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 // private properites
152 SPDocument *_clipboardSPDoc; ///< Document that stores the clipboard until someone requests it
153 Inkscape::XML::Node *_defs; ///< Reference to the clipboard document's defs node
154 Inkscape::XML::Node *_root; ///< Reference to the clipboard's root node
155 Inkscape::XML::Node *_clipnode; ///< The node that holds extra information
156 Inkscape::XML::Document *_doc; ///< Reference to the clipboard's Inkscape::XML::Document
158 // we need a way to copy plain text AND remember its style;
159 // the standard _clipnode is only available in an SVG tree, hence this special storage
160 SPCSSAttr *_text_style; ///< Style copied along with plain text fragment
162 Glib::RefPtr<Gtk::Clipboard> _clipboard; ///< Handle to the system wide clipboard - for convenience
163 std::list<Glib::ustring> _preferred_targets; ///< List of supported clipboard targets
164 };
167 ClipboardManagerImpl::ClipboardManagerImpl()
168 : _clipboardSPDoc(NULL),
169 _defs(NULL),
170 _root(NULL),
171 _clipnode(NULL),
172 _doc(NULL),
173 _text_style(NULL),
174 _clipboard( Gtk::Clipboard::get() )
175 {
176 // push supported clipboard targets, in order of preference
177 _preferred_targets.push_back("image/x-inkscape-svg");
178 _preferred_targets.push_back("image/svg+xml");
179 _preferred_targets.push_back("image/svg+xml-compressed");
180 #ifdef WIN32
181 _preferred_targets.push_back(CLIPBOARD_WIN32_EMF_MIME);
182 #endif
183 _preferred_targets.push_back("application/pdf");
184 _preferred_targets.push_back("image/x-adobe-illustrator");
185 }
188 ClipboardManagerImpl::~ClipboardManagerImpl() {}
191 /**
192 * @brief Copy selection contents to the clipboard
193 */
194 void ClipboardManagerImpl::copy()
195 {
196 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
197 if ( desktop == NULL ) return;
198 Inkscape::Selection *selection = sp_desktop_selection(desktop);
200 // Special case for when the gradient dragger is active - copies gradient color
201 if (desktop->event_context->get_drag()) {
202 GrDrag *drag = desktop->event_context->get_drag();
203 if (drag->hasSelection()) {
204 guint32 col = drag->getColor();
206 // set the color as clipboard content (text in RRGGBBAA format)
207 _setClipboardColor(col);
209 // create a style with this color on fill and opacity in master opacity, so it can be
210 // pasted on other stops or objects
211 if (_text_style) {
212 sp_repr_css_attr_unref(_text_style);
213 _text_style = NULL;
214 }
215 _text_style = sp_repr_css_attr_new();
216 // print and set properties
217 gchar color_str[16];
218 g_snprintf(color_str, 16, "#%06x", col >> 8);
219 sp_repr_css_set_property(_text_style, "fill", color_str);
220 float opacity = SP_RGBA32_A_F(col);
221 if (opacity > 1.0) opacity = 1.0; // safeguard
222 Inkscape::CSSOStringStream opcss;
223 opcss << opacity;
224 sp_repr_css_set_property(_text_style, "opacity", opcss.str().data());
226 _discardInternalClipboard();
227 return;
228 }
229 }
231 // Special case for when the color picker ("dropper") is active - copies color under cursor
232 if (tools_isactive(desktop, TOOLS_DROPPER)) {
233 _setClipboardColor(sp_dropper_context_get_color(desktop->event_context));
234 _discardInternalClipboard();
235 return;
236 }
238 // Special case for when the text tool is active - if some text is selected, copy plain text,
239 // not the object that holds it; also copy the style at cursor into
240 if (tools_isactive(desktop, TOOLS_TEXT)) {
241 _discardInternalClipboard();
242 Glib::ustring selected_text = sp_text_get_selected_text(desktop->event_context);
243 if (!selected_text.empty()) {
244 _clipboard->set_text(selected_text);
245 }
246 if (_text_style) {
247 sp_repr_css_attr_unref(_text_style);
248 _text_style = NULL;
249 }
250 _text_style = sp_text_get_style_at_cursor(desktop->event_context);
251 return;
252 }
254 if (selection->isEmpty()) { // check whether something is selected
255 _userWarn(desktop, _("Nothing was copied."));
256 return;
257 }
258 _discardInternalClipboard();
260 _createInternalClipboard(); // construct a new clipboard document
261 _copySelection(selection); // copy all items in the selection to the internal clipboard
262 fit_canvas_to_drawing(_clipboardSPDoc);
264 _setClipboardTargets();
265 }
268 /**
269 * @brief Copy a Live Path Effect path parameter to the clipboard
270 * @param pp The path parameter to store in the clipboard
271 */
272 void ClipboardManagerImpl::copyPathParameter(Inkscape::LivePathEffect::PathParam *pp)
273 {
274 if ( pp == NULL ) return;
275 gchar *svgd = sp_svg_write_path( pp->get_pathvector() );
276 if ( svgd == NULL || *svgd == '\0' ) return;
278 _discardInternalClipboard();
279 _createInternalClipboard();
281 Inkscape::XML::Node *pathnode = _doc->createElement("svg:path");
282 pathnode->setAttribute("d", svgd);
283 g_free(svgd);
284 _root->appendChild(pathnode);
285 Inkscape::GC::release(pathnode);
287 fit_canvas_to_drawing(_clipboardSPDoc);
288 _setClipboardTargets();
289 }
291 /**
292 * @brief Paste from the system clipboard into the active desktop
293 * @param in_place Whether to put the contents where they were when copied
294 */
295 bool ClipboardManagerImpl::paste(bool in_place)
296 {
297 // do any checking whether we really are able to paste before requesting the contents
298 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
299 if ( desktop == NULL ) return false;
300 if ( Inkscape::have_viable_layer(desktop, desktop->messageStack()) == false ) return false;
302 Glib::ustring target = _getBestTarget();
304 // Special cases of clipboard content handling go here
305 // Note that target priority is determined in _getBestTarget.
306 // TODO: Handle x-special/gnome-copied-files and text/uri-list to support pasting files
308 // if there is an image on the clipboard, paste it
309 if ( target == CLIPBOARD_GDK_PIXBUF_TARGET ) return _pasteImage();
310 // if there's only text, paste it into a selected text object or create a new one
311 if ( target == CLIPBOARD_TEXT_TARGET ) return _pasteText();
313 // otherwise, use the import extensions
314 SPDocument *tempdoc = _retrieveClipboard(target);
315 if ( tempdoc == NULL ) {
316 _userWarn(desktop, _("Nothing on the clipboard."));
317 return false;
318 }
320 _pasteDocument(tempdoc, in_place);
321 sp_document_unref(tempdoc);
323 return true;
324 }
326 /**
327 * @brief Returns the id of the first visible copied object
328 */
329 const gchar *ClipboardManagerImpl::getFirstObjectID()
330 {
331 SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg");
332 if ( tempdoc == NULL ) {
333 return NULL;
334 }
336 Inkscape::XML::Node
337 *root = sp_document_repr_root(tempdoc);
339 if (!root)
340 return NULL;
342 Inkscape::XML::Node *ch = sp_repr_children(root);
343 while (ch != NULL &&
344 strcmp(ch->name(), "svg:g") &&
345 strcmp(ch->name(), "svg:path") &&
346 strcmp(ch->name(), "svg:use") &&
347 strcmp(ch->name(), "svg:text") &&
348 strcmp(ch->name(), "svg:image") &&
349 strcmp(ch->name(), "svg:rect")
350 )
351 ch = ch->next();
353 if (ch) {
354 return ch->attribute("id");
355 }
357 return NULL;
358 }
361 /**
362 * @brief Implements the Paste Style action
363 */
364 bool ClipboardManagerImpl::pasteStyle()
365 {
366 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
367 if (desktop == NULL) return false;
369 // check whether something is selected
370 Inkscape::Selection *selection = sp_desktop_selection(desktop);
371 if (selection->isEmpty()) {
372 _userWarn(desktop, _("Select <b>object(s)</b> to paste style to."));
373 return false;
374 }
376 SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg");
377 if ( tempdoc == NULL ) {
378 // no document, but we can try _text_style
379 if (_text_style) {
380 sp_desktop_set_style(desktop, _text_style);
381 return true;
382 } else {
383 _userWarn(desktop, _("No style on the clipboard."));
384 return false;
385 }
386 }
388 Inkscape::XML::Node
389 *root = sp_document_repr_root(tempdoc),
390 *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1);
392 bool pasted = false;
394 if (clipnode) {
395 _pasteDefs(tempdoc);
396 SPCSSAttr *style = sp_repr_css_attr(clipnode, "style");
397 sp_desktop_set_style(desktop, style);
398 pasted = true;
399 }
400 else {
401 _userWarn(desktop, _("No style on the clipboard."));
402 }
404 sp_document_unref(tempdoc);
405 return pasted;
406 }
409 /**
410 * @brief Resize the selection or each object in the selection to match the clipboard's size
411 * @param separately Whether to scale each object in the selection separately
412 * @param apply_x Whether to scale the width of objects / selection
413 * @param apply_y Whether to scale the height of objects / selection
414 */
415 bool ClipboardManagerImpl::pasteSize(bool separately, bool apply_x, bool apply_y)
416 {
417 if(!apply_x && !apply_y) return false; // pointless parameters
419 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
420 if ( desktop == NULL ) return false;
421 Inkscape::Selection *selection = sp_desktop_selection(desktop);
422 if (selection->isEmpty()) {
423 _userWarn(desktop, _("Select <b>object(s)</b> to paste size to."));
424 return false;
425 }
427 // FIXME: actually, this should accept arbitrary documents
428 SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg");
429 if ( tempdoc == NULL ) {
430 _userWarn(desktop, _("No size on the clipboard."));
431 return false;
432 }
434 // retrieve size ifomration from the clipboard
435 Inkscape::XML::Node *root = sp_document_repr_root(tempdoc);
436 Inkscape::XML::Node *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1);
437 bool pasted = false;
438 if (clipnode) {
439 Geom::Point min, max;
440 sp_repr_get_point(clipnode, "min", &min);
441 sp_repr_get_point(clipnode, "max", &max);
443 // resize each object in the selection
444 if (separately) {
445 for (GSList *i = const_cast<GSList*>(selection->itemList()) ; i ; i = i->next) {
446 SPItem *item = SP_ITEM(i->data);
447 Geom::OptRect obj_size = sp_item_bbox_desktop(item);
448 if ( !obj_size ) continue;
449 sp_item_scale_rel(item, _getScale(min, max, *obj_size, apply_x, apply_y));
450 }
451 }
452 // resize the selection as a whole
453 else {
454 Geom::OptRect sel_size = selection->bounds();
455 if ( sel_size ) {
456 sp_selection_scale_relative(selection, sel_size->midpoint(),
457 _getScale(min, max, *sel_size, apply_x, apply_y));
458 }
459 }
460 pasted = true;
461 }
462 sp_document_unref(tempdoc);
463 return pasted;
464 }
467 /**
468 * @brief Applies a path effect from the clipboard to the selected path
469 */
470 bool ClipboardManagerImpl::pastePathEffect()
471 {
472 /** @todo FIXME: pastePathEffect crashes when moving the path with the applied effect,
473 segfaulting in fork_private_if_necessary(). */
475 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
476 if ( desktop == NULL )
477 return false;
479 Inkscape::Selection *selection = sp_desktop_selection(desktop);
480 if (selection && selection->isEmpty()) {
481 _userWarn(desktop, _("Select <b>object(s)</b> to paste live path effect to."));
482 return false;
483 }
485 SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg");
486 if ( tempdoc ) {
487 Inkscape::XML::Node *root = sp_document_repr_root(tempdoc);
488 Inkscape::XML::Node *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1);
489 if ( clipnode ) {
490 gchar const *effect = clipnode->attribute("inkscape:path-effect");
491 if ( effect ) {
492 _pasteDefs(tempdoc);
493 // make sure all selected items are converted to paths first (i.e. rectangles)
494 sp_selected_path_to_curves(desktop, false);
495 for (GSList *item = const_cast<GSList *>(selection->itemList()) ; item ; item = item->next) {
496 _applyPathEffect(reinterpret_cast<SPItem*>(item->data), effect);
497 }
499 return true;
500 }
501 }
502 }
504 // no_effect:
505 _userWarn(desktop, _("No effect on the clipboard."));
506 return false;
507 }
510 /**
511 * @brief Get LPE path data from the clipboard
512 * @return The retrieved path data (contents of the d attribute), or "" if no path was found
513 */
514 Glib::ustring ClipboardManagerImpl::getPathParameter()
515 {
516 SPDocument *tempdoc = _retrieveClipboard(); // any target will do here
517 if ( tempdoc == NULL ) {
518 _userWarn(SP_ACTIVE_DESKTOP, _("Nothing on the clipboard."));
519 return "";
520 }
521 Inkscape::XML::Node
522 *root = sp_document_repr_root(tempdoc),
523 *path = sp_repr_lookup_name(root, "svg:path", -1); // unlimited search depth
524 if ( path == NULL ) {
525 _userWarn(SP_ACTIVE_DESKTOP, _("Clipboard does not contain a path."));
526 sp_document_unref(tempdoc);
527 return "";
528 }
529 gchar const *svgd = path->attribute("d");
530 return svgd;
531 }
534 /**
535 * @brief Get object id of a shape or text item from the clipboard
536 * @return The retrieved id string (contents of the id attribute), or "" if no shape or text item was found
537 */
538 Glib::ustring ClipboardManagerImpl::getShapeOrTextObjectId()
539 {
540 SPDocument *tempdoc = _retrieveClipboard(); // any target will do here
541 if ( tempdoc == NULL ) {
542 _userWarn(SP_ACTIVE_DESKTOP, _("Nothing on the clipboard."));
543 return "";
544 }
545 Inkscape::XML::Node *root = sp_document_repr_root(tempdoc);
547 Inkscape::XML::Node *repr = sp_repr_lookup_name(root, "svg:path", -1); // unlimited search depth
548 if ( repr == NULL )
549 repr = sp_repr_lookup_name(root, "svg:text", -1);
551 if ( repr == NULL ) {
552 _userWarn(SP_ACTIVE_DESKTOP, _("Clipboard does not contain a path."));
553 sp_document_unref(tempdoc);
554 return "";
555 }
556 gchar const *svgd = repr->attribute("id");
557 return svgd;
558 }
561 /**
562 * @brief Iterate over a list of items and copy them to the clipboard.
563 */
564 void ClipboardManagerImpl::_copySelection(Inkscape::Selection *selection)
565 {
566 GSList const *items = selection->itemList();
567 // copy the defs used by all items
568 for (GSList *i = const_cast<GSList *>(items) ; i != NULL ; i = i->next) {
569 _copyUsedDefs(SP_ITEM (i->data));
570 }
572 // copy the representation of the items
573 GSList *sorted_items = g_slist_copy(const_cast<GSList *>(items));
574 sorted_items = g_slist_sort(sorted_items, (GCompareFunc) sp_object_compare_position);
576 for (GSList *i = sorted_items ; i ; i = i->next) {
577 if (!SP_IS_ITEM(i->data)) continue;
578 Inkscape::XML::Node *obj = SP_OBJECT_REPR(i->data);
579 Inkscape::XML::Node *obj_copy = _copyNode(obj, _doc, _root);
581 // copy complete inherited style
582 SPCSSAttr *css = sp_repr_css_attr_inherited(obj, "style");
583 sp_repr_css_set(obj_copy, css, "style");
584 sp_repr_css_attr_unref(css);
586 // write the complete accumulated transform passed to us
587 // (we're dealing with unattached representations, so we write to their attributes
588 // instead of using sp_item_set_transform)
589 gchar *transform_str = sp_svg_transform_write(sp_item_i2doc_affine(SP_ITEM(i->data)));
590 obj_copy->setAttribute("transform", transform_str);
591 g_free(transform_str);
592 }
594 // copy style for Paste Style action
595 if (sorted_items) {
596 if(SP_IS_ITEM(sorted_items->data)) {
597 SPCSSAttr *style = take_style_from_item((SPItem *) sorted_items->data);
598 sp_repr_css_set(_clipnode, style, "style");
599 sp_repr_css_attr_unref(style);
600 }
602 // copy path effect from the first path
603 if (SP_IS_OBJECT(sorted_items->data)) {
604 gchar const *effect = SP_OBJECT_REPR(sorted_items->data)->attribute("inkscape:path-effect");
605 if (effect) {
606 _clipnode->setAttribute("inkscape:path-effect", effect);
607 }
608 }
609 }
611 Geom::OptRect size = selection->bounds();
612 if (size) {
613 sp_repr_set_point(_clipnode, "min", size->min());
614 sp_repr_set_point(_clipnode, "max", size->max());
615 }
617 g_slist_free(sorted_items);
618 }
621 /**
622 * @brief Recursively copy all the definitions used by a given item to the clipboard defs
623 */
624 void ClipboardManagerImpl::_copyUsedDefs(SPItem *item)
625 {
626 // copy fill and stroke styles (patterns and gradients)
627 SPStyle *style = SP_OBJECT_STYLE(item);
629 if (style && (style->fill.isPaintserver())) {
630 SPObject *server = SP_OBJECT_STYLE_FILL_SERVER(item);
631 if (SP_IS_LINEARGRADIENT(server) || SP_IS_RADIALGRADIENT(server))
632 _copyGradient(SP_GRADIENT(server));
633 if (SP_IS_PATTERN(server))
634 _copyPattern(SP_PATTERN(server));
635 }
636 if (style && (style->stroke.isPaintserver())) {
637 SPObject *server = SP_OBJECT_STYLE_STROKE_SERVER(item);
638 if (SP_IS_LINEARGRADIENT(server) || SP_IS_RADIALGRADIENT(server))
639 _copyGradient(SP_GRADIENT(server));
640 if (SP_IS_PATTERN(server))
641 _copyPattern(SP_PATTERN(server));
642 }
644 // For shapes, copy all of the shape's markers
645 if (SP_IS_SHAPE(item)) {
646 SPShape *shape = SP_SHAPE (item);
647 for (int i = 0 ; i < SP_MARKER_LOC_QTY ; i++) {
648 if (shape->marker[i]) {
649 _copyNode(SP_OBJECT_REPR(SP_OBJECT(shape->marker[i])), _doc, _defs);
650 }
651 }
652 }
653 // For lpe items, copy lpe stack if applicable
654 if (SP_IS_LPE_ITEM(item)) {
655 SPLPEItem *lpeitem = SP_LPE_ITEM (item);
656 if (sp_lpe_item_has_path_effect(lpeitem)) {
657 for (PathEffectList::iterator it = lpeitem->path_effect_list->begin(); it != lpeitem->path_effect_list->end(); ++it)
658 {
659 LivePathEffectObject *lpeobj = (*it)->lpeobject;
660 if (lpeobj)
661 _copyNode(SP_OBJECT_REPR(SP_OBJECT(lpeobj)), _doc, _defs);
662 }
663 }
664 }
665 // For 3D boxes, copy perspectives
666 if (SP_IS_BOX3D(item)) {
667 _copyNode(SP_OBJECT_REPR(SP_OBJECT(box3d_get_perspective(SP_BOX3D(item)))), _doc, _defs);
668 }
669 // Copy text paths
670 if (SP_IS_TEXT_TEXTPATH(item)) {
671 _copyTextPath(SP_TEXTPATH(sp_object_first_child(SP_OBJECT(item))));
672 }
673 // Copy clipping objects
674 if (item->clip_ref->getObject()) {
675 _copyNode(SP_OBJECT_REPR(item->clip_ref->getObject()), _doc, _defs);
676 }
677 // Copy mask objects
678 if (item->mask_ref->getObject()) {
679 SPObject *mask = item->mask_ref->getObject();
680 _copyNode(SP_OBJECT_REPR(mask), _doc, _defs);
681 // recurse into the mask for its gradients etc.
682 for (SPObject *o = SP_OBJECT(mask)->children ; o != NULL ; o = o->next) {
683 if (SP_IS_ITEM(o))
684 _copyUsedDefs(SP_ITEM(o));
685 }
686 }
687 // Copy filters
688 if (style->getFilter()) {
689 SPObject *filter = style->getFilter();
690 if (SP_IS_FILTER(filter)) {
691 _copyNode(SP_OBJECT_REPR(filter), _doc, _defs);
692 }
693 }
695 // recurse
696 for (SPObject *o = SP_OBJECT(item)->children ; o != NULL ; o = o->next) {
697 if (SP_IS_ITEM(o))
698 _copyUsedDefs(SP_ITEM(o));
699 }
700 }
703 /**
704 * @brief Copy a single gradient to the clipboard's defs element
705 */
706 void ClipboardManagerImpl::_copyGradient(SPGradient *gradient)
707 {
708 while (gradient) {
709 // climb up the refs, copying each one in the chain
710 _copyNode(SP_OBJECT_REPR(gradient), _doc, _defs);
711 gradient = gradient->ref->getObject();
712 }
713 }
716 /**
717 * @brief Copy a single pattern to the clipboard document's defs element
718 */
719 void ClipboardManagerImpl::_copyPattern(SPPattern *pattern)
720 {
721 // climb up the references, copying each one in the chain
722 while (pattern) {
723 _copyNode(SP_OBJECT_REPR(pattern), _doc, _defs);
725 // items in the pattern may also use gradients and other patterns, so recurse
726 for (SPObject *child = sp_object_first_child(SP_OBJECT(pattern)) ; child != NULL ; child = SP_OBJECT_NEXT(child) ) {
727 if (!SP_IS_ITEM (child)) continue;
728 _copyUsedDefs(SP_ITEM(child));
729 }
730 pattern = pattern->ref->getObject();
731 }
732 }
735 /**
736 * @brief Copy a text path to the clipboard's defs element
737 */
738 void ClipboardManagerImpl::_copyTextPath(SPTextPath *tp)
739 {
740 SPItem *path = sp_textpath_get_path_item(tp);
741 if(!path) return;
742 Inkscape::XML::Node *path_node = SP_OBJECT_REPR(path);
744 // Do not copy the text path to defs if it's already copied
745 if(sp_repr_lookup_child(_root, "id", path_node->attribute("id"))) return;
746 _copyNode(path_node, _doc, _defs);
747 }
750 /**
751 * @brief Copy a single XML node from one document to another
752 * @param node The node to be copied
753 * @param target_doc The document to which the node is to be copied
754 * @param parent The node in the target document which will become the parent of the copied node
755 * @return Pointer to the copied node
756 */
757 Inkscape::XML::Node *ClipboardManagerImpl::_copyNode(Inkscape::XML::Node *node, Inkscape::XML::Document *target_doc, Inkscape::XML::Node *parent)
758 {
759 Inkscape::XML::Node *dup = node->duplicate(target_doc);
760 parent->appendChild(dup);
761 Inkscape::GC::release(dup);
762 return dup;
763 }
766 /**
767 * @brief Paste the contents of a document into the active desktop
768 * @param clipdoc The document to paste
769 * @param in_place Whether to paste the selection where it was when copied
770 * @pre @c clipdoc is not empty and items can be added to the current layer
771 */
772 void ClipboardManagerImpl::_pasteDocument(SPDocument *clipdoc, bool in_place)
773 {
774 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
775 SPDocument *target_document = sp_desktop_document(desktop);
776 Inkscape::XML::Node
777 *root = sp_document_repr_root(clipdoc),
778 *target_parent = SP_OBJECT_REPR(desktop->currentLayer());
779 Inkscape::XML::Document *target_xmldoc = sp_document_repr_doc(target_document);
781 // copy definitions
782 _pasteDefs(clipdoc);
784 // copy objects
785 GSList *pasted_objects = NULL;
786 for (Inkscape::XML::Node *obj = root->firstChild() ; obj ; obj = obj->next()) {
787 // Don't copy metadata, defs, named views and internal clipboard contents to the document
788 if (!strcmp(obj->name(), "svg:defs")) continue;
789 if (!strcmp(obj->name(), "svg:metadata")) continue;
790 if (!strcmp(obj->name(), "sodipodi:namedview")) continue;
791 if (!strcmp(obj->name(), "inkscape:clipboard")) continue;
792 Inkscape::XML::Node *obj_copy = _copyNode(obj, target_xmldoc, target_parent);
793 pasted_objects = g_slist_prepend(pasted_objects, (gpointer) obj_copy);
794 }
796 // Change the selection to the freshly pasted objects
797 Inkscape::Selection *selection = sp_desktop_selection(desktop);
798 selection->setReprList(pasted_objects);
800 // invers apply parent transform
801 Geom::Matrix doc2parent = sp_item_i2doc_affine(SP_ITEM(desktop->currentLayer())).inverse();
802 sp_selection_apply_affine(selection, desktop->dt2doc() * doc2parent * desktop->doc2dt(), true, false);
804 // Update (among other things) all curves in paths, for bounds() to work
805 sp_document_ensure_up_to_date(target_document);
807 // move selection either to original position (in_place) or to mouse pointer
808 Geom::OptRect sel_bbox = selection->bounds();
809 if (sel_bbox) {
810 // get offset of selection to original position of copied elements
811 Geom::Point pos_original;
812 Inkscape::XML::Node *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1);
813 if (clipnode) {
814 Geom::Point min, max;
815 sp_repr_get_point(clipnode, "min", &min);
816 sp_repr_get_point(clipnode, "max", &max);
817 pos_original = Geom::Point(min[Geom::X], max[Geom::Y]);
818 }
819 Geom::Point offset = pos_original - sel_bbox->corner(3);
821 if (!in_place) {
822 SnapManager &m = desktop->namedview->snap_manager;
823 m.setup(desktop, false); // Don't display the snapindicator
825 // get offset from mouse pointer to bbox center, snap to grid if enabled
826 Geom::Point mouse_offset = desktop->point() - sel_bbox->midpoint();
827 offset = m.multipleOfGridPitch(mouse_offset - offset) + offset;
828 }
830 sp_selection_move_relative(selection, offset);
831 }
833 g_slist_free(pasted_objects);
834 }
837 /**
838 * @brief Paste SVG defs from the document retrieved from the clipboard into the active document
839 * @param clipdoc The document to paste
840 * @pre @c clipdoc != NULL and pasting into the active document is possible
841 */
842 void ClipboardManagerImpl::_pasteDefs(SPDocument *clipdoc)
843 {
844 // boilerplate vars copied from _pasteDocument
845 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
846 SPDocument *target_document = sp_desktop_document(desktop);
847 Inkscape::XML::Node
848 *root = sp_document_repr_root(clipdoc),
849 *defs = sp_repr_lookup_name(root, "svg:defs", 1),
850 *target_defs = SP_OBJECT_REPR(SP_DOCUMENT_DEFS(target_document));
851 Inkscape::XML::Document *target_xmldoc = sp_document_repr_doc(target_document);
853 prevent_id_clashes(clipdoc, target_document);
855 for (Inkscape::XML::Node *def = defs->firstChild() ; def ; def = def->next()) {
856 _copyNode(def, target_xmldoc, target_defs);
857 }
858 }
861 /**
862 * @brief Retrieve a bitmap image from the clipboard and paste it into the active document
863 */
864 bool ClipboardManagerImpl::_pasteImage()
865 {
866 SPDocument *doc = SP_ACTIVE_DOCUMENT;
867 if ( doc == NULL ) return false;
869 // retrieve image data
870 Glib::RefPtr<Gdk::Pixbuf> img = _clipboard->wait_for_image();
871 if (!img) return false;
873 // Very stupid hack: Write into a file, then import the file into the document.
874 // To avoid using tmpfile and POSIX file handles, make the filename based on current time.
875 // This wasn't my idea, I just copied this from selection-chemistry.cpp
876 // and just can't think of something saner at the moment. Pasting more than
877 // one image per second will overwrite the image.
878 // However, I don't think anyone is able to copy a _different_ image into inkscape
879 // in 1 second.
880 time_t rawtime;
881 char image_filename[128];
883 time(&rawtime);
884 strftime(image_filename, 128, "inkscape_pasted_image_%Y%m%d_%H%M%S.png", localtime( &rawtime ));
885 /// @todo Check whether the encoding is correct here
886 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
887 std::string save_folder = Glib::filename_from_utf8(prefs->getString("/dialogs/save_as/path"));
889 gchar *image_path = g_build_filename(save_folder.data(), image_filename, NULL);
890 img->save(image_path, "png");
891 file_import(doc, image_path, NULL);
892 g_free(image_path);
894 return true;
895 }
897 /**
898 * @brief Paste text into the selected text object or create a new one to hold it
899 */
900 bool ClipboardManagerImpl::_pasteText()
901 {
902 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
903 if ( desktop == NULL ) return false;
905 // if the text editing tool is active, paste the text into the active text object
906 if (tools_isactive(desktop, TOOLS_TEXT))
907 return sp_text_paste_inline(desktop->event_context);
909 // try to parse the text as a color and, if successful, apply it as the current style
910 SPCSSAttr *css = _parseColor(_clipboard->wait_for_text());
911 if (css) {
912 sp_desktop_set_style(desktop, css);
913 return true;
914 }
916 return false;
917 }
920 /**
921 * @brief Attempt to parse the passed string as a hexadecimal RGB or RGBA color
922 * @param text The Glib::ustring to parse
923 * @return New CSS style representation if the parsing was successful, NULL otherwise
924 */
925 SPCSSAttr *ClipboardManagerImpl::_parseColor(const Glib::ustring &text)
926 {
927 // TODO reuse existing code instead of replicating here.
928 Glib::ustring::size_type len = text.bytes();
929 char *str = const_cast<char *>(text.data());
930 bool attempt_alpha = false;
931 if ( !str || ( *str == '\0' ) ) return NULL; // this is OK due to boolean short-circuit
933 // those conditionals guard against parsing e.g. the string "fab" as "fab000"
934 // (incomplete color) and "45fab71" as "45fab710" (incomplete alpha)
935 if ( *str == '#' ) {
936 if ( len < 7 ) return NULL;
937 if ( len >= 9 ) attempt_alpha = true;
938 } else {
939 if ( len < 6 ) return NULL;
940 if ( len >= 8 ) attempt_alpha = true;
941 }
943 unsigned int color = 0, alpha = 0xff;
945 // skip a leading #, if present
946 if ( *str == '#' ) ++str;
948 // try to parse first 6 digits
949 int res = sscanf(str, "%6x", &color);
950 if ( res && ( res != EOF ) ) {
951 if (attempt_alpha) {// try to parse alpha if there's enough characters
952 sscanf(str + 6, "%2x", &alpha);
953 if ( !res || res == EOF ) alpha = 0xff;
954 }
956 SPCSSAttr *color_css = sp_repr_css_attr_new();
958 // print and set properties
959 gchar color_str[16];
960 g_snprintf(color_str, 16, "#%06x", color);
961 sp_repr_css_set_property(color_css, "fill", color_str);
963 float opacity = static_cast<float>(alpha)/static_cast<float>(0xff);
964 if (opacity > 1.0) opacity = 1.0; // safeguard
965 Inkscape::CSSOStringStream opcss;
966 opcss << opacity;
967 sp_repr_css_set_property(color_css, "fill-opacity", opcss.str().data());
968 return color_css;
969 }
970 return NULL;
971 }
974 /**
975 * @brief Applies a pasted path effect to a given item
976 */
977 void ClipboardManagerImpl::_applyPathEffect(SPItem *item, gchar const *effect)
978 {
979 if ( item == NULL ) return;
980 if ( SP_IS_RECT(item) ) return;
982 if (SP_IS_LPE_ITEM(item))
983 {
984 SPLPEItem *lpeitem = SP_LPE_ITEM(item);
985 SPObject *obj = sp_uri_reference_resolve(_clipboardSPDoc, effect);
986 if (!obj) return;
987 // if the effect is not used by anyone, we might as well take it
988 LivePathEffectObject *lpeobj = LIVEPATHEFFECT(obj)->fork_private_if_necessary(1);
989 sp_lpe_item_add_path_effect(lpeitem, lpeobj);
990 }
991 }
994 /**
995 * @brief Retrieve the clipboard contents as a document
996 * @return Clipboard contents converted to SPDocument, or NULL if no suitable content was present
997 */
998 SPDocument *ClipboardManagerImpl::_retrieveClipboard(Glib::ustring required_target)
999 {
1000 Glib::ustring best_target;
1001 if ( required_target == "" )
1002 best_target = _getBestTarget();
1003 else
1004 best_target = required_target;
1006 if ( best_target == "" ) {
1007 return NULL;
1008 }
1010 // FIXME: Temporary hack until we add memory input.
1011 // Save the clipboard contents to some file, then read it
1012 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-import", NULL );
1014 bool file_saved = false;
1015 Glib::ustring target = best_target;
1017 #ifdef WIN32
1018 if (best_target == CLIPBOARD_WIN32_EMF_TARGET)
1019 { // Try to save clipboard data as en emf file (using win32 api)
1020 if (OpenClipboard(NULL)) {
1021 HGLOBAL hglb = GetClipboardData(CF_ENHMETAFILE);
1022 if (hglb) {
1023 HENHMETAFILE hemf = CopyEnhMetaFile((HENHMETAFILE) hglb, filename);
1024 if (hemf) {
1025 file_saved = true;
1026 target = CLIPBOARD_WIN32_EMF_MIME;
1027 DeleteEnhMetaFile(hemf);
1028 }
1029 }
1030 CloseClipboard();
1031 }
1032 }
1033 #endif
1035 if (!file_saved) {
1036 if ( !_clipboard->wait_is_target_available(best_target) ) {
1037 return NULL;
1038 }
1040 // doing this synchronously makes better sense
1041 // TODO: use another method because this one is badly broken imo.
1042 // from documentation: "Returns: A SelectionData object, which will be invalid if retrieving the given target failed."
1043 // I don't know how to check whether an object is 'valid' or not, unusable if that's not possible...
1044 Gtk::SelectionData sel = _clipboard->wait_for_contents(best_target);
1045 target = sel.get_target(); // this can crash if the result was invalid of last function. No way to check for this :(
1047 // FIXME: Temporary hack until we add memory input.
1048 // Save the clipboard contents to some file, then read it
1049 g_file_set_contents(filename, (const gchar *) sel.get_data(), sel.get_length(), NULL);
1050 }
1052 // there is no specific plain SVG input extension, so if we can paste the Inkscape SVG format,
1053 // we use the image/svg+xml mimetype to look up the input extension
1054 if(target == "image/x-inkscape-svg")
1055 target = "image/svg+xml";
1057 Inkscape::Extension::DB::InputList inlist;
1058 Inkscape::Extension::db.get_input_list(inlist);
1059 Inkscape::Extension::DB::InputList::const_iterator in = inlist.begin();
1060 for (; in != inlist.end() && target != (*in)->get_mimetype() ; ++in){};
1061 if ( in == inlist.end() )
1062 return NULL; // this shouldn't happen unless _getBestTarget returns something bogus
1064 SPDocument *tempdoc = NULL;
1065 try {
1066 tempdoc = (*in)->open(filename);
1067 } catch (...) {
1068 }
1069 g_unlink(filename);
1070 g_free(filename);
1072 return tempdoc;
1073 }
1076 /**
1077 * @brief Callback called when some other application requests data from Inkscape
1078 *
1079 * Finds a suitable output extension to save the internal clipboard document,
1080 * then saves it to memory and sets the clipboard contents.
1081 */
1082 void ClipboardManagerImpl::_onGet(Gtk::SelectionData &sel, guint /*info*/)
1083 {
1084 g_assert( _clipboardSPDoc != NULL );
1086 Glib::ustring target = sel.get_target();
1087 if(target == "") return; // this shouldn't happen
1089 if (target == CLIPBOARD_TEXT_TARGET) {
1090 target = "image/x-inkscape-svg";
1091 }
1093 Inkscape::Extension::DB::OutputList outlist;
1094 Inkscape::Extension::db.get_output_list(outlist);
1095 Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin();
1096 for ( ; out != outlist.end() && target != (*out)->get_mimetype() ; ++out){};
1097 if ( out == outlist.end() && target != "image/png") return; // this also shouldn't happen
1099 // FIXME: Temporary hack until we add support for memory output.
1100 // Save to a temporary file, read it back and then set the clipboard contents
1101 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-export", NULL );
1102 gsize len; gchar *data;
1104 try {
1105 if (out == outlist.end() && target == "image/png")
1106 {
1107 gdouble dpi = PX_PER_IN;
1108 guint32 bgcolor = 0x00000000;
1110 Geom::Point origin (SP_ROOT(_clipboardSPDoc->root)->x.computed, SP_ROOT(_clipboardSPDoc->root)->y.computed);
1111 Geom::Rect area = Geom::Rect(origin, origin + sp_document_dimensions(_clipboardSPDoc));
1113 unsigned long int width = (unsigned long int) (area.width() * dpi / PX_PER_IN + 0.5);
1114 unsigned long int height = (unsigned long int) (area.height() * dpi / PX_PER_IN + 0.5);
1116 // read from namedview
1117 Inkscape::XML::Node *nv = sp_repr_lookup_name (_clipboardSPDoc->rroot, "sodipodi:namedview");
1118 if (nv && nv->attribute("pagecolor"))
1119 bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00);
1120 if (nv && nv->attribute("inkscape:pageopacity"))
1121 bgcolor |= SP_COLOR_F_TO_U(sp_repr_get_double_attribute (nv, "inkscape:pageopacity", 1.0));
1123 sp_export_png_file(_clipboardSPDoc, filename, area, width, height, dpi, dpi, bgcolor, NULL, NULL, true, NULL);
1124 }
1125 else
1126 {
1127 if (!(*out)->loaded()) {
1128 // Need to load the extension.
1129 (*out)->set_state(Inkscape::Extension::Extension::STATE_LOADED);
1130 }
1131 (*out)->save(_clipboardSPDoc, filename);
1132 }
1133 g_file_get_contents(filename, &data, &len, NULL);
1135 sel.set(8, (guint8 const *) data, len);
1136 } catch (...) {
1137 }
1139 g_unlink(filename); // delete the temporary file
1140 g_free(filename);
1141 }
1144 /**
1145 * @brief Callback when someone else takes the clipboard
1146 *
1147 * When the clipboard owner changes, this callback clears the internal clipboard document
1148 * to reduce memory usage.
1149 */
1150 void ClipboardManagerImpl::_onClear()
1151 {
1152 // why is this called before _onGet???
1153 //_discardInternalClipboard();
1154 }
1157 /**
1158 * @brief Creates an internal clipboard document from scratch
1159 */
1160 void ClipboardManagerImpl::_createInternalClipboard()
1161 {
1162 if ( _clipboardSPDoc == NULL ) {
1163 _clipboardSPDoc = sp_document_new(NULL, false, true);
1164 //g_assert( _clipboardSPDoc != NULL );
1165 _defs = SP_OBJECT_REPR(SP_DOCUMENT_DEFS(_clipboardSPDoc));
1166 _doc = sp_document_repr_doc(_clipboardSPDoc);
1167 _root = sp_document_repr_root(_clipboardSPDoc);
1169 _clipnode = _doc->createElement("inkscape:clipboard");
1170 _root->appendChild(_clipnode);
1171 Inkscape::GC::release(_clipnode);
1173 // once we create a SVG document, style will be stored in it, so flush _text_style
1174 if (_text_style) {
1175 sp_repr_css_attr_unref(_text_style);
1176 _text_style = NULL;
1177 }
1178 }
1179 }
1182 /**
1183 * @brief Deletes the internal clipboard document
1184 */
1185 void ClipboardManagerImpl::_discardInternalClipboard()
1186 {
1187 if ( _clipboardSPDoc != NULL ) {
1188 sp_document_unref(_clipboardSPDoc);
1189 _clipboardSPDoc = NULL;
1190 _defs = NULL;
1191 _doc = NULL;
1192 _root = NULL;
1193 _clipnode = NULL;
1194 }
1195 }
1198 /**
1199 * @brief Get the scale to resize an item, based on the command and desktop state
1200 */
1201 Geom::Scale ClipboardManagerImpl::_getScale(Geom::Point const &min, Geom::Point const &max, Geom::Rect const &obj_rect, bool apply_x, bool apply_y)
1202 {
1203 SPDesktop *desktop = SP_ACTIVE_DESKTOP;
1204 double scale_x = 1.0;
1205 double scale_y = 1.0;
1207 if (apply_x) {
1208 scale_x = (max[Geom::X] - min[Geom::X]) / obj_rect[Geom::X].extent();
1209 }
1210 if (apply_y) {
1211 scale_y = (max[Geom::Y] - min[Geom::Y]) / obj_rect[Geom::Y].extent();
1212 }
1213 // If the "lock aspect ratio" button is pressed and we paste only a single coordinate,
1214 // resize the second one by the same ratio too
1215 if (desktop->isToolboxButtonActive("lock")) {
1216 if (apply_x && !apply_y) scale_y = scale_x;
1217 if (apply_y && !apply_x) scale_x = scale_y;
1218 }
1220 return Geom::Scale(scale_x, scale_y);
1221 }
1224 /**
1225 * @brief Find the most suitable clipboard target
1226 */
1227 Glib::ustring ClipboardManagerImpl::_getBestTarget()
1228 {
1229 std::list<Glib::ustring> targets = _clipboard->wait_for_targets();
1231 // clipboard target debugging snippet
1232 /*
1233 g_debug("Begin clipboard targets");
1234 for ( std::list<Glib::ustring>::iterator x = targets.begin() ; x != targets.end(); ++x )
1235 g_debug("Clipboard target: %s", (*x).data());
1236 g_debug("End clipboard targets\n");
1237 //*/
1239 for(std::list<Glib::ustring>::iterator i = _preferred_targets.begin() ;
1240 i != _preferred_targets.end() ; ++i)
1241 {
1242 if ( std::find(targets.begin(), targets.end(), *i) != targets.end() )
1243 return *i;
1244 }
1245 #ifdef WIN32
1246 if (OpenClipboard(NULL))
1247 { // If both bitmap and metafile are present, pick the one that was exported first.
1248 UINT format = EnumClipboardFormats(0);
1249 while (format) {
1250 if (format == CF_ENHMETAFILE || format == CF_DIB || format == CF_BITMAP)
1251 break;
1252 format = EnumClipboardFormats(format);
1253 }
1254 CloseClipboard();
1256 if (format == CF_ENHMETAFILE)
1257 return CLIPBOARD_WIN32_EMF_TARGET;
1258 if (format == CF_DIB || format == CF_BITMAP)
1259 return CLIPBOARD_GDK_PIXBUF_TARGET;
1260 }
1262 if (IsClipboardFormatAvailable(CF_ENHMETAFILE))
1263 return CLIPBOARD_WIN32_EMF_TARGET;
1264 #endif
1265 if (_clipboard->wait_is_image_available())
1266 return CLIPBOARD_GDK_PIXBUF_TARGET;
1267 if (_clipboard->wait_is_text_available())
1268 return CLIPBOARD_TEXT_TARGET;
1270 return "";
1271 }
1274 /**
1275 * @brief Set the clipboard targets to reflect the mimetypes Inkscape can output
1276 */
1277 void ClipboardManagerImpl::_setClipboardTargets()
1278 {
1279 Inkscape::Extension::DB::OutputList outlist;
1280 Inkscape::Extension::db.get_output_list(outlist);
1281 std::list<Gtk::TargetEntry> target_list;
1282 bool plaintextSet = false;
1283 for (Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin() ; out != outlist.end() ; ++out) {
1284 if ( !(*out)->deactivated() ) {
1285 Glib::ustring mime = (*out)->get_mimetype();
1286 if (mime != CLIPBOARD_TEXT_TARGET) {
1287 if ( !plaintextSet && (mime.find("svg") == Glib::ustring::npos) ) {
1288 target_list.push_back(Gtk::TargetEntry(CLIPBOARD_TEXT_TARGET));
1289 plaintextSet = true;
1290 }
1291 target_list.push_back(Gtk::TargetEntry(mime));
1292 }
1293 }
1294 }
1296 // Add PNG export explicitly since there is no extension for this...
1297 // On Windows, GTK will also present this as a CF_DIB/CF_BITMAP
1298 target_list.push_back(Gtk::TargetEntry( "image/png" ));
1300 _clipboard->set(target_list,
1301 sigc::mem_fun(*this, &ClipboardManagerImpl::_onGet),
1302 sigc::mem_fun(*this, &ClipboardManagerImpl::_onClear));
1304 #ifdef WIN32
1305 // If the "image/x-emf" target handled by the emf extension would be
1306 // presented as a CF_ENHMETAFILE automatically (just like an "image/bmp"
1307 // is presented as a CF_BITMAP) this code would not be needed.. ???
1308 // Or maybe there is some other way to achieve the same?
1310 // Note: Metafile is the only format that is rendered and stored in clipboard
1311 // on Copy, all other formats are rendered only when needed by a Paste command.
1313 // FIXME: This should at least be rewritten to use "delayed rendering".
1314 // If possible make it delayed rendering by using GTK API only.
1316 if (OpenClipboard(NULL)) {
1317 if ( _clipboardSPDoc != NULL ) {
1318 const Glib::ustring target = CLIPBOARD_WIN32_EMF_MIME;
1320 Inkscape::Extension::DB::OutputList outlist;
1321 Inkscape::Extension::db.get_output_list(outlist);
1322 Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin();
1323 for ( ; out != outlist.end() && target != (*out)->get_mimetype() ; ++out);
1324 if ( out != outlist.end() ) {
1325 // FIXME: Temporary hack until we add support for memory output.
1326 // Save to a temporary file, read it back and then set the clipboard contents
1327 gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-export.emf", NULL );
1329 try {
1330 (*out)->save(_clipboardSPDoc, filename);
1331 HENHMETAFILE hemf = GetEnhMetaFileA(filename);
1332 if (hemf) {
1333 SetClipboardData(CF_ENHMETAFILE, hemf);
1334 DeleteEnhMetaFile(hemf);
1335 }
1336 } catch (...) {
1337 }
1338 g_unlink(filename); // delete the temporary file
1339 g_free(filename);
1340 }
1341 }
1342 CloseClipboard();
1343 }
1344 #endif
1345 }
1348 /**
1349 * @brief Set the string representation of a 32-bit RGBA color as the clipboard contents
1350 */
1351 void ClipboardManagerImpl::_setClipboardColor(guint32 color)
1352 {
1353 gchar colorstr[16];
1354 g_snprintf(colorstr, 16, "%08x", color);
1355 _clipboard->set_text(colorstr);
1356 }
1359 /**
1360 * @brief Put a notification on the mesage stack
1361 */
1362 void ClipboardManagerImpl::_userWarn(SPDesktop *desktop, char const *msg)
1363 {
1364 desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, msg);
1365 }
1369 /* #######################################
1370 ClipboardManager class
1371 ####################################### */
1373 ClipboardManager *ClipboardManager::_instance = NULL;
1375 ClipboardManager::ClipboardManager() {}
1376 ClipboardManager::~ClipboardManager() {}
1377 ClipboardManager *ClipboardManager::get()
1378 {
1379 if ( _instance == NULL )
1380 _instance = new ClipboardManagerImpl;
1381 return _instance;
1382 }
1384 } // namespace Inkscape
1385 } // namespace IO
1387 /*
1388 Local Variables:
1389 mode:c++
1390 c-file-style:"stroustrup"
1391 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1392 indent-tabs-mode:nil
1393 fill-column:99
1394 End:
1395 */
1396 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :