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-rw-r--r--src/object/sp-namedview.cpp1227
1 files changed, 1227 insertions, 0 deletions
diff --git a/src/object/sp-namedview.cpp b/src/object/sp-namedview.cpp
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--- /dev/null
+++ b/src/object/sp-namedview.cpp
@@ -0,0 +1,1227 @@
+// 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 <cstring>
+#include <string>
+#include "event-log.h"
+#include <2geom/transforms.h>
+
+#include "display/canvas-grid.h"
+#include "util/units.h"
+#include "svg/svg-color.h"
+#include "xml/repr.h"
+#include "attributes.h"
+#include "document.h"
+#include "document-undo.h"
+#include "desktop-events.h"
+#include "enums.h"
+#include "ui/monitor.h"
+
+#include "sp-guide.h"
+#include "sp-item-group.h"
+#include "sp-namedview.h"
+#include "preferences.h"
+#include "desktop.h"
+#include "conn-avoid-ref.h" // for defaultConnSpacing.
+#include "sp-root.h"
+#include <gtkmm/window.h>
+
+using Inkscape::DocumentUndo;
+using Inkscape::Util::unit_table;
+
+#define DEFAULTGRIDCOLOR 0x3f3fff25
+#define DEFAULTGRIDEMPCOLOR 0x3f3fff60
+#define DEFAULTGRIDEMPSPACING 5
+#define DEFAULTGUIDECOLOR 0x0000ff7f
+#define DEFAULTGUIDEHICOLOR 0xff00007f
+#define DEFAULTBORDERCOLOR 0x000000ff
+#define DEFAULTPAGECOLOR 0xffffff00
+
+static void sp_namedview_setup_guides(SPNamedView * nv);
+static void sp_namedview_lock_guides(SPNamedView * nv);
+static void sp_namedview_show_single_guide(SPGuide* guide, bool show);
+static void sp_namedview_lock_single_guide(SPGuide* guide, bool show);
+
+static gboolean sp_str_to_bool(const gchar *str);
+static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
+
+SPNamedView::SPNamedView() : SPObjectGroup(), snap_manager(this) {
+
+ this->zoom = 0;
+ this->guidecolor = 0;
+ this->guidehicolor = 0;
+ this->views.clear();
+ this->borderlayer = 0;
+ 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->pagecolor = 0;
+ this->cx = 0;
+ this->pageshadow = 0;
+ this->window_width = 0;
+ this->window_height = 0;
+ this->window_maximized = 0;
+ this->bordercolor = 0;
+
+ this->editable = TRUE;
+ this->showguides = TRUE;
+ this->lockguides = false;
+ this->grids_visible = false;
+ this->showborder = TRUE;
+ this->pagecheckerboard = FALSE;
+ this->showpageshadow = TRUE;
+
+ this->guides.clear();
+ this->viewcount = 0;
+ this->grids.clear();
+
+ this->default_layer_id = 0;
+
+ this->connector_spacing = defaultConnSpacing;
+}
+
+SPNamedView::~SPNamedView() = default;
+
+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, SP_VERB_DIALOG_NAMEDVIEW, _("Create new grid from pre0.46 grid settings"));
+ }
+}
+
+void SPNamedView::build(SPDocument *document, Inkscape::XML::Node *repr) {
+ SPObjectGroup::build(document, repr);
+
+ this->readAttr( "inkscape:document-units" );
+ this->readAttr( "units" );
+ this->readAttr( "viewonly" );
+ this->readAttr( "showguides" );
+ this->readAttr( "showgrid" );
+ this->readAttr( "gridtolerance" );
+ this->readAttr( "guidetolerance" );
+ this->readAttr( "objecttolerance" );
+ this->readAttr( "guidecolor" );
+ this->readAttr( "guideopacity" );
+ this->readAttr( "guidehicolor" );
+ this->readAttr( "guidehiopacity" );
+ this->readAttr( "showborder" );
+ this->readAttr( "inkscape:showpageshadow" );
+ this->readAttr( "borderlayer" );
+ this->readAttr( "bordercolor" );
+ this->readAttr( "borderopacity" );
+ this->readAttr( "pagecolor" );
+ this->readAttr( "inkscape:pagecheckerboard" );
+ this->readAttr( "inkscape:pageopacity" );
+ this->readAttr( "inkscape:pageshadow" );
+ this->readAttr( "inkscape:zoom" );
+ this->readAttr( "inkscape:cx" );
+ this->readAttr( "inkscape:cy" );
+ this->readAttr( "inkscape:window-width" );
+ this->readAttr( "inkscape:window-height" );
+ this->readAttr( "inkscape:window-x" );
+ this->readAttr( "inkscape:window-y" );
+ this->readAttr( "inkscape:window-maximized" );
+ this->readAttr( "inkscape:snap-global" );
+ this->readAttr( "inkscape:snap-bbox" );
+ this->readAttr( "inkscape:snap-nodes" );
+ this->readAttr( "inkscape:snap-others" );
+ this->readAttr( "inkscape:snap-from-guide" );
+ this->readAttr( "inkscape:snap-center" );
+ this->readAttr( "inkscape:snap-smooth-nodes" );
+ this->readAttr( "inkscape:snap-midpoints" );
+ this->readAttr( "inkscape:snap-object-midpoints" );
+ this->readAttr( "inkscape:snap-text-baseline" );
+ this->readAttr( "inkscape:snap-bbox-edge-midpoints" );
+ this->readAttr( "inkscape:snap-bbox-midpoints" );
+ this->readAttr( "inkscape:snap-to-guides" );
+ this->readAttr( "inkscape:snap-grids" );
+ this->readAttr( "inkscape:snap-intersection-paths" );
+ this->readAttr( "inkscape:object-paths" );
+ this->readAttr( "inkscape:snap-perpendicular" );
+ this->readAttr( "inkscape:snap-tangential" );
+ this->readAttr( "inkscape:snap-path-clip" );
+ this->readAttr( "inkscape:snap-path-mask" );
+ this->readAttr( "inkscape:object-nodes" );
+ this->readAttr( "inkscape:bbox-paths" );
+ this->readAttr( "inkscape:bbox-nodes" );
+ this->readAttr( "inkscape:snap-page" );
+ this->readAttr( "inkscape:current-layer" );
+ this->readAttr( "inkscape:connector-spacing" );
+ this->readAttr( "inkscape:lockguides" );
+
+ /* Construct guideline list */
+ for (auto& o: children) {
+ if (SP_IS_GUIDE(&o)) {
+ SPGuide * g = SP_GUIDE(&o);
+ this->guides.push_back(g);
+ //g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);
+ g->setColor(this->guidecolor);
+ g->setHiColor(this->guidehicolor);
+ g->readAttr( "inkscape:color" );
+ }
+ }
+
+ // 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(SPAttributeEnum key, const gchar* value) {
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ bool global_snapping = prefs->getBool("/options/snapdefault/value", true);
+ switch (key) {
+ case SP_ATTR_VIEWONLY:
+ this->editable = (!value);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_SHOWGUIDES:
+ if (!value) { // show guides if not specified, for backwards compatibility
+ this->showguides = TRUE;
+ } else {
+ this->showguides = sp_str_to_bool(value);
+ }
+ sp_namedview_setup_guides(this);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_SHOWGRIDS:
+ if (!value) { // don't show grids if not specified, for backwards compatibility
+ this->grids_visible = false;
+ } else {
+ this->grids_visible = sp_str_to_bool(value);
+ }
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_GRIDTOLERANCE:
+ this->snap_manager.snapprefs.setGridTolerance(value ? g_ascii_strtod(value, nullptr) : 10000);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_GUIDETOLERANCE:
+ this->snap_manager.snapprefs.setGuideTolerance(value ? g_ascii_strtod(value, nullptr) : 20);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_OBJECTTOLERANCE:
+ this->snap_manager.snapprefs.setObjectTolerance(value ? g_ascii_strtod(value, nullptr) : 20);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_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("inkscape:color");
+ }
+
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_GUIDEOPACITY:
+ this->guidecolor = (this->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);
+ sp_nv_read_opacity(value, &this->guidecolor);
+
+ for(auto guide : this->guides) {
+ guide->setColor(this->guidecolor);
+ guide->readAttr("inkscape:color");
+ }
+
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_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);
+ }
+
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_GUIDEHIOPACITY:
+ this->guidehicolor = (this->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);
+ sp_nv_read_opacity(value, &this->guidehicolor);
+ for(auto guide : this->guides) {
+ guide->setHiColor(this->guidehicolor);
+ }
+
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_SHOWBORDER:
+ this->showborder = (value) ? sp_str_to_bool (value) : TRUE;
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_BORDERLAYER:
+ this->borderlayer = SP_BORDER_LAYER_BOTTOM;
+ if (value && !strcasecmp(value, "true")) this->borderlayer = SP_BORDER_LAYER_TOP;
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_BORDERCOLOR:
+ this->bordercolor = (this->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);
+ if (value) {
+ this->bordercolor = (this->bordercolor & 0xff) | sp_svg_read_color (value, this->bordercolor);
+ }
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_BORDEROPACITY:
+ this->bordercolor = (this->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);
+ sp_nv_read_opacity(value, &this->bordercolor);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_PAGECOLOR:
+ this->pagecolor = (this->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);
+ if (value) {
+ this->pagecolor = (this->pagecolor & 0xff) | sp_svg_read_color(value, this->pagecolor);
+ }
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_PAGECHECKERBOARD:
+ this->pagecheckerboard = (value) ? sp_str_to_bool (value) : false;
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_PAGEOPACITY:
+ this->pagecolor = (this->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);
+ sp_nv_read_opacity(value, &this->pagecolor);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_PAGESHADOW:
+ this->pageshadow = value? atoi(value) : 2; // 2 is the default
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_SHOWPAGESHADOW:
+ this->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_ZOOM:
+ this->zoom = value ? g_ascii_strtod(value, nullptr) : 0; // zero means not set
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_CX:
+ this->cx = value ? g_ascii_strtod(value, nullptr) : HUGE_VAL; // HUGE_VAL means not set
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_CY:
+ this->cy = value ? g_ascii_strtod(value, nullptr) : HUGE_VAL; // HUGE_VAL means not set
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_WINDOW_WIDTH:
+ this->window_width = value? atoi(value) : -1; // -1 means not set
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:
+ this->window_height = value ? atoi(value) : -1; // -1 means not set
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_WINDOW_X:
+ this->window_x = value ? atoi(value) : 0;
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_WINDOW_Y:
+ this->window_y = value ? atoi(value) : 0;
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_WINDOW_MAXIMIZED:
+ this->window_maximized = value ? atoi(value) : 0;
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_GLOBAL:
+ this->snap_manager.snapprefs.setSnapEnabledGlobally(value ? sp_str_to_bool(value) : global_snapping);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_BBOX:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_BBOX_CATEGORY, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_NODE:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_NODE_CATEGORY, value ? sp_str_to_bool(value) : TRUE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_OTHERS:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_OTHERS_CATEGORY, value ? sp_str_to_bool(value) : TRUE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_ROTATION_CENTER:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_ROTATION_CENTER, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_GRID:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_GRID, value ? sp_str_to_bool(value) : TRUE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_GUIDE:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_GUIDE, value ? sp_str_to_bool(value) : TRUE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_NODE_SMOOTH:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_NODE_SMOOTH, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_LINE_MIDPOINT:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_LINE_MIDPOINT, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_OBJECT_MIDPOINT:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_OBJECT_MIDPOINT, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_TEXT_BASELINE:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_TEXT_BASELINE, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_BBOX_EDGE_MIDPOINT:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_BBOX_EDGE_MIDPOINT, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_BBOX_MIDPOINT:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_BBOX_MIDPOINT, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_PATH_INTERSECTION:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_PATH_INTERSECTION, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_PATH:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_PATH, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_PERP:
+ this->snap_manager.snapprefs.setSnapPerp(value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_TANG:
+ this->snap_manager.snapprefs.setSnapTang(value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_PATH_CLIP:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_PATH_CLIP, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_PATH_MASK:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_PATH_MASK, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_NODE_CUSP:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_NODE_CUSP, value ? sp_str_to_bool(value) : TRUE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_BBOX_EDGE:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_BBOX_EDGE, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_BBOX_CORNER:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_BBOX_CORNER, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_SNAP_PAGE_BORDER:
+ this->snap_manager.snapprefs.setTargetSnappable(Inkscape::SNAPTARGET_PAGE_BORDER, value ? sp_str_to_bool(value) : FALSE);
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_CURRENT_LAYER:
+ this->default_layer_id = value ? g_quark_from_string(value) : 0;
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:
+ this->connector_spacing = value ? g_ascii_strtod(value, nullptr) :
+ defaultConnSpacing;
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ case SP_ATTR_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 && document->getRoot()->viewBox_set) {
+ 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;
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ }
+ case SP_ATTR_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;
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ }
+ case SP_ATTR_INKSCAPE_LOCKGUIDES:
+ this->lockguides = value ? sp_str_to_bool(value) : FALSE;
+ this->lockGuides();
+ this->requestModified(SP_OBJECT_MODIFIED_FLAG);
+ break;
+ default:
+ SPObjectGroup::set(key, value);
+ break;
+ }
+}
+
+/**
+* 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;
+}
+
+void SPNamedView::child_added(Inkscape::XML::Node *child, Inkscape::XML::Node *ref) {
+ SPObjectGroup::child_added(child, ref);
+
+ if (!strcmp(child->name(), "inkscape:grid")) {
+ sp_namedview_add_grid(this, child, nullptr);
+ } else {
+ SPObject *no = this->document->getObjectByRepr(child);
+ if ( !SP_IS_OBJECT(no) ) {
+ return;
+ }
+
+ if (SP_IS_GUIDE(no)) {
+ SPGuide *g = (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("inkscape:color");
+
+ if (this->editable) {
+ for(auto view : this->views) {
+ g->SPGuide::showSPGuide(view->guides, (GCallback) sp_dt_guide_event);
+
+ if (view->guides_active) {
+ g->sensitize(view->getCanvas(), TRUE);
+ }
+
+ sp_namedview_show_single_guide(SP_GUIDE(g), this->showguides);
+ }
+ }
+ }
+ }
+}
+
+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 {
+ 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);
+}
+
+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->guides, (GCallback) sp_dt_guide_event);
+ if (desktop->guides_active) {
+ guide->sensitize(desktop->getCanvas(), TRUE);
+ }
+ sp_namedview_show_single_guide(guide, showguides);
+ }
+
+ 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);
+ bool show_dialogs = true;
+
+ // 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 = 0;
+ int h = 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)) {
+#ifndef _WIN32
+ gint dx= 0;
+ gint dy = 0;
+ gint dw = 0;
+ gint dh = 0;
+ desktop->getWindowGeometry(dx, dy, dw, dh);
+ if ((w != dw) || (h != dh)) {
+ // Don't show dialogs when window is initially resized on OSX/Linux due to gdl dock bug
+ // This will happen on sp_desktop_widget_size_allocate
+ show_dialogs = FALSE;
+ }
+#endif
+ 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();
+
+ if (show_dialogs) {
+ desktop->show_dialogs();
+ }
+}
+
+/*
+ * 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_center_point( Geom::Point(nv->cx, nv->cy), nv->zoom );
+ } else if (desktop->getDocument()) { // document without saved zoom, zoom to its page
+ desktop->zoom_page();
+ }
+}
+
+void SPNamedView::writeNewGrid(SPDocument *document,int gridtype)
+{
+ g_assert(this->getRepr() != nullptr);
+ Inkscape::CanvasGrid::writeNewGridToRepr(this->getRepr(),document,static_cast<Inkscape::GridType>(gridtype));
+}
+
+bool SPNamedView::getSnapGlobal() const
+{
+ return this->snap_manager.snapprefs.getSnapEnabledGlobally();
+}
+
+void SPNamedView::setSnapGlobal(bool v)
+{
+ g_assert(this->getRepr() != nullptr);
+ sp_repr_set_boolean(this->getRepr(), "inkscape:snap-global", v);
+}
+
+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->isLayer(&iter)) {
+ layer = &iter;
+ }
+ }
+ }
+ if (layer) {
+ desktop->setCurrentLayer(layer);
+ }
+
+ // FIXME: find a better place to do this
+ desktop->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();
+ Geom::Rect const r = desktop->get_display_area();
+
+ // saving window geometry is not undoable
+ bool saved = DocumentUndo::getUndoSensitive(desktop->getDocument());
+ DocumentUndo::setUndoSensitive(desktop->getDocument(), false);
+
+ if (save_viewport_in_file) {
+ sp_repr_set_svg_double(view, "inkscape:zoom", desktop->current_zoom());
+ sp_repr_set_svg_double(view, "inkscape:cx", r.midpoint()[Geom::X]);
+ sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[Geom::Y]);
+ }
+
+ if (save_geometry_in_file) {
+ gint w, h, x, y;
+ desktop->getWindowGeometry(x, y, w, h);
+ sp_repr_set_int(view, "inkscape:window-width", w);
+ sp_repr_set_int(view, "inkscape:window-height", h);
+ sp_repr_set_int(view, "inkscape:window-x", x);
+ sp_repr_set_int(view, "inkscape:window-y", y);
+ sp_repr_set_int(view, "inkscape:window-maximized", desktop->is_maximized());
+ }
+
+ view->setAttribute("inkscape:current-layer", desktop->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());
+ }
+ views.erase(std::remove(views.begin(),views.end(),desktop),views.end());
+}
+
+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);
+ }
+}
+
+static void sp_namedview_setup_guides(SPNamedView *nv)
+{
+ for(std::vector<SPGuide *>::iterator it=nv->guides.begin();it!=nv->guides.end();++it ) {
+ sp_namedview_show_single_guide(*it, nv->showguides);
+ }
+}
+
+static void sp_namedview_lock_guides(SPNamedView *nv)
+{
+ for(std::vector<SPGuide *>::iterator it=nv->guides.begin();it!=nv->guides.end();++it ) {
+ sp_namedview_lock_single_guide(*it, nv->lockguides);
+ }
+}
+
+static void sp_namedview_show_single_guide(SPGuide* guide, bool show)
+{
+ if (show) {
+ guide->showSPGuide();
+ } else {
+ guide->hideSPGuide();
+ }
+}
+
+static void sp_namedview_lock_single_guide(SPGuide* guide, bool locked)
+{
+ guide->set_locked(locked, true);
+}
+
+void sp_namedview_toggle_guides(SPDocument *doc, SPNamedView *namedview)
+{
+ unsigned int v;
+ Inkscape::XML::Node *repr = namedview->getRepr();
+ unsigned int set = sp_repr_get_boolean(repr, "showguides", &v);
+ if (!set) { // hide guides if not specified, for backwards compatibility
+ v = FALSE;
+ } else {
+ v = !v;
+ }
+
+ bool saved = DocumentUndo::getUndoSensitive(doc);
+ DocumentUndo::setUndoSensitive(doc, false);
+ sp_repr_set_boolean(repr, "showguides", v);
+ DocumentUndo::setUndoSensitive(doc, saved);
+ SPDesktop *desktop = SP_ACTIVE_DESKTOP;
+ if (desktop) {
+ Inkscape::Verb *verb = Inkscape::Verb::get(SP_VERB_TOGGLE_GUIDES);
+ if (verb) {
+ desktop->_menu_update.emit(verb->get_code(), namedview->getGuides());
+ }
+ }
+ doc->setModifiedSinceSave();
+}
+
+void sp_namedview_guides_toggle_lock(SPDocument *doc, SPNamedView * namedview)
+{
+ unsigned int v;
+ Inkscape::XML::Node *repr = namedview->getRepr();
+ unsigned int set = sp_repr_get_boolean(repr, "inkscape:lockguides", &v);
+ if (!set) { // hide guides if not specified, for backwards compatibility
+ v = true;
+ } else {
+ v = !v;
+ }
+
+ bool saved = DocumentUndo::getUndoSensitive(doc);
+ DocumentUndo::setUndoSensitive(doc, false);
+ sp_repr_set_boolean(repr, "inkscape:lockguides", v);
+ sp_namedview_lock_guides(namedview);
+ DocumentUndo::setUndoSensitive(doc, saved);
+ doc->setModifiedSinceSave();
+}
+
+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);
+ sp_repr_set_boolean(repr, "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
+{
+ SPException ex;
+ SP_EXCEPTION_INIT(&ex);
+ return this->getAttribute("id", &ex);
+}
+
+guint SPNamedView::getViewCount()
+{
+ return ++viewcount;
+}
+
+std::vector<SPDesktop *> const SPNamedView::getViewList() const
+{
+ return views;
+}
+
+/* This should be moved somewhere */
+
+static gboolean sp_str_to_bool(const gchar *str)
+{
+ if (str) {
+ if (!g_ascii_strcasecmp(str, "true") ||
+ !g_ascii_strcasecmp(str, "yes") ||
+ !g_ascii_strcasecmp(str, "y") ||
+ (atoi(str) != 0)) {
+ return TRUE;
+ }
+ }
+
+ return FALSE;
+}
+
+static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color)
+{
+ if (!str) {
+ return FALSE;
+ }
+
+ gchar *u;
+ gdouble v = g_ascii_strtod(str, &u);
+ if (!u) {
+ return FALSE;
+ }
+ v = CLAMP(v, 0.0, 1.0);
+
+ *color = (*color & 0xffffff00) | (guint32) floor(v * 255.9999);
+
+ return TRUE;
+}
+
+SPNamedView *sp_document_namedview(SPDocument *document, const gchar *id)
+{
+ g_return_val_if_fail(document != nullptr, NULL);
+
+ SPObject *nv = sp_item_group_get_child_by_name(document->getRoot(), nullptr, "sodipodi:namedview");
+ g_assert(nv != nullptr);
+
+ if (id == nullptr) {
+ return (SPNamedView *) nv;
+ }
+
+ while (nv && strcmp(nv->getId(), id)) {
+ nv = sp_item_group_get_child_by_name(document->getRoot(), nv, "sodipodi:namedview");
+ }
+
+ return (SPNamedView *) nv;
+}
+
+SPNamedView const *sp_document_namedview(SPDocument const *document, const gchar *id)
+{
+ return sp_document_namedview(const_cast<SPDocument *>(document), id); // use a const_cast here to avoid duplicating code
+}
+
+void SPNamedView::setGuides(bool v)
+{
+ g_assert(this->getRepr() != nullptr);
+ sp_repr_set_boolean(this->getRepr(), "showguides", v);
+ sp_repr_set_boolean(this->getRepr(), "inkscape:guide-bbox", v);
+}
+
+bool SPNamedView::getGuides()
+{
+ g_assert(this->getRepr() != nullptr);
+ unsigned int v;
+ unsigned int set = sp_repr_get_boolean(this->getRepr(), "showguides", &v);
+ if (!set) { // show guides if not specified, for backwards compatibility
+ v = TRUE;
+ }
+
+ return v;
+}
+
+void SPNamedView::lockGuides()
+{
+ sp_namedview_lock_guides(this);
+}
+
+/**
+ * Gets page fitting margin information from the namedview node in the XML.
+ * \param nv_repr reference to this document's namedview
+ * \param key the same key used by the RegisteredScalarUnit in
+ * ui/widget/page-sizer.cpp
+ * \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");
+}
+
+/**
+ * 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);
+ }
+}
+
+
+/*
+ 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 :