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Commit | Line | Data |
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ef416fc2 | 1 | /* |
7a6a01dd | 2 | * "$Id$" |
ef416fc2 | 3 | * |
4 | * HP-GL/2 configuration routines for the Common UNIX Printing System (CUPS). | |
5 | * | |
6 | * Copyright 1993-2005 by Easy Software Products. | |
7 | * | |
8 | * These coded instructions, statements, and computer programs are the | |
9 | * property of Easy Software Products and are protected by Federal | |
10 | * copyright law. Distribution and use rights are outlined in the file | |
11 | * "LICENSE.txt" which should have been included with this file. If this | |
12 | * file is missing or damaged please contact Easy Software Products | |
13 | * at: | |
14 | * | |
15 | * Attn: CUPS Licensing Information | |
16 | * Easy Software Products | |
17 | * 44141 Airport View Drive, Suite 204 | |
18 | * Hollywood, Maryland 20636 USA | |
19 | * | |
20 | * Voice: (301) 373-9600 | |
21 | * EMail: cups-info@cups.org | |
22 | * WWW: http://www.cups.org | |
23 | * | |
24 | * This file is subject to the Apple OS-Developed Software exception. | |
25 | * | |
26 | * Contents: | |
27 | * | |
28 | * update_transform() - Update the page transformation matrix as needed. | |
29 | * BP_begin_plot() - Start a plot... | |
30 | * DF_default_values() - Set all state info to the default values. | |
31 | * IN_initialize() - Initialize the plotter. | |
32 | * IP_input_absolute() - Set P1 and P2 values for the plot. | |
33 | * IR_input_relative() - Update P1 and P2. | |
34 | * IW_input_window() - Setup an input window. | |
35 | * PG_advance_page() - Eject the current page. | |
36 | * PS_plot_size() - Set the plot size. | |
37 | * RO_rotate() - Rotate the plot. | |
38 | * RP_replot() - Replot the current page. | |
39 | * SC_scale() - Set user-defined scaling. | |
40 | */ | |
41 | ||
42 | /* | |
43 | * Include necessary headers... | |
44 | */ | |
45 | ||
46 | #include "hpgltops.h" | |
47 | ||
48 | #define max(a,b) ((a) < (b) ? (b) : (a)) | |
49 | ||
50 | ||
51 | /* | |
52 | * 'update_transform()' - Update the page transformation matrix as needed. | |
53 | */ | |
54 | ||
55 | void | |
56 | update_transform(void) | |
57 | { | |
58 | float page_width, /* Actual page width */ | |
59 | page_height; /* Actual page height */ | |
60 | float scaling; /* Scaling factor */ | |
61 | float left, right, /* Scaling window */ | |
62 | bottom, top; | |
63 | float width, height; /* Scaling width and height */ | |
64 | float iw1[2], iw2[2]; /* Clipping window */ | |
65 | ||
66 | ||
67 | /* | |
68 | * Get the page and input window sizes... | |
69 | */ | |
70 | ||
71 | if (FitPlot) | |
72 | { | |
73 | page_width = PageRight - PageLeft; | |
74 | page_height = PageTop - PageBottom; | |
75 | } | |
76 | else | |
77 | { | |
78 | page_width = (P2[0] - P1[0]) * 72.0f / 1016.0f; | |
79 | page_height = (P2[1] - P1[1]) * 72.0f / 1016.0f; | |
80 | } | |
81 | ||
82 | fprintf(stderr, "DEBUG: page_width = %.0f, page_height = %.0f\n", | |
83 | page_width, page_height); | |
84 | ||
85 | if (page_width == 0 || page_height == 0) | |
86 | return; | |
87 | ||
88 | /* | |
89 | * Set the scaling window... | |
90 | */ | |
91 | ||
92 | switch (ScalingType) | |
93 | { | |
94 | default : /* No user scaling */ | |
95 | left = P1[0]; | |
96 | bottom = P1[1]; | |
97 | right = P2[0]; | |
98 | top = P2[1]; | |
99 | break; | |
100 | ||
101 | case 0 : /* Anisotropic (non-uniform) scaling */ | |
102 | left = Scaling1[0]; | |
103 | bottom = Scaling1[1]; | |
104 | right = Scaling2[0]; | |
105 | top = Scaling2[1]; | |
106 | break; | |
107 | ||
108 | case 1 : /* Isotropic (uniform) scaling */ | |
109 | left = Scaling1[0]; | |
110 | bottom = Scaling1[1]; | |
111 | right = Scaling2[0]; | |
112 | top = Scaling2[1]; | |
113 | ||
114 | width = right - left; | |
115 | height = top - bottom; | |
116 | ||
117 | if (width == 0 || height == 0) | |
118 | return; | |
119 | ||
120 | if ((width * page_height) != (height * page_width)) | |
121 | { | |
122 | scaling = height * page_width / page_height; | |
123 | if (width < scaling) | |
124 | { | |
125 | width = scaling; | |
126 | left = 0.5f * (left + right - width); | |
127 | right = left + width; | |
128 | } | |
129 | else | |
130 | { | |
131 | height = width * page_height / page_width; | |
132 | bottom = 0.5f * (bottom + top - height); | |
133 | top = bottom + height; | |
134 | } | |
135 | } | |
136 | break; | |
137 | ||
138 | case 2 : | |
139 | left = Scaling1[0]; | |
140 | bottom = Scaling1[1]; | |
141 | right = left + page_width * Scaling2[0] * 1016.0f / 72.0f; | |
142 | top = bottom + page_height * Scaling2[1] * 1016.0f / 72.0f; | |
143 | break; | |
144 | } | |
145 | ||
146 | width = right - left; | |
147 | height = top - bottom; | |
148 | ||
149 | if (width == 0 || height == 0) | |
150 | return; | |
151 | ||
152 | /* | |
153 | * Scale the plot as needed... | |
154 | */ | |
155 | ||
156 | if (Rotation == 0 || Rotation == 180) | |
157 | scaling = page_width / width; | |
158 | else | |
159 | scaling = page_width / height; | |
160 | ||
161 | if (FitPlot) | |
162 | scaling *= max(page_width, page_height) / max(PlotSize[1], PlotSize[0]); | |
163 | ||
164 | /* | |
165 | * Offset for the current P1 location... | |
166 | */ | |
167 | ||
168 | if (FitPlot) | |
169 | { | |
170 | left = 0; | |
171 | bottom = 0; | |
172 | } | |
173 | else | |
174 | { | |
175 | left = P1[0] * 72.0f / 1016.0f; | |
176 | bottom = P1[1] * 72.0f / 1016.0f; | |
177 | } | |
178 | ||
179 | /* | |
180 | * Generate a new transformation matrix... | |
181 | */ | |
182 | ||
183 | switch (Rotation) | |
184 | { | |
185 | default : | |
186 | case 0 : | |
187 | Transform[0][0] = scaling; | |
188 | Transform[0][1] = 0.0; | |
189 | Transform[0][2] = -left; | |
190 | Transform[1][0] = 0.0; | |
191 | Transform[1][1] = scaling; | |
192 | Transform[1][2] = -bottom; | |
193 | break; | |
194 | ||
195 | case 90 : | |
196 | Transform[0][0] = 0.0; | |
197 | Transform[0][1] = -scaling; | |
198 | Transform[0][2] = PageLength - left; | |
199 | Transform[1][0] = scaling; | |
200 | Transform[1][1] = 0.0; | |
201 | Transform[1][2] = -bottom; | |
202 | break; | |
203 | ||
204 | case 180 : | |
205 | Transform[0][0] = -scaling; | |
206 | Transform[0][1] = 0.0; | |
207 | Transform[0][2] = PageLength - left; | |
208 | Transform[1][0] = 0.0; | |
209 | Transform[1][1] = -scaling; | |
210 | Transform[1][2] = PageWidth - bottom; | |
211 | break; | |
212 | ||
213 | case 270 : | |
214 | Transform[0][0] = 0.0; | |
215 | Transform[0][1] = scaling; | |
216 | Transform[0][2] = -left; | |
217 | Transform[1][0] = -scaling; | |
218 | Transform[1][1] = 0.0; | |
219 | Transform[1][2] = PageWidth - bottom; | |
220 | break; | |
221 | } | |
222 | ||
223 | fprintf(stderr, "DEBUG: Transform = [ %.3f %.3f\n" | |
224 | "DEBUG: %.3f %.3f\n" | |
225 | "DEBUG: %.3f %.3f ]\n", | |
226 | Transform[0][0], Transform[1][0], Transform[0][1], | |
227 | Transform[1][1], Transform[0][2], Transform[1][2]); | |
228 | ||
229 | if (FitPlot) | |
230 | { | |
231 | if (Rotation == 0 || Rotation == 180) | |
232 | PenScaling = page_width / PlotSize[1]; | |
233 | else | |
234 | PenScaling = page_width / PlotSize[0]; | |
235 | } | |
236 | else | |
237 | PenScaling = 1.0; | |
238 | ||
239 | if (PenScaling < 0.0) | |
240 | PenScaling = -PenScaling; | |
241 | ||
242 | if (PageDirty) | |
243 | { | |
244 | printf("%.2f setlinewidth\n", Pens[PenNumber].width * PenScaling); | |
245 | ||
246 | if (IW1[0] != IW2[0] && IW1[1] != IW2[1]) | |
247 | { | |
248 | iw1[0] = IW1[0] * 72.0f / 1016.0f; | |
249 | iw1[1] = IW1[1] * 72.0f / 1016.0f; | |
250 | iw2[0] = IW2[0] * 72.0f / 1016.0f; | |
251 | iw2[1] = IW2[1] * 72.0f / 1016.0f; | |
252 | ||
253 | printf("initclip MP %.3f %.3f MO %.3f %.3f LI %.3f %.3f LI %.3f %.3f LI CP clip\n", | |
254 | iw1[0], iw1[1], iw1[0], iw2[1], iw2[0], iw2[1], iw2[0], iw1[1]); | |
255 | } | |
256 | } | |
257 | } | |
258 | ||
259 | ||
260 | /* | |
261 | * 'BP_begin_plot()' - Start a plot... | |
262 | */ | |
263 | ||
264 | void | |
265 | BP_begin_plot(int num_params, /* I - Number of parameters */ | |
266 | param_t *params) /* I - Parameters */ | |
267 | { | |
268 | (void)num_params; | |
269 | (void)params; | |
270 | } | |
271 | ||
272 | ||
273 | /* | |
274 | * 'DF_default_values()' - Set all state info to the default values. | |
275 | */ | |
276 | ||
277 | void | |
278 | DF_default_values(int num_params, /* I - Number of parameters */ | |
279 | param_t *params) /* I - Parameters */ | |
280 | { | |
281 | (void)num_params; | |
282 | (void)params; | |
283 | ||
284 | NP_number_pens(0, NULL); | |
285 | AC_anchor_corner(0, NULL); | |
286 | AD_define_alternate(0, NULL); | |
287 | SD_define_standard(0, NULL); | |
288 | CF_character_fill(0, NULL); | |
289 | DI_absolute_direction(0, NULL); | |
290 | DT_define_label_term(0, NULL); | |
291 | DV_define_variable_path(0, NULL); | |
292 | ES_extra_space(0, NULL); | |
293 | FT_fill_type(0, NULL); | |
294 | IW_input_window(0, NULL); | |
295 | LA_line_attributes(0, NULL); | |
296 | LO_label_origin(0, NULL); | |
297 | LT_line_type(0, NULL); | |
298 | PA_plot_absolute(0, NULL); | |
299 | PolygonMode = 0; | |
300 | RF_raster_fill(0, NULL); | |
301 | SC_scale(0, NULL); | |
302 | SM_symbol_mode(0, NULL); | |
303 | SS_select_standard(0, NULL); | |
304 | TD_transparent_data(0, NULL); | |
305 | UL_user_line_type(0, NULL); | |
306 | } | |
307 | ||
308 | ||
309 | /* | |
310 | * 'IN_initialize()' - Initialize the plotter. | |
311 | */ | |
312 | ||
313 | void | |
314 | IN_initialize(int num_params, /* I - Number of parameters */ | |
315 | param_t *params) /* I - Parameters */ | |
316 | { | |
317 | (void)num_params; | |
318 | (void)params; | |
319 | ||
320 | DF_default_values(0, NULL); | |
321 | PU_pen_up(0, NULL); | |
322 | RO_rotate(0, NULL); | |
323 | PS_plot_size(0, NULL); | |
324 | WU_width_units(0, NULL); | |
325 | PW_pen_width(0, NULL); | |
326 | ||
327 | PenWidth = 1; | |
328 | ||
329 | PenPosition[0] = PenPosition[1] = 0.0; | |
330 | } | |
331 | ||
332 | ||
333 | /* | |
334 | * 'IP_input_absolute()' - Set P1 and P2 values for the plot. | |
335 | */ | |
336 | ||
337 | void | |
338 | IP_input_absolute(int num_params, /* I - Number of parameters */ | |
339 | param_t *params) /* I - Parameters */ | |
340 | { | |
341 | if (num_params == 0) | |
342 | { | |
343 | P1[0] = PageLeft / 72.0f * 1016.0f; | |
344 | P1[1] = PageBottom / 72.0f * 1016.0f; | |
345 | P2[0] = PageRight / 72.0f * 1016.0f; | |
346 | P2[1] = PageTop / 72.0f * 1016.0f; | |
347 | } | |
348 | else if (num_params == 2) | |
349 | { | |
350 | P2[0] -= P1[0]; | |
351 | P2[1] -= P1[1]; | |
352 | P1[0] = params[0].value.number; | |
353 | P1[1] = params[1].value.number; | |
354 | P2[0] += P1[0]; | |
355 | P2[1] += P1[1]; | |
356 | } | |
357 | else if (num_params == 4) | |
358 | { | |
359 | P1[0] = params[0].value.number; | |
360 | P1[1] = params[1].value.number; | |
361 | P2[0] = params[2].value.number; | |
362 | P2[1] = params[3].value.number; | |
363 | } | |
364 | ||
365 | IW1[0] = 0.0; | |
366 | IW1[1] = 0.0; | |
367 | IW2[0] = 0.0; | |
368 | IW2[1] = 0.0; | |
369 | ||
370 | if (ScalingType < 0) | |
371 | { | |
372 | Scaling1[0] = P1[0]; | |
373 | Scaling1[0] = P1[1]; | |
374 | Scaling2[0] = P2[0]; | |
375 | Scaling2[1] = P2[1]; | |
376 | } | |
377 | ||
378 | update_transform(); | |
379 | } | |
380 | ||
381 | ||
382 | /* | |
383 | * 'IR_input_relative()' - Update P1 and P2. | |
384 | */ | |
385 | ||
386 | void | |
387 | IR_input_relative(int num_params, /* I - Number of parameters */ | |
388 | param_t *params) /* I - Parameters */ | |
389 | { | |
390 | if (num_params == 0) | |
391 | { | |
392 | P1[0] = PageLeft / 72.0f * 1016.0f; | |
393 | P1[1] = PageBottom / 72.0f * 1016.0f; | |
394 | P2[0] = PageRight / 72.0f * 1016.0f; | |
395 | P2[1] = PageTop / 72.0f * 1016.0f; | |
396 | } | |
397 | else if (num_params == 2) | |
398 | { | |
399 | P2[0] -= P1[0]; | |
400 | P2[1] -= P1[1]; | |
401 | P1[0] = params[0].value.number * PlotSize[0] / 72.0f * 1016.0f / 100.0f; | |
402 | P1[1] = params[1].value.number * PlotSize[1] / 72.0f * 1016.0f / 100.0f; | |
403 | P2[0] += P1[0]; | |
404 | P2[1] += P1[1]; | |
405 | } | |
406 | else if (num_params == 4) | |
407 | { | |
408 | P1[0] = params[0].value.number * PlotSize[0] / 72.0f * 1016.0f / 100.0f; | |
409 | P1[1] = params[1].value.number * PlotSize[1] / 72.0f * 1016.0f / 100.0f; | |
410 | P2[0] = params[2].value.number * PlotSize[0] / 72.0f * 1016.0f / 100.0f; | |
411 | P2[1] = params[3].value.number * PlotSize[1] / 72.0f * 1016.0f / 100.0f; | |
412 | } | |
413 | ||
414 | IW1[0] = 0.0; | |
415 | IW1[1] = 0.0; | |
416 | IW2[0] = 0.0; | |
417 | IW2[1] = 0.0; | |
418 | ||
419 | if (ScalingType < 0) | |
420 | { | |
421 | Scaling1[0] = P1[0]; | |
422 | Scaling1[0] = P1[1]; | |
423 | Scaling2[0] = P2[0]; | |
424 | Scaling2[1] = P2[1]; | |
425 | } | |
426 | ||
427 | update_transform(); | |
428 | } | |
429 | ||
430 | ||
431 | /* | |
432 | * 'IW_input_window()' - Setup an input window. | |
433 | */ | |
434 | ||
435 | void | |
436 | IW_input_window(int num_params, /* I - Number of parameters */ | |
437 | param_t *params) /* I - Parameters */ | |
438 | { | |
439 | if (num_params == 0) | |
440 | { | |
441 | IW1[0] = PageLeft / 72.0f * 1016.0f; | |
442 | IW1[1] = PageBottom / 72.0f * 1016.0f; | |
443 | IW2[0] = PageRight / 72.0f * 1016.0f; | |
444 | IW2[1] = PageTop / 72.0f * 1016.0f; | |
445 | } | |
446 | else if (num_params == 4) | |
447 | { | |
448 | ||
449 | if (ScalingType < 0) | |
450 | { | |
451 | IW1[0] = params[0].value.number; | |
452 | IW1[1] = params[1].value.number; | |
453 | IW2[0] = params[2].value.number; | |
454 | IW2[1] = params[3].value.number; | |
455 | } | |
456 | else | |
457 | { | |
458 | IW1[0] = (Transform[0][0] * params[0].value.number + | |
459 | Transform[0][1] * params[1].value.number + | |
460 | Transform[0][2]) / 72.0f * 1016.0f; | |
461 | IW1[1] = (Transform[1][0] * params[0].value.number + | |
462 | Transform[1][1] * params[1].value.number + | |
463 | Transform[1][2]) / 72.0f * 1016.0f; | |
464 | IW2[0] = (Transform[0][0] * params[2].value.number + | |
465 | Transform[0][1] * params[3].value.number + | |
466 | Transform[0][2]) / 72.0f * 1016.0f; | |
467 | IW2[1] = (Transform[1][0] * params[2].value.number + | |
468 | Transform[1][1] * params[3].value.number + | |
469 | Transform[1][2]) / 72.0f * 1016.0f; | |
470 | } | |
471 | ||
472 | fprintf(stderr, "DEBUG: IW%.0f,%.0f,%.0f,%.0f = [ %.0f %.0f %.0f %.0f ]\n", | |
473 | params[0].value.number, params[1].value.number, | |
474 | params[2].value.number, params[3].value.number, | |
475 | IW1[0], IW1[1], IW2[0], IW2[1]); | |
476 | } | |
477 | ||
478 | ||
479 | update_transform(); | |
480 | } | |
481 | ||
482 | ||
483 | /* | |
484 | * 'PG_advance_page()' - Eject the current page. | |
485 | */ | |
486 | ||
487 | void | |
488 | PG_advance_page(int num_params, /* I - Number of parameters */ | |
489 | param_t *params) /* I - Parameters */ | |
490 | { | |
491 | (void)num_params; | |
492 | (void)params; | |
493 | ||
494 | if (PageDirty) | |
495 | { | |
496 | puts("grestore"); | |
497 | puts("showpage"); | |
498 | ||
499 | PageDirty = 0; | |
500 | } | |
501 | } | |
502 | ||
503 | ||
504 | /* | |
505 | * 'PS_plot_size()' - Set the plot size. | |
506 | */ | |
507 | ||
508 | void | |
509 | PS_plot_size(int num_params, /* I - Number of parameters */ | |
510 | param_t *params) /* I - Parameters */ | |
511 | { | |
512 | switch (num_params) | |
513 | { | |
514 | case 0 : /* PS ; */ | |
515 | if (Rotation == 0 || Rotation == 180) | |
516 | { | |
517 | PlotSize[0] = PageWidth; | |
518 | PlotSize[1] = PageLength; | |
519 | } | |
520 | else | |
521 | { | |
522 | PlotSize[0] = PageLength; | |
523 | PlotSize[1] = PageWidth; | |
524 | } | |
525 | ||
526 | PlotSizeSet = 0; | |
527 | break; | |
528 | case 1 : /* PS length ; */ | |
529 | if (Rotation == 0 || Rotation == 180) | |
530 | { | |
531 | PlotSize[1] = 72.0f * params[0].value.number / 1016.0f; | |
532 | PlotSize[0] = 0.75f * PlotSize[1]; | |
533 | } | |
534 | else | |
535 | { | |
536 | PlotSize[0] = 72.0f * params[0].value.number / 1016.0f; | |
537 | PlotSize[1] = 0.75f * PlotSize[0]; | |
538 | } | |
539 | ||
540 | PlotSizeSet = 1; | |
541 | break; | |
542 | case 2 : /* PS length, width ; */ | |
543 | /* | |
544 | * Unfortunately, it appears that NO application correctly | |
545 | * sends a two-argument PS command as documented in the | |
546 | * HP-GL/2 Reference Manual from HP. Instead, applications | |
547 | * send the width before the length, which causes all sorts | |
548 | * of problems when scaling. | |
549 | * | |
550 | * Rather than fight it, we now look for them as width,length | |
551 | * instead of length,width. | |
552 | * | |
553 | * Don't like it? Send mail to the folks that make Ideas, Pro/E, | |
554 | * AutoCAD, etc. | |
555 | */ | |
556 | ||
557 | if (Rotation == 0 || Rotation == 180) | |
558 | { | |
559 | PlotSize[0] = 72.0f * params[0].value.number / 1016.0f; | |
560 | PlotSize[1] = 72.0f * params[1].value.number / 1016.0f; | |
561 | } | |
562 | else | |
563 | { | |
564 | PlotSize[0] = 72.0f * params[1].value.number / 1016.0f; | |
565 | PlotSize[1] = 72.0f * params[0].value.number / 1016.0f; | |
566 | } | |
567 | ||
568 | PlotSizeSet = 1; | |
569 | break; | |
570 | } | |
571 | ||
572 | /* | |
573 | * This is required for buggy files that don't set the input window. | |
574 | */ | |
575 | ||
576 | IP_input_absolute(0, NULL); | |
577 | } | |
578 | ||
579 | ||
580 | /* | |
581 | * 'RO_rotate()' - Rotate the plot. | |
582 | */ | |
583 | ||
584 | void | |
585 | RO_rotate(int num_params, /* I - Number of parameters */ | |
586 | param_t *params) /* I - Parameters */ | |
587 | { | |
588 | if (num_params == 0) | |
589 | Rotation = 0; | |
590 | else | |
591 | Rotation = (int)params[0].value.number; | |
592 | ||
593 | update_transform(); | |
594 | } | |
595 | ||
596 | ||
597 | /* | |
598 | * 'RP_replot()' - Replot the current page. | |
599 | */ | |
600 | ||
601 | void | |
602 | RP_replot(int num_params, /* I - Number of parameters */ | |
603 | param_t *params) /* I - Parameters */ | |
604 | { | |
605 | (void)num_params; | |
606 | (void)params; | |
607 | } | |
608 | ||
609 | ||
610 | /* | |
611 | * 'SC_scale()' - Set user-defined scaling. | |
612 | */ | |
613 | ||
614 | void | |
615 | SC_scale(int num_params, /* I - Number of parameters */ | |
616 | param_t *params) /* I - Parameters */ | |
617 | { | |
618 | if (num_params == 0) | |
619 | { | |
620 | ScalingType = -1; | |
621 | Scaling1[0] = P1[0]; | |
622 | Scaling1[0] = P1[1]; | |
623 | Scaling2[0] = P2[0]; | |
624 | Scaling2[1] = P2[1]; | |
625 | } | |
626 | else if (num_params > 3) | |
627 | { | |
628 | Scaling1[0] = params[0].value.number; | |
629 | Scaling2[0] = params[1].value.number; | |
630 | Scaling1[1] = params[2].value.number; | |
631 | Scaling2[1] = params[3].value.number; | |
632 | ||
633 | if (num_params > 4) | |
634 | ScalingType = (int)params[4].value.number; | |
635 | else | |
636 | ScalingType = 1; | |
637 | } | |
638 | ||
639 | update_transform(); | |
640 | } | |
641 | ||
642 | ||
643 | /* | |
7a6a01dd | 644 | * End of "$Id$". |
ef416fc2 | 645 | */ |