src/dialogs/swatches.cpp

   1 /*
   2  * A simple panel for color swatches
   3  *
   4  * Authors:
   5  *   Jon A. Cruz
   6  *
   7  * Copyright (C) 2005 Jon A. Cruz
   8  *
   9  * Released under GNU GPL, read the file 'COPYING' for more information
  10  */
  11 #ifdef HAVE_CONFIG_H
  12 # include <config.h>
  13 #endif
  14
  15 #include <errno.h>
  16
  17 #include <gtk/gtkdialog.h> //for GTK_RESPONSE* types
  18 #include <gtk/gtkdnd.h>
  19
  20 #include <glibmm/i18n.h>
  21 #include <gdkmm/pixbuf.h>
  22 #include "inkscape.h"
  23 #include "document.h"
  24 #include "desktop-handles.h"
  25 #include "extension/db.h"
  26 #include "inkscape.h"
  27 #include "svg/svg-color.h"
  28 #include "desktop-style.h"
  29 #include "io/sys.h"
  30 #include "path-prefix.h"
  31 #include "swatches.h"
  32 #include "sp-item.h"
  33
  34 #include "eek-preview.h"
  35
  36 namespace Inkscape {
  37 namespace UI {
  38 namespace Dialogs {
  39
  40 SwatchesPanel* SwatchesPanel::instance = 0;
  41
  42
  43 ColorItem::ColorItem( unsigned int r, unsigned int g, unsigned int b, Glib::ustring& name ) :
  44     def( r, g, b, name ),
  45     _isLive(false),
  46     _linkIsTone(false),
  47     _linkPercent(0),
  48     _linkGray(0),
  49     _linkSrc(0)
  50 {
  51 }
  52
  53 ColorItem::~ColorItem()
  54 {
  55 }
  56
  57 ColorItem::ColorItem(ColorItem const &other) :
  58     Inkscape::UI::Previewable()
  59 {
  60     if ( this != &other ) {
  61         *this = other;
  62     }
  63 }
  64
  65 ColorItem &ColorItem::operator=(ColorItem const &other)
  66 {
  67     if ( this != &other ) {
  68         def = other.def;
  69
  70         // TODO - correct linkage
  71         _linkSrc = other._linkSrc;
  72         g_message("Erk!");
  73     }
  74     return *this;
  75 }
  76
  77
  78 class JustForNow
  79 {
  80 public:
  81     JustForNow() : _prefWidth(0) {}
  82
  83     Glib::ustring _name;
  84     int _prefWidth;
  85     std::vector<ColorItem*> _colors;
  86 };
  87
  88 static std::vector<JustForNow*> possible;
  89
  90
  91
  92 typedef enum {
  93     APP_X_INKY_COLOR_ID = 0,
  94     APP_X_INKY_COLOR = 0,
  95     APP_X_COLOR,
  96     TEXT_DATA
  97 } colorFlavorType;
  98
  99 static const GtkTargetEntry sourceColorEntries[] = {
 100 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 101     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 102     {"application/x-color", 0, APP_X_COLOR},
 103     {"text/plain", 0, TEXT_DATA},
 104 };
 105
 106 void ColorItem::_dragGetColorData( GtkWidget *widget,
 107                                    GdkDragContext *drag_context,
 108                                    GtkSelectionData *data,
 109                                    guint info,
 110                                    guint time,
 111                                    gpointer user_data)
 112 {
 113     static GdkAtom typeXColor = gdk_atom_intern("application/x-color", FALSE);
 114     static GdkAtom typeText = gdk_atom_intern("text/plain", FALSE);
 115
 116     ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 117     if ( info == TEXT_DATA ) {
 118         gchar* tmp = g_strdup_printf("#%02x%02x%02x", item->def.getR(), item->def.getG(), item->def.getB() );
 119
 120         gtk_selection_data_set( data,
 121                                 typeText,
 122                                 8, // format
 123                                 (guchar*)tmp,
 124                                 strlen((const char*)tmp) + 1);
 125         g_free(tmp);
 126         tmp = 0;
 127     } else if ( info == APP_X_INKY_COLOR ) {
 128         Glib::ustring paletteName;
 129
 130         // Find where this thing came from
 131         bool found = false;
 132         int index = 0;
 133         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end() && !found; ++it ) {
 134             JustForNow* curr = *it;
 135             index = 0;
 136             for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 137                 if ( item == *zz ) {
 138                     found = true;
 139                     paletteName = curr->_name;
 140                     break;
 141                 } else {
 142                     index++;
 143                 }
 144             }
 145         }
 146
 147 //         if ( found ) {
 148 //             g_message("Found the color at entry %d in palette '%s'", index, paletteName.c_str() );
 149 //         } else {
 150 //             g_message("Unable to find the color");
 151 //         }
 152         int itemCount = 4 + 2 + 1 + paletteName.length();
 153
 154         guint16* tmp = new guint16[itemCount];
 155         tmp[0] = (item->def.getR() << 8) | item->def.getR();
 156         tmp[1] = (item->def.getG() << 8) | item->def.getG();
 157         tmp[2] = (item->def.getB() << 8) | item->def.getB();
 158         tmp[3] = 0xffff;
 159         tmp[4] = (item->_isLive || !item->_listeners.empty() || (item->_linkSrc != 0) ) ? 1 : 0;
 160
 161         tmp[5] = index;
 162         tmp[6] = paletteName.length();
 163         for ( unsigned int i = 0; i < paletteName.length(); i++ ) {
 164             tmp[7 + i] = paletteName[i];
 165         }
 166         gtk_selection_data_set( data,
 167                                 typeXColor,
 168                                 16, // format
 169                                 reinterpret_cast<const guchar*>(tmp),
 170                                 itemCount * 2);
 171         delete[] tmp;
 172     } else {
 173         guint16 tmp[4];
 174         tmp[0] = (item->def.getR() << 8) | item->def.getR();
 175         tmp[1] = (item->def.getG() << 8) | item->def.getG();
 176         tmp[2] = (item->def.getB() << 8) | item->def.getB();
 177         tmp[3] = 0xffff;
 178         gtk_selection_data_set( data,
 179                                 typeXColor,
 180                                 16, // format
 181                                 reinterpret_cast<const guchar*>(tmp),
 182                                 (3+1) * 2);
 183     }
 184 }
 185
 186 static void dragBegin( GtkWidget *widget, GdkDragContext* dc, gpointer data )
 187 {
 188     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 189     if ( item )
 190     {
 191         Glib::RefPtr<Gdk::Pixbuf> thumb = Gdk::Pixbuf::create( Gdk::COLORSPACE_RGB, false, 8, 32, 24 );
 192         guint32 fillWith = (0xff000000 & (item->def.getR() << 24))
 193                          | (0x00ff0000 & (item->def.getG() << 16))
 194                          | (0x0000ff00 & (item->def.getB() <<  8));
 195         thumb->fill( fillWith );
 196         gtk_drag_set_icon_pixbuf( dc, thumb->gobj(), 0, 0 );
 197     }
 198
 199 }
 200
 201 //"drag-drop"
 202 // gboolean dragDropColorData( GtkWidget *widget,
 203 //                             GdkDragContext *drag_context,
 204 //                             gint x,
 205 //                             gint y,
 206 //                             guint time,
 207 //                             gpointer user_data)
 208 // {
 209 // // TODO finish
 210
 211 //     return TRUE;
 212 // }
 213
 214 static void bouncy( GtkWidget* widget, gpointer callback_data ) {
 215     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 216     if ( item ) {
 217         item->buttonClicked(false);
 218     }
 219 }
 220
 221 static void bouncy2( GtkWidget* widget, gint arg1, gpointer callback_data ) {
 222     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 223     if ( item ) {
 224         item->buttonClicked(true);
 225     }
 226 }
 227
 228 static void dieDieDie( GtkObject *obj, gpointer user_data )
 229 {
 230     g_message("die die die %p  %p", obj, user_data );
 231 }
 232
 233 static const GtkTargetEntry destColorTargets[] = {
 234 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 235     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 236     {"application/x-color", 0, APP_X_COLOR},
 237 };
 238
 239 #include "color.h" // for SP_RGBA32_U_COMPOSE
 240
 241 void ColorItem::_dropDataIn( GtkWidget *widget,
 242                              GdkDragContext *drag_context,
 243                              gint x, gint y,
 244                              GtkSelectionData *data,
 245                              guint info,
 246                              guint event_time,
 247                              gpointer user_data)
 248 {
 249 //     g_message("    droppy droppy   %d", info);
 250      switch (info) {
 251          case APP_X_INKY_COLOR:
 252          {
 253              if ( data->length >= 8 ) {
 254                  // Careful about endian issues.
 255                  guint16* dataVals = (guint16*)data->data;
 256                  if ( user_data ) {
 257                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 258                      if ( item->def.isEditable() ) {
 259                          // Shove on in the new value
 260                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 261                      }
 262                  }
 263              }
 264              break;
 265          }
 266          case APP_X_COLOR:
 267          {
 268              if ( data->length == 8 ) {
 269                  // Careful about endian issues.
 270                  guint16* dataVals = (guint16*)data->data;
 271 //                  {
 272 //                      gchar c[64] = {0};
 273 //                      sp_svg_write_color( c, 64,
 274 //                                          SP_RGBA32_U_COMPOSE(
 275 //                                              0x0ff & (dataVals[0] >> 8),
 276 //                                              0x0ff & (dataVals[1] >> 8),
 277 //                                              0x0ff & (dataVals[2] >> 8),
 278 //                                              0xff // can't have transparency in the color itself
 279 //                                              //0x0ff & (data->data[3] >> 8),
 280 //                                              ));
 281 //                  }
 282                  if ( user_data ) {
 283                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 284                      if ( item->def.isEditable() ) {
 285                          // Shove on in the new value
 286                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 287                      }
 288                  }
 289              }
 290              break;
 291          }
 292          default:
 293              g_message("unknown drop type");
 294      }
 295
 296 }
 297
 298 static bool bruteForce( SPDocument* document, Inkscape::XML::Node* node, Glib::ustring const& match, int r, int g, int b )
 299 {
 300     bool changed = false;
 301
 302     if ( node ) {
 303         gchar const * val = node->attribute("inkscape:x-fill-tag");
 304         if ( val  && (match == val) ) {
 305             SPObject *obj = document->getObjectByRepr( node );
 306
 307             gchar c[64] = {0};
 308             sp_svg_write_color( c, 64, SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 309             SPCSSAttr *css = sp_repr_css_attr_new();
 310             sp_repr_css_set_property( css, "fill", c );
 311
 312             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 313             ((SPItem*)obj)->updateRepr();
 314
 315             changed = true;
 316         }
 317
 318         val = node->attribute("inkscape:x-stroke-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, "stroke", c );
 326
 327             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 328             ((SPItem*)obj)->updateRepr();
 329
 330             changed = true;
 331         }
 332
 333         Inkscape::XML::Node* first = node->firstChild();
 334         changed |= bruteForce( document, first, match, r, g, b );
 335
 336         changed |= bruteForce( document, node->next(), match, r, g, b );
 337     }
 338
 339     return changed;
 340 }
 341
 342 void ColorItem::_colorDefChanged(void* data)
 343 {
 344     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 345     if ( item ) {
 346         for ( std::vector<Gtk::Widget*>::iterator it =  item->_previews.begin(); it != item->_previews.end(); ++it ) {
 347             Gtk::Widget* widget = *it;
 348             if ( IS_EEK_PREVIEW(widget->gobj()) ) {
 349                 EekPreview * preview = EEK_PREVIEW(widget->gobj());
 350                 eek_preview_set_color( preview,
 351                                        (item->def.getR() << 8) | item->def.getR(),
 352                                        (item->def.getG() << 8) | item->def.getG(),
 353                                        (item->def.getB() << 8) | item->def.getB() );
 354
 355                 eek_preview_set_linked( preview, (LinkType)((item->_linkSrc ? PREVIEW_LINK_IN:0)
 356                                                             | (item->_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 357                                                             | (item->_isLive ? PREVIEW_LINK_OTHER:0)) );
 358
 359                 widget->queue_draw();
 360             }
 361         }
 362
 363         for ( std::vector<ColorItem*>::iterator it = item->_listeners.begin(); it != item->_listeners.end(); ++it ) {
 364             guint r = item->def.getR();
 365             guint g = item->def.getG();
 366             guint b = item->def.getB();
 367
 368             if ( (*it)->_linkIsTone ) {
 369                 r = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 370                 g = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 371                 b = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 372             } else {
 373                 r = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 374                 g = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 375                 b = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 376             }
 377
 378             (*it)->def.setRGB( r, g, b );
 379         }
 380
 381
 382         // Look for objects using this color
 383         {
 384             SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 385             if ( desktop ) {
 386                 SPDocument* document = SP_DT_DOCUMENT( desktop );
 387                 Inkscape::XML::Node *rroot =  sp_document_repr_root( document );
 388                 if ( rroot ) {
 389
 390                     // Find where this thing came from
 391                     Glib::ustring paletteName;
 392                     bool found = false;
 393                     int index = 0;
 394                     for ( std::vector<JustForNow*>::iterator it2 = possible.begin(); it2 != possible.end() && !found; ++it2 ) {
 395                         JustForNow* curr = *it2;
 396                         index = 0;
 397                         for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 398                             if ( item == *zz ) {
 399                                 found = true;
 400                                 paletteName = curr->_name;
 401                                 break;
 402                             } else {
 403                                 index++;
 404                             }
 405                         }
 406                     }
 407
 408                     if ( !paletteName.empty() ) {
 409                         gchar* str = g_strdup_printf("%d|", index);
 410                         paletteName.insert( 0, str );
 411                         g_free(str);
 412                         str = 0;
 413
 414                         if ( bruteForce( document, rroot, paletteName, item->def.getR(), item->def.getG(), item->def.getB() ) ) {
 415                             sp_document_done( document );
 416                         }
 417                     }
 418                 }
 419             }
 420         }
 421     }
 422 }
 423
 424
 425 Gtk::Widget* ColorItem::getPreview(PreviewStyle style, ViewType view, Gtk::BuiltinIconSize size)
 426 {
 427     Gtk::Widget* widget = 0;
 428     if ( style == PREVIEW_STYLE_BLURB ) {
 429         Gtk::Label *lbl = new Gtk::Label(def.descr);
 430         lbl->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
 431         widget = lbl;
 432     } else {
 433         Glib::ustring blank("          ");
 434         if ( size == Gtk::ICON_SIZE_MENU ) {
 435             blank = " ";
 436         }
 437
 438         GtkWidget* eekWidget = eek_preview_new();
 439         EekPreview * preview = EEK_PREVIEW(eekWidget);
 440         Gtk::Widget* newBlot = Glib::wrap(eekWidget);
 441
 442         eek_preview_set_color( preview, (def.getR() << 8) | def.getR(), (def.getG() << 8) | def.getG(), (def.getB() << 8) | def.getB());
 443
 444         eek_preview_set_details( preview, (::PreviewStyle)style, (::ViewType)view, (::GtkIconSize)size );
 445         eek_preview_set_linked( preview, (LinkType)((_linkSrc ? PREVIEW_LINK_IN:0)
 446                                                     | (_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 447                                                     | (_isLive ? PREVIEW_LINK_OTHER:0)) );
 448
 449         def.addCallback( _colorDefChanged, this );
 450
 451         GValue val = {0, {{0}, {0}}};
 452         g_value_init( &val, G_TYPE_BOOLEAN );
 453         g_value_set_boolean( &val, FALSE );
 454         g_object_set_property( G_OBJECT(preview), "focus-on-click", &val );
 455
 456 /*
 457         Gtk::Button *btn = new Gtk::Button(blank);
 458         Gdk::Color color;
 459         color.set_rgb((_r << 8)|_r, (_g << 8)|_g, (_b << 8)|_b);
 460         btn->modify_bg(Gtk::STATE_NORMAL, color);
 461         btn->modify_bg(Gtk::STATE_ACTIVE, color);
 462         btn->modify_bg(Gtk::STATE_PRELIGHT, color);
 463         btn->modify_bg(Gtk::STATE_SELECTED, color);
 464
 465         Gtk::Widget* newBlot = btn;
 466 */
 467
 468         tips.set_tip((*newBlot), def.descr);
 469
 470 /*
 471         newBlot->signal_clicked().connect( sigc::mem_fun(*this, &ColorItem::buttonClicked) );
 472
 473         sigc::signal<void> type_signal_something;
 474 */
 475         g_signal_connect( G_OBJECT(newBlot->gobj()),
 476                           "clicked",
 477                           G_CALLBACK(bouncy),
 478                           this);
 479
 480         g_signal_connect( G_OBJECT(newBlot->gobj()),
 481                           "alt-clicked",
 482                           G_CALLBACK(bouncy2),
 483                           this);
 484
 485         gtk_drag_source_set( GTK_WIDGET(newBlot->gobj()),
 486                              GDK_BUTTON1_MASK,
 487                              sourceColorEntries,
 488                              G_N_ELEMENTS(sourceColorEntries),
 489                              GdkDragAction(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
 490
 491         g_signal_connect( G_OBJECT(newBlot->gobj()),
 492                           "drag-data-get",
 493                           G_CALLBACK(ColorItem::_dragGetColorData),
 494                           this);
 495
 496         g_signal_connect( G_OBJECT(newBlot->gobj()),
 497                           "drag-begin",
 498                           G_CALLBACK(dragBegin),
 499                           this );
 500
 501 //         g_signal_connect( G_OBJECT(newBlot->gobj()),
 502 //                           "drag-drop",
 503 //                           G_CALLBACK(dragDropColorData),
 504 //                           this);
 505
 506         if ( def.isEditable() )
 507         {
 508             gtk_drag_dest_set( GTK_WIDGET(newBlot->gobj()),
 509                                GTK_DEST_DEFAULT_ALL,
 510                                destColorTargets,
 511                                G_N_ELEMENTS(destColorTargets),
 512                                GdkDragAction(GDK_ACTION_COPY | GDK_ACTION_MOVE) );
 513
 514
 515             g_signal_connect( G_OBJECT(newBlot->gobj()),
 516                               "drag-data-received",
 517                               G_CALLBACK(_dropDataIn),
 518                               this );
 519         }
 520
 521         g_signal_connect( G_OBJECT(newBlot->gobj()),
 522                           "destroy",
 523                           G_CALLBACK(dieDieDie),
 524                           this);
 525
 526
 527         widget = newBlot;
 528     }
 529
 530     _previews.push_back( widget );
 531
 532     return widget;
 533 }
 534
 535 void ColorItem::buttonClicked(bool secondary)
 536 {
 537     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 538     if (desktop) {
 539         char const * attrName = secondary ? "stroke" : "fill";
 540         guint32 rgba = (def.getR() << 24) | (def.getG() << 16) | (def.getB() << 8) | 0xff;
 541         gchar c[64];
 542         sp_svg_write_color(c, 64, rgba);
 543
 544         SPCSSAttr *css = sp_repr_css_attr_new();
 545         sp_repr_css_set_property( css, attrName, c );
 546         sp_desktop_set_style(desktop, css);
 547
 548         sp_repr_css_attr_unref(css);
 549         sp_document_done (SP_DT_DOCUMENT (desktop));
 550     }
 551 }
 552
 553
 554
 555
 556 static char* trim( char* str ) {
 557     char* ret = str;
 558     while ( *str && (*str == ' ' || *str == '\t') ) {
 559         str++;
 560     }
 561     ret = str;
 562     while ( *str ) {
 563         str++;
 564     }
 565     str--;
 566     while ( str > ret && ( *str == ' ' || *str == '\t' ) || *str == '\r' || *str == '\n' ) {
 567         *str-- = 0;
 568     }
 569     return ret;
 570 }
 571
 572 void skipWhitespace( char*& str ) {
 573     while ( *str == ' ' || *str == '\t' ) {
 574         str++;
 575     }
 576 }
 577
 578 bool parseNum( char*& str, int& val ) {
 579     val = 0;
 580     while ( '0' <= *str && *str <= '9' ) {
 581         val = val * 10 + (*str - '0');
 582         str++;
 583     }
 584     bool retval = !(*str == 0 || *str == ' ' || *str == '\t' || *str == '\r' || *str == '\n');
 585     return retval;
 586 }
 587
 588
 589 static bool getBlock( std::string& dst, guchar ch, std::string const str )
 590 {
 591     bool good = false;
 592     size_t pos = str.find(ch);
 593     if ( pos != std::string::npos )
 594     {
 595         size_t pos2 = str.find( '(', pos );
 596         if ( pos2 != std::string::npos ) {
 597             size_t endPos = str.find( ')', pos2 );
 598             if ( endPos != std::string::npos ) {
 599                 dst = str.substr( pos2 + 1, (endPos - pos2 - 1) );
 600                 good = true;
 601             }
 602         }
 603     }
 604     return good;
 605 }
 606
 607 static bool popVal( guint64& numVal, std::string& str )
 608 {
 609     bool good = false;
 610     size_t endPos = str.find(',');
 611     if ( endPos == std::string::npos ) {
 612         endPos = str.length();
 613     }
 614
 615     if ( endPos != std::string::npos && endPos > 0 ) {
 616         std::string xxx = str.substr( 0, endPos );
 617         const gchar* ptr = xxx.c_str();
 618         gchar* endPtr = 0;
 619         numVal = g_ascii_strtoull( ptr, &endPtr, 10 );
 620         if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 621             // overflow
 622         } else if ( (numVal == 0) && (endPtr == ptr) ) {
 623             // failed conversion
 624         } else {
 625             good = true;
 626             str.erase( 0, endPos + 1 );
 627         }
 628     }
 629
 630     return good;
 631 }
 632
 633 void ColorItem::_wireMagicColors( void* p )
 634 {
 635     JustForNow* onceMore = reinterpret_cast<JustForNow*>(p);
 636     if ( onceMore )
 637     {
 638         for ( std::vector<ColorItem*>::iterator it = onceMore->_colors.begin(); it != onceMore->_colors.end(); ++it )
 639         {
 640             size_t pos = (*it)->def.descr.find("*{");
 641             if ( pos != std::string::npos )
 642             {
 643                 std::string subby = (*it)->def.descr.substr( pos + 2 );
 644                 size_t endPos = subby.find("}*");
 645                 if ( endPos != std::string::npos )
 646                 {
 647                     subby.erase( endPos );
 648                     //g_message("FOUND MAGIC at '%s'", (*it)->def.descr.c_str());
 649                     //g_message("               '%s'", subby.c_str());
 650
 651                     if ( subby.find('E') != std::string::npos )
 652                     {
 653                         (*it)->def.setEditable( true );
 654                     }
 655
 656                     if ( subby.find('L') != std::string::npos )
 657                     {
 658                         (*it)->_isLive = true;
 659                     }
 660
 661                     std::string part;
 662                     // Tint. index + 1 more val.
 663                     if ( getBlock( part, 'T', subby ) ) {
 664                         guint64 colorIndex = 0;
 665                         if ( popVal( colorIndex, part ) ) {
 666                             guint64 percent = 0;
 667                             if ( popVal( percent, part ) ) {
 668                                 (*it)->_linkTint( *(onceMore->_colors[colorIndex]), percent );
 669                             }
 670                         }
 671                     }
 672
 673                     // Shade/tone. index + 1 or 2 more val.
 674                     if ( getBlock( part, 'S', subby ) ) {
 675                         guint64 colorIndex = 0;
 676                         if ( popVal( colorIndex, part ) ) {
 677                             guint64 percent = 0;
 678                             if ( popVal( percent, part ) ) {
 679                                 guint64 grayLevel = 0;
 680                                 if ( !popVal( grayLevel, part ) ) {
 681                                     grayLevel = 0;
 682                                 }
 683                                 (*it)->_linkTone( *(onceMore->_colors[colorIndex]), percent, grayLevel );
 684                             }
 685                         }
 686                     }
 687
 688                 }
 689             }
 690         }
 691     }
 692 }
 693
 694
 695 void ColorItem::_linkTint( ColorItem& other, int percent )
 696 {
 697     if ( !_linkSrc )
 698     {
 699         other._listeners.push_back(this);
 700         _linkIsTone = false;
 701         _linkPercent = percent;
 702         if ( _linkPercent > 100 )
 703             _linkPercent = 100;
 704         if ( _linkPercent < 0 )
 705             _linkPercent = 0;
 706         _linkGray = 0;
 707         _linkSrc = &other;
 708
 709         ColorItem::_colorDefChanged(&other);
 710     }
 711 }
 712
 713 void ColorItem::_linkTone( ColorItem& other, int percent, int grayLevel )
 714 {
 715     if ( !_linkSrc )
 716     {
 717         other._listeners.push_back(this);
 718         _linkIsTone = true;
 719         _linkPercent = percent;
 720         if ( _linkPercent > 100 )
 721             _linkPercent = 100;
 722         if ( _linkPercent < 0 )
 723             _linkPercent = 0;
 724         _linkGray = grayLevel;
 725         _linkSrc = &other;
 726
 727         ColorItem::_colorDefChanged(&other);
 728     }
 729 }
 730
 731
 732 void _loadPaletteFile( gchar const *filename )
 733 {
 734     char block[1024];
 735     FILE *f = Inkscape::IO::fopen_utf8name( filename, "r" );
 736     if ( f ) {
 737         char* result = fgets( block, sizeof(block), f );
 738         if ( result ) {
 739             if ( strncmp( "GIMP Palette", block, 12 ) == 0 ) {
 740                 bool inHeader = true;
 741                 bool hasErr = false;
 742
 743                 JustForNow *onceMore = new JustForNow();
 744
 745                 do {
 746                     result = fgets( block, sizeof(block), f );
 747                     block[sizeof(block) - 1] = 0;
 748                     if ( result ) {
 749                         if ( block[0] == '#' ) {
 750                             // ignore comment
 751                         } else {
 752                             char *ptr = block;
 753                             // very simple check for header versus entry
 754                             while ( *ptr == ' ' || *ptr == '\t' ) {
 755                                 ptr++;
 756                             }
 757                             if ( *ptr == 0 ) {
 758                                 // blank line. skip it.
 759                             } else if ( '0' <= *ptr && *ptr <= '9' ) {
 760                                 // should be an entry link
 761                                 inHeader = false;
 762                                 ptr = block;
 763                                 Glib::ustring name("");
 764                                 int r = 0;
 765                                 int g = 0;
 766                                 int b = 0;
 767                                 skipWhitespace(ptr);
 768                                 if ( *ptr ) {
 769                                     hasErr = parseNum(ptr, r);
 770                                     if ( !hasErr ) {
 771                                         skipWhitespace(ptr);
 772                                         hasErr = parseNum(ptr, g);
 773                                     }
 774                                     if ( !hasErr ) {
 775                                         skipWhitespace(ptr);
 776                                         hasErr = parseNum(ptr, b);
 777                                     }
 778                                     if ( !hasErr && *ptr ) {
 779                                         char* n = trim(ptr);
 780                                         if (n != NULL) {
 781                                             name = n;
 782                                         }
 783                                     }
 784                                     if ( !hasErr ) {
 785                                         // Add the entry now
 786                                         Glib::ustring nameStr(name);
 787                                         ColorItem* item = new ColorItem( r, g, b, nameStr );
 788                                         onceMore->_colors.push_back(item);
 789                                     }
 790                                 } else {
 791                                     hasErr = true;
 792                                 }
 793                             } else {
 794                                 if ( !inHeader ) {
 795                                     // Hmmm... probably bad. Not quite the format we want?
 796                                     hasErr = true;
 797                                 } else {
 798                                     char* sep = strchr(result, ':');
 799                                     if ( sep ) {
 800                                         *sep = 0;
 801                                         char* val = trim(sep + 1);
 802                                         char* name = trim(result);
 803                                         if ( *name ) {
 804                                             if ( strcmp( "Name", name ) == 0 )
 805                                             {
 806                                                 onceMore->_name = val;
 807                                             }
 808                                             else if ( strcmp( "Columns", name ) == 0 )
 809                                             {
 810                                                 gchar* endPtr = 0;
 811                                                 guint64 numVal = g_ascii_strtoull( val, &endPtr, 10 );
 812                                                 if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 813                                                     // overflow
 814                                                 } else if ( (numVal == 0) && (endPtr == val) ) {
 815                                                     // failed conversion
 816                                                 } else {
 817                                                     onceMore->_prefWidth = numVal;
 818                                                 }
 819                                             }
 820                                         } else {
 821                                             // error
 822                                             hasErr = true;
 823                                         }
 824                                     } else {
 825                                         // error
 826                                         hasErr = true;
 827                                     }
 828                                 }
 829                             }
 830                         }
 831                     }
 832                 } while ( result && !hasErr );
 833                 if ( !hasErr ) {
 834                     possible.push_back(onceMore);
 835                     ColorItem::_wireMagicColors( onceMore );
 836                 } else {
 837                     delete onceMore;
 838                 }
 839             }
 840         }
 841
 842         fclose(f);
 843     }
 844 }
 845
 846 static void loadEmUp()
 847 {
 848     static bool beenHere = false;
 849     if ( !beenHere ) {
 850         beenHere = true;
 851
 852         std::list<gchar *> sources;
 853         sources.push_back( profile_path("palettes") );
 854         sources.push_back( g_strdup(INKSCAPE_PALETTESDIR) );
 855
 856         // Use this loop to iterate through a list of possible document locations.
 857         while (!sources.empty()) {
 858             gchar *dirname = sources.front();
 859
 860             if ( Inkscape::IO::file_test( dirname, (GFileTest)(G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR) ) ) {
 861                 GError *err = 0;
 862                 GDir *directory = g_dir_open(dirname, 0, &err);
 863                 if (!directory) {
 864                     gchar *safeDir = Inkscape::IO::sanitizeString(dirname);
 865                     g_warning(_("Palettes directory (%s) is unavailable."), safeDir);
 866                     g_free(safeDir);
 867                 } else {
 868                     gchar *filename = 0;
 869                     while ((filename = (gchar *)g_dir_read_name(directory)) != NULL) {
 870                         gchar* lower = g_ascii_strdown( filename, -1 );
 871                         if ( g_str_has_suffix(lower, ".gpl") ) {
 872                             gchar* full = g_build_filename(dirname, filename, NULL);
 873                             if ( !Inkscape::IO::file_test( full, (GFileTest)(G_FILE_TEST_IS_DIR ) ) ) {
 874                                 _loadPaletteFile(full);
 875                             }
 876                             g_free(full);
 877                         }
 878                         g_free(lower);
 879                     }
 880                     g_dir_close(directory);
 881                 }
 882             }
 883
 884             // toss the dirname
 885             g_free(dirname);
 886             sources.pop_front();
 887         }
 888     }
 889 }
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899 SwatchesPanel& SwatchesPanel::getInstance()
 900 {
 901     if ( !instance ) {
 902         instance = new SwatchesPanel();
 903     }
 904
 905     return *instance;
 906 }
 907
 908
 909
 910 /**
 911  * Constructor
 912  */
 913 SwatchesPanel::SwatchesPanel() :
 914     Inkscape::UI::Widget::Panel ("dialogs.swatches"),
 915     _holder(0)
 916 {
 917     _holder = new PreviewHolder();
 918     loadEmUp();
 919
 920     if ( !possible.empty() ) {
 921         JustForNow* first = possible.front();
 922         if ( first->_prefWidth > 0 ) {
 923             _holder->setColumnPref( first->_prefWidth );
 924         }
 925         _holder->freezeUpdates();
 926         for ( std::vector<ColorItem*>::iterator it = first->_colors.begin(); it != first->_colors.end(); it++ ) {
 927             _holder->addPreview(*it);
 928         }
 929         _holder->thawUpdates();
 930
 931         Gtk::RadioMenuItem::Group groupOne;
 932         int i = 0;
 933         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end(); it++ ) {
 934             JustForNow* curr = *it;
 935             Gtk::RadioMenuItem* single = manage(new Gtk::RadioMenuItem(groupOne, curr->_name));
 936             _regItem( single, 3, i );
 937             i++;
 938         }
 939
 940     }
 941
 942
 943     _getContents()->pack_start(*_holder, Gtk::PACK_EXPAND_WIDGET);
 944     _setTargetFillable(_holder);
 945
 946     show_all_children();
 947
 948     restorePanelPrefs();
 949 }
 950
 951 SwatchesPanel::~SwatchesPanel()
 952 {
 953 }
 954
 955 void SwatchesPanel::setOrientation( Gtk::AnchorType how )
 956 {
 957     // Must call the parent class or bad things might happen
 958     Inkscape::UI::Widget::Panel::setOrientation( how );
 959
 960     if ( _holder )
 961     {
 962         _holder->setOrientation( Gtk::ANCHOR_SOUTH );
 963     }
 964 }
 965
 966 void SwatchesPanel::_handleAction( int setId, int itemId )
 967 {
 968     switch( setId ) {
 969         case 3:
 970         {
 971             if ( itemId >= 0 && itemId < static_cast<int>(possible.size()) ) {
 972                 _holder->clear();
 973                 JustForNow* curr = possible[itemId];
 974                 if ( curr->_prefWidth > 0 ) {
 975                     _holder->setColumnPref( curr->_prefWidth );
 976                 }
 977                 _holder->freezeUpdates();
 978                 for ( std::vector<ColorItem*>::iterator it = curr->_colors.begin(); it != curr->_colors.end(); it++ ) {
 979                     _holder->addPreview(*it);
 980                 }
 981                 _holder->thawUpdates();
 982             }
 983         }
 984         break;
 985     }
 986 }
 987
 988 } //namespace Dialogs
 989 } //namespace UI
 990 } //namespace Inkscape
 991
 992
 993 /*
 994   Local Variables:
 995   mode:c++
 996   c-file-style:"stroustrup"
 997   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
 998   indent-tabs-mode:nil
 999   fill-column:99
1000   End:
1001 */
1002 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :