  244. {
  245. cmGrPlotObj_t* op = args->cbArg;
  246. _cmGrPlotObjCb(op,kCreatedCbSelGrPlId,0);
  247. // return kOkGrRC to indicate that the create was successful
  248. return kOkGrRC;
  249. }
  250. void _cmGrPlotObjDestroy( cmGrObjFuncArgs_t* args )
  251. {
  252. cmGrPlotObj_t* op = args->cbArg;
  253. // TODO: is it possible to prevent destruction by returning
  254. // 'false' from the used defined callback. This feature is
  255. // slightly complicated by the fact
  256. // that in some circumstances the destroy request is not
  257. // optional - for example when the program is closing.
  258. _cmGrPlotObjCb(op,kDestroyedCbSelGrPlId,0);
  259. _cmGrPlotObjUnlink( op );
  260. cmMemFree(op->label);
  261. cmMemFree(op);
  262. }
  263. void _cmGrPlotObjGetVExt( cmGrPlotObj_t* op, cmGrVExt_t* vext )
  264. {
  265. switch( op->typeId )
  266. {
  267. case kStarGrPlId:
  268. case kCrossGrPlId:
  269. case kPlusGrPlId:
  270. case kDiamondGrPlId:
  271. case kUTriGrPlId:
  272. case kDTriGrPlId:
  273. case kLTriGrPlId:
  274. case kRTriGrPlId:
  275. case kRectGrPlId:
  276. case kLineGrPlId:
  277. case kEllipseGrPlId:
  278. {
  279. *vext = op->vext;
  280. }
  281. break;
  282. case kHLineGrPlId:
  283. case kVLineGrPlId:
  284. {
  285. cmGrVExt_t wext;
  286. cmGrObjH_t oh = cmGrObjParent(op->grObjH);
  287. cmGrObjWorldExt(oh,&wext);
  288. // TODO: Put a check somewhere which can report an error
  289. // message when the parents world extent is not yet set.
  290. // Horz and Vert lines depend on the their parent's
  291. // world extents being set first. There is no automatic
  292. // way to set the parent world extents because we don't
  293. // know the range of values which the data set will cover.
  294. // Any number picked could result in a range much to large
  295. // thereby leaving the data invisible. It therefore must
  296. // be up to the application to set a good range.
  297. assert( cmGrVExtIsNotNullOrEmpty(&wext) );
  298. vext->loc.x = op->typeId==kHLineGrPlId ? wext.loc.x : op->vext.loc.x;
  299. vext->loc.y = op->typeId==kVLineGrPlId ? wext.loc.y : op->vext.loc.y;
  300. vext->sz.w = op->typeId==kHLineGrPlId ? wext.sz.w : op->vext.sz.w;
  301. vext->sz.h = op->typeId==kVLineGrPlId ? wext.sz.h : op->vext.sz.h;
  302. }
  303. break;
  304. default:
  305. { assert(0); }
  306. }
  307. // add up the anchor offsets until the first object in the container
  308. cmGrPlotObj_t* ap = op->xAnchor;
  309. for(; ap!=NULL; ap=ap->xAnchor)
  310. {
  311. vext->loc.x += ap->vext.loc.x;
  312. if( ap->xAnchor==ap->parent)
  313. break;
  314. }
  315. ap = op->yAnchor;
  316. for(; ap!=NULL; ap=ap->yAnchor)
  317. {
  318. vext->loc.y += ap->vext.loc.y;
  319. if( ap->yAnchor==ap->parent)
  320. break;
  321. }
  322. }
  323. void _cmGrPlotObjVExt( cmGrObjFuncArgs_t* args, cmGrVExt_t* vext )
  324. {
  325. cmGrPlotObj_t* op = args->cbArg;
  326. _cmGrPlotObjGetVExt(op, vext);
  327. }
  328. bool _cmGrPlotObjRender( cmGrObjFuncArgs_t* args, cmGrDcH_t dcH )
  329. {
  330. cmGrPlotObj_t* op = args->cbArg;
  331. cmGrPExt_t pext;
  332. cmGrVExt_t vext;
  333. if( !_cmGrPlotObjIsVisible(op) )
  334. return false;
  335. // get the virtual extents of this object
  336. _cmGrPlotObjVExt( args, &vext );
  337. // convert the virtual ext's to phys ext's
  338. cmGrVExt_VtoP( op->grH, op->grObjH, &vext, &pext);
  339. // expand the ext's according to the physical offsets
  340. cmGrPExtExpand(&pext,op->loffs,op->toffs,op->roffs,op->boffs);
  341. switch( op->typeId )
  342. {
  343. case kLineGrPlId:
  344. //cmGrDcSetColor( dcH, _cmGrPlotColor(op,op->drawColors) );
  345. //cmGrDcDrawLine( dcH, cmGrPExtL(&pext), cmGrPExtT(&pext), cmGrPExtR(&pext), cmGrPExtB(&pext) );
  346. //break;
  347. case kStarGrPlId:
  348. case kCrossGrPlId:
  349. case kPlusGrPlId:
  350. case kEllipseGrPlId:
  351. case kDiamondGrPlId:
  352. case kUTriGrPlId:
  353. case kDTriGrPlId:
  354. case kLTriGrPlId:
  355. case kRTriGrPlId:
  356. case kRectGrPlId:
  357. case kHLineGrPlId:
  358. case kVLineGrPlId:
  359. {
  360. if( cmIsNotFlag(op->cfgFlags,kNoFillGrPlFl) )
  361. {
  362. // set the fill color
  363. cmGrDcSetColor( dcH, _cmGrPlotColor(op,op->fillColors) );
  364. // draw the fill
  365. switch(op->typeId)
  366. {
  367. case kEllipseGrPlId:
  368. cmGrDcFillEllipse( dcH, pext.loc.x, pext.loc.y, pext.sz.w, pext.sz.h);
  369. break;
  370. case kDiamondGrPlId:
  371. cmGrDcFillDiamond( dcH, pext.loc.x, pext.loc.y, pext.sz.w, pext.sz.h);
  372. break;
  373. case kUTriGrPlId:
  374. case kDTriGrPlId:
  375. case kLTriGrPlId:
  376. case kRTriGrPlId:
  377. cmGrDcFillTriangle( dcH, pext.loc.x, pext.loc.y, pext.sz.w, pext.sz.h, _cmGrPlotObjTriShapeToFlags(op->typeId));
  378. break;
  379. case kStarGrPlId:
  380. case kCrossGrPlId:
  381. case kPlusGrPlId:
  382. case kRectGrPlId:
  383. case kHLineGrPlId:
  384. case kVLineGrPlId:
  385. cmGrDcFillRect( dcH, pext.loc.x, pext.loc.y, pext.sz.w, pext.sz.h);
  386. break;
  387. case kLineGrPlId:
  388. break;
  389. default:
  390. { assert(0); }
  391. }
  392. }
  393. if( cmIsNotFlag(op->cfgFlags,kNoBorderGrPlFl) )
  394. {
  395. // set the border color
  396. cmGrDcSetColor( dcH, _cmGrPlotColor(op,op->drawColors) );
  397. // draw the border
  398. switch(op->typeId)
  399. {
  400. case kEllipseGrPlId:
  401. cmGrDcDrawEllipse( dcH, pext.loc.x, pext.loc.y, pext.sz.w, pext.sz.h);
  402. break;
  403. case kDiamondGrPlId:
  404. cmGrDcDrawDiamond( dcH, pext.loc.x, pext.loc.y, pext.sz.w, pext.sz.h);
  405. break;
  406. case kUTriGrPlId:
  407. case kDTriGrPlId:
  408. case kLTriGrPlId:
  409. case kRTriGrPlId:
  410. cmGrDcDrawTriangle( dcH, pext.loc.x, pext.loc.y, pext.sz.w, pext.sz.h, _cmGrPlotObjTriShapeToFlags(op->typeId));
  411. break;
  412. case kStarGrPlId:
  413. cmGrDcDrawLine( dcH, cmGrPExtL(&pext), cmGrPExtT(&pext), cmGrPExtR(&pext), cmGrPExtB(&pext));
  414. cmGrDcDrawLine( dcH, cmGrPExtL(&pext), cmGrPExtB(&pext), cmGrPExtR(&pext), cmGrPExtT(&pext));
  415. cmGrDcDrawLine( dcH, cmGrPExtL(&pext) + cmGrPExtW(&pext)/2, cmGrPExtT(&pext), cmGrPExtL(&pext) + cmGrPExtW(&pext)/2, cmGrPExtB(&pext));
  416. cmGrDcDrawLine( dcH, cmGrPExtL(&pext), cmGrPExtT(&pext) + cmGrPExtH(&pext)/2, cmGrPExtR(&pext), cmGrPExtT(&pext) + cmGrPExtH(&pext)/2);
  417. break;
  418. case kCrossGrPlId:
  419. cmGrDcDrawLine( dcH, cmGrPExtL(&pext), cmGrPExtT(&pext), cmGrPExtR(&pext), cmGrPExtB(&pext));
  420. cmGrDcDrawLine( dcH, cmGrPExtR(&pext), cmGrPExtT(&pext), cmGrPExtL(&pext), cmGrPExtB(&pext));
  421. break;
  422. case kPlusGrPlId:
  423. cmGrDcDrawLine( dcH, cmGrPExtL(&pext) + cmGrPExtW(&pext)/2, cmGrPExtT(&pext), cmGrPExtL(&pext) + cmGrPExtW(&pext)/2, cmGrPExtB(&pext));
  424. cmGrDcDrawLine( dcH, cmGrPExtL(&pext), cmGrPExtT(&pext) + cmGrPExtH(&pext)/2, cmGrPExtR(&pext), cmGrPExtT(&pext) + cmGrPExtH(&pext)/2);
  425. break;
  426. case kLineGrPlId:
  427. cmGrDcDrawLine( dcH, cmGrPExtL(&pext), cmGrPExtT(&pext), cmGrPExtR(&pext), cmGrPExtB(&pext) );
  428. break;
  429. case kRectGrPlId:
  430. case kHLineGrPlId:
  431. case kVLineGrPlId:
  432. cmGrDcDrawRect( dcH, pext.loc.x, pext.loc.y, pext.sz.w, pext.sz.h);
  433. break;
  434. default:
  435. { assert(0); }
  436. }
  437. }
  438. if( (op->label != NULL) && cmIsNotFlag(op->cfgFlags, kNoLabelGrPlFl) )
  439. {
  440. unsigned cc = cmGrDcColor(dcH);
  441. cmGrDcSetColor(dcH,op->labelColor);
  442. cmGrDcDrawTextJustify( dcH, op->fontId, op->fontSize, op->fontStyle, op->label, &pext, op->labelFlags );
  443. cmGrDcSetColor(dcH,cc);
  444. /*
  445. cmGrPSz_t sz;
  446. cmGrPPt_t pt;
  447. cmGrDcFontSetAndMeasure( dcH, op->fontId, op->fontSize, op->fontStyle, op->label, &sz );
  448. cmGrPExtCtr( &pext, &pt );
  449. cmGrDcDrawText( dcH, op->label, pt.x - sz.w/2, pt.y + sz.h/2 );
  450. */
  451. }
  452. }
  453. break;
  454. default:
  455. { assert(0); }
  456. }
  457. return true;
  458. }
  459. int _cmGrPlotObjDistance( cmGrObjFuncArgs_t* args, int x, int y )
  460. {
  461. return 0;
  462. }
  463. bool _cmGrPlotObjEvent( cmGrObjFuncArgs_t* args, unsigned flags, unsigned key, int px, int py )
  464. {
  465. cmGrPlotObj_t* op = args->cbArg;
  466. bool fl = false;
  467. cmGrPlotCbArg_t a;
  468. if( op->cbFunc != NULL )
  469. {
  470. cmGrPlotObj_t* cb_op = op;
  471. // if this is a key up/dn event and 'op' is not the 'focused op' then callback
  472. // callback on the 'focused op' instead of this 'op'.
  473. if( (cmIsFlag(flags,kKeyDnGrFl) || cmIsFlag(flags,kKeyUpGrFl)) && op->p->fop != op )
  474. cb_op = op->p->fop;
  475. _cmGrPlotObjSetupCbArg(&a,cb_op,kPreEventCbSelGrPlId);
  476. a.eventFlags = flags;
  477. a.eventKey = key;
  478. a.eventX = px;
  479. a.eventY = py;
  480. if( op->cbFunc(&a) == false )
  481. return true;
  482. }
  483. switch( flags & kEvtMask )
  484. {
  485. case kMsDownGrFl:
  486. break;
  487. case kMsUpGrFl:
  488. _cmGrPlotObjSetFocus( op );
  489. fl = true;
  490. break;
  491. case kMsClickGrFl:
  492. _cmGrPlotObjSetSelect(op, cmIsNotFlag(flags,kCtlKeyGrFl) );
  493. fl = true;
  494. break;
  495. case kMsDragGrFl:
  496. {
  497. cmGrVExt_t vext;
  498. cmGrVExt_t wext;
  499. if( cmIsFlag(op->cfgFlags,kNoDragGrPlFl | kNoDrawGrPlFl) )
  500. return false;
  501. // get the parent world extents
  502. cmGrObjWorldExt( cmGrObjParent( args->objH ), &wext );
  503. // calc the new position of the obj
  504. cmGrV_t x = args->msVPt.x - args->msDnVOffs.w;
  505. cmGrV_t y = args->msVPt.y - args->msDnVOffs.h;
  506. cmGrVExtSet(&vext,x,y,op->vext.sz.w,op->vext.sz.h);
  507. // the obj must be remain inside the parent wext
  508. cmGrVExtContain(&wext,&vext);
  509. // calculate the obj's location as an offset from it's anchors
  510. cmGrPlotObj_t* ap = op->xAnchor;
  511. for(; ap!=NULL; ap=ap->xAnchor)
  512. vext.loc.x -= ap->vext.loc.x;
  513. ap = op->yAnchor;
  514. for(; ap!=NULL; ap=ap->yAnchor)
  515. vext.loc.y -= ap->vext.loc.y;
  516. if( !cmGrVExtIsEqual(&op->vext,&vext) )
  517. {
  518. // move the object
  519. op->vext.loc.x = vext.loc.x;
  520. op->vext.loc.y = vext.loc.y;
  521. fl = true;
  522. }
  523. }
  524. break;
  525. case kKeyDnGrFl:
  526. case kKeyUpGrFl:
  527. break;
  528. }
  529. // notify the app of the event
  530. if( op->cbFunc != NULL )
  531. {
  532. a.selId = kEventCbSelGrPlId;
  533. op->cbFunc(&a);
  534. }
  535. return fl;
  536. }
  537. bool _cmGrPlotObjIsBorderClick( const cmGrPExt_t* pext, int px, int py )
  538. {
  539. int dist = 3;
  540. if( cmVOR_PtToLineDistance(cmGrPExtL(pext),cmGrPExtT(pext),cmGrPExtL(pext),cmGrPExtB(pext),px,py) < dist )
  541. return true;
  542. if(cmVOR_PtToLineDistance(cmGrPExtR(pext),cmGrPExtT(pext),cmGrPExtR(pext),cmGrPExtB(pext),px,py) < dist )
  543. return true;
  544. if( cmVOR_PtToLineDistance(cmGrPExtL(pext),cmGrPExtT(pext),cmGrPExtR(pext),cmGrPExtT(pext),px,py) < dist )
  545. return true;
  546. if(cmVOR_PtToLineDistance(cmGrPExtL(pext),cmGrPExtB(pext),cmGrPExtR(pext),cmGrPExtB(pext),px,py) < dist )
  547. return true;
  548. return false;
  549. }
  550. bool _cmGrPlotObjIsInside( cmGrObjFuncArgs_t* args, unsigned evtFlags, int px, int py, cmGrV_t vx, cmGrV_t vy )
  551. {
  552. cmGrVExt_t vext;
  553. cmGrPExt_t pext;
  554. cmGrPlotObj_t* op = args->cbArg;
  555. // no matter the type of event the object must be visible and enabled to respond to it
  556. if(!_cmGrPlotObjIsVisible(op)|| !_cmGrPlotObjIsEnabled(op) )
  557. return false;
  558. // objects that are not selectable are also not clickable
  559. if( cmIsFlag(evtFlags,kMsClickGrFl) && cmIsFlag(op->cfgFlags,kNoSelectGrPlFl) )
  560. return false;
  561. // non-draggable objects can't be dragged.
  562. if( cmIsFlag(evtFlags,kMsDragGrFl) && cmIsFlag(op->cfgFlags,kNoDragGrPlFl) )
  563. return false;
  564. // get the virtual extents of this object
  565. _cmGrPlotObjVExt( args, &vext );
  566. // convert the virtual ext's to phys ext's
  567. cmGrVExt_VtoP(args->grH,args->objH,&vext,&pext);
  568. // expand the ext's according to the off's
  569. cmGrPExtExpand(&pext,op->loffs,op->toffs,op->roffs,op->boffs);
  570. if( op->typeId == kLineGrPlId )
  571. if( cmVOR_PtToLineDistance(cmGrPExtL(&pext),cmGrPExtT(&pext),cmGrPExtR(&pext),cmGrPExtB(&pext),px,py) < 3 )
  572. return true;
  573. // if this is a click event and this is a border selectable object
  574. if( cmIsFlag(evtFlags,kMsClickGrFl) && cmIsFlag(op->cfgFlags,kBorderSelGrPlFl) )
  575. return _cmGrPlotObjIsBorderClick(&pext,px,py);
  576. // check if the px,py is inside pext
  577. return cmGrPExtIsXyInside(&pext,px,py);
  578. }
  579. void _cmGrPlotFuncObjSetupDefault(cmGrObjFunc_t *f, void* arg )
  580. {
  581. f->createCbFunc = _cmGrPlotObjCreate;
  582. f->createCbArg = arg;
  583. f->destroyCbFunc = _cmGrPlotObjDestroy;
  584. f->destroyCbArg = arg;
  585. f->renderCbFunc = _cmGrPlotObjRender;
  586. f->renderCbArg = arg;
  587. f->distanceCbFunc = _cmGrPlotObjDistance;
  588. f->distanceCbArg = arg;
  589. f->eventCbFunc = _cmGrPlotObjEvent;
  590. f->eventCbArg = arg;
  591. f->vextCbFunc = _cmGrPlotObjVExt;
  592. f->vextCbArg = arg;
  593. f->isInsideCbFunc = _cmGrPlotObjIsInside;
  594. f->isInsideCbArg = arg;
  595. }
  596. //------------------------------------------------------------------------------------------------------------------
  597. // Plot Object Public Functions
  598. //------------------------------------------------------------------------------------------------------------------
  599. cmGrPlRC_t cmGrPlotObjCreate(
  600. cmGrPlH_t hh,
  601. cmGrH_t grH,
  602. cmGrPlObjH_t* hp,
  603. unsigned id,
  604. cmGrPlObjH_t parentPlObjH,
  605. cmGrPlObjH_t xAnchorPlObjH,
  606. cmGrPlObjH_t yAnchorPlObjH,
  607. cmGrPlObjTypeId_t typeId,
  608. unsigned cfgFlags,
  609. cmReal_t x,
  610. cmReal_t y,
  611. cmReal_t w,
  612. cmReal_t h,
  613. const cmChar_t* label,
  614. const cmGrVExt_t* wext )
  615. {
  616. cmGrPlRC_t rc;
  617. cmGrObjFunc_t funcs;
  618. if((rc = cmGrPlotObjDestroy(hp)) != kOkGrPlRC )
  619. return rc;
  620. cmGrPl_t* p = _cmGrPlHandleToPtr(hh);
  621. cmGrPlotObj_t* op = cmMemAllocZ(cmGrPlotObj_t,1);
  622. _cmGrPlotObjLink(p,op);
  623. _cmGrPlotFuncObjSetupDefault(&funcs,op);
  624. // setup the object
  625. op->grH = grH;
  626. op->typeId = typeId;
  627. op->cfgFlags = cfgFlags;
  628. op->stateFlags = kEnabledGrPlFl;
  629. op->label = label==NULL ?NULL : cmMemAllocStr(label);
  630. op->labelFlags = kHorzCtrJsGrFl | kVertCtrJsGrFl;
  631. op->labelAngle = 0;
  632. op->labelColor = kBlackGrId;
  633. op->grObjH = cmGrObjNullHandle;
  634. op->parent = cmGrPlotObjIsValid(parentPlObjH) ? _cmGrPlObjHandleToPtr(parentPlObjH) : NULL;
  635. op->xAnchor = cmGrPlotObjIsValid(xAnchorPlObjH) ? _cmGrPlObjHandleToPtr(xAnchorPlObjH) : NULL;
  636. op->yAnchor = cmGrPlotObjIsValid(yAnchorPlObjH) ? _cmGrPlObjHandleToPtr(yAnchorPlObjH) : NULL;
  637. op->p = p;
  638. op->fontId = kHelveticaFfGrId;
  639. op->fontSize = 12;
  640. op->fontStyle = kNormalFsGrFl;
  641. op->cbFunc = p->cbFunc;
  642. op->cbArg = p->cbArg;
  643. if( cmIsFlag(op->cfgFlags,kSymbolGrPlFl) )
  644. {
  645. int ww = w==0 ? kDefaultSymW : w;
  646. int hh = h==0 ? kDefaultSymH : h;
  647. op->loffs = ww/2;
  648. op->roffs = ww/2;
  649. op->toffs = hh/2;
  650. op->boffs = hh/2;
  651. w = 0;
  652. h = 0;
  653. }
  654. cmGrVExtSet(&op->vext,x,y,w,h);
  655. // set the default colors
  656. op->drawColors[kSelectPlGrId] = 0xcd853f;
  657. op->fillColors[kSelectPlGrId] = 0xdeb887;
  658. op->drawColors[kFocusPlGrId] = 0x483d8b;
  659. op->fillColors[kFocusPlGrId] = 0x8470ff;
  660. op->drawColors[kEnablePlGrId] = 0x000000;
  661. op->fillColors[kEnablePlGrId] = 0x009ff7;
  662. op->drawColors[kDisablePlGrId] = 0xbebebe;
  663. op->fillColors[kDisablePlGrId] = 0xd3d3de;
  664. unsigned grObjCfgFlags = 0;
  665. cmGrObjH_t parentGrH = op->parent == NULL ? cmGrObjNullHandle : op->parent->grObjH;
  666. // create the graphics system object - during this call a
  667. // call is made to funcs.create().
  668. if( cmGrObjCreate(grH, &op->grObjH, parentGrH, &funcs, id, grObjCfgFlags, wext ) != kOkGrRC )
  669. {
  670. rc = cmErrMsg(&p->err,kGrFailGrPlRC,"Graphic system object create failed for object (id=%i).",id);
  671. goto errLabel;
  672. }
  673. if( hp != NULL )
  674. hp->h = op;
  675. errLabel:
  676. if( rc != kOkGrPlRC )
  677. _cmGrPlotObjDelete(op);
  678. return rc;
  679. }
  680. cmGrPlRC_t cmGrPlotObjDestroy( cmGrPlObjH_t* hp )
  681. {
  682. cmGrPlRC_t rc = kOkGrPlRC;
  683. if( hp==NULL || cmGrPlotObjIsValid(*hp)==false )
  684. return kOkGrPlRC;
  685. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(*hp);
  686. if((rc = _cmGrPlotObjDelete(op)) != kOkGrPlRC )
  687. return rc;
  688. hp->h = NULL;
  689. return rc;
  690. }
  691. bool cmGrPlotObjIsValid( cmGrPlObjH_t h )
  692. { return h.h != NULL; }
  693. cmGrPlH_t cmGrPlotObjMgrHandle( cmGrPlObjH_t oh )
  694. {
  695. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  696. cmGrPlH_t grPlH;
  697. grPlH.h = op->p;
  698. return grPlH;
  699. }
  700. cmGrObjH_t cmGrPlotObjHandle( cmGrPlObjH_t oh )
  701. {
  702. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  703. return op->grObjH;
  704. }
  705. cmGrPlObjH_t cmGrPlotObjParent( cmGrPlObjH_t oh )
  706. {
  707. cmGrPlObjH_t p_oh;
  708. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  709. p_oh.h = op->parent;
  710. return p_oh;
  711. }
  712. cmGrPlObjH_t cmGrPlotObjXAnchor( cmGrPlObjH_t oh )
  713. {
  714. cmGrPlObjH_t p_oh;
  715. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  716. p_oh.h = op->xAnchor;
  717. return p_oh;
  718. }
  719. cmGrPlObjH_t cmGrPlotObjYAnchor( cmGrPlObjH_t oh )
  720. {
  721. cmGrPlObjH_t p_oh;
  722. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  723. p_oh.h = op->yAnchor;
  724. return p_oh;
  725. }
  726. void cmGrPlotObjSetId( cmGrPlObjH_t oh, unsigned id )
  727. {
  728. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  729. cmGrObjSetId( op->grObjH, id );
  730. }
  731. void cmGrPlotObjSetUserPtr( cmGrPlObjH_t oh, void* userPtr )
  732. {
  733. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  734. if( op->userByteCnt != 0 )
  735. {
  736. cmMemFree(op->userPtr);
  737. op->userByteCnt = 0;
  738. }
  739. op->userPtr = userPtr;
  740. }
  741. void cmGrPlotObjAllocUser( cmGrPlObjH_t oh, const void* data, unsigned byteCnt )
  742. {
  743. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  744. if( op->userByteCnt != byteCnt )
  745. {
  746. if( op->userByteCnt != 0 )
  747. {
  748. cmMemFree(op->userPtr);
  749. op->userByteCnt = 0;
  750. }
  751. op->userPtr = cmMemAlloc(char,byteCnt);
  752. op->userByteCnt = byteCnt;
  753. }
  754. memcpy(op->userPtr,data,byteCnt);
  755. }
  756. void* cmGrPlotObjUserPtr( cmGrPlObjH_t oh )
  757. {
  758. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  759. return op->userPtr;
  760. }
  761. unsigned cmGrPlotObjId( cmGrPlObjH_t oh )
  762. {
  763. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  764. return cmGrObjId(op->grObjH);
  765. }
  766. void cmGrPlotObjSetLabel( cmGrPlObjH_t oh, const cmChar_t* label )
  767. {
  768. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  769. if( label == op->label || (label != NULL && op->label!=NULL && strcmp(label,op->label)==0 ))
  770. return;
  771. cmMemPtrFree(&op->label);
  772. if( label != NULL )
  773. {
  774. assert( op->label == NULL );
  775. op->label = cmMemAllocStr(label);
  776. }
  777. }
  778. const cmChar_t* cmGrPlotObjLabel( cmGrPlObjH_t oh )
  779. {
  780. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  781. return op->label;
  782. }
  783. void cmGrPlotObjSetLabelAttr( cmGrPlObjH_t oh, unsigned flags, int angle, const cmGrColor_t color )
  784. {
  785. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  786. op->labelFlags = flags;
  787. op->labelAngle = angle;
  788. op->labelColor = color;
  789. }
  790. unsigned cmGrPlotObjLabelFlags( cmGrPlObjH_t oh )
  791. {
  792. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  793. return op->labelFlags;
  794. }
  795. int cmGrPlotObjLabelAngle( cmGrPlObjH_t oh )
  796. {
  797. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  798. return op->labelAngle;
  799. }
  800. const cmGrColor_t cmGrPlotObjLabelColor( cmGrPlObjH_t oh )
  801. {
  802. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  803. return op->labelColor;
  804. }
  805. void cmGrPlotObjSetStateFlags( cmGrPlObjH_t oh, unsigned flags )
  806. {
  807. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  808. if( cmIsFlag(flags,kVisibleGrPlFl) != _cmGrPlotObjIsVisible(op) )
  809. {
  810. if( _cmGrPlotObjCb(op, kPreEventCbSelGrPlId, kVisibleGrPlFl ) == false )
  811. return;
  812. op->cfgFlags = cmTogFlag(op->cfgFlags,kNoDrawGrPlFl);
  813. _cmGrPlotObjCb(op, kStateChangeGrPlId, kVisibleGrPlFl );
  814. }
  815. if( cmIsFlag(flags,kEnabledGrPlFl) != _cmGrPlotObjIsEnabled(op) )
  816. {
  817. if( _cmGrPlotObjCb(op, kPreEventCbSelGrPlId, kEnabledGrPlFl ) == false )
  818. return;
  819. op->stateFlags = cmTogFlag(op->cfgFlags,kEnabledGrPlFl);
  820. _cmGrPlotObjCb(op, kStateChangeGrPlId, kEnabledGrPlFl );
  821. }
  822. bool fl;
  823. if( cmIsFlag(flags,kSelectGrPlFl) != (fl=_cmGrPlotObjIsSelected(op)) )
  824. _cmGrPlotObjSetSelect(op, !fl );
  825. if( cmIsFlag(flags,kFocusGrPlFl) != (fl=_cmGrPlotObjIsFocused(op)) )
  826. if( fl )
  827. _cmGrPlotObjSetFocus(op);
  828. }
  829. unsigned cmGrPlotObjStateFlags( cmGrPlObjH_t oh )
  830. {
  831. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  832. return
  833. (_cmGrPlotObjIsEnabled(op) ? kEnabledGrPlFl : 0)
  834. | (_cmGrPlotObjIsVisible(op) ? kVisibleGrPlFl : 0)
  835. | (_cmGrPlotObjIsFocused(op) ? kFocusGrPlFl : 0)
  836. | (_cmGrPlotObjIsSelected(op) ? kSelectGrPlFl : 0);
  837. }
  838. void cmGrPlotObjSetCfgFlags( cmGrPlObjH_t oh, unsigned flags )
  839. {
  840. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  841. op->cfgFlags = flags;
  842. }
  843. void cmGrPlotObjClrCfgFlags( cmGrPlObjH_t oh, unsigned flags )
  844. {
  845. unsigned curFlags = cmGrPlotObjCfgFlags(oh);
  846. cmGrPlotObjSetCfgFlags(oh, cmClrFlag(curFlags,flags));
  847. }
  848. void cmGrPlotObjTogCfgFlags( cmGrPlObjH_t oh, unsigned flags )
  849. {
  850. unsigned curFlags = cmGrPlotObjCfgFlags(oh);
  851. cmGrPlotObjSetCfgFlags(oh, cmTogFlag(curFlags,flags));
  852. }
  853. unsigned cmGrPlotObjCfgFlags( cmGrPlObjH_t oh )
  854. {
  855. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  856. return op->cfgFlags;
  857. }
  858. cmGrPlRC_t cmGrPlotObjSetPhysExt( cmGrPlObjH_t oh, int loffs, int toffs, int roffs, int boffs )
  859. {
  860. cmGrPlRC_t rc = kOkGrPlRC;
  861. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  862. op->loffs = loffs;
  863. op->toffs = toffs;
  864. op->roffs = roffs;
  865. op->boffs = boffs;
  866. return rc;
  867. }
  868. void cmGrPlotObjPhysExt( cmGrPlObjH_t oh, int* loffs, int* toffs, int* roffs, int* boffs )
  869. {
  870. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  871. if( loffs != NULL )
  872. *loffs = op->loffs;
  873. if( toffs != NULL )
  874. *toffs = op->toffs;
  875. if( roffs != NULL )
  876. *roffs = op->roffs;
  877. if( boffs != NULL )
  878. *boffs = op->boffs;
  879. }
  880. void cmGrPlotObjVExt( cmGrPlObjH_t oh, cmGrVExt_t* vext )
  881. {
  882. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  883. _cmGrPlotObjGetVExt(op, vext);
  884. }
  885. void cmGrPlotObjSetFontFamily( cmGrPlObjH_t oh, unsigned id )
  886. {
  887. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  888. op->fontId = id;
  889. }
  890. unsigned cmGrPlotObjFontFamily( cmGrPlObjH_t oh )
  891. {
  892. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  893. return op->fontId;
  894. }
  895. void cmGrPlotObjSetFontStyle( cmGrPlObjH_t oh, unsigned style )
  896. {
  897. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  898. op->fontStyle = style;
  899. }
  900. unsigned cmGrPlotObjFontStyle( cmGrPlObjH_t oh )
  901. {
  902. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  903. return op->fontStyle;
  904. }
  905. void cmGrPlotObjSetFontSize( cmGrPlObjH_t oh, unsigned size )
  906. {
  907. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  908. op->fontSize = size;
  909. }
  910. unsigned cmGrPlotObjFontSize( cmGrPlObjH_t oh )
  911. {
  912. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  913. return op->fontSize;
  914. }
  915. void cmGrPlotObjSetLineColor( cmGrPlObjH_t oh, cmGrPlStateId_t id, const cmGrColor_t c )
  916. {
  917. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  918. assert( id < kMaxPlGrId );
  919. op->drawColors[ id ] = c;
  920. }
  921. const cmGrColor_t cmGrPlotObjLineColor( cmGrPlObjH_t oh, cmGrPlStateId_t id )
  922. {
  923. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  924. assert( id < kMaxPlGrId );
  925. return op->drawColors[id];
  926. }
  927. const cmGrColor_t cmGrPlotObjCurLineColor( cmGrPlObjH_t h )
  928. {
  929. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(h);
  930. return _cmGrPlotColor(op,op->drawColors);
  931. }
  932. void cmGrPlotObjSetFillColor( cmGrPlObjH_t oh, cmGrPlStateId_t id, const cmGrColor_t c )
  933. {
  934. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  935. assert( id < kMaxPlGrId );
  936. op->fillColors[ id ] = c;
  937. }
  938. const cmGrColor_t cmGrPlotObjFillColor( cmGrPlObjH_t oh, cmGrPlStateId_t id )
  939. {
  940. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(oh);
  941. assert( id < kMaxPlGrId );
  942. return op->fillColors[id];
  943. }
  944. const cmGrColor_t cmGrPlotObjCurFillColor( cmGrPlObjH_t h )
  945. {
  946. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(h);
  947. return _cmGrPlotColor(op,op->fillColors);
  948. }
  949. void cmGrPlotObjSetCb( cmGrPlObjH_t h, cmGrPlotCbFunc_t func, void* arg )
  950. {
  951. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(h);
  952. op->cbFunc = func;
  953. op->cbArg = arg;
  954. }
  955. cmGrPlotCbFunc_t cmGrPlotObjCbFunc( cmGrPlObjH_t h )
  956. {
  957. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(h);
  958. return op->cbFunc;
  959. }
  960. void* cmGrPlotObjCbArg( cmGrPlObjH_t h )
  961. {
  962. cmGrPlotObj_t* op = _cmGrPlObjHandleToPtr(h);
  963. return op->cbArg;
  964. }
  965. void cmGrPlotObjDrawAbove( cmGrPlObjH_t bH, cmGrPlObjH_t aH )
  966. {
  967. cmGrPlotObj_t* bop = _cmGrPlObjHandleToPtr(bH);
  968. cmGrPlotObj_t* aop = _cmGrPlObjHandleToPtr(aH);
  969. cmGrObjDrawAbove(bop->grObjH,aop->grObjH);
  970. }
  971. //------------------------------------------------------------------------------------------------------------------
  972. // Plot Object Manager Functions
  973. //------------------------------------------------------------------------------------------------------------------
  974. cmGrPlRC_t cmGrPlotCreate( cmCtx_t* ctx, cmGrPlH_t* hp )
  975. {
  976. cmGrPlRC_t rc;
  977. if((rc = cmGrPlotDestroy(hp)) != kOkGrPlRC )
  978. return rc;
  979. cmGrPl_t* p = cmMemAllocZ(cmGrPl_t,1);
  980. cmErrSetup(&p->err,&ctx->rpt,"cmGrPlot");
  981. p->ctx = ctx;
  982. hp->h = p;
  983. if( rc != kOkGrPlRC )
  984. _cmGrPlotDestroy(p);
  985. return rc;
  986. }
  987. cmGrPlRC_t cmGrPlotDestroy( cmGrPlH_t* hp )
  988. {
  989. cmGrPlRC_t rc;
  990. if( hp==NULL || cmGrPlotIsValid(*hp) == false )
  991. return kOkGrPlRC;
  992. cmGrPl_t* p = _cmGrPlHandleToPtr(*hp);
  993. if((rc = _cmGrPlotDestroy(p)) != kOkGrPlRC )
  994. return rc;
  995. hp->h = NULL;
  996. return rc;
  997. }
  998. bool cmGrPlotIsValid( cmGrPlH_t h )
  999. { return h.h != NULL; }
  1000. cmGrPlRC_t cmGrPlotClear( cmGrPlH_t h )
  1001. {
  1002. cmGrPl_t* p = _cmGrPlHandleToPtr(h);
  1003. return _cmGrPlotClear(p);
  1004. }
  1005. cmErr_t* cmGrPlotErr( cmGrPlH_t h )
  1006. {
  1007. cmGrPl_t* p = _cmGrPlHandleToPtr(h);
  1008. return &p->err;
  1009. }
  1010. cmRpt_t* cmGrPlotRpt( cmGrPlH_t h )
  1011. {
  1012. cmGrPl_t* p = _cmGrPlHandleToPtr(h);
  1013. return p->err.rpt;
  1014. }
  1015. cmGrPlObjH_t cmGrPlotObjectIdToHandle( cmGrPlH_t h, unsigned id )
  1016. {
  1017. cmGrPl_t* p = _cmGrPlHandleToPtr(h);
  1018. cmGrPlObjH_t oh = cmGrPlObjNullHandle;
  1019. cmGrPlotObj_t* op = p->list;
  1020. for(; op!=NULL; op=op->next)
  1021. if( cmGrObjId(op->grObjH) == id )
  1022. {
  1023. oh.h = op;
  1024. break;
  1025. }
  1026. return oh;
  1027. }
  1028. unsigned cmGrPlotObjectCount( cmGrPlH_t h )
  1029. {
  1030. cmGrPl_t* p = _cmGrPlHandleToPtr(h);
  1031. cmGrPlotObj_t* op = p->list;
  1032. unsigned n = 0;
  1033. for(; op!=NULL; ++n )
  1034. op=op->next;
  1035. return n;
  1036. }
  1037. cmGrPlObjH_t cmGrPlotObjectIndexToHandle( cmGrPlH_t h, unsigned index )
  1038. {
  1039. cmGrPl_t* p = _cmGrPlHandleToPtr(h);
  1040. cmGrPlotObj_t* op = p->list;
  1041. unsigned i = 0;
  1042. cmGrPlObjH_t oh = cmGrPlObjNullHandle;
  1043. for(; i<index && op!=NULL; ++i)
  1044. op = op->next;
  1045. if( op != NULL )
  1046. oh.h = op;
  1047. return oh;
  1048. }
  1049. void cmGrPlotKeyEvent( cmGrPlH_t h, cmGrH_t grH, unsigned eventFlags, cmGrKeyCodeId_t keycode )
  1050. {
  1051. assert( cmIsFlag(eventFlags,kKeyDnGrFl | kKeyUpGrFl));
  1052. cmGrPl_t* p = _cmGrPlHandleToPtr(h);
  1053. if( p->fop != NULL && cmHandlesAreEqual(p->fop->grH,grH) )
  1054. {
  1055. cmGrObjFuncArgs_t a;
  1056. memset(&a,0,sizeof(a));
  1057. a.cbArg = p->fop;
  1058. a.ctx = p->ctx;
  1059. a.grH = grH;
  1060. a.objH = p->fop->grObjH;
  1061. _cmGrPlotObjEvent(&a, eventFlags, keycode, 0, 0 );
  1062. }
  1063. }
  1064. void cmGrPlotSetCb( cmGrPlH_t h, cmGrPlotCbFunc_t func, void* arg )
  1065. {
  1066. cmGrPl_t* p = _cmGrPlHandleToPtr(h);
  1067. p->cbFunc = func;
  1068. p->cbArg = arg;
  1069. }