diff options
Diffstat (limited to 'src/sp-guide.cpp')
| -rw-r--r-- | src/sp-guide.cpp | 545 |
1 files changed, 0 insertions, 545 deletions
diff --git a/src/sp-guide.cpp b/src/sp-guide.cpp deleted file mode 100644 index fe6d0b64a..000000000 --- a/src/sp-guide.cpp +++ /dev/null @@ -1,545 +0,0 @@ -/* - * Inkscape guideline implementation - * - * Authors: - * Lauris Kaplinski <lauris@kaplinski.com> - * Peter Moulder <pmoulder@mail.csse.monash.edu.au> - * Johan Engelen - * Jon A. Cruz <jon@joncruz.org> - * Abhishek Sharma - * - * Copyright (C) 2000-2002 authors - * Copyright (C) 2004 Monash University - * Copyright (C) 2007 Johan Engelen - * - * Released under GNU GPL, read the file 'COPYING' for more information - */ - -#ifdef HAVE_CONFIG_H -#include <config.h> -#endif - -#include <algorithm> -#include <cstring> -#include <string> - -#include "display/sp-canvas.h" -#include "display/guideline.h" -#include "svg/svg.h" -#include "svg/svg-color.h" -#include "svg/stringstream.h" -#include "attributes.h" -#include "sp-guide.h" -#include <sp-item-notify-moveto.h> -#include <glibmm/i18n.h> -#include <xml/repr.h> -#include <remove-last.h> -#include "inkscape.h" -#include "desktop.h" -#include "sp-root.h" -#include "sp-namedview.h" -#include "document-undo.h" -#include "helper-fns.h" -#include "verbs.h" - -using Inkscape::DocumentUndo; -using std::vector; - -SPGuide::SPGuide() - : SPObject() - , label(NULL) - , locked(0) - , normal_to_line(Geom::Point(0.,1.)) - , point_on_line(Geom::Point(0.,0.)) - , color(0x0000ff7f) - , hicolor(0xff00007f) -{} - -void SPGuide::setColor(guint32 c) -{ - color = c; - - for(std::vector<SPGuideLine *>::const_iterator it = this->views.begin(); it != this->views.end(); ++it) { - sp_guideline_set_color(*it, this->color); - } -} - -void SPGuide::build(SPDocument *document, Inkscape::XML::Node *repr) -{ - SPObject::build(document, repr); - - this->readAttr( "inkscape:color" ); - this->readAttr( "inkscape:label" ); - this->readAttr( "inkscape:locked" ); - this->readAttr( "orientation" ); - this->readAttr( "position" ); - - /* Register */ - document->addResource("guide", this); -} - -void SPGuide::release() -{ - for(std::vector<SPGuideLine *>::const_iterator it = this->views.begin(); it != this->views.end(); ++it) { - sp_guideline_delete(*it); - } - this->views.clear(); - - if (this->document) { - // Unregister ourselves - this->document->removeResource("guide", this); - } - - SPObject::release(); -} - -void SPGuide::set(unsigned int key, const gchar *value) { - switch (key) { - case SP_ATTR_INKSCAPE_COLOR: - if (value) { - this->setColor(sp_svg_read_color(value, 0x0000ff00) | 0x7f); - } - break; - case SP_ATTR_INKSCAPE_LABEL: - // this->label already freed in sp_guideline_set_label (src/display/guideline.cpp) - // see bug #1498444, bug #1469514 - if (value) { - this->label = g_strdup(value); - } else { - this->label = NULL; - } - - this->set_label(this->label, false); - break; - case SP_ATTR_INKSCAPE_LOCKED: - if (value) { - this->set_locked(helperfns_read_bool(value, false), false); - } - break; - case SP_ATTR_ORIENTATION: - { - if (value && !strcmp(value, "horizontal")) { - /* Visual representation of a horizontal line, constrain vertically (y coordinate). */ - this->normal_to_line = Geom::Point(0., 1.); - } else if (value && !strcmp(value, "vertical")) { - this->normal_to_line = Geom::Point(1., 0.); - } else if (value) { - gchar ** strarray = g_strsplit(value, ",", 2); - double newx, newy; - unsigned int success = sp_svg_number_read_d(strarray[0], &newx); - success += sp_svg_number_read_d(strarray[1], &newy); - g_strfreev (strarray); - if (success == 2 && (fabs(newx) > 1e-6 || fabs(newy) > 1e-6)) { - Geom::Point direction(newx, newy); - direction.normalize(); - this->normal_to_line = direction; - } else { - // default to vertical line for bad arguments - this->normal_to_line = Geom::Point(1., 0.); - } - } else { - // default to vertical line for bad arguments - this->normal_to_line = Geom::Point(1., 0.); - } - this->set_normal(this->normal_to_line, false); - } - break; - case SP_ATTR_POSITION: - { - if (value) { - gchar ** strarray = g_strsplit(value, ",", 2); - double newx, newy; - unsigned int success = sp_svg_number_read_d(strarray[0], &newx); - success += sp_svg_number_read_d(strarray[1], &newy); - g_strfreev (strarray); - if (success == 2) { - // If root viewBox set, interpret guides in terms of viewBox (90/96) - SPRoot *root = document->getRoot(); - if( root->viewBox_set ) { - if(Geom::are_near((root->width.computed * root->viewBox.height()) / (root->viewBox.width() * root->height.computed), 1.0, Geom::EPSILON)) { - // for uniform scaling, try to reduce numerical error - double vbunit2px = (root->width.computed / root->viewBox.width() + root->height.computed / root->viewBox.height())/2.0; - newx = newx * vbunit2px; - newy = newy * vbunit2px; - } else { - newx = newx * root->width.computed / root->viewBox.width(); - newy = newy * root->height.computed / root->viewBox.height(); - } - } - this->point_on_line = Geom::Point(newx, newy); - } else if (success == 1) { - // before 0.46 style guideline definition. - const gchar *attr = this->getRepr()->attribute("orientation"); - if (attr && !strcmp(attr, "horizontal")) { - this->point_on_line = Geom::Point(0, newx); - } else { - this->point_on_line = Geom::Point(newx, 0); - } - } - } else { - // default to (0,0) for bad arguments - this->point_on_line = Geom::Point(0,0); - } - // update position in non-committing way - // fixme: perhaps we need to add an update method instead, and request_update here - this->moveto(this->point_on_line, false); - } - break; - default: - SPObject::set(key, value); - break; - } -} - -/* Only used internally and in sp-line.cpp */ -SPGuide *SPGuide::createSPGuide(SPDocument *doc, Geom::Point const &pt1, Geom::Point const &pt2) -{ - Inkscape::XML::Document *xml_doc = doc->getReprDoc(); - - Inkscape::XML::Node *repr = xml_doc->createElement("sodipodi:guide"); - - Geom::Point n = Geom::rot90(pt2 - pt1); - - // If root viewBox set, interpret guides in terms of viewBox (90/96) - double newx = pt1.x(); - double newy = pt1.y(); - - SPRoot *root = doc->getRoot(); - if( root->viewBox_set ) { - // check to see if scaling is uniform - if(Geom::are_near((root->viewBox.width() * root->height.computed) / (root->width.computed * root->viewBox.height()), 1.0, Geom::EPSILON)) { - double px2vbunit = (root->viewBox.width()/root->width.computed + root->viewBox.height()/root->height.computed)/2.0; - newx = newx * px2vbunit; - newy = newy * px2vbunit; - } else { - newx = newx * root->viewBox.width() / root->width.computed; - newy = newy * root->viewBox.height() / root->height.computed; - } - } - - sp_repr_set_point(repr, "position", Geom::Point( newx, newy )); - sp_repr_set_point(repr, "orientation", n); - - SPNamedView *namedview = sp_document_namedview(doc, NULL); - if (namedview) { - namedview->appendChild(repr); - } - Inkscape::GC::release(repr); - - SPGuide *guide= SP_GUIDE(doc->getObjectByRepr(repr)); - return guide; -} - -void sp_guide_pt_pairs_to_guides(SPDocument *doc, std::list<std::pair<Geom::Point, Geom::Point> > &pts) -{ - for (std::list<std::pair<Geom::Point, Geom::Point> >::iterator i = pts.begin(); i != pts.end(); ++i) { - SPGuide::createSPGuide(doc, (*i).first, (*i).second); - } -} - -void sp_guide_create_guides_around_page(SPDesktop *dt) -{ - SPDocument *doc=dt->getDocument(); - std::list<std::pair<Geom::Point, Geom::Point> > pts; - - Geom::Point A(0, 0); - Geom::Point C(doc->getWidth().value("px"), doc->getHeight().value("px")); - Geom::Point B(C[Geom::X], 0); - Geom::Point D(0, C[Geom::Y]); - - pts.push_back(std::pair<Geom::Point, Geom::Point>(A, B)); - pts.push_back(std::pair<Geom::Point, Geom::Point>(B, C)); - pts.push_back(std::pair<Geom::Point, Geom::Point>(C, D)); - pts.push_back(std::pair<Geom::Point, Geom::Point>(D, A)); - - sp_guide_pt_pairs_to_guides(doc, pts); - - DocumentUndo::done(doc, SP_VERB_NONE, _("Create Guides Around the Page")); -} - -void sp_guide_delete_all_guides(SPDesktop *dt) -{ - SPDocument *doc=dt->getDocument(); - std::vector<SPObject *> current = doc->getResourceList("guide"); - while (!current.empty()){ - SPGuide* guide = SP_GUIDE(*(current.begin())); - sp_guide_remove(guide); - current = doc->getResourceList("guide"); - } - - DocumentUndo::done(doc, SP_VERB_NONE, _("Delete All Guides")); -} - -void SPGuide::showSPGuide(SPCanvasGroup *group, GCallback handler) -{ - SPCanvasItem *item = sp_guideline_new(group, label, point_on_line, normal_to_line); - sp_guideline_set_color(SP_GUIDELINE(item), color); - sp_guideline_set_locked(SP_GUIDELINE(item), locked); - - g_signal_connect(G_OBJECT(item), "event", G_CALLBACK(handler), this); - - views.push_back(SP_GUIDELINE(item)); -} - -void SPGuide::showSPGuide() -{ - for(std::vector<SPGuideLine *>::const_iterator it = this->views.begin(); it != this->views.end(); ++it) { - sp_canvas_item_show(SP_CANVAS_ITEM(*it)); - if((*it)->origin) { - sp_canvas_item_show(SP_CANVAS_ITEM((*it)->origin)); - } else { - //reposition to same place to show knots - sp_guideline_set_position(*it, point_on_line); - } - } -} - -void SPGuide::hideSPGuide(SPCanvas *canvas) -{ - g_assert(canvas != NULL); - g_assert(SP_IS_CANVAS(canvas)); - for(std::vector<SPGuideLine *>::iterator it = this->views.begin(); it != this->views.end(); ++it) { - if (canvas == SP_CANVAS_ITEM(*it)->canvas) { - sp_guideline_delete(*it); - views.erase(it); - return; - } - } - - assert(false); -} - -void SPGuide::hideSPGuide() -{ - for(std::vector<SPGuideLine *>::const_iterator it = this->views.begin(); it != this->views.end(); ++it) { - sp_canvas_item_hide(SP_CANVAS_ITEM(*it)); - if ((*it)->origin) { - sp_canvas_item_hide(SP_CANVAS_ITEM((*it)->origin)); - } - } -} - -void SPGuide::sensitize(SPCanvas *canvas, bool sensitive) -{ - g_assert(canvas != NULL); - g_assert(SP_IS_CANVAS(canvas)); - - for(std::vector<SPGuideLine *>::const_iterator it = this->views.begin(); it != this->views.end(); ++it) { - if (canvas == SP_CANVAS_ITEM(*it)->canvas) { - sp_guideline_set_sensitive(*it, sensitive); - return; - } - } - - assert(false); -} - -Geom::Point SPGuide::getPositionFrom(Geom::Point const &pt) const -{ - return -(pt - point_on_line); -} - -double SPGuide::getDistanceFrom(Geom::Point const &pt) const -{ - return Geom::dot(pt - point_on_line, normal_to_line); -} - -/** - * \arg commit False indicates temporary moveto in response to motion event while dragging, - * true indicates a "committing" version: in response to button release event after - * dragging a guideline, or clicking OK in guide editing dialog. - */ -void SPGuide::moveto(Geom::Point const point_on_line, bool const commit) -{ - if(this->locked) { - return; - } - for(std::vector<SPGuideLine *>::const_iterator it = this->views.begin(); it != this->views.end(); ++it) { - sp_guideline_set_position(*it, point_on_line); - } - - /* Calling sp_repr_set_point must precede calling sp_item_notify_moveto in the commit - case, so that the guide's new position is available for sp_item_rm_unsatisfied_cns. */ - if (commit) { - // If root viewBox set, interpret guides in terms of viewBox (90/96) - double newx = point_on_line.x(); - double newy = point_on_line.y(); - - SPRoot *root = document->getRoot(); - if( root->viewBox_set ) { - // check to see if scaling is uniform - if(Geom::are_near((root->viewBox.width() * root->height.computed) / (root->width.computed * root->viewBox.height()), 1.0, Geom::EPSILON)) { - double px2vbunit = (root->viewBox.width()/root->width.computed + root->viewBox.height()/root->height.computed)/2.0; - newx = newx * px2vbunit; - newy = newy * px2vbunit; - } else { - newx = newx * root->viewBox.width() / root->width.computed; - newy = newy * root->viewBox.height() / root->height.computed; - } - } - - //XML Tree being used here directly while it shouldn't be. - sp_repr_set_point(getRepr(), "position", Geom::Point(newx, newy) ); - } - -/* DISABLED CODE BECAUSE SPGuideAttachment IS NOT USE AT THE MOMENT (johan) - for (vector<SPGuideAttachment>::const_iterator i(attached_items.begin()), - iEnd(attached_items.end()); - i != iEnd; ++i) - { - SPGuideAttachment const &att = *i; - sp_item_notify_moveto(*att.item, this, att.snappoint_ix, position, commit); - } -*/ -} - -/** - * \arg commit False indicates temporary moveto in response to motion event while dragging, - * true indicates a "committing" version: in response to button release event after - * dragging a guideline, or clicking OK in guide editing dialog. - */ -void SPGuide::set_normal(Geom::Point const normal_to_line, bool const commit) -{ - if(this->locked) { - return; - } - for(std::vector<SPGuideLine *>::const_iterator it = this->views.begin(); it != this->views.end(); ++it) { - sp_guideline_set_normal(*it, normal_to_line); - } - - /* Calling sp_repr_set_svg_point must precede calling sp_item_notify_moveto in the commit - case, so that the guide's new position is available for sp_item_rm_unsatisfied_cns. */ - if (commit) { - //XML Tree being used directly while it shouldn't be - sp_repr_set_point(getRepr(), "orientation", normal_to_line); - } - -/* DISABLED CODE BECAUSE SPGuideAttachment IS NOT USE AT THE MOMENT (johan) - for (vector<SPGuideAttachment>::const_iterator i(attached_items.begin()), - iEnd(attached_items.end()); - i != iEnd; ++i) - { - SPGuideAttachment const &att = *i; - sp_item_notify_moveto(*att.item, this, att.snappoint_ix, position, commit); - } -*/ -} - -void SPGuide::set_color(const unsigned r, const unsigned g, const unsigned b, bool const commit) -{ - this->color = (r << 24) | (g << 16) | (b << 8) | 0x7f; - - if (! views.empty()) { - sp_guideline_set_color(views[0], this->color); - } - - if (commit) { - std::ostringstream os; - os << "rgb(" << r << "," << g << "," << b << ")"; - //XML Tree being used directly while it shouldn't be - getRepr()->setAttribute("inkscape:color", os.str().c_str()); - } -} - -void SPGuide::set_locked(const bool locked, bool const commit) -{ - this->locked = locked; - if ( !views.empty() ) { - sp_guideline_set_locked(views[0], locked); - } - - if (commit) { - getRepr()->setAttribute("inkscape:locked", g_strdup(locked ? "true" : "false")); - } -} - -void SPGuide::set_label(const char* label, bool const commit) -{ - if (!views.empty()) { - sp_guideline_set_label(views[0], label); - } - - if (commit) { - //XML Tree being used directly while it shouldn't be - getRepr()->setAttribute("inkscape:label", label); - } -} - -/** - * Returns a human-readable description of the guideline for use in dialog boxes and status bar. - * If verbose is false, only positioning information is included (useful for dialogs). - * - * The caller is responsible for freeing the string. - */ -char* SPGuide::description(bool const verbose) const -{ - using Geom::X; - using Geom::Y; - - char *descr = NULL; - if ( !this->document ) { - // Guide has probably been deleted and no longer has an attached namedview. - descr = g_strdup(_("Deleted")); - } else { - SPNamedView *namedview = sp_document_namedview(this->document, NULL); - - Inkscape::Util::Quantity x_q = Inkscape::Util::Quantity(this->point_on_line[X], "px"); - Inkscape::Util::Quantity y_q = Inkscape::Util::Quantity(this->point_on_line[Y], "px"); - Glib::ustring position_string_x = x_q.string(namedview->display_units); - Glib::ustring position_string_y = y_q.string(namedview->display_units); - - gchar *shortcuts = g_strdup_printf("; %s", _("<b>Shift+drag</b> to rotate, <b>Ctrl+drag</b> to move origin, <b>Del</b> to delete")); - - if ( are_near(this->normal_to_line, Geom::Point(1., 0.)) || - are_near(this->normal_to_line, -Geom::Point(1., 0.)) ) { - descr = g_strdup_printf(_("vertical, at %s"), position_string_x.c_str()); - } else if ( are_near(this->normal_to_line, Geom::Point(0., 1.)) || - are_near(this->normal_to_line, -Geom::Point(0., 1.)) ) { - descr = g_strdup_printf(_("horizontal, at %s"), position_string_y.c_str()); - } else { - double const radians = this->angle(); - double const degrees = Geom::deg_from_rad(radians); - int const degrees_int = (int) round(degrees); - descr = g_strdup_printf(_("at %d degrees, through (%s,%s)"), - degrees_int, position_string_x.c_str(), position_string_y.c_str()); - } - - if (verbose) { - gchar *oldDescr = descr; - descr = g_strconcat(oldDescr, shortcuts, NULL); - g_free(oldDescr); - } - - g_free(shortcuts); - } - - return descr; -} - -void sp_guide_remove(SPGuide *guide) -{ - g_assert(SP_IS_GUIDE(guide)); - - for (vector<SPGuideAttachment>::const_iterator i(guide->attached_items.begin()), - iEnd(guide->attached_items.end()); - i != iEnd; ++i) - { - SPGuideAttachment const &att = *i; - remove_last(att.item->constraints, SPGuideConstraint(guide, att.snappoint_ix)); - } - guide->attached_items.clear(); - - //XML Tree being used directly while it shouldn't be. - sp_repr_unparent(guide->getRepr()); -} - -/* - 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 : |