X-Git-Url: http://git.asbjorn.biz/?a=blobdiff_plain;f=pdf2swf%2Fxpdf%2FPage.cc;h=6ef843358a4224f090a72f51a901c60d1fe09557;hb=refs%2Ftags%2Fxpdf-3-01;hp=c2ac6b190bdd2c1246d23ecb486ac8cf798dab72;hpb=fc554a43712b76d16b41ec77dd311b4a78b1ef6b;p=swftools.git

diff --git a/pdf2swf/xpdf/Page.cc b/pdf2swf/xpdf/Page.cc
index c2ac6b1..6ef8433 100644
--- a/pdf2swf/xpdf/Page.cc
+++ b/pdf2swf/xpdf/Page.cc
@@ -2,15 +2,18 @@
 //
 // Page.cc
 //
-// Copyright 1996 Derek B. Noonburg
+// Copyright 1996-2003 Glyph & Cog, LLC
 //
 //========================================================================
 
-#ifdef __GNUC__
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
 #pragma implementation
 #endif
 
 #include <stddef.h>
+#include "GlobalParams.h"
 #include "Object.h"
 #include "Array.h"
 #include "Dict.h"
@@ -19,11 +22,10 @@
 #include "OutputDev.h"
 #ifndef PDF_PARSER_ONLY
 #include "Gfx.h"
-#include "FormWidget.h"
+#include "GfxState.h"
+#include "Annot.h"
 #endif
 #include "Error.h"
-
-#include "Params.h"
 #include "Page.h"
 
 //------------------------------------------------------------------------
@@ -31,97 +33,67 @@
 //------------------------------------------------------------------------
 
 PageAttrs::PageAttrs(PageAttrs *attrs, Dict *dict) {
-  Object obj1, obj2;
-  double w, h;
+  Object obj1;
 
   // get old/default values
   if (attrs) {
-    x1 = attrs->x1;
-    y1 = attrs->y1;
-    x2 = attrs->x2;
-    y2 = attrs->y2;
-    cropX1 = attrs->cropX1;
-    cropY1 = attrs->cropY1;
-    cropX2 = attrs->cropX2;
-    cropY2 = attrs->cropY2;
+    mediaBox = attrs->mediaBox;
+    cropBox = attrs->cropBox;
+    haveCropBox = attrs->haveCropBox;
     rotate = attrs->rotate;
     attrs->resources.copy(&resources);
   } else {
     // set default MediaBox to 8.5" x 11" -- this shouldn't be necessary
     // but some (non-compliant) PDF files don't specify a MediaBox
-    x1 = 0;
-    y1 = 0;
-    x2 = 612;
-    y2 = 792;
-    cropX1 = cropY1 = cropX2 = cropY2 = 0;
+    mediaBox.x1 = 0;
+    mediaBox.y1 = 0;
+    mediaBox.x2 = 612;
+    mediaBox.y2 = 792;
+    cropBox.x1 = cropBox.y1 = cropBox.x2 = cropBox.y2 = 0;
+    haveCropBox = gFalse;
     rotate = 0;
     resources.initNull();
   }
 
   // media box
-  dict->lookup("MediaBox", &obj1);
-  if (obj1.isArray() && obj1.arrayGetLength() == 4) {
-    obj1.arrayGet(0, &obj2);
-    if (obj2.isNum())
-      x1 = obj2.getNum();
-    obj2.free();
-    obj1.arrayGet(1, &obj2);
-    if (obj2.isNum())
-      y1 = obj2.getNum();
-    obj2.free();
-    obj1.arrayGet(2, &obj2);
-    if (obj2.isNum())
-      x2 = obj2.getNum();
-    obj2.free();
-    obj1.arrayGet(3, &obj2);
-    if (obj2.isNum())
-      y2 = obj2.getNum();
-    obj2.free();
-  }
-  obj1.free();
+  readBox(dict, "MediaBox", &mediaBox);
 
   // crop box
-  dict->lookup("CropBox", &obj1);
-  if (obj1.isArray() && obj1.arrayGetLength() == 4) {
-    obj1.arrayGet(0, &obj2);
-    if (obj2.isNum())
-      cropX1 = obj2.getNum();
-    obj2.free();
-    obj1.arrayGet(1, &obj2);
-    if (obj2.isNum())
-      cropY1 = obj2.getNum();
-    obj2.free();
-    obj1.arrayGet(2, &obj2);
-    if (obj2.isNum())
-      cropX2 = obj2.getNum();
-    obj2.free();
-    obj1.arrayGet(3, &obj2);
-    if (obj2.isNum())
-      cropY2 = obj2.getNum();
-    obj2.free();
+  if (readBox(dict, "CropBox", &cropBox)) {
+    haveCropBox = gTrue;
   }
-  obj1.free();
-
-  // if the MediaBox is excessively larger than the CropBox,
-  // just use the CropBox
-  limitToCropBox = gFalse;
-  w = 0.25 * (cropX2 - cropX1);
-  h = 0.25 * (cropY2 - cropY1);
-  if (cropX2 > cropX1 &&
-      ((cropX1 - x1) + (x2 - cropX2) > w ||
-       (cropY1 - y1) + (y2 - cropY2) > h)) {
-    limitToCropBox = gTrue;
+  if (!haveCropBox) {
+    cropBox = mediaBox;
   }
 
+  // other boxes
+  bleedBox = cropBox;
+  readBox(dict, "BleedBox", &bleedBox);
+  trimBox = cropBox;
+  readBox(dict, "TrimBox", &trimBox);
+  artBox = cropBox;
+  readBox(dict, "ArtBox", &artBox);
+
   // rotate
   dict->lookup("Rotate", &obj1);
-  if (obj1.isInt())
+  if (obj1.isInt()) {
     rotate = obj1.getInt();
+  }
   obj1.free();
-  while (rotate < 0)
+  while (rotate < 0) {
     rotate += 360;
-  while (rotate >= 360)
+  }
+  while (rotate >= 360) {
     rotate -= 360;
+  }
+
+  // misc attributes
+  dict->lookup("LastModified", &lastModified);
+  dict->lookup("BoxColorInfo", &boxColorInfo);
+  dict->lookup("Group", &group);
+  dict->lookup("Metadata", &metadata);
+  dict->lookup("PieceInfo", &pieceInfo);
+  dict->lookup("SeparationInfo", &separationInfo);
 
   // resource dictionary
   dict->lookup("Resources", &obj1);
@@ -133,20 +105,79 @@ PageAttrs::PageAttrs(PageAttrs *attrs, Dict *dict) {
 }
 
 PageAttrs::~PageAttrs() {
+  lastModified.free();
+  boxColorInfo.free();
+  group.free();
+  metadata.free();
+  pieceInfo.free();
+  separationInfo.free();
   resources.free();
 }
 
+GBool PageAttrs::readBox(Dict *dict, char *key, PDFRectangle *box) {
+  PDFRectangle tmp;
+  double t;
+  Object obj1, obj2;
+  GBool ok;
+
+  dict->lookup(key, &obj1);
+  if (obj1.isArray() && obj1.arrayGetLength() == 4) {
+    ok = gTrue;
+    obj1.arrayGet(0, &obj2);
+    if (obj2.isNum()) {
+      tmp.x1 = obj2.getNum();
+    } else {
+      ok = gFalse;
+    }
+    obj2.free();
+    obj1.arrayGet(1, &obj2);
+    if (obj2.isNum()) {
+      tmp.y1 = obj2.getNum();
+    } else {
+      ok = gFalse;
+    }
+    obj2.free();
+    obj1.arrayGet(2, &obj2);
+    if (obj2.isNum()) {
+      tmp.x2 = obj2.getNum();
+    } else {
+      ok = gFalse;
+    }
+    obj2.free();
+    obj1.arrayGet(3, &obj2);
+    if (obj2.isNum()) {
+      tmp.y2 = obj2.getNum();
+    } else {
+      ok = gFalse;
+    }
+    obj2.free();
+    if (ok) {
+      if (tmp.x1 > tmp.x2) {
+	t = tmp.x1; tmp.x1 = tmp.x2; tmp.x2 = t;
+      }
+      if (tmp.y1 > tmp.y2) {
+	t = tmp.y1; tmp.y1 = tmp.y2; tmp.y2 = t;
+      }
+      *box = tmp;
+    }
+  } else {
+    ok = gFalse;
+  }
+  obj1.free();
+  return ok;
+}
+
 //------------------------------------------------------------------------
 // Page
 //------------------------------------------------------------------------
 
-Page::Page(int num1, Dict *pageDict, PageAttrs *attrs1) {
-
+Page::Page(XRef *xrefA, int numA, Dict *pageDict, PageAttrs *attrsA) {
   ok = gTrue;
-  num = num1;
+  xref = xrefA;
+  num = numA;
 
   // get attributes
-  attrs = attrs1;
+  attrs = attrsA;
 
   // annotations
   pageDict->lookupNF("Annots", &annots);
@@ -182,24 +213,31 @@ Page::~Page() {
   contents.free();
 }
 
-void Page::display(OutputDev *out, double dpi, int rotate,
-		   Links *links, Catalog *catalog) {
+void Page::display(OutputDev *out, double hDPI, double vDPI,
+		   int rotate, GBool useMediaBox, GBool crop,
+		   Links *links, Catalog *catalog,
+		   GBool (*abortCheckCbk)(void *data),
+		   void *abortCheckCbkData) {
+  displaySlice(out, hDPI, vDPI, rotate, useMediaBox, crop,
+	       -1, -1, -1, -1, links, catalog,
+	       abortCheckCbk, abortCheckCbkData);
+}
+
+void Page::displaySlice(OutputDev *out, double hDPI, double vDPI,
+			int rotate, GBool useMediaBox, GBool crop,
+			int sliceX, int sliceY, int sliceW, int sliceH,
+			Links *links, Catalog *catalog,
+			GBool (*abortCheckCbk)(void *data),
+			void *abortCheckCbkData) {
 #ifndef PDF_PARSER_ONLY
+  PDFRectangle *mediaBox, *cropBox, *baseBox;
+  PDFRectangle box;
   Gfx *gfx;
   Object obj;
   Link *link;
+  Annots *annotList;
+  double kx, ky;
   int i;
-  FormWidgets *formWidgets;
-
-  if (printCommands) {
-    printf("***** MediaBox = ll:%g,%g ur:%g,%g\n",
-	   getX1(), getY1(), getX2(), getY2());
-    if (isCropped()) {
-      printf("***** CropBox = ll:%g,%g ur:%g,%g\n",
-	     getCropX1(), getCropY1(), getCropX2(), getCropY2());
-    }
-    printf("***** Rotate = %d\n", attrs->getRotate());
-  }
 
   rotate += getRotate();
   if (rotate >= 360) {
@@ -207,39 +245,123 @@ void Page::display(OutputDev *out, double dpi, int rotate,
   } else if (rotate < 0) {
     rotate += 360;
   }
-  gfx = new Gfx(out, num, attrs->getResourceDict(),
-		dpi, getX1(), getY1(), getX2(), getY2(), isCropped(),
-		getCropX1(), getCropY1(), getCropX2(), getCropY2(), rotate);
-  contents.fetch(&obj);
+
+  mediaBox = getMediaBox();
+  cropBox = getCropBox();
+  if (sliceW >= 0 && sliceH >= 0) {
+    baseBox = useMediaBox ? mediaBox : cropBox;
+    kx = 72.0 / hDPI;
+    ky = 72.0 / vDPI;
+    if (rotate == 90) {
+      if (out->upsideDown()) {
+	box.x1 = baseBox->x1 + ky * sliceY;
+	box.x2 = baseBox->x1 + ky * (sliceY + sliceH);
+      } else {
+	box.x1 = baseBox->x2 - ky * (sliceY + sliceH);
+	box.x2 = baseBox->x2 - ky * sliceY;
+      }
+      box.y1 = baseBox->y1 + kx * sliceX;
+      box.y2 = baseBox->y1 + kx * (sliceX + sliceW);
+    } else if (rotate == 180) {
+      box.x1 = baseBox->x2 - kx * (sliceX + sliceW);
+      box.x2 = baseBox->x2 - kx * sliceX;
+      if (out->upsideDown()) {
+	box.y1 = baseBox->y1 + ky * sliceY;
+	box.y2 = baseBox->y1 + ky * (sliceY + sliceH);
+      } else {
+	box.y1 = baseBox->y2 - ky * (sliceY + sliceH);
+	box.y2 = baseBox->y2 - ky * sliceY;
+      }
+    } else if (rotate == 270) {
+      if (out->upsideDown()) {
+	box.x1 = baseBox->x2 - ky * (sliceY + sliceH);
+	box.x2 = baseBox->x2 - ky * sliceY;
+      } else {
+	box.x1 = baseBox->x1 + ky * sliceY;
+	box.x2 = baseBox->x1 + ky * (sliceY + sliceH);
+      }
+      box.y1 = baseBox->y2 - kx * (sliceX + sliceW);
+      box.y2 = baseBox->y2 - kx * sliceX;
+    } else {
+      box.x1 = baseBox->x1 + kx * sliceX;
+      box.x2 = baseBox->x1 + kx * (sliceX + sliceW);
+      if (out->upsideDown()) {
+	box.y1 = baseBox->y2 - ky * (sliceY + sliceH);
+	box.y2 = baseBox->y2 - ky * sliceY;
+      } else {
+	box.y1 = baseBox->y1 + ky * sliceY;
+	box.y2 = baseBox->y1 + ky * (sliceY + sliceH);
+      }
+    }
+  } else if (useMediaBox) {
+    box = *mediaBox;
+  } else {
+    box = *cropBox;
+    crop = gFalse;
+  }
+
+  if (globalParams->getPrintCommands()) {
+    printf("***** MediaBox = ll:%g,%g ur:%g,%g\n",
+	   mediaBox->x1, mediaBox->y1, mediaBox->x2, mediaBox->y2);
+    printf("***** CropBox = ll:%g,%g ur:%g,%g\n",
+	   cropBox->x1, cropBox->y1, cropBox->x2, cropBox->y2);
+    printf("***** Rotate = %d\n", attrs->getRotate());
+  }
+
+  gfx = new Gfx(xref, out, num, attrs->getResourceDict(),
+		hDPI, vDPI, &box, crop ? cropBox : (PDFRectangle *)NULL,
+		rotate, abortCheckCbk, abortCheckCbkData);
+  contents.fetch(xref, &obj);
   if (!obj.isNull()) {
+    gfx->saveState();
     gfx->display(&obj);
+    gfx->restoreState();
   }
   obj.free();
 
   // draw links
   if (links) {
+    gfx->saveState();
     for (i = 0; i < links->getNumLinks(); ++i) {
       link = links->getLink(i);
       out->drawLink(link, catalog);
     }
+    gfx->restoreState();
     out->dump();
   }
 
-  // draw AcroForm widgets
-  //~ need to reset CTM ???
-  formWidgets = new FormWidgets(annots.fetch(&obj));
+  // draw non-link annotations
+  annotList = new Annots(xref, catalog, annots.fetch(xref, &obj));
   obj.free();
-  if (printCommands && formWidgets->getNumWidgets() > 0) {
-    printf("***** AcroForm widgets\n");
-  }
-  for (i = 0; i < formWidgets->getNumWidgets(); ++i) {
-    formWidgets->getWidget(i)->draw(gfx);
-  }
-  if (formWidgets->getNumWidgets() > 0) {
+  if (annotList->getNumAnnots() > 0) {
+    if (globalParams->getPrintCommands()) {
+      printf("***** Annotations\n");
+    }
+    for (i = 0; i < annotList->getNumAnnots(); ++i) {
+      annotList->getAnnot(i)->draw(gfx);
+    }
     out->dump();
   }
-  delete formWidgets;
+  delete annotList;
 
   delete gfx;
 #endif
 }
+
+void Page::getDefaultCTM(double *ctm, double hDPI, double vDPI,
+			 int rotate, GBool upsideDown) {
+  GfxState *state;
+  int i;
+
+  rotate += getRotate();
+  if (rotate >= 360) {
+    rotate -= 360;
+  } else if (rotate < 0) {
+    rotate += 360;
+  }
+  state = new GfxState(hDPI, vDPI, getMediaBox(), rotate, upsideDown);
+  for (i = 0; i < 6; ++i) {
+    ctm[i] = state->getCTM()[i];
+  }
+  delete state;
+}