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diff --git a/src/desktop-style.cpp b/src/desktop-style.cpp
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+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Desktop style management
+ *
+ * Authors:
+ * bulia byak
+ * verbalshadow
+ * Jon A. Cruz <jon@joncruz.org>
+ * Abhishek Sharma
+ *
+ * Copyright (C) 2004, 2006 authors
+ *
+ * Released under GNU GPL v2+, read the file 'COPYING' for more information.
+ */
+
+#include <string>
+#include <cstring>
+
+#include <glibmm.h>
+
+#include "desktop-style.h"
+
+#include "color-rgba.h"
+#include "desktop.h"
+#include "filter-chemistry.h"
+#include "inkscape.h"
+#include "selection.h"
+
+#include "object/box3d-side.h"
+#include "object/filters/blend.h"
+#include "object/filters/gaussian-blur.h"
+#include "object/sp-flowdiv.h"
+#include "object/sp-flowregion.h"
+#include "object/sp-flowtext.h"
+#include "object/sp-hatch.h"
+#include "object/sp-linear-gradient.h"
+#include "object/sp-path.h"
+#include "object/sp-pattern.h"
+#include "object/sp-radial-gradient.h"
+#include "object/sp-textpath.h"
+#include "object/sp-tref.h"
+#include "object/sp-tspan.h"
+#include "object/sp-use.h"
+#include "style.h"
+
+#include "svg/css-ostringstream.h"
+#include "svg/svg-color.h"
+#include "svg/svg.h"
+
+#include "ui/tools/tool-base.h"
+
+#include "xml/sp-css-attr.h"
+#include "xml/attribute-record.h"
+
+namespace {
+
+bool isTextualItem(SPObject const *obj)
+{
+ bool isTextual = dynamic_cast<SPText const *>(obj) //
+ || dynamic_cast<SPFlowtext const *>(obj) //
+ || dynamic_cast<SPTSpan const *>(obj) //
+ || dynamic_cast<SPTRef const *>(obj) //
+ || dynamic_cast<SPTextPath const *>(obj) //
+ || dynamic_cast<SPFlowdiv const *>(obj) //
+ || dynamic_cast<SPFlowpara const *>(obj) //
+ || dynamic_cast<SPFlowtspan const *>(obj);
+
+ return isTextual;
+}
+
+} // namespace
+
+/**
+ * Set color on selection on desktop.
+ */
+void
+sp_desktop_set_color(SPDesktop *desktop, ColorRGBA const &color, bool is_relative, bool fill)
+{
+ /// \todo relative color setting
+ if (is_relative) {
+ g_warning("FIXME: relative color setting not yet implemented");
+ return;
+ }
+
+ guint32 rgba = SP_RGBA32_F_COMPOSE(color[0], color[1], color[2], color[3]);
+ gchar b[64];
+ sp_svg_write_color(b, sizeof(b), rgba);
+ SPCSSAttr *css = sp_repr_css_attr_new();
+ if (fill) {
+ sp_repr_css_set_property(css, "fill", b);
+ Inkscape::CSSOStringStream osalpha;
+ osalpha << color[3];
+ sp_repr_css_set_property(css, "fill-opacity", osalpha.str().c_str());
+ } else {
+ sp_repr_css_set_property(css, "stroke", b);
+ Inkscape::CSSOStringStream osalpha;
+ osalpha << color[3];
+ sp_repr_css_set_property(css, "stroke-opacity", osalpha.str().c_str());
+ }
+
+ sp_desktop_set_style(desktop, css);
+
+ sp_repr_css_attr_unref(css);
+}
+
+/**
+ * Apply style on object and children, recursively.
+ */
+void
+sp_desktop_apply_css_recursive(SPObject *o, SPCSSAttr *css, bool skip_lines)
+{
+ // non-items should not have style
+ SPItem *item = dynamic_cast<SPItem *>(o);
+ if (!item) {
+ return;
+ }
+
+ // 1. tspans with role=line are not regular objects in that they are not supposed to have style of their own,
+ // but must always inherit from the parent text. Same for textPath.
+ // However, if the line tspan or textPath contains some style (old file?), we reluctantly set our style to it too.
+
+ // 2. Generally we allow setting style on clones, but when it's inside flowRegion, do not touch
+ // it, be it clone or not; it's just styleless shape (because that's how Inkscape does
+ // flowtext).
+
+ SPTSpan *tspan = dynamic_cast<SPTSpan *>(o);
+
+ if (!(skip_lines
+ && ((tspan && tspan->role == SP_TSPAN_ROLE_LINE)
+ || dynamic_cast<SPFlowdiv *>(o)
+ || dynamic_cast<SPFlowpara *>(o)
+ || dynamic_cast<SPTextPath *>(o))
+ && !o->getAttribute("style"))
+ &&
+ !(dynamic_cast<SPFlowregionbreak *>(o) ||
+ dynamic_cast<SPFlowregionExclude *>(o) ||
+ (dynamic_cast<SPUse *>(o) &&
+ o->parent &&
+ (dynamic_cast<SPFlowregion *>(o->parent) ||
+ dynamic_cast<SPFlowregionExclude *>(o->parent)
+ )
+ )
+ )
+ ) {
+
+ SPCSSAttr *css_set = sp_repr_css_attr_new();
+ sp_repr_css_merge(css_set, css);
+
+ // Scale the style by the inverse of the accumulated parent transform in the paste context.
+ {
+ Geom::Affine const local(item->i2doc_affine());
+ double const ex(local.descrim());
+ if ( ( ex != 0. )
+ && ( ex != 1. ) ) {
+ sp_css_attr_scale(css_set, 1/ex);
+ }
+ }
+
+ o->changeCSS(css_set,"style");
+
+ sp_repr_css_attr_unref(css_set);
+ }
+
+ // setting style on child of clone spills into the clone original (via shared repr), don't do it!
+ if (dynamic_cast<SPUse *>(o)) {
+ return;
+ }
+
+ for (auto& child: o->children) {
+ if (sp_repr_css_property(css, "opacity", nullptr) != nullptr) {
+ // Unset properties which are accumulating and thus should not be set recursively.
+ // For example, setting opacity 0.5 on a group recursively would result in the visible opacity of 0.25 for an item in the group.
+ SPCSSAttr *css_recurse = sp_repr_css_attr_new();
+ sp_repr_css_merge(css_recurse, css);
+ sp_repr_css_set_property(css_recurse, "opacity", nullptr);
+ sp_desktop_apply_css_recursive(&child, css_recurse, skip_lines);
+ sp_repr_css_attr_unref(css_recurse);
+ } else {
+ sp_desktop_apply_css_recursive(&child, css, skip_lines);
+ }
+ }
+}
+
+/**
+ * Apply style on selection on desktop.
+ */
+
+void sp_desktop_set_style(SPDesktop *desktop, SPCSSAttr *css, bool change, bool write_current, bool switch_style)
+{
+ return sp_desktop_set_style(desktop->getSelection(), desktop, css, change, write_current, switch_style);
+}
+
+void
+sp_desktop_set_style(Inkscape::ObjectSet *set, SPDesktop *desktop, SPCSSAttr *css, bool change, bool write_current, bool switch_style)
+{
+ if (write_current) {
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ // 1. Set internal value
+ sp_repr_css_merge(desktop->current, css);
+
+ // 1a. Write to prefs; make a copy and unset any URIs first
+ SPCSSAttr *css_write = sp_repr_css_attr_new();
+ sp_repr_css_merge(css_write, css);
+ sp_css_attr_unset_uris(css_write);
+ prefs->mergeStyle("/desktop/style", css_write);
+ auto itemlist = set->items();
+ for (auto i = itemlist.begin(); i!= itemlist.end(); ++i) {
+ /* last used styles for 3D box faces are stored separately */
+ SPObject *obj = *i;
+ Box3DSide *side = dynamic_cast<Box3DSide *>(obj);
+ if (side) {
+ prefs->mergeStyle(
+ Glib::ustring("/desktop/") + side->axes_string() + "/style", css_write);
+ }
+ }
+ sp_repr_css_attr_unref(css_write);
+ }
+
+ if (!change)
+ return;
+
+// 2. Emit signal... See desktop->connectSetStyle in text-tool, tweak-tool, and gradient-drag.
+ bool intercepted = desktop->_set_style_signal.emit(css, switch_style);
+
+/** \todo
+ * FIXME: in set_style, compensate pattern and gradient fills, stroke width,
+ * rect corners, font size for the object's own transform so that pasting
+ * fills does not depend on preserve/optimize.
+ */
+
+// 3. If nobody has intercepted the signal, apply the style to the selection
+ if (!intercepted) {
+ // If we have an event context, update its cursor (TODO: it could be neater to do this with the signal sent above, but what if the signal gets intercepted?)
+ if (desktop->event_context) {
+ desktop->event_context->use_tool_cursor();
+ }
+
+ // Remove text attributes if not text...
+ // Do this once in case a zillion objects are selected.
+ SPCSSAttr *css_no_text = sp_repr_css_attr_new();
+ sp_repr_css_merge(css_no_text, css);
+ css_no_text = sp_css_attr_unset_text(css_no_text);
+
+ auto itemlist = set->items();
+ for (auto i = itemlist.begin(); i!= itemlist.end(); ++i) {
+ SPItem *item = *i;
+
+ // If not text, don't apply text attributes (can a group have text attributes? Yes! FIXME)
+ if (isTextualItem(item)) {
+
+ // If any font property has changed, then we have written out the font
+ // properties in longhand and we need to remove the 'font' shorthand.
+ if( !sp_repr_css_property_is_unset(css, "font-family") ) {
+ sp_repr_css_unset_property(css, "font");
+ }
+
+ sp_desktop_apply_css_recursive(item, css, true);
+
+ } else {
+
+ sp_desktop_apply_css_recursive(item, css_no_text, true);
+
+ }
+ }
+ sp_repr_css_attr_unref(css_no_text);
+ }
+}
+
+/**
+ * Return the desktop's current style.
+ */
+SPCSSAttr *
+sp_desktop_get_style(SPDesktop *desktop, bool with_text)
+{
+ SPCSSAttr *css = sp_repr_css_attr_new();
+ sp_repr_css_merge(css, desktop->current);
+ const auto & l = css->attributeList();
+ if (l.empty()) {
+ sp_repr_css_attr_unref(css);
+ return nullptr;
+ } else {
+ if (!with_text) {
+ css = sp_css_attr_unset_text(css);
+ }
+ return css;
+ }
+}
+
+/**
+ * Return the desktop's current color.
+ */
+guint32
+sp_desktop_get_color(SPDesktop *desktop, bool is_fill)
+{
+ guint32 r = 0; // if there's no color, return black
+ gchar const *property = sp_repr_css_property(desktop->current,
+ is_fill ? "fill" : "stroke",
+ "#000");
+
+ if (desktop->current && property) { // if there is style and the property in it,
+ if (strncmp(property, "url", 3)) { // and if it's not url,
+ // read it
+ r = sp_svg_read_color(property, r);
+ }
+ }
+
+ return r;
+}
+
+double
+sp_desktop_get_master_opacity_tool(SPDesktop *desktop, Glib::ustring const &tool, bool *has_opacity)
+{
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ SPCSSAttr *css = nullptr;
+ gfloat value = 1.0; // default if nothing else found
+ if (has_opacity)
+ *has_opacity = false;
+ if (prefs->getBool(tool + "/usecurrent")) {
+ css = sp_desktop_get_style(desktop, true);
+ } else {
+ css = prefs->getStyle(tool + "/style");
+ }
+
+ if (css) {
+ gchar const *property = css ? sp_repr_css_property(css, "opacity", "1.000") : nullptr;
+
+ if (desktop->current && property) { // if there is style and the property in it,
+ if ( !sp_svg_number_read_f(property, &value) ) {
+ value = 1.0; // things failed. set back to the default
+ } else {
+ if (has_opacity)
+ *has_opacity = true;
+ }
+ }
+
+ sp_repr_css_attr_unref(css);
+ }
+
+ return value;
+}
+double
+sp_desktop_get_opacity_tool(SPDesktop *desktop, Glib::ustring const &tool, bool is_fill)
+{
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ SPCSSAttr *css = nullptr;
+ gfloat value = 1.0; // default if nothing else found
+ if (prefs->getBool(tool + "/usecurrent")) {
+ css = sp_desktop_get_style(desktop, true);
+ } else {
+ css = prefs->getStyle(tool + "/style");
+ }
+
+ if (css) {
+ gchar const *property = css ? sp_repr_css_property(css, is_fill ? "fill-opacity": "stroke-opacity", "1.000") : nullptr;
+
+ if (desktop->current && property) { // if there is style and the property in it,
+ if ( !sp_svg_number_read_f(property, &value) ) {
+ value = 1.0; // things failed. set back to the default
+ }
+ }
+
+ sp_repr_css_attr_unref(css);
+ }
+
+ return value;
+}
+
+guint32
+sp_desktop_get_color_tool(SPDesktop *desktop, Glib::ustring const &tool, bool is_fill, bool *has_color)
+{
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ SPCSSAttr *css = nullptr;
+ guint32 r = 0; // if there's no color, return black
+ if (has_color)
+ *has_color = false;
+ bool styleFromCurrent = prefs->getBool(tool + "/usecurrent");
+ if (styleFromCurrent) {
+ css = sp_desktop_get_style(desktop, true);
+ } else {
+ css = prefs->getStyle(tool + "/style");
+ Inkscape::GC::anchor(css);
+ }
+
+ if (css) {
+ gchar const *property = sp_repr_css_property(css, is_fill ? "fill" : "stroke", "#000");
+
+ if (desktop->current && property) { // if there is style and the property in it,
+ if (strncmp(property, "url", 3) && strncmp(property, "none", 4)) { // and if it's not url or none,
+ // read it
+ r = sp_svg_read_color(property, r);
+ if (has_color)
+ *has_color = true;
+ }
+ }
+
+ sp_repr_css_attr_unref(css);
+ }
+
+ return r | 0xff;
+}
+
+/**
+ * Apply the desktop's current style or the tool style to repr.
+ */
+void
+sp_desktop_apply_style_tool(SPDesktop *desktop, Inkscape::XML::Node *repr, Glib::ustring const &tool_path, bool with_text)
+{
+ SPCSSAttr *css_current = sp_desktop_get_style(desktop, with_text);
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+
+ if (prefs->getBool(tool_path + "/usecurrent") && css_current) {
+ sp_repr_css_unset_property(css_current, "mix-blend-mode");
+ sp_repr_css_unset_property(css_current, "filter");
+ sp_repr_css_set(repr, css_current, "style");
+ } else {
+ SPCSSAttr *css = prefs->getInheritedStyle(tool_path + "/style");
+ sp_repr_css_set(repr, css, "style");
+ sp_repr_css_attr_unref(css);
+ }
+ if (css_current) {
+ sp_repr_css_attr_unref(css_current);
+ }
+}
+
+/**
+ * Returns the font size (in SVG pixels) of the text tool style (if text
+ * tool uses its own style) or desktop style (otherwise).
+*/
+double
+sp_desktop_get_font_size_tool(SPDesktop *desktop)
+{
+ (void)desktop; // TODO cleanup
+ Inkscape::Preferences *prefs = Inkscape::Preferences::get();
+ Glib::ustring desktop_style = prefs->getString("/desktop/style");
+ Glib::ustring style_str;
+ if ((prefs->getBool("/tools/text/usecurrent")) && !desktop_style.empty()) {
+ style_str = desktop_style;
+ } else {
+ style_str = prefs->getString("/tools/text/style");
+ }
+
+ double ret = 12;
+ if (!style_str.empty()) {
+ SPStyle style(SP_ACTIVE_DOCUMENT);
+ style.mergeString(style_str.data());
+ ret = style.font_size.computed;
+ }
+ return ret;
+}
+
+/** Determine average stroke width, simple method */
+gdouble
+stroke_average_width (const std::vector<SPItem*> &objects)
+{
+ if (objects.empty())
+ return Geom::infinity();
+
+ gdouble avgwidth = 0.0;
+ bool notstroked = true;
+ int n_notstroked = 0;
+ for (auto item : objects) {
+ if (!item) {
+ continue;
+ }
+
+ Geom::Affine i2dt = item->i2dt_affine();
+
+ double width = item->style->stroke_width.computed * i2dt.descrim();
+
+ // Width becomes NaN when scaling a diagonal line to a horizontal line (lp:825840)
+ if (item->style->stroke.isNone() || std::isnan(width)) {
+ ++n_notstroked; // do not count nonstroked objects
+ continue;
+ } else {
+ notstroked = false;
+ }
+
+ avgwidth += width;
+ }
+
+ if (notstroked)
+ return Geom::infinity();
+
+ return avgwidth / (objects.size() - n_notstroked);
+}
+
+static bool vectorsClose( std::vector<double> const &lhs, std::vector<double> const &rhs )
+{
+ bool isClose = false;
+ if ( lhs.size() == rhs.size() ) {
+ static double epsilon = 1e-6;
+ isClose = true;
+ for ( size_t i = 0; (i < lhs.size()) && isClose; ++i ) {
+ isClose = fabs(lhs[i] - rhs[i]) < epsilon;
+ }
+ }
+ return isClose;
+}
+
+
+/**
+ * Write to style_res the average fill or stroke of list of objects, if applicable.
+ */
+int
+objects_query_fillstroke (const std::vector<SPItem*> &objects, SPStyle *style_res, bool const isfill)
+{
+ if (objects.empty()) {
+ /* No objects, set empty */
+ return QUERY_STYLE_NOTHING;
+ }
+
+ SPIPaint *paint_res = style_res->getFillOrStroke(isfill);
+ bool paintImpossible = true;
+ paint_res->set = true;
+
+ SVGICCColor* iccColor = nullptr;
+
+ bool iccSeen = false;
+ gfloat c[4];
+ c[0] = c[1] = c[2] = c[3] = 0.0;
+ gint num = 0;
+
+ gfloat prev[3];
+ prev[0] = prev[1] = prev[2] = 0.0;
+ bool same_color = true;
+
+ for (auto obj : objects) {
+ if (!obj) {
+ continue;
+ }
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ SPIPaint *paint = style->getFillOrStroke(isfill);
+ if (!paint) {
+ continue;
+ }
+
+ // We consider paint "effectively set" for anything within text hierarchy
+ SPObject *parent = obj->parent;
+ bool paint_effectively_set =
+ paint->set || (dynamic_cast<SPText *>(parent) || dynamic_cast<SPTextPath *>(parent) || dynamic_cast<SPTSpan *>(parent)
+ || dynamic_cast<SPFlowtext *>(parent) || dynamic_cast<SPFlowdiv *>(parent) || dynamic_cast<SPFlowpara *>(parent)
+ || dynamic_cast<SPFlowtspan *>(parent) || dynamic_cast<SPFlowline*>(parent));
+
+ // 1. Bail out with QUERY_STYLE_MULTIPLE_DIFFERENT if necessary
+
+ // cppcheck-suppress comparisonOfBoolWithInt
+ if ((!paintImpossible) && (!paint->isSameType(*paint_res) || (paint_res->set != paint_effectively_set))) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT; // different types of paint
+ }
+
+ if (paint_res->set && paint->set && paint_res->isPaintserver()) {
+ // both previous paint and this paint were a server, see if the servers are compatible
+
+ SPPaintServer *server_res = isfill ? style_res->getFillPaintServer() : style_res->getStrokePaintServer();
+ SPPaintServer *server = isfill ? style->getFillPaintServer() : style->getStrokePaintServer();
+
+ SPLinearGradient *linear_res = dynamic_cast<SPLinearGradient *>(server_res);
+ SPRadialGradient *radial_res = linear_res ? nullptr : dynamic_cast<SPRadialGradient *>(server_res);
+ SPPattern *pattern_res = (linear_res || radial_res) ? nullptr : dynamic_cast<SPPattern *>(server_res);
+ SPHatch *hatch_res =
+ (linear_res || radial_res || pattern_res) ? nullptr : dynamic_cast<SPHatch *>(server_res);
+
+ if (linear_res) {
+ SPLinearGradient *linear = dynamic_cast<SPLinearGradient *>(server);
+ if (!linear) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT; // different kind of server
+ }
+
+ SPGradient *vector = linear->getVector();
+ SPGradient *vector_res = linear_res->getVector();
+ if (vector_res != vector) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT; // different gradient vectors
+ }
+ } else if (radial_res) {
+ SPRadialGradient *radial = dynamic_cast<SPRadialGradient *>(server);
+ if (!radial) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT; // different kind of server
+ }
+
+ SPGradient *vector = radial->getVector();
+ SPGradient *vector_res = radial_res->getVector();
+ if (vector_res != vector) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT; // different gradient vectors
+ }
+ } else if (pattern_res) {
+ SPPattern *pattern = dynamic_cast<SPPattern *>(server);
+ if (!pattern) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT; // different kind of server
+ }
+
+ SPPattern *pat = SP_PATTERN (server)->rootPattern();
+ SPPattern *pat_res = SP_PATTERN (server_res)->rootPattern();
+ if (pat_res != pat) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT; // different pattern roots
+ }
+ } else if (hatch_res) {
+ SPHatch *hatch = dynamic_cast<SPHatch *>(server);
+ if (!hatch) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT; // different kind of server
+ }
+
+ SPHatch *hat = SP_HATCH(server)->rootHatch();
+ SPHatch *hat_res = SP_HATCH(server_res)->rootHatch();
+ if (hat_res != hat) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT; // different hatch roots
+ }
+ }
+ }
+
+ // 2. Sum color, copy server from paint to paint_res
+
+ if (paint_res->set && paint_effectively_set && paint->isColor()) {
+ gfloat d[3];
+ paint->value.color.get_rgb_floatv(d);
+
+ // Check if this color is the same as previous
+ if (paintImpossible) {
+ prev[0] = d[0];
+ prev[1] = d[1];
+ prev[2] = d[2];
+ paint_res->setColor(d[0], d[1], d[2]);
+ iccColor = paint->value.color.icc;
+ iccSeen = true;
+ } else {
+ if (same_color && (prev[0] != d[0] || prev[1] != d[1] || prev[2] != d[2])) {
+ same_color = false;
+ iccColor = nullptr;
+ }
+ if ( iccSeen && iccColor ) {
+ if ( !paint->value.color.icc
+ || (iccColor->colorProfile != paint->value.color.icc->colorProfile)
+ || !vectorsClose(iccColor->colors, paint->value.color.icc->colors) ) {
+ same_color = false;
+ iccColor = nullptr;
+ }
+ }
+ }
+
+ // average color
+ c[0] += d[0];
+ c[1] += d[1];
+ c[2] += d[2];
+ c[3] += SP_SCALE24_TO_FLOAT (isfill? style->fill_opacity.value : style->stroke_opacity.value);
+
+ num ++;
+ }
+
+ paintImpossible = false;
+ paint_res->colorSet = paint->colorSet;
+ paint_res->paintOrigin = paint->paintOrigin;
+ if (paint_res->set && paint_effectively_set && paint->isPaintserver()) { // copy the server
+ if (isfill) {
+ sp_style_set_to_uri(style_res, true, style->getFillURI());
+ } else {
+ sp_style_set_to_uri(style_res, false, style->getStrokeURI());
+ }
+ }
+ paint_res->set = paint_effectively_set;
+ style_res->fill_rule.computed = style->fill_rule.computed; // no averaging on this, just use the last one
+ }
+
+ // After all objects processed, divide the color if necessary and return
+ if (paint_res->set && paint_res->isColor()) { // set the color
+ g_assert (num >= 1);
+
+ c[0] /= num;
+ c[1] /= num;
+ c[2] /= num;
+ c[3] /= num;
+ paint_res->setColor(c[0], c[1], c[2]);
+ if (isfill) {
+ style_res->fill_opacity.value = SP_SCALE24_FROM_FLOAT (c[3]);
+ } else {
+ style_res->stroke_opacity.value = SP_SCALE24_FROM_FLOAT (c[3]);
+ }
+
+
+ if ( iccSeen && iccColor ) {
+ // TODO check for existing
+ SVGICCColor* tmp = new SVGICCColor(*iccColor);
+ paint_res->value.color.icc = tmp;
+ }
+
+ if (num > 1) {
+ if (same_color)
+ return QUERY_STYLE_MULTIPLE_SAME;
+ else
+ return QUERY_STYLE_MULTIPLE_AVERAGED;
+ } else {
+ return QUERY_STYLE_SINGLE;
+ }
+ }
+
+ // Not color
+ if (objects.size() > 1) {
+ return QUERY_STYLE_MULTIPLE_SAME;
+ } else {
+ return QUERY_STYLE_SINGLE;
+ }
+}
+
+/**
+ * Write to style_res the average opacity of a list of objects.
+ */
+int
+objects_query_opacity (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ if (objects.empty()) {
+ /* No objects, set empty */
+ return QUERY_STYLE_NOTHING;
+ }
+
+ gdouble opacity_sum = 0;
+ gdouble opacity_prev = -1;
+ bool same_opacity = true;
+ guint opacity_items = 0;
+
+
+ for (auto obj : objects) {
+ if (!obj) {
+ continue;
+ }
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ double opacity = SP_SCALE24_TO_FLOAT(style->opacity.value);
+ opacity_sum += opacity;
+ if (opacity_prev != -1 && opacity != opacity_prev) {
+ same_opacity = false;
+ }
+ opacity_prev = opacity;
+ opacity_items ++;
+ }
+ if (opacity_items > 1) {
+ opacity_sum /= opacity_items;
+ }
+
+ style_res->opacity.value = SP_SCALE24_FROM_FLOAT(opacity_sum);
+
+ if (opacity_items == 0) {
+ return QUERY_STYLE_NOTHING;
+ } else if (opacity_items == 1) {
+ return QUERY_STYLE_SINGLE;
+ } else {
+ if (same_opacity) {
+ return QUERY_STYLE_MULTIPLE_SAME;
+ } else {
+ return QUERY_STYLE_MULTIPLE_AVERAGED;
+ }
+ }
+}
+
+/**
+ * Write to style_res the average stroke width of a list of objects.
+ */
+int
+objects_query_strokewidth (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ if (objects.empty()) {
+ /* No objects, set empty */
+ return QUERY_STYLE_NOTHING;
+ }
+
+ gdouble avgwidth = 0.0;
+
+ gdouble prev_sw = -1;
+ bool same_sw = true;
+ bool noneSet = true; // is stroke set to none?
+ bool prev_hairline;
+
+ int n_stroked = 0;
+
+ for (auto obj : objects) {
+ if (!obj) {
+ continue;
+ }
+ SPItem *item = dynamic_cast<SPItem *>(obj);
+ if (!item) {
+ continue;
+ }
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ noneSet &= style->stroke.isNone();
+
+ if (style->stroke_extensions.hairline) {
+ // Can't average a bool. It's true if there's any hairlines in the selection.
+ style_res->stroke_extensions.hairline = true;
+ }
+
+ if (n_stroked > 0 && prev_hairline != style->stroke_extensions.hairline) {
+ same_sw = false;
+ }
+ prev_hairline = style->stroke_extensions.hairline;
+
+ Geom::Affine i2d = item->i2dt_affine();
+ double sw = style->stroke_width.computed * i2d.descrim();
+
+ if (!std::isnan(sw)) {
+ if (prev_sw != -1 && fabs(sw - prev_sw) > 1e-3)
+ same_sw = false;
+ prev_sw = sw;
+
+ avgwidth += sw;
+ n_stroked ++;
+ } else if (style->stroke_extensions.hairline) {
+ n_stroked ++;
+ }
+ }
+
+ if (n_stroked > 1)
+ avgwidth /= (n_stroked);
+
+ style_res->stroke_width.computed = avgwidth;
+ style_res->stroke_width.set = true;
+ style_res->stroke.noneSet = noneSet; // Will only be true if none of the selected objects has it's stroke set.
+
+ if (n_stroked == 0) {
+ return QUERY_STYLE_NOTHING;
+ } else if (n_stroked == 1) {
+ return QUERY_STYLE_SINGLE;
+ } else {
+ if (same_sw)
+ return QUERY_STYLE_MULTIPLE_SAME;
+ else
+ return QUERY_STYLE_MULTIPLE_AVERAGED;
+ }
+}
+
+/**
+ * Write to style_res the average miter limit of a list of objects.
+ */
+int
+objects_query_miterlimit (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ if (objects.empty()) {
+ /* No objects, set empty */
+ return QUERY_STYLE_NOTHING;
+ }
+
+ gdouble avgml = 0.0;
+ int n_stroked = 0;
+
+ gdouble prev_ml = -1;
+ bool same_ml = true;
+
+ for (auto obj : objects) {
+ if (!dynamic_cast<SPItem *>(obj)) {
+ continue;
+ }
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ if ( style->stroke.isNone() ) {
+ continue;
+ }
+
+ n_stroked ++;
+
+ if (prev_ml != -1 && fabs(style->stroke_miterlimit.value - prev_ml) > 1e-3) {
+ same_ml = false;
+ }
+ prev_ml = style->stroke_miterlimit.value;
+
+ avgml += style->stroke_miterlimit.value;
+ }
+
+ if (n_stroked > 1) {
+ avgml /= (n_stroked);
+ }
+
+ style_res->stroke_miterlimit.value = avgml;
+ style_res->stroke_miterlimit.set = true;
+
+ if (n_stroked == 0) {
+ return QUERY_STYLE_NOTHING;
+ } else if (n_stroked == 1) {
+ return QUERY_STYLE_SINGLE;
+ } else {
+ if (same_ml)
+ return QUERY_STYLE_MULTIPLE_SAME;
+ else
+ return QUERY_STYLE_MULTIPLE_AVERAGED;
+ }
+}
+
+/**
+ * Write to style_res the stroke cap of a list of objects.
+ */
+int
+objects_query_strokecap (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ if (objects.empty()) {
+ /* No objects, set empty */
+ return QUERY_STYLE_NOTHING;
+ }
+
+ auto prev_cap = SP_STROKE_LINECAP_BUTT;
+ bool same_cap = true;
+ int n_stroked = 0;
+
+ for (auto obj : objects) {
+ if (!dynamic_cast<SPItem *>(obj)) {
+ continue;
+ }
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ if ( style->stroke.isNone() ) {
+ continue;
+ }
+
+ n_stroked ++;
+
+ if (n_stroked > 1 && style->stroke_linecap.value != prev_cap)
+ same_cap = false;
+ prev_cap = style->stroke_linecap.value;
+ }
+
+ style_res->stroke_linecap.value = prev_cap;
+ style_res->stroke_linecap.set = true;
+
+ if (n_stroked == 0) {
+ return QUERY_STYLE_NOTHING;
+ } else if (n_stroked == 1) {
+ return QUERY_STYLE_SINGLE;
+ } else {
+ if (same_cap)
+ return QUERY_STYLE_MULTIPLE_SAME;
+ else
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ }
+}
+
+/**
+ * Write to style_res the stroke join of a list of objects.
+ */
+int
+objects_query_strokejoin (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ if (objects.empty()) {
+ /* No objects, set empty */
+ return QUERY_STYLE_NOTHING;
+ }
+
+ auto prev_join = SP_STROKE_LINEJOIN_MITER;
+ bool same_join = true;
+ int n_stroked = 0;
+
+ for (auto obj : objects) {
+ if (!dynamic_cast<SPItem *>(obj)) {
+ continue;
+ }
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ if ( style->stroke.isNone() ) {
+ continue;
+ }
+
+ n_stroked ++;
+
+ if (n_stroked > 1 && style->stroke_linejoin.value != prev_join) {
+ same_join = false;
+ }
+ prev_join = style->stroke_linejoin.value;
+ }
+
+ style_res->stroke_linejoin.value = prev_join;
+ style_res->stroke_linejoin.set = true;
+
+ if (n_stroked == 0) {
+ return QUERY_STYLE_NOTHING;
+ } else if (n_stroked == 1) {
+ return QUERY_STYLE_SINGLE;
+ } else {
+ if (same_join)
+ return QUERY_STYLE_MULTIPLE_SAME;
+ else
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ }
+}
+
+/**
+ * Write to style_res the paint order of a list of objects.
+ */
+int
+objects_query_paintorder (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ if (objects.empty()) {
+ /* No objects, set empty */
+ return QUERY_STYLE_NOTHING;
+ }
+
+ std::string prev_order;
+ bool same_order = true;
+ int n_order = 0;
+
+ for (auto obj : objects) {
+ if (!dynamic_cast<SPItem *>(obj)) {
+ continue;
+ }
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ if ( style->stroke.isNone() ) {
+ continue;
+ }
+
+ n_order ++;
+
+ if (style->paint_order.set) {
+ if (!prev_order.empty() && prev_order.compare( style->paint_order.value ) != 0) {
+ same_order = false;
+ }
+ prev_order = style->paint_order.value;
+ }
+ }
+
+
+ g_free( style_res->paint_order.value );
+ style_res->paint_order.value= g_strdup( prev_order.c_str() );
+ style_res->paint_order.set = true;
+
+ if (n_order == 0) {
+ return QUERY_STYLE_NOTHING;
+ } else if (n_order == 1) {
+ return QUERY_STYLE_SINGLE;
+ } else {
+ if (same_order)
+ return QUERY_STYLE_MULTIPLE_SAME;
+ else
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ }
+}
+
+/**
+ * Write to style_res the average font size and spacing of objects.
+ */
+int
+objects_query_fontnumbers (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ bool different = false;
+ bool different_lineheight = false;
+ bool different_lineheight_unit = false;
+
+ double size = 0;
+ double letterspacing = 0;
+ double wordspacing = 0;
+ double lineheight = 0;
+ bool letterspacing_normal = false;
+ bool wordspacing_normal = false;
+ bool lineheight_normal = false;
+ bool lineheight_unit_proportional = false;
+ bool lineheight_unit_absolute = false;
+ bool lineheight_set = false; // Set true if any object has lineheight set.
+
+ double size_prev = 0;
+ double letterspacing_prev = 0;
+ double wordspacing_prev = 0;
+ double lineheight_prev = 0;
+ int lineheight_unit_prev = -1;
+
+ int texts = 0;
+ int no_size = 0;
+
+ for (auto obj : objects) {
+ if (!isTextualItem(obj)) {
+ continue;
+ }
+
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ texts ++;
+ SPItem *item = dynamic_cast<SPItem *>(obj);
+ g_assert(item != nullptr);
+
+ // Quick way of getting document scale. Should be same as:
+ // item->document->getDocumentScale().Affine().descrim()
+ double doc_scale = Geom::Affine(item->i2dt_affine()).descrim();
+
+ double dummy = style->font_size.computed * doc_scale;
+ if (!std::isnan(dummy)) {
+ size += dummy; /// \todo FIXME: we assume non-% units here
+ } else {
+ no_size++;
+ }
+
+ if (style->letter_spacing.normal) {
+ if (!different && (letterspacing_prev == 0 || letterspacing_prev == letterspacing)) {
+ letterspacing_normal = true;
+ }
+ } else {
+ letterspacing += style->letter_spacing.computed * doc_scale;; /// \todo FIXME: we assume non-% units here
+ letterspacing_normal = false;
+ }
+
+ if (style->word_spacing.normal) {
+ if (!different && (wordspacing_prev == 0 || wordspacing_prev == wordspacing)) {
+ wordspacing_normal = true;
+ }
+ } else {
+ wordspacing += style->word_spacing.computed * doc_scale; /// \todo FIXME: we assume non-% units here
+ wordspacing_normal = false;
+ }
+
+ // If all line spacing units the same, use that (average line spacing).
+ // Else if all line spacings absolute, use 'px' (average line spacing).
+ // Else if all line spacings proportional, use % (average line spacing).
+ // Else use default.
+ double lineheight_current;
+ int lineheight_unit_current;
+ if (style->line_height.normal) {
+ lineheight_current = Inkscape::Text::Layout::LINE_HEIGHT_NORMAL;
+ lineheight_unit_current = SP_CSS_UNIT_NONE;
+ if (!different_lineheight &&
+ (lineheight_prev == 0 || lineheight_prev == lineheight_current))
+ lineheight_normal = true;
+ } else if (style->line_height.unit == SP_CSS_UNIT_NONE ||
+ style->line_height.unit == SP_CSS_UNIT_PERCENT ||
+ style->line_height.unit == SP_CSS_UNIT_EM ||
+ style->line_height.unit == SP_CSS_UNIT_EX ||
+ style->font_size.computed == 0) {
+ lineheight_current = style->line_height.value;
+ lineheight_unit_current = style->line_height.unit;
+ lineheight_unit_proportional = true;
+ lineheight_normal = false;
+ lineheight += lineheight_current;
+ } else {
+ // Always 'px' internally
+ lineheight_current = style->line_height.computed;
+ lineheight_unit_current = style->line_height.unit;
+ lineheight_unit_absolute = true;
+ lineheight_normal = false;
+ lineheight += lineheight_current * doc_scale;
+ }
+ if (style->line_height.set) {
+ lineheight_set = true;
+ }
+
+ if ((size_prev != 0 && style->font_size.computed != size_prev) ||
+ (letterspacing_prev != 0 && style->letter_spacing.computed != letterspacing_prev) ||
+ (wordspacing_prev != 0 && style->word_spacing.computed != wordspacing_prev)) {
+ different = true;
+ }
+
+ if (lineheight_prev != 0 && lineheight_current != lineheight_prev) {
+ different_lineheight = true;
+ }
+
+ if (lineheight_unit_prev != -1 && lineheight_unit_current != lineheight_unit_prev) {
+ different_lineheight_unit = true;
+ }
+
+ size_prev = style->font_size.computed;
+ letterspacing_prev = style->letter_spacing.computed;
+ wordspacing_prev = style->word_spacing.computed;
+ lineheight_prev = lineheight_current;
+ lineheight_unit_prev = lineheight_unit_current;
+
+ // FIXME: we must detect MULTIPLE_DIFFERENT for these too
+ style_res->text_anchor.computed = style->text_anchor.computed;
+ }
+
+ if (texts == 0)
+ return QUERY_STYLE_NOTHING;
+
+ if (texts > 1) {
+ if (texts - no_size > 0) {
+ size /= (texts - no_size);
+ }
+ letterspacing /= texts;
+ wordspacing /= texts;
+ lineheight /= texts;
+ }
+
+ style_res->font_size.computed = size;
+ style_res->font_size.type = SP_FONT_SIZE_LENGTH;
+
+ style_res->letter_spacing.normal = letterspacing_normal;
+ style_res->letter_spacing.computed = letterspacing;
+
+ style_res->word_spacing.normal = wordspacing_normal;
+ style_res->word_spacing.computed = wordspacing;
+
+ style_res->line_height.normal = lineheight_normal;
+ style_res->line_height.computed = lineheight;
+ style_res->line_height.value = lineheight;
+ if (different_lineheight_unit) {
+ if (lineheight_unit_absolute && !lineheight_unit_proportional) {
+ // Mixture of absolute units
+ style_res->line_height.unit = SP_CSS_UNIT_PX;
+ } else {
+ // Mixture of relative units
+ style_res->line_height.unit = SP_CSS_UNIT_PERCENT;
+ }
+ if (lineheight_unit_absolute && lineheight_unit_proportional) {
+ // Mixed types of units, fallback to default
+ style_res->line_height.computed = Inkscape::Text::Layout::LINE_HEIGHT_NORMAL * 100.0;
+ style_res->line_height.value = Inkscape::Text::Layout::LINE_HEIGHT_NORMAL * 100.0;
+ }
+ } else {
+ // Same units.
+ if (lineheight_unit_prev != -1) {
+ style_res->line_height.unit = lineheight_unit_prev;
+ } else {
+ // No text object... use default.
+ style_res->line_height.unit = SP_CSS_UNIT_NONE;
+ style_res->line_height.computed = Inkscape::Text::Layout::LINE_HEIGHT_NORMAL;
+ style_res->line_height.value = Inkscape::Text::Layout::LINE_HEIGHT_NORMAL;
+ }
+ }
+
+ // Used by text toolbar unset 'line-height'
+ style_res->line_height.set = lineheight_set;
+
+ if (texts > 1) {
+ if (different || different_lineheight) {
+ return QUERY_STYLE_MULTIPLE_AVERAGED;
+ } else {
+ return QUERY_STYLE_MULTIPLE_SAME;
+ }
+ } else {
+ return QUERY_STYLE_SINGLE;
+ }
+}
+
+/**
+ * Write to style_res the average font style of objects.
+ */
+int
+objects_query_fontstyle (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ bool different = false;
+ bool set = false;
+
+ int texts = 0;
+
+ for (auto obj : objects) {
+ if (!isTextualItem(obj)) {
+ continue;
+ }
+
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ texts ++;
+
+ if (set &&
+ ( ( style_res->font_weight.computed != style->font_weight.computed ) ||
+ ( style_res->font_style.computed != style->font_style.computed ) ||
+ ( style_res->font_stretch.computed != style->font_stretch.computed ) ||
+ ( style_res->font_variant.computed != style->font_variant.computed ) ||
+ ( style_res->font_variation_settings != style->font_variation_settings ) ) ) {
+ different = true; // different styles
+ }
+
+ set = true;
+ style_res->font_weight.value = style_res->font_weight.computed = style->font_weight.computed;
+ style_res->font_style.value = style_res->font_style.computed = style->font_style.computed;
+ style_res->font_stretch.value = style_res->font_stretch.computed = style->font_stretch.computed;
+ style_res->font_variant.value = style_res->font_variant.computed = style->font_variant.computed;
+ style_res->font_variation_settings = style->font_variation_settings;
+ style_res->text_align.value = style_res->text_align.computed = style->text_align.computed;
+ style_res->font_size.value = style->font_size.value;
+ style_res->font_size.unit = style->font_size.unit;
+ }
+
+ if (texts == 0 || !set)
+ return QUERY_STYLE_NOTHING;
+
+ if (texts > 1) {
+ if (different) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ } else {
+ return QUERY_STYLE_MULTIPLE_SAME;
+ }
+ } else {
+ return QUERY_STYLE_SINGLE;
+ }
+}
+
+int
+objects_query_fontvariants (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ bool set = false;
+
+ int texts = 0;
+
+ SPILigatures* ligatures_res = &(style_res->font_variant_ligatures);
+ SPINumeric* numeric_res = &(style_res->font_variant_numeric);
+ SPIEastAsian* asian_res = &(style_res->font_variant_east_asian);
+
+ // Stores 'and' of all values
+ ligatures_res->computed = SP_CSS_FONT_VARIANT_LIGATURES_NORMAL;
+ int position_computed = SP_CSS_FONT_VARIANT_POSITION_NORMAL;
+ int caps_computed = SP_CSS_FONT_VARIANT_CAPS_NORMAL;
+ numeric_res->computed = SP_CSS_FONT_VARIANT_NUMERIC_NORMAL;
+ asian_res->computed = SP_CSS_FONT_VARIANT_EAST_ASIAN_NORMAL;
+
+ // Stores only differences
+ ligatures_res->value = 0;
+ int position_value = 0;
+ int caps_value = 0;
+ numeric_res->value = 0;
+ asian_res->value = 0;
+
+ for (auto obj : objects) {
+ if (!isTextualItem(obj)) {
+ continue;
+ }
+
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ texts ++;
+
+ SPILigatures* ligatures_in = &(style->font_variant_ligatures);
+ auto* position_in = &(style->font_variant_position);
+ auto* caps_in = &(style->font_variant_caps);
+ SPINumeric* numeric_in = &(style->font_variant_numeric);
+ SPIEastAsian* asian_in = &(style->font_variant_east_asian);
+
+ // computed stores which bits are on/off, only valid if same between all selected objects.
+ // value stores which bits are different between objects. This is a bit of an abuse of
+ // the values but then we don't need to add new variables to class.
+ if (set) {
+ ligatures_res->value |= (ligatures_res->computed ^ ligatures_in->computed );
+ ligatures_res->computed &= ligatures_in->computed;
+
+ position_value |= (position_computed ^ position_in->computed);
+ position_computed &= position_in->computed;
+
+ caps_value |= (caps_computed ^ caps_in->computed);
+ caps_computed &= caps_in->computed;
+
+ numeric_res->value |= (numeric_res->computed ^ numeric_in->computed );
+ numeric_res->computed &= numeric_in->computed;
+
+ asian_res->value |= (asian_res->computed ^ asian_in->computed );
+ asian_res->computed &= asian_in->computed;
+
+ } else {
+ ligatures_res->computed = ligatures_in->computed;
+ position_computed = position_in->computed;
+ caps_computed = caps_in->computed;
+ numeric_res->computed = numeric_in->computed;
+ asian_res->computed = asian_in->computed;
+ }
+
+ set = true;
+ }
+
+ // violates enum type safety!
+ style_res->font_variant_position.value = static_cast<SPCSSFontVariantPosition>(position_value);
+ style_res->font_variant_position.computed = static_cast<SPCSSFontVariantPosition>(position_computed);
+ style_res->font_variant_caps.value = static_cast<SPCSSFontVariantCaps>(caps_value);
+ style_res->font_variant_caps.computed = static_cast<SPCSSFontVariantCaps>(caps_computed);
+
+ bool different = (style_res->font_variant_ligatures.value != 0 ||
+ position_value != 0 ||
+ caps_value != 0 ||
+ style_res->font_variant_numeric.value != 0 ||
+ style_res->font_variant_east_asian.value != 0);
+
+ if (texts == 0 || !set)
+ return QUERY_STYLE_NOTHING;
+
+ if (texts > 1) {
+ if (different) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ } else {
+ return QUERY_STYLE_MULTIPLE_SAME;
+ }
+ } else {
+ return QUERY_STYLE_SINGLE;
+ }
+}
+
+
+/**
+ * Write to style_res the average writing modes style of objects.
+ */
+int
+objects_query_writing_modes (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ bool different = false;
+ bool set = false;
+
+ int texts = 0;
+
+ for (auto obj : objects) {
+ if (!isTextualItem(obj)) {
+ continue;
+ }
+
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ texts ++;
+
+ if (set &&
+ ( ( style_res->writing_mode.computed != style->writing_mode.computed ) ||
+ ( style_res->direction.computed != style->direction.computed ) ||
+ ( style_res->text_orientation.computed != style->text_orientation.computed ) ) ) {
+ different = true; // different styles
+ }
+
+ set = true;
+ style_res->writing_mode.computed = style->writing_mode.computed;
+ style_res->direction.computed = style->direction.computed;
+ style_res->text_orientation.computed = style->text_orientation.computed;
+ }
+
+ if (texts == 0 || !set)
+ return QUERY_STYLE_NOTHING;
+
+ if (texts > 1) {
+ if (different) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ } else {
+ return QUERY_STYLE_MULTIPLE_SAME;
+ }
+ } else {
+ return QUERY_STYLE_SINGLE;
+ }
+}
+
+int
+objects_query_fontfeaturesettings (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ bool different = false;
+ int texts = 0;
+
+ style_res->font_feature_settings.clear();
+
+ for (auto obj : objects) {
+ // std::cout << " " << reinterpret_cast<SPObject*>(i->data)->getId() << std::endl;
+ if (!isTextualItem(obj)) {
+ continue;
+ }
+
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ texts ++;
+
+ if (style_res->font_feature_settings.set && //
+ strcmp(style_res->font_feature_settings.value(),
+ style->font_feature_settings.value())) {
+ different = true; // different fonts
+ }
+
+ style_res->font_feature_settings = style->font_feature_settings;
+ style_res->font_feature_settings.set = true;
+ }
+
+ if (texts == 0 || !style_res->font_feature_settings.set) {
+ return QUERY_STYLE_NOTHING;
+ }
+
+ if (texts > 1) {
+ if (different) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ } else {
+ return QUERY_STYLE_MULTIPLE_SAME;
+ }
+ } else {
+ return QUERY_STYLE_SINGLE;
+ }
+}
+
+
+/**
+ * Write to style_res the baseline numbers.
+ */
+static int
+objects_query_baselines (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ bool different = false;
+
+ // Only baseline-shift at the moment
+ // We will return:
+ // If baseline-shift is same for all objects:
+ // The full baseline-shift data (used for subscripts and superscripts)
+ // If baseline-shift is different:
+ // The average baseline-shift (not implemented at the moment as this is complicated June 2010)
+ SPIBaselineShift old;
+ old.value = 0.0;
+ old.computed = 0.0;
+
+ // double baselineshift = 0.0;
+ bool set = false;
+
+ int texts = 0;
+
+ for (auto obj : objects) {
+ if (!isTextualItem(obj)) {
+ continue;
+ }
+
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ texts ++;
+
+ SPIBaselineShift current;
+ if(style->baseline_shift.set) {
+
+ current.set = style->baseline_shift.set;
+ current.inherit = style->baseline_shift.inherit;
+ current.type = style->baseline_shift.type;
+ current.literal = style->baseline_shift.literal;
+ current.value = style->baseline_shift.value;
+ current.computed = style->baseline_shift.computed;
+
+ if( set ) {
+ if( current.set != old.set ||
+ current.inherit != old.inherit ||
+ current.type != old.type ||
+ current.literal != old.literal ||
+ current.value != old.value ||
+ current.computed != old.computed ) {
+ // Maybe this needs to be better thought out.
+ different = true;
+ }
+ }
+
+ set = true;
+
+ old.set = current.set;
+ old.inherit = current.inherit;
+ old.type = current.type;
+ old.literal = current.literal;
+ old.value = current.value;
+ old.computed = current.computed;
+ }
+ }
+
+ if (different || !set ) {
+ style_res->baseline_shift.set = false;
+ style_res->baseline_shift.computed = 0.0;
+ } else {
+ style_res->baseline_shift.set = old.set;
+ style_res->baseline_shift.inherit = old.inherit;
+ style_res->baseline_shift.type = old.type;
+ style_res->baseline_shift.literal = old.literal;
+ style_res->baseline_shift.value = old.value;
+ style_res->baseline_shift.computed = old.computed;
+ }
+
+ if (texts == 0 || !set)
+ return QUERY_STYLE_NOTHING;
+
+ if (texts > 1) {
+ if (different) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ } else {
+ return QUERY_STYLE_MULTIPLE_SAME;
+ }
+ } else {
+ return QUERY_STYLE_SINGLE;
+ }
+}
+
+/**
+ * Write to style_res the average font family of objects.
+ */
+int
+objects_query_fontfamily (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ bool different = false;
+ int texts = 0;
+
+ style_res->font_family.clear();
+
+ for (auto obj : objects) {
+ // std::cout << " " << reinterpret_cast<SPObject*>(i->data)->getId() << std::endl;
+ if (!isTextualItem(obj)) {
+ continue;
+ }
+
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ texts ++;
+
+ if (style_res->font_family.set && //
+ strcmp(style_res->font_family.value(), style->font_family.value())) {
+ different = true; // different fonts
+ }
+
+ style_res->font_family = style->font_family;
+ style_res->font_family.set = true;
+ }
+
+ if (texts == 0 || !style_res->font_family.set) {
+ return QUERY_STYLE_NOTHING;
+ }
+
+ if (texts > 1) {
+ if (different) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ } else {
+ return QUERY_STYLE_MULTIPLE_SAME;
+ }
+ } else {
+ return QUERY_STYLE_SINGLE;
+ }
+}
+
+static int
+objects_query_fontspecification (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ bool different = false;
+ int texts = 0;
+
+ style_res->font_specification.clear();
+
+ for (auto obj : objects) {
+ // std::cout << " " << reinterpret_cast<SPObject*>(i->data)->getId() << std::endl;
+ if (!isTextualItem(obj)) {
+ continue;
+ }
+
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+
+ texts ++;
+
+ if (style_res->font_specification.set &&
+ g_strcmp0(style_res->font_specification.value(), style->font_specification.value())) {
+ different = true; // different fonts
+ }
+
+ if (style->font_specification.set) {
+ style_res->font_specification = style->font_specification;
+ style_res->font_specification.set = true;
+ }
+ }
+
+ if (texts == 0) {
+ return QUERY_STYLE_NOTHING;
+ }
+
+ if (texts > 1) {
+ if (different) {
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ } else {
+ return QUERY_STYLE_MULTIPLE_SAME;
+ }
+ } else {
+ return QUERY_STYLE_SINGLE;
+ }
+}
+
+int
+objects_query_blend (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ auto blend = SP_CSS_BLEND_NORMAL;
+ auto blend_prev = blend;
+ bool same_blend = true;
+ guint items = 0;
+
+ for (auto obj : objects) {
+ if (!obj) {
+ continue;
+ }
+ SPStyle *style = obj->style;
+ if (!style || !dynamic_cast<SPItem *>(obj)) {
+ continue;
+ }
+
+ items++;
+
+ if (style->mix_blend_mode.set) {
+ blend = style->mix_blend_mode.value;
+ }
+ // defaults to blend mode = "normal"
+ else {
+ if (style->filter.set && style->getFilter()) {
+ blend = filter_get_legacy_blend(obj);
+ } else {
+ blend = SP_CSS_BLEND_NORMAL;
+ }
+ }
+
+ if (items > 1 && blend_prev != blend)
+ same_blend = false;
+ blend_prev = blend;
+ }
+
+ if (items > 0) {
+ style_res->mix_blend_mode.value = blend;
+ }
+
+ if (items == 0) {
+ return QUERY_STYLE_NOTHING;
+ } else if (items == 1) {
+ return QUERY_STYLE_SINGLE;
+ } else {
+ if(same_blend)
+ return QUERY_STYLE_MULTIPLE_SAME;
+ else
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ }
+}
+
+int objects_query_isolation(const std::vector<SPItem *> &objects, SPStyle *style_res)
+{
+ auto isolation = SP_CSS_ISOLATION_AUTO;
+ auto isolation_prev = isolation;
+ bool same_isolation = true;
+ guint items = 0;
+
+ for (auto obj : objects) {
+ if (!obj) {
+ continue;
+ }
+ SPStyle *style = obj->style;
+ if (!style || !dynamic_cast<SPItem *>(obj)) {
+ continue;
+ }
+
+ items++;
+
+ if (style->isolation.set) {
+ isolation = style->isolation.value;
+ }
+ else {
+ isolation = SP_CSS_ISOLATION_AUTO;
+ }
+
+ if (items > 1 && isolation_prev != isolation)
+ same_isolation = false;
+ isolation_prev = isolation;
+ }
+
+ if (items > 0) {
+ style_res->isolation.value = isolation;
+ }
+
+ if (items == 0) {
+ return QUERY_STYLE_NOTHING;
+ } else if (items == 1) {
+ return QUERY_STYLE_SINGLE;
+ } else {
+ if (same_isolation)
+ return QUERY_STYLE_MULTIPLE_SAME;
+ else
+ return QUERY_STYLE_MULTIPLE_DIFFERENT;
+ }
+}
+
+/**
+ * Write to style_res the average blurring of a list of objects.
+ */
+int
+objects_query_blur (const std::vector<SPItem*> &objects, SPStyle *style_res)
+{
+ if (objects.empty()) {
+ /* No objects, set empty */
+ return QUERY_STYLE_NOTHING;
+ }
+
+ float blur_sum = 0;
+ float blur_prev = -1;
+ bool same_blur = true;
+ guint blur_items = 0;
+ guint items = 0;
+
+ for (auto obj : objects) {
+ if (!obj) {
+ continue;
+ }
+ SPStyle *style = obj->style;
+ if (!style) {
+ continue;
+ }
+ SPItem *item = dynamic_cast<SPItem *>(obj);
+ if (!item) {
+ continue;
+ }
+
+ Geom::Affine i2d = item->i2dt_affine();
+
+ items ++;
+
+ //if object has a filter
+ if (style->filter.set && style->getFilter()) {
+ //cycle through filter primitives
+ for(auto& primitive_obj: style->getFilter()->children) {
+ SPFilterPrimitive *primitive = dynamic_cast<SPFilterPrimitive *>(&primitive_obj);
+ if (primitive) {
+
+ //if primitive is gaussianblur
+ SPGaussianBlur * spblur = dynamic_cast<SPGaussianBlur *>(primitive);
+ if (spblur) {
+ float num = spblur->stdDeviation.getNumber();
+ float dummy = num * i2d.descrim();
+ if (!std::isnan(dummy)) {
+ blur_sum += dummy;
+ if (blur_prev != -1 && fabs (num - blur_prev) > 1e-2) // rather low tolerance because difference in blur radii is much harder to notice than e.g. difference in sizes
+ same_blur = false;
+ blur_prev = num;
+ //TODO: deal with opt number, for the moment it's not necessary to the ui.
+ blur_items ++;
+ }
+ }
+ }
+ }
+ }
+ }
+
+ if (items > 0) {
+ if (blur_items > 0)
+ blur_sum /= blur_items;
+ style_res->filter_gaussianBlur_deviation.value = blur_sum;
+ }
+
+ if (items == 0) {
+ return QUERY_STYLE_NOTHING;
+ } else if (items == 1) {
+ return QUERY_STYLE_SINGLE;
+ } else {
+ if (same_blur)
+ return QUERY_STYLE_MULTIPLE_SAME;
+ else
+ return QUERY_STYLE_MULTIPLE_AVERAGED;
+ }
+}
+
+/**
+ * Query the given list of objects for the given property, write
+ * the result to style, return appropriate flag.
+ */
+int
+sp_desktop_query_style_from_list (const std::vector<SPItem*> &list, SPStyle *style, int property)
+{
+ if (property == QUERY_STYLE_PROPERTY_FILL) {
+ return objects_query_fillstroke (list, style, true);
+ } else if (property == QUERY_STYLE_PROPERTY_STROKE) {
+ return objects_query_fillstroke (list, style, false);
+
+ } else if (property == QUERY_STYLE_PROPERTY_STROKEWIDTH) {
+ return objects_query_strokewidth (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_STROKEMITERLIMIT) {
+ return objects_query_miterlimit (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_STROKECAP) {
+ return objects_query_strokecap (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_STROKEJOIN) {
+ return objects_query_strokejoin (list, style);
+
+ } else if (property == QUERY_STYLE_PROPERTY_PAINTORDER) {
+ return objects_query_paintorder (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_MASTEROPACITY) {
+ return objects_query_opacity (list, style);
+
+ } else if (property == QUERY_STYLE_PROPERTY_FONT_SPECIFICATION) {
+ return objects_query_fontspecification (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_FONTFAMILY) {
+ return objects_query_fontfamily (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_FONTSTYLE) {
+ return objects_query_fontstyle (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_FONTVARIANTS) {
+ return objects_query_fontvariants (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_FONTFEATURESETTINGS) {
+ return objects_query_fontfeaturesettings (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_FONTNUMBERS) {
+ return objects_query_fontnumbers (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_WRITINGMODES) {
+ return objects_query_writing_modes (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_BASELINES) {
+ return objects_query_baselines (list, style);
+
+ } else if (property == QUERY_STYLE_PROPERTY_BLEND) {
+ return objects_query_blend (list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_ISOLATION) {
+ return objects_query_isolation(list, style);
+ } else if (property == QUERY_STYLE_PROPERTY_BLUR) {
+ return objects_query_blur (list, style);
+ }
+ return QUERY_STYLE_NOTHING;
+}
+
+
+/**
+ * Query the subselection (if any) or selection on the given desktop for the given property, write
+ * the result to style, return appropriate flag.
+ */
+int
+sp_desktop_query_style(SPDesktop *desktop, SPStyle *style, int property)
+{
+ // Used by text tool and in gradient dragging. See connectQueryStyle.
+ int ret = desktop->_query_style_signal.emit(style, property);
+
+ if (ret != QUERY_STYLE_NOTHING)
+ return ret; // subselection returned a style, pass it on
+
+ // otherwise, do querying and averaging over selection
+ if (desktop->selection != nullptr) {
+ std::vector<SPItem *> vec(desktop->selection->items().begin(), desktop->selection->items().end());
+ return sp_desktop_query_style_from_list (vec, style, property);
+ }
+
+ return QUERY_STYLE_NOTHING;
+}
+
+/**
+ * Do the same as sp_desktop_query_style for all (defined) style properties, return true if at
+ * least one of the properties did not return QUERY_STYLE_NOTHING.
+ */
+bool
+sp_desktop_query_style_all (SPDesktop *desktop, SPStyle *query)
+{
+ int result_family = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_FONTFAMILY);
+ int result_fstyle = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_FONTSTYLE);
+ int result_fnumbers = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_FONTNUMBERS);
+ int result_fill = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_FILL);
+ int result_stroke = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_STROKE);
+ int result_strokewidth = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_STROKEWIDTH);
+ int result_strokemiterlimit = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_STROKEMITERLIMIT);
+ int result_strokecap = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_STROKECAP);
+ int result_strokejoin = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_STROKEJOIN);
+
+ int result_paintorder = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_PAINTORDER);
+
+ int result_opacity = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_MASTEROPACITY);
+ int result_blur = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_BLUR);
+ int result_blend = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_BLEND);
+ int result_isolation = sp_desktop_query_style (desktop, query, QUERY_STYLE_PROPERTY_ISOLATION);
+
+ return (result_family != QUERY_STYLE_NOTHING ||
+ result_fstyle != QUERY_STYLE_NOTHING ||
+ result_fnumbers != QUERY_STYLE_NOTHING ||
+ result_fill != QUERY_STYLE_NOTHING ||
+ result_stroke != QUERY_STYLE_NOTHING ||
+ result_opacity != QUERY_STYLE_NOTHING ||
+ result_strokewidth != QUERY_STYLE_NOTHING ||
+ result_strokemiterlimit != QUERY_STYLE_NOTHING ||
+ result_strokecap != QUERY_STYLE_NOTHING ||
+ result_strokejoin != QUERY_STYLE_NOTHING ||
+ result_paintorder != QUERY_STYLE_NOTHING ||
+ result_blur != QUERY_STYLE_NOTHING ||
+ result_isolation != QUERY_STYLE_NOTHING ||
+ result_blend != QUERY_STYLE_NOTHING);
+}
+
+
+/*
+ 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 :