src/dialogs/swatches.cpp

   1 /** @file
   2  * @brief Color swatches dialog
   3  */
   4 /* Authors:
   5  *   Jon A. Cruz
   6  *   John Bintz
   7  *
   8  * Copyright (C) 2005 Jon A. Cruz
   9  * Copyright (C) 2008 John Bintz
  10  *
  11  * Released under GNU GPL, read the file 'COPYING' for more information
  12  */
  13
  14 #include <errno.h>
  15
  16 #include <gtk/gtkdialog.h> //for GTK_RESPONSE* types
  17 #include <gtk/gtkdnd.h>
  18 #include <gtk/gtkmenu.h>
  19 #include <gtk/gtkmenuitem.h>
  20 #include <gtk/gtkseparatormenuitem.h>
  21
  22 #include <glibmm/i18n.h>
  23 #include <gdkmm/pixbuf.h>
  24 #include "inkscape.h"
  25 #include "desktop.h"
  26 #include "message-context.h"
  27 #include "document.h"
  28 #include "desktop-handles.h"
  29 #include "extension/db.h"
  30 #include "inkscape.h"
  31 #include "svg/svg-color.h"
  32 #include "desktop-style.h"
  33 #include "io/sys.h"
  34 #include "path-prefix.h"
  35 #include "swatches.h"
  36 #include "sp-item.h"
  37 #include "preferences.h"
  38
  39 #include "eek-preview.h"
  40
  41 namespace Inkscape {
  42 namespace UI {
  43 namespace Dialogs {
  44
  45
  46 ColorItem::ColorItem( unsigned int r, unsigned int g, unsigned int b, Glib::ustring& name ) :
  47     def( r, g, b, name ),
  48     _isLive(false),
  49     _linkIsTone(false),
  50     _linkPercent(0),
  51     _linkGray(0),
  52     _linkSrc(0)
  53 {
  54 }
  55
  56 ColorItem::~ColorItem()
  57 {
  58 }
  59
  60 ColorItem::ColorItem(ColorItem const &other) :
  61     Inkscape::UI::Previewable()
  62 {
  63     if ( this != &other ) {
  64         *this = other;
  65     }
  66 }
  67
  68 ColorItem &ColorItem::operator=(ColorItem const &other)
  69 {
  70     if ( this != &other ) {
  71         def = other.def;
  72
  73         // TODO - correct linkage
  74         _linkSrc = other._linkSrc;
  75         g_message("Erk!");
  76     }
  77     return *this;
  78 }
  79
  80
  81 class JustForNow
  82 {
  83 public:
  84     JustForNow() : _prefWidth(0) {}
  85
  86     Glib::ustring _name;
  87     int _prefWidth;
  88     std::vector<ColorItem*> _colors;
  89 };
  90
  91 static std::vector<JustForNow*> possible;
  92
  93
  94
  95 typedef enum {
  96     APP_X_INKY_COLOR_ID = 0,
  97     APP_X_INKY_COLOR = 0,
  98     APP_X_COLOR,
  99     TEXT_DATA
 100 } colorFlavorType;
 101
 102 static const GtkTargetEntry sourceColorEntries[] = {
 103 #if ENABLE_MAGIC_COLORS
 104 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 105     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 106 #endif // ENABLE_MAGIC_COLORS
 107     {"application/x-color", 0, APP_X_COLOR},
 108     {"text/plain", 0, TEXT_DATA},
 109 };
 110
 111 void ColorItem::_dragGetColorData( GtkWidget *widget,
 112                                    GdkDragContext *drag_context,
 113                                    GtkSelectionData *data,
 114                                    guint info,
 115                                    guint time,
 116                                    gpointer user_data)
 117 {
 118     (void)widget;
 119     (void)drag_context;
 120     (void)time;
 121     static GdkAtom typeXColor = gdk_atom_intern("application/x-color", FALSE);
 122     static GdkAtom typeText = gdk_atom_intern("text/plain", FALSE);
 123
 124     ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 125     if ( info == TEXT_DATA ) {
 126         gchar* tmp = g_strdup_printf("#%02x%02x%02x", item->def.getR(), item->def.getG(), item->def.getB() );
 127
 128         gtk_selection_data_set( data,
 129                                 typeText,
 130                                 8, // format
 131                                 (guchar*)tmp,
 132                                 strlen((const char*)tmp) + 1);
 133         g_free(tmp);
 134         tmp = 0;
 135     } else if ( info == APP_X_INKY_COLOR ) {
 136         Glib::ustring paletteName;
 137
 138         // Find where this thing came from
 139         bool found = false;
 140         int index = 0;
 141         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end() && !found; ++it ) {
 142             JustForNow* curr = *it;
 143             index = 0;
 144             for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 145                 if ( item == *zz ) {
 146                     found = true;
 147                     paletteName = curr->_name;
 148                     break;
 149                 } else {
 150                     index++;
 151                 }
 152             }
 153         }
 154
 155 //         if ( found ) {
 156 //             g_message("Found the color at entry %d in palette '%s'", index, paletteName.c_str() );
 157 //         } else {
 158 //             g_message("Unable to find the color");
 159 //         }
 160         int itemCount = 4 + 2 + 1 + paletteName.length();
 161
 162         guint16* tmp = new guint16[itemCount];
 163         tmp[0] = (item->def.getR() << 8) | item->def.getR();
 164         tmp[1] = (item->def.getG() << 8) | item->def.getG();
 165         tmp[2] = (item->def.getB() << 8) | item->def.getB();
 166         tmp[3] = 0xffff;
 167         tmp[4] = (item->_isLive || !item->_listeners.empty() || (item->_linkSrc != 0) ) ? 1 : 0;
 168
 169         tmp[5] = index;
 170         tmp[6] = paletteName.length();
 171         for ( unsigned int i = 0; i < paletteName.length(); i++ ) {
 172             tmp[7 + i] = paletteName[i];
 173         }
 174         gtk_selection_data_set( data,
 175                                 typeXColor,
 176                                 16, // format
 177                                 reinterpret_cast<const guchar*>(tmp),
 178                                 itemCount * 2);
 179         delete[] tmp;
 180     } else {
 181         guint16 tmp[4];
 182         tmp[0] = (item->def.getR() << 8) | item->def.getR();
 183         tmp[1] = (item->def.getG() << 8) | item->def.getG();
 184         tmp[2] = (item->def.getB() << 8) | item->def.getB();
 185         tmp[3] = 0xffff;
 186         gtk_selection_data_set( data,
 187                                 typeXColor,
 188                                 16, // format
 189                                 reinterpret_cast<const guchar*>(tmp),
 190                                 (3+1) * 2);
 191     }
 192 }
 193
 194 static void dragBegin( GtkWidget *widget, GdkDragContext* dc, gpointer data )
 195 {
 196     (void)widget;
 197     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 198     if ( item )
 199     {
 200         Glib::RefPtr<Gdk::Pixbuf> thumb = Gdk::Pixbuf::create( Gdk::COLORSPACE_RGB, false, 8, 32, 24 );
 201         guint32 fillWith = (0xff000000 & (item->def.getR() << 24))
 202                          | (0x00ff0000 & (item->def.getG() << 16))
 203                          | (0x0000ff00 & (item->def.getB() <<  8));
 204         thumb->fill( fillWith );
 205         gtk_drag_set_icon_pixbuf( dc, thumb->gobj(), 0, 0 );
 206     }
 207
 208 }
 209
 210 //"drag-drop"
 211 // gboolean dragDropColorData( GtkWidget *widget,
 212 //                             GdkDragContext *drag_context,
 213 //                             gint x,
 214 //                             gint y,
 215 //                             guint time,
 216 //                             gpointer user_data)
 217 // {
 218 // // TODO finish
 219
 220 //     return TRUE;
 221 // }
 222
 223 static void handleClick( GtkWidget* widget, gpointer callback_data ) {
 224     (void)widget;
 225     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 226     if ( item ) {
 227         item->buttonClicked(false);
 228     }
 229 }
 230
 231 static void handleSecondaryClick( GtkWidget* widget, gint arg1, gpointer callback_data ) {
 232     (void)widget;
 233     (void)arg1;
 234     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 235     if ( item ) {
 236         item->buttonClicked(true);
 237     }
 238 }
 239
 240 static gboolean handleEnterNotify( GtkWidget* /*widget*/, GdkEventCrossing* /*event*/, gpointer callback_data ) {
 241     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 242     if ( item ) {
 243         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 244         if ( desktop ) {
 245             gchar* msg = g_strdup_printf(_("Color: <b>%s</b>; <b>Click</b> to set fill, <b>Shift+click</b> to set stroke"),
 246                                          item->def.descr.c_str());
 247             desktop->tipsMessageContext()->set(Inkscape::INFORMATION_MESSAGE, msg);
 248             g_free(msg);
 249         }
 250     }
 251     return FALSE;
 252 }
 253
 254 static gboolean handleLeaveNotify( GtkWidget* /*widget*/, GdkEventCrossing* /*event*/, gpointer callback_data ) {
 255     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 256     if ( item ) {
 257         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 258         if ( desktop ) {
 259             desktop->tipsMessageContext()->clear();
 260         }
 261     }
 262     return FALSE;
 263 }
 264
 265 static GtkWidget* popupMenu = 0;
 266 static ColorItem* bounceTarget = 0;
 267
 268 static void redirClick( GtkMenuItem *menuitem, gpointer user_data )
 269 {
 270     (void)user_data;
 271     if ( bounceTarget ) {
 272         handleClick( GTK_WIDGET(menuitem), bounceTarget );
 273     }
 274 }
 275
 276 static void redirSecondaryClick( GtkMenuItem *menuitem, gpointer user_data )
 277 {
 278     (void)user_data;
 279     if ( bounceTarget ) {
 280         handleSecondaryClick( GTK_WIDGET(menuitem), 0, bounceTarget );
 281     }
 282 }
 283
 284 static gboolean handleButtonPress( GtkWidget* widget, GdkEventButton* event, gpointer user_data)
 285 {
 286     (void)widget;
 287     gboolean handled = FALSE;
 288
 289     if ( (event->button == 3) && (event->type == GDK_BUTTON_PRESS) ) {
 290         if ( !popupMenu ) {
 291             popupMenu = gtk_menu_new();
 292             GtkWidget* child = 0;
 293
 294             //TRANSLATORS: An item in context menu on a colour in the swatches
 295             child = gtk_menu_item_new_with_label(_("Set fill"));
 296             g_signal_connect( G_OBJECT(child),
 297                               "activate",
 298                               G_CALLBACK(redirClick),
 299                               user_data);
 300             gtk_menu_shell_append(GTK_MENU_SHELL(popupMenu), child);
 301
 302             //TRANSLATORS: An item in context menu on a colour in the swatches
 303             child = gtk_menu_item_new_with_label(_("Set stroke"));
 304
 305             g_signal_connect( G_OBJECT(child),
 306                               "activate",
 307                               G_CALLBACK(redirSecondaryClick),
 308                               user_data);
 309             gtk_menu_shell_append(GTK_MENU_SHELL(popupMenu), child);
 310
 311             gtk_widget_show_all(popupMenu);
 312         }
 313
 314         ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 315         if ( item ) {
 316             bounceTarget = item;
 317             if ( popupMenu ) {
 318                 gtk_menu_popup(GTK_MENU(popupMenu), NULL, NULL, NULL, NULL, event->button, event->time);
 319                 handled = TRUE;
 320             }
 321         }
 322     }
 323
 324     return handled;
 325 }
 326
 327 static void dieDieDie( GtkObject *obj, gpointer user_data )
 328 {
 329     g_message("die die die %p  %p", obj, user_data );
 330 }
 331
 332 static const GtkTargetEntry destColorTargets[] = {
 333 #if ENABLE_MAGIC_COLORS
 334 //    {"application/x-inkscape-color-id", GTK_TARGET_SAME_APP, APP_X_INKY_COLOR_ID},
 335     {"application/x-inkscape-color", 0, APP_X_INKY_COLOR},
 336 #endif // ENABLE_MAGIC_COLORS
 337     {"application/x-color", 0, APP_X_COLOR},
 338 };
 339
 340 #include "color.h" // for SP_RGBA32_U_COMPOSE
 341
 342 void ColorItem::_dropDataIn( GtkWidget *widget,
 343                              GdkDragContext *drag_context,
 344                              gint x, gint y,
 345                              GtkSelectionData *data,
 346                              guint info,
 347                              guint event_time,
 348                              gpointer user_data)
 349 {
 350     (void)widget;
 351     (void)drag_context;
 352     (void)x;
 353     (void)y;
 354     (void)event_time;
 355 //     g_message("    droppy droppy   %d", info);
 356      switch (info) {
 357          case APP_X_INKY_COLOR:
 358          {
 359              if ( data->length >= 8 ) {
 360                  // Careful about endian issues.
 361                  guint16* dataVals = (guint16*)data->data;
 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          case APP_X_COLOR:
 373          {
 374              if ( data->length == 8 ) {
 375                  // Careful about endian issues.
 376                  guint16* dataVals = (guint16*)data->data;
 377 //                  {
 378 //                      gchar c[64] = {0};
 379 //                      sp_svg_write_color( c, 64,
 380 //                                          SP_RGBA32_U_COMPOSE(
 381 //                                              0x0ff & (dataVals[0] >> 8),
 382 //                                              0x0ff & (dataVals[1] >> 8),
 383 //                                              0x0ff & (dataVals[2] >> 8),
 384 //                                              0xff // can't have transparency in the color itself
 385 //                                              //0x0ff & (data->data[3] >> 8),
 386 //                                              ));
 387 //                  }
 388                  if ( user_data ) {
 389                      ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 390                      if ( item->def.isEditable() ) {
 391                          // Shove on in the new value
 392                          item->def.setRGB( 0x0ff & (dataVals[0] >> 8), 0x0ff & (dataVals[1] >> 8), 0x0ff & (dataVals[2] >> 8) );
 393                      }
 394                  }
 395              }
 396              break;
 397          }
 398          default:
 399              g_message("unknown drop type");
 400      }
 401
 402 }
 403
 404 static bool bruteForce( SPDocument* document, Inkscape::XML::Node* node, Glib::ustring const& match, int r, int g, int b )
 405 {
 406     bool changed = false;
 407
 408     if ( node ) {
 409         gchar const * val = node->attribute("inkscape:x-fill-tag");
 410         if ( val  && (match == val) ) {
 411             SPObject *obj = document->getObjectByRepr( node );
 412
 413             gchar c[64] = {0};
 414             sp_svg_write_color( c, sizeof(c), SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 415             SPCSSAttr *css = sp_repr_css_attr_new();
 416             sp_repr_css_set_property( css, "fill", c );
 417
 418             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 419             ((SPItem*)obj)->updateRepr();
 420
 421             changed = true;
 422         }
 423
 424         val = node->attribute("inkscape:x-stroke-tag");
 425         if ( val  && (match == val) ) {
 426             SPObject *obj = document->getObjectByRepr( node );
 427
 428             gchar c[64] = {0};
 429             sp_svg_write_color( c, sizeof(c), SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 430             SPCSSAttr *css = sp_repr_css_attr_new();
 431             sp_repr_css_set_property( css, "stroke", c );
 432
 433             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 434             ((SPItem*)obj)->updateRepr();
 435
 436             changed = true;
 437         }
 438
 439         Inkscape::XML::Node* first = node->firstChild();
 440         changed |= bruteForce( document, first, match, r, g, b );
 441
 442         changed |= bruteForce( document, node->next(), match, r, g, b );
 443     }
 444
 445     return changed;
 446 }
 447
 448 void ColorItem::_colorDefChanged(void* data)
 449 {
 450     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 451     if ( item ) {
 452         for ( std::vector<Gtk::Widget*>::iterator it =  item->_previews.begin(); it != item->_previews.end(); ++it ) {
 453             Gtk::Widget* widget = *it;
 454             if ( IS_EEK_PREVIEW(widget->gobj()) ) {
 455                 EekPreview * preview = EEK_PREVIEW(widget->gobj());
 456                 eek_preview_set_color( preview,
 457                                        (item->def.getR() << 8) | item->def.getR(),
 458                                        (item->def.getG() << 8) | item->def.getG(),
 459                                        (item->def.getB() << 8) | item->def.getB() );
 460
 461                 eek_preview_set_linked( preview, (LinkType)((item->_linkSrc ? PREVIEW_LINK_IN:0)
 462                                                             | (item->_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 463                                                             | (item->_isLive ? PREVIEW_LINK_OTHER:0)) );
 464
 465                 widget->queue_draw();
 466             }
 467         }
 468
 469         for ( std::vector<ColorItem*>::iterator it = item->_listeners.begin(); it != item->_listeners.end(); ++it ) {
 470             guint r = item->def.getR();
 471             guint g = item->def.getG();
 472             guint b = item->def.getB();
 473
 474             if ( (*it)->_linkIsTone ) {
 475                 r = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 476                 g = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 477                 b = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 478             } else {
 479                 r = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 480                 g = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 481                 b = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 482             }
 483
 484             (*it)->def.setRGB( r, g, b );
 485         }
 486
 487
 488         // Look for objects using this color
 489         {
 490             SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 491             if ( desktop ) {
 492                 SPDocument* document = sp_desktop_document( desktop );
 493                 Inkscape::XML::Node *rroot =  sp_document_repr_root( document );
 494                 if ( rroot ) {
 495
 496                     // Find where this thing came from
 497                     Glib::ustring paletteName;
 498                     bool found = false;
 499                     int index = 0;
 500                     for ( std::vector<JustForNow*>::iterator it2 = possible.begin(); it2 != possible.end() && !found; ++it2 ) {
 501                         JustForNow* curr = *it2;
 502                         index = 0;
 503                         for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 504                             if ( item == *zz ) {
 505                                 found = true;
 506                                 paletteName = curr->_name;
 507                                 break;
 508                             } else {
 509                                 index++;
 510                             }
 511                         }
 512                     }
 513
 514                     if ( !paletteName.empty() ) {
 515                         gchar* str = g_strdup_printf("%d|", index);
 516                         paletteName.insert( 0, str );
 517                         g_free(str);
 518                         str = 0;
 519
 520                         if ( bruteForce( document, rroot, paletteName, item->def.getR(), item->def.getG(), item->def.getB() ) ) {
 521                             sp_document_done( document , SP_VERB_DIALOG_SWATCHES,
 522                                               _("Change color definition"));
 523                         }
 524                     }
 525                 }
 526             }
 527         }
 528     }
 529 }
 530
 531
 532 Gtk::Widget* ColorItem::getPreview(PreviewStyle style, ViewType view, ::PreviewSize size, guint ratio)
 533 {
 534     Gtk::Widget* widget = 0;
 535     if ( style == PREVIEW_STYLE_BLURB ) {
 536         Gtk::Label *lbl = new Gtk::Label(def.descr);
 537         lbl->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
 538         widget = lbl;
 539     } else {
 540 //         Glib::ustring blank("          ");
 541 //         if ( size == Inkscape::ICON_SIZE_MENU || size == Inkscape::ICON_SIZE_DECORATION ) {
 542 //             blank = " ";
 543 //         }
 544
 545         GtkWidget* eekWidget = eek_preview_new();
 546         EekPreview * preview = EEK_PREVIEW(eekWidget);
 547         Gtk::Widget* newBlot = Glib::wrap(eekWidget);
 548
 549         eek_preview_set_color( preview, (def.getR() << 8) | def.getR(), (def.getG() << 8) | def.getG(), (def.getB() << 8) | def.getB());
 550
 551         eek_preview_set_details( preview, (::PreviewStyle)style, (::ViewType)view, (::PreviewSize)size, ratio );
 552         eek_preview_set_linked( preview, (LinkType)((_linkSrc ? PREVIEW_LINK_IN:0)
 553                                                     | (_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 554                                                     | (_isLive ? PREVIEW_LINK_OTHER:0)) );
 555
 556         def.addCallback( _colorDefChanged, this );
 557
 558         GValue val = {0, {{0}, {0}}};
 559         g_value_init( &val, G_TYPE_BOOLEAN );
 560         g_value_set_boolean( &val, FALSE );
 561         g_object_set_property( G_OBJECT(preview), "focus-on-click", &val );
 562
 563 /*
 564         Gtk::Button *btn = new Gtk::Button(blank);
 565         Gdk::Color color;
 566         color.set_rgb((_r << 8)|_r, (_g << 8)|_g, (_b << 8)|_b);
 567         btn->modify_bg(Gtk::STATE_NORMAL, color);
 568         btn->modify_bg(Gtk::STATE_ACTIVE, color);
 569         btn->modify_bg(Gtk::STATE_PRELIGHT, color);
 570         btn->modify_bg(Gtk::STATE_SELECTED, color);
 571
 572         Gtk::Widget* newBlot = btn;
 573 */
 574
 575         tips.set_tip((*newBlot), def.descr);
 576
 577 /*
 578         newBlot->signal_clicked().connect( sigc::mem_fun(*this, &ColorItem::buttonClicked) );
 579
 580         sigc::signal<void> type_signal_something;
 581 */
 582
 583         g_signal_connect( G_OBJECT(newBlot->gobj()),
 584                           "clicked",
 585                           G_CALLBACK(handleClick),
 586                           this);
 587
 588         g_signal_connect( G_OBJECT(newBlot->gobj()),
 589                           "alt-clicked",
 590                           G_CALLBACK(handleSecondaryClick),
 591                           this);
 592
 593         g_signal_connect( G_OBJECT(newBlot->gobj()),
 594                           "button-press-event",
 595                           G_CALLBACK(handleButtonPress),
 596                           this);
 597
 598         gtk_drag_source_set( GTK_WIDGET(newBlot->gobj()),
 599                              GDK_BUTTON1_MASK,
 600                              sourceColorEntries,
 601                              G_N_ELEMENTS(sourceColorEntries),
 602                              GdkDragAction(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
 603
 604         g_signal_connect( G_OBJECT(newBlot->gobj()),
 605                           "drag-data-get",
 606                           G_CALLBACK(ColorItem::_dragGetColorData),
 607                           this);
 608
 609         g_signal_connect( G_OBJECT(newBlot->gobj()),
 610                           "drag-begin",
 611                           G_CALLBACK(dragBegin),
 612                           this );
 613
 614         g_signal_connect( G_OBJECT(newBlot->gobj()),
 615                           "enter-notify-event",
 616                           G_CALLBACK(handleEnterNotify),
 617                           this);
 618
 619         g_signal_connect( G_OBJECT(newBlot->gobj()),
 620                           "leave-notify-event",
 621                           G_CALLBACK(handleLeaveNotify),
 622                           this);
 623
 624 //         g_signal_connect( G_OBJECT(newBlot->gobj()),
 625 //                           "drag-drop",
 626 //                           G_CALLBACK(dragDropColorData),
 627 //                           this);
 628
 629         if ( def.isEditable() )
 630         {
 631             gtk_drag_dest_set( GTK_WIDGET(newBlot->gobj()),
 632                                GTK_DEST_DEFAULT_ALL,
 633                                destColorTargets,
 634                                G_N_ELEMENTS(destColorTargets),
 635                                GdkDragAction(GDK_ACTION_COPY | GDK_ACTION_MOVE) );
 636
 637
 638             g_signal_connect( G_OBJECT(newBlot->gobj()),
 639                               "drag-data-received",
 640                               G_CALLBACK(_dropDataIn),
 641                               this );
 642         }
 643
 644         g_signal_connect( G_OBJECT(newBlot->gobj()),
 645                           "destroy",
 646                           G_CALLBACK(dieDieDie),
 647                           this);
 648
 649
 650         widget = newBlot;
 651     }
 652
 653     _previews.push_back( widget );
 654
 655     return widget;
 656 }
 657
 658 void ColorItem::buttonClicked(bool secondary)
 659 {
 660     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 661     if (desktop) {
 662         char const * attrName = secondary ? "stroke" : "fill";
 663         guint32 rgba = (def.getR() << 24) | (def.getG() << 16) | (def.getB() << 8) | 0xff;
 664         gchar c[64];
 665         sp_svg_write_color(c, sizeof(c), rgba);
 666
 667         SPCSSAttr *css = sp_repr_css_attr_new();
 668         sp_repr_css_set_property( css, attrName, c );
 669         sp_desktop_set_style(desktop, css);
 670
 671         sp_repr_css_attr_unref(css);
 672         sp_document_done (sp_desktop_document (desktop), SP_VERB_DIALOG_SWATCHES,
 673                           secondary? _("Set stroke color from swatch") : _("Set fill color from swatch"));
 674     }
 675 }
 676
 677
 678
 679
 680 static char* trim( char* str ) {
 681     char* ret = str;
 682     while ( *str && (*str == ' ' || *str == '\t') ) {
 683         str++;
 684     }
 685     ret = str;
 686     while ( *str ) {
 687         str++;
 688     }
 689     str--;
 690     while ( str > ret && ( *str == ' ' || *str == '\t' ) || *str == '\r' || *str == '\n' ) {
 691         *str-- = 0;
 692     }
 693     return ret;
 694 }
 695
 696 void skipWhitespace( char*& str ) {
 697     while ( *str == ' ' || *str == '\t' ) {
 698         str++;
 699     }
 700 }
 701
 702 bool parseNum( char*& str, int& val ) {
 703     val = 0;
 704     while ( '0' <= *str && *str <= '9' ) {
 705         val = val * 10 + (*str - '0');
 706         str++;
 707     }
 708     bool retval = !(*str == 0 || *str == ' ' || *str == '\t' || *str == '\r' || *str == '\n');
 709     return retval;
 710 }
 711
 712
 713 static bool getBlock( std::string& dst, guchar ch, std::string const str )
 714 {
 715     bool good = false;
 716     std::string::size_type pos = str.find(ch);
 717     if ( pos != std::string::npos )
 718     {
 719         std::string::size_type pos2 = str.find( '(', pos );
 720         if ( pos2 != std::string::npos ) {
 721             std::string::size_type endPos = str.find( ')', pos2 );
 722             if ( endPos != std::string::npos ) {
 723                 dst = str.substr( pos2 + 1, (endPos - pos2 - 1) );
 724                 good = true;
 725             }
 726         }
 727     }
 728     return good;
 729 }
 730
 731 static bool popVal( guint64& numVal, std::string& str )
 732 {
 733     bool good = false;
 734     std::string::size_type endPos = str.find(',');
 735     if ( endPos == std::string::npos ) {
 736         endPos = str.length();
 737     }
 738
 739     if ( endPos != std::string::npos && endPos > 0 ) {
 740         std::string xxx = str.substr( 0, endPos );
 741         const gchar* ptr = xxx.c_str();
 742         gchar* endPtr = 0;
 743         numVal = g_ascii_strtoull( ptr, &endPtr, 10 );
 744         if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 745             // overflow
 746         } else if ( (numVal == 0) && (endPtr == ptr) ) {
 747             // failed conversion
 748         } else {
 749             good = true;
 750             str.erase( 0, endPos + 1 );
 751         }
 752     }
 753
 754     return good;
 755 }
 756
 757 void ColorItem::_wireMagicColors( void* p )
 758 {
 759     JustForNow* onceMore = reinterpret_cast<JustForNow*>(p);
 760     if ( onceMore )
 761     {
 762         for ( std::vector<ColorItem*>::iterator it = onceMore->_colors.begin(); it != onceMore->_colors.end(); ++it )
 763         {
 764             std::string::size_type pos = (*it)->def.descr.find("*{");
 765             if ( pos != std::string::npos )
 766             {
 767                 std::string subby = (*it)->def.descr.substr( pos + 2 );
 768                 std::string::size_type endPos = subby.find("}*");
 769                 if ( endPos != std::string::npos )
 770                 {
 771                     subby.erase( endPos );
 772                     //g_message("FOUND MAGIC at '%s'", (*it)->def.descr.c_str());
 773                     //g_message("               '%s'", subby.c_str());
 774
 775                     if ( subby.find('E') != std::string::npos )
 776                     {
 777                         (*it)->def.setEditable( true );
 778                     }
 779
 780                     if ( subby.find('L') != std::string::npos )
 781                     {
 782                         (*it)->_isLive = true;
 783                     }
 784
 785                     std::string part;
 786                     // Tint. index + 1 more val.
 787                     if ( getBlock( part, 'T', subby ) ) {
 788                         guint64 colorIndex = 0;
 789                         if ( popVal( colorIndex, part ) ) {
 790                             guint64 percent = 0;
 791                             if ( popVal( percent, part ) ) {
 792                                 (*it)->_linkTint( *(onceMore->_colors[colorIndex]), percent );
 793                             }
 794                         }
 795                     }
 796
 797                     // Shade/tone. index + 1 or 2 more val.
 798                     if ( getBlock( part, 'S', subby ) ) {
 799                         guint64 colorIndex = 0;
 800                         if ( popVal( colorIndex, part ) ) {
 801                             guint64 percent = 0;
 802                             if ( popVal( percent, part ) ) {
 803                                 guint64 grayLevel = 0;
 804                                 if ( !popVal( grayLevel, part ) ) {
 805                                     grayLevel = 0;
 806                                 }
 807                                 (*it)->_linkTone( *(onceMore->_colors[colorIndex]), percent, grayLevel );
 808                             }
 809                         }
 810                     }
 811
 812                 }
 813             }
 814         }
 815     }
 816 }
 817
 818
 819 void ColorItem::_linkTint( ColorItem& other, int percent )
 820 {
 821     if ( !_linkSrc )
 822     {
 823         other._listeners.push_back(this);
 824         _linkIsTone = false;
 825         _linkPercent = percent;
 826         if ( _linkPercent > 100 )
 827             _linkPercent = 100;
 828         if ( _linkPercent < 0 )
 829             _linkPercent = 0;
 830         _linkGray = 0;
 831         _linkSrc = &other;
 832
 833         ColorItem::_colorDefChanged(&other);
 834     }
 835 }
 836
 837 void ColorItem::_linkTone( ColorItem& other, int percent, int grayLevel )
 838 {
 839     if ( !_linkSrc )
 840     {
 841         other._listeners.push_back(this);
 842         _linkIsTone = true;
 843         _linkPercent = percent;
 844         if ( _linkPercent > 100 )
 845             _linkPercent = 100;
 846         if ( _linkPercent < 0 )
 847             _linkPercent = 0;
 848         _linkGray = grayLevel;
 849         _linkSrc = &other;
 850
 851         ColorItem::_colorDefChanged(&other);
 852     }
 853 }
 854
 855
 856 void _loadPaletteFile( gchar const *filename )
 857 {
 858     char block[1024];
 859     FILE *f = Inkscape::IO::fopen_utf8name( filename, "r" );
 860     if ( f ) {
 861         char* result = fgets( block, sizeof(block), f );
 862         if ( result ) {
 863             if ( strncmp( "GIMP Palette", block, 12 ) == 0 ) {
 864                 bool inHeader = true;
 865                 bool hasErr = false;
 866
 867                 JustForNow *onceMore = new JustForNow();
 868
 869                 do {
 870                     result = fgets( block, sizeof(block), f );
 871                     block[sizeof(block) - 1] = 0;
 872                     if ( result ) {
 873                         if ( block[0] == '#' ) {
 874                             // ignore comment
 875                         } else {
 876                             char *ptr = block;
 877                             // very simple check for header versus entry
 878                             while ( *ptr == ' ' || *ptr == '\t' ) {
 879                                 ptr++;
 880                             }
 881                             if ( (*ptr == 0) || (*ptr == '\r') || (*ptr == '\n') ) {
 882                                 // blank line. skip it.
 883                             } else if ( '0' <= *ptr && *ptr <= '9' ) {
 884                                 // should be an entry link
 885                                 inHeader = false;
 886                                 ptr = block;
 887                                 Glib::ustring name("");
 888                                 int r = 0;
 889                                 int g = 0;
 890                                 int b = 0;
 891                                 skipWhitespace(ptr);
 892                                 if ( *ptr ) {
 893                                     hasErr = parseNum(ptr, r);
 894                                     if ( !hasErr ) {
 895                                         skipWhitespace(ptr);
 896                                         hasErr = parseNum(ptr, g);
 897                                     }
 898                                     if ( !hasErr ) {
 899                                         skipWhitespace(ptr);
 900                                         hasErr = parseNum(ptr, b);
 901                                     }
 902                                     if ( !hasErr && *ptr ) {
 903                                         char* n = trim(ptr);
 904                                         if (n != NULL) {
 905                                             name = n;
 906                                         }
 907                                     }
 908                                     if ( !hasErr ) {
 909                                         // Add the entry now
 910                                         Glib::ustring nameStr(name);
 911                                         ColorItem* item = new ColorItem( r, g, b, nameStr );
 912                                         onceMore->_colors.push_back(item);
 913                                     }
 914                                 } else {
 915                                     hasErr = true;
 916                                 }
 917                             } else {
 918                                 if ( !inHeader ) {
 919                                     // Hmmm... probably bad. Not quite the format we want?
 920                                     hasErr = true;
 921                                 } else {
 922                                     char* sep = strchr(result, ':');
 923                                     if ( sep ) {
 924                                         *sep = 0;
 925                                         char* val = trim(sep + 1);
 926                                         char* name = trim(result);
 927                                         if ( *name ) {
 928                                             if ( strcmp( "Name", name ) == 0 )
 929                                             {
 930                                                 onceMore->_name = val;
 931                                             }
 932                                             else if ( strcmp( "Columns", name ) == 0 )
 933                                             {
 934                                                 gchar* endPtr = 0;
 935                                                 guint64 numVal = g_ascii_strtoull( val, &endPtr, 10 );
 936                                                 if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 937                                                     // overflow
 938                                                 } else if ( (numVal == 0) && (endPtr == val) ) {
 939                                                     // failed conversion
 940                                                 } else {
 941                                                     onceMore->_prefWidth = numVal;
 942                                                 }
 943                                             }
 944                                         } else {
 945                                             // error
 946                                             hasErr = true;
 947                                         }
 948                                     } else {
 949                                         // error
 950                                         hasErr = true;
 951                                     }
 952                                 }
 953                             }
 954                         }
 955                     }
 956                 } while ( result && !hasErr );
 957                 if ( !hasErr ) {
 958                     possible.push_back(onceMore);
 959 #if ENABLE_MAGIC_COLORS
 960                     ColorItem::_wireMagicColors( onceMore );
 961 #endif // ENABLE_MAGIC_COLORS
 962                 } else {
 963                     delete onceMore;
 964                 }
 965             }
 966         }
 967
 968         fclose(f);
 969     }
 970 }
 971
 972 static void loadEmUp()
 973 {
 974     static bool beenHere = false;
 975     if ( !beenHere ) {
 976         beenHere = true;
 977
 978         std::list<gchar *> sources;
 979         sources.push_back( profile_path("palettes") );
 980         sources.push_back( g_strdup(INKSCAPE_PALETTESDIR) );
 981         sources.push_back( g_strdup(CREATE_PALETTESDIR) );
 982
 983         // Use this loop to iterate through a list of possible document locations.
 984         while (!sources.empty()) {
 985             gchar *dirname = sources.front();
 986
 987             if ( Inkscape::IO::file_test( dirname, G_FILE_TEST_EXISTS )
 988                 && Inkscape::IO::file_test( dirname, G_FILE_TEST_IS_DIR )) {
 989                 GError *err = 0;
 990                 GDir *directory = g_dir_open(dirname, 0, &err);
 991                 if (!directory) {
 992                     gchar *safeDir = Inkscape::IO::sanitizeString(dirname);
 993                     g_warning(_("Palettes directory (%s) is unavailable."), safeDir);
 994                     g_free(safeDir);
 995                 } else {
 996                     gchar *filename = 0;
 997                     while ((filename = (gchar *)g_dir_read_name(directory)) != NULL) {
 998                         gchar* lower = g_ascii_strdown( filename, -1 );
 999 //                        if ( g_str_has_suffix(lower, ".gpl") ) {
1000                             gchar* full = g_build_filename(dirname, filename, NULL);
1001                             if ( !Inkscape::IO::file_test( full, G_FILE_TEST_IS_DIR ) ) {
1002                                 _loadPaletteFile(full);
1003                             }
1004                             g_free(full);
1005 //                      }
1006                         g_free(lower);
1007                     }
1008                     g_dir_close(directory);
1009                 }
1010             }
1011
1012             // toss the dirname
1013             g_free(dirname);
1014             sources.pop_front();
1015         }
1016     }
1017 }
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027 SwatchesPanel& SwatchesPanel::getInstance()
1028 {
1029     return *new SwatchesPanel();
1030 }
1031
1032
1033 /**
1034  * Constructor
1035  */
1036 SwatchesPanel::SwatchesPanel(gchar const* prefsPath) :
1037     Inkscape::UI::Widget::Panel("", prefsPath, SP_VERB_DIALOG_SWATCHES, "", true),
1038     _holder(0)
1039 {
1040     Gtk::RadioMenuItem* hotItem = 0;
1041     _holder = new PreviewHolder();
1042     loadEmUp();
1043
1044     if ( !possible.empty() ) {
1045         JustForNow* first = 0;
1046         Glib::ustring targetName;
1047         if ( !_prefs_path.empty() ) {
1048             Inkscape::Preferences *prefs = Inkscape::Preferences::get();
1049             targetName = prefs->getString(_prefs_path + "/palette");
1050             if (!targetName.empty()) {
1051                 for ( std::vector<JustForNow*>::iterator iter = possible.begin(); iter != possible.end(); ++iter ) {
1052                     if ( (*iter)->_name == targetName ) {
1053                         first = *iter;
1054                         break;
1055                     }
1056                 }
1057             }
1058         }
1059
1060         if ( !first ) {
1061             first = possible.front();
1062         }
1063
1064         if ( first->_prefWidth > 0 ) {
1065             _holder->setColumnPref( first->_prefWidth );
1066         }
1067         _holder->freezeUpdates();
1068         for ( std::vector<ColorItem*>::iterator it = first->_colors.begin(); it != first->_colors.end(); it++ ) {
1069             _holder->addPreview(*it);
1070         }
1071         _holder->thawUpdates();
1072
1073         Gtk::RadioMenuItem::Group groupOne;
1074         int i = 0;
1075         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end(); it++ ) {
1076             JustForNow* curr = *it;
1077             Gtk::RadioMenuItem* single = manage(new Gtk::RadioMenuItem(groupOne, curr->_name));
1078             if ( curr == first ) {
1079                 hotItem = single;
1080             }
1081             _regItem( single, 3, i );
1082             i++;
1083         }
1084
1085     }
1086
1087
1088     _getContents()->pack_start(*_holder, Gtk::PACK_EXPAND_WIDGET);
1089     _setTargetFillable(_holder);
1090
1091     show_all_children();
1092
1093     restorePanelPrefs();
1094     if ( hotItem ) {
1095         hotItem->set_active();
1096     }
1097 }
1098
1099 SwatchesPanel::~SwatchesPanel()
1100 {
1101 }
1102
1103 void SwatchesPanel::setOrientation( Gtk::AnchorType how )
1104 {
1105     // Must call the parent class or bad things might happen
1106     Inkscape::UI::Widget::Panel::setOrientation( how );
1107
1108     if ( _holder )
1109     {
1110         _holder->setOrientation( Gtk::ANCHOR_SOUTH );
1111     }
1112 }
1113
1114 void SwatchesPanel::_handleAction( int setId, int itemId )
1115 {
1116     switch( setId ) {
1117         case 3:
1118         {
1119             if ( itemId >= 0 && itemId < static_cast<int>(possible.size()) ) {
1120                 _holder->clear();
1121                 JustForNow* curr = possible[itemId];
1122
1123                 if ( !_prefs_path.empty() ) {
1124                     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
1125                     prefs->setString(_prefs_path + "/palette", curr->_name);
1126                 }
1127
1128                 if ( curr->_prefWidth > 0 ) {
1129                     _holder->setColumnPref( curr->_prefWidth );
1130                 }
1131                 _holder->freezeUpdates();
1132                 for ( std::vector<ColorItem*>::iterator it = curr->_colors.begin(); it != curr->_colors.end(); it++ ) {
1133                     _holder->addPreview(*it);
1134                 }
1135                 _holder->thawUpdates();
1136             }
1137         }
1138         break;
1139     }
1140 }
1141
1142 } //namespace Dialogs
1143 } //namespace UI
1144 } //namespace Inkscape
1145
1146
1147 /*
1148   Local Variables:
1149   mode:c++
1150   c-file-style:"stroustrup"
1151   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1152   indent-tabs-mode:nil
1153   fill-column:99
1154   End:
1155 */
1156 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :