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     _isLive(false),
  46     _linkIsTone(false),
  47     _linkPercent(0),
  48     _linkGray(0),
  49     _linkSrc(0)
  50 {
  51 }
  52
  53 ColorItem::~ColorItem()
  54 {
  55 }
  56
  57 ColorItem::ColorItem(ColorItem const &other) :
  58     Inkscape::UI::Previewable()
  59 {
  60     if ( this != &other ) {
  61         *this = other;
  62     }
  63 }
  64
  65 ColorItem &ColorItem::operator=(ColorItem const &other)
  66 {
  67     if ( this != &other ) {
  68         def = other.def;
  69
  70         // TODO - correct linkage
  71         _linkSrc = other._linkSrc;
  72         g_message("Erk!");
  73     }
  74     return *this;
  75 }
  76
  77
  78 class JustForNow
  79 {
  80 public:
  81     JustForNow() : _prefWidth(0) {}
  82
  83     Glib::ustring _name;
  84     int _prefWidth;
  85     std::vector<ColorItem*> _colors;
  86 };
  87
  88 static std::vector<JustForNow*> possible;
  89
  90
  91
  92 typedef enum {
  93     APP_X_INKY_COLOR_ID = 0,
  94     APP_X_INKY_COLOR = 0,
  95     APP_X_COLOR,
  96     TEXT_DATA
  97 } colorFlavorType;
  98
  99 static const GtkTargetEntry sourceColorEntries[] = {
 100 #if ENABLE_LCMS
 101 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 102     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 103 #endif // ENABLE_LCMS
 104     {"application/x-color", 0, APP_X_COLOR},
 105     {"text/plain", 0, TEXT_DATA},
 106 };
 107
 108 void ColorItem::_dragGetColorData( GtkWidget *widget,
 109                                    GdkDragContext *drag_context,
 110                                    GtkSelectionData *data,
 111                                    guint info,
 112                                    guint time,
 113                                    gpointer user_data)
 114 {
 115     static GdkAtom typeXColor = gdk_atom_intern("application/x-color", FALSE);
 116     static GdkAtom typeText = gdk_atom_intern("text/plain", FALSE);
 117
 118     ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 119     if ( info == TEXT_DATA ) {
 120         gchar* tmp = g_strdup_printf("#%02x%02x%02x", item->def.getR(), item->def.getG(), item->def.getB() );
 121
 122         gtk_selection_data_set( data,
 123                                 typeText,
 124                                 8, // format
 125                                 (guchar*)tmp,
 126                                 strlen((const char*)tmp) + 1);
 127         g_free(tmp);
 128         tmp = 0;
 129     } else if ( info == APP_X_INKY_COLOR ) {
 130         Glib::ustring paletteName;
 131
 132         // Find where this thing came from
 133         bool found = false;
 134         int index = 0;
 135         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end() && !found; ++it ) {
 136             JustForNow* curr = *it;
 137             index = 0;
 138             for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 139                 if ( item == *zz ) {
 140                     found = true;
 141                     paletteName = curr->_name;
 142                     break;
 143                 } else {
 144                     index++;
 145                 }
 146             }
 147         }
 148
 149 //         if ( found ) {
 150 //             g_message("Found the color at entry %d in palette '%s'", index, paletteName.c_str() );
 151 //         } else {
 152 //             g_message("Unable to find the color");
 153 //         }
 154         int itemCount = 4 + 2 + 1 + paletteName.length();
 155
 156         guint16* tmp = new guint16[itemCount];
 157         tmp[0] = (item->def.getR() << 8) | item->def.getR();
 158         tmp[1] = (item->def.getG() << 8) | item->def.getG();
 159         tmp[2] = (item->def.getB() << 8) | item->def.getB();
 160         tmp[3] = 0xffff;
 161         tmp[4] = (item->_isLive || !item->_listeners.empty() || (item->_linkSrc != 0) ) ? 1 : 0;
 162
 163         tmp[5] = index;
 164         tmp[6] = paletteName.length();
 165         for ( unsigned int i = 0; i < paletteName.length(); i++ ) {
 166             tmp[7 + i] = paletteName[i];
 167         }
 168         gtk_selection_data_set( data,
 169                                 typeXColor,
 170                                 16, // format
 171                                 reinterpret_cast<const guchar*>(tmp),
 172                                 itemCount * 2);
 173         delete[] tmp;
 174     } else {
 175         guint16 tmp[4];
 176         tmp[0] = (item->def.getR() << 8) | item->def.getR();
 177         tmp[1] = (item->def.getG() << 8) | item->def.getG();
 178         tmp[2] = (item->def.getB() << 8) | item->def.getB();
 179         tmp[3] = 0xffff;
 180         gtk_selection_data_set( data,
 181                                 typeXColor,
 182                                 16, // format
 183                                 reinterpret_cast<const guchar*>(tmp),
 184                                 (3+1) * 2);
 185     }
 186 }
 187
 188 static void dragBegin( GtkWidget *widget, GdkDragContext* dc, gpointer data )
 189 {
 190     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 191     if ( item )
 192     {
 193         Glib::RefPtr<Gdk::Pixbuf> thumb = Gdk::Pixbuf::create( Gdk::COLORSPACE_RGB, false, 8, 32, 24 );
 194         guint32 fillWith = (0xff000000 & (item->def.getR() << 24))
 195                          | (0x00ff0000 & (item->def.getG() << 16))
 196                          | (0x0000ff00 & (item->def.getB() <<  8));
 197         thumb->fill( fillWith );
 198         gtk_drag_set_icon_pixbuf( dc, thumb->gobj(), 0, 0 );
 199     }
 200
 201 }
 202
 203 //"drag-drop"
 204 // gboolean dragDropColorData( GtkWidget *widget,
 205 //                             GdkDragContext *drag_context,
 206 //                             gint x,
 207 //                             gint y,
 208 //                             guint time,
 209 //                             gpointer user_data)
 210 // {
 211 // // TODO finish
 212
 213 //     return TRUE;
 214 // }
 215
 216 static void bouncy( GtkWidget* widget, gpointer callback_data ) {
 217     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 218     if ( item ) {
 219         item->buttonClicked(false);
 220     }
 221 }
 222
 223 static void bouncy2( GtkWidget* widget, gint arg1, gpointer callback_data ) {
 224     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 225     if ( item ) {
 226         item->buttonClicked(true);
 227     }
 228 }
 229
 230 static void dieDieDie( GtkObject *obj, gpointer user_data )
 231 {
 232     g_message("die die die %p  %p", obj, user_data );
 233 }
 234
 235 static const GtkTargetEntry destColorTargets[] = {
 236 #if ENABLE_LCMS
 237 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 238     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 239 #endif // ENABLE_LCMS
 240     {"application/x-color", 0, APP_X_COLOR},
 241 };
 242
 243 #include "color.h" // for SP_RGBA32_U_COMPOSE
 244
 245 void ColorItem::_dropDataIn( GtkWidget *widget,
 246                              GdkDragContext *drag_context,
 247                              gint x, gint y,
 248                              GtkSelectionData *data,
 249                              guint info,
 250                              guint event_time,
 251                              gpointer user_data)
 252 {
 253 //     g_message("    droppy droppy   %d", info);
 254      switch (info) {
 255          case APP_X_INKY_COLOR:
 256          {
 257              if ( data->length >= 8 ) {
 258                  // Careful about endian issues.
 259                  guint16* dataVals = (guint16*)data->data;
 260                  if ( user_data ) {
 261                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 262                      if ( item->def.isEditable() ) {
 263                          // Shove on in the new value
 264                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 265                      }
 266                  }
 267              }
 268              break;
 269          }
 270          case APP_X_COLOR:
 271          {
 272              if ( data->length == 8 ) {
 273                  // Careful about endian issues.
 274                  guint16* dataVals = (guint16*)data->data;
 275 //                  {
 276 //                      gchar c[64] = {0};
 277 //                      sp_svg_write_color( c, 64,
 278 //                                          SP_RGBA32_U_COMPOSE(
 279 //                                              0x0ff & (dataVals[0] >> 8),
 280 //                                              0x0ff & (dataVals[1] >> 8),
 281 //                                              0x0ff & (dataVals[2] >> 8),
 282 //                                              0xff // can't have transparency in the color itself
 283 //                                              //0x0ff & (data->data[3] >> 8),
 284 //                                              ));
 285 //                  }
 286                  if ( user_data ) {
 287                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 288                      if ( item->def.isEditable() ) {
 289                          // Shove on in the new value
 290                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 291                      }
 292                  }
 293              }
 294              break;
 295          }
 296          default:
 297              g_message("unknown drop type");
 298      }
 299
 300 }
 301
 302 static bool bruteForce( SPDocument* document, Inkscape::XML::Node* node, Glib::ustring const& match, int r, int g, int b )
 303 {
 304     bool changed = false;
 305
 306     if ( node ) {
 307         gchar const * val = node->attribute("inkscape:x-fill-tag");
 308         if ( val  && (match == val) ) {
 309             SPObject *obj = document->getObjectByRepr( node );
 310
 311             gchar c[64] = {0};
 312             sp_svg_write_color( c, 64, SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 313             SPCSSAttr *css = sp_repr_css_attr_new();
 314             sp_repr_css_set_property( css, "fill", c );
 315
 316             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 317             ((SPItem*)obj)->updateRepr();
 318
 319             changed = true;
 320         }
 321
 322         val = node->attribute("inkscape:x-stroke-tag");
 323         if ( val  && (match == val) ) {
 324             SPObject *obj = document->getObjectByRepr( node );
 325
 326             gchar c[64] = {0};
 327             sp_svg_write_color( c, 64, SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 328             SPCSSAttr *css = sp_repr_css_attr_new();
 329             sp_repr_css_set_property( css, "stroke", c );
 330
 331             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 332             ((SPItem*)obj)->updateRepr();
 333
 334             changed = true;
 335         }
 336
 337         Inkscape::XML::Node* first = node->firstChild();
 338         changed |= bruteForce( document, first, match, r, g, b );
 339
 340         changed |= bruteForce( document, node->next(), match, r, g, b );
 341     }
 342
 343     return changed;
 344 }
 345
 346 void ColorItem::_colorDefChanged(void* data)
 347 {
 348     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 349     if ( item ) {
 350         for ( std::vector<Gtk::Widget*>::iterator it =  item->_previews.begin(); it != item->_previews.end(); ++it ) {
 351             Gtk::Widget* widget = *it;
 352             if ( IS_EEK_PREVIEW(widget->gobj()) ) {
 353                 EekPreview * preview = EEK_PREVIEW(widget->gobj());
 354                 eek_preview_set_color( preview,
 355                                        (item->def.getR() << 8) | item->def.getR(),
 356                                        (item->def.getG() << 8) | item->def.getG(),
 357                                        (item->def.getB() << 8) | item->def.getB() );
 358
 359                 eek_preview_set_linked( preview, (LinkType)((item->_linkSrc ? PREVIEW_LINK_IN:0)
 360                                                             | (item->_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 361                                                             | (item->_isLive ? PREVIEW_LINK_OTHER:0)) );
 362
 363                 widget->queue_draw();
 364             }
 365         }
 366
 367         for ( std::vector<ColorItem*>::iterator it = item->_listeners.begin(); it != item->_listeners.end(); ++it ) {
 368             guint r = item->def.getR();
 369             guint g = item->def.getG();
 370             guint b = item->def.getB();
 371
 372             if ( (*it)->_linkIsTone ) {
 373                 r = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 374                 g = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 375                 b = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 376             } else {
 377                 r = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 378                 g = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 379                 b = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 380             }
 381
 382             (*it)->def.setRGB( r, g, b );
 383         }
 384
 385
 386         // Look for objects using this color
 387         {
 388             SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 389             if ( desktop ) {
 390                 SPDocument* document = SP_DT_DOCUMENT( desktop );
 391                 Inkscape::XML::Node *rroot =  sp_document_repr_root( document );
 392                 if ( rroot ) {
 393
 394                     // Find where this thing came from
 395                     Glib::ustring paletteName;
 396                     bool found = false;
 397                     int index = 0;
 398                     for ( std::vector<JustForNow*>::iterator it2 = possible.begin(); it2 != possible.end() && !found; ++it2 ) {
 399                         JustForNow* curr = *it2;
 400                         index = 0;
 401                         for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 402                             if ( item == *zz ) {
 403                                 found = true;
 404                                 paletteName = curr->_name;
 405                                 break;
 406                             } else {
 407                                 index++;
 408                             }
 409                         }
 410                     }
 411
 412                     if ( !paletteName.empty() ) {
 413                         gchar* str = g_strdup_printf("%d|", index);
 414                         paletteName.insert( 0, str );
 415                         g_free(str);
 416                         str = 0;
 417
 418                         if ( bruteForce( document, rroot, paletteName, item->def.getR(), item->def.getG(), item->def.getB() ) ) {
 419                             sp_document_done( document );
 420                         }
 421                     }
 422                 }
 423             }
 424         }
 425     }
 426 }
 427
 428
 429 Gtk::Widget* ColorItem::getPreview(PreviewStyle style, ViewType view, Gtk::BuiltinIconSize size)
 430 {
 431     Gtk::Widget* widget = 0;
 432     if ( style == PREVIEW_STYLE_BLURB ) {
 433         Gtk::Label *lbl = new Gtk::Label(def.descr);
 434         lbl->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
 435         widget = lbl;
 436     } else {
 437         Glib::ustring blank("          ");
 438         if ( size == Gtk::ICON_SIZE_MENU ) {
 439             blank = " ";
 440         }
 441
 442         GtkWidget* eekWidget = eek_preview_new();
 443         EekPreview * preview = EEK_PREVIEW(eekWidget);
 444         Gtk::Widget* newBlot = Glib::wrap(eekWidget);
 445
 446         eek_preview_set_color( preview, (def.getR() << 8) | def.getR(), (def.getG() << 8) | def.getG(), (def.getB() << 8) | def.getB());
 447
 448         eek_preview_set_details( preview, (::PreviewStyle)style, (::ViewType)view, (::GtkIconSize)size );
 449         eek_preview_set_linked( preview, (LinkType)((_linkSrc ? PREVIEW_LINK_IN:0)
 450                                                     | (_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 451                                                     | (_isLive ? PREVIEW_LINK_OTHER:0)) );
 452
 453         def.addCallback( _colorDefChanged, this );
 454
 455         GValue val = {0, {{0}, {0}}};
 456         g_value_init( &val, G_TYPE_BOOLEAN );
 457         g_value_set_boolean( &val, FALSE );
 458         g_object_set_property( G_OBJECT(preview), "focus-on-click", &val );
 459
 460 /*
 461         Gtk::Button *btn = new Gtk::Button(blank);
 462         Gdk::Color color;
 463         color.set_rgb((_r << 8)|_r, (_g << 8)|_g, (_b << 8)|_b);
 464         btn->modify_bg(Gtk::STATE_NORMAL, color);
 465         btn->modify_bg(Gtk::STATE_ACTIVE, color);
 466         btn->modify_bg(Gtk::STATE_PRELIGHT, color);
 467         btn->modify_bg(Gtk::STATE_SELECTED, color);
 468
 469         Gtk::Widget* newBlot = btn;
 470 */
 471
 472         tips.set_tip((*newBlot), def.descr);
 473
 474 /*
 475         newBlot->signal_clicked().connect( sigc::mem_fun(*this, &ColorItem::buttonClicked) );
 476
 477         sigc::signal<void> type_signal_something;
 478 */
 479         g_signal_connect( G_OBJECT(newBlot->gobj()),
 480                           "clicked",
 481                           G_CALLBACK(bouncy),
 482                           this);
 483
 484         g_signal_connect( G_OBJECT(newBlot->gobj()),
 485                           "alt-clicked",
 486                           G_CALLBACK(bouncy2),
 487                           this);
 488
 489         gtk_drag_source_set( GTK_WIDGET(newBlot->gobj()),
 490                              GDK_BUTTON1_MASK,
 491                              sourceColorEntries,
 492                              G_N_ELEMENTS(sourceColorEntries),
 493                              GdkDragAction(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
 494
 495         g_signal_connect( G_OBJECT(newBlot->gobj()),
 496                           "drag-data-get",
 497                           G_CALLBACK(ColorItem::_dragGetColorData),
 498                           this);
 499
 500         g_signal_connect( G_OBJECT(newBlot->gobj()),
 501                           "drag-begin",
 502                           G_CALLBACK(dragBegin),
 503                           this );
 504
 505 //         g_signal_connect( G_OBJECT(newBlot->gobj()),
 506 //                           "drag-drop",
 507 //                           G_CALLBACK(dragDropColorData),
 508 //                           this);
 509
 510         if ( def.isEditable() )
 511         {
 512             gtk_drag_dest_set( GTK_WIDGET(newBlot->gobj()),
 513                                GTK_DEST_DEFAULT_ALL,
 514                                destColorTargets,
 515                                G_N_ELEMENTS(destColorTargets),
 516                                GdkDragAction(GDK_ACTION_COPY | GDK_ACTION_MOVE) );
 517
 518
 519             g_signal_connect( G_OBJECT(newBlot->gobj()),
 520                               "drag-data-received",
 521                               G_CALLBACK(_dropDataIn),
 522                               this );
 523         }
 524
 525         g_signal_connect( G_OBJECT(newBlot->gobj()),
 526                           "destroy",
 527                           G_CALLBACK(dieDieDie),
 528                           this);
 529
 530
 531         widget = newBlot;
 532     }
 533
 534     _previews.push_back( widget );
 535
 536     return widget;
 537 }
 538
 539 void ColorItem::buttonClicked(bool secondary)
 540 {
 541     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 542     if (desktop) {
 543         char const * attrName = secondary ? "stroke" : "fill";
 544         guint32 rgba = (def.getR() << 24) | (def.getG() << 16) | (def.getB() << 8) | 0xff;
 545         gchar c[64];
 546         sp_svg_write_color(c, 64, rgba);
 547
 548         SPCSSAttr *css = sp_repr_css_attr_new();
 549         sp_repr_css_set_property( css, attrName, c );
 550         sp_desktop_set_style(desktop, css);
 551
 552         sp_repr_css_attr_unref(css);
 553         sp_document_done (SP_DT_DOCUMENT (desktop));
 554     }
 555 }
 556
 557
 558
 559
 560 static char* trim( char* str ) {
 561     char* ret = str;
 562     while ( *str && (*str == ' ' || *str == '\t') ) {
 563         str++;
 564     }
 565     ret = str;
 566     while ( *str ) {
 567         str++;
 568     }
 569     str--;
 570     while ( str > ret && ( *str == ' ' || *str == '\t' ) || *str == '\r' || *str == '\n' ) {
 571         *str-- = 0;
 572     }
 573     return ret;
 574 }
 575
 576 void skipWhitespace( char*& str ) {
 577     while ( *str == ' ' || *str == '\t' ) {
 578         str++;
 579     }
 580 }
 581
 582 bool parseNum( char*& str, int& val ) {
 583     val = 0;
 584     while ( '0' <= *str && *str <= '9' ) {
 585         val = val * 10 + (*str - '0');
 586         str++;
 587     }
 588     bool retval = !(*str == 0 || *str == ' ' || *str == '\t' || *str == '\r' || *str == '\n');
 589     return retval;
 590 }
 591
 592
 593 static bool getBlock( std::string& dst, guchar ch, std::string const str )
 594 {
 595     bool good = false;
 596     size_t pos = str.find(ch);
 597     if ( pos != std::string::npos )
 598     {
 599         size_t pos2 = str.find( '(', pos );
 600         if ( pos2 != std::string::npos ) {
 601             size_t endPos = str.find( ')', pos2 );
 602             if ( endPos != std::string::npos ) {
 603                 dst = str.substr( pos2 + 1, (endPos - pos2 - 1) );
 604                 good = true;
 605             }
 606         }
 607     }
 608     return good;
 609 }
 610
 611 static bool popVal( guint64& numVal, std::string& str )
 612 {
 613     bool good = false;
 614     size_t endPos = str.find(',');
 615     if ( endPos == std::string::npos ) {
 616         endPos = str.length();
 617     }
 618
 619     if ( endPos != std::string::npos && endPos > 0 ) {
 620         std::string xxx = str.substr( 0, endPos );
 621         const gchar* ptr = xxx.c_str();
 622         gchar* endPtr = 0;
 623         numVal = g_ascii_strtoull( ptr, &endPtr, 10 );
 624         if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 625             // overflow
 626         } else if ( (numVal == 0) && (endPtr == ptr) ) {
 627             // failed conversion
 628         } else {
 629             good = true;
 630             str.erase( 0, endPos + 1 );
 631         }
 632     }
 633
 634     return good;
 635 }
 636
 637 void ColorItem::_wireMagicColors( void* p )
 638 {
 639     JustForNow* onceMore = reinterpret_cast<JustForNow*>(p);
 640     if ( onceMore )
 641     {
 642         for ( std::vector<ColorItem*>::iterator it = onceMore->_colors.begin(); it != onceMore->_colors.end(); ++it )
 643         {
 644             size_t pos = (*it)->def.descr.find("*{");
 645             if ( pos != std::string::npos )
 646             {
 647                 std::string subby = (*it)->def.descr.substr( pos + 2 );
 648                 size_t endPos = subby.find("}*");
 649                 if ( endPos != std::string::npos )
 650                 {
 651                     subby.erase( endPos );
 652                     //g_message("FOUND MAGIC at '%s'", (*it)->def.descr.c_str());
 653                     //g_message("               '%s'", subby.c_str());
 654
 655                     if ( subby.find('E') != std::string::npos )
 656                     {
 657                         (*it)->def.setEditable( true );
 658                     }
 659
 660                     if ( subby.find('L') != std::string::npos )
 661                     {
 662                         (*it)->_isLive = true;
 663                     }
 664
 665                     std::string part;
 666                     // Tint. index + 1 more val.
 667                     if ( getBlock( part, 'T', subby ) ) {
 668                         guint64 colorIndex = 0;
 669                         if ( popVal( colorIndex, part ) ) {
 670                             guint64 percent = 0;
 671                             if ( popVal( percent, part ) ) {
 672                                 (*it)->_linkTint( *(onceMore->_colors[colorIndex]), percent );
 673                             }
 674                         }
 675                     }
 676
 677                     // Shade/tone. index + 1 or 2 more val.
 678                     if ( getBlock( part, 'S', subby ) ) {
 679                         guint64 colorIndex = 0;
 680                         if ( popVal( colorIndex, part ) ) {
 681                             guint64 percent = 0;
 682                             if ( popVal( percent, part ) ) {
 683                                 guint64 grayLevel = 0;
 684                                 if ( !popVal( grayLevel, part ) ) {
 685                                     grayLevel = 0;
 686                                 }
 687                                 (*it)->_linkTone( *(onceMore->_colors[colorIndex]), percent, grayLevel );
 688                             }
 689                         }
 690                     }
 691
 692                 }
 693             }
 694         }
 695     }
 696 }
 697
 698
 699 void ColorItem::_linkTint( ColorItem& other, int percent )
 700 {
 701     if ( !_linkSrc )
 702     {
 703         other._listeners.push_back(this);
 704         _linkIsTone = false;
 705         _linkPercent = percent;
 706         if ( _linkPercent > 100 )
 707             _linkPercent = 100;
 708         if ( _linkPercent < 0 )
 709             _linkPercent = 0;
 710         _linkGray = 0;
 711         _linkSrc = &other;
 712
 713         ColorItem::_colorDefChanged(&other);
 714     }
 715 }
 716
 717 void ColorItem::_linkTone( ColorItem& other, int percent, int grayLevel )
 718 {
 719     if ( !_linkSrc )
 720     {
 721         other._listeners.push_back(this);
 722         _linkIsTone = true;
 723         _linkPercent = percent;
 724         if ( _linkPercent > 100 )
 725             _linkPercent = 100;
 726         if ( _linkPercent < 0 )
 727             _linkPercent = 0;
 728         _linkGray = grayLevel;
 729         _linkSrc = &other;
 730
 731         ColorItem::_colorDefChanged(&other);
 732     }
 733 }
 734
 735
 736 void _loadPaletteFile( gchar const *filename )
 737 {
 738     char block[1024];
 739     FILE *f = Inkscape::IO::fopen_utf8name( filename, "r" );
 740     if ( f ) {
 741         char* result = fgets( block, sizeof(block), f );
 742         if ( result ) {
 743             if ( strncmp( "GIMP Palette", block, 12 ) == 0 ) {
 744                 bool inHeader = true;
 745                 bool hasErr = false;
 746
 747                 JustForNow *onceMore = new JustForNow();
 748
 749                 do {
 750                     result = fgets( block, sizeof(block), f );
 751                     block[sizeof(block) - 1] = 0;
 752                     if ( result ) {
 753                         if ( block[0] == '#' ) {
 754                             // ignore comment
 755                         } else {
 756                             char *ptr = block;
 757                             // very simple check for header versus entry
 758                             while ( *ptr == ' ' || *ptr == '\t' ) {
 759                                 ptr++;
 760                             }
 761                             if ( *ptr == 0 ) {
 762                                 // blank line. skip it.
 763                             } else if ( '0' <= *ptr && *ptr <= '9' ) {
 764                                 // should be an entry link
 765                                 inHeader = false;
 766                                 ptr = block;
 767                                 Glib::ustring name("");
 768                                 int r = 0;
 769                                 int g = 0;
 770                                 int b = 0;
 771                                 skipWhitespace(ptr);
 772                                 if ( *ptr ) {
 773                                     hasErr = parseNum(ptr, r);
 774                                     if ( !hasErr ) {
 775                                         skipWhitespace(ptr);
 776                                         hasErr = parseNum(ptr, g);
 777                                     }
 778                                     if ( !hasErr ) {
 779                                         skipWhitespace(ptr);
 780                                         hasErr = parseNum(ptr, b);
 781                                     }
 782                                     if ( !hasErr && *ptr ) {
 783                                         char* n = trim(ptr);
 784                                         if (n != NULL) {
 785                                             name = n;
 786                                         }
 787                                     }
 788                                     if ( !hasErr ) {
 789                                         // Add the entry now
 790                                         Glib::ustring nameStr(name);
 791                                         ColorItem* item = new ColorItem( r, g, b, nameStr );
 792                                         onceMore->_colors.push_back(item);
 793                                     }
 794                                 } else {
 795                                     hasErr = true;
 796                                 }
 797                             } else {
 798                                 if ( !inHeader ) {
 799                                     // Hmmm... probably bad. Not quite the format we want?
 800                                     hasErr = true;
 801                                 } else {
 802                                     char* sep = strchr(result, ':');
 803                                     if ( sep ) {
 804                                         *sep = 0;
 805                                         char* val = trim(sep + 1);
 806                                         char* name = trim(result);
 807                                         if ( *name ) {
 808                                             if ( strcmp( "Name", name ) == 0 )
 809                                             {
 810                                                 onceMore->_name = val;
 811                                             }
 812                                             else if ( strcmp( "Columns", name ) == 0 )
 813                                             {
 814                                                 gchar* endPtr = 0;
 815                                                 guint64 numVal = g_ascii_strtoull( val, &endPtr, 10 );
 816                                                 if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 817                                                     // overflow
 818                                                 } else if ( (numVal == 0) && (endPtr == val) ) {
 819                                                     // failed conversion
 820                                                 } else {
 821                                                     onceMore->_prefWidth = numVal;
 822                                                 }
 823                                             }
 824                                         } else {
 825                                             // error
 826                                             hasErr = true;
 827                                         }
 828                                     } else {
 829                                         // error
 830                                         hasErr = true;
 831                                     }
 832                                 }
 833                             }
 834                         }
 835                     }
 836                 } while ( result && !hasErr );
 837                 if ( !hasErr ) {
 838                     possible.push_back(onceMore);
 839                     ColorItem::_wireMagicColors( onceMore );
 840                 } else {
 841                     delete onceMore;
 842                 }
 843             }
 844         }
 845
 846         fclose(f);
 847     }
 848 }
 849
 850 static void loadEmUp()
 851 {
 852     static bool beenHere = false;
 853     if ( !beenHere ) {
 854         beenHere = true;
 855
 856         std::list<gchar *> sources;
 857         sources.push_back( profile_path("palettes") );
 858         sources.push_back( g_strdup(INKSCAPE_PALETTESDIR) );
 859
 860         // Use this loop to iterate through a list of possible document locations.
 861         while (!sources.empty()) {
 862             gchar *dirname = sources.front();
 863
 864             if ( Inkscape::IO::file_test( dirname, (GFileTest)(G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR) ) ) {
 865                 GError *err = 0;
 866                 GDir *directory = g_dir_open(dirname, 0, &err);
 867                 if (!directory) {
 868                     gchar *safeDir = Inkscape::IO::sanitizeString(dirname);
 869                     g_warning(_("Palettes directory (%s) is unavailable."), safeDir);
 870                     g_free(safeDir);
 871                 } else {
 872                     gchar *filename = 0;
 873                     while ((filename = (gchar *)g_dir_read_name(directory)) != NULL) {
 874                         gchar* lower = g_ascii_strdown( filename, -1 );
 875                         if ( g_str_has_suffix(lower, ".gpl") ) {
 876                             gchar* full = g_build_filename(dirname, filename, NULL);
 877                             if ( !Inkscape::IO::file_test( full, (GFileTest)(G_FILE_TEST_IS_DIR ) ) ) {
 878                                 _loadPaletteFile(full);
 879                             }
 880                             g_free(full);
 881                         }
 882                         g_free(lower);
 883                     }
 884                     g_dir_close(directory);
 885                 }
 886             }
 887
 888             // toss the dirname
 889             g_free(dirname);
 890             sources.pop_front();
 891         }
 892     }
 893 }
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903 SwatchesPanel& SwatchesPanel::getInstance()
 904 {
 905     if ( !instance ) {
 906         instance = new SwatchesPanel();
 907     }
 908
 909     return *instance;
 910 }
 911
 912
 913
 914 /**
 915  * Constructor
 916  */
 917 SwatchesPanel::SwatchesPanel() :
 918     Inkscape::UI::Widget::Panel ("dialogs.swatches"),
 919     _holder(0)
 920 {
 921     _holder = new PreviewHolder();
 922     loadEmUp();
 923
 924     if ( !possible.empty() ) {
 925         JustForNow* first = possible.front();
 926         if ( first->_prefWidth > 0 ) {
 927             _holder->setColumnPref( first->_prefWidth );
 928         }
 929         _holder->freezeUpdates();
 930         for ( std::vector<ColorItem*>::iterator it = first->_colors.begin(); it != first->_colors.end(); it++ ) {
 931             _holder->addPreview(*it);
 932         }
 933         _holder->thawUpdates();
 934
 935         Gtk::RadioMenuItem::Group groupOne;
 936         int i = 0;
 937         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end(); it++ ) {
 938             JustForNow* curr = *it;
 939             Gtk::RadioMenuItem* single = manage(new Gtk::RadioMenuItem(groupOne, curr->_name));
 940             _regItem( single, 3, i );
 941             i++;
 942         }
 943
 944     }
 945
 946
 947     _getContents()->pack_start(*_holder, Gtk::PACK_EXPAND_WIDGET);
 948     _setTargetFillable(_holder);
 949
 950     show_all_children();
 951
 952     restorePanelPrefs();
 953 }
 954
 955 SwatchesPanel::~SwatchesPanel()
 956 {
 957 }
 958
 959 void SwatchesPanel::setOrientation( Gtk::AnchorType how )
 960 {
 961     // Must call the parent class or bad things might happen
 962     Inkscape::UI::Widget::Panel::setOrientation( how );
 963
 964     if ( _holder )
 965     {
 966         _holder->setOrientation( Gtk::ANCHOR_SOUTH );
 967     }
 968 }
 969
 970 void SwatchesPanel::_handleAction( int setId, int itemId )
 971 {
 972     switch( setId ) {
 973         case 3:
 974         {
 975             if ( itemId >= 0 && itemId < static_cast<int>(possible.size()) ) {
 976                 _holder->clear();
 977                 JustForNow* curr = possible[itemId];
 978                 if ( curr->_prefWidth > 0 ) {
 979                     _holder->setColumnPref( curr->_prefWidth );
 980                 }
 981                 _holder->freezeUpdates();
 982                 for ( std::vector<ColorItem*>::iterator it = curr->_colors.begin(); it != curr->_colors.end(); it++ ) {
 983                     _holder->addPreview(*it);
 984                 }
 985                 _holder->thawUpdates();
 986             }
 987         }
 988         break;
 989     }
 990 }
 991
 992 } //namespace Dialogs
 993 } //namespace UI
 994 } //namespace Inkscape
 995
 996
 997 /*
 998   Local Variables:
 999   mode:c++
1000   c-file-style:"stroustrup"
1001   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1002   indent-tabs-mode:nil
1003   fill-column:99
1004   End:
1005 */
1006 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :