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index f24fa933a053da5736ec95fca3742b7bb8abdf4e..8d9b2376ff586770d7b5b8da664c629fa6b770f0 100644 (file)
-#define INKSCAPE_LIVEPATHEFFECT_PARAMETER_PATH_CPP\r
-\r
-/*\r
- * Copyright (C) Johan Engelen 2007 <j.b.c.engelen@utwente.nl>\r
- *\r
- * Released under GNU GPL, read the file 'COPYING' for more information\r
- */\r
-\r
-#include "live_effects/parameter/path.h"\r
-#include "live_effects/effect.h"\r
-#include "live_effects/n-art-bpath-2geom.h"\r
-#include "svg/svg.h"\r
-#include <2geom/svg-path-parser.h>\r
-#include <2geom/sbasis-to-bezier.h>\r
-#include <2geom/d2.h>\r
-\r
-#include "ui/widget/point.h"\r
-#include "widgets/icon.h"\r
-#include <gtk/gtkstock.h>\r
-#include "selection-chemistry.h"\r
-\r
-#include "desktop.h"\r
-#include "inkscape.h"\r
-#include "message-stack.h"\r
-#include "verbs.h"\r
-#include "document.h"\r
-\r
-#define noLPEPATHPARAM_DEBUG\r
-\r
-namespace Inkscape {\r
-\r
-namespace LivePathEffect {\r
-\r
-PathParam::PathParam( const Glib::ustring& label, const Glib::ustring& tip,\r
- const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,\r
- Effect* effect, const gchar * default_value)\r
- : Parameter(label, tip, key, wr, effect)\r
-{\r
- _widget = NULL;\r
- _tooltips = NULL;\r
- defvalue = g_strdup(default_value);\r
- param_readSVGValue(defvalue);\r
-}\r
-\r
-PathParam::~PathParam()\r
-{\r
- if (_tooltips)\r
- delete _tooltips;\r
- // _widget is managed by GTK so do not delete!\r
-\r
- g_free(defvalue);\r
-}\r
-\r
-void\r
-PathParam::param_set_default()\r
-{\r
- param_readSVGValue(defvalue);\r
-}\r
-\r
-bool\r
-PathParam::param_readSVGValue(const gchar * strvalue)\r
-{\r
- if (strvalue) {\r
- Geom::Piecewise<Geom::D2<Geom::SBasis> > newpath;\r
- std::vector<Geom::Path> temppath = SVGD_to_2GeomPath(strvalue);\r
- for (unsigned int i=0; i < temppath.size(); i++) {\r
- newpath.concat( temppath[i].toPwSb() );\r
- }\r
- *( dynamic_cast<Geom::Piecewise<Geom::D2<Geom::SBasis> > *> (this) ) = newpath;\r
- return true;\r
- }\r
-\r
- return false;\r
-}\r
-\r
-gchar *\r
-PathParam::param_writeSVGValue() const\r
-{\r
- const std::vector<Geom::Path> temppath =\r
- Geom::path_from_piecewise(* dynamic_cast<const Geom::Piecewise<Geom::D2<Geom::SBasis> > *> (this), LPE_CONVERSION_TOLERANCE);\r
- gchar * svgd = SVGD_from_2GeomPath( temppath );\r
- return svgd;\r
-}\r
-\r
-Gtk::Widget *\r
-PathParam::param_getWidget()\r
-{\r
- if (!_widget) {\r
- _widget = Gtk::manage(new Gtk::HBox());\r
- _tooltips = new Gtk::Tooltips();\r
-\r
- Gtk::Label* pLabel = Gtk::manage(new Gtk::Label(param_label));\r
- static_cast<Gtk::HBox*>(_widget)->pack_start(*pLabel, true, true);\r
- _tooltips->set_tip(*pLabel, param_tooltip);\r
-\r
- Gtk::Widget* pIcon = Gtk::manage( sp_icon_get_icon( "draw_node", Inkscape::ICON_SIZE_BUTTON) );\r
- Gtk::Button * pButton = Gtk::manage(new Gtk::Button());\r
- pButton->set_relief(Gtk::RELIEF_NONE);\r
- pIcon->show();\r
- pButton->add(*pIcon);\r
- pButton->show();\r
- pButton->signal_clicked().connect(sigc::mem_fun(*this, &PathParam::on_edit_button_click));\r
- static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);\r
- _tooltips->set_tip(*pButton, _("Edit on-canvas"));\r
-#ifndef LPEPATHPARAM_DEBUG\r
- pButton->set_sensitive(false);\r
-#endif\r
-\r
- pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_PASTE, Inkscape::ICON_SIZE_BUTTON) );\r
- pButton = Gtk::manage(new Gtk::Button());\r
- pButton->set_relief(Gtk::RELIEF_NONE);\r
- pIcon->show();\r
- pButton->add(*pIcon);\r
- pButton->show();\r
- pButton->signal_clicked().connect(sigc::mem_fun(*this, &PathParam::on_paste_button_click));\r
- static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);\r
- _tooltips->set_tip(*pButton, _("Paste path"));\r
-\r
- static_cast<Gtk::HBox*>(_widget)->show_all_children();\r
-\r
- }\r
- return dynamic_cast<Gtk::Widget *> (_widget);\r
-}\r
-\r
-void\r
-PathParam::on_edit_button_click()\r
-{\r
- g_message("give this path to edit on canvas!");\r
-}\r
-\r
-void\r
-PathParam::on_paste_button_click()\r
-{\r
- // check if something is in the clipboard\r
- GSList * clipboard = sp_selection_get_clipboard();\r
- if (clipboard == NULL || clipboard->data == NULL) {\r
- SP_ACTIVE_DESKTOP->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Nothing on the clipboard."));\r
- return;\r
- }\r
-\r
- Inkscape::XML::Node *repr = (Inkscape::XML::Node *) clipboard->data;\r
- if (!strcmp (repr->name(), "svg:path")) {\r
- const char * svgd = repr->attribute("d");\r
- if (svgd) {\r
- param_write_to_repr(svgd);\r
- signal_path_pasted.emit();\r
- sp_document_done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT, \r
- _("Paste path parameter"));\r
- }\r
- } else {\r
- SP_ACTIVE_DESKTOP->messageStack()->flash(Inkscape::WARNING_MESSAGE, _("Clipboard does not contain a path."));\r
- }\r
-\r
-}\r
-\r
-void\r
-PathParam::param_write_to_repr(const char * svgd)\r
-{\r
- param_effect->getRepr()->setAttribute(param_key.c_str(), svgd);\r
-}\r
-\r
-\r
-} /* namespace LivePathEffect */\r
-\r
-} /* namespace Inkscape */\r
-\r
-/*\r
- Local Variables:\r
- mode:c++\r
- c-file-style:"stroustrup"\r
- c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))\r
- indent-tabs-mode:nil\r
- fill-column:99\r
- End:\r
-*/\r
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :\r
+/*
+ * Copyright (C) Johan Engelen 2007 <j.b.c.engelen@utwente.nl>
+ * Abhishek Sharma
+ *
+ * Released under GNU GPL, read the file 'COPYING' for more information
+ */
+
+#include "live_effects/parameter/path.h"
+#include "live_effects/effect.h"
+#include "svg/svg.h"
+#include <2geom/svg-path-parser.h>
+#include <2geom/sbasis-to-bezier.h>
+#include <2geom/pathvector.h>
+#include <2geom/d2.h>
+
+#include "ui/widget/point.h"
+#include "widgets/icon.h"
+#include <gtk/gtkstock.h>
+#include "selection-chemistry.h"
+#include "xml/repr.h"
+#include "desktop.h"
+#include "inkscape.h"
+#include "message-stack.h"
+#include "verbs.h"
+#include "document.h"
+
+// needed for on-canvas editting:
+#include "tools-switch.h"
+#include "shape-editor.h"
+#include "desktop-handles.h"
+#include "selection.h"
+// clipboard support
+#include "ui/clipboard.h"
+// required for linking to other paths
+#include "uri.h"
+#include "sp-shape.h"
+#include "sp-text.h"
+#include "display/curve.h"
+
+#include "ui/tool/node-tool.h"
+#include "ui/tool/multi-path-manipulator.h"
+#include "ui/tool/shape-record.h"
+
+
+namespace Inkscape {
+
+namespace LivePathEffect {
+
+PathParam::PathParam( const Glib::ustring& label, const Glib::ustring& tip,
+ const Glib::ustring& key, Inkscape::UI::Widget::Registry* wr,
+ Effect* effect, const gchar * default_value)
+ : Parameter(label, tip, key, wr, effect),
+ changed(true),
+ _pathvector(),
+ _pwd2(),
+ must_recalculate_pwd2(false),
+ href(NULL),
+ ref( (SPObject*)effect->getLPEObj() )
+{
+ defvalue = g_strdup(default_value);
+ param_readSVGValue(defvalue);
+ oncanvas_editable = true;
+
+ ref_changed_connection = ref.changedSignal().connect(sigc::mem_fun(*this, &PathParam::ref_changed));
+}
+
+PathParam::~PathParam()
+{
+ remove_link();
+
+ g_free(defvalue);
+}
+
+std::vector<Geom::Path> const &
+PathParam::get_pathvector()
+{
+ return _pathvector;
+}
+
+Geom::Piecewise<Geom::D2<Geom::SBasis> > const &
+PathParam::get_pwd2()
+{
+ ensure_pwd2();
+ return _pwd2;
+}
+
+void
+PathParam::param_set_default()
+{
+ param_readSVGValue(defvalue);
+}
+
+void
+PathParam::param_set_and_write_default()
+{
+ param_write_to_repr(defvalue);
+}
+
+bool
+PathParam::param_readSVGValue(const gchar * strvalue)
+{
+ if (strvalue) {
+ _pathvector.clear();
+ remove_link();
+ must_recalculate_pwd2 = true;
+
+ if (strvalue[0] == '#') {
+ if (href)
+ g_free(href);
+ href = g_strdup(strvalue);
+
+ // Now do the attaching, which emits the changed signal.
+ try {
+ ref.attach(Inkscape::URI(href));
+ } catch (Inkscape::BadURIException &e) {
+ g_warning("%s", e.what());
+ ref.detach();
+ _pathvector = sp_svg_read_pathv(defvalue);
+ }
+ } else {
+ _pathvector = sp_svg_read_pathv(strvalue);
+ }
+
+ emit_changed();
+ return true;
+ }
+
+ return false;
+}
+
+gchar *
+PathParam::param_getSVGValue() const
+{
+ if (href) {
+ return href;
+ } else {
+ gchar * svgd = sp_svg_write_path( _pathvector );
+ return svgd;
+ }
+}
+
+Gtk::Widget *
+PathParam::param_newWidget(Gtk::Tooltips * tooltips)
+{
+ Gtk::HBox * _widget = Gtk::manage(new Gtk::HBox());
+
+ Gtk::Label* pLabel = Gtk::manage(new Gtk::Label(param_label));
+ static_cast<Gtk::HBox*>(_widget)->pack_start(*pLabel, true, true);
+ tooltips->set_tip(*pLabel, param_tooltip);
+
+ Gtk::Widget* pIcon = Gtk::manage( sp_icon_get_icon( "tool-node-editor", Inkscape::ICON_SIZE_BUTTON) );
+ Gtk::Button * pButton = Gtk::manage(new Gtk::Button());
+ pButton->set_relief(Gtk::RELIEF_NONE);
+ pIcon->show();
+ pButton->add(*pIcon);
+ pButton->show();
+ pButton->signal_clicked().connect(sigc::mem_fun(*this, &PathParam::on_edit_button_click));
+ static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);
+ tooltips->set_tip(*pButton, _("Edit on-canvas"));
+
+ pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_COPY, Inkscape::ICON_SIZE_BUTTON) );
+ pButton = Gtk::manage(new Gtk::Button());
+ pButton->set_relief(Gtk::RELIEF_NONE);
+ pIcon->show();
+ pButton->add(*pIcon);
+ pButton->show();
+ pButton->signal_clicked().connect(sigc::mem_fun(*this, &PathParam::on_copy_button_click));
+ static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);
+ tooltips->set_tip(*pButton, _("Copy path"));
+
+ pIcon = Gtk::manage( sp_icon_get_icon( GTK_STOCK_PASTE, Inkscape::ICON_SIZE_BUTTON) );
+ pButton = Gtk::manage(new Gtk::Button());
+ pButton->set_relief(Gtk::RELIEF_NONE);
+ pIcon->show();
+ pButton->add(*pIcon);
+ pButton->show();
+ pButton->signal_clicked().connect(sigc::mem_fun(*this, &PathParam::on_paste_button_click));
+ static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);
+ tooltips->set_tip(*pButton, _("Paste path"));
+
+ pIcon = Gtk::manage( sp_icon_get_icon( "edit-clone", Inkscape::ICON_SIZE_BUTTON) );
+ pButton = Gtk::manage(new Gtk::Button());
+ pButton->set_relief(Gtk::RELIEF_NONE);
+ pIcon->show();
+ pButton->add(*pIcon);
+ pButton->show();
+ pButton->signal_clicked().connect(sigc::mem_fun(*this, &PathParam::on_link_button_click));
+ static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);
+ tooltips->set_tip(*pButton, _("Link to path"));
+
+ static_cast<Gtk::HBox*>(_widget)->show_all_children();
+
+ return dynamic_cast<Gtk::Widget *> (_widget);
+}
+
+void
+PathParam::param_editOncanvas(SPItem *item, SPDesktop * dt)
+{
+ using namespace Inkscape::UI;
+
+ // TODO remove the tools_switch atrocity.
+ if (!tools_isactive(dt, TOOLS_NODES)) {
+ tools_switch(dt, TOOLS_NODES);
+ }
+
+ InkNodeTool *nt = static_cast<InkNodeTool*>(dt->event_context);
+ std::set<ShapeRecord> shapes;
+ ShapeRecord r;
+
+ r.role = SHAPE_ROLE_LPE_PARAM;
+ r.edit_transform = item->i2d_affine(); // TODO is it right?
+ if (!href) {
+ r.item = reinterpret_cast<SPItem*>(param_effect->getLPEObj());
+ r.lpe_key = param_key;
+ } else {
+ r.item = ref.getObject();
+ }
+ shapes.insert(r);
+ nt->_multipath->setItems(shapes);
+}
+
+void
+PathParam::param_setup_nodepath(Inkscape::NodePath::Path *)
+{
+ // TODO this method should not exist at all!
+}
+
+void
+PathParam::addCanvasIndicators(SPLPEItem */*lpeitem*/, std::vector<Geom::PathVector> &hp_vec)
+{
+ hp_vec.push_back(_pathvector);
+}
+
+/*
+ * Only applies transform when not referring to other path!
+ */
+void
+PathParam::param_transform_multiply(Geom::Matrix const& postmul, bool /*set*/)
+{
+ // only apply transform when not referring to other path
+ if (!href) {
+ set_new_value( _pathvector * postmul, true );
+ }
+}
+
+/*
+ * See comments for set_new_value(std::vector<Geom::Path>).
+ */
+void
+PathParam::set_new_value (Geom::Piecewise<Geom::D2<Geom::SBasis> > const & newpath, bool write_to_svg)
+{
+ remove_link();
+ _pathvector = Geom::path_from_piecewise(newpath, LPE_CONVERSION_TOLERANCE);
+
+ if (write_to_svg) {
+ gchar * svgd = sp_svg_write_path( _pathvector );
+ param_write_to_repr(svgd);
+ g_free(svgd);
+
+ // After the whole "writing to svg avalanche of function calling": force value upon pwd2 and don't recalculate.
+ _pwd2 = newpath;
+ must_recalculate_pwd2 = false;
+ } else {
+ _pwd2 = newpath;
+ must_recalculate_pwd2 = false;
+ emit_changed();
+ }
+}
+
+/*
+ * This method sets new path data.
+ * If this PathParam refers to another path, this link is removed (and replaced with explicit path data).
+ *
+ * If write_to_svg = true :
+ * The new path data is written to SVG. In this case the signal_path_changed signal
+ * is not directly emited in this method, because writing to SVG
+ * triggers the LPEObject to which this belongs to call Effect::setParameter which calls
+ * PathParam::readSVGValue, which finally emits the signal_path_changed signal.
+ * If write_to_svg = false :
+ * The new path data is not written to SVG. This method will emit the signal_path_changed signal.
+ */
+void
+PathParam::set_new_value (std::vector<Geom::Path> const &newpath, bool write_to_svg)
+{
+ remove_link();
+ _pathvector = newpath;
+ must_recalculate_pwd2 = true;
+
+ if (write_to_svg) {
+ gchar * svgd = sp_svg_write_path( _pathvector );
+ param_write_to_repr(svgd);
+ g_free(svgd);
+ } else {
+ emit_changed();
+ }
+}
+
+void
+PathParam::ensure_pwd2()
+{
+ if (must_recalculate_pwd2) {
+ _pwd2.clear();
+ for (unsigned int i=0; i < _pathvector.size(); i++) {
+ _pwd2.concat( _pathvector[i].toPwSb() );
+ }
+
+ must_recalculate_pwd2 = false;
+ }
+}
+
+void
+PathParam::emit_changed()
+{
+ changed = true;
+ signal_path_changed.emit();
+}
+
+void
+PathParam::start_listening(SPObject * to)
+{
+ if ( to == NULL ) {
+ return;
+ }
+ linked_delete_connection = to->connectDelete(sigc::mem_fun(*this, &PathParam::linked_delete));
+ linked_modified_connection = to->connectModified(sigc::mem_fun(*this, &PathParam::linked_modified));
+ linked_modified(to, SP_OBJECT_MODIFIED_FLAG); // simulate linked_modified signal, so that path data is updated
+}
+
+void
+PathParam::quit_listening(void)
+{
+ linked_modified_connection.disconnect();
+ linked_delete_connection.disconnect();
+}
+
+void
+PathParam::ref_changed(SPObject */*old_ref*/, SPObject *new_ref)
+{
+ quit_listening();
+ if ( new_ref ) {
+ start_listening(new_ref);
+ }
+}
+
+void
+PathParam::remove_link()
+{
+ if (href) {
+ ref.detach();
+ g_free(href);
+ href = NULL;
+ }
+}
+
+void
+PathParam::linked_delete(SPObject */*deleted*/)
+{
+ quit_listening();
+ remove_link();
+ set_new_value (_pathvector, true);
+}
+
+void
+PathParam::linked_modified(SPObject *linked_obj, guint /*flags*/)
+{
+ SPCurve *curve = NULL;
+ if (SP_IS_SHAPE(linked_obj)) {
+ curve = SP_SHAPE(linked_obj)->getCurve();
+ }
+ if (SP_IS_TEXT(linked_obj)) {
+ curve = SP_TEXT(linked_obj)->getNormalizedBpath();
+ }
+
+ if (curve == NULL) {
+ // curve invalid, set default value
+ _pathvector = sp_svg_read_pathv(defvalue);
+ } else {
+ _pathvector = curve->get_pathvector();
+ curve->unref();
+ }
+
+ must_recalculate_pwd2 = true;
+ emit_changed();
+ SP_OBJECT(param_effect->getLPEObj())->requestModified(SP_OBJECT_MODIFIED_FLAG);
+}
+
+/* CALLBACK FUNCTIONS FOR THE BUTTONS */
+void
+PathParam::on_edit_button_click()
+{
+ SPItem * item = sp_desktop_selection(SP_ACTIVE_DESKTOP)->singleItem();
+ if (item != NULL) {
+ param_editOncanvas(item, SP_ACTIVE_DESKTOP);
+ }
+}
+
+void
+PathParam::paste_param_path(const char *svgd)
+{
+ // only recognize a non-null, non-empty string
+ if (svgd && *svgd) {
+ // remove possible link to path
+ remove_link();
+
+ param_write_to_repr(svgd);
+ signal_path_pasted.emit();
+ }
+}
+
+void
+PathParam::on_paste_button_click()
+{
+ Inkscape::UI::ClipboardManager *cm = Inkscape::UI::ClipboardManager::get();
+ Glib::ustring svgd = cm->getPathParameter(SP_ACTIVE_DESKTOP);
+ paste_param_path(svgd.data());
+ DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
+ _("Paste path parameter"));
+}
+
+void
+PathParam::on_copy_button_click()
+{
+ Inkscape::UI::ClipboardManager *cm = Inkscape::UI::ClipboardManager::get();
+ cm->copyPathParameter(this);
+}
+
+void
+PathParam::on_link_button_click()
+{
+ Inkscape::UI::ClipboardManager *cm = Inkscape::UI::ClipboardManager::get();
+ Glib::ustring pathid = cm->getShapeOrTextObjectId(SP_ACTIVE_DESKTOP);
+
+ if (pathid == "") {
+ return;
+ }
+
+ // add '#' at start to make it an uri.
+ pathid.insert(pathid.begin(), '#');
+ if ( href && strcmp(pathid.c_str(), href) == 0 ) {
+ // no change, do nothing
+ return;
+ } else {
+ // TODO:
+ // check if id really exists in document, or only in clipboard document: if only in clipboard then invalid
+ // check if linking to object to which LPE is applied (maybe delegated to PathReference
+
+ param_write_to_repr(pathid.c_str());
+ DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
+ _("Link path parameter to path"));
+ }
+}
+
+} /* namespace LivePathEffect */
+
+} /* namespace Inkscape */
+
+/*
+ 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 :