src/ui/dialog/color-item.cpp

   1 /** @file
   2  * @brief Inkscape color swatch UI item.
   3  */
   4 /* Authors:
   5  *   Jon A. Cruz
   6  *   Abhishek Sharma
   7  *
   8  * Copyright (C) 2010 Jon A. Cruz
   9  *
  10  * Released under GNU GPL, read the file 'COPYING' for more information
  11  */
  12
  13 #include <errno.h>
  14 #include <glibmm/i18n.h>
  15 #include <gtkmm/label.h>
  16 #include <gtk/gtkdnd.h>
  17
  18 #include "color-item.h"
  19
  20 #include "desktop.h"
  21 #include "desktop-handles.h"
  22 #include "desktop-style.h"
  23 #include "display/nr-plain-stuff.h"
  24 #include "document.h"
  25 #include "inkscape.h" // for SP_ACTIVE_DESKTOP
  26 #include "io/resource.h"
  27 #include "io/sys.h"
  28 #include "message-context.h"
  29 #include "sp-gradient.h"
  30 #include "sp-item.h"
  31 #include "svg/svg-color.h"
  32 #include "xml/node.h"
  33 #include "xml/repr.h"
  34
  35 #include "color.h" // for SP_RGBA32_U_COMPOSE
  36
  37
  38 namespace Inkscape {
  39 namespace UI {
  40 namespace Dialogs {
  41
  42 static std::vector<std::string> mimeStrings;
  43 static std::map<std::string, guint> mimeToInt;
  44
  45
  46 #if ENABLE_MAGIC_COLORS
  47 // TODO remove this soon:
  48 extern std::vector<SwatchPage*> possible;
  49 #endif // ENABLE_MAGIC_COLORS
  50
  51
  52 #if ENABLE_MAGIC_COLORS
  53 static bool bruteForce( SPDocument* document, Inkscape::XML::Node* node, Glib::ustring const& match, int r, int g, int b )
  54 {
  55     bool changed = false;
  56
  57     if ( node ) {
  58         gchar const * val = node->attribute("inkscape:x-fill-tag");
  59         if ( val  && (match == val) ) {
  60             SPObject *obj = document->getObjectByRepr( node );
  61
  62             gchar c[64] = {0};
  63             sp_svg_write_color( c, sizeof(c), SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
  64             SPCSSAttr *css = sp_repr_css_attr_new();
  65             sp_repr_css_set_property( css, "fill", c );
  66
  67             sp_desktop_apply_css_recursive( obj, css, true );
  68             static_cast<SPItem*>(obj)->updateRepr();
  69
  70             changed = true;
  71         }
  72
  73         val = node->attribute("inkscape:x-stroke-tag");
  74         if ( val  && (match == val) ) {
  75             SPObject *obj = document->getObjectByRepr( node );
  76
  77             gchar c[64] = {0};
  78             sp_svg_write_color( c, sizeof(c), SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
  79             SPCSSAttr *css = sp_repr_css_attr_new();
  80             sp_repr_css_set_property( css, "stroke", c );
  81
  82             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
  83             ((SPItem*)obj)->updateRepr();
  84
  85             changed = true;
  86         }
  87
  88         Inkscape::XML::Node* first = node->firstChild();
  89         changed |= bruteForce( document, first, match, r, g, b );
  90
  91         changed |= bruteForce( document, node->next(), match, r, g, b );
  92     }
  93
  94     return changed;
  95 }
  96 #endif // ENABLE_MAGIC_COLORS
  97
  98 static void handleClick( GtkWidget* /*widget*/, gpointer callback_data ) {
  99     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 100     if ( item ) {
 101         item->buttonClicked(false);
 102     }
 103 }
 104
 105 static void handleSecondaryClick( GtkWidget* /*widget*/, gint /*arg1*/, gpointer callback_data ) {
 106     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 107     if ( item ) {
 108         item->buttonClicked(true);
 109     }
 110 }
 111
 112 static gboolean handleEnterNotify( GtkWidget* /*widget*/, GdkEventCrossing* /*event*/, gpointer callback_data ) {
 113     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 114     if ( item ) {
 115         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 116         if ( desktop ) {
 117             gchar* msg = g_strdup_printf(_("Color: <b>%s</b>; <b>Click</b> to set fill, <b>Shift+click</b> to set stroke"),
 118                                          item->def.descr.c_str());
 119             desktop->tipsMessageContext()->set(Inkscape::INFORMATION_MESSAGE, msg);
 120             g_free(msg);
 121         }
 122     }
 123     return FALSE;
 124 }
 125
 126 static gboolean handleLeaveNotify( GtkWidget* /*widget*/, GdkEventCrossing* /*event*/, gpointer callback_data ) {
 127     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 128     if ( item ) {
 129         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 130         if ( desktop ) {
 131             desktop->tipsMessageContext()->clear();
 132         }
 133     }
 134     return FALSE;
 135 }
 136
 137 static void dieDieDie( GtkObject *obj, gpointer user_data )
 138 {
 139     g_message("die die die %p  %p", obj, user_data );
 140 }
 141
 142 static bool getBlock( std::string& dst, guchar ch, std::string const str )
 143 {
 144     bool good = false;
 145     std::string::size_type pos = str.find(ch);
 146     if ( pos != std::string::npos )
 147     {
 148         std::string::size_type pos2 = str.find( '(', pos );
 149         if ( pos2 != std::string::npos ) {
 150             std::string::size_type endPos = str.find( ')', pos2 );
 151             if ( endPos != std::string::npos ) {
 152                 dst = str.substr( pos2 + 1, (endPos - pos2 - 1) );
 153                 good = true;
 154             }
 155         }
 156     }
 157     return good;
 158 }
 159
 160 static bool popVal( guint64& numVal, std::string& str )
 161 {
 162     bool good = false;
 163     std::string::size_type endPos = str.find(',');
 164     if ( endPos == std::string::npos ) {
 165         endPos = str.length();
 166     }
 167
 168     if ( endPos != std::string::npos && endPos > 0 ) {
 169         std::string xxx = str.substr( 0, endPos );
 170         const gchar* ptr = xxx.c_str();
 171         gchar* endPtr = 0;
 172         numVal = g_ascii_strtoull( ptr, &endPtr, 10 );
 173         if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 174             // overflow
 175         } else if ( (numVal == 0) && (endPtr == ptr) ) {
 176             // failed conversion
 177         } else {
 178             good = true;
 179             str.erase( 0, endPos + 1 );
 180         }
 181     }
 182
 183     return good;
 184 }
 185
 186 // TODO resolve this more cleanly:
 187 extern gboolean colorItemHandleButtonPress( GtkWidget* /*widget*/, GdkEventButton* event, gpointer user_data);
 188
 189 static void colorItemDragBegin( GtkWidget */*widget*/, GdkDragContext* dc, gpointer data )
 190 {
 191     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 192     if ( item )
 193     {
 194         using Inkscape::IO::Resource::get_path;
 195         using Inkscape::IO::Resource::ICONS;
 196         using Inkscape::IO::Resource::SYSTEM;
 197         int width = 32;
 198         int height = 24;
 199
 200         if (item->def.getType() != ege::PaintDef::RGB){
 201             GError *error = NULL;
 202             gsize bytesRead = 0;
 203             gsize bytesWritten = 0;
 204             gchar *localFilename = g_filename_from_utf8( get_path(SYSTEM, ICONS, "remove-color.png"),
 205                                                  -1,
 206                                                  &bytesRead,
 207                                                  &bytesWritten,
 208                                                  &error);
 209             GdkPixbuf* pixbuf = gdk_pixbuf_new_from_file_at_scale(localFilename, width, height, FALSE, &error);
 210             g_free(localFilename);
 211             gtk_drag_set_icon_pixbuf( dc, pixbuf, 0, 0 );
 212         } else {
 213             GdkPixbuf* pixbuf = 0;
 214             if ( item->getGradient() ){
 215                 guchar* px = g_new( guchar, 3 * height * width );
 216                 nr_render_checkerboard_rgb( px, width, height, 3 * width, 0, 0 );
 217
 218                 sp_gradient_render_vector_block_rgb( item->getGradient(),
 219                                                      px, width, height, 3 * width,
 220                                                      0, width, TRUE );
 221
 222                 pixbuf = gdk_pixbuf_new_from_data( px, GDK_COLORSPACE_RGB, FALSE, 8,
 223                                                    width, height, width * 3,
 224                                                    0, // add delete function
 225                                                    0 );
 226             } else {
 227                 Glib::RefPtr<Gdk::Pixbuf> thumb = Gdk::Pixbuf::create( Gdk::COLORSPACE_RGB, false, 8, width, height );
 228                 guint32 fillWith = (0xff000000 & (item->def.getR() << 24))
 229                     | (0x00ff0000 & (item->def.getG() << 16))
 230                     | (0x0000ff00 & (item->def.getB() <<  8));
 231                 thumb->fill( fillWith );
 232                 pixbuf = thumb->gobj();
 233                 g_object_ref(G_OBJECT(pixbuf));
 234             }
 235             gtk_drag_set_icon_pixbuf( dc, pixbuf, 0, 0 );
 236         }
 237     }
 238
 239 }
 240
 241 //"drag-drop"
 242 // gboolean dragDropColorData( GtkWidget *widget,
 243 //                             GdkDragContext *drag_context,
 244 //                             gint x,
 245 //                             gint y,
 246 //                             guint time,
 247 //                             gpointer user_data)
 248 // {
 249 // // TODO finish
 250
 251 //     return TRUE;
 252 // }
 253
 254
 255 SwatchPage::SwatchPage() :
 256     _name(),
 257     _prefWidth(0),
 258     _colors()
 259 {
 260 }
 261
 262 SwatchPage::~SwatchPage()
 263 {
 264 }
 265
 266
 267 ColorItem::ColorItem(ege::PaintDef::ColorType type) :
 268     Previewable(),
 269     def(type),
 270     tips(),
 271     _previews(),
 272     _isFill(false),
 273     _isStroke(false),
 274     _isLive(false),
 275     _linkIsTone(false),
 276     _linkPercent(0),
 277     _linkGray(0),
 278     _linkSrc(0),
 279     _grad(0),
 280     _pixData(0),
 281     _pixWidth(0),
 282     _pixHeight(0),
 283     _listeners()
 284 {
 285 }
 286
 287 ColorItem::ColorItem( unsigned int r, unsigned int g, unsigned int b, Glib::ustring& name ) :
 288     Previewable(),
 289     def( r, g, b, name ),
 290     tips(),
 291     _previews(),
 292     _isFill(false),
 293     _isStroke(false),
 294     _isLive(false),
 295     _linkIsTone(false),
 296     _linkPercent(0),
 297     _linkGray(0),
 298     _linkSrc(0),
 299     _grad(0),
 300     _pixData(0),
 301     _pixWidth(0),
 302     _pixHeight(0),
 303     _listeners()
 304 {
 305 }
 306
 307 ColorItem::~ColorItem()
 308 {
 309 }
 310
 311 ColorItem::ColorItem(ColorItem const &other) :
 312     Inkscape::UI::Previewable()
 313 {
 314     if ( this != &other ) {
 315         *this = other;
 316     }
 317 }
 318
 319 ColorItem &ColorItem::operator=(ColorItem const &other)
 320 {
 321     if ( this != &other ) {
 322         def = other.def;
 323
 324         // TODO - correct linkage
 325         _linkSrc = other._linkSrc;
 326         g_message("Erk!");
 327     }
 328     return *this;
 329 }
 330
 331 void ColorItem::setState( bool fill, bool stroke )
 332 {
 333     if ( (_isFill != fill) || (_isStroke != stroke) ) {
 334         _isFill = fill;
 335         _isStroke = stroke;
 336
 337         for ( std::vector<Gtk::Widget*>::iterator it = _previews.begin(); it != _previews.end(); ++it ) {
 338             Gtk::Widget* widget = *it;
 339             if ( IS_EEK_PREVIEW(widget->gobj()) ) {
 340                 EekPreview * preview = EEK_PREVIEW(widget->gobj());
 341
 342                 int val = eek_preview_get_linked( preview );
 343                 val &= ~(PREVIEW_FILL | PREVIEW_STROKE);
 344                 if ( _isFill ) {
 345                     val |= PREVIEW_FILL;
 346                 }
 347                 if ( _isStroke ) {
 348                     val |= PREVIEW_STROKE;
 349                 }
 350                 eek_preview_set_linked( preview, static_cast<LinkType>(val) );
 351             }
 352         }
 353     }
 354 }
 355
 356 void ColorItem::setGradient(SPGradient *grad)
 357 {
 358     if (_grad != grad) {
 359         _grad = grad;
 360         // TODO regen and push to listeners
 361     }
 362 }
 363
 364 void ColorItem::setPixData(guchar* px, int width, int height)
 365 {
 366     if (px != _pixData) {
 367         if (_pixData) {
 368             g_free(_pixData);
 369         }
 370         _pixData = px;
 371         _pixWidth = width;
 372         _pixHeight = height;
 373
 374         _updatePreviews();
 375     }
 376 }
 377
 378 void ColorItem::_dragGetColorData( GtkWidget */*widget*/,
 379                                    GdkDragContext */*drag_context*/,
 380                                    GtkSelectionData *data,
 381                                    guint info,
 382                                    guint /*time*/,
 383                                    gpointer user_data)
 384 {
 385     ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 386     std::string key;
 387     if ( info < mimeStrings.size() ) {
 388         key = mimeStrings[info];
 389     } else {
 390         g_warning("ERROR: unknown value (%d)", info);
 391     }
 392
 393     if ( !key.empty() ) {
 394         char* tmp = 0;
 395         int len = 0;
 396         int format = 0;
 397         item->def.getMIMEData(key, tmp, len, format);
 398         if ( tmp ) {
 399             GdkAtom dataAtom = gdk_atom_intern( key.c_str(), FALSE );
 400             gtk_selection_data_set( data, dataAtom, format, (guchar*)tmp, len );
 401             delete[] tmp;
 402         }
 403     }
 404 }
 405
 406 void ColorItem::_dropDataIn( GtkWidget */*widget*/,
 407                              GdkDragContext */*drag_context*/,
 408                              gint /*x*/, gint /*y*/,
 409                              GtkSelectionData */*data*/,
 410                              guint /*info*/,
 411                              guint /*event_time*/,
 412                              gpointer /*user_data*/)
 413 {
 414 }
 415
 416 void ColorItem::_colorDefChanged(void* data)
 417 {
 418     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 419     if ( item ) {
 420         item->_updatePreviews();
 421     }
 422 }
 423
 424 void ColorItem::_updatePreviews()
 425 {
 426     for ( std::vector<Gtk::Widget*>::iterator it =  _previews.begin(); it != _previews.end(); ++it ) {
 427         Gtk::Widget* widget = *it;
 428         if ( IS_EEK_PREVIEW(widget->gobj()) ) {
 429             EekPreview * preview = EEK_PREVIEW(widget->gobj());
 430
 431             _regenPreview(preview);
 432
 433             widget->queue_draw();
 434         }
 435     }
 436
 437     for ( std::vector<ColorItem*>::iterator it = _listeners.begin(); it != _listeners.end(); ++it ) {
 438         guint r = def.getR();
 439         guint g = def.getG();
 440         guint b = def.getB();
 441
 442         if ( (*it)->_linkIsTone ) {
 443             r = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 444             g = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 445             b = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 446         } else {
 447             r = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 448             g = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 449             b = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 450         }
 451
 452         (*it)->def.setRGB( r, g, b );
 453     }
 454
 455
 456 #if ENABLE_MAGIC_COLORS
 457     // Look for objects using this color
 458     {
 459         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 460         if ( desktop ) {
 461             SPDocument* document = sp_desktop_document( desktop );
 462             Inkscape::XML::Node *rroot =  document->getReprRoot();
 463             if ( rroot ) {
 464
 465                 // Find where this thing came from
 466                 Glib::ustring paletteName;
 467                 bool found = false;
 468                 int index = 0;
 469                 for ( std::vector<SwatchPage*>::iterator it2 = possible.begin(); it2 != possible.end() && !found; ++it2 ) {
 470                     SwatchPage* curr = *it2;
 471                     index = 0;
 472                     for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 473                         if ( this == *zz ) {
 474                             found = true;
 475                             paletteName = curr->_name;
 476                             break;
 477                         } else {
 478                             index++;
 479                         }
 480                     }
 481                 }
 482
 483                 if ( !paletteName.empty() ) {
 484                     gchar* str = g_strdup_printf("%d|", index);
 485                     paletteName.insert( 0, str );
 486                     g_free(str);
 487                     str = 0;
 488
 489                     if ( bruteForce( document, rroot, paletteName, def.getR(), def.getG(), def.getB() ) ) {
 490                         SPDocumentUndo::done( document , SP_VERB_DIALOG_SWATCHES,
 491                                           _("Change color definition"));
 492                     }
 493                 }
 494             }
 495         }
 496     }
 497 #endif // ENABLE_MAGIC_COLORS
 498
 499 }
 500
 501 void ColorItem::_regenPreview(EekPreview * preview)
 502 {
 503     if ( def.getType() != ege::PaintDef::RGB ) {
 504         using Inkscape::IO::Resource::get_path;
 505         using Inkscape::IO::Resource::ICONS;
 506         using Inkscape::IO::Resource::SYSTEM;
 507         GError *error = NULL;
 508         gsize bytesRead = 0;
 509         gsize bytesWritten = 0;
 510         gchar *localFilename = g_filename_from_utf8( get_path(SYSTEM, ICONS, "remove-color.png"),
 511                                                      -1,
 512                                                      &bytesRead,
 513                                                      &bytesWritten,
 514                                                      &error);
 515         GdkPixbuf* pixbuf = gdk_pixbuf_new_from_file(localFilename, &error);
 516         if (!pixbuf) {
 517             g_warning("Null pixbuf for %p [%s]", localFilename, localFilename );
 518         }
 519         g_free(localFilename);
 520
 521         eek_preview_set_pixbuf( preview, pixbuf );
 522     }
 523     else if ( !_pixData ){
 524         eek_preview_set_color( preview,
 525                                (def.getR() << 8) | def.getR(),
 526                                (def.getG() << 8) | def.getG(),
 527                                (def.getB() << 8) | def.getB() );
 528     } else {
 529         GdkPixbuf* pixbuf = gdk_pixbuf_new_from_data( _pixData, GDK_COLORSPACE_RGB, FALSE, 8,
 530                                                       _pixWidth, _pixHeight, _pixWidth * 3,
 531                                                       0, // add delete function
 532                                                       0 );
 533         eek_preview_set_pixbuf( preview, pixbuf );
 534     }
 535
 536     eek_preview_set_linked( preview, (LinkType)((_linkSrc ? PREVIEW_LINK_IN:0)
 537                                                 | (_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 538                                                 | (_isLive ? PREVIEW_LINK_OTHER:0)) );
 539 }
 540
 541 Gtk::Widget* ColorItem::getPreview(PreviewStyle style, ViewType view, ::PreviewSize size, guint ratio)
 542 {
 543     Gtk::Widget* widget = 0;
 544     if ( style == PREVIEW_STYLE_BLURB) {
 545         Gtk::Label *lbl = new Gtk::Label(def.descr);
 546         lbl->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
 547         widget = lbl;
 548     } else {
 549 //         Glib::ustring blank("          ");
 550 //         if ( size == Inkscape::ICON_SIZE_MENU || size == Inkscape::ICON_SIZE_DECORATION ) {
 551 //             blank = " ";
 552 //         }
 553
 554         GtkWidget* eekWidget = eek_preview_new();
 555         EekPreview * preview = EEK_PREVIEW(eekWidget);
 556         Gtk::Widget* newBlot = Glib::wrap(eekWidget);
 557
 558         _regenPreview(preview);
 559
 560         eek_preview_set_details( preview, (::PreviewStyle)style, (::ViewType)view, (::PreviewSize)size, ratio );
 561
 562         def.addCallback( _colorDefChanged, this );
 563
 564         GValue val = {0, {{0}, {0}}};
 565         g_value_init( &val, G_TYPE_BOOLEAN );
 566         g_value_set_boolean( &val, FALSE );
 567         g_object_set_property( G_OBJECT(preview), "focus-on-click", &val );
 568
 569 /*
 570         Gtk::Button *btn = new Gtk::Button(blank);
 571         Gdk::Color color;
 572         color.set_rgb((_r << 8)|_r, (_g << 8)|_g, (_b << 8)|_b);
 573         btn->modify_bg(Gtk::STATE_NORMAL, color);
 574         btn->modify_bg(Gtk::STATE_ACTIVE, color);
 575         btn->modify_bg(Gtk::STATE_PRELIGHT, color);
 576         btn->modify_bg(Gtk::STATE_SELECTED, color);
 577
 578         Gtk::Widget* newBlot = btn;
 579 */
 580
 581         tips.set_tip((*newBlot), def.descr);
 582
 583 /*
 584         newBlot->signal_clicked().connect( sigc::mem_fun(*this, &ColorItem::buttonClicked) );
 585
 586         sigc::signal<void> type_signal_something;
 587 */
 588
 589         g_signal_connect( G_OBJECT(newBlot->gobj()),
 590                           "clicked",
 591                           G_CALLBACK(handleClick),
 592                           this);
 593
 594         g_signal_connect( G_OBJECT(newBlot->gobj()),
 595                           "alt-clicked",
 596                           G_CALLBACK(handleSecondaryClick),
 597                           this);
 598
 599         g_signal_connect( G_OBJECT(newBlot->gobj()),
 600                           "button-press-event",
 601                           G_CALLBACK(colorItemHandleButtonPress),
 602                           this);
 603
 604         {
 605             std::vector<std::string> listing = def.getMIMETypes();
 606             int entryCount = listing.size();
 607             GtkTargetEntry* entries = new GtkTargetEntry[entryCount];
 608             GtkTargetEntry* curr = entries;
 609             for ( std::vector<std::string>::iterator it = listing.begin(); it != listing.end(); ++it ) {
 610                 curr->target = g_strdup(it->c_str());
 611                 curr->flags = 0;
 612                 if ( mimeToInt.find(*it) == mimeToInt.end() ){
 613                     // these next lines are order-dependent:
 614                     mimeToInt[*it] = mimeStrings.size();
 615                     mimeStrings.push_back(*it);
 616                 }
 617                 curr->info = mimeToInt[curr->target];
 618                 curr++;
 619             }
 620             gtk_drag_source_set( GTK_WIDGET(newBlot->gobj()),
 621                                  GDK_BUTTON1_MASK,
 622                                  entries, entryCount,
 623                                  GdkDragAction(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
 624             for ( int i = 0; i < entryCount; i++ ) {
 625                 g_free(entries[i].target);
 626             }
 627             delete[] entries;
 628         }
 629
 630         g_signal_connect( G_OBJECT(newBlot->gobj()),
 631                           "drag-data-get",
 632                           G_CALLBACK(ColorItem::_dragGetColorData),
 633                           this);
 634
 635         g_signal_connect( G_OBJECT(newBlot->gobj()),
 636                           "drag-begin",
 637                           G_CALLBACK(colorItemDragBegin),
 638                           this );
 639
 640         g_signal_connect( G_OBJECT(newBlot->gobj()),
 641                           "enter-notify-event",
 642                           G_CALLBACK(handleEnterNotify),
 643                           this);
 644
 645         g_signal_connect( G_OBJECT(newBlot->gobj()),
 646                           "leave-notify-event",
 647                           G_CALLBACK(handleLeaveNotify),
 648                           this);
 649
 650 //         g_signal_connect( G_OBJECT(newBlot->gobj()),
 651 //                           "drag-drop",
 652 //                           G_CALLBACK(dragDropColorData),
 653 //                           this);
 654
 655         if ( def.isEditable() )
 656         {
 657 //             gtk_drag_dest_set( GTK_WIDGET(newBlot->gobj()),
 658 //                                GTK_DEST_DEFAULT_ALL,
 659 //                                destColorTargets,
 660 //                                G_N_ELEMENTS(destColorTargets),
 661 //                                GdkDragAction(GDK_ACTION_COPY | GDK_ACTION_MOVE) );
 662
 663
 664 //             g_signal_connect( G_OBJECT(newBlot->gobj()),
 665 //                               "drag-data-received",
 666 //                               G_CALLBACK(_dropDataIn),
 667 //                               this );
 668         }
 669
 670         g_signal_connect( G_OBJECT(newBlot->gobj()),
 671                           "destroy",
 672                           G_CALLBACK(dieDieDie),
 673                           this);
 674
 675
 676         widget = newBlot;
 677     }
 678
 679     _previews.push_back( widget );
 680
 681     return widget;
 682 }
 683
 684 void ColorItem::buttonClicked(bool secondary)
 685 {
 686     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 687     if (desktop) {
 688         char const * attrName = secondary ? "stroke" : "fill";
 689
 690         SPCSSAttr *css = sp_repr_css_attr_new();
 691         Glib::ustring descr;
 692         switch (def.getType()) {
 693             case ege::PaintDef::CLEAR: {
 694                 // TODO actually make this clear
 695                 sp_repr_css_set_property( css, attrName, "none" );
 696                 descr = secondary? _("Remove stroke color") : _("Remove fill color");
 697                 break;
 698             }
 699             case ege::PaintDef::NONE: {
 700                 sp_repr_css_set_property( css, attrName, "none" );
 701                 descr = secondary? _("Set stroke color to none") : _("Set fill color to none");
 702                 break;
 703             }
 704             case ege::PaintDef::RGB: {
 705                 Glib::ustring colorspec;
 706                 if ( _grad ){
 707                     colorspec = "url(#";
 708                     colorspec += _grad->getId();
 709                     colorspec += ")";
 710                 } else {
 711                     gchar c[64];
 712                     guint32 rgba = (def.getR() << 24) | (def.getG() << 16) | (def.getB() << 8) | 0xff;
 713                     sp_svg_write_color(c, sizeof(c), rgba);
 714                     colorspec = c;
 715                 }
 716                 sp_repr_css_set_property( css, attrName, colorspec.c_str() );
 717                 descr = secondary? _("Set stroke color from swatch") : _("Set fill color from swatch");
 718                 break;
 719             }
 720         }
 721         sp_desktop_set_style(desktop, css);
 722         sp_repr_css_attr_unref(css);
 723
 724         DocumentUndo::done( sp_desktop_document(desktop), SP_VERB_DIALOG_SWATCHES, descr.c_str() );
 725     }
 726 }
 727
 728 void ColorItem::_wireMagicColors( SwatchPage *colorSet )
 729 {
 730     if ( colorSet )
 731     {
 732         for ( std::vector<ColorItem*>::iterator it = colorSet->_colors.begin(); it != colorSet->_colors.end(); ++it )
 733         {
 734             std::string::size_type pos = (*it)->def.descr.find("*{");
 735             if ( pos != std::string::npos )
 736             {
 737                 std::string subby = (*it)->def.descr.substr( pos + 2 );
 738                 std::string::size_type endPos = subby.find("}*");
 739                 if ( endPos != std::string::npos )
 740                 {
 741                     subby.erase( endPos );
 742                     //g_message("FOUND MAGIC at '%s'", (*it)->def.descr.c_str());
 743                     //g_message("               '%s'", subby.c_str());
 744
 745                     if ( subby.find('E') != std::string::npos )
 746                     {
 747                         (*it)->def.setEditable( true );
 748                     }
 749
 750                     if ( subby.find('L') != std::string::npos )
 751                     {
 752                         (*it)->_isLive = true;
 753                     }
 754
 755                     std::string part;
 756                     // Tint. index + 1 more val.
 757                     if ( getBlock( part, 'T', subby ) ) {
 758                         guint64 colorIndex = 0;
 759                         if ( popVal( colorIndex, part ) ) {
 760                             guint64 percent = 0;
 761                             if ( popVal( percent, part ) ) {
 762                                 (*it)->_linkTint( *(colorSet->_colors[colorIndex]), percent );
 763                             }
 764                         }
 765                     }
 766
 767                     // Shade/tone. index + 1 or 2 more val.
 768                     if ( getBlock( part, 'S', subby ) ) {
 769                         guint64 colorIndex = 0;
 770                         if ( popVal( colorIndex, part ) ) {
 771                             guint64 percent = 0;
 772                             if ( popVal( percent, part ) ) {
 773                                 guint64 grayLevel = 0;
 774                                 if ( !popVal( grayLevel, part ) ) {
 775                                     grayLevel = 0;
 776                                 }
 777                                 (*it)->_linkTone( *(colorSet->_colors[colorIndex]), percent, grayLevel );
 778                             }
 779                         }
 780                     }
 781
 782                 }
 783             }
 784         }
 785     }
 786 }
 787
 788
 789 void ColorItem::_linkTint( ColorItem& other, int percent )
 790 {
 791     if ( !_linkSrc )
 792     {
 793         other._listeners.push_back(this);
 794         _linkIsTone = false;
 795         _linkPercent = percent;
 796         if ( _linkPercent > 100 )
 797             _linkPercent = 100;
 798         if ( _linkPercent < 0 )
 799             _linkPercent = 0;
 800         _linkGray = 0;
 801         _linkSrc = &other;
 802
 803         ColorItem::_colorDefChanged(&other);
 804     }
 805 }
 806
 807 void ColorItem::_linkTone( ColorItem& other, int percent, int grayLevel )
 808 {
 809     if ( !_linkSrc )
 810     {
 811         other._listeners.push_back(this);
 812         _linkIsTone = true;
 813         _linkPercent = percent;
 814         if ( _linkPercent > 100 )
 815             _linkPercent = 100;
 816         if ( _linkPercent < 0 )
 817             _linkPercent = 0;
 818         _linkGray = grayLevel;
 819         _linkSrc = &other;
 820
 821         ColorItem::_colorDefChanged(&other);
 822     }
 823 }
 824
 825 } // namespace Dialogs
 826 } // namespace UI
 827 } // namespace Inkscape
 828
 829 /*
 830   Local Variables:
 831   mode:c++
 832   c-file-style:"stroustrup"
 833   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 834   indent-tabs-mode:nil
 835   fill-column:99
 836   End:
 837 */
 838 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :