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 */
32 #include "../gfxdevice.h"
33 #include "../gfxtools.h"
35 typedef struct _internal {
40 int pdf_setparameter(gfxdevice_t*dev, const char*key, const char*value)
42 internal_t*i = (internal_t*)dev->internal;
46 void pdf_startpage(gfxdevice_t*dev, int width, int height)
48 internal_t*i = (internal_t*)dev->internal;
51 i->tempfile = strdup(mktempname(0));
52 PDF_open_file(i->p, i->tempfile);
53 PDF_set_parameter(i->p, "usercoordinates", "true");
54 PDF_set_parameter(i->p, "topdown", "true");
57 PDF_begin_page(i->p, width, height);
58 PDF_set_parameter(i->p, "fillrule", "evenodd");
61 static int mkline(gfxline_t*line, PDF*p)
66 if(line->type == gfx_moveTo) {
67 PDF_moveto(p, line->x, line->y);
68 } else if(line->type == gfx_lineTo) {
69 PDF_lineto(p, line->x, line->y);
72 /* when converting a quadratic bezier to a cubic bezier, the
73 two new control points are both 2/3 the way from the
74 endpoints to the old control point */
75 double c1x = (x + line->sx*2)/3;
76 double c1y = (y + line->sy*2)/3;
77 double c2x = (line->x + line->sx*2)/3;
78 double c2y = (line->y + line->sy*2)/3;
79 PDF_curveto(p, c1x, c1y, c2x, c2y, line->x, line->y);
89 void pdf_startclip(gfxdevice_t*dev, gfxline_t*line)
91 internal_t*i = (internal_t*)dev->internal;
93 PDF_set_parameter(i->p, "fillrule", "evenodd");
94 if(mkline(line, i->p))
97 ; // TODO: strictly speaking, an empty clip clears everything
100 void pdf_endclip(gfxdevice_t*dev)
102 internal_t*i = (internal_t*)dev->internal;
105 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)
107 internal_t*i = (internal_t*)dev->internal;
108 PDF_setlinewidth(i->p, width);
109 PDF_setlinecap(i->p, cap_style==gfx_capButt?0:(cap_style==gfx_capRound?1:2));
110 PDF_setlinejoin(i->p, joint_style==gfx_joinMiter?0:(joint_style==gfx_joinRound?1:2));
111 PDF_setrgbcolor_stroke(i->p, color->r/255.0, color->g/255.0, color->b/255.0);
112 if(joint_style==gfx_joinMiter)
113 PDF_setmiterlimit(i->p, miterLimit);
114 if(mkline(line, i->p))
118 void pdf_fill(gfxdevice_t*dev, gfxline_t*line, gfxcolor_t*color)
120 internal_t*i = (internal_t*)dev->internal;
121 PDF_setrgbcolor_fill(i->p, color->r/255.0, color->g/255.0, color->b/255.0);
122 PDF_set_parameter(i->p, "fillrule", "evenodd");
124 if(mkline(line, i->p)) {
129 void pdf_fillbitmap(gfxdevice_t*dev, gfxline_t*line, gfximage_t*img, gfxmatrix_t*matrix, gfxcxform_t*cxform)
131 internal_t*i = (internal_t*)dev->internal;
133 double l1 = sqrt(matrix->m00*matrix->m00+matrix->m01*matrix->m01)*img->width;
134 double l2 = sqrt(matrix->m10*matrix->m10+matrix->m11*matrix->m11)*img->height;
135 double r = atan2(matrix->m01, matrix->m00);
137 /* fit_image needs the lower left corner of the image */
138 double x = matrix->tx + matrix->m10*img->height;
139 double y = matrix->ty + matrix->m11*img->height;
141 char*tempfile = mktempname(0);
143 sprintf(options, "boxsize {%f %f} fitmethod meet rotate %f", l1, l2, r*180/M_PI);
144 gfximage_save_jpeg(img, tempfile, 99);
145 int imgid = PDF_load_image(i->p, "jpeg", tempfile, 0, "");
146 PDF_fit_image(i->p, imgid, x, y, options);
149 void pdf_fillgradient(gfxdevice_t*dev, gfxline_t*line, gfxgradient_t*gradient, gfxgradienttype_t type, gfxmatrix_t*matrix)
151 internal_t*i = (internal_t*)dev->internal;
154 void pdf_addfont(gfxdevice_t*dev, gfxfont_t*font)
156 internal_t*i = (internal_t*)dev->internal;
159 void pdf_drawchar(gfxdevice_t*dev, gfxfont_t*font, int glyphnr, gfxcolor_t*color, gfxmatrix_t*matrix)
161 internal_t*i = (internal_t*)dev->internal;
164 /* align characters to whole pixels */
165 matrix->tx = (int)matrix->tx;
166 matrix->ty = (int)matrix->ty;
168 gfxglyph_t*glyph = &font->glyphs[glyphnr];
169 gfxline_t*line2 = gfxline_clone(glyph->line);
170 gfxline_transform(line2, matrix);
171 PDF_setrgbcolor_fill(i->p, color->r/255.0, color->g/255.0, color->b/255.0);
172 PDF_set_parameter(i->p, "fillrule", "evenodd");
174 if(mkline(line2, i->p)) {
181 void pdf_drawlink(gfxdevice_t*dev, gfxline_t*line, const char*action)
183 internal_t*i = (internal_t*)dev->internal;
186 void pdf_endpage(gfxdevice_t*dev)
188 internal_t*i = (internal_t*)dev->internal;
192 typedef struct pdfresult_internal {
194 } pdfresult_internal_t;
196 void pdfresult_destroy(gfxresult_t*gfx)
198 pdfresult_internal_t*i = (pdfresult_internal_t*)gfx->internal;
200 free(gfx->internal);gfx->internal = 0;
204 int pdfresult_save(gfxresult_t*gfx, const char*filename)
206 pdfresult_internal_t*i = (pdfresult_internal_t*)gfx->internal;
207 FILE*fi = fopen(i->tempfile, "rb");
208 FILE*fo = fopen(filename, "wb");
215 while((size = fread(buffer, 1, 4096, fi))) {
216 fwrite(buffer, 1, size, fo);
223 void* pdfresult_get(gfxresult_t*gfx, const char*name)
228 gfxresult_t* pdf_finish(gfxdevice_t*dev)
230 internal_t*i = (internal_t*)dev->internal;
235 gfxresult_t*result = (gfxresult_t*)malloc(sizeof(gfxresult_t));
236 memset(result, 0, sizeof(gfxresult_t));
237 result->save = pdfresult_save;
238 result->get = pdfresult_get;
239 result->destroy = pdfresult_destroy;
240 result->internal = 0;
241 result->internal = malloc(sizeof(pdfresult_internal_t));
242 pdfresult_internal_t*ri = (pdfresult_internal_t*)result->internal;
243 ri->tempfile = i->tempfile;i->tempfile=0;
244 free(dev->internal);dev->internal = 0;i=0;
248 void gfxdevice_pdf_init(gfxdevice_t*dev)
250 internal_t*i = (internal_t*)rfx_calloc(sizeof(internal_t));
251 memset(dev, 0, sizeof(gfxdevice_t));
257 dev->setparameter = pdf_setparameter;
258 dev->startpage = pdf_startpage;
259 dev->startclip = pdf_startclip;
260 dev->endclip = pdf_endclip;
261 dev->stroke = pdf_stroke;
262 dev->fill = pdf_fill;
263 dev->fillbitmap = pdf_fillbitmap;
264 dev->fillgradient = pdf_fillgradient;
265 dev->addfont = pdf_addfont;
266 dev->drawchar = pdf_drawchar;
267 dev->drawlink = pdf_drawlink;
268 dev->endpage = pdf_endpage;
269 dev->finish = pdf_finish;