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-00009 #include <string.h>
-00010 #include "DeskLib:Error.h"
-00011 #include "DeskLib:SWI.h"
-00012 #include "drawfile.h"
-00013 #include "antiword.h"
-00014
-00015 #define DRAWFILE_OBJECT_TOO_SMALL 200
-00016 #define DRAWFILE_NO_TEXT 201
-00017 #define DRAWFILE_BAD_CHARACTER 202
-00018 #define DRAWFILE_SMALL_MEMORY 203
-00019 #define DRAWFILE_PATH_WITHOUT_LINES 204
-00020 #define DRAWFILE_BAD_PATH_TYPE 205
-00021 #define DRAWFILE_PATH_WITHOUT_END 206
-00022 #define DRAWFILE_BAD_SPRITE_SIZE 207
-00023 #define DRAWFILE_BAD_JPEG_SIZE 208
-00024 #define DRAWFILE_TOO_SMALL 209
-00025 #define DRAWFILE_NOT_A_DRAWFILE 210
-00026 #define DRAWFILE_OBJECT_SIZE 211
-00027 #define DRAWFILE_MANY_FONTTABLES 212
-00028 #define DRAWFILE_TEXT_NO_FONT 213
-00029 #define DRAWFILE_OBJECT_UNEXPECTED 214
-00030 #define DRAWFILE_SIZE_ERROR 215
-00031
-00032 typedef struct drawfile_error_tag {
-00033 int iErrorNumber;
-00034 const char *szErrorText;
-00035 } drawfile_error_type;
-00036
-00037 static const drawfile_error_type atErrors[] = {
-00038 { DRAWFILE_OBJECT_TOO_SMALL, "Object too small"},
-00039 { DRAWFILE_NO_TEXT, "Text object without text"},
-00040 { DRAWFILE_BAD_CHARACTER, "Bad character in string"},
-00041 { DRAWFILE_SMALL_MEMORY, "Not enough memory reserved"},
-00042 { DRAWFILE_PATH_WITHOUT_LINES, "This path has no lines"},
-00043 { DRAWFILE_BAD_PATH_TYPE, "Bad path-type in path"},
-00044 { DRAWFILE_PATH_WITHOUT_END, "No end of path seen"},
-00045 { DRAWFILE_BAD_SPRITE_SIZE, "Bad sprite size"},
-00046 { DRAWFILE_BAD_JPEG_SIZE, "Bad jpeg size"},
-00047 { DRAWFILE_TOO_SMALL, "Too small to be a drawfile"},
-00048 { DRAWFILE_NOT_A_DRAWFILE, "Not a drawfile"},
-00049 { DRAWFILE_OBJECT_SIZE, "Object with incorrect size"},
-00050 { DRAWFILE_MANY_FONTTABLES, "More than one font table"},
-00051 { DRAWFILE_TEXT_NO_FONT, "Text, but no font table seen"},
-00052 { DRAWFILE_OBJECT_UNEXPECTED, "Unexpected object type"},
-00053 { DRAWFILE_SIZE_ERROR, "Sizes don't match"},
-00054 };
-00055
-00056
-00057
-00058
-00059
-00060 static os_error *
-00061 pFillError(int iErrorNumber)
-00062 {
-00063 static os_error tError;
-00064 const drawfile_error_type *pTmp;
-00065 const char *szErrorText;
-00066
-00067 szErrorText = "Unknown error";
-00068 for (pTmp = atErrors; pTmp < atErrors + elementsof(atErrors); pTmp++) {
-00069 if (iErrorNumber == pTmp->iErrorNumber) {
-00070 szErrorText = pTmp->szErrorText;
-00071 break;
-00072 }
-00073 }
-00074 tError.errnum = iErrorNumber;
-00075 strncpy(tError.errmess, szErrorText, sizeof(tError.errmess) - 1);
-00076 tError.errmess[sizeof(tError.errmess) - 1] = '\0';
-00077 DBG_DEC(tError.errnum);
-00078 DBG_MSG(tError.errmess);
-00079 return &tError;
-00080 }
-00081
-00082
-00083
-00084
-00085 os_error *
-00086 Drawfile_Bbox(drawfile_bbox_flags flags,
-00087 drawfile_diagram const *diagram,
-00088 int size,
-00089 os_trfm const *trfm,
-00090 wimp_box *bbox)
-00091 {
-00092 return SWI(5, 0, DrawFile_BBox | XOS_Bit,
-00093 flags, diagram, size, trfm, bbox);
-00094 }
-00095
-00096
-00097
-00098
-00099 os_error *
-00100 Drawfile_CreateDiagram(drawfile_info *pInfo, size_t tMemorySize,
-00101 const char *szCreator, wimp_box tBbox)
-00102 {
-00103 drawfile_diagram *pDiag;
-00104
-00105 if (tMemorySize < offsetof(drawfile_diagram, objects)) {
-00106 return pFillError(DRAWFILE_SMALL_MEMORY);
-00107 }
-00108 pDiag = (drawfile_diagram *)pInfo->data;
-00109 strncpy(pDiag->tag, "Draw", 4);
-00110 pDiag->major_version = 201;
-00111 pDiag->minor_version = 0;
-00112 strncpy(pDiag->source, szCreator, sizeof(pDiag->source));
-00113 pDiag->bbox = tBbox;
-00114
-00115 pInfo->length = offsetof(drawfile_diagram, objects);
-00116 return NULL;
-00117 }
-00118
-00119
-00120
-00121
-00122 os_error *
-00123 Drawfile_AppendObject(drawfile_info *pInfo, size_t tMemorySize,
-00124 const drawfile_object *pObject, BOOL bRebind)
-00125 {
-00126 wimp_box *pMainBbox;
-00127 const wimp_box *pBbox;
-00128 byte *pAfter;
-00129
-00130 if (tMemorySize < pInfo->length + pObject->size) {
-00131 return pFillError(DRAWFILE_OBJECT_TOO_SMALL);
-00132 }
-00133
-00134 pAfter = (byte *)pInfo->data + pInfo->length;
-00135
-00136 memcpy(pAfter, pObject, pObject->size);
-00137
-00138 if (bRebind) {
-00139 pMainBbox = &((drawfile_diagram *)pInfo->data)->bbox;
-00140 switch (pObject->type) {
-00141 case drawfile_TYPE_FONT_TABLE:
-00142 pBbox = NULL;
-00143 break;
-00144 case drawfile_TYPE_TEXT:
-00145 pBbox = &pObject->data.text.bbox;
-00146 break;
-00147 case drawfile_TYPE_PATH:
-00148 pBbox = &pObject->data.path.bbox;
-00149 break;
-00150 case drawfile_TYPE_SPRITE:
-00151 pBbox = &pObject->data.sprite.bbox;
-00152 break;
-00153 case drawfile_TYPE_GROUP:
-00154 pBbox = &pObject->data.group.bbox;
-00155 break;
-00156 case drawfile_TYPE_TAGGED:
-00157 pBbox = &pObject->data.tagged.bbox;
-00158 break;
-00159 case drawfile_TYPE_TEXT_AREA:
-00160 pBbox = &pObject->data.text_area.bbox;
-00161 break;
-00162 case drawfile_TYPE_TEXT_COLUMN:
-00163 pBbox = NULL;
-00164 break;
-00165 case drawfile_TYPE_OPTIONS:
-00166 pBbox = &pObject->data.options.bbox;
-00167 break;
-00168 case drawfile_TYPE_TRFM_TEXT:
-00169 pBbox = &pObject->data.trfm_text.bbox;
-00170 break;
-00171 case drawfile_TYPE_TRFM_SPRITE:
-00172 pBbox = &pObject->data.trfm_sprite.bbox;
-00173 break;
-00174 case drawfile_TYPE_JPEG:
-00175 pBbox = &pObject->data.jpeg.bbox;
-00176 break;
-00177 default:
-00178 pBbox = NULL;
-00179 break;
-00180 }
-00181 if (pBbox != NULL) {
-00182 if (pBbox->min.x < pMainBbox->min.x) {
-00183 pMainBbox->min.x = pBbox->min.x;
-00184 }
-00185 if (pBbox->min.y < pMainBbox->min.y) {
-00186 pMainBbox->min.y = pBbox->min.y;
-00187 }
-00188 if (pBbox->max.x > pMainBbox->max.x) {
-00189 pMainBbox->max.x = pBbox->max.x;
-00190 }
-00191 if (pBbox->max.y > pMainBbox->max.y) {
-00192 pMainBbox->max.y = pBbox->max.y;
-00193 }
-00194 }
-00195 }
-00196
-00197 pInfo->length += pObject->size;
-00198 return NULL;
-00199 }
-00200
-00201
-00202
-00203
-00204 os_error *
-00205 Drawfile_RenderDiagram(drawfile_info *pInfo, window_redrawblock *pRedraw,
-00206 double dScale)
-00207 {
-00208 int aiTransform[6];
-00209
-00210 fail(pInfo == NULL);
-00211 fail(pInfo->data == NULL);
-00212 fail(pRedraw == NULL);
-00213 fail(dScale < 0.01);
-00214
-00215 aiTransform[0] = (int)(dScale * 0x10000);
-00216 aiTransform[1] = 0;
-00217 aiTransform[2] = 0;
-00218 aiTransform[3] = (int)(dScale * 0x10000);
-00219 aiTransform[4] = (pRedraw->rect.min.x - pRedraw->scroll.x) * 256;
-00220 aiTransform[5] = (pRedraw->rect.max.y - pRedraw->scroll.y) * 256;
-00221
-00222 return SWI(6, 0, DrawFile_Render | XOS_Bit,
-00223 0, pInfo->data, pInfo->length, aiTransform, &pRedraw->rect, 0);
-00224 }
-00225
-00226
-00227
-00228
-00229 static os_error *
-00230 pVerifyText(const drawfile_text *pText)
-00231 {
-00232 const unsigned char *pucTmp;
-00233
-00234 if (pText->text[0] == '\0') {
-00235 return pFillError(DRAWFILE_NO_TEXT);
-00236 }
-00237 pucTmp = (const unsigned char *)pText->text;
-00238 while (*pucTmp != '\0') {
-00239 if (*pucTmp < 0x20 || *pucTmp == 0x7f) {
-00240 return pFillError(DRAWFILE_BAD_CHARACTER);
-00241 }
-00242 pucTmp++;
-00243 }
-00244 return NULL;
-00245 }
-00246
-00247
-00248
-00249
-00250 static os_error *
-00251 pVerifyPath(const drawfile_path *pPath, int iSize)
-00252 {
-00253 const int *piTmp;
-00254 int iElements;
-00255 BOOL bLine;
-00256
-00257 bLine = FALSE;
-00258 iElements = (iSize - offsetof(drawfile_path, path)) / 4;
-00259
-00260 for (piTmp = pPath->path; piTmp < pPath->path + iElements; piTmp++) {
-00261 switch(*piTmp) {
-00262 case drawfile_PATH_END_PATH:
-00263 if (bLine) {
-00264 return NULL;
-00265 }
-00266 return pFillError(DRAWFILE_PATH_WITHOUT_LINES);
-00267 case drawfile_PATH_LINE_TO:
-00268 bLine = TRUE;
-00269 piTmp += 2;
-00270 break;
-00271 case drawfile_PATH_MOVE_TO:
-00272 piTmp += 2;
-00273 break;
-00274 case drawfile_PATH_CLOSE_LINE:
-00275 bLine = TRUE;
-00276 break;
-00277 default:
-00278 return pFillError(DRAWFILE_BAD_PATH_TYPE);
-00279 }
-00280 }
-00281 return pFillError(DRAWFILE_PATH_WITHOUT_END);
-00282 }
-00283
-00284
-00285
-00286
-00287 static os_error *
-00288 pVerifySprite(const drawfile_sprite *pSprite, int iSize)
-00289 {
-00290 iSize -= offsetof(drawfile_sprite, header);
-00291 if (iSize < pSprite->header.offset_next) {
-00292 DBG_DEC(iSize);
-00293 DBG_DEC(pSprite->header.offset_next);
-00294 return pFillError(DRAWFILE_BAD_SPRITE_SIZE);
-00295 }
-00296 return NULL;
-00297 }
-00298
-00299
-00300
-00301
-00302 static os_error *
-00303 pVerifyJpeg(const drawfile_jpeg *pJpeg, int iSize)
-00304 {
-00305 iSize -= offsetof(drawfile_jpeg, data);
-00306 if (iSize < pJpeg->len) {
-00307 DBG_DEC(iSize);
-00308 DBG_DEC(pJpeg->len);
-00309 return pFillError(DRAWFILE_BAD_JPEG_SIZE);
-00310 }
-00311 return NULL;
-00312 }
-00313
-00314
-00315
-00316
-00317
-00318
-00319 os_error *
-00320 Drawfile_VerifyDiagram(drawfile_info *pInfo)
-00321 {
-00322 drawfile_diagram *pDiag;
-00323 drawfile_object *pObj;
-00324 os_error *pError;
-00325 const char *pcTmp;
-00326 int iToGo, iFontTables;
-00327 BOOL bTypeFontTable;
-00328
-00329 TRACE_MSG("Drawfile_VerifyDiagram");
-00330
-00331 fail(pInfo == NULL);
-00332
-00333 if (pInfo->length < offsetof(drawfile_diagram, objects)) {
-00334 return pFillError(DRAWFILE_TOO_SMALL);
-00335 }
-00336
-00337 pDiag = (drawfile_diagram *)pInfo->data;
-00338 if (strncmp(pDiag->tag, "Draw", 4) != 0 ||
-00339 pDiag->major_version != 201 ||
-00340 pDiag->minor_version != 0) {
-00341 return pFillError(DRAWFILE_NOT_A_DRAWFILE);
-00342 }
-00343
-00344 iToGo = pInfo->length - offsetof(drawfile_diagram, objects);
-00345 pcTmp = (const char *)pInfo->data + offsetof(drawfile_diagram, objects);
-00346 iFontTables = 0;
-00347 bTypeFontTable = FALSE;
-00348
-00349 while (iToGo > 0) {
-00350 pObj = (drawfile_object *)pcTmp;
-00351 if (pObj->size < 0 || pObj->size % 4 != 0) {
-00352 return pFillError(DRAWFILE_OBJECT_SIZE);
-00353 }
-00354 switch (pObj->type) {
-00355 case drawfile_TYPE_FONT_TABLE:
-00356 if (bTypeFontTable) {
-00357 return pFillError(DRAWFILE_MANY_FONTTABLES);
-00358 }
-00359 bTypeFontTable = TRUE;
-00360 break;
-00361 case drawfile_TYPE_TEXT:
-00362 if (pObj->data.text.style.font_ref != 0 &&
-00363 !bTypeFontTable) {
-00364 return pFillError(DRAWFILE_TEXT_NO_FONT);
-00365 }
-00366 pError = pVerifyText(&pObj->data.text);
-00367 if (pError != NULL) {
-00368 return pError;
-00369 }
-00370 break;
-00371 case drawfile_TYPE_PATH:
-00372 pError = pVerifyPath(&pObj->data.path,
-00373 pObj->size - offsetof(drawfile_object, data));
-00374 if (pError != NULL) {
-00375 return pError;
-00376 }
-00377 break;
-00378 case drawfile_TYPE_SPRITE:
-00379 pError = pVerifySprite(&pObj->data.sprite,
-00380 pObj->size - offsetof(drawfile_object, data));
-00381 if (pError != NULL) {
-00382 return pError;
-00383 }
-00384 break;
-00385 case drawfile_TYPE_JPEG:
-00386 pError = pVerifyJpeg(&pObj->data.jpeg,
-00387 pObj->size - offsetof(drawfile_object, data));
-00388 if (pError != NULL) {
-00389 return pError;
-00390 }
-00391 break;
-00392 default:
-00393 DBG_DEC(pObj->type);
-00394 return pFillError(DRAWFILE_OBJECT_UNEXPECTED);
-00395 }
-00396 pcTmp += pObj->size;
-00397 iToGo -= pObj->size;
-00398 }
-00399 if (iToGo < 0) {
-00400 return pFillError(DRAWFILE_SIZE_ERROR);
-00401 }
-00402 return NULL;
-00403 }
-00404
-00405
-00406
-00407
-00408 void
-00409 Drawfile_QueryBox(drawfile_info *pInfo, wimp_box *pRect, BOOL bScreenUnits)
-00410 {
-00411 fail(pInfo == NULL);
-00412 fail(pRect == NULL);
-00413
-00414 Error_CheckFatal(Drawfile_Bbox(0,
-00415 pInfo->data, pInfo->length, NULL, pRect));
-00416 if (bScreenUnits) {
-00417 pRect->min.x = Drawfile_DrawToScreen(pRect->min.x);
-00418 pRect->min.y = Drawfile_DrawToScreen(pRect->min.y);
-00419 pRect->max.x = Drawfile_DrawToScreen(pRect->max.x);
-00420 pRect->max.y = Drawfile_DrawToScreen(pRect->max.y);
-00421 }
-00422 }
-