1 #define __SP_DESKTOP_STYLE_C__
3 /** \file
4 * Desktop style management
5 *
6 * Authors:
7 * bulia byak
8 * verbalshadow
9 *
10 * Copyright (C) 2004, 2006 authors
11 *
12 * Released under GNU GPL, read the file 'COPYING' for more information
13 */
15 #include <string>
16 #include <cstring>
18 #include "desktop.h"
19 #include "color-rgba.h"
20 #include "svg/css-ostringstream.h"
21 #include "svg/svg.h"
22 #include "svg/svg-color.h"
23 #include "selection.h"
24 #include "inkscape.h"
25 #include "style.h"
26 #include "preferences.h"
27 #include "sp-use.h"
28 #include "filters/blend.h"
29 #include "sp-filter.h"
30 #include "sp-filter-reference.h"
31 #include "sp-gaussian-blur.h"
32 #include "sp-flowtext.h"
33 #include "sp-flowregion.h"
34 #include "sp-flowdiv.h"
35 #include "sp-linear-gradient.h"
36 #include "sp-pattern.h"
37 #include "sp-radial-gradient.h"
38 #include "sp-textpath.h"
39 #include "sp-tref.h"
40 #include "sp-tspan.h"
41 #include "xml/repr.h"
42 #include "libnrtype/font-style-to-pos.h"
43 #include "sp-path.h"
45 #include "desktop-style.h"
46 #include "svg/svg-icc-color.h"
47 #include "box3d-side.h"
49 /**
50 * Set color on selection on desktop.
51 */
52 void
53 sp_desktop_set_color(SPDesktop *desktop, ColorRGBA const &color, bool is_relative, bool fill)
54 {
55 /// \todo relative color setting
56 if (is_relative) {
57 g_warning("FIXME: relative color setting not yet implemented");
58 return;
59 }
61 guint32 rgba = SP_RGBA32_F_COMPOSE(color[0], color[1], color[2], color[3]);
62 gchar b[64];
63 sp_svg_write_color(b, sizeof(b), rgba);
64 SPCSSAttr *css = sp_repr_css_attr_new();
65 if (fill) {
66 sp_repr_css_set_property(css, "fill", b);
67 Inkscape::CSSOStringStream osalpha;
68 osalpha << color[3];
69 sp_repr_css_set_property(css, "fill-opacity", osalpha.str().c_str());
70 } else {
71 sp_repr_css_set_property(css, "stroke", b);
72 Inkscape::CSSOStringStream osalpha;
73 osalpha << color[3];
74 sp_repr_css_set_property(css, "stroke-opacity", osalpha.str().c_str());
75 }
77 sp_desktop_set_style(desktop, css);
79 sp_repr_css_attr_unref(css);
80 }
82 /**
83 * Apply style on object and children, recursively.
84 */
85 void
86 sp_desktop_apply_css_recursive(SPObject *o, SPCSSAttr *css, bool skip_lines)
87 {
88 // non-items should not have style
89 if (!SP_IS_ITEM(o))
90 return;
92 // 1. tspans with role=line are not regular objects in that they are not supposed to have style of their own,
93 // but must always inherit from the parent text. Same for textPath.
94 // However, if the line tspan or textPath contains some style (old file?), we reluctantly set our style to it too.
96 // 2. Generally we allow setting style on clones, but when it's inside flowRegion, do not touch
97 // it, be it clone or not; it's just styleless shape (because that's how Inkscape does
98 // flowtext).
100 if (!(skip_lines
101 && ((SP_IS_TSPAN(o) && SP_TSPAN(o)->role == SP_TSPAN_ROLE_LINE)
102 || SP_IS_FLOWDIV(o)
103 || SP_IS_FLOWPARA(o)
104 || SP_IS_TEXTPATH(o))
105 && !SP_OBJECT_REPR(o)->attribute("style"))
106 &&
107 !(SP_IS_FLOWREGION(o) ||
108 SP_IS_FLOWREGIONEXCLUDE(o) ||
109 (SP_IS_USE(o) &&
110 SP_OBJECT_PARENT(o) &&
111 (SP_IS_FLOWREGION(SP_OBJECT_PARENT(o)) ||
112 SP_IS_FLOWREGIONEXCLUDE(SP_OBJECT_PARENT(o))
113 )
114 )
115 )
116 ) {
118 SPCSSAttr *css_set = sp_repr_css_attr_new();
119 sp_repr_css_merge(css_set, css);
121 // Scale the style by the inverse of the accumulated parent transform in the paste context.
122 {
123 Geom::Matrix const local(sp_item_i2doc_affine(SP_ITEM(o)));
124 double const ex(local.descrim());
125 if ( ( ex != 0. )
126 && ( ex != 1. ) ) {
127 sp_css_attr_scale(css_set, 1/ex);
128 }
129 }
131 sp_repr_css_change(SP_OBJECT_REPR(o), css_set, "style");
133 sp_repr_css_attr_unref(css_set);
134 }
136 // setting style on child of clone spills into the clone original (via shared repr), don't do it!
137 if (SP_IS_USE(o))
138 return;
140 for (SPObject *child = sp_object_first_child(SP_OBJECT(o)) ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
141 if (sp_repr_css_property(css, "opacity", NULL) != NULL) {
142 // Unset properties which are accumulating and thus should not be set recursively.
143 // For example, setting opacity 0.5 on a group recursively would result in the visible opacity of 0.25 for an item in the group.
144 SPCSSAttr *css_recurse = sp_repr_css_attr_new();
145 sp_repr_css_merge(css_recurse, css);
146 sp_repr_css_set_property(css_recurse, "opacity", NULL);
147 sp_desktop_apply_css_recursive(child, css_recurse, skip_lines);
148 sp_repr_css_attr_unref(css_recurse);
149 } else {
150 sp_desktop_apply_css_recursive(child, css, skip_lines);
151 }
152 }
153 }
155 /**
156 * Apply style on selection on desktop.
157 */
158 void
159 sp_desktop_set_style(SPDesktop *desktop, SPCSSAttr *css, bool change, bool write_current)
160 {
161 if (write_current) {
162 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
163 // 1. Set internal value
164 sp_repr_css_merge(desktop->current, css);
166 // 1a. Write to prefs; make a copy and unset any URIs first
167 SPCSSAttr *css_write = sp_repr_css_attr_new();
168 sp_repr_css_merge(css_write, css);
169 sp_css_attr_unset_uris(css_write);
170 prefs->mergeStyle("/desktop/style", css_write);
172 for (const GSList *i = desktop->selection->itemList(); i != NULL; i = i->next) {
173 /* last used styles for 3D box faces are stored separately */
174 if (SP_IS_BOX3D_SIDE (i->data)) {
175 const char * descr = box3d_side_axes_string(SP_BOX3D_SIDE(i->data));
176 if (descr != NULL) {
177 prefs->mergeStyle(Glib::ustring("/desktop/") + descr + "/style", css_write);
178 }
179 }
180 }
181 sp_repr_css_attr_unref(css_write);
182 }
184 if (!change)
185 return;
187 // 2. Emit signal
188 bool intercepted = desktop->_set_style_signal.emit(css);
190 /** \todo
191 * FIXME: in set_style, compensate pattern and gradient fills, stroke width,
192 * rect corners, font size for the object's own transform so that pasting
193 * fills does not depend on preserve/optimize.
194 */
196 // 3. If nobody has intercepted the signal, apply the style to the selection
197 if (!intercepted) {
199 // Remove text attributes if not text...
200 // Do this once in case a zillion objects are selected.
201 SPCSSAttr *css_no_text = sp_repr_css_attr_new();
202 sp_repr_css_merge(css_no_text, css);
203 css_no_text = sp_css_attr_unset_text(css_no_text);
205 for (GSList const *i = desktop->selection->itemList(); i != NULL; i = i->next) {
207 // If not text, don't apply text attributes (can a group have text attributes?)
208 if ( SP_IS_TEXT(i->data) || SP_IS_FLOWTEXT(i->data)
209 || SP_IS_TSPAN(i->data) || SP_IS_TREF(i->data) || SP_IS_TEXTPATH(i->data)
210 || SP_IS_FLOWDIV(i->data) || SP_IS_FLOWPARA(i->data) || SP_IS_FLOWTSPAN(i->data)) {
212 sp_desktop_apply_css_recursive(SP_OBJECT(i->data), css, true);
214 } else {
216 sp_desktop_apply_css_recursive(SP_OBJECT(i->data), css_no_text, true);
218 }
219 }
220 sp_repr_css_attr_unref(css_no_text);
221 }
222 }
224 /**
225 * Return the desktop's current style.
226 */
227 SPCSSAttr *
228 sp_desktop_get_style(SPDesktop *desktop, bool with_text)
229 {
230 SPCSSAttr *css = sp_repr_css_attr_new();
231 sp_repr_css_merge(css, desktop->current);
232 if (!css->attributeList()) {
233 sp_repr_css_attr_unref(css);
234 return NULL;
235 } else {
236 if (!with_text) {
237 css = sp_css_attr_unset_text(css);
238 }
239 return css;
240 }
241 }
243 /**
244 * Return the desktop's current color.
245 */
246 guint32
247 sp_desktop_get_color(SPDesktop *desktop, bool is_fill)
248 {
249 guint32 r = 0; // if there's no color, return black
250 gchar const *property = sp_repr_css_property(desktop->current,
251 is_fill ? "fill" : "stroke",
252 "#000");
254 if (desktop->current && property) { // if there is style and the property in it,
255 if (strncmp(property, "url", 3)) { // and if it's not url,
256 // read it
257 r = sp_svg_read_color(property, r);
258 }
259 }
261 return r;
262 }
264 double
265 sp_desktop_get_master_opacity_tool(SPDesktop *desktop, Glib::ustring const &tool, bool *has_opacity)
266 {
267 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
268 SPCSSAttr *css = NULL;
269 gfloat value = 1.0; // default if nothing else found
270 if (has_opacity)
271 *has_opacity = false;
272 if (prefs->getBool(tool + "/usecurrent")) {
273 css = sp_desktop_get_style(desktop, true);
274 } else {
275 css = prefs->getStyle(tool + "/style");
276 }
278 if (css) {
279 gchar const *property = css ? sp_repr_css_property(css, "opacity", "1.000") : 0;
281 if (desktop->current && property) { // if there is style and the property in it,
282 if ( !sp_svg_number_read_f(property, &value) ) {
283 value = 1.0; // things failed. set back to the default
284 } else {
285 if (has_opacity)
286 *has_opacity = false;
287 }
288 }
290 sp_repr_css_attr_unref(css);
291 }
293 return value;
294 }
295 double
296 sp_desktop_get_opacity_tool(SPDesktop *desktop, Glib::ustring const &tool, bool is_fill)
297 {
298 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
299 SPCSSAttr *css = NULL;
300 gfloat value = 1.0; // default if nothing else found
301 if (prefs->getBool(tool + "/usecurrent")) {
302 css = sp_desktop_get_style(desktop, true);
303 } else {
304 css = prefs->getStyle(tool + "/style");
305 }
307 if (css) {
308 gchar const *property = css ? sp_repr_css_property(css, is_fill ? "fill-opacity": "stroke-opacity", "1.000") : 0;
310 if (desktop->current && property) { // if there is style and the property in it,
311 if ( !sp_svg_number_read_f(property, &value) ) {
312 value = 1.0; // things failed. set back to the default
313 }
314 }
316 sp_repr_css_attr_unref(css);
317 }
319 return value;
320 }
322 guint32
323 sp_desktop_get_color_tool(SPDesktop *desktop, Glib::ustring const &tool, bool is_fill, bool *has_color)
324 {
325 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
326 SPCSSAttr *css = NULL;
327 guint32 r = 0; // if there's no color, return black
328 if (has_color)
329 *has_color = false;
330 if (prefs->getBool(tool + "/usecurrent")) {
331 css = sp_desktop_get_style(desktop, true);
332 } else {
333 css = prefs->getStyle(tool + "/style");
334 }
336 if (css) {
337 gchar const *property = sp_repr_css_property(css, is_fill ? "fill" : "stroke", "#000");
339 if (desktop->current && property) { // if there is style and the property in it,
340 if (strncmp(property, "url", 3) && strncmp(property, "none", 4)) { // and if it's not url or none,
341 // read it
342 r = sp_svg_read_color(property, r);
343 if (has_color)
344 *has_color = true;
345 }
346 }
348 sp_repr_css_attr_unref(css);
349 }
351 return r | 0xff;
352 }
354 /**
355 * Apply the desktop's current style or the tool style to repr.
356 */
357 void
358 sp_desktop_apply_style_tool(SPDesktop *desktop, Inkscape::XML::Node *repr, Glib::ustring const &tool_path, bool with_text)
359 {
360 SPCSSAttr *css_current = sp_desktop_get_style(desktop, with_text);
361 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
363 if (prefs->getBool(tool_path + "/usecurrent") && css_current) {
364 sp_repr_css_set(repr, css_current, "style");
365 } else {
366 SPCSSAttr *css = prefs->getInheritedStyle(tool_path + "/style");
367 sp_repr_css_set(repr, css, "style");
368 sp_repr_css_attr_unref(css);
369 }
370 if (css_current) {
371 sp_repr_css_attr_unref(css_current);
372 }
373 }
375 /**
376 * Returns the font size (in SVG pixels) of the text tool style (if text
377 * tool uses its own style) or desktop style (otherwise).
378 */
379 double
380 sp_desktop_get_font_size_tool(SPDesktop *desktop)
381 {
382 (void)desktop; // TODO cleanup
383 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
384 Glib::ustring desktop_style = prefs->getString("/desktop/style");
385 Glib::ustring style_str;
386 if ((prefs->getBool("/tools/text/usecurrent")) && !desktop_style.empty()) {
387 style_str = desktop_style;
388 } else {
389 style_str = prefs->getString("/tools/text/style");
390 }
392 double ret = 12;
393 if (!style_str.empty()) {
394 SPStyle *style = sp_style_new(SP_ACTIVE_DOCUMENT);
395 sp_style_merge_from_style_string(style, style_str.data());
396 ret = style->font_size.computed;
397 sp_style_unref(style);
398 }
399 return ret;
400 }
402 /** Determine average stroke width, simple method */
403 // see TODO in dialogs/stroke-style.cpp on how to get rid of this eventually
404 gdouble
405 stroke_average_width (GSList const *objects)
406 {
407 if (g_slist_length ((GSList *) objects) == 0)
408 return NR_HUGE;
410 gdouble avgwidth = 0.0;
411 bool notstroked = true;
412 int n_notstroked = 0;
414 for (GSList const *l = objects; l != NULL; l = l->next) {
415 if (!SP_IS_ITEM (l->data))
416 continue;
418 Geom::Matrix i2d = sp_item_i2d_affine (SP_ITEM(l->data));
420 SPObject *object = SP_OBJECT(l->data);
422 if ( object->style->stroke.isNone() ) {
423 ++n_notstroked; // do not count nonstroked objects
424 continue;
425 } else {
426 notstroked = false;
427 }
429 avgwidth += SP_OBJECT_STYLE (object)->stroke_width.computed * i2d.descrim();
430 }
432 if (notstroked)
433 return NR_HUGE;
435 return avgwidth / (g_slist_length ((GSList *) objects) - n_notstroked);
436 }
438 static bool vectorsClose( std::vector<double> const &lhs, std::vector<double> const &rhs )
439 {
440 static double epsilon = 1e-6;
441 bool isClose = false;
442 if ( lhs.size() == rhs.size() ) {
443 isClose = true;
444 for ( size_t i = 0; (i < lhs.size()) && isClose; ++i ) {
445 isClose = fabs(lhs[i] - rhs[i]) < epsilon;
446 }
447 }
448 return isClose;
449 }
452 /**
453 * Write to style_res the average fill or stroke of list of objects, if applicable.
454 */
455 int
456 objects_query_fillstroke (GSList *objects, SPStyle *style_res, bool const isfill)
457 {
458 if (g_slist_length(objects) == 0) {
459 /* No objects, set empty */
460 return QUERY_STYLE_NOTHING;
461 }
463 SPIPaint *paint_res = isfill? &style_res->fill : &style_res->stroke;
464 bool paintImpossible = true;
465 paint_res->set = TRUE;
467 SVGICCColor* iccColor = 0;
469 bool iccSeen = false;
470 gfloat c[4];
471 c[0] = c[1] = c[2] = c[3] = 0.0;
472 gint num = 0;
474 gfloat prev[3];
475 prev[0] = prev[1] = prev[2] = 0.0;
476 bool same_color = true;
478 for (GSList const *i = objects; i != NULL; i = i->next) {
479 SPObject *obj = SP_OBJECT (i->data);
480 SPStyle *style = SP_OBJECT_STYLE (obj);
481 if (!style) continue;
483 SPIPaint *paint = isfill? &style->fill : &style->stroke;
485 // We consider paint "effectively set" for anything within text hierarchy
486 SPObject *parent = SP_OBJECT_PARENT (obj);
487 bool paint_effectively_set =
488 paint->set || (SP_IS_TEXT(parent) || SP_IS_TEXTPATH(parent) || SP_IS_TSPAN(parent)
489 || SP_IS_FLOWTEXT(parent) || SP_IS_FLOWDIV(parent) || SP_IS_FLOWPARA(parent)
490 || SP_IS_FLOWTSPAN(parent) || SP_IS_FLOWLINE(parent));
492 // 1. Bail out with QUERY_STYLE_MULTIPLE_DIFFERENT if necessary
494 if ((!paintImpossible) && (!paint->isSameType(*paint_res) || (paint_res->set != paint_effectively_set))) {
495 return QUERY_STYLE_MULTIPLE_DIFFERENT; // different types of paint
496 }
498 if (paint_res->set && paint->set && paint_res->isPaintserver()) {
499 // both previous paint and this paint were a server, see if the servers are compatible
501 SPPaintServer *server_res = isfill? SP_STYLE_FILL_SERVER (style_res) : SP_STYLE_STROKE_SERVER (style_res);
502 SPPaintServer *server = isfill? SP_STYLE_FILL_SERVER (style) : SP_STYLE_STROKE_SERVER (style);
504 if (SP_IS_LINEARGRADIENT (server_res)) {
506 if (!SP_IS_LINEARGRADIENT(server))
507 return QUERY_STYLE_MULTIPLE_DIFFERENT; // different kind of server
509 SPGradient *vector = SP_GRADIENT(server)->getVector();
510 SPGradient *vector_res = SP_GRADIENT(server_res)->getVector();
511 if (vector_res != vector)
512 return QUERY_STYLE_MULTIPLE_DIFFERENT; // different gradient vectors
514 } else if (SP_IS_RADIALGRADIENT (server_res)) {
516 if (!SP_IS_RADIALGRADIENT(server))
517 return QUERY_STYLE_MULTIPLE_DIFFERENT; // different kind of server
519 SPGradient *vector = SP_GRADIENT(server)->getVector();
520 SPGradient *vector_res = SP_GRADIENT(server_res)->getVector();
521 if (vector_res != vector)
522 return QUERY_STYLE_MULTIPLE_DIFFERENT; // different gradient vectors
524 } else if (SP_IS_PATTERN (server_res)) {
526 if (!SP_IS_PATTERN(server))
527 return QUERY_STYLE_MULTIPLE_DIFFERENT; // different kind of server
529 SPPattern *pat = pattern_getroot (SP_PATTERN (server));
530 SPPattern *pat_res = pattern_getroot (SP_PATTERN (server_res));
531 if (pat_res != pat)
532 return QUERY_STYLE_MULTIPLE_DIFFERENT; // different pattern roots
533 }
534 }
536 // 2. Sum color, copy server from paint to paint_res
538 if (paint_res->set && paint_effectively_set && paint->isColor()) {
539 gfloat d[3];
540 sp_color_get_rgb_floatv (&paint->value.color, d);
542 // Check if this color is the same as previous
543 if (paintImpossible) {
544 prev[0] = d[0];
545 prev[1] = d[1];
546 prev[2] = d[2];
547 paint_res->setColor(d[0], d[1], d[2]);
548 iccColor = paint->value.color.icc;
549 iccSeen = true;
550 } else {
551 if (same_color && (prev[0] != d[0] || prev[1] != d[1] || prev[2] != d[2])) {
552 same_color = false;
553 iccColor = 0;
554 }
555 if ( iccSeen && iccColor ) {
556 if ( !paint->value.color.icc
557 || (iccColor->colorProfile != paint->value.color.icc->colorProfile)
558 || !vectorsClose(iccColor->colors, paint->value.color.icc->colors) ) {
559 same_color = false;
560 iccColor = 0;
561 }
562 }
563 }
565 // average color
566 c[0] += d[0];
567 c[1] += d[1];
568 c[2] += d[2];
569 c[3] += SP_SCALE24_TO_FLOAT (isfill? style->fill_opacity.value : style->stroke_opacity.value);
571 num ++;
572 }
574 paintImpossible = false;
575 paint_res->colorSet = paint->colorSet;
576 paint_res->currentcolor = paint->currentcolor;
577 if (paint_res->set && paint_effectively_set && paint->isPaintserver()) { // copy the server
578 if (isfill) {
579 sp_style_set_to_uri_string (style_res, true, style->getFillURI());
580 } else {
581 sp_style_set_to_uri_string (style_res, false, style->getStrokeURI());
582 }
583 }
584 paint_res->set = paint_effectively_set;
585 style_res->fill_rule.computed = style->fill_rule.computed; // no averaging on this, just use the last one
586 }
588 // After all objects processed, divide the color if necessary and return
589 if (paint_res->set && paint_res->isColor()) { // set the color
590 g_assert (num >= 1);
592 c[0] /= num;
593 c[1] /= num;
594 c[2] /= num;
595 c[3] /= num;
596 paint_res->setColor(c[0], c[1], c[2]);
597 if (isfill) {
598 style_res->fill_opacity.value = SP_SCALE24_FROM_FLOAT (c[3]);
599 } else {
600 style_res->stroke_opacity.value = SP_SCALE24_FROM_FLOAT (c[3]);
601 }
604 if ( iccSeen && iccColor ) {
605 // TODO check for existing
606 SVGICCColor* tmp = new SVGICCColor(*iccColor);
607 paint_res->value.color.icc = tmp;
608 }
610 if (num > 1) {
611 if (same_color)
612 return QUERY_STYLE_MULTIPLE_SAME;
613 else
614 return QUERY_STYLE_MULTIPLE_AVERAGED;
615 } else {
616 return QUERY_STYLE_SINGLE;
617 }
618 }
620 // Not color
621 if (g_slist_length(objects) > 1) {
622 return QUERY_STYLE_MULTIPLE_SAME;
623 } else {
624 return QUERY_STYLE_SINGLE;
625 }
626 }
628 /**
629 * Write to style_res the average opacity of a list of objects.
630 */
631 int
632 objects_query_opacity (GSList *objects, SPStyle *style_res)
633 {
634 if (g_slist_length(objects) == 0) {
635 /* No objects, set empty */
636 return QUERY_STYLE_NOTHING;
637 }
639 gdouble opacity_sum = 0;
640 gdouble opacity_prev = -1;
641 bool same_opacity = true;
642 guint opacity_items = 0;
645 for (GSList const *i = objects; i != NULL; i = i->next) {
646 SPObject *obj = SP_OBJECT (i->data);
647 SPStyle *style = SP_OBJECT_STYLE (obj);
648 if (!style) continue;
650 double opacity = SP_SCALE24_TO_FLOAT(style->opacity.value);
651 opacity_sum += opacity;
652 if (opacity_prev != -1 && opacity != opacity_prev)
653 same_opacity = false;
654 opacity_prev = opacity;
655 opacity_items ++;
656 }
657 if (opacity_items > 1)
658 opacity_sum /= opacity_items;
660 style_res->opacity.value = SP_SCALE24_FROM_FLOAT(opacity_sum);
662 if (opacity_items == 0) {
663 return QUERY_STYLE_NOTHING;
664 } else if (opacity_items == 1) {
665 return QUERY_STYLE_SINGLE;
666 } else {
667 if (same_opacity)
668 return QUERY_STYLE_MULTIPLE_SAME;
669 else
670 return QUERY_STYLE_MULTIPLE_AVERAGED;
671 }
672 }
674 /**
675 * Write to style_res the average stroke width of a list of objects.
676 */
677 int
678 objects_query_strokewidth (GSList *objects, SPStyle *style_res)
679 {
680 if (g_slist_length(objects) == 0) {
681 /* No objects, set empty */
682 return QUERY_STYLE_NOTHING;
683 }
685 gdouble avgwidth = 0.0;
687 gdouble prev_sw = -1;
688 bool same_sw = true;
689 bool noneSet = true; // is stroke set to none?
691 int n_stroked = 0;
693 for (GSList const *i = objects; i != NULL; i = i->next) {
694 SPObject *obj = SP_OBJECT (i->data);
695 if (!SP_IS_ITEM(obj)) continue;
696 SPStyle *style = SP_OBJECT_STYLE (obj);
697 if (!style) continue;
699 if ( style->stroke.isNone() && !(
700 style->marker[SP_MARKER_LOC].set || // stroke width affects markers, so if there's no stroke but only markers then we should
701 style->marker[SP_MARKER_LOC_START].set || // still calculate the stroke width
702 style->marker[SP_MARKER_LOC_MID].set ||
703 style->marker[SP_MARKER_LOC_END].set))
704 {
705 continue;
706 }
708 n_stroked ++;
710 noneSet &= style->stroke.isNone();
712 Geom::Matrix i2d = sp_item_i2d_affine (SP_ITEM(obj));
713 double sw = style->stroke_width.computed * i2d.descrim();
715 if (prev_sw != -1 && fabs(sw - prev_sw) > 1e-3)
716 same_sw = false;
717 prev_sw = sw;
719 avgwidth += sw;
720 }
722 if (n_stroked > 1)
723 avgwidth /= (n_stroked);
725 style_res->stroke_width.computed = avgwidth;
726 style_res->stroke_width.set = true;
727 style_res->stroke.noneSet = noneSet; // Will only be true if none of the selected objects has it's stroke set.
729 if (n_stroked == 0) {
730 return QUERY_STYLE_NOTHING;
731 } else if (n_stroked == 1) {
732 return QUERY_STYLE_SINGLE;
733 } else {
734 if (same_sw)
735 return QUERY_STYLE_MULTIPLE_SAME;
736 else
737 return QUERY_STYLE_MULTIPLE_AVERAGED;
738 }
739 }
741 /**
742 * Write to style_res the average miter limit of a list of objects.
743 */
744 int
745 objects_query_miterlimit (GSList *objects, SPStyle *style_res)
746 {
747 if (g_slist_length(objects) == 0) {
748 /* No objects, set empty */
749 return QUERY_STYLE_NOTHING;
750 }
752 gdouble avgml = 0.0;
753 int n_stroked = 0;
755 gdouble prev_ml = -1;
756 bool same_ml = true;
758 for (GSList const *i = objects; i != NULL; i = i->next) {
759 SPObject *obj = SP_OBJECT (i->data);
760 if (!SP_IS_ITEM(obj)) continue;
761 SPStyle *style = SP_OBJECT_STYLE (obj);
762 if (!style) continue;
764 if ( style->stroke.isNone() ) {
765 continue;
766 }
768 n_stroked ++;
770 if (prev_ml != -1 && fabs(style->stroke_miterlimit.value - prev_ml) > 1e-3)
771 same_ml = false;
772 prev_ml = style->stroke_miterlimit.value;
774 avgml += style->stroke_miterlimit.value;
775 }
777 if (n_stroked > 1)
778 avgml /= (n_stroked);
780 style_res->stroke_miterlimit.value = avgml;
781 style_res->stroke_miterlimit.set = true;
783 if (n_stroked == 0) {
784 return QUERY_STYLE_NOTHING;
785 } else if (n_stroked == 1) {
786 return QUERY_STYLE_SINGLE;
787 } else {
788 if (same_ml)
789 return QUERY_STYLE_MULTIPLE_SAME;
790 else
791 return QUERY_STYLE_MULTIPLE_AVERAGED;
792 }
793 }
795 /**
796 * Write to style_res the stroke cap of a list of objects.
797 */
798 int
799 objects_query_strokecap (GSList *objects, SPStyle *style_res)
800 {
801 if (g_slist_length(objects) == 0) {
802 /* No objects, set empty */
803 return QUERY_STYLE_NOTHING;
804 }
806 int cap = -1;
807 gdouble prev_cap = -1;
808 bool same_cap = true;
809 int n_stroked = 0;
811 for (GSList const *i = objects; i != NULL; i = i->next) {
812 SPObject *obj = SP_OBJECT (i->data);
813 if (!SP_IS_ITEM(obj)) continue;
814 SPStyle *style = SP_OBJECT_STYLE (obj);
815 if (!style) continue;
817 if ( style->stroke.isNone() ) {
818 continue;
819 }
821 n_stroked ++;
823 if (prev_cap != -1 && style->stroke_linecap.value != prev_cap)
824 same_cap = false;
825 prev_cap = style->stroke_linecap.value;
827 cap = style->stroke_linecap.value;
828 }
830 style_res->stroke_linecap.value = cap;
831 style_res->stroke_linecap.set = true;
833 if (n_stroked == 0) {
834 return QUERY_STYLE_NOTHING;
835 } else if (n_stroked == 1) {
836 return QUERY_STYLE_SINGLE;
837 } else {
838 if (same_cap)
839 return QUERY_STYLE_MULTIPLE_SAME;
840 else
841 return QUERY_STYLE_MULTIPLE_DIFFERENT;
842 }
843 }
845 /**
846 * Write to style_res the stroke join of a list of objects.
847 */
848 int
849 objects_query_strokejoin (GSList *objects, SPStyle *style_res)
850 {
851 if (g_slist_length(objects) == 0) {
852 /* No objects, set empty */
853 return QUERY_STYLE_NOTHING;
854 }
856 int join = -1;
857 gdouble prev_join = -1;
858 bool same_join = true;
859 int n_stroked = 0;
861 for (GSList const *i = objects; i != NULL; i = i->next) {
862 SPObject *obj = SP_OBJECT (i->data);
863 if (!SP_IS_ITEM(obj)) continue;
864 SPStyle *style = SP_OBJECT_STYLE (obj);
865 if (!style) continue;
867 if ( style->stroke.isNone() ) {
868 continue;
869 }
871 n_stroked ++;
873 if (prev_join != -1 && style->stroke_linejoin.value != prev_join)
874 same_join = false;
875 prev_join = style->stroke_linejoin.value;
877 join = style->stroke_linejoin.value;
878 }
880 style_res->stroke_linejoin.value = join;
881 style_res->stroke_linejoin.set = true;
883 if (n_stroked == 0) {
884 return QUERY_STYLE_NOTHING;
885 } else if (n_stroked == 1) {
886 return QUERY_STYLE_SINGLE;
887 } else {
888 if (same_join)
889 return QUERY_STYLE_MULTIPLE_SAME;
890 else
891 return QUERY_STYLE_MULTIPLE_DIFFERENT;
892 }
893 }
895 /**
896 * Write to style_res the average font size and spacing of objects.
897 */
898 int
899 objects_query_fontnumbers (GSList *objects, SPStyle *style_res)
900 {
901 bool different = false;
903 double size = 0;
904 double letterspacing = 0;
905 double wordspacing = 0;
906 double linespacing = 0;
907 bool letterspacing_normal = false;
908 bool wordspacing_normal = false;
909 bool linespacing_normal = false;
911 double size_prev = 0;
912 double letterspacing_prev = 0;
913 double wordspacing_prev = 0;
914 double linespacing_prev = 0;
916 int texts = 0;
918 for (GSList const *i = objects; i != NULL; i = i->next) {
919 SPObject *obj = SP_OBJECT (i->data);
921 if (!SP_IS_TEXT(obj) && !SP_IS_FLOWTEXT(obj)
922 && !SP_IS_TSPAN(obj) && !SP_IS_TREF(obj) && !SP_IS_TEXTPATH(obj)
923 && !SP_IS_FLOWDIV(obj) && !SP_IS_FLOWPARA(obj) && !SP_IS_FLOWTSPAN(obj))
924 continue;
926 SPStyle *style = SP_OBJECT_STYLE (obj);
927 if (!style) continue;
929 texts ++;
930 size += style->font_size.computed * Geom::Matrix(sp_item_i2d_affine(SP_ITEM(obj))).descrim(); /// \todo FIXME: we assume non-% units here
932 if (style->letter_spacing.normal) {
933 if (!different && (letterspacing_prev == 0 || letterspacing_prev == letterspacing))
934 letterspacing_normal = true;
935 } else {
936 letterspacing += style->letter_spacing.computed; /// \todo FIXME: we assume non-% units here
937 letterspacing_normal = false;
938 }
940 if (style->word_spacing.normal) {
941 if (!different && (wordspacing_prev == 0 || wordspacing_prev == wordspacing))
942 wordspacing_normal = true;
943 } else {
944 wordspacing += style->word_spacing.computed; /// \todo FIXME: we assume non-% units here
945 wordspacing_normal = false;
946 }
948 double linespacing_current;
949 if (style->line_height.normal) {
950 linespacing_current = Inkscape::Text::Layout::LINE_HEIGHT_NORMAL;
951 if (!different && (linespacing_prev == 0 || linespacing_prev == linespacing_current))
952 linespacing_normal = true;
953 } else if (style->line_height.unit == SP_CSS_UNIT_PERCENT || style->font_size.computed == 0) {
954 linespacing_current = style->line_height.value;
955 linespacing_normal = false;
956 } else { // we need % here
957 linespacing_current = style->line_height.computed / style->font_size.computed;
958 linespacing_normal = false;
959 }
960 linespacing += linespacing_current;
962 if ((size_prev != 0 && style->font_size.computed != size_prev) ||
963 (letterspacing_prev != 0 && style->letter_spacing.computed != letterspacing_prev) ||
964 (wordspacing_prev != 0 && style->word_spacing.computed != wordspacing_prev) ||
965 (linespacing_prev != 0 && linespacing_current != linespacing_prev)) {
966 different = true;
967 }
969 size_prev = style->font_size.computed;
970 letterspacing_prev = style->letter_spacing.computed;
971 wordspacing_prev = style->word_spacing.computed;
972 linespacing_prev = linespacing_current;
974 // FIXME: we must detect MULTIPLE_DIFFERENT for these too
975 style_res->text_anchor.computed = style->text_anchor.computed;
976 style_res->writing_mode.computed = style->writing_mode.computed;
977 }
979 if (texts == 0)
980 return QUERY_STYLE_NOTHING;
982 if (texts > 1) {
983 size /= texts;
984 letterspacing /= texts;
985 wordspacing /= texts;
986 linespacing /= texts;
987 }
989 style_res->font_size.computed = size;
990 style_res->font_size.type = SP_FONT_SIZE_LENGTH;
992 style_res->letter_spacing.normal = letterspacing_normal;
993 style_res->letter_spacing.computed = letterspacing;
995 style_res->word_spacing.normal = wordspacing_normal;
996 style_res->word_spacing.computed = wordspacing;
998 style_res->line_height.normal = linespacing_normal;
999 style_res->line_height.computed = linespacing;
1000 style_res->line_height.value = linespacing;
1001 style_res->line_height.unit = SP_CSS_UNIT_PERCENT;
1003 if (texts > 1) {
1004 if (different) {
1005 return QUERY_STYLE_MULTIPLE_AVERAGED;
1006 } else {
1007 return QUERY_STYLE_MULTIPLE_SAME;
1008 }
1009 } else {
1010 return QUERY_STYLE_SINGLE;
1011 }
1012 }
1014 /**
1015 * Write to style_res the average font style of objects.
1016 */
1017 int
1018 objects_query_fontstyle (GSList *objects, SPStyle *style_res)
1019 {
1020 bool different = false;
1021 bool set = false;
1023 int texts = 0;
1025 for (GSList const *i = objects; i != NULL; i = i->next) {
1026 SPObject *obj = SP_OBJECT (i->data);
1028 if (!SP_IS_TEXT(obj) && !SP_IS_FLOWTEXT(obj)
1029 && !SP_IS_TSPAN(obj) && !SP_IS_TREF(obj) && !SP_IS_TEXTPATH(obj)
1030 && !SP_IS_FLOWDIV(obj) && !SP_IS_FLOWPARA(obj) && !SP_IS_FLOWTSPAN(obj))
1031 continue;
1033 SPStyle *style = SP_OBJECT_STYLE (obj);
1034 if (!style) continue;
1036 texts ++;
1038 if (set &&
1039 font_style_to_pos(*style_res).signature() != font_style_to_pos(*style).signature() ) {
1040 different = true; // different styles
1041 }
1043 set = TRUE;
1044 style_res->font_weight.value = style_res->font_weight.computed = style->font_weight.computed;
1045 style_res->font_style.value = style_res->font_style.computed = style->font_style.computed;
1046 style_res->font_stretch.value = style_res->font_stretch.computed = style->font_stretch.computed;
1047 style_res->font_variant.value = style_res->font_variant.computed = style->font_variant.computed;
1048 style_res->text_align.value = style_res->text_align.computed = style->text_align.computed;
1049 }
1051 if (texts == 0 || !set)
1052 return QUERY_STYLE_NOTHING;
1054 if (texts > 1) {
1055 if (different) {
1056 return QUERY_STYLE_MULTIPLE_DIFFERENT;
1057 } else {
1058 return QUERY_STYLE_MULTIPLE_SAME;
1059 }
1060 } else {
1061 return QUERY_STYLE_SINGLE;
1062 }
1063 }
1065 /**
1066 * Write to style_res the baseline numbers.
1067 */
1068 int
1069 objects_query_baselines (GSList *objects, SPStyle *style_res)
1070 {
1071 bool different = false;
1073 // Only baseline-shift at the moment
1074 // We will return:
1075 // If baseline-shift is same for all objects:
1076 // The full baseline-shift data (used for subscripts and superscripts)
1077 // If baseline-shift is different:
1078 // The average baseline-shift (not implemented at the moment as this is complicated June 2010)
1079 SPIBaselineShift old;
1080 old.value = 0.0;
1081 old.computed = 0.0;
1083 // double baselineshift = 0.0;
1084 bool set = false;
1086 int texts = 0;
1088 for (GSList const *i = objects; i != NULL; i = i->next) {
1089 SPObject *obj = SP_OBJECT (i->data);
1091 if (!SP_IS_TEXT(obj) && !SP_IS_FLOWTEXT(obj)
1092 && !SP_IS_TSPAN(obj) && !SP_IS_TREF(obj) && !SP_IS_TEXTPATH(obj)
1093 && !SP_IS_FLOWDIV(obj) && !SP_IS_FLOWPARA(obj) && !SP_IS_FLOWTSPAN(obj))
1094 continue;
1096 SPStyle *style = SP_OBJECT_STYLE (obj);
1097 if (!style) continue;
1099 texts ++;
1101 SPIBaselineShift current;
1102 if(style->baseline_shift.set) {
1104 current.set = style->baseline_shift.set;
1105 current.inherit = style->baseline_shift.inherit;
1106 current.type = style->baseline_shift.type;
1107 current.literal = style->baseline_shift.literal;
1108 current.value = style->baseline_shift.value;
1109 current.computed = style->baseline_shift.computed;
1111 if( set ) {
1112 if( current.set != old.set ||
1113 current.inherit != old.inherit ||
1114 current.type != old.type ||
1115 current.literal != old.literal ||
1116 current.value != old.value ||
1117 current.computed != old.computed ) {
1118 // Maybe this needs to be better thought out.
1119 different = true;
1120 }
1121 }
1123 set = true;
1125 old.set = current.set;
1126 old.inherit = current.inherit;
1127 old.type = current.type;
1128 old.literal = current.literal;
1129 old.value = current.value;
1130 old.computed = current.computed;
1131 }
1132 }
1134 if (different || !set ) {
1135 style_res->baseline_shift.set = false;
1136 style_res->baseline_shift.computed = 0.0;
1137 } else {
1138 style_res->baseline_shift.set = old.set;
1139 style_res->baseline_shift.inherit = old.inherit;
1140 style_res->baseline_shift.type = old.type;
1141 style_res->baseline_shift.literal = old.literal;
1142 style_res->baseline_shift.value = old.value;
1143 style_res->baseline_shift.computed = old.computed;
1144 }
1146 if (texts == 0 || !set)
1147 return QUERY_STYLE_NOTHING;
1149 if (texts > 1) {
1150 if (different) {
1151 return QUERY_STYLE_MULTIPLE_DIFFERENT;
1152 } else {
1153 return QUERY_STYLE_MULTIPLE_SAME;
1154 }
1155 } else {
1156 return QUERY_STYLE_SINGLE;
1157 }
1158 }
1160 /**
1161 * Write to style_res the average font family of objects.
1162 */
1163 int
1164 objects_query_fontfamily (GSList *objects, SPStyle *style_res)
1165 {
1166 bool different = false;
1167 int texts = 0;
1169 if (style_res->text->font_family.value) {
1170 g_free(style_res->text->font_family.value);
1171 style_res->text->font_family.value = NULL;
1172 }
1173 style_res->text->font_family.set = FALSE;
1175 for (GSList const *i = objects; i != NULL; i = i->next) {
1176 SPObject *obj = SP_OBJECT (i->data);
1178 // std::cout << " " << SP_OBJECT_ID (i->data) << std::endl;
1179 if (!SP_IS_TEXT(obj) && !SP_IS_FLOWTEXT(obj)
1180 && !SP_IS_TSPAN(obj) && !SP_IS_TREF(obj) && !SP_IS_TEXTPATH(obj)
1181 && !SP_IS_FLOWDIV(obj) && !SP_IS_FLOWPARA(obj) && !SP_IS_FLOWTSPAN(obj))
1182 continue;
1184 SPStyle *style = SP_OBJECT_STYLE (obj);
1185 if (!style) continue;
1187 texts ++;
1189 if (style_res->text->font_family.value && style->text->font_family.value &&
1190 strcmp (style_res->text->font_family.value, style->text->font_family.value)) {
1191 different = true; // different fonts
1192 }
1194 if (style_res->text->font_family.value) {
1195 g_free(style_res->text->font_family.value);
1196 style_res->text->font_family.value = NULL;
1197 }
1199 style_res->text->font_family.set = TRUE;
1200 style_res->text->font_family.value = g_strdup(style->text->font_family.value);
1201 }
1203 if (texts == 0 || !style_res->text->font_family.set)
1204 return QUERY_STYLE_NOTHING;
1206 if (texts > 1) {
1207 if (different) {
1208 return QUERY_STYLE_MULTIPLE_DIFFERENT;
1209 } else {
1210 return QUERY_STYLE_MULTIPLE_SAME;
1211 }
1212 } else {
1213 return QUERY_STYLE_SINGLE;
1214 }
1215 }
1217 int
1218 objects_query_fontspecification (GSList *objects, SPStyle *style_res)
1219 {
1220 bool different = false;
1221 int texts = 0;
1223 if (style_res->text->font_specification.value) {
1224 g_free(style_res->text->font_specification.value);
1225 style_res->text->font_specification.value = NULL;
1226 }
1227 style_res->text->font_specification.set = FALSE;
1229 for (GSList const *i = objects; i != NULL; i = i->next) {
1230 SPObject *obj = SP_OBJECT (i->data);
1232 // std::cout << " " << SP_OBJECT_ID (i->data) << std::endl;
1233 if (!SP_IS_TEXT(obj) && !SP_IS_FLOWTEXT(obj)
1234 && !SP_IS_TSPAN(obj) && !SP_IS_TREF(obj) && !SP_IS_TEXTPATH(obj)
1235 && !SP_IS_FLOWDIV(obj) && !SP_IS_FLOWPARA(obj) && !SP_IS_FLOWTSPAN(obj))
1236 continue;
1238 SPStyle *style = SP_OBJECT_STYLE (obj);
1239 if (!style) continue;
1241 texts ++;
1243 if (style_res->text->font_specification.value && style_res->text->font_specification.set &&
1244 style->text->font_specification.value && style->text->font_specification.set &&
1245 strcmp (style_res->text->font_specification.value, style->text->font_specification.value)) {
1246 different = true; // different fonts
1247 }
1249 if (style->text->font_specification.set) {
1251 if (style_res->text->font_specification.value) {
1252 g_free(style_res->text->font_specification.value);
1253 style_res->text->font_specification.value = NULL;
1254 }
1256 style_res->text->font_specification.set = TRUE;
1257 style_res->text->font_specification.value = g_strdup(style->text->font_specification.value);
1258 }
1259 }
1261 if (texts == 0)
1262 return QUERY_STYLE_NOTHING;
1264 if (texts > 1) {
1265 if (different) {
1266 return QUERY_STYLE_MULTIPLE_DIFFERENT;
1267 } else {
1268 return QUERY_STYLE_MULTIPLE_SAME;
1269 }
1270 } else {
1271 return QUERY_STYLE_SINGLE;
1272 }
1273 }
1275 int
1276 objects_query_blend (GSList *objects, SPStyle *style_res)
1277 {
1278 const int empty_prev = -2;
1279 const int complex_filter = 5;
1280 int blend = 0;
1281 float blend_prev = empty_prev;
1282 bool same_blend = true;
1283 guint items = 0;
1285 for (GSList const *i = objects; i != NULL; i = i->next) {
1286 SPObject *obj = SP_OBJECT (i->data);
1287 SPStyle *style = SP_OBJECT_STYLE (obj);
1288 if(!style || !SP_IS_ITEM(obj)) continue;
1290 items++;
1292 //if object has a filter
1293 if (style->filter.set && style->getFilter()) {
1294 int blurcount = 0;
1295 int blendcount = 0;
1297 // determine whether filter is simple (blend and/or blur) or complex
1298 for(SPObject *primitive_obj = style->getFilter()->children;
1299 primitive_obj && SP_IS_FILTER_PRIMITIVE(primitive_obj);
1300 primitive_obj = primitive_obj->next) {
1301 SPFilterPrimitive *primitive = SP_FILTER_PRIMITIVE(primitive_obj);
1302 if(SP_IS_FEBLEND(primitive))
1303 ++blendcount;
1304 else if(SP_IS_GAUSSIANBLUR(primitive))
1305 ++blurcount;
1306 else {
1307 blurcount = complex_filter;
1308 break;
1309 }
1310 }
1312 // simple filter
1313 if(blurcount == 1 || blendcount == 1) {
1314 for(SPObject *primitive_obj = style->getFilter()->children;
1315 primitive_obj && SP_IS_FILTER_PRIMITIVE(primitive_obj);
1316 primitive_obj = primitive_obj->next) {
1317 if(SP_IS_FEBLEND(primitive_obj)) {
1318 SPFeBlend *spblend = SP_FEBLEND(primitive_obj);
1319 blend = spblend->blend_mode;
1320 }
1321 }
1322 }
1323 else {
1324 blend = complex_filter;
1325 }
1326 }
1327 // defaults to blend mode = "normal"
1328 else {
1329 blend = 0;
1330 }
1332 if(blend_prev != empty_prev && blend_prev != blend)
1333 same_blend = false;
1334 blend_prev = blend;
1335 }
1337 if (items > 0) {
1338 style_res->filter_blend_mode.value = blend;
1339 }
1341 if (items == 0) {
1342 return QUERY_STYLE_NOTHING;
1343 } else if (items == 1) {
1344 return QUERY_STYLE_SINGLE;
1345 } else {
1346 if(same_blend)
1347 return QUERY_STYLE_MULTIPLE_SAME;
1348 else
1349 return QUERY_STYLE_MULTIPLE_DIFFERENT;
1350 }
1351 }
1353 /**
1354 * Write to style_res the average blurring of a list of objects.
1355 */
1356 int
1357 objects_query_blur (GSList *objects, SPStyle *style_res)
1358 {
1359 if (g_slist_length(objects) == 0) {
1360 /* No objects, set empty */
1361 return QUERY_STYLE_NOTHING;
1362 }
1364 float blur_sum = 0;
1365 float blur_prev = -1;
1366 bool same_blur = true;
1367 guint blur_items = 0;
1368 guint items = 0;
1370 for (GSList const *i = objects; i != NULL; i = i->next) {
1371 SPObject *obj = SP_OBJECT (i->data);
1372 SPStyle *style = SP_OBJECT_STYLE (obj);
1373 if (!style) continue;
1374 if (!SP_IS_ITEM(obj)) continue;
1376 Geom::Matrix i2d = sp_item_i2d_affine (SP_ITEM(obj));
1378 items ++;
1380 //if object has a filter
1381 if (style->filter.set && style->getFilter()) {
1382 //cycle through filter primitives
1383 SPObject *primitive_obj = style->getFilter()->children;
1384 while (primitive_obj) {
1385 if (SP_IS_FILTER_PRIMITIVE(primitive_obj)) {
1386 SPFilterPrimitive *primitive = SP_FILTER_PRIMITIVE(primitive_obj);
1388 //if primitive is gaussianblur
1389 if(SP_IS_GAUSSIANBLUR(primitive)) {
1390 SPGaussianBlur * spblur = SP_GAUSSIANBLUR(primitive);
1391 float num = spblur->stdDeviation.getNumber();
1392 blur_sum += num * i2d.descrim();
1393 if (blur_prev != -1 && fabs (num - blur_prev) > 1e-2) // rather low tolerance because difference in blur radii is much harder to notice than e.g. difference in sizes
1394 same_blur = false;
1395 blur_prev = num;
1396 //TODO: deal with opt number, for the moment it's not necessary to the ui.
1397 blur_items ++;
1398 }
1399 }
1400 primitive_obj = primitive_obj->next;
1401 }
1402 }
1403 }
1405 if (items > 0) {
1406 if (blur_items > 0)
1407 blur_sum /= blur_items;
1408 style_res->filter_gaussianBlur_deviation.value = blur_sum;
1409 }
1411 if (items == 0) {
1412 return QUERY_STYLE_NOTHING;
1413 } else if (items == 1) {
1414 return QUERY_STYLE_SINGLE;
1415 } else {
1416 if (same_blur)
1417 return QUERY_STYLE_MULTIPLE_SAME;
1418 else
1419 return QUERY_STYLE_MULTIPLE_AVERAGED;
1420 }
1421 }
1423 /**
1424 * Query the given list of objects for the given property, write
1425 * the result to style, return appropriate flag.
1426 */
1427 int
1428 sp_desktop_query_style_from_list (GSList *list, SPStyle *style, int property)
1429 {
1430 if (property == QUERY_STYLE_PROPERTY_FILL) {
1431 return objects_query_fillstroke (list, style, true);
1432 } else if (property == QUERY_STYLE_PROPERTY_STROKE) {
1433 return objects_query_fillstroke (list, style, false);
1435 } else if (property == QUERY_STYLE_PROPERTY_STROKEWIDTH) {
1436 return objects_query_strokewidth (list, style);
1437 } else if (property == QUERY_STYLE_PROPERTY_STROKEMITERLIMIT) {
1438 return objects_query_miterlimit (list, style);
1439 } else if (property == QUERY_STYLE_PROPERTY_STROKECAP) {
1440 return objects_query_strokecap (list, style);
1441 } else if (property == QUERY_STYLE_PROPERTY_STROKEJOIN) {
1442 return objects_query_strokejoin (list, style);
1444 } else if (property == QUERY_STYLE_PROPERTY_MASTEROPACITY) {
1445 return objects_query_opacity (list, style);
1447 } else if (property == QUERY_STYLE_PROPERTY_FONT_SPECIFICATION) {
1448 return objects_query_fontspecification (list, style);
1449 } else if (property == QUERY_STYLE_PROPERTY_FONTFAMILY) {
1450 return objects_query_fontfamily (list, style);
1451 } else if (property == QUERY_STYLE_PROPERTY_FONTSTYLE) {
1452 return objects_query_fontstyle (list, style);
1453 } else if (property == QUERY_STYLE_PROPERTY_FONTNUMBERS) {
1454 return objects_query_fontnumbers (list, style);
1455 } else if (property == QUERY_STYLE_PROPERTY_BASELINES) {
1456 return objects_query_baselines (list, style);
1458 } else if (property == QUERY_STYLE_PROPERTY_BLEND) {
1459 return objects_query_blend (list, style);
1460 } else if (property == QUERY_STYLE_PROPERTY_BLUR) {
1461 return objects_query_blur (list, style);
1462 }
1463 return QUERY_STYLE_NOTHING;
1464 }
1467 /**
1468 * Query the subselection (if any) or selection on the given desktop for the given property, write
1469 * the result to style, return appropriate flag.
1470 */
1471 int
1472 sp_desktop_query_style(SPDesktop *desktop, SPStyle *style, int property)
1473 {
1474 int ret = desktop->_query_style_signal.emit(style, property);
1476 if (ret != QUERY_STYLE_NOTHING)
1477 return ret; // subselection returned a style, pass it on
1479 // otherwise, do querying and averaging over selection
1480 if (desktop->selection != NULL) {
1481 return sp_desktop_query_style_from_list ((GSList *) desktop->selection->itemList(), style, property);
1482 }
1484 return QUERY_STYLE_NOTHING;
1485 }
1487 /**
1488 * Do the same as sp_desktop_query_style for all (defined) style properties, return true if at
1489 * least one of the properties did not return QUERY_STYLE_NOTHING.
1490 */
1491 bool
1492 sp_desktop_query_style_all (SPDesktop *desktop, SPStyle *query)
1493 {
1494 int result_family = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_FONTFAMILY);
1495 int result_fstyle = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_FONTSTYLE);
1496 int result_fnumbers = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_FONTNUMBERS);
1497 int result_fill = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_FILL);
1498 int result_stroke = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_STROKE);
1499 int result_strokewidth = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_STROKEWIDTH);
1500 int result_strokemiterlimit = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_STROKEMITERLIMIT);
1501 int result_strokecap = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_STROKECAP);
1502 int result_strokejoin = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_STROKEJOIN);
1503 int result_opacity = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_MASTEROPACITY);
1504 int result_blur = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_BLUR);
1506 return (result_family != QUERY_STYLE_NOTHING ||
1507 result_fstyle != QUERY_STYLE_NOTHING ||
1508 result_fnumbers != QUERY_STYLE_NOTHING ||
1509 result_fill != QUERY_STYLE_NOTHING ||
1510 result_stroke != QUERY_STYLE_NOTHING ||
1511 result_opacity != QUERY_STYLE_NOTHING ||
1512 result_strokewidth != QUERY_STYLE_NOTHING ||
1513 result_strokemiterlimit != QUERY_STYLE_NOTHING ||
1514 result_strokecap != QUERY_STYLE_NOTHING ||
1515 result_strokejoin != QUERY_STYLE_NOTHING ||
1516 result_blur != QUERY_STYLE_NOTHING);
1517 }
1520 /*
1521 Local Variables:
1522 mode:c++
1523 c-file-style:"stroustrup"
1524 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1525 indent-tabs-mode:nil
1526 fill-column:99
1527 End:
1528 */
1529 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :