#ifdef HAVE_CONFIG_H

# include "config.h"

#endif

#include <gdk/gdkkeysyms.h>

#include <glibmm/i18n.h>

#include "desktop.h"

#include "desktop-handles.h"

#include "document.h"

#include "document-undo.h"

#include "macros.h"

#include "message-context.h"

#include "message-stack.h"

#include "preferences.h"

#include "rubberband.h"

#include "selection.h"

#include "snap.h"

#include "sp-namedview.h"

#include "verbs.h"

#include "gradient-drag.h"

#include "gradient-chemistry.h"

#include "pixmaps/cursor-gradient.xpm"

#include "pixmaps/cursor-gradient-add.xpm"

#include "mesh-context.h"

#include "sp-mesh-gradient.h"

#include "display/sp-ctrlcurve.h"

using Inkscape::DocumentUndo;

static void sp_mesh_drag(SPMeshContext &rc, Geom::Point const pt, guint state, guint32 etime);

#include "tool-factory.h"

namespace {

SPEventContext* createMeshContext() {

return new SPMeshContext();

}

bool meshContextRegistered = ToolFactory::instance().registerObject("/tools/mesh", createMeshContext);

}

const std::string& SPMeshContext::getPrefsPath() {

return SPMeshContext::prefsPath;

}

const std::string SPMeshContext::prefsPath = "/tools/mesh";

SPMeshContext::SPMeshContext() : SPEventContext() {

this->selcon = 0;

this->_message_context = 0;

this->node_added = false;

this->subselcon = 0;

this->cursor_addnode = false;

this->cursor_shape = cursor_gradient_xpm;

this->hot_x = 4;

this->hot_y = 4;

this->xp = 0;

this->yp = 0;

this->tolerance = 6;

this->within_tolerance = false;

this->item_to_select = NULL;

}

SPMeshContext::~SPMeshContext() {

this->enableGrDrag(false);

if (this->_message_context) {

delete this->_message_context;

}

this->selcon->disconnect();

delete this->selcon;

this->subselcon->disconnect();

delete this->subselcon;

}

const gchar *ms_handle_descr [] = {

N_("Mesh gradient <b>corner</b>"),

N_("Mesh gradient <b>handle</b>"),

N_("Mesh gradient <b>tensor</b>")

};

void SPMeshContext::selection_changed(Inkscape::Selection* sel) {

GrDrag *drag = this->_grdrag;

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

if (selection == NULL) {

return;

}

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

if (!drag->isNonEmpty() || selection->isEmpty()) {

return;

}

guint n_tot = drag->numDraggers();

guint n_sel = drag->numSelected();

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

if (n_sel == 1) {

if (drag->singleSelectedDraggerNumDraggables() == 1) {

gchar * message = g_strconcat(

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

_("%s selected"),

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

ngettext(" out of %d mesh handle"," out of %d mesh handles",n_tot),

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

this->_message_context->setF(Inkscape::NORMAL_MESSAGE,

message,_(ms_handle_descr[drag->singleSelectedDraggerSingleDraggableType()]), n_tot, n_obj);

} else {

gchar * message =

g_strconcat(

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

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

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

drag->singleSelectedDraggerNumDraggables()),

ngettext(" out of %d mesh handle"," out of %d mesh handles",n_tot),

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

this->_message_context->setF(Inkscape::NORMAL_MESSAGE,message,drag->singleSelectedDraggerNumDraggables(), n_tot, n_obj);

}

} else if (n_sel > 1) {

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

gchar * message =

g_strconcat(ngettext("<b>%d</b> mesh handle selected out of %d","<b>%d</b> mesh handles selected out of %d",n_sel),

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

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

this->_message_context->setF(Inkscape::NORMAL_MESSAGE,message, n_sel, n_tot, n_obj);

} else if (n_sel == 0) {

this->_message_context->setF(Inkscape::NORMAL_MESSAGE,

//TRANSLATORS: The plural refers to number of selected objects

ngettext("<b>No</b> mesh handles selected out of %d on %d selected object",

"<b>No</b> mesh handles selected out of %d on %d selected objects",n_obj), n_tot, n_obj);

}

// FIXME

// We need to update mesh gradient handles.

// Get gradient this drag belongs too..

// std::cout << "mesh_selection_changed: selection: objects: " << n_obj << std::endl;

// GSList *itemList = (GSList *) selection->itemList();

// while( itemList ) {

// SPItem *item = SP_ITEM( itemList->data );

// // std::cout << " item: " << SP_OBJECT(item)->getId() << std::endl;

// SPStyle *style = item->style;

// if (style && (style->fill.isPaintserver())) {

// SPPaintServer *server = item->style->getFillPaintServer();

// if ( SP_IS_MESHGRADIENT(server) ) {

// SPMeshGradient *mg = SP_MESHGRADIENT(server);

// guint rows = 0;//mg->array.patches.size();

// for ( guint i = 0; i < rows; ++i ) {

// guint columns = 0;//mg->array.patches[0].size();

// for ( guint j = 0; j < columns; ++j ) {

// }

// }

// }

// }

// itemList = itemList->next;

// }

// GList* dragger_ptr = drag->draggers; // Points to GrDragger class (group of GrDraggable)

// guint count = 0;

// while( dragger_ptr ) {

// std::cout << "mesh_selection_changed: dragger: " << ++count << std::endl;

// GSList* draggable_ptr = ((GrDragger *) dragger_ptr->data)->draggables;

// while( draggable_ptr ) {

// std::cout << "mesh_selection_changed: draggable: " << draggable_ptr << std::endl;

// GrDraggable *draggable = (GrDraggable *) draggable_ptr->data;

// gint point_type = draggable->point_type;

// gint point_i = draggable->point_i;

// bool fill_or_stroke = draggable->fill_or_stroke;

// if( point_type == POINT_MG_CORNER ) {

// //std::cout << "mesh_selection_changed: POINT_MG_CORNER: " << point_i << std::endl;

// // Now we must create or destroy corresponding handles.

// if( g_list_find( drag->selected, dragger_ptr->data ) ) {

// //std::cout << "gradient_selection_changed: Selected: " << point_i << std::endl;

// // Which meshes does this point belong to?

// } else {

// //std::cout << "mesh_selection_changed: Not Selected: " << point_i << std::endl;

// }

// }

// draggable_ptr = draggable_ptr->next;

// }

// dragger_ptr = dragger_ptr->next;

// }

}

void SPMeshContext::setup() {

SPEventContext::setup();

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

if (prefs->getBool("/tools/mesh/selcue", true)) {

this->enableSelectionCue();

}

this->enableGrDrag();

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

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

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

sigc::mem_fun(this, &SPMeshContext::selection_changed)

));

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

sigc::hide(sigc::bind(

sigc::mem_fun(*this, &SPMeshContext::selection_changed),

(Inkscape::Selection*)NULL)

)

));

this->selection_changed(selection);

}

sp_mesh_context_select_next (SPEventContext *event_context)

{

GrDrag *drag = event_context->_grdrag;

g_assert (drag);

GrDragger *d = drag->select_next();

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

}

sp_mesh_context_select_prev (SPEventContext *event_context)

{

GrDrag *drag = event_context->_grdrag;

g_assert (drag);

GrDragger *d = drag->select_prev();

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

}

static bool

sp_mesh_context_is_over_line (SPMeshContext *rc, SPItem *item, Geom::Point event_p)

{

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

//Translate mouse point into proper coord system

rc->mousepoint_doc = desktop->w2d(event_p);

SPCtrlCurve *curve = SP_CTRLCURVE(item);

Geom::BezierCurveN<3> b( curve->p0, curve->p1, curve->p2, curve->p3 );

Geom::Coord coord = b.nearestPoint( rc->mousepoint_doc ); // Coord == double

Geom::Point nearest = b( coord );

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

double tolerance = (double) SP_EVENT_CONTEXT(rc)->tolerance;

bool close = (dist_screen < tolerance);

return close;

}

static void sp_mesh_context_split_near_point(SPMeshContext *rc, SPItem *item, Geom::Point mouse_p, guint32 /*etime*/)

{

#ifdef DEBUG_MESH

std::cout << "sp_mesh_context_split_near_point: entrance: " << mouse_p << std::endl;

#endif

// 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;

ec->get_drag()->addStopNearPoint (item, mouse_p, tolerance/desktop->current_zoom());

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

_("Split mesh row/column"));

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

}

static void

sp_mesh_context_corner_operation (SPMeshContext *rc, MeshCornerOperation operation )

{

#ifdef DEBUG_MESH

std::cout << "sp_mesh_corner_operation: entrance: " << operation << std::endl;

#endif

SPDocument *doc = NULL;

GrDrag *drag = rc->_grdrag;

std::map<SPMeshGradient*, std::vector<guint> > points;

std::map<SPMeshGradient*, SPItem*> items;

// Get list of selected draggers for each mesh.

// For all selected draggers

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

GrDragger *dragger = (GrDragger *) i->data;

// For all draggables of dragger

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

GrDraggable *d = (GrDraggable *) j->data;

// Only mesh corners

if( d->point_type != POINT_MG_CORNER ) continue;

// Find the gradient

SPMeshGradient *gradient = SP_MESHGRADIENT( getGradient (d->item, d->fill_or_stroke) );

// Collect points together for same gradient

points[gradient].push_back( d->point_i );

items[gradient] = d->item;

}

}

// Loop over meshes.

for( std::map<SPMeshGradient*, std::vector<guint> >::const_iterator iter = points.begin(); iter != points.end(); ++iter) {

SPMeshGradient *mg = SP_MESHGRADIENT( iter->first );

if( iter->second.size() > 0 ) {

guint noperation = 0;

switch (operation) {

case MG_CORNER_SIDE_TOGGLE:

// std::cout << "SIDE_TOGGLE" << std::endl;

noperation += mg->array.side_toggle( iter->second );

break;

case MG_CORNER_SIDE_ARC:

// std::cout << "SIDE_ARC" << std::endl;

noperation += mg->array.side_arc( iter->second );

break;

case MG_CORNER_TENSOR_TOGGLE:

// std::cout << "TENSOR_TOGGLE" << std::endl;

noperation += mg->array.tensor_toggle( iter->second );

break;

case MG_CORNER_COLOR_SMOOTH:

// std::cout << "COLOR_SMOOTH" << std::endl;

noperation += mg->array.color_smooth( iter->second );

break;

case MG_CORNER_COLOR_PICK:

// std::cout << "COLOR_PICK" << std::endl;

noperation += mg->array.color_pick( iter->second, items[iter->first] );

break;

default:

std::cout << "sp_mesh_corner_operation: unknown operation" << std::endl;

}

if( noperation > 0 ) {

mg->array.write( mg );

mg->requestModified(SP_OBJECT_MODIFIED_FLAG);

doc = mg->document;

switch (operation) {

case MG_CORNER_SIDE_TOGGLE:

DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Toggled mesh path type."));

break;

case MG_CORNER_SIDE_ARC:

DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Approximated arc for mesh side."));

break;

case MG_CORNER_TENSOR_TOGGLE:

DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Toggled mesh tensors."));

break;

case MG_CORNER_COLOR_SMOOTH:

DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Smoothed mesh corner color."));

break;

case MG_CORNER_COLOR_PICK:

DocumentUndo::done(doc, SP_VERB_CONTEXT_MESH, _("Picked mesh corner color."));

break;

default:

std::cout << "sp_mesh_corner_operation: unknown operation" << std::endl;

}

}

}

}

drag->updateDraggers();

}

gint SPMeshContext::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:

#ifdef DEBUG_MESH

std::cout << "sp_mesh_context_root_handler: GDK_2BUTTON_PRESS" << std::endl;

#endif

// Double click:

// If over a mesh line, divide mesh row/column

// If not over a line, create new gradients for selected objects.

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

// Are we over a mesh line?

bool over_line = false;

SPCtrlCurve *line = NULL;

if (drag->lines) {

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

line = (SPCtrlCurve*) l->data;

over_line |= sp_mesh_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_mesh_context_split_near_point(this, SP_ITEM(selection->itemList()->data), this->mousepoint_doc, event->button.time);

} else {

// Create a new gradient with default coordinates.

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

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

SPGradientType new_type = SP_GRADIENT_TYPE_MESH;

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

#ifdef DEBUG_MESH

std::cout << "sp_mesh_context_root_handler: creating new mesh on: " << (fsmode == Inkscape::FOR_FILL ? "Fill" : "Stroke") << std::endl;

#endif

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_MESH,

_("Create default mesh"));

}

ret = TRUE;

}

break;

case GDK_BUTTON_PRESS:

#ifdef DEBUG_MESH

std::cout << "sp_mesh_context_root_handler: GDK_BUTTON_PRESS" << std::endl;

#endif

// Button down

// If Shift key down: do rubber band selection

// Else set origin for drag. A drag creates a new gradient if one does not exist

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:

// Mouse move

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

#ifdef DEBUG_MESH

std::cout << "sp_mesh_context_root_handler: GDK_MOTION_NOTIFY: Dragging" << std::endl;

#endif

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 {

// Create new gradient with coordinates determined by drag.

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

}

gobble_motion_events(GDK_BUTTON1_MASK);

ret = TRUE;

} else {

// Not dragging

// Do snapping

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();

}

// Highlight corner node corresponding to side or tensor node

if( drag->mouseOver() ) {

// MESH FIXME: Light up corresponding corner node corresponding to node we are over.

// See "pathflash" in ui/tools/node-tool.cpp for ideas.

// Use desktop->add_temporary_canvasitem( SPCanvasItem, milliseconds );

}

// Change cursor shape if over line

bool over_line = false;

if (drag->lines) {

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

over_line |= sp_mesh_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;

sp_event_context_update_cursor(this);

this->cursor_addnode = false;

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

this->cursor_shape = cursor_gradient_add_xpm;

sp_event_context_update_cursor(this);

this->cursor_addnode = true;

}

}

break;

case GDK_BUTTON_RELEASE:

#ifdef DEBUG_MESH

std::cout << "sp_mesh_context_root_handler: GDK_BUTTON_RELEASE" << std::endl;

#endif

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

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

// Check if over line

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_mesh_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_mesh_context_split_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 mesh line, don't 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 {

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:

#ifdef DEBUG_MESH

std::cout << "sp_mesh_context_root_handler: GDK_KEY_PRESS" << std::endl;

#endif

// FIXME: tip

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,

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

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

NULL);

break;

case GDK_KEY_A:

case GDK_KEY_a:

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

drag->selectAll();

ret = TRUE;

}

break;

case GDK_KEY_Escape:

if (drag->selected) {

drag->deselectAll();

} else {

selection->clear();

}

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) { // not ctrl

gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask

if (MOD__ALT) { // alt

if (MOD__SHIFT) {

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

} else {

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

}

} else { // no alt

if (MOD__SHIFT) {

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) { // not ctrl

gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask

if (MOD__ALT) { // alt

if (MOD__SHIFT) {

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

} else {

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

}

} else { // no alt

if (MOD__SHIFT) {

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) { // not ctrl

gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask

if (MOD__ALT) { // alt

if (MOD__SHIFT) {

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

} else {

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

}

} else { // no alt

if (MOD__SHIFT) {

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) { // not ctrl

gint mul = 1 + gobble_key_events(get_group0_keyval(&event->key), 0); // with any mask

if (MOD__ALT) { // alt

if (MOD__SHIFT) {

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

} else {

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

}

} else { // no alt

if (MOD__SHIFT) {

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

} else {

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

}

}

ret = TRUE;

}

break;

case GDK_KEY_Insert:

case GDK_KEY_KP_Insert:

// with any modifiers:

//sp_gradient_context_add_stops_between_selected_stops (rc);

std::cout << "Inserting stops between selected stops not implemented yet" << std::endl;

ret = TRUE;

break;

case GDK_KEY_Delete:

case GDK_KEY_KP_Delete:

case GDK_KEY_BackSpace:

if ( drag->selected ) {

std::cout << "Deleting mesh stops not implemented yet" << std::endl;

ret = TRUE;

}

break;

// Mesh Operations --------------------------------------------

case GDK_KEY_b: // Toggle mesh side between lineto and curveto.

case GDK_KEY_B:

if (MOD__ALT && drag->isNonEmpty() && drag->hasSelection()) {

sp_mesh_context_corner_operation ( this, MG_CORNER_SIDE_TOGGLE );

ret = TRUE;

}

break;

case GDK_KEY_c: // Convert mesh side from generic Bezier to Bezier approximating arc,

case GDK_KEY_C: // preserving handle direction.

if (MOD__ALT && drag->isNonEmpty() && drag->hasSelection()) {

sp_mesh_context_corner_operation ( this, MG_CORNER_SIDE_ARC );

ret = TRUE;

}

break;

case GDK_KEY_g: // Toggle mesh tensor points on/off

case GDK_KEY_G:

if (MOD__ALT && drag->isNonEmpty() && drag->hasSelection()) {

sp_mesh_context_corner_operation ( this, MG_CORNER_TENSOR_TOGGLE );

ret = TRUE;

}

break;

case GDK_KEY_j: // Smooth corner color

case GDK_KEY_J:

if (MOD__ALT && drag->isNonEmpty() && drag->hasSelection()) {

sp_mesh_context_corner_operation ( this, MG_CORNER_COLOR_SMOOTH );

ret = TRUE;

}

break;

case GDK_KEY_k: // Pick corner color

case GDK_KEY_K:

if (MOD__ALT && drag->isNonEmpty() && drag->hasSelection()) {

sp_mesh_context_corner_operation ( this, MG_CORNER_COLOR_PICK );

ret = TRUE;

}

break;

default:

break;

}

break;

case GDK_KEY_RELEASE:

#ifdef DEBUG_MESH

std::cout << "sp_mesh_context_root_handler: GDK_KEY_RELEASE" << std::endl;

#endif

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_mesh_drag(SPMeshContext &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 = SP_GRADIENT_TYPE_MESH;

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);

// We don't need to do anything. Mesh is already sized appropriately.

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."));

}

}