sp-namedview.cpp revision 4aabf2a995bdba7a42110f4292cb0e194722e429
#define __SP_NAMEDVIEW_C__
/*
* <sodipodi:namedview> implementation
*
* Authors:
* Lauris Kaplinski <lauris@kaplinski.com>
* bulia byak <buliabyak@users.sf.net>
*
* Copyright (C) 2006 Johan Engelen <johan@shouraizou.nl>
* Copyright (C) 1999-2005 Authors
* Copyright (C) 2000-2001 Ximian, Inc.
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include "config.h"
#include "display/canvas-grid.h"
#include "display/canvas-axonomgrid.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 "prefs-utils.h"
#include "desktop.h"
#include "conn-avoid-ref.h" // for defaultConnSpacing.
#include "isnan.h" //temp fix for isnan(). include last
#define DEFAULTTOLERANCE 0.4
#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::Node *repr, guint flags);
static void sp_namedview_setup_guides(SPNamedView * nv);
static void sp_namedview_setup_grid(SPNamedView * nv);
static void sp_namedview_setup_grid_item(SPNamedView * nv, SPCanvasItem * item);
static gboolean sp_str_to_bool(const gchar *str);
static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit);
static gboolean sp_nv_read_opacity(const gchar *str, guint32 *color);
static SPObjectGroupClass * parent_class;
GType
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->showgrid = FALSE;
nv->gridtype = 0;
nv->showguides = TRUE;
nv->showborder = TRUE;
nv->showpageshadow = TRUE;
nv->guides = NULL;
nv->viewcount = 0;
nv->default_layer_id = 0;
nv->connector_spacing = defaultConnSpacing;
new (&nv->snap_manager) SnapManager(nv);
}
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, "showgrid");
sp_object_read_attr(object, "gridtype");
sp_object_read_attr(object, "showguides");
sp_object_read_attr(object, "gridtolerance");
sp_object_read_attr(object, "guidetolerance");
sp_object_read_attr(object, "objecttolerance");
sp_object_read_attr(object, "inkscape:has_abs_tolerance");
sp_object_read_attr(object, "gridoriginx");
sp_object_read_attr(object, "gridoriginy");
sp_object_read_attr(object, "gridspacingx");
sp_object_read_attr(object, "gridspacingy");
sp_object_read_attr(object, "gridanglex");
sp_object_read_attr(object, "gridanglez");
sp_object_read_attr(object, "gridempspacing");
sp_object_read_attr(object, "gridcolor");
sp_object_read_attr(object, "gridempcolor");
sp_object_read_attr(object, "gridopacity");
sp_object_read_attr(object, "gridempopacity");
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:grid-bbox");
sp_object_read_attr(object, "inkscape:guide-bbox");
sp_object_read_attr(object, "inkscape:object-bbox");
sp_object_read_attr(object, "inkscape:grid-points");
sp_object_read_attr(object, "inkscape:guide-points");
sp_object_read_attr(object, "inkscape:object-points");
sp_object_read_attr(object, "inkscape:object-paths");
sp_object_read_attr(object, "inkscape:object-nodes");
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);
}
}
}
static void sp_namedview_release(SPObject *object)
{
SPNamedView *namedview = (SPNamedView *) object;
if (namedview->guides) {
g_slist_free(namedview->guides);
namedview->guides = NULL;
}
while (namedview->gridviews) {
gtk_object_unref(GTK_OBJECT(namedview->gridviews->data));
namedview->gridviews = g_slist_remove(namedview->gridviews, namedview->gridviews->data);
}
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);
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_SHOWGRID:
nv->showgrid = sp_str_to_bool(value);
sp_namedview_setup_grid(nv);
/* Disable grid snaps if the grid is turned off */
nv->snap_manager.grid.setEnabled(nv->showgrid);
nv->snap_manager.axonomgrid.setEnabled(nv->showgrid);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_GRIDTYPE:
nv->gridtype = sp_str_to_bool(value);
sp_namedview_setup_grid(nv);
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_GRIDTOLERANCE:
nv->gridtoleranceunit = &px;
nv->gridtolerance = DEFAULTTOLERANCE;
if (value) {
sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridtolerance, &nv->gridtoleranceunit);
}
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_GUIDETOLERANCE:
nv->guidetoleranceunit = &px;
nv->guidetolerance = DEFAULTTOLERANCE;
if (value) {
sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->guidetolerance, &nv->guidetoleranceunit);
}
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_OBJECTTOLERANCE:
nv->objecttoleranceunit = &px;
nv->objecttolerance = DEFAULTTOLERANCE;
if (value) {
sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->objecttolerance, &nv->objecttoleranceunit);
}
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_ABS_TOLERANCE:
if (!value)
nv->has_abs_tolerance = true;
else
nv->has_abs_tolerance = (sp_str_to_bool (value) == TRUE);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_GRIDORIGINX:
case SP_ATTR_GRIDORIGINY:
{
unsigned const d = (key == SP_ATTR_GRIDORIGINY);
nv->gridunit = nv->doc_units;
nv->gridorigin[d] = 0.0;
if (value) {
sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridorigin[d], &nv->gridunit);
}
nv->gridorigin[d] = sp_units_get_pixels(nv->gridorigin[d], *(nv->gridunit));
sp_namedview_setup_grid(nv);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_GRIDSPACINGX:
case SP_ATTR_GRIDSPACINGY:
{
unsigned const d = (key == SP_ATTR_GRIDSPACINGY);
nv->gridunit = nv->doc_units;
nv->gridspacing[d] = 1.0;
if (value) {
sp_nv_read_length(value, SP_UNIT_ABSOLUTE | SP_UNIT_DEVICE, &nv->gridspacing[d], &nv->gridunit);
}
nv->gridspacing[d] = sp_units_get_pixels(nv->gridspacing[d], *(nv->gridunit));
sp_namedview_setup_grid(nv);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_GRIDANGLEX:
case SP_ATTR_GRIDANGLEZ:
{
unsigned const d = (key == SP_ATTR_GRIDANGLEZ); // 0=X 1=Z
nv->gridangle[d] = 30; // 30 deg default
if (value) {
nv->gridangle[d] = g_ascii_strtod(value, NULL);
}
sp_namedview_setup_grid(nv);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
}
case SP_ATTR_GRIDCOLOR:
nv->gridcolor = (nv->gridcolor & 0xff) | (DEFAULTGRIDCOLOR & 0xffffff00);
if (value) {
nv->gridcolor = (nv->gridcolor & 0xff) | sp_svg_read_color(value, nv->gridcolor);
}
sp_namedview_setup_grid(nv);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_GRIDEMPCOLOR:
nv->gridempcolor = (nv->gridempcolor & 0xff) | (DEFAULTGRIDEMPCOLOR & 0xffffff00);
if (value) {
nv->gridempcolor = (nv->gridempcolor & 0xff) | sp_svg_read_color(value, nv->gridempcolor);
}
sp_namedview_setup_grid(nv);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_GRIDOPACITY:
nv->gridcolor = (nv->gridcolor & 0xffffff00) | (DEFAULTGRIDCOLOR & 0xff);
sp_nv_read_opacity(value, &nv->gridcolor);
sp_namedview_setup_grid(nv);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_GRIDEMPOPACITY:
nv->gridempcolor = (nv->gridempcolor & 0xffffff00) | (DEFAULTGRIDEMPCOLOR & 0xff);
sp_nv_read_opacity(value, &nv->gridempcolor);
sp_namedview_setup_grid(nv);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_GRIDEMPSPACING:
nv->gridempspacing = DEFAULTGRIDEMPSPACING;
if (value != NULL)
nv->gridempspacing = atoi(value);
sp_namedview_setup_grid(nv);
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) : -1; // -1 means not set
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_INKSCAPE_WINDOW_Y:
nv->window_y = value ? atoi(value) : -1; // -1 means not set
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_INKSCAPE_GRID_BBOX:
nv->snap_manager.grid.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
nv->snap_manager.axonomgrid.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_INKSCAPE_GRID_POINTS:
nv->snap_manager.grid.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
nv->snap_manager.axonomgrid.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_INKSCAPE_GUIDE_BBOX:
nv->snap_manager.guide.setSnapTo(Inkscape::Snapper::BBOX_POINT, value ? sp_str_to_bool(value) : TRUE);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_INKSCAPE_GUIDE_POINTS:
nv->snap_manager.guide.setSnapTo(Inkscape::Snapper::SNAP_POINT, value ? sp_str_to_bool(value) : FALSE);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_INKSCAPE_OBJECT_BBOX:
nv->snap_manager.object.setSnapTo(Inkscape::Snapper::BBOX_POINT, (value) ? sp_str_to_bool(value) : FALSE);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_INKSCAPE_OBJECT_POINTS:
nv->snap_manager.object.setSnapTo(Inkscape::Snapper::SNAP_POINT, (value) ? sp_str_to_bool(value) : FALSE);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_INKSCAPE_OBJECT_PATHS:
nv->snap_manager.object.setSnapToPaths(value ? sp_str_to_bool(value) : TRUE);
object->requestModified(SP_OBJECT_MODIFIED_FLAG);
break;
case SP_ATTR_INKSCAPE_OBJECT_NODES:
nv->snap_manager.object.setSnapToNodes(value ? sp_str_to_bool(value) : TRUE);
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
* `plain SVG', or non-inkscape files, or files created by an inkscape 0.40 &
* earlier.
*
* Here we choose `px': useful for screen-destined SVGs, and fewer bug reports
* about "not the same numbers as what's in the SVG file" (at least for documents
* without a viewBox attribute on the root <svg> element). Similarly, it's also
* the most reliable unit (i.e. least likely to be wrong in different viewing
* conditions) for viewBox-less SVG files given that it's the unit that inkscape
* uses for all coordinates.
*
* For documents that do have a viewBox attribute on the root <svg> element, it
* might be better if we used either viewBox coordinates or if we used the unit of
* say the width attribute of the root <svg> element. However, these pose problems
* in that they aren't in general absolute units as currently required by
* doc_units.
*/
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
* 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->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 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);
}
const gchar *id = child->attribute("id");
SPObject *no = object->document->getObjectById(id);
g_assert(SP_IS_OBJECT(no));
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);
if (nv->showguides) {
for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
}
} else {
for (GSList *v = SP_GUIDE(g)->views; v != NULL; v = v->next) {
sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
}
}
}
}
}
}
static void sp_namedview_remove_child(SPObject *object, Inkscape::XML::Node *child)
{
SPNamedView *nv = (SPNamedView *) object;
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::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();
}
}
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);
}
if (showguides) {
for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
}
} else {
for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
}
}
}
views = g_slist_prepend(views, desktop);
SPCanvasItem * item = sp_canvas_item_new(sp_desktop_grid(desktop), INKSCAPE_TYPE_CXYGRID, NULL);
// since we're keeping a copy, we need to bump up the ref count
gtk_object_ref(GTK_OBJECT(item));
gridviews = g_slist_prepend(gridviews, item);
item = sp_canvas_item_new(sp_desktop_grid(desktop), SP_TYPE_CAXONOMGRID, NULL);
// since we're keeping a copy, we need to bump up the ref count
gtk_object_ref(GTK_OBJECT(item));
gridviews = g_slist_prepend(gridviews, item);
sp_namedview_setup_grid(this);
}
#define MIN_ONSCREEN_DISTANCE 50
/*
* Restores window geometry from the document settings
*/
void sp_namedview_window_from_document(SPDesktop *desktop)
{
SPNamedView *nv = desktop->namedview;
gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
// restore window size and position
if (save_geometry) {
gint w = MIN(gdk_screen_width(), nv->window_width);
gint h = MIN(gdk_screen_height(), nv->window_height);
gint x = MIN(gdk_screen_width() - MIN_ONSCREEN_DISTANCE, nv->window_x);
gint y = MIN(gdk_screen_height() - MIN_ONSCREEN_DISTANCE, nv->window_y);
if (w>0 && h>0 && x>0 && y>0) {
x = MIN(gdk_screen_width() - w, x);
y = MIN(gdk_screen_height() - h, y);
}
if (w>0 && h>0)
desktop->setWindowSize(w, h);
if (x>0 && y>0)
desktop->setWindowPosition(NR::Point(x, y));
}
// restore zoom and view
if (nv->zoom != 0 && nv->zoom != HUGE_VAL && !isNaN(nv->zoom)
&& nv->cx != HUGE_VAL && !isNaN(nv->cx)
&& nv->cy != HUGE_VAL && !isNaN(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)
{
gint save_geometry = prefs_get_int_attribute("options.savewindowgeometry", "value", 0);
Inkscape::XML::Node *view = SP_OBJECT_REPR(desktop->namedview);
NR::Rect const r = desktop->get_display_area();
// saving window geometry is not undoable
bool saved = sp_document_get_undo_sensitive(sp_desktop_document(desktop));
sp_document_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()[NR::X]);
sp_repr_set_svg_double(view, "inkscape:cy", r.midpoint()[NR::Y]);
if (save_geometry) {
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);
}
view->setAttribute("inkscape:current-layer", SP_OBJECT_ID(desktop->currentLayer()));
// restore undoability
sp_document_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);
GSList *l;
for (l = gridviews; l != NULL; l = l->next) {
if (! l->data) {
continue;
}
SPCanvasItem *item = static_cast<SPCanvasItem*>(l->data);
if (item->canvas == sp_desktop_canvas(desktop)) {
sp_canvas_item_hide(SP_CANVAS_ITEM(l->data));
gtk_object_unref(GTK_OBJECT(l->data));
gridviews = g_slist_remove(gridviews, l->data);
}
}
}
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) {
if (nv->showguides) {
for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
sp_canvas_item_show(SP_CANVAS_ITEM(v->data));
}
} else {
for (GSList *v = SP_GUIDE(l->data)->views; v != NULL; v = v->next) {
sp_canvas_item_hide(SP_CANVAS_ITEM(v->data));
}
}
}
}
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 = sp_document_get_undo_sensitive(doc);
sp_document_set_undo_sensitive(doc, false);
sp_repr_set_boolean(repr, "showguides", v);
doc->rroot->setAttribute("sodipodi:modified", "true");
sp_document_set_undo_sensitive(doc, saved);
}
void sp_namedview_toggle_grid(SPDocument *doc, Inkscape::XML::Node *repr)
{
unsigned int v;
sp_repr_get_boolean(repr, "showgrid", &v);
v = !v;
bool saved = sp_document_get_undo_sensitive(doc);
sp_document_set_undo_sensitive(doc, false);
sp_repr_set_boolean(repr, "showgrid", v);
doc->rroot->setAttribute("sodipodi:modified", "true");
sp_document_set_undo_sensitive(doc, saved);
}
void sp_namedview_set_gridtype(unsigned int type, SPDocument *doc, Inkscape::XML::Node *repr)
{
bool saved = sp_document_get_undo_sensitive(doc);
sp_document_set_undo_sensitive(doc, false);
sp_repr_set_int(repr, "gridtype", (gint)type);
doc->rroot->setAttribute("sodipodi:modified", "true");
sp_document_set_undo_sensitive(doc, saved);
}
static void sp_namedview_setup_grid(SPNamedView *nv)
{
for (GSList *l = nv->gridviews; l != NULL; l = l->next) {
sp_namedview_setup_grid_item(nv, SP_CANVAS_ITEM(l->data));
}
}
static void sp_namedview_setup_grid_item(SPNamedView *nv, SPCanvasItem *item)
{
bool btype = SP_IS_CAXONOMGRID(GTK_OBJECT(item));
if ( nv->showgrid && (nv->gridtype == btype) ) {
sp_canvas_item_show(item);
} else {
sp_canvas_item_hide(item);
}
sp_canvas_item_set((GtkObject *) item,
"color", nv->gridcolor,
"originx", nv->gridorigin[NR::X],
"originy", nv->gridorigin[NR::Y],
"spacingy", nv->gridspacing[NR::Y],
"empcolor", nv->gridempcolor,
"empspacing", nv->gridempspacing,
NULL);
if (!btype){
// CXYGRID
sp_canvas_item_set((GtkObject *) item,
"spacingx", nv->gridspacing[NR::X],
NULL);
} else {
// CAXONOMGRID
sp_canvas_item_set((GtkObject *) item,
"anglex", nv->gridangle[0],
"anglez", nv->gridangle[1],
NULL);
}
}
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;
}
/* This should be moved somewhere */
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;
}
/* fixme: Collect all these length parsing methods and think common sane API */
static gboolean sp_nv_read_length(const gchar *str, guint base, gdouble *val, const SPUnit **unit)
{
if (!str) {
return FALSE;
}
gchar *u;
gdouble v = g_ascii_strtod(str, &u);
if (!u) {
return FALSE;
}
while (isspace(*u)) {
u += 1;
}
if (!*u) {
/* No unit specified - keep default */
*val = v;
return TRUE;
}
if (base & SP_UNIT_DEVICE) {
if (u[0] && u[1] && !isalnum(u[2]) && !strncmp(u, "px", 2)) {
*unit = &sp_unit_get_by_id(SP_UNIT_PX);
*val = v;
return TRUE;
}
}
if (base & SP_UNIT_ABSOLUTE) {
if (!strncmp(u, "pt", 2)) {
*unit = &sp_unit_get_by_id(SP_UNIT_PT);
} else if (!strncmp(u, "mm", 2)) {
*unit = &sp_unit_get_by_id(SP_UNIT_MM);
} else if (!strncmp(u, "cm", 2)) {
*unit = &sp_unit_get_by_id(SP_UNIT_CM);
} else if (!strncmp(u, "m", 1)) {
*unit = &sp_unit_get_by_id(SP_UNIT_M);
} else if (!strncmp(u, "in", 2)) {
*unit = &sp_unit_get_by_id(SP_UNIT_IN);
} else {
return FALSE;
}
*val = v;
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->id, id)) {
nv = sp_item_group_get_child_by_name((SPGroup *) document->root, nv, "sodipodi:namedview");
}
return (SPNamedView *) nv;
}
/**
* Returns namedview's default metric.
*/
SPMetric SPNamedView::getDefaultMetric() const
{
if (doc_units) {
return sp_unit_get_metric(doc_units);
} else {
return SP_PT;
}
}
/*
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 :