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Diffstat (limited to 'src/ui/widget/stroke-style.cpp')
| -rw-r--r-- | src/ui/widget/stroke-style.cpp | 1232 |
1 files changed, 1232 insertions, 0 deletions
diff --git a/src/ui/widget/stroke-style.cpp b/src/ui/widget/stroke-style.cpp new file mode 100644 index 0000000..53b50dd --- /dev/null +++ b/src/ui/widget/stroke-style.cpp @@ -0,0 +1,1232 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* Authors: + * Lauris Kaplinski <lauris@kaplinski.com> + * Bryce Harrington <brycehar@bryceharrington.org> + * bulia byak <buliabyak@users.sf.net> + * Maximilian Albert <maximilian.albert@gmail.com> + * Josh Andler <scislac@users.sf.net> + * Jon A. Cruz <jon@joncruz.org> + * Abhishek Sharma + * + * Copyright (C) 2001-2005 authors + * Copyright (C) 2001 Ximian, Inc. + * Copyright (C) 2004 John Cliff + * Copyright (C) 2008 Maximilian Albert (gtkmm-ification) + * + * Released under GNU GPL v2+, read the file 'COPYING' for more information. + */ + +#define noSP_SS_VERBOSE + +#include "stroke-style.h" + +#include "object/sp-marker.h" +#include "object/sp-namedview.h" +#include "object/sp-rect.h" +#include "object/sp-stop.h" +#include "object/sp-text.h" + +#include "svg/svg-color.h" + +#include "ui/icon-loader.h" +#include "ui/widget/dash-selector.h" +#include "ui/widget/marker-combo-box.h" +#include "ui/widget/unit-menu.h" +#include "ui/tools/marker-tool.h" +#include "ui/dialog/dialog-base.h" + +#include "actions/actions-tools.h" + +#include "widgets/style-utils.h" + +using Inkscape::DocumentUndo; +using Inkscape::Util::unit_table; + +/** + * Extract the actual name of the link + * e.g. get mTriangle from url(#mTriangle). + * \return Buffer containing the actual name, allocated from GLib; + * the caller should free the buffer when they no longer need it. + */ +SPObject* getMarkerObj(gchar const *n, SPDocument *doc) +{ + gchar const *p = n; + while (*p != '\0' && *p != '#') { + p++; + } + + if (*p == '\0' || p[1] == '\0') { + return nullptr; + } + + p++; + int c = 0; + while (p[c] != '\0' && p[c] != ')') { + c++; + } + + if (p[c] == '\0') { + return nullptr; + } + + gchar* b = g_strdup(p); + b[c] = '\0'; + + // FIXME: get the document from the object and let the caller pass it in + SPObject *marker = doc->getObjectById(b); + + g_free(b); + return marker; +} + +namespace Inkscape { +namespace UI { +namespace Widget { + +/** + * Construct a stroke-style radio button with a given icon + * + * \param[in] grp The Gtk::RadioButtonGroup to which to add the new button + * \param[in] icon The icon to use for the button + * \param[in] button_type The type of stroke-style radio button (join/cap) + * \param[in] stroke_style The style attribute to associate with the button + */ +StrokeStyle::StrokeStyleButton::StrokeStyleButton(Gtk::RadioButtonGroup &grp, + char const *icon, + StrokeStyleButtonType button_type, + gchar const *stroke_style) + : + Gtk::RadioButton(grp), + button_type(button_type), + stroke_style(stroke_style) +{ + show(); + set_mode(false); + + auto px = Gtk::manage(sp_get_icon_image(icon, Gtk::ICON_SIZE_LARGE_TOOLBAR)); + g_assert(px != nullptr); + px->show(); + add(*px); +} + +std::vector<double> parse_pattern(const Glib::ustring& input) { + std::vector<double> output; + if (input.empty()) return output; + + std::istringstream stream(input.c_str()); + while (stream) { + double val; + stream >> val; + if (stream) { + output.push_back(val); + } + } + + return output; +} + +StrokeStyle::StrokeStyle() : + Gtk::Box(), + miterLimitSpin(), + widthSpin(), + unitSelector(), + joinMiter(), + joinRound(), + joinBevel(), + capButt(), + capRound(), + capSquare(), + dashSelector(), + update(false), + desktop(nullptr), + startMarkerConn(), + midMarkerConn(), + endMarkerConn(), + _old_unit(nullptr) +{ + set_name("StrokeSelector"); + table = Gtk::manage(new Gtk::Grid()); + table->set_border_width(4); + table->set_row_spacing(4); + table->set_hexpand(false); + table->set_halign(Gtk::ALIGN_CENTER); + table->show(); + add(*table); + + Gtk::Box *hb; + gint i = 0; + + //spw_label(t, C_("Stroke width", "_Width:"), 0, i); + + hb = spw_hbox(table, 3, 1, i); + +// TODO: when this is gtkmmified, use an Inkscape::UI::Widget::ScalarUnit instead of the separate +// spinbutton and unit selector for stroke width. In sp_stroke_style_line_update, use +// setHundredPercent to remember the averaged width corresponding to 100%. Then the +// stroke_width_set_unit will be removed (because ScalarUnit takes care of conversions itself) + widthAdj = new Glib::RefPtr<Gtk::Adjustment>(Gtk::Adjustment::create(1.0, 0.0, 1000.0, 0.1, 10.0, 0.0)); + widthSpin = new Inkscape::UI::Widget::SpinButton(*widthAdj, 0.1, 3); + widthSpin->set_tooltip_text(_("Stroke width")); + widthSpin->show(); + spw_label(table, C_("Stroke width", "_Width:"), 0, i, widthSpin); + + sp_dialog_defocus_on_enter_cpp(widthSpin); + + hb->pack_start(*widthSpin, false, false, 0); + unitSelector = Gtk::manage(new Inkscape::UI::Widget::UnitMenu()); + unitSelector->setUnitType(Inkscape::Util::UNIT_TYPE_LINEAR); + SPDesktop *desktop = SP_ACTIVE_DESKTOP; + + unitSelector->addUnit(*unit_table.getUnit("%")); + unitSelector->append("hairline", _("Hairline")); + _old_unit = unitSelector->getUnit(); + if (desktop) { + unitSelector->setUnit(desktop->getNamedView()->display_units->abbr); + _old_unit = desktop->getNamedView()->display_units; + } + widthSpin->setUnitMenu(unitSelector); + unitSelector->signal_changed().connect(sigc::mem_fun(*this, &StrokeStyle::unitChangedCB)); + unitSelector->show(); + + hb->pack_start(*unitSelector, FALSE, FALSE, 0); + (*widthAdj)->signal_value_changed().connect(sigc::mem_fun(*this, &StrokeStyle::setStrokeWidth)); + + i++; + + /* Dash */ + spw_label(table, _("Dashes:"), 0, i, nullptr); //no mnemonic for now + //decide what to do: + // implement a set_mnemonic_source function in the + // Inkscape::UI::Widget::DashSelector class, so that we do not have to + // expose any of the underlying widgets? + dashSelector = Gtk::manage(new Inkscape::UI::Widget::DashSelector); + _pattern = Gtk::make_managed<Gtk::Entry>(); + + dashSelector->show(); + dashSelector->set_hexpand(); + dashSelector->set_halign(Gtk::ALIGN_FILL); + dashSelector->set_valign(Gtk::ALIGN_CENTER); + table->attach(*dashSelector, 1, i, 3, 1); + dashSelector->changed_signal.connect(sigc::mem_fun(*this, &StrokeStyle::setStrokeDash)); + + i++; + + table->attach(*_pattern, 1, i, 4, 1); + _pattern_label = spw_label(table, _("_Pattern:"), 0, i, _pattern); + _pattern_label->set_tooltip_text(_("Repeating \"dash gap ...\" pattern")); + _pattern->set_no_show_all(); + _pattern_label->set_no_show_all(); + _pattern->signal_changed().connect([=](){ + if (update || _editing_pattern) return; + + auto pat = parse_pattern(_pattern->get_text()); + _editing_pattern = true; + update = true; + dashSelector->set_dash(pat, dashSelector->get_offset()); + update = false; + setStrokeDash(); + _editing_pattern = false; + }); + update_pattern(0, nullptr); + + i++; + + /* Drop down marker selectors*/ + // TRANSLATORS: Path markers are an SVG feature that allows you to attach arbitrary shapes + // (arrowheads, bullets, faces, whatever) to the start, end, or middle nodes of a path. + + spw_label(table, _("Markers:"), 0, i, nullptr); + + hb = spw_hbox(table, 1, 1, i); + i++; + + startMarkerCombo = Gtk::manage(new MarkerComboBox("marker-start", SP_MARKER_LOC_START)); + startMarkerCombo->set_tooltip_text(_("Start Markers are drawn on the first node of a path or shape")); + startMarkerConn = startMarkerCombo->signal_changed().connect([=]() { markerSelectCB(startMarkerCombo, SP_MARKER_LOC_START); }); + startMarkerCombo->edit_signal.connect([=] { enterEditMarkerMode(SP_MARKER_LOC_START); }); + startMarkerCombo->show(); + + hb->pack_start(*startMarkerCombo, true, true, 0); + + midMarkerCombo = Gtk::manage(new MarkerComboBox("marker-mid", SP_MARKER_LOC_MID)); + midMarkerCombo->set_tooltip_text(_("Mid Markers are drawn on every node of a path or shape except the first and last nodes")); + midMarkerConn = midMarkerCombo->signal_changed().connect([=]() { markerSelectCB(midMarkerCombo, SP_MARKER_LOC_MID); }); + midMarkerCombo->edit_signal.connect([=] { enterEditMarkerMode(SP_MARKER_LOC_MID); }); + midMarkerCombo->show(); + + hb->pack_start(*midMarkerCombo, true, true, 0); + + endMarkerCombo = Gtk::manage(new MarkerComboBox("marker-end", SP_MARKER_LOC_END)); + endMarkerCombo->set_tooltip_text(_("End Markers are drawn on the last node of a path or shape")); + endMarkerConn = endMarkerCombo->signal_changed().connect([=]() { markerSelectCB(endMarkerCombo, SP_MARKER_LOC_END); }); + endMarkerCombo->edit_signal.connect([=] { enterEditMarkerMode(SP_MARKER_LOC_END); }); + endMarkerCombo->show(); + + hb->pack_start(*endMarkerCombo, true, true, 0); + i++; + + /* Join type */ + // TRANSLATORS: The line join style specifies the shape to be used at the + // corners of paths. It can be "miter", "round" or "bevel". + spw_label(table, _("Join:"), 0, i, nullptr); + + hb = spw_hbox(table, 3, 1, i); + + Gtk::RadioButtonGroup joinGrp; + + joinBevel = makeRadioButton(joinGrp, INKSCAPE_ICON("stroke-join-bevel"), + hb, STROKE_STYLE_BUTTON_JOIN, "bevel"); + + // TRANSLATORS: Bevel join: joining lines with a blunted (flattened) corner. + // For an example, draw a triangle with a large stroke width and modify the + // "Join" option (in the Fill and Stroke dialog). + joinBevel->set_tooltip_text(_("Bevel join")); + + joinRound = makeRadioButton(joinGrp, INKSCAPE_ICON("stroke-join-round"), + hb, STROKE_STYLE_BUTTON_JOIN, "round"); + + // TRANSLATORS: Round join: joining lines with a rounded corner. + // For an example, draw a triangle with a large stroke width and modify the + // "Join" option (in the Fill and Stroke dialog). + joinRound->set_tooltip_text(_("Round join")); + + joinMiter = makeRadioButton(joinGrp, INKSCAPE_ICON("stroke-join-miter"), + hb, STROKE_STYLE_BUTTON_JOIN, "miter"); + + // TRANSLATORS: Miter join: joining lines with a sharp (pointed) corner. + // For an example, draw a triangle with a large stroke width and modify the + // "Join" option (in the Fill and Stroke dialog). + joinMiter->set_tooltip_text(_("Miter join")); + + /* Miterlimit */ + // TRANSLATORS: Miter limit: only for "miter join", this limits the length + // of the sharp "spike" when the lines connect at too sharp an angle. + // When two line segments meet at a sharp angle, a miter join results in a + // spike that extends well beyond the connection point. The purpose of the + // miter limit is to cut off such spikes (i.e. convert them into bevels) + // when they become too long. + //spw_label(t, _("Miter _limit:"), 0, i); + miterLimitAdj = new Glib::RefPtr<Gtk::Adjustment>(Gtk::Adjustment::create(4.0, 0.0, 100000.0, 0.1, 10.0, 0.0)); + miterLimitSpin = new Inkscape::UI::Widget::SpinButton(*miterLimitAdj, 0.1, 2); + miterLimitSpin->set_tooltip_text(_("Maximum length of the miter (in units of stroke width)")); + miterLimitSpin->set_width_chars(6); + miterLimitSpin->show(); + sp_dialog_defocus_on_enter_cpp(miterLimitSpin); + + hb->pack_start(*miterLimitSpin, false, false, 0); + (*miterLimitAdj)->signal_value_changed().connect(sigc::mem_fun(*this, &StrokeStyle::setStrokeMiter)); + i++; + + /* Cap type */ + // TRANSLATORS: cap type specifies the shape for the ends of lines + //spw_label(t, _("_Cap:"), 0, i); + spw_label(table, _("Cap:"), 0, i, nullptr); + + hb = spw_hbox(table, 3, 1, i); + + Gtk::RadioButtonGroup capGrp; + + capButt = makeRadioButton(capGrp, INKSCAPE_ICON("stroke-cap-butt"), + hb, STROKE_STYLE_BUTTON_CAP, "butt"); + + // TRANSLATORS: Butt cap: the line shape does not extend beyond the end point + // of the line; the ends of the line are square + capButt->set_tooltip_text(_("Butt cap")); + + capRound = makeRadioButton(capGrp, INKSCAPE_ICON("stroke-cap-round"), + hb, STROKE_STYLE_BUTTON_CAP, "round"); + + // TRANSLATORS: Round cap: the line shape extends beyond the end point of the + // line; the ends of the line are rounded + capRound->set_tooltip_text(_("Round cap")); + + capSquare = makeRadioButton(capGrp, INKSCAPE_ICON("stroke-cap-square"), + hb, STROKE_STYLE_BUTTON_CAP, "square"); + + // TRANSLATORS: Square cap: the line shape extends beyond the end point of the + // line; the ends of the line are square + capSquare->set_tooltip_text(_("Square cap")); + + i++; + + /* Paint order */ + // TRANSLATORS: Paint order determines the order the 'fill', 'stroke', and 'markers are painted. + spw_label(table, _("Order:"), 0, i, nullptr); + + hb = spw_hbox(table, 4, 1, i); + + Gtk::RadioButtonGroup paintOrderGrp; + + paintOrderFSM = makeRadioButton(paintOrderGrp, INKSCAPE_ICON("paint-order-fsm"), + hb, STROKE_STYLE_BUTTON_ORDER, "normal"); + paintOrderFSM->set_tooltip_text(_("Fill, Stroke, Markers")); + + paintOrderSFM = makeRadioButton(paintOrderGrp, INKSCAPE_ICON("paint-order-sfm"), + hb, STROKE_STYLE_BUTTON_ORDER, "stroke fill markers"); + paintOrderSFM->set_tooltip_text(_("Stroke, Fill, Markers")); + + paintOrderFMS = makeRadioButton(paintOrderGrp, INKSCAPE_ICON("paint-order-fms"), + hb, STROKE_STYLE_BUTTON_ORDER, "fill markers stroke"); + paintOrderFMS->set_tooltip_text(_("Fill, Markers, Stroke")); + + i++; + + hb = spw_hbox(table, 4, 1, i); + + paintOrderMFS = makeRadioButton(paintOrderGrp, INKSCAPE_ICON("paint-order-mfs"), + hb, STROKE_STYLE_BUTTON_ORDER, "markers fill stroke"); + paintOrderMFS->set_tooltip_text(_("Markers, Fill, Stroke")); + + paintOrderSMF = makeRadioButton(paintOrderGrp, INKSCAPE_ICON("paint-order-smf"), + hb, STROKE_STYLE_BUTTON_ORDER, "stroke markers fill"); + paintOrderSMF->set_tooltip_text(_("Stroke, Markers, Fill")); + + paintOrderMSF = makeRadioButton(paintOrderGrp, INKSCAPE_ICON("paint-order-msf"), + hb, STROKE_STYLE_BUTTON_ORDER, "markers stroke fill"); + paintOrderMSF->set_tooltip_text(_("Markers, Stroke, Fill")); + + i++; +} + +StrokeStyle::~StrokeStyle() +{ +} + +void StrokeStyle::setDesktop(SPDesktop *desktop) +{ + if (this->desktop != desktop) { + + if (this->desktop) { + _document_replaced_connection.disconnect(); + } + this->desktop = desktop; + + if (!desktop) { + return; + } + + _document_replaced_connection = + desktop->connectDocumentReplaced(sigc::mem_fun(this, &StrokeStyle::_handleDocumentReplaced)); + + _handleDocumentReplaced(nullptr, desktop->getDocument()); + + updateLine(); + } +} + +void StrokeStyle::_handleDocumentReplaced(SPDesktop *, SPDocument *document) +{ + for (MarkerComboBox *combo : { startMarkerCombo, midMarkerCombo, endMarkerCombo }) { + combo->setDocument(document); + } +} + + +/** + * Helper function for creating stroke-style radio buttons. + * + * \param[in] grp The Gtk::RadioButtonGroup in which to add the button + * \param[in] icon The icon for the button + * \param[in] hb The Gtk::Box container in which to add the button + * \param[in] button_type The type (join/cap) for the button + * \param[in] stroke_style The style attribute to associate with the button + * + * \details After instantiating the button, it is added to a container box and + * a handler for the toggle event is connected. + */ +StrokeStyle::StrokeStyleButton * +StrokeStyle::makeRadioButton(Gtk::RadioButtonGroup &grp, + char const *icon, + Gtk::Box *hb, + StrokeStyleButtonType button_type, + gchar const *stroke_style) +{ + g_assert(icon != nullptr); + g_assert(hb != nullptr); + + StrokeStyleButton *tb = new StrokeStyleButton(grp, icon, button_type, stroke_style); + + hb->pack_start(*tb, false, false, 0); + + tb->signal_toggled().connect(sigc::bind<StrokeStyleButton *, StrokeStyle *>( + sigc::ptr_fun(&StrokeStyle::buttonToggledCB), tb, this)); + + return tb; +} + +void StrokeStyle::enterEditMarkerMode(SPMarkerLoc _editMarkerMode) +{ + SPDesktop *desktop = this->desktop; + + if (desktop) { + set_active_tool(desktop, "Marker"); + Inkscape::UI::Tools::MarkerTool *mt = dynamic_cast<Inkscape::UI::Tools::MarkerTool*>(desktop->event_context); + + if(mt) { + mt->editMarkerMode = _editMarkerMode; + mt->selection_changed(desktop->getSelection()); + } + } +} + + +bool StrokeStyle::areMarkersBeingUpdated() +{ + return startMarkerCombo->in_update() || midMarkerCombo->in_update() || endMarkerCombo->in_update(); +} + +/** + * Handles when user selects one of the markers from the marker combobox. + * Gets the marker uri string and applies it to all selected + * items in the current desktop. + */ +void StrokeStyle::markerSelectCB(MarkerComboBox *marker_combo, SPMarkerLoc const which) +{ + if (update || areMarkersBeingUpdated()) { + return; + } + + SPDocument *document = desktop->getDocument(); + if (!document) { + return; + } + + // Get marker ID; could be empty (to remove marker) + std::string marker = marker_combo->get_active_marker_uri(); + + update = true; + + SPCSSAttr *css = sp_repr_css_attr_new(); + gchar const *combo_id = marker_combo->get_id(); + sp_repr_css_set_property(css, combo_id, marker.c_str()); + + Inkscape::Selection *selection = desktop->getSelection(); + auto itemlist= selection->items(); + for(auto i=itemlist.begin();i!=itemlist.end();++i){ + SPItem *item = *i; + if (!SP_IS_SHAPE(item)) { + continue; + } + Inkscape::XML::Node *selrepr = item->getRepr(); + if (selrepr) { + sp_repr_css_change_recursive(selrepr, css, "style"); + } + + item->requestModified(SP_OBJECT_MODIFIED_FLAG); + item->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG); + + DocumentUndo::done(document, _("Set markers"), INKSCAPE_ICON("dialog-fill-and-stroke")); + } + + /* edit marker mode - update */ + SPDesktop *desktop = SP_ACTIVE_DESKTOP; + + if (desktop) { + Inkscape::UI::Tools::MarkerTool *mt = dynamic_cast<Inkscape::UI::Tools::MarkerTool*>(desktop->event_context); + + if(mt) { + mt->editMarkerMode = which; + mt->selection_changed(desktop->getSelection()); + } + } + + sp_repr_css_attr_unref(css); + css = nullptr; + + update = false; +}; + +/** + * Callback for when UnitMenu widget is modified. + * Triggers update action. + */ +void StrokeStyle::unitChangedCB() +{ + Inkscape::Util::Unit const *new_unit = unitSelector->getUnit(); + + if (_old_unit == new_unit) + return; + + // If the unit selector is set to hairline, don't do the normal conversion. + if (isHairlineSelected()) { + // Force update in setStrokeWidth + _old_unit = new_unit; + _last_width = -1; + setStrokeWidth(); + return; + } + + if (new_unit->type == Inkscape::Util::UNIT_TYPE_DIMENSIONLESS) { + // Prevent update in setStrokeWidth + _last_width = 100.0; + widthSpin->set_value(100); + } else { + // Remove the non-scaling-stroke effect and the hairline extensions + if (!update) { + SPCSSAttr *css = sp_repr_css_attr_new(); + sp_repr_css_unset_property(css, "vector-effect"); + sp_repr_css_unset_property(css, "-inkscape-stroke"); + sp_desktop_set_style(desktop, css); + sp_repr_css_attr_unref(css); + css = nullptr; + DocumentUndo::done(desktop->getDocument(), _("Remove hairline stroke"), + INKSCAPE_ICON("dialog-fill-and-stroke")); + } + if (_old_unit->type == Inkscape::Util::UNIT_TYPE_DIMENSIONLESS) { + // Prevent update of unit (inf-loop) in updateLine + _old_unit = new_unit; + // Going from % to any other unit means our widthSpin is completely invalid. + updateLine(); + } else { + // Scale the value and record the old_unit + widthSpin->set_value(Inkscape::Util::Quantity::convert(widthSpin->get_value(), _old_unit, new_unit)); + } + } + _old_unit = new_unit; +} + +/** + * Callback for when stroke style widget is modified. + * Triggers update action. + */ +void +StrokeStyle::selectionModifiedCB(guint flags) +{ + // We care deeply about only updating when the style is updated + // if we update on other flags, we slow inkscape down when dragging + if (flags & (SP_OBJECT_STYLE_MODIFIED_FLAG)) { + updateLine(); + } +} + +/** + * Callback for when stroke style widget is changed. + * Triggers update action. + */ +void +StrokeStyle::selectionChangedCB() +{ + updateLine(); +} + +/** + * Get a dash array and offset from the style. + * + * Both values are de-scaled by the style's width if needed. + */ +std::vector<double> +StrokeStyle::getDashFromStyle(SPStyle *style, double &offset) +{ + auto prefs = Inkscape::Preferences::get(); + + std::vector<double> ret; + size_t len = style->stroke_dasharray.values.size(); + + double scaledash = 1.0; + if (prefs->getBool("/options/dash/scale", true) && style->stroke_width.computed) { + scaledash = style->stroke_width.computed; + } + + offset = style->stroke_dashoffset.value / scaledash; + for (unsigned i = 0; i < len; i++) { + ret.push_back(style->stroke_dasharray.values[i].value / scaledash); + } + return ret; +} + +/** + * Sets selector widgets' dash style from an SPStyle object. + */ +void +StrokeStyle::setDashSelectorFromStyle(Inkscape::UI::Widget::DashSelector *dsel, SPStyle *style) +{ + double offset = 0; + auto d = getDashFromStyle(style, offset); + if (!d.empty()) { + dsel->set_dash(d, offset); + update_pattern(d.size(), d.data()); + } else { + dsel->set_dash(std::vector<double>(), 0.0); + update_pattern(0, nullptr); + } +} + +void StrokeStyle::update_pattern(int ndash, const double* pattern) { + if (_editing_pattern || _pattern->has_focus()) return; + + std::ostringstream ost; + for (int i = 0; i < ndash; ++i) { + ost << pattern[i] << ' '; + } + _pattern->set_text(ost.str().c_str()); + if (ndash > 0) { + _pattern_label->show(); + _pattern->show(); + } + else { + _pattern_label->hide(); + _pattern->hide(); + } +} + +/** + * Sets the join type for a line, and updates the stroke style widget's buttons + */ +void +StrokeStyle::setJoinType (unsigned const jointype) +{ + Gtk::RadioButton *tb = nullptr; + switch (jointype) { + case SP_STROKE_LINEJOIN_MITER: + tb = joinMiter; + break; + case SP_STROKE_LINEJOIN_ROUND: + tb = joinRound; + break; + case SP_STROKE_LINEJOIN_BEVEL: + tb = joinBevel; + break; + default: + // Should not happen + std::cerr << "StrokeStyle::setJoinType(): Invalid value: " << jointype << std::endl; + tb = joinMiter; + break; + } + setJoinButtons(tb); +} + +/** + * Sets the cap type for a line, and updates the stroke style widget's buttons + */ +void +StrokeStyle::setCapType (unsigned const captype) +{ + Gtk::RadioButton *tb = nullptr; + switch (captype) { + case SP_STROKE_LINECAP_BUTT: + tb = capButt; + break; + case SP_STROKE_LINECAP_ROUND: + tb = capRound; + break; + case SP_STROKE_LINECAP_SQUARE: + tb = capSquare; + break; + default: + // Should not happen + std::cerr << "StrokeStyle::setCapType(): Invalid value: " << captype << std::endl; + tb = capButt; + break; + } + setCapButtons(tb); +} + +/** + * Sets the cap type for a line, and updates the stroke style widget's buttons + */ +void +StrokeStyle::setPaintOrder (gchar const *paint_order) +{ + Gtk::RadioButton *tb = paintOrderFSM; + + SPIPaintOrder temp; + temp.read( paint_order ); + + if (temp.layer[0] != SP_CSS_PAINT_ORDER_NORMAL) { + + if (temp.layer[0] == SP_CSS_PAINT_ORDER_FILL) { + if (temp.layer[1] == SP_CSS_PAINT_ORDER_STROKE) { + tb = paintOrderFSM; + } else { + tb = paintOrderFMS; + } + } else if (temp.layer[0] == SP_CSS_PAINT_ORDER_STROKE) { + if (temp.layer[1] == SP_CSS_PAINT_ORDER_FILL) { + tb = paintOrderSFM; + } else { + tb = paintOrderSMF; + } + } else { + if (temp.layer[1] == SP_CSS_PAINT_ORDER_STROKE) { + tb = paintOrderMSF; + } else { + tb = paintOrderMFS; + } + } + + } + setPaintOrderButtons(tb); +} + +/** + * Callback for when stroke style widget is updated, including markers, cap type, + * join type, etc. + */ +void +StrokeStyle::updateLine() +{ + if (update) { + return; + } + + auto *widg = get_parent()->get_parent()->get_parent()->get_parent(); + auto dialogbase = dynamic_cast<Inkscape::UI::Dialog::DialogBase*>(widg); + if (dialogbase && !dialogbase->getShowing()) { + return; + } + + update = true; + + Inkscape::Selection *sel = desktop ? desktop->getSelection() : nullptr; + + if (!sel || sel->isEmpty()) { + // Nothing selected, grey-out all controls in the stroke-style dialog + table->set_sensitive(false); + + update = false; + + return; + } + + FillOrStroke kind = STROKE; + + // create temporary style + SPStyle query(SP_ACTIVE_DOCUMENT); + // query into it + int result_sw = sp_desktop_query_style(desktop, &query, QUERY_STYLE_PROPERTY_STROKEWIDTH); + int result_ml = sp_desktop_query_style(desktop, &query, QUERY_STYLE_PROPERTY_STROKEMITERLIMIT); + int result_cap = sp_desktop_query_style(desktop, &query, QUERY_STYLE_PROPERTY_STROKECAP); + int result_join = sp_desktop_query_style(desktop, &query, QUERY_STYLE_PROPERTY_STROKEJOIN); + int result_order = sp_desktop_query_style(desktop, &query, QUERY_STYLE_PROPERTY_PAINTORDER); + + SPIPaint &targPaint = *query.getFillOrStroke(kind == FILL); + + { + table->set_sensitive(true); + widthSpin->set_sensitive(true); + + if (result_sw == QUERY_STYLE_MULTIPLE_AVERAGED) { + unitSelector->setUnit("%"); + } else if (query.stroke_extensions.hairline) { + unitSelector->set_active_id("hairline"); + } else { + // same width, or only one object; no sense to keep percent, switch to absolute + Inkscape::Util::Unit const *tempunit = unitSelector->getUnit(); + if (tempunit->type != Inkscape::Util::UNIT_TYPE_LINEAR) { + unitSelector->setUnit(desktop->getNamedView()->display_units->abbr); + } + } + + Inkscape::Util::Unit const *unit = unitSelector->getUnit(); + + if (query.stroke_extensions.hairline) { + widthSpin->set_sensitive(false); + (*widthAdj)->set_value(1); + } else if (unit->type == Inkscape::Util::UNIT_TYPE_LINEAR) { + double avgwidth = Inkscape::Util::Quantity::convert(query.stroke_width.computed, "px", unit); + (*widthAdj)->set_value(avgwidth); + } else { + (*widthAdj)->set_value(100); + } + + // if none of the selected objects has a stroke, than quite some controls should be disabled + // These options should also be disabled for hairlines, since they don't make sense for + // 0-width lines. + // The markers might still be shown though, so marker and stroke-width widgets stay enabled + bool is_enabled = (result_sw != QUERY_STYLE_NOTHING) && !targPaint.isNoneSet() + && !query.stroke_extensions.hairline; + joinMiter->set_sensitive(is_enabled); + joinRound->set_sensitive(is_enabled); + joinBevel->set_sensitive(is_enabled); + + miterLimitSpin->set_sensitive(is_enabled); + + capButt->set_sensitive(is_enabled); + capRound->set_sensitive(is_enabled); + capSquare->set_sensitive(is_enabled); + + dashSelector->set_sensitive(is_enabled); + _pattern->set_sensitive(is_enabled); + } + + if (result_ml != QUERY_STYLE_NOTHING) + (*miterLimitAdj)->set_value(query.stroke_miterlimit.value); // TODO: reflect averagedness? + + using Inkscape::is_query_style_updateable; + if (! is_query_style_updateable(result_join)) { + setJoinType(query.stroke_linejoin.value); + } else { + setJoinButtons(nullptr); + } + + if (! is_query_style_updateable(result_cap)) { + setCapType (query.stroke_linecap.value); + } else { + setCapButtons(nullptr); + } + + if (! is_query_style_updateable(result_order)) { + setPaintOrder (query.paint_order.value); + } else { + setPaintOrder (nullptr); + } + + std::vector<SPItem*> const objects(sel->items().begin(), sel->items().end()); + if (objects.size()) { + SPObject *const object = objects[0]; + SPStyle *const style = object->style; + /* Markers */ + updateAllMarkers(objects, true); // FIXME: make this desktop query too + + /* Dash */ + setDashSelectorFromStyle(dashSelector, style); // FIXME: make this desktop query too + } + table->set_sensitive(true); + + update = false; +} + +/** + * Sets a line's dash properties in a CSS style object. + */ +void +StrokeStyle::setScaledDash(SPCSSAttr *css, + int ndash, const double *dash, double offset, + double scale) +{ + if (ndash > 0) { + Inkscape::CSSOStringStream osarray; + for (int i = 0; i < ndash; i++) { + osarray << dash[i] * scale; + if (i < (ndash - 1)) { + osarray << ","; + } + } + sp_repr_css_set_property(css, "stroke-dasharray", osarray.str().c_str()); + + Inkscape::CSSOStringStream osoffset; + osoffset << offset * scale; + sp_repr_css_set_property(css, "stroke-dashoffset", osoffset.str().c_str()); + } else { + sp_repr_css_set_property(css, "stroke-dasharray", "none"); + sp_repr_css_set_property(css, "stroke-dashoffset", nullptr); + } +} + +static inline double calcScaleLineWidth(const double width_typed, SPItem *const item, Inkscape::Util::Unit const *const unit) +{ + if (unit->abbr == "%") { + auto scale = item->i2doc_affine().descrim();; + const gdouble old_w = item->style->stroke_width.computed; + return (old_w * width_typed / 100) * scale; + } else if (unit->type == Inkscape::Util::UNIT_TYPE_LINEAR) { + return Inkscape::Util::Quantity::convert(width_typed, unit, "px"); + } + return width_typed; +} + +/** + * Set the stroke width and adjust the dash pattern if needed. + */ +void StrokeStyle::setStrokeWidth() +{ + double width_typed = (*widthAdj)->get_value(); + + // Don't change the selection if an update is happening, + // but also store the value for later comparison. + if (update || fabs(_last_width - width_typed) < 1E-6) { + _last_width = width_typed; + return; + } + update = true; + + auto prefs = Inkscape::Preferences::get(); + auto unit = unitSelector->getUnit(); + + SPCSSAttr *css = sp_repr_css_attr_new(); + if (isHairlineSelected()) { + /* For renderers that don't understand -inkscape-stroke:hairline, fall back to 1px non-scaling */ + width_typed = 1; + sp_repr_css_set_property(css, "vector-effect", "non-scaling-stroke"); + sp_repr_css_set_property(css, "-inkscape-stroke", "hairline"); + } else { + sp_repr_css_unset_property(css, "vector-effect"); + sp_repr_css_unset_property(css, "-inkscape-stroke"); + } + + for (auto item : desktop->getSelection()->items()) { + const double width = calcScaleLineWidth(width_typed, item, unit); + sp_repr_css_set_property_double(css, "stroke-width", width); + + if (prefs->getBool("/options/dash/scale", true)) { + // This will read the old stroke-width to un-scale the pattern. + double offset = 0; + auto dash = getDashFromStyle(item->style, offset); + setScaledDash(css, dash.size(), dash.data(), offset, width); + } + sp_desktop_apply_css_recursive (item, css, true); + } + sp_desktop_set_style (desktop, css, false); + + sp_repr_css_attr_unref(css); + DocumentUndo::done(desktop->getDocument(), _("Set stroke width"), + INKSCAPE_ICON("dialog-fill-and-stroke")); + + if (unit->abbr == "%") { + // reset to 100 percent + _last_width = 100.0; + (*widthAdj)->set_value(100.0); + } else { + _last_width = width_typed; + } + update = false; +} + +/** + * Set the stroke dash pattern, scale to the existing width if needed + */ +void StrokeStyle::setStrokeDash() +{ + if (update) return; + update = true; + + auto document = desktop->getDocument(); + auto prefs = Inkscape::Preferences::get(); + + double offset = 0; + const auto& dash = dashSelector->get_dash(&offset); + update_pattern(dash.size(), dash.data()); + + SPCSSAttr *css = sp_repr_css_attr_new(); + for (auto item : desktop->getSelection()->items()) { + double scale = item->i2doc_affine().descrim(); + if(prefs->getBool("/options/dash/scale", true)) { + scale = item->style->stroke_width.computed * scale; + } + + setScaledDash(css, dash.size(), dash.data(), offset, scale); + sp_desktop_apply_css_recursive (item, css, true); + } + sp_desktop_set_style (desktop, css, false); + + sp_repr_css_attr_unref(css); + DocumentUndo::done(document, _("Set stroke dash"), + INKSCAPE_ICON("dialog-fill-and-stroke")); + update = false; +} + +/** + * Set the Miter Limit value only. + */ +void StrokeStyle::setStrokeMiter() +{ + if (update) return; + update = true; + + SPCSSAttr *css = sp_repr_css_attr_new(); + auto value = (*miterLimitAdj)->get_value(); + sp_repr_css_set_property_double(css, "stroke-miterlimit", value); + + for (auto item : desktop->getSelection()->items()) { + sp_desktop_apply_css_recursive(item, css, true); + } + sp_desktop_set_style (desktop, css, false); + sp_repr_css_attr_unref(css); + DocumentUndo::done(desktop->getDocument(), _("Set stroke miter"), + INKSCAPE_ICON("dialog-fill-and-stroke")); + update = false; +} + +/** + * Returns whether the currently selected stroke width is "hairline" + * + */ +bool +StrokeStyle::isHairlineSelected() const +{ + return unitSelector->get_active_id() == "hairline"; +} + + +/** + * This routine handles toggle events for buttons in the stroke style dialog. + * + * When activated, this routine gets the data for the various widgets, and then + * calls the respective routines to update css properties, etc. + * + */ +void StrokeStyle::buttonToggledCB(StrokeStyleButton *tb, StrokeStyle *spw) +{ + if (spw->update) { + return; + } + + if (tb->get_active()) { + if (tb->get_button_type() == STROKE_STYLE_BUTTON_JOIN) { + spw->miterLimitSpin->set_sensitive(!strcmp(tb->get_stroke_style(), "miter")); + } + + /* TODO: Create some standardized method */ + SPCSSAttr *css = sp_repr_css_attr_new(); + + switch (tb->get_button_type()) { + case STROKE_STYLE_BUTTON_JOIN: + sp_repr_css_set_property(css, "stroke-linejoin", tb->get_stroke_style()); + sp_desktop_set_style (spw->desktop, css); + spw->setJoinButtons(tb); + break; + case STROKE_STYLE_BUTTON_CAP: + sp_repr_css_set_property(css, "stroke-linecap", tb->get_stroke_style()); + sp_desktop_set_style (spw->desktop, css); + spw->setCapButtons(tb); + break; + case STROKE_STYLE_BUTTON_ORDER: + sp_repr_css_set_property(css, "paint-order", tb->get_stroke_style()); + sp_desktop_set_style (spw->desktop, css); + //spw->setPaintButtons(tb); + } + + sp_repr_css_attr_unref(css); + css = nullptr; + + DocumentUndo::done(spw->desktop->getDocument(), _("Set stroke style"), INKSCAPE_ICON("dialog-fill-and-stroke")); + } +} + +/** + * Updates the join style toggle buttons + */ +void +StrokeStyle::setJoinButtons(Gtk::ToggleButton *active) +{ + joinMiter->set_active(active == joinMiter); + miterLimitSpin->set_sensitive(active == joinMiter && !isHairlineSelected()); + joinRound->set_active(active == joinRound); + joinBevel->set_active(active == joinBevel); +} + +/** + * Updates the cap style toggle buttons + */ +void +StrokeStyle::setCapButtons(Gtk::ToggleButton *active) +{ + capButt->set_active(active == capButt); + capRound->set_active(active == capRound); + capSquare->set_active(active == capSquare); +} + + +/** + * Updates the paint order style toggle buttons + */ +void +StrokeStyle::setPaintOrderButtons(Gtk::ToggleButton *active) +{ + paintOrderFSM->set_active(active == paintOrderFSM); + paintOrderSFM->set_active(active == paintOrderSFM); + paintOrderFMS->set_active(active == paintOrderFMS); + paintOrderMFS->set_active(active == paintOrderMFS); + paintOrderSMF->set_active(active == paintOrderSMF); + paintOrderMSF->set_active(active == paintOrderMSF); +} + + +/** + * Recursively builds a simple list from an arbitrarily complex selection + * of items and grouped items + */ +static void buildGroupedItemList(SPObject *element, std::vector<SPObject*> &simple_list) +{ + if (SP_IS_GROUP(element)) { + for (SPObject *i = element->firstChild(); i; i = i->getNext()) { + buildGroupedItemList(i, simple_list); + } + } else { + simple_list.push_back(element); + } +} + + +/** + * Updates the marker combobox to highlight the appropriate marker and scroll to + * that marker. + */ +void +StrokeStyle::updateAllMarkers(std::vector<SPItem*> const &objects, bool skip_undo) +{ + struct { MarkerComboBox *key; int loc; } const keyloc[] = { + { startMarkerCombo, SP_MARKER_LOC_START }, + { midMarkerCombo, SP_MARKER_LOC_MID }, + { endMarkerCombo, SP_MARKER_LOC_END } + }; + + bool all_texts = true; + + auto simplified_list = std::vector<SPObject *>(); + for (SPItem *item : objects) { + buildGroupedItemList(item, simplified_list); + } + + for (SPObject *object : simplified_list) { + if (!SP_IS_TEXT(object)) { + all_texts = false; + break; + } + } + + // We show markers of the last object in the list only + // FIXME: use the first in the list that has the marker of each type, if any + + for (auto const &markertype : keyloc) { + // For all three marker types, + + // find the corresponding combobox item + MarkerComboBox *combo = markertype.key; + + // Quit if we're in update state + if (combo->in_update()) { + return; + } + + // Per SVG spec, text objects cannot have markers; disable combobox if only texts are selected + // They should also be disabled for hairlines, since scaling against a 0-width line doesn't + // make sense. + combo->set_sensitive(!all_texts && !isHairlineSelected()); + + SPObject *marker = nullptr; + + if (!all_texts && !isHairlineSelected()) { + for (SPObject *object : simplified_list) { + char const *value = object->style->marker_ptrs[markertype.loc]->value(); + + // If the object has this type of markers, + if (value == nullptr) + continue; + + // Extract the name of the marker that the object uses + marker = getMarkerObj(value, object->document); + } + } + + // Scroll the combobox to that marker + combo->set_current(marker); + } + +} + +} // namespace Widget +} // namespace UI +} // namespace Inkscape + + +/* + 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 : |