#ifdef HAVE_CONFIG_H

# include <config.h>

#endif

#include <gtkmm/stock.h>

#include <gtkmm/dialog.h>

#include <2geom/transforms.h>

#include "document.h"

#include "desktop-handles.h"

#include "transformation.h"

#include "align-and-distribute.h"

#include "inkscape.h"

#include "selection.h"

#include "selection-chemistry.h"

#include "verbs.h"

#include "preferences.h"

#include "sp-namedview.h"

#include "sp-item-transform.h"

#include "macros.h"

#include "sp-item.h"

#include "util/glib-list-iterators.h"

namespace Inkscape {

namespace UI {

namespace Dialog {

void on_selection_changed(Inkscape::Application */*inkscape*/, Inkscape::Selection *selection, Transformation *daad)

{

int page = daad->getCurrentPage();

daad->updateSelection((Inkscape::UI::Dialog::Transformation::PageType)page, selection);

}

void on_selection_modified( Inkscape::Application */*inkscape*/,

Inkscape::Selection *selection,

guint /*flags*/,

Transformation *daad )

{

int page = daad->getCurrentPage();

daad->updateSelection((Inkscape::UI::Dialog::Transformation::PageType)page, selection);

}

Transformation::Transformation()

: UI::Widget::Panel ("", "/dialogs/transformation", SP_VERB_DIALOG_TRANSFORM),

_page_move (4, 2),

_page_scale (4, 2),

_page_rotate (4, 2),

_page_skew (4, 2),

_page_transform (3, 3),

_scalar_move_horizontal (_("_Horizontal:"), _("Horizontal displacement (relative) or position (absolute)"), UNIT_TYPE_LINEAR,

"", "transform-move-horizontal", &_units_move),

_scalar_move_vertical (_("_Vertical:"), _("Vertical displacement (relative) or position (absolute)"), UNIT_TYPE_LINEAR,

"", "transform-move-vertical", &_units_move),

_scalar_scale_horizontal(_("_Width:"), _("Horizontal size (absolute or percentage of current)"), UNIT_TYPE_DIMENSIONLESS,

"", "transform-scale-horizontal", &_units_scale),

_scalar_scale_vertical (_("_Height:"), _("Vertical size (absolute or percentage of current)"), UNIT_TYPE_DIMENSIONLESS,

"", "transform-scale-vertical", &_units_scale),

_scalar_rotate (_("A_ngle:"), _("Rotation angle (positive = counterclockwise)"), UNIT_TYPE_RADIAL,

"", "transform-rotate", &_units_rotate),

_scalar_skew_horizontal (_("_Horizontal:"), _("Horizontal skew angle (positive = counterclockwise), or absolute displacement, or percentage displacement"), UNIT_TYPE_LINEAR,

"", "transform-skew-horizontal", &_units_skew),

_scalar_skew_vertical (_("_Vertical:"), _("Vertical skew angle (positive = counterclockwise), or absolute displacement, or percentage displacement"), UNIT_TYPE_LINEAR,

"", "transform-skew-vertical", &_units_skew),

_scalar_transform_a ("_A:", _("Transformation matrix element A")),

_scalar_transform_b ("_B:", _("Transformation matrix element B")),

_scalar_transform_c ("_C:", _("Transformation matrix element C")),

_scalar_transform_d ("_D:", _("Transformation matrix element D")),

_scalar_transform_e ("_E:", _("Transformation matrix element E")),

_scalar_transform_f ("_F:", _("Transformation matrix element F")),

_check_move_relative (_("Rela_tive move"), _("Add the specified relative displacement to the current position; otherwise, edit the current absolute position directly")),

_check_scale_proportional (_("_Scale proportionally"), _("Preserve the width/height ratio of the scaled objects")),

_check_apply_separately (_("Apply to each _object separately"), _("Apply the scale/rotate/skew to each selected object separately; otherwise, transform the selection as a whole")),

_check_replace_matrix (_("Edit c_urrent matrix"), _("Edit the current transform= matrix; otherwise, post-multiply transform= by this matrix"))

{

Gtk::Box *contents = _getContents();

contents->set_spacing(0);

// Notebook for individual transformations

contents->pack_start(_notebook, true, true);

_notebook.append_page(_page_move, _("_Move"), true);

layoutPageMove();

_notebook.append_page(_page_scale, _("_Scale"), true);

layoutPageScale();

_notebook.append_page(_page_rotate, _("_Rotate"), true);

layoutPageRotate();

_notebook.append_page(_page_skew, _("Ske_w"), true);

layoutPageSkew();

_notebook.append_page(_page_transform, _("Matri_x"), true);

layoutPageTransform();

_notebook.signal_switch_page().connect(sigc::mem_fun(*this, &Transformation::onSwitchPage));

// Apply separately

contents->pack_start(_check_apply_separately, true, true);

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

_check_apply_separately.set_active(prefs->getBool("/dialogs/transformation/applyseparately"));

_check_apply_separately.signal_toggled().connect(sigc::mem_fun(*this, &Transformation::onApplySeparatelyToggled));

// make sure all spinbuttons activate Apply on pressing Enter

((Gtk::Entry *) (_scalar_move_horizontal.getWidget()))->set_activates_default(true);

((Gtk::Entry *) (_scalar_move_vertical.getWidget()))->set_activates_default(true);

((Gtk::Entry *) (_scalar_scale_horizontal.getWidget()))->set_activates_default(true);

((Gtk::Entry *) (_scalar_scale_vertical.getWidget()))->set_activates_default(true);

((Gtk::Entry *) (_scalar_rotate.getWidget()))->set_activates_default(true);

((Gtk::Entry *) (_scalar_skew_horizontal.getWidget()))->set_activates_default(true);

((Gtk::Entry *) (_scalar_skew_vertical.getWidget()))->set_activates_default(true);

updateSelection(PAGE_MOVE, _getSelection());

resetButton = addResponseButton(Gtk::Stock::CLEAR, 0);

if (resetButton) {

_tooltips.set_tip((*resetButton), _("Reset the values on the current tab to defaults"));

resetButton->set_sensitive(true);

resetButton->signal_clicked().connect(sigc::mem_fun(*this, &Transformation::onClear));

}

applyButton = addResponseButton(Gtk::Stock::APPLY, Gtk::RESPONSE_APPLY);

if (applyButton) {

_tooltips.set_tip((*applyButton), _("Apply transformation to selection"));

applyButton->set_sensitive(false);

}

// Connect to the global selection changed & modified signals

g_signal_connect (G_OBJECT (INKSCAPE), "change_selection", G_CALLBACK (on_selection_changed), this);

g_signal_connect (G_OBJECT (INKSCAPE), "modify_selection", G_CALLBACK (on_selection_modified), this);

show_all_children();

}

Transformation::~Transformation()

{

sp_signal_disconnect_by_data (G_OBJECT (INKSCAPE), this);

}

Transformation::presentPage(Transformation::PageType page)

{

_notebook.set_current_page(page);

show();

present();

}

Transformation::layoutPageMove()

{

_units_move.setUnitType(UNIT_TYPE_LINEAR);

// Setting default unit to document unit

SPDesktop *dt = getDesktop();

SPNamedView *nv = sp_desktop_namedview(dt);

if (nv->doc_units) {

_units_move.setUnit(nv->doc_units->abbr);

}

_scalar_move_horizontal.initScalar(-1e6, 1e6);

_scalar_move_horizontal.setDigits(3);

_scalar_move_horizontal.setIncrements(0.1, 1.0);

_scalar_move_vertical.initScalar(-1e6, 1e6);

_scalar_move_vertical.setDigits(3);

_scalar_move_vertical.setIncrements(0.1, 1.0);

//_scalar_move_vertical.set_label_image( INKSCAPE_STOCK_ARROWS_HOR );

_page_move.table()

.attach(_scalar_move_horizontal, 0, 2, 0, 1, Gtk::FILL, Gtk::SHRINK);

_page_move.table()

.attach(_units_move, 2, 3, 0, 1, Gtk::SHRINK, Gtk::SHRINK);

_scalar_move_horizontal.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onMoveValueChanged));

//_scalar_move_vertical.set_label_image( INKSCAPE_STOCK_ARROWS_VER );

_page_move.table()

.attach(_scalar_move_vertical, 0, 2, 1, 2, Gtk::FILL, Gtk::SHRINK);

_scalar_move_vertical.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onMoveValueChanged));

// Relative moves

_page_move.table()

.attach(_check_move_relative, 0, 2, 2, 3, Gtk::FILL, Gtk::SHRINK);

_check_move_relative.set_active(true);

_check_move_relative.signal_toggled()

.connect(sigc::mem_fun(*this, &Transformation::onMoveRelativeToggled));

}

Transformation::layoutPageScale()

{

_units_scale.setUnitType(UNIT_TYPE_DIMENSIONLESS);

_units_scale.setUnitType(UNIT_TYPE_LINEAR);

_scalar_scale_horizontal.initScalar(-1e6, 1e6);

_scalar_scale_horizontal.setValue(100.0, "%");

_scalar_scale_horizontal.setDigits(3);

_scalar_scale_horizontal.setIncrements(0.1, 1.0);

_scalar_scale_horizontal.setAbsoluteIsIncrement(true);

_scalar_scale_horizontal.setPercentageIsIncrement(true);

_scalar_scale_vertical.initScalar(-1e6, 1e6);

_scalar_scale_vertical.setValue(100.0, "%");

_scalar_scale_vertical.setDigits(3);

_scalar_scale_vertical.setIncrements(0.1, 1.0);

_scalar_scale_vertical.setAbsoluteIsIncrement(true);

_scalar_scale_vertical.setPercentageIsIncrement(true);

_page_scale.table()

.attach(_scalar_scale_horizontal, 0, 2, 0, 1, Gtk::FILL, Gtk::SHRINK);

_scalar_scale_horizontal.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onScaleXValueChanged));

_page_scale.table()

.attach(_units_scale, 2, 3, 0, 1, Gtk::SHRINK, Gtk::SHRINK);

_page_scale.table()

.attach(_scalar_scale_vertical, 0, 2, 1, 2, Gtk::FILL, Gtk::SHRINK);

_scalar_scale_vertical.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onScaleYValueChanged));

_page_scale.table()

.attach(_check_scale_proportional, 0, 2, 2, 3, Gtk::FILL, Gtk::SHRINK);

_check_scale_proportional.set_active(false);

_check_scale_proportional.signal_toggled()

.connect(sigc::mem_fun(*this, &Transformation::onScaleProportionalToggled));

//TODO: add a widget for selecting the fixed point in scaling, or honour rotation center?

}

Transformation::layoutPageRotate()

{

_units_rotate.setUnitType(UNIT_TYPE_RADIAL);

_scalar_rotate.initScalar(-360.0, 360.0);

_scalar_rotate.setDigits(3);

_scalar_rotate.setIncrements(0.1, 1.0);

_page_rotate.table()

.attach(_scalar_rotate, 0, 2, 0, 1, Gtk::FILL, Gtk::SHRINK);

_page_rotate.table()

.attach(_units_rotate, 2, 3, 0, 1, Gtk::SHRINK, Gtk::SHRINK);

_scalar_rotate.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onRotateValueChanged));

//TODO: honour rotation center?

}

Transformation::layoutPageSkew()

{

_units_skew.setUnitType(UNIT_TYPE_LINEAR);

_units_skew.setUnitType(UNIT_TYPE_DIMENSIONLESS);

_units_skew.setUnitType(UNIT_TYPE_RADIAL);

_scalar_skew_horizontal.initScalar(-1e6, 1e6);

_scalar_skew_horizontal.setDigits(3);

_scalar_skew_horizontal.setIncrements(0.1, 1.0);

_scalar_skew_vertical.initScalar(-1e6, 1e6);

_scalar_skew_vertical.setDigits(3);

_scalar_skew_vertical.setIncrements(0.1, 1.0);

_page_skew.table()

.attach(_scalar_skew_horizontal, 0, 2, 0, 1, Gtk::FILL, Gtk::SHRINK);

_scalar_skew_horizontal.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onSkewValueChanged));

_page_skew.table()

.attach(_units_skew, 2, 3, 0, 1, Gtk::SHRINK, Gtk::SHRINK);

_page_skew.table()

.attach(_scalar_skew_vertical, 0, 2, 1, 2, Gtk::FILL, Gtk::SHRINK);

_scalar_skew_vertical.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onSkewValueChanged));

//TODO: honour rotation center?

}

Transformation::layoutPageTransform()

{

_scalar_transform_a.setWidgetSizeRequest(65, -1);

_scalar_transform_a.setRange(-1e10, 1e10);

_scalar_transform_a.setDigits(3);

_scalar_transform_a.setIncrements(0.1, 1.0);

_scalar_transform_a.setValue(1.0);

_page_transform.table()

.attach(_scalar_transform_a, 0, 1, 0, 1, Gtk::SHRINK, Gtk::SHRINK);

_scalar_transform_a.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onTransformValueChanged));

_scalar_transform_b.setWidgetSizeRequest(65, -1);

_scalar_transform_b.setRange(-1e10, 1e10);

_scalar_transform_b.setDigits(3);

_scalar_transform_b.setIncrements(0.1, 1.0);

_scalar_transform_b.setValue(0.0);

_page_transform.table()

.attach(_scalar_transform_b, 0, 1, 1, 2, Gtk::SHRINK, Gtk::SHRINK);

_scalar_transform_b.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onTransformValueChanged));

_scalar_transform_c.setWidgetSizeRequest(65, -1);

_scalar_transform_c.setRange(-1e10, 1e10);

_scalar_transform_c.setDigits(3);

_scalar_transform_c.setIncrements(0.1, 1.0);

_scalar_transform_c.setValue(0.0);

_page_transform.table()

.attach(_scalar_transform_c, 1, 2, 0, 1, Gtk::SHRINK, Gtk::SHRINK);

_scalar_transform_c.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onTransformValueChanged));

_scalar_transform_d.setWidgetSizeRequest(65, -1);

_scalar_transform_d.setRange(-1e10, 1e10);

_scalar_transform_d.setDigits(3);

_scalar_transform_d.setIncrements(0.1, 1.0);

_scalar_transform_d.setValue(1.0);

_page_transform.table()

.attach(_scalar_transform_d, 1, 2, 1, 2, Gtk::SHRINK, Gtk::SHRINK);

_scalar_transform_d.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onTransformValueChanged));

_scalar_transform_e.setWidgetSizeRequest(65, -1);

_scalar_transform_e.setRange(-1e10, 1e10);

_scalar_transform_e.setDigits(3);

_scalar_transform_e.setIncrements(0.1, 1.0);

_scalar_transform_e.setValue(0.0);

_page_transform.table()

.attach(_scalar_transform_e, 2, 3, 0, 1, Gtk::SHRINK, Gtk::SHRINK);

_scalar_transform_e.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onTransformValueChanged));

_scalar_transform_f.setWidgetSizeRequest(65, -1);

_scalar_transform_f.setRange(-1e10, 1e10);

_scalar_transform_f.setDigits(3);

_scalar_transform_f.setIncrements(0.1, 1.0);

_scalar_transform_f.setValue(0.0);

_page_transform.table()

.attach(_scalar_transform_f, 2, 3, 1, 2, Gtk::SHRINK, Gtk::SHRINK);

_scalar_transform_f.signal_value_changed()

.connect(sigc::mem_fun(*this, &Transformation::onTransformValueChanged));

// Edit existing matrix

_page_transform.table()

.attach(_check_replace_matrix, 0, 2, 2, 3, Gtk::FILL, Gtk::SHRINK);

_check_replace_matrix.set_active(false);

_check_replace_matrix.signal_toggled()

.connect(sigc::mem_fun(*this, &Transformation::onReplaceMatrixToggled));

}

Transformation::updateSelection(PageType page, Inkscape::Selection *selection)

{

if (!selection || selection->isEmpty())

return;

switch (page) {

case PAGE_MOVE: {

updatePageMove(selection);

break;

}

case PAGE_SCALE: {

updatePageScale(selection);

break;

}

case PAGE_ROTATE: {

updatePageRotate(selection);

break;

}

case PAGE_SKEW: {

updatePageSkew(selection);

break;

}

case PAGE_TRANSFORM: {

updatePageTransform(selection);

break;

}

case PAGE_QTY: {

break;

}

}

setResponseSensitive(Gtk::RESPONSE_APPLY,

selection && !selection->isEmpty());

}

Transformation::onSwitchPage(GtkNotebookPage */*page*/,

guint pagenum)

{

updateSelection((PageType)pagenum, sp_desktop_selection(getDesktop()));

}

Transformation::updatePageMove(Inkscape::Selection *selection)

{

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

if (!_check_move_relative.get_active()) {

Geom::OptRect bbox = selection->preferredBounds();

if (bbox) {

double x = bbox->min()[Geom::X];

double y = bbox->min()[Geom::Y];

double conversion = _units_move.getConversion("px");

_scalar_move_horizontal.setValue(x / conversion);

_scalar_move_vertical.setValue(y / conversion);

}

} else {

// do nothing, so you can apply the same relative move to many objects in turn

}

_page_move.set_sensitive(true);

} else {

_page_move.set_sensitive(false);

}

}

Transformation::updatePageScale(Inkscape::Selection *selection)

{

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

Geom::OptRect bbox = selection->preferredBounds();

if (bbox) {

double w = bbox->dimensions()[Geom::X];

double h = bbox->dimensions()[Geom::Y];

_scalar_scale_horizontal.setHundredPercent(w);

_scalar_scale_vertical.setHundredPercent(h);

onScaleXValueChanged(); // to update x/y proportionality if switch is on

_page_scale.set_sensitive(true);

} else {

_page_scale.set_sensitive(false);

}

} else {

_page_scale.set_sensitive(false);

}

}

Transformation::updatePageRotate(Inkscape::Selection *selection)

{

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

_page_rotate.set_sensitive(true);

} else {

_page_rotate.set_sensitive(false);

}

}

Transformation::updatePageSkew(Inkscape::Selection *selection)

{

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

Geom::OptRect bbox = selection->preferredBounds();

if (bbox) {

double w = bbox->dimensions()[Geom::X];

double h = bbox->dimensions()[Geom::Y];

_scalar_skew_vertical.setHundredPercent(w);

_scalar_skew_horizontal.setHundredPercent(h);

_page_skew.set_sensitive(true);

} else {

_page_skew.set_sensitive(false);

}

} else {

_page_skew.set_sensitive(false);

}

}

Transformation::updatePageTransform(Inkscape::Selection *selection)

{

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

if (_check_replace_matrix.get_active()) {

Geom::Affine current (SP_ITEM(selection->itemList()->data)->transform); // take from the first item in selection

Geom::Affine new_displayed = current;

_scalar_transform_a.setValue(new_displayed[0]);

_scalar_transform_b.setValue(new_displayed[1]);

_scalar_transform_c.setValue(new_displayed[2]);

_scalar_transform_d.setValue(new_displayed[3]);

_scalar_transform_e.setValue(new_displayed[4]);

_scalar_transform_f.setValue(new_displayed[5]);

} else {

// do nothing, so you can apply the same matrix to many objects in turn

}

_page_transform.set_sensitive(true);

} else {

_page_transform.set_sensitive(false);

}

}

Transformation::_apply()

{

Inkscape::Selection * const selection = _getSelection();

if (!selection || selection->isEmpty())

return;

int const page = _notebook.get_current_page();

switch (page) {

case PAGE_MOVE: {

applyPageMove(selection);

break;

}

case PAGE_ROTATE: {

applyPageRotate(selection);

break;

}

case PAGE_SCALE: {

applyPageScale(selection);

break;

}

case PAGE_SKEW: {

applyPageSkew(selection);

break;

}

case PAGE_TRANSFORM: {

applyPageTransform(selection);

break;

}

}

//Let's play with never turning this off

//setResponseSensitive(Gtk::RESPONSE_APPLY, false);

}

Transformation::applyPageMove(Inkscape::Selection *selection)

{

double x = _scalar_move_horizontal.getValue("px");

double y = _scalar_move_vertical.getValue("px");

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

if (!prefs->getBool("/dialogs/transformation/applyseparately")) {

// move selection as a whole

if (_check_move_relative.get_active()) {

sp_selection_move_relative(selection, x, y);

} else {

Geom::OptRect bbox = selection->preferredBounds();

if (bbox) {

sp_selection_move_relative(selection,

x - bbox->min()[Geom::X], y - bbox->min()[Geom::Y]);

}

}

} else {

if (_check_move_relative.get_active()) {

// shift each object relatively to the previous one

using Inkscape::Util::GSListConstIterator;

std::list<SPItem *> selected;

selected.insert<GSListConstIterator<SPItem *> >(selected.end(), selection->itemList(), NULL);

if (selected.empty()) return;

if (fabs(x) > 1e-6) {

std::vector< BBoxSort > sorted;

for (std::list<SPItem *>::iterator it(selected.begin());

it != selected.end();

++it)

{

Geom::OptRect bbox = (*it)->desktopPreferredBounds();

if (bbox) {

sorted.push_back(BBoxSort(*it, *bbox, Geom::X, x > 0? 1. : 0., x > 0? 0. : 1.));

}

}

//sort bbox by anchors

std::sort(sorted.begin(), sorted.end());

double move = x;

for ( std::vector<BBoxSort> ::iterator it (sorted.begin());

it < sorted.end();

it ++ )

{

sp_item_move_rel(it->item, Geom::Translate(move, 0));

// move each next object by x relative to previous

move += x;

}

}

if (fabs(y) > 1e-6) {

std::vector< BBoxSort > sorted;

for (std::list<SPItem *>::iterator it(selected.begin());

it != selected.end();

++it)

{

Geom::OptRect bbox = (*it)->desktopPreferredBounds();

if (bbox) {

sorted.push_back(BBoxSort(*it, *bbox, Geom::Y, y > 0? 1. : 0., y > 0? 0. : 1.));

}

}

//sort bbox by anchors

std::sort(sorted.begin(), sorted.end());

double move = y;

for ( std::vector<BBoxSort> ::iterator it (sorted.begin());

it < sorted.end();

it ++ )

{

sp_item_move_rel(it->item, Geom::Translate(0, move));

// move each next object by x relative to previous

move += y;

}

}

} else {

Geom::OptRect bbox = selection->preferredBounds();

if (bbox) {

sp_selection_move_relative(selection,

x - bbox->min()[Geom::X], y - bbox->min()[Geom::Y]);

}

}

}

DocumentUndo::done( sp_desktop_document(selection->desktop()) , SP_VERB_DIALOG_TRANSFORM,

_("Move"));

}

Transformation::applyPageScale(Inkscape::Selection *selection)

{

double scaleX = _scalar_scale_horizontal.getValue("px");

double scaleY = _scalar_scale_vertical.getValue("px");

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

int transform_stroke = prefs->getBool("/options/transform/stroke", true) ? 1 : 0;

if (prefs->getBool("/dialogs/transformation/applyseparately")) {

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

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

Geom::OptRect bbox_pref = item->desktopPreferredBounds();

Geom::OptRect bbox_geom = item->desktopGeometricBounds();

if (bbox_pref && bbox_geom) {

double new_width = scaleX;

double new_height = scaleY;

// the values are increments!

if (!_units_scale.isAbsolute()) { // Relative scaling, i.e in percent

new_width = scaleX/100 * bbox_pref->width();

new_height = scaleY/100 * bbox_pref->height();

}

if (fabs(new_width) < 1e-6) new_width = 1e-6; // not 0, as this would result in a nasty no-bbox object

if (fabs(new_height) < 1e-6) new_height = 1e-6;

double x0 = bbox_pref->midpoint()[Geom::X] - new_width/2;

double y0 = bbox_pref->midpoint()[Geom::Y] - new_height/2;

double x1 = bbox_pref->midpoint()[Geom::X] + new_width/2;

double y1 = bbox_pref->midpoint()[Geom::Y] + new_height/2;

Geom::Affine scaler = get_scale_transform_for_variable_stroke (*bbox_pref, *bbox_geom, transform_stroke, x0, y0, x1, y1);

item->set_i2d_affine(item->i2dt_affine() * scaler);

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

}

}

} else {

Geom::OptRect bbox_pref = selection->preferredBounds();

Geom::OptRect bbox_geom = selection->geometricBounds();

if (bbox_pref && bbox_geom) {

// the values are increments!

double new_width = scaleX;

double new_height = scaleY;

if (!_units_scale.isAbsolute()) { // Relative scaling, i.e in percent

new_width = scaleX/100 * bbox_pref->width();

new_height = scaleY/100 * bbox_pref->height();

}

if (fabs(new_width) < 1e-6) new_width = 1e-6;

if (fabs(new_height) < 1e-6) new_height = 1e-6;

double x0 = bbox_pref->midpoint()[Geom::X] - new_width/2;

double y0 = bbox_pref->midpoint()[Geom::Y] - new_height/2;

double x1 = bbox_pref->midpoint()[Geom::X] + new_width/2;

double y1 = bbox_pref->midpoint()[Geom::Y] + new_height/2;

Geom::Affine scaler = get_scale_transform_for_variable_stroke (*bbox_pref, *bbox_geom, transform_stroke, x0, y0, x1, y1);

sp_selection_apply_affine(selection, scaler);

}

}

DocumentUndo::done(sp_desktop_document(selection->desktop()), SP_VERB_DIALOG_TRANSFORM,

_("Scale"));

}

Transformation::applyPageRotate(Inkscape::Selection *selection)

{

double angle = _scalar_rotate.getValue("deg");

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

if (prefs->getBool("/dialogs/transformation/applyseparately")) {

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

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

sp_item_rotate_rel(item, Geom::Rotate (angle*M_PI/180.0));

}

} else {

boost::optional<Geom::Point> center = selection->center();

if (center) {

sp_selection_rotate_relative(selection, *center, angle);

}

}

DocumentUndo::done(sp_desktop_document(selection->desktop()), SP_VERB_DIALOG_TRANSFORM,

_("Rotate"));

}

Transformation::applyPageSkew(Inkscape::Selection *selection)

{

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

if (prefs->getBool("/dialogs/transformation/applyseparately")) {

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

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

if (!_units_skew.isAbsolute()) { // percentage

double skewX = _scalar_skew_horizontal.getValue("%");

double skewY = _scalar_skew_vertical.getValue("%");

sp_item_skew_rel (item, 0.01*skewX, 0.01*skewY);

} else if (_units_skew.isRadial()) { //deg or rad

double angleX = _scalar_skew_horizontal.getValue("rad");

double angleY = _scalar_skew_vertical.getValue("rad");

double skewX = tan(-angleX);

double skewY = tan(angleY);

sp_item_skew_rel (item, skewX, skewY);

} else { // absolute displacement

double skewX = _scalar_skew_horizontal.getValue("px");

double skewY = _scalar_skew_vertical.getValue("px");

Geom::OptRect bbox = item->desktopPreferredBounds();

if (bbox) {

double width = bbox->dimensions()[Geom::X];

double height = bbox->dimensions()[Geom::Y];

sp_item_skew_rel (item, skewX/height, skewY/width);

}

}

}

} else { // transform whole selection

Geom::OptRect bbox = selection->preferredBounds();

boost::optional<Geom::Point> center = selection->center();

if ( bbox && center ) {

double width = bbox->dimensions()[Geom::X];

double height = bbox->dimensions()[Geom::Y];

if (!_units_skew.isAbsolute()) { // percentage

double skewX = _scalar_skew_horizontal.getValue("%");

double skewY = _scalar_skew_vertical.getValue("%");

sp_selection_skew_relative(selection, *center, 0.01*skewX, 0.01*skewY);

} else if (_units_skew.isRadial()) { //deg or rad

double angleX = _scalar_skew_horizontal.getValue("rad");

double angleY = _scalar_skew_vertical.getValue("rad");

double skewX = tan(-angleX);

double skewY = tan(angleY);

sp_selection_skew_relative(selection, *center, skewX, skewY);

} else { // absolute displacement

double skewX = _scalar_skew_horizontal.getValue("px");

double skewY = _scalar_skew_vertical.getValue("px");

sp_selection_skew_relative(selection, *center, skewX/height, skewY/width);

}

}

}

DocumentUndo::done(sp_desktop_document(selection->desktop()), SP_VERB_DIALOG_TRANSFORM,

_("Skew"));

}

Transformation::applyPageTransform(Inkscape::Selection *selection)

{

double a = _scalar_transform_a.getValue();

double b = _scalar_transform_b.getValue();

double c = _scalar_transform_c.getValue();

double d = _scalar_transform_d.getValue();

double e = _scalar_transform_e.getValue();

double f = _scalar_transform_f.getValue();

Geom::Affine displayed(a, b, c, d, e, f);

if (_check_replace_matrix.get_active()) {

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

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

item->set_item_transform(displayed);

SP_OBJECT(item)->updateRepr();

}

} else {

sp_selection_apply_affine(selection, displayed); // post-multiply each object's transform

}

DocumentUndo::done(sp_desktop_document(selection->desktop()), SP_VERB_DIALOG_TRANSFORM,

_("Edit transformation matrix"));

}

Transformation::onMoveValueChanged()

{

setResponseSensitive(Gtk::RESPONSE_APPLY, true);

}

Transformation::onMoveRelativeToggled()

{

Inkscape::Selection *selection = _getSelection();

if (!selection || selection->isEmpty())

return;

double x = _scalar_move_horizontal.getValue("px");

double y = _scalar_move_vertical.getValue("px");

double conversion = _units_move.getConversion("px");

//g_message("onMoveRelativeToggled: %f, %f px\n", x, y);

Geom::OptRect bbox = selection->preferredBounds();

if (bbox) {

if (_check_move_relative.get_active()) {

// From absolute to relative

_scalar_move_horizontal.setValue((x - bbox->min()[Geom::X]) / conversion);

_scalar_move_vertical.setValue(( y - bbox->min()[Geom::Y]) / conversion);

} else {

// From relative to absolute

_scalar_move_horizontal.setValue((bbox->min()[Geom::X] + x) / conversion);

_scalar_move_vertical.setValue(( bbox->min()[Geom::Y] + y) / conversion);

}

}

setResponseSensitive(Gtk::RESPONSE_APPLY, true);

}

Transformation::onScaleXValueChanged()

{

if (_scalar_scale_horizontal.setProgrammatically) {

_scalar_scale_horizontal.setProgrammatically = false;

return;

}

setResponseSensitive(Gtk::RESPONSE_APPLY, true);

if (_check_scale_proportional.get_active()) {

if (!_units_scale.isAbsolute()) { // percentage, just copy over

_scalar_scale_vertical.setValue(_scalar_scale_horizontal.getValue("%"));

} else {

double scaleXPercentage = _scalar_scale_horizontal.getAsPercentage();

_scalar_scale_vertical.setFromPercentage (scaleXPercentage);

}

}

}

Transformation::onScaleYValueChanged()

{

if (_scalar_scale_vertical.setProgrammatically) {

_scalar_scale_vertical.setProgrammatically = false;

return;

}

setResponseSensitive(Gtk::RESPONSE_APPLY, true);

if (_check_scale_proportional.get_active()) {

if (!_units_scale.isAbsolute()) { // percentage, just copy over

_scalar_scale_horizontal.setValue(_scalar_scale_vertical.getValue("%"));

} else {

double scaleYPercentage = _scalar_scale_vertical.getAsPercentage();

_scalar_scale_horizontal.setFromPercentage (scaleYPercentage);

}

}

}

Transformation::onRotateValueChanged()

{

setResponseSensitive(Gtk::RESPONSE_APPLY, true);

}

Transformation::onSkewValueChanged()

{

setResponseSensitive(Gtk::RESPONSE_APPLY, true);

}

Transformation::onTransformValueChanged()

{

/*

setResponseSensitive(Gtk::RESPONSE_APPLY, true);

}

Transformation::onReplaceMatrixToggled()

{

Inkscape::Selection *selection = _getSelection();

if (!selection || selection->isEmpty())

return;

double a = _scalar_transform_a.getValue();

double b = _scalar_transform_b.getValue();

double c = _scalar_transform_c.getValue();

double d = _scalar_transform_d.getValue();

double e = _scalar_transform_e.getValue();

double f = _scalar_transform_f.getValue();

Geom::Affine displayed (a, b, c, d, e, f);

Geom::Affine current = SP_ITEM(selection->itemList()->data)->transform; // take from the first item in selection

Geom::Affine new_displayed;

if (_check_replace_matrix.get_active()) {

new_displayed = current;

} else {

new_displayed = current.inverse() * displayed;

}

_scalar_transform_a.setValue(new_displayed[0]);

_scalar_transform_b.setValue(new_displayed[1]);

_scalar_transform_c.setValue(new_displayed[2]);

_scalar_transform_d.setValue(new_displayed[3]);

_scalar_transform_e.setValue(new_displayed[4]);

_scalar_transform_f.setValue(new_displayed[5]);

}

Transformation::onScaleProportionalToggled()

{

onScaleXValueChanged();

}

Transformation::onClear()

{

int const page = _notebook.get_current_page();

switch (page) {

case PAGE_MOVE: {

Inkscape::Selection *selection = _getSelection();

if (!selection || selection->isEmpty() || _check_move_relative.get_active()) {

_scalar_move_horizontal.setValue(0);

_scalar_move_vertical.setValue(0);

} else {

Geom::OptRect bbox = selection->preferredBounds();

if (bbox) {

_scalar_move_horizontal.setValue(bbox->min()[Geom::X], "px");

_scalar_move_vertical.setValue(bbox->min()[Geom::Y], "px");

}

}

break;

}

case PAGE_ROTATE: {

_scalar_rotate.setValue(0);

break;

}

case PAGE_SCALE: {

_scalar_scale_horizontal.setValue(100, "%");

_scalar_scale_vertical.setValue(100, "%");

break;

}

case PAGE_SKEW: {

_scalar_skew_horizontal.setValue(0);

_scalar_skew_vertical.setValue(0);

break;

}

case PAGE_TRANSFORM: {

_scalar_transform_a.setValue(1);

_scalar_transform_b.setValue(0);

_scalar_transform_c.setValue(0);

_scalar_transform_d.setValue(1);

_scalar_transform_e.setValue(0);

_scalar_transform_f.setValue(0);

break;

}

}

}

Transformation::onApplySeparatelyToggled()

{

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

prefs->setBool("/dialogs/transformation/applyseparately", _check_apply_separately.get_active());

}

} // namespace Dialog

} // namespace UI

} // namespace Inkscape