#define __SP_NAMEDVIEW_C__

#include "config.h"

#include <cstring>

#include <string>

#include "display/canvas-grid.h"

#include "display/guideline.h"

#include "helper/units.h"

#include "svg/svg-color.h"

#include "xml/repr.h"

#include "attributes.h"

#include "document.h"

#include "desktop-events.h"

#include "desktop-handles.h"

#include "event-log.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.

#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_class_init(SPNamedViewClass *klass);

static void sp_namedview_init(SPNamedView *namedview);

static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr);

static void sp_namedview_release(SPObject *object);

static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value);

static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref);

static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child);

static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags);

static void sp_namedview_setup_guides(SPNamedView * nv);

static void sp_namedview_show_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);

static SPObjectGroupClass * parent_class;

sp_namedview_get_type()

{

static GType namedview_type = 0;

if (!namedview_type) {

GTypeInfo namedview_info = {

sizeof(SPNamedViewClass),

NULL, /* base_init */

NULL, /* base_finalize */

(GClassInitFunc) sp_namedview_class_init,

NULL, /* class_finalize */

NULL, /* class_data */

sizeof(SPNamedView),

16, /* n_preallocs */

(GInstanceInitFunc) sp_namedview_init,

NULL, /* value_table */

};

namedview_type = g_type_register_static(SP_TYPE_OBJECTGROUP, "SPNamedView", &namedview_info, (GTypeFlags)0);

}

return namedview_type;

}

static void sp_namedview_class_init(SPNamedViewClass * klass)

{

GObjectClass * gobject_class;

SPObjectClass * sp_object_class;

gobject_class = (GObjectClass *) klass;

sp_object_class = (SPObjectClass *) klass;

parent_class = (SPObjectGroupClass*) g_type_class_ref(SP_TYPE_OBJECTGROUP);

sp_object_class->build = sp_namedview_build;

sp_object_class->release = sp_namedview_release;

sp_object_class->set = sp_namedview_set;

sp_object_class->child_added = sp_namedview_child_added;

sp_object_class->remove_child = sp_namedview_remove_child;

sp_object_class->write = sp_namedview_write;

}

static void sp_namedview_init(SPNamedView *nv)

{

nv->editable = TRUE;

nv->showguides = TRUE;

nv->grids_visible = false;

nv->showborder = TRUE;

nv->showpageshadow = TRUE;

nv->guides = NULL;

nv->viewcount = 0;

nv->grids = NULL;

nv->default_layer_id = 0;

nv->connector_spacing = defaultConnSpacing;

new (&nv->snap_manager) SnapManager(nv);

}

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 = "#0000ff";

const char* gridempcolor = "#0000ff";

const char* gridopacity = "0.2";

const char* gridempopacity = "0.4";

const char* value = NULL;

if ((value = repr->attribute("gridoriginx"))) {

gridspacingx = 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 = sp_document_repr_doc(document);

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->setAttribute("gridoriginx", NULL);

repr->setAttribute("gridoriginy", NULL);

repr->setAttribute("gridspacingx", NULL);

repr->setAttribute("gridspacingy", NULL);

repr->setAttribute("gridcolor", NULL);

repr->setAttribute("gridempcolor", NULL);

repr->setAttribute("gridopacity", NULL);

repr->setAttribute("gridempopacity", NULL);

repr->setAttribute("gridempspacing", NULL);

}

}

static void sp_namedview_build(SPObject *object, SPDocument *document, Inkscape::XML::Node *repr)

{

SPNamedView *nv = (SPNamedView *) object;

SPObjectGroup *og = (SPObjectGroup *) object;

if (((SPObjectClass *) (parent_class))->build) {

(* ((SPObjectClass *) (parent_class))->build)(object, document, repr);

}

sp_object_read_attr(object, "inkscape:document-units");

sp_object_read_attr(object, "viewonly");

sp_object_read_attr(object, "showguides");

sp_object_read_attr(object, "showgrid");

sp_object_read_attr(object, "gridtolerance");

sp_object_read_attr(object, "guidetolerance");

sp_object_read_attr(object, "objecttolerance");

sp_object_read_attr(object, "guidecolor");

sp_object_read_attr(object, "guideopacity");

sp_object_read_attr(object, "guidehicolor");

sp_object_read_attr(object, "guidehiopacity");

sp_object_read_attr(object, "showborder");

sp_object_read_attr(object, "inkscape:showpageshadow");

sp_object_read_attr(object, "borderlayer");

sp_object_read_attr(object, "bordercolor");

sp_object_read_attr(object, "borderopacity");

sp_object_read_attr(object, "pagecolor");

sp_object_read_attr(object, "inkscape:pageopacity");

sp_object_read_attr(object, "inkscape:pageshadow");

sp_object_read_attr(object, "inkscape:zoom");

sp_object_read_attr(object, "inkscape:cx");

sp_object_read_attr(object, "inkscape:cy");

sp_object_read_attr(object, "inkscape:window-width");

sp_object_read_attr(object, "inkscape:window-height");

sp_object_read_attr(object, "inkscape:window-x");

sp_object_read_attr(object, "inkscape:window-y");

sp_object_read_attr(object, "inkscape:window-maximized");

sp_object_read_attr(object, "inkscape:snap-global");

sp_object_read_attr(object, "inkscape:snap-bbox");

sp_object_read_attr(object, "inkscape:snap-nodes");

sp_object_read_attr(object, "inkscape:snap-from-guide");

sp_object_read_attr(object, "inkscape:snap-center");

sp_object_read_attr(object, "inkscape:snap-smooth-nodes");

sp_object_read_attr(object, "inkscape:snap-midpoints");

sp_object_read_attr(object, "inkscape:snap-object-midpoints");

sp_object_read_attr(object, "inkscape:snap-bbox-edge-midpoints");

sp_object_read_attr(object, "inkscape:snap-bbox-midpoints");

sp_object_read_attr(object, "inkscape:snap-to-guides");

sp_object_read_attr(object, "inkscape:snap-grids");

sp_object_read_attr(object, "inkscape:snap-intersection-paths");

sp_object_read_attr(object, "inkscape:object-paths");

sp_object_read_attr(object, "inkscape:object-nodes");

sp_object_read_attr(object, "inkscape:bbox-paths");

sp_object_read_attr(object, "inkscape:bbox-nodes");

sp_object_read_attr(object, "inkscape:snap-page");

sp_object_read_attr(object, "inkscape:current-layer");

sp_object_read_attr(object, "inkscape:connector-spacing");

/* Construct guideline list */

for (SPObject *o = sp_object_first_child(SP_OBJECT(og)) ; o != NULL; o = SP_OBJECT_NEXT(o) ) {

if (SP_IS_GUIDE(o)) {

SPGuide * g = SP_GUIDE(o);

nv->guides = g_slist_prepend(nv->guides, g);

g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);

}

}

// backwards compatibility with grid settings (pre 0.46)

sp_namedview_generate_old_grid(nv, document, repr);

}

static void sp_namedview_release(SPObject *object)

{

SPNamedView *namedview = (SPNamedView *) object;

if (namedview->guides) {

g_slist_free(namedview->guides);

namedview->guides = NULL;

}

// delete grids:

while ( namedview->grids ) {

Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)namedview->grids->data; // get first entry

delete gr;

namedview->grids = g_slist_remove_link(namedview->grids, namedview->grids); // deletes first entry

}

if (((SPObjectClass *) parent_class)->release) {

((SPObjectClass *) parent_class)->release(object);

}

namedview->snap_manager.~SnapManager();

}

static void sp_namedview_set(SPObject *object, unsigned int key, const gchar *value)

{

SPNamedView *nv = SP_NAMEDVIEW(object);

// TODO investigate why we grab this and then never use it

SPUnit const &px = sp_unit_get_by_id(SP_UNIT_PX);

switch (key) {

case SP_ATTR_VIEWONLY:

nv->editable = (!value);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_SHOWGUIDES:

if (!value) { // show guides if not specified, for backwards compatibility

nv->showguides = TRUE;

} else {

nv->showguides = sp_str_to_bool(value);

}

sp_namedview_setup_guides(nv);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_SHOWGRIDS:

if (!value) { // don't show grids if not specified, for backwards compatibility

nv->grids_visible = false;

} else {

nv->grids_visible = sp_str_to_bool(value);

}

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_GRIDTOLERANCE:

nv->snap_manager.snapprefs.setGridTolerance(value ? g_ascii_strtod(value, NULL) : 10000);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_GUIDETOLERANCE:

nv->snap_manager.snapprefs.setGuideTolerance(value ? g_ascii_strtod(value, NULL) : 20);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_OBJECTTOLERANCE:

nv->snap_manager.snapprefs.setObjectTolerance(value ? g_ascii_strtod(value, NULL) : 20);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_GUIDECOLOR:

nv->guidecolor = (nv->guidecolor & 0xff) | (DEFAULTGUIDECOLOR & 0xffffff00);

if (value) {

nv->guidecolor = (nv->guidecolor & 0xff) | sp_svg_read_color(value, nv->guidecolor);

}

for (GSList *l = nv->guides; l != NULL; l = l->next) {

g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);

}

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_GUIDEOPACITY:

nv->guidecolor = (nv->guidecolor & 0xffffff00) | (DEFAULTGUIDECOLOR & 0xff);

sp_nv_read_opacity(value, &nv->guidecolor);

for (GSList *l = nv->guides; l != NULL; l = l->next) {

g_object_set(G_OBJECT(l->data), "color", nv->guidecolor, NULL);

}

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_GUIDEHICOLOR:

nv->guidehicolor = (nv->guidehicolor & 0xff) | (DEFAULTGUIDEHICOLOR & 0xffffff00);

if (value) {

nv->guidehicolor = (nv->guidehicolor & 0xff) | sp_svg_read_color(value, nv->guidehicolor);

}

for (GSList *l = nv->guides; l != NULL; l = l->next) {

g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);

}

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_GUIDEHIOPACITY:

nv->guidehicolor = (nv->guidehicolor & 0xffffff00) | (DEFAULTGUIDEHICOLOR & 0xff);

sp_nv_read_opacity(value, &nv->guidehicolor);

for (GSList *l = nv->guides; l != NULL; l = l->next) {

g_object_set(G_OBJECT(l->data), "hicolor", nv->guidehicolor, NULL);

}

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_SHOWBORDER:

nv->showborder = (value) ? sp_str_to_bool (value) : TRUE;

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_BORDERLAYER:

nv->borderlayer = SP_BORDER_LAYER_BOTTOM;

if (value && !strcasecmp(value, "true")) nv->borderlayer = SP_BORDER_LAYER_TOP;

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_BORDERCOLOR:

nv->bordercolor = (nv->bordercolor & 0xff) | (DEFAULTBORDERCOLOR & 0xffffff00);

if (value) {

nv->bordercolor = (nv->bordercolor & 0xff) | sp_svg_read_color (value, nv->bordercolor);

}

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_BORDEROPACITY:

nv->bordercolor = (nv->bordercolor & 0xffffff00) | (DEFAULTBORDERCOLOR & 0xff);

sp_nv_read_opacity(value, &nv->bordercolor);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_PAGECOLOR:

nv->pagecolor = (nv->pagecolor & 0xff) | (DEFAULTPAGECOLOR & 0xffffff00);

if (value) {

nv->pagecolor = (nv->pagecolor & 0xff) | sp_svg_read_color(value, nv->pagecolor);

}

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_PAGEOPACITY:

nv->pagecolor = (nv->pagecolor & 0xffffff00) | (DEFAULTPAGECOLOR & 0xff);

sp_nv_read_opacity(value, &nv->pagecolor);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_PAGESHADOW:

nv->pageshadow = value? atoi(value) : 2; // 2 is the default

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_SHOWPAGESHADOW:

nv->showpageshadow = (value) ? sp_str_to_bool(value) : TRUE;

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_ZOOM:

nv->zoom = value ? g_ascii_strtod(value, NULL) : 0; // zero means not set

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_CX:

nv->cx = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_CY:

nv->cy = value ? g_ascii_strtod(value, NULL) : HUGE_VAL; // HUGE_VAL means not set

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_WINDOW_WIDTH:

nv->window_width = value? atoi(value) : -1; // -1 means not set

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_WINDOW_HEIGHT:

nv->window_height = value ? atoi(value) : -1; // -1 means not set

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_WINDOW_X:

nv->window_x = value ? atoi(value) : 0;

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_WINDOW_Y:

nv->window_y = value ? atoi(value) : 0;

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_WINDOW_MAXIMIZED:

nv->window_maximized = value ? atoi(value) : 0;

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_GLOBAL:

nv->snap_manager.snapprefs.setSnapEnabledGlobally(value ? sp_str_to_bool(value) : TRUE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_BBOX:

nv->snap_manager.snapprefs.setSnapModeBBox(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_NODES:

nv->snap_manager.snapprefs.setSnapModeNode(value ? sp_str_to_bool(value) : TRUE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_CENTER:

nv->snap_manager.snapprefs.setIncludeItemCenter(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_GRIDS:

nv->snap_manager.snapprefs.setSnapToGrids(value ? sp_str_to_bool(value) : TRUE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_TO_GUIDES:

nv->snap_manager.snapprefs.setSnapToGuides(value ? sp_str_to_bool(value) : TRUE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_SMOOTH_NODES:

nv->snap_manager.snapprefs.setSnapSmoothNodes(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_LINE_MIDPOINTS:

nv->snap_manager.snapprefs.setSnapLineMidpoints(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_OBJECT_MIDPOINTS:

nv->snap_manager.snapprefs.setSnapObjectMidpoints(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_BBOX_EDGE_MIDPOINTS:

nv->snap_manager.snapprefs.setSnapBBoxEdgeMidpoints(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_BBOX_MIDPOINTS:

nv->snap_manager.snapprefs.setSnapBBoxMidpoints(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_FROM_GUIDE:

nv->snap_manager.snapprefs.setSnapModeGuide(value ? sp_str_to_bool(value) : TRUE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_INTERS_PATHS:

nv->snap_manager.snapprefs.setSnapIntersectionCS(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_OBJECT_PATHS:

nv->snap_manager.snapprefs.setSnapToItemPath(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_OBJECT_NODES:

nv->snap_manager.snapprefs.setSnapToItemNode(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_BBOX_PATHS:

nv->snap_manager.snapprefs.setSnapToBBoxPath(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_BBOX_NODES:

nv->snap_manager.snapprefs.setSnapToBBoxNode(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_SNAP_PAGE:

nv->snap_manager.snapprefs.setSnapToPageBorder(value ? sp_str_to_bool(value) : FALSE);

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_CURRENT_LAYER:

nv->default_layer_id = value ? g_quark_from_string(value) : 0;

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_CONNECTOR_SPACING:

nv->connector_spacing = value ? g_ascii_strtod(value, NULL) :

defaultConnSpacing;

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

case SP_ATTR_INKSCAPE_DOCUMENT_UNITS: {

/* The default unit if the document doesn't override this: e.g. for files saved as

SPUnit const *new_unit = &sp_unit_get_by_id(SP_UNIT_PX);

if (value) {

SPUnit const *const req_unit = sp_unit_get_by_abbreviation(value);

if ( req_unit == NULL ) {

g_warning("Unrecognized unit `%s'", value);

/* fixme: Document errors should be reported in the status bar or

} else if ( req_unit->base == SP_UNIT_ABSOLUTE ||

req_unit->base == SP_UNIT_DEVICE ) {

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). */

}

}

nv->doc_units = new_unit;

object->requestModified(SP_OBJECT_MODIFIED_FLAG);

break;

}

default:

if (((SPObjectClass *) (parent_class))->set) {

((SPObjectClass *) (parent_class))->set(object, key, value);

}

break;

}

}

static Inkscape::CanvasGrid*

sp_namedview_add_grid(SPNamedView *nv, Inkscape::XML::Node *repr, SPDesktop *desktop) {

Inkscape::CanvasGrid* grid = NULL;

//check if namedview already has an object for this grid

for (GSList *l = nv->grids; l != NULL; l = l->next) {

Inkscape::CanvasGrid* g = (Inkscape::CanvasGrid*) l->data;

if (repr == g->repr) {

grid = g;

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 NULL;

}

grid = Inkscape::CanvasGrid::NewGrid(nv, repr, nv->document, gridtype);

nv->grids = g_slist_append(nv->grids, grid);

}

if (!desktop) {

//add canvasitem to all desktops

for (GSList *l = nv->views; l != NULL; l = l->next) {

SPDesktop *dt = static_cast<SPDesktop*>(l->data);

grid->createCanvasItem(dt);

}

} else {

//add canvasitem only for specified desktop

grid->createCanvasItem(desktop);

}

return grid;

}

static void sp_namedview_child_added(SPObject *object, Inkscape::XML::Node *child, Inkscape::XML::Node *ref)

{

SPNamedView *nv = (SPNamedView *) object;

if (((SPObjectClass *) (parent_class))->child_added) {

(* ((SPObjectClass *) (parent_class))->child_added)(object, child, ref);

}

if (!strcmp(child->name(), "inkscape:grid")) {

sp_namedview_add_grid(nv, child, NULL);

} else {

SPObject *no = object->document->getObjectByRepr(child);

if ( !SP_IS_OBJECT(no) )

return;

if (SP_IS_GUIDE(no)) {

SPGuide *g = (SPGuide *) no;

nv->guides = g_slist_prepend(nv->guides, g);

g_object_set(G_OBJECT(g), "color", nv->guidecolor, "hicolor", nv->guidehicolor, NULL);

if (nv->editable) {

for (GSList *l = nv->views; l != NULL; l = l->next) {

sp_guide_show(g, static_cast<SPDesktop*>(l->data)->guides, (GCallback) sp_dt_guide_event);

if (static_cast<SPDesktop*>(l->data)->guides_active)

sp_guide_sensitize(g,

sp_desktop_canvas(static_cast<SPDesktop*> (l->data)),

TRUE);

sp_namedview_show_single_guide(SP_GUIDE(g), nv->showguides);

}

}

}

}

}

static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)

{

SPNamedView *nv = (SPNamedView *) object;

if (!strcmp(child->name(), "inkscape:grid")) {

for ( GSList *iter = nv->grids ; iter ; iter = iter->next ) {

Inkscape::CanvasGrid *gr = (Inkscape::CanvasGrid *)iter->data;

if ( gr->repr == child ) {

delete gr;

nv->grids = g_slist_remove_link(nv->grids, iter);

break;

}

}

} else {

GSList **ref = &nv->guides;

for ( GSList *iter = nv->guides ; iter ; iter = iter->next ) {

if ( SP_OBJECT_REPR((SPObject *)iter->data) == child ) {

*ref = iter->next;

iter->next = NULL;

g_slist_free_1(iter);

break;

}

ref = &iter->next;

}

}

if (((SPObjectClass *) (parent_class))->remove_child) {

(* ((SPObjectClass *) (parent_class))->remove_child)(object, child);

}

}

static Inkscape::XML::Node *sp_namedview_write(SPObject *object, Inkscape::XML::Document *doc, Inkscape::XML::Node *repr, guint flags)

{

if ( ( flags & SP_OBJECT_WRITE_EXT ) &&

repr != SP_OBJECT_REPR(object) )

{

if (repr) {

repr->mergeFrom(SP_OBJECT_REPR(object), "id");

} else {

repr = SP_OBJECT_REPR(object)->duplicate(doc);

}

}

return repr;

}

void SPNamedView::show(SPDesktop *desktop)

{

for (GSList *l = guides; l != NULL; l = l->next) {

sp_guide_show(SP_GUIDE(l->data), desktop->guides, (GCallback) sp_dt_guide_event);

if (desktop->guides_active) {

sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(desktop), TRUE);

}

sp_namedview_show_single_guide(SP_GUIDE(l->data), showguides);

}

views = g_slist_prepend(views, desktop);

// generate grids specified in SVG:

Inkscape::XML::Node *repr = SP_OBJECT_REPR(this);

if (repr) {

for (Inkscape::XML::Node * child = repr->firstChild() ; child != NULL; child = child->next() ) {

if (!strcmp(child->name(), "inkscape:grid")) {

sp_namedview_add_grid(this, child, desktop);

}

}

}

desktop->showGrids(grids_visible, false);

}

#define MIN_ONSCREEN_DISTANCE 50

void sp_namedview_window_from_document(SPDesktop *desktop)

{

SPNamedView *nv = desktop->namedview;

Inkscape::Preferences *prefs = Inkscape::Preferences::get();

bool geometry_from_file = prefs->getBool("/options/savewindowgeometry/value");

// restore window size and position stored with the document

if (geometry_from_file) {

if (nv->window_maximized) {

Gtk::Window *win = desktop->getToplevel();

if (win){

win->maximize();

}

} else {

gint w = MIN(gdk_screen_width(), nv->window_width);

gint h = MIN(gdk_screen_height(), nv->window_height);

// prevent the window from moving off the screen to the right or to the bottom

gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);

gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);

// prevent the window from moving off the screen to the left or to the top

x = MAX(MIN_ONSCREEN_DISTANCE - nv->window_width, x);

y = MAX(MIN_ONSCREEN_DISTANCE - nv->window_height, y);

if (w>0 && h>0) {

desktop->setWindowSize(w, h);

desktop->setWindowPosition(Geom::Point(x, y));

}

}

}

// restore zoom and view

if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !IS_NAN(nv->zoom)

&& nv->cx != HUGE_VAL && !IS_NAN(nv->cx)

&& nv->cy != HUGE_VAL && !IS_NAN(nv->cy)) {

desktop->zoom_absolute(nv->cx, nv->cy, nv->zoom);

} else if (sp_desktop_document(desktop)) { // document without saved zoom, zoom to its page

desktop->zoom_page();

}

// cancel any history of zooms up to this point

if (desktop->zooms_past) {

g_list_free(desktop->zooms_past);

desktop->zooms_past = NULL;

}

}

void sp_namedview_update_layers_from_document (SPDesktop *desktop)

{

SPObject *layer = NULL;

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 = NULL;

}

// if that didn't work out, look for the topmost layer

if (!layer) {

SPObject *iter = sp_object_first_child(SP_DOCUMENT_ROOT(document));

for ( ; iter ; iter = SP_OBJECT_NEXT(iter) ) {

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();

bool save_geometry_in_file = prefs->getBool("/options/savewindowgeometry/value", 0);

Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);

Geom::Rect const r = desktop->get_display_area();

// saving window geometry is not undoable

bool saved = SPDocumentUndo::get_undo_sensitive(sp_desktop_document(desktop));

SPDocumentUndo::set_undo_sensitive(sp_desktop_document(desktop), false);

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

SPDocumentUndo::set_undo_sensitive(sp_desktop_document(desktop), saved);

}

void SPNamedView::hide(SPDesktop const *desktop)

{

g_assert(desktop != NULL);

g_assert(g_slist_find(views, desktop));

for (GSList *l = guides; l != NULL; l = l->next) {

sp_guide_hide(SP_GUIDE(l->data), sp_desktop_canvas(desktop));

}

views = g_slist_remove(views, desktop);

}

void SPNamedView::activateGuides(gpointer desktop, gboolean active)

{

g_assert(desktop != NULL);

g_assert(g_slist_find(views, desktop));

SPDesktop *dt = static_cast<SPDesktop*>(desktop);

for (GSList *l = guides; l != NULL; l = l->next) {

sp_guide_sensitize(SP_GUIDE(l->data), sp_desktop_canvas(dt), active);

}

}

static void sp_namedview_setup_guides(SPNamedView *nv)

{

for (GSList *l = nv->guides; l != NULL; l = l->next) {

sp_namedview_show_single_guide(SP_GUIDE(l->data), nv->showguides);

}

}

static void sp_namedview_show_single_guide(SPGuide* guide, bool show)

{

for (GSList *v = guide->views; v != NULL; v = v->next) {

if (show) {

sp_canvas_item_show(SP_CANVAS_ITEM(v->data));

sp_canvas_item_show(SP_CANVAS_ITEM(SP_GUIDELINE(v->data)->origin));

} else {

sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));

sp_canvas_item_hide(SP_CANVAS_ITEM(SP_GUIDELINE(v->data)->origin));

}

}

}

void sp_namedview_toggle_guides(SPDocument *doc, Inkscape::XML::Node *repr)

{

unsigned int v;

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 = SPDocumentUndo::get_undo_sensitive(doc);

SPDocumentUndo::set_undo_sensitive(doc, false);

sp_repr_set_boolean(repr, "showguides", v);

SPDocumentUndo::set_undo_sensitive(doc, saved);

doc->setModifiedSinceSave();

}

void sp_namedview_show_grids(SPNamedView * namedview, bool show, bool dirty_document)

{

namedview->grids_visible = show;

SPDocument *doc = SP_OBJECT_DOCUMENT (namedview);

Inkscape::XML::Node *repr = SP_OBJECT_REPR(namedview);

bool saved = SPDocumentUndo::get_undo_sensitive(doc);

SPDocumentUndo::set_undo_sensitive(doc, false);

sp_repr_set_boolean(repr, "showgrid", namedview->grids_visible);

SPDocumentUndo::set_undo_sensitive(doc, saved);

/* we don't want the document to get dirty on startup; that's when

if (dirty_document) {

doc->setModifiedSinceSave();

}

}

gchar const *SPNamedView::getName() const

{

SPException ex;

SP_EXCEPTION_INIT(&ex);

return sp_object_getAttribute(SP_OBJECT(this), "id", &ex);

}

guint SPNamedView::getViewCount()

{

return ++viewcount;

}

GSList const *SPNamedView::getViewList() const

{

return views;

}

static gboolean sp_str_to_bool(const gchar *str)

{

if (str) {

if (!g_strcasecmp(str, "true") ||

!g_strcasecmp(str, "yes") ||

!g_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 != NULL, NULL);

SPObject *nv = sp_item_group_get_child_by_name((SPGroup *) document->root, NULL, "sodipodi:namedview");

g_assert(nv != NULL);

if (id == NULL) {

return (SPNamedView *) nv;

}

while (nv && strcmp(nv->getId(), id)) {

nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");

}

return (SPNamedView *) nv;

}

SPMetric SPNamedView::getDefaultMetric() const

{

if (doc_units) {

return sp_unit_get_metric(doc_units);

} else {

return SP_PT;

}

}

Inkscape::CanvasGrid * sp_namedview_get_first_enabled_grid(SPNamedView *namedview)

{

for (GSList const * l = namedview->grids; l != NULL; l = l->next) {

Inkscape::CanvasGrid * grid = (Inkscape::CanvasGrid*) l->data;

if (grid->isEnabled())

return grid;

}

return NULL;

}

void SPNamedView::translateGuides(Geom::Translate const &tr) {

for (GSList *l = guides; l != NULL; l = l->next) {

SPGuide &guide = *SP_GUIDE(l->data);

Geom::Point point_on_line = guide.point_on_line;

point_on_line[0] += tr[0];

point_on_line[1] += tr[1];

sp_guide_moveto(guide, point_on_line, true);

}

}

void SPNamedView::scrollAllDesktops(double dx, double dy, bool is_scrolling) {

for(GSList *l = views; l; l = l->next) {

SPDesktop *desktop = static_cast<SPDesktop *>(l->data);

desktop->scroll_world_in_svg_coords(dx, dy, is_scrolling);

}

}