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 = item->style;
658 if (style && (style->fill.isPaintserver())) {
659 SPPaintServer *server = item->style->getFillPaintServer();
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 SPPaintServer *server = item->style->getStrokePaintServer();
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 m.unSetup();
879 }
881 sp_selection_move_relative(selection, offset);
882 }
884 g_slist_free(pasted_objects);
885 }
888 /**
889 * @brief Paste SVG defs from the document retrieved from the clipboard into the active document
890 * @param clipdoc The document to paste
891 * @pre @c clipdoc != NULL and pasting into the active document is possible
892 */
893 void ClipboardManagerImpl::_pasteDefs(SPDesktop *desktop, SPDocument *clipdoc)
894 {
895 // boilerplate vars copied from _pasteDocument
896 SPDocument *target_document = sp_desktop_document(desktop);
897 Inkscape::XML::Node
898 *root = sp_document_repr_root(clipdoc),
899 *defs = sp_repr_lookup_name(root, "svg:defs", 1),
900 *target_defs = SP_OBJECT_REPR(SP_DOCUMENT_DEFS(target_document));
901 Inkscape::XML::Document *target_xmldoc = sp_document_repr_doc(target_document);
903 prevent_id_clashes(clipdoc, target_document);
905 for (Inkscape::XML::Node *def = defs->firstChild() ; def ; def = def->next()) {
906 _copyNode(def, target_xmldoc, target_defs);
907 }
908 }
911 /**
912 * @brief Retrieve a bitmap image from the clipboard and paste it into the active document
913 */
914 bool ClipboardManagerImpl::_pasteImage(SPDocument *doc)
915 {
916 if ( doc == NULL ) {
917 return false;
918 }
920 // retrieve image data
921 Glib::RefPtr<Gdk::Pixbuf> img = _clipboard->wait_for_image();
922 if (!img) {
923 return false;
924 }
926 // TODO unify with interface.cpp's sp_ui_drag_data_received()
927 // AARGH stupid
928 Inkscape::Extension::DB::InputList o;
929 Inkscape::Extension::db.get_input_list(o);
930 Inkscape::Extension::DB::InputList::const_iterator i = o.begin();
931 while (i != o.end() && strcmp( (*i)->get_mimetype(), "image/png" ) != 0) {
932 ++i;
933 }
934 Inkscape::Extension::Extension *png = *i;
935 bool save = (strcmp(png->get_param_optiongroup("link"), "embed") == 0);
936 png->set_param_optiongroup("link", "embed");
937 png->set_gui(false);
939 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-import", NULL );
940 img->save(filename, "png");
941 file_import(doc, filename, png);
942 g_free(filename);
944 png->set_param_optiongroup("link", save ? "embed" : "link");
945 png->set_gui(true);
947 return true;
948 }
950 /**
951 * @brief Paste text into the selected text object or create a new one to hold it
952 */
953 bool ClipboardManagerImpl::_pasteText(SPDesktop *desktop)
954 {
955 if ( desktop == NULL ) {
956 return false;
957 }
959 // if the text editing tool is active, paste the text into the active text object
960 if (tools_isactive(desktop, TOOLS_TEXT)) {
961 return sp_text_paste_inline(desktop->event_context);
962 }
964 // try to parse the text as a color and, if successful, apply it as the current style
965 SPCSSAttr *css = _parseColor(_clipboard->wait_for_text());
966 if (css) {
967 sp_desktop_set_style(desktop, css);
968 return true;
969 }
971 return false;
972 }
975 /**
976 * @brief Attempt to parse the passed string as a hexadecimal RGB or RGBA color
977 * @param text The Glib::ustring to parse
978 * @return New CSS style representation if the parsing was successful, NULL otherwise
979 */
980 SPCSSAttr *ClipboardManagerImpl::_parseColor(const Glib::ustring &text)
981 {
982 // TODO reuse existing code instead of replicating here.
983 Glib::ustring::size_type len = text.bytes();
984 char *str = const_cast<char *>(text.data());
985 bool attempt_alpha = false;
986 if ( !str || ( *str == '\0' ) ) {
987 return NULL; // this is OK due to boolean short-circuit
988 }
990 // those conditionals guard against parsing e.g. the string "fab" as "fab000"
991 // (incomplete color) and "45fab71" as "45fab710" (incomplete alpha)
992 if ( *str == '#' ) {
993 if ( len < 7 ) {
994 return NULL;
995 }
996 if ( len >= 9 ) {
997 attempt_alpha = true;
998 }
999 } else {
1000 if ( len < 6 ) {
1001 return NULL;
1002 }
1003 if ( len >= 8 ) {
1004 attempt_alpha = true;
1005 }
1006 }
1008 unsigned int color = 0, alpha = 0xff;
1010 // skip a leading #, if present
1011 if ( *str == '#' ) {
1012 ++str;
1013 }
1015 // try to parse first 6 digits
1016 int res = sscanf(str, "%6x", &color);
1017 if ( res && ( res != EOF ) ) {
1018 if (attempt_alpha) {// try to parse alpha if there's enough characters
1019 sscanf(str + 6, "%2x", &alpha);
1020 if ( !res || res == EOF ) {
1021 alpha = 0xff;
1022 }
1023 }
1025 SPCSSAttr *color_css = sp_repr_css_attr_new();
1027 // print and set properties
1028 gchar color_str[16];
1029 g_snprintf(color_str, 16, "#%06x", color);
1030 sp_repr_css_set_property(color_css, "fill", color_str);
1032 float opacity = static_cast<float>(alpha)/static_cast<float>(0xff);
1033 if (opacity > 1.0) {
1034 opacity = 1.0; // safeguard
1035 }
1036 Inkscape::CSSOStringStream opcss;
1037 opcss << opacity;
1038 sp_repr_css_set_property(color_css, "fill-opacity", opcss.str().data());
1039 return color_css;
1040 }
1041 return NULL;
1042 }
1045 /**
1046 * @brief Applies a pasted path effect to a given item
1047 */
1048 void ClipboardManagerImpl::_applyPathEffect(SPItem *item, gchar const *effectstack)
1049 {
1050 if ( item == NULL ) {
1051 return;
1052 }
1053 if ( SP_IS_RECT(item) ) {
1054 return;
1055 }
1057 if (SP_IS_LPE_ITEM(item))
1058 {
1059 SPLPEItem *lpeitem = SP_LPE_ITEM(item);
1060 // for each effect in the stack, check if we need to fork it before adding it to the item
1061 sp_lpe_item_fork_path_effects_if_necessary(lpeitem, 1);
1063 std::istringstream iss(effectstack);
1064 std::string href;
1065 while (std::getline(iss, href, ';'))
1066 {
1067 SPObject *obj = sp_uri_reference_resolve(_clipboardSPDoc, href.c_str());
1068 if (!obj) {
1069 return;
1070 }
1071 LivePathEffectObject *lpeobj = LIVEPATHEFFECT(obj);
1072 sp_lpe_item_add_path_effect(lpeitem, lpeobj);
1073 }
1074 }
1075 }
1078 /**
1079 * @brief Retrieve the clipboard contents as a document
1080 * @return Clipboard contents converted to SPDocument, or NULL if no suitable content was present
1081 */
1082 SPDocument *ClipboardManagerImpl::_retrieveClipboard(Glib::ustring required_target)
1083 {
1084 Glib::ustring best_target;
1085 if ( required_target == "" ) {
1086 best_target = _getBestTarget();
1087 } else {
1088 best_target = required_target;
1089 }
1091 if ( best_target == "" ) {
1092 return NULL;
1093 }
1095 // FIXME: Temporary hack until we add memory input.
1096 // Save the clipboard contents to some file, then read it
1097 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-import", NULL );
1099 bool file_saved = false;
1100 Glib::ustring target = best_target;
1102 #ifdef WIN32
1103 if (best_target == CLIPBOARD_WIN32_EMF_TARGET)
1104 { // Try to save clipboard data as en emf file (using win32 api)
1105 if (OpenClipboard(NULL)) {
1106 HGLOBAL hglb = GetClipboardData(CF_ENHMETAFILE);
1107 if (hglb) {
1108 HENHMETAFILE hemf = CopyEnhMetaFile((HENHMETAFILE) hglb, filename);
1109 if (hemf) {
1110 file_saved = true;
1111 target = CLIPBOARD_WIN32_EMF_MIME;
1112 DeleteEnhMetaFile(hemf);
1113 }
1114 }
1115 CloseClipboard();
1116 }
1117 }
1118 #endif
1120 if (!file_saved) {
1121 if ( !_clipboard->wait_is_target_available(best_target) ) {
1122 return NULL;
1123 }
1125 // doing this synchronously makes better sense
1126 // TODO: use another method because this one is badly broken imo.
1127 // from documentation: "Returns: A SelectionData object, which will be invalid if retrieving the given target failed."
1128 // I don't know how to check whether an object is 'valid' or not, unusable if that's not possible...
1129 Gtk::SelectionData sel = _clipboard->wait_for_contents(best_target);
1130 target = sel.get_target(); // this can crash if the result was invalid of last function. No way to check for this :(
1132 // FIXME: Temporary hack until we add memory input.
1133 // Save the clipboard contents to some file, then read it
1134 g_file_set_contents(filename, (const gchar *) sel.get_data(), sel.get_length(), NULL);
1135 }
1137 // there is no specific plain SVG input extension, so if we can paste the Inkscape SVG format,
1138 // we use the image/svg+xml mimetype to look up the input extension
1139 if (target == "image/x-inkscape-svg") {
1140 target = "image/svg+xml";
1141 }
1143 Inkscape::Extension::DB::InputList inlist;
1144 Inkscape::Extension::db.get_input_list(inlist);
1145 Inkscape::Extension::DB::InputList::const_iterator in = inlist.begin();
1146 for (; in != inlist.end() && target != (*in)->get_mimetype() ; ++in) {
1147 };
1148 if ( in == inlist.end() ) {
1149 return NULL; // this shouldn't happen unless _getBestTarget returns something bogus
1150 }
1152 SPDocument *tempdoc = NULL;
1153 try {
1154 tempdoc = (*in)->open(filename);
1155 } catch (...) {
1156 }
1157 g_unlink(filename);
1158 g_free(filename);
1160 return tempdoc;
1161 }
1164 /**
1165 * @brief Callback called when some other application requests data from Inkscape
1166 *
1167 * Finds a suitable output extension to save the internal clipboard document,
1168 * then saves it to memory and sets the clipboard contents.
1169 */
1170 void ClipboardManagerImpl::_onGet(Gtk::SelectionData &sel, guint /*info*/)
1171 {
1172 g_assert( _clipboardSPDoc != NULL );
1174 Glib::ustring target = sel.get_target();
1175 if (target == "") {
1176 return; // this shouldn't happen
1177 }
1179 if (target == CLIPBOARD_TEXT_TARGET) {
1180 target = "image/x-inkscape-svg";
1181 }
1183 Inkscape::Extension::DB::OutputList outlist;
1184 Inkscape::Extension::db.get_output_list(outlist);
1185 Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin();
1186 for ( ; out != outlist.end() && target != (*out)->get_mimetype() ; ++out) {
1187 };
1188 if ( out == outlist.end() && target != "image/png") {
1189 return; // this also shouldn't happen
1190 }
1192 // FIXME: Temporary hack until we add support for memory output.
1193 // Save to a temporary file, read it back and then set the clipboard contents
1194 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-export", NULL );
1195 gsize len; gchar *data;
1197 try {
1198 if (out == outlist.end() && target == "image/png")
1199 {
1200 gdouble dpi = PX_PER_IN;
1201 guint32 bgcolor = 0x00000000;
1203 Geom::Point origin (SP_ROOT(_clipboardSPDoc->root)->x.computed, SP_ROOT(_clipboardSPDoc->root)->y.computed);
1204 Geom::Rect area = Geom::Rect(origin, origin + sp_document_dimensions(_clipboardSPDoc));
1206 unsigned long int width = (unsigned long int) (area.width() * dpi / PX_PER_IN + 0.5);
1207 unsigned long int height = (unsigned long int) (area.height() * dpi / PX_PER_IN + 0.5);
1209 // read from namedview
1210 Inkscape::XML::Node *nv = sp_repr_lookup_name (_clipboardSPDoc->rroot, "sodipodi:namedview");
1211 if (nv && nv->attribute("pagecolor")) {
1212 bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00);
1213 }
1214 if (nv && nv->attribute("inkscape:pageopacity")) {
1215 bgcolor |= SP_COLOR_F_TO_U(sp_repr_get_double_attribute (nv, "inkscape:pageopacity", 1.0));
1216 }
1218 sp_export_png_file(_clipboardSPDoc, filename, area, width, height, dpi, dpi, bgcolor, NULL, NULL, true, NULL);
1219 }
1220 else
1221 {
1222 if (!(*out)->loaded()) {
1223 // Need to load the extension.
1224 (*out)->set_state(Inkscape::Extension::Extension::STATE_LOADED);
1225 }
1226 (*out)->save(_clipboardSPDoc, filename);
1227 }
1228 g_file_get_contents(filename, &data, &len, NULL);
1230 sel.set(8, (guint8 const *) data, len);
1231 } catch (...) {
1232 }
1234 g_unlink(filename); // delete the temporary file
1235 g_free(filename);
1236 }
1239 /**
1240 * @brief Callback when someone else takes the clipboard
1241 *
1242 * When the clipboard owner changes, this callback clears the internal clipboard document
1243 * to reduce memory usage.
1244 */
1245 void ClipboardManagerImpl::_onClear()
1246 {
1247 // why is this called before _onGet???
1248 //_discardInternalClipboard();
1249 }
1252 /**
1253 * @brief Creates an internal clipboard document from scratch
1254 */
1255 void ClipboardManagerImpl::_createInternalClipboard()
1256 {
1257 if ( _clipboardSPDoc == NULL ) {
1258 _clipboardSPDoc = sp_document_new(NULL, false, true);
1259 //g_assert( _clipboardSPDoc != NULL );
1260 _defs = SP_OBJECT_REPR(SP_DOCUMENT_DEFS(_clipboardSPDoc));
1261 _doc = sp_document_repr_doc(_clipboardSPDoc);
1262 _root = sp_document_repr_root(_clipboardSPDoc);
1264 _clipnode = _doc->createElement("inkscape:clipboard");
1265 _root->appendChild(_clipnode);
1266 Inkscape::GC::release(_clipnode);
1268 // once we create a SVG document, style will be stored in it, so flush _text_style
1269 if (_text_style) {
1270 sp_repr_css_attr_unref(_text_style);
1271 _text_style = NULL;
1272 }
1273 }
1274 }
1277 /**
1278 * @brief Deletes the internal clipboard document
1279 */
1280 void ClipboardManagerImpl::_discardInternalClipboard()
1281 {
1282 if ( _clipboardSPDoc != NULL ) {
1283 sp_document_unref(_clipboardSPDoc);
1284 _clipboardSPDoc = NULL;
1285 _defs = NULL;
1286 _doc = NULL;
1287 _root = NULL;
1288 _clipnode = NULL;
1289 }
1290 }
1293 /**
1294 * @brief Get the scale to resize an item, based on the command and desktop state
1295 */
1296 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)
1297 {
1298 double scale_x = 1.0;
1299 double scale_y = 1.0;
1301 if (apply_x) {
1302 scale_x = (max[Geom::X] - min[Geom::X]) / obj_rect[Geom::X].extent();
1303 }
1304 if (apply_y) {
1305 scale_y = (max[Geom::Y] - min[Geom::Y]) / obj_rect[Geom::Y].extent();
1306 }
1307 // If the "lock aspect ratio" button is pressed and we paste only a single coordinate,
1308 // resize the second one by the same ratio too
1309 if (desktop->isToolboxButtonActive("lock")) {
1310 if (apply_x && !apply_y) {
1311 scale_y = scale_x;
1312 }
1313 if (apply_y && !apply_x) {
1314 scale_x = scale_y;
1315 }
1316 }
1318 return Geom::Scale(scale_x, scale_y);
1319 }
1322 /**
1323 * @brief Find the most suitable clipboard target
1324 */
1325 Glib::ustring ClipboardManagerImpl::_getBestTarget()
1326 {
1327 // GTKmm's wait_for_targets() is broken, see the comment in _inkscape_wait_for_targets()
1328 std::list<Glib::ustring> targets; // = _clipboard->wait_for_targets();
1329 _inkscape_wait_for_targets(targets);
1331 // clipboard target debugging snippet
1332 /*
1333 g_debug("Begin clipboard targets");
1334 for ( std::list<Glib::ustring>::iterator x = targets.begin() ; x != targets.end(); ++x )
1335 g_debug("Clipboard target: %s", (*x).data());
1336 g_debug("End clipboard targets\n");
1337 //*/
1339 for (std::list<Glib::ustring>::iterator i = _preferred_targets.begin() ;
1340 i != _preferred_targets.end() ; ++i)
1341 {
1342 if ( std::find(targets.begin(), targets.end(), *i) != targets.end() ) {
1343 return *i;
1344 }
1345 }
1346 #ifdef WIN32
1347 if (OpenClipboard(NULL))
1348 { // If both bitmap and metafile are present, pick the one that was exported first.
1349 UINT format = EnumClipboardFormats(0);
1350 while (format) {
1351 if (format == CF_ENHMETAFILE || format == CF_DIB || format == CF_BITMAP) {
1352 break;
1353 }
1354 format = EnumClipboardFormats(format);
1355 }
1356 CloseClipboard();
1358 if (format == CF_ENHMETAFILE) {
1359 return CLIPBOARD_WIN32_EMF_TARGET;
1360 }
1361 if (format == CF_DIB || format == CF_BITMAP) {
1362 return CLIPBOARD_GDK_PIXBUF_TARGET;
1363 }
1364 }
1366 if (IsClipboardFormatAvailable(CF_ENHMETAFILE)) {
1367 return CLIPBOARD_WIN32_EMF_TARGET;
1368 }
1369 #endif
1370 if (_clipboard->wait_is_image_available()) {
1371 return CLIPBOARD_GDK_PIXBUF_TARGET;
1372 }
1373 if (_clipboard->wait_is_text_available()) {
1374 return CLIPBOARD_TEXT_TARGET;
1375 }
1377 return "";
1378 }
1381 /**
1382 * @brief Set the clipboard targets to reflect the mimetypes Inkscape can output
1383 */
1384 void ClipboardManagerImpl::_setClipboardTargets()
1385 {
1386 Inkscape::Extension::DB::OutputList outlist;
1387 Inkscape::Extension::db.get_output_list(outlist);
1388 std::list<Gtk::TargetEntry> target_list;
1389 bool plaintextSet = false;
1390 for (Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin() ; out != outlist.end() ; ++out) {
1391 if ( !(*out)->deactivated() ) {
1392 Glib::ustring mime = (*out)->get_mimetype();
1393 if (mime != CLIPBOARD_TEXT_TARGET) {
1394 if ( !plaintextSet && (mime.find("svg") == Glib::ustring::npos) ) {
1395 target_list.push_back(Gtk::TargetEntry(CLIPBOARD_TEXT_TARGET));
1396 plaintextSet = true;
1397 }
1398 target_list.push_back(Gtk::TargetEntry(mime));
1399 }
1400 }
1401 }
1403 // Add PNG export explicitly since there is no extension for this...
1404 // On Windows, GTK will also present this as a CF_DIB/CF_BITMAP
1405 target_list.push_back(Gtk::TargetEntry( "image/png" ));
1407 _clipboard->set(target_list,
1408 sigc::mem_fun(*this, &ClipboardManagerImpl::_onGet),
1409 sigc::mem_fun(*this, &ClipboardManagerImpl::_onClear));
1411 #ifdef WIN32
1412 // If the "image/x-emf" target handled by the emf extension would be
1413 // presented as a CF_ENHMETAFILE automatically (just like an "image/bmp"
1414 // is presented as a CF_BITMAP) this code would not be needed.. ???
1415 // Or maybe there is some other way to achieve the same?
1417 // Note: Metafile is the only format that is rendered and stored in clipboard
1418 // on Copy, all other formats are rendered only when needed by a Paste command.
1420 // FIXME: This should at least be rewritten to use "delayed rendering".
1421 // If possible make it delayed rendering by using GTK API only.
1423 if (OpenClipboard(NULL)) {
1424 if ( _clipboardSPDoc != NULL ) {
1425 const Glib::ustring target = CLIPBOARD_WIN32_EMF_MIME;
1427 Inkscape::Extension::DB::OutputList outlist;
1428 Inkscape::Extension::db.get_output_list(outlist);
1429 Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin();
1430 for ( ; out != outlist.end() && target != (*out)->get_mimetype() ; ++out) {
1431 }
1432 if ( out != outlist.end() ) {
1433 // FIXME: Temporary hack until we add support for memory output.
1434 // Save to a temporary file, read it back and then set the clipboard contents
1435 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-export.emf", NULL );
1437 try {
1438 (*out)->save(_clipboardSPDoc, filename);
1439 HENHMETAFILE hemf = GetEnhMetaFileA(filename);
1440 if (hemf) {
1441 SetClipboardData(CF_ENHMETAFILE, hemf);
1442 DeleteEnhMetaFile(hemf);
1443 }
1444 } catch (...) {
1445 }
1446 g_unlink(filename); // delete the temporary file
1447 g_free(filename);
1448 }
1449 }
1450 CloseClipboard();
1451 }
1452 #endif
1453 }
1456 /**
1457 * @brief Set the string representation of a 32-bit RGBA color as the clipboard contents
1458 */
1459 void ClipboardManagerImpl::_setClipboardColor(guint32 color)
1460 {
1461 gchar colorstr[16];
1462 g_snprintf(colorstr, 16, "%08x", color);
1463 _clipboard->set_text(colorstr);
1464 }
1467 /**
1468 * @brief Put a notification on the mesage stack
1469 */
1470 void ClipboardManagerImpl::_userWarn(SPDesktop *desktop, char const *msg)
1471 {
1472 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, msg);
1473 }
1476 // GTKMM's clipboard::wait_for_targets is buggy and might return bogus, see
1477 //
1478 // https://bugs.launchpad.net/inkscape/+bug/296778
1479 // http://mail.gnome.org/archives/gtk-devel-list/2009-June/msg00062.html
1480 //
1481 // for details. Until this has been fixed upstream we will use our own implementation
1482 // of this method, as copied from /gtkmm-2.16.0/gtk/gtkmm/clipboard.cc.
1483 void ClipboardManagerImpl::_inkscape_wait_for_targets(std::list<Glib::ustring> &listTargets)
1484 {
1485 //Get a newly-allocated array of atoms:
1486 GdkAtom* targets = 0;
1487 gint n_targets = 0;
1488 gboolean test = gtk_clipboard_wait_for_targets( gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), &targets, &n_targets );
1489 if (!test) {
1490 n_targets = 0; //otherwise it will be -1.
1491 }
1493 //Add the targets to the C++ container:
1494 for (int i = 0; i < n_targets; i++)
1495 {
1496 //Convert the atom to a string:
1497 gchar* const atom_name = gdk_atom_name(targets[i]);
1499 Glib::ustring target;
1500 if (atom_name) {
1501 target = Glib::ScopedPtr<char>(atom_name).get(); //This frees the gchar*.
1502 }
1504 listTargets.push_back(target);
1505 }
1506 }
1508 /* #######################################
1509 ClipboardManager class
1510 ####################################### */
1512 ClipboardManager *ClipboardManager::_instance = NULL;
1514 ClipboardManager::ClipboardManager() {}
1515 ClipboardManager::~ClipboardManager() {}
1516 ClipboardManager *ClipboardManager::get()
1517 {
1518 if ( _instance == NULL ) {
1519 _instance = new ClipboardManagerImpl;
1520 }
1522 return _instance;
1523 }
1525 } // namespace Inkscape
1526 } // namespace IO
1528 /*
1529 Local Variables:
1530 mode:c++
1531 c-file-style:"stroustrup"
1532 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1533 indent-tabs-mode:nil
1534 fill-column:99
1535 End:
1536 */
1537 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :