#include "config.h"

#include <gdk/gdkkeysyms.h>

#include "macros.h"

#include "display/sp-canvas.h"

#include "document.h"

#include "document-undo.h"

#include "sp-namedview.h"

#include "selection.h"

#include "selection-chemistry.h"

#include "snap.h"

#include "display/curve.h"

#include "display/sp-canvas-item.h"

#include "desktop.h"

#include "message-context.h"

#include "pixmaps/cursor-3dbox.xpm"

#include "box3d.h"

#include "ui/tools/box3d-tool.h"

#include <glibmm/i18n.h>

#include "xml/repr.h"

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

#include "preferences.h"

#include "context-fns.h"

#include "desktop-style.h"

#include "transf_mat_3x4.h"

#include "perspective-line.h"

#include "persp3d.h"

#include "box3d-side.h"

#include "document-private.h"

#include "line-geometry.h"

#include "ui/shape-editor.h"

#include "verbs.h"

using Inkscape::DocumentUndo;

namespace Inkscape {

namespace UI {

namespace Tools {

const std::string& Box3dTool::getPrefsPath() {

return Box3dTool::prefsPath;

}

const std::string Box3dTool::prefsPath = "/tools/shapes/3dbox";

Box3dTool::Box3dTool()

: ToolBase(cursor_3dbox_xpm, 4, 4)

, _vpdrag(NULL)

, box3d(NULL)

, ctrl_dragged(false)

, extruded(false)

{

}

void Box3dTool::finish() {

sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate), GDK_CURRENT_TIME);

this->finishItem();

this->sel_changed_connection.disconnect();

ToolBase::finish();

}

Box3dTool::~Box3dTool() {

this->enableGrDrag(false);

delete (this->_vpdrag);

this->_vpdrag = NULL;

this->sel_changed_connection.disconnect();

delete this->shape_editor;

this->shape_editor = NULL;

/* fixme: This is necessary because we do not grab */

if (this->box3d) {

this->finishItem();

}

}

void Box3dTool::selection_changed(Inkscape::Selection* selection) {

this->shape_editor->unset_item();

this->shape_editor->set_item(selection->singleItem());

if (selection->perspList().size() == 1) {

// selecting a single box changes the current perspective

this->desktop->doc()->setCurrentPersp3D(selection->perspList().front());

}

}

static void sp_box3d_context_ensure_persp_in_defs(SPDocument *document) {

SPDefs *defs = document->getDefs();

bool has_persp = false;

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

if (SP_IS_PERSP3D(child)) {

has_persp = true;

break;

}

}

if (!has_persp) {

document->setCurrentPersp3D(persp3d_create_xml_element (document));

}

}

void Box3dTool::setup() {

ToolBase::setup();

this->shape_editor = new ShapeEditor(this->desktop);

SPItem *item = this->desktop->getSelection()->singleItem();

if (item) {

this->shape_editor->set_item(item);

}

this->sel_changed_connection.disconnect();

this->sel_changed_connection = this->desktop->getSelection()->connectChanged(

sigc::mem_fun(this, &Box3dTool::selection_changed)

);

this->_vpdrag = new Box3D::VPDrag(this->desktop->getDocument());

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

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

this->enableSelectionCue();

}

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

this->enableGrDrag();

}

}

bool Box3dTool::item_handler(SPItem* item, GdkEvent* event) {

gint ret = FALSE;

switch (event->type) {

case GDK_BUTTON_PRESS:

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

Inkscape::setup_for_drag_start(desktop, this, event);

ret = TRUE;

}

break;

// motion and release are always on root (why?)

default:

break;

}

// CPPIFY: ret is always overwritten...

ret = ToolBase::item_handler(item, event);

return ret;

}

bool Box3dTool::root_handler(GdkEvent* event) {

static bool dragging;

SPDocument *document = desktop->getDocument();

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

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

int const snaps = prefs->getInt("/options/rotationsnapsperpi/value", 12);

Persp3D *cur_persp = document->getCurrentPersp3D();

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

gint ret = FALSE;

switch (event->type) {

case GDK_BUTTON_PRESS:

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

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

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

// save drag origin

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

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

this->within_tolerance = true;

// remember clicked box3d, *not* disregarding groups (since a 3D box is a group), honoring Alt

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

dragging = true;

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

m.setup(desktop, true, this->box3d);

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

m.unSetup();

this->center = button_dt;

this->drag_origin = button_dt;

this->drag_ptB = button_dt;

this->drag_ptC = button_dt;

// This can happen after saving when the last remaining perspective was purged and must be recreated.

if (!cur_persp) {

sp_box3d_context_ensure_persp_in_defs(document);

cur_persp = document->getCurrentPersp3D();

}

/* Projective preimages of clicked point under current perspective */

this->drag_origin_proj = cur_persp->perspective_impl->tmat.preimage (button_dt, 0, Proj::Z);

this->drag_ptB_proj = this->drag_origin_proj;

this->drag_ptC_proj = this->drag_origin_proj;

this->drag_ptC_proj.normalize();

this->drag_ptC_proj[Proj::Z] = 0.25;

sp_canvas_item_grab(SP_CANVAS_ITEM(desktop->acetate),

( GDK_KEY_PRESS_MASK |

GDK_BUTTON_RELEASE_MASK |

GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK |

GDK_BUTTON_PRESS_MASK ),

NULL, event->button.time);

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 motion_dt(desktop->w2d(motion_w));

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

m.setup(desktop, true, this->box3d);

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

this->ctrl_dragged = event->motion.state & GDK_CONTROL_MASK;

if ((event->motion.state & GDK_SHIFT_MASK) && !this->extruded && this->box3d) {

// once shift is pressed, set this->extruded

this->extruded = true;

}

if (!this->extruded) {

this->drag_ptB = motion_dt;

this->drag_ptC = motion_dt;

this->drag_ptB_proj = cur_persp->perspective_impl->tmat.preimage (motion_dt, 0, Proj::Z);

this->drag_ptC_proj = this->drag_ptB_proj;

this->drag_ptC_proj.normalize();

this->drag_ptC_proj[Proj::Z] = 0.25;

} else {

// Without Ctrl, motion of the extruded corner is constrained to the

// perspective line from drag_ptB to vanishing point Y.

if (!this->ctrl_dragged) {

/* snapping */

Box3D::PerspectiveLine pline (this->drag_ptB, Proj::Z, document->getCurrentPersp3D());

this->drag_ptC = pline.closest_to (motion_dt);

this->drag_ptB_proj.normalize();

this->drag_ptC_proj = cur_persp->perspective_impl->tmat.preimage (this->drag_ptC, this->drag_ptB_proj[Proj::X], Proj::X);

} else {

this->drag_ptC = motion_dt;

this->drag_ptB_proj.normalize();

this->drag_ptC_proj = cur_persp->perspective_impl->tmat.preimage (motion_dt, this->drag_ptB_proj[Proj::X], Proj::X);

}

m.freeSnapReturnByRef(this->drag_ptC, Inkscape::SNAPSOURCE_NODE_HANDLE);

}

m.unSetup();

this->drag(event->motion.state);

ret = TRUE;

} else if (!this->sp_event_context_knot_mouseover()) {

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

m.setup(desktop);

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

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

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

m.unSetup();

}

break;

case GDK_BUTTON_RELEASE:

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

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

dragging = false;

sp_event_context_discard_delayed_snap_event(this);

if (!this->within_tolerance) {

// we've been dragging, finish the box

this->finishItem();

} else if (this->item_to_select) {

// no dragging, select clicked box3d 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

selection->clear();

}

this->item_to_select = NULL;

ret = TRUE;

sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),

event->button.time);

}

break;

case GDK_KEY_PRESS:

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

case GDK_KEY_Up:

case GDK_KEY_Down:

case GDK_KEY_KP_Up:

case GDK_KEY_KP_Down:

// prevent the zoom field from activation

if (!MOD__CTRL_ONLY(event))

ret = TRUE;

break;

case GDK_KEY_bracketright:

persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::X, -180/snaps, MOD__ALT(event));

DocumentUndo::done(document, SP_VERB_CONTEXT_3DBOX,

_("Change perspective (angle of PLs)"));

ret = true;

break;

case GDK_KEY_bracketleft:

persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::X, 180/snaps, MOD__ALT(event));

DocumentUndo::done(document, SP_VERB_CONTEXT_3DBOX,

_("Change perspective (angle of PLs)"));

ret = true;

break;

case GDK_KEY_parenright:

persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::Y, -180/snaps, MOD__ALT(event));

DocumentUndo::done(document, SP_VERB_CONTEXT_3DBOX,

_("Change perspective (angle of PLs)"));

ret = true;

break;

case GDK_KEY_parenleft:

persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::Y, 180/snaps, MOD__ALT(event));

DocumentUndo::done(document, SP_VERB_CONTEXT_3DBOX,

_("Change perspective (angle of PLs)"));

ret = true;

break;

case GDK_KEY_braceright:

persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::Z, -180/snaps, MOD__ALT(event));

DocumentUndo::done(document, SP_VERB_CONTEXT_3DBOX,

_("Change perspective (angle of PLs)"));

ret = true;

break;

case GDK_KEY_braceleft:

persp3d_rotate_VP (document->getCurrentPersp3D(), Proj::Z, 180/snaps, MOD__ALT(event));

DocumentUndo::done(document, SP_VERB_CONTEXT_3DBOX,

_("Change perspective (angle of PLs)"));

ret = true;

break;

/* TODO: what is this???

case GDK_KEY_g:

case GDK_KEY_G:

if (MOD__SHIFT_ONLY(event)) {

sp_selection_to_guides(desktop);

ret = true;

}

break;

case GDK_KEY_p:

case GDK_KEY_P:

if (MOD__SHIFT_ONLY(event)) {

if (document->getCurrentPersp3D()) {

persp3d_print_debugging_info (document->getCurrentPersp3D());

}

ret = true;

}

break;

case GDK_KEY_x:

case GDK_KEY_X:

if (MOD__ALT_ONLY(event)) {

desktop->setToolboxFocusTo ("altx-box3d");

ret = TRUE;

}

if (MOD__SHIFT_ONLY(event)) {

persp3d_toggle_VPs(selection->perspList(), Proj::X);

this->_vpdrag->updateLines(); // FIXME: Shouldn't this be done automatically?

ret = true;

}

break;

case GDK_KEY_y:

case GDK_KEY_Y:

if (MOD__SHIFT_ONLY(event)) {

persp3d_toggle_VPs(selection->perspList(), Proj::Y);

this->_vpdrag->updateLines(); // FIXME: Shouldn't this be done automatically?

ret = true;

}

break;

case GDK_KEY_z:

case GDK_KEY_Z:

if (MOD__SHIFT_ONLY(event)) {

persp3d_toggle_VPs(selection->perspList(), Proj::Z);

this->_vpdrag->updateLines(); // FIXME: Shouldn't this be done automatically?

ret = true;

}

break;

case GDK_KEY_Escape:

desktop->getSelection()->clear();

//TODO: make dragging escapable by Esc

break;

case GDK_KEY_space:

if (dragging) {

sp_canvas_item_ungrab(SP_CANVAS_ITEM(desktop->acetate),

event->button.time);

dragging = false;

sp_event_context_discard_delayed_snap_event(this);

if (!this->within_tolerance) {

// we've been dragging, finish the box

this->finishItem();

}

// do not return true, so that space would work switching to selector

}

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;

default:

break;

}

if (!ret) {

ret = ToolBase::root_handler(event);

}

return ret;

}

void Box3dTool::drag(guint /*state*/) {

if (!this->box3d) {

if (Inkscape::have_viable_layer(desktop, this->message_context) == false) {

return;

}

// Create object

SPBox3D *box3d = SPBox3D::createBox3D((SPItem*)desktop->currentLayer());

// Set style

desktop->applyCurrentOrToolStyle(box3d, "/tools/shapes/3dbox", false);

this->box3d = box3d;

// TODO: Incorporate this in box3d-side.cpp!

for (int i = 0; i < 6; ++i) {

Box3DSide *side = Box3DSide::createBox3DSide(box3d);

guint desc = Box3D::int_to_face(i);

Box3D::Axis plane = (Box3D::Axis) (desc & 0x7);

plane = (Box3D::is_plane(plane) ? plane : Box3D::orth_plane_or_axis(plane));

side->dir1 = Box3D::extract_first_axis_direction(plane);

side->dir2 = Box3D::extract_second_axis_direction(plane);

side->front_or_rear = (Box3D::FrontOrRear) (desc & 0x8);

// Set style

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

Glib::ustring descr = "/desktop/";

descr += box3d_side_axes_string(side);

descr += "/style";

Glib::ustring cur_style = prefs->getString(descr);

bool use_current = prefs->getBool("/tools/shapes/3dbox/usecurrent", false);

if (use_current && !cur_style.empty()) {

// use last used style

side->setAttribute("style", cur_style.data());

} else {

// use default style

GString *pstring = g_string_new("");

g_string_printf (pstring, "/tools/shapes/3dbox/%s", box3d_side_axes_string(side));

desktop->applyCurrentOrToolStyle (side, pstring->str, false);

}

side->updateRepr(); // calls box3d_side_write() and updates, e.g., the axes string description

}

box3d_set_z_orders(this->box3d);

this->box3d->updateRepr();

// TODO: It would be nice to show the VPs during dragging, but since there is no selection

// at this point (only after finishing the box), we must do this "manually"

/* this._vpdrag->updateDraggers(); */

desktop->canvas->forceFullRedrawAfterInterruptions(5);

}

g_assert(this->box3d);

this->box3d->orig_corner0 = this->drag_origin_proj;

this->box3d->orig_corner7 = this->drag_ptC_proj;

box3d_check_for_swapped_coords(this->box3d);

/* we need to call this from here (instead of from box3d_position_set(), for example)

box3d_set_z_orders (this->box3d);

box3d_position_set(this->box3d);

// status text

this->message_context->setF(Inkscape::NORMAL_MESSAGE, "%s", _("<b>3D Box</b>; with <b>Shift</b> to extrude along the Z axis"));

}

void Box3dTool::finishItem() {

this->message_context->clear();

this->ctrl_dragged = false;

this->extruded = false;

if (this->box3d != NULL) {

SPDocument *doc = this->desktop->getDocument();

if (!doc || !doc->getCurrentPersp3D()) {

return;

}

this->box3d->orig_corner0 = this->drag_origin_proj;

this->box3d->orig_corner7 = this->drag_ptC_proj;

this->box3d->updateRepr();

box3d_relabel_corners(this->box3d);

desktop->canvas->endForcedFullRedraws();

desktop->getSelection()->set(this->box3d);

DocumentUndo::done(desktop->getDocument(), SP_VERB_CONTEXT_3DBOX,

_("Create 3D box"));

this->box3d = NULL;

}

}

}

}

}