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