src/ui/dialog/color-item.cpp

   1 /** @file
   2  * @brief Inkscape color swatch UI item.
   3  */
   4 /* Authors:
   5  *   Jon A. Cruz
   6  *
   7  * Copyright (C) 2010 Jon A. Cruz
   8  *
   9  * Released under GNU GPL, read the file 'COPYING' for more information
  10  */
  11
  12 #include <errno.h>
  13 #include <glibmm/i18n.h>
  14 #include <gtkmm/label.h>
  15
  16 #include "color-item.h"
  17
  18 #include "desktop.h"
  19 #include "desktop-handles.h"
  20 #include "desktop-style.h"
  21 #include "display/nr-plain-stuff.h"
  22 #include "document.h"
  23 #include "inkscape.h" // for SP_ACTIVE_DESKTOP
  24 #include "io/resource.h"
  25 #include "io/sys.h"
  26 #include "message-context.h"
  27 #include "sp-gradient.h"
  28 #include "sp-item.h"
  29 #include "svg/svg-color.h"
  30 #include "xml/node.h"
  31 #include "xml/repr.h"
  32
  33 #include "color.h" // for SP_RGBA32_U_COMPOSE
  34
  35
  36 namespace Inkscape {
  37 namespace UI {
  38 namespace Dialogs {
  39
  40 static std::vector<std::string> mimeStrings;
  41 static std::map<std::string, guint> mimeToInt;
  42
  43
  44 #if ENABLE_MAGIC_COLORS
  45 // TODO remove this soon:
  46 extern std::vector<SwatchPage*> possible;
  47 #endif // ENABLE_MAGIC_COLORS
  48
  49
  50 #if ENABLE_MAGIC_COLORS
  51 static bool bruteForce( SPDocument* document, Inkscape::XML::Node* node, Glib::ustring const& match, int r, int g, int b )
  52 {
  53     bool changed = false;
  54
  55     if ( node ) {
  56         gchar const * val = node->attribute("inkscape:x-fill-tag");
  57         if ( val  && (match == val) ) {
  58             SPObject *obj = document->getObjectByRepr( node );
  59
  60             gchar c[64] = {0};
  61             sp_svg_write_color( c, sizeof(c), SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
  62             SPCSSAttr *css = sp_repr_css_attr_new();
  63             sp_repr_css_set_property( css, "fill", c );
  64
  65             sp_desktop_apply_css_recursive( obj, css, true );
  66             static_cast<SPItem*>(obj)->updateRepr();
  67
  68             changed = true;
  69         }
  70
  71         val = node->attribute("inkscape:x-stroke-tag");
  72         if ( val  && (match == val) ) {
  73             SPObject *obj = document->getObjectByRepr( node );
  74
  75             gchar c[64] = {0};
  76             sp_svg_write_color( c, sizeof(c), SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
  77             SPCSSAttr *css = sp_repr_css_attr_new();
  78             sp_repr_css_set_property( css, "stroke", c );
  79
  80             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
  81             ((SPItem*)obj)->updateRepr();
  82
  83             changed = true;
  84         }
  85
  86         Inkscape::XML::Node* first = node->firstChild();
  87         changed |= bruteForce( document, first, match, r, g, b );
  88
  89         changed |= bruteForce( document, node->next(), match, r, g, b );
  90     }
  91
  92     return changed;
  93 }
  94 #endif // ENABLE_MAGIC_COLORS
  95
  96 static void handleClick( GtkWidget* /*widget*/, gpointer callback_data ) {
  97     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
  98     if ( item ) {
  99         item->buttonClicked(false);
 100     }
 101 }
 102
 103 static void handleSecondaryClick( GtkWidget* /*widget*/, gint /*arg1*/, gpointer callback_data ) {
 104     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 105     if ( item ) {
 106         item->buttonClicked(true);
 107     }
 108 }
 109
 110 static gboolean handleEnterNotify( GtkWidget* /*widget*/, GdkEventCrossing* /*event*/, gpointer callback_data ) {
 111     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 112     if ( item ) {
 113         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 114         if ( desktop ) {
 115             gchar* msg = g_strdup_printf(_("Color: <b>%s</b>; <b>Click</b> to set fill, <b>Shift+click</b> to set stroke"),
 116                                          item->def.descr.c_str());
 117             desktop->tipsMessageContext()->set(Inkscape::INFORMATION_MESSAGE, msg);
 118             g_free(msg);
 119         }
 120     }
 121     return FALSE;
 122 }
 123
 124 static gboolean handleLeaveNotify( GtkWidget* /*widget*/, GdkEventCrossing* /*event*/, gpointer callback_data ) {
 125     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 126     if ( item ) {
 127         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 128         if ( desktop ) {
 129             desktop->tipsMessageContext()->clear();
 130         }
 131     }
 132     return FALSE;
 133 }
 134
 135 static void dieDieDie( GtkObject *obj, gpointer user_data )
 136 {
 137     g_message("die die die %p  %p", obj, user_data );
 138 }
 139
 140 static bool getBlock( std::string& dst, guchar ch, std::string const str )
 141 {
 142     bool good = false;
 143     std::string::size_type pos = str.find(ch);
 144     if ( pos != std::string::npos )
 145     {
 146         std::string::size_type pos2 = str.find( '(', pos );
 147         if ( pos2 != std::string::npos ) {
 148             std::string::size_type endPos = str.find( ')', pos2 );
 149             if ( endPos != std::string::npos ) {
 150                 dst = str.substr( pos2 + 1, (endPos - pos2 - 1) );
 151                 good = true;
 152             }
 153         }
 154     }
 155     return good;
 156 }
 157
 158 static bool popVal( guint64& numVal, std::string& str )
 159 {
 160     bool good = false;
 161     std::string::size_type endPos = str.find(',');
 162     if ( endPos == std::string::npos ) {
 163         endPos = str.length();
 164     }
 165
 166     if ( endPos != std::string::npos && endPos > 0 ) {
 167         std::string xxx = str.substr( 0, endPos );
 168         const gchar* ptr = xxx.c_str();
 169         gchar* endPtr = 0;
 170         numVal = g_ascii_strtoull( ptr, &endPtr, 10 );
 171         if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 172             // overflow
 173         } else if ( (numVal == 0) && (endPtr == ptr) ) {
 174             // failed conversion
 175         } else {
 176             good = true;
 177             str.erase( 0, endPos + 1 );
 178         }
 179     }
 180
 181     return good;
 182 }
 183
 184 // TODO resolve this more cleanly:
 185 extern gboolean colorItemHandleButtonPress( GtkWidget* /*widget*/, GdkEventButton* event, gpointer user_data);
 186
 187 static void colorItemDragBegin( GtkWidget */*widget*/, GdkDragContext* dc, gpointer data )
 188 {
 189     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 190     if ( item )
 191     {
 192         using Inkscape::IO::Resource::get_path;
 193         using Inkscape::IO::Resource::ICONS;
 194         using Inkscape::IO::Resource::SYSTEM;
 195         int width = 32;
 196         int height = 24;
 197
 198         if (item->def.getType() != ege::PaintDef::RGB){
 199             GError *error = NULL;
 200             gsize bytesRead = 0;
 201             gsize bytesWritten = 0;
 202             gchar *localFilename = g_filename_from_utf8( get_path(SYSTEM, ICONS, "remove-color.png"),
 203                                                  -1,
 204                                                  &bytesRead,
 205                                                  &bytesWritten,
 206                                                  &error);
 207             GdkPixbuf* pixbuf = gdk_pixbuf_new_from_file_at_scale(localFilename, width, height, FALSE, &error);
 208             g_free(localFilename);
 209             gtk_drag_set_icon_pixbuf( dc, pixbuf, 0, 0 );
 210         } else {
 211             GdkPixbuf* pixbuf = 0;
 212             if ( item->getGradient() ){
 213                 guchar* px = g_new( guchar, 3 * height * width );
 214                 nr_render_checkerboard_rgb( px, width, height, 3 * width, 0, 0 );
 215
 216                 sp_gradient_render_vector_block_rgb( item->getGradient(),
 217                                                      px, width, height, 3 * width,
 218                                                      0, width, TRUE );
 219
 220                 pixbuf = gdk_pixbuf_new_from_data( px, GDK_COLORSPACE_RGB, FALSE, 8,
 221                                                    width, height, width * 3,
 222                                                    0, // add delete function
 223                                                    0 );
 224             } else {
 225                 Glib::RefPtr<Gdk::Pixbuf> thumb = Gdk::Pixbuf::create( Gdk::COLORSPACE_RGB, false, 8, width, height );
 226                 guint32 fillWith = (0xff000000 & (item->def.getR() << 24))
 227                     | (0x00ff0000 & (item->def.getG() << 16))
 228                     | (0x0000ff00 & (item->def.getB() <<  8));
 229                 thumb->fill( fillWith );
 230                 pixbuf = thumb->gobj();
 231                 g_object_ref(G_OBJECT(pixbuf));
 232             }
 233             gtk_drag_set_icon_pixbuf( dc, pixbuf, 0, 0 );
 234         }
 235     }
 236
 237 }
 238
 239 //"drag-drop"
 240 // gboolean dragDropColorData( GtkWidget *widget,
 241 //                             GdkDragContext *drag_context,
 242 //                             gint x,
 243 //                             gint y,
 244 //                             guint time,
 245 //                             gpointer user_data)
 246 // {
 247 // // TODO finish
 248
 249 //     return TRUE;
 250 // }
 251
 252
 253 SwatchPage::SwatchPage() :
 254     _name(),
 255     _prefWidth(0),
 256     _colors()
 257 {
 258 }
 259
 260 SwatchPage::~SwatchPage()
 261 {
 262 }
 263
 264
 265 ColorItem::ColorItem(ege::PaintDef::ColorType type) :
 266     Previewable(),
 267     def(type),
 268     tips(),
 269     _previews(),
 270     _isFill(false),
 271     _isStroke(false),
 272     _isLive(false),
 273     _linkIsTone(false),
 274     _linkPercent(0),
 275     _linkGray(0),
 276     _linkSrc(0),
 277     _grad(0),
 278     _pixData(0),
 279     _pixWidth(0),
 280     _pixHeight(0),
 281     _listeners()
 282 {
 283 }
 284
 285 ColorItem::ColorItem( unsigned int r, unsigned int g, unsigned int b, Glib::ustring& name ) :
 286     Previewable(),
 287     def( r, g, b, name ),
 288     tips(),
 289     _previews(),
 290     _isFill(false),
 291     _isStroke(false),
 292     _isLive(false),
 293     _linkIsTone(false),
 294     _linkPercent(0),
 295     _linkGray(0),
 296     _linkSrc(0),
 297     _grad(0),
 298     _pixData(0),
 299     _pixWidth(0),
 300     _pixHeight(0),
 301     _listeners()
 302 {
 303 }
 304
 305 ColorItem::~ColorItem()
 306 {
 307 }
 308
 309 ColorItem::ColorItem(ColorItem const &other) :
 310     Inkscape::UI::Previewable()
 311 {
 312     if ( this != &other ) {
 313         *this = other;
 314     }
 315 }
 316
 317 ColorItem &ColorItem::operator=(ColorItem const &other)
 318 {
 319     if ( this != &other ) {
 320         def = other.def;
 321
 322         // TODO - correct linkage
 323         _linkSrc = other._linkSrc;
 324         g_message("Erk!");
 325     }
 326     return *this;
 327 }
 328
 329 void ColorItem::setState( bool fill, bool stroke )
 330 {
 331     if ( (_isFill != fill) || (_isStroke != stroke) ) {
 332         _isFill = fill;
 333         _isStroke = stroke;
 334
 335         for ( std::vector<Gtk::Widget*>::iterator it = _previews.begin(); it != _previews.end(); ++it ) {
 336             Gtk::Widget* widget = *it;
 337             if ( IS_EEK_PREVIEW(widget->gobj()) ) {
 338                 EekPreview * preview = EEK_PREVIEW(widget->gobj());
 339
 340                 int val = eek_preview_get_linked( preview );
 341                 val &= ~(PREVIEW_FILL | PREVIEW_STROKE);
 342                 if ( _isFill ) {
 343                     val |= PREVIEW_FILL;
 344                 }
 345                 if ( _isStroke ) {
 346                     val |= PREVIEW_STROKE;
 347                 }
 348                 eek_preview_set_linked( preview, static_cast<LinkType>(val) );
 349             }
 350         }
 351     }
 352 }
 353
 354 void ColorItem::setGradient(SPGradient *grad)
 355 {
 356     if (_grad != grad) {
 357         _grad = grad;
 358         // TODO regen and push to listeners
 359     }
 360 }
 361
 362 void ColorItem::setPixData(guchar* px, int width, int height)
 363 {
 364     if (px != _pixData) {
 365         if (_pixData) {
 366             g_free(_pixData);
 367         }
 368         _pixData = px;
 369         _pixWidth = width;
 370         _pixHeight = height;
 371
 372         _updatePreviews();
 373     }
 374 }
 375
 376 void ColorItem::_dragGetColorData( GtkWidget */*widget*/,
 377                                    GdkDragContext */*drag_context*/,
 378                                    GtkSelectionData *data,
 379                                    guint info,
 380                                    guint /*time*/,
 381                                    gpointer user_data)
 382 {
 383     ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 384     std::string key;
 385     if ( info < mimeStrings.size() ) {
 386         key = mimeStrings[info];
 387     } else {
 388         g_warning("ERROR: unknown value (%d)", info);
 389     }
 390
 391     if ( !key.empty() ) {
 392         char* tmp = 0;
 393         int len = 0;
 394         int format = 0;
 395         item->def.getMIMEData(key, tmp, len, format);
 396         if ( tmp ) {
 397             GdkAtom dataAtom = gdk_atom_intern( key.c_str(), FALSE );
 398             gtk_selection_data_set( data, dataAtom, format, (guchar*)tmp, len );
 399             delete[] tmp;
 400         }
 401     }
 402 }
 403
 404 void ColorItem::_dropDataIn( GtkWidget */*widget*/,
 405                              GdkDragContext */*drag_context*/,
 406                              gint /*x*/, gint /*y*/,
 407                              GtkSelectionData */*data*/,
 408                              guint /*info*/,
 409                              guint /*event_time*/,
 410                              gpointer /*user_data*/)
 411 {
 412 }
 413
 414 void ColorItem::_colorDefChanged(void* data)
 415 {
 416     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 417     if ( item ) {
 418         item->_updatePreviews();
 419     }
 420 }
 421
 422 void ColorItem::_updatePreviews()
 423 {
 424     for ( std::vector<Gtk::Widget*>::iterator it =  _previews.begin(); it != _previews.end(); ++it ) {
 425         Gtk::Widget* widget = *it;
 426         if ( IS_EEK_PREVIEW(widget->gobj()) ) {
 427             EekPreview * preview = EEK_PREVIEW(widget->gobj());
 428
 429             _regenPreview(preview);
 430
 431             widget->queue_draw();
 432         }
 433     }
 434
 435     for ( std::vector<ColorItem*>::iterator it = _listeners.begin(); it != _listeners.end(); ++it ) {
 436         guint r = def.getR();
 437         guint g = def.getG();
 438         guint b = def.getB();
 439
 440         if ( (*it)->_linkIsTone ) {
 441             r = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 442             g = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 443             b = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 444         } else {
 445             r = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 446             g = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 447             b = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 448         }
 449
 450         (*it)->def.setRGB( r, g, b );
 451     }
 452
 453
 454 #if ENABLE_MAGIC_COLORS
 455     // Look for objects using this color
 456     {
 457         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 458         if ( desktop ) {
 459             SPDocument* document = sp_desktop_document( desktop );
 460             Inkscape::XML::Node *rroot =  sp_document_repr_root( document );
 461             if ( rroot ) {
 462
 463                 // Find where this thing came from
 464                 Glib::ustring paletteName;
 465                 bool found = false;
 466                 int index = 0;
 467                 for ( std::vector<SwatchPage*>::iterator it2 = possible.begin(); it2 != possible.end() && !found; ++it2 ) {
 468                     SwatchPage* curr = *it2;
 469                     index = 0;
 470                     for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 471                         if ( this == *zz ) {
 472                             found = true;
 473                             paletteName = curr->_name;
 474                             break;
 475                         } else {
 476                             index++;
 477                         }
 478                     }
 479                 }
 480
 481                 if ( !paletteName.empty() ) {
 482                     gchar* str = g_strdup_printf("%d|", index);
 483                     paletteName.insert( 0, str );
 484                     g_free(str);
 485                     str = 0;
 486
 487                     if ( bruteForce( document, rroot, paletteName, def.getR(), def.getG(), def.getB() ) ) {
 488                         sp_document_done( document , SP_VERB_DIALOG_SWATCHES,
 489                                           _("Change color definition"));
 490                     }
 491                 }
 492             }
 493         }
 494     }
 495 #endif // ENABLE_MAGIC_COLORS
 496
 497 }
 498
 499 void ColorItem::_regenPreview(EekPreview * preview)
 500 {
 501     if ( def.getType() != ege::PaintDef::RGB ) {
 502         using Inkscape::IO::Resource::get_path;
 503         using Inkscape::IO::Resource::ICONS;
 504         using Inkscape::IO::Resource::SYSTEM;
 505         GError *error = NULL;
 506         gsize bytesRead = 0;
 507         gsize bytesWritten = 0;
 508         gchar *localFilename = g_filename_from_utf8( get_path(SYSTEM, ICONS, "remove-color.png"),
 509                                                      -1,
 510                                                      &bytesRead,
 511                                                      &bytesWritten,
 512                                                      &error);
 513         GdkPixbuf* pixbuf = gdk_pixbuf_new_from_file(localFilename, &error);
 514         if (!pixbuf) {
 515             g_warning("Null pixbuf for %p [%s]", localFilename, localFilename );
 516         }
 517         g_free(localFilename);
 518
 519         eek_preview_set_pixbuf( preview, pixbuf );
 520     }
 521     else if ( !_pixData ){
 522         eek_preview_set_color( preview,
 523                                (def.getR() << 8) | def.getR(),
 524                                (def.getG() << 8) | def.getG(),
 525                                (def.getB() << 8) | def.getB() );
 526     } else {
 527         GdkPixbuf* pixbuf = gdk_pixbuf_new_from_data( _pixData, GDK_COLORSPACE_RGB, FALSE, 8,
 528                                                       _pixWidth, _pixHeight, _pixWidth * 3,
 529                                                       0, // add delete function
 530                                                       0 );
 531         eek_preview_set_pixbuf( preview, pixbuf );
 532     }
 533
 534     eek_preview_set_linked( preview, (LinkType)((_linkSrc ? PREVIEW_LINK_IN:0)
 535                                                 | (_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 536                                                 | (_isLive ? PREVIEW_LINK_OTHER:0)) );
 537 }
 538
 539 Gtk::Widget* ColorItem::getPreview(PreviewStyle style, ViewType view, ::PreviewSize size, guint ratio)
 540 {
 541     Gtk::Widget* widget = 0;
 542     if ( style == PREVIEW_STYLE_BLURB) {
 543         Gtk::Label *lbl = new Gtk::Label(def.descr);
 544         lbl->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
 545         widget = lbl;
 546     } else {
 547 //         Glib::ustring blank("          ");
 548 //         if ( size == Inkscape::ICON_SIZE_MENU || size == Inkscape::ICON_SIZE_DECORATION ) {
 549 //             blank = " ";
 550 //         }
 551
 552         GtkWidget* eekWidget = eek_preview_new();
 553         EekPreview * preview = EEK_PREVIEW(eekWidget);
 554         Gtk::Widget* newBlot = Glib::wrap(eekWidget);
 555
 556         _regenPreview(preview);
 557
 558         eek_preview_set_details( preview, (::PreviewStyle)style, (::ViewType)view, (::PreviewSize)size, ratio );
 559
 560         def.addCallback( _colorDefChanged, this );
 561
 562         GValue val = {0, {{0}, {0}}};
 563         g_value_init( &val, G_TYPE_BOOLEAN );
 564         g_value_set_boolean( &val, FALSE );
 565         g_object_set_property( G_OBJECT(preview), "focus-on-click", &val );
 566
 567 /*
 568         Gtk::Button *btn = new Gtk::Button(blank);
 569         Gdk::Color color;
 570         color.set_rgb((_r << 8)|_r, (_g << 8)|_g, (_b << 8)|_b);
 571         btn->modify_bg(Gtk::STATE_NORMAL, color);
 572         btn->modify_bg(Gtk::STATE_ACTIVE, color);
 573         btn->modify_bg(Gtk::STATE_PRELIGHT, color);
 574         btn->modify_bg(Gtk::STATE_SELECTED, color);
 575
 576         Gtk::Widget* newBlot = btn;
 577 */
 578
 579         tips.set_tip((*newBlot), def.descr);
 580
 581 /*
 582         newBlot->signal_clicked().connect( sigc::mem_fun(*this, &ColorItem::buttonClicked) );
 583
 584         sigc::signal<void> type_signal_something;
 585 */
 586
 587         g_signal_connect( G_OBJECT(newBlot->gobj()),
 588                           "clicked",
 589                           G_CALLBACK(handleClick),
 590                           this);
 591
 592         g_signal_connect( G_OBJECT(newBlot->gobj()),
 593                           "alt-clicked",
 594                           G_CALLBACK(handleSecondaryClick),
 595                           this);
 596
 597         g_signal_connect( G_OBJECT(newBlot->gobj()),
 598                           "button-press-event",
 599                           G_CALLBACK(colorItemHandleButtonPress),
 600                           this);
 601
 602         {
 603             std::vector<std::string> listing = def.getMIMETypes();
 604             int entryCount = listing.size();
 605             GtkTargetEntry* entries = new GtkTargetEntry[entryCount];
 606             GtkTargetEntry* curr = entries;
 607             for ( std::vector<std::string>::iterator it = listing.begin(); it != listing.end(); ++it ) {
 608                 curr->target = g_strdup(it->c_str());
 609                 curr->flags = 0;
 610                 if ( mimeToInt.find(*it) == mimeToInt.end() ){
 611                     // these next lines are order-dependent:
 612                     mimeToInt[*it] = mimeStrings.size();
 613                     mimeStrings.push_back(*it);
 614                 }
 615                 curr->info = mimeToInt[curr->target];
 616                 curr++;
 617             }
 618             gtk_drag_source_set( GTK_WIDGET(newBlot->gobj()),
 619                                  GDK_BUTTON1_MASK,
 620                                  entries, entryCount,
 621                                  GdkDragAction(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
 622             for ( int i = 0; i < entryCount; i++ ) {
 623                 g_free(entries[i].target);
 624             }
 625             delete[] entries;
 626         }
 627
 628         g_signal_connect( G_OBJECT(newBlot->gobj()),
 629                           "drag-data-get",
 630                           G_CALLBACK(ColorItem::_dragGetColorData),
 631                           this);
 632
 633         g_signal_connect( G_OBJECT(newBlot->gobj()),
 634                           "drag-begin",
 635                           G_CALLBACK(colorItemDragBegin),
 636                           this );
 637
 638         g_signal_connect( G_OBJECT(newBlot->gobj()),
 639                           "enter-notify-event",
 640                           G_CALLBACK(handleEnterNotify),
 641                           this);
 642
 643         g_signal_connect( G_OBJECT(newBlot->gobj()),
 644                           "leave-notify-event",
 645                           G_CALLBACK(handleLeaveNotify),
 646                           this);
 647
 648 //         g_signal_connect( G_OBJECT(newBlot->gobj()),
 649 //                           "drag-drop",
 650 //                           G_CALLBACK(dragDropColorData),
 651 //                           this);
 652
 653         if ( def.isEditable() )
 654         {
 655 //             gtk_drag_dest_set( GTK_WIDGET(newBlot->gobj()),
 656 //                                GTK_DEST_DEFAULT_ALL,
 657 //                                destColorTargets,
 658 //                                G_N_ELEMENTS(destColorTargets),
 659 //                                GdkDragAction(GDK_ACTION_COPY | GDK_ACTION_MOVE) );
 660
 661
 662 //             g_signal_connect( G_OBJECT(newBlot->gobj()),
 663 //                               "drag-data-received",
 664 //                               G_CALLBACK(_dropDataIn),
 665 //                               this );
 666         }
 667
 668         g_signal_connect( G_OBJECT(newBlot->gobj()),
 669                           "destroy",
 670                           G_CALLBACK(dieDieDie),
 671                           this);
 672
 673
 674         widget = newBlot;
 675     }
 676
 677     _previews.push_back( widget );
 678
 679     return widget;
 680 }
 681
 682 void ColorItem::buttonClicked(bool secondary)
 683 {
 684     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 685     if (desktop) {
 686         char const * attrName = secondary ? "stroke" : "fill";
 687
 688         SPCSSAttr *css = sp_repr_css_attr_new();
 689         Glib::ustring descr;
 690         switch (def.getType()) {
 691             case ege::PaintDef::CLEAR: {
 692                 // TODO actually make this clear
 693                 sp_repr_css_set_property( css, attrName, "none" );
 694                 descr = secondary? _("Remove stroke color") : _("Remove fill color");
 695                 break;
 696             }
 697             case ege::PaintDef::NONE: {
 698                 sp_repr_css_set_property( css, attrName, "none" );
 699                 descr = secondary? _("Set stroke color to none") : _("Set fill color to none");
 700                 break;
 701             }
 702             case ege::PaintDef::RGB: {
 703                 Glib::ustring colorspec;
 704                 if ( _grad ){
 705                     colorspec = "url(#";
 706                     colorspec += _grad->getId();
 707                     colorspec += ")";
 708                 } else {
 709                     gchar c[64];
 710                     guint32 rgba = (def.getR() << 24) | (def.getG() << 16) | (def.getB() << 8) | 0xff;
 711                     sp_svg_write_color(c, sizeof(c), rgba);
 712                     colorspec = c;
 713                 }
 714                 sp_repr_css_set_property( css, attrName, colorspec.c_str() );
 715                 descr = secondary? _("Set stroke color from swatch") : _("Set fill color from swatch");
 716                 break;
 717             }
 718         }
 719         sp_desktop_set_style(desktop, css);
 720         sp_repr_css_attr_unref(css);
 721
 722         sp_document_done( sp_desktop_document(desktop), SP_VERB_DIALOG_SWATCHES, descr.c_str() );
 723     }
 724 }
 725
 726 void ColorItem::_wireMagicColors( SwatchPage *colorSet )
 727 {
 728     if ( colorSet )
 729     {
 730         for ( std::vector<ColorItem*>::iterator it = colorSet->_colors.begin(); it != colorSet->_colors.end(); ++it )
 731         {
 732             std::string::size_type pos = (*it)->def.descr.find("*{");
 733             if ( pos != std::string::npos )
 734             {
 735                 std::string subby = (*it)->def.descr.substr( pos + 2 );
 736                 std::string::size_type endPos = subby.find("}*");
 737                 if ( endPos != std::string::npos )
 738                 {
 739                     subby.erase( endPos );
 740                     //g_message("FOUND MAGIC at '%s'", (*it)->def.descr.c_str());
 741                     //g_message("               '%s'", subby.c_str());
 742
 743                     if ( subby.find('E') != std::string::npos )
 744                     {
 745                         (*it)->def.setEditable( true );
 746                     }
 747
 748                     if ( subby.find('L') != std::string::npos )
 749                     {
 750                         (*it)->_isLive = true;
 751                     }
 752
 753                     std::string part;
 754                     // Tint. index + 1 more val.
 755                     if ( getBlock( part, 'T', subby ) ) {
 756                         guint64 colorIndex = 0;
 757                         if ( popVal( colorIndex, part ) ) {
 758                             guint64 percent = 0;
 759                             if ( popVal( percent, part ) ) {
 760                                 (*it)->_linkTint( *(colorSet->_colors[colorIndex]), percent );
 761                             }
 762                         }
 763                     }
 764
 765                     // Shade/tone. index + 1 or 2 more val.
 766                     if ( getBlock( part, 'S', subby ) ) {
 767                         guint64 colorIndex = 0;
 768                         if ( popVal( colorIndex, part ) ) {
 769                             guint64 percent = 0;
 770                             if ( popVal( percent, part ) ) {
 771                                 guint64 grayLevel = 0;
 772                                 if ( !popVal( grayLevel, part ) ) {
 773                                     grayLevel = 0;
 774                                 }
 775                                 (*it)->_linkTone( *(colorSet->_colors[colorIndex]), percent, grayLevel );
 776                             }
 777                         }
 778                     }
 779
 780                 }
 781             }
 782         }
 783     }
 784 }
 785
 786
 787 void ColorItem::_linkTint( ColorItem& other, int percent )
 788 {
 789     if ( !_linkSrc )
 790     {
 791         other._listeners.push_back(this);
 792         _linkIsTone = false;
 793         _linkPercent = percent;
 794         if ( _linkPercent > 100 )
 795             _linkPercent = 100;
 796         if ( _linkPercent < 0 )
 797             _linkPercent = 0;
 798         _linkGray = 0;
 799         _linkSrc = &other;
 800
 801         ColorItem::_colorDefChanged(&other);
 802     }
 803 }
 804
 805 void ColorItem::_linkTone( ColorItem& other, int percent, int grayLevel )
 806 {
 807     if ( !_linkSrc )
 808     {
 809         other._listeners.push_back(this);
 810         _linkIsTone = true;
 811         _linkPercent = percent;
 812         if ( _linkPercent > 100 )
 813             _linkPercent = 100;
 814         if ( _linkPercent < 0 )
 815             _linkPercent = 0;
 816         _linkGray = grayLevel;
 817         _linkSrc = &other;
 818
 819         ColorItem::_colorDefChanged(&other);
 820     }
 821 }
 822
 823 } // namespace Dialogs
 824 } // namespace UI
 825 } // namespace Inkscape
 826
 827 /*
 828   Local Variables:
 829   mode:c++
 830   c-file-style:"stroustrup"
 831   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 832   indent-tabs-mode:nil
 833   fill-column:99
 834   End:
 835 */
 836 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :