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-rw-r--r--src/object/sp-namedview.cpp1125
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diff --git a/src/object/sp-namedview.cpp b/src/object/sp-namedview.cpp
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+++ b/src/object/sp-namedview.cpp
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * <sodipodi:namedview> implementation
+ *
+ * Authors:
+ * Lauris Kaplinski <lauris@kaplinski.com>
+ * bulia byak <buliabyak@users.sf.net>
+ * Jon A. Cruz <jon@joncruz.org>
+ * Abhishek Sharma
+ *
+ * Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl>
+ * Copyright (C) 1999-2013 Authors
+ * Copyright (C) 2000-2001 Ximian, Inc.
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include "sp-namedview.h"
+
+#include <cstring>
+#include <string>
+
+#include <2geom/transforms.h>
+
+#include <gtkmm/window.h>
+
+#include "attributes.h"
+#include "conn-avoid-ref.h" // for defaultConnSpacing.
+#include "desktop-events.h"
+#include "desktop.h"
+#include "document-undo.h"
+#include "document.h"
+#include "enums.h"
+#include "event-log.h"
+#include "layer-manager.h"
+#include "page-manager.h"
+#include "preferences.h"
+#include "sp-guide.h"
+#include "sp-page.h"
+#include "sp-item-group.h"
+#include "sp-root.h"
+
+#include "actions/actions-canvas-snapping.h"
+#include "display/control/canvas-grid.h"
+#include "display/control/canvas-page.h"
+#include "svg/svg-color.h"
+#include "ui/monitor.h"
+#include "ui/widget/canvas.h"
+#include "util/units.h"
+#include "xml/repr.h"
+
+using Inkscape::DocumentUndo;
+using Inkscape::Util::unit_table;
+
+#define DEFAULTGRIDCOLOR 0x3f3fff25
+#define DEFAULTGRIDEMPCOLOR 0x3f3fff60
+#define DEFAULTGRIDEMPSPACING 5
+#define DEFAULTGUIDECOLOR 0x0086e599
+#define DEFAULTGUIDEHICOLOR 0xff00007f
+#define DEFAULTDESKCOLOR 0xd1d1d1ff
+
+SPNamedView::SPNamedView()
+ : SPObjectGroup()
+ , snap_manager(this, get_snapping_preferences())
+ , showguides(true)
+ , lockguides(false)
+ , grids_visible(false)
+ , desk_checkerboard(false)
+{
+ this->zoom = 0;
+ this->guidecolor = 0;
+ this->guidehicolor = 0;
+ this->views.clear();
+ // this->page_size_units = nullptr;
+ this->window_x = 0;
+ this->cy = 0;
+ this->window_y = 0;
+ this->display_units = nullptr;
+ // this->page_size_units = nullptr;
+ this->cx = 0;
+ this->rotation = 0;
+ this->window_width = 0;
+ this->window_height = 0;
+ this->window_maximized = 0;
+ this->desk_color = DEFAULTDESKCOLOR;
+
+ this->editable = TRUE;
+ this->guides.clear();
+ this->viewcount = 0;
+ this->grids.clear();
+
+ this->default_layer_id = 0;
+
+ this->connector_spacing = defaultConnSpacing;
+
+ this->_viewport = new Inkscape::CanvasPage();
+ this->_viewport->hide();
+}
+
+SPNamedView::~SPNamedView()
+{
+ delete _viewport;
+}
+
+static void sp_namedview_generate_old_grid(SPNamedView * /*nv*/, SPDocument *document, Inkscape::XML::Node *repr) {
+ bool old_grid_settings_present = false;
+
+ // set old settings
+ const char* gridspacingx = "1px";
+ const char* gridspacingy = "1px";
+ const char* gridoriginy = "0px";
+ const char* gridoriginx = "0px";
+ const char* gridempspacing = "5";
+ const char* gridcolor = "#3f3fff";
+ const char* gridempcolor = "#3f3fff";
+ const char* gridopacity = "0.15";
+ const char* gridempopacity = "0.38";
+
+ const char* value = nullptr;
+ if ((value = repr->attribute("gridoriginx"))) {
+ gridoriginx = value;
+ old_grid_settings_present = true;
+ }
+ if ((value = repr->attribute("gridoriginy"))) {
+ gridoriginy = value;
+ old_grid_settings_present = true;
+ }
+ if ((value = repr->attribute("gridspacingx"))) {
+ gridspacingx = value;
+ old_grid_settings_present = true;
+ }
+ if ((value = repr->attribute("gridspacingy"))) {
+ gridspacingy = value;
+ old_grid_settings_present = true;
+ }
+ if ((value = repr->attribute("gridcolor"))) {
+ gridcolor = value;
+ old_grid_settings_present = true;
+ }
+ if ((value = repr->attribute("gridempcolor"))) {
+ gridempcolor = value;
+ old_grid_settings_present = true;
+ }
+ if ((value = repr->attribute("gridempspacing"))) {
+ gridempspacing = value;
+ old_grid_settings_present = true;
+ }
+ if ((value = repr->attribute("gridopacity"))) {
+ gridopacity = value;
+ old_grid_settings_present = true;
+ }
+ if ((value = repr->attribute("gridempopacity"))) {
+ gridempopacity = value;
+ old_grid_settings_present = true;
+ }
+
+ if (old_grid_settings_present) {
+ // generate new xy grid with the correct settings
+ // first create the child xml node, then hook it to repr. This order is important, to not set off listeners to repr before the new node is complete.
+
+ Inkscape::XML::Document *xml_doc = document->getReprDoc();
+ Inkscape::XML::Node *newnode = xml_doc->createElement("inkscape:grid");
+ newnode->setAttribute("id", "GridFromPre046Settings");
+ newnode->setAttribute("type", Inkscape::CanvasGrid::getSVGName(Inkscape::GRID_RECTANGULAR));
+ newnode->setAttribute("originx", gridoriginx);
+ newnode->setAttribute("originy", gridoriginy);
+ newnode->setAttribute("spacingx", gridspacingx);
+ newnode->setAttribute("spacingy", gridspacingy);
+ newnode->setAttribute("color", gridcolor);
+ newnode->setAttribute("empcolor", gridempcolor);
+ newnode->setAttribute("opacity", gridopacity);
+ newnode->setAttribute("empopacity", gridempopacity);
+ newnode->setAttribute("empspacing", gridempspacing);
+
+ repr->appendChild(newnode);
+ Inkscape::GC::release(newnode);
+
+ // remove all old settings
+ repr->removeAttribute("gridoriginx");
+ repr->removeAttribute("gridoriginy");
+ repr->removeAttribute("gridspacingx");
+ repr->removeAttribute("gridspacingy");
+ repr->removeAttribute("gridcolor");
+ repr->removeAttribute("gridempcolor");
+ repr->removeAttribute("gridopacity");
+ repr->removeAttribute("gridempopacity");
+ repr->removeAttribute("gridempspacing");
+
+// SPDocumentUndo::done(doc, _("Create new grid from pre0.46 grid settings"), "");
+ }
+}
+
+void SPNamedView::build(SPDocument *document, Inkscape::XML::Node *repr) {
+ SPObjectGroup::build(document, repr);
+
+ this->readAttr(SPAttr::INKSCAPE_DOCUMENT_UNITS);
+ this->readAttr(SPAttr::UNITS);
+ this->readAttr(SPAttr::VIEWONLY);
+ this->readAttr(SPAttr::SHOWGUIDES);
+ this->readAttr(SPAttr::SHOWGRIDS);
+ this->readAttr(SPAttr::GRIDTOLERANCE);
+ this->readAttr(SPAttr::GUIDETOLERANCE);
+ this->readAttr(SPAttr::OBJECTTOLERANCE);
+ this->readAttr(SPAttr::ALIGNMENTTOLERANCE);
+ this->readAttr(SPAttr::DISTRIBUTIONTOLERANCE);
+ this->readAttr(SPAttr::GUIDECOLOR);
+ this->readAttr(SPAttr::GUIDEOPACITY);
+ this->readAttr(SPAttr::GUIDEHICOLOR);
+ this->readAttr(SPAttr::GUIDEHIOPACITY);
+ this->readAttr(SPAttr::SHOWBORDER);
+ this->readAttr(SPAttr::SHOWPAGESHADOW);
+ this->readAttr(SPAttr::BORDERLAYER);
+ this->readAttr(SPAttr::BORDERCOLOR);
+ this->readAttr(SPAttr::BORDEROPACITY);
+ this->readAttr(SPAttr::PAGECOLOR);
+ this->readAttr(SPAttr::INKSCAPE_PAGEOPACITY);
+ this->readAttr(SPAttr::INKSCAPE_DESK_COLOR);
+ this->readAttr(SPAttr::INKSCAPE_DESK_CHECKERBOARD);
+ this->readAttr(SPAttr::INKSCAPE_PAGESHADOW);
+ this->readAttr(SPAttr::INKSCAPE_ZOOM);
+ this->readAttr(SPAttr::INKSCAPE_ROTATION);
+ this->readAttr(SPAttr::INKSCAPE_CX);
+ this->readAttr(SPAttr::INKSCAPE_CY);
+ this->readAttr(SPAttr::INKSCAPE_WINDOW_WIDTH);
+ this->readAttr(SPAttr::INKSCAPE_WINDOW_HEIGHT);
+ this->readAttr(SPAttr::INKSCAPE_WINDOW_X);
+ this->readAttr(SPAttr::INKSCAPE_WINDOW_Y);
+ this->readAttr(SPAttr::INKSCAPE_WINDOW_MAXIMIZED);
+ this->readAttr(SPAttr::INKSCAPE_CURRENT_LAYER);
+ this->readAttr(SPAttr::INKSCAPE_CONNECTOR_SPACING);
+ this->readAttr(SPAttr::INKSCAPE_LOCKGUIDES);
+
+ /* Construct guideline and pages list */
+ for (auto &child : children) {
+ if (auto guide = dynamic_cast<SPGuide *>(&child)) {
+ this->guides.push_back(guide);
+ //g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
+ guide->setColor(this->guidecolor);
+ guide->setHiColor(this->guidehicolor);
+ guide->readAttr(SPAttr::INKSCAPE_COLOR);
+ }
+ if (auto page = dynamic_cast<SPPage *>(&child)) {
+ document->getPageManager().addPage(page);
+ }
+ }
+
+ // backwards compatibility with grid settings (pre 0.46)
+ sp_namedview_generate_old_grid(this, document, repr);
+}
+
+void SPNamedView::release() {
+ this->guides.clear();
+
+ // delete grids:
+ for(auto grid : this->grids)
+ delete grid;
+ this->grids.clear();
+ SPObjectGroup::release();
+}
+
+void SPNamedView::set_desk_color(SPDesktop* desktop) {
+ if (desktop) {
+ if (desk_checkerboard) {
+ desktop->getCanvas()->set_background_checkerboard(desk_color);
+ } else {
+ desktop->getCanvas()->set_background_color(desk_color);
+ }
+ }
+}
+
+void SPNamedView::modified(unsigned int flags)
+{
+ // Copy the page style for the default viewport attributes
+ auto &page_manager = document->getPageManager();
+ if (flags & SP_OBJECT_MODIFIED_FLAG) {
+ page_manager.setDefaultAttributes(_viewport);
+ updateViewPort();
+ // Pass modifications to the page manager to update the page items.
+ for (auto &page : page_manager.getPages()) {
+ page->setDefaultAttributes();
+ }
+ updateGuides();
+ }
+ // Add desk color, and chckerboard pattern to desk view
+ for (auto desktop : views) {
+ set_desk_color(desktop);
+ }
+
+ for (auto child : this->childList(false)) {
+ if (flags || (child->mflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG))) {
+ child->emitModified(flags & SP_OBJECT_MODIFIED_CASCADE);
+ }
+ }
+}
+
+/**
+ * Propergate the update to the child nodes so they can be updated correctly.
+ */
+void SPNamedView::update(SPCtx *ctx, guint flags)
+{
+ if (flags & SP_OBJECT_MODIFIED_FLAG) {
+ flags |= SP_OBJECT_PARENT_MODIFIED_FLAG;
+ }
+
+ flags &= SP_OBJECT_MODIFIED_CASCADE;
+
+ for (auto child : this->childList(false)) {
+ if (flags || (child->uflags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_CHILD_MODIFIED_FLAG))) {
+ child->updateDisplay(ctx, flags);
+ }
+ }
+}
+
+void SPNamedView::set(SPAttr key, const gchar* value) {
+ // Send page attributes to the page manager.
+ if (document->getPageManager().subset(key, value)) {
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ return;
+ }
+
+ switch (key) {
+ case SPAttr::VIEWONLY:
+ this->editable = (!value);
+ break;
+ case SPAttr::SHOWGUIDES:
+ this->showguides.readOrUnset(value);
+ break;
+ case SPAttr::INKSCAPE_LOCKGUIDES:
+ this->lockguides.readOrUnset(value);
+ break;
+ case SPAttr::SHOWGRIDS:
+ this->grids_visible.readOrUnset(value);
+ break;
+ case SPAttr::GRIDTOLERANCE:
+ this->snap_manager.snapprefs.setGridTolerance(value ? g_ascii_strtod(value, nullptr) : 10000);
+ break;
+ case SPAttr::GUIDETOLERANCE:
+ this->snap_manager.snapprefs.setGuideTolerance(value ? g_ascii_strtod(value, nullptr) : 20);
+ break;
+ case SPAttr::OBJECTTOLERANCE:
+ this->snap_manager.snapprefs.setObjectTolerance(value ? g_ascii_strtod(value, nullptr) : 20);
+ break;
+ case SPAttr::ALIGNMENTTOLERANCE:
+ this->snap_manager.snapprefs.setAlignementTolerance(value ? g_ascii_strtod(value, nullptr) : 5);
+ break;
+ case SPAttr::DISTRIBUTIONTOLERANCE:
+ this->snap_manager.snapprefs.setDistributionTolerance(value ? g_ascii_strtod(value, nullptr) : 5);
+ break;
+ case SPAttr::GUIDECOLOR:
+ this->guidecolor = (this->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);
+ if (value) {
+ this->guidecolor = (this->guidecolor & 0xff) | sp_svg_read_color(value, this->guidecolor);
+ }
+ for(auto guide : this->guides) {
+ guide->setColor(this->guidecolor);
+ guide->readAttr(SPAttr::INKSCAPE_COLOR);
+ }
+ break;
+ case SPAttr::GUIDEOPACITY:
+ sp_ink_read_opacity(value, &this->guidecolor, DEFAULTGUIDECOLOR);
+ for (auto guide : this->guides) {
+ guide->setColor(this->guidecolor);
+ guide->readAttr(SPAttr::INKSCAPE_COLOR);
+ }
+ break;
+ case SPAttr::GUIDEHICOLOR:
+ this->guidehicolor = (this->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);
+ if (value) {
+ this->guidehicolor = (this->guidehicolor & 0xff) | sp_svg_read_color(value, this->guidehicolor);
+ }
+ for(auto guide : this->guides) {
+ guide->setHiColor(this->guidehicolor);
+ }
+ break;
+ case SPAttr::GUIDEHIOPACITY:
+ sp_ink_read_opacity(value, &this->guidehicolor, DEFAULTGUIDEHICOLOR);
+ for (auto guide : this->guides) {
+ guide->setHiColor(this->guidehicolor);
+ }
+ break;
+ case SPAttr::PAGECOLOR:
+ break;
+ case SPAttr::INKSCAPE_DESK_COLOR:
+ if (value) {
+ desk_color = sp_svg_read_color(value, desk_color);
+ }
+ break;
+ case SPAttr::INKSCAPE_DESK_CHECKERBOARD:
+ this->desk_checkerboard.readOrUnset(value);
+ break;
+ case SPAttr::INKSCAPE_ZOOM:
+ this->zoom = value ? g_ascii_strtod(value, nullptr) : 0; // zero means not set
+ break;
+ case SPAttr::INKSCAPE_ROTATION:
+ this->rotation = value ? g_ascii_strtod(value, nullptr) : 0; // zero means not set
+ break;
+ case SPAttr::INKSCAPE_CX:
+ this->cx = value ? g_ascii_strtod(value, nullptr) : HUGE_VAL; // HUGE_VAL means not set
+ break;
+ case SPAttr::INKSCAPE_CY:
+ this->cy = value ? g_ascii_strtod(value, nullptr) : HUGE_VAL; // HUGE_VAL means not set
+ break;
+ case SPAttr::INKSCAPE_WINDOW_WIDTH:
+ this->window_width = value? atoi(value) : -1; // -1 means not set
+ break;
+ case SPAttr::INKSCAPE_WINDOW_HEIGHT:
+ this->window_height = value ? atoi(value) : -1; // -1 means not set
+ break;
+ case SPAttr::INKSCAPE_WINDOW_X:
+ this->window_x = value ? atoi(value) : 0;
+ break;
+ case SPAttr::INKSCAPE_WINDOW_Y:
+ this->window_y = value ? atoi(value) : 0;
+ break;
+ case SPAttr::INKSCAPE_WINDOW_MAXIMIZED:
+ this->window_maximized = value ? atoi(value) : 0;
+ break;
+ case SPAttr::INKSCAPE_CURRENT_LAYER:
+ this->default_layer_id = value ? g_quark_from_string(value) : 0;
+ break;
+ case SPAttr::INKSCAPE_CONNECTOR_SPACING:
+ this->connector_spacing = value ? g_ascii_strtod(value, nullptr) : defaultConnSpacing;
+ break;
+ case SPAttr::INKSCAPE_DOCUMENT_UNITS: {
+ /* The default display unit if the document doesn't override this: e.g. for files saved as
+ * `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
+ * earlier.
+ *
+ * Note that these units are not the same as the units used for the values in SVG!
+ *
+ * We default to `px'.
+ */
+ static Inkscape::Util::Unit const *px = unit_table.getUnit("px");
+ Inkscape::Util::Unit const *new_unit = px;
+
+ if (value) {
+ Inkscape::Util::Unit const *const req_unit = unit_table.getUnit(value);
+ if ( !unit_table.hasUnit(value) ) {
+ g_warning("Unrecognized unit `%s'", value);
+ /* fixme: Document errors should be reported in the status bar or
+ * the like (e.g. as per
+ * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
+ * should be only for programmer errors. */
+ } else if ( req_unit->isAbsolute() ) {
+ new_unit = req_unit;
+ } else {
+ g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'", value);
+ /* fixme: Don't use g_log (see above). */
+ }
+ }
+ this->display_units = new_unit;
+ break;
+ }
+ /*
+ case SPAttr::UNITS: {
+ // Only used in "Custom size" section of Document Properties dialog
+ Inkscape::Util::Unit const *new_unit = nullptr;
+
+ if (value) {
+ Inkscape::Util::Unit const *const req_unit = unit_table.getUnit(value);
+ if ( !unit_table.hasUnit(value) ) {
+ g_warning("Unrecognized unit `%s'", value);
+ / * fixme: Document errors should be reported in the status bar or
+ * the like (e.g. as per
+ * http://www.w3.org/TR/SVG11/implnote.html#ErrorProcessing); g_log
+ * should be only for programmer errors. * /
+ } else if ( req_unit->isAbsolute() ) {
+ new_unit = req_unit;
+ } else {
+ g_warning("Document units must be absolute like `mm', `pt' or `px', but found `%s'",
+ value);
+ / * fixme: Don't use g_log (see above). * /
+ }
+ }
+ this->page_size_units = new_unit;
+ break;
+ } */
+ default:
+ SPObjectGroup::set(key, value);
+ return;
+ }
+
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+}
+
+/**
+* add a grid item from SVG-repr. Check if this namedview already has a gridobject for this one! If desktop=null, add grid-canvasitem to all desktops of this namedview,
+* otherwise only add it to the specified desktop.
+*/
+static Inkscape::CanvasGrid*
+sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {
+ Inkscape::CanvasGrid* grid = nullptr;
+ //check if namedview already has an object for this grid
+ for(auto it : nv->grids) {
+ if (repr == it->repr) {
+ grid = it;
+ break;
+ }
+ }
+
+ if (!grid) {
+ //create grid object
+ Inkscape::GridType gridtype = Inkscape::CanvasGrid::getGridTypeFromSVGName(repr->attribute("type"));
+ if (!nv->document) {
+ g_warning("sp_namedview_add_grid - how come doc is null here?!");
+ return nullptr;
+ }
+ grid = Inkscape::CanvasGrid::NewGrid(nv, repr, nv->document, gridtype);
+ nv->grids.push_back(grid);
+ }
+
+ if (!desktop) {
+ //add canvasitem to all desktops
+ for(auto view : nv->views) {
+ grid->createCanvasItem(view);
+ }
+ } else {
+ //add canvasitem only for specified desktop
+ grid->createCanvasItem(desktop);
+ }
+
+ return grid;
+}
+
+/**
+ * Update the visibility of the viewport space. This can look like a page
+ * if there's no multi-pages, or invisible if it shadows the first page.
+ */
+void SPNamedView::updateViewPort()
+{
+ auto box = document->preferredBounds();
+ if (auto page = document->getPageManager().getPageAt(box->corner(0))) {
+ // An existing page is set as the main page, so hide th viewport canvas item.
+ _viewport->hide();
+ page->setDesktopRect(*box);
+ } else {
+ // Otherwise we are showing the viewport item.
+ _viewport->show();
+ _viewport->update(*box, nullptr, document->getPageManager().hasPages());
+ }
+}
+
+void SPNamedView::child_added(Inkscape::XML::Node *child, Inkscape::XML::Node *ref) {
+ SPObjectGroup::child_added(child, ref);
+
+ SPObject *no = this->document->getObjectByRepr(child);
+ if (!no)
+ return;
+
+ if (!strcmp(child->name(), "inkscape:grid")) {
+ sp_namedview_add_grid(this, child, nullptr);
+ } else if (!strcmp(child->name(), "inkscape:page")) {
+ if (auto page = dynamic_cast<SPPage *>(no)) {
+ document->getPageManager().addPage(page);
+ for (auto view : this->views) {
+ page->showPage(view->getCanvasPagesBg(), view->getCanvasPagesFg());
+ }
+ }
+ } else {
+ if (auto g = dynamic_cast<SPGuide *>(no)) {
+ this->guides.push_back(g);
+
+ //g_object_set(G_OBJECT(g), "color", this->guidecolor, "hicolor", this->guidehicolor, NULL);
+ g->setColor(this->guidecolor);
+ g->setHiColor(this->guidehicolor);
+ g->readAttr(SPAttr::INKSCAPE_COLOR);
+
+ if (this->editable) {
+ for(auto view : this->views) {
+ g->SPGuide::showSPGuide(view->getCanvasGuides());
+
+ if (view->guides_active) {
+ g->sensitize(view->getCanvas(), TRUE);
+ }
+
+ this->setShowGuideSingle(g);
+ }
+ }
+ }
+ }
+}
+
+void SPNamedView::remove_child(Inkscape::XML::Node *child) {
+ if (!strcmp(child->name(), "inkscape:grid")) {
+ for(std::vector<Inkscape::CanvasGrid *>::iterator it=this->grids.begin();it!=this->grids.end();++it ) {
+ if ( (*it)->repr == child ) {
+ delete (*it);
+ this->grids.erase(it);
+ break;
+ }
+ }
+ } else if (!strcmp(child->name(), "inkscape:page")) {
+ document->getPageManager().removePage(child);
+ } else {
+ for(std::vector<SPGuide *>::iterator it=this->guides.begin();it!=this->guides.end();++it ) {
+ if ( (*it)->getRepr() == child ) {
+ this->guides.erase(it);
+ break;
+ }
+ }
+ }
+
+ SPObjectGroup::remove_child(child);
+}
+
+void SPNamedView::order_changed(Inkscape::XML::Node *child, Inkscape::XML::Node *old_repr,
+ Inkscape::XML::Node *new_repr)
+{
+ SPObjectGroup::order_changed(child, old_repr, new_repr);
+ if (!strcmp(child->name(), "inkscape:page")) {
+ document->getPageManager().reorderPage(child);
+ }
+}
+
+Inkscape::XML::Node* SPNamedView::write(Inkscape::XML::Document *xml_doc, Inkscape::XML::Node *repr, guint flags) {
+ if ( ( flags & SP_OBJECT_WRITE_EXT ) &&
+ repr != this->getRepr() )
+ {
+ if (repr) {
+ repr->mergeFrom(this->getRepr(), "id");
+ } else {
+ repr = this->getRepr()->duplicate(xml_doc);
+ }
+ }
+
+ return repr;
+}
+
+void SPNamedView::show(SPDesktop *desktop)
+{
+
+ for(auto guide : this->guides) {
+ guide->showSPGuide( desktop->getCanvasGuides() );
+
+ if (desktop->guides_active) {
+ guide->sensitize(desktop->getCanvas(), TRUE);
+ }
+ this->setShowGuideSingle(guide);
+ }
+
+ auto box = document->preferredBounds();
+ _viewport->add(*box, desktop->getCanvasPagesBg(), desktop->getCanvasPagesFg());
+ document->getPageManager().setDefaultAttributes(_viewport);
+ updateViewPort();
+
+ for (auto page : document->getPageManager().getPages()) {
+ page->showPage(desktop->getCanvasPagesBg(), desktop->getCanvasPagesFg());
+ }
+
+ views.push_back(desktop);
+
+ // generate grids specified in SVG:
+ Inkscape::XML::Node *repr = this->getRepr();
+ if (repr) {
+ for (Inkscape::XML::Node * child = repr->firstChild() ; child != nullptr; child = child->next() ) {
+ if (!strcmp(child->name(), "inkscape:grid")) {
+ sp_namedview_add_grid(this, child, desktop);
+ }
+ }
+ }
+
+ desktop->showGrids(grids_visible, false);
+}
+
+/*
+ * Restores window geometry from the document settings or defaults in prefs
+ */
+void sp_namedview_window_from_document(SPDesktop *desktop)
+{
+ SPNamedView *nv = desktop->namedview;
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ int window_geometry = prefs->getInt("/options/savewindowgeometry/value", PREFS_WINDOW_GEOMETRY_NONE);
+ int default_size = prefs->getInt("/options/defaultwindowsize/value", PREFS_WINDOW_SIZE_NATURAL);
+ bool new_document = (nv->window_width <= 0) || (nv->window_height <= 0);
+
+ // restore window size and position stored with the document
+ Gtk::Window *win = desktop->getToplevel();
+ g_assert(win);
+
+ if (window_geometry == PREFS_WINDOW_GEOMETRY_LAST) {
+ gint pw = prefs->getInt("/desktop/geometry/width", -1);
+ gint ph = prefs->getInt("/desktop/geometry/height", -1);
+ gint px = prefs->getInt("/desktop/geometry/x", -1);
+ gint py = prefs->getInt("/desktop/geometry/y", -1);
+ gint full = prefs->getBool("/desktop/geometry/fullscreen");
+ gint maxed = prefs->getBool("/desktop/geometry/maximized");
+ if (pw>0 && ph>0) {
+
+ Gdk::Rectangle monitor_geometry = Inkscape::UI::get_monitor_geometry_at_point(px, py);
+ pw = std::min(pw, monitor_geometry.get_width());
+ ph = std::min(ph, monitor_geometry.get_height());
+ desktop->setWindowSize(pw, ph);
+ desktop->setWindowPosition(Geom::Point(px, py));
+ }
+ if (maxed) {
+ win->maximize();
+ }
+ if (full) {
+ win->fullscreen();
+ }
+ } else if ((window_geometry == PREFS_WINDOW_GEOMETRY_FILE && nv->window_maximized) ||
+ (new_document && (default_size == PREFS_WINDOW_SIZE_MAXIMIZED))) {
+ win->maximize();
+ } else {
+ const int MIN_WINDOW_SIZE = 600;
+
+ int w = prefs->getInt("/template/base/inkscape:window-width", 0);
+ int h = prefs->getInt("/template/base/inkscape:window-height", 0);
+ bool move_to_screen = false;
+ if (window_geometry == PREFS_WINDOW_GEOMETRY_FILE && !new_document) {
+ Gdk::Rectangle monitor_geometry = Inkscape::UI::get_monitor_geometry_at_point(nv->window_x, nv->window_y);
+ w = MIN(monitor_geometry.get_width(), nv->window_width);
+ h = MIN(monitor_geometry.get_height(), nv->window_height);
+ move_to_screen = true;
+ } else if (default_size == PREFS_WINDOW_SIZE_LARGE) {
+ Gdk::Rectangle monitor_geometry = Inkscape::UI::get_monitor_geometry_at_window(win->get_window());
+ w = MAX(0.75 * monitor_geometry.get_width(), MIN_WINDOW_SIZE);
+ h = MAX(0.75 * monitor_geometry.get_height(), MIN_WINDOW_SIZE);
+ } else if (default_size == PREFS_WINDOW_SIZE_SMALL) {
+ w = h = MIN_WINDOW_SIZE;
+ } else if (default_size == PREFS_WINDOW_SIZE_NATURAL) {
+ // don't set size (i.e. keep the gtk+ default, which will be the natural size)
+ // unless gtk+ decided it would be a good idea to show a window that is larger than the screen
+ Gdk::Rectangle monitor_geometry = Inkscape::UI::get_monitor_geometry_at_window(win->get_window());
+ int monitor_width = monitor_geometry.get_width();
+ int monitor_height = monitor_geometry.get_height();
+ int window_width, window_height;
+ win->get_size(window_width, window_height);
+ if (window_width > monitor_width || window_height > monitor_height) {
+ w = std::min(monitor_width, window_width);
+ h = std::min(monitor_height, window_height);
+ }
+ }
+ if ((w > 0) && (h > 0)) {
+ desktop->setWindowSize(w, h);
+ if (move_to_screen) {
+ desktop->setWindowPosition(Geom::Point(nv->window_x, nv->window_y));
+ }
+ }
+ }
+
+ // Cancel any history of transforms up to this point (must be before call to zoom).
+ desktop->clear_transform_history();
+}
+
+/*
+ * Restores zoom and view from the document settings
+ */
+void sp_namedview_zoom_and_view_from_document(SPDesktop *desktop)
+{
+ SPNamedView *nv = desktop->namedview;
+ if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !std::isnan(nv->zoom)
+ && nv->cx != HUGE_VAL && !std::isnan(nv->cx)
+ && nv->cy != HUGE_VAL && !std::isnan(nv->cy)) {
+ desktop->zoom_absolute( Geom::Point(nv->cx, nv->cy), nv->zoom, false );
+ } else if (auto document = desktop->getDocument()) {
+ // document without saved zoom, zoom to its page
+ document->getPageManager().zoomToSelectedPage(desktop);
+ }
+ if (nv->rotation != 0 && nv->rotation != HUGE_VAL && !std::isnan(nv->rotation)) {
+ Geom::Point p;
+ if (nv->cx != HUGE_VAL && !std::isnan(nv->cx) && nv->cy != HUGE_VAL && !std::isnan(nv->cy)) {
+ p = Geom::Point(nv->cx, nv->cy);
+ }else{
+ p = desktop->current_center();
+ }
+ desktop->rotate_absolute_keep_point(p, nv->rotation * M_PI / 180.0);
+ }
+}
+
+void SPNamedView::writeNewGrid(SPDocument *document,int gridtype)
+{
+ g_assert(this->getRepr() != nullptr);
+ Inkscape::CanvasGrid::writeNewGridToRepr(this->getRepr(),document,static_cast<Inkscape::GridType>(gridtype));
+}
+
+void sp_namedview_update_layers_from_document (SPDesktop *desktop)
+{
+ SPObject *layer = nullptr;
+ SPDocument *document = desktop->doc();
+ SPNamedView *nv = desktop->namedview;
+ if ( nv->default_layer_id != 0 ) {
+ layer = document->getObjectById(g_quark_to_string(nv->default_layer_id));
+ }
+ // don't use that object if it's not at least group
+ if ( !layer || !SP_IS_GROUP(layer) ) {
+ layer = nullptr;
+ }
+ // if that didn't work out, look for the topmost layer
+ if (!layer) {
+ for (auto& iter: document->getRoot()->children) {
+ if (desktop->layerManager().isLayer(&iter)) {
+ layer = &iter;
+ }
+ }
+ }
+ if (layer) {
+ desktop->layerManager().setCurrentLayer(layer);
+ }
+
+ // FIXME: find a better place to do this
+ document->get_event_log()->updateUndoVerbs();
+}
+
+void sp_namedview_document_from_window(SPDesktop *desktop)
+{
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ int window_geometry = prefs->getInt("/options/savewindowgeometry/value", PREFS_WINDOW_GEOMETRY_NONE);
+ bool save_geometry_in_file = window_geometry == PREFS_WINDOW_GEOMETRY_FILE;
+ bool save_viewport_in_file = prefs->getBool("/options/savedocviewport/value", true);
+ Inkscape::XML::Node *view = desktop->namedview->getRepr();
+
+ // saving window geometry is not undoable
+ bool saved = DocumentUndo::getUndoSensitive(desktop->getDocument());
+ DocumentUndo::setUndoSensitive(desktop->getDocument(), false);
+
+ if (save_viewport_in_file) {
+ view->setAttributeSvgDouble("inkscape:zoom", desktop->current_zoom());
+ double rotation = ::round(desktop->current_rotation() * 180.0 / M_PI);
+ view->setAttributeSvgNonDefaultDouble("inkscape:rotation", rotation, 0.0);
+ Geom::Point center = desktop->current_center();
+ view->setAttributeSvgDouble("inkscape:cx", center.x());
+ view->setAttributeSvgDouble("inkscape:cy", center.y());
+ }
+
+ if (save_geometry_in_file) {
+ gint w, h, x, y;
+ desktop->getWindowGeometry(x, y, w, h);
+ view->setAttributeInt("inkscape:window-width", w);
+ view->setAttributeInt("inkscape:window-height", h);
+ view->setAttributeInt("inkscape:window-x", x);
+ view->setAttributeInt("inkscape:window-y", y);
+ view->setAttributeInt("inkscape:window-maximized", desktop->is_maximized());
+ }
+
+ view->setAttribute("inkscape:current-layer", desktop->layerManager().currentLayer()->getId());
+
+ // restore undoability
+ DocumentUndo::setUndoSensitive(desktop->getDocument(), saved);
+}
+
+void SPNamedView::hide(SPDesktop const *desktop)
+{
+ g_assert(desktop != nullptr);
+ g_assert(std::find(views.begin(),views.end(),desktop)!=views.end());
+ for(auto & guide : this->guides) {
+ guide->hideSPGuide(desktop->getCanvas());
+ }
+ _viewport->remove(desktop->getCanvas());
+ for (auto &page : document->getPageManager().getPages()) {
+ page->hidePage(desktop->getCanvas());
+ }
+ views.erase(std::remove(views.begin(),views.end(),desktop),views.end());
+}
+
+/**
+ * Set an attribute in the named view to the value in this preference, or use the fallback.
+ *
+ * @param attribute - The svg namedview attribute to set.
+ * @param preference - The preference to find the value from (optional)
+ * @param fallback - The fallback to use if preference not set or not found. (optional)
+ */
+void SPNamedView::setDefaultAttribute(std::string attribute, std::string preference, std::string fallback)
+{
+ if (!getAttribute(attribute.c_str())) {
+ std::string value = "";
+ if (!preference.empty()) {
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ value = prefs->getString(preference);
+ }
+ if (value.empty() && !fallback.empty()) {
+ value = fallback;
+ }
+ if (!value.empty()) {
+ setAttribute(attribute, value);
+ }
+ }
+}
+
+void SPNamedView::activateGuides(void* desktop, bool active)
+{
+ g_assert(desktop != nullptr);
+ g_assert(std::find(views.begin(),views.end(),desktop)!=views.end());
+
+ SPDesktop *dt = static_cast<SPDesktop*>(desktop);
+ for(auto & guide : this->guides) {
+ guide->sensitize(dt->getCanvas(), active);
+ }
+}
+
+void sp_namedview_show_grids(SPNamedView * namedview, bool show, bool dirty_document)
+{
+ namedview->grids_visible = show;
+
+ SPDocument *doc = namedview->document;
+ Inkscape::XML::Node *repr = namedview->getRepr();
+
+ bool saved = DocumentUndo::getUndoSensitive(doc);
+ DocumentUndo::setUndoSensitive(doc, false);
+ repr->setAttributeBoolean("showgrid", namedview->grids_visible);
+ DocumentUndo::setUndoSensitive(doc, saved);
+
+ /* we don't want the document to get dirty on startup; that's when
+ we call this function with dirty_document = false */
+ if (dirty_document) {
+ doc->setModifiedSinceSave();
+ }
+}
+
+gchar const *SPNamedView::getName() const
+{
+ return this->getAttribute("id");
+}
+
+std::vector<SPDesktop *> const SPNamedView::getViewList() const
+{
+ return views;
+}
+
+void SPNamedView::toggleShowGuides()
+{
+ setShowGuides(!getShowGuides());
+}
+
+void SPNamedView::toggleLockGuides()
+{
+ setLockGuides(!getLockGuides());
+}
+
+void SPNamedView::setShowGuides(bool v)
+{
+ if (auto repr = getRepr()) {
+ bool saved = DocumentUndo::getUndoSensitive(document);
+ DocumentUndo::setUndoSensitive(document, false);
+
+ repr->setAttributeBoolean("showguides", v);
+
+ DocumentUndo::setUndoSensitive(document, saved);
+ requestModified(SP_OBJECT_MODIFIED_FLAG);
+ }
+}
+
+void SPNamedView::setLockGuides(bool v)
+{
+ if (auto repr = getRepr()) {
+ bool saved = DocumentUndo::getUndoSensitive(document);
+ DocumentUndo::setUndoSensitive(document, false);
+
+ repr->setAttributeBoolean("inkscape:lockguides", v);
+
+ DocumentUndo::setUndoSensitive(document, saved);
+ requestModified(SP_OBJECT_MODIFIED_FLAG);
+ }
+}
+
+void SPNamedView::setShowGuideSingle(SPGuide *guide)
+{
+ if (getShowGuides())
+ guide->showSPGuide();
+ else
+ guide->hideSPGuide();
+}
+
+bool SPNamedView::getShowGuides()
+{
+ if (auto repr = getRepr()) {
+ // show guides if not specified, for backwards compatibility
+ return repr->getAttributeBoolean("showguides", true);
+ }
+
+ return false;
+}
+
+bool SPNamedView::getLockGuides()
+{
+ if (auto repr = getRepr()) {
+ return repr->getAttributeBoolean("inkscape:lockguides");
+ }
+
+ return false;
+}
+
+void SPNamedView::updateGuides()
+{
+ if (auto saction = Glib::RefPtr<Gio::SimpleAction>::cast_dynamic(
+ document->getActionGroup()->lookup_action("show-all-guides"))) {
+
+ saction->change_state(getShowGuides());
+ }
+
+ if (auto saction = Glib::RefPtr<Gio::SimpleAction>::cast_dynamic(
+ document->getActionGroup()->lookup_action("lock-all-guides"))) {
+
+ saction->change_state(getLockGuides());
+ }
+
+ for (SPGuide *guide : guides) {
+ setShowGuideSingle(guide);
+ guide->set_locked(this->getLockGuides(), true);
+ }
+}
+
+/**
+ * Gets page fitting margin information from the namedview node in the XML.
+ * \param nv_repr reference to this document's namedview
+ * \param key
+ * \param margin_units units for the margin
+ * \param return_units units to return the result in
+ * \param width width in px (for percentage margins)
+ * \param height height in px (for percentage margins)
+ * \param use_width true if the this key is left or right margins, false
+ * otherwise. Used for percentage margins.
+ * \return the margin size in px, else 0.0 if anything is invalid.
+ */
+double SPNamedView::getMarginLength(gchar const * const key,
+ Inkscape::Util::Unit const * const margin_units,
+ Inkscape::Util::Unit const * const return_units,
+ double const width,
+ double const height,
+ bool const use_width)
+{
+ double value;
+ static Inkscape::Util::Unit const *percent = unit_table.getUnit("%");
+ if(!this->storeAsDouble(key,&value)) {
+ return 0.0;
+ }
+ if (*margin_units == *percent) {
+ return (use_width)? width * value : height * value;
+ }
+ if (!margin_units->compatibleWith(return_units)) {
+ return 0.0;
+ }
+ return value;
+}
+
+/**
+ * Returns namedview's default unit.
+ * If no default unit is set, "px" is returned
+ */
+Inkscape::Util::Unit const * SPNamedView::getDisplayUnit() const
+{
+ return display_units ? display_units : unit_table.getUnit("px");
+}
+
+/**
+ * Set the display unit to the given value.
+ */
+void SPNamedView::setDisplayUnit(std::string unit)
+{
+ setDisplayUnit(unit_table.getUnit(unit));
+}
+
+void SPNamedView::setDisplayUnit(Inkscape::Util::Unit const *unit)
+{
+ // If this is unset, it will be returned as px by getDisplayUnit
+ display_units = unit;
+ getRepr()->setAttributeOrRemoveIfEmpty("inkscape:document-units",
+ unit ? unit->abbr.c_str() : nullptr);
+}
+
+/**
+ * Returns the first grid it could find that isEnabled(). Returns NULL, if none is enabled
+ */
+Inkscape::CanvasGrid * sp_namedview_get_first_enabled_grid(SPNamedView *namedview)
+{
+ for(auto grid : namedview->grids) {
+ if (grid->isEnabled())
+ return grid;
+ }
+
+ return nullptr;
+}
+
+void SPNamedView::translateGuides(Geom::Translate const &tr) {
+ for(auto & it : this->guides) {
+ SPGuide &guide = *it;
+ Geom::Point point_on_line = guide.getPoint();
+ point_on_line *= tr;
+ guide.moveto(point_on_line, true);
+ }
+}
+
+void SPNamedView::translateGrids(Geom::Translate const &tr) {
+ for(auto & grid : this->grids) {
+ grid->setOrigin(grid->origin * tr);
+ }
+}
+
+void SPNamedView::scrollAllDesktops(double dx, double dy, bool is_scrolling) {
+ for(auto & view : this->views) {
+ view->scroll_relative_in_svg_coords(dx, dy, is_scrolling);
+ }
+}
+
+void SPNamedView::change_color(unsigned int rgba, SPAttr color_key, SPAttr opacity_key /*= SPAttr::INVALID*/) {
+ gchar buf[32];
+ sp_svg_write_color(buf, sizeof(buf), rgba);
+ getRepr()->setAttribute(sp_attribute_name(color_key), buf);
+
+ if (opacity_key != SPAttr::INVALID) {
+ getRepr()->setAttributeCssDouble(sp_attribute_name(opacity_key), (rgba & 0xff) / 255.0);
+ }
+}
+
+void SPNamedView::change_bool_setting(SPAttr key, bool value) {
+ const char* str_value = nullptr;
+ if (key == SPAttr::SHAPE_RENDERING) {
+ str_value = value ? "auto" : "crispEdges";
+ }
+ else {
+ str_value = value ? "true" : "false";
+ }
+ getRepr()->setAttribute(sp_attribute_name(key), str_value);
+}
+
+/*
+ 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 :