#define __SP_DESKTOP_EVENTS_C__

#ifdef HAVE_CONFIG_H

# include <config.h>

#endif

#include <map>

#include <string>

#include "display/guideline.h"

#include "display/snap-indicator.h"

#include "helper/unit-menu.h"

#include "helper/units.h"

#include "desktop.h"

#include "document.h"

#include "sp-guide.h"

#include "sp-namedview.h"

#include "desktop-handles.h"

#include "event-context.h"

#include "widgets/desktop-widget.h"

#include "sp-metrics.h"

#include <glibmm/i18n.h>

#include "dialogs/dialog-events.h"

#include "message-context.h"

#include "xml/repr.h"

#include "dialogs/guidelinedialog.h"

#include "snap.h"

#include "display/canvas-grid.h"

#include "display/canvas-axonomgrid.h"

#include "prefs-utils.h"

#include "helper/action.h"

#include "tools-switch.h"

#include <2geom/point.h>

static void snoop_extended(GdkEvent* event, SPDesktop *desktop);

static void init_extended();

int sp_desktop_root_handler(SPCanvasItem */*item*/, GdkEvent *event, SPDesktop *desktop)

{

static bool watch = false;

static bool first = true;

if ( first ) {

if ( prefs_get_int_attribute("options.useextinput", "value", 1)

&& prefs_get_int_attribute("options.switchonextinput", "value", 0) ) {

watch = true;

init_extended();

}

first = false;

}

if ( watch ) {

snoop_extended(event, desktop);

}

return sp_event_context_root_handler(desktop->event_context, event);

}

static gint sp_dt_ruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw, bool horiz)

{

static bool dragging = false;

static SPCanvasItem *guide = NULL;

static Geom::Point normal;

int wx, wy;

SPDesktop *desktop = dtw->desktop;

Inkscape::XML::Node *repr = SP_OBJECT_REPR(desktop->namedview);

gdk_window_get_pointer(GTK_WIDGET(dtw->canvas)->window, &wx, &wy, NULL);

NR::Point const event_win(wx, wy);

gint width, height;

gdk_window_get_geometry(GTK_WIDGET(dtw->canvas)->window, NULL /*x*/, NULL /*y*/, &width, &height, NULL/*depth*/);

switch (event->type) {

case GDK_BUTTON_PRESS:

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

dragging = true;

NR::Point const event_w(sp_canvas_window_to_world(dtw->canvas, event_win));

NR::Point const event_dt(desktop->w2d(event_w));

// explicitly show guidelines; if I draw a guide, I want them on

sp_repr_set_boolean(repr, "showguides", TRUE);

sp_repr_set_boolean(repr, "inkscape:guide-bbox", TRUE);

// calculate the normal of the guidelines when dragged from the edges of rulers.

Geom::Point normal_bl_to_tr(-1.,1.); //bottomleft to topright

Geom::Point normal_tr_to_bl(1.,1.); //topright to bottomleft

normal_bl_to_tr.normalize();

normal_tr_to_bl.normalize();

Inkscape::CanvasGrid * grid = sp_namedview_get_first_enabled_grid(desktop->namedview);

if ( grid && grid->getGridType() == Inkscape::GRID_AXONOMETRIC ) {

Inkscape::CanvasAxonomGrid *axonomgrid = dynamic_cast<Inkscape::CanvasAxonomGrid *>(grid);

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

// guidelines normal to gridlines

normal_bl_to_tr = Geom::Point::polar(-axonomgrid->angle_rad[0], 1.0);

normal_tr_to_bl = Geom::Point::polar(axonomgrid->angle_rad[2], 1.0);

} else {

normal_bl_to_tr = rot90(Geom::Point::polar(axonomgrid->angle_rad[2], 1.0));

normal_tr_to_bl = rot90(Geom::Point::polar(-axonomgrid->angle_rad[0], 1.0));

}

}

if (horiz) {

if (wx < 50) {

normal = normal_bl_to_tr;

} else if (wx > width - 50) {

normal = normal_tr_to_bl;

} else {

normal = Geom::Point(0.,1.);

}

} else {

if (wy < 50) {

normal = normal_bl_to_tr;

} else if (wy > height - 50) {

normal = normal_tr_to_bl;

} else {

normal = Geom::Point(1.,0.);

}

}

guide = sp_guideline_new(desktop->guides, event_dt.to_2geom(), normal);

sp_guideline_set_color(SP_GUIDELINE(guide), desktop->namedview->guidehicolor);

gdk_pointer_grab(widget->window, FALSE,

(GdkEventMask)(GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK ),

NULL, NULL,

event->button.time);

}

break;

case GDK_MOTION_NOTIFY:

if (dragging) {

NR::Point const event_w(sp_canvas_window_to_world(dtw->canvas, event_win));

NR::Point event_dt(desktop->w2d(event_w));

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

Inkscape::SnappedPoint snappoint = m.guideSnap(event_dt, normal);

event_dt = snappoint.getPoint();

sp_guideline_set_position(SP_GUIDELINE(guide), event_dt.to_2geom());

desktop->set_coordinate_status(event_dt);

desktop->setPosition (event_dt);

if (snappoint.getDistance() < NR_HUGE) {

desktop->snapindicator->set_new_snappoint(snappoint.getPoint().to_2geom());

} else {

desktop->snapindicator->remove_snappoint();

}

}

break;

case GDK_BUTTON_RELEASE:

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

gdk_pointer_ungrab(event->button.time);

NR::Point const event_w(sp_canvas_window_to_world(dtw->canvas, event_win));

NR::Point event_dt(desktop->w2d(event_w));

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

event_dt = m.guideSnap(event_dt, normal).getPoint();

dragging = false;

gtk_object_destroy(GTK_OBJECT(guide));

guide = NULL;

if ((horiz ? wy : wx) >= 0) {

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

Inkscape::XML::Node *repr = xml_doc->createElement("sodipodi:guide");

sp_repr_set_point(repr, "orientation", normal);

sp_repr_set_point(repr, "position", event_dt.to_2geom());

SP_OBJECT_REPR(desktop->namedview)->appendChild(repr);

Inkscape::GC::release(repr);

sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE,

_("Create guide"));

}

desktop->set_coordinate_status(event_dt);

}

default:

break;

}

return FALSE;

}

int sp_dt_hruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw)

{

return sp_dt_ruler_event(widget, event, dtw, true);

}

int sp_dt_vruler_event(GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw)

{

return sp_dt_ruler_event(widget, event, dtw, false);

}

gint sp_dt_guide_event(SPCanvasItem *item, GdkEvent *event, gpointer data)

{

static bool dragging = false;

static bool moved = false;

gint ret = FALSE;

SPGuide *guide = SP_GUIDE(data);

SPDesktop *desktop = static_cast<SPDesktop*>(gtk_object_get_data(GTK_OBJECT(item->canvas), "SPDesktop"));

switch (event->type) {

case GDK_2BUTTON_PRESS:

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

dragging = false;

sp_canvas_item_ungrab(item, event->button.time);

Inkscape::UI::Dialogs::GuidelinePropertiesDialog::showDialog(guide, desktop);

ret = TRUE;

}

break;

case GDK_BUTTON_PRESS:

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

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

SPDocument *doc = SP_OBJECT_DOCUMENT(guide);

sp_guide_remove(guide);

sp_document_done(doc, SP_VERB_NONE, _("Delete guide"));

ret = TRUE;

break;

}

dragging = true;

sp_canvas_item_grab(item,

( GDK_BUTTON_RELEASE_MASK |

GDK_BUTTON_PRESS_MASK |

GDK_POINTER_MOTION_MASK ),

NULL,

event->button.time);

ret = TRUE;

}

break;

case GDK_MOTION_NOTIFY:

if (dragging) {

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

event->motion.y);

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

// This is for snapping while dragging existing guidelines. New guidelines,

// which are dragged off the ruler, are being snapped in sp_dt_ruler_event

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

Inkscape::SnappedPoint snappoint = m.guideSnap(motion_dt, guide->normal_to_line);

motion_dt = snappoint.getPoint();

sp_guide_moveto(*guide, motion_dt.to_2geom(), false);

moved = true;

desktop->set_coordinate_status(motion_dt);

desktop->setPosition (motion_dt);

if (snappoint.getDistance() < NR_HUGE) {

desktop->snapindicator->set_new_snappoint(snappoint.getPoint().to_2geom());

} else {

desktop->snapindicator->remove_snappoint();

}

ret = TRUE;

}

break;

case GDK_BUTTON_RELEASE:

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

if (moved) {

NR::Point const event_w(event->button.x,

event->button.y);

NR::Point event_dt(desktop->w2d(event_w));

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

event_dt = m.guideSnap(event_dt, guide->normal_to_line).getPoint();

if (sp_canvas_world_pt_inside_window(item->canvas, event_w)) {

sp_guide_moveto(*guide, event_dt.to_2geom(), true);

sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE,

_("Move guide"));

} else {

/* Undo movement of any attached shapes. */

sp_guide_moveto(*guide, guide->point_on_line, false);

sp_guide_remove(guide);

sp_document_done(sp_desktop_document(desktop), SP_VERB_NONE,

_("Delete guide"));

}

moved = false;

desktop->set_coordinate_status(event_dt);

desktop->setPosition (event_dt);

}

dragging = false;

sp_canvas_item_ungrab(item, event->button.time);

ret=TRUE;

}

case GDK_ENTER_NOTIFY:

{

sp_guideline_set_color(SP_GUIDELINE(item), guide->hicolor);

char *guide_description = sp_guide_description(guide);

desktop->guidesMessageContext()->setF(Inkscape::NORMAL_MESSAGE, _("<b>Guideline</b>: %s"), guide_description);

g_free(guide_description);

break;

}

case GDK_LEAVE_NOTIFY:

sp_guideline_set_color(SP_GUIDELINE(item), guide->color);

desktop->guidesMessageContext()->clear();

break;

default:

break;

}

return ret;

}

static std::map<GdkInputSource, std::string> switchMap;

static std::map<GdkInputSource, int> toolToUse;

static std::string lastName;

static GdkInputSource lastType = GDK_SOURCE_MOUSE;

static void init_extended()

{

std::string avoidName = "pad";

GList* devices = gdk_devices_list();

if ( devices ) {

for ( GList* curr = devices; curr; curr = g_list_next(curr) ) {

GdkDevice* dev = reinterpret_cast<GdkDevice*>(curr->data);

if ( dev->name

&& (avoidName != dev->name)

&& (switchMap.find(dev->source) == switchMap.end())

&& (dev->source != GDK_SOURCE_MOUSE) ) {

switchMap[dev->source] = dev->name;

// Set the initial tool for the device

switch ( dev->source ) {

case GDK_SOURCE_PEN:

toolToUse[GDK_SOURCE_PEN] = TOOLS_CALLIGRAPHIC;

break;

case GDK_SOURCE_ERASER:

toolToUse[GDK_SOURCE_ERASER] = TOOLS_TWEAK;

break;

case GDK_SOURCE_CURSOR:

toolToUse[GDK_SOURCE_CURSOR] = TOOLS_SELECT;

break;

default:

; // do not add

}

}

}

}

}

void snoop_extended(GdkEvent* event, SPDesktop *desktop)

{

GdkInputSource source = GDK_SOURCE_MOUSE;

std::string name;

switch ( event->type ) {

case GDK_MOTION_NOTIFY:

{

GdkEventMotion* event2 = reinterpret_cast<GdkEventMotion*>(event);

if ( event2->device ) {

source = event2->device->source;

name = event2->device->name;

}

}

break;

case GDK_BUTTON_PRESS:

case GDK_2BUTTON_PRESS:

case GDK_3BUTTON_PRESS:

case GDK_BUTTON_RELEASE:

{

GdkEventButton* event2 = reinterpret_cast<GdkEventButton*>(event);

if ( event2->device ) {

source = event2->device->source;

name = event2->device->name;

}

}

break;

case GDK_SCROLL:

{

GdkEventScroll* event2 = reinterpret_cast<GdkEventScroll*>(event);

if ( event2->device ) {

source = event2->device->source;

name = event2->device->name;

}

}

break;

case GDK_PROXIMITY_IN:

case GDK_PROXIMITY_OUT:

{

GdkEventProximity* event2 = reinterpret_cast<GdkEventProximity*>(event);

if ( event2->device ) {

source = event2->device->source;

name = event2->device->name;

}

}

break;

default:

;

}

if (!name.empty()) {

if ( lastName != name || lastType != source ) {

// The device switched. See if it is one we 'count'

std::map<GdkInputSource, std::string>::iterator it = switchMap.find(source);

if ( (it != switchMap.end()) && (name == it->second) ) {

std::map<GdkInputSource, int>::iterator it2 = toolToUse.find(source);

if (it2 != toolToUse.end() ) {

// Save the tool currently selected for next time the input device shows up.

if ( (switchMap.find(lastType) != switchMap.end())

&& (lastName == switchMap.find(lastType)->second)) {

toolToUse[lastType] = tools_active(desktop);

}

tools_switch(desktop, it2->second);

}

lastName = name;

lastType = source;

}

}

}

}