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 #include <gtk/gtkmenu.h>
  20 #include <gtk/gtkmenuitem.h>
  21 #include <gtk/gtkseparatormenuitem.h>
  22
  23 #include <glibmm/i18n.h>
  24 #include <gdkmm/pixbuf.h>
  25 #include "inkscape.h"
  26 #include "document.h"
  27 #include "desktop-handles.h"
  28 #include "extension/db.h"
  29 #include "inkscape.h"
  30 #include "svg/svg-color.h"
  31 #include "desktop-style.h"
  32 #include "io/sys.h"
  33 #include "path-prefix.h"
  34 #include "swatches.h"
  35 #include "sp-item.h"
  36 #include "prefs-utils.h"
  37
  38 #include "eek-preview.h"
  39
  40 namespace Inkscape {
  41 namespace UI {
  42 namespace Dialogs {
  43
  44
  45 ColorItem::ColorItem( unsigned int r, unsigned int g, unsigned int b, Glib::ustring& name ) :
  46     def( r, g, b, name ),
  47     _isLive(false),
  48     _linkIsTone(false),
  49     _linkPercent(0),
  50     _linkGray(0),
  51     _linkSrc(0)
  52 {
  53 }
  54
  55 ColorItem::~ColorItem()
  56 {
  57 }
  58
  59 ColorItem::ColorItem(ColorItem const &other) :
  60     Inkscape::UI::Previewable()
  61 {
  62     if ( this != &other ) {
  63         *this = other;
  64     }
  65 }
  66
  67 ColorItem &ColorItem::operator=(ColorItem const &other)
  68 {
  69     if ( this != &other ) {
  70         def = other.def;
  71
  72         // TODO - correct linkage
  73         _linkSrc = other._linkSrc;
  74         g_message("Erk!");
  75     }
  76     return *this;
  77 }
  78
  79
  80 class JustForNow
  81 {
  82 public:
  83     JustForNow() : _prefWidth(0) {}
  84
  85     Glib::ustring _name;
  86     int _prefWidth;
  87     std::vector<ColorItem*> _colors;
  88 };
  89
  90 static std::vector<JustForNow*> possible;
  91
  92
  93
  94 typedef enum {
  95     APP_X_INKY_COLOR_ID = 0,
  96     APP_X_INKY_COLOR = 0,
  97     APP_X_COLOR,
  98     TEXT_DATA
  99 } colorFlavorType;
 100
 101 static const GtkTargetEntry sourceColorEntries[] = {
 102 #if ENABLE_MAGIC_COLORS
 103 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 104     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 105 #endif // ENABLE_MAGIC_COLORS
 106     {"application/x-color", 0, APP_X_COLOR},
 107     {"text/plain", 0, TEXT_DATA},
 108 };
 109
 110 void ColorItem::_dragGetColorData( GtkWidget *widget,
 111                                    GdkDragContext *drag_context,
 112                                    GtkSelectionData *data,
 113                                    guint info,
 114                                    guint time,
 115                                    gpointer user_data)
 116 {
 117     (void)widget;
 118     (void)drag_context;
 119     (void)time;
 120     static GdkAtom typeXColor = gdk_atom_intern("application/x-color", FALSE);
 121     static GdkAtom typeText = gdk_atom_intern("text/plain", FALSE);
 122
 123     ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 124     if ( info == TEXT_DATA ) {
 125         gchar* tmp = g_strdup_printf("#%02x%02x%02x", item->def.getR(), item->def.getG(), item->def.getB() );
 126
 127         gtk_selection_data_set( data,
 128                                 typeText,
 129                                 8, // format
 130                                 (guchar*)tmp,
 131                                 strlen((const char*)tmp) + 1);
 132         g_free(tmp);
 133         tmp = 0;
 134     } else if ( info == APP_X_INKY_COLOR ) {
 135         Glib::ustring paletteName;
 136
 137         // Find where this thing came from
 138         bool found = false;
 139         int index = 0;
 140         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end() && !found; ++it ) {
 141             JustForNow* curr = *it;
 142             index = 0;
 143             for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 144                 if ( item == *zz ) {
 145                     found = true;
 146                     paletteName = curr->_name;
 147                     break;
 148                 } else {
 149                     index++;
 150                 }
 151             }
 152         }
 153
 154 //         if ( found ) {
 155 //             g_message("Found the color at entry %d in palette '%s'", index, paletteName.c_str() );
 156 //         } else {
 157 //             g_message("Unable to find the color");
 158 //         }
 159         int itemCount = 4 + 2 + 1 + paletteName.length();
 160
 161         guint16* tmp = new guint16[itemCount];
 162         tmp[0] = (item->def.getR() << 8) | item->def.getR();
 163         tmp[1] = (item->def.getG() << 8) | item->def.getG();
 164         tmp[2] = (item->def.getB() << 8) | item->def.getB();
 165         tmp[3] = 0xffff;
 166         tmp[4] = (item->_isLive || !item->_listeners.empty() || (item->_linkSrc != 0) ) ? 1 : 0;
 167
 168         tmp[5] = index;
 169         tmp[6] = paletteName.length();
 170         for ( unsigned int i = 0; i < paletteName.length(); i++ ) {
 171             tmp[7 + i] = paletteName[i];
 172         }
 173         gtk_selection_data_set( data,
 174                                 typeXColor,
 175                                 16, // format
 176                                 reinterpret_cast<const guchar*>(tmp),
 177                                 itemCount * 2);
 178         delete[] tmp;
 179     } else {
 180         guint16 tmp[4];
 181         tmp[0] = (item->def.getR() << 8) | item->def.getR();
 182         tmp[1] = (item->def.getG() << 8) | item->def.getG();
 183         tmp[2] = (item->def.getB() << 8) | item->def.getB();
 184         tmp[3] = 0xffff;
 185         gtk_selection_data_set( data,
 186                                 typeXColor,
 187                                 16, // format
 188                                 reinterpret_cast<const guchar*>(tmp),
 189                                 (3+1) * 2);
 190     }
 191 }
 192
 193 static void dragBegin( GtkWidget *widget, GdkDragContext* dc, gpointer data )
 194 {
 195     (void)widget;
 196     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 197     if ( item )
 198     {
 199         Glib::RefPtr<Gdk::Pixbuf> thumb = Gdk::Pixbuf::create( Gdk::COLORSPACE_RGB, false, 8, 32, 24 );
 200         guint32 fillWith = (0xff000000 & (item->def.getR() << 24))
 201                          | (0x00ff0000 & (item->def.getG() << 16))
 202                          | (0x0000ff00 & (item->def.getB() <<  8));
 203         thumb->fill( fillWith );
 204         gtk_drag_set_icon_pixbuf( dc, thumb->gobj(), 0, 0 );
 205     }
 206
 207 }
 208
 209 //"drag-drop"
 210 // gboolean dragDropColorData( GtkWidget *widget,
 211 //                             GdkDragContext *drag_context,
 212 //                             gint x,
 213 //                             gint y,
 214 //                             guint time,
 215 //                             gpointer user_data)
 216 // {
 217 // // TODO finish
 218
 219 //     return TRUE;
 220 // }
 221
 222 static void handleClick( GtkWidget* widget, gpointer callback_data ) {
 223     (void)widget;
 224     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 225     if ( item ) {
 226         item->buttonClicked(false);
 227     }
 228 }
 229
 230 static void handleSecondaryClick( GtkWidget* widget, gint arg1, gpointer callback_data ) {
 231     (void)widget;
 232     (void)arg1;
 233     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 234     if ( item ) {
 235         item->buttonClicked(true);
 236     }
 237 }
 238
 239 static GtkWidget* popupMenu = 0;
 240 static ColorItem* bounceTarget = 0;
 241
 242 static void redirClick( GtkMenuItem *menuitem, gpointer user_data )
 243 {
 244     (void)user_data;
 245     if ( bounceTarget ) {
 246         handleClick( GTK_WIDGET(menuitem), bounceTarget );
 247     }
 248 }
 249
 250 static void redirSecondaryClick( GtkMenuItem *menuitem, gpointer user_data )
 251 {
 252     (void)user_data;
 253     if ( bounceTarget ) {
 254         handleSecondaryClick( GTK_WIDGET(menuitem), 0, bounceTarget );
 255     }
 256 }
 257
 258 static gboolean handleButtonPress( GtkWidget* widget, GdkEventButton* event, gpointer user_data)
 259 {
 260     (void)widget;
 261     gboolean handled = FALSE;
 262
 263     if ( (event->button == 3) && (event->type == GDK_BUTTON_PRESS) ) {
 264         if ( !popupMenu ) {
 265             popupMenu = gtk_menu_new();
 266             GtkWidget* child = 0;
 267
 268             //TRANSLATORS: An item in context menu on a colour in the swatches
 269             child = gtk_menu_item_new_with_label(_("Set fill"));
 270             g_signal_connect( G_OBJECT(child),
 271                               "activate",
 272                               G_CALLBACK(redirClick),
 273                               user_data);
 274             gtk_menu_shell_append(GTK_MENU_SHELL(popupMenu), child);
 275
 276             //TRANSLATORS: An item in context menu on a colour in the swatches
 277             child = gtk_menu_item_new_with_label(_("Set stroke"));
 278
 279             g_signal_connect( G_OBJECT(child),
 280                               "activate",
 281                               G_CALLBACK(redirSecondaryClick),
 282                               user_data);
 283             gtk_menu_shell_append(GTK_MENU_SHELL(popupMenu), child);
 284
 285             gtk_widget_show_all(popupMenu);
 286         }
 287
 288         ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 289         if ( item ) {
 290             bounceTarget = item;
 291             if ( popupMenu ) {
 292                 gtk_menu_popup(GTK_MENU(popupMenu), NULL, NULL, NULL, NULL, event->button, event->time);
 293                 handled = TRUE;
 294             }
 295         }
 296     }
 297
 298     return handled;
 299 }
 300
 301 static void dieDieDie( GtkObject *obj, gpointer user_data )
 302 {
 303     g_message("die die die %p  %p", obj, user_data );
 304 }
 305
 306 static const GtkTargetEntry destColorTargets[] = {
 307 #if ENABLE_MAGIC_COLORS
 308 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 309     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 310 #endif // ENABLE_MAGIC_COLORS
 311     {"application/x-color", 0, APP_X_COLOR},
 312 };
 313
 314 #include "color.h" // for SP_RGBA32_U_COMPOSE
 315
 316 void ColorItem::_dropDataIn( GtkWidget *widget,
 317                              GdkDragContext *drag_context,
 318                              gint x, gint y,
 319                              GtkSelectionData *data,
 320                              guint info,
 321                              guint event_time,
 322                              gpointer user_data)
 323 {
 324     (void)widget;
 325     (void)drag_context;
 326     (void)x;
 327     (void)y;
 328     (void)event_time;
 329 //     g_message("    droppy droppy   %d", info);
 330      switch (info) {
 331          case APP_X_INKY_COLOR:
 332          {
 333              if ( data->length >= 8 ) {
 334                  // Careful about endian issues.
 335                  guint16* dataVals = (guint16*)data->data;
 336                  if ( user_data ) {
 337                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 338                      if ( item->def.isEditable() ) {
 339                          // Shove on in the new value
 340                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 341                      }
 342                  }
 343              }
 344              break;
 345          }
 346          case APP_X_COLOR:
 347          {
 348              if ( data->length == 8 ) {
 349                  // Careful about endian issues.
 350                  guint16* dataVals = (guint16*)data->data;
 351 //                  {
 352 //                      gchar c[64] = {0};
 353 //                      sp_svg_write_color( c, 64,
 354 //                                          SP_RGBA32_U_COMPOSE(
 355 //                                              0x0ff & (dataVals[0] >> 8),
 356 //                                              0x0ff & (dataVals[1] >> 8),
 357 //                                              0x0ff & (dataVals[2] >> 8),
 358 //                                              0xff // can't have transparency in the color itself
 359 //                                              //0x0ff & (data->data[3] >> 8),
 360 //                                              ));
 361 //                  }
 362                  if ( user_data ) {
 363                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 364                      if ( item->def.isEditable() ) {
 365                          // Shove on in the new value
 366                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 367                      }
 368                  }
 369              }
 370              break;
 371          }
 372          default:
 373              g_message("unknown drop type");
 374      }
 375
 376 }
 377
 378 static bool bruteForce( SPDocument* document, Inkscape::XML::Node* node, Glib::ustring const& match, int r, int g, int b )
 379 {
 380     bool changed = false;
 381
 382     if ( node ) {
 383         gchar const * val = node->attribute("inkscape:x-fill-tag");
 384         if ( val  && (match == val) ) {
 385             SPObject *obj = document->getObjectByRepr( node );
 386
 387             gchar c[64] = {0};
 388             sp_svg_write_color( c, sizeof(c), SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 389             SPCSSAttr *css = sp_repr_css_attr_new();
 390             sp_repr_css_set_property( css, "fill", c );
 391
 392             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 393             ((SPItem*)obj)->updateRepr();
 394
 395             changed = true;
 396         }
 397
 398         val = node->attribute("inkscape:x-stroke-tag");
 399         if ( val  && (match == val) ) {
 400             SPObject *obj = document->getObjectByRepr( node );
 401
 402             gchar c[64] = {0};
 403             sp_svg_write_color( c, sizeof(c), SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 404             SPCSSAttr *css = sp_repr_css_attr_new();
 405             sp_repr_css_set_property( css, "stroke", c );
 406
 407             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 408             ((SPItem*)obj)->updateRepr();
 409
 410             changed = true;
 411         }
 412
 413         Inkscape::XML::Node* first = node->firstChild();
 414         changed |= bruteForce( document, first, match, r, g, b );
 415
 416         changed |= bruteForce( document, node->next(), match, r, g, b );
 417     }
 418
 419     return changed;
 420 }
 421
 422 void ColorItem::_colorDefChanged(void* data)
 423 {
 424     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 425     if ( item ) {
 426         for ( std::vector<Gtk::Widget*>::iterator it =  item->_previews.begin(); it != item->_previews.end(); ++it ) {
 427             Gtk::Widget* widget = *it;
 428             if ( IS_EEK_PREVIEW(widget->gobj()) ) {
 429                 EekPreview * preview = EEK_PREVIEW(widget->gobj());
 430                 eek_preview_set_color( preview,
 431                                        (item->def.getR() << 8) | item->def.getR(),
 432                                        (item->def.getG() << 8) | item->def.getG(),
 433                                        (item->def.getB() << 8) | item->def.getB() );
 434
 435                 eek_preview_set_linked( preview, (LinkType)((item->_linkSrc ? PREVIEW_LINK_IN:0)
 436                                                             | (item->_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 437                                                             | (item->_isLive ? PREVIEW_LINK_OTHER:0)) );
 438
 439                 widget->queue_draw();
 440             }
 441         }
 442
 443         for ( std::vector<ColorItem*>::iterator it = item->_listeners.begin(); it != item->_listeners.end(); ++it ) {
 444             guint r = item->def.getR();
 445             guint g = item->def.getG();
 446             guint b = item->def.getB();
 447
 448             if ( (*it)->_linkIsTone ) {
 449                 r = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 450                 g = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 451                 b = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 452             } else {
 453                 r = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 454                 g = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 455                 b = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 456             }
 457
 458             (*it)->def.setRGB( r, g, b );
 459         }
 460
 461
 462         // Look for objects using this color
 463         {
 464             SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 465             if ( desktop ) {
 466                 SPDocument* document = sp_desktop_document( desktop );
 467                 Inkscape::XML::Node *rroot =  sp_document_repr_root( document );
 468                 if ( rroot ) {
 469
 470                     // Find where this thing came from
 471                     Glib::ustring paletteName;
 472                     bool found = false;
 473                     int index = 0;
 474                     for ( std::vector<JustForNow*>::iterator it2 = possible.begin(); it2 != possible.end() && !found; ++it2 ) {
 475                         JustForNow* curr = *it2;
 476                         index = 0;
 477                         for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 478                             if ( item == *zz ) {
 479                                 found = true;
 480                                 paletteName = curr->_name;
 481                                 break;
 482                             } else {
 483                                 index++;
 484                             }
 485                         }
 486                     }
 487
 488                     if ( !paletteName.empty() ) {
 489                         gchar* str = g_strdup_printf("%d|", index);
 490                         paletteName.insert( 0, str );
 491                         g_free(str);
 492                         str = 0;
 493
 494                         if ( bruteForce( document, rroot, paletteName, item->def.getR(), item->def.getG(), item->def.getB() ) ) {
 495                             sp_document_done( document , SP_VERB_DIALOG_SWATCHES,
 496                                               _("Change color definition"));
 497                         }
 498                     }
 499                 }
 500             }
 501         }
 502     }
 503 }
 504
 505
 506 Gtk::Widget* ColorItem::getPreview(PreviewStyle style, ViewType view, Inkscape::IconSize size)
 507 {
 508     Gtk::Widget* widget = 0;
 509     if ( style == PREVIEW_STYLE_BLURB ) {
 510         Gtk::Label *lbl = new Gtk::Label(def.descr);
 511         lbl->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
 512         widget = lbl;
 513     } else {
 514 //         Glib::ustring blank("          ");
 515 //         if ( size == Inkscape::ICON_SIZE_MENU || size == Inkscape::ICON_SIZE_DECORATION ) {
 516 //             blank = " ";
 517 //         }
 518
 519         GtkWidget* eekWidget = eek_preview_new();
 520         EekPreview * preview = EEK_PREVIEW(eekWidget);
 521         Gtk::Widget* newBlot = Glib::wrap(eekWidget);
 522
 523         eek_preview_set_color( preview, (def.getR() << 8) | def.getR(), (def.getG() << 8) | def.getG(), (def.getB() << 8) | def.getB());
 524
 525         eek_preview_set_details( preview, (::PreviewStyle)style, (::ViewType)view, (::GtkIconSize)size );
 526         eek_preview_set_linked( preview, (LinkType)((_linkSrc ? PREVIEW_LINK_IN:0)
 527                                                     | (_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 528                                                     | (_isLive ? PREVIEW_LINK_OTHER:0)) );
 529
 530         def.addCallback( _colorDefChanged, this );
 531
 532         GValue val = {0, {{0}, {0}}};
 533         g_value_init( &val, G_TYPE_BOOLEAN );
 534         g_value_set_boolean( &val, FALSE );
 535         g_object_set_property( G_OBJECT(preview), "focus-on-click", &val );
 536
 537 /*
 538         Gtk::Button *btn = new Gtk::Button(blank);
 539         Gdk::Color color;
 540         color.set_rgb((_r << 8)|_r, (_g << 8)|_g, (_b << 8)|_b);
 541         btn->modify_bg(Gtk::STATE_NORMAL, color);
 542         btn->modify_bg(Gtk::STATE_ACTIVE, color);
 543         btn->modify_bg(Gtk::STATE_PRELIGHT, color);
 544         btn->modify_bg(Gtk::STATE_SELECTED, color);
 545
 546         Gtk::Widget* newBlot = btn;
 547 */
 548
 549         tips.set_tip((*newBlot), def.descr);
 550
 551 /*
 552         newBlot->signal_clicked().connect( sigc::mem_fun(*this, &ColorItem::buttonClicked) );
 553
 554         sigc::signal<void> type_signal_something;
 555 */
 556
 557         g_signal_connect( G_OBJECT(newBlot->gobj()),
 558                           "clicked",
 559                           G_CALLBACK(handleClick),
 560                           this);
 561
 562         g_signal_connect( G_OBJECT(newBlot->gobj()),
 563                           "alt-clicked",
 564                           G_CALLBACK(handleSecondaryClick),
 565                           this);
 566
 567         g_signal_connect( G_OBJECT(newBlot->gobj()),
 568                           "button-press-event",
 569                           G_CALLBACK(handleButtonPress),
 570                           this);
 571
 572         gtk_drag_source_set( GTK_WIDGET(newBlot->gobj()),
 573                              GDK_BUTTON1_MASK,
 574                              sourceColorEntries,
 575                              G_N_ELEMENTS(sourceColorEntries),
 576                              GdkDragAction(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
 577
 578         g_signal_connect( G_OBJECT(newBlot->gobj()),
 579                           "drag-data-get",
 580                           G_CALLBACK(ColorItem::_dragGetColorData),
 581                           this);
 582
 583         g_signal_connect( G_OBJECT(newBlot->gobj()),
 584                           "drag-begin",
 585                           G_CALLBACK(dragBegin),
 586                           this );
 587
 588 //         g_signal_connect( G_OBJECT(newBlot->gobj()),
 589 //                           "drag-drop",
 590 //                           G_CALLBACK(dragDropColorData),
 591 //                           this);
 592
 593         if ( def.isEditable() )
 594         {
 595             gtk_drag_dest_set( GTK_WIDGET(newBlot->gobj()),
 596                                GTK_DEST_DEFAULT_ALL,
 597                                destColorTargets,
 598                                G_N_ELEMENTS(destColorTargets),
 599                                GdkDragAction(GDK_ACTION_COPY | GDK_ACTION_MOVE) );
 600
 601
 602             g_signal_connect( G_OBJECT(newBlot->gobj()),
 603                               "drag-data-received",
 604                               G_CALLBACK(_dropDataIn),
 605                               this );
 606         }
 607
 608         g_signal_connect( G_OBJECT(newBlot->gobj()),
 609                           "destroy",
 610                           G_CALLBACK(dieDieDie),
 611                           this);
 612
 613
 614         widget = newBlot;
 615     }
 616
 617     _previews.push_back( widget );
 618
 619     return widget;
 620 }
 621
 622 void ColorItem::buttonClicked(bool secondary)
 623 {
 624     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 625     if (desktop) {
 626         char const * attrName = secondary ? "stroke" : "fill";
 627         guint32 rgba = (def.getR() << 24) | (def.getG() << 16) | (def.getB() << 8) | 0xff;
 628         gchar c[64];
 629         sp_svg_write_color(c, sizeof(c), rgba);
 630
 631         SPCSSAttr *css = sp_repr_css_attr_new();
 632         sp_repr_css_set_property( css, attrName, c );
 633         sp_desktop_set_style(desktop, css);
 634
 635         sp_repr_css_attr_unref(css);
 636         sp_document_done (sp_desktop_document (desktop), SP_VERB_DIALOG_SWATCHES,
 637                           secondary? _("Set stroke color from swatch") : _("Set fill color from swatch"));
 638     }
 639 }
 640
 641
 642
 643
 644 static char* trim( char* str ) {
 645     char* ret = str;
 646     while ( *str && (*str == ' ' || *str == '\t') ) {
 647         str++;
 648     }
 649     ret = str;
 650     while ( *str ) {
 651         str++;
 652     }
 653     str--;
 654     while ( str > ret && ( *str == ' ' || *str == '\t' ) || *str == '\r' || *str == '\n' ) {
 655         *str-- = 0;
 656     }
 657     return ret;
 658 }
 659
 660 void skipWhitespace( char*& str ) {
 661     while ( *str == ' ' || *str == '\t' ) {
 662         str++;
 663     }
 664 }
 665
 666 bool parseNum( char*& str, int& val ) {
 667     val = 0;
 668     while ( '0' <= *str && *str <= '9' ) {
 669         val = val * 10 + (*str - '0');
 670         str++;
 671     }
 672     bool retval = !(*str == 0 || *str == ' ' || *str == '\t' || *str == '\r' || *str == '\n');
 673     return retval;
 674 }
 675
 676
 677 static bool getBlock( std::string& dst, guchar ch, std::string const str )
 678 {
 679     bool good = false;
 680     std::string::size_type pos = str.find(ch);
 681     if ( pos != std::string::npos )
 682     {
 683         std::string::size_type pos2 = str.find( '(', pos );
 684         if ( pos2 != std::string::npos ) {
 685             std::string::size_type endPos = str.find( ')', pos2 );
 686             if ( endPos != std::string::npos ) {
 687                 dst = str.substr( pos2 + 1, (endPos - pos2 - 1) );
 688                 good = true;
 689             }
 690         }
 691     }
 692     return good;
 693 }
 694
 695 static bool popVal( guint64& numVal, std::string& str )
 696 {
 697     bool good = false;
 698     std::string::size_type endPos = str.find(',');
 699     if ( endPos == std::string::npos ) {
 700         endPos = str.length();
 701     }
 702
 703     if ( endPos != std::string::npos && endPos > 0 ) {
 704         std::string xxx = str.substr( 0, endPos );
 705         const gchar* ptr = xxx.c_str();
 706         gchar* endPtr = 0;
 707         numVal = g_ascii_strtoull( ptr, &endPtr, 10 );
 708         if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 709             // overflow
 710         } else if ( (numVal == 0) && (endPtr == ptr) ) {
 711             // failed conversion
 712         } else {
 713             good = true;
 714             str.erase( 0, endPos + 1 );
 715         }
 716     }
 717
 718     return good;
 719 }
 720
 721 void ColorItem::_wireMagicColors( void* p )
 722 {
 723     JustForNow* onceMore = reinterpret_cast<JustForNow*>(p);
 724     if ( onceMore )
 725     {
 726         for ( std::vector<ColorItem*>::iterator it = onceMore->_colors.begin(); it != onceMore->_colors.end(); ++it )
 727         {
 728             std::string::size_type pos = (*it)->def.descr.find("*{");
 729             if ( pos != std::string::npos )
 730             {
 731                 std::string subby = (*it)->def.descr.substr( pos + 2 );
 732                 std::string::size_type endPos = subby.find("}*");
 733                 if ( endPos != std::string::npos )
 734                 {
 735                     subby.erase( endPos );
 736                     //g_message("FOUND MAGIC at '%s'", (*it)->def.descr.c_str());
 737                     //g_message("               '%s'", subby.c_str());
 738
 739                     if ( subby.find('E') != std::string::npos )
 740                     {
 741                         (*it)->def.setEditable( true );
 742                     }
 743
 744                     if ( subby.find('L') != std::string::npos )
 745                     {
 746                         (*it)->_isLive = true;
 747                     }
 748
 749                     std::string part;
 750                     // Tint. index + 1 more val.
 751                     if ( getBlock( part, 'T', subby ) ) {
 752                         guint64 colorIndex = 0;
 753                         if ( popVal( colorIndex, part ) ) {
 754                             guint64 percent = 0;
 755                             if ( popVal( percent, part ) ) {
 756                                 (*it)->_linkTint( *(onceMore->_colors[colorIndex]), percent );
 757                             }
 758                         }
 759                     }
 760
 761                     // Shade/tone. index + 1 or 2 more val.
 762                     if ( getBlock( part, 'S', subby ) ) {
 763                         guint64 colorIndex = 0;
 764                         if ( popVal( colorIndex, part ) ) {
 765                             guint64 percent = 0;
 766                             if ( popVal( percent, part ) ) {
 767                                 guint64 grayLevel = 0;
 768                                 if ( !popVal( grayLevel, part ) ) {
 769                                     grayLevel = 0;
 770                                 }
 771                                 (*it)->_linkTone( *(onceMore->_colors[colorIndex]), percent, grayLevel );
 772                             }
 773                         }
 774                     }
 775
 776                 }
 777             }
 778         }
 779     }
 780 }
 781
 782
 783 void ColorItem::_linkTint( ColorItem& other, int percent )
 784 {
 785     if ( !_linkSrc )
 786     {
 787         other._listeners.push_back(this);
 788         _linkIsTone = false;
 789         _linkPercent = percent;
 790         if ( _linkPercent > 100 )
 791             _linkPercent = 100;
 792         if ( _linkPercent < 0 )
 793             _linkPercent = 0;
 794         _linkGray = 0;
 795         _linkSrc = &other;
 796
 797         ColorItem::_colorDefChanged(&other);
 798     }
 799 }
 800
 801 void ColorItem::_linkTone( ColorItem& other, int percent, int grayLevel )
 802 {
 803     if ( !_linkSrc )
 804     {
 805         other._listeners.push_back(this);
 806         _linkIsTone = true;
 807         _linkPercent = percent;
 808         if ( _linkPercent > 100 )
 809             _linkPercent = 100;
 810         if ( _linkPercent < 0 )
 811             _linkPercent = 0;
 812         _linkGray = grayLevel;
 813         _linkSrc = &other;
 814
 815         ColorItem::_colorDefChanged(&other);
 816     }
 817 }
 818
 819
 820 void _loadPaletteFile( gchar const *filename )
 821 {
 822     char block[1024];
 823     FILE *f = Inkscape::IO::fopen_utf8name( filename, "r" );
 824     if ( f ) {
 825         char* result = fgets( block, sizeof(block), f );
 826         if ( result ) {
 827             if ( strncmp( "GIMP Palette", block, 12 ) == 0 ) {
 828                 bool inHeader = true;
 829                 bool hasErr = false;
 830
 831                 JustForNow *onceMore = new JustForNow();
 832
 833                 do {
 834                     result = fgets( block, sizeof(block), f );
 835                     block[sizeof(block) - 1] = 0;
 836                     if ( result ) {
 837                         if ( block[0] == '#' ) {
 838                             // ignore comment
 839                         } else {
 840                             char *ptr = block;
 841                             // very simple check for header versus entry
 842                             while ( *ptr == ' ' || *ptr == '\t' ) {
 843                                 ptr++;
 844                             }
 845                             if ( *ptr == 0 ) {
 846                                 // blank line. skip it.
 847                             } else if ( '0' <= *ptr && *ptr <= '9' ) {
 848                                 // should be an entry link
 849                                 inHeader = false;
 850                                 ptr = block;
 851                                 Glib::ustring name("");
 852                                 int r = 0;
 853                                 int g = 0;
 854                                 int b = 0;
 855                                 skipWhitespace(ptr);
 856                                 if ( *ptr ) {
 857                                     hasErr = parseNum(ptr, r);
 858                                     if ( !hasErr ) {
 859                                         skipWhitespace(ptr);
 860                                         hasErr = parseNum(ptr, g);
 861                                     }
 862                                     if ( !hasErr ) {
 863                                         skipWhitespace(ptr);
 864                                         hasErr = parseNum(ptr, b);
 865                                     }
 866                                     if ( !hasErr && *ptr ) {
 867                                         char* n = trim(ptr);
 868                                         if (n != NULL) {
 869                                             name = n;
 870                                         }
 871                                     }
 872                                     if ( !hasErr ) {
 873                                         // Add the entry now
 874                                         Glib::ustring nameStr(name);
 875                                         ColorItem* item = new ColorItem( r, g, b, nameStr );
 876                                         onceMore->_colors.push_back(item);
 877                                     }
 878                                 } else {
 879                                     hasErr = true;
 880                                 }
 881                             } else {
 882                                 if ( !inHeader ) {
 883                                     // Hmmm... probably bad. Not quite the format we want?
 884                                     hasErr = true;
 885                                 } else {
 886                                     char* sep = strchr(result, ':');
 887                                     if ( sep ) {
 888                                         *sep = 0;
 889                                         char* val = trim(sep + 1);
 890                                         char* name = trim(result);
 891                                         if ( *name ) {
 892                                             if ( strcmp( "Name", name ) == 0 )
 893                                             {
 894                                                 onceMore->_name = val;
 895                                             }
 896                                             else if ( strcmp( "Columns", name ) == 0 )
 897                                             {
 898                                                 gchar* endPtr = 0;
 899                                                 guint64 numVal = g_ascii_strtoull( val, &endPtr, 10 );
 900                                                 if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 901                                                     // overflow
 902                                                 } else if ( (numVal == 0) && (endPtr == val) ) {
 903                                                     // failed conversion
 904                                                 } else {
 905                                                     onceMore->_prefWidth = numVal;
 906                                                 }
 907                                             }
 908                                         } else {
 909                                             // error
 910                                             hasErr = true;
 911                                         }
 912                                     } else {
 913                                         // error
 914                                         hasErr = true;
 915                                     }
 916                                 }
 917                             }
 918                         }
 919                     }
 920                 } while ( result && !hasErr );
 921                 if ( !hasErr ) {
 922                     possible.push_back(onceMore);
 923 #if ENABLE_MAGIC_COLORS
 924                     ColorItem::_wireMagicColors( onceMore );
 925 #endif // ENABLE_MAGIC_COLORS
 926                 } else {
 927                     delete onceMore;
 928                 }
 929             }
 930         }
 931
 932         fclose(f);
 933     }
 934 }
 935
 936 static void loadEmUp()
 937 {
 938     static bool beenHere = false;
 939     if ( !beenHere ) {
 940         beenHere = true;
 941
 942         std::list<gchar *> sources;
 943         sources.push_back( profile_path("palettes") );
 944         sources.push_back( g_strdup(INKSCAPE_PALETTESDIR) );
 945         sources.push_back( g_strdup(CREATE_PALETTESDIR) );
 946
 947         // Use this loop to iterate through a list of possible document locations.
 948         while (!sources.empty()) {
 949             gchar *dirname = sources.front();
 950
 951             if ( Inkscape::IO::file_test( dirname, (GFileTest)(G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR) ) ) {
 952                 GError *err = 0;
 953                 GDir *directory = g_dir_open(dirname, 0, &err);
 954                 if (!directory) {
 955                     gchar *safeDir = Inkscape::IO::sanitizeString(dirname);
 956                     g_warning(_("Palettes directory (%s) is unavailable."), safeDir);
 957                     g_free(safeDir);
 958                 } else {
 959                     gchar *filename = 0;
 960                     while ((filename = (gchar *)g_dir_read_name(directory)) != NULL) {
 961                         gchar* lower = g_ascii_strdown( filename, -1 );
 962 //                        if ( g_str_has_suffix(lower, ".gpl") ) {
 963                             gchar* full = g_build_filename(dirname, filename, NULL);
 964                             if ( !Inkscape::IO::file_test( full, (GFileTest)(G_FILE_TEST_IS_DIR ) ) ) {
 965                                 _loadPaletteFile(full);
 966                             }
 967                             g_free(full);
 968 //                      }
 969                         g_free(lower);
 970                     }
 971                     g_dir_close(directory);
 972                 }
 973             }
 974
 975             // toss the dirname
 976             g_free(dirname);
 977             sources.pop_front();
 978         }
 979     }
 980 }
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990 SwatchesPanel& SwatchesPanel::getInstance()
 991 {
 992     return *new SwatchesPanel();
 993 }
 994
 995
 996 /**
 997  * Constructor
 998  */
 999 SwatchesPanel::SwatchesPanel(gchar const* prefsPath) :
1000     Inkscape::UI::Widget::Panel("", prefsPath, SP_VERB_DIALOG_SWATCHES, "", true),
1001     _holder(0)
1002 {
1003     Gtk::RadioMenuItem* hotItem = 0;
1004     _holder = new PreviewHolder();
1005     loadEmUp();
1006
1007     if ( !possible.empty() ) {
1008         JustForNow* first = 0;
1009         gchar const* targetName = 0;
1010         if ( _prefs_path ) {
1011             targetName = prefs_get_string_attribute( _prefs_path, "palette" );
1012             if ( targetName ) {
1013                 for ( std::vector<JustForNow*>::iterator iter = possible.begin(); iter != possible.end(); ++iter ) {
1014                     if ( (*iter)->_name == targetName ) {
1015                         first = *iter;
1016                         break;
1017                     }
1018                 }
1019             }
1020         }
1021
1022         if ( !first ) {
1023             first = possible.front();
1024         }
1025
1026         if ( first->_prefWidth > 0 ) {
1027             _holder->setColumnPref( first->_prefWidth );
1028         }
1029         _holder->freezeUpdates();
1030         for ( std::vector<ColorItem*>::iterator it = first->_colors.begin(); it != first->_colors.end(); it++ ) {
1031             _holder->addPreview(*it);
1032         }
1033         _holder->thawUpdates();
1034
1035         Gtk::RadioMenuItem::Group groupOne;
1036         int i = 0;
1037         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end(); it++ ) {
1038             JustForNow* curr = *it;
1039             Gtk::RadioMenuItem* single = manage(new Gtk::RadioMenuItem(groupOne, curr->_name));
1040             if ( curr == first ) {
1041                 hotItem = single;
1042             }
1043             _regItem( single, 3, i );
1044             i++;
1045         }
1046
1047     }
1048
1049
1050     _getContents()->pack_start(*_holder, Gtk::PACK_EXPAND_WIDGET);
1051     _setTargetFillable(_holder);
1052
1053     show_all_children();
1054
1055     restorePanelPrefs();
1056     if ( hotItem ) {
1057         hotItem->set_active();
1058     }
1059 }
1060
1061 SwatchesPanel::~SwatchesPanel()
1062 {
1063 }
1064
1065 void SwatchesPanel::setOrientation( Gtk::AnchorType how )
1066 {
1067     // Must call the parent class or bad things might happen
1068     Inkscape::UI::Widget::Panel::setOrientation( how );
1069
1070     if ( _holder )
1071     {
1072         _holder->setOrientation( Gtk::ANCHOR_SOUTH );
1073     }
1074 }
1075
1076 void SwatchesPanel::_handleAction( int setId, int itemId )
1077 {
1078     switch( setId ) {
1079         case 3:
1080         {
1081             if ( itemId >= 0 && itemId < static_cast<int>(possible.size()) ) {
1082                 _holder->clear();
1083                 JustForNow* curr = possible[itemId];
1084
1085                 if ( _prefs_path ) {
1086                     prefs_set_string_attribute( _prefs_path, "palette", curr->_name.c_str() );
1087                 }
1088
1089                 if ( curr->_prefWidth > 0 ) {
1090                     _holder->setColumnPref( curr->_prefWidth );
1091                 }
1092                 _holder->freezeUpdates();
1093                 for ( std::vector<ColorItem*>::iterator it = curr->_colors.begin(); it != curr->_colors.end(); it++ ) {
1094                     _holder->addPreview(*it);
1095                 }
1096                 _holder->thawUpdates();
1097             }
1098         }
1099         break;
1100     }
1101 }
1102
1103 } //namespace Dialogs
1104 } //namespace UI
1105 } //namespace Inkscape
1106
1107
1108 /*
1109   Local Variables:
1110   mode:c++
1111   c-file-style:"stroustrup"
1112   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1113   indent-tabs-mode:nil
1114   fill-column:99
1115   End:
1116 */
1117 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :