updated to latest trunk

(bzr r14876.2.4)

1 files changed, 253 insertions, 0 deletions

diff --git a/src/live_effects/parameter/item.cpp b/src/live_effects/parameter/item.cpp
new file mode 100644
index 000000000..7b40f4540
--- /dev/null
+++ b/src/live_effects/parameter/item.cpp
@@ -0,0 +1,253 @@
+/*
+ * 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/item.h"
+
+#include <glibmm/i18n.h>
+
+#include <gtkmm/button.h>
+#include <gtkmm/label.h>
+
+#include "bad-uri-exception.h"
+#include "ui/widget/point.h"
+
+#include "live_effects/effect.h"
+#include "svg/svg.h"
+
+#include "widgets/icon.h"
+#include "selection-chemistry.h"
+#include "xml/repr.h"
+#include "desktop.h"
+#include "inkscape.h"
+#include "message-stack.h"
+
+// clipboard support
+#include "ui/clipboard.h"
+// required for linking to other paths
+#include "uri.h"
+
+#include "ui/icon-names.h"
+
+namespace Inkscape {
+
+namespace LivePathEffect {
+
+ItemParam::ItemParam( 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),
+      href(NULL),
+      ref( (SPObject*)effect->getLPEObj() )
+{
+    defvalue = g_strdup(default_value);
+    ref_changed_connection = ref.changedSignal().connect(sigc::mem_fun(*this, &ItemParam::ref_changed));
+}
+
+ItemParam::~ItemParam()
+{
+    remove_link();
+    g_free(defvalue);
+}
+
+void
+ItemParam::param_set_default()
+{
+    param_readSVGValue(defvalue);
+}
+
+void
+ItemParam::param_update_default(const gchar * default_value){
+    defvalue = strdup(default_value);
+}
+
+void
+ItemParam::param_set_and_write_default()
+{
+    param_write_to_repr(defvalue);
+}
+
+bool
+ItemParam::param_readSVGValue(const gchar * strvalue)
+{
+    if (strvalue) {
+        remove_link();
+        if (strvalue[0] == '#') {
+            if (href)
+                g_free(href);
+            href = g_strdup(strvalue);
+            try {
+                ref.attach(Inkscape::URI(href));
+                //lp:1299948
+                SPItem* i = ref.getObject();
+                if (i) {
+                    linked_modified_callback(i, SP_OBJECT_MODIFIED_FLAG);
+                } // else: document still processing new events. Repr of the linked object not created yet.
+            } catch (Inkscape::BadURIException &e) {
+                g_warning("%s", e.what());
+                ref.detach();
+            }
+        }
+        emit_changed();
+        return true;
+    }
+
+    return false;
+}
+
+gchar *
+ItemParam::param_getSVGValue() const
+{
+    return g_strdup(href);
+}
+
+Gtk::Widget *
+ItemParam::param_newWidget()
+{
+    Gtk::HBox * _widget = Gtk::manage(new Gtk::HBox());
+    Gtk::Widget*  pIcon = Gtk::manage( sp_icon_get_icon( INKSCAPE_ICON("edit-clone"), Inkscape::ICON_SIZE_BUTTON) );
+    Gtk::Button * pButton = Gtk::manage(new Gtk::Button());
+    Gtk::Label* pLabel = Gtk::manage(new Gtk::Label(param_label));
+    static_cast<Gtk::HBox*>(_widget)->pack_start(*pLabel, true, true);
+    pLabel->set_tooltip_text(param_tooltip);
+    pButton->set_relief(Gtk::RELIEF_NONE);
+    pIcon->show();
+    pButton->add(*pIcon);
+    pButton->show();
+    pButton->signal_clicked().connect(sigc::mem_fun(*this, &ItemParam::on_link_button_click));
+    static_cast<Gtk::HBox*>(_widget)->pack_start(*pButton, true, true);
+    pButton->set_tooltip_text(_("Link to item on clipboard"));
+
+    static_cast<Gtk::HBox*>(_widget)->show_all_children();
+
+    return dynamic_cast<Gtk::Widget *> (_widget);
+}
+
+void
+ItemParam::emit_changed()
+{
+    changed = true;
+    signal_item_changed.emit();
+}
+
+
+void
+ItemParam::addCanvasIndicators(SPLPEItem const*/*lpeitem*/, std::vector<Geom::PathVector> &hp_vec)
+{
+}
+
+
+void
+ItemParam::start_listening(SPObject * to)
+{
+    if ( to == NULL ) {
+        return;
+    }
+    linked_delete_connection = to->connectDelete(sigc::mem_fun(*this, &ItemParam::linked_delete));
+    linked_modified_connection = to->connectModified(sigc::mem_fun(*this, &ItemParam::linked_modified));
+    if (SP_IS_ITEM(to)) {
+        linked_transformed_connection = SP_ITEM(to)->connectTransformed(sigc::mem_fun(*this, &ItemParam::linked_transformed));
+    }
+    linked_modified(to, SP_OBJECT_MODIFIED_FLAG); // simulate linked_modified signal, so that path data is updated
+}
+
+void
+ItemParam::quit_listening(void)
+{
+    linked_modified_connection.disconnect();
+    linked_delete_connection.disconnect();
+    linked_transformed_connection.disconnect();
+}
+
+void
+ItemParam::ref_changed(SPObject */*old_ref*/, SPObject *new_ref)
+{
+    quit_listening();
+    if ( new_ref ) {
+        start_listening(new_ref);
+    }
+}
+
+void
+ItemParam::remove_link()
+{
+    if (href) {
+        ref.detach();
+        g_free(href);
+        href = NULL;
+    }
+}
+
+void
+ItemParam::linked_delete(SPObject */*deleted*/)
+{
+    quit_listening();
+    remove_link();
+}
+
+void ItemParam::linked_modified(SPObject *linked_obj, guint flags)
+{
+    linked_modified_callback(linked_obj, flags);
+}
+
+void ItemParam::linked_transformed(Geom::Affine const *rel_transf, SPItem *moved_item)
+{
+    linked_transformed_callback(rel_transf, moved_item);
+}
+
+void
+ItemParam::linked_modified_callback(SPObject *linked_obj, guint /*flags*/)
+{
+    emit_changed();
+    SP_OBJECT(param_effect->getLPEObj())->requestModified(SP_OBJECT_MODIFIED_FLAG);
+}
+
+void
+ItemParam::on_link_button_click()
+{
+    Inkscape::UI::ClipboardManager *cm = Inkscape::UI::ClipboardManager::get();
+    const gchar * iid = cm->getFirstObjectID();
+    if (!iid) {
+        return;
+    }
+    
+    Glib::ustring itemid(iid);
+
+    if (itemid.empty()) {
+        return;
+    }
+
+    // add '#' at start to make it an uri.
+    itemid.insert(itemid.begin(), '#');
+    if ( href && strcmp(itemid.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(itemid.c_str());
+        DocumentUndo::done(param_effect->getSPDoc(), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
+                           _("Link item 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 :