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                                 if(event->state & GDK_SHIFT_MASK)
 228                                         item->buttonClicked(true);      /* the button was pressed with shift held down. set the stroke */
 229                 else item->buttonClicked(false);
 230                 return TRUE; /* we handled this */
 231             }
 232             else if (event->button == 3)
 233             {
 234                 item->buttonClicked(true);
 235                 return TRUE; /* we handled this */
 236             }
 237         }
 238     }
 239
 240     return FALSE; /* we did not handle this */
 241 }
 242
 243 static void dieDieDie( GtkObject *obj, gpointer user_data )
 244 {
 245     g_message("die die die %p  %p", obj, user_data );
 246 }
 247
 248 static const GtkTargetEntry destColorTargets[] = {
 249 #if ENABLE_MAGIC_COLORS
 250 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 251     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 252 #endif // ENABLE_MAGIC_COLORS
 253     {"application/x-color", 0, APP_X_COLOR},
 254 };
 255
 256 #include "color.h" // for SP_RGBA32_U_COMPOSE
 257
 258 void ColorItem::_dropDataIn( GtkWidget *widget,
 259                              GdkDragContext *drag_context,
 260                              gint x, gint y,
 261                              GtkSelectionData *data,
 262                              guint info,
 263                              guint event_time,
 264                              gpointer user_data)
 265 {
 266 //     g_message("    droppy droppy   %d", info);
 267      switch (info) {
 268          case APP_X_INKY_COLOR:
 269          {
 270              if ( data->length >= 8 ) {
 271                  // Careful about endian issues.
 272                  guint16* dataVals = (guint16*)data->data;
 273                  if ( user_data ) {
 274                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 275                      if ( item->def.isEditable() ) {
 276                          // Shove on in the new value
 277                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 278                      }
 279                  }
 280              }
 281              break;
 282          }
 283          case APP_X_COLOR:
 284          {
 285              if ( data->length == 8 ) {
 286                  // Careful about endian issues.
 287                  guint16* dataVals = (guint16*)data->data;
 288 //                  {
 289 //                      gchar c[64] = {0};
 290 //                      sp_svg_write_color( c, 64,
 291 //                                          SP_RGBA32_U_COMPOSE(
 292 //                                              0x0ff & (dataVals[0] >> 8),
 293 //                                              0x0ff & (dataVals[1] >> 8),
 294 //                                              0x0ff & (dataVals[2] >> 8),
 295 //                                              0xff // can't have transparency in the color itself
 296 //                                              //0x0ff & (data->data[3] >> 8),
 297 //                                              ));
 298 //                  }
 299                  if ( user_data ) {
 300                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 301                      if ( item->def.isEditable() ) {
 302                          // Shove on in the new value
 303                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 304                      }
 305                  }
 306              }
 307              break;
 308          }
 309          default:
 310              g_message("unknown drop type");
 311      }
 312
 313 }
 314
 315 static bool bruteForce( SPDocument* document, Inkscape::XML::Node* node, Glib::ustring const& match, int r, int g, int b )
 316 {
 317     bool changed = false;
 318
 319     if ( node ) {
 320         gchar const * val = node->attribute("inkscape:x-fill-tag");
 321         if ( val  && (match == val) ) {
 322             SPObject *obj = document->getObjectByRepr( node );
 323
 324             gchar c[64] = {0};
 325             sp_svg_write_color( c, 64, SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 326             SPCSSAttr *css = sp_repr_css_attr_new();
 327             sp_repr_css_set_property( css, "fill", c );
 328
 329             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 330             ((SPItem*)obj)->updateRepr();
 331
 332             changed = true;
 333         }
 334
 335         val = node->attribute("inkscape:x-stroke-tag");
 336         if ( val  && (match == val) ) {
 337             SPObject *obj = document->getObjectByRepr( node );
 338
 339             gchar c[64] = {0};
 340             sp_svg_write_color( c, 64, SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 341             SPCSSAttr *css = sp_repr_css_attr_new();
 342             sp_repr_css_set_property( css, "stroke", c );
 343
 344             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 345             ((SPItem*)obj)->updateRepr();
 346
 347             changed = true;
 348         }
 349
 350         Inkscape::XML::Node* first = node->firstChild();
 351         changed |= bruteForce( document, first, match, r, g, b );
 352
 353         changed |= bruteForce( document, node->next(), match, r, g, b );
 354     }
 355
 356     return changed;
 357 }
 358
 359 void ColorItem::_colorDefChanged(void* data)
 360 {
 361     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 362     if ( item ) {
 363         for ( std::vector<Gtk::Widget*>::iterator it =  item->_previews.begin(); it != item->_previews.end(); ++it ) {
 364             Gtk::Widget* widget = *it;
 365             if ( IS_EEK_PREVIEW(widget->gobj()) ) {
 366                 EekPreview * preview = EEK_PREVIEW(widget->gobj());
 367                 eek_preview_set_color( preview,
 368                                        (item->def.getR() << 8) | item->def.getR(),
 369                                        (item->def.getG() << 8) | item->def.getG(),
 370                                        (item->def.getB() << 8) | item->def.getB() );
 371
 372                 eek_preview_set_linked( preview, (LinkType)((item->_linkSrc ? PREVIEW_LINK_IN:0)
 373                                                             | (item->_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 374                                                             | (item->_isLive ? PREVIEW_LINK_OTHER:0)) );
 375
 376                 widget->queue_draw();
 377             }
 378         }
 379
 380         for ( std::vector<ColorItem*>::iterator it = item->_listeners.begin(); it != item->_listeners.end(); ++it ) {
 381             guint r = item->def.getR();
 382             guint g = item->def.getG();
 383             guint b = item->def.getB();
 384
 385             if ( (*it)->_linkIsTone ) {
 386                 r = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 387                 g = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 388                 b = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 389             } else {
 390                 r = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 391                 g = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 392                 b = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 393             }
 394
 395             (*it)->def.setRGB( r, g, b );
 396         }
 397
 398
 399         // Look for objects using this color
 400         {
 401             SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 402             if ( desktop ) {
 403                 SPDocument* document = sp_desktop_document( desktop );
 404                 Inkscape::XML::Node *rroot =  sp_document_repr_root( document );
 405                 if ( rroot ) {
 406
 407                     // Find where this thing came from
 408                     Glib::ustring paletteName;
 409                     bool found = false;
 410                     int index = 0;
 411                     for ( std::vector<JustForNow*>::iterator it2 = possible.begin(); it2 != possible.end() && !found; ++it2 ) {
 412                         JustForNow* curr = *it2;
 413                         index = 0;
 414                         for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 415                             if ( item == *zz ) {
 416                                 found = true;
 417                                 paletteName = curr->_name;
 418                                 break;
 419                             } else {
 420                                 index++;
 421                             }
 422                         }
 423                     }
 424
 425                     if ( !paletteName.empty() ) {
 426                         gchar* str = g_strdup_printf("%d|", index);
 427                         paletteName.insert( 0, str );
 428                         g_free(str);
 429                         str = 0;
 430
 431                         if ( bruteForce( document, rroot, paletteName, item->def.getR(), item->def.getG(), item->def.getB() ) ) {
 432                             sp_document_done( document , SP_VERB_DIALOG_SWATCHES,
 433                                               _("Change color definition"));
 434                         }
 435                     }
 436                 }
 437             }
 438         }
 439     }
 440 }
 441
 442
 443 Gtk::Widget* ColorItem::getPreview(PreviewStyle style, ViewType view, Inkscape::IconSize size)
 444 {
 445     Gtk::Widget* widget = 0;
 446     if ( style == PREVIEW_STYLE_BLURB ) {
 447         Gtk::Label *lbl = new Gtk::Label(def.descr);
 448         lbl->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
 449         widget = lbl;
 450     } else {
 451         Glib::ustring blank("          ");
 452         if ( size == Inkscape::ICON_SIZE_MENU || size == Inkscape::ICON_SIZE_DECORATION ) {
 453             blank = " ";
 454         }
 455
 456         GtkWidget* eekWidget = eek_preview_new();
 457         EekPreview * preview = EEK_PREVIEW(eekWidget);
 458         Gtk::Widget* newBlot = Glib::wrap(eekWidget);
 459
 460         eek_preview_set_color( preview, (def.getR() << 8) | def.getR(), (def.getG() << 8) | def.getG(), (def.getB() << 8) | def.getB());
 461
 462         eek_preview_set_details( preview, (::PreviewStyle)style, (::ViewType)view, (::GtkIconSize)size );
 463         eek_preview_set_linked( preview, (LinkType)((_linkSrc ? PREVIEW_LINK_IN:0)
 464                                                     | (_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 465                                                     | (_isLive ? PREVIEW_LINK_OTHER:0)) );
 466
 467         def.addCallback( _colorDefChanged, this );
 468
 469         GValue val = {0, {{0}, {0}}};
 470         g_value_init( &val, G_TYPE_BOOLEAN );
 471         g_value_set_boolean( &val, FALSE );
 472         g_object_set_property( G_OBJECT(preview), "focus-on-click", &val );
 473
 474 /*
 475         Gtk::Button *btn = new Gtk::Button(blank);
 476         Gdk::Color color;
 477         color.set_rgb((_r << 8)|_r, (_g << 8)|_g, (_b << 8)|_b);
 478         btn->modify_bg(Gtk::STATE_NORMAL, color);
 479         btn->modify_bg(Gtk::STATE_ACTIVE, color);
 480         btn->modify_bg(Gtk::STATE_PRELIGHT, color);
 481         btn->modify_bg(Gtk::STATE_SELECTED, color);
 482
 483         Gtk::Widget* newBlot = btn;
 484 */
 485
 486         tips.set_tip((*newBlot), def.descr);
 487
 488 /*
 489         newBlot->signal_clicked().connect( sigc::mem_fun(*this, &ColorItem::buttonClicked) );
 490
 491         sigc::signal<void> type_signal_something;
 492 */
 493         g_signal_connect( G_OBJECT(newBlot->gobj()),
 494                           "button-release-event",
 495                           G_CALLBACK(onButtonPressed),
 496                           this);
 497
 498         gtk_drag_source_set( GTK_WIDGET(newBlot->gobj()),
 499                              GDK_BUTTON1_MASK,
 500                              sourceColorEntries,
 501                              G_N_ELEMENTS(sourceColorEntries),
 502                              GdkDragAction(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
 503
 504         g_signal_connect( G_OBJECT(newBlot->gobj()),
 505                           "drag-data-get",
 506                           G_CALLBACK(ColorItem::_dragGetColorData),
 507                           this);
 508
 509         g_signal_connect( G_OBJECT(newBlot->gobj()),
 510                           "drag-begin",
 511                           G_CALLBACK(dragBegin),
 512                           this );
 513
 514 //         g_signal_connect( G_OBJECT(newBlot->gobj()),
 515 //                           "drag-drop",
 516 //                           G_CALLBACK(dragDropColorData),
 517 //                           this);
 518
 519         if ( def.isEditable() )
 520         {
 521             gtk_drag_dest_set( GTK_WIDGET(newBlot->gobj()),
 522                                GTK_DEST_DEFAULT_ALL,
 523                                destColorTargets,
 524                                G_N_ELEMENTS(destColorTargets),
 525                                GdkDragAction(GDK_ACTION_COPY | GDK_ACTION_MOVE) );
 526
 527
 528             g_signal_connect( G_OBJECT(newBlot->gobj()),
 529                               "drag-data-received",
 530                               G_CALLBACK(_dropDataIn),
 531                               this );
 532         }
 533
 534         g_signal_connect( G_OBJECT(newBlot->gobj()),
 535                           "destroy",
 536                           G_CALLBACK(dieDieDie),
 537                           this);
 538
 539
 540         widget = newBlot;
 541     }
 542
 543     _previews.push_back( widget );
 544
 545     return widget;
 546 }
 547
 548 void ColorItem::buttonClicked(bool secondary)
 549 {
 550     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 551     if (desktop) {
 552         char const * attrName = secondary ? "stroke" : "fill";
 553         guint32 rgba = (def.getR() << 24) | (def.getG() << 16) | (def.getB() << 8) | 0xff;
 554         gchar c[64];
 555         sp_svg_write_color(c, 64, rgba);
 556
 557         SPCSSAttr *css = sp_repr_css_attr_new();
 558         sp_repr_css_set_property( css, attrName, c );
 559         sp_desktop_set_style(desktop, css);
 560
 561         sp_repr_css_attr_unref(css);
 562         sp_document_done (sp_desktop_document (desktop), SP_VERB_DIALOG_SWATCHES,
 563                           secondary? _("Set stroke color from swatch") : _("Set fill color from swatch"));
 564     }
 565 }
 566
 567
 568
 569
 570 static char* trim( char* str ) {
 571     char* ret = str;
 572     while ( *str && (*str == ' ' || *str == '\t') ) {
 573         str++;
 574     }
 575     ret = str;
 576     while ( *str ) {
 577         str++;
 578     }
 579     str--;
 580     while ( str > ret && ( *str == ' ' || *str == '\t' ) || *str == '\r' || *str == '\n' ) {
 581         *str-- = 0;
 582     }
 583     return ret;
 584 }
 585
 586 void skipWhitespace( char*& str ) {
 587     while ( *str == ' ' || *str == '\t' ) {
 588         str++;
 589     }
 590 }
 591
 592 bool parseNum( char*& str, int& val ) {
 593     val = 0;
 594     while ( '0' <= *str && *str <= '9' ) {
 595         val = val * 10 + (*str - '0');
 596         str++;
 597     }
 598     bool retval = !(*str == 0 || *str == ' ' || *str == '\t' || *str == '\r' || *str == '\n');
 599     return retval;
 600 }
 601
 602
 603 static bool getBlock( std::string& dst, guchar ch, std::string const str )
 604 {
 605     bool good = false;
 606     std::string::size_type pos = str.find(ch);
 607     if ( pos != std::string::npos )
 608     {
 609         std::string::size_type pos2 = str.find( '(', pos );
 610         if ( pos2 != std::string::npos ) {
 611             std::string::size_type endPos = str.find( ')', pos2 );
 612             if ( endPos != std::string::npos ) {
 613                 dst = str.substr( pos2 + 1, (endPos - pos2 - 1) );
 614                 good = true;
 615             }
 616         }
 617     }
 618     return good;
 619 }
 620
 621 static bool popVal( guint64& numVal, std::string& str )
 622 {
 623     bool good = false;
 624     std::string::size_type endPos = str.find(',');
 625     if ( endPos == std::string::npos ) {
 626         endPos = str.length();
 627     }
 628
 629     if ( endPos != std::string::npos && endPos > 0 ) {
 630         std::string xxx = str.substr( 0, endPos );
 631         const gchar* ptr = xxx.c_str();
 632         gchar* endPtr = 0;
 633         numVal = g_ascii_strtoull( ptr, &endPtr, 10 );
 634         if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 635             // overflow
 636         } else if ( (numVal == 0) && (endPtr == ptr) ) {
 637             // failed conversion
 638         } else {
 639             good = true;
 640             str.erase( 0, endPos + 1 );
 641         }
 642     }
 643
 644     return good;
 645 }
 646
 647 void ColorItem::_wireMagicColors( void* p )
 648 {
 649     JustForNow* onceMore = reinterpret_cast<JustForNow*>(p);
 650     if ( onceMore )
 651     {
 652         for ( std::vector<ColorItem*>::iterator it = onceMore->_colors.begin(); it != onceMore->_colors.end(); ++it )
 653         {
 654             std::string::size_type pos = (*it)->def.descr.find("*{");
 655             if ( pos != std::string::npos )
 656             {
 657                 std::string subby = (*it)->def.descr.substr( pos + 2 );
 658                 std::string::size_type endPos = subby.find("}*");
 659                 if ( endPos != std::string::npos )
 660                 {
 661                     subby.erase( endPos );
 662                     //g_message("FOUND MAGIC at '%s'", (*it)->def.descr.c_str());
 663                     //g_message("               '%s'", subby.c_str());
 664
 665                     if ( subby.find('E') != std::string::npos )
 666                     {
 667                         (*it)->def.setEditable( true );
 668                     }
 669
 670                     if ( subby.find('L') != std::string::npos )
 671                     {
 672                         (*it)->_isLive = true;
 673                     }
 674
 675                     std::string part;
 676                     // Tint. index + 1 more val.
 677                     if ( getBlock( part, 'T', subby ) ) {
 678                         guint64 colorIndex = 0;
 679                         if ( popVal( colorIndex, part ) ) {
 680                             guint64 percent = 0;
 681                             if ( popVal( percent, part ) ) {
 682                                 (*it)->_linkTint( *(onceMore->_colors[colorIndex]), percent );
 683                             }
 684                         }
 685                     }
 686
 687                     // Shade/tone. index + 1 or 2 more val.
 688                     if ( getBlock( part, 'S', subby ) ) {
 689                         guint64 colorIndex = 0;
 690                         if ( popVal( colorIndex, part ) ) {
 691                             guint64 percent = 0;
 692                             if ( popVal( percent, part ) ) {
 693                                 guint64 grayLevel = 0;
 694                                 if ( !popVal( grayLevel, part ) ) {
 695                                     grayLevel = 0;
 696                                 }
 697                                 (*it)->_linkTone( *(onceMore->_colors[colorIndex]), percent, grayLevel );
 698                             }
 699                         }
 700                     }
 701
 702                 }
 703             }
 704         }
 705     }
 706 }
 707
 708
 709 void ColorItem::_linkTint( ColorItem& other, int percent )
 710 {
 711     if ( !_linkSrc )
 712     {
 713         other._listeners.push_back(this);
 714         _linkIsTone = false;
 715         _linkPercent = percent;
 716         if ( _linkPercent > 100 )
 717             _linkPercent = 100;
 718         if ( _linkPercent < 0 )
 719             _linkPercent = 0;
 720         _linkGray = 0;
 721         _linkSrc = &other;
 722
 723         ColorItem::_colorDefChanged(&other);
 724     }
 725 }
 726
 727 void ColorItem::_linkTone( ColorItem& other, int percent, int grayLevel )
 728 {
 729     if ( !_linkSrc )
 730     {
 731         other._listeners.push_back(this);
 732         _linkIsTone = true;
 733         _linkPercent = percent;
 734         if ( _linkPercent > 100 )
 735             _linkPercent = 100;
 736         if ( _linkPercent < 0 )
 737             _linkPercent = 0;
 738         _linkGray = grayLevel;
 739         _linkSrc = &other;
 740
 741         ColorItem::_colorDefChanged(&other);
 742     }
 743 }
 744
 745
 746 void _loadPaletteFile( gchar const *filename )
 747 {
 748     char block[1024];
 749     FILE *f = Inkscape::IO::fopen_utf8name( filename, "r" );
 750     if ( f ) {
 751         char* result = fgets( block, sizeof(block), f );
 752         if ( result ) {
 753             if ( strncmp( "GIMP Palette", block, 12 ) == 0 ) {
 754                 bool inHeader = true;
 755                 bool hasErr = false;
 756
 757                 JustForNow *onceMore = new JustForNow();
 758
 759                 do {
 760                     result = fgets( block, sizeof(block), f );
 761                     block[sizeof(block) - 1] = 0;
 762                     if ( result ) {
 763                         if ( block[0] == '#' ) {
 764                             // ignore comment
 765                         } else {
 766                             char *ptr = block;
 767                             // very simple check for header versus entry
 768                             while ( *ptr == ' ' || *ptr == '\t' ) {
 769                                 ptr++;
 770                             }
 771                             if ( *ptr == 0 ) {
 772                                 // blank line. skip it.
 773                             } else if ( '0' <= *ptr && *ptr <= '9' ) {
 774                                 // should be an entry link
 775                                 inHeader = false;
 776                                 ptr = block;
 777                                 Glib::ustring name("");
 778                                 int r = 0;
 779                                 int g = 0;
 780                                 int b = 0;
 781                                 skipWhitespace(ptr);
 782                                 if ( *ptr ) {
 783                                     hasErr = parseNum(ptr, r);
 784                                     if ( !hasErr ) {
 785                                         skipWhitespace(ptr);
 786                                         hasErr = parseNum(ptr, g);
 787                                     }
 788                                     if ( !hasErr ) {
 789                                         skipWhitespace(ptr);
 790                                         hasErr = parseNum(ptr, b);
 791                                     }
 792                                     if ( !hasErr && *ptr ) {
 793                                         char* n = trim(ptr);
 794                                         if (n != NULL) {
 795                                             name = n;
 796                                         }
 797                                     }
 798                                     if ( !hasErr ) {
 799                                         // Add the entry now
 800                                         Glib::ustring nameStr(name);
 801                                         ColorItem* item = new ColorItem( r, g, b, nameStr );
 802                                         onceMore->_colors.push_back(item);
 803                                     }
 804                                 } else {
 805                                     hasErr = true;
 806                                 }
 807                             } else {
 808                                 if ( !inHeader ) {
 809                                     // Hmmm... probably bad. Not quite the format we want?
 810                                     hasErr = true;
 811                                 } else {
 812                                     char* sep = strchr(result, ':');
 813                                     if ( sep ) {
 814                                         *sep = 0;
 815                                         char* val = trim(sep + 1);
 816                                         char* name = trim(result);
 817                                         if ( *name ) {
 818                                             if ( strcmp( "Name", name ) == 0 )
 819                                             {
 820                                                 onceMore->_name = val;
 821                                             }
 822                                             else if ( strcmp( "Columns", name ) == 0 )
 823                                             {
 824                                                 gchar* endPtr = 0;
 825                                                 guint64 numVal = g_ascii_strtoull( val, &endPtr, 10 );
 826                                                 if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 827                                                     // overflow
 828                                                 } else if ( (numVal == 0) && (endPtr == val) ) {
 829                                                     // failed conversion
 830                                                 } else {
 831                                                     onceMore->_prefWidth = numVal;
 832                                                 }
 833                                             }
 834                                         } else {
 835                                             // error
 836                                             hasErr = true;
 837                                         }
 838                                     } else {
 839                                         // error
 840                                         hasErr = true;
 841                                     }
 842                                 }
 843                             }
 844                         }
 845                     }
 846                 } while ( result && !hasErr );
 847                 if ( !hasErr ) {
 848                     possible.push_back(onceMore);
 849 #if ENABLE_MAGIC_COLORS
 850                     ColorItem::_wireMagicColors( onceMore );
 851 #endif // ENABLE_MAGIC_COLORS
 852                 } else {
 853                     delete onceMore;
 854                 }
 855             }
 856         }
 857
 858         fclose(f);
 859     }
 860 }
 861
 862 static void loadEmUp()
 863 {
 864     static bool beenHere = false;
 865     if ( !beenHere ) {
 866         beenHere = true;
 867
 868         std::list<gchar *> sources;
 869         sources.push_back( profile_path("palettes") );
 870         sources.push_back( g_strdup(INKSCAPE_PALETTESDIR) );
 871         sources.push_back( g_strdup(CREATE_PALETTESDIR) );
 872
 873         // Use this loop to iterate through a list of possible document locations.
 874         while (!sources.empty()) {
 875             gchar *dirname = sources.front();
 876
 877             if ( Inkscape::IO::file_test( dirname, (GFileTest)(G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR) ) ) {
 878                 GError *err = 0;
 879                 GDir *directory = g_dir_open(dirname, 0, &err);
 880                 if (!directory) {
 881                     gchar *safeDir = Inkscape::IO::sanitizeString(dirname);
 882                     g_warning(_("Palettes directory (%s) is unavailable."), safeDir);
 883                     g_free(safeDir);
 884                 } else {
 885                     gchar *filename = 0;
 886                     while ((filename = (gchar *)g_dir_read_name(directory)) != NULL) {
 887                         gchar* lower = g_ascii_strdown( filename, -1 );
 888 //                        if ( g_str_has_suffix(lower, ".gpl") ) {
 889                             gchar* full = g_build_filename(dirname, filename, NULL);
 890                             if ( !Inkscape::IO::file_test( full, (GFileTest)(G_FILE_TEST_IS_DIR ) ) ) {
 891                                 _loadPaletteFile(full);
 892                             }
 893                             g_free(full);
 894 //                      }
 895                         g_free(lower);
 896                     }
 897                     g_dir_close(directory);
 898                 }
 899             }
 900
 901             // toss the dirname
 902             g_free(dirname);
 903             sources.pop_front();
 904         }
 905     }
 906 }
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916 SwatchesPanel& SwatchesPanel::getInstance()
 917 {
 918     if ( !instance ) {
 919         instance = new SwatchesPanel();
 920     }
 921
 922     return *instance;
 923 }
 924
 925
 926
 927 /**
 928  * Constructor
 929  */
 930 SwatchesPanel::SwatchesPanel(gchar const* prefsPath) :
 931     Inkscape::UI::Widget::Panel( Glib::ustring(), prefsPath, true ),
 932     _holder(0)
 933 {
 934     Gtk::RadioMenuItem* hotItem = 0;
 935     _holder = new PreviewHolder();
 936     loadEmUp();
 937
 938     if ( !possible.empty() ) {
 939         JustForNow* first = 0;
 940         gchar const* targetName = 0;
 941         if ( _prefs_path ) {
 942             targetName = prefs_get_string_attribute( _prefs_path, "palette" );
 943             if ( targetName ) {
 944                 for ( std::vector<JustForNow*>::iterator iter = possible.begin(); iter != possible.end(); ++iter ) {
 945                     if ( (*iter)->_name == targetName ) {
 946                         first = *iter;
 947                         break;
 948                     }
 949                 }
 950             }
 951         }
 952
 953         if ( !first ) {
 954             first = possible.front();
 955         }
 956
 957         if ( first->_prefWidth > 0 ) {
 958             _holder->setColumnPref( first->_prefWidth );
 959         }
 960         _holder->freezeUpdates();
 961         for ( std::vector<ColorItem*>::iterator it = first->_colors.begin(); it != first->_colors.end(); it++ ) {
 962             _holder->addPreview(*it);
 963         }
 964         _holder->thawUpdates();
 965
 966         Gtk::RadioMenuItem::Group groupOne;
 967         int i = 0;
 968         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end(); it++ ) {
 969             JustForNow* curr = *it;
 970             Gtk::RadioMenuItem* single = manage(new Gtk::RadioMenuItem(groupOne, curr->_name));
 971             if ( curr == first ) {
 972                 hotItem = single;
 973             }
 974             _regItem( single, 3, i );
 975             i++;
 976         }
 977
 978     }
 979
 980
 981     _getContents()->pack_start(*_holder, Gtk::PACK_EXPAND_WIDGET);
 982     _setTargetFillable(_holder);
 983
 984     show_all_children();
 985
 986     restorePanelPrefs();
 987     if ( hotItem ) {
 988         hotItem->set_active();
 989     }
 990 }
 991
 992 SwatchesPanel::~SwatchesPanel()
 993 {
 994 }
 995
 996 void SwatchesPanel::setOrientation( Gtk::AnchorType how )
 997 {
 998     // Must call the parent class or bad things might happen
 999     Inkscape::UI::Widget::Panel::setOrientation( how );
1000
1001     if ( _holder )
1002     {
1003         _holder->setOrientation( Gtk::ANCHOR_SOUTH );
1004     }
1005 }
1006
1007 void SwatchesPanel::_handleAction( int setId, int itemId )
1008 {
1009     switch( setId ) {
1010         case 3:
1011         {
1012             if ( itemId >= 0 && itemId < static_cast<int>(possible.size()) ) {
1013                 _holder->clear();
1014                 JustForNow* curr = possible[itemId];
1015
1016                 if ( _prefs_path ) {
1017                     prefs_set_string_attribute( _prefs_path, "palette", curr->_name.c_str() );
1018                 }
1019
1020                 if ( curr->_prefWidth > 0 ) {
1021                     _holder->setColumnPref( curr->_prefWidth );
1022                 }
1023                 _holder->freezeUpdates();
1024                 for ( std::vector<ColorItem*>::iterator it = curr->_colors.begin(); it != curr->_colors.end(); it++ ) {
1025                     _holder->addPreview(*it);
1026                 }
1027                 _holder->thawUpdates();
1028             }
1029         }
1030         break;
1031     }
1032 }
1033
1034 } //namespace Dialogs
1035 } //namespace UI
1036 } //namespace Inkscape
1037
1038
1039 /*
1040   Local Variables:
1041   mode:c++
1042   c-file-style:"stroustrup"
1043   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1044   indent-tabs-mode:nil
1045   fill-column:99
1046   End:
1047 */
1048 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :