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Diffstat (limited to 'src/widgets/stroke-style.cpp')
| -rw-r--r-- | src/widgets/stroke-style.cpp | 1346 |
1 files changed, 1346 insertions, 0 deletions
diff --git a/src/widgets/stroke-style.cpp b/src/widgets/stroke-style.cpp new file mode 100644 index 0000000..f2fe0e1 --- /dev/null +++ b/src/widgets/stroke-style.cpp @@ -0,0 +1,1346 @@ +// 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 "desktop-widget.h" +#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/unit-menu.h" + +#include "widgets/style-utils.h" + +using Inkscape::DocumentUndo; +using Inkscape::Util::unit_table; + +/** + * Creates a new widget for the line stroke paint. + */ +Gtk::Widget *sp_stroke_style_paint_widget_new() +{ + return Inkscape::Widgets::createStyleWidget( STROKE ); +} + +/** + * Creates a new widget for the line stroke style. + */ +Gtk::Widget *sp_stroke_style_line_widget_new() +{ + return Inkscape::Widgets::createStrokeStyleWidget(); +} + +void sp_stroke_style_widget_set_desktop(Gtk::Widget *widget, SPDesktop *desktop) +{ + Inkscape::StrokeStyle *ss = dynamic_cast<Inkscape::StrokeStyle*>(widget); + if (ss) { + ss->setDesktop(desktop); + } +} + + +/** + * 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 { + + +/** + * 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); +} + +/** + * Create the fill or stroke style widget, and hook up all the signals. + */ +Gtk::Widget *Inkscape::Widgets::createStrokeStyleWidget( ) +{ + StrokeStyle *strokeStyle = new StrokeStyle(); + + return strokeStyle; +} + +StrokeStyle::StrokeStyle() : + Gtk::Box(), + miterLimitSpin(), + widthSpin(), + unitSelector(), + joinMiter(), + joinRound(), + joinBevel(), + capButt(), + capRound(), + capSquare(), + dashSelector(), + update(false), + desktop(nullptr), + selectChangedConn(), + selectModifiedConn(), + startMarkerConn(), + midMarkerConn(), + endMarkerConn(), + _old_unit(nullptr) +{ + table = 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::HBox *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), and +// with it, the two remaining calls of stroke_average_width, allowing us to get rid of that +// function in desktop-style. + 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 = new Inkscape::UI::Widget::UnitMenu(); + unitSelector->setUnitType(Inkscape::Util::UNIT_TYPE_LINEAR); + Gtk::Widget *us = Gtk::manage(unitSelector); + SPDesktop *desktop = SP_ACTIVE_DESKTOP; + + unitSelector->addUnit(*unit_table.getUnit("%")); + _old_unit = unitSelector->getUnit(); + if (desktop) { + unitSelector->setUnit(desktop->getNamedView()->display_units->abbr); + _old_unit = desktop->getNamedView()->display_units; + } + widthSpin->setUnitMenu(unitSelector); + unitChangedConn = unitSelector->signal_changed().connect(sigc::mem_fun(*this, &StrokeStyle::unitChangedCB)); + + us->show(); + + hb->pack_start(*us, FALSE, FALSE, 0); + (*widthAdj)->signal_value_changed().connect(sigc::mem_fun(*this, &StrokeStyle::widthChangedCB)); + 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); + + 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::lineDashChangedCB)); + + 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( + sigc::bind<MarkerComboBox *, StrokeStyle *, SPMarkerLoc>( + sigc::ptr_fun(&StrokeStyle::markerSelectCB), startMarkerCombo, this, 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( + sigc::bind<MarkerComboBox *, StrokeStyle *, SPMarkerLoc>( + sigc::ptr_fun(&StrokeStyle::markerSelectCB), midMarkerCombo, this, 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( + sigc::bind<MarkerComboBox *, StrokeStyle *, SPMarkerLoc>( + sigc::ptr_fun(&StrokeStyle::markerSelectCB), endMarkerCombo, this, 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; + + 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")); + + 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")); + + 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, 100.0, 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->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::miterLimitChangedCB)); + 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() +{ + selectModifiedConn.disconnect(); + selectChangedConn.disconnect(); +} + +void StrokeStyle::setDesktop(SPDesktop *desktop) +{ + if (this->desktop != desktop) { + + if (this->desktop) { + selectModifiedConn.disconnect(); + selectChangedConn.disconnect(); + _document_replaced_connection.disconnect(); + } + this->desktop = desktop; + + if (!desktop) { + return; + } + + if (desktop->selection) { + selectChangedConn = desktop->selection->connectChanged(sigc::hide(sigc::mem_fun(*this, &StrokeStyle::selectionChangedCB))); + selectModifiedConn = desktop->selection->connectModified(sigc::hide<0>(sigc::mem_fun(*this, &StrokeStyle::selectionModifiedCB))); + } + + _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::HBox *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); + set_data(icon, tb); + + tb->signal_toggled().connect(sigc::bind<StrokeStyleButton *, StrokeStyle *>( + sigc::ptr_fun(&StrokeStyle::buttonToggledCB), tb, this)); + + return tb; +} + +bool StrokeStyle::shouldMarkersBeUpdated() +{ + return startMarkerCombo->update() || midMarkerCombo->update() || + endMarkerCombo->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, StrokeStyle *spw, SPMarkerLoc const /*which*/) +{ + if (spw->update || spw->shouldMarkersBeUpdated()) { + return; + } + + spw->update = true; + + SPDocument *document = spw->desktop->getDocument(); + if (!document) { + return; + } + + /* Get Marker */ + gchar const *marker = marker_combo->get_active_marker_uri(); + + + SPCSSAttr *css = sp_repr_css_attr_new(); + gchar const *combo_id = marker_combo->get_id(); + sp_repr_css_set_property(css, combo_id, marker); + + // Also update the marker combobox, so the document's markers + // show up at the top of the combobox +// sp_stroke_style_line_update( SP_WIDGET(spw), desktop ? desktop->getSelection() : NULL); + //spw->updateMarkerHist(which); + + Inkscape::Selection *selection = spw->desktop->getSelection(); + auto itemlist= selection->items(); + for(auto i=itemlist.begin();i!=itemlist.end();++i){ + SPItem *item = *i; + if (!SP_IS_SHAPE(item) || SP_IS_RECT(item)) { // can't set marker to rect, until it's converted to using <path> + continue; + } + Inkscape::XML::Node *selrepr = item->getRepr(); + if (selrepr) { + sp_repr_css_change_recursive(selrepr, css, "style"); + SPObject *markerObj = getMarkerObj(marker, document); + spw->setMarkerColor(markerObj, marker_combo->get_loc(), item); + } + + item->requestModified(SP_OBJECT_MODIFIED_FLAG); + item->requestDisplayUpdate(SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_STYLE_MODIFIED_FLAG); + + DocumentUndo::done(document, SP_VERB_DIALOG_FILL_STROKE, _("Set markers")); + } + + sp_repr_css_attr_unref(css); + css = nullptr; + + spw->update = false; +}; + +void StrokeStyle::updateMarkerHist(SPMarkerLoc const which) +{ + switch (which) { + case SP_MARKER_LOC_START: + startMarkerConn.block(); + startMarkerCombo->set_active_history(); + startMarkerConn.unblock(); + break; + + case SP_MARKER_LOC_MID: + midMarkerConn.block(); + midMarkerCombo->set_active_history(); + midMarkerConn.unblock(); + break; + + case SP_MARKER_LOC_END: + endMarkerConn.block(); + endMarkerCombo->set_active_history(); + endMarkerConn.unblock(); + break; + default: + g_assert_not_reached(); + } +} + +/** + * Callback for when UnitMenu widget is modified. + * Triggers update action. + */ +void StrokeStyle::unitChangedCB() +{ + Inkscape::Util::Unit const *new_unit = unitSelector->getUnit(); + if (new_unit->type == Inkscape::Util::UNIT_TYPE_DIMENSIONLESS) { + widthSpin->set_value(100); + } + 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(); +} + +/* + * Fork marker if necessary and set the referencing items url to the new marker + * Return the new marker + */ +SPObject * +StrokeStyle::forkMarker(SPObject *marker, int loc, SPItem *item) +{ + if (!item || !marker) { + return nullptr; + } + + gchar const *marker_id = SPMarkerNames[loc].key; + + /* + * Optimization when all the references to this marker are from this item + * then we can reuse it and don't need to fork + */ + Glib::ustring urlId = Glib::ustring::format("url(#", marker->getRepr()->attribute("id"), ")"); + unsigned int refs = 0; + for (int i = SP_MARKER_LOC_START; i < SP_MARKER_LOC_QTY; i++) { + if (item->style->marker_ptrs[i]->set && + !strcmp(urlId.c_str(), item->style->marker_ptrs[i]->value())) { + refs++; + } + } + if (marker->hrefcount <= refs) { + return marker; + } + + marker = sp_marker_fork_if_necessary(marker); + + // Update the items url to new marker + Inkscape::XML::Node *mark_repr = marker->getRepr(); + SPCSSAttr *css_item = sp_repr_css_attr_new(); + sp_repr_css_set_property(css_item, marker_id, g_strconcat("url(#", mark_repr->attribute("id"), ")", NULL)); + sp_repr_css_change_recursive(item->getRepr(), css_item, "style"); + + sp_repr_css_attr_unref(css_item); + css_item = nullptr; + + return marker; +} + +/** + * Change the color of the marker to match the color of the item. + * Marker stroke color is set to item stroke color. + * Fill color : + * 1. If the item has fill, use that for the marker fill, + * 2. If the marker has same fill and stroke assume its solid, use item stroke for both fill and stroke the line stroke + * 3. If the marker has fill color, use the marker fill color + * + */ +void +StrokeStyle::setMarkerColor(SPObject *marker, int loc, SPItem *item) +{ + + if (!item || !marker) { + return; + } + + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + gboolean colorStock = prefs->getBool("/options/markers/colorStockMarkers", true); + gboolean colorCustom = prefs->getBool("/options/markers/colorCustomMarkers", false); + const gchar *stock = marker->getRepr()->attribute("inkscape:isstock"); + gboolean isStock = (stock && !strcmp(stock,"true")); + + if (isStock ? !colorStock : !colorCustom) { + return; + } + + // Check if we need to fork this marker + marker = forkMarker(marker, loc, item); + + Inkscape::XML::Node *repr = marker->getRepr()->firstChild(); + if (!repr) { + return; + }; + + // Current line style + SPCSSAttr *css_item = sp_css_attr_from_object(item, SP_STYLE_FLAG_ALWAYS); + const char *lstroke = getItemColorForMarker(item, FOR_STROKE, loc); + const char *lstroke_opacity = sp_repr_css_property(css_item, "stroke-opacity", "1"); + const char *lfill = getItemColorForMarker(item, FOR_FILL, loc); + const char *lfill_opacity = sp_repr_css_property(css_item, "fill-opacity", "1"); + + // Current marker style + SPCSSAttr *css_marker = sp_css_attr_from_object(marker->firstChild(), SP_STYLE_FLAG_ALWAYS); + const char *mfill = sp_repr_css_property(css_marker, "fill", "none"); + const char *mstroke = sp_repr_css_property(css_marker, "fill", "none"); + + // Create new marker style with the lines stroke + SPCSSAttr *css = sp_repr_css_attr_new(); + + sp_repr_css_set_property(css, "stroke", lstroke); + sp_repr_css_set_property(css, "stroke-opacity", lstroke_opacity); + + if (strcmp(lfill, "none") ) { + // 1. If the line has fill, use that for the marker fill + sp_repr_css_set_property(css, "fill", lfill); + sp_repr_css_set_property(css, "fill-opacity", lfill_opacity); + } + else if (mfill && mstroke && !strcmp(mfill, mstroke) && mfill[0] == '#' && strcmp(mfill, "#ffffff")) { + // 2. If the marker has same fill and stroke assume its solid. use line stroke for both fill and stroke the line stroke + sp_repr_css_set_property(css, "fill", lstroke); + sp_repr_css_set_property(css, "fill-opacity", lstroke_opacity); + } + else if (mfill && mfill[0] == '#' && strcmp(mfill, "#000000")) { + // 3. If the marker has fill color, use the marker fill color + sp_repr_css_set_property(css, "fill", mfill); + //sp_repr_css_set_property(css, "fill-opacity", mfill_opacity); + } + + sp_repr_css_change_recursive(marker->firstChild()->getRepr(), css, "style"); + + // Tell the combos to update its image cache of this marker + gchar const *mid = marker->getRepr()->attribute("id"); + startMarkerCombo->update_marker_image(mid); + midMarkerCombo->update_marker_image(mid); + endMarkerCombo->update_marker_image(mid); + + sp_repr_css_attr_unref(css); + css = nullptr; + + +} + +/* + * Get the fill or stroke color of the item + * If its a gradient, then return first or last stop color + */ +const char * +StrokeStyle::getItemColorForMarker(SPItem *item, Inkscape::PaintTarget fill_or_stroke, int loc) +{ + SPCSSAttr *css_item = sp_css_attr_from_object(item, SP_STYLE_FLAG_ALWAYS); + const char *color; + if (fill_or_stroke == FOR_FILL) + color = sp_repr_css_property(css_item, "fill", "none"); + else + color = sp_repr_css_property(css_item, "stroke", "none"); + + if (!strncmp (color, "url(", 4)) { + // If the item has a gradient use the first stop color for the marker + + SPGradient *grad = getGradient(item, fill_or_stroke); + if (grad) { + SPGradient *vector = grad->getVector(FALSE); + SPStop *stop = vector->getFirstStop(); + if (loc == SP_MARKER_LOC_END) { + stop = sp_last_stop(vector); + } + if (stop) { + guint32 const c1 = stop->get_rgba32(); + gchar c[64]; + sp_svg_write_color(c, sizeof(c), c1); + color = g_strdup(c); + //lstroke_opacity = Glib::ustring::format(stop->opacity).c_str(); + } + } + } + return color; +} +/** + * Sets selector widgets' dash style from an SPStyle object. + */ +void +StrokeStyle::setDashSelectorFromStyle(Inkscape::UI::Widget::DashSelector *dsel, SPStyle *style) +{ + if (!style->stroke_dasharray.values.empty()) { + double d[64]; + size_t len = MIN(style->stroke_dasharray.values.size(), 64); + /* Set dash */ + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + gboolean scale = prefs->getBool("/options/dash/scale", true); + double scaledash = 1.0; + if (scale) { + scaledash = style->stroke_width.computed; + } + for (unsigned i = 0; i < len; i++) { + if (style->stroke_width.computed != 0) + d[i] = style->stroke_dasharray.values[i].value / scaledash; + else + d[i] = style->stroke_dasharray.values[i].value; // is there a better thing to do for stroke_width==0? + } + dsel->set_dash(len, d, + style->stroke_width.computed != 0 ? style->stroke_dashoffset.value / scaledash + : style->stroke_dashoffset.value); + } else { + dsel->set_dash(0, nullptr, 0.0); + } +} + +/** + * 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; + } + + update = true; + + Inkscape::Selection *sel = desktop ? desktop->getSelection() : nullptr; + + FillOrStroke kind = GPOINTER_TO_INT(get_data("kind")) ? FILL : STROKE; + + // create temporary style + SPStyle query(SP_ACTIVE_DOCUMENT); + // query into it + int result_sw = sp_desktop_query_style (SP_ACTIVE_DESKTOP, &query, QUERY_STYLE_PROPERTY_STROKEWIDTH); + int result_ml = sp_desktop_query_style (SP_ACTIVE_DESKTOP, &query, QUERY_STYLE_PROPERTY_STROKEMITERLIMIT); + int result_cap = sp_desktop_query_style (SP_ACTIVE_DESKTOP, &query, QUERY_STYLE_PROPERTY_STROKECAP); + int result_join = sp_desktop_query_style (SP_ACTIVE_DESKTOP, &query, QUERY_STYLE_PROPERTY_STROKEJOIN); + + int result_order = sp_desktop_query_style (SP_ACTIVE_DESKTOP, &query, QUERY_STYLE_PROPERTY_PAINTORDER); + + SPIPaint &targPaint = *query.getFillOrStroke(kind == FILL); + + if (!sel || sel->isEmpty()) { + // Nothing selected, grey-out all controls in the stroke-style dialog + table->set_sensitive(false); + + update = false; + + return; + } else { + table->set_sensitive(true); + + if (result_sw == QUERY_STYLE_MULTIPLE_AVERAGED) { + unitSelector->setUnit("%"); + } 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(SP_ACTIVE_DESKTOP->getNamedView()->display_units->abbr); + } + } + + Inkscape::Util::Unit const *unit = unitSelector->getUnit(); + + 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 + // The markers might still be shown though, so these will not be disabled + bool enabled = (result_sw != QUERY_STYLE_NOTHING) && !targPaint.isNoneSet(); + /* No objects stroked, set insensitive */ + joinMiter->set_sensitive(enabled); + joinRound->set_sensitive(enabled); + joinBevel->set_sensitive(enabled); + + miterLimitSpin->set_sensitive(enabled); + + capButt->set_sensitive(enabled); + capRound->set_sensitive(enabled); + capSquare->set_sensitive(enabled); + + dashSelector->set_sensitive(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, 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->type == Inkscape::Util::UNIT_TYPE_LINEAR) { + return Inkscape::Util::Quantity::convert(width_typed, unit, "px"); + } else { // percentage + const gdouble old_w = item->style->stroke_width.computed; + return old_w * width_typed / 100; + } +} + +/** + * Sets line properties like width, dashes, markers, etc. on all currently selected items. + */ +void +StrokeStyle::scaleLine() +{ + if (!desktop) { + return; + } + + if (update) { + return; + } + + update = true; + + SPDocument *document = desktop->getDocument(); + Inkscape::Selection *selection = desktop->getSelection(); + auto items= selection->items(); + + /* TODO: Create some standardized method */ + SPCSSAttr *css = sp_repr_css_attr_new(); + + if (!items.empty()) { + double width_typed = (*widthAdj)->get_value(); + double const miterlimit = (*miterLimitAdj)->get_value(); + + Inkscape::Util::Unit const *const unit = unitSelector->getUnit(); + + double *dash, offset; + int ndash; + dashSelector->get_dash(&ndash, &dash, &offset); + + for(auto i=items.begin();i!=items.end();++i){ + /* Set stroke width */ + const double width = calcScaleLineWidth(width_typed, (*i), unit); + + { + Inkscape::CSSOStringStream os_width; + os_width << width; + sp_repr_css_set_property(css, "stroke-width", os_width.str().c_str()); + } + + { + Inkscape::CSSOStringStream os_ml; + os_ml << miterlimit; + sp_repr_css_set_property(css, "stroke-miterlimit", os_ml.str().c_str()); + } + + /* Set dash */ + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + gboolean scale = prefs->getBool("/options/dash/scale", true); + if (scale) { + setScaledDash(css, ndash, dash, offset, width); + } + else { + setScaledDash(css, ndash, dash, offset, document->getDocumentScale()[0]); + } + sp_desktop_apply_css_recursive ((*i), css, true); + } + + g_free(dash); + + if (unit->type != Inkscape::Util::UNIT_TYPE_LINEAR) { + // reset to 100 percent + (*widthAdj)->set_value(100.0); + } + + } + + // we have already changed the items, so set style without changing selection + // FIXME: move the above stroke-setting stuff, including percentages, to desktop-style + sp_desktop_set_style (desktop, css, false); + + sp_repr_css_attr_unref(css); + css = nullptr; + + DocumentUndo::done(document, SP_VERB_DIALOG_FILL_STROKE, + _("Set stroke style")); + + update = false; +} + +/** + * Callback for when the stroke style's width changes. + * Causes all line styles to be applied to all selected items. + */ +void +StrokeStyle::widthChangedCB() +{ + if (update) { + return; + } + + scaleLine(); +} + +/** + * Callback for when the stroke style's miterlimit changes. + * Causes all line styles to be applied to all selected items. + */ +void +StrokeStyle::miterLimitChangedCB() +{ + if (update) { + return; + } + + scaleLine(); +} + +/** + * Callback for when the stroke style's dash changes. + * Causes all line styles to be applied to all selected items. + */ + +void +StrokeStyle::lineDashChangedCB() +{ + if (update) { + return; + } + + scaleLine(); +} + +/** + * 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(), SP_VERB_DIALOG_FILL_STROKE, _("Set stroke style")); + } +} + +/** + * Updates the join style toggle buttons + */ +void +StrokeStyle::setJoinButtons(Gtk::ToggleButton *active) +{ + joinMiter->set_active(active == joinMiter); + miterLimitSpin->set_sensitive(active == joinMiter); + 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 + + // -1 means prefs haven't been queried yet + int update = -1; + + 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->update()) { + return; + } + + // Per SVG spec, text objects cannot have markers; disable combobox if only texts are selected + combo->set_sensitive(!all_texts); + + SPObject *marker = nullptr; + + if (!all_texts) { + 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); + + // Set the marker color + if (update < 0) { + // query prefs (only once) + Inkscape::Preferences *prefs = Inkscape::Preferences::get(); + update = prefs->getBool("/options/markers/colorUpdateMarkers", true) ? 1 : 0; + } + + if (update > 0) { + setMarkerColor(marker, markertype.loc, SP_ITEM(object)); + + if (!skip_undo) { + SPDocument *document = desktop->getDocument(); + DocumentUndo::maybeDone(document, "UaM", SP_VERB_DIALOG_FILL_STROKE, + _("Set marker color")); + } + } + } + } + + // Scroll the combobox to that marker + combo->set_current(marker); + } + +} + + + +} // 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 : |