#define __SP_SPRAY_CONTEXT_C__

#include "config.h"

#include <gtk/gtk.h>

#include <gdk/gdkkeysyms.h>

#include <glibmm/i18n.h>

#include <numeric>

#include "svg/svg.h"

#include "display/canvas-bpath.h"

#include <glib/gmem.h>

#include "macros.h"

#include "document.h"

#include "selection.h"

#include "desktop.h"

#include "desktop-events.h"

#include "desktop-handles.h"

#include "unistd.h"

#include "desktop-style.h"

#include "message-context.h"

#include "pixmaps/cursor-spray.xpm"

#include <boost/optional.hpp>

#include "libnr/nr-matrix-ops.h"

#include "libnr/nr-scale-translate-ops.h"

#include "xml/repr.h"

#include "context-fns.h"

#include "sp-item.h"

#include "inkscape.h"

#include "color.h"

#include "svg/svg-color.h"

#include "splivarot.h"

#include "sp-item-group.h"

#include "sp-shape.h"

#include "sp-path.h"

#include "path-chemistry.h"

#include "sp-gradient.h"

#include "sp-stop.h"

#include "sp-gradient-reference.h"

#include "sp-linear-gradient.h"

#include "sp-radial-gradient.h"

#include "gradient-chemistry.h"

#include "sp-text.h"

#include "sp-flowtext.h"

#include "display/canvas-bpath.h"

#include "display/canvas-arena.h"

#include "display/curve.h"

#include "livarot/Shape.h"

#include <2geom/isnan.h>

#include <2geom/transforms.h>

#include "preferences.h"

#include "style.h"

#include "box3d.h"

#include "sp-item-transform.h"

#include "filter-chemistry.h"

#include "sp-gaussian-blur-fns.h"

#include "sp-gaussian-blur.h"

#include "spray-context.h"

#include "ui/dialog/dialog-manager.h"

#include "helper/action.h"

#include <iostream>

using namespace std;

#define DDC_RED_RGBA 0xff0000ff

#define DYNA_MIN_WIDTH 1.0e-6

static void sp_spray_context_class_init(SPSprayContextClass *klass);

static void sp_spray_context_init(SPSprayContext *ddc);

static void sp_spray_context_dispose(GObject *object);

static void sp_spray_context_setup(SPEventContext *ec);

static void sp_spray_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val);

static gint sp_spray_context_root_handler(SPEventContext *ec, GdkEvent *event);

static SPEventContextClass *parent_class = 0;

inline double NormalDistribution(double mu,double sigma)

{

// use Box Muller's algorithm

return mu + sigma * sqrt( -2.0 * log(g_random_double_range(0, 1)) ) * cos( 2.0*M_PI*g_random_double_range(0, 1) );

}

GtkType sp_spray_context_get_type(void)

{

static GType type = 0;

if (!type) {

GTypeInfo info = {

sizeof(SPSprayContextClass),

NULL, NULL,

(GClassInitFunc) sp_spray_context_class_init,

NULL, NULL,

sizeof(SPSprayContext),

4,

(GInstanceInitFunc) sp_spray_context_init,

NULL, /* value_table */

};

type = g_type_register_static(SP_TYPE_EVENT_CONTEXT, "SPSprayContext", &info, (GTypeFlags)0);

}

return type;

}

static void sp_spray_context_class_init(SPSprayContextClass *klass)

{

GObjectClass *object_class = (GObjectClass *) klass;

SPEventContextClass *event_context_class = (SPEventContextClass *) klass;

parent_class = (SPEventContextClass*)g_type_class_peek_parent(klass);

object_class->dispose = sp_spray_context_dispose;

event_context_class->setup = sp_spray_context_setup;

event_context_class->set = sp_spray_context_set;

event_context_class->root_handler = sp_spray_context_root_handler;

}

void sp_spray_rotate_rel(Geom::Point c,SPDesktop */*desktop*/,SPItem *item, Geom::Rotate const &rotation)

{

Geom::Point center = c;

Geom::Translate const s(c);

Geom::Matrix affine = Geom::Matrix(s).inverse() * Geom::Matrix(rotation) * Geom::Matrix(s);

// Rotate item.

item->set_i2d_affine(item->i2d_affine() * (Geom::Matrix)affine);

// Use each item's own transform writer, consistent with sp_selection_apply_affine()

item->doWriteTransform(SP_OBJECT_REPR(item), item->transform);

// Restore the center position (it's changed because the bbox center changed)

if (item->isCenterSet()) {

item->setCenter(c);

item->updateRepr();

}

}

void sp_spray_scale_rel(Geom::Point c, SPDesktop */*desktop*/, SPItem *item, Geom::Scale const &scale)

{

Geom::Translate const s(c);

item->set_i2d_affine(item->i2d_affine() * s.inverse() * scale * s );

item->doWriteTransform(SP_OBJECT_REPR(item), item->transform);

}

static void sp_spray_context_init(SPSprayContext *tc)

{

SPEventContext *event_context = SP_EVENT_CONTEXT(tc);

event_context->cursor_shape = cursor_spray_xpm;

event_context->hot_x = 4;

event_context->hot_y = 4;

/* attributes */

tc->dragging = FALSE;

tc->distrib = 1;

tc->width = 0.2;

tc->force = 0.2;

tc->ratio = 0;

tc->tilt=0;

tc->mean = 0.2;

tc->rotation_variation=0;

tc->standard_deviation=0.2;

tc->scale=1;

tc->scale_variation = 1;

tc->pressure = TC_DEFAULT_PRESSURE;

tc->is_dilating = false;

tc->has_dilated = false;

tc->do_h = true;

tc->do_s = true;

tc->do_l = true;

tc->do_o = false;

new (&tc->style_set_connection) sigc::connection();

}

static void sp_spray_context_dispose(GObject *object)

{

SPSprayContext *tc = SP_SPRAY_CONTEXT(object);

tc->style_set_connection.disconnect();

tc->style_set_connection.~connection();

if (tc->dilate_area) {

gtk_object_destroy(GTK_OBJECT(tc->dilate_area));

tc->dilate_area = NULL;

}

if (tc->_message_context) {

delete tc->_message_context;

}

G_OBJECT_CLASS(parent_class)->dispose(object);

}

bool is_transform_modes(gint mode)

{

return (mode == SPRAY_MODE_COPY ||

mode == SPRAY_MODE_CLONE ||

mode == SPRAY_MODE_SINGLE_PATH ||

mode == SPRAY_OPTION);

}

void sp_spray_update_cursor(SPSprayContext *tc, bool /*with_shift*/)

{

SPEventContext *event_context = SP_EVENT_CONTEXT(tc);

SPDesktop *desktop = event_context->desktop;

guint num = 0;

gchar *sel_message = NULL;

if (!desktop->selection->isEmpty()) {

num = g_slist_length((GSList *) desktop->selection->itemList());

sel_message = g_strdup_printf(ngettext("<b>%i</b> object selected","<b>%i</b> objects selected",num), num);

} else {

sel_message = g_strdup_printf(_("<b>Nothing</b> selected"));

}

switch (tc->mode) {

case SPRAY_MODE_COPY:

tc->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("%s. Drag, click or scroll to spray <b>copies</b> of the initial selection"), sel_message);

break;

case SPRAY_MODE_CLONE:

tc->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("%s. Drag, click or scroll to spray <b>clones</b> of the initial selection"), sel_message);

break;

case SPRAY_MODE_SINGLE_PATH:

tc->_message_context->setF(Inkscape::NORMAL_MESSAGE, _("%s. Drag, click or scroll to spray in a <b>single path</b> of the initial selection"), sel_message);

break;

default:

break;

}

sp_event_context_update_cursor(event_context);

g_free(sel_message);

}

static void sp_spray_context_setup(SPEventContext *ec)

{

SPSprayContext *tc = SP_SPRAY_CONTEXT(ec);

if (((SPEventContextClass *) parent_class)->setup)

((SPEventContextClass *) parent_class)->setup(ec);

{

/* TODO: have a look at sp_dyna_draw_context_setup where the same is done.. generalize? at least make it an arcto! */

SPCurve *c = new SPCurve();

const double C1 = 0.552;

c->moveto(-1,0);

c->curveto(-1, C1, -C1, 1, 0, 1 );

c->curveto(C1, 1, 1, C1, 1, 0 );

c->curveto(1, -C1, C1, -1, 0, -1 );

c->curveto(-C1, -1, -1, -C1, -1, 0 );

c->closepath();

tc->dilate_area = sp_canvas_bpath_new(sp_desktop_controls(ec->desktop), c);

c->unref();

sp_canvas_bpath_set_fill(SP_CANVAS_BPATH(tc->dilate_area), 0x00000000,(SPWindRule)0);

sp_canvas_bpath_set_stroke(SP_CANVAS_BPATH(tc->dilate_area), 0xff9900ff, 1.0, SP_STROKE_LINEJOIN_MITER, SP_STROKE_LINECAP_BUTT);

sp_canvas_item_hide(tc->dilate_area);

}

tc->is_drawing = false;

tc->_message_context = new Inkscape::MessageContext((ec->desktop)->messageStack());

sp_event_context_read(ec, "distrib");

sp_event_context_read(ec, "width");

sp_event_context_read(ec, "ratio");

sp_event_context_read(ec, "tilt");

sp_event_context_read(ec, "rotation_variation");

sp_event_context_read(ec, "scale_variation");

sp_event_context_read(ec, "mode");

sp_event_context_read(ec, "population");

sp_event_context_read(ec, "force");

sp_event_context_read(ec, "mean");

sp_event_context_read(ec, "standard_deviation");

sp_event_context_read(ec, "usepressure");

sp_event_context_read(ec, "Scale");

sp_event_context_read(ec, "doh");

sp_event_context_read(ec, "dol");

sp_event_context_read(ec, "dos");

sp_event_context_read(ec, "doo");

;

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

if (prefs->getBool("/tools/spray/selcue")) {

ec->enableSelectionCue();

}

if (prefs->getBool("/tools/spray/gradientdrag")) {

ec->enableGrDrag();

}

}

static void sp_spray_context_set(SPEventContext *ec, Inkscape::Preferences::Entry *val)

{

SPSprayContext *tc = SP_SPRAY_CONTEXT(ec);

Glib::ustring path = val->getEntryName();

if (path == "width") {

tc->width = 0.01 * CLAMP(val->getInt(10), 1, 100);

} else if (path == "mode") {

tc->mode = val->getInt();

sp_spray_update_cursor(tc, false);

} else if (path == "distribution") {

tc->distrib = val->getInt(1);

} else if (path == "population") {

tc->population = 0.01 * CLAMP(val->getInt(10), 1, 100);

} else if (path == "tilt") {

tc->tilt = CLAMP(val->getDouble(0.1), 0, 1000.0);

} else if (path == "ratio") {

tc->ratio = CLAMP(val->getDouble(), 0.0, 0.9);

} else if (path == "force") {

tc->force = CLAMP(val->getDouble(1.0), 0, 1.0);

} else if (path == "rotation_variation") {

tc->rotation_variation = CLAMP(val->getDouble(0.0), 0, 100.0);

} else if (path == "scale_variation") {

tc->scale_variation = CLAMP(val->getDouble(1.0), 0, 100.0);

} else if (path == "mean") {

tc->mean = 0.01 * CLAMP(val->getInt(10), 1, 100);

} else if (path == "standard_deviation") {

tc->standard_deviation = 0.01 * CLAMP(val->getInt(10), 1, 100);

} else if (path == "usepressure") {

tc->usepressure = val->getBool();

} else if (path == "doh") {

tc->do_h = val->getBool();

} else if (path == "dos") {

tc->do_s = val->getBool();

} else if (path == "dol") {

tc->do_l = val->getBool();

} else if (path == "doo") {

tc->do_o = val->getBool();

}

}

static void sp_spray_extinput(SPSprayContext *tc, GdkEvent *event)

{

if (gdk_event_get_axis (event, GDK_AXIS_PRESSURE, &tc->pressure))

tc->pressure = CLAMP (tc->pressure, TC_MIN_PRESSURE, TC_MAX_PRESSURE);

else

tc->pressure = TC_DEFAULT_PRESSURE;

}

double get_dilate_radius(SPSprayContext *tc)

{

return 250 * tc->width/SP_EVENT_CONTEXT(tc)->desktop->current_zoom();

}

double get_path_force(SPSprayContext *tc)

{

double force = 8 * (tc->usepressure? tc->pressure : TC_DEFAULT_PRESSURE)

/sqrt(SP_EVENT_CONTEXT(tc)->desktop->current_zoom());

if (force > 3) {

force += 4 * (force - 3);

}

return force * tc->force;

}

double get_path_mean(SPSprayContext *tc)

{

return tc->mean;

}

double get_path_standard_deviation(SPSprayContext *tc)

{

return tc->standard_deviation;

}

double get_move_force(SPSprayContext *tc)

{

double force = (tc->usepressure? tc->pressure : TC_DEFAULT_PRESSURE);

return force * tc->force;

}

double get_move_mean(SPSprayContext *tc)

{

return tc->mean;

}

double get_move_standard_deviation(SPSprayContext *tc)

{

return tc->standard_deviation;

}

void random_position( double &radius, double &angle, double &a, double &s, int /*choice*/)

{

// angle is taken from an uniform distribution

angle = g_random_double_range(0, M_PI*2.0);

// radius is taken from a Normal Distribution

double radius_temp =-1;

while(!((radius_temp>=0)&&(radius_temp<=1)))

{

radius_temp = NormalDistribution( a, s );

}

// Because we are in polar coordinates, a special treatment has to be done to the radius.

// Otherwise, positions taken from an uniform repartition on radius and angle will not seam to

// be uniformily distributed on the disk (more at the center and less at the boundary).

// We counter this effect with a 0.5 exponent. This is empiric.

radius = pow( radius_temp, 0.5);

}

bool sp_spray_recursive(SPDesktop *desktop,

Inkscape::Selection *selection,

SPItem *item,

Geom::Point p,

Geom::Point /*vector*/,

gint mode,

double radius,

double /*force*/,

double population,

double &scale,

double scale_variation,

bool /*reverse*/,

double mean,

double standard_deviation,

double ratio,

double tilt,

double rotation_variation,

gint _distrib )

{

bool did = false;

if (SP_IS_BOX3D(item) ) {

// convert 3D boxes to ordinary groups before spraying their shapes

item = SP_ITEM(box3d_convert_to_group(SP_BOX3D(item)));

selection->add(item);

}

double _fid = g_random_double_range(0,1);

double angle = g_random_double_range( - rotation_variation / 100.0 * M_PI , rotation_variation / 100.0 * M_PI );

double _scale = g_random_double_range( 1.0 - scale_variation / 100.0, 1.0 + scale_variation / 100.0 );

double dr; double dp;

random_position( dr, dp, mean, standard_deviation, _distrib );

dr=dr*radius;

if (mode == SPRAY_MODE_COPY) {

Geom::OptRect a = item->getBounds(item->i2doc_affine());

if (a) {

SPItem *item_copied;

if(_fid<=population)

{

// duplicate

SPDocument *doc = SP_OBJECT_DOCUMENT(item);

Inkscape::XML::Document* xml_doc = sp_document_repr_doc(doc);

Inkscape::XML::Node *old_repr = SP_OBJECT_REPR(item);

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

Inkscape::XML::Node *copy = old_repr->duplicate(xml_doc);

parent->appendChild(copy);

SPObject *new_obj = doc->getObjectByRepr(copy);

item_copied = (SPItem *) new_obj; //convertion object->item

Geom::Point center=item->getCenter();

sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(_scale,_scale));

sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(scale,scale));

sp_spray_rotate_rel(center,desktop,item_copied, Geom::Rotate(angle));

//Move the cursor p

Geom::Point move = (Geom::Point(cos(tilt)*cos(dp)*dr/(1-ratio)+sin(tilt)*sin(dp)*dr/(1+ratio),-sin(tilt)*cos(dp)*dr/(1-ratio)+cos(tilt)*sin(dp)*dr/(1+ratio)))+(p-a->midpoint());

sp_item_move_rel(item_copied, Geom::Translate(move[Geom::X], -move[Geom::Y]));

did = true;

}

}

} else if (mode == SPRAY_MODE_SINGLE_PATH) {

SPItem *father; //initial Object

SPItem *item_copied; //Projected Object

SPItem *unionResult; //previous union

SPItem *son; //father copy

int i=1;

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

items != NULL;

items = items->next) {

SPItem *item1 = (SPItem *) items->data;

if (i==1) {

father=item1;

}

if (i==2) {

unionResult=item1;

}

i++;

}

SPDocument *doc = SP_OBJECT_DOCUMENT(father);

Inkscape::XML::Document* xml_doc = sp_document_repr_doc(doc);

Inkscape::XML::Node *old_repr = SP_OBJECT_REPR(father);

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

Geom::OptRect a = father->getBounds(father->i2doc_affine());

if (a) {

if (i==2) {

Inkscape::XML::Node *copy1 = old_repr->duplicate(xml_doc);

parent->appendChild(copy1);

SPObject *new_obj1 = doc->getObjectByRepr(copy1);

son = (SPItem *) new_obj1; // conversion object->item

unionResult=son;

Inkscape::GC::release(copy1);

}

if (_fid<=population) { // Rules the population of objects sprayed

// duplicates the father

Inkscape::XML::Node *copy2 = old_repr->duplicate(xml_doc);

parent->appendChild(copy2);

SPObject *new_obj2 = doc->getObjectByRepr(copy2);

item_copied = (SPItem *) new_obj2;

// Move around the cursor

Geom::Point move = (Geom::Point(cos(tilt)*cos(dp)*dr/(1-ratio)+sin(tilt)*sin(dp)*dr/(1+ratio),-sin(tilt)*cos(dp)*dr/(1-ratio)+cos(tilt)*sin(dp)*dr/(1+ratio)))+(p-a->midpoint());

Geom::Point center=father->getCenter();

sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(_scale,_scale));

sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(scale,scale));

sp_spray_rotate_rel(center,desktop,item_copied, Geom::Rotate(angle));

sp_item_move_rel(item_copied, Geom::Translate(move[Geom::X], -move[Geom::Y]));

// union and duplication

selection->clear();

selection->add(item_copied);

selection->add(unionResult);

sp_selected_path_union_skip_undo(selection->desktop());

selection->add(father);

Inkscape::GC::release(copy2);

did = true;

}

}

} else if (mode == SPRAY_MODE_CLONE) {

Geom::OptRect a = item->getBounds(item->i2doc_affine());

if (a) {

if(_fid<=population) {

SPItem *item_copied;

SPDocument *doc = SP_OBJECT_DOCUMENT(item);

Inkscape::XML::Document* xml_doc = sp_document_repr_doc(doc);

Inkscape::XML::Node *old_repr = SP_OBJECT_REPR(item);

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

// Creation of the clone

Inkscape::XML::Node *clone = xml_doc->createElement("svg:use");

// Ad the clone to the list of the father's sons

parent->appendChild(clone);

// Generates the link between father and son attributes

clone->setAttribute("xlink:href", g_strdup_printf("#%s", old_repr->attribute("id")), false);

SPObject *clone_object = doc->getObjectByRepr(clone);

// conversion object->item

item_copied = (SPItem *) clone_object;

Geom::Point center=item->getCenter();

sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(_scale,_scale));

sp_spray_scale_rel(center,desktop,item_copied, Geom::Scale(scale,scale));

sp_spray_rotate_rel(center,desktop,item_copied, Geom::Rotate(angle));

Geom::Point move = (Geom::Point(cos(tilt)*cos(dp)*dr/(1-ratio)+sin(tilt)*sin(dp)*dr/(1+ratio),-sin(tilt)*cos(dp)*dr/(1-ratio)+cos(tilt)*sin(dp)*dr/(1+ratio)))+(p-a->midpoint());

sp_item_move_rel(item_copied, Geom::Translate(move[Geom::X], -move[Geom::Y]));

Inkscape::GC::release(clone);

did = true;

}

}

}

return did;

}

bool sp_spray_dilate(SPSprayContext *tc, Geom::Point /*event_p*/, Geom::Point p, Geom::Point vector, bool reverse)

{

Inkscape::Selection *selection = sp_desktop_selection(SP_EVENT_CONTEXT(tc)->desktop);

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

if (selection->isEmpty()) {

return false;

}

bool did = false;

double radius = get_dilate_radius(tc);

bool do_fill = false, do_stroke = false, do_opacity = false;

guint32 fill_goal = sp_desktop_get_color_tool(desktop, "/tools/spray", true, &do_fill);

guint32 stroke_goal = sp_desktop_get_color_tool(desktop, "/tools/spray", false, &do_stroke);

double opacity_goal = sp_desktop_get_master_opacity_tool(desktop, "/tools/spray", &do_opacity);

if (reverse) {

// RGB inversion

fill_goal = SP_RGBA32_U_COMPOSE(

(255 - SP_RGBA32_R_U(fill_goal)),

(255 - SP_RGBA32_G_U(fill_goal)),

(255 - SP_RGBA32_B_U(fill_goal)),

(255 - SP_RGBA32_A_U(fill_goal)));

stroke_goal = SP_RGBA32_U_COMPOSE(

(255 - SP_RGBA32_R_U(stroke_goal)),

(255 - SP_RGBA32_G_U(stroke_goal)),

(255 - SP_RGBA32_B_U(stroke_goal)),

(255 - SP_RGBA32_A_U(stroke_goal)));

opacity_goal = 1 - opacity_goal;

}

double path_force = get_path_force(tc);

if (radius == 0 || path_force == 0) {

return false;

}

double path_mean = get_path_mean(tc);

if (radius == 0 || path_mean == 0) {

return false;

}

double path_standard_deviation = get_path_standard_deviation(tc);

if (radius == 0 || path_standard_deviation == 0) {

return false;

}

double move_force = get_move_force(tc);

double move_mean = get_move_mean(tc);

double move_standard_deviation = get_move_standard_deviation(tc);

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

items != NULL;

items = items->next) {

SPItem *item = (SPItem *) items->data;

if (is_transform_modes(tc->mode)) {

if (sp_spray_recursive (desktop,selection, item, p, vector, tc->mode, radius, move_force, tc->population,tc->scale, tc->scale_variation, reverse, move_mean, move_standard_deviation,tc->ratio,tc->tilt, tc->rotation_variation, tc->distrib))

did = true;

} else {

if (sp_spray_recursive (desktop,selection, item, p, vector, tc->mode, radius, path_force, tc->population,tc->scale, tc->scale_variation, reverse, path_mean, path_standard_deviation,tc->ratio,tc->tilt, tc->rotation_variation, tc->distrib))

did = true;

}

}

return did;

}

void sp_spray_update_area(SPSprayContext *tc)

{

double radius = get_dilate_radius(tc);

Geom::Matrix const sm ( Geom::Scale(radius/(1-tc->ratio), radius/(1+tc->ratio)) );

sp_canvas_item_affine_absolute(tc->dilate_area, (sm* Geom::Rotate(tc->tilt))* Geom::Translate(SP_EVENT_CONTEXT(tc)->desktop->point()));

sp_canvas_item_show(tc->dilate_area);

}

void sp_spray_switch_mode(SPSprayContext *tc, gint mode, bool with_shift)

{

// select the button mode

SP_EVENT_CONTEXT(tc)->desktop->setToolboxSelectOneValue ("spray_tool_mode", mode);

// need to set explicitly, because the prefs may not have changed by the previous

tc->mode = mode;

sp_spray_update_cursor (tc, with_shift);

}

void sp_spray_switch_mode_temporarily(SPSprayContext *tc, gint mode, bool with_shift)

{

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

// Juggling about so that prefs have the old value but tc->mode and the button show new mode:

gint now_mode = prefs->getInt("/tools/spray/mode", 0);

SP_EVENT_CONTEXT(tc)->desktop->setToolboxSelectOneValue ("spray_tool_mode", mode);

// button has changed prefs, restore

prefs->setInt("/tools/spray/mode", now_mode);

// changing prefs changed tc->mode, restore back :)

tc->mode = mode;

sp_spray_update_cursor (tc, with_shift);

}

gint sp_spray_context_root_handler(SPEventContext *event_context,

GdkEvent *event)

{

SPSprayContext *tc = SP_SPRAY_CONTEXT(event_context);

SPDesktop *desktop = event_context->desktop;

gint ret = FALSE;

switch (event->type) {

case GDK_ENTER_NOTIFY:

sp_canvas_item_show(tc->dilate_area);

break;

case GDK_LEAVE_NOTIFY:

sp_canvas_item_hide(tc->dilate_area);

break;

case GDK_BUTTON_PRESS:

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

if (Inkscape::have_viable_layer(desktop, tc->_message_context) == false) {

return TRUE;

}

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

event->button.y);

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

tc->last_push = desktop->dt2doc(motion_dt);

sp_spray_extinput(tc, event);

sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 3);

tc->is_drawing = true;

tc->is_dilating = true;

tc->has_dilated = false;

if(tc->is_dilating && event->button.button == 1 && !event_context->space_panning)

sp_spray_dilate (tc, motion_w, desktop->dt2doc(motion_dt), Geom::Point(0,0), MOD__SHIFT);

tc->has_dilated=true;

ret = TRUE;

}

break;

case GDK_MOTION_NOTIFY:

{

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

event->motion.y);

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

Geom::Point motion_doc(desktop->dt2doc(motion_dt));

sp_spray_extinput(tc, event);

// draw the dilating cursor

double radius = get_dilate_radius(tc);

Geom::Matrix const sm (Geom::Scale(radius/(1-tc->ratio), radius/(1+tc->ratio)) );

sp_canvas_item_affine_absolute(tc->dilate_area, (sm*Geom::Rotate(tc->tilt))*Geom::Translate(desktop->w2d(motion_w)));

sp_canvas_item_show(tc->dilate_area);

guint num = 0;

if (!desktop->selection->isEmpty()) {

num = g_slist_length((GSList *) desktop->selection->itemList());

}

if (num == 0) {

tc->_message_context->flash(Inkscape::ERROR_MESSAGE, _("<b>Nothing selected!</b> Select objects to spray."));

}

// dilating:

if (tc->is_drawing && ( event->motion.state & GDK_BUTTON1_MASK )) {

sp_spray_dilate (tc, motion_w, motion_doc, motion_doc - tc->last_push, event->button.state & GDK_SHIFT_MASK? true : false);

//tc->last_push = motion_doc;

tc->has_dilated = true;

// it's slow, so prevent clogging up with events

gobble_motion_events(GDK_BUTTON1_MASK);

return TRUE;

}

}

break;

case GDK_SCROLL:

{

if (event->scroll.state & GDK_BUTTON1_MASK)

{

double temp ;

temp=tc->population;

tc->population=1.0;

desktop->setToolboxAdjustmentValue ("population", tc->population * 100);

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

Geom::Point const scroll_dt = desktop->point();;

Geom::Point motion_doc(desktop->dt2doc(scroll_dt));

switch (event->scroll.direction)

{

case GDK_SCROLL_UP:

{

if (Inkscape::have_viable_layer(desktop, tc->_message_context) == false)

{

return TRUE;

}

tc->last_push = desktop->dt2doc(scroll_dt);

sp_spray_extinput(tc, event);

sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 3);

tc->is_drawing = true;

tc->is_dilating = true;

tc->has_dilated = false;

if(tc->is_dilating && !event_context->space_panning)

sp_spray_dilate (tc, scroll_w, desktop->dt2doc(scroll_dt), Geom::Point(0,0),false);

tc->has_dilated=true;

tc->population=temp;

desktop->setToolboxAdjustmentValue ("population", tc->population * 100);

ret = TRUE;

}

break;

case GDK_SCROLL_DOWN:

{

if (Inkscape::have_viable_layer(desktop, tc->_message_context) == false)

{

return TRUE;

}

tc->last_push = desktop->dt2doc(scroll_dt);

sp_spray_extinput(tc, event);

sp_canvas_force_full_redraw_after_interruptions(desktop->canvas, 3);

tc->is_drawing = true;

tc->is_dilating = true;

tc->has_dilated = false;

if(tc->is_dilating && !event_context->space_panning)

sp_spray_dilate (tc, scroll_w, desktop->dt2doc(scroll_dt), Geom::Point(0,0), false);

tc->has_dilated=true;

ret = TRUE;

}

break;

case GDK_SCROLL_RIGHT:

{} break;

case GDK_SCROLL_LEFT:

{} break;

}

}

break;

}

case GDK_BUTTON_RELEASE:

{

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

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

sp_canvas_end_forced_full_redraws(desktop->canvas);

tc->is_drawing = false;

if (tc->is_dilating && event->button.button == 1 && !event_context->space_panning) {

if (!tc->has_dilated) {

// if we did not rub, do a light tap

tc->pressure = 0.03;

sp_spray_dilate (tc, motion_w, desktop->dt2doc(motion_dt), Geom::Point(0,0), MOD__SHIFT);

}

tc->is_dilating = false;

tc->has_dilated = false;

switch (tc->mode) {

case SPRAY_MODE_COPY:

sp_document_done(sp_desktop_document(SP_EVENT_CONTEXT(tc)->desktop),

SP_VERB_CONTEXT_SPRAY, _("Spray with copies"));

break;

case SPRAY_MODE_CLONE:

sp_document_done(sp_desktop_document(SP_EVENT_CONTEXT(tc)->desktop),

SP_VERB_CONTEXT_SPRAY, _("Spray with clones"));

break;

case SPRAY_MODE_SINGLE_PATH:

sp_document_done(sp_desktop_document(SP_EVENT_CONTEXT(tc)->desktop),

SP_VERB_CONTEXT_SPRAY, _("Spray in single path"));

break;

}

}

break;

}

case GDK_KEY_PRESS:

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

case GDK_j: if (MOD__SHIFT_ONLY) {

sp_spray_switch_mode(tc, SPRAY_MODE_COPY, MOD__SHIFT);

ret = TRUE;

}

case GDK_J: if (MOD__SHIFT_ONLY) {

sp_spray_switch_mode(tc, SPRAY_MODE_COPY, MOD__SHIFT);

ret = TRUE;

}

break;

case GDK_m:

case GDK_M:

case GDK_0:

break;

case GDK_i:

case GDK_I:

case GDK_k: if (MOD__SHIFT_ONLY) {

sp_spray_switch_mode(tc, SPRAY_MODE_SINGLE_PATH, MOD__SHIFT);

ret = TRUE;

}

case GDK_K:if (MOD__SHIFT_ONLY) {

sp_spray_switch_mode(tc, SPRAY_MODE_SINGLE_PATH, MOD__SHIFT);

ret = TRUE;

}

break;

case GDK_l: if (MOD__SHIFT_ONLY) {

sp_spray_switch_mode(tc, SPRAY_MODE_CLONE, MOD__SHIFT);

ret = TRUE;

}

case GDK_L:

if (MOD__SHIFT_ONLY) {

sp_spray_switch_mode(tc, SPRAY_MODE_CLONE, MOD__SHIFT);

ret = TRUE;

}

break;

case GDK_Up:

case GDK_KP_Up:

if (!MOD__CTRL_ONLY) {

tc->scale += 0.05;

//desktop->setToolboxAdjustmentValue ("spray-force", tc->force * 100);

ret = TRUE;

}

break;

case GDK_Down:

case GDK_KP_Down:

if (!MOD__CTRL_ONLY) {

tc->scale -= 0.05;

if (tc->scale < 0.0)

tc->scale = 0.0;

//desktop->setToolboxAdjustmentValue ("spray-force", tc->force * 100);

ret = TRUE;

}

break;

case GDK_Right:

case GDK_KP_Right:

if (!MOD__CTRL_ONLY) {

tc->width += 0.01;

if (tc->width > 1.0)

tc->width = 1.0;

desktop->setToolboxAdjustmentValue ("altx-spray", tc->width * 100); // the same spinbutton is for alt+x

sp_spray_update_area(tc);

ret = TRUE;

}

break;

case GDK_Left:

case GDK_KP_Left:

if (!MOD__CTRL_ONLY) {

tc->width -= 0.01;

if (tc->width < 0.01)

tc->width = 0.01;

desktop->setToolboxAdjustmentValue ("altx-spray", tc->width * 100);

sp_spray_update_area(tc);

ret = TRUE;

}

break;

case GDK_Home:

case GDK_KP_Home:

tc->width = 0.01;

desktop->setToolboxAdjustmentValue ("altx-spray", tc->width * 100);

sp_spray_update_area(tc);

ret = TRUE;

break;

case GDK_End:

case GDK_KP_End:

tc->width = 1.0;

desktop->setToolboxAdjustmentValue ("altx-spray", tc->width * 100);

sp_spray_update_area(tc);

ret = TRUE;

break;

case GDK_x:

case GDK_X:

if (MOD__ALT_ONLY) {

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

ret = TRUE;

}

break;

case GDK_Shift_L:

case GDK_Shift_R:

sp_spray_update_cursor(tc, true);

break;

case GDK_Control_L:

tc->scale=1;

default:

break;

}

break;

case GDK_KEY_RELEASE: {

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

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

case GDK_Shift_L:

case GDK_Shift_R:

sp_spray_update_cursor(tc, false);

break;

case GDK_Control_L:

case GDK_Control_R:

sp_spray_switch_mode (tc, prefs->getInt("/tools/spray/mode"), MOD__SHIFT);

tc->_message_context->clear();

break;

default:

sp_spray_switch_mode (tc, prefs->getInt("/tools/spray/mode"), MOD__SHIFT);

break;

}

}

default:

break;

}

if (!ret) {

if (((SPEventContextClass *) parent_class)->root_handler) {

ret = ((SPEventContextClass *) parent_class)->root_handler(event_context, event);

}

}

return ret;

}