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