src/dialogs/swatches.cpp

   1 /*
   2  * A simple panel for color swatches
   3  *
   4  * Authors:
   5  *   Jon A. Cruz
   6  *
   7  * Copyright (C) 2005 Jon A. Cruz
   8  *
   9  * Released under GNU GPL, read the file 'COPYING' for more information
  10  */
  11 #ifdef HAVE_CONFIG_H
  12 # include <config.h>
  13 #endif
  14
  15 #include <errno.h>
  16
  17 #include <gtk/gtkdialog.h> //for GTK_RESPONSE* types
  18 #include <gtk/gtkdnd.h>
  19
  20 #include <glibmm/i18n.h>
  21 #include <gdkmm/pixbuf.h>
  22 #include "inkscape.h"
  23 #include "document.h"
  24 #include "desktop-handles.h"
  25 #include "extension/db.h"
  26 #include "inkscape.h"
  27 #include "svg/svg-color.h"
  28 #include "desktop-style.h"
  29 #include "io/sys.h"
  30 #include "path-prefix.h"
  31 #include "swatches.h"
  32 #include "sp-item.h"
  33
  34 #include "eek-preview.h"
  35
  36 namespace Inkscape {
  37 namespace UI {
  38 namespace Dialogs {
  39
  40 SwatchesPanel* SwatchesPanel::instance = 0;
  41
  42
  43 ColorItem::ColorItem( unsigned int r, unsigned int g, unsigned int b, Glib::ustring& name ) :
  44     def( r, g, b, name ),
  45     _linkIsTone(false),
  46     _linkPercent(0),
  47     _linkGray(0),
  48     _linkSrc(0)
  49 {
  50 }
  51
  52 ColorItem::~ColorItem()
  53 {
  54 }
  55
  56 ColorItem::ColorItem(ColorItem const &other) :
  57     Inkscape::UI::Previewable()
  58 {
  59     if ( this != &other ) {
  60         *this = other;
  61     }
  62 }
  63
  64 ColorItem &ColorItem::operator=(ColorItem const &other)
  65 {
  66     if ( this != &other ) {
  67         def = other.def;
  68
  69         // TODO - correct linkage
  70         _linkSrc = other._linkSrc;
  71         g_message("Erk!");
  72     }
  73     return *this;
  74 }
  75
  76
  77 class JustForNow
  78 {
  79 public:
  80     JustForNow() : _prefWidth(0) {}
  81
  82     Glib::ustring _name;
  83     int _prefWidth;
  84     std::vector<ColorItem*> _colors;
  85 };
  86
  87 static std::vector<JustForNow*> possible;
  88
  89
  90
  91 typedef enum {
  92     APP_X_INKY_COLOR_ID = 0,
  93     APP_X_INKY_COLOR = 0,
  94     APP_X_COLOR,
  95     TEXT_DATA
  96 } colorFlavorType;
  97
  98 static const GtkTargetEntry sourceColorEntries[] = {
  99 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 100     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 101     {"application/x-color", 0, APP_X_COLOR},
 102     {"text/plain", 0, TEXT_DATA},
 103 };
 104
 105 static void dragGetColorData( GtkWidget *widget,
 106                               GdkDragContext *drag_context,
 107                               GtkSelectionData *data,
 108                               guint info,
 109                               guint time,
 110                               gpointer user_data)
 111 {
 112     static GdkAtom typeXColor = gdk_atom_intern("application/x-color", FALSE);
 113     static GdkAtom typeText = gdk_atom_intern("text/plain", FALSE);
 114
 115     ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 116     if ( info == TEXT_DATA ) {
 117         gchar* tmp = g_strdup_printf("#%02x%02x%02x", item->def.getR(), item->def.getG(), item->def.getB() );
 118
 119         gtk_selection_data_set( data,
 120                                 typeText,
 121                                 8, // format
 122                                 (guchar*)tmp,
 123                                 strlen((const char*)tmp) + 1);
 124         g_free(tmp);
 125         tmp = 0;
 126     } else if ( info == APP_X_INKY_COLOR ) {
 127         Glib::ustring paletteName;
 128
 129         // Find where this thing came from
 130         bool found = false;
 131         int index = 0;
 132         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end() && !found; ++it ) {
 133             JustForNow* curr = *it;
 134             index = 0;
 135             for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 136                 if ( item == *zz ) {
 137                     found = true;
 138                     paletteName = curr->_name;
 139                     break;
 140                 } else {
 141                     index++;
 142                 }
 143             }
 144         }
 145
 146 //         if ( found ) {
 147 //             g_message("Found the color at entry %d in palette '%s'", index, paletteName.c_str() );
 148 //         } else {
 149 //             g_message("Unable to find the color");
 150 //         }
 151         int itemCount = 4 + 1 + 1 + paletteName.length();
 152
 153         guint16* tmp = new guint16[itemCount]
 154 ;
 155         tmp[0] = (item->def.getR() << 8) | item->def.getR();
 156         tmp[1] = (item->def.getG() << 8) | item->def.getG();
 157         tmp[2] = (item->def.getB() << 8) | item->def.getB();
 158         tmp[3] = 0xffff;
 159
 160         tmp[4] = index;
 161         tmp[5] = paletteName.length();
 162         for ( unsigned int i = 0; i < paletteName.length(); i++ ) {
 163             tmp[6 + i] = paletteName[i];
 164         }
 165         gtk_selection_data_set( data,
 166                                 typeXColor,
 167                                 16, // format
 168                                 reinterpret_cast<const guchar*>(tmp),
 169                                 itemCount * 2);
 170         delete[] tmp;
 171     } else {
 172         guint16 tmp[4];
 173         tmp[0] = (item->def.getR() << 8) | item->def.getR();
 174         tmp[1] = (item->def.getG() << 8) | item->def.getG();
 175         tmp[2] = (item->def.getB() << 8) | item->def.getB();
 176         tmp[3] = 0xffff;
 177         gtk_selection_data_set( data,
 178                                 typeXColor,
 179                                 16, // format
 180                                 reinterpret_cast<const guchar*>(tmp),
 181                                 (3+1) * 2);
 182     }
 183 }
 184
 185 static void dragBegin( GtkWidget *widget, GdkDragContext* dc, gpointer data )
 186 {
 187     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 188     if ( item )
 189     {
 190         Glib::RefPtr<Gdk::Pixbuf> thumb = Gdk::Pixbuf::create( Gdk::COLORSPACE_RGB, false, 8, 32, 24 );
 191         guint32 fillWith = (0xff000000 & (item->def.getR() << 24))
 192                          | (0x00ff0000 & (item->def.getG() << 16))
 193                          | (0x0000ff00 & (item->def.getB() <<  8));
 194         thumb->fill( fillWith );
 195         gtk_drag_set_icon_pixbuf( dc, thumb->gobj(), 0, 0 );
 196     }
 197
 198 }
 199
 200 //"drag-drop"
 201 // gboolean dragDropColorData( GtkWidget *widget,
 202 //                             GdkDragContext *drag_context,
 203 //                             gint x,
 204 //                             gint y,
 205 //                             guint time,
 206 //                             gpointer user_data)
 207 // {
 208 // // TODO finish
 209
 210 //     return TRUE;
 211 // }
 212
 213 static void bouncy( GtkWidget* widget, gpointer callback_data ) {
 214     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 215     if ( item ) {
 216         item->buttonClicked(false);
 217     }
 218 }
 219
 220 static void bouncy2( GtkWidget* widget, gint arg1, gpointer callback_data ) {
 221     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 222     if ( item ) {
 223         item->buttonClicked(true);
 224     }
 225 }
 226
 227 static void dieDieDie( GtkObject *obj, gpointer user_data )
 228 {
 229     g_message("die die die %p  %p", obj, user_data );
 230 }
 231
 232 static const GtkTargetEntry destColorTargets[] = {
 233 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 234     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 235     {"application/x-color", 0, APP_X_COLOR},
 236 };
 237
 238 #include "color.h" // for SP_RGBA32_U_COMPOSE
 239
 240 void ColorItem::_dropDataIn( GtkWidget *widget,
 241                              GdkDragContext *drag_context,
 242                              gint x, gint y,
 243                              GtkSelectionData *data,
 244                              guint info,
 245                              guint event_time,
 246                              gpointer user_data)
 247 {
 248 //     g_message("    droppy droppy   %d", info);
 249      switch (info) {
 250          case APP_X_INKY_COLOR:
 251          {
 252              if ( data->length >= 8 ) {
 253                  // Careful about endian issues.
 254                  guint16* dataVals = (guint16*)data->data;
 255                  if ( user_data ) {
 256                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 257                      if ( item->def.isEditable() ) {
 258                          // Shove on in the new value
 259                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 260                      }
 261                  }
 262              }
 263              break;
 264          }
 265          case APP_X_COLOR:
 266          {
 267              if ( data->length == 8 ) {
 268                  // Careful about endian issues.
 269                  guint16* dataVals = (guint16*)data->data;
 270 //                  {
 271 //                      gchar c[64] = {0};
 272 //                      sp_svg_write_color( c, 64,
 273 //                                          SP_RGBA32_U_COMPOSE(
 274 //                                              0x0ff & (dataVals[0] >> 8),
 275 //                                              0x0ff & (dataVals[1] >> 8),
 276 //                                              0x0ff & (dataVals[2] >> 8),
 277 //                                              0xff // can't have transparency in the color itself
 278 //                                              //0x0ff & (data->data[3] >> 8),
 279 //                                              ));
 280 //                  }
 281                  if ( user_data ) {
 282                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 283                      if ( item->def.isEditable() ) {
 284                          // Shove on in the new value
 285                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 286                      }
 287                  }
 288              }
 289              break;
 290          }
 291          default:
 292              g_message("unknown drop type");
 293      }
 294
 295 }
 296
 297 static bool bruteForce( SPDocument* document, Inkscape::XML::Node* node, Glib::ustring const& match, int r, int g, int b )
 298 {
 299     bool changed = false;
 300
 301     if ( node ) {
 302         gchar const * val = node->attribute("HOTFill");
 303         if ( val  && (match == val) ) {
 304             SPObject *obj = document->getObjectByRepr( node );
 305
 306             gchar c[64] = {0};
 307             sp_svg_write_color( c, 64, SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 308             SPCSSAttr *css = sp_repr_css_attr_new();
 309             sp_repr_css_set_property( css, "fill", c );
 310
 311             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 312             ((SPItem*)obj)->updateRepr();
 313
 314             changed = true;
 315         }
 316
 317         val = node->attribute("HOTStroke");
 318         if ( val  && (match == val) ) {
 319             SPObject *obj = document->getObjectByRepr( node );
 320
 321             gchar c[64] = {0};
 322             sp_svg_write_color( c, 64, SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 323             SPCSSAttr *css = sp_repr_css_attr_new();
 324             sp_repr_css_set_property( css, "stroke", c );
 325
 326             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 327             ((SPItem*)obj)->updateRepr();
 328
 329             changed = true;
 330         }
 331
 332         Inkscape::XML::Node* first = node->firstChild();
 333         changed |= bruteForce( document, first, match, r, g, b );
 334
 335         changed |= bruteForce( document, node->next(), match, r, g, b );
 336     }
 337
 338     return changed;
 339 }
 340
 341 void ColorItem::_colorDefChanged(void* data)
 342 {
 343     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 344     if ( item ) {
 345         for ( std::vector<Gtk::Widget*>::iterator it =  item->_previews.begin(); it != item->_previews.end(); ++it ) {
 346             Gtk::Widget* widget = *it;
 347             if ( IS_EEK_PREVIEW(widget->gobj()) ) {
 348                 EekPreview * preview = EEK_PREVIEW(widget->gobj());
 349                 eek_preview_set_color( preview,
 350                                        (item->def.getR() << 8) | item->def.getR(),
 351                                        (item->def.getG() << 8) | item->def.getG(),
 352                                        (item->def.getB() << 8) | item->def.getB() );
 353
 354                 eek_preview_set_linked( preview, (LinkType)((item->_linkSrc ? PREVIEW_LINK_IN:0) | (item->_listeners.empty() ? 0:PREVIEW_LINK_OUT)) );
 355
 356                 widget->queue_draw();
 357             }
 358         }
 359
 360         for ( std::vector<ColorItem*>::iterator it = item->_listeners.begin(); it != item->_listeners.end(); ++it ) {
 361             guint r = item->def.getR();
 362             guint g = item->def.getG();
 363             guint b = item->def.getB();
 364
 365             if ( (*it)->_linkIsTone ) {
 366                 r = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 367                 g = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 368                 b = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 369             } else {
 370                 r = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 371                 g = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 372                 b = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 373             }
 374
 375             (*it)->def.setRGB( r, g, b );
 376         }
 377
 378
 379         // Look for objects using this color
 380         {
 381             SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 382             if ( desktop ) {
 383                 SPDocument* document = SP_DT_DOCUMENT( desktop );
 384                 Inkscape::XML::Node *rroot =  sp_document_repr_root( document );
 385                 if ( rroot ) {
 386
 387                     // Find where this thing came from
 388                     Glib::ustring paletteName;
 389                     bool found = false;
 390                     int index = 0;
 391                     for ( std::vector<JustForNow*>::iterator it2 = possible.begin(); it2 != possible.end() && !found; ++it2 ) {
 392                         JustForNow* curr = *it2;
 393                         index = 0;
 394                         for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 395                             if ( item == *zz ) {
 396                                 found = true;
 397                                 paletteName = curr->_name;
 398                                 break;
 399                             } else {
 400                                 index++;
 401                             }
 402                         }
 403                     }
 404
 405                     if ( !paletteName.empty() ) {
 406                         gchar* str = g_strdup_printf("%d|", index);
 407                         paletteName.insert( 0, str );
 408                         g_free(str);
 409                         str = 0;
 410
 411                         if ( bruteForce( document, rroot, paletteName, item->def.getR(), item->def.getG(), item->def.getB() ) ) {
 412                             sp_document_done( document );
 413                         }
 414                     }
 415                 }
 416             }
 417         }
 418     }
 419 }
 420
 421
 422 Gtk::Widget* ColorItem::getPreview(PreviewStyle style, ViewType view, Gtk::BuiltinIconSize size)
 423 {
 424     Gtk::Widget* widget = 0;
 425     if ( style == PREVIEW_STYLE_BLURB ) {
 426         Gtk::Label *lbl = new Gtk::Label(def.descr);
 427         lbl->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
 428         widget = lbl;
 429     } else {
 430         Glib::ustring blank("          ");
 431         if ( size == Gtk::ICON_SIZE_MENU ) {
 432             blank = " ";
 433         }
 434
 435         GtkWidget* eekWidget = eek_preview_new();
 436         EekPreview * preview = EEK_PREVIEW(eekWidget);
 437         Gtk::Widget* newBlot = Glib::wrap(eekWidget);
 438
 439         eek_preview_set_color( preview, (def.getR() << 8) | def.getR(), (def.getG() << 8) | def.getG(), (def.getB() << 8) | def.getB());
 440
 441         eek_preview_set_details( preview, (::PreviewStyle)style, (::ViewType)view, (::GtkIconSize)size );
 442         eek_preview_set_linked( preview, (LinkType)((_linkSrc ? PREVIEW_LINK_IN:0) | (_listeners.empty() ? 0:PREVIEW_LINK_OUT)) );
 443
 444         def.addCallback( _colorDefChanged, this );
 445
 446         GValue val = {0, {{0}, {0}}};
 447         g_value_init( &val, G_TYPE_BOOLEAN );
 448         g_value_set_boolean( &val, FALSE );
 449         g_object_set_property( G_OBJECT(preview), "focus-on-click", &val );
 450
 451 /*
 452         Gtk::Button *btn = new Gtk::Button(blank);
 453         Gdk::Color color;
 454         color.set_rgb((_r << 8)|_r, (_g << 8)|_g, (_b << 8)|_b);
 455         btn->modify_bg(Gtk::STATE_NORMAL, color);
 456         btn->modify_bg(Gtk::STATE_ACTIVE, color);
 457         btn->modify_bg(Gtk::STATE_PRELIGHT, color);
 458         btn->modify_bg(Gtk::STATE_SELECTED, color);
 459
 460         Gtk::Widget* newBlot = btn;
 461 */
 462
 463         tips.set_tip((*newBlot), def.descr);
 464
 465 /*
 466         newBlot->signal_clicked().connect( sigc::mem_fun(*this, &ColorItem::buttonClicked) );
 467
 468         sigc::signal<void> type_signal_something;
 469 */
 470         g_signal_connect( G_OBJECT(newBlot->gobj()),
 471                           "clicked",
 472                           G_CALLBACK(bouncy),
 473                           this);
 474
 475         g_signal_connect( G_OBJECT(newBlot->gobj()),
 476                           "alt-clicked",
 477                           G_CALLBACK(bouncy2),
 478                           this);
 479
 480         gtk_drag_source_set( GTK_WIDGET(newBlot->gobj()),
 481                              GDK_BUTTON1_MASK,
 482                              sourceColorEntries,
 483                              G_N_ELEMENTS(sourceColorEntries),
 484                              GdkDragAction(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
 485
 486         g_signal_connect( G_OBJECT(newBlot->gobj()),
 487                           "drag-data-get",
 488                           G_CALLBACK(dragGetColorData),
 489                           this);
 490
 491         g_signal_connect( G_OBJECT(newBlot->gobj()),
 492                           "drag-begin",
 493                           G_CALLBACK(dragBegin),
 494                           this );
 495
 496 //         g_signal_connect( G_OBJECT(newBlot->gobj()),
 497 //                           "drag-drop",
 498 //                           G_CALLBACK(dragDropColorData),
 499 //                           this);
 500
 501         if ( def.isEditable() )
 502         {
 503             gtk_drag_dest_set( GTK_WIDGET(newBlot->gobj()),
 504                                GTK_DEST_DEFAULT_ALL,
 505                                destColorTargets,
 506                                G_N_ELEMENTS(destColorTargets),
 507                                GdkDragAction(GDK_ACTION_COPY | GDK_ACTION_MOVE) );
 508
 509
 510             g_signal_connect( G_OBJECT(newBlot->gobj()),
 511                               "drag-data-received",
 512                               G_CALLBACK(_dropDataIn),
 513                               this );
 514         }
 515
 516         g_signal_connect( G_OBJECT(newBlot->gobj()),
 517                           "destroy",
 518                           G_CALLBACK(dieDieDie),
 519                           this);
 520
 521
 522         widget = newBlot;
 523     }
 524
 525     _previews.push_back( widget );
 526
 527     return widget;
 528 }
 529
 530 void ColorItem::buttonClicked(bool secondary)
 531 {
 532     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 533     if (desktop) {
 534         char const * attrName = secondary ? "stroke" : "fill";
 535         guint32 rgba = (def.getR() << 24) | (def.getG() << 16) | (def.getB() << 8) | 0xff;
 536         gchar c[64];
 537         sp_svg_write_color(c, 64, rgba);
 538
 539         SPCSSAttr *css = sp_repr_css_attr_new();
 540         sp_repr_css_set_property( css, attrName, c );
 541         sp_desktop_set_style(desktop, css);
 542
 543         sp_repr_css_attr_unref(css);
 544         sp_document_done (SP_DT_DOCUMENT (desktop));
 545     }
 546 }
 547
 548
 549
 550
 551 static char* trim( char* str ) {
 552     char* ret = str;
 553     while ( *str && (*str == ' ' || *str == '\t') ) {
 554         str++;
 555     }
 556     ret = str;
 557     while ( *str ) {
 558         str++;
 559     }
 560     str--;
 561     while ( str > ret && ( *str == ' ' || *str == '\t' ) || *str == '\r' || *str == '\n' ) {
 562         *str-- = 0;
 563     }
 564     return ret;
 565 }
 566
 567 void skipWhitespace( char*& str ) {
 568     while ( *str == ' ' || *str == '\t' ) {
 569         str++;
 570     }
 571 }
 572
 573 bool parseNum( char*& str, int& val ) {
 574     val = 0;
 575     while ( '0' <= *str && *str <= '9' ) {
 576         val = val * 10 + (*str - '0');
 577         str++;
 578     }
 579     bool retval = !(*str == 0 || *str == ' ' || *str == '\t' || *str == '\r' || *str == '\n');
 580     return retval;
 581 }
 582
 583
 584 static bool getBlock( std::string& dst, guchar ch, std::string const str )
 585 {
 586     bool good = false;
 587     size_t pos = str.find(ch);
 588     if ( pos != std::string::npos )
 589     {
 590         size_t pos2 = str.find( '(', pos );
 591         if ( pos2 != std::string::npos ) {
 592             size_t endPos = str.find( ')', pos2 );
 593             if ( endPos != std::string::npos ) {
 594                 dst = str.substr( pos2 + 1, (endPos - pos2 - 1) );
 595                 good = true;
 596             }
 597         }
 598     }
 599     return good;
 600 }
 601
 602 static bool popVal( guint64& numVal, std::string& str )
 603 {
 604     bool good = false;
 605     size_t endPos = str.find(',');
 606     if ( endPos == std::string::npos ) {
 607         endPos = str.length();
 608     }
 609
 610     if ( endPos != std::string::npos && endPos > 0 ) {
 611         std::string xxx = str.substr( 0, endPos );
 612         const gchar* ptr = xxx.c_str();
 613         gchar* endPtr = 0;
 614         numVal = g_ascii_strtoull( ptr, &endPtr, 10 );
 615         if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 616             // overflow
 617         } else if ( (numVal == 0) && (endPtr == ptr) ) {
 618             // failed conversion
 619         } else {
 620             good = true;
 621             str.erase( 0, endPos + 1 );
 622         }
 623     }
 624
 625     return good;
 626 }
 627
 628 void ColorItem::_wireMagicColors( void* p )
 629 {
 630     JustForNow* onceMore = reinterpret_cast<JustForNow*>(p);
 631     if ( onceMore )
 632     {
 633         for ( std::vector<ColorItem*>::iterator it = onceMore->_colors.begin(); it != onceMore->_colors.end(); ++it )
 634         {
 635             size_t pos = (*it)->def.descr.find("*{");
 636             if ( pos != std::string::npos )
 637             {
 638                 std::string subby = (*it)->def.descr.substr( pos + 2 );
 639                 size_t endPos = subby.find("}*");
 640                 if ( endPos != std::string::npos )
 641                 {
 642                     subby.erase( endPos );
 643                     //g_message("FOUND MAGIC at '%s'", (*it)->def.descr.c_str());
 644                     //g_message("               '%s'", subby.c_str());
 645
 646                     if ( subby.find('E') != std::string::npos )
 647                     {
 648                         //g_message("                   HOT!");
 649                         (*it)->def.setEditable( true );
 650                     }
 651
 652                     std::string part;
 653                     // Tint. index + 1 more val.
 654                     if ( getBlock( part, 'T', subby ) ) {
 655                         guint64 colorIndex = 0;
 656                         if ( popVal( colorIndex, part ) ) {
 657                             guint64 percent = 0;
 658                             if ( popVal( percent, part ) ) {
 659                                 (*it)->_linkTint( *(onceMore->_colors[colorIndex]), percent );
 660                             }
 661                         }
 662                     }
 663
 664                     // Shade/tone. index + 1 or 2 more val.
 665                     if ( getBlock( part, 'S', subby ) ) {
 666                         guint64 colorIndex = 0;
 667                         if ( popVal( colorIndex, part ) ) {
 668                             guint64 percent = 0;
 669                             if ( popVal( percent, part ) ) {
 670                                 guint64 grayLevel = 0;
 671                                 if ( !popVal( grayLevel, part ) ) {
 672                                     grayLevel = 0;
 673                                 }
 674                                 (*it)->_linkTone( *(onceMore->_colors[colorIndex]), percent, grayLevel );
 675                             }
 676                         }
 677                     }
 678
 679                 }
 680             }
 681         }
 682     }
 683 }
 684
 685
 686 void ColorItem::_linkTint( ColorItem& other, int percent )
 687 {
 688     if ( !_linkSrc )
 689     {
 690         other._listeners.push_back(this);
 691         _linkIsTone = false;
 692         _linkPercent = percent;
 693         if ( _linkPercent > 100 )
 694             _linkPercent = 100;
 695         if ( _linkPercent < 0 )
 696             _linkPercent = 0;
 697         _linkGray = 0;
 698         _linkSrc = &other;
 699
 700         ColorItem::_colorDefChanged(&other);
 701     }
 702 }
 703
 704 void ColorItem::_linkTone( ColorItem& other, int percent, int grayLevel )
 705 {
 706     if ( !_linkSrc )
 707     {
 708         other._listeners.push_back(this);
 709         _linkIsTone = true;
 710         _linkPercent = percent;
 711         if ( _linkPercent > 100 )
 712             _linkPercent = 100;
 713         if ( _linkPercent < 0 )
 714             _linkPercent = 0;
 715         _linkGray = grayLevel;
 716         _linkSrc = &other;
 717
 718         ColorItem::_colorDefChanged(&other);
 719     }
 720 }
 721
 722
 723 void _loadPaletteFile( gchar const *filename )
 724 {
 725     char block[1024];
 726     FILE *f = Inkscape::IO::fopen_utf8name( filename, "r" );
 727     if ( f ) {
 728         char* result = fgets( block, sizeof(block), f );
 729         if ( result ) {
 730             if ( strncmp( "GIMP Palette", block, 12 ) == 0 ) {
 731                 bool inHeader = true;
 732                 bool hasErr = false;
 733
 734                 JustForNow *onceMore = new JustForNow();
 735
 736                 do {
 737                     result = fgets( block, sizeof(block), f );
 738                     block[sizeof(block) - 1] = 0;
 739                     if ( result ) {
 740                         if ( block[0] == '#' ) {
 741                             // ignore comment
 742                         } else {
 743                             char *ptr = block;
 744                             // very simple check for header versus entry
 745                             while ( *ptr == ' ' || *ptr == '\t' ) {
 746                                 ptr++;
 747                             }
 748                             if ( *ptr == 0 ) {
 749                                 // blank line. skip it.
 750                             } else if ( '0' <= *ptr && *ptr <= '9' ) {
 751                                 // should be an entry link
 752                                 inHeader = false;
 753                                 ptr = block;
 754                                 Glib::ustring name("");
 755                                 int r = 0;
 756                                 int g = 0;
 757                                 int b = 0;
 758                                 skipWhitespace(ptr);
 759                                 if ( *ptr ) {
 760                                     hasErr = parseNum(ptr, r);
 761                                     if ( !hasErr ) {
 762                                         skipWhitespace(ptr);
 763                                         hasErr = parseNum(ptr, g);
 764                                     }
 765                                     if ( !hasErr ) {
 766                                         skipWhitespace(ptr);
 767                                         hasErr = parseNum(ptr, b);
 768                                     }
 769                                     if ( !hasErr && *ptr ) {
 770                                         char* n = trim(ptr);
 771                                         if (n != NULL) {
 772                                             name = n;
 773                                         }
 774                                     }
 775                                     if ( !hasErr ) {
 776                                         // Add the entry now
 777                                         Glib::ustring nameStr(name);
 778                                         ColorItem* item = new ColorItem( r, g, b, nameStr );
 779                                         onceMore->_colors.push_back(item);
 780                                     }
 781                                 } else {
 782                                     hasErr = true;
 783                                 }
 784                             } else {
 785                                 if ( !inHeader ) {
 786                                     // Hmmm... probably bad. Not quite the format we want?
 787                                     hasErr = true;
 788                                 } else {
 789                                     char* sep = strchr(result, ':');
 790                                     if ( sep ) {
 791                                         *sep = 0;
 792                                         char* val = trim(sep + 1);
 793                                         char* name = trim(result);
 794                                         if ( *name ) {
 795                                             if ( strcmp( "Name", name ) == 0 )
 796                                             {
 797                                                 onceMore->_name = val;
 798                                             }
 799                                             else if ( strcmp( "Columns", name ) == 0 )
 800                                             {
 801                                                 gchar* endPtr = 0;
 802                                                 guint64 numVal = g_ascii_strtoull( val, &endPtr, 10 );
 803                                                 if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 804                                                     // overflow
 805                                                 } else if ( (numVal == 0) && (endPtr == val) ) {
 806                                                     // failed conversion
 807                                                 } else {
 808                                                     onceMore->_prefWidth = numVal;
 809                                                 }
 810                                             }
 811                                         } else {
 812                                             // error
 813                                             hasErr = true;
 814                                         }
 815                                     } else {
 816                                         // error
 817                                         hasErr = true;
 818                                     }
 819                                 }
 820                             }
 821                         }
 822                     }
 823                 } while ( result && !hasErr );
 824                 if ( !hasErr ) {
 825                     possible.push_back(onceMore);
 826                     ColorItem::_wireMagicColors( onceMore );
 827                 } else {
 828                     delete onceMore;
 829                 }
 830             }
 831         }
 832
 833         fclose(f);
 834     }
 835 }
 836
 837 static void loadEmUp()
 838 {
 839     static bool beenHere = false;
 840     if ( !beenHere ) {
 841         beenHere = true;
 842
 843         std::list<gchar *> sources;
 844         sources.push_back( profile_path("palettes") );
 845         sources.push_back( g_strdup(INKSCAPE_PALETTESDIR) );
 846
 847         // Use this loop to iterate through a list of possible document locations.
 848         while (!sources.empty()) {
 849             gchar *dirname = sources.front();
 850
 851             if ( Inkscape::IO::file_test( dirname, (GFileTest)(G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR) ) ) {
 852                 GError *err = 0;
 853                 GDir *directory = g_dir_open(dirname, 0, &err);
 854                 if (!directory) {
 855                     gchar *safeDir = Inkscape::IO::sanitizeString(dirname);
 856                     g_warning(_("Palettes directory (%s) is unavailable."), safeDir);
 857                     g_free(safeDir);
 858                 } else {
 859                     gchar *filename = 0;
 860                     while ((filename = (gchar *)g_dir_read_name(directory)) != NULL) {
 861                         gchar* lower = g_ascii_strdown( filename, -1 );
 862                         if ( g_str_has_suffix(lower, ".gpl") ) {
 863                             gchar* full = g_build_filename(dirname, filename, NULL);
 864                             if ( !Inkscape::IO::file_test( full, (GFileTest)(G_FILE_TEST_IS_DIR ) ) ) {
 865                                 _loadPaletteFile(full);
 866                             }
 867                             g_free(full);
 868                         }
 869                         g_free(lower);
 870                     }
 871                     g_dir_close(directory);
 872                 }
 873             }
 874
 875             // toss the dirname
 876             g_free(dirname);
 877             sources.pop_front();
 878         }
 879     }
 880 }
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890 SwatchesPanel& SwatchesPanel::getInstance()
 891 {
 892     if ( !instance ) {
 893         instance = new SwatchesPanel();
 894     }
 895
 896     return *instance;
 897 }
 898
 899
 900
 901 /**
 902  * Constructor
 903  */
 904 SwatchesPanel::SwatchesPanel() :
 905     Inkscape::UI::Widget::Panel ("dialogs.swatches"),
 906     _holder(0)
 907 {
 908     _holder = new PreviewHolder();
 909     loadEmUp();
 910
 911     if ( !possible.empty() ) {
 912         JustForNow* first = possible.front();
 913         if ( first->_prefWidth > 0 ) {
 914             _holder->setColumnPref( first->_prefWidth );
 915         }
 916         _holder->freezeUpdates();
 917         for ( std::vector<ColorItem*>::iterator it = first->_colors.begin(); it != first->_colors.end(); it++ ) {
 918             _holder->addPreview(*it);
 919         }
 920         _holder->thawUpdates();
 921
 922         Gtk::RadioMenuItem::Group groupOne;
 923         int i = 0;
 924         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end(); it++ ) {
 925             JustForNow* curr = *it;
 926             Gtk::RadioMenuItem* single = manage(new Gtk::RadioMenuItem(groupOne, curr->_name));
 927             _regItem( single, 3, i );
 928             i++;
 929         }
 930
 931     }
 932
 933
 934     _getContents()->pack_start(*_holder, Gtk::PACK_EXPAND_WIDGET);
 935     _setTargetFillable(_holder);
 936
 937     show_all_children();
 938
 939     restorePanelPrefs();
 940 }
 941
 942 SwatchesPanel::~SwatchesPanel()
 943 {
 944 }
 945
 946 void SwatchesPanel::setOrientation( Gtk::AnchorType how )
 947 {
 948     // Must call the parent class or bad things might happen
 949     Inkscape::UI::Widget::Panel::setOrientation( how );
 950
 951     if ( _holder )
 952     {
 953         _holder->setOrientation( Gtk::ANCHOR_SOUTH );
 954     }
 955 }
 956
 957 void SwatchesPanel::_handleAction( int setId, int itemId )
 958 {
 959     switch( setId ) {
 960         case 3:
 961         {
 962             if ( itemId >= 0 && itemId < static_cast<int>(possible.size()) ) {
 963                 _holder->clear();
 964                 JustForNow* curr = possible[itemId];
 965                 if ( curr->_prefWidth > 0 ) {
 966                     _holder->setColumnPref( curr->_prefWidth );
 967                 }
 968                 _holder->freezeUpdates();
 969                 for ( std::vector<ColorItem*>::iterator it = curr->_colors.begin(); it != curr->_colors.end(); it++ ) {
 970                     _holder->addPreview(*it);
 971                 }
 972                 _holder->thawUpdates();
 973             }
 974         }
 975         break;
 976     }
 977 }
 978
 979 } //namespace Dialogs
 980 } //namespace UI
 981 } //namespace Inkscape
 982
 983
 984 /*
 985   Local Variables:
 986   mode:c++
 987   c-file-style:"stroustrup"
 988   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 989   indent-tabs-mode:nil
 990   fill-column:99
 991   End:
 992 */
 993 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :