#ifdef HAVE_CONFIG_H

# include "config.h"

#endif

#include <glibmm.h>

#include "gradient-vector.h"

#include "ui/widget/color-preview.h"

#include "verbs.h"

#include <gtk/gtk.h>

#include "macros.h"

#include <glibmm/i18n.h>

#include <set>

#include "../widgets/gradient-image.h"

#include "../inkscape.h"

#include "../document-private.h"

#include "../gradient-chemistry.h"

#include "../helper/window.h"

#include "io/resource.h"

#include "xml/repr.h"

#include "../preferences.h"

#include "svg/css-ostringstream.h"

#include "sp-stop.h"

#include "selection-chemistry.h"

#include "style.h"

#include "sp-linear-gradient.h"

#include "sp-radial-gradient.h"

#include "desktop.h"

#include "layer-manager.h"

#include <sigc++/functors/ptr_fun.h>

#include <sigc++/adaptors/bind.h>

#include "document-undo.h"

#include "ui/dialog-events.h"

#include "ui/selected-color.h"

#include "ui/widget/color-notebook.h"

using Inkscape::DocumentUndo;

using Inkscape::UI::SelectedColor;

enum {

VECTOR_SET,

LAST_SIGNAL

};

#if GTK_CHECK_VERSION(3,0,0)

static void sp_gradient_vector_selector_destroy(GtkWidget *object);

#else

static void sp_gradient_vector_selector_destroy(GtkObject *object);

#endif

static void sp_gvs_gradient_release(SPObject *obj, SPGradientVectorSelector *gvs);

static void sp_gvs_defs_release(SPObject *defs, SPGradientVectorSelector *gvs);

static void sp_gvs_defs_modified(SPObject *defs, guint flags, SPGradientVectorSelector *gvs);

static void sp_gvs_rebuild_gui_full(SPGradientVectorSelector *gvs);

static SPStop *get_selected_stop( GtkWidget *vb);

void gr_get_usage_counts(SPDocument *doc, std::map<SPGradient *, gint> *mapUsageCount );

unsigned long sp_gradient_to_hhssll(SPGradient *gr);

static guint signals[LAST_SIGNAL] = {0};

static GtkWidget *dlg = NULL;

static win_data wd;

static gint x = -1000, y = -1000, w = 0, h = 0; // impossible original values to make sure they are read from prefs

static Glib::ustring const prefs_path = "/dialogs/gradienteditor/";

#if GTK_CHECK_VERSION(3,0,0)

G_DEFINE_TYPE(SPGradientVectorSelector, sp_gradient_vector_selector, GTK_TYPE_BOX);

#else

G_DEFINE_TYPE(SPGradientVectorSelector, sp_gradient_vector_selector, GTK_TYPE_VBOX);

#endif

static void sp_gradient_vector_selector_class_init(SPGradientVectorSelectorClass *klass)

{

GObjectClass *gobject_class = G_OBJECT_CLASS(klass);

signals[VECTOR_SET] = g_signal_new( "vector_set",

G_TYPE_FROM_CLASS(gobject_class),

G_SIGNAL_RUN_LAST,

G_STRUCT_OFFSET(SPGradientVectorSelectorClass, vector_set),

NULL, NULL,

g_cclosure_marshal_VOID__POINTER,

G_TYPE_NONE, 1,

G_TYPE_POINTER);

#if GTK_CHECK_VERSION(3,0,0)

GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(klass);

widget_class->destroy = sp_gradient_vector_selector_destroy;

#else

GtkObjectClass *object_class = GTK_OBJECT_CLASS(klass);

object_class->destroy = sp_gradient_vector_selector_destroy;

#endif

}

static void sp_gradient_vector_selector_init(SPGradientVectorSelector *gvs)

{

#if GTK_CHECK_VERSION(3,0,0)

gtk_orientable_set_orientation(GTK_ORIENTABLE(gvs), GTK_ORIENTATION_VERTICAL);

#endif

gvs->idlabel = TRUE;

gvs->swatched = false;

gvs->doc = NULL;

gvs->gr = NULL;

new (&gvs->gradient_release_connection) sigc::connection();

new (&gvs->defs_release_connection) sigc::connection();

new (&gvs->defs_modified_connection) sigc::connection();

gvs->columns = new SPGradientSelector::ModelColumns();

gvs->store = Gtk::ListStore::create(*gvs->columns);

new (&gvs->tree_select_connection) sigc::connection();

}

#if GTK_CHECK_VERSION(3,0,0)

static void sp_gradient_vector_selector_destroy(GtkWidget *object)

#else

static void sp_gradient_vector_selector_destroy(GtkObject *object)

#endif

{

SPGradientVectorSelector *gvs = SP_GRADIENT_VECTOR_SELECTOR(object);

if (gvs->gr) {

gvs->gradient_release_connection.disconnect();

gvs->tree_select_connection.disconnect();

gvs->gr = NULL;

}

if (gvs->doc) {

gvs->defs_release_connection.disconnect();

gvs->defs_modified_connection.disconnect();

gvs->doc = NULL;

}

gvs->gradient_release_connection.~connection();

gvs->defs_release_connection.~connection();

gvs->defs_modified_connection.~connection();

gvs->tree_select_connection.~connection();

#if GTK_CHECK_VERSION(3,0,0)

if ((GTK_WIDGET_CLASS(sp_gradient_vector_selector_parent_class))->destroy) {

(GTK_WIDGET_CLASS(sp_gradient_vector_selector_parent_class))->destroy(object);

}

#else

if ((GTK_OBJECT_CLASS(sp_gradient_vector_selector_parent_class))->destroy) {

(GTK_OBJECT_CLASS(sp_gradient_vector_selector_parent_class))->destroy(object);

}

#endif

}

GtkWidget *sp_gradient_vector_selector_new(SPDocument *doc, SPGradient *gr)

{

GtkWidget *gvs;

g_return_val_if_fail(!gr || SP_IS_GRADIENT(gr), NULL);

g_return_val_if_fail(!gr || (gr->document == doc), NULL);

gvs = static_cast<GtkWidget*>(g_object_new(SP_TYPE_GRADIENT_VECTOR_SELECTOR, NULL));

if (doc) {

sp_gradient_vector_selector_set_gradient(SP_GRADIENT_VECTOR_SELECTOR(gvs), doc, gr);

} else {

sp_gvs_rebuild_gui_full(SP_GRADIENT_VECTOR_SELECTOR(gvs));

}

return gvs;

}

void sp_gradient_vector_selector_set_gradient(SPGradientVectorSelector *gvs, SPDocument *doc, SPGradient *gr)

{

static gboolean suppress = FALSE;

g_return_if_fail(gvs != NULL);

g_return_if_fail(SP_IS_GRADIENT_VECTOR_SELECTOR(gvs));

g_return_if_fail(!gr || (doc != NULL));

g_return_if_fail(!gr || SP_IS_GRADIENT(gr));

g_return_if_fail(!gr || (gr->document == doc));

g_return_if_fail(!gr || gr->hasStops());

if (doc != gvs->doc) {

/* Disconnect signals */

if (gvs->gr) {

gvs->gradient_release_connection.disconnect();

gvs->gr = NULL;

}

if (gvs->doc) {

gvs->defs_release_connection.disconnect();

gvs->defs_modified_connection.disconnect();

gvs->doc = NULL;

}

// Connect signals

if (doc) {

gvs->defs_release_connection = doc->getDefs()->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_gvs_defs_release), gvs));

gvs->defs_modified_connection = doc->getDefs()->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_gvs_defs_modified), gvs));

}

if (gr) {

gvs->gradient_release_connection = gr->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_gvs_gradient_release), gvs));

}

gvs->doc = doc;

gvs->gr = gr;

sp_gvs_rebuild_gui_full(gvs);

if (!suppress) g_signal_emit(G_OBJECT(gvs), signals[VECTOR_SET], 0, gr);

} else if (gr != gvs->gr) {

// Harder case - keep document, rebuild list and stuff

// fixme: (Lauris)

suppress = TRUE;

sp_gradient_vector_selector_set_gradient(gvs, NULL, NULL);

sp_gradient_vector_selector_set_gradient(gvs, doc, gr);

suppress = FALSE;

g_signal_emit(G_OBJECT(gvs), signals[VECTOR_SET], 0, gr);

}

/* The case of setting NULL -> NULL is not very interesting */

}

SPDocument *sp_gradient_vector_selector_get_document(SPGradientVectorSelector *gvs)

{

g_return_val_if_fail(gvs != NULL, NULL);

g_return_val_if_fail(SP_IS_GRADIENT_VECTOR_SELECTOR(gvs), NULL);

return gvs->doc;

}

SPGradient *sp_gradient_vector_selector_get_gradient(SPGradientVectorSelector *gvs)

{

g_return_val_if_fail(gvs != NULL, NULL);

g_return_val_if_fail(SP_IS_GRADIENT_VECTOR_SELECTOR(gvs), NULL);

return gvs->gr;

}

Glib::ustring gr_prepare_label (SPObject *obj)

{

const gchar *id = obj->label() ? obj->label() : obj->getId();

if (!id) {

id = obj->getRepr()->name();

}

if (strlen(id) > 14 && (!strncmp (id, "linearGradient", 14) || !strncmp (id, "radialGradient", 14)))

return gr_ellipsize_text (g_strdup_printf ("%s", id+14), 35);

return gr_ellipsize_text (id, 35);

}

Glib::ustring gr_ellipsize_text(Glib::ustring const &src, size_t maxlen)

{

if (src.length() > maxlen && maxlen > 8) {

size_t p1 = (size_t) maxlen / 2;

size_t p2 = (size_t) src.length() - (maxlen - p1 - 1);

return src.substr(0, p1) + "…" + src.substr(p2);

}

return src;

}

static void sp_gvs_rebuild_gui_full(SPGradientVectorSelector *gvs)

{

gvs->tree_select_connection.block();

/* Clear old list, if there is any */

gvs->store->clear();

/* Pick up all gradients with vectors */

GSList *gl = NULL;

if (gvs->gr) {

std::set<SPObject *> gradients = gvs->gr->document->getResourceList("gradient");

for (std::set<SPObject *>::const_iterator it = gradients.begin(); it != gradients.end(); ++it) {

SPGradient* grad = SP_GRADIENT(*it);

if ( grad->hasStops() && (grad->isSwatch() == gvs->swatched) ) {

gl = g_slist_prepend(gl, *it);

}

}

}

gl = g_slist_reverse(gl);

/* Get usage count of all the gradients */

std::map<SPGradient *, gint> usageCount;

gr_get_usage_counts(gvs->doc, &usageCount);

if (!gvs->doc) {

Gtk::TreeModel::Row row = *(gvs->store->append());

row[gvs->columns->name] = _("No document selected");

} else if (!gl) {

Gtk::TreeModel::Row row = *(gvs->store->append());

row[gvs->columns->name] = _("No gradients in document");

} else if (!gvs->gr) {

Gtk::TreeModel::Row row = *(gvs->store->append());

row[gvs->columns->name] = _("No gradient selected");

} else {

while (gl) {

SPGradient *gr;

gr = SP_GRADIENT(gl->data);

gl = g_slist_remove(gl, gr);

unsigned long hhssll = sp_gradient_to_hhssll(gr);

GdkPixbuf *pixb = sp_gradient_to_pixbuf (gr, 64, 18);

Glib::ustring label = gr_prepare_label(gr);

Gtk::TreeModel::Row row = *(gvs->store->append());

row[gvs->columns->name] = label.c_str();

row[gvs->columns->color] = hhssll;

row[gvs->columns->refcount] = usageCount[gr];

row[gvs->columns->data] = gr;

row[gvs->columns->pixbuf] = Glib::wrap(pixb);

}

}

gvs->tree_select_connection.unblock();

}

unsigned long sp_gradient_to_hhssll(SPGradient *gr)

{

SPStop *stop = gr->getFirstStop();

unsigned long rgba = stop->get_rgba32();

float hsl[3];

sp_color_rgb_to_hsl_floatv (hsl, SP_RGBA32_R_F(rgba), SP_RGBA32_G_F(rgba), SP_RGBA32_B_F(rgba));

return ((int)(hsl[0]*100 * 10000)) + ((int)(hsl[1]*100 * 100)) + ((int)(hsl[2]*100 * 1));

}

static GSList *get_all_doc_items(GSList *list, SPObject *from, bool onlyvisible, bool onlysensitive, bool ingroups, GSList const *exclude)

{

for ( SPObject *child = from->firstChild() ; child; child = child->getNext() ) {

if (SP_IS_ITEM(child)) {

list = g_slist_prepend(list, SP_ITEM(child));

}

if (ingroups || SP_IS_ITEM(child)) {

list = get_all_doc_items(list, child, onlyvisible, onlysensitive, ingroups, exclude);

}

}

return list;

}

static SPGradient * gr_item_get_gradient(SPItem *item, gboolean fillorstroke)

{

SPIPaint *item_paint = (fillorstroke) ? &(item->style->fill) : &(item->style->stroke);

if (item_paint->isPaintserver()) {

SPPaintServer *item_server = (fillorstroke) ?

item->style->getFillPaintServer() : item->style->getStrokePaintServer();

if (SP_IS_LINEARGRADIENT(item_server) || SP_IS_RADIALGRADIENT(item_server) ||

(SP_IS_GRADIENT(item_server) && SP_GRADIENT(item_server)->getVector()->isSwatch())) {

return SP_GRADIENT(item_server)->getVector();

}

}

return NULL;

}

void gr_get_usage_counts(SPDocument *doc, std::map<SPGradient *, gint> *mapUsageCount )

{

if (!doc)

return;

Inkscape::Preferences *prefs = Inkscape::Preferences::get();

bool onlyvisible = prefs->getBool("/options/kbselection/onlyvisible", true);

bool onlysensitive = prefs->getBool("/options/kbselection/onlysensitive", true);

bool ingroups = TRUE;

GSList *all_list = get_all_doc_items(NULL, doc->getRoot(), onlyvisible, onlysensitive, ingroups, NULL);

for (GSList *i = all_list; i != NULL; i = i->next) {

SPItem *item = SP_ITEM(i->data);

if (!item->getId())

continue;

SPGradient *gr = NULL;

gr = gr_item_get_gradient(item, true); // fill

if (gr) {

mapUsageCount->count(gr) > 0 ? (*mapUsageCount)[gr] += 1 : (*mapUsageCount)[gr] = 1;

}

gr = gr_item_get_gradient(item, false); // stroke

if (gr) {

mapUsageCount->count(gr) > 0 ? (*mapUsageCount)[gr] += 1 : (*mapUsageCount)[gr] = 1;

}

}

}

static void sp_gvs_gradient_release(SPObject */*obj*/, SPGradientVectorSelector *gvs)

{

/* Disconnect gradient */

if (gvs->gr) {

gvs->gradient_release_connection.disconnect();

gvs->gr = NULL;

}

/* Rebuild GUI */

sp_gvs_rebuild_gui_full(gvs);

}

static void sp_gvs_defs_release(SPObject */*defs*/, SPGradientVectorSelector *gvs)

{

gvs->doc = NULL;

gvs->defs_release_connection.disconnect();

gvs->defs_modified_connection.disconnect();

/* Disconnect gradient as well */

if (gvs->gr) {

gvs->gradient_release_connection.disconnect();

gvs->gr = NULL;

}

/* Rebuild GUI */

sp_gvs_rebuild_gui_full(gvs);

}

static void sp_gvs_defs_modified(SPObject */*defs*/, guint /*flags*/, SPGradientVectorSelector *gvs)

{

/* fixme: We probably have to check some flags here (Lauris) */

sp_gvs_rebuild_gui_full(gvs);

}

void SPGradientVectorSelector::setSwatched()

{

swatched = true;

sp_gvs_rebuild_gui_full(this);

}

#include "widgets/widget-sizes.h"

#include "xml/node-event-vector.h"

#include "svg/svg-color.h"

#include "ui/widget/color-notebook.h"

#define PAD 4

static GtkWidget *sp_gradient_vector_widget_new(SPGradient *gradient, SPStop *stop);

static void sp_gradient_vector_widget_load_gradient(GtkWidget *widget, SPGradient *gradient);

static gint sp_gradient_vector_dialog_delete(GtkWidget *widget, GdkEvent *event, GtkWidget *dialog);

#if GTK_CHECK_VERSION(3,0,0)

static void sp_gradient_vector_dialog_destroy(GtkWidget *object, gpointer data);

static void sp_gradient_vector_widget_destroy(GtkWidget *object, gpointer data);

#else

static void sp_gradient_vector_dialog_destroy(GtkObject *object, gpointer data);

static void sp_gradient_vector_widget_destroy(GtkObject *object, gpointer data);

#endif

static void sp_gradient_vector_gradient_release(SPObject *obj, GtkWidget *widget);

static void sp_gradient_vector_gradient_modified(SPObject *obj, guint flags, GtkWidget *widget);

static void sp_gradient_vector_color_dragged(Inkscape::UI::SelectedColor *selected_color, GObject *object);

static void sp_gradient_vector_color_changed(Inkscape::UI::SelectedColor *selected_color, GObject *object);

static void update_stop_list( GtkWidget *vb, SPGradient *gradient, SPStop *new_stop);

static gboolean blocked = FALSE;

static void grad_edit_dia_stop_added_or_removed(Inkscape::XML::Node */*repr*/, Inkscape::XML::Node */*child*/, Inkscape::XML::Node */*ref*/, gpointer data)

{

GtkWidget *vb = GTK_WIDGET(data);

SPGradient *gradient = static_cast<SPGradient *>(g_object_get_data(G_OBJECT(vb), "gradient"));

update_stop_list(vb, gradient, NULL);

}

static Inkscape::XML::NodeEventVector grad_edit_dia_repr_events =

{

grad_edit_dia_stop_added_or_removed, /* child_added */

grad_edit_dia_stop_added_or_removed, /* child_removed */

NULL, /* attr_changed*/

NULL, /* content_changed */

NULL /* order_changed */

};

static void verify_grad(SPGradient *gradient)

{

int i = 0;

SPStop *stop = NULL;

/* count stops */

for ( SPObject *ochild = gradient->firstChild() ; ochild ; ochild = ochild->getNext() ) {

if (SP_IS_STOP(ochild)) {

i++;

stop = SP_STOP(ochild);

}

}

Inkscape::XML::Document *xml_doc;

xml_doc = gradient->getRepr()->document();

if (i < 1) {

Inkscape::CSSOStringStream os;

os << "stop-color: #000000;stop-opacity:" << 1.0 << ";";

Inkscape::XML::Node *child;

child = xml_doc->createElement("svg:stop");

sp_repr_set_css_double(child, "offset", 0.0);

child->setAttribute("style", os.str().c_str());

gradient->getRepr()->addChild(child, NULL);

Inkscape::GC::release(child);

child = xml_doc->createElement("svg:stop");

sp_repr_set_css_double(child, "offset", 1.0);

child->setAttribute("style", os.str().c_str());

gradient->getRepr()->addChild(child, NULL);

Inkscape::GC::release(child);

return;

}

if (i < 2) {

sp_repr_set_css_double(stop->getRepr(), "offset", 0.0);

Inkscape::XML::Node *child = stop->getRepr()->duplicate(gradient->getRepr()->document());

sp_repr_set_css_double(child, "offset", 1.0);

gradient->getRepr()->addChild(child, stop->getRepr());

Inkscape::GC::release(child);

}

}

static void select_stop_in_list( GtkWidget *vb, SPGradient *gradient, SPStop *new_stop)

{

GtkWidget *combo_box = static_cast<GtkWidget *>(g_object_get_data(G_OBJECT(vb), "combo_box"));

int i = 0;

for ( SPObject *ochild = gradient->firstChild() ; ochild ; ochild = ochild->getNext() ) {

if (SP_IS_STOP(ochild)) {

if (ochild == new_stop) {

gtk_combo_box_set_active (GTK_COMBO_BOX(combo_box) , i);

break;

}

i++;

}

}

}

static void update_stop_list( GtkWidget *vb, SPGradient *gradient, SPStop *new_stop)

{

if (!SP_IS_GRADIENT(gradient)) {

return;

}

blocked = TRUE;

/* Clear old list, if there is any */

GtkWidget *combo_box = static_cast<GtkWidget *>(g_object_get_data(G_OBJECT(vb), "combo_box"));

if (!combo_box) {

return;

}

GtkListStore *store = GTK_LIST_STORE(gtk_combo_box_get_model(GTK_COMBO_BOX(combo_box)));

if (!store) {

return;

}

gtk_list_store_clear(store);

GtkTreeIter iter;

/* Populate the combobox store */

GSList *sl = NULL;

if ( gradient->hasStops() ) {

for ( SPObject *ochild = gradient->firstChild() ; ochild ; ochild = ochild->getNext() ) {

if (SP_IS_STOP(ochild)) {

sl = g_slist_append(sl, ochild);

}

}

}

if (!sl) {

gtk_list_store_append (store, &iter);

gtk_list_store_set (store, &iter, 0, NULL, 1, _("No stops in gradient"), 2, NULL, -1);

gtk_widget_set_sensitive (combo_box, FALSE);

} else {

for (; sl != NULL; sl = sl->next){

if (SP_IS_STOP(sl->data)){

SPStop *stop = SP_STOP(sl->data);

Inkscape::XML::Node *repr = reinterpret_cast<SPItem *>(sl->data)->getRepr();

Inkscape::UI::Widget::ColorPreview *cpv = Gtk::manage(new Inkscape::UI::Widget::ColorPreview(stop->get_rgba32()));

GdkPixbuf *pb = cpv->toPixbuf(64, 16);

gtk_list_store_append (store, &iter);

gtk_list_store_set (store, &iter, 0, pb, 1, repr->attribute("id"), 2, stop, -1);

gtk_widget_set_sensitive (combo_box, FALSE);

}

}

gtk_widget_set_sensitive(combo_box, TRUE);

}

/* Set history */

if (new_stop == NULL) {

gtk_combo_box_set_active (GTK_COMBO_BOX(combo_box) , 0);

} else {

select_stop_in_list(vb, gradient, new_stop);

}

blocked = FALSE;

}

static void sp_grad_edit_combo_box_changed (GtkComboBox * /*widget*/, GtkWidget *tbl)

{

SPStop *stop = get_selected_stop(tbl);

if (!stop) {

return;

}

blocked = TRUE;

SelectedColor *csel = static_cast<SelectedColor*>(g_object_get_data(G_OBJECT(tbl), "cselector"));

// set its color, from the stored array

g_object_set_data(G_OBJECT(tbl), "updating_color", reinterpret_cast<void*>(1));

csel->setColorAlpha(stop->getEffectiveColor(), stop->opacity);

g_object_set_data(G_OBJECT(tbl), "updating_color", reinterpret_cast<void*>(0));

GtkWidget *offspin = GTK_WIDGET(g_object_get_data(G_OBJECT(tbl), "offspn"));

GtkWidget *offslide =GTK_WIDGET(g_object_get_data(G_OBJECT(tbl), "offslide"));

GtkAdjustment *adj = static_cast<GtkAdjustment*>(g_object_get_data(G_OBJECT(tbl), "offset"));

bool isEndStop = false;

SPStop *prev = NULL;

prev = stop->getPrevStop();

if (prev != NULL ) {

gtk_adjustment_set_lower (adj, prev->offset);

} else {

isEndStop = true;

gtk_adjustment_set_lower (adj, 0);

}

SPStop *next = NULL;

next = stop->getNextStop();

if (next != NULL ) {

gtk_adjustment_set_upper (adj, next->offset);

} else {

isEndStop = true;

gtk_adjustment_set_upper (adj, 1.0);

}

//fixme: does this work on all possible input gradients?

if (!isEndStop) {

gtk_widget_set_sensitive(offslide, TRUE);

gtk_widget_set_sensitive(GTK_WIDGET(offspin), TRUE);

} else {

gtk_widget_set_sensitive(offslide, FALSE);

gtk_widget_set_sensitive(GTK_WIDGET(offspin), FALSE);

}

gtk_adjustment_set_value(adj, stop->offset);

gtk_adjustment_changed(adj);

blocked = FALSE;

}

static SPStop *get_selected_stop( GtkWidget *vb)

{

SPStop *stop = NULL;

GtkWidget *combo_box = static_cast<GtkWidget *>(g_object_get_data(G_OBJECT(vb), "combo_box"));

if (combo_box) {

GtkTreeIter iter;

if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX(combo_box), &iter)) {

GtkListStore *store = GTK_LIST_STORE(gtk_combo_box_get_model(GTK_COMBO_BOX(combo_box)));

gtk_tree_model_get (GTK_TREE_MODEL(store), &iter, 2, &stop, -1);

}

}

return stop;

}

static void offadjustmentChanged( GtkAdjustment *adjustment, GtkWidget *vb)

{

if (!blocked) {

blocked = TRUE;

SPStop *stop = get_selected_stop(vb);

if (stop) {

stop->offset = gtk_adjustment_get_value (adjustment);

sp_repr_set_css_double(stop->getRepr(), "offset", stop->offset);

DocumentUndo::maybeDone(stop->document, "gradient:stop:offset", SP_VERB_CONTEXT_GRADIENT,

_("Change gradient stop offset"));

}

blocked = FALSE;

}

}

guint32 sp_average_color(guint32 c1, guint32 c2, gdouble p/* = 0.5*/)

{

guint32 r = (guint32) (SP_RGBA32_R_U(c1) * p + SP_RGBA32_R_U(c2) * (1 - p));

guint32 g = (guint32) (SP_RGBA32_G_U(c1) * p + SP_RGBA32_G_U(c2) * (1 - p));

guint32 b = (guint32) (SP_RGBA32_B_U(c1) * p + SP_RGBA32_B_U(c2) * (1 - p));

guint32 a = (guint32) (SP_RGBA32_A_U(c1) * p + SP_RGBA32_A_U(c2) * (1 - p));

return SP_RGBA32_U_COMPOSE(r, g, b, a);

}

static void sp_grd_ed_add_stop(GtkWidget */*widget*/, GtkWidget *vb)

{

SPGradient *gradient = static_cast<SPGradient *>(g_object_get_data(G_OBJECT(vb), "gradient"));

verify_grad(gradient);

SPStop *stop = get_selected_stop(vb);

if (!stop) {

return;

}

Inkscape::XML::Node *new_stop_repr = NULL;

SPStop *next = stop->getNextStop();

if (next == NULL) {

SPStop *prev = stop->getPrevStop();

if (prev != NULL) {

next = stop;

stop = prev;

}

}

if (next != NULL) {

new_stop_repr = stop->getRepr()->duplicate(gradient->getRepr()->document());

gradient->getRepr()->addChild(new_stop_repr, stop->getRepr());

} else {

next = stop;

new_stop_repr = stop->getPrevStop()->getRepr()->duplicate(gradient->getRepr()->document());

gradient->getRepr()->addChild(new_stop_repr, stop->getPrevStop()->getRepr());

}

SPStop *newstop = reinterpret_cast<SPStop *>(gradient->document->getObjectByRepr(new_stop_repr));

newstop->offset = (stop->offset + next->offset) * 0.5 ;

guint32 const c1 = stop->get_rgba32();

guint32 const c2 = next->get_rgba32();

guint32 cnew = sp_average_color(c1, c2);

Inkscape::CSSOStringStream os;

gchar c[64];

sp_svg_write_color(c, sizeof(c), cnew);

gdouble opacity = static_cast<gdouble>(SP_RGBA32_A_F(cnew));

os << "stop-color:" << c << ";stop-opacity:" << opacity <<";";

newstop->getRepr()->setAttribute("style", os.str().c_str());

sp_repr_set_css_double( newstop->getRepr(), "offset", (double)newstop->offset);

sp_gradient_vector_widget_load_gradient(vb, gradient);

Inkscape::GC::release(new_stop_repr);

update_stop_list(GTK_WIDGET(vb), gradient, newstop);

GtkWidget *offspin = GTK_WIDGET(g_object_get_data(G_OBJECT(vb), "offspn"));

GtkWidget *offslide =GTK_WIDGET(g_object_get_data(G_OBJECT(vb), "offslide"));

gtk_widget_set_sensitive(offslide, TRUE);

gtk_widget_set_sensitive(GTK_WIDGET(offspin), TRUE);

DocumentUndo::done(gradient->document, SP_VERB_CONTEXT_GRADIENT,

_("Add gradient stop"));

}

static void sp_grd_ed_del_stop(GtkWidget */*widget*/, GtkWidget *vb)

{

SPGradient *gradient = static_cast<SPGradient *>(g_object_get_data(G_OBJECT(vb), "gradient"));

SPStop *stop = get_selected_stop(vb);

if (!stop) {

return;

}

if (gradient->vector.stops.size() > 2) { // 2 is the minimum

// if we delete first or last stop, move the next/previous to the edge

if (stop->offset == 0) {

SPStop *next = stop->getNextStop();

if (next) {

next->offset = 0;

sp_repr_set_css_double(next->getRepr(), "offset", 0);

}

} else if (stop->offset == 1) {

SPStop *prev = stop->getPrevStop();

if (prev) {

prev->offset = 1;

sp_repr_set_css_double(prev->getRepr(), "offset", 1);

}

}

gradient->getRepr()->removeChild(stop->getRepr());

sp_gradient_vector_widget_load_gradient(vb, gradient);

update_stop_list(GTK_WIDGET(vb), gradient, NULL);

DocumentUndo::done(gradient->document, SP_VERB_CONTEXT_GRADIENT,

_("Delete gradient stop"));

}

}

static GtkWidget * sp_gradient_vector_widget_new(SPGradient *gradient, SPStop *select_stop)

{

using Inkscape::UI::Widget::ColorNotebook;

GtkWidget *vb, *w, *f;

g_return_val_if_fail(gradient != NULL, NULL);

g_return_val_if_fail(SP_IS_GRADIENT(gradient), NULL);

#if GTK_CHECK_VERSION(3,0,0)

vb = gtk_box_new(GTK_ORIENTATION_VERTICAL, PAD);

gtk_box_set_homogeneous(GTK_BOX(vb), FALSE);

#else

vb = gtk_vbox_new(FALSE, PAD);

#endif

g_signal_connect(G_OBJECT(vb), "destroy", G_CALLBACK(sp_gradient_vector_widget_destroy), NULL);

w = sp_gradient_image_new(gradient);

g_object_set_data(G_OBJECT(vb), "preview", w);

gtk_widget_show(w);

gtk_box_pack_start(GTK_BOX(vb), w, TRUE, TRUE, PAD);

sp_repr_add_listener(gradient->getRepr(), &grad_edit_dia_repr_events, vb);

/* ComboBox of stops with 3 columns,

GtkListStore *store = gtk_list_store_new (3, GDK_TYPE_PIXBUF, G_TYPE_STRING, G_TYPE_POINTER);

GtkWidget *combo_box = gtk_combo_box_new_with_model (GTK_TREE_MODEL (store));

GtkCellRenderer *renderer = gtk_cell_renderer_pixbuf_new ();

gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_box), renderer, FALSE);

gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_box), renderer, "pixbuf", 0, NULL);

gtk_cell_renderer_set_padding(renderer, 5, 0);

renderer = gtk_cell_renderer_text_new ();

gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (combo_box), renderer, TRUE);

gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (combo_box), renderer, "text", 1, NULL);

gtk_widget_show(combo_box);

gtk_box_pack_start(GTK_BOX(vb), combo_box, FALSE, FALSE, 0);

g_object_set_data(G_OBJECT(vb), "combo_box", combo_box);

update_stop_list(GTK_WIDGET(vb), gradient, NULL);

g_signal_connect(G_OBJECT(combo_box), "changed", G_CALLBACK(sp_grad_edit_combo_box_changed), vb);

/* Add and Remove buttons */

#if GTK_CHECK_VERSION(3,0,0)

GtkWidget *hb = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 1);

gtk_box_set_homogeneous(GTK_BOX(hb), FALSE);

#else

GtkWidget *hb = gtk_hbox_new(FALSE, 1);

#endif

// TRANSLATORS: "Stop" means: a "phase" of a gradient

GtkWidget *b = gtk_button_new_with_label(_("Add stop"));

gtk_widget_show(b);

gtk_container_add(GTK_CONTAINER(hb), b);

gtk_widget_set_tooltip_text(b, _("Add another control stop to gradient"));

g_signal_connect(G_OBJECT(b), "clicked", G_CALLBACK(sp_grd_ed_add_stop), vb);

b = gtk_button_new_with_label(_("Delete stop"));

gtk_widget_show(b);

gtk_container_add(GTK_CONTAINER(hb), b);

gtk_widget_set_tooltip_text(b, _("Delete current control stop from gradient"));

g_signal_connect(G_OBJECT(b), "clicked", G_CALLBACK(sp_grd_ed_del_stop), vb);

gtk_widget_show(hb);

gtk_box_pack_start(GTK_BOX(vb),hb, FALSE, FALSE, AUX_BETWEEN_BUTTON_GROUPS);

/* Offset Slider and stuff */

#if GTK_CHECK_VERSION(3,0,0)

hb = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);

gtk_box_set_homogeneous(GTK_BOX(hb), FALSE);

#else

hb = gtk_hbox_new(FALSE, 0);

#endif

/* Label */

GtkWidget *l = gtk_label_new(C_("Gradient","Offset:"));

#if GTK_CHECK_VERSION(3,0,0)

gtk_widget_set_halign(l, GTK_ALIGN_END);

#else

gtk_misc_set_alignment(GTK_MISC(l), 1.0, 0.5);

#endif

gtk_box_pack_start(GTK_BOX(hb),l, FALSE, FALSE, AUX_BETWEEN_BUTTON_GROUPS);

gtk_widget_show(l);

/* Adjustment */

GtkAdjustment *Offset_adj = NULL;

Offset_adj= GTK_ADJUSTMENT(gtk_adjustment_new(0.0, 0.0, 1.0, 0.01, 0.01, 0.0));

g_object_set_data(G_OBJECT(vb), "offset", Offset_adj);

SPStop *stop = get_selected_stop(vb);

if (!stop) {

return NULL;

}

gtk_adjustment_set_value(Offset_adj, stop->offset);

/* Slider */

#if GTK_CHECK_VERSION(3,0,0)

GtkWidget *slider = gtk_scale_new(GTK_ORIENTATION_HORIZONTAL, Offset_adj);

#else

GtkWidget *slider = gtk_hscale_new(Offset_adj);

#endif

gtk_scale_set_draw_value( GTK_SCALE(slider), FALSE );

gtk_widget_show(slider);

gtk_box_pack_start(GTK_BOX(hb),slider, TRUE, TRUE, AUX_BETWEEN_BUTTON_GROUPS);

g_object_set_data(G_OBJECT(vb), "offslide", slider);

/* Spinbutton */

GtkWidget *sbtn = gtk_spin_button_new(GTK_ADJUSTMENT(Offset_adj), 0.01, 2);

sp_dialog_defocus_on_enter(sbtn);

gtk_widget_show(sbtn);

gtk_box_pack_start(GTK_BOX(hb),sbtn, FALSE, TRUE, AUX_BETWEEN_BUTTON_GROUPS);

g_object_set_data(G_OBJECT(vb), "offspn", sbtn);

if (stop->offset>0 && stop->offset<1) {

gtk_widget_set_sensitive(slider, TRUE);

gtk_widget_set_sensitive(GTK_WIDGET(sbtn), TRUE);

} else {

gtk_widget_set_sensitive(slider, FALSE);

gtk_widget_set_sensitive(GTK_WIDGET(sbtn), FALSE);

}

/* Signals */

g_signal_connect(G_OBJECT(Offset_adj), "value_changed",

G_CALLBACK(offadjustmentChanged), vb);

// g_signal_connect(G_OBJECT(slider), "changed", G_CALLBACK(offsliderChanged), vb);

gtk_widget_show(hb);

gtk_box_pack_start(GTK_BOX(vb), hb, FALSE, FALSE, PAD);

// TRANSLATORS: "Stop" means: a "phase" of a gradient

f = gtk_frame_new(_("Stop Color"));

gtk_widget_show(f);

gtk_box_pack_start(GTK_BOX(vb), f, TRUE, TRUE, PAD);

Inkscape::UI::SelectedColor *selected_color = new Inkscape::UI::SelectedColor;

g_object_set_data(G_OBJECT(vb), "cselector", selected_color);

g_object_set_data(G_OBJECT(vb), "updating_color", reinterpret_cast<void*>(0));

selected_color->signal_dragged.connect(sigc::bind(sigc::ptr_fun(&sp_gradient_vector_color_dragged), selected_color, G_OBJECT(vb)));

selected_color->signal_dragged.connect(sigc::bind(sigc::ptr_fun(&sp_gradient_vector_color_changed), selected_color, G_OBJECT(vb)));

Gtk::Widget *color_selector = Gtk::manage(new ColorNotebook(*selected_color));

color_selector->show();

gtk_container_add(GTK_CONTAINER(f), color_selector->gobj());

/*

gtk_widget_show(vb);

sp_gradient_vector_widget_load_gradient(vb, gradient);

if (select_stop) {

select_stop_in_list(GTK_WIDGET(vb), gradient, select_stop);

}

return vb;

}

GtkWidget * sp_gradient_vector_editor_new(SPGradient *gradient, SPStop *stop)

{

if (dlg == NULL) {

Inkscape::Preferences *prefs = Inkscape::Preferences::get();

dlg = sp_window_new(_("Gradient editor"), TRUE);

if (x == -1000 || y == -1000) {

x = prefs->getInt(prefs_path + "x", -1000);

y = prefs->getInt(prefs_path + "y", -1000);

}

if (w ==0 || h == 0) {

w = prefs->getInt(prefs_path + "w", 0);

h = prefs->getInt(prefs_path + "h", 0);

}

if (x<0) {

x=0;

}

if (y<0) {

y=0;

}

if (x != 0 || y != 0) {

gtk_window_move(reinterpret_cast<GtkWindow *>(dlg), x, y);

} else {

gtk_window_set_position(GTK_WINDOW(dlg), GTK_WIN_POS_CENTER);

}

if (w && h) {

gtk_window_resize(reinterpret_cast<GtkWindow *>(dlg), w, h);

}

sp_transientize(dlg);

wd.win = dlg;

wd.stop = 0;

GObject *obj = G_OBJECT(dlg);

sigc::connection *conn = NULL;

conn = new sigc::connection(INKSCAPE.signal_activate_desktop.connect(sigc::bind(sigc::ptr_fun(&sp_transientize_callback), &wd)));

g_object_set_data(obj, "desktop-activate-connection", conn);

g_signal_connect(obj, "event", G_CALLBACK(sp_dialog_event_handler), dlg);

g_signal_connect(obj, "destroy", G_CALLBACK(sp_gradient_vector_dialog_destroy), dlg);

g_signal_connect(obj, "delete_event", G_CALLBACK(sp_gradient_vector_dialog_delete), dlg);

conn = new sigc::connection(INKSCAPE.signal_shut_down.connect(

sigc::hide_return(

sigc::bind(sigc::ptr_fun(&sp_gradient_vector_dialog_delete), (GtkWidget *) NULL, (GdkEvent *) NULL, (GtkWidget *) NULL)

)));

g_object_set_data(obj, "shutdown-connection", conn);

conn = new sigc::connection(INKSCAPE.signal_dialogs_hide.connect(sigc::bind(sigc::ptr_fun(&gtk_widget_hide), dlg)));

g_object_set_data(obj, "dialog-hide-connection", conn);

conn = new sigc::connection(INKSCAPE.signal_dialogs_unhide.connect(sigc::bind(sigc::ptr_fun(&gtk_widget_show), dlg)));

g_object_set_data(obj, "dialog-unhide-connection", conn);

gtk_container_set_border_width(GTK_CONTAINER(dlg), PAD);

GtkWidget *wid = static_cast<GtkWidget*>(sp_gradient_vector_widget_new(gradient, stop));

g_object_set_data(G_OBJECT(dlg), "gradient-vector-widget", wid);

/* Connect signals */

gtk_widget_show(wid);

gtk_container_add(GTK_CONTAINER(dlg), wid);

} else {

// FIXME: temp fix for 0.38

// Simply load_gradient into the editor does not work for multi-stop gradients,

// as the stop list and other widgets are in a wrong state and crash readily.

// Instead we just delete the window (by sending the delete signal)

// and call sp_gradient_vector_editor_new again, so it creates the window anew.

GdkEventAny event;

GtkWidget *widget = static_cast<GtkWidget *>(dlg);

event.type = GDK_DELETE;

event.window = gtk_widget_get_window (widget);

event.send_event = TRUE;

g_object_ref(G_OBJECT(event.window));

gtk_main_do_event(reinterpret_cast<GdkEvent*>(&event));

g_object_unref(G_OBJECT(event.window));

g_assert(dlg == NULL);

sp_gradient_vector_editor_new(gradient, stop);

}

return dlg;

}

static void sp_gradient_vector_widget_load_gradient(GtkWidget *widget, SPGradient *gradient)

{

blocked = TRUE;

SPGradient *old;

old = static_cast<SPGradient*>(g_object_get_data(G_OBJECT(widget), "gradient"));

if (old != gradient) {

sigc::connection *release_connection;

sigc::connection *modified_connection;

release_connection = static_cast<sigc::connection *>(g_object_get_data(G_OBJECT(widget), "gradient_release_connection"));

modified_connection = static_cast<sigc::connection *>(g_object_get_data(G_OBJECT(widget), "gradient_modified_connection"));

if (old) {

g_assert( release_connection != NULL );

g_assert( modified_connection != NULL );

release_connection->disconnect();

modified_connection->disconnect();

sp_signal_disconnect_by_data(old, widget);

}

if (gradient) {

if (!release_connection) {

release_connection = new sigc::connection();

}

if (!modified_connection) {

modified_connection = new sigc::connection();

}

*release_connection = gradient->connectRelease(sigc::bind<1>(sigc::ptr_fun(&sp_gradient_vector_gradient_release), widget));

*modified_connection = gradient->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_gradient_vector_gradient_modified), widget));

} else {

if (release_connection) {

delete release_connection;

release_connection = NULL;

}

if (modified_connection) {

delete modified_connection;

modified_connection = NULL;

}

}

g_object_set_data(G_OBJECT(widget), "gradient_release_connection", release_connection);

g_object_set_data(G_OBJECT(widget), "gradient_modified_connection", modified_connection);

}

g_object_set_data(G_OBJECT(widget), "gradient", gradient);

if (gradient) {

gtk_widget_set_sensitive(widget, TRUE);

gradient->ensureVector();

SPStop *stop = get_selected_stop(widget);

if (!stop) {

return;

}

// get the color selector

SelectedColor *csel = static_cast<SelectedColor*>(g_object_get_data(G_OBJECT(widget), "cselector"));

g_object_set_data(G_OBJECT(widget), "updating_color", reinterpret_cast<void*>(1));

csel->setColorAlpha(stop->getEffectiveColor(), stop->opacity);

g_object_set_data(G_OBJECT(widget), "updating_color", reinterpret_cast<void*>(0));

/* Fill preview */

GtkWidget *w = static_cast<GtkWidget *>(g_object_get_data(G_OBJECT(widget), "preview"));

sp_gradient_image_set_gradient(SP_GRADIENT_IMAGE(w), gradient);

update_stop_list(GTK_WIDGET(widget), gradient, NULL);

// Once the user edits a gradient, it stops being auto-collectable

if (gradient->getRepr()->attribute("inkscape:collect")) {

SPDocument *document = gradient->document;

bool saved = DocumentUndo::getUndoSensitive(document);

DocumentUndo::setUndoSensitive(document, false);

gradient->getRepr()->setAttribute("inkscape:collect", NULL);

DocumentUndo::setUndoSensitive(document, saved);

}

} else { // no gradient, disable everything

gtk_widget_set_sensitive(widget, FALSE);

}

blocked = FALSE;

}

#if GTK_CHECK_VERSION(3,0,0)

static void sp_gradient_vector_dialog_destroy(GtkWidget * /*object*/, gpointer /*data*/)

#else

static void sp_gradient_vector_dialog_destroy(GtkObject * /*object*/, gpointer /*data*/)

#endif

{

GObject *obj = G_OBJECT(dlg);

assert(obj != NULL);

sigc::connection *conn = static_cast<sigc::connection *>(g_object_get_data(obj, "desktop-activate-connection"));

assert(conn != NULL);

conn->disconnect();

delete conn;

conn = static_cast<sigc::connection *>(g_object_get_data(obj, "shutdown-connection"));

assert(conn != NULL);

conn->disconnect();

delete conn;

conn = static_cast<sigc::connection *>(g_object_get_data(obj, "dialog-hide-connection"));

assert(conn != NULL);

conn->disconnect();

delete conn;

conn = static_cast<sigc::connection *>(g_object_get_data(obj, "dialog-unhide-connection"));

assert(conn != NULL);

conn->disconnect();

delete conn;

wd.win = dlg = NULL;

wd.stop = 0;

}

static gboolean sp_gradient_vector_dialog_delete(GtkWidget */*widget*/, GdkEvent */*event*/, GtkWidget */*dialog*/)

{

gtk_window_get_position(GTK_WINDOW(dlg), &x, &y);

gtk_window_get_size(GTK_WINDOW(dlg), &w, &h);

if (x<0) {

x=0;

}

if (y<0) {

y=0;

}

Inkscape::Preferences *prefs = Inkscape::Preferences::get();

prefs->setInt(prefs_path + "x", x);

prefs->setInt(prefs_path + "y", y);

prefs->setInt(prefs_path + "w", w);

prefs->setInt(prefs_path + "h", h);

return FALSE; // which means, go ahead and destroy it

}

#if GTK_CHECK_VERSION(3,0,0)

static void sp_gradient_vector_widget_destroy(GtkWidget *object, gpointer /*data*/)

#else

static void sp_gradient_vector_widget_destroy(GtkObject *object, gpointer /*data*/)

#endif

{

SPObject *gradient = SP_OBJECT(g_object_get_data(G_OBJECT(object), "gradient"));

sigc::connection *release_connection = static_cast<sigc::connection *>(g_object_get_data(G_OBJECT(object), "gradient_release_connection"));

sigc::connection *modified_connection = static_cast<sigc::connection *>(g_object_get_data(G_OBJECT(object), "gradient_modified_connection"));

if (gradient) {

g_assert( release_connection != NULL );

g_assert( modified_connection != NULL );

release_connection->disconnect();

modified_connection->disconnect();

sp_signal_disconnect_by_data(gradient, object);

if (gradient->getRepr()) {

sp_repr_remove_listener_by_data(gradient->getRepr(), object);

}

}

SelectedColor *selected_color = static_cast<SelectedColor *>(g_object_get_data(G_OBJECT(object), "cselector"));

if (selected_color) {

delete selected_color;

g_object_set_data(G_OBJECT(object), "cselector", NULL);

}

}

static void sp_gradient_vector_gradient_release(SPObject */*object*/, GtkWidget *widget)

{

sp_gradient_vector_widget_load_gradient(widget, NULL);

}

static void sp_gradient_vector_gradient_modified(SPObject *object, guint /*flags*/, GtkWidget *widget)

{

SPGradient *gradient=SP_GRADIENT(object);

if (!blocked) {

blocked = TRUE;

sp_gradient_vector_widget_load_gradient(widget, gradient);

blocked = FALSE;

}

}

static void sp_gradient_vector_color_dragged(Inkscape::UI::SelectedColor *selected_color, GObject *object)

{

SPGradient *gradient, *ngr;

if (blocked) {

return;

}

gradient = static_cast<SPGradient*>(g_object_get_data(G_OBJECT(object), "gradient"));

if (!gradient) {

return;

}

blocked = TRUE;

ngr = sp_gradient_ensure_vector_normalized(gradient);

if (ngr != gradient) {

/* Our master gradient has changed */

sp_gradient_vector_widget_load_gradient(GTK_WIDGET(object), ngr);

}

ngr->ensureVector();

SPStop *stop = get_selected_stop(GTK_WIDGET(object));

if (!stop) {

return;

}

selected_color->colorAlpha(stop->specified_color, stop->opacity);

stop->currentColor = false;

blocked = FALSE;

}

static void sp_gradient_vector_color_changed(Inkscape::UI::SelectedColor *selected_color, GObject *object)

{

(void)selected_color;

void* updating_color = g_object_get_data(G_OBJECT(object), "updating_color");

if (updating_color) {

return;

}

if (blocked) {

return;

}

SPGradient *gradient = static_cast<SPGradient*>(g_object_get_data(G_OBJECT(object), "gradient"));

if (!gradient) {

return;

}

blocked = TRUE;

SPGradient *ngr = sp_gradient_ensure_vector_normalized(gradient);

if (ngr != gradient) {

/* Our master gradient has changed */

sp_gradient_vector_widget_load_gradient(GTK_WIDGET(object), ngr);

}

ngr->ensureVector();

/* Set start parameters */

/* We rely on normalized vector, i.e. stops HAVE to exist */

g_return_if_fail(ngr->getFirstStop() != NULL);

SPStop *stop = get_selected_stop(GTK_WIDGET(object));

if (!stop) {

return;

}

SelectedColor *csel = static_cast<SelectedColor *>(g_object_get_data(G_OBJECT(object), "cselector"));

SPColor color;

float alpha = 0;

csel->colorAlpha(color, alpha);

sp_repr_set_css_double(stop->getRepr(), "offset", stop->offset);

Inkscape::CSSOStringStream os;

os << "stop-color:" << color.toString() << ";stop-opacity:" << static_cast<gdouble>(alpha) <<";";

stop->getRepr()->setAttribute("style", os.str().c_str());

// g_snprintf(c, 256, "stop-color:#%06x;stop-opacity:%g;", rgb >> 8, static_cast<gdouble>(alpha));

//stop->getRepr()->setAttribute("style", c);

DocumentUndo::done(ngr->document, SP_VERB_CONTEXT_GRADIENT,

_("Change gradient stop color"));

blocked = FALSE;

// Set the color in the selected stop after change

GtkWidget *combo_box = static_cast<GtkWidget *>(g_object_get_data(G_OBJECT(object), "combo_box"));

if (combo_box) {

GtkTreeIter iter;

if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX(combo_box), &iter)) {

GtkListStore *store = GTK_LIST_STORE(gtk_combo_box_get_model(GTK_COMBO_BOX(combo_box)));

Inkscape::UI::Widget::ColorPreview *cp = Gtk::manage(new Inkscape::UI::Widget::ColorPreview(stop->get_rgba32()));

GdkPixbuf *pb = cp->toPixbuf(64, 16);

gtk_list_store_set (store, &iter, 0, pb, /*1, repr->attribute("id"),*/ 2, stop, -1);

}

}

}