1 /** @file
2 * @brief System-wide clipboard management - implementation
3 */
4 /* Authors:
5 * Krzysztof KosiĆski <tweenk@o2.pl>
6 * Incorporates some code from selection-chemistry.cpp, see that file for more credits.
7 *
8 * Copyright (C) 2008 authors
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version 2
13 * of the License, or (at your option) any later version.
14 *
15 * See the file COPYING for details.
16 */
18 #include "ui/clipboard.h"
20 // TODO: reduce header bloat if possible
22 #include <list>
23 #include <algorithm>
24 #include <gtkmm/clipboard.h>
25 #include <glibmm/ustring.h>
26 #include <glibmm/i18n.h>
27 #include <glib/gstdio.h> // for g_file_set_contents etc., used in _onGet and paste
28 #include "gc-core.h"
29 #include "xml/repr.h"
30 #include "inkscape.h"
31 #include "io/stringstream.h"
32 #include "desktop.h"
33 #include "desktop-handles.h"
34 #include "desktop-style.h" // for sp_desktop_set_style, used in _pasteStyle
35 #include "document.h"
36 #include "document-private.h"
37 #include "selection.h"
38 #include "message-stack.h"
39 #include "context-fns.h"
40 #include "dropper-context.h" // used in copy()
41 #include "style.h"
42 #include "extension/db.h" // extension database
43 #include "extension/input.h"
44 #include "extension/output.h"
45 #include "selection-chemistry.h"
46 #include "libnr/nr-rect.h"
47 #include "libnr/nr-convert2geom.h"
48 #include <2geom/rect.h>
49 #include <2geom/transforms.h>
50 #include "box3d.h"
51 #include "gradient-drag.h"
52 #include "sp-item.h"
53 #include "sp-item-transform.h" // for sp_item_scale_rel, used in _pasteSize
54 #include "sp-path.h"
55 #include "sp-pattern.h"
56 #include "sp-shape.h"
57 #include "sp-gradient.h"
58 #include "sp-gradient-reference.h"
59 #include "sp-gradient-fns.h"
60 #include "sp-linear-gradient-fns.h"
61 #include "sp-radial-gradient-fns.h"
62 #include "sp-clippath.h"
63 #include "sp-mask.h"
64 #include "sp-textpath.h"
65 #include "sp-rect.h"
66 #include "live_effects/lpeobject.h"
67 #include "live_effects/lpeobject-reference.h"
68 #include "live_effects/parameter/path.h"
69 #include "svg/svg.h" // for sp_svg_transform_write, used in _copySelection
70 #include "svg/css-ostringstream.h" // used in _parseColor
71 #include "file.h" // for file_import, used in _pasteImage
72 #include "preferences.h" // for used in _pasteImage
73 #include "text-context.h"
74 #include "text-editing.h"
75 #include "tools-switch.h"
76 #include "path-chemistry.h"
77 #include "id-clash.h"
78 #include "unit-constants.h"
79 #include "helper/png-write.h"
80 #include "svg/svg-color.h"
81 #include "sp-namedview.h"
82 #include "snap.h"
84 /// @brief Made up mimetype to represent Gdk::Pixbuf clipboard contents
85 #define CLIPBOARD_GDK_PIXBUF_TARGET "image/x-gdk-pixbuf"
87 #define CLIPBOARD_TEXT_TARGET "text/plain"
89 #ifdef WIN32
90 #include <windows.h>
91 // Clipboard Formats: http://msdn.microsoft.com/en-us/library/ms649013(VS.85).aspx
92 // On Windows, most graphical applications can handle CF_DIB/CF_BITMAP and/or CF_ENHMETAFILE
93 // GTK automatically presents an "image/bmp" target as CF_DIB/CF_BITMAP
94 // Presenting "image/x-emf" as CF_ENHMETAFILE must be done by Inkscape ?
95 #define CLIPBOARD_WIN32_EMF_TARGET "CF_ENHMETAFILE"
96 #define CLIPBOARD_WIN32_EMF_MIME "image/x-emf"
97 #endif
99 namespace Inkscape {
100 namespace UI {
103 /**
104 * @brief Default implementation of the clipboard manager
105 */
106 class ClipboardManagerImpl : public ClipboardManager {
107 public:
108 virtual void copy();
109 virtual void copyPathParameter(Inkscape::LivePathEffect::PathParam *);
110 virtual bool paste(bool in_place);
111 virtual bool pasteStyle();
112 virtual bool pasteSize(bool, bool, bool);
113 virtual bool pastePathEffect();
114 virtual Glib::ustring getPathParameter();
115 virtual Glib::ustring getShapeOrTextObjectId();
116 virtual const gchar *getFirstObjectID();
118 ClipboardManagerImpl();
119 ~ClipboardManagerImpl();
121 private:
122 void _copySelection(Inkscape::Selection *);
123 void _copyUsedDefs(SPItem *);
124 void _copyGradient(SPGradient *);
125 void _copyPattern(SPPattern *);
126 void _copyTextPath(SPTextPath *);
127 Inkscape::XML::Node *_copyNode(Inkscape::XML::Node *, Inkscape::XML::Document *, Inkscape::XML::Node *);
129 void _pasteDocument(SPDocument *, bool in_place);
130 void _pasteDefs(SPDocument *);
131 bool _pasteImage();
132 bool _pasteText();
133 SPCSSAttr *_parseColor(const Glib::ustring &);
134 void _applyPathEffect(SPItem *, gchar const *);
135 SPDocument *_retrieveClipboard(Glib::ustring = "");
137 // clipboard callbacks
138 void _onGet(Gtk::SelectionData &, guint);
139 void _onClear();
141 // various helpers
142 void _createInternalClipboard();
143 void _discardInternalClipboard();
144 Inkscape::XML::Node *_createClipNode();
145 Geom::Scale _getScale(Geom::Point const &, Geom::Point const &, Geom::Rect const &, bool, bool);
146 Glib::ustring _getBestTarget();
147 void _setClipboardTargets();
148 void _setClipboardColor(guint32);
149 void _userWarn(SPDesktop *, char const *);
151 void _inkscape_wait_for_targets(std::list<Glib::ustring> &);
153 // private properites
154 SPDocument *_clipboardSPDoc; ///< Document that stores the clipboard until someone requests it
155 Inkscape::XML::Node *_defs; ///< Reference to the clipboard document's defs node
156 Inkscape::XML::Node *_root; ///< Reference to the clipboard's root node
157 Inkscape::XML::Node *_clipnode; ///< The node that holds extra information
158 Inkscape::XML::Document *_doc; ///< Reference to the clipboard's Inkscape::XML::Document
160 // we need a way to copy plain text AND remember its style;
161 // the standard _clipnode is only available in an SVG tree, hence this special storage
162 SPCSSAttr *_text_style; ///< Style copied along with plain text fragment
164 Glib::RefPtr<Gtk::Clipboard> _clipboard; ///< Handle to the system wide clipboard - for convenience
165 std::list<Glib::ustring> _preferred_targets; ///< List of supported clipboard targets
166 };
169 ClipboardManagerImpl::ClipboardManagerImpl()
170 : _clipboardSPDoc(NULL),
171 _defs(NULL),
172 _root(NULL),
173 _clipnode(NULL),
174 _doc(NULL),
175 _text_style(NULL),
176 _clipboard( Gtk::Clipboard::get() )
177 {
178 // push supported clipboard targets, in order of preference
179 _preferred_targets.push_back("image/x-inkscape-svg");
180 _preferred_targets.push_back("image/svg+xml");
181 _preferred_targets.push_back("image/svg+xml-compressed");
182 #ifdef WIN32
183 _preferred_targets.push_back(CLIPBOARD_WIN32_EMF_MIME);
184 #endif
185 _preferred_targets.push_back("application/pdf");
186 _preferred_targets.push_back("image/x-adobe-illustrator");
187 }
190 ClipboardManagerImpl::~ClipboardManagerImpl() {}
193 /**
194 * @brief Copy selection contents to the clipboard
195 */
196 void ClipboardManagerImpl::copy()
197 {
198 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
199 if ( desktop == NULL ) return;
200 Inkscape::Selection *selection = sp_desktop_selection(desktop);
202 // Special case for when the gradient dragger is active - copies gradient color
203 if (desktop->event_context->get_drag()) {
204 GrDrag *drag = desktop->event_context->get_drag();
205 if (drag->hasSelection()) {
206 guint32 col = drag->getColor();
208 // set the color as clipboard content (text in RRGGBBAA format)
209 _setClipboardColor(col);
211 // create a style with this color on fill and opacity in master opacity, so it can be
212 // pasted on other stops or objects
213 if (_text_style) {
214 sp_repr_css_attr_unref(_text_style);
215 _text_style = NULL;
216 }
217 _text_style = sp_repr_css_attr_new();
218 // print and set properties
219 gchar color_str[16];
220 g_snprintf(color_str, 16, "#%06x", col >> 8);
221 sp_repr_css_set_property(_text_style, "fill", color_str);
222 float opacity = SP_RGBA32_A_F(col);
223 if (opacity > 1.0) opacity = 1.0; // safeguard
224 Inkscape::CSSOStringStream opcss;
225 opcss << opacity;
226 sp_repr_css_set_property(_text_style, "opacity", opcss.str().data());
228 _discardInternalClipboard();
229 return;
230 }
231 }
233 // Special case for when the color picker ("dropper") is active - copies color under cursor
234 if (tools_isactive(desktop, TOOLS_DROPPER)) {
235 _setClipboardColor(sp_dropper_context_get_color(desktop->event_context));
236 _discardInternalClipboard();
237 return;
238 }
240 // Special case for when the text tool is active - if some text is selected, copy plain text,
241 // not the object that holds it; also copy the style at cursor into
242 if (tools_isactive(desktop, TOOLS_TEXT)) {
243 _discardInternalClipboard();
244 Glib::ustring selected_text = sp_text_get_selected_text(desktop->event_context);
245 if (!selected_text.empty()) {
246 _clipboard->set_text(selected_text);
247 }
248 if (_text_style) {
249 sp_repr_css_attr_unref(_text_style);
250 _text_style = NULL;
251 }
252 _text_style = sp_text_get_style_at_cursor(desktop->event_context);
253 return;
254 }
256 if (selection->isEmpty()) { // check whether something is selected
257 _userWarn(desktop, _("Nothing was copied."));
258 return;
259 }
260 _discardInternalClipboard();
262 _createInternalClipboard(); // construct a new clipboard document
263 _copySelection(selection); // copy all items in the selection to the internal clipboard
264 fit_canvas_to_drawing(_clipboardSPDoc);
266 _setClipboardTargets();
267 }
270 /**
271 * @brief Copy a Live Path Effect path parameter to the clipboard
272 * @param pp The path parameter to store in the clipboard
273 */
274 void ClipboardManagerImpl::copyPathParameter(Inkscape::LivePathEffect::PathParam *pp)
275 {
276 if ( pp == NULL ) return;
277 gchar *svgd = sp_svg_write_path( pp->get_pathvector() );
278 if ( svgd == NULL || *svgd == '\0' ) return;
280 _discardInternalClipboard();
281 _createInternalClipboard();
283 Inkscape::XML::Node *pathnode = _doc->createElement("svg:path");
284 pathnode->setAttribute("d", svgd);
285 g_free(svgd);
286 _root->appendChild(pathnode);
287 Inkscape::GC::release(pathnode);
289 fit_canvas_to_drawing(_clipboardSPDoc);
290 _setClipboardTargets();
291 }
293 /**
294 * @brief Paste from the system clipboard into the active desktop
295 * @param in_place Whether to put the contents where they were when copied
296 */
297 bool ClipboardManagerImpl::paste(bool in_place)
298 {
299 // do any checking whether we really are able to paste before requesting the contents
300 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
301 if ( desktop == NULL ) return false;
302 if ( Inkscape::have_viable_layer(desktop, desktop->messageStack()) == false ) return false;
304 Glib::ustring target = _getBestTarget();
306 // Special cases of clipboard content handling go here
307 // Note that target priority is determined in _getBestTarget.
308 // TODO: Handle x-special/gnome-copied-files and text/uri-list to support pasting files
310 // if there is an image on the clipboard, paste it
311 if ( target == CLIPBOARD_GDK_PIXBUF_TARGET ) return _pasteImage();
312 // if there's only text, paste it into a selected text object or create a new one
313 if ( target == CLIPBOARD_TEXT_TARGET ) return _pasteText();
315 // otherwise, use the import extensions
316 SPDocument *tempdoc = _retrieveClipboard(target);
317 if ( tempdoc == NULL ) {
318 _userWarn(desktop, _("Nothing on the clipboard."));
319 return false;
320 }
322 _pasteDocument(tempdoc, in_place);
323 sp_document_unref(tempdoc);
325 return true;
326 }
328 /**
329 * @brief Returns the id of the first visible copied object
330 */
331 const gchar *ClipboardManagerImpl::getFirstObjectID()
332 {
333 SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg");
334 if ( tempdoc == NULL ) {
335 return NULL;
336 }
338 Inkscape::XML::Node
339 *root = sp_document_repr_root(tempdoc);
341 if (!root)
342 return NULL;
344 Inkscape::XML::Node *ch = sp_repr_children(root);
345 while (ch != NULL &&
346 strcmp(ch->name(), "svg:g") &&
347 strcmp(ch->name(), "svg:path") &&
348 strcmp(ch->name(), "svg:use") &&
349 strcmp(ch->name(), "svg:text") &&
350 strcmp(ch->name(), "svg:image") &&
351 strcmp(ch->name(), "svg:rect")
352 )
353 ch = ch->next();
355 if (ch) {
356 return ch->attribute("id");
357 }
359 return NULL;
360 }
363 /**
364 * @brief Implements the Paste Style action
365 */
366 bool ClipboardManagerImpl::pasteStyle()
367 {
368 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
369 if (desktop == NULL) return false;
371 // check whether something is selected
372 Inkscape::Selection *selection = sp_desktop_selection(desktop);
373 if (selection->isEmpty()) {
374 _userWarn(desktop, _("Select <b>object(s)</b> to paste style to."));
375 return false;
376 }
378 SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg");
379 if ( tempdoc == NULL ) {
380 // no document, but we can try _text_style
381 if (_text_style) {
382 sp_desktop_set_style(desktop, _text_style);
383 return true;
384 } else {
385 _userWarn(desktop, _("No style on the clipboard."));
386 return false;
387 }
388 }
390 Inkscape::XML::Node
391 *root = sp_document_repr_root(tempdoc),
392 *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1);
394 bool pasted = false;
396 if (clipnode) {
397 _pasteDefs(tempdoc);
398 SPCSSAttr *style = sp_repr_css_attr(clipnode, "style");
399 sp_desktop_set_style(desktop, style);
400 pasted = true;
401 }
402 else {
403 _userWarn(desktop, _("No style on the clipboard."));
404 }
406 sp_document_unref(tempdoc);
407 return pasted;
408 }
411 /**
412 * @brief Resize the selection or each object in the selection to match the clipboard's size
413 * @param separately Whether to scale each object in the selection separately
414 * @param apply_x Whether to scale the width of objects / selection
415 * @param apply_y Whether to scale the height of objects / selection
416 */
417 bool ClipboardManagerImpl::pasteSize(bool separately, bool apply_x, bool apply_y)
418 {
419 if(!apply_x && !apply_y) return false; // pointless parameters
421 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
422 if ( desktop == NULL ) return false;
423 Inkscape::Selection *selection = sp_desktop_selection(desktop);
424 if (selection->isEmpty()) {
425 _userWarn(desktop, _("Select <b>object(s)</b> to paste size to."));
426 return false;
427 }
429 // FIXME: actually, this should accept arbitrary documents
430 SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg");
431 if ( tempdoc == NULL ) {
432 _userWarn(desktop, _("No size on the clipboard."));
433 return false;
434 }
436 // retrieve size ifomration from the clipboard
437 Inkscape::XML::Node *root = sp_document_repr_root(tempdoc);
438 Inkscape::XML::Node *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1);
439 bool pasted = false;
440 if (clipnode) {
441 Geom::Point min, max;
442 sp_repr_get_point(clipnode, "min", &min);
443 sp_repr_get_point(clipnode, "max", &max);
445 // resize each object in the selection
446 if (separately) {
447 for (GSList *i = const_cast<GSList*>(selection->itemList()) ; i ; i = i->next) {
448 SPItem *item = SP_ITEM(i->data);
449 Geom::OptRect obj_size = sp_item_bbox_desktop(item);
450 if ( !obj_size ) continue;
451 sp_item_scale_rel(item, _getScale(min, max, *obj_size, apply_x, apply_y));
452 }
453 }
454 // resize the selection as a whole
455 else {
456 Geom::OptRect sel_size = selection->bounds();
457 if ( sel_size ) {
458 sp_selection_scale_relative(selection, sel_size->midpoint(),
459 _getScale(min, max, *sel_size, apply_x, apply_y));
460 }
461 }
462 pasted = true;
463 }
464 sp_document_unref(tempdoc);
465 return pasted;
466 }
469 /**
470 * @brief Applies a path effect from the clipboard to the selected path
471 */
472 bool ClipboardManagerImpl::pastePathEffect()
473 {
474 /** @todo FIXME: pastePathEffect crashes when moving the path with the applied effect,
475 segfaulting in fork_private_if_necessary(). */
477 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
478 if ( desktop == NULL )
479 return false;
481 Inkscape::Selection *selection = sp_desktop_selection(desktop);
482 if (selection && selection->isEmpty()) {
483 _userWarn(desktop, _("Select <b>object(s)</b> to paste live path effect to."));
484 return false;
485 }
487 SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg");
488 if ( tempdoc ) {
489 Inkscape::XML::Node *root = sp_document_repr_root(tempdoc);
490 Inkscape::XML::Node *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1);
491 if ( clipnode ) {
492 gchar const *effectstack = clipnode->attribute("inkscape:path-effect");
493 if ( effectstack ) {
494 _pasteDefs(tempdoc);
495 // make sure all selected items are converted to paths first (i.e. rectangles)
496 sp_selected_to_lpeitems(desktop);
497 for (GSList *itemptr = const_cast<GSList *>(selection->itemList()) ; itemptr ; itemptr = itemptr->next) {
498 SPItem *item = reinterpret_cast<SPItem*>(itemptr->data);
499 _applyPathEffect(item, effectstack);
500 }
502 return true;
503 }
504 }
505 }
507 // no_effect:
508 _userWarn(desktop, _("No effect on the clipboard."));
509 return false;
510 }
513 /**
514 * @brief Get LPE path data from the clipboard
515 * @return The retrieved path data (contents of the d attribute), or "" if no path was found
516 */
517 Glib::ustring ClipboardManagerImpl::getPathParameter()
518 {
519 SPDocument *tempdoc = _retrieveClipboard(); // any target will do here
520 if ( tempdoc == NULL ) {
521 _userWarn(SP_ACTIVE_DESKTOP, _("Nothing on the clipboard."));
522 return "";
523 }
524 Inkscape::XML::Node
525 *root = sp_document_repr_root(tempdoc),
526 *path = sp_repr_lookup_name(root, "svg:path", -1); // unlimited search depth
527 if ( path == NULL ) {
528 _userWarn(SP_ACTIVE_DESKTOP, _("Clipboard does not contain a path."));
529 sp_document_unref(tempdoc);
530 return "";
531 }
532 gchar const *svgd = path->attribute("d");
533 return svgd;
534 }
537 /**
538 * @brief Get object id of a shape or text item from the clipboard
539 * @return The retrieved id string (contents of the id attribute), or "" if no shape or text item was found
540 */
541 Glib::ustring ClipboardManagerImpl::getShapeOrTextObjectId()
542 {
543 SPDocument *tempdoc = _retrieveClipboard(); // any target will do here
544 if ( tempdoc == NULL ) {
545 _userWarn(SP_ACTIVE_DESKTOP, _("Nothing on the clipboard."));
546 return "";
547 }
548 Inkscape::XML::Node *root = sp_document_repr_root(tempdoc);
550 Inkscape::XML::Node *repr = sp_repr_lookup_name(root, "svg:path", -1); // unlimited search depth
551 if ( repr == NULL )
552 repr = sp_repr_lookup_name(root, "svg:text", -1);
554 if ( repr == NULL ) {
555 _userWarn(SP_ACTIVE_DESKTOP, _("Clipboard does not contain a path."));
556 sp_document_unref(tempdoc);
557 return "";
558 }
559 gchar const *svgd = repr->attribute("id");
560 return svgd;
561 }
564 /**
565 * @brief Iterate over a list of items and copy them to the clipboard.
566 */
567 void ClipboardManagerImpl::_copySelection(Inkscape::Selection *selection)
568 {
569 GSList const *items = selection->itemList();
570 // copy the defs used by all items
571 for (GSList *i = const_cast<GSList *>(items) ; i != NULL ; i = i->next) {
572 _copyUsedDefs(SP_ITEM (i->data));
573 }
575 // copy the representation of the items
576 GSList *sorted_items = g_slist_copy(const_cast<GSList *>(items));
577 sorted_items = g_slist_sort(sorted_items, (GCompareFunc) sp_object_compare_position);
579 for (GSList *i = sorted_items ; i ; i = i->next) {
580 if (!SP_IS_ITEM(i->data)) continue;
581 Inkscape::XML::Node *obj = SP_OBJECT_REPR(i->data);
582 Inkscape::XML::Node *obj_copy = _copyNode(obj, _doc, _root);
584 // copy complete inherited style
585 SPCSSAttr *css = sp_repr_css_attr_inherited(obj, "style");
586 sp_repr_css_set(obj_copy, css, "style");
587 sp_repr_css_attr_unref(css);
589 // write the complete accumulated transform passed to us
590 // (we're dealing with unattached representations, so we write to their attributes
591 // instead of using sp_item_set_transform)
592 gchar *transform_str = sp_svg_transform_write(sp_item_i2doc_affine(SP_ITEM(i->data)));
593 obj_copy->setAttribute("transform", transform_str);
594 g_free(transform_str);
595 }
597 // copy style for Paste Style action
598 if (sorted_items) {
599 if(SP_IS_ITEM(sorted_items->data)) {
600 SPCSSAttr *style = take_style_from_item((SPItem *) sorted_items->data);
601 sp_repr_css_set(_clipnode, style, "style");
602 sp_repr_css_attr_unref(style);
603 }
605 // copy path effect from the first path
606 if (SP_IS_OBJECT(sorted_items->data)) {
607 gchar const *effect = SP_OBJECT_REPR(sorted_items->data)->attribute("inkscape:path-effect");
608 if (effect) {
609 _clipnode->setAttribute("inkscape:path-effect", effect);
610 }
611 }
612 }
614 Geom::OptRect size = selection->bounds();
615 if (size) {
616 sp_repr_set_point(_clipnode, "min", size->min());
617 sp_repr_set_point(_clipnode, "max", size->max());
618 }
620 g_slist_free(sorted_items);
621 }
624 /**
625 * @brief Recursively copy all the definitions used by a given item to the clipboard defs
626 */
627 void ClipboardManagerImpl::_copyUsedDefs(SPItem *item)
628 {
629 // copy fill and stroke styles (patterns and gradients)
630 SPStyle *style = SP_OBJECT_STYLE(item);
632 if (style && (style->fill.isPaintserver())) {
633 SPObject *server = SP_OBJECT_STYLE_FILL_SERVER(item);
634 if (SP_IS_LINEARGRADIENT(server) || SP_IS_RADIALGRADIENT(server))
635 _copyGradient(SP_GRADIENT(server));
636 if (SP_IS_PATTERN(server))
637 _copyPattern(SP_PATTERN(server));
638 }
639 if (style && (style->stroke.isPaintserver())) {
640 SPObject *server = SP_OBJECT_STYLE_STROKE_SERVER(item);
641 if (SP_IS_LINEARGRADIENT(server) || SP_IS_RADIALGRADIENT(server))
642 _copyGradient(SP_GRADIENT(server));
643 if (SP_IS_PATTERN(server))
644 _copyPattern(SP_PATTERN(server));
645 }
647 // For shapes, copy all of the shape's markers
648 if (SP_IS_SHAPE(item)) {
649 SPShape *shape = SP_SHAPE (item);
650 for (int i = 0 ; i < SP_MARKER_LOC_QTY ; i++) {
651 if (shape->marker[i]) {
652 _copyNode(SP_OBJECT_REPR(SP_OBJECT(shape->marker[i])), _doc, _defs);
653 }
654 }
655 }
656 // For lpe items, copy lpe stack if applicable
657 if (SP_IS_LPE_ITEM(item)) {
658 SPLPEItem *lpeitem = SP_LPE_ITEM (item);
659 if (sp_lpe_item_has_path_effect(lpeitem)) {
660 for (PathEffectList::iterator it = lpeitem->path_effect_list->begin(); it != lpeitem->path_effect_list->end(); ++it)
661 {
662 LivePathEffectObject *lpeobj = (*it)->lpeobject;
663 if (lpeobj)
664 _copyNode(SP_OBJECT_REPR(SP_OBJECT(lpeobj)), _doc, _defs);
665 }
666 }
667 }
668 // For 3D boxes, copy perspectives
669 if (SP_IS_BOX3D(item)) {
670 _copyNode(SP_OBJECT_REPR(SP_OBJECT(box3d_get_perspective(SP_BOX3D(item)))), _doc, _defs);
671 }
672 // Copy text paths
673 if (SP_IS_TEXT_TEXTPATH(item)) {
674 _copyTextPath(SP_TEXTPATH(sp_object_first_child(SP_OBJECT(item))));
675 }
676 // Copy clipping objects
677 if (item->clip_ref->getObject()) {
678 _copyNode(SP_OBJECT_REPR(item->clip_ref->getObject()), _doc, _defs);
679 }
680 // Copy mask objects
681 if (item->mask_ref->getObject()) {
682 SPObject *mask = item->mask_ref->getObject();
683 _copyNode(SP_OBJECT_REPR(mask), _doc, _defs);
684 // recurse into the mask for its gradients etc.
685 for (SPObject *o = SP_OBJECT(mask)->children ; o != NULL ; o = o->next) {
686 if (SP_IS_ITEM(o))
687 _copyUsedDefs(SP_ITEM(o));
688 }
689 }
690 // Copy filters
691 if (style->getFilter()) {
692 SPObject *filter = style->getFilter();
693 if (SP_IS_FILTER(filter)) {
694 _copyNode(SP_OBJECT_REPR(filter), _doc, _defs);
695 }
696 }
698 // recurse
699 for (SPObject *o = SP_OBJECT(item)->children ; o != NULL ; o = o->next) {
700 if (SP_IS_ITEM(o))
701 _copyUsedDefs(SP_ITEM(o));
702 }
703 }
706 /**
707 * @brief Copy a single gradient to the clipboard's defs element
708 */
709 void ClipboardManagerImpl::_copyGradient(SPGradient *gradient)
710 {
711 while (gradient) {
712 // climb up the refs, copying each one in the chain
713 _copyNode(SP_OBJECT_REPR(gradient), _doc, _defs);
714 gradient = gradient->ref->getObject();
715 }
716 }
719 /**
720 * @brief Copy a single pattern to the clipboard document's defs element
721 */
722 void ClipboardManagerImpl::_copyPattern(SPPattern *pattern)
723 {
724 // climb up the references, copying each one in the chain
725 while (pattern) {
726 _copyNode(SP_OBJECT_REPR(pattern), _doc, _defs);
728 // items in the pattern may also use gradients and other patterns, so recurse
729 for (SPObject *child = sp_object_first_child(SP_OBJECT(pattern)) ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
730 if (!SP_IS_ITEM (child)) continue;
731 _copyUsedDefs(SP_ITEM(child));
732 }
733 pattern = pattern->ref->getObject();
734 }
735 }
738 /**
739 * @brief Copy a text path to the clipboard's defs element
740 */
741 void ClipboardManagerImpl::_copyTextPath(SPTextPath *tp)
742 {
743 SPItem *path = sp_textpath_get_path_item(tp);
744 if(!path) return;
745 Inkscape::XML::Node *path_node = SP_OBJECT_REPR(path);
747 // Do not copy the text path to defs if it's already copied
748 if(sp_repr_lookup_child(_root, "id", path_node->attribute("id"))) return;
749 _copyNode(path_node, _doc, _defs);
750 }
753 /**
754 * @brief Copy a single XML node from one document to another
755 * @param node The node to be copied
756 * @param target_doc The document to which the node is to be copied
757 * @param parent The node in the target document which will become the parent of the copied node
758 * @return Pointer to the copied node
759 */
760 Inkscape::XML::Node *ClipboardManagerImpl::_copyNode(Inkscape::XML::Node *node, Inkscape::XML::Document *target_doc, Inkscape::XML::Node *parent)
761 {
762 Inkscape::XML::Node *dup = node->duplicate(target_doc);
763 parent->appendChild(dup);
764 Inkscape::GC::release(dup);
765 return dup;
766 }
769 /**
770 * @brief Paste the contents of a document into the active desktop
771 * @param clipdoc The document to paste
772 * @param in_place Whether to paste the selection where it was when copied
773 * @pre @c clipdoc is not empty and items can be added to the current layer
774 */
775 void ClipboardManagerImpl::_pasteDocument(SPDocument *clipdoc, bool in_place)
776 {
777 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
778 SPDocument *target_document = sp_desktop_document(desktop);
779 Inkscape::XML::Node
780 *root = sp_document_repr_root(clipdoc),
781 *target_parent = SP_OBJECT_REPR(desktop->currentLayer());
782 Inkscape::XML::Document *target_xmldoc = sp_document_repr_doc(target_document);
784 // copy definitions
785 _pasteDefs(clipdoc);
787 // copy objects
788 GSList *pasted_objects = NULL;
789 for (Inkscape::XML::Node *obj = root->firstChild() ; obj ; obj = obj->next()) {
790 // Don't copy metadata, defs, named views and internal clipboard contents to the document
791 if (!strcmp(obj->name(), "svg:defs")) continue;
792 if (!strcmp(obj->name(), "svg:metadata")) continue;
793 if (!strcmp(obj->name(), "sodipodi:namedview")) continue;
794 if (!strcmp(obj->name(), "inkscape:clipboard")) continue;
795 Inkscape::XML::Node *obj_copy = _copyNode(obj, target_xmldoc, target_parent);
796 pasted_objects = g_slist_prepend(pasted_objects, (gpointer) obj_copy);
797 }
799 // Change the selection to the freshly pasted objects
800 Inkscape::Selection *selection = sp_desktop_selection(desktop);
801 selection->setReprList(pasted_objects);
803 // invers apply parent transform
804 Geom::Matrix doc2parent = sp_item_i2doc_affine(SP_ITEM(desktop->currentLayer())).inverse();
805 sp_selection_apply_affine(selection, desktop->dt2doc() * doc2parent * desktop->doc2dt(), true, false);
807 // Update (among other things) all curves in paths, for bounds() to work
808 sp_document_ensure_up_to_date(target_document);
810 // move selection either to original position (in_place) or to mouse pointer
811 Geom::OptRect sel_bbox = selection->bounds();
812 if (sel_bbox) {
813 // get offset of selection to original position of copied elements
814 Geom::Point pos_original;
815 Inkscape::XML::Node *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1);
816 if (clipnode) {
817 Geom::Point min, max;
818 sp_repr_get_point(clipnode, "min", &min);
819 sp_repr_get_point(clipnode, "max", &max);
820 pos_original = Geom::Point(min[Geom::X], max[Geom::Y]);
821 }
822 Geom::Point offset = pos_original - sel_bbox->corner(3);
824 if (!in_place) {
825 SnapManager &m = desktop->namedview->snap_manager;
826 m.setup(desktop);
827 sp_event_context_discard_delayed_snap_event(desktop->event_context);
829 // get offset from mouse pointer to bbox center, snap to grid if enabled
830 Geom::Point mouse_offset = desktop->point() - sel_bbox->midpoint();
831 offset = m.multipleOfGridPitch(mouse_offset - offset, sel_bbox->midpoint() + offset) + offset;
832 }
834 sp_selection_move_relative(selection, offset);
835 }
837 g_slist_free(pasted_objects);
838 }
841 /**
842 * @brief Paste SVG defs from the document retrieved from the clipboard into the active document
843 * @param clipdoc The document to paste
844 * @pre @c clipdoc != NULL and pasting into the active document is possible
845 */
846 void ClipboardManagerImpl::_pasteDefs(SPDocument *clipdoc)
847 {
848 // boilerplate vars copied from _pasteDocument
849 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
850 SPDocument *target_document = sp_desktop_document(desktop);
851 Inkscape::XML::Node
852 *root = sp_document_repr_root(clipdoc),
853 *defs = sp_repr_lookup_name(root, "svg:defs", 1),
854 *target_defs = SP_OBJECT_REPR(SP_DOCUMENT_DEFS(target_document));
855 Inkscape::XML::Document *target_xmldoc = sp_document_repr_doc(target_document);
857 prevent_id_clashes(clipdoc, target_document);
859 for (Inkscape::XML::Node *def = defs->firstChild() ; def ; def = def->next()) {
860 _copyNode(def, target_xmldoc, target_defs);
861 }
862 }
865 /**
866 * @brief Retrieve a bitmap image from the clipboard and paste it into the active document
867 */
868 bool ClipboardManagerImpl::_pasteImage()
869 {
870 SPDocument *doc = SP_ACTIVE_DOCUMENT;
871 if ( doc == NULL ) return false;
873 // retrieve image data
874 Glib::RefPtr<Gdk::Pixbuf> img = _clipboard->wait_for_image();
875 if (!img) return false;
877 // AARGH stupid
878 Inkscape::Extension::DB::InputList o;
879 Inkscape::Extension::db.get_input_list(o);
880 Inkscape::Extension::DB::InputList::const_iterator i = o.begin();
881 while (i != o.end() && strcmp( (*i)->get_mimetype(), "image/png" ) != 0) {
882 ++i;
883 }
884 Inkscape::Extension::Extension *png = *i;
885 bool save = png->get_param_bool("link");
886 png->set_param_bool("link", false);
887 png->set_gui(false);
889 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-import", NULL );
890 img->save(filename, "png");
891 file_import(doc, filename, png);
892 g_free(filename);
894 png->set_param_bool("link", save);
895 png->set_gui(true);
897 return true;
898 }
900 /**
901 * @brief Paste text into the selected text object or create a new one to hold it
902 */
903 bool ClipboardManagerImpl::_pasteText()
904 {
905 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
906 if ( desktop == NULL ) return false;
908 // if the text editing tool is active, paste the text into the active text object
909 if (tools_isactive(desktop, TOOLS_TEXT))
910 return sp_text_paste_inline(desktop->event_context);
912 // try to parse the text as a color and, if successful, apply it as the current style
913 SPCSSAttr *css = _parseColor(_clipboard->wait_for_text());
914 if (css) {
915 sp_desktop_set_style(desktop, css);
916 return true;
917 }
919 return false;
920 }
923 /**
924 * @brief Attempt to parse the passed string as a hexadecimal RGB or RGBA color
925 * @param text The Glib::ustring to parse
926 * @return New CSS style representation if the parsing was successful, NULL otherwise
927 */
928 SPCSSAttr *ClipboardManagerImpl::_parseColor(const Glib::ustring &text)
929 {
930 // TODO reuse existing code instead of replicating here.
931 Glib::ustring::size_type len = text.bytes();
932 char *str = const_cast<char *>(text.data());
933 bool attempt_alpha = false;
934 if ( !str || ( *str == '\0' ) ) return NULL; // this is OK due to boolean short-circuit
936 // those conditionals guard against parsing e.g. the string "fab" as "fab000"
937 // (incomplete color) and "45fab71" as "45fab710" (incomplete alpha)
938 if ( *str == '#' ) {
939 if ( len < 7 ) return NULL;
940 if ( len >= 9 ) attempt_alpha = true;
941 } else {
942 if ( len < 6 ) return NULL;
943 if ( len >= 8 ) attempt_alpha = true;
944 }
946 unsigned int color = 0, alpha = 0xff;
948 // skip a leading #, if present
949 if ( *str == '#' ) ++str;
951 // try to parse first 6 digits
952 int res = sscanf(str, "%6x", &color);
953 if ( res && ( res != EOF ) ) {
954 if (attempt_alpha) {// try to parse alpha if there's enough characters
955 sscanf(str + 6, "%2x", &alpha);
956 if ( !res || res == EOF ) alpha = 0xff;
957 }
959 SPCSSAttr *color_css = sp_repr_css_attr_new();
961 // print and set properties
962 gchar color_str[16];
963 g_snprintf(color_str, 16, "#%06x", color);
964 sp_repr_css_set_property(color_css, "fill", color_str);
966 float opacity = static_cast<float>(alpha)/static_cast<float>(0xff);
967 if (opacity > 1.0) opacity = 1.0; // safeguard
968 Inkscape::CSSOStringStream opcss;
969 opcss << opacity;
970 sp_repr_css_set_property(color_css, "fill-opacity", opcss.str().data());
971 return color_css;
972 }
973 return NULL;
974 }
977 /**
978 * @brief Applies a pasted path effect to a given item
979 */
980 void ClipboardManagerImpl::_applyPathEffect(SPItem *item, gchar const *effectstack)
981 {
982 if ( item == NULL ) return;
983 if ( SP_IS_RECT(item) ) return;
985 if (SP_IS_LPE_ITEM(item))
986 {
987 SPLPEItem *lpeitem = SP_LPE_ITEM(item);
988 // for each effect in the stack, check if we need to fork it before adding it to the item
989 std::istringstream iss(effectstack);
990 std::string href;
991 while (std::getline(iss, href, ';'))
992 {
993 SPObject *obj = sp_uri_reference_resolve(_clipboardSPDoc, href.c_str());
994 if (!obj) return;
995 // if the effectstack is not used by anyone, we might as well take it
996 LivePathEffectObject *lpeobj = LIVEPATHEFFECT(obj)->fork_private_if_necessary(1);
997 sp_lpe_item_add_path_effect(lpeitem, lpeobj);
998 }
999 }
1000 }
1003 /**
1004 * @brief Retrieve the clipboard contents as a document
1005 * @return Clipboard contents converted to SPDocument, or NULL if no suitable content was present
1006 */
1007 SPDocument *ClipboardManagerImpl::_retrieveClipboard(Glib::ustring required_target)
1008 {
1009 Glib::ustring best_target;
1010 if ( required_target == "" )
1011 best_target = _getBestTarget();
1012 else
1013 best_target = required_target;
1015 if ( best_target == "" ) {
1016 return NULL;
1017 }
1019 // FIXME: Temporary hack until we add memory input.
1020 // Save the clipboard contents to some file, then read it
1021 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-import", NULL );
1023 bool file_saved = false;
1024 Glib::ustring target = best_target;
1026 #ifdef WIN32
1027 if (best_target == CLIPBOARD_WIN32_EMF_TARGET)
1028 { // Try to save clipboard data as en emf file (using win32 api)
1029 if (OpenClipboard(NULL)) {
1030 HGLOBAL hglb = GetClipboardData(CF_ENHMETAFILE);
1031 if (hglb) {
1032 HENHMETAFILE hemf = CopyEnhMetaFile((HENHMETAFILE) hglb, filename);
1033 if (hemf) {
1034 file_saved = true;
1035 target = CLIPBOARD_WIN32_EMF_MIME;
1036 DeleteEnhMetaFile(hemf);
1037 }
1038 }
1039 CloseClipboard();
1040 }
1041 }
1042 #endif
1044 if (!file_saved) {
1045 if ( !_clipboard->wait_is_target_available(best_target) ) {
1046 return NULL;
1047 }
1049 // doing this synchronously makes better sense
1050 // TODO: use another method because this one is badly broken imo.
1051 // from documentation: "Returns: A SelectionData object, which will be invalid if retrieving the given target failed."
1052 // I don't know how to check whether an object is 'valid' or not, unusable if that's not possible...
1053 Gtk::SelectionData sel = _clipboard->wait_for_contents(best_target);
1054 target = sel.get_target(); // this can crash if the result was invalid of last function. No way to check for this :(
1056 // FIXME: Temporary hack until we add memory input.
1057 // Save the clipboard contents to some file, then read it
1058 g_file_set_contents(filename, (const gchar *) sel.get_data(), sel.get_length(), NULL);
1059 }
1061 // there is no specific plain SVG input extension, so if we can paste the Inkscape SVG format,
1062 // we use the image/svg+xml mimetype to look up the input extension
1063 if(target == "image/x-inkscape-svg")
1064 target = "image/svg+xml";
1066 Inkscape::Extension::DB::InputList inlist;
1067 Inkscape::Extension::db.get_input_list(inlist);
1068 Inkscape::Extension::DB::InputList::const_iterator in = inlist.begin();
1069 for (; in != inlist.end() && target != (*in)->get_mimetype() ; ++in){};
1070 if ( in == inlist.end() )
1071 return NULL; // this shouldn't happen unless _getBestTarget returns something bogus
1073 SPDocument *tempdoc = NULL;
1074 try {
1075 tempdoc = (*in)->open(filename);
1076 } catch (...) {
1077 }
1078 g_unlink(filename);
1079 g_free(filename);
1081 return tempdoc;
1082 }
1085 /**
1086 * @brief Callback called when some other application requests data from Inkscape
1087 *
1088 * Finds a suitable output extension to save the internal clipboard document,
1089 * then saves it to memory and sets the clipboard contents.
1090 */
1091 void ClipboardManagerImpl::_onGet(Gtk::SelectionData &sel, guint /*info*/)
1092 {
1093 g_assert( _clipboardSPDoc != NULL );
1095 Glib::ustring target = sel.get_target();
1096 if(target == "") return; // this shouldn't happen
1098 if (target == CLIPBOARD_TEXT_TARGET) {
1099 target = "image/x-inkscape-svg";
1100 }
1102 Inkscape::Extension::DB::OutputList outlist;
1103 Inkscape::Extension::db.get_output_list(outlist);
1104 Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin();
1105 for ( ; out != outlist.end() && target != (*out)->get_mimetype() ; ++out){};
1106 if ( out == outlist.end() && target != "image/png") return; // this also shouldn't happen
1108 // FIXME: Temporary hack until we add support for memory output.
1109 // Save to a temporary file, read it back and then set the clipboard contents
1110 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-export", NULL );
1111 gsize len; gchar *data;
1113 try {
1114 if (out == outlist.end() && target == "image/png")
1115 {
1116 gdouble dpi = PX_PER_IN;
1117 guint32 bgcolor = 0x00000000;
1119 Geom::Point origin (SP_ROOT(_clipboardSPDoc->root)->x.computed, SP_ROOT(_clipboardSPDoc->root)->y.computed);
1120 Geom::Rect area = Geom::Rect(origin, origin + sp_document_dimensions(_clipboardSPDoc));
1122 unsigned long int width = (unsigned long int) (area.width() * dpi / PX_PER_IN + 0.5);
1123 unsigned long int height = (unsigned long int) (area.height() * dpi / PX_PER_IN + 0.5);
1125 // read from namedview
1126 Inkscape::XML::Node *nv = sp_repr_lookup_name (_clipboardSPDoc->rroot, "sodipodi:namedview");
1127 if (nv && nv->attribute("pagecolor"))
1128 bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00);
1129 if (nv && nv->attribute("inkscape:pageopacity"))
1130 bgcolor |= SP_COLOR_F_TO_U(sp_repr_get_double_attribute (nv, "inkscape:pageopacity", 1.0));
1132 sp_export_png_file(_clipboardSPDoc, filename, area, width, height, dpi, dpi, bgcolor, NULL, NULL, true, NULL);
1133 }
1134 else
1135 {
1136 if (!(*out)->loaded()) {
1137 // Need to load the extension.
1138 (*out)->set_state(Inkscape::Extension::Extension::STATE_LOADED);
1139 }
1140 (*out)->save(_clipboardSPDoc, filename);
1141 }
1142 g_file_get_contents(filename, &data, &len, NULL);
1144 sel.set(8, (guint8 const *) data, len);
1145 } catch (...) {
1146 }
1148 g_unlink(filename); // delete the temporary file
1149 g_free(filename);
1150 }
1153 /**
1154 * @brief Callback when someone else takes the clipboard
1155 *
1156 * When the clipboard owner changes, this callback clears the internal clipboard document
1157 * to reduce memory usage.
1158 */
1159 void ClipboardManagerImpl::_onClear()
1160 {
1161 // why is this called before _onGet???
1162 //_discardInternalClipboard();
1163 }
1166 /**
1167 * @brief Creates an internal clipboard document from scratch
1168 */
1169 void ClipboardManagerImpl::_createInternalClipboard()
1170 {
1171 if ( _clipboardSPDoc == NULL ) {
1172 _clipboardSPDoc = sp_document_new(NULL, false, true);
1173 //g_assert( _clipboardSPDoc != NULL );
1174 _defs = SP_OBJECT_REPR(SP_DOCUMENT_DEFS(_clipboardSPDoc));
1175 _doc = sp_document_repr_doc(_clipboardSPDoc);
1176 _root = sp_document_repr_root(_clipboardSPDoc);
1178 _clipnode = _doc->createElement("inkscape:clipboard");
1179 _root->appendChild(_clipnode);
1180 Inkscape::GC::release(_clipnode);
1182 // once we create a SVG document, style will be stored in it, so flush _text_style
1183 if (_text_style) {
1184 sp_repr_css_attr_unref(_text_style);
1185 _text_style = NULL;
1186 }
1187 }
1188 }
1191 /**
1192 * @brief Deletes the internal clipboard document
1193 */
1194 void ClipboardManagerImpl::_discardInternalClipboard()
1195 {
1196 if ( _clipboardSPDoc != NULL ) {
1197 sp_document_unref(_clipboardSPDoc);
1198 _clipboardSPDoc = NULL;
1199 _defs = NULL;
1200 _doc = NULL;
1201 _root = NULL;
1202 _clipnode = NULL;
1203 }
1204 }
1207 /**
1208 * @brief Get the scale to resize an item, based on the command and desktop state
1209 */
1210 Geom::Scale ClipboardManagerImpl::_getScale(Geom::Point const &min, Geom::Point const &max, Geom::Rect const &obj_rect, bool apply_x, bool apply_y)
1211 {
1212 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1213 double scale_x = 1.0;
1214 double scale_y = 1.0;
1216 if (apply_x) {
1217 scale_x = (max[Geom::X] - min[Geom::X]) / obj_rect[Geom::X].extent();
1218 }
1219 if (apply_y) {
1220 scale_y = (max[Geom::Y] - min[Geom::Y]) / obj_rect[Geom::Y].extent();
1221 }
1222 // If the "lock aspect ratio" button is pressed and we paste only a single coordinate,
1223 // resize the second one by the same ratio too
1224 if (desktop->isToolboxButtonActive("lock")) {
1225 if (apply_x && !apply_y) scale_y = scale_x;
1226 if (apply_y && !apply_x) scale_x = scale_y;
1227 }
1229 return Geom::Scale(scale_x, scale_y);
1230 }
1233 /**
1234 * @brief Find the most suitable clipboard target
1235 */
1236 Glib::ustring ClipboardManagerImpl::_getBestTarget()
1237 {
1238 // GTKmm's wait_for_targets() is broken, see the comment in _inkscape_wait_for_targets()
1239 std::list<Glib::ustring> targets; // = _clipboard->wait_for_targets();
1240 _inkscape_wait_for_targets(targets);
1242 // clipboard target debugging snippet
1243 /*
1244 g_debug("Begin clipboard targets");
1245 for ( std::list<Glib::ustring>::iterator x = targets.begin() ; x != targets.end(); ++x )
1246 g_debug("Clipboard target: %s", (*x).data());
1247 g_debug("End clipboard targets\n");
1248 //*/
1250 for(std::list<Glib::ustring>::iterator i = _preferred_targets.begin() ;
1251 i != _preferred_targets.end() ; ++i)
1252 {
1253 if ( std::find(targets.begin(), targets.end(), *i) != targets.end() )
1254 return *i;
1255 }
1256 #ifdef WIN32
1257 if (OpenClipboard(NULL))
1258 { // If both bitmap and metafile are present, pick the one that was exported first.
1259 UINT format = EnumClipboardFormats(0);
1260 while (format) {
1261 if (format == CF_ENHMETAFILE || format == CF_DIB || format == CF_BITMAP)
1262 break;
1263 format = EnumClipboardFormats(format);
1264 }
1265 CloseClipboard();
1267 if (format == CF_ENHMETAFILE)
1268 return CLIPBOARD_WIN32_EMF_TARGET;
1269 if (format == CF_DIB || format == CF_BITMAP)
1270 return CLIPBOARD_GDK_PIXBUF_TARGET;
1271 }
1273 if (IsClipboardFormatAvailable(CF_ENHMETAFILE))
1274 return CLIPBOARD_WIN32_EMF_TARGET;
1275 #endif
1276 if (_clipboard->wait_is_image_available())
1277 return CLIPBOARD_GDK_PIXBUF_TARGET;
1278 if (_clipboard->wait_is_text_available())
1279 return CLIPBOARD_TEXT_TARGET;
1281 return "";
1282 }
1285 /**
1286 * @brief Set the clipboard targets to reflect the mimetypes Inkscape can output
1287 */
1288 void ClipboardManagerImpl::_setClipboardTargets()
1289 {
1290 Inkscape::Extension::DB::OutputList outlist;
1291 Inkscape::Extension::db.get_output_list(outlist);
1292 std::list<Gtk::TargetEntry> target_list;
1293 bool plaintextSet = false;
1294 for (Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin() ; out != outlist.end() ; ++out) {
1295 if ( !(*out)->deactivated() ) {
1296 Glib::ustring mime = (*out)->get_mimetype();
1297 if (mime != CLIPBOARD_TEXT_TARGET) {
1298 if ( !plaintextSet && (mime.find("svg") == Glib::ustring::npos) ) {
1299 target_list.push_back(Gtk::TargetEntry(CLIPBOARD_TEXT_TARGET));
1300 plaintextSet = true;
1301 }
1302 target_list.push_back(Gtk::TargetEntry(mime));
1303 }
1304 }
1305 }
1307 // Add PNG export explicitly since there is no extension for this...
1308 // On Windows, GTK will also present this as a CF_DIB/CF_BITMAP
1309 target_list.push_back(Gtk::TargetEntry( "image/png" ));
1311 _clipboard->set(target_list,
1312 sigc::mem_fun(*this, &ClipboardManagerImpl::_onGet),
1313 sigc::mem_fun(*this, &ClipboardManagerImpl::_onClear));
1315 #ifdef WIN32
1316 // If the "image/x-emf" target handled by the emf extension would be
1317 // presented as a CF_ENHMETAFILE automatically (just like an "image/bmp"
1318 // is presented as a CF_BITMAP) this code would not be needed.. ???
1319 // Or maybe there is some other way to achieve the same?
1321 // Note: Metafile is the only format that is rendered and stored in clipboard
1322 // on Copy, all other formats are rendered only when needed by a Paste command.
1324 // FIXME: This should at least be rewritten to use "delayed rendering".
1325 // If possible make it delayed rendering by using GTK API only.
1327 if (OpenClipboard(NULL)) {
1328 if ( _clipboardSPDoc != NULL ) {
1329 const Glib::ustring target = CLIPBOARD_WIN32_EMF_MIME;
1331 Inkscape::Extension::DB::OutputList outlist;
1332 Inkscape::Extension::db.get_output_list(outlist);
1333 Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin();
1334 for ( ; out != outlist.end() && target != (*out)->get_mimetype() ; ++out);
1335 if ( out != outlist.end() ) {
1336 // FIXME: Temporary hack until we add support for memory output.
1337 // Save to a temporary file, read it back and then set the clipboard contents
1338 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-export.emf", NULL );
1340 try {
1341 (*out)->save(_clipboardSPDoc, filename);
1342 HENHMETAFILE hemf = GetEnhMetaFileA(filename);
1343 if (hemf) {
1344 SetClipboardData(CF_ENHMETAFILE, hemf);
1345 DeleteEnhMetaFile(hemf);
1346 }
1347 } catch (...) {
1348 }
1349 g_unlink(filename); // delete the temporary file
1350 g_free(filename);
1351 }
1352 }
1353 CloseClipboard();
1354 }
1355 #endif
1356 }
1359 /**
1360 * @brief Set the string representation of a 32-bit RGBA color as the clipboard contents
1361 */
1362 void ClipboardManagerImpl::_setClipboardColor(guint32 color)
1363 {
1364 gchar colorstr[16];
1365 g_snprintf(colorstr, 16, "%08x", color);
1366 _clipboard->set_text(colorstr);
1367 }
1370 /**
1371 * @brief Put a notification on the mesage stack
1372 */
1373 void ClipboardManagerImpl::_userWarn(SPDesktop *desktop, char const *msg)
1374 {
1375 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, msg);
1376 }
1379 // GTKMM's clipboard::wait_for_targets is buggy and might return bogus, see
1380 //
1381 // https://bugs.launchpad.net/inkscape/+bug/296778
1382 // http://mail.gnome.org/archives/gtk-devel-list/2009-June/msg00062.html
1383 //
1384 // for details. Until this has been fixed upstream we will use our own implementation
1385 // of this method, as copied from /gtkmm-2.16.0/gtk/gtkmm/clipboard.cc.
1386 void ClipboardManagerImpl::_inkscape_wait_for_targets(std::list<Glib::ustring> &listTargets)
1387 {
1388 //Get a newly-allocated array of atoms:
1389 GdkAtom* targets = 0;
1390 gint n_targets = 0;
1391 gboolean test = gtk_clipboard_wait_for_targets( gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), &targets, &n_targets );
1392 if(!test)
1393 n_targets = 0; //otherwise it will be -1.
1395 //Add the targets to the C++ container:
1396 for(int i = 0; i < n_targets; i++)
1397 {
1398 //Convert the atom to a string:
1399 gchar* const atom_name = gdk_atom_name(targets[i]);
1401 Glib::ustring target;
1402 if(atom_name)
1403 target = Glib::ScopedPtr<char>(atom_name).get(); //This frees the gchar*.
1405 listTargets.push_back(target);
1406 }
1407 }
1409 /* #######################################
1410 ClipboardManager class
1411 ####################################### */
1413 ClipboardManager *ClipboardManager::_instance = NULL;
1415 ClipboardManager::ClipboardManager() {}
1416 ClipboardManager::~ClipboardManager() {}
1417 ClipboardManager *ClipboardManager::get()
1418 {
1419 if ( _instance == NULL )
1420 _instance = new ClipboardManagerImpl;
1421 return _instance;
1422 }
1424 } // namespace Inkscape
1425 } // namespace IO
1427 /*
1428 Local Variables:
1429 mode:c++
1430 c-file-style:"stroustrup"
1431 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1432 indent-tabs-mode:nil
1433 fill-column:99
1434 End:
1435 */
1436 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :