3 Part of the swftools package.
5 Copyright (c) 2007 Matthias Kramm <kramm@quiss.org>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
34 #include "../gfxdevice.h"
35 #include "../gfxtools.h"
37 typedef struct _internal {
40 gfxfontlist_t*fontlist;
43 int pdf_setparameter(gfxdevice_t*dev, const char*key, const char*value)
45 internal_t*i = (internal_t*)dev->internal;
49 void pdf_startpage(gfxdevice_t*dev, int width, int height)
51 internal_t*i = (internal_t*)dev->internal;
54 i->tempfile = strdup(mktempname(0));
55 PDF_open_file(i->p, i->tempfile);
56 PDF_set_parameter(i->p, "usercoordinates", "true");
57 PDF_set_parameter(i->p, "topdown", "true");
60 PDF_begin_page(i->p, width, height);
61 PDF_set_parameter(i->p, "fillrule", "evenodd");
64 static char xy_equals(void*c1, void*c2)
66 return !memcmp(c1, c2, sizeof(double)*2);
68 static unsigned int xy_hash(void*c)
70 return string_hash3(c, sizeof(double)*2);
72 static void* xy_clone(void*c)
74 void*n = malloc(sizeof(double)*2);
75 memcpy(n, c, sizeof(double)*2);
78 static void xy_destroy(void*c)
82 static type_t xy_type = {
83 hash: (hash_func)xy_hash,
84 equals: (equals_func)xy_equals,
85 dup: (dup_func)xy_clone, // all signatures are static
86 free: (free_func)xy_destroy,
89 static int mkline(gfxline_t*line, PDF*p, char fill)
93 dict_t*start = dict_new2(&xy_type);
96 if(l->type == gfx_moveTo) {
97 double xy[2] = {l->x, l->y};
98 dict_put(start, xy, l);
103 assert(!line || line->type == gfx_moveTo);
106 double pos[2] = {0,0};
109 while(dict_count(start)) {
110 gfxline_t*l = dict_lookup(start, pos);
112 DICT_ITERATE_DATA(start, gfxline_t*, l2) {
117 double xy[2] = {l->x,l->y};
118 char d = dict_del2(start,xy,l);
121 char d = dict_del2(start,pos,l);
125 if(l->type == gfx_moveTo && (x!=l->x || y!=l->y || first)) {
127 PDF_moveto(p, l->x, l->y);
128 } else if(l->type == gfx_lineTo) {
129 PDF_lineto(p, l->x, l->y);
132 /* when converting a quadratic bezier to a cubic bezier, the
133 two new control points are both 2/3 the way from the
134 endpoints to the old control point */
135 double c1x = (x + l->sx*2)/3;
136 double c1y = (y + l->sy*2)/3;
137 double c2x = (l->x + l->sx*2)/3;
138 double c2y = (l->y + l->sy*2)/3;
139 PDF_curveto(p, c1x, c1y, c2x, c2y, l->x, l->y);
147 if(l && l->type == gfx_moveTo)
155 void pdf_startclip(gfxdevice_t*dev, gfxline_t*line)
157 internal_t*i = (internal_t*)dev->internal;
159 if(mkline(line, i->p, 1))
162 ; // TODO: strictly speaking, an empty clip clears everything
165 void pdf_endclip(gfxdevice_t*dev)
167 internal_t*i = (internal_t*)dev->internal;
170 void pdf_stroke(gfxdevice_t*dev, gfxline_t*line, gfxcoord_t width, gfxcolor_t*color, gfx_capType cap_style, gfx_joinType joint_style, gfxcoord_t miterLimit)
172 internal_t*i = (internal_t*)dev->internal;
175 PDF_setlinewidth(i->p, width);
176 PDF_setlinecap(i->p, cap_style==gfx_capButt?0:(cap_style==gfx_capRound?1:2));
177 PDF_setlinejoin(i->p, joint_style==gfx_joinMiter?0:(joint_style==gfx_joinRound?1:2));
178 PDF_setrgbcolor_stroke(i->p, color->r/255.0, color->g/255.0, color->b/255.0);
179 if(joint_style==gfx_joinMiter)
180 PDF_setmiterlimit(i->p, miterLimit);
181 if(mkline(line, i->p, 0))
185 void pdf_fill(gfxdevice_t*dev, gfxline_t*line, gfxcolor_t*color)
187 internal_t*i = (internal_t*)dev->internal;
188 PDF_setrgbcolor_fill(i->p, color->r/255.0, color->g/255.0, color->b/255.0);
190 if(mkline(line, i->p, 1)) {
195 void pdf_fillbitmap(gfxdevice_t*dev, gfxline_t*line, gfximage_t*img, gfxmatrix_t*matrix, gfxcxform_t*cxform)
197 internal_t*i = (internal_t*)dev->internal;
199 double l1 = sqrt(matrix->m00*matrix->m00+matrix->m01*matrix->m01)*img->width;
200 double l2 = sqrt(matrix->m10*matrix->m10+matrix->m11*matrix->m11)*img->height;
201 double r = atan2(matrix->m01, matrix->m00);
203 /* fit_image needs the lower left corner of the image */
204 double x = matrix->tx + matrix->m10*img->height;
205 double y = matrix->ty + matrix->m11*img->height;
207 char*tempfile = mktempname(0);
209 sprintf(options, "boxsize {%f %f} fitmethod meet rotate %f", l1, l2, r*180/M_PI);
210 gfximage_save_jpeg(img, tempfile, 99);
211 int imgid = PDF_load_image(i->p, "jpeg", tempfile, 0, "");
212 PDF_fit_image(i->p, imgid, x, y, options);
215 void pdf_fillgradient(gfxdevice_t*dev, gfxline_t*line, gfxgradient_t*gradient, gfxgradienttype_t type, gfxmatrix_t*matrix)
217 internal_t*i = (internal_t*)dev->internal;
220 static char type3 = 1;
222 void pdf_addfont(gfxdevice_t*dev, gfxfont_t*font)
224 internal_t*i = (internal_t*)dev->internal;
228 if(!gfxfontlist_hasfont(i->fontlist, font)) {
230 static int fontnr = 1;
232 sprintf(fontname, "font%d", fontnr++);
233 int l = strlen(fontname);
237 fontname2[t*2+0] = fontname[t];
238 fontname2[t*2+1] = 0;
241 PDF_begin_font(i->p, fontname2, l*2, 1.0, 0.0, 0.0, 1.0, 0.0, 0.0, "");
242 int num = font->num_glyphs<256-32?font->num_glyphs:256-32;
244 gfxglyph_t*g = &font->glyphs[t];
245 gfxbbox_t bbox = gfxline_getbbox(g->line);
247 sprintf(name, "chr%d", t+32);
248 PDF_encoding_set_char(i->p, fontname, t+32, name, 0);
249 PDF_begin_glyph(i->p, name, g->advance, bbox.xmin, bbox.ymin, bbox.xmax, bbox.ymax);
250 if(mkline(g->line, i->p, 1))
255 fontid = PDF_load_font(i->p, fontname2, l*2, fontname, "");
257 i->fontlist = gfxfontlist_addfont2(i->fontlist, font, (void*)(ptroff_t)fontid);
262 void pdf_drawchar(gfxdevice_t*dev, gfxfont_t*font, int glyphnr, gfxcolor_t*color, gfxmatrix_t*matrix)
264 internal_t*i = (internal_t*)dev->internal;
269 gfxglyph_t*glyph = &font->glyphs[glyphnr];
270 PDF_setrgbcolor_fill(i->p, color->r/255.0, color->g/255.0, color->b/255.0);
272 if(!type3) as_shape=1;
273 if(glyphnr>256-32) as_shape=1;
274 if(fabs(matrix->m00 + matrix->m11) > 0.01) as_shape=1;
275 if(fabs(fabs(matrix->m01) + fabs(matrix->m10)) > 0.01) as_shape=1;
276 if(fabs(matrix->m00) < 0.01) as_shape=1;
279 gfxline_t*line2 = gfxline_clone(glyph->line);
280 gfxline_transform(line2, matrix);
281 if(mkline(line2, i->p, 1)) {
286 assert(gfxfontlist_hasfont(i->fontlist, font));
287 int fontid = (int)(ptroff_t)gfxfontlist_getuserdata(i->fontlist, font->id);
288 PDF_setfont(i->p, fontid, matrix->m00);
290 sprintf(name, "%c\0", glyphnr+32);
291 PDF_show_xy2(i->p, name, strlen(name), matrix->tx, matrix->ty);
296 void pdf_drawlink(gfxdevice_t*dev, gfxline_t*line, const char*action)
298 internal_t*i = (internal_t*)dev->internal;
301 void pdf_endpage(gfxdevice_t*dev)
303 internal_t*i = (internal_t*)dev->internal;
307 typedef struct pdfresult_internal {
309 } pdfresult_internal_t;
311 void pdfresult_destroy(gfxresult_t*gfx)
313 pdfresult_internal_t*i = (pdfresult_internal_t*)gfx->internal;
315 free(gfx->internal);gfx->internal = 0;
319 int pdfresult_save(gfxresult_t*gfx, const char*filename)
321 pdfresult_internal_t*i = (pdfresult_internal_t*)gfx->internal;
322 FILE*fi = fopen(i->tempfile, "rb");
323 FILE*fo = fopen(filename, "wb");
330 while((size = fread(buffer, 1, 4096, fi))) {
331 fwrite(buffer, 1, size, fo);
338 void* pdfresult_get(gfxresult_t*gfx, const char*name)
343 gfxresult_t* pdf_finish(gfxdevice_t*dev)
345 internal_t*i = (internal_t*)dev->internal;
350 gfxresult_t*result = (gfxresult_t*)malloc(sizeof(gfxresult_t));
351 memset(result, 0, sizeof(gfxresult_t));
352 result->save = pdfresult_save;
353 result->get = pdfresult_get;
354 result->destroy = pdfresult_destroy;
355 result->internal = 0;
356 result->internal = malloc(sizeof(pdfresult_internal_t));
357 pdfresult_internal_t*ri = (pdfresult_internal_t*)result->internal;
358 ri->tempfile = i->tempfile;i->tempfile=0;
359 free(dev->internal);dev->internal = 0;i=0;
363 void gfxdevice_pdf_init(gfxdevice_t*dev)
365 internal_t*i = (internal_t*)rfx_calloc(sizeof(internal_t));
366 memset(dev, 0, sizeof(gfxdevice_t));
372 dev->setparameter = pdf_setparameter;
373 dev->startpage = pdf_startpage;
374 dev->startclip = pdf_startclip;
375 dev->endclip = pdf_endclip;
376 dev->stroke = pdf_stroke;
377 dev->fill = pdf_fill;
378 dev->fillbitmap = pdf_fillbitmap;
379 dev->fillgradient = pdf_fillgradient;
380 dev->addfont = pdf_addfont;
381 dev->drawchar = pdf_drawchar;
382 dev->drawlink = pdf_drawlink;
383 dev->endpage = pdf_endpage;
384 dev->finish = pdf_finish;