1 /** @file
2 * @brief System-wide clipboard management - implementation
3 */
4 /* Authors:
5 * Krzysztof KosiĆski <tweenk@o2.pl>
6 * Jon A. Cruz <jon@joncruz.org>
7 * Incorporates some code from selection-chemistry.cpp, see that file for more credits.
8 *
9 * Copyright (C) 2008 authors
10 * Copyright (C) 2010 Jon A. Cruz
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * See the file COPYING for details.
18 */
20 #include "ui/clipboard.h"
22 // TODO: reduce header bloat if possible
24 #include <list>
25 #include <algorithm>
26 #include <gtkmm/clipboard.h>
27 #include <glibmm/ustring.h>
28 #include <glibmm/i18n.h>
29 #include <glib/gstdio.h> // for g_file_set_contents etc., used in _onGet and paste
30 #include "gc-core.h"
31 #include "xml/repr.h"
32 #include "inkscape.h"
33 #include "io/stringstream.h"
34 #include "desktop.h"
35 #include "desktop-handles.h"
36 #include "desktop-style.h" // for sp_desktop_set_style, used in _pasteStyle
37 #include "document.h"
38 #include "document-private.h"
39 #include "selection.h"
40 #include "message-stack.h"
41 #include "context-fns.h"
42 #include "dropper-context.h" // used in copy()
43 #include "style.h"
44 #include "extension/db.h" // extension database
45 #include "extension/input.h"
46 #include "extension/output.h"
47 #include "selection-chemistry.h"
48 #include "libnr/nr-rect.h"
49 #include "libnr/nr-convert2geom.h"
50 #include <2geom/rect.h>
51 #include <2geom/transforms.h>
52 #include "box3d.h"
53 #include "gradient-drag.h"
54 #include "sp-item.h"
55 #include "sp-item-transform.h" // for sp_item_scale_rel, used in _pasteSize
56 #include "sp-path.h"
57 #include "sp-pattern.h"
58 #include "sp-shape.h"
59 #include "sp-gradient.h"
60 #include "sp-gradient-reference.h"
61 #include "sp-gradient-fns.h"
62 #include "sp-linear-gradient-fns.h"
63 #include "sp-radial-gradient-fns.h"
64 #include "sp-clippath.h"
65 #include "sp-mask.h"
66 #include "sp-textpath.h"
67 #include "sp-rect.h"
68 #include "live_effects/lpeobject.h"
69 #include "live_effects/lpeobject-reference.h"
70 #include "live_effects/parameter/path.h"
71 #include "svg/svg.h" // for sp_svg_transform_write, used in _copySelection
72 #include "svg/css-ostringstream.h" // used in _parseColor
73 #include "file.h" // for file_import, used in _pasteImage
74 #include "text-context.h"
75 #include "text-editing.h"
76 #include "tools-switch.h"
77 #include "path-chemistry.h"
78 #include "id-clash.h"
79 #include "unit-constants.h"
80 #include "helper/png-write.h"
81 #include "svg/svg-color.h"
82 #include "sp-namedview.h"
83 #include "snap.h"
85 /// @brief Made up mimetype to represent Gdk::Pixbuf clipboard contents
86 #define CLIPBOARD_GDK_PIXBUF_TARGET "image/x-gdk-pixbuf"
88 #define CLIPBOARD_TEXT_TARGET "text/plain"
90 #ifdef WIN32
91 #include <windows.h>
92 // Clipboard Formats: http://msdn.microsoft.com/en-us/library/ms649013(VS.85).aspx
93 // On Windows, most graphical applications can handle CF_DIB/CF_BITMAP and/or CF_ENHMETAFILE
94 // GTK automatically presents an "image/bmp" target as CF_DIB/CF_BITMAP
95 // Presenting "image/x-emf" as CF_ENHMETAFILE must be done by Inkscape ?
96 #define CLIPBOARD_WIN32_EMF_TARGET "CF_ENHMETAFILE"
97 #define CLIPBOARD_WIN32_EMF_MIME "image/x-emf"
98 #endif
100 namespace Inkscape {
101 namespace UI {
104 /**
105 * @brief Default implementation of the clipboard manager
106 */
107 class ClipboardManagerImpl : public ClipboardManager {
108 public:
109 virtual void copy(SPDesktop *desktop);
110 virtual void copyPathParameter(Inkscape::LivePathEffect::PathParam *);
111 virtual bool paste(SPDesktop *desktop, bool in_place);
112 virtual bool pasteStyle(SPDesktop *desktop);
113 virtual bool pasteSize(SPDesktop *desktop, bool separately, bool apply_x, bool apply_y);
114 virtual bool pastePathEffect(SPDesktop *desktop);
115 virtual Glib::ustring getPathParameter(SPDesktop* desktop);
116 virtual Glib::ustring getShapeOrTextObjectId(SPDesktop *desktop);
117 virtual const gchar *getFirstObjectID();
119 ClipboardManagerImpl();
120 ~ClipboardManagerImpl();
122 private:
123 void _copySelection(Inkscape::Selection *);
124 void _copyUsedDefs(SPItem *);
125 void _copyGradient(SPGradient *);
126 void _copyPattern(SPPattern *);
127 void _copyTextPath(SPTextPath *);
128 Inkscape::XML::Node *_copyNode(Inkscape::XML::Node *, Inkscape::XML::Document *, Inkscape::XML::Node *);
130 void _pasteDocument(SPDesktop *desktop, SPDocument *clipdoc, bool in_place);
131 void _pasteDefs(SPDesktop *desktop, SPDocument *clipdoc);
132 bool _pasteImage(SPDocument *doc);
133 bool _pasteText(SPDesktop *desktop);
134 SPCSSAttr *_parseColor(const Glib::ustring &);
135 void _applyPathEffect(SPItem *, gchar const *);
136 SPDocument *_retrieveClipboard(Glib::ustring = "");
138 // clipboard callbacks
139 void _onGet(Gtk::SelectionData &, guint);
140 void _onClear();
142 // various helpers
143 void _createInternalClipboard();
144 void _discardInternalClipboard();
145 Inkscape::XML::Node *_createClipNode();
146 Geom::Scale _getScale(SPDesktop *desktop, Geom::Point const &min, Geom::Point const &max, Geom::Rect const &obj_rect, bool apply_x, bool apply_y);
147 Glib::ustring _getBestTarget();
148 void _setClipboardTargets();
149 void _setClipboardColor(guint32);
150 void _userWarn(SPDesktop *, char const *);
152 void _inkscape_wait_for_targets(std::list<Glib::ustring> &);
154 // private properites
155 SPDocument *_clipboardSPDoc; ///< Document that stores the clipboard until someone requests it
156 Inkscape::XML::Node *_defs; ///< Reference to the clipboard document's defs node
157 Inkscape::XML::Node *_root; ///< Reference to the clipboard's root node
158 Inkscape::XML::Node *_clipnode; ///< The node that holds extra information
159 Inkscape::XML::Document *_doc; ///< Reference to the clipboard's Inkscape::XML::Document
161 // we need a way to copy plain text AND remember its style;
162 // the standard _clipnode is only available in an SVG tree, hence this special storage
163 SPCSSAttr *_text_style; ///< Style copied along with plain text fragment
165 Glib::RefPtr<Gtk::Clipboard> _clipboard; ///< Handle to the system wide clipboard - for convenience
166 std::list<Glib::ustring> _preferred_targets; ///< List of supported clipboard targets
167 };
170 ClipboardManagerImpl::ClipboardManagerImpl()
171 : _clipboardSPDoc(NULL),
172 _defs(NULL),
173 _root(NULL),
174 _clipnode(NULL),
175 _doc(NULL),
176 _text_style(NULL),
177 _clipboard( Gtk::Clipboard::get() )
178 {
179 // push supported clipboard targets, in order of preference
180 _preferred_targets.push_back("image/x-inkscape-svg");
181 _preferred_targets.push_back("image/svg+xml");
182 _preferred_targets.push_back("image/svg+xml-compressed");
183 #ifdef WIN32
184 _preferred_targets.push_back(CLIPBOARD_WIN32_EMF_MIME);
185 #endif
186 _preferred_targets.push_back("application/pdf");
187 _preferred_targets.push_back("image/x-adobe-illustrator");
188 }
191 ClipboardManagerImpl::~ClipboardManagerImpl() {}
194 /**
195 * @brief Copy selection contents to the clipboard
196 */
197 void ClipboardManagerImpl::copy(SPDesktop *desktop)
198 {
199 if ( desktop == NULL ) {
200 return;
201 }
202 Inkscape::Selection *selection = sp_desktop_selection(desktop);
204 // Special case for when the gradient dragger is active - copies gradient color
205 if (desktop->event_context->get_drag()) {
206 GrDrag *drag = desktop->event_context->get_drag();
207 if (drag->hasSelection()) {
208 guint32 col = drag->getColor();
210 // set the color as clipboard content (text in RRGGBBAA format)
211 _setClipboardColor(col);
213 // create a style with this color on fill and opacity in master opacity, so it can be
214 // pasted on other stops or objects
215 if (_text_style) {
216 sp_repr_css_attr_unref(_text_style);
217 _text_style = NULL;
218 }
219 _text_style = sp_repr_css_attr_new();
220 // print and set properties
221 gchar color_str[16];
222 g_snprintf(color_str, 16, "#%06x", col >> 8);
223 sp_repr_css_set_property(_text_style, "fill", color_str);
224 float opacity = SP_RGBA32_A_F(col);
225 if (opacity > 1.0) {
226 opacity = 1.0; // safeguard
227 }
228 Inkscape::CSSOStringStream opcss;
229 opcss << opacity;
230 sp_repr_css_set_property(_text_style, "opacity", opcss.str().data());
232 _discardInternalClipboard();
233 return;
234 }
235 }
237 // Special case for when the color picker ("dropper") is active - copies color under cursor
238 if (tools_isactive(desktop, TOOLS_DROPPER)) {
239 _setClipboardColor(sp_dropper_context_get_color(desktop->event_context));
240 _discardInternalClipboard();
241 return;
242 }
244 // Special case for when the text tool is active - if some text is selected, copy plain text,
245 // not the object that holds it; also copy the style at cursor into
246 if (tools_isactive(desktop, TOOLS_TEXT)) {
247 _discardInternalClipboard();
248 Glib::ustring selected_text = sp_text_get_selected_text(desktop->event_context);
249 if (!selected_text.empty()) {
250 _clipboard->set_text(selected_text);
251 }
252 if (_text_style) {
253 sp_repr_css_attr_unref(_text_style);
254 _text_style = NULL;
255 }
256 _text_style = sp_text_get_style_at_cursor(desktop->event_context);
257 return;
258 }
260 if (selection->isEmpty()) { // check whether something is selected
261 _userWarn(desktop, _("Nothing was copied."));
262 return;
263 }
264 _discardInternalClipboard();
266 _createInternalClipboard(); // construct a new clipboard document
267 _copySelection(selection); // copy all items in the selection to the internal clipboard
268 fit_canvas_to_drawing(_clipboardSPDoc);
270 _setClipboardTargets();
271 }
274 /**
275 * @brief Copy a Live Path Effect path parameter to the clipboard
276 * @param pp The path parameter to store in the clipboard
277 */
278 void ClipboardManagerImpl::copyPathParameter(Inkscape::LivePathEffect::PathParam *pp)
279 {
280 if ( pp == NULL ) {
281 return;
282 }
283 gchar *svgd = sp_svg_write_path( pp->get_pathvector() );
284 if ( svgd == NULL || *svgd == '\0' ) {
285 return;
286 }
288 _discardInternalClipboard();
289 _createInternalClipboard();
291 Inkscape::XML::Node *pathnode = _doc->createElement("svg:path");
292 pathnode->setAttribute("d", svgd);
293 g_free(svgd);
294 _root->appendChild(pathnode);
295 Inkscape::GC::release(pathnode);
297 fit_canvas_to_drawing(_clipboardSPDoc);
298 _setClipboardTargets();
299 }
301 /**
302 * @brief Paste from the system clipboard into the active desktop
303 * @param in_place Whether to put the contents where they were when copied
304 */
305 bool ClipboardManagerImpl::paste(SPDesktop *desktop, bool in_place)
306 {
307 // do any checking whether we really are able to paste before requesting the contents
308 if ( desktop == NULL ) {
309 return false;
310 }
311 if ( Inkscape::have_viable_layer(desktop, desktop->messageStack()) == false ) {
312 return false;
313 }
315 Glib::ustring target = _getBestTarget();
317 // Special cases of clipboard content handling go here
318 // Note that target priority is determined in _getBestTarget.
319 // TODO: Handle x-special/gnome-copied-files and text/uri-list to support pasting files
321 // if there is an image on the clipboard, paste it
322 if ( target == CLIPBOARD_GDK_PIXBUF_TARGET ) {
323 return _pasteImage(desktop->doc());
324 }
325 // if there's only text, paste it into a selected text object or create a new one
326 if ( target == CLIPBOARD_TEXT_TARGET ) {
327 return _pasteText(desktop);
328 }
330 // otherwise, use the import extensions
331 SPDocument *tempdoc = _retrieveClipboard(target);
332 if ( tempdoc == NULL ) {
333 _userWarn(desktop, _("Nothing on the clipboard."));
334 return false;
335 }
337 _pasteDocument(desktop, tempdoc, in_place);
338 sp_document_unref(tempdoc);
340 return true;
341 }
343 /**
344 * @brief Returns the id of the first visible copied object
345 */
346 const gchar *ClipboardManagerImpl::getFirstObjectID()
347 {
348 SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg");
349 if ( tempdoc == NULL ) {
350 return NULL;
351 }
353 Inkscape::XML::Node
354 *root = sp_document_repr_root(tempdoc);
356 if (!root) {
357 return NULL;
358 }
360 Inkscape::XML::Node *ch = sp_repr_children(root);
361 while (ch != NULL &&
362 strcmp(ch->name(), "svg:g") &&
363 strcmp(ch->name(), "svg:path") &&
364 strcmp(ch->name(), "svg:use") &&
365 strcmp(ch->name(), "svg:text") &&
366 strcmp(ch->name(), "svg:image") &&
367 strcmp(ch->name(), "svg:rect")
368 ) {
369 ch = ch->next();
370 }
372 if (ch) {
373 return ch->attribute("id");
374 }
376 return NULL;
377 }
380 /**
381 * @brief Implements the Paste Style action
382 */
383 bool ClipboardManagerImpl::pasteStyle(SPDesktop *desktop)
384 {
385 if (desktop == NULL) {
386 return false;
387 }
389 // check whether something is selected
390 Inkscape::Selection *selection = sp_desktop_selection(desktop);
391 if (selection->isEmpty()) {
392 _userWarn(desktop, _("Select <b>object(s)</b> to paste style to."));
393 return false;
394 }
396 SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg");
397 if ( tempdoc == NULL ) {
398 // no document, but we can try _text_style
399 if (_text_style) {
400 sp_desktop_set_style(desktop, _text_style);
401 return true;
402 } else {
403 _userWarn(desktop, _("No style on the clipboard."));
404 return false;
405 }
406 }
408 Inkscape::XML::Node
409 *root = sp_document_repr_root(tempdoc),
410 *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1);
412 bool pasted = false;
414 if (clipnode) {
415 _pasteDefs(desktop, tempdoc);
416 SPCSSAttr *style = sp_repr_css_attr(clipnode, "style");
417 sp_desktop_set_style(desktop, style);
418 pasted = true;
419 }
420 else {
421 _userWarn(desktop, _("No style on the clipboard."));
422 }
424 sp_document_unref(tempdoc);
425 return pasted;
426 }
429 /**
430 * @brief Resize the selection or each object in the selection to match the clipboard's size
431 * @param separately Whether to scale each object in the selection separately
432 * @param apply_x Whether to scale the width of objects / selection
433 * @param apply_y Whether to scale the height of objects / selection
434 */
435 bool ClipboardManagerImpl::pasteSize(SPDesktop *desktop, bool separately, bool apply_x, bool apply_y)
436 {
437 if (!apply_x && !apply_y) {
438 return false; // pointless parameters
439 }
441 if ( desktop == NULL ) {
442 return false;
443 }
444 Inkscape::Selection *selection = sp_desktop_selection(desktop);
445 if (selection->isEmpty()) {
446 _userWarn(desktop, _("Select <b>object(s)</b> to paste size to."));
447 return false;
448 }
450 // FIXME: actually, this should accept arbitrary documents
451 SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg");
452 if ( tempdoc == NULL ) {
453 _userWarn(desktop, _("No size on the clipboard."));
454 return false;
455 }
457 // retrieve size ifomration from the clipboard
458 Inkscape::XML::Node *root = sp_document_repr_root(tempdoc);
459 Inkscape::XML::Node *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1);
460 bool pasted = false;
461 if (clipnode) {
462 Geom::Point min, max;
463 sp_repr_get_point(clipnode, "min", &min);
464 sp_repr_get_point(clipnode, "max", &max);
466 // resize each object in the selection
467 if (separately) {
468 for (GSList *i = const_cast<GSList*>(selection->itemList()) ; i ; i = i->next) {
469 SPItem *item = SP_ITEM(i->data);
470 Geom::OptRect obj_size = sp_item_bbox_desktop(item);
471 if ( !obj_size ) {
472 continue;
473 }
474 sp_item_scale_rel(item, _getScale(desktop, min, max, *obj_size, apply_x, apply_y));
475 }
476 }
477 // resize the selection as a whole
478 else {
479 Geom::OptRect sel_size = selection->bounds();
480 if ( sel_size ) {
481 sp_selection_scale_relative(selection, sel_size->midpoint(),
482 _getScale(desktop, min, max, *sel_size, apply_x, apply_y));
483 }
484 }
485 pasted = true;
486 }
487 sp_document_unref(tempdoc);
488 return pasted;
489 }
492 /**
493 * @brief Applies a path effect from the clipboard to the selected path
494 */
495 bool ClipboardManagerImpl::pastePathEffect(SPDesktop *desktop)
496 {
497 /** @todo FIXME: pastePathEffect crashes when moving the path with the applied effect,
498 segfaulting in fork_private_if_necessary(). */
500 if ( desktop == NULL ) {
501 return false;
502 }
504 Inkscape::Selection *selection = sp_desktop_selection(desktop);
505 if (selection && selection->isEmpty()) {
506 _userWarn(desktop, _("Select <b>object(s)</b> to paste live path effect to."));
507 return false;
508 }
510 SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg");
511 if ( tempdoc ) {
512 Inkscape::XML::Node *root = sp_document_repr_root(tempdoc);
513 Inkscape::XML::Node *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1);
514 if ( clipnode ) {
515 gchar const *effectstack = clipnode->attribute("inkscape:path-effect");
516 if ( effectstack ) {
517 _pasteDefs(desktop, tempdoc);
518 // make sure all selected items are converted to paths first (i.e. rectangles)
519 sp_selected_to_lpeitems(desktop);
520 for (GSList *itemptr = const_cast<GSList *>(selection->itemList()) ; itemptr ; itemptr = itemptr->next) {
521 SPItem *item = reinterpret_cast<SPItem*>(itemptr->data);
522 _applyPathEffect(item, effectstack);
523 }
525 return true;
526 }
527 }
528 }
530 // no_effect:
531 _userWarn(desktop, _("No effect on the clipboard."));
532 return false;
533 }
536 /**
537 * @brief Get LPE path data from the clipboard
538 * @return The retrieved path data (contents of the d attribute), or "" if no path was found
539 */
540 Glib::ustring ClipboardManagerImpl::getPathParameter(SPDesktop* desktop)
541 {
542 SPDocument *tempdoc = _retrieveClipboard(); // any target will do here
543 if ( tempdoc == NULL ) {
544 _userWarn(desktop, _("Nothing on the clipboard."));
545 return "";
546 }
547 Inkscape::XML::Node
548 *root = sp_document_repr_root(tempdoc),
549 *path = sp_repr_lookup_name(root, "svg:path", -1); // unlimited search depth
550 if ( path == NULL ) {
551 _userWarn(desktop, _("Clipboard does not contain a path."));
552 sp_document_unref(tempdoc);
553 return "";
554 }
555 gchar const *svgd = path->attribute("d");
556 return svgd;
557 }
560 /**
561 * @brief Get object id of a shape or text item from the clipboard
562 * @return The retrieved id string (contents of the id attribute), or "" if no shape or text item was found
563 */
564 Glib::ustring ClipboardManagerImpl::getShapeOrTextObjectId(SPDesktop *desktop)
565 {
566 SPDocument *tempdoc = _retrieveClipboard(); // any target will do here
567 if ( tempdoc == NULL ) {
568 _userWarn(desktop, _("Nothing on the clipboard."));
569 return "";
570 }
571 Inkscape::XML::Node *root = sp_document_repr_root(tempdoc);
573 Inkscape::XML::Node *repr = sp_repr_lookup_name(root, "svg:path", -1); // unlimited search depth
574 if ( repr == NULL ) {
575 repr = sp_repr_lookup_name(root, "svg:text", -1);
576 }
578 if ( repr == NULL ) {
579 _userWarn(desktop, _("Clipboard does not contain a path."));
580 sp_document_unref(tempdoc);
581 return "";
582 }
583 gchar const *svgd = repr->attribute("id");
584 return svgd;
585 }
588 /**
589 * @brief Iterate over a list of items and copy them to the clipboard.
590 */
591 void ClipboardManagerImpl::_copySelection(Inkscape::Selection *selection)
592 {
593 GSList const *items = selection->itemList();
594 // copy the defs used by all items
595 for (GSList *i = const_cast<GSList *>(items) ; i != NULL ; i = i->next) {
596 _copyUsedDefs(SP_ITEM (i->data));
597 }
599 // copy the representation of the items
600 GSList *sorted_items = g_slist_copy(const_cast<GSList *>(items));
601 sorted_items = g_slist_sort(sorted_items, (GCompareFunc) sp_object_compare_position);
603 for (GSList *i = sorted_items ; i ; i = i->next) {
604 if (!SP_IS_ITEM(i->data)) {
605 continue;
606 }
607 Inkscape::XML::Node *obj = SP_OBJECT_REPR(i->data);
608 Inkscape::XML::Node *obj_copy = _copyNode(obj, _doc, _root);
610 // copy complete inherited style
611 SPCSSAttr *css = sp_repr_css_attr_inherited(obj, "style");
612 sp_repr_css_set(obj_copy, css, "style");
613 sp_repr_css_attr_unref(css);
615 // write the complete accumulated transform passed to us
616 // (we're dealing with unattached representations, so we write to their attributes
617 // instead of using sp_item_set_transform)
618 gchar *transform_str = sp_svg_transform_write(sp_item_i2doc_affine(SP_ITEM(i->data)));
619 obj_copy->setAttribute("transform", transform_str);
620 g_free(transform_str);
621 }
623 // copy style for Paste Style action
624 if (sorted_items) {
625 if (SP_IS_ITEM(sorted_items->data)) {
626 SPCSSAttr *style = take_style_from_item((SPItem *) sorted_items->data);
627 sp_repr_css_set(_clipnode, style, "style");
628 sp_repr_css_attr_unref(style);
629 }
631 // copy path effect from the first path
632 if (SP_IS_OBJECT(sorted_items->data)) {
633 gchar const *effect = SP_OBJECT_REPR(sorted_items->data)->attribute("inkscape:path-effect");
634 if (effect) {
635 _clipnode->setAttribute("inkscape:path-effect", effect);
636 }
637 }
638 }
640 Geom::OptRect size = selection->bounds();
641 if (size) {
642 sp_repr_set_point(_clipnode, "min", size->min());
643 sp_repr_set_point(_clipnode, "max", size->max());
644 }
646 g_slist_free(sorted_items);
647 }
650 /**
651 * @brief Recursively copy all the definitions used by a given item to the clipboard defs
652 */
653 void ClipboardManagerImpl::_copyUsedDefs(SPItem *item)
654 {
655 // copy fill and stroke styles (patterns and gradients)
656 SPStyle *style = SP_OBJECT_STYLE(item);
658 if (style && (style->fill.isPaintserver())) {
659 SPObject *server = SP_OBJECT_STYLE_FILL_SERVER(item);
660 if (SP_IS_LINEARGRADIENT(server) || SP_IS_RADIALGRADIENT(server)) {
661 _copyGradient(SP_GRADIENT(server));
662 }
663 if (SP_IS_PATTERN(server)) {
664 _copyPattern(SP_PATTERN(server));
665 }
666 }
667 if (style && (style->stroke.isPaintserver())) {
668 SPObject *server = SP_OBJECT_STYLE_STROKE_SERVER(item);
669 if (SP_IS_LINEARGRADIENT(server) || SP_IS_RADIALGRADIENT(server)) {
670 _copyGradient(SP_GRADIENT(server));
671 }
672 if (SP_IS_PATTERN(server)) {
673 _copyPattern(SP_PATTERN(server));
674 }
675 }
677 // For shapes, copy all of the shape's markers
678 if (SP_IS_SHAPE(item)) {
679 SPShape *shape = SP_SHAPE (item);
680 for (int i = 0 ; i < SP_MARKER_LOC_QTY ; i++) {
681 if (shape->marker[i]) {
682 _copyNode(SP_OBJECT_REPR(SP_OBJECT(shape->marker[i])), _doc, _defs);
683 }
684 }
685 }
686 // For lpe items, copy lpe stack if applicable
687 if (SP_IS_LPE_ITEM(item)) {
688 SPLPEItem *lpeitem = SP_LPE_ITEM (item);
689 if (sp_lpe_item_has_path_effect(lpeitem)) {
690 for (PathEffectList::iterator it = lpeitem->path_effect_list->begin(); it != lpeitem->path_effect_list->end(); ++it)
691 {
692 LivePathEffectObject *lpeobj = (*it)->lpeobject;
693 if (lpeobj) {
694 _copyNode(SP_OBJECT_REPR(SP_OBJECT(lpeobj)), _doc, _defs);
695 }
696 }
697 }
698 }
699 // For 3D boxes, copy perspectives
700 if (SP_IS_BOX3D(item)) {
701 _copyNode(SP_OBJECT_REPR(SP_OBJECT(box3d_get_perspective(SP_BOX3D(item)))), _doc, _defs);
702 }
703 // Copy text paths
704 if (SP_IS_TEXT_TEXTPATH(item)) {
705 _copyTextPath(SP_TEXTPATH(sp_object_first_child(SP_OBJECT(item))));
706 }
707 // Copy clipping objects
708 if (item->clip_ref->getObject()) {
709 _copyNode(SP_OBJECT_REPR(item->clip_ref->getObject()), _doc, _defs);
710 }
711 // Copy mask objects
712 if (item->mask_ref->getObject()) {
713 SPObject *mask = item->mask_ref->getObject();
714 _copyNode(SP_OBJECT_REPR(mask), _doc, _defs);
715 // recurse into the mask for its gradients etc.
716 for (SPObject *o = SP_OBJECT(mask)->children ; o != NULL ; o = o->next) {
717 if (SP_IS_ITEM(o)) {
718 _copyUsedDefs(SP_ITEM(o));
719 }
720 }
721 }
722 // Copy filters
723 if (style->getFilter()) {
724 SPObject *filter = style->getFilter();
725 if (SP_IS_FILTER(filter)) {
726 _copyNode(SP_OBJECT_REPR(filter), _doc, _defs);
727 }
728 }
730 // recurse
731 for (SPObject *o = SP_OBJECT(item)->children ; o != NULL ; o = o->next) {
732 if (SP_IS_ITEM(o)) {
733 _copyUsedDefs(SP_ITEM(o));
734 }
735 }
736 }
739 /**
740 * @brief Copy a single gradient to the clipboard's defs element
741 */
742 void ClipboardManagerImpl::_copyGradient(SPGradient *gradient)
743 {
744 while (gradient) {
745 // climb up the refs, copying each one in the chain
746 _copyNode(SP_OBJECT_REPR(gradient), _doc, _defs);
747 gradient = gradient->ref->getObject();
748 }
749 }
752 /**
753 * @brief Copy a single pattern to the clipboard document's defs element
754 */
755 void ClipboardManagerImpl::_copyPattern(SPPattern *pattern)
756 {
757 // climb up the references, copying each one in the chain
758 while (pattern) {
759 _copyNode(SP_OBJECT_REPR(pattern), _doc, _defs);
761 // items in the pattern may also use gradients and other patterns, so recurse
762 for (SPObject *child = sp_object_first_child(SP_OBJECT(pattern)) ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
763 if (!SP_IS_ITEM (child)) {
764 continue;
765 }
766 _copyUsedDefs(SP_ITEM(child));
767 }
768 pattern = pattern->ref->getObject();
769 }
770 }
773 /**
774 * @brief Copy a text path to the clipboard's defs element
775 */
776 void ClipboardManagerImpl::_copyTextPath(SPTextPath *tp)
777 {
778 SPItem *path = sp_textpath_get_path_item(tp);
779 if (!path) {
780 return;
781 }
782 Inkscape::XML::Node *path_node = SP_OBJECT_REPR(path);
784 // Do not copy the text path to defs if it's already copied
785 if (sp_repr_lookup_child(_root, "id", path_node->attribute("id"))) {
786 return;
787 }
788 _copyNode(path_node, _doc, _defs);
789 }
792 /**
793 * @brief Copy a single XML node from one document to another
794 * @param node The node to be copied
795 * @param target_doc The document to which the node is to be copied
796 * @param parent The node in the target document which will become the parent of the copied node
797 * @return Pointer to the copied node
798 */
799 Inkscape::XML::Node *ClipboardManagerImpl::_copyNode(Inkscape::XML::Node *node, Inkscape::XML::Document *target_doc, Inkscape::XML::Node *parent)
800 {
801 Inkscape::XML::Node *dup = node->duplicate(target_doc);
802 parent->appendChild(dup);
803 Inkscape::GC::release(dup);
804 return dup;
805 }
808 /**
809 * @brief Paste the contents of a document into the active desktop
810 * @param clipdoc The document to paste
811 * @param in_place Whether to paste the selection where it was when copied
812 * @pre @c clipdoc is not empty and items can be added to the current layer
813 */
814 void ClipboardManagerImpl::_pasteDocument(SPDesktop *desktop, SPDocument *clipdoc, bool in_place)
815 {
816 SPDocument *target_document = sp_desktop_document(desktop);
817 Inkscape::XML::Node
818 *root = sp_document_repr_root(clipdoc),
819 *target_parent = SP_OBJECT_REPR(desktop->currentLayer());
820 Inkscape::XML::Document *target_xmldoc = sp_document_repr_doc(target_document);
822 // copy definitions
823 _pasteDefs(desktop, clipdoc);
825 // copy objects
826 GSList *pasted_objects = NULL;
827 for (Inkscape::XML::Node *obj = root->firstChild() ; obj ; obj = obj->next()) {
828 // Don't copy metadata, defs, named views and internal clipboard contents to the document
829 if (!strcmp(obj->name(), "svg:defs")) {
830 continue;
831 }
832 if (!strcmp(obj->name(), "svg:metadata")) {
833 continue;
834 }
835 if (!strcmp(obj->name(), "sodipodi:namedview")) {
836 continue;
837 }
838 if (!strcmp(obj->name(), "inkscape:clipboard")) {
839 continue;
840 }
841 Inkscape::XML::Node *obj_copy = _copyNode(obj, target_xmldoc, target_parent);
842 pasted_objects = g_slist_prepend(pasted_objects, (gpointer) obj_copy);
843 }
845 // Change the selection to the freshly pasted objects
846 Inkscape::Selection *selection = sp_desktop_selection(desktop);
847 selection->setReprList(pasted_objects);
849 // invers apply parent transform
850 Geom::Matrix doc2parent = sp_item_i2doc_affine(SP_ITEM(desktop->currentLayer())).inverse();
851 sp_selection_apply_affine(selection, desktop->dt2doc() * doc2parent * desktop->doc2dt(), true, false);
853 // Update (among other things) all curves in paths, for bounds() to work
854 sp_document_ensure_up_to_date(target_document);
856 // move selection either to original position (in_place) or to mouse pointer
857 Geom::OptRect sel_bbox = selection->bounds();
858 if (sel_bbox) {
859 // get offset of selection to original position of copied elements
860 Geom::Point pos_original;
861 Inkscape::XML::Node *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1);
862 if (clipnode) {
863 Geom::Point min, max;
864 sp_repr_get_point(clipnode, "min", &min);
865 sp_repr_get_point(clipnode, "max", &max);
866 pos_original = Geom::Point(min[Geom::X], max[Geom::Y]);
867 }
868 Geom::Point offset = pos_original - sel_bbox->corner(3);
870 if (!in_place) {
871 SnapManager &m = desktop->namedview->snap_manager;
872 m.setup(desktop);
873 sp_event_context_discard_delayed_snap_event(desktop->event_context);
875 // get offset from mouse pointer to bbox center, snap to grid if enabled
876 Geom::Point mouse_offset = desktop->point() - sel_bbox->midpoint();
877 offset = m.multipleOfGridPitch(mouse_offset - offset, sel_bbox->midpoint() + offset) + offset;
878 }
880 sp_selection_move_relative(selection, offset);
881 }
883 g_slist_free(pasted_objects);
884 }
887 /**
888 * @brief Paste SVG defs from the document retrieved from the clipboard into the active document
889 * @param clipdoc The document to paste
890 * @pre @c clipdoc != NULL and pasting into the active document is possible
891 */
892 void ClipboardManagerImpl::_pasteDefs(SPDesktop *desktop, SPDocument *clipdoc)
893 {
894 // boilerplate vars copied from _pasteDocument
895 SPDocument *target_document = sp_desktop_document(desktop);
896 Inkscape::XML::Node
897 *root = sp_document_repr_root(clipdoc),
898 *defs = sp_repr_lookup_name(root, "svg:defs", 1),
899 *target_defs = SP_OBJECT_REPR(SP_DOCUMENT_DEFS(target_document));
900 Inkscape::XML::Document *target_xmldoc = sp_document_repr_doc(target_document);
902 prevent_id_clashes(clipdoc, target_document);
904 for (Inkscape::XML::Node *def = defs->firstChild() ; def ; def = def->next()) {
905 _copyNode(def, target_xmldoc, target_defs);
906 }
907 }
910 /**
911 * @brief Retrieve a bitmap image from the clipboard and paste it into the active document
912 */
913 bool ClipboardManagerImpl::_pasteImage(SPDocument *doc)
914 {
915 if ( doc == NULL ) {
916 return false;
917 }
919 // retrieve image data
920 Glib::RefPtr<Gdk::Pixbuf> img = _clipboard->wait_for_image();
921 if (!img) {
922 return false;
923 }
925 // TODO unify with interface.cpp's sp_ui_drag_data_received()
926 // AARGH stupid
927 Inkscape::Extension::DB::InputList o;
928 Inkscape::Extension::db.get_input_list(o);
929 Inkscape::Extension::DB::InputList::const_iterator i = o.begin();
930 while (i != o.end() && strcmp( (*i)->get_mimetype(), "image/png" ) != 0) {
931 ++i;
932 }
933 Inkscape::Extension::Extension *png = *i;
934 bool save = (strcmp(png->get_param_optiongroup("link"), "embed") == 0);
935 png->set_param_optiongroup("link", "embed");
936 png->set_gui(false);
938 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-import", NULL );
939 img->save(filename, "png");
940 file_import(doc, filename, png);
941 g_free(filename);
943 png->set_param_optiongroup("link", save ? "embed" : "link");
944 png->set_gui(true);
946 return true;
947 }
949 /**
950 * @brief Paste text into the selected text object or create a new one to hold it
951 */
952 bool ClipboardManagerImpl::_pasteText(SPDesktop *desktop)
953 {
954 if ( desktop == NULL ) {
955 return false;
956 }
958 // if the text editing tool is active, paste the text into the active text object
959 if (tools_isactive(desktop, TOOLS_TEXT)) {
960 return sp_text_paste_inline(desktop->event_context);
961 }
963 // try to parse the text as a color and, if successful, apply it as the current style
964 SPCSSAttr *css = _parseColor(_clipboard->wait_for_text());
965 if (css) {
966 sp_desktop_set_style(desktop, css);
967 return true;
968 }
970 return false;
971 }
974 /**
975 * @brief Attempt to parse the passed string as a hexadecimal RGB or RGBA color
976 * @param text The Glib::ustring to parse
977 * @return New CSS style representation if the parsing was successful, NULL otherwise
978 */
979 SPCSSAttr *ClipboardManagerImpl::_parseColor(const Glib::ustring &text)
980 {
981 // TODO reuse existing code instead of replicating here.
982 Glib::ustring::size_type len = text.bytes();
983 char *str = const_cast<char *>(text.data());
984 bool attempt_alpha = false;
985 if ( !str || ( *str == '\0' ) ) {
986 return NULL; // this is OK due to boolean short-circuit
987 }
989 // those conditionals guard against parsing e.g. the string "fab" as "fab000"
990 // (incomplete color) and "45fab71" as "45fab710" (incomplete alpha)
991 if ( *str == '#' ) {
992 if ( len < 7 ) {
993 return NULL;
994 }
995 if ( len >= 9 ) {
996 attempt_alpha = true;
997 }
998 } else {
999 if ( len < 6 ) {
1000 return NULL;
1001 }
1002 if ( len >= 8 ) {
1003 attempt_alpha = true;
1004 }
1005 }
1007 unsigned int color = 0, alpha = 0xff;
1009 // skip a leading #, if present
1010 if ( *str == '#' ) {
1011 ++str;
1012 }
1014 // try to parse first 6 digits
1015 int res = sscanf(str, "%6x", &color);
1016 if ( res && ( res != EOF ) ) {
1017 if (attempt_alpha) {// try to parse alpha if there's enough characters
1018 sscanf(str + 6, "%2x", &alpha);
1019 if ( !res || res == EOF ) {
1020 alpha = 0xff;
1021 }
1022 }
1024 SPCSSAttr *color_css = sp_repr_css_attr_new();
1026 // print and set properties
1027 gchar color_str[16];
1028 g_snprintf(color_str, 16, "#%06x", color);
1029 sp_repr_css_set_property(color_css, "fill", color_str);
1031 float opacity = static_cast<float>(alpha)/static_cast<float>(0xff);
1032 if (opacity > 1.0) {
1033 opacity = 1.0; // safeguard
1034 }
1035 Inkscape::CSSOStringStream opcss;
1036 opcss << opacity;
1037 sp_repr_css_set_property(color_css, "fill-opacity", opcss.str().data());
1038 return color_css;
1039 }
1040 return NULL;
1041 }
1044 /**
1045 * @brief Applies a pasted path effect to a given item
1046 */
1047 void ClipboardManagerImpl::_applyPathEffect(SPItem *item, gchar const *effectstack)
1048 {
1049 if ( item == NULL ) {
1050 return;
1051 }
1052 if ( SP_IS_RECT(item) ) {
1053 return;
1054 }
1056 if (SP_IS_LPE_ITEM(item))
1057 {
1058 SPLPEItem *lpeitem = SP_LPE_ITEM(item);
1059 // for each effect in the stack, check if we need to fork it before adding it to the item
1060 std::istringstream iss(effectstack);
1061 std::string href;
1062 while (std::getline(iss, href, ';'))
1063 {
1064 SPObject *obj = sp_uri_reference_resolve(_clipboardSPDoc, href.c_str());
1065 if (!obj) {
1066 return;
1067 }
1068 // if the effectstack is not used by anyone, we might as well take it
1069 LivePathEffectObject *lpeobj = LIVEPATHEFFECT(obj)->fork_private_if_necessary(1);
1070 sp_lpe_item_add_path_effect(lpeitem, lpeobj);
1071 }
1072 }
1073 }
1076 /**
1077 * @brief Retrieve the clipboard contents as a document
1078 * @return Clipboard contents converted to SPDocument, or NULL if no suitable content was present
1079 */
1080 SPDocument *ClipboardManagerImpl::_retrieveClipboard(Glib::ustring required_target)
1081 {
1082 Glib::ustring best_target;
1083 if ( required_target == "" ) {
1084 best_target = _getBestTarget();
1085 } else {
1086 best_target = required_target;
1087 }
1089 if ( best_target == "" ) {
1090 return NULL;
1091 }
1093 // FIXME: Temporary hack until we add memory input.
1094 // Save the clipboard contents to some file, then read it
1095 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-import", NULL );
1097 bool file_saved = false;
1098 Glib::ustring target = best_target;
1100 #ifdef WIN32
1101 if (best_target == CLIPBOARD_WIN32_EMF_TARGET)
1102 { // Try to save clipboard data as en emf file (using win32 api)
1103 if (OpenClipboard(NULL)) {
1104 HGLOBAL hglb = GetClipboardData(CF_ENHMETAFILE);
1105 if (hglb) {
1106 HENHMETAFILE hemf = CopyEnhMetaFile((HENHMETAFILE) hglb, filename);
1107 if (hemf) {
1108 file_saved = true;
1109 target = CLIPBOARD_WIN32_EMF_MIME;
1110 DeleteEnhMetaFile(hemf);
1111 }
1112 }
1113 CloseClipboard();
1114 }
1115 }
1116 #endif
1118 if (!file_saved) {
1119 if ( !_clipboard->wait_is_target_available(best_target) ) {
1120 return NULL;
1121 }
1123 // doing this synchronously makes better sense
1124 // TODO: use another method because this one is badly broken imo.
1125 // from documentation: "Returns: A SelectionData object, which will be invalid if retrieving the given target failed."
1126 // I don't know how to check whether an object is 'valid' or not, unusable if that's not possible...
1127 Gtk::SelectionData sel = _clipboard->wait_for_contents(best_target);
1128 target = sel.get_target(); // this can crash if the result was invalid of last function. No way to check for this :(
1130 // FIXME: Temporary hack until we add memory input.
1131 // Save the clipboard contents to some file, then read it
1132 g_file_set_contents(filename, (const gchar *) sel.get_data(), sel.get_length(), NULL);
1133 }
1135 // there is no specific plain SVG input extension, so if we can paste the Inkscape SVG format,
1136 // we use the image/svg+xml mimetype to look up the input extension
1137 if (target == "image/x-inkscape-svg") {
1138 target = "image/svg+xml";
1139 }
1141 Inkscape::Extension::DB::InputList inlist;
1142 Inkscape::Extension::db.get_input_list(inlist);
1143 Inkscape::Extension::DB::InputList::const_iterator in = inlist.begin();
1144 for (; in != inlist.end() && target != (*in)->get_mimetype() ; ++in) {
1145 };
1146 if ( in == inlist.end() ) {
1147 return NULL; // this shouldn't happen unless _getBestTarget returns something bogus
1148 }
1150 SPDocument *tempdoc = NULL;
1151 try {
1152 tempdoc = (*in)->open(filename);
1153 } catch (...) {
1154 }
1155 g_unlink(filename);
1156 g_free(filename);
1158 return tempdoc;
1159 }
1162 /**
1163 * @brief Callback called when some other application requests data from Inkscape
1164 *
1165 * Finds a suitable output extension to save the internal clipboard document,
1166 * then saves it to memory and sets the clipboard contents.
1167 */
1168 void ClipboardManagerImpl::_onGet(Gtk::SelectionData &sel, guint /*info*/)
1169 {
1170 g_assert( _clipboardSPDoc != NULL );
1172 Glib::ustring target = sel.get_target();
1173 if (target == "") {
1174 return; // this shouldn't happen
1175 }
1177 if (target == CLIPBOARD_TEXT_TARGET) {
1178 target = "image/x-inkscape-svg";
1179 }
1181 Inkscape::Extension::DB::OutputList outlist;
1182 Inkscape::Extension::db.get_output_list(outlist);
1183 Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin();
1184 for ( ; out != outlist.end() && target != (*out)->get_mimetype() ; ++out) {
1185 };
1186 if ( out == outlist.end() && target != "image/png") {
1187 return; // this also shouldn't happen
1188 }
1190 // FIXME: Temporary hack until we add support for memory output.
1191 // Save to a temporary file, read it back and then set the clipboard contents
1192 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-export", NULL );
1193 gsize len; gchar *data;
1195 try {
1196 if (out == outlist.end() && target == "image/png")
1197 {
1198 gdouble dpi = PX_PER_IN;
1199 guint32 bgcolor = 0x00000000;
1201 Geom::Point origin (SP_ROOT(_clipboardSPDoc->root)->x.computed, SP_ROOT(_clipboardSPDoc->root)->y.computed);
1202 Geom::Rect area = Geom::Rect(origin, origin + sp_document_dimensions(_clipboardSPDoc));
1204 unsigned long int width = (unsigned long int) (area.width() * dpi / PX_PER_IN + 0.5);
1205 unsigned long int height = (unsigned long int) (area.height() * dpi / PX_PER_IN + 0.5);
1207 // read from namedview
1208 Inkscape::XML::Node *nv = sp_repr_lookup_name (_clipboardSPDoc->rroot, "sodipodi:namedview");
1209 if (nv && nv->attribute("pagecolor")) {
1210 bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00);
1211 }
1212 if (nv && nv->attribute("inkscape:pageopacity")) {
1213 bgcolor |= SP_COLOR_F_TO_U(sp_repr_get_double_attribute (nv, "inkscape:pageopacity", 1.0));
1214 }
1216 sp_export_png_file(_clipboardSPDoc, filename, area, width, height, dpi, dpi, bgcolor, NULL, NULL, true, NULL);
1217 }
1218 else
1219 {
1220 if (!(*out)->loaded()) {
1221 // Need to load the extension.
1222 (*out)->set_state(Inkscape::Extension::Extension::STATE_LOADED);
1223 }
1224 (*out)->save(_clipboardSPDoc, filename);
1225 }
1226 g_file_get_contents(filename, &data, &len, NULL);
1228 sel.set(8, (guint8 const *) data, len);
1229 } catch (...) {
1230 }
1232 g_unlink(filename); // delete the temporary file
1233 g_free(filename);
1234 }
1237 /**
1238 * @brief Callback when someone else takes the clipboard
1239 *
1240 * When the clipboard owner changes, this callback clears the internal clipboard document
1241 * to reduce memory usage.
1242 */
1243 void ClipboardManagerImpl::_onClear()
1244 {
1245 // why is this called before _onGet???
1246 //_discardInternalClipboard();
1247 }
1250 /**
1251 * @brief Creates an internal clipboard document from scratch
1252 */
1253 void ClipboardManagerImpl::_createInternalClipboard()
1254 {
1255 if ( _clipboardSPDoc == NULL ) {
1256 _clipboardSPDoc = sp_document_new(NULL, false, true);
1257 //g_assert( _clipboardSPDoc != NULL );
1258 _defs = SP_OBJECT_REPR(SP_DOCUMENT_DEFS(_clipboardSPDoc));
1259 _doc = sp_document_repr_doc(_clipboardSPDoc);
1260 _root = sp_document_repr_root(_clipboardSPDoc);
1262 _clipnode = _doc->createElement("inkscape:clipboard");
1263 _root->appendChild(_clipnode);
1264 Inkscape::GC::release(_clipnode);
1266 // once we create a SVG document, style will be stored in it, so flush _text_style
1267 if (_text_style) {
1268 sp_repr_css_attr_unref(_text_style);
1269 _text_style = NULL;
1270 }
1271 }
1272 }
1275 /**
1276 * @brief Deletes the internal clipboard document
1277 */
1278 void ClipboardManagerImpl::_discardInternalClipboard()
1279 {
1280 if ( _clipboardSPDoc != NULL ) {
1281 sp_document_unref(_clipboardSPDoc);
1282 _clipboardSPDoc = NULL;
1283 _defs = NULL;
1284 _doc = NULL;
1285 _root = NULL;
1286 _clipnode = NULL;
1287 }
1288 }
1291 /**
1292 * @brief Get the scale to resize an item, based on the command and desktop state
1293 */
1294 Geom::Scale ClipboardManagerImpl::_getScale(SPDesktop *desktop, Geom::Point const &min, Geom::Point const &max, Geom::Rect const &obj_rect, bool apply_x, bool apply_y)
1295 {
1296 double scale_x = 1.0;
1297 double scale_y = 1.0;
1299 if (apply_x) {
1300 scale_x = (max[Geom::X] - min[Geom::X]) / obj_rect[Geom::X].extent();
1301 }
1302 if (apply_y) {
1303 scale_y = (max[Geom::Y] - min[Geom::Y]) / obj_rect[Geom::Y].extent();
1304 }
1305 // If the "lock aspect ratio" button is pressed and we paste only a single coordinate,
1306 // resize the second one by the same ratio too
1307 if (desktop->isToolboxButtonActive("lock")) {
1308 if (apply_x && !apply_y) {
1309 scale_y = scale_x;
1310 }
1311 if (apply_y && !apply_x) {
1312 scale_x = scale_y;
1313 }
1314 }
1316 return Geom::Scale(scale_x, scale_y);
1317 }
1320 /**
1321 * @brief Find the most suitable clipboard target
1322 */
1323 Glib::ustring ClipboardManagerImpl::_getBestTarget()
1324 {
1325 // GTKmm's wait_for_targets() is broken, see the comment in _inkscape_wait_for_targets()
1326 std::list<Glib::ustring> targets; // = _clipboard->wait_for_targets();
1327 _inkscape_wait_for_targets(targets);
1329 // clipboard target debugging snippet
1330 /*
1331 g_debug("Begin clipboard targets");
1332 for ( std::list<Glib::ustring>::iterator x = targets.begin() ; x != targets.end(); ++x )
1333 g_debug("Clipboard target: %s", (*x).data());
1334 g_debug("End clipboard targets\n");
1335 //*/
1337 for (std::list<Glib::ustring>::iterator i = _preferred_targets.begin() ;
1338 i != _preferred_targets.end() ; ++i)
1339 {
1340 if ( std::find(targets.begin(), targets.end(), *i) != targets.end() ) {
1341 return *i;
1342 }
1343 }
1344 #ifdef WIN32
1345 if (OpenClipboard(NULL))
1346 { // If both bitmap and metafile are present, pick the one that was exported first.
1347 UINT format = EnumClipboardFormats(0);
1348 while (format) {
1349 if (format == CF_ENHMETAFILE || format == CF_DIB || format == CF_BITMAP) {
1350 break;
1351 }
1352 format = EnumClipboardFormats(format);
1353 }
1354 CloseClipboard();
1356 if (format == CF_ENHMETAFILE) {
1357 return CLIPBOARD_WIN32_EMF_TARGET;
1358 }
1359 if (format == CF_DIB || format == CF_BITMAP) {
1360 return CLIPBOARD_GDK_PIXBUF_TARGET;
1361 }
1362 }
1364 if (IsClipboardFormatAvailable(CF_ENHMETAFILE)) {
1365 return CLIPBOARD_WIN32_EMF_TARGET;
1366 }
1367 #endif
1368 if (_clipboard->wait_is_image_available()) {
1369 return CLIPBOARD_GDK_PIXBUF_TARGET;
1370 }
1371 if (_clipboard->wait_is_text_available()) {
1372 return CLIPBOARD_TEXT_TARGET;
1373 }
1375 return "";
1376 }
1379 /**
1380 * @brief Set the clipboard targets to reflect the mimetypes Inkscape can output
1381 */
1382 void ClipboardManagerImpl::_setClipboardTargets()
1383 {
1384 Inkscape::Extension::DB::OutputList outlist;
1385 Inkscape::Extension::db.get_output_list(outlist);
1386 std::list<Gtk::TargetEntry> target_list;
1387 bool plaintextSet = false;
1388 for (Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin() ; out != outlist.end() ; ++out) {
1389 if ( !(*out)->deactivated() ) {
1390 Glib::ustring mime = (*out)->get_mimetype();
1391 if (mime != CLIPBOARD_TEXT_TARGET) {
1392 if ( !plaintextSet && (mime.find("svg") == Glib::ustring::npos) ) {
1393 target_list.push_back(Gtk::TargetEntry(CLIPBOARD_TEXT_TARGET));
1394 plaintextSet = true;
1395 }
1396 target_list.push_back(Gtk::TargetEntry(mime));
1397 }
1398 }
1399 }
1401 // Add PNG export explicitly since there is no extension for this...
1402 // On Windows, GTK will also present this as a CF_DIB/CF_BITMAP
1403 target_list.push_back(Gtk::TargetEntry( "image/png" ));
1405 _clipboard->set(target_list,
1406 sigc::mem_fun(*this, &ClipboardManagerImpl::_onGet),
1407 sigc::mem_fun(*this, &ClipboardManagerImpl::_onClear));
1409 #ifdef WIN32
1410 // If the "image/x-emf" target handled by the emf extension would be
1411 // presented as a CF_ENHMETAFILE automatically (just like an "image/bmp"
1412 // is presented as a CF_BITMAP) this code would not be needed.. ???
1413 // Or maybe there is some other way to achieve the same?
1415 // Note: Metafile is the only format that is rendered and stored in clipboard
1416 // on Copy, all other formats are rendered only when needed by a Paste command.
1418 // FIXME: This should at least be rewritten to use "delayed rendering".
1419 // If possible make it delayed rendering by using GTK API only.
1421 if (OpenClipboard(NULL)) {
1422 if ( _clipboardSPDoc != NULL ) {
1423 const Glib::ustring target = CLIPBOARD_WIN32_EMF_MIME;
1425 Inkscape::Extension::DB::OutputList outlist;
1426 Inkscape::Extension::db.get_output_list(outlist);
1427 Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin();
1428 for ( ; out != outlist.end() && target != (*out)->get_mimetype() ; ++out) {
1429 }
1430 if ( out != outlist.end() ) {
1431 // FIXME: Temporary hack until we add support for memory output.
1432 // Save to a temporary file, read it back and then set the clipboard contents
1433 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-export.emf", NULL );
1435 try {
1436 (*out)->save(_clipboardSPDoc, filename);
1437 HENHMETAFILE hemf = GetEnhMetaFileA(filename);
1438 if (hemf) {
1439 SetClipboardData(CF_ENHMETAFILE, hemf);
1440 DeleteEnhMetaFile(hemf);
1441 }
1442 } catch (...) {
1443 }
1444 g_unlink(filename); // delete the temporary file
1445 g_free(filename);
1446 }
1447 }
1448 CloseClipboard();
1449 }
1450 #endif
1451 }
1454 /**
1455 * @brief Set the string representation of a 32-bit RGBA color as the clipboard contents
1456 */
1457 void ClipboardManagerImpl::_setClipboardColor(guint32 color)
1458 {
1459 gchar colorstr[16];
1460 g_snprintf(colorstr, 16, "%08x", color);
1461 _clipboard->set_text(colorstr);
1462 }
1465 /**
1466 * @brief Put a notification on the mesage stack
1467 */
1468 void ClipboardManagerImpl::_userWarn(SPDesktop *desktop, char const *msg)
1469 {
1470 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, msg);
1471 }
1474 // GTKMM's clipboard::wait_for_targets is buggy and might return bogus, see
1475 //
1476 // https://bugs.launchpad.net/inkscape/+bug/296778
1477 // http://mail.gnome.org/archives/gtk-devel-list/2009-June/msg00062.html
1478 //
1479 // for details. Until this has been fixed upstream we will use our own implementation
1480 // of this method, as copied from /gtkmm-2.16.0/gtk/gtkmm/clipboard.cc.
1481 void ClipboardManagerImpl::_inkscape_wait_for_targets(std::list<Glib::ustring> &listTargets)
1482 {
1483 //Get a newly-allocated array of atoms:
1484 GdkAtom* targets = 0;
1485 gint n_targets = 0;
1486 gboolean test = gtk_clipboard_wait_for_targets( gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), &targets, &n_targets );
1487 if (!test) {
1488 n_targets = 0; //otherwise it will be -1.
1489 }
1491 //Add the targets to the C++ container:
1492 for (int i = 0; i < n_targets; i++)
1493 {
1494 //Convert the atom to a string:
1495 gchar* const atom_name = gdk_atom_name(targets[i]);
1497 Glib::ustring target;
1498 if (atom_name) {
1499 target = Glib::ScopedPtr<char>(atom_name).get(); //This frees the gchar*.
1500 }
1502 listTargets.push_back(target);
1503 }
1504 }
1506 /* #######################################
1507 ClipboardManager class
1508 ####################################### */
1510 ClipboardManager *ClipboardManager::_instance = NULL;
1512 ClipboardManager::ClipboardManager() {}
1513 ClipboardManager::~ClipboardManager() {}
1514 ClipboardManager *ClipboardManager::get()
1515 {
1516 if ( _instance == NULL ) {
1517 _instance = new ClipboardManagerImpl;
1518 }
1520 return _instance;
1521 }
1523 } // namespace Inkscape
1524 } // namespace IO
1526 /*
1527 Local Variables:
1528 mode:c++
1529 c-file-style:"stroustrup"
1530 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1531 indent-tabs-mode:nil
1532 fill-column:99
1533 End:
1534 */
1535 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :