src/ui/dialog/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 #include <map>
  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 #include <glibmm/i18n.h>
  23 #include <gdkmm/pixbuf.h>
  24
  25 #include "desktop.h"
  26 #include "desktop-handles.h"
  27 #include "desktop-style.h"
  28 #include "document.h"
  29 #include "extension/db.h"
  30 #include "inkscape.h"
  31 #include "inkscape.h"
  32 #include "io/sys.h"
  33 #include "io/resource.h"
  34 #include "message-context.h"
  35 #include "path-prefix.h"
  36 #include "preferences.h"
  37 #include "sp-item.h"
  38 #include "svg/svg-color.h"
  39 #include "sp-gradient-fns.h"
  40 #include "sp-gradient.h"
  41 #include "sp-gradient-vector.h"
  42 #include "swatches.h"
  43 #include "widgets/eek-preview.h"
  44
  45 namespace Inkscape {
  46 namespace UI {
  47 namespace Dialogs {
  48
  49
  50 ColorItem::ColorItem(ege::PaintDef::ColorType type) :
  51     def(type),
  52     _isLive(false),
  53     _linkIsTone(false),
  54     _linkPercent(0),
  55     _linkGray(0),
  56     _linkSrc(0)
  57 {
  58 }
  59
  60 ColorItem::ColorItem( unsigned int r, unsigned int g, unsigned int b, Glib::ustring& name ) :
  61     def( r, g, b, name ),
  62     _isLive(false),
  63     _linkIsTone(false),
  64     _linkPercent(0),
  65     _linkGray(0),
  66     _linkSrc(0)
  67 {
  68 }
  69
  70 ColorItem::~ColorItem()
  71 {
  72 }
  73
  74 ColorItem::ColorItem(ColorItem const &other) :
  75     Inkscape::UI::Previewable()
  76 {
  77     if ( this != &other ) {
  78         *this = other;
  79     }
  80 }
  81
  82 ColorItem &ColorItem::operator=(ColorItem const &other)
  83 {
  84     if ( this != &other ) {
  85         def = other.def;
  86
  87         // TODO - correct linkage
  88         _linkSrc = other._linkSrc;
  89         g_message("Erk!");
  90     }
  91     return *this;
  92 }
  93
  94
  95 class JustForNow
  96 {
  97 public:
  98     JustForNow() : _prefWidth(0) {}
  99
 100     Glib::ustring _name;
 101     int _prefWidth;
 102     std::vector<ColorItem*> _colors;
 103 };
 104
 105 static std::vector<JustForNow*> possible;
 106
 107
 108 static std::vector<std::string> mimeStrings;
 109 static std::map<std::string, guint> mimeToInt;
 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     ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 119     std::string key;
 120     if ( info < mimeStrings.size() ) {
 121         key = mimeStrings[info];
 122     } else {
 123         g_warning("ERROR: unknown value (%d)", info);
 124     }
 125
 126     if ( !key.empty() ) {
 127         char* tmp = 0;
 128         int len = 0;
 129         int format = 0;
 130         item->def.getMIMEData(key, tmp, len, format);
 131         if ( tmp ) {
 132             GdkAtom dataAtom = gdk_atom_intern( key.c_str(), FALSE );
 133             gtk_selection_data_set( data, dataAtom, format, (guchar*)tmp, len );
 134             delete[] tmp;
 135         }
 136     }
 137 }
 138
 139 static void dragBegin( GtkWidget */*widget*/, GdkDragContext* dc, gpointer data )
 140 {
 141     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 142     if ( item )
 143     {
 144         using Inkscape::IO::Resource::get_path;
 145         using Inkscape::IO::Resource::ICONS;
 146         using Inkscape::IO::Resource::SYSTEM;
 147
 148         if (item->def.getType() != ege::PaintDef::RGB){
 149             GError *error = NULL;
 150             gsize bytesRead = 0;
 151             gsize bytesWritten = 0;
 152             gchar *localFilename = g_filename_from_utf8( get_path(SYSTEM, ICONS, "remove-color.png"),
 153                                                  -1,
 154                                                  &bytesRead,
 155                                                  &bytesWritten,
 156                                                  &error);
 157             GdkPixbuf* pixbuf = gdk_pixbuf_new_from_file_at_scale(localFilename, 32, 24, FALSE, &error);
 158             g_free(localFilename);
 159             gtk_drag_set_icon_pixbuf( dc, pixbuf, 0, 0 );
 160             return;
 161         }
 162
 163         Glib::RefPtr<Gdk::Pixbuf> thumb = Gdk::Pixbuf::create( Gdk::COLORSPACE_RGB, false, 8, 32, 24 );
 164         guint32 fillWith = (0xff000000 & (item->def.getR() << 24))
 165                          | (0x00ff0000 & (item->def.getG() << 16))
 166                          | (0x0000ff00 & (item->def.getB() <<  8));
 167         thumb->fill( fillWith );
 168         gtk_drag_set_icon_pixbuf( dc, thumb->gobj(), 0, 0 );
 169     }
 170
 171 }
 172
 173 //"drag-drop"
 174 // gboolean dragDropColorData( GtkWidget *widget,
 175 //                             GdkDragContext *drag_context,
 176 //                             gint x,
 177 //                             gint y,
 178 //                             guint time,
 179 //                             gpointer user_data)
 180 // {
 181 // // TODO finish
 182
 183 //     return TRUE;
 184 // }
 185
 186 static void handleClick( GtkWidget* /*widget*/, gpointer callback_data ) {
 187     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 188     if ( item ) {
 189         item->buttonClicked(false);
 190     }
 191 }
 192
 193 static void handleSecondaryClick( GtkWidget* /*widget*/, gint /*arg1*/, gpointer callback_data ) {
 194     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 195     if ( item ) {
 196         item->buttonClicked(true);
 197     }
 198 }
 199
 200 static gboolean handleEnterNotify( GtkWidget* /*widget*/, GdkEventCrossing* /*event*/, gpointer callback_data ) {
 201     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 202     if ( item ) {
 203         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 204         if ( desktop ) {
 205             gchar* msg = g_strdup_printf(_("Color: <b>%s</b>; <b>Click</b> to set fill, <b>Shift+click</b> to set stroke"),
 206                                          item->def.descr.c_str());
 207             desktop->tipsMessageContext()->set(Inkscape::INFORMATION_MESSAGE, msg);
 208             g_free(msg);
 209         }
 210     }
 211     return FALSE;
 212 }
 213
 214 static gboolean handleLeaveNotify( GtkWidget* /*widget*/, GdkEventCrossing* /*event*/, gpointer callback_data ) {
 215     ColorItem* item = reinterpret_cast<ColorItem*>(callback_data);
 216     if ( item ) {
 217         SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 218         if ( desktop ) {
 219             desktop->tipsMessageContext()->clear();
 220         }
 221     }
 222     return FALSE;
 223 }
 224
 225 static GtkWidget* popupMenu = 0;
 226 static ColorItem* bounceTarget = 0;
 227
 228 static void redirClick( GtkMenuItem *menuitem, gpointer /*user_data*/ )
 229 {
 230     if ( bounceTarget ) {
 231         handleClick( GTK_WIDGET(menuitem), bounceTarget );
 232     }
 233 }
 234
 235 static void redirSecondaryClick( GtkMenuItem *menuitem, gpointer /*user_data*/ )
 236 {
 237     if ( bounceTarget ) {
 238         handleSecondaryClick( GTK_WIDGET(menuitem), 0, bounceTarget );
 239     }
 240 }
 241
 242 static gboolean handleButtonPress( GtkWidget* /*widget*/, GdkEventButton* event, gpointer user_data)
 243 {
 244     gboolean handled = FALSE;
 245
 246     if ( (event->button == 3) && (event->type == GDK_BUTTON_PRESS) ) {
 247         if ( !popupMenu ) {
 248             popupMenu = gtk_menu_new();
 249             GtkWidget* child = 0;
 250
 251             //TRANSLATORS: An item in context menu on a colour in the swatches
 252             child = gtk_menu_item_new_with_label(_("Set fill"));
 253             g_signal_connect( G_OBJECT(child),
 254                               "activate",
 255                               G_CALLBACK(redirClick),
 256                               user_data);
 257             gtk_menu_shell_append(GTK_MENU_SHELL(popupMenu), child);
 258
 259             //TRANSLATORS: An item in context menu on a colour in the swatches
 260             child = gtk_menu_item_new_with_label(_("Set stroke"));
 261
 262             g_signal_connect( G_OBJECT(child),
 263                               "activate",
 264                               G_CALLBACK(redirSecondaryClick),
 265                               user_data);
 266             gtk_menu_shell_append(GTK_MENU_SHELL(popupMenu), child);
 267
 268             gtk_widget_show_all(popupMenu);
 269         }
 270
 271         ColorItem* item = reinterpret_cast<ColorItem*>(user_data);
 272         if ( item ) {
 273             bounceTarget = item;
 274             if ( popupMenu ) {
 275                 gtk_menu_popup(GTK_MENU(popupMenu), NULL, NULL, NULL, NULL, event->button, event->time);
 276                 handled = TRUE;
 277             }
 278         }
 279     }
 280
 281     return handled;
 282 }
 283
 284 static void dieDieDie( GtkObject *obj, gpointer user_data )
 285 {
 286     g_message("die die die %p  %p", obj, user_data );
 287 }
 288
 289 #include "color.h" // for SP_RGBA32_U_COMPOSE
 290
 291 void ColorItem::_dropDataIn( GtkWidget */*widget*/,
 292                              GdkDragContext */*drag_context*/,
 293                              gint /*x*/, gint /*y*/,
 294                              GtkSelectionData */*data*/,
 295                              guint /*info*/,
 296                              guint /*event_time*/,
 297                              gpointer /*user_data*/)
 298 {
 299 }
 300
 301 static bool bruteForce( SPDocument* document, Inkscape::XML::Node* node, Glib::ustring const& match, int r, int g, int b )
 302 {
 303     bool changed = false;
 304
 305     if ( node ) {
 306         gchar const * val = node->attribute("inkscape:x-fill-tag");
 307         if ( val  && (match == val) ) {
 308             SPObject *obj = document->getObjectByRepr( node );
 309
 310             gchar c[64] = {0};
 311             sp_svg_write_color( c, sizeof(c), SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 312             SPCSSAttr *css = sp_repr_css_attr_new();
 313             sp_repr_css_set_property( css, "fill", c );
 314
 315             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 316             ((SPItem*)obj)->updateRepr();
 317
 318             changed = true;
 319         }
 320
 321         val = node->attribute("inkscape:x-stroke-tag");
 322         if ( val  && (match == val) ) {
 323             SPObject *obj = document->getObjectByRepr( node );
 324
 325             gchar c[64] = {0};
 326             sp_svg_write_color( c, sizeof(c), SP_RGBA32_U_COMPOSE( r, g, b, 0xff ) );
 327             SPCSSAttr *css = sp_repr_css_attr_new();
 328             sp_repr_css_set_property( css, "stroke", c );
 329
 330             sp_desktop_apply_css_recursive( (SPItem*)obj, css, true );
 331             ((SPItem*)obj)->updateRepr();
 332
 333             changed = true;
 334         }
 335
 336         Inkscape::XML::Node* first = node->firstChild();
 337         changed |= bruteForce( document, first, match, r, g, b );
 338
 339         changed |= bruteForce( document, node->next(), match, r, g, b );
 340     }
 341
 342     return changed;
 343 }
 344
 345 void ColorItem::_colorDefChanged(void* data)
 346 {
 347     ColorItem* item = reinterpret_cast<ColorItem*>(data);
 348     if ( item ) {
 349         for ( std::vector<Gtk::Widget*>::iterator it =  item->_previews.begin(); it != item->_previews.end(); ++it ) {
 350             Gtk::Widget* widget = *it;
 351             if ( IS_EEK_PREVIEW(widget->gobj()) ) {
 352                 EekPreview * preview = EEK_PREVIEW(widget->gobj());
 353                 eek_preview_set_color( preview,
 354                                        (item->def.getR() << 8) | item->def.getR(),
 355                                        (item->def.getG() << 8) | item->def.getG(),
 356                                        (item->def.getB() << 8) | item->def.getB() );
 357
 358                 eek_preview_set_linked( preview, (LinkType)((item->_linkSrc ? PREVIEW_LINK_IN:0)
 359                                                             | (item->_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 360                                                             | (item->_isLive ? PREVIEW_LINK_OTHER:0)) );
 361
 362                 widget->queue_draw();
 363             }
 364         }
 365
 366         for ( std::vector<ColorItem*>::iterator it = item->_listeners.begin(); it != item->_listeners.end(); ++it ) {
 367             guint r = item->def.getR();
 368             guint g = item->def.getG();
 369             guint b = item->def.getB();
 370
 371             if ( (*it)->_linkIsTone ) {
 372                 r = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 373                 g = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 374                 b = ( ((*it)->_linkPercent * (*it)->_linkGray) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 375             } else {
 376                 r = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * r) ) / 100;
 377                 g = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * g) ) / 100;
 378                 b = ( ((*it)->_linkPercent * 255) + ((100 - (*it)->_linkPercent) * b) ) / 100;
 379             }
 380
 381             (*it)->def.setRGB( r, g, b );
 382         }
 383
 384
 385         // Look for objects using this color
 386         {
 387             SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 388             if ( desktop ) {
 389                 SPDocument* document = sp_desktop_document( desktop );
 390                 Inkscape::XML::Node *rroot =  sp_document_repr_root( document );
 391                 if ( rroot ) {
 392
 393                     // Find where this thing came from
 394                     Glib::ustring paletteName;
 395                     bool found = false;
 396                     int index = 0;
 397                     for ( std::vector<JustForNow*>::iterator it2 = possible.begin(); it2 != possible.end() && !found; ++it2 ) {
 398                         JustForNow* curr = *it2;
 399                         index = 0;
 400                         for ( std::vector<ColorItem*>::iterator zz = curr->_colors.begin(); zz != curr->_colors.end(); ++zz ) {
 401                             if ( item == *zz ) {
 402                                 found = true;
 403                                 paletteName = curr->_name;
 404                                 break;
 405                             } else {
 406                                 index++;
 407                             }
 408                         }
 409                     }
 410
 411                     if ( !paletteName.empty() ) {
 412                         gchar* str = g_strdup_printf("%d|", index);
 413                         paletteName.insert( 0, str );
 414                         g_free(str);
 415                         str = 0;
 416
 417                         if ( bruteForce( document, rroot, paletteName, item->def.getR(), item->def.getG(), item->def.getB() ) ) {
 418                             sp_document_done( document , SP_VERB_DIALOG_SWATCHES,
 419                                               _("Change color definition"));
 420                         }
 421                     }
 422                 }
 423             }
 424         }
 425     }
 426 }
 427
 428
 429 Gtk::Widget* ColorItem::getPreview(PreviewStyle style, ViewType view, ::PreviewSize size, guint ratio)
 430 {
 431     Gtk::Widget* widget = 0;
 432     if ( style == PREVIEW_STYLE_BLURB) {
 433         Gtk::Label *lbl = new Gtk::Label(def.descr);
 434         lbl->set_alignment(Gtk::ALIGN_LEFT, Gtk::ALIGN_CENTER);
 435         widget = lbl;
 436     } else {
 437 //         Glib::ustring blank("          ");
 438 //         if ( size == Inkscape::ICON_SIZE_MENU || size == Inkscape::ICON_SIZE_DECORATION ) {
 439 //             blank = " ";
 440 //         }
 441
 442         GtkWidget* eekWidget = eek_preview_new();
 443         EekPreview * preview = EEK_PREVIEW(eekWidget);
 444         Gtk::Widget* newBlot = Glib::wrap(eekWidget);
 445
 446         eek_preview_set_color( preview, (def.getR() << 8) | def.getR(), (def.getG() << 8) | def.getG(), (def.getB() << 8) | def.getB());
 447         if ( def.getType() != ege::PaintDef::RGB ) {
 448             using Inkscape::IO::Resource::get_path;
 449             using Inkscape::IO::Resource::ICONS;
 450             using Inkscape::IO::Resource::SYSTEM;
 451             GError *error = NULL;
 452             gsize bytesRead = 0;
 453             gsize bytesWritten = 0;
 454             gchar *localFilename = g_filename_from_utf8( get_path(SYSTEM, ICONS, "remove-color.png"),
 455                                                  -1,
 456                                                  &bytesRead,
 457                                                  &bytesWritten,
 458                                                  &error);
 459             GdkPixbuf* pixbuf = gdk_pixbuf_new_from_file(localFilename, &error);
 460             if (!pixbuf) {
 461                 g_warning("Null pixbuf for %p [%s]", localFilename, localFilename );
 462             }
 463             g_free(localFilename);
 464
 465             eek_preview_set_pixbuf( preview, pixbuf );
 466         }
 467
 468         eek_preview_set_details( preview, (::PreviewStyle)style, (::ViewType)view, (::PreviewSize)size, ratio );
 469         eek_preview_set_linked( preview, (LinkType)((_linkSrc ? PREVIEW_LINK_IN:0)
 470                                                     | (_listeners.empty() ? 0:PREVIEW_LINK_OUT)
 471                                                     | (_isLive ? PREVIEW_LINK_OTHER:0)) );
 472
 473         def.addCallback( _colorDefChanged, this );
 474
 475         GValue val = {0, {{0}, {0}}};
 476         g_value_init( &val, G_TYPE_BOOLEAN );
 477         g_value_set_boolean( &val, FALSE );
 478         g_object_set_property( G_OBJECT(preview), "focus-on-click", &val );
 479
 480 /*
 481         Gtk::Button *btn = new Gtk::Button(blank);
 482         Gdk::Color color;
 483         color.set_rgb((_r << 8)|_r, (_g << 8)|_g, (_b << 8)|_b);
 484         btn->modify_bg(Gtk::STATE_NORMAL, color);
 485         btn->modify_bg(Gtk::STATE_ACTIVE, color);
 486         btn->modify_bg(Gtk::STATE_PRELIGHT, color);
 487         btn->modify_bg(Gtk::STATE_SELECTED, color);
 488
 489         Gtk::Widget* newBlot = btn;
 490 */
 491
 492         tips.set_tip((*newBlot), def.descr);
 493
 494 /*
 495         newBlot->signal_clicked().connect( sigc::mem_fun(*this, &ColorItem::buttonClicked) );
 496
 497         sigc::signal<void> type_signal_something;
 498 */
 499
 500         g_signal_connect( G_OBJECT(newBlot->gobj()),
 501                           "clicked",
 502                           G_CALLBACK(handleClick),
 503                           this);
 504
 505         g_signal_connect( G_OBJECT(newBlot->gobj()),
 506                           "alt-clicked",
 507                           G_CALLBACK(handleSecondaryClick),
 508                           this);
 509
 510         g_signal_connect( G_OBJECT(newBlot->gobj()),
 511                           "button-press-event",
 512                           G_CALLBACK(handleButtonPress),
 513                           this);
 514
 515         {
 516             std::vector<std::string> listing = def.getMIMETypes();
 517             int entryCount = listing.size();
 518             GtkTargetEntry* entries = new GtkTargetEntry[entryCount];
 519             GtkTargetEntry* curr = entries;
 520             for ( std::vector<std::string>::iterator it = listing.begin(); it != listing.end(); ++it ) {
 521                 curr->target = g_strdup(it->c_str());
 522                 curr->flags = 0;
 523                 if ( mimeToInt.find(*it) == mimeToInt.end() ){
 524                     // these next lines are order-dependent:
 525                     mimeToInt[*it] = mimeStrings.size();
 526                     mimeStrings.push_back(*it);
 527                 }
 528                 curr->info = mimeToInt[curr->target];
 529                 curr++;
 530             }
 531             gtk_drag_source_set( GTK_WIDGET(newBlot->gobj()),
 532                                  GDK_BUTTON1_MASK,
 533                                  entries, entryCount,
 534                                  GdkDragAction(GDK_ACTION_MOVE | GDK_ACTION_COPY) );
 535             for ( int i = 0; i < entryCount; i++ ) {
 536                 g_free(entries[i].target);
 537             }
 538             delete[] entries;
 539         }
 540
 541         g_signal_connect( G_OBJECT(newBlot->gobj()),
 542                           "drag-data-get",
 543                           G_CALLBACK(ColorItem::_dragGetColorData),
 544                           this);
 545
 546         g_signal_connect( G_OBJECT(newBlot->gobj()),
 547                           "drag-begin",
 548                           G_CALLBACK(dragBegin),
 549                           this );
 550
 551         g_signal_connect( G_OBJECT(newBlot->gobj()),
 552                           "enter-notify-event",
 553                           G_CALLBACK(handleEnterNotify),
 554                           this);
 555
 556         g_signal_connect( G_OBJECT(newBlot->gobj()),
 557                           "leave-notify-event",
 558                           G_CALLBACK(handleLeaveNotify),
 559                           this);
 560
 561 //         g_signal_connect( G_OBJECT(newBlot->gobj()),
 562 //                           "drag-drop",
 563 //                           G_CALLBACK(dragDropColorData),
 564 //                           this);
 565
 566         if ( def.isEditable() )
 567         {
 568 //             gtk_drag_dest_set( GTK_WIDGET(newBlot->gobj()),
 569 //                                GTK_DEST_DEFAULT_ALL,
 570 //                                destColorTargets,
 571 //                                G_N_ELEMENTS(destColorTargets),
 572 //                                GdkDragAction(GDK_ACTION_COPY | GDK_ACTION_MOVE) );
 573
 574
 575 //             g_signal_connect( G_OBJECT(newBlot->gobj()),
 576 //                               "drag-data-received",
 577 //                               G_CALLBACK(_dropDataIn),
 578 //                               this );
 579         }
 580
 581         g_signal_connect( G_OBJECT(newBlot->gobj()),
 582                           "destroy",
 583                           G_CALLBACK(dieDieDie),
 584                           this);
 585
 586
 587         widget = newBlot;
 588     }
 589
 590     _previews.push_back( widget );
 591
 592     return widget;
 593 }
 594
 595 void ColorItem::buttonClicked(bool secondary)
 596 {
 597     SPDesktop *desktop = SP_ACTIVE_DESKTOP;
 598     if (desktop) {
 599         char const * attrName = secondary ? "stroke" : "fill";
 600
 601         SPCSSAttr *css = sp_repr_css_attr_new();
 602         Glib::ustring descr;
 603         switch (def.getType()) {
 604             case ege::PaintDef::CLEAR: {
 605                 // TODO actually make this clear
 606                 sp_repr_css_set_property( css, attrName, "none" );
 607                 descr = secondary? _("Remove stroke color") : _("Remove fill color");
 608                 break;
 609             }
 610             case ege::PaintDef::NONE: {
 611                 sp_repr_css_set_property( css, attrName, "none" );
 612                 descr = secondary? _("Set stroke color to none") : _("Set fill color to none");
 613                 break;
 614             }
 615             case ege::PaintDef::RGB: {
 616                 gchar c[64];
 617                 guint32 rgba = (def.getR() << 24) | (def.getG() << 16) | (def.getB() << 8) | 0xff;
 618                 sp_svg_write_color(c, sizeof(c), rgba);
 619
 620                 sp_repr_css_set_property( css, attrName, c );
 621                 descr = secondary? _("Set stroke color from swatch") : _("Set fill color from swatch");
 622                 break;
 623             }
 624         }
 625         sp_desktop_set_style(desktop, css);
 626         sp_repr_css_attr_unref(css);
 627
 628         sp_document_done( sp_desktop_document(desktop), SP_VERB_DIALOG_SWATCHES, descr.c_str() );
 629     }
 630 }
 631
 632 static char* trim( char* str ) {
 633     char* ret = str;
 634     while ( *str && (*str == ' ' || *str == '\t') ) {
 635         str++;
 636     }
 637     ret = str;
 638     while ( *str ) {
 639         str++;
 640     }
 641     str--;
 642     while ( str > ret && (( *str == ' ' || *str == '\t' ) || *str == '\r' || *str == '\n') ) {
 643         *str-- = 0;
 644     }
 645     return ret;
 646 }
 647
 648 void skipWhitespace( char*& str ) {
 649     while ( *str == ' ' || *str == '\t' ) {
 650         str++;
 651     }
 652 }
 653
 654 bool parseNum( char*& str, int& val ) {
 655     val = 0;
 656     while ( '0' <= *str && *str <= '9' ) {
 657         val = val * 10 + (*str - '0');
 658         str++;
 659     }
 660     bool retval = !(*str == 0 || *str == ' ' || *str == '\t' || *str == '\r' || *str == '\n');
 661     return retval;
 662 }
 663
 664
 665 static bool getBlock( std::string& dst, guchar ch, std::string const str )
 666 {
 667     bool good = false;
 668     std::string::size_type pos = str.find(ch);
 669     if ( pos != std::string::npos )
 670     {
 671         std::string::size_type pos2 = str.find( '(', pos );
 672         if ( pos2 != std::string::npos ) {
 673             std::string::size_type endPos = str.find( ')', pos2 );
 674             if ( endPos != std::string::npos ) {
 675                 dst = str.substr( pos2 + 1, (endPos - pos2 - 1) );
 676                 good = true;
 677             }
 678         }
 679     }
 680     return good;
 681 }
 682
 683 static bool popVal( guint64& numVal, std::string& str )
 684 {
 685     bool good = false;
 686     std::string::size_type endPos = str.find(',');
 687     if ( endPos == std::string::npos ) {
 688         endPos = str.length();
 689     }
 690
 691     if ( endPos != std::string::npos && endPos > 0 ) {
 692         std::string xxx = str.substr( 0, endPos );
 693         const gchar* ptr = xxx.c_str();
 694         gchar* endPtr = 0;
 695         numVal = g_ascii_strtoull( ptr, &endPtr, 10 );
 696         if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 697             // overflow
 698         } else if ( (numVal == 0) && (endPtr == ptr) ) {
 699             // failed conversion
 700         } else {
 701             good = true;
 702             str.erase( 0, endPos + 1 );
 703         }
 704     }
 705
 706     return good;
 707 }
 708
 709 void ColorItem::_wireMagicColors( void* p )
 710 {
 711     JustForNow* onceMore = reinterpret_cast<JustForNow*>(p);
 712     if ( onceMore )
 713     {
 714         for ( std::vector<ColorItem*>::iterator it = onceMore->_colors.begin(); it != onceMore->_colors.end(); ++it )
 715         {
 716             std::string::size_type pos = (*it)->def.descr.find("*{");
 717             if ( pos != std::string::npos )
 718             {
 719                 std::string subby = (*it)->def.descr.substr( pos + 2 );
 720                 std::string::size_type endPos = subby.find("}*");
 721                 if ( endPos != std::string::npos )
 722                 {
 723                     subby.erase( endPos );
 724                     //g_message("FOUND MAGIC at '%s'", (*it)->def.descr.c_str());
 725                     //g_message("               '%s'", subby.c_str());
 726
 727                     if ( subby.find('E') != std::string::npos )
 728                     {
 729                         (*it)->def.setEditable( true );
 730                     }
 731
 732                     if ( subby.find('L') != std::string::npos )
 733                     {
 734                         (*it)->_isLive = true;
 735                     }
 736
 737                     std::string part;
 738                     // Tint. index + 1 more val.
 739                     if ( getBlock( part, 'T', subby ) ) {
 740                         guint64 colorIndex = 0;
 741                         if ( popVal( colorIndex, part ) ) {
 742                             guint64 percent = 0;
 743                             if ( popVal( percent, part ) ) {
 744                                 (*it)->_linkTint( *(onceMore->_colors[colorIndex]), percent );
 745                             }
 746                         }
 747                     }
 748
 749                     // Shade/tone. index + 1 or 2 more val.
 750                     if ( getBlock( part, 'S', subby ) ) {
 751                         guint64 colorIndex = 0;
 752                         if ( popVal( colorIndex, part ) ) {
 753                             guint64 percent = 0;
 754                             if ( popVal( percent, part ) ) {
 755                                 guint64 grayLevel = 0;
 756                                 if ( !popVal( grayLevel, part ) ) {
 757                                     grayLevel = 0;
 758                                 }
 759                                 (*it)->_linkTone( *(onceMore->_colors[colorIndex]), percent, grayLevel );
 760                             }
 761                         }
 762                     }
 763
 764                 }
 765             }
 766         }
 767     }
 768 }
 769
 770
 771 void ColorItem::_linkTint( ColorItem& other, int percent )
 772 {
 773     if ( !_linkSrc )
 774     {
 775         other._listeners.push_back(this);
 776         _linkIsTone = false;
 777         _linkPercent = percent;
 778         if ( _linkPercent > 100 )
 779             _linkPercent = 100;
 780         if ( _linkPercent < 0 )
 781             _linkPercent = 0;
 782         _linkGray = 0;
 783         _linkSrc = &other;
 784
 785         ColorItem::_colorDefChanged(&other);
 786     }
 787 }
 788
 789 void ColorItem::_linkTone( ColorItem& other, int percent, int grayLevel )
 790 {
 791     if ( !_linkSrc )
 792     {
 793         other._listeners.push_back(this);
 794         _linkIsTone = true;
 795         _linkPercent = percent;
 796         if ( _linkPercent > 100 )
 797             _linkPercent = 100;
 798         if ( _linkPercent < 0 )
 799             _linkPercent = 0;
 800         _linkGray = grayLevel;
 801         _linkSrc = &other;
 802
 803         ColorItem::_colorDefChanged(&other);
 804     }
 805 }
 806
 807
 808 void _loadPaletteFile( gchar const *filename )
 809 {
 810     char block[1024];
 811     FILE *f = Inkscape::IO::fopen_utf8name( filename, "r" );
 812     if ( f ) {
 813         char* result = fgets( block, sizeof(block), f );
 814         if ( result ) {
 815             if ( strncmp( "GIMP Palette", block, 12 ) == 0 ) {
 816                 bool inHeader = true;
 817                 bool hasErr = false;
 818
 819                 JustForNow *onceMore = new JustForNow();
 820
 821                 do {
 822                     result = fgets( block, sizeof(block), f );
 823                     block[sizeof(block) - 1] = 0;
 824                     if ( result ) {
 825                         if ( block[0] == '#' ) {
 826                             // ignore comment
 827                         } else {
 828                             char *ptr = block;
 829                             // very simple check for header versus entry
 830                             while ( *ptr == ' ' || *ptr == '\t' ) {
 831                                 ptr++;
 832                             }
 833                             if ( (*ptr == 0) || (*ptr == '\r') || (*ptr == '\n') ) {
 834                                 // blank line. skip it.
 835                             } else if ( '0' <= *ptr && *ptr <= '9' ) {
 836                                 // should be an entry link
 837                                 inHeader = false;
 838                                 ptr = block;
 839                                 Glib::ustring name("");
 840                                 int r = 0;
 841                                 int g = 0;
 842                                 int b = 0;
 843                                 skipWhitespace(ptr);
 844                                 if ( *ptr ) {
 845                                     hasErr = parseNum(ptr, r);
 846                                     if ( !hasErr ) {
 847                                         skipWhitespace(ptr);
 848                                         hasErr = parseNum(ptr, g);
 849                                     }
 850                                     if ( !hasErr ) {
 851                                         skipWhitespace(ptr);
 852                                         hasErr = parseNum(ptr, b);
 853                                     }
 854                                     if ( !hasErr && *ptr ) {
 855                                         char* n = trim(ptr);
 856                                         if (n != NULL) {
 857                                             name = n;
 858                                         }
 859                                     }
 860                                     if ( !hasErr ) {
 861                                         // Add the entry now
 862                                         Glib::ustring nameStr(name);
 863                                         ColorItem* item = new ColorItem( r, g, b, nameStr );
 864                                         onceMore->_colors.push_back(item);
 865                                     }
 866                                 } else {
 867                                     hasErr = true;
 868                                 }
 869                             } else {
 870                                 if ( !inHeader ) {
 871                                     // Hmmm... probably bad. Not quite the format we want?
 872                                     hasErr = true;
 873                                 } else {
 874                                     char* sep = strchr(result, ':');
 875                                     if ( sep ) {
 876                                         *sep = 0;
 877                                         char* val = trim(sep + 1);
 878                                         char* name = trim(result);
 879                                         if ( *name ) {
 880                                             if ( strcmp( "Name", name ) == 0 )
 881                                             {
 882                                                 onceMore->_name = val;
 883                                             }
 884                                             else if ( strcmp( "Columns", name ) == 0 )
 885                                             {
 886                                                 gchar* endPtr = 0;
 887                                                 guint64 numVal = g_ascii_strtoull( val, &endPtr, 10 );
 888                                                 if ( (numVal == G_MAXUINT64) && (ERANGE == errno) ) {
 889                                                     // overflow
 890                                                 } else if ( (numVal == 0) && (endPtr == val) ) {
 891                                                     // failed conversion
 892                                                 } else {
 893                                                     onceMore->_prefWidth = numVal;
 894                                                 }
 895                                             }
 896                                         } else {
 897                                             // error
 898                                             hasErr = true;
 899                                         }
 900                                     } else {
 901                                         // error
 902                                         hasErr = true;
 903                                     }
 904                                 }
 905                             }
 906                         }
 907                     }
 908                 } while ( result && !hasErr );
 909                 if ( !hasErr ) {
 910                     possible.push_back(onceMore);
 911 #if ENABLE_MAGIC_COLORS
 912                     ColorItem::_wireMagicColors( onceMore );
 913 #endif // ENABLE_MAGIC_COLORS
 914                 } else {
 915                     delete onceMore;
 916                 }
 917             }
 918         }
 919
 920         fclose(f);
 921     }
 922 }
 923
 924 static void loadEmUp()
 925 {
 926     static bool beenHere = false;
 927     if ( !beenHere ) {
 928         beenHere = true;
 929
 930         std::list<gchar *> sources;
 931         sources.push_back( profile_path("palettes") );
 932         sources.push_back( g_strdup(INKSCAPE_PALETTESDIR) );
 933         sources.push_back( g_strdup(CREATE_PALETTESDIR) );
 934
 935         // Use this loop to iterate through a list of possible document locations.
 936         while (!sources.empty()) {
 937             gchar *dirname = sources.front();
 938
 939             if ( Inkscape::IO::file_test( dirname, G_FILE_TEST_EXISTS )
 940                 && Inkscape::IO::file_test( dirname, G_FILE_TEST_IS_DIR )) {
 941                 GError *err = 0;
 942                 GDir *directory = g_dir_open(dirname, 0, &err);
 943                 if (!directory) {
 944                     gchar *safeDir = Inkscape::IO::sanitizeString(dirname);
 945                     g_warning(_("Palettes directory (%s) is unavailable."), safeDir);
 946                     g_free(safeDir);
 947                 } else {
 948                     gchar *filename = 0;
 949                     while ((filename = (gchar *)g_dir_read_name(directory)) != NULL) {
 950                         gchar* lower = g_ascii_strdown( filename, -1 );
 951 //                        if ( g_str_has_suffix(lower, ".gpl") ) {
 952                             gchar* full = g_build_filename(dirname, filename, NULL);
 953                             if ( !Inkscape::IO::file_test( full, G_FILE_TEST_IS_DIR ) ) {
 954                                 _loadPaletteFile(full);
 955                             }
 956                             g_free(full);
 957 //                      }
 958                         g_free(lower);
 959                     }
 960                     g_dir_close(directory);
 961                 }
 962             }
 963
 964             // toss the dirname
 965             g_free(dirname);
 966             sources.pop_front();
 967         }
 968     }
 969 }
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979 SwatchesPanel& SwatchesPanel::getInstance()
 980 {
 981     return *new SwatchesPanel();
 982 }
 983
 984
 985 /**
 986  * Constructor
 987  */
 988 SwatchesPanel::SwatchesPanel(gchar const* prefsPath) :
 989     Inkscape::UI::Widget::Panel("", prefsPath, SP_VERB_DIALOG_SWATCHES, "", true),
 990     _holder(0),
 991     _clear(0),
 992     _remove(0),
 993     _currentIndex(0),
 994     _currentDesktop(0),
 995     _currentDocument(0),
 996     _ptr(0)
 997 {
 998     Gtk::RadioMenuItem* hotItem = 0;
 999     _holder = new PreviewHolder();
1000     _clear = new ColorItem( ege::PaintDef::CLEAR );
1001     _remove = new ColorItem( ege::PaintDef::NONE );
1002     {
1003         JustForNow *docPalette = new JustForNow();
1004
1005         docPalette->_name = "Auto";
1006         possible.push_back(docPalette);
1007
1008         _ptr = docPalette;
1009     }
1010     loadEmUp();
1011     if ( !possible.empty() ) {
1012         JustForNow* first = 0;
1013         int index = 0;
1014         Glib::ustring targetName;
1015         if ( !_prefs_path.empty() ) {
1016             Inkscape::Preferences *prefs = Inkscape::Preferences::get();
1017             targetName = prefs->getString(_prefs_path + "/palette");
1018             if (!targetName.empty()) {
1019                 for ( std::vector<JustForNow*>::iterator iter = possible.begin(); iter != possible.end(); ++iter ) {
1020                     if ( (*iter)->_name == targetName ) {
1021                         first = *iter;
1022                         break;
1023                     }
1024                     index++;
1025                 }
1026             }
1027         }
1028
1029         if ( !first ) {
1030             first = possible.front();
1031             _currentIndex = 0;
1032         } else {
1033             _currentIndex = index;
1034         }
1035
1036         _rebuild();
1037
1038         Gtk::RadioMenuItem::Group groupOne;
1039
1040         int i = 0;
1041         for ( std::vector<JustForNow*>::iterator it = possible.begin(); it != possible.end(); it++ ) {
1042             JustForNow* curr = *it;
1043             Gtk::RadioMenuItem* single = manage(new Gtk::RadioMenuItem(groupOne, curr->_name));
1044             if ( curr == first ) {
1045                 hotItem = single;
1046             }
1047             _regItem( single, 3, i );
1048             i++;
1049         }
1050     }
1051
1052
1053     _getContents()->pack_start(*_holder, Gtk::PACK_EXPAND_WIDGET);
1054     _setTargetFillable(_holder);
1055
1056     show_all_children();
1057
1058     restorePanelPrefs();
1059     if ( hotItem ) {
1060         hotItem->set_active();
1061     }
1062 }
1063
1064 SwatchesPanel::~SwatchesPanel()
1065 {
1066     _documentConnection.disconnect();
1067     _resourceConnection.disconnect();
1068
1069     if ( _clear ) {
1070         delete _clear;
1071     }
1072     if ( _remove ) {
1073         delete _remove;
1074     }
1075     if ( _holder ) {
1076         delete _holder;
1077     }
1078 }
1079
1080 void SwatchesPanel::setOrientation( Gtk::AnchorType how )
1081 {
1082     // Must call the parent class or bad things might happen
1083     Inkscape::UI::Widget::Panel::setOrientation( how );
1084
1085     if ( _holder )
1086     {
1087         _holder->setOrientation( Gtk::ANCHOR_SOUTH );
1088     }
1089 }
1090
1091 void SwatchesPanel::setDesktop( SPDesktop* desktop )
1092 {
1093     if ( desktop != _currentDesktop ) {
1094         if ( _currentDesktop ) {
1095             _documentConnection.disconnect();
1096         }
1097
1098         _currentDesktop = desktop;
1099
1100         if ( desktop ) {
1101             sigc::bound_mem_functor1<void, Inkscape::UI::Dialogs::SwatchesPanel, SPDocument*> first = sigc::mem_fun(*this, &SwatchesPanel::_setDocument);
1102
1103             sigc::slot<void, SPDocument*> base2 = first;
1104
1105             sigc::slot<void,SPDesktop*, SPDocument*> slot2 = sigc::hide<0>( base2 );
1106             _documentConnection = desktop->connectDocumentReplaced( slot2 );
1107
1108             _setDocument( desktop->doc() );
1109         } else {
1110             _setDocument(0);
1111         }
1112     }
1113 }
1114
1115 void SwatchesPanel::_setDocument( SPDocument *document )
1116 {
1117     if ( document != _currentDocument ) {
1118         if ( _currentDocument ) {
1119             _resourceConnection.disconnect();
1120         }
1121         _currentDocument = document;
1122         if ( _currentDocument ) {
1123             _resourceConnection = sp_document_resources_changed_connect(document,
1124                                                                         "gradient",
1125                                                                         sigc::mem_fun(*this, &SwatchesPanel::_handleGradientsChange));
1126         }
1127
1128         _handleGradientsChange();
1129     }
1130 }
1131
1132 void SwatchesPanel::_handleGradientsChange()
1133 {
1134     std::vector<SPGradient*> newList;
1135
1136     const GSList *gradients = sp_document_get_resource_list(_currentDocument, "gradient");
1137     for (const GSList *item = gradients; item; item = item->next) {
1138         SPGradient* grad = SP_GRADIENT(item->data);
1139         if ( grad->has_stops ) {
1140             newList.push_back(SP_GRADIENT(item->data));
1141         }
1142     }
1143
1144     if ( _ptr ) {
1145         JustForNow *docPalette = reinterpret_cast<JustForNow *>(_ptr);
1146         // TODO delete pointed to objects
1147         docPalette->_colors.clear();
1148         if ( !newList.empty() ) {
1149             for ( std::vector<SPGradient*>::iterator it = newList.begin(); it != newList.end(); ++it )
1150             {
1151                 if ( (*it)->vector.stops.size() == 2 ) {
1152                     SPGradientStop first = (*it)->vector.stops[0];
1153                     SPGradientStop second = (*it)->vector.stops[1];
1154                     if ((first.offset <0.0001) && (static_cast<int>(second.offset * 100.0f) == 100)) {
1155                         SPColor color = first.color;
1156                         guint32 together = color.toRGBA32(0);
1157
1158                         // Pick only single-color gradients for now
1159                         SPColor color2 = second.color;
1160                         guint32 together2 = color2.toRGBA32(0);
1161                         if ( together == together2 ) {
1162                             Glib::ustring name((*it)->id);
1163                             unsigned int r = SP_RGBA32_R_U(together);
1164                             unsigned int g = SP_RGBA32_G_U(together);
1165                             unsigned int b = SP_RGBA32_B_U(together);
1166                             ColorItem* item = new ColorItem( r, g, b, name );
1167                             docPalette->_colors.push_back(item);
1168                         }
1169                     }
1170                 }
1171             }
1172         }
1173         JustForNow* curr = possible[_currentIndex];
1174         if (curr == docPalette) {
1175             _rebuild();
1176         }
1177     }
1178 }
1179
1180 void SwatchesPanel::_handleAction( int setId, int itemId )
1181 {
1182     switch( setId ) {
1183         case 3:
1184         {
1185             if ( itemId >= 0 && itemId < static_cast<int>(possible.size()) ) {
1186                 _currentIndex = itemId;
1187
1188                 if ( !_prefs_path.empty() ) {
1189                     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
1190                     prefs->setString(_prefs_path + "/palette", possible[_currentIndex]->_name);
1191                 }
1192
1193                 _rebuild();
1194             }
1195         }
1196         break;
1197     }
1198 }
1199
1200 void SwatchesPanel::_rebuild()
1201 {
1202     JustForNow* curr = possible[_currentIndex];
1203     _holder->clear();
1204
1205     if ( curr->_prefWidth > 0 ) {
1206         _holder->setColumnPref( curr->_prefWidth );
1207     }
1208     _holder->freezeUpdates();
1209     // TODO restore once 'clear' works _holder->addPreview(_clear);
1210     _holder->addPreview(_remove);
1211     for ( std::vector<ColorItem*>::iterator it = curr->_colors.begin(); it != curr->_colors.end(); it++ ) {
1212         _holder->addPreview(*it);
1213     }
1214     _holder->thawUpdates();
1215 }
1216
1217
1218
1219
1220 } //namespace Dialogs
1221 } //namespace UI
1222 } //namespace Inkscape
1223
1224
1225 /*
1226   Local Variables:
1227   mode:c++
1228   c-file-style:"stroustrup"
1229   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1230   indent-tabs-mode:nil
1231   fill-column:99
1232   End:
1233 */
1234 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :