1 //========================================================================
5 // Copyright 1996-2003 Glyph & Cog, LLC
7 //========================================================================
11 #ifdef USE_GCC_PRAGMAS
12 #pragma implementation
16 #include "GlobalParams.h"
22 #include "OutputDev.h"
23 #ifndef PDF_PARSER_ONLY
31 //------------------------------------------------------------------------
33 //------------------------------------------------------------------------
35 PageAttrs::PageAttrs(PageAttrs *attrs, Dict *dict) {
38 // get old/default values
40 mediaBox = attrs->mediaBox;
41 cropBox = attrs->cropBox;
42 haveCropBox = attrs->haveCropBox;
43 rotate = attrs->rotate;
44 attrs->resources.copy(&resources);
46 // set default MediaBox to 8.5" x 11" -- this shouldn't be necessary
47 // but some (non-compliant) PDF files don't specify a MediaBox
52 cropBox.x1 = cropBox.y1 = cropBox.x2 = cropBox.y2 = 0;
59 readBox(dict, "MediaBox", &mediaBox);
62 if (readBox(dict, "CropBox", &cropBox)) {
71 readBox(dict, "BleedBox", &bleedBox);
73 readBox(dict, "TrimBox", &trimBox);
75 readBox(dict, "ArtBox", &artBox);
78 dict->lookup("Rotate", &obj1);
80 rotate = obj1.getInt();
86 while (rotate >= 360) {
91 dict->lookup("LastModified", &lastModified);
92 dict->lookup("BoxColorInfo", &boxColorInfo);
93 dict->lookup("Group", &group);
94 dict->lookup("Metadata", &metadata);
95 dict->lookup("PieceInfo", &pieceInfo);
96 dict->lookup("SeparationInfo", &separationInfo);
98 // resource dictionary
99 dict->lookup("Resources", &obj1);
102 obj1.copy(&resources);
107 PageAttrs::~PageAttrs() {
113 separationInfo.free();
117 GBool PageAttrs::readBox(Dict *dict, char *key, PDFRectangle *box) {
123 dict->lookup(key, &obj1);
124 if (obj1.isArray() && obj1.arrayGetLength() == 4) {
126 obj1.arrayGet(0, &obj2);
128 tmp.x1 = obj2.getNum();
133 obj1.arrayGet(1, &obj2);
135 tmp.y1 = obj2.getNum();
140 obj1.arrayGet(2, &obj2);
142 tmp.x2 = obj2.getNum();
147 obj1.arrayGet(3, &obj2);
149 tmp.y2 = obj2.getNum();
155 if (tmp.x1 > tmp.x2) {
156 t = tmp.x1; tmp.x1 = tmp.x2; tmp.x2 = t;
158 if (tmp.y1 > tmp.y2) {
159 t = tmp.y1; tmp.y1 = tmp.y2; tmp.y2 = t;
170 //------------------------------------------------------------------------
172 //------------------------------------------------------------------------
174 Page::Page(XRef *xrefA, int numA, Dict *pageDict, PageAttrs *attrsA) {
183 pageDict->lookupNF("Annots", &annots);
184 if (!(annots.isRef() || annots.isArray() || annots.isNull())) {
185 error(-1, "Page annotations object (page %d) is wrong type (%s)",
186 num, annots.getTypeName());
192 pageDict->lookupNF("Contents", &contents);
193 if (!(contents.isRef() || contents.isArray() ||
194 contents.isNull())) {
195 error(-1, "Page contents object (page %d) is wrong type (%s)",
196 num, contents.getTypeName());
216 void Page::display(OutputDev *out, double hDPI, double vDPI,
217 int rotate, GBool useMediaBox, GBool crop,
218 Links *links, Catalog *catalog,
219 GBool (*abortCheckCbk)(void *data),
220 void *abortCheckCbkData) {
221 displaySlice(out, hDPI, vDPI, rotate, useMediaBox, crop,
222 -1, -1, -1, -1, links, catalog,
223 abortCheckCbk, abortCheckCbkData);
226 void Page::displaySlice(OutputDev *out, double hDPI, double vDPI,
227 int rotate, GBool useMediaBox, GBool crop,
228 int sliceX, int sliceY, int sliceW, int sliceH,
229 Links *links, Catalog *catalog,
230 GBool (*abortCheckCbk)(void *data),
231 void *abortCheckCbkData) {
232 #ifndef PDF_PARSER_ONLY
233 PDFRectangle *mediaBox, *cropBox, *baseBox;
242 rotate += getRotate();
245 } else if (rotate < 0) {
249 mediaBox = getMediaBox();
250 cropBox = getCropBox();
251 if (sliceW >= 0 && sliceH >= 0) {
252 baseBox = useMediaBox ? mediaBox : cropBox;
256 if (out->upsideDown()) {
257 box.x1 = baseBox->x1 + ky * sliceY;
258 box.x2 = baseBox->x1 + ky * (sliceY + sliceH);
260 box.x1 = baseBox->x2 - ky * (sliceY + sliceH);
261 box.x2 = baseBox->x2 - ky * sliceY;
263 box.y1 = baseBox->y1 + kx * sliceX;
264 box.y2 = baseBox->y1 + kx * (sliceX + sliceW);
265 } else if (rotate == 180) {
266 box.x1 = baseBox->x2 - kx * (sliceX + sliceW);
267 box.x2 = baseBox->x2 - kx * sliceX;
268 if (out->upsideDown()) {
269 box.y1 = baseBox->y1 + ky * sliceY;
270 box.y2 = baseBox->y1 + ky * (sliceY + sliceH);
272 box.y1 = baseBox->y2 - ky * (sliceY + sliceH);
273 box.y2 = baseBox->y2 - ky * sliceY;
275 } else if (rotate == 270) {
276 if (out->upsideDown()) {
277 box.x1 = baseBox->x2 - ky * (sliceY + sliceH);
278 box.x2 = baseBox->x2 - ky * sliceY;
280 box.x1 = baseBox->x1 + ky * sliceY;
281 box.x2 = baseBox->x1 + ky * (sliceY + sliceH);
283 box.y1 = baseBox->y2 - kx * (sliceX + sliceW);
284 box.y2 = baseBox->y2 - kx * sliceX;
286 box.x1 = baseBox->x1 + kx * sliceX;
287 box.x2 = baseBox->x1 + kx * (sliceX + sliceW);
288 if (out->upsideDown()) {
289 box.y1 = baseBox->y2 - ky * (sliceY + sliceH);
290 box.y2 = baseBox->y2 - ky * sliceY;
292 box.y1 = baseBox->y1 + ky * sliceY;
293 box.y2 = baseBox->y1 + ky * (sliceY + sliceH);
296 } else if (useMediaBox) {
303 if (globalParams->getPrintCommands()) {
304 printf("***** MediaBox = ll:%g,%g ur:%g,%g\n",
305 mediaBox->x1, mediaBox->y1, mediaBox->x2, mediaBox->y2);
306 printf("***** CropBox = ll:%g,%g ur:%g,%g\n",
307 cropBox->x1, cropBox->y1, cropBox->x2, cropBox->y2);
308 printf("***** Rotate = %d\n", attrs->getRotate());
311 gfx = new Gfx(xref, out, num, attrs->getResourceDict(),
312 hDPI, vDPI, &box, crop ? cropBox : (PDFRectangle *)NULL,
313 rotate, abortCheckCbk, abortCheckCbkData);
314 contents.fetch(xref, &obj);
325 for (i = 0; i < links->getNumLinks(); ++i) {
326 link = links->getLink(i);
327 out->drawLink(link, catalog);
333 // draw non-link annotations
334 annotList = new Annots(xref, catalog, annots.fetch(xref, &obj));
336 if (annotList->getNumAnnots() > 0) {
337 if (globalParams->getPrintCommands()) {
338 printf("***** Annotations\n");
340 for (i = 0; i < annotList->getNumAnnots(); ++i) {
341 annotList->getAnnot(i)->draw(gfx);
351 void Page::getDefaultCTM(double *ctm, double hDPI, double vDPI,
352 int rotate, GBool upsideDown) {
356 rotate += getRotate();
359 } else if (rotate < 0) {
362 state = new GfxState(hDPI, vDPI, getMediaBox(), rotate, upsideDown);
363 for (i = 0; i < 6; ++i) {
364 ctm[i] = state->getCTM()[i];