#include <string.h>

#include "desktop-handles.h"

#include "selection.h"

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

#include "display/sodipodi-ctrl.h"

#include "display/sodipodi-ctrlrect.h"

#include "libnrtype/Layout-TNG.h"

#include "text-editing.h"

#include "sp-text.h"

#include "sp-flowtext.h"

#include "preferences.h"

#include "selcue.h"

Inkscape::SelCue::BoundingBoxPrefsObserver::BoundingBoxPrefsObserver(SelCue &sel_cue) :

Observer("/tools/bounding_box"),

_sel_cue(sel_cue)

{

}

void Inkscape::SelCue::BoundingBoxPrefsObserver::notify(Preferences::Entry const &val)

{

_sel_cue._boundingBoxPrefsChanged(static_cast<int>(val.getBool()));

}

Inkscape::SelCue::SelCue(SPDesktop *desktop)

: _desktop(desktop),

_bounding_box_prefs_observer(*this)

{

_selection = sp_desktop_selection(_desktop);

_sel_changed_connection = _selection->connectChanged(

sigc::hide(sigc::mem_fun(*this, &Inkscape::SelCue::_newItemBboxes))

);

{

void(SelCue::*modifiedSignal)() = &SelCue::_updateItemBboxes;

_sel_modified_connection = _selection->connectModified(

sigc::hide(sigc::hide(sigc::mem_fun(*this, modifiedSignal)))

);

}

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

_updateItemBboxes(prefs);

prefs->addObserver(_bounding_box_prefs_observer);

}

Inkscape::SelCue::~SelCue()

{

_sel_changed_connection.disconnect();

_sel_modified_connection.disconnect();

for (std::vector<SPCanvasItem*>::iterator i = _item_bboxes.begin(); i != _item_bboxes.end(); ++i) {

sp_canvas_item_destroy(*i);

}

_item_bboxes.clear();

for (std::vector<SPCanvasItem*>::iterator i = _text_baselines.begin(); i != _text_baselines.end(); ++i) {

sp_canvas_item_destroy(*i);

}

_text_baselines.clear();

}

void Inkscape::SelCue::_updateItemBboxes()

{

_updateItemBboxes(Inkscape::Preferences::get());

}

void Inkscape::SelCue::_updateItemBboxes(Inkscape::Preferences *prefs)

{

gint mode = prefs->getInt("/options/selcue/value", MARK);

if (mode == NONE) {

return;

}

g_return_if_fail(_selection != NULL);

int prefs_bbox = prefs->getBool("/tools/bounding_box");

_updateItemBboxes(mode, prefs_bbox);

}

void Inkscape::SelCue::_updateItemBboxes(gint mode, int prefs_bbox)

{

GSList const *items = _selection->itemList();

if (_item_bboxes.size() != g_slist_length((GSList *) items)) {

_newItemBboxes();

return;

}

int bcount = 0;

for (GSList const *l = _selection->itemList(); l != NULL; l = l->next) {

SPItem *item = static_cast<SPItem *>(l->data);

SPCanvasItem* box = _item_bboxes[bcount ++];

if (box) {

Geom::OptRect const b = (prefs_bbox == 0) ?

item->desktopVisualBounds() : item->desktopGeometricBounds();

if (b) {

sp_canvas_item_show(box);

if (mode == MARK) {

SP_CTRL(box)->moveto(Geom::Point(b->min()[Geom::X], b->max()[Geom::Y]));

} else if (mode == BBOX) {

SP_CTRLRECT(box)->setRectangle(*b);

}

} else { // no bbox

sp_canvas_item_hide(box);

}

}

}

_newTextBaselines();

}

void Inkscape::SelCue::_newItemBboxes()

{

for (std::vector<SPCanvasItem*>::iterator i = _item_bboxes.begin(); i != _item_bboxes.end(); ++i) {

sp_canvas_item_destroy(*i);

}

_item_bboxes.clear();

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

gint mode = prefs->getInt("/options/selcue/value", MARK);

if (mode == NONE) {

return;

}

g_return_if_fail(_selection != NULL);

int prefs_bbox = prefs->getBool("/tools/bounding_box");

for (GSList const *l = _selection->itemList(); l != NULL; l = l->next) {

SPItem *item = static_cast<SPItem *>(l->data);

Geom::OptRect const b = (prefs_bbox == 0) ?

item->desktopVisualBounds() : item->desktopGeometricBounds();

SPCanvasItem* box = NULL;

if (b) {

if (mode == MARK) {

box = sp_canvas_item_new(sp_desktop_controls(_desktop),

SP_TYPE_CTRL,

"mode", SP_CTRL_MODE_XOR,

"shape", SP_CTRL_SHAPE_DIAMOND,

"size", 5.0,

"filled", TRUE,

"fill_color", 0x000000ff,

"stroked", FALSE,

"stroke_color", 0x000000ff,

NULL);

sp_canvas_item_show(box);

SP_CTRL(box)->moveto(Geom::Point(b->min()[Geom::X], b->max()[Geom::Y]));

sp_canvas_item_move_to_z(box, 0); // just low enough to not get in the way of other draggable knots

} else if (mode == BBOX) {

box = sp_canvas_item_new(sp_desktop_controls(_desktop),

SP_TYPE_CTRLRECT,

NULL);

SP_CTRLRECT(box)->setRectangle(*b);

SP_CTRLRECT(box)->setColor(0x000000a0, 0, 0);

SP_CTRLRECT(box)->setDashed(true);

sp_canvas_item_move_to_z(box, 0);

}

}

if (box) {

_item_bboxes.push_back(box);

}

}

_newTextBaselines();

}

void Inkscape::SelCue::_newTextBaselines()

{

for (std::vector<SPCanvasItem*>::iterator i = _text_baselines.begin(); i != _text_baselines.end(); ++i) {

sp_canvas_item_destroy(*i);

}

_text_baselines.clear();

for (GSList const *l = _selection->itemList(); l != NULL; l = l->next) {

SPItem *item = static_cast<SPItem *>(l->data);

SPCanvasItem* baseline_point = NULL;

if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item)) { // visualize baseline

Inkscape::Text::Layout const *layout = te_get_layout(item);

if (layout != NULL && layout->outputExists()) {

boost::optional<Geom::Point> pt = layout->baselineAnchorPoint();

if (pt) {

baseline_point = sp_canvas_item_new(sp_desktop_controls(_desktop), SP_TYPE_CTRL,

"mode", SP_CTRL_MODE_XOR,

"size", 4.0,

"filled", 0,

"stroked", 1,

"stroke_color", 0x000000ff,

NULL);

sp_canvas_item_show(baseline_point);

SP_CTRL(baseline_point)->moveto((*pt) * item->i2dt_affine());

sp_canvas_item_move_to_z(baseline_point, 0);

}

}

}

if (baseline_point) {

_text_baselines.push_back(baseline_point);

}

}

}

void Inkscape::SelCue::_boundingBoxPrefsChanged(int prefs_bbox)

{

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

gint mode = prefs->getInt("/options/selcue/value", MARK);

if (mode == NONE) {

return;

}

g_return_if_fail(_selection != NULL);

_updateItemBboxes(mode, prefs_bbox);

}