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 #include "prefs-utils.h"
  34
  35 #include "eek-preview.h"
  36
  37 namespace Inkscape {
  38 namespace UI {
  39 namespace Dialogs {
  40
  41 SwatchesPanel* SwatchesPanel::instance = 0;
  42
  43
  44 ColorItem::ColorItem( unsigned int r, unsigned int g, unsigned int b, Glib::ustring& name ) :
  45     def( r, g, b, name ),
  46     _isLive(false),
  47     _linkIsTone(false),
  48     _linkPercent(0),
  49     _linkGray(0),
  50     _linkSrc(0)
  51 {
  52 }
  53
  54 ColorItem::~ColorItem()
  55 {
  56 }
  57
  58 ColorItem::ColorItem(ColorItem const &other) :
  59     Inkscape::UI::Previewable()
  60 {
  61     if ( this != &other ) {
  62         *this = other;
  63     }
  64 }
  65
  66 ColorItem &ColorItem::operator=(ColorItem const &other)
  67 {
  68     if ( this != &other ) {
  69         def = other.def;
  70
  71         // TODO - correct linkage
  72         _linkSrc = other._linkSrc;
  73         g_message("Erk!");
  74     }
  75     return *this;
  76 }
  77
  78
  79 class JustForNow
  80 {
  81 public:
  82     JustForNow() : _prefWidth(0) {}
  83
  84     Glib::ustring _name;
  85     int _prefWidth;
  86     std::vector<ColorItem*> _colors;
  87 };
  88
  89 static std::vector<JustForNow*> possible;
  90
  91
  92
  93 typedef enum {
  94     APP_X_INKY_COLOR_ID = 0,
  95     APP_X_INKY_COLOR = 0,
  96     APP_X_COLOR,
  97     TEXT_DATA
  98 } colorFlavorType;
  99
 100 static const GtkTargetEntry sourceColorEntries[] = {
 101 #if ENABLE_MAGIC_COLORS
 102 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 103     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 104 #endif // ENABLE_MAGIC_COLORS
 105     {"application/x-color", 0, APP_X_COLOR},
 106     {"text/plain", 0, TEXT_DATA},
 107 };
 108
 109 void ColorItem::_dragGetColorData( GtkWidget *widget,
 110                                    GdkDragContext *drag_context,
 111                                    GtkSelectionData *data,
 112                                    guint info,
 113                                    guint time,
 114                                    gpointer user_data)
 115 {
 116     static GdkAtom typeXColor = gdk_atom_intern("application/x-color", FALSE);
 117     static GdkAtom typeText = gdk_atom_intern("text/plain", FALSE);
 118
 119     ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 120     if ( info == TEXT_DATA ) {
 121         gchar* tmp = g_strdup_printf("#%02x%02x%02x", item->def.getR(), item->def.getG(), item->def.getB() );
 122
 123         gtk_selection_data_set( data,
 124                                 typeText,
 125                                 8, // format
 126                                 (guchar*)tmp,
 127                                 strlen((const char*)tmp) + 1);
 128         g_free(tmp);
 129         tmp = 0;
 130     } else if ( info == APP_X_INKY_COLOR ) {
 131         Glib::ustring paletteName;
 132
 133         // Find where this thing came from
 134         bool found = false;
 135         int index = 0;
 136         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end() && !found; ++it ) {
 137             JustForNow* curr = *it;
 138             index = 0;
 139             for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 140                 if ( item == *zz ) {
 141                     found = true;
 142                     paletteName = curr->_name;
 143                     break;
 144                 } else {
 145                     index++;
 146                 }
 147             }
 148         }
 149
 150 //         if ( found ) {
 151 //             g_message("Found the color at entry %d in palette '%s'", index, paletteName.c_str() );
 152 //         } else {
 153 //             g_message("Unable to find the color");
 154 //         }
 155         int itemCount = 4 + 2 + 1 + paletteName.length();
 156
 157         guint16* tmp = new guint16[itemCount];
 158         tmp[0] = (item->def.getR() << 8) | item->def.getR();
 159         tmp[1] = (item->def.getG() << 8) | item->def.getG();
 160         tmp[2] = (item->def.getB() << 8) | item->def.getB();
 161         tmp[3] = 0xffff;
 162         tmp[4] = (item->_isLive || !item->_listeners.empty() || (item->_linkSrc != 0) ) ? 1 : 0;
 163
 164         tmp[5] = index;
 165         tmp[6] = paletteName.length();
 166         for ( unsigned int i = 0; i < paletteName.length(); i++ ) {
 167             tmp[7 + i] = paletteName[i];
 168         }
 169         gtk_selection_data_set( data,
 170                                 typeXColor,
 171                                 16, // format
 172                                 reinterpret_cast<const guchar*>(tmp),
 173                                 itemCount * 2);
 174         delete[] tmp;
 175     } else {
 176         guint16 tmp[4];
 177         tmp[0] = (item->def.getR() << 8) | item->def.getR();
 178         tmp[1] = (item->def.getG() << 8) | item->def.getG();
 179         tmp[2] = (item->def.getB() << 8) | item->def.getB();
 180         tmp[3] = 0xffff;
 181         gtk_selection_data_set( data,
 182                                 typeXColor,
 183                                 16, // format
 184                                 reinterpret_cast<const guchar*>(tmp),
 185                                 (3+1) * 2);
 186     }
 187 }
 188
 189 static void dragBegin( GtkWidget *widget, GdkDragContext* dc, gpointer data )
 190 {
 191     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 192     if ( item )
 193     {
 194         Glib::RefPtr<Gdk::Pixbuf> thumb = Gdk::Pixbuf::create( Gdk::COLORSPACE_RGB, false, 8, 32, 24 );
 195         guint32 fillWith = (0xff000000 & (item->def.getR() << 24))
 196                          | (0x00ff0000 & (item->def.getG() << 16))
 197                          | (0x0000ff00 & (item->def.getB() <<  8));
 198         thumb->fill( fillWith );
 199         gtk_drag_set_icon_pixbuf( dc, thumb->gobj(), 0, 0 );
 200     }
 201
 202 }
 203
 204 //"drag-drop"
 205 // gboolean dragDropColorData( GtkWidget *widget,
 206 //                             GdkDragContext *drag_context,
 207 //                             gint x,
 208 //                             gint y,
 209 //                             guint time,
 210 //                             gpointer user_data)
 211 // {
 212 // // TODO finish
 213
 214 //     return TRUE;
 215 // }
 216
 217 static gboolean onButtonPressed (GtkWidget *widget, GdkEventButton *event, gpointer userdata)
 218 {
 219     /* single click with the right mouse button? */
 220     if(event->type == GDK_BUTTON_RELEASE)
 221     {
 222         ColorItem* item = reinterpret_cast<ColorItem*>(userdata);
 223         if(item)
 224         {
 225             if (event->button == 1)
 226             {
 227                 item->buttonClicked(false);
 228                 return TRUE; /* we handled this */
 229             }
 230             else if (event->button == 3)
 231             {
 232                 item->buttonClicked(true);
 233                 return TRUE; /* we handled this */
 234             }
 235         }
 236     }
 237
 238     return FALSE; /* we did not handle this */
 239 }
 240
 241 static void dieDieDie( GtkObject *obj, gpointer user_data )
 242 {
 243     g_message("die die die %p  %p", obj, user_data );
 244 }
 245
 246 static const GtkTargetEntry destColorTargets[] = {
 247 #if ENABLE_MAGIC_COLORS
 248 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 249     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 250 #endif // ENABLE_MAGIC_COLORS
 251     {"application/x-color", 0, APP_X_COLOR},
 252 };
 253
 254 #include "color.h" // for SP_RGBA32_U_COMPOSE
 255
 256 void ColorItem::_dropDataIn( GtkWidget *widget,
 257                              GdkDragContext *drag_context,
 258                              gint x, gint y,
 259                              GtkSelectionData *data,
 260                              guint info,
 261                              guint event_time,
 262                              gpointer user_data)
 263 {
 264 //     g_message("    droppy droppy   %d", info);
 265      switch (info) {
 266          case APP_X_INKY_COLOR:
 267          {
 268              if ( data->length >= 8 ) {
 269                  // Careful about endian issues.
 270                  guint16* dataVals = (guint16*)data->data;
 271                  if ( user_data ) {
 272                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 273                      if ( item->def.isEditable() ) {
 274                          // Shove on in the new value
 275                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 276                      }
 277                  }
 278              }
 279              break;
 280          }
 281          case APP_X_COLOR:
 282          {
 283              if ( data->length == 8 ) {
 284                  // Careful about endian issues.
 285                  guint16* dataVals = (guint16*)data->data;
 286 //                  {
 287 //                      gchar c[64] = {0};
 288 //                      sp_svg_write_color( c, 64,
 289 //                                          SP_RGBA32_U_COMPOSE(
 290 //                                              0x0ff & (dataVals[0] >> 8),
 291 //                                              0x0ff & (dataVals[1] >> 8),
 292 //                                              0x0ff & (dataVals[2] >> 8),
 293 //                                              0xff // can't have transparency in the color itself
 294 //                                              //0x0ff & (data->data[3] >> 8),
 295 //                                              ));
 296 //                  }
 297                  if ( user_data ) {
 298                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 299                      if ( item->def.isEditable() ) {
 300                          // Shove on in the new value
 301                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 302                      }
 303                  }
 304              }
 305              break;
 306          }
 307          default:
 308              g_message("unknown drop type");
 309      }
 310
 311 }
 312
 313 static bool bruteForce( SPDocument* document, Inkscape::XML::Node* node, Glib::ustring const& match, int r, int g, int b )
 314 {
 315     bool changed = false;
 316
 317     if ( node ) {
 318         gchar const * val = node->attribute("inkscape:x-fill-tag");
 319         if ( val  && (match == val) ) {
 320             SPObject *obj = document->getObjectByRepr( node );
 321
 322             gchar c[64] = {0};
 323             sp_svg_write_color( c, 64, SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 324             SPCSSAttr *css = sp_repr_css_attr_new();
 325             sp_repr_css_set_property( css, "fill", c );
 326
 327             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 328             ((SPItem*)obj)->updateRepr();
 329
 330             changed = true;
 331         }
 332
 333         val = node->attribute("inkscape:x-stroke-tag");
 334         if ( val  && (match == val) ) {
 335             SPObject *obj = document->getObjectByRepr( node );
 336
 337             gchar c[64] = {0};
 338             sp_svg_write_color( c, 64, SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 339             SPCSSAttr *css = sp_repr_css_attr_new();
 340             sp_repr_css_set_property( css, "stroke", c );
 341
 342             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 343             ((SPItem*)obj)->updateRepr();
 344
 345             changed = true;
 346         }
 347
 348         Inkscape::XML::Node* first = node->firstChild();
 349         changed |= bruteForce( document, first, match, r, g, b );
 350
 351         changed |= bruteForce( document, node->next(), match, r, g, b );
 352     }
 353
 354     return changed;
 355 }
 356
 357 void ColorItem::_colorDefChanged(void* data)
 358 {
 359     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 360     if ( item ) {
 361         for ( std::vector<Gtk::Widget*>::iterator it =  item->_previews.begin(); it != item->_previews.end(); ++it ) {
 362             Gtk::Widget* widget = *it;
 363             if ( IS_EEK_PREVIEW(widget->gobj()) ) {
 364                 EekPreview * preview = EEK_PREVIEW(widget->gobj());
 365                 eek_preview_set_color( preview,
 366                                        (item->def.getR() << 8) | item->def.getR(),
 367                                        (item->def.getG() << 8) | item->def.getG(),
 368                                        (item->def.getB() << 8) | item->def.getB() );
 369
 370                 eek_preview_set_linked( preview, (LinkType)((item->_linkSrc ? PREVIEW_LINK_IN:0)
 371                                                             | (item->_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 372                                                             | (item->_isLive ? PREVIEW_LINK_OTHER:0)) );
 373
 374                 widget->queue_draw();
 375             }
 376         }
 377
 378         for ( std::vector<ColorItem*>::iterator it = item->_listeners.begin(); it != item->_listeners.end(); ++it ) {
 379             guint r = item->def.getR();
 380             guint g = item->def.getG();
 381             guint b = item->def.getB();
 382
 383             if ( (*it)->_linkIsTone ) {
 384                 r = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 385                 g = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 386                 b = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 387             } else {
 388                 r = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 389                 g = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 390                 b = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 391             }
 392
 393             (*it)->def.setRGB( r, g, b );
 394         }
 395
 396
 397         // Look for objects using this color
 398         {
 399             SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 400             if ( desktop ) {
 401                 SPDocument* document = sp_desktop_document( desktop );
 402                 Inkscape::XML::Node *rroot =  sp_document_repr_root( document );
 403                 if ( rroot ) {
 404
 405                     // Find where this thing came from
 406                     Glib::ustring paletteName;
 407                     bool found = false;
 408                     int index = 0;
 409                     for ( std::vector<JustForNow*>::iterator it2 = possible.begin(); it2 != possible.end() && !found; ++it2 ) {
 410                         JustForNow* curr = *it2;
 411                         index = 0;
 412                         for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 413                             if ( item == *zz ) {
 414                                 found = true;
 415                                 paletteName = curr->_name;
 416                                 break;
 417                             } else {
 418                                 index++;
 419                             }
 420                         }
 421                     }
 422
 423                     if ( !paletteName.empty() ) {
 424                         gchar* str = g_strdup_printf("%d|", index);
 425                         paletteName.insert( 0, str );
 426                         g_free(str);
 427                         str = 0;
 428
 429                         if ( bruteForce( document, rroot, paletteName, item->def.getR(), item->def.getG(), item->def.getB() ) ) {
 430                             sp_document_done( document , SP_VERB_DIALOG_SWATCHES,
 431                                               _("Change color definition"));
 432                         }
 433                     }
 434                 }
 435             }
 436         }
 437     }
 438 }
 439
 440
 441 Gtk::Widget* ColorItem::getPreview(PreviewStyle style, ViewType view, Inkscape::IconSize size)
 442 {
 443     Gtk::Widget* widget = 0;
 444     if ( style == PREVIEW_STYLE_BLURB ) {
 445         Gtk::Label *lbl = new Gtk::Label(def.descr);
 446         lbl->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
 447         widget = lbl;
 448     } else {
 449         Glib::ustring blank("          ");
 450         if ( size == Inkscape::ICON_SIZE_MENU || size == Inkscape::ICON_SIZE_DECORATION ) {
 451             blank = " ";
 452         }
 453
 454         GtkWidget* eekWidget = eek_preview_new();
 455         EekPreview * preview = EEK_PREVIEW(eekWidget);
 456         Gtk::Widget* newBlot = Glib::wrap(eekWidget);
 457
 458         eek_preview_set_color( preview, (def.getR() << 8) | def.getR(), (def.getG() << 8) | def.getG(), (def.getB() << 8) | def.getB());
 459
 460         eek_preview_set_details( preview, (::PreviewStyle)style, (::ViewType)view, (::GtkIconSize)size );
 461         eek_preview_set_linked( preview, (LinkType)((_linkSrc ? PREVIEW_LINK_IN:0)
 462                                                     | (_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 463                                                     | (_isLive ? PREVIEW_LINK_OTHER:0)) );
 464
 465         def.addCallback( _colorDefChanged, this );
 466
 467         GValue val = {0, {{0}, {0}}};
 468         g_value_init( &val, G_TYPE_BOOLEAN );
 469         g_value_set_boolean( &val, FALSE );
 470         g_object_set_property( G_OBJECT(preview), "focus-on-click", &val );
 471
 472 /*
 473         Gtk::Button *btn = new Gtk::Button(blank);
 474         Gdk::Color color;
 475         color.set_rgb((_r << 8)|_r, (_g << 8)|_g, (_b << 8)|_b);
 476         btn->modify_bg(Gtk::STATE_NORMAL, color);
 477         btn->modify_bg(Gtk::STATE_ACTIVE, color);
 478         btn->modify_bg(Gtk::STATE_PRELIGHT, color);
 479         btn->modify_bg(Gtk::STATE_SELECTED, color);
 480
 481         Gtk::Widget* newBlot = btn;
 482 */
 483
 484         tips.set_tip((*newBlot), def.descr);
 485
 486 /*
 487         newBlot->signal_clicked().connect( sigc::mem_fun(*this, &ColorItem::buttonClicked) );
 488
 489         sigc::signal<void> type_signal_something;
 490 */
 491         g_signal_connect( G_OBJECT(newBlot->gobj()),
 492                           "button-release-event",
 493                           G_CALLBACK(onButtonPressed),
 494                           this);
 495
 496         gtk_drag_source_set( GTK_WIDGET(newBlot->gobj()),
 497                              GDK_BUTTON1_MASK,
 498                              sourceColorEntries,
 499                              G_N_ELEMENTS(sourceColorEntries),
 500                              GdkDragAction(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
 501
 502         g_signal_connect( G_OBJECT(newBlot->gobj()),
 503                           "drag-data-get",
 504                           G_CALLBACK(ColorItem::_dragGetColorData),
 505                           this);
 506
 507         g_signal_connect( G_OBJECT(newBlot->gobj()),
 508                           "drag-begin",
 509                           G_CALLBACK(dragBegin),
 510                           this );
 511
 512 //         g_signal_connect( G_OBJECT(newBlot->gobj()),
 513 //                           "drag-drop",
 514 //                           G_CALLBACK(dragDropColorData),
 515 //                           this);
 516
 517         if ( def.isEditable() )
 518         {
 519             gtk_drag_dest_set( GTK_WIDGET(newBlot->gobj()),
 520                                GTK_DEST_DEFAULT_ALL,
 521                                destColorTargets,
 522                                G_N_ELEMENTS(destColorTargets),
 523                                GdkDragAction(GDK_ACTION_COPY | GDK_ACTION_MOVE) );
 524
 525
 526             g_signal_connect( G_OBJECT(newBlot->gobj()),
 527                               "drag-data-received",
 528                               G_CALLBACK(_dropDataIn),
 529                               this );
 530         }
 531
 532         g_signal_connect( G_OBJECT(newBlot->gobj()),
 533                           "destroy",
 534                           G_CALLBACK(dieDieDie),
 535                           this);
 536
 537
 538         widget = newBlot;
 539     }
 540
 541     _previews.push_back( widget );
 542
 543     return widget;
 544 }
 545
 546 void ColorItem::buttonClicked(bool secondary)
 547 {
 548     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 549     if (desktop) {
 550         char const * attrName = secondary ? "stroke" : "fill";
 551         guint32 rgba = (def.getR() << 24) | (def.getG() << 16) | (def.getB() << 8) | 0xff;
 552         gchar c[64];
 553         sp_svg_write_color(c, 64, rgba);
 554
 555         SPCSSAttr *css = sp_repr_css_attr_new();
 556         sp_repr_css_set_property( css, attrName, c );
 557         sp_desktop_set_style(desktop, css);
 558
 559         sp_repr_css_attr_unref(css);
 560         sp_document_done (sp_desktop_document (desktop), SP_VERB_DIALOG_SWATCHES,
 561                           secondary? _("Set stroke color from swatch") : _("Set fill color from swatch"));
 562     }
 563 }
 564
 565
 566
 567
 568 static char* trim( char* str ) {
 569     char* ret = str;
 570     while ( *str && (*str == ' ' || *str == '\t') ) {
 571         str++;
 572     }
 573     ret = str;
 574     while ( *str ) {
 575         str++;
 576     }
 577     str--;
 578     while ( str > ret && ( *str == ' ' || *str == '\t' ) || *str == '\r' || *str == '\n' ) {
 579         *str-- = 0;
 580     }
 581     return ret;
 582 }
 583
 584 void skipWhitespace( char*& str ) {
 585     while ( *str == ' ' || *str == '\t' ) {
 586         str++;
 587     }
 588 }
 589
 590 bool parseNum( char*& str, int& val ) {
 591     val = 0;
 592     while ( '0' <= *str && *str <= '9' ) {
 593         val = val * 10 + (*str - '0');
 594         str++;
 595     }
 596     bool retval = !(*str == 0 || *str == ' ' || *str == '\t' || *str == '\r' || *str == '\n');
 597     return retval;
 598 }
 599
 600
 601 static bool getBlock( std::string& dst, guchar ch, std::string const str )
 602 {
 603     bool good = false;
 604     std::string::size_type pos = str.find(ch);
 605     if ( pos != std::string::npos )
 606     {
 607         std::string::size_type pos2 = str.find( '(', pos );
 608         if ( pos2 != std::string::npos ) {
 609             std::string::size_type endPos = str.find( ')', pos2 );
 610             if ( endPos != std::string::npos ) {
 611                 dst = str.substr( pos2 + 1, (endPos - pos2 - 1) );
 612                 good = true;
 613             }
 614         }
 615     }
 616     return good;
 617 }
 618
 619 static bool popVal( guint64& numVal, std::string& str )
 620 {
 621     bool good = false;
 622     std::string::size_type endPos = str.find(',');
 623     if ( endPos == std::string::npos ) {
 624         endPos = str.length();
 625     }
 626
 627     if ( endPos != std::string::npos && endPos > 0 ) {
 628         std::string xxx = str.substr( 0, endPos );
 629         const gchar* ptr = xxx.c_str();
 630         gchar* endPtr = 0;
 631         numVal = g_ascii_strtoull( ptr, &endPtr, 10 );
 632         if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 633             // overflow
 634         } else if ( (numVal == 0) && (endPtr == ptr) ) {
 635             // failed conversion
 636         } else {
 637             good = true;
 638             str.erase( 0, endPos + 1 );
 639         }
 640     }
 641
 642     return good;
 643 }
 644
 645 void ColorItem::_wireMagicColors( void* p )
 646 {
 647     JustForNow* onceMore = reinterpret_cast<JustForNow*>(p);
 648     if ( onceMore )
 649     {
 650         for ( std::vector<ColorItem*>::iterator it = onceMore->_colors.begin(); it != onceMore->_colors.end(); ++it )
 651         {
 652             std::string::size_type pos = (*it)->def.descr.find("*{");
 653             if ( pos != std::string::npos )
 654             {
 655                 std::string subby = (*it)->def.descr.substr( pos + 2 );
 656                 std::string::size_type endPos = subby.find("}*");
 657                 if ( endPos != std::string::npos )
 658                 {
 659                     subby.erase( endPos );
 660                     //g_message("FOUND MAGIC at '%s'", (*it)->def.descr.c_str());
 661                     //g_message("               '%s'", subby.c_str());
 662
 663                     if ( subby.find('E') != std::string::npos )
 664                     {
 665                         (*it)->def.setEditable( true );
 666                     }
 667
 668                     if ( subby.find('L') != std::string::npos )
 669                     {
 670                         (*it)->_isLive = true;
 671                     }
 672
 673                     std::string part;
 674                     // Tint. index + 1 more val.
 675                     if ( getBlock( part, 'T', subby ) ) {
 676                         guint64 colorIndex = 0;
 677                         if ( popVal( colorIndex, part ) ) {
 678                             guint64 percent = 0;
 679                             if ( popVal( percent, part ) ) {
 680                                 (*it)->_linkTint( *(onceMore->_colors[colorIndex]), percent );
 681                             }
 682                         }
 683                     }
 684
 685                     // Shade/tone. index + 1 or 2 more val.
 686                     if ( getBlock( part, 'S', subby ) ) {
 687                         guint64 colorIndex = 0;
 688                         if ( popVal( colorIndex, part ) ) {
 689                             guint64 percent = 0;
 690                             if ( popVal( percent, part ) ) {
 691                                 guint64 grayLevel = 0;
 692                                 if ( !popVal( grayLevel, part ) ) {
 693                                     grayLevel = 0;
 694                                 }
 695                                 (*it)->_linkTone( *(onceMore->_colors[colorIndex]), percent, grayLevel );
 696                             }
 697                         }
 698                     }
 699
 700                 }
 701             }
 702         }
 703     }
 704 }
 705
 706
 707 void ColorItem::_linkTint( ColorItem& other, int percent )
 708 {
 709     if ( !_linkSrc )
 710     {
 711         other._listeners.push_back(this);
 712         _linkIsTone = false;
 713         _linkPercent = percent;
 714         if ( _linkPercent > 100 )
 715             _linkPercent = 100;
 716         if ( _linkPercent < 0 )
 717             _linkPercent = 0;
 718         _linkGray = 0;
 719         _linkSrc = &other;
 720
 721         ColorItem::_colorDefChanged(&other);
 722     }
 723 }
 724
 725 void ColorItem::_linkTone( ColorItem& other, int percent, int grayLevel )
 726 {
 727     if ( !_linkSrc )
 728     {
 729         other._listeners.push_back(this);
 730         _linkIsTone = true;
 731         _linkPercent = percent;
 732         if ( _linkPercent > 100 )
 733             _linkPercent = 100;
 734         if ( _linkPercent < 0 )
 735             _linkPercent = 0;
 736         _linkGray = grayLevel;
 737         _linkSrc = &other;
 738
 739         ColorItem::_colorDefChanged(&other);
 740     }
 741 }
 742
 743
 744 void _loadPaletteFile( gchar const *filename )
 745 {
 746     char block[1024];
 747     FILE *f = Inkscape::IO::fopen_utf8name( filename, "r" );
 748     if ( f ) {
 749         char* result = fgets( block, sizeof(block), f );
 750         if ( result ) {
 751             if ( strncmp( "GIMP Palette", block, 12 ) == 0 ) {
 752                 bool inHeader = true;
 753                 bool hasErr = false;
 754
 755                 JustForNow *onceMore = new JustForNow();
 756
 757                 do {
 758                     result = fgets( block, sizeof(block), f );
 759                     block[sizeof(block) - 1] = 0;
 760                     if ( result ) {
 761                         if ( block[0] == '#' ) {
 762                             // ignore comment
 763                         } else {
 764                             char *ptr = block;
 765                             // very simple check for header versus entry
 766                             while ( *ptr == ' ' || *ptr == '\t' ) {
 767                                 ptr++;
 768                             }
 769                             if ( *ptr == 0 ) {
 770                                 // blank line. skip it.
 771                             } else if ( '0' <= *ptr && *ptr <= '9' ) {
 772                                 // should be an entry link
 773                                 inHeader = false;
 774                                 ptr = block;
 775                                 Glib::ustring name("");
 776                                 int r = 0;
 777                                 int g = 0;
 778                                 int b = 0;
 779                                 skipWhitespace(ptr);
 780                                 if ( *ptr ) {
 781                                     hasErr = parseNum(ptr, r);
 782                                     if ( !hasErr ) {
 783                                         skipWhitespace(ptr);
 784                                         hasErr = parseNum(ptr, g);
 785                                     }
 786                                     if ( !hasErr ) {
 787                                         skipWhitespace(ptr);
 788                                         hasErr = parseNum(ptr, b);
 789                                     }
 790                                     if ( !hasErr && *ptr ) {
 791                                         char* n = trim(ptr);
 792                                         if (n != NULL) {
 793                                             name = n;
 794                                         }
 795                                     }
 796                                     if ( !hasErr ) {
 797                                         // Add the entry now
 798                                         Glib::ustring nameStr(name);
 799                                         ColorItem* item = new ColorItem( r, g, b, nameStr );
 800                                         onceMore->_colors.push_back(item);
 801                                     }
 802                                 } else {
 803                                     hasErr = true;
 804                                 }
 805                             } else {
 806                                 if ( !inHeader ) {
 807                                     // Hmmm... probably bad. Not quite the format we want?
 808                                     hasErr = true;
 809                                 } else {
 810                                     char* sep = strchr(result, ':');
 811                                     if ( sep ) {
 812                                         *sep = 0;
 813                                         char* val = trim(sep + 1);
 814                                         char* name = trim(result);
 815                                         if ( *name ) {
 816                                             if ( strcmp( "Name", name ) == 0 )
 817                                             {
 818                                                 onceMore->_name = val;
 819                                             }
 820                                             else if ( strcmp( "Columns", name ) == 0 )
 821                                             {
 822                                                 gchar* endPtr = 0;
 823                                                 guint64 numVal = g_ascii_strtoull( val, &endPtr, 10 );
 824                                                 if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 825                                                     // overflow
 826                                                 } else if ( (numVal == 0) && (endPtr == val) ) {
 827                                                     // failed conversion
 828                                                 } else {
 829                                                     onceMore->_prefWidth = numVal;
 830                                                 }
 831                                             }
 832                                         } else {
 833                                             // error
 834                                             hasErr = true;
 835                                         }
 836                                     } else {
 837                                         // error
 838                                         hasErr = true;
 839                                     }
 840                                 }
 841                             }
 842                         }
 843                     }
 844                 } while ( result && !hasErr );
 845                 if ( !hasErr ) {
 846                     possible.push_back(onceMore);
 847 #if ENABLE_MAGIC_COLORS
 848                     ColorItem::_wireMagicColors( onceMore );
 849 #endif // ENABLE_MAGIC_COLORS
 850                 } else {
 851                     delete onceMore;
 852                 }
 853             }
 854         }
 855
 856         fclose(f);
 857     }
 858 }
 859
 860 static void loadEmUp()
 861 {
 862     static bool beenHere = false;
 863     if ( !beenHere ) {
 864         beenHere = true;
 865
 866         std::list<gchar *> sources;
 867         sources.push_back( profile_path("palettes") );
 868         sources.push_back( g_strdup(INKSCAPE_PALETTESDIR) );
 869         sources.push_back( g_strdup(CREATE_PALETTESDIR) );
 870
 871         // Use this loop to iterate through a list of possible document locations.
 872         while (!sources.empty()) {
 873             gchar *dirname = sources.front();
 874
 875             if ( Inkscape::IO::file_test( dirname, (GFileTest)(G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR) ) ) {
 876                 GError *err = 0;
 877                 GDir *directory = g_dir_open(dirname, 0, &err);
 878                 if (!directory) {
 879                     gchar *safeDir = Inkscape::IO::sanitizeString(dirname);
 880                     g_warning(_("Palettes directory (%s) is unavailable."), safeDir);
 881                     g_free(safeDir);
 882                 } else {
 883                     gchar *filename = 0;
 884                     while ((filename = (gchar *)g_dir_read_name(directory)) != NULL) {
 885                         gchar* lower = g_ascii_strdown( filename, -1 );
 886 //                        if ( g_str_has_suffix(lower, ".gpl") ) {
 887                             gchar* full = g_build_filename(dirname, filename, NULL);
 888                             if ( !Inkscape::IO::file_test( full, (GFileTest)(G_FILE_TEST_IS_DIR ) ) ) {
 889                                 _loadPaletteFile(full);
 890                             }
 891                             g_free(full);
 892 //                      }
 893                         g_free(lower);
 894                     }
 895                     g_dir_close(directory);
 896                 }
 897             }
 898
 899             // toss the dirname
 900             g_free(dirname);
 901             sources.pop_front();
 902         }
 903     }
 904 }
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914 SwatchesPanel& SwatchesPanel::getInstance()
 915 {
 916     if ( !instance ) {
 917         instance = new SwatchesPanel();
 918     }
 919
 920     return *instance;
 921 }
 922
 923
 924
 925 /**
 926  * Constructor
 927  */
 928 SwatchesPanel::SwatchesPanel(gchar const* prefsPath) :
 929     Inkscape::UI::Widget::Panel( Glib::ustring(), prefsPath, true ),
 930     _holder(0)
 931 {
 932     Gtk::RadioMenuItem* hotItem = 0;
 933     _holder = new PreviewHolder();
 934     loadEmUp();
 935
 936     if ( !possible.empty() ) {
 937         JustForNow* first = 0;
 938         gchar const* targetName = 0;
 939         if ( _prefs_path ) {
 940             targetName = prefs_get_string_attribute( _prefs_path, "palette" );
 941             if ( targetName ) {
 942                 for ( std::vector<JustForNow*>::iterator iter = possible.begin(); iter != possible.end(); ++iter ) {
 943                     if ( (*iter)->_name == targetName ) {
 944                         first = *iter;
 945                         break;
 946                     }
 947                 }
 948             }
 949         }
 950
 951         if ( !first ) {
 952             first = possible.front();
 953         }
 954
 955         if ( first->_prefWidth > 0 ) {
 956             _holder->setColumnPref( first->_prefWidth );
 957         }
 958         _holder->freezeUpdates();
 959         for ( std::vector<ColorItem*>::iterator it = first->_colors.begin(); it != first->_colors.end(); it++ ) {
 960             _holder->addPreview(*it);
 961         }
 962         _holder->thawUpdates();
 963
 964         Gtk::RadioMenuItem::Group groupOne;
 965         int i = 0;
 966         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end(); it++ ) {
 967             JustForNow* curr = *it;
 968             Gtk::RadioMenuItem* single = manage(new Gtk::RadioMenuItem(groupOne, curr->_name));
 969             if ( curr == first ) {
 970                 hotItem = single;
 971             }
 972             _regItem( single, 3, i );
 973             i++;
 974         }
 975
 976     }
 977
 978
 979     _getContents()->pack_start(*_holder, Gtk::PACK_EXPAND_WIDGET);
 980     _setTargetFillable(_holder);
 981
 982     show_all_children();
 983
 984     restorePanelPrefs();
 985     if ( hotItem ) {
 986         hotItem->set_active();
 987     }
 988 }
 989
 990 SwatchesPanel::~SwatchesPanel()
 991 {
 992 }
 993
 994 void SwatchesPanel::setOrientation( Gtk::AnchorType how )
 995 {
 996     // Must call the parent class or bad things might happen
 997     Inkscape::UI::Widget::Panel::setOrientation( how );
 998
 999     if ( _holder )
1000     {
1001         _holder->setOrientation( Gtk::ANCHOR_SOUTH );
1002     }
1003 }
1004
1005 void SwatchesPanel::_handleAction( int setId, int itemId )
1006 {
1007     switch( setId ) {
1008         case 3:
1009         {
1010             if ( itemId >= 0 && itemId < static_cast<int>(possible.size()) ) {
1011                 _holder->clear();
1012                 JustForNow* curr = possible[itemId];
1013
1014                 if ( _prefs_path ) {
1015                     prefs_set_string_attribute( _prefs_path, "palette", curr->_name.c_str() );
1016                 }
1017
1018                 if ( curr->_prefWidth > 0 ) {
1019                     _holder->setColumnPref( curr->_prefWidth );
1020                 }
1021                 _holder->freezeUpdates();
1022                 for ( std::vector<ColorItem*>::iterator it = curr->_colors.begin(); it != curr->_colors.end(); it++ ) {
1023                     _holder->addPreview(*it);
1024                 }
1025                 _holder->thawUpdates();
1026             }
1027         }
1028         break;
1029     }
1030 }
1031
1032 } //namespace Dialogs
1033 } //namespace UI
1034 } //namespace Inkscape
1035
1036
1037 /*
1038   Local Variables:
1039   mode:c++
1040   c-file-style:"stroustrup"
1041   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1042   indent-tabs-mode:nil
1043   fill-column:99
1044   End:
1045 */
1046 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :