src/ui/dialog/transformation.cpp

   1 /** @file
   2  * \brief Transform dialog - implementation
   3  */
   4 /* Authors:
   5  *   Bryce W. Harrington <bryce@bryceharrington.org>
   6  *   buliabyak@gmail.com
   7  *
   8  * Copyright (C) 2004, 2005 Authors
   9  * Released under GNU GPL.  Read the file 'COPYING' for more information.
  10  */
  11
  12 #ifdef HAVE_CONFIG_H
  13 # include <config.h>
  14 #endif
  15
  16 #include <gtkmm/stock.h>
  17 #include <gtkmm/dialog.h>
  18
  19 #include "document.h"
  20 #include "desktop-handles.h"
  21 #include "transformation.h"
  22 #include "align-and-distribute.h"
  23 #include "libnr/nr-matrix-ops.h"
  24 #include "inkscape.h"
  25 #include "selection.h"
  26 #include "selection-chemistry.h"
  27 #include "verbs.h"
  28 #include "preferences.h"
  29 #include "sp-item-transform.h"
  30 #include "macros.h"
  31 #include "sp-item.h"
  32 #include "util/glib-list-iterators.h"
  33
  34 namespace Inkscape {
  35 namespace UI {
  36 namespace Dialog {
  37
  38 void on_selection_changed(Inkscape::Application */*inkscape*/, Inkscape::Selection *selection, Transformation *daad)
  39 {
  40     int page = daad->getCurrentPage();
  41     daad->updateSelection((Inkscape::UI::Dialog::Transformation::PageType)page, selection);
  42 }
  43
  44 void on_selection_modified( Inkscape::Application */*inkscape*/,
  45                             Inkscape::Selection *selection,
  46                             guint /*flags*/,
  47                             Transformation *daad )
  48 {
  49     int page = daad->getCurrentPage();
  50     daad->updateSelection((Inkscape::UI::Dialog::Transformation::PageType)page, selection);
  51 }
  52
  53 /*########################################################################
  54 # C O N S T R U C T O R
  55 ########################################################################*/
  56
  57 /**
  58  * Constructor for Transformation.  This does the initialization
  59  * and layout of the dialog used for transforming SVG objects.  It
  60  * consists of 5 pages for the 5 operations it handles:
  61  * 'Move' allows x,y translation of SVG objects
  62  * 'Scale' allows linear resizing of SVG objects
  63  * 'Rotate' allows rotating SVG objects by a degree
  64  * 'Skew' allows skewing SVG objects
  65  * 'Matrix' allows applying a generic affine transform on SVG objects,
  66  *     with the user specifying the 6 degrees of freedom manually.
  67  *
  68  * The dialog is implemented as a Gtk::Notebook with five pages.
  69  * The pages are implemented using Inkscape's NotebookPage which
  70  * is used to help make sure all of Inkscape's notebooks follow
  71  * the same style.  We then populate the pages with our widgets,
  72  * we use the ScalarUnit class for this.
  73  *
  74  */
  75 Transformation::Transformation()
  76     : UI::Widget::Panel ("", "/dialogs/transformation", SP_VERB_DIALOG_TRANSFORM),
  77       _page_move              (4, 2),
  78       _page_scale             (4, 2),
  79       _page_rotate            (4, 2),
  80       _page_skew              (4, 2),
  81       _page_transform         (3, 3),
  82       _scalar_move_horizontal (_("_Horizontal"), _("Horizontal displacement (relative) or position (absolute)"), UNIT_TYPE_LINEAR,
  83                                "", "transform-move-horizontal", &_units_move),
  84       _scalar_move_vertical   (_("_Vertical"),  _("Vertical displacement (relative) or position (absolute)"), UNIT_TYPE_LINEAR,
  85                                "", "transform-move-vertical", &_units_move),
  86       _scalar_scale_horizontal(_("_Width"), _("Horizontal size (absolute or percentage of current)"), UNIT_TYPE_DIMENSIONLESS,
  87                                "", "transform-scale-horizontal", &_units_scale),
  88       _scalar_scale_vertical  (_("_Height"),  _("Vertical size (absolute or percentage of current)"), UNIT_TYPE_DIMENSIONLESS,
  89                                "", "transform-scale-vertical", &_units_scale),
  90       _scalar_rotate          (_("A_ngle"), _("Rotation angle (positive = counterclockwise)"), UNIT_TYPE_RADIAL,
  91                                "", "transform-rotate", &_units_rotate),
  92       _scalar_skew_horizontal (_("_Horizontal"), _("Horizontal skew angle (positive = counterclockwise), or absolute displacement, or percentage displacement"), UNIT_TYPE_LINEAR,
  93                                "", "transform-skew-horizontal", &_units_skew),
  94       _scalar_skew_vertical   (_("_Vertical"),  _("Vertical skew angle (positive = counterclockwise), or absolute displacement, or percentage displacement"),  UNIT_TYPE_LINEAR,
  95                                "", "transform-skew-vertical", &_units_skew),
  96
  97       _scalar_transform_a     ("_A", _("Transformation matrix element A")),
  98       _scalar_transform_b     ("_B", _("Transformation matrix element B")),
  99       _scalar_transform_c     ("_C", _("Transformation matrix element C")),
 100       _scalar_transform_d     ("_D", _("Transformation matrix element D")),
 101       _scalar_transform_e     ("_E", _("Transformation matrix element E")),
 102       _scalar_transform_f     ("_F", _("Transformation matrix element F")),
 103
 104       _check_move_relative    (_("Rela_tive move"), _("Add the specified relative displacement to the current position; otherwise, edit the current absolute position directly")),
 105       _check_scale_proportional (_("Scale proportionally"), _("Preserve the width/height ratio of the scaled objects")),
 106       _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")),
 107       _check_replace_matrix    (_("Edit c_urrent matrix"), _("Edit the current transform= matrix; otherwise, post-multiply transform= by this matrix"))
 108
 109 {
 110     Gtk::Box *contents = _getContents();
 111
 112     contents->set_spacing(0);
 113
 114     // Notebook for individual transformations
 115     contents->pack_start(_notebook, true, true);
 116
 117     _notebook.append_page(_page_move, _("_Move"), true);
 118     layoutPageMove();
 119
 120     _notebook.append_page(_page_scale, _("_Scale"), true);
 121     layoutPageScale();
 122
 123     _notebook.append_page(_page_rotate, _("_Rotate"), true);
 124     layoutPageRotate();
 125
 126     _notebook.append_page(_page_skew, _("Ske_w"), true);
 127     layoutPageSkew();
 128
 129     _notebook.append_page(_page_transform, _("Matri_x"), true);
 130     layoutPageTransform();
 131
 132     _notebook.signal_switch_page().connect(sigc::mem_fun(*this, &Transformation::onSwitchPage));
 133
 134     // Apply separately
 135     contents->pack_start(_check_apply_separately, true, true);
 136     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 137     _check_apply_separately.set_active(prefs->getBool("/dialogs/transformation/applyseparately"));
 138     _check_apply_separately.signal_toggled().connect(sigc::mem_fun(*this, &Transformation::onApplySeparatelyToggled));
 139
 140     // make sure all spinbuttons activate Apply on pressing Enter
 141       ((Gtk::Entry *) (_scalar_move_horizontal.getWidget()))->set_activates_default(true);
 142       ((Gtk::Entry *) (_scalar_move_vertical.getWidget()))->set_activates_default(true);
 143       ((Gtk::Entry *) (_scalar_scale_horizontal.getWidget()))->set_activates_default(true);
 144       ((Gtk::Entry *) (_scalar_scale_vertical.getWidget()))->set_activates_default(true);
 145       ((Gtk::Entry *) (_scalar_rotate.getWidget()))->set_activates_default(true);
 146       ((Gtk::Entry *) (_scalar_skew_horizontal.getWidget()))->set_activates_default(true);
 147       ((Gtk::Entry *) (_scalar_skew_vertical.getWidget()))->set_activates_default(true);
 148
 149     updateSelection(PAGE_MOVE, _getSelection());
 150
 151     resetButton = addResponseButton(Gtk::Stock::CLEAR, 0);
 152     if (resetButton) {
 153         _tooltips.set_tip((*resetButton), _("Reset the values on the current tab to defaults"));
 154         resetButton->set_sensitive(true);
 155         resetButton->signal_clicked().connect(sigc::mem_fun(*this, &Transformation::onClear));
 156     }
 157
 158     applyButton = addResponseButton(Gtk::Stock::APPLY, Gtk::RESPONSE_APPLY);
 159     if (applyButton) {
 160         _tooltips.set_tip((*applyButton), _("Apply transformation to selection"));
 161         applyButton->set_sensitive(false);
 162     }
 163
 164     // Connect to the global selection changed & modified signals
 165     g_signal_connect (G_OBJECT (INKSCAPE), "change_selection", G_CALLBACK (on_selection_changed), this);
 166     g_signal_connect (G_OBJECT (INKSCAPE), "modify_selection", G_CALLBACK (on_selection_modified), this);
 167
 168     show_all_children();
 169 }
 170
 171 Transformation::~Transformation()
 172 {
 173     sp_signal_disconnect_by_data (G_OBJECT (INKSCAPE), this);
 174 }
 175
 176
 177 /*########################################################################
 178 # U T I L I T Y
 179 ########################################################################*/
 180
 181 void
 182 Transformation::presentPage(Transformation::PageType page)
 183 {
 184     _notebook.set_current_page(page);
 185     show();
 186     present();
 187 }
 188
 189
 190
 191
 192 /*########################################################################
 193 # S E T U P   L A Y O U T
 194 ########################################################################*/
 195
 196
 197 void
 198 Transformation::layoutPageMove()
 199 {
 200     _units_move.setUnitType(UNIT_TYPE_LINEAR);
 201     _scalar_move_horizontal.initScalar(-1e6, 1e6);
 202     _scalar_move_horizontal.setDigits(3);
 203     _scalar_move_horizontal.setIncrements(0.1, 1.0);
 204
 205     _scalar_move_vertical.initScalar(-1e6, 1e6);
 206     _scalar_move_vertical.setDigits(3);
 207     _scalar_move_vertical.setIncrements(0.1, 1.0);
 208
 209     //_scalar_move_vertical.set_label_image( INKSCAPE_STOCK_ARROWS_HOR );
 210     _page_move.table()
 211         .attach(_scalar_move_horizontal, 0, 2, 0, 1, Gtk::FILL, Gtk::SHRINK);
 212
 213     _page_move.table()
 214         .attach(_units_move, 2, 3, 0, 1, Gtk::SHRINK, Gtk::SHRINK);
 215
 216     _scalar_move_horizontal.signal_value_changed()
 217         .connect(sigc::mem_fun(*this, &Transformation::onMoveValueChanged));
 218
 219     //_scalar_move_vertical.set_label_image( INKSCAPE_STOCK_ARROWS_VER );
 220     _page_move.table()
 221         .attach(_scalar_move_vertical, 0, 2, 1, 2, Gtk::FILL, Gtk::SHRINK);
 222
 223     _scalar_move_vertical.signal_value_changed()
 224         .connect(sigc::mem_fun(*this, &Transformation::onMoveValueChanged));
 225
 226     // Relative moves
 227     _page_move.table()
 228         .attach(_check_move_relative, 0, 2, 2, 3, Gtk::FILL, Gtk::SHRINK);
 229     _check_move_relative.set_active(true);
 230     _check_move_relative.signal_toggled()
 231         .connect(sigc::mem_fun(*this, &Transformation::onMoveRelativeToggled));
 232 }
 233
 234 void
 235 Transformation::layoutPageScale()
 236 {
 237     _units_scale.setUnitType(UNIT_TYPE_DIMENSIONLESS);
 238     _units_scale.setUnitType(UNIT_TYPE_LINEAR);
 239
 240     _scalar_scale_horizontal.initScalar(-1e6, 1e6);
 241     _scalar_scale_horizontal.setValue(100.0, "%");
 242     _scalar_scale_horizontal.setDigits(3);
 243     _scalar_scale_horizontal.setIncrements(0.1, 1.0);
 244     _scalar_scale_horizontal.setAbsoluteIsIncrement(true);
 245     _scalar_scale_horizontal.setPercentageIsIncrement(true);
 246
 247     _scalar_scale_vertical.initScalar(-1e6, 1e6);
 248     _scalar_scale_vertical.setValue(100.0, "%");
 249     _scalar_scale_vertical.setDigits(3);
 250     _scalar_scale_vertical.setIncrements(0.1, 1.0);
 251     _scalar_scale_vertical.setAbsoluteIsIncrement(true);
 252     _scalar_scale_vertical.setPercentageIsIncrement(true);
 253
 254     _page_scale.table()
 255         .attach(_scalar_scale_horizontal, 0, 2, 0, 1, Gtk::FILL, Gtk::SHRINK);
 256     _scalar_scale_horizontal.signal_value_changed()
 257         .connect(sigc::mem_fun(*this, &Transformation::onScaleXValueChanged));
 258
 259     _page_scale.table()
 260         .attach(_units_scale, 2, 3, 0, 1, Gtk::SHRINK, Gtk::SHRINK);
 261
 262     _page_scale.table()
 263         .attach(_scalar_scale_vertical, 0, 2, 1, 2, Gtk::FILL, Gtk::SHRINK);
 264     _scalar_scale_vertical.signal_value_changed()
 265         .connect(sigc::mem_fun(*this, &Transformation::onScaleYValueChanged));
 266
 267     _page_scale.table()
 268         .attach(_check_scale_proportional, 0, 2, 2, 3, Gtk::FILL, Gtk::SHRINK);
 269     _check_scale_proportional.set_active(false);
 270     _check_scale_proportional.signal_toggled()
 271         .connect(sigc::mem_fun(*this, &Transformation::onScaleProportionalToggled));
 272
 273     //TODO: add a widget for selecting the fixed point in scaling, or honour rotation center?
 274 }
 275
 276 void
 277 Transformation::layoutPageRotate()
 278 {
 279     _units_rotate.setUnitType(UNIT_TYPE_RADIAL);
 280
 281     _scalar_rotate.initScalar(-360.0, 360.0);
 282     _scalar_rotate.setDigits(3);
 283     _scalar_rotate.setIncrements(0.1, 1.0);
 284
 285     _page_rotate.table()
 286         .attach(_scalar_rotate, 0, 2, 0, 1, Gtk::FILL, Gtk::SHRINK);
 287
 288     _page_rotate.table()
 289         .attach(_units_rotate, 2, 3, 0, 1, Gtk::SHRINK, Gtk::SHRINK);
 290
 291     _scalar_rotate.signal_value_changed()
 292         .connect(sigc::mem_fun(*this, &Transformation::onRotateValueChanged));
 293
 294     //TODO: honour rotation center?
 295 }
 296
 297 void
 298 Transformation::layoutPageSkew()
 299 {
 300     _units_skew.setUnitType(UNIT_TYPE_LINEAR);
 301     _units_skew.setUnitType(UNIT_TYPE_DIMENSIONLESS);
 302     _units_skew.setUnitType(UNIT_TYPE_RADIAL);
 303
 304     _scalar_skew_horizontal.initScalar(-1e6, 1e6);
 305     _scalar_skew_horizontal.setDigits(3);
 306     _scalar_skew_horizontal.setIncrements(0.1, 1.0);
 307
 308     _scalar_skew_vertical.initScalar(-1e6, 1e6);
 309     _scalar_skew_vertical.setDigits(3);
 310     _scalar_skew_vertical.setIncrements(0.1, 1.0);
 311
 312     _page_skew.table()
 313         .attach(_scalar_skew_horizontal, 0, 2, 0, 1, Gtk::FILL, Gtk::SHRINK);
 314     _scalar_skew_horizontal.signal_value_changed()
 315         .connect(sigc::mem_fun(*this, &Transformation::onSkewValueChanged));
 316
 317     _page_skew.table()
 318         .attach(_units_skew, 2, 3, 0, 1, Gtk::SHRINK, Gtk::SHRINK);
 319
 320     _page_skew.table()
 321         .attach(_scalar_skew_vertical, 0, 2, 1, 2, Gtk::FILL, Gtk::SHRINK);
 322     _scalar_skew_vertical.signal_value_changed()
 323         .connect(sigc::mem_fun(*this, &Transformation::onSkewValueChanged));
 324
 325     //TODO: honour rotation center?
 326 }
 327
 328
 329
 330 void
 331 Transformation::layoutPageTransform()
 332 {
 333     _scalar_transform_a.setWidgetSizeRequest(65, -1);
 334     _scalar_transform_a.setRange(-1e10, 1e10);
 335     _scalar_transform_a.setDigits(3);
 336     _scalar_transform_a.setIncrements(0.1, 1.0);
 337     _scalar_transform_a.setValue(1.0);
 338     _page_transform.table()
 339         .attach(_scalar_transform_a, 0, 1, 0, 1, Gtk::SHRINK, Gtk::SHRINK);
 340     _scalar_transform_a.signal_value_changed()
 341         .connect(sigc::mem_fun(*this, &Transformation::onTransformValueChanged));
 342
 343
 344     _scalar_transform_b.setWidgetSizeRequest(65, -1);
 345     _scalar_transform_b.setRange(-1e10, 1e10);
 346     _scalar_transform_b.setDigits(3);
 347     _scalar_transform_b.setIncrements(0.1, 1.0);
 348     _scalar_transform_b.setValue(0.0);
 349     _page_transform.table()
 350         .attach(_scalar_transform_b, 0, 1, 1, 2, Gtk::SHRINK, Gtk::SHRINK);
 351     _scalar_transform_b.signal_value_changed()
 352         .connect(sigc::mem_fun(*this, &Transformation::onTransformValueChanged));
 353
 354
 355     _scalar_transform_c.setWidgetSizeRequest(65, -1);
 356     _scalar_transform_c.setRange(-1e10, 1e10);
 357     _scalar_transform_c.setDigits(3);
 358     _scalar_transform_c.setIncrements(0.1, 1.0);
 359     _scalar_transform_c.setValue(0.0);
 360     _page_transform.table()
 361         .attach(_scalar_transform_c, 1, 2, 0, 1, Gtk::SHRINK, Gtk::SHRINK);
 362     _scalar_transform_c.signal_value_changed()
 363         .connect(sigc::mem_fun(*this, &Transformation::onTransformValueChanged));
 364
 365
 366     _scalar_transform_d.setWidgetSizeRequest(65, -1);
 367     _scalar_transform_d.setRange(-1e10, 1e10);
 368     _scalar_transform_d.setDigits(3);
 369     _scalar_transform_d.setIncrements(0.1, 1.0);
 370     _scalar_transform_d.setValue(1.0);
 371     _page_transform.table()
 372         .attach(_scalar_transform_d, 1, 2, 1, 2, Gtk::SHRINK, Gtk::SHRINK);
 373     _scalar_transform_d.signal_value_changed()
 374         .connect(sigc::mem_fun(*this, &Transformation::onTransformValueChanged));
 375
 376
 377     _scalar_transform_e.setWidgetSizeRequest(65, -1);
 378     _scalar_transform_e.setRange(-1e10, 1e10);
 379     _scalar_transform_e.setDigits(3);
 380     _scalar_transform_e.setIncrements(0.1, 1.0);
 381     _scalar_transform_e.setValue(0.0);
 382     _page_transform.table()
 383         .attach(_scalar_transform_e, 2, 3, 0, 1, Gtk::SHRINK, Gtk::SHRINK);
 384     _scalar_transform_e.signal_value_changed()
 385         .connect(sigc::mem_fun(*this, &Transformation::onTransformValueChanged));
 386
 387
 388     _scalar_transform_f.setWidgetSizeRequest(65, -1);
 389     _scalar_transform_f.setRange(-1e10, 1e10);
 390     _scalar_transform_f.setDigits(3);
 391     _scalar_transform_f.setIncrements(0.1, 1.0);
 392     _scalar_transform_f.setValue(0.0);
 393     _page_transform.table()
 394         .attach(_scalar_transform_f, 2, 3, 1, 2, Gtk::SHRINK, Gtk::SHRINK);
 395     _scalar_transform_f.signal_value_changed()
 396         .connect(sigc::mem_fun(*this, &Transformation::onTransformValueChanged));
 397
 398     // Edit existing matrix
 399     _page_transform.table()
 400         .attach(_check_replace_matrix, 0, 2, 2, 3, Gtk::FILL, Gtk::SHRINK);
 401     _check_replace_matrix.set_active(false);
 402     _check_replace_matrix.signal_toggled()
 403         .connect(sigc::mem_fun(*this, &Transformation::onReplaceMatrixToggled));
 404 }
 405
 406
 407 /*########################################################################
 408 # U P D A T E
 409 ########################################################################*/
 410
 411 void
 412 Transformation::updateSelection(PageType page, Inkscape::Selection *selection)
 413 {
 414     if (!selection || selection->isEmpty())
 415         return;
 416
 417     switch (page) {
 418         case PAGE_MOVE: {
 419             updatePageMove(selection);
 420             break;
 421         }
 422         case PAGE_SCALE: {
 423             updatePageScale(selection);
 424             break;
 425         }
 426         case PAGE_ROTATE: {
 427             updatePageRotate(selection);
 428             break;
 429         }
 430         case PAGE_SKEW: {
 431             updatePageSkew(selection);
 432             break;
 433         }
 434         case PAGE_TRANSFORM: {
 435             updatePageTransform(selection);
 436             break;
 437         }
 438         case PAGE_QTY: {
 439             break;
 440         }
 441     }
 442
 443     setResponseSensitive(Gtk::RESPONSE_APPLY,
 444                          selection && !selection->isEmpty());
 445 }
 446
 447 void
 448 Transformation::onSwitchPage(GtkNotebookPage */*page*/,
 449                                    guint pagenum)
 450 {
 451     updateSelection((PageType)pagenum, sp_desktop_selection(getDesktop()));
 452 }
 453
 454
 455 void
 456 Transformation::updatePageMove(Inkscape::Selection *selection)
 457 {
 458     if (selection && !selection->isEmpty()) {
 459         if (!_check_move_relative.get_active()) {
 460             Geom::OptRect bbox = selection->bounds();
 461             if (bbox) {
 462                 double x = bbox->min()[Geom::X];
 463                 double y = bbox->min()[Geom::Y];
 464
 465                 _scalar_move_horizontal.setValue(x, "px");
 466                 _scalar_move_vertical.setValue(y, "px");
 467             }
 468         } else {
 469             // do nothing, so you can apply the same relative move to many objects in turn
 470         }
 471         _page_move.set_sensitive(true);
 472     } else {
 473         _page_move.set_sensitive(false);
 474     }
 475 }
 476
 477 void
 478 Transformation::updatePageScale(Inkscape::Selection *selection)
 479 {
 480     if (selection && !selection->isEmpty()) {
 481         Geom::OptRect bbox = selection->bounds();
 482         if (bbox) {
 483             double w = bbox->dimensions()[Geom::X];
 484             double h = bbox->dimensions()[Geom::Y];
 485             _scalar_scale_horizontal.setHundredPercent(w);
 486             _scalar_scale_vertical.setHundredPercent(h);
 487             onScaleXValueChanged(); // to update x/y proportionality if switch is on
 488             _page_scale.set_sensitive(true);
 489         } else {
 490             _page_scale.set_sensitive(false);
 491         }
 492     } else {
 493         _page_scale.set_sensitive(false);
 494     }
 495 }
 496
 497 void
 498 Transformation::updatePageRotate(Inkscape::Selection *selection)
 499 {
 500     if (selection && !selection->isEmpty()) {
 501         _page_rotate.set_sensitive(true);
 502     } else {
 503         _page_rotate.set_sensitive(false);
 504     }
 505 }
 506
 507 void
 508 Transformation::updatePageSkew(Inkscape::Selection *selection)
 509 {
 510     if (selection && !selection->isEmpty()) {
 511         Geom::OptRect bbox = selection->bounds();
 512         if (bbox) {
 513             double w = bbox->dimensions()[Geom::X];
 514             double h = bbox->dimensions()[Geom::Y];
 515             _scalar_skew_vertical.setHundredPercent(w);
 516             _scalar_skew_horizontal.setHundredPercent(h);
 517             _page_skew.set_sensitive(true);
 518         } else {
 519             _page_skew.set_sensitive(false);
 520         }
 521     } else {
 522         _page_skew.set_sensitive(false);
 523     }
 524 }
 525
 526 void
 527 Transformation::updatePageTransform(Inkscape::Selection *selection)
 528 {
 529     if (selection && !selection->isEmpty()) {
 530         if (_check_replace_matrix.get_active()) {
 531             Geom::Matrix current (SP_ITEM(selection->itemList()->data)->transform); // take from the first item in selection
 532
 533             Geom::Matrix new_displayed = current;
 534
 535             _scalar_transform_a.setValue(new_displayed[0]);
 536             _scalar_transform_b.setValue(new_displayed[1]);
 537             _scalar_transform_c.setValue(new_displayed[2]);
 538             _scalar_transform_d.setValue(new_displayed[3]);
 539             _scalar_transform_e.setValue(new_displayed[4]);
 540             _scalar_transform_f.setValue(new_displayed[5]);
 541         } else {
 542             // do nothing, so you can apply the same matrix to many objects in turn
 543         }
 544         _page_transform.set_sensitive(true);
 545     } else {
 546         _page_transform.set_sensitive(false);
 547     }
 548 }
 549
 550
 551
 552
 553
 554 /*########################################################################
 555 # A P P L Y
 556 ########################################################################*/
 557
 558
 559
 560 void
 561 Transformation::_apply()
 562 {
 563     Inkscape::Selection * const selection = _getSelection();
 564     if (!selection || selection->isEmpty())
 565         return;
 566
 567     int const page = _notebook.get_current_page();
 568
 569     switch (page) {
 570         case PAGE_MOVE: {
 571             applyPageMove(selection);
 572             break;
 573         }
 574         case PAGE_ROTATE: {
 575             applyPageRotate(selection);
 576             break;
 577         }
 578         case PAGE_SCALE: {
 579             applyPageScale(selection);
 580             break;
 581         }
 582         case PAGE_SKEW: {
 583             applyPageSkew(selection);
 584             break;
 585         }
 586         case PAGE_TRANSFORM: {
 587             applyPageTransform(selection);
 588             break;
 589         }
 590     }
 591
 592     //Let's play with never turning this off
 593     //setResponseSensitive(Gtk::RESPONSE_APPLY, false);
 594 }
 595
 596 void
 597 Transformation::applyPageMove(Inkscape::Selection *selection)
 598 {
 599     double x = _scalar_move_horizontal.getValue("px");
 600     double y = _scalar_move_vertical.getValue("px");
 601
 602     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 603     if (!prefs->getBool("/dialogs/transformation/applyseparately")) {
 604         // move selection as a whole
 605         if (_check_move_relative.get_active()) {
 606             sp_selection_move_relative(selection, x, y);
 607         } else {
 608             Geom::OptRect bbox = selection->bounds();
 609             if (bbox) {
 610                 sp_selection_move_relative(selection,
 611                                            x - bbox->min()[Geom::X], y - bbox->min()[Geom::Y]);
 612             }
 613         }
 614     } else {
 615
 616         if (_check_move_relative.get_active()) {
 617             // shift each object relatively to the previous one
 618             using Inkscape::Util::GSListConstIterator;
 619             std::list<SPItem *> selected;
 620             selected.insert<GSListConstIterator<SPItem *> >(selected.end(), selection->itemList(), NULL);
 621             if (selected.empty()) return;
 622
 623             if (fabs(x) > 1e-6) {
 624                 std::vector< BBoxSort  > sorted;
 625                 for (std::list<SPItem *>::iterator it(selected.begin());
 626                      it != selected.end();
 627                      ++it)
 628                 {
 629                     Geom::OptRect bbox = sp_item_bbox_desktop(*it);
 630                     if (bbox) {
 631                         sorted.push_back(BBoxSort(*it, *bbox, Geom::X, x > 0? 1. : 0., x > 0? 0. : 1.));
 632                     }
 633                 }
 634                 //sort bbox by anchors
 635                 std::sort(sorted.begin(), sorted.end());
 636
 637                 double move = x;
 638                 for ( std::vector<BBoxSort> ::iterator it (sorted.begin());
 639                       it < sorted.end();
 640                       it ++ )
 641                 {
 642                     sp_item_move_rel(it->item, Geom::Translate(move, 0));
 643                     // move each next object by x relative to previous
 644                     move += x;
 645                 }
 646             }
 647             if (fabs(y) > 1e-6) {
 648                 std::vector< BBoxSort  > sorted;
 649                 for (std::list<SPItem *>::iterator it(selected.begin());
 650                      it != selected.end();
 651                      ++it)
 652                 {
 653                     Geom::OptRect bbox = sp_item_bbox_desktop(*it);
 654                     if (bbox) {
 655                         sorted.push_back(BBoxSort(*it, *bbox, Geom::Y, y > 0? 1. : 0., y > 0? 0. : 1.));
 656                     }
 657                 }
 658                 //sort bbox by anchors
 659                 std::sort(sorted.begin(), sorted.end());
 660
 661                 double move = y;
 662                 for ( std::vector<BBoxSort> ::iterator it (sorted.begin());
 663                       it < sorted.end();
 664                       it ++ )
 665                 {
 666                     sp_item_move_rel(it->item, Geom::Translate(0, move));
 667                     // move each next object by x relative to previous
 668                     move += y;
 669                 }
 670             }
 671         } else {
 672             Geom::OptRect bbox = selection->bounds();
 673             if (bbox) {
 674                 sp_selection_move_relative(selection,
 675                                            x - bbox->min()[Geom::X], y - bbox->min()[Geom::Y]);
 676             }
 677         }
 678     }
 679
 680     sp_document_done ( sp_desktop_document (selection->desktop()) , SP_VERB_DIALOG_TRANSFORM,
 681                        _("Move"));
 682 }
 683
 684 void
 685 Transformation::applyPageScale(Inkscape::Selection *selection)
 686 {
 687     double scaleX = _scalar_scale_horizontal.getValue("px");
 688     double scaleY = _scalar_scale_vertical.getValue("px");
 689
 690     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 691     if (prefs->getBool("/dialogs/transformation/applyseparately")) {
 692         for (GSList const *l = selection->itemList(); l != NULL; l = l->next) {
 693             SPItem *item = SP_ITEM(l->data);
 694             Geom::Scale scale (0,0);
 695             // the values are increments!
 696             if (_units_scale.isAbsolute()) {
 697                 Geom::OptRect bbox(sp_item_bbox_desktop(item));
 698                 if (bbox) {
 699                     double new_width = scaleX;
 700                     if (fabs(new_width) < 1e-6) new_width = 1e-6; // not 0, as this would result in a nasty no-bbox object
 701                     double new_height = scaleY;
 702                     if (fabs(new_height) < 1e-6) new_height = 1e-6;
 703                     scale = Geom::Scale(new_width / bbox->dimensions()[Geom::X], new_height / bbox->dimensions()[Geom::Y]);
 704                 }
 705             } else {
 706                 double new_width = scaleX;
 707                 if (fabs(new_width) < 1e-6) new_width = 1e-6;
 708                 double new_height = scaleY;
 709                 if (fabs(new_height) < 1e-6) new_height = 1e-6;
 710                 scale = Geom::Scale(new_width / 100.0, new_height / 100.0);
 711             }
 712             sp_item_scale_rel (item, scale);
 713         }
 714     } else {
 715         Geom::OptRect bbox(selection->bounds());
 716         if (bbox) {
 717             Geom::Point center(bbox->midpoint()); // use rotation center?
 718             Geom::Scale scale (0,0);
 719             // the values are increments!
 720             if (_units_scale.isAbsolute()) {
 721                 double new_width = scaleX;
 722                 if (fabs(new_width) < 1e-6) new_width = 1e-6;
 723                 double new_height = scaleY;
 724                 if (fabs(new_height) < 1e-6) new_height = 1e-6;
 725                 scale = Geom::Scale(new_width / bbox->dimensions()[Geom::X], new_height / bbox->dimensions()[Geom::Y]);
 726             } else {
 727                 double new_width = scaleX;
 728                 if (fabs(new_width) < 1e-6) new_width = 1e-6;
 729                 double new_height = scaleY;
 730                 if (fabs(new_height) < 1e-6) new_height = 1e-6;
 731                 scale = Geom::Scale(new_width / 100.0, new_height / 100.0);
 732             }
 733             sp_selection_scale_relative(selection, center, scale);
 734         }
 735     }
 736
 737     sp_document_done(sp_desktop_document(selection->desktop()), SP_VERB_DIALOG_TRANSFORM,
 738                      _("Scale"));
 739 }
 740
 741 void
 742 Transformation::applyPageRotate(Inkscape::Selection *selection)
 743 {
 744     double angle = _scalar_rotate.getValue("deg");
 745
 746     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 747     if (prefs->getBool("/dialogs/transformation/applyseparately")) {
 748         for (GSList const *l = selection->itemList(); l != NULL; l = l->next) {
 749             SPItem *item = SP_ITEM(l->data);
 750             sp_item_rotate_rel(item, Geom::Rotate (angle*M_PI/180.0));
 751         }
 752     } else {
 753         boost::optional<Geom::Point> center = selection->center();
 754         if (center) {
 755             sp_selection_rotate_relative(selection, *center, angle);
 756         }
 757     }
 758
 759     sp_document_done(sp_desktop_document(selection->desktop()), SP_VERB_DIALOG_TRANSFORM,
 760                      _("Rotate"));
 761 }
 762
 763 void
 764 Transformation::applyPageSkew(Inkscape::Selection *selection)
 765 {
 766     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 767     if (prefs->getBool("/dialogs/transformation/applyseparately")) {
 768         for (GSList const *l = selection->itemList(); l != NULL; l = l->next) {
 769             SPItem *item = SP_ITEM(l->data);
 770
 771             if (!_units_skew.isAbsolute()) { // percentage
 772                 double skewX = _scalar_skew_horizontal.getValue("%");
 773                 double skewY = _scalar_skew_vertical.getValue("%");
 774                 sp_item_skew_rel (item, 0.01*skewX, 0.01*skewY);
 775             } else if (_units_skew.isRadial()) { //deg or rad
 776                 double angleX = _scalar_skew_horizontal.getValue("rad");
 777                 double angleY = _scalar_skew_vertical.getValue("rad");
 778                 double skewX = tan(-angleX);
 779                 double skewY = tan(angleY);
 780                 sp_item_skew_rel (item, skewX, skewY);
 781             } else { // absolute displacement
 782                 double skewX = _scalar_skew_horizontal.getValue("px");
 783                 double skewY = _scalar_skew_vertical.getValue("px");
 784                 Geom::OptRect bbox(sp_item_bbox_desktop(item));
 785                 if (bbox) {
 786                     double width = bbox->dimensions()[Geom::X];
 787                     double height = bbox->dimensions()[Geom::Y];
 788                     sp_item_skew_rel (item, skewX/height, skewY/width);
 789                 }
 790             }
 791         }
 792     } else { // transform whole selection
 793         Geom::OptRect bbox = selection->bounds();
 794         boost::optional<Geom::Point> center = selection->center();
 795
 796         if ( bbox && center ) {
 797             double width  = bbox->dimensions()[Geom::X];
 798             double height = bbox->dimensions()[Geom::Y];
 799
 800             if (!_units_skew.isAbsolute()) { // percentage
 801                 double skewX = _scalar_skew_horizontal.getValue("%");
 802                 double skewY = _scalar_skew_vertical.getValue("%");
 803                 sp_selection_skew_relative(selection, *center, 0.01*skewX, 0.01*skewY);
 804             } else if (_units_skew.isRadial()) { //deg or rad
 805                 double angleX = _scalar_skew_horizontal.getValue("rad");
 806                 double angleY = _scalar_skew_vertical.getValue("rad");
 807                 double skewX = tan(-angleX);
 808                 double skewY = tan(angleY);
 809                 sp_selection_skew_relative(selection, *center, skewX, skewY);
 810             } else { // absolute displacement
 811                 double skewX = _scalar_skew_horizontal.getValue("px");
 812                 double skewY = _scalar_skew_vertical.getValue("px");
 813                 sp_selection_skew_relative(selection, *center, skewX/height, skewY/width);
 814             }
 815         }
 816     }
 817
 818     sp_document_done(sp_desktop_document(selection->desktop()), SP_VERB_DIALOG_TRANSFORM,
 819                      _("Skew"));
 820 }
 821
 822
 823 void
 824 Transformation::applyPageTransform(Inkscape::Selection *selection)
 825 {
 826     double a = _scalar_transform_a.getValue();
 827     double b = _scalar_transform_b.getValue();
 828     double c = _scalar_transform_c.getValue();
 829     double d = _scalar_transform_d.getValue();
 830     double e = _scalar_transform_e.getValue();
 831     double f = _scalar_transform_f.getValue();
 832
 833     Geom::Matrix displayed(a, b, c, d, e, f);
 834
 835     if (_check_replace_matrix.get_active()) {
 836         for (GSList const *l = selection->itemList(); l != NULL; l = l->next) {
 837             SPItem *item = SP_ITEM(l->data);
 838             sp_item_set_item_transform(item, displayed);
 839             SP_OBJECT(item)->updateRepr();
 840         }
 841     } else {
 842         sp_selection_apply_affine(selection, displayed); // post-multiply each object's transform
 843     }
 844
 845     sp_document_done(sp_desktop_document(selection->desktop()), SP_VERB_DIALOG_TRANSFORM,
 846                      _("Edit transformation matrix"));
 847 }
 848
 849
 850
 851
 852
 853 /*########################################################################
 854 # V A L U E - C H A N G E D    C A L L B A C K S
 855 ########################################################################*/
 856
 857 void
 858 Transformation::onMoveValueChanged()
 859 {
 860     setResponseSensitive(Gtk::RESPONSE_APPLY, true);
 861 }
 862
 863 void
 864 Transformation::onMoveRelativeToggled()
 865 {
 866     Inkscape::Selection *selection = _getSelection();
 867
 868     if (!selection || selection->isEmpty())
 869         return;
 870
 871     double x = _scalar_move_horizontal.getValue("px");
 872     double y = _scalar_move_vertical.getValue("px");
 873
 874     //g_message("onMoveRelativeToggled: %f, %f px\n", x, y);
 875
 876     Geom::OptRect bbox = selection->bounds();
 877
 878     if (bbox) {
 879         if (_check_move_relative.get_active()) {
 880             // From absolute to relative
 881             _scalar_move_horizontal.setValue(x - bbox->min()[Geom::X], "px");
 882             _scalar_move_vertical.setValue(  y - bbox->min()[Geom::Y], "px");
 883         } else {
 884             // From relative to absolute
 885             _scalar_move_horizontal.setValue(bbox->min()[Geom::X] + x, "px");
 886             _scalar_move_vertical.setValue(  bbox->min()[Geom::Y] + y, "px");
 887         }
 888     }
 889
 890     setResponseSensitive(Gtk::RESPONSE_APPLY, true);
 891 }
 892
 893 void
 894 Transformation::onScaleXValueChanged()
 895 {
 896     if (_scalar_scale_horizontal.setProgrammatically) {
 897         _scalar_scale_horizontal.setProgrammatically = false;
 898         return;
 899     }
 900
 901     setResponseSensitive(Gtk::RESPONSE_APPLY, true);
 902
 903     if (_check_scale_proportional.get_active()) {
 904         if (!_units_scale.isAbsolute()) { // percentage, just copy over
 905             _scalar_scale_vertical.setValue(_scalar_scale_horizontal.getValue("%"));
 906         } else {
 907             double scaleXPercentage = _scalar_scale_horizontal.getAsPercentage();
 908             _scalar_scale_vertical.setFromPercentage (scaleXPercentage);
 909         }
 910     }
 911 }
 912
 913 void
 914 Transformation::onScaleYValueChanged()
 915 {
 916     if (_scalar_scale_vertical.setProgrammatically) {
 917         _scalar_scale_vertical.setProgrammatically = false;
 918         return;
 919     }
 920
 921     setResponseSensitive(Gtk::RESPONSE_APPLY, true);
 922
 923     if (_check_scale_proportional.get_active()) {
 924         if (!_units_scale.isAbsolute()) { // percentage, just copy over
 925             _scalar_scale_horizontal.setValue(_scalar_scale_vertical.getValue("%"));
 926         } else {
 927             double scaleYPercentage = _scalar_scale_vertical.getAsPercentage();
 928             _scalar_scale_horizontal.setFromPercentage (scaleYPercentage);
 929         }
 930     }
 931 }
 932
 933 void
 934 Transformation::onRotateValueChanged()
 935 {
 936     setResponseSensitive(Gtk::RESPONSE_APPLY, true);
 937 }
 938
 939 void
 940 Transformation::onSkewValueChanged()
 941 {
 942     setResponseSensitive(Gtk::RESPONSE_APPLY, true);
 943 }
 944
 945 void
 946 Transformation::onTransformValueChanged()
 947 {
 948
 949     /*
 950     double a = _scalar_transform_a.getValue();
 951     double b = _scalar_transform_b.getValue();
 952     double c = _scalar_transform_c.getValue();
 953     double d = _scalar_transform_d.getValue();
 954     double e = _scalar_transform_e.getValue();
 955     double f = _scalar_transform_f.getValue();
 956
 957     //g_message("onTransformValueChanged: (%f, %f, %f, %f, %f, %f)\n",
 958     //          a, b, c, d, e ,f);
 959     */
 960
 961     setResponseSensitive(Gtk::RESPONSE_APPLY, true);
 962 }
 963
 964 void
 965 Transformation::onReplaceMatrixToggled()
 966 {
 967     Inkscape::Selection *selection = _getSelection();
 968
 969     if (!selection || selection->isEmpty())
 970         return;
 971
 972     double a = _scalar_transform_a.getValue();
 973     double b = _scalar_transform_b.getValue();
 974     double c = _scalar_transform_c.getValue();
 975     double d = _scalar_transform_d.getValue();
 976     double e = _scalar_transform_e.getValue();
 977     double f = _scalar_transform_f.getValue();
 978
 979     Geom::Matrix displayed (a, b, c, d, e, f);
 980     Geom::Matrix current = SP_ITEM(selection->itemList()->data)->transform; // take from the first item in selection
 981
 982     Geom::Matrix new_displayed;
 983     if (_check_replace_matrix.get_active()) {
 984         new_displayed = current;
 985     } else {
 986         new_displayed = current.inverse() * displayed;
 987     }
 988
 989     _scalar_transform_a.setValue(new_displayed[0]);
 990     _scalar_transform_b.setValue(new_displayed[1]);
 991     _scalar_transform_c.setValue(new_displayed[2]);
 992     _scalar_transform_d.setValue(new_displayed[3]);
 993     _scalar_transform_e.setValue(new_displayed[4]);
 994     _scalar_transform_f.setValue(new_displayed[5]);
 995 }
 996
 997 void
 998 Transformation::onScaleProportionalToggled()
 999 {
1000     onScaleXValueChanged();
1001 }
1002
1003
1004 void
1005 Transformation::onClear()
1006 {
1007     int const page = _notebook.get_current_page();
1008
1009     switch (page) {
1010     case PAGE_MOVE: {
1011         Inkscape::Selection *selection = _getSelection();
1012         if (!selection || selection->isEmpty() || _check_move_relative.get_active()) {
1013             _scalar_move_horizontal.setValue(0);
1014             _scalar_move_vertical.setValue(0);
1015         } else {
1016             Geom::OptRect bbox = selection->bounds();
1017             if (bbox) {
1018                 _scalar_move_horizontal.setValue(bbox->min()[Geom::X], "px");
1019                 _scalar_move_vertical.setValue(bbox->min()[Geom::Y], "px");
1020             }
1021         }
1022         break;
1023     }
1024     case PAGE_ROTATE: {
1025         _scalar_rotate.setValue(0);
1026         break;
1027     }
1028     case PAGE_SCALE: {
1029         _scalar_scale_horizontal.setValue(100, "%");
1030         _scalar_scale_vertical.setValue(100, "%");
1031         break;
1032     }
1033     case PAGE_SKEW: {
1034         _scalar_skew_horizontal.setValue(0);
1035         _scalar_skew_vertical.setValue(0);
1036         break;
1037     }
1038     case PAGE_TRANSFORM: {
1039         _scalar_transform_a.setValue(1);
1040         _scalar_transform_b.setValue(0);
1041         _scalar_transform_c.setValue(0);
1042         _scalar_transform_d.setValue(1);
1043         _scalar_transform_e.setValue(0);
1044         _scalar_transform_f.setValue(0);
1045         break;
1046     }
1047     }
1048 }
1049
1050 void
1051 Transformation::onApplySeparatelyToggled()
1052 {
1053     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
1054     prefs->setBool("/dialogs/transformation/applyseparately", _check_apply_separately.get_active());
1055 }
1056
1057
1058 } // namespace Dialog
1059 } // namespace UI
1060 } // namespace Inkscape
1061
1062 /*
1063   Local Variables:
1064   mode:c++
1065   c-file-style:"stroustrup"
1066   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1067   indent-tabs-mode:nil
1068   fill-column:99
1069   End:
1070 */
1071 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :