stroke-style.cpp revision c42ca006cc2593efa9a0ea19f2680ea9d5792654
/* 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, read the file 'COPYING' for more information
*/
#define noSP_SS_VERBOSE
#include "stroke-style.h"
#include "../gradient-chemistry.h"
#include "sp-gradient.h"
#include "sp-stop.h"
#include "svg/svg-color.h"
#include "util/units.h"
#include "ui/widget/unit-menu.h"
#include "desktop-widget.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(void)
{
return Inkscape::Widgets::createStyleWidget( STROKE );
}
/**
* Creates a new widget for the line stroke style.
*/
Gtk::Widget *sp_stroke_style_line_widget_new(void)
{
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 NULL;
}
p++;
int c = 0;
while (p[c] != '\0' && p[c] != ')') {
c++;
}
if (p[c] == '\0') {
return NULL;
}
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);
Gtk::Widget *px = Gtk::manage(Glib::wrap(sp_icon_new(Inkscape::ICON_SIZE_LARGE_TOOLBAR, icon)));
g_assert(px != NULL);
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::VBox(),
miterLimitSpin(),
widthSpin(),
unitSelector(),
joinMiter(),
joinRound(),
joinBevel(),
capButt(),
capRound(),
capSquare(),
dashSelector(),
update(false),
desktop(0),
selectChangedConn(),
selectModifiedConn(),
startMarkerConn(),
midMarkerConn(),
endMarkerConn(),
_old_unit(NULL)
{
Gtk::HBox *hb;
Gtk::HBox *f = new Gtk::HBox(false, 0);
f->show();
add(*f);
#if WITH_GTKMM_3_0
table = new Gtk::Grid();
table->set_border_width(4);
table->set_row_spacing(4);
#else
table = new Gtk::Table(3, 6, false);
table->set_border_width(4);
table->set_row_spacings(4);
#endif
table->show();
f->add(*table);
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.
#if WITH_GTKMM_3_0
widthAdj = new Glib::RefPtr<Gtk::Adjustment>(Gtk::Adjustment::create(1.0, 0.0, 1000.0, 0.1, 10.0, 0.0));
#else
widthAdj = new Gtk::Adjustment(1.0, 0.0, 1000.0, 0.1, 10.0, 0.0);
#endif
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(sp_desktop_namedview(desktop)->doc_units->abbr);
_old_unit = sp_desktop_namedview(desktop)->doc_units;
}
widthSpin->setUnitMenu(unitSelector);
unitChangedConn = unitSelector->signal_changed().connect(sigc::mem_fun(*this, &StrokeStyle::unitChangedCB));
us->show();
hb->pack_start(*us, FALSE, FALSE, 0);
#if WITH_GTKMM_3_0
(*widthAdj)->signal_value_changed().connect(sigc::mem_fun(*this, &StrokeStyle::widthChangedCB));
#else
widthAdj->signal_value_changed().connect(sigc::mem_fun(*this, &StrokeStyle::widthChangedCB));
#endif
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, NULL);
hb = spw_hbox(table, 3, 1, i);
Gtk::RadioButtonGroup joinGrp;
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"));
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"));
i++;
/* 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);
hb = spw_hbox(table, 3, 1, i);
#if WITH_GTKMM_3_0
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);
#else
miterLimitAdj = new Gtk::Adjustment(4.0, 0.0, 100.0, 0.1, 10.0, 0.0);
miterLimitSpin = new Inkscape::UI::Widget::SpinButton(*miterLimitAdj, 0.1, 2);
#endif
miterLimitSpin->set_tooltip_text(_("Maximum length of the miter (in units of stroke width)"));
miterLimitSpin->show();
spw_label(table, _("Miter _limit:"), 0, i, miterLimitSpin);
sp_dialog_defocus_on_enter_cpp(miterLimitSpin);
hb->pack_start(*miterLimitSpin, false, false, 0);
#if WITH_GTKMM_3_0
(*miterLimitAdj)->signal_value_changed().connect(sigc::mem_fun(*this, &StrokeStyle::miterLimitChangedCB));
#else
miterLimitAdj->signal_value_changed().connect(sigc::mem_fun(*this, &StrokeStyle::miterLimitChangedCB));
#endif
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, NULL);
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++;
/* Dash */
spw_label(table, _("Dashes:"), 0, i, NULL); //no mnemonic for now
//decide what to do:
// implement a set_mnemonic_source function in the
// SPDashSelector class, so that we do not have to
// expose any of the underlying widgets?
dashSelector = Gtk::manage(new SPDashSelector);
dashSelector->show();
#if WITH_GTKMM_3_0
dashSelector->set_hexpand();
dashSelector->set_halign(Gtk::ALIGN_FILL);
dashSelector->set_valign(Gtk::ALIGN_CENTER);
table->attach(*dashSelector, 1, i, 3, 1);
#else
table->attach(*dashSelector, 1, 4, i, i+1, (Gtk::EXPAND | Gtk::FILL), static_cast<Gtk::AttachOptions>(0), 0, 0);
#endif
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, NULL);
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);
setDesktop(desktop);
updateLine();
}
StrokeStyle::~StrokeStyle()
{
selectModifiedConn.disconnect();
selectChangedConn.disconnect();
}
void StrokeStyle::setDesktop(SPDesktop *desktop)
{
if (this->desktop != desktop) {
if (this->desktop) {
selectModifiedConn.disconnect();
selectChangedConn.disconnect();
}
this->desktop = desktop;
if (desktop && 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)));
}
updateLine();
}
}
/**
* 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 != NULL);
g_assert(hb != NULL);
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;
}
/**
* 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) {
return;
}
spw->update = true;
SPDocument *document = sp_desktop_document(spw->desktop);
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 ? sp_desktop_selection(desktop) : NULL);
//spw->updateMarkerHist(which);
Inkscape::Selection *selection = sp_desktop_selection(spw->desktop);
GSList const *items = selection->itemList();
for (; items != NULL; items = items->next) {
SPItem *item = reinterpret_cast<SPItem *>(items->data);
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 = 0;
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)
{
if (flags & (SP_OBJECT_MODIFIED_FLAG | SP_OBJECT_PARENT_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 NULL;
}
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 dont 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[i].set && !strcmp(urlId.c_str(), item->style->marker[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 = 0;
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 = 0;
}
/*
* 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(SPDashSelector *dsel, SPStyle *style)
{
if (!style->stroke_dasharray.values.empty()) {
double d[64];
size_t len = MIN(style->stroke_dasharray.values.size(), 64);
for (unsigned i = 0; i < len; i++) {
if (style->stroke_width.computed != 0)
d[i] = style->stroke_dasharray.values[i] / style->stroke_width.computed;
else
d[i] = style->stroke_dasharray.values[i]; // 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 / style->stroke_width.computed :
style->stroke_dashoffset.value);
} else {
dsel->set_dash(0, NULL, 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 = NULL;
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:
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 = NULL;
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:
break;
}
setCapButtons(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 ? sp_desktop_selection(desktop) : NULL;
FillOrStroke kind = GPOINTER_TO_INT(get_data("kind")) ? FILL : STROKE;
// create temporary style
SPStyle *query = sp_style_new (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);
SPIPaint &targPaint = (kind == FILL) ? query->fill : query->stroke;
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_desktop_namedview(SP_ACTIVE_DESKTOP)->doc_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);
#if WITH_GTKMM_3_0
(*widthAdj)->set_value(avgwidth);
#else
widthAdj->set_value(avgwidth);
#endif
} else {
#if WITH_GTKMM_3_0
(*widthAdj)->set_value(100);
#else
widthAdj->set_value(100);
#endif
}
// 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)
#if WITH_GTKMM_3_0
(*miterLimitAdj)->set_value(query->stroke_miterlimit.value); // TODO: reflect averagedness?
#else
miterLimitAdj->set_value(query->stroke_miterlimit.value); // TODO: reflect averagedness?
#endif
if (result_join != QUERY_STYLE_MULTIPLE_DIFFERENT) {
setJoinType(query->stroke_linejoin.value);
} else {
setJoinButtons(NULL);
}
if (result_cap != QUERY_STYLE_MULTIPLE_DIFFERENT) {
setCapType (query->stroke_linecap.value);
} else {
setCapButtons(NULL);
}
sp_style_unref(query);
if (!sel || sel->isEmpty())
return;
GSList const *objects = sel->itemList();
SPObject * const object = SP_OBJECT(objects->data);
SPStyle * const style = object->style;
/* Markers */
updateAllMarkers(objects); // 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", NULL);
}
}
/**
* Sets line properties like width, dashes, markers, etc. on all currently selected items.
*/
void
StrokeStyle::scaleLine()
{
if (update) {
return;
}
update = true;
SPDocument *document = sp_desktop_document (desktop);
Inkscape::Selection *selection = sp_desktop_selection (desktop);
GSList const *items = selection->itemList();
/* TODO: Create some standardized method */
SPCSSAttr *css = sp_repr_css_attr_new();
if (items) {
#if WITH_GTKMM_3_0
double width_typed = (*widthAdj)->get_value();
double const miterlimit = (*miterLimitAdj)->get_value();
#else
double width_typed = widthAdj->get_value();
double const miterlimit = miterLimitAdj->get_value();
#endif
Inkscape::Util::Unit const *const unit = unitSelector->getUnit();
double *dash, offset;
int ndash;
dashSelector->get_dash(&ndash, &dash, &offset);
for (GSList const *i = items; i != NULL; i = i->next) {
/* Set stroke width */
double width;
if (unit->type == Inkscape::Util::UNIT_TYPE_LINEAR) {
width = Inkscape::Util::Quantity::convert(width_typed, unit, "px");
} else { // percentage
gdouble old_w = SP_OBJECT(i->data)->style->stroke_width.computed;
width = old_w * width_typed / 100;
}
{
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 */
setScaledDash(css, ndash, dash, offset, width);
sp_desktop_apply_css_recursive (SP_OBJECT(i->data), css, true);
}
g_free(dash);
if (unit->type != Inkscape::Util::UNIT_TYPE_LINEAR) {
// reset to 100 percent
#if WITH_GTKMM_3_0
(*widthAdj)->set_value(100.0);
#else
widthAdj->set_value(100.0);
#endif
}
}
// 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 = 0;
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);
}
sp_repr_css_attr_unref(css);
css = 0;
DocumentUndo::done(sp_desktop_document(spw->desktop), 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 marker combobox to highlight the appropriate marker and scroll to
* that marker.
*/
void
StrokeStyle::updateAllMarkers(GSList const *objects)
{
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;
for (GSList *i = (GSList *) objects; i != NULL; i = i->next) {
if (!SP_IS_TEXT (i->data)) {
all_texts = false;
}
}
for (unsigned i = 0; i < G_N_ELEMENTS(keyloc); ++i) {
MarkerComboBox *combo = static_cast<MarkerComboBox *>(keyloc[i].key);
// Per SVG spec, text objects cannot have markers; disable combobox if only texts are selected
combo->set_sensitive(!all_texts);
}
// We show markers of the first object in the list only
// FIXME: use the first in the list that has the marker of each type, if any
SPObject *object = SP_OBJECT(objects->data);
for (unsigned i = 0; i < G_N_ELEMENTS(keyloc); ++i) {
// For all three marker types,
// find the corresponding combobox item
MarkerComboBox *combo = static_cast<MarkerComboBox *>(keyloc[i].key);
// Quit if we're in update state
if (combo->update()) {
return;
}
combo->setDesktop(desktop);
if (object->style->marker[keyloc[i].loc].value != NULL && !all_texts) {
// If the object has this type of markers,
// Extract the name of the marker that the object uses
SPObject *marker = getMarkerObj(object->style->marker[keyloc[i].loc].value, object->document);
// Scroll the combobox to that marker
combo->set_current(marker);
// Set the marker color
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
gboolean update = prefs->getBool("/options/markers/colorUpdateMarkers", true);
if (update) {
setMarkerColor(marker, combo->get_loc(), SP_ITEM(object));
SPDocument *document = sp_desktop_document(desktop);
DocumentUndo::done(document, SP_VERB_DIALOG_FILL_STROKE,
_("Set marker color"));
}
} else {
combo->set_current(NULL);
}
}
}
} // 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 :