/** * @file * System-wide clipboard management - implementation. */ /* Authors: * Krzysztof Kosiński * Jon A. Cruz * Incorporates some code from selection-chemistry.cpp, see that file for more credits. * Abhishek Sharma * Tavmjong Bah * * Copyright (C) 2008 authors * Copyright (C) 2010 Jon A. Cruz * Copyright (C) 2012 Tavmjong Bah (Symbol additions) * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * See the file COPYING for details. */ #include #include "ui/clipboard.h" // TODO: reduce header bloat if possible #include "file.h" // for file_import, used in _pasteImage #include #include #include #include #include // for g_file_set_contents etc., used in _onGet and paste #include "gc-core.h" #include "xml/repr.h" #include "inkscape.h" #include "io/stringstream.h" #include "desktop.h" #include "desktop-handles.h" #include "desktop-style.h" // for sp_desktop_set_style, used in _pasteStyle #include "document.h" #include "document-private.h" #include "selection.h" #include "message-stack.h" #include "context-fns.h" #include "ui/tools/dropper-tool.h" // used in copy() #include "style.h" #include "extension/db.h" // extension database #include "extension/input.h" #include "extension/output.h" #include "selection-chemistry.h" #include <2geom/rect.h> #include <2geom/transforms.h> #include "box3d.h" #include "gradient-drag.h" #include "sp-item.h" #include "sp-item-transform.h" // for sp_item_scale_rel, used in _pasteSize #include "sp-path.h" #include "sp-pattern.h" #include "sp-shape.h" #include "sp-gradient.h" #include "sp-gradient-reference.h" #include "sp-linear-gradient.h" #include "sp-radial-gradient.h" #include "sp-clippath.h" #include "sp-mask.h" #include "sp-textpath.h" #include "sp-rect.h" #include "sp-use.h" #include "sp-symbol.h" #include "live_effects/lpeobject.h" #include "live_effects/lpeobject-reference.h" #include "live_effects/parameter/path.h" #include "svg/svg.h" // for sp_svg_transform_write, used in _copySelection #include "svg/css-ostringstream.h" // used in copy #include "ui/tools/text-tool.h" #include "text-editing.h" #include "tools-switch.h" #include "path-chemistry.h" #include "util/units.h" #include "helper/png-write.h" #include "svg/svg-color.h" #include "sp-namedview.h" #include "snap.h" #include "persp3d.h" #include "preferences.h" /// Made up mimetype to represent Gdk::Pixbuf clipboard contents. #define CLIPBOARD_GDK_PIXBUF_TARGET "image/x-gdk-pixbuf" #define CLIPBOARD_TEXT_TARGET "text/plain" #ifdef WIN32 #include #endif namespace Inkscape { namespace UI { /** * Default implementation of the clipboard manager. */ class ClipboardManagerImpl : public ClipboardManager { public: virtual void copy(SPDesktop *desktop); virtual void copyPathParameter(Inkscape::LivePathEffect::PathParam *); virtual void copySymbol(Inkscape::XML::Node* symbol, gchar const* style); virtual bool paste(SPDesktop *desktop, bool in_place); virtual bool pasteStyle(SPDesktop *desktop); virtual bool pasteSize(SPDesktop *desktop, bool separately, bool apply_x, bool apply_y); virtual bool pastePathEffect(SPDesktop *desktop); virtual Glib::ustring getPathParameter(SPDesktop* desktop); virtual Glib::ustring getShapeOrTextObjectId(SPDesktop *desktop); virtual const gchar *getFirstObjectID(); ClipboardManagerImpl(); ~ClipboardManagerImpl(); private: void _copySelection(Inkscape::Selection *); void _copyUsedDefs(SPItem *); void _copyGradient(SPGradient *); void _copyPattern(SPPattern *); void _copyTextPath(SPTextPath *); Inkscape::XML::Node *_copyNode(Inkscape::XML::Node *, Inkscape::XML::Document *, Inkscape::XML::Node *); bool _pasteImage(SPDocument *doc); bool _pasteText(SPDesktop *desktop); void _applyPathEffect(SPItem *, gchar const *); SPDocument *_retrieveClipboard(Glib::ustring = ""); // clipboard callbacks void _onGet(Gtk::SelectionData &, guint); void _onClear(); // various helpers void _createInternalClipboard(); void _discardInternalClipboard(); Inkscape::XML::Node *_createClipNode(); Geom::Scale _getScale(SPDesktop *desktop, Geom::Point const &min, Geom::Point const &max, Geom::Rect const &obj_rect, bool apply_x, bool apply_y); Glib::ustring _getBestTarget(); void _setClipboardTargets(); void _setClipboardColor(guint32); void _userWarn(SPDesktop *, char const *); void _inkscape_wait_for_targets(std::list &); // private properites SPDocument *_clipboardSPDoc; ///< Document that stores the clipboard until someone requests it Inkscape::XML::Node *_defs; ///< Reference to the clipboard document's defs node Inkscape::XML::Node *_root; ///< Reference to the clipboard's root node Inkscape::XML::Node *_clipnode; ///< The node that holds extra information Inkscape::XML::Document *_doc; ///< Reference to the clipboard's Inkscape::XML::Document // we need a way to copy plain text AND remember its style; // the standard _clipnode is only available in an SVG tree, hence this special storage SPCSSAttr *_text_style; ///< Style copied along with plain text fragment Glib::RefPtr _clipboard; ///< Handle to the system wide clipboard - for convenience std::list _preferred_targets; ///< List of supported clipboard targets }; ClipboardManagerImpl::ClipboardManagerImpl() : _clipboardSPDoc(NULL), _defs(NULL), _root(NULL), _clipnode(NULL), _doc(NULL), _text_style(NULL), _clipboard( Gtk::Clipboard::get() ) { // Clipboard Formats: http://msdn.microsoft.com/en-us/library/ms649013(VS.85).aspx // On Windows, most graphical applications can handle CF_DIB/CF_BITMAP and/or CF_ENHMETAFILE // GTK automatically presents an "image/bmp" target as CF_DIB/CF_BITMAP // Presenting "image/x-emf" as CF_ENHMETAFILE must be done by Inkscape ? // push supported clipboard targets, in order of preference _preferred_targets.push_back("image/x-inkscape-svg"); _preferred_targets.push_back("image/svg+xml"); _preferred_targets.push_back("image/svg+xml-compressed"); _preferred_targets.push_back("image/x-emf"); _preferred_targets.push_back("CF_ENHMETAFILE"); _preferred_targets.push_back("WCF_ENHMETAFILE"); // seen on Wine _preferred_targets.push_back("application/pdf"); _preferred_targets.push_back("image/x-adobe-illustrator"); } ClipboardManagerImpl::~ClipboardManagerImpl() {} /** * Copy selection contents to the clipboard. */ void ClipboardManagerImpl::copy(SPDesktop *desktop) { if ( desktop == NULL ) { return; } Inkscape::Selection *selection = sp_desktop_selection(desktop); // Special case for when the gradient dragger is active - copies gradient color if (desktop->event_context->get_drag()) { GrDrag *drag = desktop->event_context->get_drag(); if (drag->hasSelection()) { guint32 col = drag->getColor(); // set the color as clipboard content (text in RRGGBBAA format) _setClipboardColor(col); // create a style with this color on fill and opacity in master opacity, so it can be // pasted on other stops or objects if (_text_style) { sp_repr_css_attr_unref(_text_style); _text_style = NULL; } _text_style = sp_repr_css_attr_new(); // print and set properties gchar color_str[16]; g_snprintf(color_str, 16, "#%06x", col >> 8); sp_repr_css_set_property(_text_style, "fill", color_str); float opacity = SP_RGBA32_A_F(col); if (opacity > 1.0) { opacity = 1.0; // safeguard } Inkscape::CSSOStringStream opcss; opcss << opacity; sp_repr_css_set_property(_text_style, "opacity", opcss.str().data()); _discardInternalClipboard(); return; } } // Special case for when the color picker ("dropper") is active - copies color under cursor if (tools_isactive(desktop, TOOLS_DROPPER)) { //_setClipboardColor(sp_dropper_context_get_color(desktop->event_context)); _setClipboardColor(SP_DROPPER_CONTEXT(desktop->event_context)->get_color()); _discardInternalClipboard(); return; } // Special case for when the text tool is active - if some text is selected, copy plain text, // not the object that holds it; also copy the style at cursor into if (tools_isactive(desktop, TOOLS_TEXT)) { _discardInternalClipboard(); Glib::ustring selected_text = Inkscape::UI::Tools::sp_text_get_selected_text(desktop->event_context); _clipboard->set_text(selected_text); if (_text_style) { sp_repr_css_attr_unref(_text_style); _text_style = NULL; } _text_style = Inkscape::UI::Tools::sp_text_get_style_at_cursor(desktop->event_context); return; } if (selection->isEmpty()) { // check whether something is selected _userWarn(desktop, _("Nothing was copied.")); return; } _discardInternalClipboard(); _createInternalClipboard(); // construct a new clipboard document _copySelection(selection); // copy all items in the selection to the internal clipboard fit_canvas_to_drawing(_clipboardSPDoc); _setClipboardTargets(); } /** * Copy a Live Path Effect path parameter to the clipboard. * @param pp The path parameter to store in the clipboard. */ void ClipboardManagerImpl::copyPathParameter(Inkscape::LivePathEffect::PathParam *pp) { if ( pp == NULL ) { return; } gchar *svgd = sp_svg_write_path( pp->get_pathvector() ); if ( svgd == NULL || *svgd == '\0' ) { return; } _discardInternalClipboard(); _createInternalClipboard(); Inkscape::XML::Node *pathnode = _doc->createElement("svg:path"); pathnode->setAttribute("d", svgd); g_free(svgd); _root->appendChild(pathnode); Inkscape::GC::release(pathnode); fit_canvas_to_drawing(_clipboardSPDoc); _setClipboardTargets(); } /** * Copy a symbol from the symbol dialog. * @param symbol The Inkscape::XML::Node for the symbol. */ void ClipboardManagerImpl::copySymbol(Inkscape::XML::Node* symbol, gchar const* style) { //std::cout << "ClipboardManagerImpl::copySymbol" << std::endl; if ( symbol == NULL ) { return; } _discardInternalClipboard(); _createInternalClipboard(); // We add "_duplicate" to have a well defined symbol name that // bypasses the "prevent_id_classes" routine. We'll get rid of it // when we paste. Inkscape::XML::Node *repr = symbol->duplicate(_doc); Glib::ustring symbol_name = repr->attribute("id"); symbol_name += "_inkscape_duplicate"; repr->setAttribute("id", symbol_name.c_str()); _defs->appendChild(repr); Glib::ustring id("#"); id += symbol->attribute("id"); Inkscape::XML::Node *use = _doc->createElement("svg:use"); use->setAttribute("xlink:href", id.c_str() ); // Set a default style in rather than so it can be changed. use->setAttribute("style", style ); _root->appendChild(use); // This min and max sets offsets, we don't have any so set to zero. sp_repr_set_point(_clipnode, "min", Geom::Point(0,0)); sp_repr_set_point(_clipnode, "max", Geom::Point(0,0)); fit_canvas_to_drawing(_clipboardSPDoc); _setClipboardTargets(); } /** * Paste from the system clipboard into the active desktop. * @param in_place Whether to put the contents where they were when copied. */ bool ClipboardManagerImpl::paste(SPDesktop *desktop, bool in_place) { // do any checking whether we really are able to paste before requesting the contents if ( desktop == NULL ) { return false; } if ( Inkscape::have_viable_layer(desktop, desktop->messageStack()) == false ) { return false; } Glib::ustring target = _getBestTarget(); // Special cases of clipboard content handling go here // Note that target priority is determined in _getBestTarget. // TODO: Handle x-special/gnome-copied-files and text/uri-list to support pasting files // if there is an image on the clipboard, paste it if ( target == CLIPBOARD_GDK_PIXBUF_TARGET ) { return _pasteImage(desktop->doc()); } // if there's only text, paste it into a selected text object or create a new one if ( target == CLIPBOARD_TEXT_TARGET ) { return _pasteText(desktop); } // otherwise, use the import extensions SPDocument *tempdoc = _retrieveClipboard(target); if ( tempdoc == NULL ) { _userWarn(desktop, _("Nothing on the clipboard.")); return false; } sp_import_document(desktop, tempdoc, in_place); tempdoc->doUnref(); return true; } /** * Returns the id of the first visible copied object. */ const gchar *ClipboardManagerImpl::getFirstObjectID() { SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg"); if ( tempdoc == NULL ) { return NULL; } Inkscape::XML::Node *root = tempdoc->getReprRoot(); if (!root) { return NULL; } Inkscape::XML::Node *ch = root->firstChild(); while (ch != NULL && strcmp(ch->name(), "svg:g") && strcmp(ch->name(), "svg:path") && strcmp(ch->name(), "svg:use") && strcmp(ch->name(), "svg:text") && strcmp(ch->name(), "svg:image") && strcmp(ch->name(), "svg:rect") ) { ch = ch->next(); } if (ch) { return ch->attribute("id"); } return NULL; } /** * Implements the Paste Style action. */ bool ClipboardManagerImpl::pasteStyle(SPDesktop *desktop) { if (desktop == NULL) { return false; } // check whether something is selected Inkscape::Selection *selection = sp_desktop_selection(desktop); if (selection->isEmpty()) { _userWarn(desktop, _("Select object(s) to paste style to.")); return false; } SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg"); if ( tempdoc == NULL ) { // no document, but we can try _text_style if (_text_style) { sp_desktop_set_style(desktop, _text_style); return true; } else { _userWarn(desktop, _("No style on the clipboard.")); return false; } } Inkscape::XML::Node *root = tempdoc->getReprRoot(); Inkscape::XML::Node *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1); bool pasted = false; if (clipnode) { desktop->doc()->importDefs(tempdoc); SPCSSAttr *style = sp_repr_css_attr(clipnode, "style"); sp_desktop_set_style(desktop, style); pasted = true; } else { _userWarn(desktop, _("No style on the clipboard.")); } tempdoc->doUnref(); return pasted; } /** * Resize the selection or each object in the selection to match the clipboard's size. * @param separately Whether to scale each object in the selection separately * @param apply_x Whether to scale the width of objects / selection * @param apply_y Whether to scale the height of objects / selection */ bool ClipboardManagerImpl::pasteSize(SPDesktop *desktop, bool separately, bool apply_x, bool apply_y) { if (!apply_x && !apply_y) { return false; // pointless parameters } if ( desktop == NULL ) { return false; } Inkscape::Selection *selection = sp_desktop_selection(desktop); if (selection->isEmpty()) { _userWarn(desktop, _("Select object(s) to paste size to.")); return false; } // FIXME: actually, this should accept arbitrary documents SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg"); if ( tempdoc == NULL ) { _userWarn(desktop, _("No size on the clipboard.")); return false; } // retrieve size ifomration from the clipboard Inkscape::XML::Node *root = tempdoc->getReprRoot(); Inkscape::XML::Node *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1); bool pasted = false; if (clipnode) { Geom::Point min, max; sp_repr_get_point(clipnode, "min", &min); sp_repr_get_point(clipnode, "max", &max); // resize each object in the selection if (separately) { for (GSList *i = const_cast(selection->itemList()) ; i ; i = i->next) { SPItem *item = SP_ITEM(i->data); Geom::OptRect obj_size = item->desktopVisualBounds(); if ( !obj_size ) { continue; } sp_item_scale_rel(item, _getScale(desktop, min, max, *obj_size, apply_x, apply_y)); } } // resize the selection as a whole else { Geom::OptRect sel_size = selection->visualBounds(); if ( sel_size ) { sp_selection_scale_relative(selection, sel_size->midpoint(), _getScale(desktop, min, max, *sel_size, apply_x, apply_y)); } } pasted = true; } tempdoc->doUnref(); return pasted; } /** * Applies a path effect from the clipboard to the selected path. */ bool ClipboardManagerImpl::pastePathEffect(SPDesktop *desktop) { /** @todo FIXME: pastePathEffect crashes when moving the path with the applied effect, segfaulting in fork_private_if_necessary(). */ if ( desktop == NULL ) { return false; } Inkscape::Selection *selection = sp_desktop_selection(desktop); if (selection && selection->isEmpty()) { _userWarn(desktop, _("Select object(s) to paste live path effect to.")); return false; } SPDocument *tempdoc = _retrieveClipboard("image/x-inkscape-svg"); if ( tempdoc ) { Inkscape::XML::Node *root = tempdoc->getReprRoot(); Inkscape::XML::Node *clipnode = sp_repr_lookup_name(root, "inkscape:clipboard", 1); if ( clipnode ) { gchar const *effectstack = clipnode->attribute("inkscape:path-effect"); if ( effectstack ) { desktop->doc()->importDefs(tempdoc); // make sure all selected items are converted to paths first (i.e. rectangles) sp_selected_to_lpeitems(desktop); for (GSList *itemptr = const_cast(selection->itemList()) ; itemptr ; itemptr = itemptr->next) { SPItem *item = reinterpret_cast(itemptr->data); _applyPathEffect(item, effectstack); } return true; } } } // no_effect: _userWarn(desktop, _("No effect on the clipboard.")); return false; } /** * Get LPE path data from the clipboard. * @return The retrieved path data (contents of the d attribute), or "" if no path was found */ Glib::ustring ClipboardManagerImpl::getPathParameter(SPDesktop* desktop) { SPDocument *tempdoc = _retrieveClipboard(); // any target will do here if ( tempdoc == NULL ) { _userWarn(desktop, _("Nothing on the clipboard.")); return ""; } Inkscape::XML::Node *root = tempdoc->getReprRoot(); Inkscape::XML::Node *path = sp_repr_lookup_name(root, "svg:path", -1); // unlimited search depth if ( path == NULL ) { _userWarn(desktop, _("Clipboard does not contain a path.")); tempdoc->doUnref(); return ""; } gchar const *svgd = path->attribute("d"); return svgd; } /** * Get object id of a shape or text item from the clipboard. * @return The retrieved id string (contents of the id attribute), or "" if no shape or text item was found. */ Glib::ustring ClipboardManagerImpl::getShapeOrTextObjectId(SPDesktop *desktop) { SPDocument *tempdoc = _retrieveClipboard(); // any target will do here if ( tempdoc == NULL ) { _userWarn(desktop, _("Nothing on the clipboard.")); return ""; } Inkscape::XML::Node *root = tempdoc->getReprRoot(); Inkscape::XML::Node *repr = sp_repr_lookup_name(root, "svg:path", -1); // unlimited search depth if ( repr == NULL ) { repr = sp_repr_lookup_name(root, "svg:text", -1); } if ( repr == NULL ) { _userWarn(desktop, _("Clipboard does not contain a path.")); tempdoc->doUnref(); return ""; } gchar const *svgd = repr->attribute("id"); return svgd; } /** * Iterate over a list of items and copy them to the clipboard. */ void ClipboardManagerImpl::_copySelection(Inkscape::Selection *selection) { GSList const *items = selection->itemList(); // copy the defs used by all items for (GSList *i = const_cast(items) ; i != NULL ; i = i->next) { _copyUsedDefs(SP_ITEM (i->data)); } // copy the representation of the items GSList *sorted_items = g_slist_copy(const_cast(items)); sorted_items = g_slist_sort(sorted_items, (GCompareFunc) sp_object_compare_position); for (GSList *i = sorted_items ; i ; i = i->next) { if (!SP_IS_ITEM(i->data)) { continue; } Inkscape::XML::Node *obj = reinterpret_cast(i->data)->getRepr(); Inkscape::XML::Node *obj_copy = _copyNode(obj, _doc, _root); // copy complete inherited style SPCSSAttr *css = sp_repr_css_attr_inherited(obj, "style"); sp_repr_css_set(obj_copy, css, "style"); sp_repr_css_attr_unref(css); // write the complete accumulated transform passed to us // (we're dealing with unattached representations, so we write to their attributes // instead of using sp_item_set_transform) gchar *transform_str = sp_svg_transform_write(SP_ITEM(i->data)->i2doc_affine()); obj_copy->setAttribute("transform", transform_str); g_free(transform_str); } // copy style for Paste Style action if (sorted_items) { if (SP_IS_ITEM(sorted_items->data)) { SPCSSAttr *style = take_style_from_item((SPItem *) sorted_items->data); sp_repr_css_set(_clipnode, style, "style"); sp_repr_css_attr_unref(style); } // copy path effect from the first path if (SP_IS_OBJECT(sorted_items->data)) { gchar const *effect = reinterpret_cast(sorted_items->data)->getRepr()->attribute("inkscape:path-effect"); if (effect) { _clipnode->setAttribute("inkscape:path-effect", effect); } } } Geom::OptRect size = selection->visualBounds(); if (size) { sp_repr_set_point(_clipnode, "min", size->min()); sp_repr_set_point(_clipnode, "max", size->max()); } g_slist_free(sorted_items); } /** * Recursively copy all the definitions used by a given item to the clipboard defs. */ void ClipboardManagerImpl::_copyUsedDefs(SPItem *item) { // copy fill and stroke styles (patterns and gradients) SPStyle *style = item->style; if (style && (style->fill.isPaintserver())) { SPPaintServer *server = item->style->getFillPaintServer(); if ( SP_IS_LINEARGRADIENT(server) || SP_IS_RADIALGRADIENT(server) ) { _copyGradient(SP_GRADIENT(server)); } if ( SP_IS_PATTERN(server) ) { _copyPattern(SP_PATTERN(server)); } } if (style && (style->stroke.isPaintserver())) { SPPaintServer *server = item->style->getStrokePaintServer(); if ( SP_IS_LINEARGRADIENT(server) || SP_IS_RADIALGRADIENT(server) ) { _copyGradient(SP_GRADIENT(server)); } if ( SP_IS_PATTERN(server) ) { _copyPattern(SP_PATTERN(server)); } } // For shapes, copy all of the shape's markers if (SP_IS_SHAPE(item)) { SPShape *shape = SP_SHAPE (item); for (int i = 0 ; i < SP_MARKER_LOC_QTY ; i++) { if (shape->_marker[i]) { _copyNode(shape->_marker[i]->getRepr(), _doc, _defs); } } } // For lpe items, copy lpe stack if applicable if (SP_IS_LPE_ITEM(item)) { SPLPEItem *lpeitem = SP_LPE_ITEM (item); if (lpeitem->hasPathEffect()) { for (PathEffectList::iterator it = lpeitem->path_effect_list->begin(); it != lpeitem->path_effect_list->end(); ++it) { LivePathEffectObject *lpeobj = (*it)->lpeobject; if (lpeobj) { _copyNode(lpeobj->getRepr(), _doc, _defs); } } } } // For 3D boxes, copy perspectives if (SP_IS_BOX3D(item)) { _copyNode(box3d_get_perspective(SP_BOX3D(item))->getRepr(), _doc, _defs); } // Copy text paths if (SP_IS_TEXT_TEXTPATH(item)) { _copyTextPath(SP_TEXTPATH(item->firstChild())); } // Copy clipping objects if (item->clip_ref){ if (item->clip_ref->getObject()) { _copyNode(item->clip_ref->getObject()->getRepr(), _doc, _defs); } } // Copy mask objects if (item->mask_ref){ if (item->mask_ref->getObject()) { SPObject *mask = item->mask_ref->getObject(); _copyNode(mask->getRepr(), _doc, _defs); // recurse into the mask for its gradients etc. for (SPObject *o = mask->children ; o != NULL ; o = o->next) { if (SP_IS_ITEM(o)) { _copyUsedDefs(SP_ITEM(o)); } } } } // Copy filters if (style->getFilter()) { SPObject *filter = style->getFilter(); if (SP_IS_FILTER(filter)) { _copyNode(filter->getRepr(), _doc, _defs); } } // recurse for (SPObject *o = item->children ; o != NULL ; o = o->next) { if (SP_IS_ITEM(o)) { _copyUsedDefs(SP_ITEM(o)); } } } /** * Copy a single gradient to the clipboard's defs element. */ void ClipboardManagerImpl::_copyGradient(SPGradient *gradient) { while (gradient) { // climb up the refs, copying each one in the chain _copyNode(gradient->getRepr(), _doc, _defs); if (gradient->ref){ gradient = gradient->ref->getObject(); } else { gradient = NULL; } } } /** * Copy a single pattern to the clipboard document's defs element. */ void ClipboardManagerImpl::_copyPattern(SPPattern *pattern) { // climb up the references, copying each one in the chain while (pattern) { _copyNode(pattern->getRepr(), _doc, _defs); // items in the pattern may also use gradients and other patterns, so recurse for ( SPObject *child = pattern->firstChild() ; child ; child = child->getNext() ) { if (!SP_IS_ITEM (child)) { continue; } _copyUsedDefs(SP_ITEM(child)); } if (pattern->ref){ pattern = pattern->ref->getObject(); } else{ pattern = NULL; } } } /** * Copy a text path to the clipboard's defs element. */ void ClipboardManagerImpl::_copyTextPath(SPTextPath *tp) { SPItem *path = sp_textpath_get_path_item(tp); if (!path) { return; } Inkscape::XML::Node *path_node = path->getRepr(); // Do not copy the text path to defs if it's already copied if (sp_repr_lookup_child(_root, "id", path_node->attribute("id"))) { return; } _copyNode(path_node, _doc, _defs); } /** * Copy a single XML node from one document to another. * @param node The node to be copied * @param target_doc The document to which the node is to be copied * @param parent The node in the target document which will become the parent of the copied node * @return Pointer to the copied node */ Inkscape::XML::Node *ClipboardManagerImpl::_copyNode(Inkscape::XML::Node *node, Inkscape::XML::Document *target_doc, Inkscape::XML::Node *parent) { Inkscape::XML::Node *dup = node->duplicate(target_doc); parent->appendChild(dup); Inkscape::GC::release(dup); return dup; } /** * Retrieve a bitmap image from the clipboard and paste it into the active document. */ bool ClipboardManagerImpl::_pasteImage(SPDocument *doc) { if ( doc == NULL ) { return false; } // retrieve image data Glib::RefPtr img = _clipboard->wait_for_image(); if (!img) { return false; } // TODO unify with interface.cpp's sp_ui_drag_data_received() // AARGH stupid Inkscape::Extension::DB::InputList o; Inkscape::Extension::db.get_input_list(o); Inkscape::Extension::DB::InputList::const_iterator i = o.begin(); while (i != o.end() && strcmp( (*i)->get_mimetype(), "image/png" ) != 0) { ++i; } Inkscape::Extension::Extension *png = *i; Inkscape::Preferences *prefs = Inkscape::Preferences::get(); Glib::ustring attr = prefs->getString("/dialogs/import/link"); prefs->setString("/dialogs/import/link", "embed"); png->set_gui(false); gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-import", NULL ); img->save(filename, "png"); file_import(doc, filename, png); g_free(filename); prefs->setString("/dialogs/import/link", attr); png->set_gui(true); return true; } /** * Paste text into the selected text object or create a new one to hold it. */ bool ClipboardManagerImpl::_pasteText(SPDesktop *desktop) { if ( desktop == NULL ) { return false; } // if the text editing tool is active, paste the text into the active text object if (tools_isactive(desktop, TOOLS_TEXT)) { return Inkscape::UI::Tools::sp_text_paste_inline(desktop->event_context); } // try to parse the text as a color and, if successful, apply it as the current style SPCSSAttr *css = sp_repr_css_attr_parse_color_to_fill(_clipboard->wait_for_text()); if (css) { sp_desktop_set_style(desktop, css); return true; } return false; } /** * Applies a pasted path effect to a given item. */ void ClipboardManagerImpl::_applyPathEffect(SPItem *item, gchar const *effectstack) { if ( item == NULL ) { return; } if ( SP_IS_RECT(item) ) { return; } if (SP_IS_LPE_ITEM(item)) { SPLPEItem *lpeitem = SP_LPE_ITEM(item); // for each effect in the stack, check if we need to fork it before adding it to the item lpeitem->forkPathEffectsIfNecessary(1); std::istringstream iss(effectstack); std::string href; while (std::getline(iss, href, ';')) { SPObject *obj = sp_uri_reference_resolve(_clipboardSPDoc, href.c_str()); if (!obj) { return; } LivePathEffectObject *lpeobj = LIVEPATHEFFECT(obj); lpeitem->addPathEffect(lpeobj); } } } /** * Retrieve the clipboard contents as a document. * @return Clipboard contents converted to SPDocument, or NULL if no suitable content was present */ SPDocument *ClipboardManagerImpl::_retrieveClipboard(Glib::ustring required_target) { Glib::ustring best_target; if ( required_target == "" ) { best_target = _getBestTarget(); } else { best_target = required_target; } if ( best_target == "" ) { return NULL; } // FIXME: Temporary hack until we add memory input. // Save the clipboard contents to some file, then read it gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-import", NULL ); bool file_saved = false; Glib::ustring target = best_target; #ifdef WIN32 if (best_target == "CF_ENHMETAFILE" || best_target == "WCF_ENHMETAFILE") { // Try to save clipboard data as en emf file (using win32 api) if (OpenClipboard(NULL)) { HGLOBAL hglb = GetClipboardData(CF_ENHMETAFILE); if (hglb) { HENHMETAFILE hemf = CopyEnhMetaFile((HENHMETAFILE) hglb, filename); if (hemf) { file_saved = true; target = "image/x-emf"; DeleteEnhMetaFile(hemf); } } CloseClipboard(); } } #endif if (!file_saved) { if ( !_clipboard->wait_is_target_available(best_target) ) { return NULL; } // doing this synchronously makes better sense // TODO: use another method because this one is badly broken imo. // from documentation: "Returns: A SelectionData object, which will be invalid if retrieving the given target failed." // I don't know how to check whether an object is 'valid' or not, unusable if that's not possible... Gtk::SelectionData sel = _clipboard->wait_for_contents(best_target); target = sel.get_target(); // this can crash if the result was invalid of last function. No way to check for this :( // FIXME: Temporary hack until we add memory input. // Save the clipboard contents to some file, then read it g_file_set_contents(filename, (const gchar *) sel.get_data(), sel.get_length(), NULL); } // there is no specific plain SVG input extension, so if we can paste the Inkscape SVG format, // we use the image/svg+xml mimetype to look up the input extension if (target == "image/x-inkscape-svg") { target = "image/svg+xml"; } // Use the EMF extension to import metafiles if (target == "CF_ENHMETAFILE" || target == "WCF_ENHMETAFILE") { target = "image/x-emf"; } Inkscape::Extension::DB::InputList inlist; Inkscape::Extension::db.get_input_list(inlist); Inkscape::Extension::DB::InputList::const_iterator in = inlist.begin(); for (; in != inlist.end() && target != (*in)->get_mimetype() ; ++in) { }; if ( in == inlist.end() ) { return NULL; // this shouldn't happen unless _getBestTarget returns something bogus } SPDocument *tempdoc = NULL; try { tempdoc = (*in)->open(filename); } catch (...) { } g_unlink(filename); g_free(filename); return tempdoc; } /** * Callback called when some other application requests data from Inkscape. * * Finds a suitable output extension to save the internal clipboard document, * then saves it to memory and sets the clipboard contents. */ void ClipboardManagerImpl::_onGet(Gtk::SelectionData &sel, guint /*info*/) { g_assert( _clipboardSPDoc != NULL ); Glib::ustring target = sel.get_target(); if (target == "") { return; // this shouldn't happen } if (target == CLIPBOARD_TEXT_TARGET) { target = "image/x-inkscape-svg"; } Inkscape::Extension::DB::OutputList outlist; Inkscape::Extension::db.get_output_list(outlist); Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin(); for ( ; out != outlist.end() && target != (*out)->get_mimetype() ; ++out) { }; if ( out == outlist.end() && target != "image/png") { return; // this also shouldn't happen } // FIXME: Temporary hack until we add support for memory output. // Save to a temporary file, read it back and then set the clipboard contents gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-export", NULL ); gsize len; gchar *data; try { if (out == outlist.end() && target == "image/png") { gdouble dpi = Inkscape::Util::Quantity::convert(1, "in", "px"); guint32 bgcolor = 0x00000000; Geom::Point origin (_clipboardSPDoc->getRoot()->x.computed, _clipboardSPDoc->getRoot()->y.computed); Geom::Rect area = Geom::Rect(origin, origin + _clipboardSPDoc->getDimensions()); unsigned long int width = (unsigned long int) (Inkscape::Util::Quantity::convert(area.width(), "px", "in") * dpi + 0.5); unsigned long int height = (unsigned long int) (Inkscape::Util::Quantity::convert(area.height(), "in", "px") * dpi + 0.5); // read from namedview Inkscape::XML::Node *nv = sp_repr_lookup_name (_clipboardSPDoc->rroot, "sodipodi:namedview"); if (nv && nv->attribute("pagecolor")) { bgcolor = sp_svg_read_color(nv->attribute("pagecolor"), 0xffffff00); } if (nv && nv->attribute("inkscape:pageopacity")) { double opacity = 1.0; sp_repr_get_double(nv, "inkscape:pageopacity", &opacity); bgcolor |= SP_COLOR_F_TO_U(opacity); } sp_export_png_file(_clipboardSPDoc, filename, area, width, height, dpi, dpi, bgcolor, NULL, NULL, true, NULL); } else { if (!(*out)->loaded()) { // Need to load the extension. (*out)->set_state(Inkscape::Extension::Extension::STATE_LOADED); } (*out)->save(_clipboardSPDoc, filename); } g_file_get_contents(filename, &data, &len, NULL); sel.set(8, (guint8 const *) data, len); } catch (...) { } g_unlink(filename); // delete the temporary file g_free(filename); } /** * Callback when someone else takes the clipboard. * * When the clipboard owner changes, this callback clears the internal clipboard document * to reduce memory usage. */ void ClipboardManagerImpl::_onClear() { // why is this called before _onGet??? //_discardInternalClipboard(); } /** * Creates an internal clipboard document from scratch. */ void ClipboardManagerImpl::_createInternalClipboard() { if ( _clipboardSPDoc == NULL ) { _clipboardSPDoc = SPDocument::createNewDoc(NULL, false, true); //g_assert( _clipboardSPDoc != NULL ); _defs = _clipboardSPDoc->getDefs()->getRepr(); _doc = _clipboardSPDoc->getReprDoc(); _root = _clipboardSPDoc->getReprRoot(); _clipnode = _doc->createElement("inkscape:clipboard"); _root->appendChild(_clipnode); Inkscape::GC::release(_clipnode); // once we create a SVG document, style will be stored in it, so flush _text_style if (_text_style) { sp_repr_css_attr_unref(_text_style); _text_style = NULL; } } } /** * Deletes the internal clipboard document. */ void ClipboardManagerImpl::_discardInternalClipboard() { if ( _clipboardSPDoc != NULL ) { _clipboardSPDoc->doUnref(); _clipboardSPDoc = NULL; _defs = NULL; _doc = NULL; _root = NULL; _clipnode = NULL; } } /** * Get the scale to resize an item, based on the command and desktop state. */ Geom::Scale ClipboardManagerImpl::_getScale(SPDesktop *desktop, Geom::Point const &min, Geom::Point const &max, Geom::Rect const &obj_rect, bool apply_x, bool apply_y) { double scale_x = 1.0; double scale_y = 1.0; if (apply_x) { scale_x = (max[Geom::X] - min[Geom::X]) / obj_rect[Geom::X].extent(); } if (apply_y) { scale_y = (max[Geom::Y] - min[Geom::Y]) / obj_rect[Geom::Y].extent(); } // If the "lock aspect ratio" button is pressed and we paste only a single coordinate, // resize the second one by the same ratio too if (desktop->isToolboxButtonActive("lock")) { if (apply_x && !apply_y) { scale_y = scale_x; } if (apply_y && !apply_x) { scale_x = scale_y; } } return Geom::Scale(scale_x, scale_y); } /** * Find the most suitable clipboard target. */ Glib::ustring ClipboardManagerImpl::_getBestTarget() { // GTKmm's wait_for_targets() is broken, see the comment in _inkscape_wait_for_targets() std::list targets; // = _clipboard->wait_for_targets(); _inkscape_wait_for_targets(targets); // clipboard target debugging snippet /* g_message("Begin clipboard targets"); for ( std::list::iterator x = targets.begin() ; x != targets.end(); ++x ) g_message("Clipboard target: %s", (*x).data()); g_message("End clipboard targets\n"); //*/ for (std::list::iterator i = _preferred_targets.begin() ; i != _preferred_targets.end() ; ++i) { if ( std::find(targets.begin(), targets.end(), *i) != targets.end() ) { return *i; } } #ifdef WIN32 if (OpenClipboard(NULL)) { // If both bitmap and metafile are present, pick the one that was exported first. UINT format = EnumClipboardFormats(0); while (format) { if (format == CF_ENHMETAFILE || format == CF_DIB || format == CF_BITMAP) { break; } format = EnumClipboardFormats(format); } CloseClipboard(); if (format == CF_ENHMETAFILE) { return "CF_ENHMETAFILE"; } if (format == CF_DIB || format == CF_BITMAP) { return CLIPBOARD_GDK_PIXBUF_TARGET; } } if (IsClipboardFormatAvailable(CF_ENHMETAFILE)) { return "CF_ENHMETAFILE"; } #endif if (_clipboard->wait_is_image_available()) { return CLIPBOARD_GDK_PIXBUF_TARGET; } if (_clipboard->wait_is_text_available()) { return CLIPBOARD_TEXT_TARGET; } return ""; } /** * Set the clipboard targets to reflect the mimetypes Inkscape can output. */ void ClipboardManagerImpl::_setClipboardTargets() { Inkscape::Extension::DB::OutputList outlist; Inkscape::Extension::db.get_output_list(outlist); #if WITH_GTKMM_3_0 std::vector target_list; #else std::list target_list; #endif bool plaintextSet = false; for (Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin() ; out != outlist.end() ; ++out) { if ( !(*out)->deactivated() ) { Glib::ustring mime = (*out)->get_mimetype(); if (mime != CLIPBOARD_TEXT_TARGET) { if ( !plaintextSet && (mime.find("svg") == Glib::ustring::npos) ) { target_list.push_back(Gtk::TargetEntry(CLIPBOARD_TEXT_TARGET)); plaintextSet = true; } target_list.push_back(Gtk::TargetEntry(mime)); } } } // Add PNG export explicitly since there is no extension for this... // On Windows, GTK will also present this as a CF_DIB/CF_BITMAP target_list.push_back(Gtk::TargetEntry( "image/png" )); _clipboard->set(target_list, sigc::mem_fun(*this, &ClipboardManagerImpl::_onGet), sigc::mem_fun(*this, &ClipboardManagerImpl::_onClear)); #ifdef WIN32 // If the "image/x-emf" target handled by the emf extension would be // presented as a CF_ENHMETAFILE automatically (just like an "image/bmp" // is presented as a CF_BITMAP) this code would not be needed.. ??? // Or maybe there is some other way to achieve the same? // Note: Metafile is the only format that is rendered and stored in clipboard // on Copy, all other formats are rendered only when needed by a Paste command. // FIXME: This should at least be rewritten to use "delayed rendering". // If possible make it delayed rendering by using GTK API only. if (OpenClipboard(NULL)) { if ( _clipboardSPDoc != NULL ) { const Glib::ustring target = "image/x-emf"; Inkscape::Extension::DB::OutputList outlist; Inkscape::Extension::db.get_output_list(outlist); Inkscape::Extension::DB::OutputList::const_iterator out = outlist.begin(); for ( ; out != outlist.end() && target != (*out)->get_mimetype() ; ++out) { } if ( out != outlist.end() ) { // FIXME: Temporary hack until we add support for memory output. // Save to a temporary file, read it back and then set the clipboard contents gchar *filename = g_build_filename( g_get_tmp_dir(), "inkscape-clipboard-export.emf", NULL ); try { (*out)->save(_clipboardSPDoc, filename); HENHMETAFILE hemf = GetEnhMetaFileA(filename); if (hemf) { SetClipboardData(CF_ENHMETAFILE, hemf); DeleteEnhMetaFile(hemf); } } catch (...) { } g_unlink(filename); // delete the temporary file g_free(filename); } } CloseClipboard(); } #endif } /** * Set the string representation of a 32-bit RGBA color as the clipboard contents. */ void ClipboardManagerImpl::_setClipboardColor(guint32 color) { gchar colorstr[16]; g_snprintf(colorstr, 16, "%08x", color); _clipboard->set_text(colorstr); } /** * Put a notification on the mesage stack. */ void ClipboardManagerImpl::_userWarn(SPDesktop *desktop, char const *msg) { desktop->messageStack()->flash(Inkscape::WARNING_MESSAGE, msg); } // GTKMM's clipboard::wait_for_targets is buggy and might return bogus, see // // https://bugs.launchpad.net/inkscape/+bug/296778 // http://mail.gnome.org/archives/gtk-devel-list/2009-June/msg00062.html // // for details. Until this has been fixed upstream we will use our own implementation // of this method, as copied from /gtkmm-2.16.0/gtk/gtkmm/clipboard.cc. void ClipboardManagerImpl::_inkscape_wait_for_targets(std::list &listTargets) { //Get a newly-allocated array of atoms: GdkAtom* targets = NULL; gint n_targets = 0; gboolean test = gtk_clipboard_wait_for_targets( gtk_clipboard_get(GDK_SELECTION_CLIPBOARD), &targets, &n_targets ); if (!test || (targets == NULL)) { return; } //Add the targets to the C++ container: for (int i = 0; i < n_targets; i++) { //Convert the atom to a string: gchar* const atom_name = gdk_atom_name(targets[i]); Glib::ustring target; if (atom_name) { target = Glib::ScopedPtr(atom_name).get(); //This frees the gchar*. } listTargets.push_back(target); } } /* ####################################### ClipboardManager class ####################################### */ ClipboardManager *ClipboardManager::_instance = NULL; ClipboardManager::ClipboardManager() {} ClipboardManager::~ClipboardManager() {} ClipboardManager *ClipboardManager::get() { if ( _instance == NULL ) { _instance = new ClipboardManagerImpl; } return _instance; } } // namespace Inkscape } // namespace IO /* Local Variables: mode:c++ c-file-style:"stroustrup" c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) indent-tabs-mode:nil fill-column:99 End: */ // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :