Code

Add option to align & distribute dialog to treat the selection as a group (closes...
[inkscape.git] / src / ui / dialog / livepatheffect-editor.cpp
index 43cdb726cd002078a636861f99e1b78c799cb321..44f37083b0402f28bbe075ff130b84f028afc47e 100644 (file)
 
 #include <glibmm/i18n.h>
 #include "livepatheffect-editor.h"
+#include "ui/widget/imagetoggler.h"
 #include "verbs.h"
 #include "selection.h"
 #include "sp-shape.h"
 #include "sp-item-group.h"
 #include "sp-path.h"
 #include "sp-rect.h"
+#include "sp-lpe-item.h"
 #include "path-chemistry.h"
 #include "live_effects/effect.h"
 #include "live_effects/lpeobject.h"
 #include "inkscape.h"
 #include "desktop-handles.h"
 #include "desktop.h"
-#include "document-private.h"
+#include "document.h"
 #include "xml/node.h"
-#include "xml/document.h"
+#include <gtkmm/stock.h>
+#include <gtkmm/toolbar.h>
+
+#include "live_effects/lpeobject-reference.h"
 
 namespace Inkscape {
 class Application;
@@ -51,49 +56,112 @@ static void lpeeditor_selection_changed (Inkscape::Selection * selection, gpoint
     lpeeditor->onSelectionChanged(selection);
 }
 
+static void lpeeditor_selection_modified (Inkscape::Selection * selection, guint /*flags*/, gpointer data)
+{
+    LivePathEffectEditor *lpeeditor = static_cast<LivePathEffectEditor *>(data);
+    lpeeditor->onSelectionChanged(selection);
+}
+
 
 /*#######################
  * LivePathEffectEditor
  */
 
-LivePathEffectEditor::LivePathEffectEditor() 
+LivePathEffectEditor::LivePathEffectEditor()
     : UI::Widget::Panel("", "dialogs.livepatheffect", SP_VERB_DIALOG_LIVE_PATH_EFFECT),
+      lpe_list_locked(false),
       combo_effecttype(Inkscape::LivePathEffect::LPETypeConverter),
-      button_apply(_("_Apply"), _("Apply chosen effect to selection")),
-      button_remove(_("_Remove"), _("Remove effect from selection")),
       effectwidget(NULL),
       explain_label("", Gtk::ALIGN_CENTER),
       effectapplication_frame(_("Apply new effect")),
       effectcontrol_frame(_("Current effect")),
-      current_desktop(NULL)
+      effectlist_frame(_("Effect list")),
+      button_up(Gtk::Stock::GO_UP),
+      button_down(Gtk::Stock::GO_DOWN),
+      button_apply(Gtk::Stock::ADD),
+      button_remove(Gtk::Stock::REMOVE),
+      current_desktop(NULL),
+      current_lpeitem(NULL)
 {
     Gtk::Box *contents = _getContents();
     contents->set_spacing(4);
 
+    //Add the TreeView, inside a ScrolledWindow, with the button underneath:
+    scrolled_window.add(effectlist_view);
+    //Only show the scrollbars when they are necessary:
+    scrolled_window.set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
+
     effectapplication_hbox.set_spacing(4);
     effectcontrol_vbox.set_spacing(4);
+    effectlist_vbox.set_spacing(4);
 
     effectapplication_hbox.pack_start(combo_effecttype, true, true);
     effectapplication_hbox.pack_start(button_apply, true, true);
     effectapplication_frame.add(effectapplication_hbox);
 
+    effectlist_vbox.pack_start(scrolled_window, Gtk::PACK_EXPAND_WIDGET);
+    effectlist_vbox.pack_end(toolbar, Gtk::PACK_SHRINK);
+   // effectlist_vbox.pack_end(button_hbox, Gtk::PACK_SHRINK);
+    effectlist_frame.add(effectlist_vbox);
+
     effectcontrol_vbox.pack_start(explain_label, true, true);
-    effectcontrol_vbox.pack_end(button_remove, true, true);
     effectcontrol_frame.add(effectcontrol_vbox);
 
+ //   button_hbox.pack_start(button_up, true, true);
+ //   button_hbox.pack_start(button_down, true, true);
+ //   button_hbox.pack_end(button_remove, true, true);
+    toolbar.set_toolbar_style(Gtk::TOOLBAR_ICONS);
+ // Add toolbar items to toolbar
+    toolbar.append(button_up);
+    toolbar.append(button_down);
+    toolbar.append(button_remove);
+
+
+    // Add toolbar
+    //add_toolbar(toolbar);
+    toolbar.show_all(); //Show the toolbar and all its child widgets.
+
+
+    //Create the Tree model:
+    effectlist_store = Gtk::ListStore::create(columns);
+    effectlist_view.set_model(effectlist_store);
+
+    effectlist_view.set_headers_visible(false);
+
+    // Handle tree selections
+    effectlist_selection = effectlist_view.get_selection();
+    effectlist_selection->signal_changed().connect( sigc::mem_fun(*this, &LivePathEffectEditor::on_effect_selection_changed) );
+
+    //Add the visibility icon column:
+    Inkscape::UI::Widget::ImageToggler *eyeRenderer = manage( new Inkscape::UI::Widget::ImageToggler("visible", "hidden") );
+    int visibleColNum = effectlist_view.append_column("is_visible", *eyeRenderer) - 1;
+    eyeRenderer->signal_toggled().connect( sigc::mem_fun(*this, &LivePathEffectEditor::on_visibility_toggled) );
+    eyeRenderer->property_activatable() = true;
+    Gtk::TreeViewColumn* col = effectlist_view.get_column(visibleColNum);
+    if ( col ) {
+        col->add_attribute( eyeRenderer->property_active(), columns.col_visible );
+    }
+
+    //Add the effect name column:
+    effectlist_view.append_column("Effect", columns.col_name);
+
     contents->pack_start(effectapplication_frame, false, false);
+    contents->pack_start(effectlist_frame, true, true);
     contents->pack_start(effectcontrol_frame, false, false);
 
     // connect callback functions to buttons
     button_apply.signal_clicked().connect(sigc::mem_fun(*this, &LivePathEffectEditor::onApply));
     button_remove.signal_clicked().connect(sigc::mem_fun(*this, &LivePathEffectEditor::onRemove));
 
+    button_up.signal_clicked().connect(sigc::mem_fun(*this, &LivePathEffectEditor::onUp));
+    button_down.signal_clicked().connect(sigc::mem_fun(*this, &LivePathEffectEditor::onDown));
+
     show_all_children();
 
-    button_remove.hide();
+    //button_remove.hide();
 }
 
-LivePathEffectEditor::~LivePathEffectEditor() 
+LivePathEffectEditor::~LivePathEffectEditor()
 {
     if (effectwidget) {
         effectcontrol_vbox.remove(*effectwidget);
@@ -103,6 +171,7 @@ LivePathEffectEditor::~LivePathEffectEditor()
 
     if (current_desktop) {
         selection_changed_connection.disconnect();
+        selection_modified_connection.disconnect();
     }
 }
 
@@ -126,6 +195,17 @@ LivePathEffectEditor::showParams(LivePathEffect::Effect* effect)
     // fixme: add resizing of dialog
 }
 
+void
+LivePathEffectEditor::selectInList(LivePathEffect::Effect* effect)
+{
+    Gtk::TreeNodeChildren chi = effectlist_view.get_model()->children();
+    for (Gtk::TreeIter ci = chi.begin() ; ci != chi.end(); ci++) {
+        if (ci->get_value(columns.lperef)->lpeobject->lpe == effect)
+            effectlist_view.get_selection()->select(ci);
+    }
+}
+
+
 void
 LivePathEffectEditor::showText(Glib::ustring const &str)
 {
@@ -136,7 +216,7 @@ LivePathEffectEditor::showText(Glib::ustring const &str)
     }
 
     explain_label.set_label(str);
-    button_remove.hide();
+    //button_remove.hide();
 
     // fixme: do resizing of dialog ?
 }
@@ -147,21 +227,41 @@ LivePathEffectEditor::set_sensitize_all(bool sensitive)
     combo_effecttype.set_sensitive(sensitive);
     button_apply.set_sensitive(sensitive);
     button_remove.set_sensitive(sensitive);
+    effectlist_view.set_sensitive(sensitive);
+    button_up.set_sensitive(sensitive);
+    button_down.set_sensitive(sensitive);
 }
 
+
 void
 LivePathEffectEditor::onSelectionChanged(Inkscape::Selection *sel)
 {
+    if (lpe_list_locked) {
+        // this was triggered by selecting a row in the list, so skip reloading
+        lpe_list_locked = false;
+        return;
+    } 
+
+    effectlist_store->clear();
+    current_lpeitem = NULL;
+
     if ( sel && !sel->isEmpty() ) {
         SPItem *item = sel->singleItem();
         if ( item ) {
             if ( SP_IS_LPE_ITEM(item) ) {
                 SPLPEItem *lpeitem = SP_LPE_ITEM(item);
-                LivePathEffectObject *lpeobj = sp_lpe_item_get_livepatheffectobject(lpeitem);
+
+                effect_list_reload(lpeitem);
+
+                current_lpeitem = lpeitem;
+
                 set_sensitize_all(true);
-                if (lpeobj) {
-                    if (lpeobj->lpe) {
-                        showParams(lpeobj->lpe);
+                if ( sp_lpe_item_has_path_effect(lpeitem) ) {
+                    Inkscape::LivePathEffect::Effect *lpe = sp_lpe_item_get_current_lpe(lpeitem);
+                    if (lpe) {
+                        showParams(lpe);
+                        lpe_list_locked = true; 
+                        selectInList(lpe);
                     } else {
                         showText(_("Unknown effect is applied"));
                     }
@@ -169,10 +269,8 @@ LivePathEffectEditor::onSelectionChanged(Inkscape::Selection *sel)
                     showText(_("No effect applied"));
                     button_remove.set_sensitive(false);
                 }
-            }
-              else
-            {
-                showText(_("Item is not compound by paths"));
+            } else {
+                showText(_("Item is not a path or shape"));
                 set_sensitize_all(false);
             }
         } else {
@@ -185,7 +283,27 @@ LivePathEffectEditor::onSelectionChanged(Inkscape::Selection *sel)
     }
 }
 
-void 
+/*
+ * First clears the effectlist_store, then appends all effects from the effectlist.
+ */
+void
+LivePathEffectEditor::effect_list_reload(SPLPEItem *lpeitem)
+{
+    effectlist_store->clear();
+
+    PathEffectList effectlist = sp_lpe_item_get_effect_list(lpeitem);
+    PathEffectList::iterator it;
+    for( it = effectlist.begin() ; it!=effectlist.end(); it++ )
+    {
+         Gtk::TreeModel::Row row = *(effectlist_store->append());
+         row[columns.col_name] = (*it)->lpeobject->lpe->getName();
+         row[columns.lperef] = *it;
+         row[columns.col_visible] = (*it)->lpeobject->lpe->isVisible();
+    }
+}
+
+
+void
 LivePathEffectEditor::setDesktop(SPDesktop *desktop)
 {
     Panel::setDesktop(desktop);
@@ -196,6 +314,7 @@ LivePathEffectEditor::setDesktop(SPDesktop *desktop)
 
     if (current_desktop) {
         selection_changed_connection.disconnect();
+        selection_modified_connection.disconnect();
     }
 
     current_desktop = desktop;
@@ -203,6 +322,8 @@ LivePathEffectEditor::setDesktop(SPDesktop *desktop)
         Inkscape::Selection *selection = sp_desktop_selection(desktop);
         selection_changed_connection = selection->connectChanged(
             sigc::bind (sigc::ptr_fun(&lpeeditor_selection_changed), this ) );
+        selection_modified_connection = selection->connectModified(
+            sigc::bind (sigc::ptr_fun(&lpeeditor_selection_modified), this ) );
 
         onSelectionChanged(selection);
     } else {
@@ -233,25 +354,14 @@ LivePathEffectEditor::onApply()
 
             // If item is a SPRect, convert it to path first:
             if ( SP_IS_RECT(item) ) {
-                sp_selected_path_to_curves(false);
+                sp_selected_path_to_curves(current_desktop, false);
                 item = sel->singleItem(); // get new item
             }
 
-            // Path effect definition
-            Inkscape::XML::Document *xml_doc = sp_document_repr_doc(doc);
-            Inkscape::XML::Node *repr = xml_doc->createElement("inkscape:path-effect");
-            repr->setAttribute("effect", data->key.c_str() );
-
-            SP_OBJECT_REPR(SP_DOCUMENT_DEFS(doc))->addChild(repr, NULL); // adds to <defs> and assigns the 'id' attribute
-            const gchar * repr_id = repr->attribute("id");
-            Inkscape::GC::release(repr);
+            LivePathEffect::Effect::createAndApply(data->key.c_str(), doc, item);
 
-            gchar *href = g_strdup_printf("#%s", repr_id);
-            sp_lpe_item_set_path_effect(SP_LPE_ITEM(item), href, true);
-            g_free(href);
-
-            sp_document_done(doc, SP_VERB_DIALOG_LIVE_PATH_EFFECT, 
-                             _("Create and apply path effect"));
+            sp_document_done(doc, SP_VERB_DIALOG_LIVE_PATH_EFFECT,
+                     _("Create and apply path effect"));
 
             onSelectionChanged(sel);
         }
@@ -265,15 +375,82 @@ LivePathEffectEditor::onRemove()
     if ( sel && !sel->isEmpty() ) {
         SPItem *item = sel->singleItem();
         if ( item && SP_IS_LPE_ITEM(item) ) {
-            sp_lpe_item_remove_path_effect(SP_LPE_ITEM(item), false);
-            showText(_("No effect applied"));
-            button_remove.set_sensitive(false);
-            sp_document_done ( sp_desktop_document (current_desktop), SP_VERB_DIALOG_LIVE_PATH_EFFECT, 
+            sp_lpe_item_remove_current_path_effect(SP_LPE_ITEM(item), false);
+
+            sp_document_done ( sp_desktop_document (current_desktop), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
                                _("Remove path effect") );
+
+            effect_list_reload(SP_LPE_ITEM(item));
+        }
+    }
+}
+
+void LivePathEffectEditor::onUp()
+{
+    Inkscape::Selection *sel = _getSelection();
+    if ( sel && !sel->isEmpty() ) {
+        SPItem *item = sel->singleItem();
+        if ( item && SP_IS_LPE_ITEM(item) ) {
+            sp_lpe_item_up_current_path_effect(SP_LPE_ITEM(item));
+
+            sp_document_done ( sp_desktop_document (current_desktop), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
+                               _("Move path effect up") );
+
+            effect_list_reload(SP_LPE_ITEM(item));
         }
     }
 }
 
+void LivePathEffectEditor::onDown()
+{
+    Inkscape::Selection *sel = _getSelection();
+    if ( sel && !sel->isEmpty() ) {
+        SPItem *item = sel->singleItem();
+        if ( item && SP_IS_LPE_ITEM(item) ) {
+            sp_lpe_item_down_current_path_effect(SP_LPE_ITEM(item));
+
+            sp_document_done ( sp_desktop_document (current_desktop), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
+                               _("Move path effect down") );
+
+            effect_list_reload(SP_LPE_ITEM(item));
+        }
+    }
+}
+
+void LivePathEffectEditor::on_effect_selection_changed()
+{
+    Glib::RefPtr<Gtk::TreeSelection> sel = effectlist_view.get_selection();
+    if (sel->count_selected_rows () == 0)
+        return;
+
+    Gtk::TreeModel::iterator it = sel->get_selected();
+    LivePathEffect::LPEObjectReference * lperef = (*it)[columns.lperef];
+
+    if (lperef && current_lpeitem) {
+        lpe_list_locked = true; // prevent reload of the list which would lose selection
+        sp_lpe_item_set_current_path_effect(current_lpeitem, lperef);
+        showParams(lperef->lpeobject->lpe);
+    }
+}
+
+void LivePathEffectEditor::on_visibility_toggled( Glib::ustring const& str )
+{
+    Gtk::TreeModel::Children::iterator iter = effectlist_view.get_model()->get_iter(str);
+    Gtk::TreeModel::Row row = *iter;
+
+    LivePathEffect::LPEObjectReference * lpeobjref = row[columns.lperef];
+
+    if ( lpeobjref ) {
+        bool newValue = !row[columns.col_visible];
+        row[columns.col_visible] = newValue;
+        /* FIXME: this explicit writing to SVG is wrong. The lpe_item should have a method to disable/enable an effect within its stack.
+         * So one can call:  lpe_item->setActive(lpeobjref->lpeobject); */
+        lpeobjref->lpeobject->lpe->getRepr()->setAttribute("is_visible", newValue ? "true" : "false");
+        sp_document_done( sp_desktop_document(current_desktop), SP_VERB_DIALOG_LIVE_PATH_EFFECT,
+                          newValue ? _("Activate path effect") : _("Deactivate path effect"));
+    }
+}
+
 } // namespace Dialog
 } // namespace UI
 } // namespace Inkscape