40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#ifdef HAVE_CONFIG_H

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński# include "config.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#endif

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include <gdk/gdkkeysyms.h>

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "macros.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "document.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "selection.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "desktop.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "desktop-handles.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "message-context.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "message-stack.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "pixmaps/cursor-gradient.xpm"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "pixmaps/cursor-gradient-add.xpm"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "gradient-context.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "gradient-chemistry.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include <glibmm/i18n.h>

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "preferences.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "gradient-drag.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "gradient-chemistry.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "xml/repr.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "sp-item.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "display/sp-ctrlline.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "sp-linear-gradient.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "sp-radial-gradient.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "sp-stop.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "svg/css-ostringstream.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "svg/svg-color.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "snap.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "sp-namedview.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "rubberband.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "document-undo.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "verbs.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "selection-chemistry.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskiusing Inkscape::DocumentUndo;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskistatic void sp_gradient_drag(SPGradientContext &rc, Geom::Point const pt, guint state, guint32 etime);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński#include "tool-factory.h"

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskinamespace {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPEventContext* createGradientContext() {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński return new SPGradientContext();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński bool gradientContextRegistered = ToolFactory::instance().registerObject("/tools/gradient", createGradientContext);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński}

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskiconst std::string& SPGradientContext::getPrefsPath() {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński return SPGradientContext::prefsPath;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński}

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskiconst std::string SPGradientContext::prefsPath = "/tools/gradient";

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof KosińskiSPGradientContext::SPGradientContext() : SPEventContext() {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->node_added = false;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->subselcon = 0;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->_message_context = 0;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->selcon = 0;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

827bc501341bcc5c344c0422f13422bc368151b4Krzysztof Kosiński this->cursor_addnode = false;

827bc501341bcc5c344c0422f13422bc368151b4Krzysztof Kosiński this->cursor_shape = cursor_gradient_xpm;

827bc501341bcc5c344c0422f13422bc368151b4Krzysztof Kosiński this->hot_x = 4;

827bc501341bcc5c344c0422f13422bc368151b4Krzysztof Kosiński this->hot_y = 4;

827bc501341bcc5c344c0422f13422bc368151b4Krzysztof Kosiński this->xp = 0;

827bc501341bcc5c344c0422f13422bc368151b4Krzysztof Kosiński this->yp = 0;

827bc501341bcc5c344c0422f13422bc368151b4Krzysztof Kosiński this->tolerance = 6;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->within_tolerance = false;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->item_to_select = NULL;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński}

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof KosińskiSPGradientContext::~SPGradientContext() {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->enableGrDrag(false);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (this->_message_context) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński delete this->_message_context;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->selcon->disconnect();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński delete this->selcon;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->subselcon->disconnect();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński delete this->subselcon;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński}

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskiconst gchar *gr_handle_descr [] = {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński N_("Linear gradient <b>start</b>"), //POINT_LG_BEGIN

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński N_("Linear gradient <b>end</b>"),

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński N_("Linear gradient <b>mid stop</b>"),

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński N_("Radial gradient <b>center</b>"),

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński N_("Radial gradient <b>radius</b>"),

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński N_("Radial gradient <b>radius</b>"),

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński N_("Radial gradient <b>focus</b>"), // POINT_RG_FOCUS

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński N_("Radial gradient <b>mid stop</b>"),

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński N_("Radial gradient <b>mid stop</b>")

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński};

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosińskivoid SPGradientContext::selection_changed(Inkscape::Selection*) {

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński SPGradientContext *rc = (SPGradientContext *) this;

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński GrDrag *drag = rc->_grdrag;

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński Inkscape::Selection *selection = sp_desktop_selection(SP_EVENT_CONTEXT(rc)->desktop);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (selection == NULL) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński return;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński guint n_obj = g_slist_length((GSList *) selection->itemList());

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (!drag->isNonEmpty() || selection->isEmpty())

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński return;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński guint n_tot = drag->numDraggers();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński guint n_sel = drag->numSelected();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński //The use of ngettext in the following code is intentional even if the English singular form would never be used

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (n_sel == 1) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (drag->singleSelectedDraggerNumDraggables() == 1) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński gchar * message = g_strconcat(

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński //TRANSLATORS: %s will be substituted with the point name (see previous messages); This is part of a compound message

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński _("%s selected"),

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński //TRANSLATORS: Mind the space in front. This is part of a compound message

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński ngettext(" out of %d gradient handle"," out of %d gradient handles",n_tot),

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński rc->_message_context->setF(Inkscape::NORMAL_MESSAGE,

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński message,_(gr_handle_descr[drag->singleSelectedDraggerSingleDraggableType()]), n_tot, n_obj);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński } else {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński gchar * message = g_strconcat(

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński //TRANSLATORS: This is a part of a compound message (out of two more indicating: grandint handle count & object count)

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński ngettext("One handle merging %d stop (drag with <b>Shift</b> to separate) selected",

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński "One handle merging %d stops (drag with <b>Shift</b> to separate) selected",drag->singleSelectedDraggerNumDraggables()),

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński ngettext(" out of %d gradient handle"," out of %d gradient handles",n_tot),

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński rc->_message_context->setF(Inkscape::NORMAL_MESSAGE,message,drag->singleSelectedDraggerNumDraggables(), n_tot, n_obj);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński } else if (n_sel > 1) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński //TRANSLATORS: The plural refers to number of selected gradient handles. This is part of a compound message (part two indicates selected object count)

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński gchar * message = g_strconcat(ngettext("<b>%d</b> gradient handle selected out of %d","<b>%d</b> gradient handles selected out of %d",n_sel),

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński //TRANSLATORS: Mind the space in front. (Refers to gradient handles selected). This is part of a compound message

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński ngettext(" on %d selected object"," on %d selected objects",n_obj),NULL);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński rc->_message_context->setF(Inkscape::NORMAL_MESSAGE,message, n_sel, n_tot, n_obj);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński } else if (n_sel == 0) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński rc->_message_context->setF(Inkscape::NORMAL_MESSAGE,

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński //TRANSLATORS: The plural refers to number of selected objects

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński ngettext("<b>No</b> gradient handles selected out of %d on %d selected object",

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński "<b>No</b> gradient handles selected out of %d on %d selected objects",n_obj), n_tot, n_obj);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński}

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskivoid SPGradientContext::setup() {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPEventContext::setup();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński Inkscape::Preferences *prefs = Inkscape::Preferences::get();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (prefs->getBool("/tools/gradient/selcue", true)) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->enableSelectionCue();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->enableGrDrag();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński Inkscape::Selection *selection = sp_desktop_selection(this->desktop);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->_message_context = new Inkscape::MessageContext(sp_desktop_message_stack(this->desktop));

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->selcon = new sigc::connection(selection->connectChanged(

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński sigc::mem_fun(this, &SPGradientContext::selection_changed)

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński ));

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->subselcon = new sigc::connection(this->desktop->connectToolSubselectionChanged(

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński sigc::hide(sigc::bind(

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński sigc::mem_fun(this, &SPGradientContext::selection_changed),

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński (Inkscape::Selection*)NULL

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński ))

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński ));

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński this->selection_changed(selection);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński}

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskisp_gradient_context_select_next (SPEventContext *event_context)

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński{

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GrDrag *drag = event_context->_grdrag;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński g_assert (drag);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GrDragger *d = drag->select_next();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński event_context->desktop->scroll_to_point(d->point, 1.0);

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński}

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosińskisp_gradient_context_select_prev (SPEventContext *event_context)

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński{

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński GrDrag *drag = event_context->_grdrag;

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński g_assert (drag);

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński GrDragger *d = drag->select_prev();

ef494f75ca77f36881ad59e94263a07c146c3649Krzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński event_context->desktop->scroll_to_point(d->point, 1.0);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński}

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskistatic bool

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskisp_gradient_context_is_over_line (SPGradientContext *rc, SPItem *item, Geom::Point event_p)

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński{

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPDesktop *desktop = SP_EVENT_CONTEXT (rc)->desktop;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński //Translate mouse point into proper coord system

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński rc->mousepoint_doc = desktop->w2d(event_p);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPCtrlLine* line = SP_CTRLLINE(item);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński Geom::LineSegment ls(line->s, line->e);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński Geom::Point nearest = ls.pointAt(ls.nearestPoint(rc->mousepoint_doc));

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński double dist_screen = Geom::L2 (rc->mousepoint_doc - nearest) * desktop->current_zoom();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński double tolerance = (double) SP_EVENT_CONTEXT(rc)->tolerance;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński bool close = (dist_screen < tolerance);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński return close;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński}

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskistatic std::vector<Geom::Point>

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskisp_gradient_context_get_stop_intervals (GrDrag *drag, GSList **these_stops, GSList **next_stops)

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński{

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński std::vector<Geom::Point> coords;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // for all selected draggers

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński for (GList *i = drag->selected; i != NULL; i = i->next) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GrDragger *dragger = (GrDragger *) i->data;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // remember the coord of the dragger to reselect it later

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński coords.push_back(dragger->point);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // for all draggables of dragger

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński for (GSList const* j = dragger->draggables; j != NULL; j = j->next) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GrDraggable *d = (GrDraggable *) j->data;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // find the gradient

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPGradient *gradient = getGradient(d->item, d->fill_or_stroke);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPGradient *vector = sp_gradient_get_forked_vector_if_necessary (gradient, false);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // these draggable types cannot have a next draggabe to insert a stop between them

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (d->point_type == POINT_LG_END ||

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński d->point_type == POINT_RG_FOCUS ||

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński d->point_type == POINT_RG_R1 ||

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński d->point_type == POINT_RG_R2) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński continue;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // from draggables to stops

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPStop *this_stop = sp_get_stop_i (vector, d->point_i);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPStop *next_stop = this_stop->getNextStop();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPStop *last_stop = sp_last_stop (vector);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński Inkscape::PaintTarget fs = d->fill_or_stroke;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPItem *item = d->item;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński gint type = d->point_type;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński gint p_i = d->point_i;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // if there's a next stop,

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (next_stop) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GrDragger *dnext = NULL;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // find its dragger

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // (complex because it may have different types, and because in radial,

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // more than one dragger may correspond to a stop, so we must distinguish)

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (type == POINT_LG_BEGIN || type == POINT_LG_MID) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (next_stop == last_stop) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński dnext = drag->getDraggerFor(item, POINT_LG_END, p_i+1, fs);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński } else {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński dnext = drag->getDraggerFor(item, POINT_LG_MID, p_i+1, fs);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński } else { // radial

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (type == POINT_RG_CENTER || type == POINT_RG_MID1) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (next_stop == last_stop) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński dnext = drag->getDraggerFor(item, POINT_RG_R1, p_i+1, fs);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński } else {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński dnext = drag->getDraggerFor(item, POINT_RG_MID1, p_i+1, fs);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if ((type == POINT_RG_MID2) ||

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński (type == POINT_RG_CENTER && dnext && !dnext->isSelected())) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (next_stop == last_stop) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński dnext = drag->getDraggerFor(item, POINT_RG_R2, p_i+1, fs);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński } else {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński dnext = drag->getDraggerFor(item, POINT_RG_MID2, p_i+1, fs);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // if both adjacent draggers selected,

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (!g_slist_find(*these_stops, this_stop) && dnext && dnext->isSelected()) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // remember the coords of the future dragger to select it

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński coords.push_back(0.5*(dragger->point + dnext->point));

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // do not insert a stop now, it will confuse the loop;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // just remember the stops

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński *these_stops = g_slist_prepend (*these_stops, this_stop);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński *next_stops = g_slist_prepend (*next_stops, next_stop);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński return coords;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński}

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskisp_gradient_context_add_stops_between_selected_stops (SPGradientContext *rc)

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński{

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPDocument *doc = NULL;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GrDrag *drag = rc->_grdrag;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GSList *these_stops = NULL;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GSList *next_stops = NULL;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński std::vector<Geom::Point> coords = sp_gradient_context_get_stop_intervals (drag, &these_stops, &next_stops);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (g_slist_length(these_stops) == 0 && drag->numSelected() == 1) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // if a single stop is selected, add between that stop and the next one

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GrDragger *dragger = (GrDragger *) drag->selected->data;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński for (GSList const* j = dragger->draggables; j != NULL; j = j->next) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GrDraggable *d = (GrDraggable *) j->data;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (d->point_type == POINT_RG_FOCUS) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński /*

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński continue;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPGradient *gradient = getGradient(d->item, d->fill_or_stroke);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPGradient *vector = sp_gradient_get_forked_vector_if_necessary (gradient, false);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPStop *this_stop = sp_get_stop_i (vector, d->point_i);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPStop *next_stop = this_stop->getNextStop();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (this_stop && next_stop) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński these_stops = g_slist_prepend (these_stops, this_stop);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński next_stops = g_slist_prepend (next_stops, next_stop);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // now actually create the new stops

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GSList *i = these_stops;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GSList *j = next_stops;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński GSList *new_stops = NULL;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński for (; i != NULL && j != NULL; i = i->next, j = j->next) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPStop *this_stop = (SPStop *) i->data;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPStop *next_stop = (SPStop *) j->data;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński gfloat offset = 0.5*(this_stop->offset + next_stop->offset);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPObject *parent = this_stop->parent;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (SP_IS_GRADIENT (parent)) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński doc = parent->document;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SPStop *new_stop = sp_vector_add_stop (SP_GRADIENT (parent), this_stop, next_stop, offset);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński new_stops = g_slist_prepend (new_stops, new_stop);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński SP_GRADIENT(parent)->ensureVector();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński if (g_slist_length(these_stops) > 0 && doc) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński DocumentUndo::done(doc, SP_VERB_CONTEXT_GRADIENT, _("Add gradient stop"));

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński drag->updateDraggers();

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // so that it does not automatically update draggers in idle loop, as this would deselect

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński drag->local_change = true;

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński // select the newly created stops

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński for (GSList *s = new_stops; s != NULL; s = s->next) {

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński drag->selectByStop((SPStop *)s->data);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński }

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński g_slist_free (these_stops);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński g_slist_free (next_stops);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński g_slist_free (new_stops);

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński}

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosiński

40742313779ee5e43be93a9191f1c86412cf183bKrzysztof Kosińskistatic double sqr(double x) {return x*x;}

static void

sp_gradient_simplify(SPGradientContext *rc, double tolerance)

{

SPDocument *doc = NULL;

GrDrag *drag = rc->_grdrag;

GSList *these_stops = NULL;

GSList *next_stops = NULL;

std::vector<Geom::Point> coords = sp_gradient_context_get_stop_intervals (drag, &these_stops, &next_stops);

GSList *todel = NULL;

GSList *i = these_stops;

GSList *j = next_stops;

for (; i != NULL && j != NULL; i = i->next, j = j->next) {

SPStop *stop0 = (SPStop *) i->data;

SPStop *stop1 = (SPStop *) j->data;

gint i1 = g_slist_index(these_stops, stop1);

if (i1 != -1) {

GSList *next_next = g_slist_nth (next_stops, i1);

if (next_next) {

SPStop *stop2 = (SPStop *) next_next->data;

if (g_slist_find(todel, stop0) || g_slist_find(todel, stop2))

continue;

guint32 const c0 = sp_stop_get_rgba32(stop0);

guint32 const c2 = sp_stop_get_rgba32(stop2);

guint32 const c1r = sp_stop_get_rgba32(stop1);

guint32 c1 = average_color (c0, c2,

(stop1->offset - stop0->offset) / (stop2->offset - stop0->offset));

double diff =

sqr(SP_RGBA32_R_F(c1) - SP_RGBA32_R_F(c1r)) +

sqr(SP_RGBA32_G_F(c1) - SP_RGBA32_G_F(c1r)) +

sqr(SP_RGBA32_B_F(c1) - SP_RGBA32_B_F(c1r)) +

sqr(SP_RGBA32_A_F(c1) - SP_RGBA32_A_F(c1r));

if (diff < tolerance)

todel = g_slist_prepend (todel, stop1);

}

}

}

for (i = todel; i != NULL; i = i->next) {

SPStop *stop = (SPStop*) i->data;

doc = stop->document;

Inkscape::XML::Node * parent = stop->getRepr()->parent();

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

}

if (g_slist_length(todel) > 0) {

DocumentUndo::done(doc, SP_VERB_CONTEXT_GRADIENT, _("Simplify gradient"));

drag->local_change = true;

drag->updateDraggers();

drag->selectByCoords(coords);

}

g_slist_free (todel);

g_slist_free (these_stops);

g_slist_free (next_stops);

}

static void

sp_gradient_context_add_stop_near_point (SPGradientContext *rc, SPItem *item, Geom::Point mouse_p, guint32 /*etime*/)

{

// item is the selected item. mouse_p the location in doc coordinates of where to add the stop

SPEventContext *ec = SP_EVENT_CONTEXT(rc);

SPDesktop *desktop = SP_EVENT_CONTEXT (rc)->desktop;

double tolerance = (double) ec->tolerance;

SPStop *newstop = ec->get_drag()->addStopNearPoint (item, mouse_p, tolerance/desktop->current_zoom());

DocumentUndo::done(sp_desktop_document (desktop), SP_VERB_CONTEXT_GRADIENT,

_("Add gradient stop"));

ec->get_drag()->updateDraggers();

ec->get_drag()->local_change = true;

ec->get_drag()->selectByStop(newstop);

}

bool SPGradientContext::root_handler(GdkEvent* event) {

static bool dragging;

Inkscape::Selection *selection = sp_desktop_selection (desktop);

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

this->tolerance = prefs->getIntLimited("/options/dragtolerance/value", 0, 0, 100);

double const nudge = prefs->getDoubleLimited("/options/nudgedistance/value", 2, 0, 1000, "px"); // in px

GrDrag *drag = this->_grdrag;

g_assert (drag);

gint ret = FALSE;

switch (event->type) {

case GDK_2BUTTON_PRESS:

if ( event->button.button == 1 ) {

bool over_line = false;

SPCtrlLine *line = NULL;

if (drag->lines) {

for (GSList *l = drag->lines; (l != NULL) && (!over_line); l = l->next) {

line = (SPCtrlLine*) l->data;

over_line |= sp_gradient_context_is_over_line (this, (SPItem*) line, Geom::Point(event->motion.x, event->motion.y));

}

}

if (over_line) {

// we take the first item in selection, because with doubleclick, the first click

// always resets selection to the single object under cursor

sp_gradient_context_add_stop_near_point(this, SP_ITEM(selection->itemList()->data), this->mousepoint_doc, event->button.time);

} else {

for (GSList const* i = selection->itemList(); i != NULL; i = i->next) {

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

SPGradientType new_type = (SPGradientType) prefs->getInt("/tools/gradient/newgradient", SP_GRADIENT_TYPE_LINEAR);

Inkscape::PaintTarget fsmode = (prefs->getInt("/tools/gradient/newfillorstroke", 1) != 0) ? Inkscape::FOR_FILL : Inkscape::FOR_STROKE;

SPGradient *vector = sp_gradient_vector_for_object(sp_desktop_document(desktop), desktop, item, fsmode);

SPGradient *priv = sp_item_set_gradient(item, vector, new_type, fsmode);

sp_gradient_reset_to_userspace(priv, item);

}

DocumentUndo::done(sp_desktop_document (desktop), SP_VERB_CONTEXT_GRADIENT,

_("Create default gradient"));

}

ret = TRUE;

}

break;

case GDK_BUTTON_PRESS:

if ( event->button.button == 1 && !this->space_panning ) {

Geom::Point button_w(event->button.x, event->button.y);

// save drag origin

this->xp = (gint) button_w[Geom::X];

this->yp = (gint) button_w[Geom::Y];

this->within_tolerance = true;

dragging = true;

Geom::Point button_dt = desktop->w2d(button_w);

if (event->button.state & GDK_SHIFT_MASK) {

Inkscape::Rubberband::get(desktop)->start(desktop, button_dt);

} else {

// remember clicked item, disregarding groups, honoring Alt; do nothing with Crtl to

// enable Ctrl+doubleclick of exactly the selected item(s)

if (!(event->button.state & GDK_CONTROL_MASK)) {

this->item_to_select = sp_event_context_find_item (desktop, button_w, event->button.state & GDK_MOD1_MASK, TRUE);

}

if (!selection->isEmpty()) {

SnapManager &m = desktop->namedview->snap_manager;

m.setup(desktop);

m.freeSnapReturnByRef(button_dt, Inkscape::SNAPSOURCE_NODE_HANDLE);

m.unSetup();

}

this->origin = button_dt;

}

ret = TRUE;

}

break;

case GDK_MOTION_NOTIFY:

if (dragging && ( event->motion.state & GDK_BUTTON1_MASK ) && !this->space_panning) {

if ( this->within_tolerance

&& ( abs( (gint) event->motion.x - this->xp ) < this->tolerance )

&& ( abs( (gint) event->motion.y - this->yp ) < this->tolerance ) ) {

break; // do not drag if we're within tolerance from origin

}

// Once the user has moved farther than tolerance from the original location

// (indicating they intend to draw, not click), then always process the

// motion notify coordinates as given (no snapping back to origin)

this->within_tolerance = false;

Geom::Point const motion_w(event->motion.x,

event->motion.y);

Geom::Point const motion_dt = this->desktop->w2d(motion_w);

if (Inkscape::Rubberband::get(desktop)->is_started()) {

Inkscape::Rubberband::get(desktop)->move(motion_dt);

this->defaultMessageContext()->set(Inkscape::NORMAL_MESSAGE, _("<b>Draw around</b> handles to select them"));

} else {

sp_gradient_drag(*this, motion_dt, event->motion.state, event->motion.time);

}

gobble_motion_events(GDK_BUTTON1_MASK);

ret = TRUE;

} else {

if (!drag->mouseOver() && !selection->isEmpty()) {

SnapManager &m = desktop->namedview->snap_manager;

m.setup(desktop);

Geom::Point const motion_w(event->motion.x, event->motion.y);

Geom::Point const motion_dt = this->desktop->w2d(motion_w);

m.preSnap(Inkscape::SnapCandidatePoint(motion_dt, Inkscape::SNAPSOURCE_OTHER_HANDLE));

m.unSetup();

}

bool over_line = false;

if (drag->lines) {

for (GSList *l = drag->lines; l != NULL; l = l->next) {

over_line |= sp_gradient_context_is_over_line (this, (SPItem*) l->data, Geom::Point(event->motion.x, event->motion.y));

}

}

if (this->cursor_addnode && !over_line) {

this->cursor_shape = cursor_gradient_xpm;

this->sp_event_context_update_cursor();

this->cursor_addnode = false;

} else if (!this->cursor_addnode && over_line) {

this->cursor_shape = cursor_gradient_add_xpm;

this->sp_event_context_update_cursor();

this->cursor_addnode = true;

}

}

break;

case GDK_BUTTON_RELEASE:

this->xp = this->yp = 0;

if ( event->button.button == 1 && !this->space_panning ) {

bool over_line = false;

SPCtrlLine *line = NULL;

if (drag->lines) {

for (GSList *l = drag->lines; (l != NULL) && (!over_line); l = l->next) {

line = (SPCtrlLine*) l->data;

over_line = sp_gradient_context_is_over_line (this, (SPItem*) line, Geom::Point(event->motion.x, event->motion.y));

if (over_line)

break;

}

}

if ( (event->button.state & GDK_CONTROL_MASK) && (event->button.state & GDK_MOD1_MASK ) ) {

if (over_line && line) {

sp_gradient_context_add_stop_near_point(this, line->item, this->mousepoint_doc, 0);

ret = TRUE;

}

} else {

dragging = false;

// unless clicked with Ctrl (to enable Ctrl+doubleclick).

if (event->button.state & GDK_CONTROL_MASK) {

ret = TRUE;

break;

}

if (!this->within_tolerance) {

// we've been dragging, either do nothing (grdrag handles that),

// or rubberband-select if we have rubberband

Inkscape::Rubberband *r = Inkscape::Rubberband::get(desktop);

if (r->is_started() && !this->within_tolerance) {

// this was a rubberband drag

if (r->getMode() == RUBBERBAND_MODE_RECT) {

Geom::OptRect const b = r->getRectangle();

drag->selectRect(*b);

}

}

} else if (this->item_to_select) {

if (over_line && line) {

// Clicked on an existing gradient line, dont change selection. This stops

// possible change in selection during a double click with overlapping objects

} else {

// no dragging, select clicked item if any

if (event->button.state & GDK_SHIFT_MASK) {

selection->toggle(this->item_to_select);

} else {

drag->deselectAll();

selection->set(this->item_to_select);

}

}

} else {

// click in an empty space; do the same as Esc

if (drag->selected) {

drag->deselectAll();

} else {

selection->clear();

}

}

this->item_to_select = NULL;

ret = TRUE;

}

Inkscape::Rubberband::get(desktop)->stop();

}

break;

case GDK_KEY_PRESS:

switch (get_group0_keyval (&event->key)) {

case GDK_KEY_Alt_L:

case GDK_KEY_Alt_R:

case GDK_KEY_Control_L:

case GDK_KEY_Control_R:

case GDK_KEY_Shift_L:

case GDK_KEY_Shift_R:

case GDK_KEY_Meta_L: // Meta is when you press Shift+Alt (at least on my machine)

case GDK_KEY_Meta_R:

sp_event_show_modifier_tip (this->defaultMessageContext(), event,

_("<b>Ctrl</b>: snap gradient angle"),

_("<b>Shift</b>: draw gradient around the starting point"),

NULL);

break;

case GDK_KEY_x:

case GDK_KEY_X:

if (MOD__ALT_ONLY(event)) {

desktop->setToolboxFocusTo ("altx-grad");

ret = TRUE;

}

break;

case GDK_KEY_A:

case GDK_KEY_a:

if (MOD__CTRL_ONLY(event) && drag->isNonEmpty()) {

drag->selectAll();

ret = TRUE;

}

break;

case GDK_KEY_L:

case GDK_KEY_l:

if (MOD__CTRL_ONLY(event) && drag->isNonEmpty() && drag->hasSelection()) {

sp_gradient_simplify(this, 1e-4);

ret = TRUE;

}

break;

case GDK_KEY_Escape:

if (drag->selected) {

drag->deselectAll();

} else {

Inkscape::SelectionHelper::selectNone(desktop);

}

ret = TRUE;

//TODO: make dragging escapable by Esc

break;

case GDK_KEY_Left: // move handle left

case GDK_KEY_KP_Left:

case GDK_KEY_KP_4:

if (!MOD__CTRL(event)) { // not ctrl

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

if (MOD__ALT(event)) { // alt

if (MOD__SHIFT(event)) {

drag->selected_move_screen(mul*-10, 0); // shift

} else {

drag->selected_move_screen(mul*-1, 0); // no shift

}

} else { // no alt

if (MOD__SHIFT(event)) {

drag->selected_move(mul*-10*nudge, 0); // shift

} else {

drag->selected_move(mul*-nudge, 0); // no shift

}

}

ret = TRUE;

}

break;

case GDK_KEY_Up: // move handle up

case GDK_KEY_KP_Up:

case GDK_KEY_KP_8:

if (!MOD__CTRL(event)) { // not ctrl

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

if (MOD__ALT(event)) { // alt

if (MOD__SHIFT(event)) {

drag->selected_move_screen(0, mul*10); // shift

} else {

drag->selected_move_screen(0, mul*1); // no shift

}

} else { // no alt

if (MOD__SHIFT(event)) {

drag->selected_move(0, mul*10*nudge); // shift

} else {

drag->selected_move(0, mul*nudge); // no shift

}

}

ret = TRUE;

}

break;

case GDK_KEY_Right: // move handle right

case GDK_KEY_KP_Right:

case GDK_KEY_KP_6:

if (!MOD__CTRL(event)) { // not ctrl

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

if (MOD__ALT(event)) { // alt

if (MOD__SHIFT(event)) {

drag->selected_move_screen(mul*10, 0); // shift

} else {

drag->selected_move_screen(mul*1, 0); // no shift

}

} else { // no alt

if (MOD__SHIFT(event)) {

drag->selected_move(mul*10*nudge, 0); // shift

} else {

drag->selected_move(mul*nudge, 0); // no shift

}

}

ret = TRUE;

}

break;

case GDK_KEY_Down: // move handle down

case GDK_KEY_KP_Down:

case GDK_KEY_KP_2:

if (!MOD__CTRL(event)) { // not ctrl

gint mul = 1 + gobble_key_events(

get_group0_keyval(&event->key), 0); // with any mask

if (MOD__ALT(event)) { // alt

if (MOD__SHIFT(event)) {

drag->selected_move_screen(0, mul*-10); // shift

} else {

drag->selected_move_screen(0, mul*-1); // no shift

}

} else { // no alt

if (MOD__SHIFT(event)) {

drag->selected_move(0, mul*-10*nudge); // shift

} else {

drag->selected_move(0, mul*-nudge); // no shift

}

}

ret = TRUE;

}

break;

case GDK_KEY_r:

case GDK_KEY_R:

if (MOD__SHIFT_ONLY(event)) {

sp_gradient_reverse_selected_gradients(desktop);

ret = TRUE;

}

break;

case GDK_KEY_Insert:

case GDK_KEY_KP_Insert:

// with any modifiers:

sp_gradient_context_add_stops_between_selected_stops (this);

ret = TRUE;

break;

case GDK_KEY_Delete:

case GDK_KEY_KP_Delete:

case GDK_KEY_BackSpace:

ret = this->deleteSelectedDrag(MOD__CTRL_ONLY(event));

break;

default:

break;

}

break;

case GDK_KEY_RELEASE:

switch (get_group0_keyval (&event->key)) {

case GDK_KEY_Alt_L:

case GDK_KEY_Alt_R:

case GDK_KEY_Control_L:

case GDK_KEY_Control_R:

case GDK_KEY_Shift_L:

case GDK_KEY_Shift_R:

case GDK_KEY_Meta_L: // Meta is when you press Shift+Alt

case GDK_KEY_Meta_R:

this->defaultMessageContext()->clear();

break;

default:

break;

}

break;

default:

break;

}

if (!ret) {

ret = SPEventContext::root_handler(event);

}

return ret;

}

static void sp_gradient_drag(SPGradientContext &rc, Geom::Point const pt, guint /*state*/, guint32 etime)

{

SPDesktop *desktop = SP_EVENT_CONTEXT(&rc)->desktop;

Inkscape::Selection *selection = sp_desktop_selection(desktop);

SPDocument *document = sp_desktop_document(desktop);

SPEventContext *ec = SP_EVENT_CONTEXT(&rc);

if (!selection->isEmpty()) {

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

int type = prefs->getInt("/tools/gradient/newgradient", 1);

Inkscape::PaintTarget fill_or_stroke = (prefs->getInt("/tools/gradient/newfillorstroke", 1) != 0) ? Inkscape::FOR_FILL : Inkscape::FOR_STROKE;

SPGradient *vector;

if (ec->item_to_select) {

// pick color from the object where drag started

vector = sp_gradient_vector_for_object(document, desktop, ec->item_to_select, fill_or_stroke);

} else {

// Starting from empty space:

// Sort items so that the topmost comes last

GSList *items = g_slist_copy ((GSList *) selection->itemList());

items = g_slist_sort(items, (GCompareFunc) sp_item_repr_compare_position);

// take topmost

vector = sp_gradient_vector_for_object(document, desktop, SP_ITEM(g_slist_last(items)->data), fill_or_stroke);

g_slist_free (items);

}

// HACK: reset fill-opacity - that 0.75 is annoying; BUT remove this when we have an opacity slider for all tabs

SPCSSAttr *css = sp_repr_css_attr_new();

sp_repr_css_set_property(css, "fill-opacity", "1.0");

for (GSList const *i = selection->itemList(); i != NULL; i = i->next) {

//FIXME: see above

sp_repr_css_change_recursive(SP_OBJECT(i->data)->getRepr(), css, "style");

sp_item_set_gradient(SP_ITEM(i->data), vector, (SPGradientType) type, fill_or_stroke);

if (type == SP_GRADIENT_TYPE_LINEAR) {

sp_item_gradient_set_coords (SP_ITEM(i->data), POINT_LG_BEGIN, 0, rc.origin, fill_or_stroke, true, false);

sp_item_gradient_set_coords (SP_ITEM(i->data), POINT_LG_END, 0, pt, fill_or_stroke, true, false);

} else if (type == SP_GRADIENT_TYPE_RADIAL) {

sp_item_gradient_set_coords (SP_ITEM(i->data), POINT_RG_CENTER, 0, rc.origin, fill_or_stroke, true, false);

sp_item_gradient_set_coords (SP_ITEM(i->data), POINT_RG_R1, 0, pt, fill_or_stroke, true, false);

}

SP_OBJECT(i->data)->requestModified(SP_OBJECT_MODIFIED_FLAG);

}

if (ec->_grdrag) {

ec->_grdrag->updateDraggers();

// prevent regenerating draggers by selection modified signal, which sometimes

// comes too late and thus destroys the knot which we will now grab:

ec->_grdrag->local_change = true;

// give the grab out-of-bounds values of xp/yp because we're already dragging

// and therefore are already out of tolerance

ec->_grdrag->grabKnot (SP_ITEM(selection->itemList()->data),

type == SP_GRADIENT_TYPE_LINEAR? POINT_LG_END : POINT_RG_R1,

-1, // ignore number (though it is always 1)

fill_or_stroke, 99999, 99999, etime);

}

// We did an undoable action, but SPDocumentUndo::done will be called by the knot when released

// status text; we do not track coords because this branch is run once, not all the time

// during drag

int n_objects = g_slist_length((GSList *) selection->itemList());

rc._message_context->setF(Inkscape::NORMAL_MESSAGE,

ngettext("<b>Gradient</b> for %d object; with <b>Ctrl</b> to snap angle",

"<b>Gradient</b> for %d objects; with <b>Ctrl</b> to snap angle", n_objects),

n_objects);

} else {

sp_desktop_message_stack(desktop)->flash(Inkscape::WARNING_MESSAGE, _("Select <b>objects</b> on which to create gradient."));

}

}