# include <config.h>
#endif
+#define PANGO_ENABLE_BACKEND /* to access PangoFcFont.font_pattern */
+
#include <gtk/gtk.h>
#include <libgnomecanvas/libgnomecanvas.h>
#include <libgnomeprint/gnome-print-job.h>
+#include <libgnomeprint/gnome-print-pango.h>
+#include <zlib.h>
+#include <string.h>
+#include <locale.h>
+#include <pango/pango.h>
+#include <pango/pangofc-font.h>
+#include <fontconfig/fontconfig.h>
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include "sft.h" /* Sun Font Tools, embedded in libgnomeprint */
#include "xournal.h"
+#include "xo-support.h"
#include "xo-misc.h"
#include "xo-paint.h"
#include "xo-print.h"
#define RGBA_ALPHA(rgba) (((rgba>>0)&0xff)/255.0)
#define RGBA_RGB(rgba) RGBA_RED(rgba), RGBA_GREEN(rgba), RGBA_BLUE(rgba)
+/*********** Printing to PDF ************/
+
+gboolean ispdfspace(char c)
+{
+ return (c==0 || c==9 || c==10 || c==12 || c==13 || c==' ');
+}
+
+gboolean ispdfdelim(char c)
+{
+ return (c=='(' || c==')' || c=='<' || c=='>' || c=='[' || c==']' ||
+ c=='{' || c=='}' || c=='/' || c=='%');
+}
+
+void skipspace(char **p, char *eof)
+{
+ while (ispdfspace(**p) || **p=='%') {
+ if (**p=='%') while (*p!=eof && **p!=10 && **p!=13) (*p)++;
+ if (*p==eof) return;
+ (*p)++;
+ }
+}
+
+void free_pdfobj(struct PdfObj *obj)
+{
+ int i;
+
+ if (obj==NULL) return;
+ if ((obj->type == PDFTYPE_STRING || obj->type == PDFTYPE_NAME ||
+ obj->type == PDFTYPE_STREAM) && obj->str!=NULL)
+ g_free(obj->str);
+ if ((obj->type == PDFTYPE_ARRAY || obj->type == PDFTYPE_DICT ||
+ obj->type == PDFTYPE_STREAM) && obj->num>0) {
+ for (i=0; i<obj->num; i++)
+ free_pdfobj(obj->elts[i]);
+ g_free(obj->elts);
+ }
+ if ((obj->type == PDFTYPE_DICT || obj->type == PDFTYPE_STREAM) && obj->num>0) {
+ for (i=0; i<obj->num; i++)
+ g_free(obj->names[i]);
+ g_free(obj->names);
+ }
+ g_free(obj);
+}
+
+struct PdfObj *dup_pdfobj(struct PdfObj *obj)
+{
+ struct PdfObj *dup;
+ int i;
+
+ if (obj==NULL) return NULL;
+ dup = g_memdup(obj, sizeof(struct PdfObj));
+ if ((obj->type == PDFTYPE_STRING || obj->type == PDFTYPE_NAME ||
+ obj->type == PDFTYPE_STREAM) && obj->str!=NULL) {
+ if (obj->type == PDFTYPE_NAME) obj->len = strlen(obj->str);
+ dup->str = g_memdup(obj->str, obj->len+1);
+ }
+ if ((obj->type == PDFTYPE_ARRAY || obj->type == PDFTYPE_DICT ||
+ obj->type == PDFTYPE_STREAM) && obj->num>0) {
+ dup->elts = g_malloc(obj->num*sizeof(struct PdfObj *));
+ for (i=0; i<obj->num; i++)
+ dup->elts[i] = dup_pdfobj(obj->elts[i]);
+ }
+ if ((obj->type == PDFTYPE_DICT || obj->type == PDFTYPE_STREAM) && obj->num>0) {
+ dup->names = g_malloc(obj->num*sizeof(char *));
+ for (i=0; i<obj->num; i++)
+ dup->names[i] = g_strdup(obj->names[i]);
+ }
+ return dup;
+}
+
+void show_pdfobj(struct PdfObj *obj, GString *str)
+{
+ int i;
+ if (obj==NULL) return;
+ switch(obj->type) {
+ case PDFTYPE_CST:
+ if (obj->intval==1) g_string_append(str, "true");
+ if (obj->intval==0) g_string_append(str, "false");
+ if (obj->intval==-1) g_string_append(str, "null");
+ break;
+ case PDFTYPE_INT:
+ g_string_append_printf(str, "%d", obj->intval);
+ break;
+ case PDFTYPE_REAL:
+ g_string_append_printf(str, "%f", obj->realval);
+ break;
+ case PDFTYPE_STRING:
+ g_string_append_len(str, obj->str, obj->len);
+ break;
+ case PDFTYPE_NAME:
+ g_string_append(str, obj->str);
+ break;
+ case PDFTYPE_ARRAY:
+ g_string_append_c(str, '[');
+ for (i=0;i<obj->num;i++) {
+ if (i) g_string_append_c(str, ' ');
+ show_pdfobj(obj->elts[i], str);
+ }
+ g_string_append_c(str, ']');
+ break;
+ case PDFTYPE_DICT:
+ g_string_append(str, "<<");
+ for (i=0;i<obj->num;i++) {
+ g_string_append_printf(str, " %s ", obj->names[i]);
+ show_pdfobj(obj->elts[i], str);
+ }
+ g_string_append(str, " >>");
+ break;
+ case PDFTYPE_REF:
+ g_string_append_printf(str, "%d %d R", obj->intval, obj->num);
+ break;
+ }
+}
+
+void DEBUG_PRINTOBJ(struct PdfObj *obj)
+{
+ GString *s = g_string_new("");
+ show_pdfobj(obj, s);
+ puts(s->str);
+ g_string_free(s, TRUE);
+}
+
+// parse a PDF object; returns NULL if fails
+// THIS PARSER DOES NOT RECOGNIZE STREAMS YET
+
+struct PdfObj *parse_pdf_object(char **ptr, char *eof)
+{
+ struct PdfObj *obj, *elt;
+ char *p, *q, *r, *eltname;
+ int stack;
+
+ obj = g_malloc(sizeof(struct PdfObj));
+ p = *ptr;
+ skipspace(&p, eof);
+ if (p==eof) { g_free(obj); return NULL; }
+
+ // maybe a constant
+ if (!strncmp(p, "true", 4)) {
+ obj->type = PDFTYPE_CST;
+ obj->intval = 1;
+ *ptr = p+4;
+ return obj;
+ }
+ if (!strncmp(p, "false", 5)) {
+ obj->type = PDFTYPE_CST;
+ obj->intval = 0;
+ *ptr = p+5;
+ return obj;
+ }
+ if (!strncmp(p, "null", 4)) {
+ obj->type = PDFTYPE_CST;
+ obj->intval = -1;
+ *ptr = p+4;
+ return obj;
+ }
+
+ // or a number ?
+ obj->intval = strtol(p, &q, 10);
+ *ptr = q;
+ if (q!=p) {
+ if (*q == '.') {
+ obj->type = PDFTYPE_REAL;
+ obj->realval = g_ascii_strtod(p, ptr);
+ return obj;
+ }
+ if (ispdfspace(*q)) {
+ // check for indirect reference
+ skipspace(&q, eof);
+ obj->num = strtol(q, &r, 10);
+ if (r!=q) {
+ skipspace(&r, eof);
+ if (*r=='R') {
+ *ptr = r+1;
+ obj->type = PDFTYPE_REF;
+ return obj;
+ }
+ }
+ }
+ obj->type = PDFTYPE_INT;
+ return obj;
+ }
+
+ // a string ?
+ if (*p=='(') {
+ q=p+1; stack=1;
+ while (stack>0 && q!=eof) {
+ if (*q=='(') stack++;
+ if (*q==')') stack--;
+ if (*q=='\\') q++;
+ if (q!=eof) q++;
+ }
+ if (q==eof) { g_free(obj); return NULL; }
+ obj->type = PDFTYPE_STRING;
+ obj->len = q-p;
+ obj->str = g_malloc(obj->len+1);
+ obj->str[obj->len] = 0;
+ g_memmove(obj->str, p, obj->len);
+ *ptr = q;
+ return obj;
+ }
+ if (*p=='<' && p[1]!='<') {
+ q=p+1;
+ while (*q!='>' && q!=eof) q++;
+ if (q==eof) { g_free(obj); return NULL; }
+ q++;
+ obj->type = PDFTYPE_STRING;
+ obj->len = q-p;
+ obj->str = g_malloc(obj->len+1);
+ obj->str[obj->len] = 0;
+ g_memmove(obj->str, p, obj->len);
+ *ptr = q;
+ return obj;
+ }
+
+ // a name ?
+ if (*p=='/') {
+ q=p+1;
+ while (!ispdfspace(*q) && !ispdfdelim(*q)) q++;
+ obj->type = PDFTYPE_NAME;
+ obj->str = g_strndup(p, q-p);
+ *ptr = q;
+ return obj;
+ }
+
+ // an array ?
+ if (*p=='[') {
+ obj->type = PDFTYPE_ARRAY;
+ obj->num = 0;
+ obj->elts = NULL;
+ q=p+1; skipspace(&q, eof);
+ while (*q!=']') {
+ elt = parse_pdf_object(&q, eof);
+ if (elt==NULL) { free_pdfobj(obj); return NULL; }
+ obj->num++;
+ obj->elts = g_realloc(obj->elts, obj->num*sizeof(struct PdfObj *));
+ obj->elts[obj->num-1] = elt;
+ skipspace(&q, eof);
+ }
+ *ptr = q+1;
+ return obj;
+ }
+
+ // a dictionary ?
+ if (*p=='<' && p[1]=='<') {
+ obj->type = PDFTYPE_DICT;
+ obj->num = 0;
+ obj->elts = NULL;
+ obj->names = NULL;
+ q=p+2; skipspace(&q, eof);
+ while (*q!='>' || q[1]!='>') {
+ if (*q!='/') { free_pdfobj(obj); return NULL; }
+ r=q+1;
+ while (!ispdfspace(*r) && !ispdfdelim(*r)) r++;
+ eltname = g_strndup(q, r-q);
+ q=r; skipspace(&q, eof);
+ elt = parse_pdf_object(&q, eof);
+ if (elt==NULL) { g_free(eltname); free_pdfobj(obj); return NULL; }
+ obj->num++;
+ obj->elts = g_realloc(obj->elts, obj->num*sizeof(struct PdfObj *));
+ obj->names = g_realloc(obj->names, obj->num*sizeof(char *));
+ obj->elts[obj->num-1] = elt;
+ obj->names[obj->num-1] = eltname;
+ skipspace(&q, eof);
+ }
+ *ptr = q+2;
+ return obj;
+ }
+
+ // DOES NOT RECOGNIZE STREAMS YET (handle as subcase of dictionary)
+
+ g_free(obj);
+ return NULL;
+}
+
+struct PdfObj *get_dict_entry(struct PdfObj *dict, char *name)
+{
+ int i;
+
+ if (dict==NULL) return NULL;
+ if (dict->type != PDFTYPE_DICT) return NULL;
+ for (i=0; i<dict->num; i++)
+ if (!strcmp(dict->names[i], name)) return dict->elts[i];
+ return NULL;
+}
+
+struct PdfObj *get_pdfobj(GString *pdfbuf, struct XrefTable *xref, struct PdfObj *obj)
+{
+ char *p, *eof;
+ int offs, n;
+
+ if (obj==NULL) return NULL;
+ if (obj->type!=PDFTYPE_REF) return dup_pdfobj(obj);
+ if (obj->intval>xref->last) return NULL;
+ offs = xref->data[obj->intval];
+ if (offs<=0 || offs >= pdfbuf->len) return NULL;
+
+ p = pdfbuf->str + offs;
+ eof = pdfbuf->str + pdfbuf->len;
+ n = strtol(p, &p, 10);
+ if (n!=obj->intval) return NULL;
+ skipspace(&p, eof);
+ n = strtol(p, &p, 10);
+ skipspace(&p, eof);
+ if (strncmp(p, "obj", 3)) return NULL;
+ p+=3;
+ return parse_pdf_object(&p, eof);
+}
+
+// read the xref table of a PDF file in memory, and return the trailerdict
+
+struct PdfObj *parse_xref_table(GString *pdfbuf, struct XrefTable *xref, int offs)
+{
+ char *p, *eof;
+ struct PdfObj *trailerdict, *obj;
+ int start, len, i;
+
+ if (strncmp(pdfbuf->str+offs, "xref", 4)) return NULL;
+ p = strstr(pdfbuf->str+offs, "trailer");
+ eof = pdfbuf->str + pdfbuf->len;
+ if (p==NULL) return NULL;
+ p+=8;
+ trailerdict = parse_pdf_object(&p, eof);
+ obj = get_dict_entry(trailerdict, "/Size");
+ if (obj!=NULL && obj->type == PDFTYPE_INT && obj->intval-1>xref->last)
+ make_xref(xref, obj->intval-1, 0);
+ obj = get_dict_entry(trailerdict, "/Prev");
+ if (obj!=NULL && obj->type == PDFTYPE_INT && obj->intval>0 && obj->intval!=offs) {
+ // recurse into older xref table
+ obj = parse_xref_table(pdfbuf, xref, obj->intval);
+ free_pdfobj(obj);
+ }
+ p = pdfbuf->str+offs+4;
+ skipspace(&p, eof);
+ if (*p<'0' || *p>'9') { free_pdfobj(trailerdict); return NULL; }
+ while (*p>='0' && *p<='9') {
+ start = strtol(p, &p, 10);
+ skipspace(&p, eof);
+ len = strtol(p, &p, 10);
+ skipspace(&p, eof);
+ if (len <= 0 || 20*len > eof-p) break;
+ if (start+len-1 > xref->last) make_xref(xref, start+len-1, 0);
+ for (i=start; i<start+len; i++) {
+ xref->data[i] = strtol(p, NULL, 10);
+ p+=20;
+ }
+ skipspace(&p, eof);
+ }
+ if (*p!='t') { free_pdfobj(trailerdict); return NULL; }
+ return trailerdict;
+}
+
+// parse the page tree
+
+int pdf_getpageinfo(GString *pdfbuf, struct XrefTable *xref,
+ struct PdfObj *pgtree, int nmax, struct PdfPageDesc *pages)
+{
+ struct PdfObj *obj, *kid;
+ int i, count, j;
+
+ obj = get_pdfobj(pdfbuf, xref, get_dict_entry(pgtree, "/Type"));
+ if (obj == NULL || obj->type != PDFTYPE_NAME)
+ return 0;
+ if (!strcmp(obj->str, "/Page")) {
+ free_pdfobj(obj);
+ pages->contents = dup_pdfobj(get_dict_entry(pgtree, "/Contents"));
+ obj = get_pdfobj(pdfbuf, xref, get_dict_entry(pgtree, "/Resources"));
+ if (obj!=NULL) {
+ free_pdfobj(pages->resources);
+ pages->resources = obj;
+ }
+ obj = get_pdfobj(pdfbuf, xref, get_dict_entry(pgtree, "/MediaBox"));
+ if (obj!=NULL) {
+ free_pdfobj(pages->mediabox);
+ pages->mediabox = obj;
+ }
+ obj = get_pdfobj(pdfbuf, xref, get_dict_entry(pgtree, "/Rotate"));
+ if (obj!=NULL && obj->type == PDFTYPE_INT)
+ pages->rotate = obj->intval;
+ free_pdfobj(obj);
+ return 1;
+ }
+ else if (!strcmp(obj->str, "/Pages")) {
+ free_pdfobj(obj);
+ obj = get_pdfobj(pdfbuf, xref, get_dict_entry(pgtree, "/Count"));
+ if (obj!=NULL && obj->type == PDFTYPE_INT &&
+ obj->intval>0 && obj->intval<=nmax) count = obj->intval;
+ else count = 0;
+ free_pdfobj(obj);
+ obj = get_pdfobj(pdfbuf, xref, get_dict_entry(pgtree, "/Resources"));
+ if (obj!=NULL)
+ for (i=0; i<count; i++) {
+ free_pdfobj(pages[i].resources);
+ pages[i].resources = dup_pdfobj(obj);
+ }
+ free_pdfobj(obj);
+ obj = get_pdfobj(pdfbuf, xref, get_dict_entry(pgtree, "/MediaBox"));
+ if (obj!=NULL)
+ for (i=0; i<count; i++) {
+ free_pdfobj(pages[i].mediabox);
+ pages[i].mediabox = dup_pdfobj(obj);
+ }
+ free_pdfobj(obj);
+ obj = get_pdfobj(pdfbuf, xref, get_dict_entry(pgtree, "/Rotate"));
+ if (obj!=NULL && obj->type == PDFTYPE_INT)
+ for (i=0; i<count; i++)
+ pages[i].rotate = obj->intval;
+ free_pdfobj(obj);
+ obj = get_pdfobj(pdfbuf, xref, get_dict_entry(pgtree, "/Kids"));
+ if (obj!=NULL && obj->type == PDFTYPE_ARRAY) {
+ for (i=0; i<obj->num; i++) {
+ kid = get_pdfobj(pdfbuf, xref, obj->elts[i]);
+ if (kid!=NULL) {
+ j = pdf_getpageinfo(pdfbuf, xref, kid, nmax, pages);
+ nmax -= j;
+ pages += j;
+ free_pdfobj(kid);
+ }
+ }
+ }
+ free_pdfobj(obj);
+ return count;
+ }
+ return 0;
+}
+
+// parse a PDF file in memory
+
+gboolean pdf_parse_info(GString *pdfbuf, struct PdfInfo *pdfinfo, struct XrefTable *xref)
+{
+ char *p;
+ int offs;
+ struct PdfObj *obj, *pages;
+
+ xref->n_alloc = xref->last = 0;
+ xref->data = NULL;
+ p = pdfbuf->str + pdfbuf->len-1;
+
+ while (*p!='s' && p!=pdfbuf->str) p--;
+ if (strncmp(p, "startxref", 9)) return FALSE; // fail
+ p+=9;
+ while (ispdfspace(*p) && p!=pdfbuf->str+pdfbuf->len) p++;
+ offs = strtol(p, NULL, 10);
+ if (offs <= 0 || offs > pdfbuf->len) return FALSE; // fail
+ pdfinfo->startxref = offs;
+
+ pdfinfo->trailerdict = parse_xref_table(pdfbuf, xref, offs);
+ if (pdfinfo->trailerdict == NULL) return FALSE; // fail
+
+ obj = get_pdfobj(pdfbuf, xref,
+ get_dict_entry(pdfinfo->trailerdict, "/Root"));
+ if (obj == NULL)
+ { free_pdfobj(pdfinfo->trailerdict); return FALSE; }
+ pages = get_pdfobj(pdfbuf, xref, get_dict_entry(obj, "/Pages"));
+ free_pdfobj(obj);
+ if (pages == NULL)
+ { free_pdfobj(pdfinfo->trailerdict); return FALSE; }
+ obj = get_pdfobj(pdfbuf, xref, get_dict_entry(pages, "/Count"));
+ if (obj == NULL || obj->type != PDFTYPE_INT || obj->intval<=0)
+ { free_pdfobj(pdfinfo->trailerdict); free_pdfobj(pages);
+ free_pdfobj(obj); return FALSE; }
+ pdfinfo->npages = obj->intval;
+ free_pdfobj(obj);
+
+ pdfinfo->pages = g_malloc0(pdfinfo->npages*sizeof(struct PdfPageDesc));
+ pdf_getpageinfo(pdfbuf, xref, pages, pdfinfo->npages, pdfinfo->pages);
+ free_pdfobj(pages);
+
+ return TRUE;
+}
+
+// add an entry to the xref table
+
+void make_xref(struct XrefTable *xref, int nobj, int offset)
+{
+ if (xref->n_alloc <= nobj) {
+ xref->n_alloc = nobj + 10;
+ xref->data = g_realloc(xref->data, xref->n_alloc*sizeof(int));
+ }
+ if (xref->last < nobj) xref->last = nobj;
+ xref->data[nobj] = offset;
+}
+
+// a wrapper for deflate
+
+GString *do_deflate(char *in, int len)
+{
+ GString *out;
+ z_stream zs;
+
+ zs.zalloc = Z_NULL;
+ zs.zfree = Z_NULL;
+ deflateInit(&zs, Z_DEFAULT_COMPRESSION);
+ zs.next_in = (Bytef *)in;
+ zs.avail_in = len;
+ zs.avail_out = deflateBound(&zs, len);
+ out = g_string_sized_new(zs.avail_out);
+ zs.next_out = (Bytef *)out->str;
+ deflate(&zs, Z_FINISH);
+ out->len = zs.total_out;
+ deflateEnd(&zs);
+ return out;
+}
+
+// prefix to scale the original page
+
+GString *make_pdfprefix(struct PdfPageDesc *pgdesc, double width, double height)
+{
+ GString *str;
+ double v[4], t, xscl, yscl;
+ int i;
+
+ // push 3 times in case code to be annotated has unbalanced q/Q (B of A., ...)
+ str = g_string_new("q q q ");
+ if (pgdesc->rotate == 90) {
+ g_string_append_printf(str, "0 -1 1 0 0 %.2f cm ", height);
+ t = height; height = width; width = t;
+ }
+ if (pgdesc->rotate == 270) {
+ g_string_append_printf(str, "0 1 -1 0 %.2f 0 cm ", width);
+ t = height; height = width; width = t;
+ }
+ if (pgdesc->rotate == 180) {
+ g_string_append_printf(str, "-1 0 0 -1 %.2f %.2f cm ", width, height);
+ }
+ if (pgdesc->mediabox==NULL || pgdesc->mediabox->type != PDFTYPE_ARRAY ||
+ pgdesc->mediabox->num != 4) return str;
+ for (i=0; i<4; i++) {
+ if (pgdesc->mediabox->elts[i]->type == PDFTYPE_INT)
+ v[i] = pgdesc->mediabox->elts[i]->intval;
+ else if (pgdesc->mediabox->elts[i]->type == PDFTYPE_REAL)
+ v[i] = pgdesc->mediabox->elts[i]->realval;
+ else return str;
+ }
+ if (v[0]>v[2]) { t = v[0]; v[0] = v[2]; v[2] = t; }
+ if (v[1]>v[3]) { t = v[1]; v[1] = v[3]; v[3] = t; }
+ if (v[2]-v[0] < 1. || v[3]-v[1] < 1.) return str;
+ xscl = width/(v[2]-v[0]);
+ yscl = height/(v[3]-v[1]);
+ g_string_append_printf(str, "%.4f 0 0 %.4f %.2f %.2f cm ",
+ xscl, yscl, -v[0]*xscl, -v[1]*yscl);
+ return str;
+}
+
+// add an entry to a subentry of a directory
+
+struct PdfObj *mk_pdfname(char *name)
+{
+ struct PdfObj *obj;
+
+ obj = g_malloc(sizeof(struct PdfObj));
+ obj->type = PDFTYPE_NAME;
+ obj->str = g_strdup(name);
+ return obj;
+}
+
+struct PdfObj *mk_pdfref(int num)
+{
+ struct PdfObj *obj;
+
+ obj = g_malloc(sizeof(struct PdfObj));
+ obj->type = PDFTYPE_REF;
+ obj->intval = num;
+ obj->num = 0;
+ return obj;
+}
+
+gboolean iseq_obj(struct PdfObj *a, struct PdfObj *b)
+{
+ if (a==NULL || b==NULL) return (a==b);
+ if (a->type!=b->type) return FALSE;
+ if (a->type == PDFTYPE_CST || a->type == PDFTYPE_INT)
+ return (a->intval == b->intval);
+ if (a->type == PDFTYPE_REAL)
+ return (a->realval == b->realval);
+ if (a->type == PDFTYPE_NAME)
+ return !strcmp(a->str, b->str);
+ if (a->type == PDFTYPE_REF)
+ return (a->intval == b->intval && a->num == b->num);
+ return FALSE;
+}
+
+void add_dict_subentry(GString *pdfbuf, struct XrefTable *xref,
+ struct PdfObj *obj, char *section, int type, char *name, struct PdfObj *entry)
+{
+ struct PdfObj *sec;
+ int i, subpos;
+
+ subpos = -1;
+ for (i=0; i<obj->num; i++)
+ if (!strcmp(obj->names[i], section)) subpos = i;
+ if (subpos == -1) {
+ subpos = obj->num;
+ obj->num++;
+ obj->elts = g_realloc(obj->elts, obj->num*sizeof(struct PdfObj*));
+ obj->names = g_realloc(obj->names, obj->num*sizeof(char *));
+ obj->names[subpos] = g_strdup(section);
+ obj->elts[subpos] = NULL;
+ }
+ if (obj->elts[subpos]!=NULL && obj->elts[subpos]->type==PDFTYPE_REF) {
+ sec = get_pdfobj(pdfbuf, xref, obj->elts[subpos]);
+ free_pdfobj(obj->elts[subpos]);
+ obj->elts[subpos] = sec;
+ }
+ if (obj->elts[subpos]!=NULL && obj->elts[subpos]->type!=type)
+ { free_pdfobj(obj->elts[subpos]); obj->elts[subpos] = NULL; }
+ if (obj->elts[subpos] == NULL) {
+ obj->elts[subpos] = sec = g_malloc(sizeof(struct PdfObj));
+ sec->type = type;
+ sec->num = 0;
+ sec->elts = NULL;
+ sec->names = NULL;
+ }
+ sec = obj->elts[subpos];
+
+ subpos = -1;
+ if (type==PDFTYPE_DICT) {
+ for (i=0; i<sec->num; i++)
+ if (!strcmp(sec->names[i], name)) subpos = i;
+ if (subpos == -1) {
+ subpos = sec->num;
+ sec->num++;
+ sec->elts = g_realloc(sec->elts, sec->num*sizeof(struct PdfObj*));
+ sec->names = g_realloc(sec->names, sec->num*sizeof(char *));
+ sec->names[subpos] = g_strdup(name);
+ sec->elts[subpos] = NULL;
+ }
+ free_pdfobj(sec->elts[subpos]);
+ sec->elts[subpos] = entry;
+ }
+ if (type==PDFTYPE_ARRAY) {
+ for (i=0; i<sec->num; i++)
+ if (iseq_obj(sec->elts[i], entry)) subpos = i;
+ if (subpos == -1) {
+ subpos = sec->num;
+ sec->num++;
+ sec->elts = g_realloc(sec->elts, sec->num*sizeof(struct PdfObj*));
+ sec->elts[subpos] = entry;
+ }
+ else free_pdfobj(entry);
+ }
+}
+
+// draw a page's background
+
+void pdf_draw_solid_background(struct Page *pg, GString *str)
+{
+ double x, y;
+
+ g_string_append_printf(str,
+ "%.2f %.2f %.2f rg 0 0 %.2f %.2f re f ",
+ RGBA_RGB(pg->bg->color_rgba), pg->width, pg->height);
+ if (!ui.print_ruling) return;
+ if (pg->bg->ruling == RULING_NONE) return;
+ g_string_append_printf(str,
+ "%.2f %.2f %.2f RG %.2f w ",
+ RGBA_RGB(RULING_COLOR), RULING_THICKNESS);
+ if (pg->bg->ruling == RULING_GRAPH) {
+ for (x=RULING_GRAPHSPACING; x<pg->width-1; x+=RULING_GRAPHSPACING)
+ g_string_append_printf(str, "%.2f 0 m %.2f %.2f l S ",
+ x, x, pg->height);
+ for (y=RULING_GRAPHSPACING; y<pg->height-1; y+=RULING_GRAPHSPACING)
+ g_string_append_printf(str, "0 %.2f m %.2f %.2f l S ",
+ y, pg->width, y);
+ return;
+ }
+ for (y=RULING_TOPMARGIN; y<pg->height-1; y+=RULING_SPACING)
+ g_string_append_printf(str, "0 %.2f m %.2f %.2f l S ",
+ y, pg->width, y);
+ if (pg->bg->ruling == RULING_LINED)
+ g_string_append_printf(str,
+ "%.2f %.2f %.2f RG %.2f 0 m %.2f %.2f l S ",
+ RGBA_RGB(RULING_MARGIN_COLOR),
+ RULING_LEFTMARGIN, RULING_LEFTMARGIN, pg->height);
+}
+
+int pdf_draw_bitmap_background(struct Page *pg, GString *str,
+ struct XrefTable *xref, GString *pdfbuf)
+{
+ BgPdfPage *pgpdf;
+ GdkPixbuf *pix;
+ GString *zpix;
+ PopplerPage *pdfpage;
+ char *buf, *p1, *p2;
+ int height, width, stride, x, y, chan;
+ double pgheight, pgwidth;
+
+ if (pg->bg->type == BG_PDF) {
+ if (!bgpdf.document) return -1;
+ pdfpage = poppler_document_get_page(bgpdf.document, pg->bg->file_page_seq-1);
+ if (!pdfpage) return -1;
+ poppler_page_get_size(pdfpage, &pgwidth, &pgheight);
+ width = (int) (PDFTOPPM_PRINTING_DPI * pgwidth/72.0);
+ height = (int) (PDFTOPPM_PRINTING_DPI * pgheight/72.0);
+ pix = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, width, height);
+ poppler_page_render_to_pixbuf(
+ pdfpage, 0, 0, width, height, PDFTOPPM_PRINTING_DPI/72.0, 0, pix);
+ g_object_unref(pdfpage);
+ }
+ else pix = g_object_ref(pg->bg->pixbuf);
+
+ if (gdk_pixbuf_get_bits_per_sample(pix) != 8 ||
+ gdk_pixbuf_get_colorspace(pix) != GDK_COLORSPACE_RGB)
+ { g_object_unref(pix); return -1; }
+
+ width = gdk_pixbuf_get_width(pix);
+ height = gdk_pixbuf_get_height(pix);
+ stride = gdk_pixbuf_get_rowstride(pix);
+ chan = gdk_pixbuf_get_n_channels(pix);
+ if (chan!=3 && chan!=4) { g_object_unref(pix); return -1; }
+
+ g_string_append_printf(str, "q %.2f 0 0 %.2f 0 %.2f cm /ImBg Do Q ",
+ pg->width, -pg->height, pg->height);
+
+ p2 = buf = (char *)g_malloc(3*width*height);
+ for (y=0; y<height; y++) {
+ p1 = (char *)gdk_pixbuf_get_pixels(pix)+stride*y;
+ for (x=0; x<width; x++) {
+ *(p2++)=*(p1++); *(p2++)=*(p1++); *(p2++)=*(p1++);
+ if (chan==4) p1++;
+ }
+ }
+ zpix = do_deflate(buf, 3*width*height);
+ g_free(buf);
+ g_object_unref(pix);
+
+ make_xref(xref, xref->last+1, pdfbuf->len);
+ g_string_append_printf(pdfbuf,
+ "%d 0 obj\n<< /Length %d /Filter /FlateDecode /Type /Xobject "
+ "/Subtype /Image /Width %d /Height %d /ColorSpace /DeviceRGB "
+ "/BitsPerComponent 8 >> stream\n",
+ xref->last, zpix->len, width, height);
+ g_string_append_len(pdfbuf, zpix->str, zpix->len);
+ g_string_free(zpix, TRUE);
+ g_string_append(pdfbuf, "endstream\nendobj\n");
+
+ return xref->last;
+}
+
+// manipulate Pdf fonts
+
+struct PdfFont *new_pdffont(struct XrefTable *xref, GList **fonts,
+ char *filename, int font_id, FT_Face face, int glyph_page)
+{
+ GList *list;
+ struct PdfFont *font;
+ int i;
+ const char *s;
+
+ for (list = *fonts; list!=NULL; list = list->next) {
+ font = (struct PdfFont *)list->data;
+ if (!strcmp(font->filename, filename) && font->font_id == font_id
+ && font->glyph_page == glyph_page)
+ { font->used_in_this_page = TRUE; return font; }
+ }
+ font = g_malloc(sizeof(struct PdfFont));
+ *fonts = g_list_append(*fonts, font);
+ font->n_obj = xref->last+1;
+ make_xref(xref, xref->last+1, 0); // will give it a value later
+ font->filename = g_strdup(filename);
+ font->font_id = font_id;
+ font->glyph_page = glyph_page;
+ font->used_in_this_page = TRUE;
+ font->num_glyphs_used = 0;
+ for (i=0; i<256; i++) {
+ font->glyphmap[i] = -1;
+ font->advance[i] = 0;
+ font->glyphpsnames[i] = NULL;
+ }
+ font->glyphmap[0] = 0;
+ // fill in info from the FT_Face
+ font->is_truetype = FT_IS_SFNT(face);
+ font->nglyphs = face->num_glyphs;
+ font->ft2ps = 1000.0 / face->units_per_EM;
+ font->ascender = (int)(font->ft2ps*face->ascender);
+ font->descender = (int)(font->ft2ps*face->descender);
+ if (face->bbox.xMin < -100000 || face->bbox.xMin > 100000) font->xmin = 0;
+ else font->xmin = (int)(font->ft2ps*face->bbox.xMin);
+ if (face->bbox.xMax < -100000 || face->bbox.xMax > 100000) font->xmax = 0;
+ else font->xmax = (int)(font->ft2ps*face->bbox.xMax);
+ if (face->bbox.yMin < -100000 || face->bbox.yMin > 100000) font->ymin = 0;
+ else font->ymin = (int)(font->ft2ps*face->bbox.yMin);
+ if (face->bbox.yMax < -100000 || face->bbox.yMax > 100000) font->ymax = 0;
+ else font->ymax = (int)(font->ft2ps*face->bbox.yMax);
+ if (font->is_truetype) font->flags = 4; // symbolic
+ else {
+ font->flags = 4; // symbolic
+ if (FT_IS_FIXED_WIDTH(face)) font->flags |= 1;
+ if (face->style_flags & FT_STYLE_FLAG_ITALIC) font->flags |= 64;
+ }
+ s = FT_Get_Postscript_Name(face);
+ if (s==NULL) s = "Noname";
+ if (glyph_page) font->fontname = g_strdup_printf("%s_%03d", s, glyph_page);
+ else font->fontname = g_strdup(s);
+ return font;
+}
+
+#define pfb_get_length(x) (((x)[3]<<24) + ((x)[2]<<16) + ((x)[1]<<8) + (x)[0])
+#define T1_SEGMENT_1_END "currentfile eexec"
+#define T1_SEGMENT_3_END "cleartomark"
+
+void embed_pdffont(GString *pdfbuf, struct XrefTable *xref, struct PdfFont *font)
+{
+ // this code inspired by libgnomeprint
+ gboolean fallback, is_binary;
+ guchar encoding[256];
+ gushort glyphs[256];
+ int i, j, num, len1, len2;
+ gsize len;
+ TrueTypeFont *ttfnt;
+ char *tmpfile, *seg1, *seg2;
+ char *fontdata, *p;
+ char prefix[8];
+ int nobj_fontprog, nobj_descr, lastchar;
+
+ fallback = FALSE;
+ // embed the font file: TrueType case
+ if (font->is_truetype) {
+ glyphs[0] = encoding[0] = 0;
+ num = 1;
+ for (i=1; i<=255; i++)
+ if (font->glyphmap[i]>=0) {
+ font->glyphmap[i] = num;
+ glyphs[num] = 255*font->glyph_page+i-1;
+ encoding[num] = i;
+ num++;
+ }
+ font->num_glyphs_used = num-1;
+ if (OpenTTFont(font->filename, 0, &ttfnt) == SF_OK) {
+ tmpfile = mktemp(g_strdup(TMPDIR_TEMPLATE));
+ CreateTTFromTTGlyphs(ttfnt, tmpfile, glyphs, encoding, num,
+ 0, NULL, TTCF_AutoName | TTCF_IncludeOS2);
+ CloseTTFont(ttfnt);
+ if (g_file_get_contents(tmpfile, &fontdata, &len, NULL) && len>=8) {
+ make_xref(xref, xref->last+1, pdfbuf->len);
+ nobj_fontprog = xref->last;
+ g_string_append_printf(pdfbuf,
+ "%d 0 obj\n<< /Length %d /Length1 %d >> stream\n",
+ nobj_fontprog, (int)len, (int)len);
+ g_string_append_len(pdfbuf, fontdata, len);
+ g_string_append(pdfbuf, "endstream\nendobj\n");
+ g_free(fontdata);
+ }
+ else fallback = TRUE;
+ unlink(tmpfile);
+ g_free(tmpfile);
+ }
+ else fallback = TRUE;
+ } else {
+ // embed the font file: Type1 case
+ if (g_file_get_contents(font->filename, &fontdata, &len, NULL) && len>=8) {
+ if (fontdata[0]==(char)0x80 && fontdata[1]==(char)0x01) {
+ is_binary = TRUE;
+ len1 = pfb_get_length((unsigned char *)fontdata+2);
+ if (fontdata[len1+6]!=(char)0x80 || fontdata[len1+7]!=(char)0x02) fallback = TRUE;
+ else {
+ len2 = pfb_get_length((unsigned char *)fontdata+len1+8);
+ if (fontdata[len1+len2+12]!=(char)0x80 || fontdata[len1+len2+13]!=(char)0x01)
+ fallback = TRUE;
+ }
+ }
+ else if (!strncmp(fontdata, "%!PS", 4)) {
+ is_binary = FALSE;
+ p = strstr(fontdata, T1_SEGMENT_1_END) + strlen(T1_SEGMENT_1_END);
+ if (p==NULL) fallback = TRUE;
+ else {
+ if (*p=='\n' || *p=='\r') p++;
+ if (*p=='\n' || *p=='\r') p++;
+ len1 = p-fontdata;
+ p = g_strrstr_len(fontdata, len, T1_SEGMENT_3_END);
+ if (p==NULL) fallback = TRUE;
+ else {
+ // rewind 512 zeros
+ i = 512; p--;
+ while (i>0 && p!=fontdata && (*p=='0' || *p=='\r' || *p=='\n')) {
+ if (*p=='0') i--;
+ p--;
+ }
+ while (p!=fontdata && (*p=='\r' || *p=='\n')) p--;
+ p++;
+ if (i>0) fallback = TRUE;
+ else len2 = p-fontdata-len1;
+ }
+ }
+ }
+ else fallback = TRUE;
+ if (!fallback) {
+ if (is_binary) {
+ seg1 = fontdata+6;
+ seg2 = fontdata + len1 + 12;
+ } else {
+ seg1 = fontdata;
+ seg2 = g_malloc(len2/2);
+ j=0;
+ p = fontdata+len1;
+ while (p+1 < fontdata+len1+len2) {
+ if (*p==' '||*p=='\t'||*p=='\n'||*p=='\r') { p++; continue; }
+ if (p[0]>'9') { p[0]|=0x20; p[0]-=39; }
+ if (p[1]>'9') { p[1]|=0x20; p[1]-=39; }
+ seg2[j++] = ((p[0]-'0')<<4) + (p[1]-'0');
+ p+=2;
+ }
+ len2 = j;
+ }
+ make_xref(xref, xref->last+1, pdfbuf->len);
+ nobj_fontprog = xref->last;
+ g_string_append_printf(pdfbuf,
+ "%d 0 obj\n<< /Length %d /Length1 %d /Length2 %d /Length3 0 >> stream\n",
+ nobj_fontprog, len1+len2, len1, len2);
+ g_string_append_len(pdfbuf, seg1, len1);
+ g_string_append_len(pdfbuf, seg2, len2);
+ g_string_append(pdfbuf, "endstream\nendobj\n");
+ if (!is_binary) g_free(seg2);
+ }
+ g_free(fontdata);
+ }
+ else fallback = TRUE;
+ }
+
+ // next, the font descriptor
+ if (!fallback) {
+ make_xref(xref, xref->last+1, pdfbuf->len);
+ nobj_descr = xref->last;
+ g_string_append_printf(pdfbuf,
+ "%d 0 obj\n<< /Type /FontDescriptor /FontName /%s /Flags %d "
+ "/FontBBox [%d %d %d %d] /ItalicAngle 0 /Ascent %d "
+ "/Descent %d /CapHeight %d /StemV 100 /%s %d 0 R >> endobj\n",
+ nobj_descr, font->fontname, font->flags,
+ font->xmin, font->ymin, font->xmax, font->ymax,
+ font->ascender, -font->descender, font->ascender,
+ font->is_truetype ? "FontFile2":"FontFile",
+ nobj_fontprog);
+ }
+
+ // finally, the font itself
+ /* Note: in Type1 case, font->glyphmap maps charcodes to glyph no's
+ in TrueType case, encoding lists the used charcodes by index,
+ glyphs list the used glyph no's by index
+ font->glyphmap maps charcodes to indices */
+ xref->data[font->n_obj] = pdfbuf->len;
+ if (font->is_truetype) lastchar = encoding[font->num_glyphs_used];
+ else lastchar = font->num_glyphs_used;
+ if (fallback) {
+ font->is_truetype = FALSE;
+ g_free(font->fontname);
+ font->fontname = g_strdup("Helvetica");
+ }
+ prefix[0]=0;
+ if (font->is_truetype) {
+ num = font->glyph_page;
+ for (i=0; i<6; i++) { prefix[i] = 'A'+(num%26); num/=26; }
+ prefix[6]='+'; prefix[7]=0;
+ }
+ g_string_append_printf(pdfbuf,
+ "%d 0 obj\n<< /Type /Font /Subtype /%s /BaseFont /%s%s /Name /F%d ",
+ font->n_obj, font->is_truetype?"TrueType":"Type1",
+ prefix, font->fontname, font->n_obj);
+ if (!fallback) {
+ g_string_append_printf(pdfbuf,
+ "/FontDescriptor %d 0 R /FirstChar 0 /LastChar %d /Widths [",
+ nobj_descr, lastchar);
+ for (i=0; i<=lastchar; i++)
+ g_string_append_printf(pdfbuf, "%d ", font->advance[i]);
+ g_string_append(pdfbuf, "] ");
+ }
+ if (!font->is_truetype) { /* encoding */
+ g_string_append(pdfbuf, "/Encoding << /Type /Encoding "
+ "/BaseEncoding /MacRomanEncoding /Differences [1 ");
+ for (i=1; i<=lastchar; i++) {
+ g_string_append_printf(pdfbuf, "/%s ", font->glyphpsnames[i]);
+ g_free(font->glyphpsnames[i]);
+ }
+ g_string_append(pdfbuf, "] >> ");
+ }
+ g_string_append(pdfbuf, ">> endobj\n");
+}
+
+// draw a page's graphics
+
+void pdf_draw_page(struct Page *pg, GString *str, gboolean *use_hiliter,
+ struct XrefTable *xref, GList **pdffonts)
+{
+ GList *layerlist, *itemlist, *tmplist;
+ struct Layer *l;
+ struct Item *item;
+ guint old_rgba, old_text_rgba;
+ double old_thickness;
+ double *pt;
+ int i, j;
+ PangoFontDescription *font_desc;
+ PangoContext *context;
+ PangoLayout *layout;
+ PangoLayoutIter *iter;
+ PangoRectangle logical_rect;
+ PangoLayoutRun *run;
+ PangoFcFont *fcfont;
+ FcPattern *pattern;
+ int baseline, advance;
+ int glyph_no, glyph_page, current_page;
+ char *filename;
+ char tmpstr[200];
+ int font_id;
+ FT_Face ftface;
+ struct PdfFont *cur_font;
+ gboolean in_string;
+
+ old_rgba = old_text_rgba = 0x12345678; // not any values we use, so we'll reset them
+ old_thickness = 0.0;
+ for (tmplist = *pdffonts; tmplist!=NULL; tmplist = tmplist->next) {
+ cur_font = (struct PdfFont *)tmplist->data;
+ cur_font->used_in_this_page = FALSE;
+ }
+
+ for (layerlist = pg->layers; layerlist!=NULL; layerlist = layerlist->next) {
+ l = (struct Layer *)layerlist->data;
+ for (itemlist = l->items; itemlist!=NULL; itemlist = itemlist->next) {
+ item = (struct Item *)itemlist->data;
+ if (item->type == ITEM_STROKE) {
+ if ((item->brush.color_rgba & ~0xff) != old_rgba)
+ g_string_append_printf(str, "%.2f %.2f %.2f RG ",
+ RGBA_RGB(item->brush.color_rgba));
+ if (item->brush.thickness != old_thickness)
+ g_string_append_printf(str, "%.2f w ", item->brush.thickness);
+ if ((item->brush.color_rgba & 0xf0) != 0xf0) { // transparent
+ g_string_append(str, "q /XoHi gs ");
+ *use_hiliter = TRUE;
+ }
+ old_rgba = item->brush.color_rgba & ~0xff;
+ old_thickness = item->brush.thickness;
+ pt = item->path->coords;
+ if (!item->brush.variable_width) {
+ g_string_append_printf(str, "%.2f %.2f m ", pt[0], pt[1]);
+ for (i=1, pt+=2; i<item->path->num_points; i++, pt+=2)
+ g_string_append_printf(str, "%.2f %.2f l ", pt[0], pt[1]);
+ g_string_append_printf(str,"S\n");
+ old_thickness = item->brush.thickness;
+ } else {
+ for (i=0; i<item->path->num_points-1; i++, pt+=2)
+ g_string_append_printf(str, "%.2f w %.2f %.2f m %.2f %.2f l S\n",
+ item->widths[i], pt[0], pt[1], pt[2], pt[3]);
+ old_thickness = 0.0;
+ }
+ if ((item->brush.color_rgba & 0xf0) != 0xf0) // undo transparent
+ g_string_append(str, "Q ");
+ }
+ else if (item->type == ITEM_TEXT) {
+ if ((item->brush.color_rgba & ~0xff) != old_text_rgba)
+ g_string_append_printf(str, "%.2f %.2f %.2f rg ",
+ RGBA_RGB(item->brush.color_rgba));
+ old_text_rgba = item->brush.color_rgba & ~0xff;
+ context = gnome_print_pango_create_context(gnome_print_pango_get_default_font_map());
+ layout = pango_layout_new(context);
+ g_object_unref(context);
+ font_desc = pango_font_description_from_string(item->font_name);
+ pango_font_description_set_absolute_size(font_desc,
+ item->font_size*PANGO_SCALE);
+ pango_layout_set_font_description(layout, font_desc);
+ pango_font_description_free(font_desc);
+ pango_layout_set_text(layout, item->text, -1);
+ // this code inspired by the code in libgnomeprint
+ iter = pango_layout_get_iter(layout);
+ do {
+ run = pango_layout_iter_get_run(iter);
+ if (run==NULL) continue;
+ pango_layout_iter_get_run_extents (iter, NULL, &logical_rect);
+ baseline = pango_layout_iter_get_baseline (iter);
+ if (!PANGO_IS_FC_FONT(run->item->analysis.font)) continue;
+ fcfont = PANGO_FC_FONT(run->item->analysis.font);
+ pattern = fcfont->font_pattern;
+ if (FcPatternGetString(pattern, FC_FILE, 0, (unsigned char **)&filename) != FcResultMatch ||
+ FcPatternGetInteger(pattern, FC_INDEX, 0, &font_id) != FcResultMatch)
+ continue;
+ ftface = pango_fc_font_lock_face(fcfont);
+ current_page = -1;
+ cur_font = NULL;
+ g_string_append_printf(str, "BT %.2f 0 0 %.2f %.2f %.2f Tm ",
+ item->font_size, -item->font_size,
+ item->bbox.left + (gdouble) logical_rect.x/PANGO_SCALE,
+ item->bbox.top + (gdouble) baseline/PANGO_SCALE);
+ in_string = FALSE;
+ for (i=0; i<run->glyphs->num_glyphs; i++) {
+ glyph_no = run->glyphs->glyphs[i].glyph;
+ if (FT_IS_SFNT(ftface)) glyph_page = glyph_no/255;
+ else glyph_page = 0;
+ if (glyph_page != current_page) {
+ cur_font = new_pdffont(xref, pdffonts, filename, font_id,
+ ftface, glyph_page);
+ if (in_string) g_string_append(str, ") Tj ");
+ in_string = FALSE;
+ g_string_append_printf(str, "/F%d 1 Tf ", cur_font->n_obj);
+ }
+ current_page = glyph_page;
+ FT_Load_Glyph(ftface, glyph_no, FT_LOAD_NO_SCALE | FT_LOAD_NO_HINTING | FT_LOAD_NO_BITMAP | FT_LOAD_IGNORE_TRANSFORM);
+ advance = (int)(ftface->glyph->metrics.horiAdvance * cur_font->ft2ps + 0.5);
+ if (!in_string) g_string_append_c(str, '(');
+ in_string = TRUE;
+ if (cur_font->is_truetype) {
+ if (glyph_no) glyph_no = (glyph_no%255)+1;
+ cur_font->glyphmap[glyph_no] = glyph_no;
+ }
+ else {
+ for (j=1; j<=cur_font->num_glyphs_used; j++)
+ if (cur_font->glyphmap[j] == glyph_no) break;
+ if (j==256) j=0; // font is full, what do we do?
+ if (j>cur_font->num_glyphs_used) {
+ cur_font->glyphmap[j] = glyph_no;
+ cur_font->num_glyphs_used++;
+ if (FT_Get_Glyph_Name(ftface, glyph_no, tmpstr, 200) == FT_Err_Ok)
+ cur_font->glyphpsnames[j] = g_strdup(tmpstr);
+ else cur_font->glyphpsnames[j] = g_strdup(".notdef");
+ }
+ glyph_no = j;
+ }
+ cur_font->advance[glyph_no] = advance;
+ if (glyph_no=='\\' || glyph_no == '(' || glyph_no == ')' || glyph_no == 10 || glyph_no == 13)
+ g_string_append_c(str, '\\');
+ if (glyph_no==10) g_string_append_c(str,'n');
+ else if (glyph_no==13) g_string_append_c(str,'r');
+ else g_string_append_c(str, glyph_no);
+ }
+ if (in_string) g_string_append(str, ") Tj ");
+ g_string_append(str, "ET ");
+ pango_fc_font_unlock_face(fcfont);
+ } while (pango_layout_iter_next_run(iter));
+ pango_layout_iter_free(iter);
+ g_object_unref(layout);
+ }
+ }
+ }
+}
+
+// main printing function
+
+/* we use the following object numbers, starting with n_obj_catalog:
+ 0 the document catalog
+ 1 the page tree
+ 2 the GS for the hiliters
+ 3 ... the page objects
+*/
+
+gboolean print_to_pdf(char *filename)
+{
+ FILE *f;
+ GString *pdfbuf, *pgstrm, *zpgstrm, *tmpstr;
+ int n_obj_catalog, n_obj_pages_offs, n_page, n_obj_bgpix, n_obj_prefix;
+ int i, startxref;
+ struct XrefTable xref;
+ GList *pglist;
+ struct Page *pg;
+ gboolean annot, uses_pdf;
+ gboolean use_hiliter;
+ struct PdfInfo pdfinfo;
+ struct PdfObj *obj;
+ GList *pdffonts, *list;
+ struct PdfFont *font;
+ char *tmpbuf;
+
+ f = fopen(filename, "w");
+ if (f == NULL) return FALSE;
+ setlocale(LC_NUMERIC, "C");
+ annot = FALSE;
+ xref.data = NULL;
+ uses_pdf = FALSE;
+ pdffonts = NULL;
+ for (pglist = journal.pages; pglist!=NULL; pglist = pglist->next) {
+ pg = (struct Page *)pglist->data;
+ if (pg->bg->type == BG_PDF) uses_pdf = TRUE;
+ }
+
+ if (uses_pdf && bgpdf.status != STATUS_NOT_INIT &&
+ bgpdf.file_contents!=NULL && !strncmp(bgpdf.file_contents, "%PDF-1.", 7)) {
+ // parse the existing PDF file
+ pdfbuf = g_string_new_len(bgpdf.file_contents, bgpdf.file_length);
+ if (pdfbuf->str[7]<'4') pdfbuf->str[7] = '4'; // upgrade to 1.4
+ annot = pdf_parse_info(pdfbuf, &pdfinfo, &xref);
+ if (!annot) {
+ g_string_free(pdfbuf, TRUE);
+ if (xref.data != NULL) g_free(xref.data);
+ }
+ }
+
+ if (!annot) {
+ pdfbuf = g_string_new("%PDF-1.4\n%\370\357\365\362\n");
+ xref.n_alloc = xref.last = 0;
+ xref.data = NULL;
+ }
+
+ // catalog and page tree
+ n_obj_catalog = xref.last+1;
+ n_obj_pages_offs = xref.last+4;
+ make_xref(&xref, n_obj_catalog, pdfbuf->len);
+ g_string_append_printf(pdfbuf,
+ "%d 0 obj\n<< /Type /Catalog /Pages %d 0 R >> endobj\n",
+ n_obj_catalog, n_obj_catalog+1);
+ make_xref(&xref, n_obj_catalog+1, pdfbuf->len);
+ g_string_append_printf(pdfbuf,
+ "%d 0 obj\n<< /Type /Pages /Kids [", n_obj_catalog+1);
+ for (i=0;i<journal.npages;i++)
+ g_string_append_printf(pdfbuf, "%d 0 R ", n_obj_pages_offs+i);
+ g_string_append_printf(pdfbuf, "] /Count %d >> endobj\n", journal.npages);
+ make_xref(&xref, n_obj_catalog+2, pdfbuf->len);
+ g_string_append_printf(pdfbuf,
+ "%d 0 obj\n<< /Type /ExtGState /CA %.2f >> endobj\n",
+ n_obj_catalog+2, ui.hiliter_opacity);
+ xref.last = n_obj_pages_offs + journal.npages-1;
+
+ for (pglist = journal.pages, n_page = 0; pglist!=NULL;
+ pglist = pglist->next, n_page++) {
+ pg = (struct Page *)pglist->data;
+
+ // draw the background and page into pgstrm
+ pgstrm = g_string_new("");
+ g_string_printf(pgstrm, "q 1 0 0 -1 0 %.2f cm 1 J 1 j ", pg->height);
+ n_obj_bgpix = -1;
+ n_obj_prefix = -1;
+ if (pg->bg->type == BG_SOLID)
+ pdf_draw_solid_background(pg, pgstrm);
+ else if (pg->bg->type == BG_PDF && annot &&
+ pdfinfo.pages[pg->bg->file_page_seq-1].contents!=NULL) {
+ make_xref(&xref, xref.last+1, pdfbuf->len);
+ n_obj_prefix = xref.last;
+ tmpstr = make_pdfprefix(pdfinfo.pages+(pg->bg->file_page_seq-1),
+ pg->width, pg->height);
+ g_string_append_printf(pdfbuf,
+ "%d 0 obj\n<< /Length %d >> stream\n%s\nendstream\nendobj\n",
+ n_obj_prefix, tmpstr->len, tmpstr->str);
+ g_string_free(tmpstr, TRUE);
+ g_string_prepend(pgstrm, "Q Q Q ");
+ }
+ else if (pg->bg->type == BG_PIXMAP || pg->bg->type == BG_PDF)
+ n_obj_bgpix = pdf_draw_bitmap_background(pg, pgstrm, &xref, pdfbuf);
+ // draw the page contents
+ use_hiliter = FALSE;
+ pdf_draw_page(pg, pgstrm, &use_hiliter, &xref, &pdffonts);
+ g_string_append_printf(pgstrm, "Q\n");
+
+ // deflate pgstrm and write it
+ zpgstrm = do_deflate(pgstrm->str, pgstrm->len);
+ g_string_free(pgstrm, TRUE);
+
+ make_xref(&xref, xref.last+1, pdfbuf->len);
+ g_string_append_printf(pdfbuf,
+ "%d 0 obj\n<< /Length %d /Filter /FlateDecode>> stream\n",
+ xref.last, zpgstrm->len);
+ g_string_append_len(pdfbuf, zpgstrm->str, zpgstrm->len);
+ g_string_free(zpgstrm, TRUE);
+ g_string_append(pdfbuf, "endstream\nendobj\n");
+
+ // write the page object
+
+ make_xref(&xref, n_obj_pages_offs+n_page, pdfbuf->len);
+ g_string_append_printf(pdfbuf,
+ "%d 0 obj\n<< /Type /Page /Parent %d 0 R /MediaBox [0 0 %.2f %.2f] ",
+ n_obj_pages_offs+n_page, n_obj_catalog+1, pg->width, pg->height);
+ if (n_obj_prefix>0) {
+ obj = get_pdfobj(pdfbuf, &xref, pdfinfo.pages[pg->bg->file_page_seq-1].contents);
+ if (obj->type != PDFTYPE_ARRAY) {
+ free_pdfobj(obj);
+ obj = dup_pdfobj(pdfinfo.pages[pg->bg->file_page_seq-1].contents);
+ }
+ g_string_append_printf(pdfbuf, "/Contents [%d 0 R ", n_obj_prefix);
+ if (obj->type == PDFTYPE_REF)
+ g_string_append_printf(pdfbuf, "%d %d R ", obj->intval, obj->num);
+ if (obj->type == PDFTYPE_ARRAY) {
+ for (i=0; i<obj->num; i++) {
+ show_pdfobj(obj->elts[i], pdfbuf);
+ g_string_append_c(pdfbuf, ' ');
+ }
+ }
+ free_pdfobj(obj);
+ g_string_append_printf(pdfbuf, "%d 0 R] ", xref.last);
+ }
+ else g_string_append_printf(pdfbuf, "/Contents %d 0 R ", xref.last);
+ g_string_append(pdfbuf, "/Resources ");
+
+ if (n_obj_prefix>0)
+ obj = dup_pdfobj(pdfinfo.pages[pg->bg->file_page_seq-1].resources);
+ else obj = NULL;
+ if (obj!=NULL && obj->type!=PDFTYPE_DICT)
+ { free_pdfobj(obj); obj=NULL; }
+ if (obj==NULL) {
+ obj = g_malloc(sizeof(struct PdfObj));
+ obj->type = PDFTYPE_DICT;
+ obj->num = 0;
+ obj->elts = NULL;
+ obj->names = NULL;
+ }
+ add_dict_subentry(pdfbuf, &xref,
+ obj, "/ProcSet", PDFTYPE_ARRAY, NULL, mk_pdfname("/PDF"));
+ if (n_obj_bgpix>0)
+ add_dict_subentry(pdfbuf, &xref,
+ obj, "/ProcSet", PDFTYPE_ARRAY, NULL, mk_pdfname("/ImageC"));
+ if (use_hiliter)
+ add_dict_subentry(pdfbuf, &xref,
+ obj, "/ExtGState", PDFTYPE_DICT, "/XoHi", mk_pdfref(n_obj_catalog+2));
+ if (n_obj_bgpix>0)
+ add_dict_subentry(pdfbuf, &xref,
+ obj, "/XObject", PDFTYPE_DICT, "/ImBg", mk_pdfref(n_obj_bgpix));
+ for (list=pdffonts; list!=NULL; list = list->next) {
+ font = (struct PdfFont *)list->data;
+ if (font->used_in_this_page) {
+ add_dict_subentry(pdfbuf, &xref,
+ obj, "/ProcSet", PDFTYPE_ARRAY, NULL, mk_pdfname("/Text"));
+ tmpbuf = g_strdup_printf("/F%d", font->n_obj);
+ add_dict_subentry(pdfbuf, &xref,
+ obj, "/Font", PDFTYPE_DICT, tmpbuf, mk_pdfref(font->n_obj));
+ g_free(tmpbuf);
+ }
+ }
+ show_pdfobj(obj, pdfbuf);
+ free_pdfobj(obj);
+ g_string_append(pdfbuf, " >> endobj\n");
+ }
+
+ // after the pages, we insert fonts
+ for (list = pdffonts; list!=NULL; list = list->next) {
+ font = (struct PdfFont *)list->data;
+ embed_pdffont(pdfbuf, &xref, font);
+ g_free(font->filename);
+ g_free(font->fontname);
+ g_free(font);
+ }
+ g_list_free(pdffonts);
+
+ // PDF trailer
+ startxref = pdfbuf->len;
+ if (annot) g_string_append_printf(pdfbuf,
+ "xref\n%d %d\n", n_obj_catalog, xref.last-n_obj_catalog+1);
+ else g_string_append_printf(pdfbuf,
+ "xref\n0 %d\n0000000000 65535 f \n", xref.last+1);
+ for (i=n_obj_catalog; i<=xref.last; i++)
+ g_string_append_printf(pdfbuf, "%010d 00000 n \n", xref.data[i]);
+ g_string_append_printf(pdfbuf,
+ "trailer\n<< /Size %d /Root %d 0 R ", xref.last+1, n_obj_catalog);
+ if (annot) {
+ g_string_append_printf(pdfbuf, "/Prev %d ", pdfinfo.startxref);
+ // keeping encryption info somehow doesn't work.
+ // xournal can't annotate encrypted PDFs anyway...
+/*
+ obj = get_dict_entry(pdfinfo.trailerdict, "/Encrypt");
+ if (obj!=NULL) {
+ g_string_append_printf(pdfbuf, "/Encrypt ");
+ show_pdfobj(obj, pdfbuf);
+ }
+*/
+ }
+ g_string_append_printf(pdfbuf,
+ ">>\nstartxref\n%d\n%%%%EOF\n", startxref);
+
+ g_free(xref.data);
+ if (annot) {
+ free_pdfobj(pdfinfo.trailerdict);
+ if (pdfinfo.pages!=NULL)
+ for (i=0; i<pdfinfo.npages; i++) {
+ free_pdfobj(pdfinfo.pages[i].resources);
+ free_pdfobj(pdfinfo.pages[i].mediabox);
+ free_pdfobj(pdfinfo.pages[i].contents);
+ }
+ }
+
+ setlocale(LC_NUMERIC, "");
+ if (fwrite(pdfbuf->str, 1, pdfbuf->len, f) < pdfbuf->len) {
+ fclose(f);
+ g_string_free(pdfbuf, TRUE);
+ return FALSE;
+ }
+ fclose(f);
+ g_string_free(pdfbuf, TRUE);
+ return TRUE;
+}
+
+/*********** Printing via libgnomeprint **********/
+
// does the same job as update_canvas_bg(), but to a print context
void print_background(GnomePrintContext *gpc, struct Page *pg, gboolean *abort)
double x, y;
GdkPixbuf *pix;
BgPdfPage *pgpdf;
+ PopplerPage *pdfpage;
+ int width, height;
+ double pgwidth, pgheight;
if (pg->bg->type == BG_SOLID) {
gnome_print_setopacity(gpc, 1.0);
gnome_print_setrgbcolor(gpc, RGBA_RGB(pg->bg->color_rgba));
- gnome_print_rect_filled(gpc, 0, 0, pg->width, pg->height);
+ gnome_print_rect_filled(gpc, 0, 0, pg->width, -pg->height);
+ if (!ui.print_ruling) return;
if (pg->bg->ruling == RULING_NONE) return;
gnome_print_setrgbcolor(gpc, RGBA_RGB(RULING_COLOR));
gnome_print_setlinewidth(gpc, RULING_THICKNESS);
if (pg->bg->ruling == RULING_GRAPH) {
for (x=RULING_GRAPHSPACING; x<pg->width-1; x+=RULING_GRAPHSPACING)
- gnome_print_line_stroked(gpc, x, 0, x, pg->height);
+ gnome_print_line_stroked(gpc, x, 0, x, -pg->height);
for (y=RULING_GRAPHSPACING; y<pg->height-1; y+=RULING_GRAPHSPACING)
- gnome_print_line_stroked(gpc, 0, y, pg->width, y);
+ gnome_print_line_stroked(gpc, 0, -y, pg->width, -y);
return;
}
for (y=RULING_TOPMARGIN; y<pg->height-1; y+=RULING_SPACING)
- gnome_print_line_stroked(gpc, 0, y, pg->width, y);
+ gnome_print_line_stroked(gpc, 0, -y, pg->width, -y);
if (pg->bg->ruling == RULING_LINED) {
gnome_print_setrgbcolor(gpc, RGBA_RGB(RULING_MARGIN_COLOR));
- gnome_print_line_stroked(gpc, RULING_LEFTMARGIN, 0, RULING_LEFTMARGIN, pg->height);
+ gnome_print_line_stroked(gpc, RULING_LEFTMARGIN, 0, RULING_LEFTMARGIN, -pg->height);
}
return;
}
- else if (pg->bg->type == BG_PIXMAP || pg->bg->type == BG_PDF) {
+ else
+ if (pg->bg->type == BG_PIXMAP || pg->bg->type == BG_PDF) {
if (pg->bg->type == BG_PDF) {
- pgpdf = (struct BgPdfPage *)g_list_nth_data(bgpdf.pages, pg->bg->file_page_seq-1);
- if (pgpdf == NULL) return;
- if (pgpdf->dpi != PDFTOPPM_PRINTING_DPI) {
- add_bgpdf_request(pg->bg->file_page_seq, 0, TRUE);
- while (pgpdf->dpi != PDFTOPPM_PRINTING_DPI && bgpdf.status == STATUS_RUNNING) {
- gtk_main_iteration();
- if (*abort) return;
- }
- }
- pix = pgpdf->pixbuf;
+ if (!bgpdf.document) return;
+ pdfpage = poppler_document_get_page(bgpdf.document, pg->bg->file_page_seq-1);
+ if (!pdfpage) return;
+ poppler_page_get_size(pdfpage, &pgwidth, &pgheight);
+ width = (int) (PDFTOPPM_PRINTING_DPI * pgwidth/72.0);
+ height = (int) (PDFTOPPM_PRINTING_DPI * pgheight/72.0);
+ pix = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, width, height);
+ poppler_page_render_to_pixbuf(
+ pdfpage, 0, 0, width, height, PDFTOPPM_PRINTING_DPI/72.0, 0, pix);
+ g_object_unref(pdfpage);
}
- else pix = pg->bg->pixbuf;
- if (gdk_pixbuf_get_bits_per_sample(pix) != 8) return;
- if (gdk_pixbuf_get_colorspace(pix) != GDK_COLORSPACE_RGB) return;
+ else pix = g_object_ref(pg->bg->pixbuf);
+
+ if (gdk_pixbuf_get_bits_per_sample(pix) != 8 ||
+ gdk_pixbuf_get_colorspace(pix) != GDK_COLORSPACE_RGB)
+ { g_object_unref(pix); return; }
gnome_print_gsave(gpc);
- gnome_print_scale(gpc, pg->width, -pg->height);
+ gnome_print_scale(gpc, pg->width, pg->height);
gnome_print_translate(gpc, 0., -1.);
if (gdk_pixbuf_get_n_channels(pix) == 3)
gnome_print_rgbimage(gpc, gdk_pixbuf_get_pixels(pix),
else if (gdk_pixbuf_get_n_channels(pix) == 4)
gnome_print_rgbaimage(gpc, gdk_pixbuf_get_pixels(pix),
gdk_pixbuf_get_width(pix), gdk_pixbuf_get_height(pix), gdk_pixbuf_get_rowstride(pix));
+ g_object_unref(pix);
gnome_print_grestore(gpc);
return;
}
struct Item *item;
int i;
double *pt;
+ PangoFontDescription *font_desc;
+ PangoLayout *layout;
if (pg==NULL) return;
- g_snprintf(tmp, 10, "Page %d", pageno);
+ g_snprintf(tmp, 10, _("Page %d"), pageno);
gnome_print_beginpage(gpc, (guchar *)tmp);
gnome_print_gsave(gpc);
scale = MIN(pgwidth/pg->width, pgheight/pg->height)*0.95;
gnome_print_translate(gpc,
(pgwidth - scale*pg->width)/2, (pgheight + scale*pg->height)/2);
- gnome_print_scale(gpc, scale, -scale);
+ gnome_print_scale(gpc, scale, scale);
gnome_print_setlinejoin(gpc, 1); // round
gnome_print_setlinecap(gpc, 1); // round
for (itemlist = l->items; itemlist!=NULL; itemlist = itemlist->next) {
if (*abort) break;
item = (struct Item *)itemlist->data;
- if (item->type == ITEM_STROKE) {
+ if (item->type == ITEM_STROKE || item->type == ITEM_TEXT) {
if ((item->brush.color_rgba & ~0xff) != (old_rgba & ~0xff))
gnome_print_setrgbcolor(gpc, RGBA_RGB(item->brush.color_rgba));
if ((item->brush.color_rgba & 0xff) != (old_rgba & 0xff))
gnome_print_setopacity(gpc, RGBA_ALPHA(item->brush.color_rgba));
+ old_rgba = item->brush.color_rgba;
+ }
+ if (item->type == ITEM_STROKE) {
if (item->brush.thickness != old_thickness)
gnome_print_setlinewidth(gpc, item->brush.thickness);
- old_rgba = item->brush.color_rgba;
- old_thickness = item->brush.thickness;
gnome_print_newpath(gpc);
pt = item->path->coords;
- gnome_print_moveto(gpc, pt[0], pt[1]);
- for (i=1, pt+=2; i<item->path->num_points; i++, pt+=2)
- gnome_print_lineto(gpc, pt[0], pt[1]);
- gnome_print_stroke(gpc);
+ if (!item->brush.variable_width) {
+ gnome_print_moveto(gpc, pt[0], -pt[1]);
+ for (i=1, pt+=2; i<item->path->num_points; i++, pt+=2)
+ gnome_print_lineto(gpc, pt[0], -pt[1]);
+ gnome_print_stroke(gpc);
+ old_thickness = item->brush.thickness;
+ } else {
+ for (i=0; i<item->path->num_points-1; i++, pt+=2) {
+ gnome_print_moveto(gpc, pt[0], -pt[1]);
+ gnome_print_setlinewidth(gpc, item->widths[i]);
+ gnome_print_lineto(gpc, pt[2], -pt[3]);
+ gnome_print_stroke(gpc);
+ }
+ old_thickness = 0.0;
+ }
+ }
+ if (item->type == ITEM_TEXT) {
+ layout = gnome_print_pango_create_layout(gpc);
+ font_desc = pango_font_description_from_string(item->font_name);
+ pango_font_description_set_absolute_size(font_desc,
+ item->font_size*PANGO_SCALE);
+ pango_layout_set_font_description(layout, font_desc);
+ pango_font_description_free(font_desc);
+ pango_layout_set_text(layout, item->text, -1);
+ gnome_print_moveto(gpc, item->bbox.left, -item->bbox.top);
+ gnome_print_pango_layout(gpc, layout);
+ g_object_unref(layout);
}
}
}
abort = FALSE;
wait_dialog = gtk_message_dialog_new(GTK_WINDOW(winMain), GTK_DIALOG_MODAL,
- GTK_MESSAGE_INFO, GTK_BUTTONS_CANCEL, "Preparing print job");
+ GTK_MESSAGE_INFO, GTK_BUTTONS_CANCEL, _("Preparing print job"));
gtk_widget_show(wait_dialog);
g_signal_connect(wait_dialog, "response", G_CALLBACK (cb_print_abort), &abort);
#if GTK_CHECK_VERSION(2,6,0)
if (!gtk_check_version(2, 6, 0))
gtk_message_dialog_format_secondary_text(
- GTK_MESSAGE_DIALOG(wait_dialog), "Page %d", i+1);
+ GTK_MESSAGE_DIALOG(wait_dialog), _("Page %d"), i+1);
#endif
while (gtk_events_pending()) gtk_main_iteration();
print_page(gpc, (struct Page *)g_list_nth_data(journal.pages, i), i+1,
#if GTK_CHECK_VERSION(2,6,0)
if (!gtk_check_version(2, 6, 0))
gtk_message_dialog_format_secondary_text(
- GTK_MESSAGE_DIALOG(wait_dialog), "Finalizing...");
+ GTK_MESSAGE_DIALOG(wait_dialog), _("Finalizing..."));
#endif
while (gtk_events_pending()) gtk_main_iteration();
projects / xournal.git / blobdiff