src/widgets/icon.cpp

   1 /** \file
   2  * SPIcon: Generic icon widget
   3  */
   4 /*
   5  * Author:
   6  *   Lauris Kaplinski <lauris@kaplinski.com>
   7  *   Jon A. Cruz <jon@joncruz.org>
   8  *   Abhishek Sharma
   9  *
  10  * Copyright (C) 2002 Lauris Kaplinski
  11  *
  12  * Released under GNU GPL, read the file 'COPYING' for more information
  13  */
  14
  15 #ifdef HAVE_CONFIG_H
  16 # include "config.h"
  17 #endif
  18
  19 #include <cstring>
  20 #include <glib/gmem.h>
  21 #include <glib/gstdio.h>
  22 #include <gtk/gtk.h>
  23 #include <gtkmm.h>
  24 #include <gdkmm/pixbuf.h>
  25
  26 #include "path-prefix.h"
  27 #include "preferences.h"
  28 #include "inkscape.h"
  29 #include "document.h"
  30 #include "sp-item.h"
  31 #include "display/nr-arena.h"
  32 #include "display/nr-arena-item.h"
  33 #include "io/sys.h"
  34
  35 #include "icon.h"
  36
  37
  38 struct IconImpl {
  39     static void classInit(SPIconClass *klass);
  40     static void init(SPIcon *icon);
  41
  42     static GtkWidget *newFull( Inkscape::IconSize lsize, gchar const *name );
  43
  44     static void dispose(GObject *object);
  45
  46     static void reset(SPIcon *icon);
  47     static void clear(SPIcon *icon);
  48
  49     static void sizeRequest(GtkWidget *widget, GtkRequisition *requisition);
  50     static void sizeAllocate(GtkWidget *widget, GtkAllocation *allocation);
  51     static int expose(GtkWidget *widget, GdkEventExpose *event);
  52
  53     static void paint(SPIcon *icon, GdkRectangle const *area);
  54
  55     static void screenChanged( GtkWidget *widget, GdkScreen *previous_screen );
  56     static void styleSet( GtkWidget *widget, GtkStyle *previous_style );
  57     static void themeChanged( SPIcon *icon );
  58
  59     static int getPhysSize(int size);
  60     static void fetchPixbuf( SPIcon *icon );
  61
  62     static gboolean prerenderTask(gpointer data);
  63     static void addPreRender( GtkIconSize lsize, gchar const *name );
  64     static GdkPixbuf* renderup( gchar const* name, Inkscape::IconSize lsize, unsigned psize );
  65
  66
  67     static GdkPixbuf *loadPixmap(gchar const *name, unsigned lsize, unsigned psize);
  68     static GdkPixbuf *loadSvg(std::list<Glib::ustring> const &names, GtkIconSize lsize, unsigned psize);
  69
  70     static void overlayPixels( guchar *px, int width, int height, int stride,
  71                                unsigned r, unsigned g, unsigned b );
  72
  73     static void injectCustomSize();
  74
  75     static void imageMapCB(GtkWidget* widget, gpointer user_data);
  76     static void imageMapNamedCB(GtkWidget* widget, gpointer user_data);
  77     static bool prerenderIcon(gchar const *name, GtkIconSize lsize, unsigned psize);
  78
  79     static void setupLegacyNaming();
  80
  81 private:
  82     static GtkWidgetClass *parent_class;
  83     static std::map<Glib::ustring, Glib::ustring> legacyNames;
  84 };
  85
  86 GtkWidgetClass *IconImpl::parent_class = 0;
  87 std::map<Glib::ustring, Glib::ustring> IconImpl::legacyNames;
  88
  89
  90 static bool sizeDirty = true;
  91
  92 static bool sizeMapDone = false;
  93 static GtkIconSize iconSizeLookup[] = {
  94     GTK_ICON_SIZE_INVALID,
  95     GTK_ICON_SIZE_MENU,
  96     GTK_ICON_SIZE_SMALL_TOOLBAR,
  97     GTK_ICON_SIZE_LARGE_TOOLBAR,
  98     GTK_ICON_SIZE_BUTTON,
  99     GTK_ICON_SIZE_DND,
 100     GTK_ICON_SIZE_DIALOG,
 101     GTK_ICON_SIZE_MENU, // for Inkscape::ICON_SIZE_DECORATION
 102 };
 103
 104 class IconCacheItem
 105 {
 106 public:
 107     IconCacheItem( GtkIconSize lsize, GdkPixbuf* pb ) :
 108         _lsize( lsize ),
 109         _pb( pb )
 110     {}
 111     GtkIconSize _lsize;
 112     GdkPixbuf* _pb;
 113 };
 114
 115 static std::map<Glib::ustring, std::vector<IconCacheItem> > iconSetCache;
 116 static std::set<Glib::ustring> internalNames;
 117
 118 GType SPIcon::getType()
 119 {
 120     static GType type = 0;
 121     if (!type) {
 122         GTypeInfo info = {
 123             sizeof(SPIconClass),
 124             NULL,
 125             NULL,
 126             reinterpret_cast<GClassInitFunc>(IconImpl::classInit),
 127             NULL,
 128             NULL,
 129             sizeof(SPIcon),
 130             0,
 131             reinterpret_cast<GInstanceInitFunc>(IconImpl::init),
 132             NULL
 133         };
 134         type = g_type_register_static(GTK_TYPE_WIDGET, "SPIcon", &info, (GTypeFlags)0);
 135     }
 136     return type;
 137 }
 138
 139 void IconImpl::classInit(SPIconClass *klass)
 140 {
 141     GObjectClass *object_class;
 142     GtkWidgetClass *widget_class;
 143
 144     object_class = (GObjectClass *) klass;
 145     widget_class = (GtkWidgetClass *) klass;
 146
 147     parent_class = (GtkWidgetClass*)g_type_class_peek_parent(klass);
 148
 149     object_class->dispose = IconImpl::dispose;
 150
 151     widget_class->size_request = IconImpl::sizeRequest;
 152     widget_class->size_allocate = IconImpl::sizeAllocate;
 153     widget_class->expose_event = IconImpl::expose;
 154     widget_class->screen_changed = IconImpl::screenChanged;
 155     widget_class->style_set = IconImpl::styleSet;
 156 }
 157
 158 void IconImpl::init(SPIcon *icon)
 159 {
 160     GTK_WIDGET_FLAGS(icon) |= GTK_NO_WINDOW;
 161     icon->lsize = Inkscape::ICON_SIZE_BUTTON;
 162     icon->psize = 0;
 163     icon->name = 0;
 164     icon->pb = 0;
 165 }
 166
 167 void IconImpl::dispose(GObject *object)
 168 {
 169     SPIcon *icon = SP_ICON(object);
 170     clear(icon);
 171     if ( icon->name ) {
 172         g_free( icon->name );
 173         icon->name = 0;
 174     }
 175
 176     ((GObjectClass *) (parent_class))->dispose(object);
 177 }
 178
 179 void IconImpl::reset( SPIcon *icon )
 180 {
 181     icon->psize = 0;
 182     clear(icon);
 183 }
 184
 185 void IconImpl::clear( SPIcon *icon )
 186 {
 187     if (icon->pb) {
 188         g_object_unref(G_OBJECT(icon->pb));
 189         icon->pb = NULL;
 190     }
 191 }
 192
 193 void IconImpl::sizeRequest(GtkWidget *widget, GtkRequisition *requisition)
 194 {
 195     SPIcon const *icon = SP_ICON(widget);
 196
 197     int const size = ( icon->psize
 198                        ? icon->psize
 199                        : getPhysSize(icon->lsize) );
 200     requisition->width = size;
 201     requisition->height = size;
 202 }
 203
 204 void IconImpl::sizeAllocate(GtkWidget *widget, GtkAllocation *allocation)
 205 {
 206     widget->allocation = *allocation;
 207
 208     if (GTK_WIDGET_DRAWABLE(widget)) {
 209         gtk_widget_queue_draw(widget);
 210     }
 211 }
 212
 213 int IconImpl::expose(GtkWidget *widget, GdkEventExpose *event)
 214 {
 215     if ( GTK_WIDGET_DRAWABLE(widget) ) {
 216         SPIcon *icon = SP_ICON(widget);
 217         if ( !icon->pb ) {
 218             fetchPixbuf( icon );
 219         }
 220
 221         paint(icon, &event->area);
 222     }
 223
 224     return TRUE;
 225 }
 226
 227 // PUBLIC CALL:
 228 void sp_icon_fetch_pixbuf( SPIcon *icon )
 229 {
 230     return IconImpl::fetchPixbuf(icon);
 231 }
 232
 233 void IconImpl::fetchPixbuf( SPIcon *icon )
 234 {
 235     if ( icon ) {
 236         if ( !icon->pb ) {
 237             icon->psize = getPhysSize(icon->lsize);
 238             icon->pb = renderup(icon->name, icon->lsize, icon->psize);
 239         }
 240     }
 241 }
 242
 243 GdkPixbuf* IconImpl::renderup( gchar const* name, Inkscape::IconSize lsize, unsigned psize ) {
 244     GtkIconTheme *theme = gtk_icon_theme_get_default();
 245
 246     GdkPixbuf *pb = 0;
 247     if (gtk_icon_theme_has_icon(theme, name)) {
 248         pb = gtk_icon_theme_load_icon(theme, name, psize, (GtkIconLookupFlags) 0, NULL);
 249     }
 250     if (!pb) {
 251         std::list<Glib::ustring> names;
 252         names.push_back(name);
 253         if ( legacyNames.find(name) != legacyNames.end() ) {
 254             if ( Inkscape::Preferences::get()->getBool("/debug/icons/dumpSvg") ) {
 255                 g_message("Checking fallback [%s]->[%s]", name, legacyNames[name].c_str());
 256             }
 257             names.push_back(legacyNames[name]);
 258         }
 259
 260         pb = loadSvg( names, Inkscape::getRegisteredIconSize(lsize), psize );
 261
 262         // if this was loaded from SVG, add it as a builtin icon
 263         if (pb) {
 264             gtk_icon_theme_add_builtin_icon(name, psize, pb);
 265         }
 266     }
 267     if (!pb) {
 268         pb = loadPixmap( name, lsize, psize );
 269     }
 270     if ( !pb ) {
 271         // TODO: We should do something more useful if we can't load the image.
 272         g_warning ("failed to load icon '%s'", name);
 273     }
 274     return pb;
 275 }
 276
 277 void IconImpl::screenChanged( GtkWidget *widget, GdkScreen *previous_screen )
 278 {
 279     if ( GTK_WIDGET_CLASS( parent_class )->screen_changed ) {
 280         GTK_WIDGET_CLASS( parent_class )->screen_changed( widget, previous_screen );
 281     }
 282     SPIcon *icon = SP_ICON(widget);
 283     themeChanged(icon);
 284 }
 285
 286 void IconImpl::styleSet( GtkWidget *widget, GtkStyle *previous_style )
 287 {
 288     if ( GTK_WIDGET_CLASS( parent_class )->style_set ) {
 289         GTK_WIDGET_CLASS( parent_class )->style_set( widget, previous_style );
 290     }
 291     SPIcon *icon = SP_ICON(widget);
 292     themeChanged(icon);
 293 }
 294
 295 void IconImpl::themeChanged( SPIcon *icon )
 296 {
 297     bool const dump = Inkscape::Preferences::get()->getBool("/debug/icons/dumpSvg");
 298     if ( dump ) {
 299         g_message("Got a change bump for this icon");
 300     }
 301     sizeDirty = true;
 302     reset(icon);
 303     gtk_widget_queue_draw( GTK_WIDGET(icon) );
 304 }
 305
 306
 307 static Glib::ustring icon_cache_key(Glib::ustring const &name, unsigned psize);
 308 static GdkPixbuf *get_cached_pixbuf(Glib::ustring const &key);
 309
 310 void IconImpl::setupLegacyNaming() {
 311     legacyNames["document-import"] ="file_import";
 312     legacyNames["document-export"] ="file_export";
 313     legacyNames["document-import-ocal"] ="ocal_import";
 314     legacyNames["document-export-ocal"] ="ocal_export";
 315     legacyNames["document-metadata"] ="document_metadata";
 316     legacyNames["dialog-input-devices"] ="input_devices";
 317     legacyNames["edit-duplicate"] ="edit_duplicate";
 318     legacyNames["edit-clone"] ="edit_clone";
 319     legacyNames["edit-clone-unlink"] ="edit_unlink_clone";
 320     legacyNames["edit-select-original"] ="edit_select_original";
 321     legacyNames["edit-undo-history"] ="edit_undo_history";
 322     legacyNames["edit-paste-in-place"] ="selection_paste_in_place";
 323     legacyNames["edit-paste-style"] ="selection_paste_style";
 324     legacyNames["selection-make-bitmap-copy"] ="selection_bitmap";
 325     legacyNames["edit-select-all"] ="selection_select_all";
 326     legacyNames["edit-select-all-layers"] ="selection_select_all_in_all_layers";
 327     legacyNames["edit-select-invert"] ="selection_invert";
 328     legacyNames["edit-select-none"] ="selection_deselect";
 329     legacyNames["dialog-xml-editor"] ="xml_editor";
 330     legacyNames["zoom-original"] ="zoom_1_to_1";
 331     legacyNames["zoom-half-size"] ="zoom_1_to_2";
 332     legacyNames["zoom-double-size"] ="zoom_2_to_1";
 333     legacyNames["zoom-fit-selection"] ="zoom_select";
 334     legacyNames["zoom-fit-drawing"] ="zoom_draw";
 335     legacyNames["zoom-fit-page"] ="zoom_page";
 336     legacyNames["zoom-fit-width"] ="zoom_pagewidth";
 337     legacyNames["zoom-previous"] ="zoom_previous";
 338     legacyNames["zoom-next"] ="zoom_next";
 339     legacyNames["zoom-in"] ="zoom_in";
 340     legacyNames["zoom-out"] ="zoom_out";
 341     legacyNames["show-grid"] ="grid";
 342     legacyNames["show-guides"] ="guides";
 343     legacyNames["color-management"] ="color_management";
 344     legacyNames["show-dialogs"] ="dialog_toggle";
 345     legacyNames["dialog-messages"] ="messages";
 346     legacyNames["dialog-scripts"] ="scripts";
 347     legacyNames["window-previous"] ="window_previous";
 348     legacyNames["window-next"] ="window_next";
 349     legacyNames["dialog-icon-preview"] ="view_icon_preview";
 350     legacyNames["window-new"] ="view_new";
 351     legacyNames["view-fullscreen"] ="fullscreen";
 352     legacyNames["layer-new"] ="new_layer";
 353     legacyNames["layer-rename"] ="rename_layer";
 354     legacyNames["layer-previous"] ="switch_to_layer_above";
 355     legacyNames["layer-next"] ="switch_to_layer_below";
 356     legacyNames["selection-move-to-layer-above"] ="move_selection_above";
 357     legacyNames["selection-move-to-layer-below"] ="move_selection_below";
 358     legacyNames["layer-raise"] ="raise_layer";
 359     legacyNames["layer-lower"] ="lower_layer";
 360     legacyNames["layer-top"] ="layer_to_top";
 361     legacyNames["layer-bottom"] ="layer_to_bottom";
 362     legacyNames["layer-delete"] ="delete_layer";
 363     legacyNames["dialog-layers"] ="layers";
 364     legacyNames["dialog-fill-and-stroke"] ="fill_and_stroke";
 365     legacyNames["dialog-object-properties"] ="dialog_item_properties";
 366     legacyNames["object-group"] ="selection_group";
 367     legacyNames["object-ungroup"] ="selection_ungroup";
 368     legacyNames["selection-raise"] ="selection_up";
 369     legacyNames["selection-lower"] ="selection_down";
 370     legacyNames["selection-top"] ="selection_top";
 371     legacyNames["selection-bottom"] ="selection_bot";
 372     legacyNames["object-rotate-left"] ="object_rotate_90_CCW";
 373     legacyNames["object-rotate-right"] ="object_rotate_90_CW";
 374     legacyNames["object-flip-horizontal"] ="object_flip_hor";
 375     legacyNames["object-flip-vertical"] ="object_flip_ver";
 376     legacyNames["dialog-transform"] ="object_trans";
 377     legacyNames["dialog-align-and-distribute"] ="object_align";
 378     legacyNames["dialog-rows-and-columns"] ="grid_arrange";
 379     legacyNames["object-to-path"] ="object_tocurve";
 380     legacyNames["stroke-to-path"] ="stroke_tocurve";
 381     legacyNames["bitmap-trace"] ="selection_trace";
 382     legacyNames["path-union"] ="union";
 383     legacyNames["path-difference"] ="difference";
 384     legacyNames["path-intersection"] ="intersection";
 385     legacyNames["path-exclusion"] ="exclusion";
 386     legacyNames["path-division"] ="division";
 387     legacyNames["path-cut"] ="cut_path";
 388     legacyNames["path-combine"] ="selection_combine";
 389     legacyNames["path-break-apart"] ="selection_break";
 390     legacyNames["path-outset"] ="outset_path";
 391     legacyNames["path-inset"] ="inset_path";
 392     legacyNames["path-offset-dynamic"] ="dynamic_offset";
 393     legacyNames["path-offset-linked"] ="linked_offset";
 394     legacyNames["path-simplify"] ="simplify";
 395     legacyNames["path-reverse"] ="selection_reverse";
 396     legacyNames["dialog-text-and-font"] ="object_font";
 397     legacyNames["text-put-on-path"] ="put_on_path";
 398     legacyNames["text-remove-from-path"] ="remove_from_path";
 399     legacyNames["text-flow-into-frame"] ="flow_into_frame";
 400     legacyNames["text-unflow"] ="unflow";
 401     legacyNames["text-convert-to-regular"] ="convert_to_text";
 402     legacyNames["text-unkern"] ="remove_manual_kerns";
 403     legacyNames["help-keyboard-shortcuts"] ="help_keys";
 404     legacyNames["help-contents"] ="help_tutorials";
 405     legacyNames["inkscape-logo"] ="inkscape_options";
 406     legacyNames["dialog-memory"] ="about_memory";
 407     legacyNames["tool-pointer"] ="draw_select";
 408     legacyNames["tool-node-editor"] ="draw_node";
 409     legacyNames["tool-tweak"] ="draw_tweak";
 410     legacyNames["zoom"] ="draw_zoom";
 411     legacyNames["draw-rectangle"] ="draw_rect";
 412     legacyNames["draw-cuboid"] ="draw_3dbox";
 413     legacyNames["draw-ellipse"] ="draw_arc";
 414     legacyNames["draw-polygon-star"] ="draw_star";
 415     legacyNames["draw-spiral"] ="draw_spiral";
 416     legacyNames["draw-freehand"] ="draw_freehand";
 417     legacyNames["draw-path"] ="draw_pen";
 418     legacyNames["draw-calligraphic"] ="draw_calligraphic";
 419     legacyNames["draw-eraser"] ="draw_erase";
 420     legacyNames["color-fill"] ="draw_paintbucket";
 421     legacyNames["draw-text"] ="draw_text";
 422     legacyNames["draw-connector"] ="draw_connector";
 423     legacyNames["color-gradient"] ="draw_gradient";
 424     legacyNames["color-picker"] ="draw_dropper";
 425     legacyNames["transform-affect-stroke"] ="transform_stroke";
 426     legacyNames["transform-affect-rounded-corners"] ="transform_corners";
 427     legacyNames["transform-affect-gradient"] ="transform_gradient";
 428     legacyNames["transform-affect-pattern"] ="transform_pattern";
 429     legacyNames["node-add"] ="node_insert";
 430     legacyNames["node-delete"] ="node_delete";
 431     legacyNames["node-join"] ="node_join";
 432     legacyNames["node-break"] ="node_break";
 433     legacyNames["node-join-segment"] ="node_join_segment";
 434     legacyNames["node-delete-segment"] ="node_delete_segment";
 435     legacyNames["node-type-cusp"] ="node_cusp";
 436     legacyNames["node-type-smooth"] ="node_smooth";
 437     legacyNames["node-type-symmetric"] ="node_symmetric";
 438     legacyNames["node-type-auto-smooth"] ="node_auto";
 439     legacyNames["node-segment-curve"] ="node_curve";
 440     legacyNames["node-segment-line"] ="node_line";
 441     legacyNames["show-node-handles"] ="nodes_show_handles";
 442     legacyNames["path-effect-parameter-next"] ="edit_next_parameter";
 443     legacyNames["show-path-outline"] ="nodes_show_helperpath";
 444     legacyNames["path-clip-edit"] ="nodeedit-clippath";
 445     legacyNames["path-mask-edit"] ="nodeedit-mask";
 446     legacyNames["node-type-cusp"] ="node_cusp";
 447     legacyNames["object-tweak-push"] ="tweak_move_mode";
 448     legacyNames["object-tweak-attract"] ="tweak_move_mode_inout";
 449     legacyNames["object-tweak-randomize"] ="tweak_move_mode_jitter";
 450     legacyNames["object-tweak-shrink"] ="tweak_scale_mode";
 451     legacyNames["object-tweak-rotate"] ="tweak_rotate_mode";
 452     legacyNames["object-tweak-duplicate"] ="tweak_moreless_mode";
 453     legacyNames["object-tweak-push"] ="tweak_move_mode";
 454     legacyNames["path-tweak-push"] ="tweak_push_mode";
 455     legacyNames["path-tweak-shrink"] ="tweak_shrink_mode";
 456     legacyNames["path-tweak-attract"] ="tweak_attract_mode";
 457     legacyNames["path-tweak-roughen"] ="tweak_roughen_mode";
 458     legacyNames["object-tweak-paint"] ="tweak_colorpaint_mode";
 459     legacyNames["object-tweak-jitter-color"] ="tweak_colorjitter_mode";
 460     legacyNames["object-tweak-blur"] ="tweak_blur_mode";
 461     legacyNames["rectangle-make-corners-sharp"] ="squared_corner";
 462     legacyNames["perspective-parallel"] ="toggle_vp_x";
 463     legacyNames["draw-ellipse-whole"] ="reset_circle";
 464     legacyNames["draw-ellipse-segment"] ="circle_closed_arc";
 465     legacyNames["draw-ellipse-arc"] ="circle_open_arc";
 466     legacyNames["draw-polygon"] ="star_flat";
 467     legacyNames["draw-star"] ="star_angled";
 468     legacyNames["path-mode-bezier"] ="bezier_mode";
 469     legacyNames["path-mode-spiro"] ="spiro_splines_mode";
 470     legacyNames["path-mode-polyline"] ="polylines_mode";
 471     legacyNames["path-mode-polyline-paraxial"] ="paraxial_lines_mode";
 472     legacyNames["draw-use-tilt"] ="guse_tilt";
 473     legacyNames["draw-use-pressure"] ="guse_pressure";
 474     legacyNames["draw-trace-background"] ="trace_background";
 475     legacyNames["draw-eraser-delete-objects"] ="delete_object";
 476     legacyNames["format-text-direction-vertical"] ="writing_mode_tb";
 477     legacyNames["format-text-direction-horizontal"] ="writing_mode_lr";
 478     legacyNames["connector-avoid"] ="connector_avoid";
 479     legacyNames["connector-ignore"] ="connector_ignore";
 480     legacyNames["object-fill"] ="controls_fill";
 481     legacyNames["object-stroke"] ="controls_stroke";
 482     legacyNames["snap"] ="toggle_snap_global";
 483     legacyNames["snap-bounding-box"] ="toggle_snap_bbox";
 484     legacyNames["snap-bounding-box-edges"] ="toggle_snap_to_bbox_path";
 485     legacyNames["snap-bounding-box-corners"] ="toggle_snap_to_bbox_node";
 486     legacyNames["snap-bounding-box-midpoints"] ="toggle_snap_to_bbox_edge_midpoints";
 487     legacyNames["snap-bounding-box-center"] ="toggle_snap_to_bbox_midpoints";
 488     legacyNames["snap-nodes"] ="toggle_snap_nodes";
 489     legacyNames["snap-nodes-path"] ="toggle_snap_to_paths";
 490     legacyNames["snap-nodes-cusp"] ="toggle_snap_to_nodes";
 491     legacyNames["snap-nodes-smooth"] ="toggle_snap_to_smooth_nodes";
 492     legacyNames["snap-nodes-midpoint"] ="toggle_snap_to_midpoints";
 493     legacyNames["snap-nodes-intersection"] ="toggle_snap_to_path_intersections";
 494     legacyNames["snap-nodes-center"] ="toggle_snap_to_bbox_midpoints-3";
 495     legacyNames["snap-nodes-rotation-center"] ="toggle_snap_center";
 496     legacyNames["snap-page"] ="toggle_snap_page_border";
 497     legacyNames["snap-grid-guide-intersections"] ="toggle_snap_grid_guide_intersections";
 498     legacyNames["align-horizontal-right-to-anchor"] ="al_left_out";
 499     legacyNames["align-horizontal-left"] ="al_left_in";
 500     legacyNames["align-horizontal-center"] ="al_center_hor";
 501     legacyNames["align-horizontal-right"] ="al_right_in";
 502     legacyNames["align-horizontal-left-to-anchor"] ="al_right_out";
 503     legacyNames["align-horizontal-baseline"] ="al_baselines_vert";
 504     legacyNames["align-vertical-bottom-to-anchor"] ="al_top_out";
 505     legacyNames["align-vertical-top"] ="al_top_in";
 506     legacyNames["align-vertical-center"] ="al_center_ver";
 507     legacyNames["align-vertical-bottom"] ="al_bottom_in";
 508     legacyNames["align-vertical-top-to-anchor"] ="al_bottom_out";
 509     legacyNames["align-vertical-baseline"] ="al_baselines_hor";
 510     legacyNames["distribute-horizontal-left"] ="distribute_left";
 511     legacyNames["distribute-horizontal-center"] ="distribute_hcentre";
 512     legacyNames["distribute-horizontal-right"] ="distribute_right";
 513     legacyNames["distribute-horizontal-baseline"] ="distribute_baselines_hor";
 514     legacyNames["distribute-vertical-bottom"] ="distribute_bottom";
 515     legacyNames["distribute-vertical-center"] ="distribute_vcentre";
 516     legacyNames["distribute-vertical-top"] ="distribute_top";
 517     legacyNames["distribute-vertical-baseline"] ="distribute_baselines_vert";
 518     legacyNames["distribute-randomize"] ="distribute_randomize";
 519     legacyNames["distribute-unclump"] ="unclump";
 520     legacyNames["distribute-graph"] ="graph_layout";
 521     legacyNames["distribute-graph-directed"] ="directed_graph";
 522     legacyNames["distribute-remove-overlaps"] ="remove_overlaps";
 523     legacyNames["align-horizontal-node"] ="node_valign";
 524     legacyNames["align-vertical-node"] ="node_halign";
 525     legacyNames["distribute-vertical-node"] ="node_vdistribute";
 526     legacyNames["distribute-horizontal-node"] ="node_hdistribute";
 527     legacyNames["xml-element-new"] ="add_xml_element_node";
 528     legacyNames["xml-text-new"] ="add_xml_text_node";
 529     legacyNames["xml-node-delete"] ="delete_xml_node";
 530     legacyNames["xml-node-duplicate"] ="duplicate_xml_node";
 531     legacyNames["xml-attribute-delete"] ="delete_xml_attribute";
 532     legacyNames["transform-move-horizontal"] ="arrows_hor";
 533     legacyNames["transform-move-vertical"] ="arrows_ver";
 534     legacyNames["transform-scale-horizontal"] ="transform_scale_hor";
 535     legacyNames["transform-scale-vertical"] ="transform_scale_ver";
 536     legacyNames["transform-skew-horizontal"] ="transform_scew_hor";
 537     legacyNames["transform-skew-vertical"] ="transform_scew_ver";
 538     legacyNames["object-fill"] ="properties_fill";
 539     legacyNames["object-stroke"] ="properties_stroke_paint";
 540     legacyNames["object-stroke-style"] ="properties_stroke";
 541     legacyNames["paint-none"] ="fill_none";
 542     legacyNames["paint-solid"] ="fill_solid";
 543     legacyNames["paint-gradient-linear"] ="fill_gradient";
 544     legacyNames["paint-gradient-radial"] ="fill_radial";
 545     legacyNames["paint-pattern"] ="fill_pattern";
 546     legacyNames["paint-unknown"] ="fill_unset";
 547     legacyNames["fill-rule-even-odd"] ="fillrule_evenodd";
 548     legacyNames["fill-rule-nonzero"] ="fillrule_nonzero";
 549     legacyNames["stroke-join-miter"] ="join_miter";
 550     legacyNames["stroke-join-bevel"] ="join_bevel";
 551     legacyNames["stroke-join-round"] ="join_round";
 552     legacyNames["stroke-cap-butt"] ="cap_butt";
 553     legacyNames["stroke-cap-square"] ="cap_square";
 554     legacyNames["stroke-cap-round"] ="cap_round";
 555     legacyNames["guides"] ="guide";
 556     legacyNames["grid-rectangular"] ="grid_xy";
 557     legacyNames["grid-axonometric"] ="grid_axonom";
 558     legacyNames["object-visible"] ="visible";
 559     legacyNames["object-hidden"] ="hidden";
 560     legacyNames["object-unlocked"] ="lock_unlocked";
 561     legacyNames["object-locked"] ="width_height_lock";
 562     legacyNames["zoom"] ="sticky_zoom";
 563 }
 564
 565 GtkWidget *IconImpl::newFull( Inkscape::IconSize lsize, gchar const *name )
 566 {
 567     static bool dump = Inkscape::Preferences::get()->getBool("/debug/icons/dumpGtk");
 568
 569     GtkWidget *widget = 0;
 570     gint trySize = CLAMP( static_cast<gint>(lsize), 0, static_cast<gint>(G_N_ELEMENTS(iconSizeLookup) - 1) );
 571     if ( !sizeMapDone ) {
 572         injectCustomSize();
 573     }
 574     GtkIconSize mappedSize = iconSizeLookup[trySize];
 575
 576     GtkStockItem stock;
 577     gboolean stockFound = gtk_stock_lookup( name, &stock );
 578
 579     GtkWidget *img = 0;
 580     if ( legacyNames.empty() ) {
 581         setupLegacyNaming();
 582     }
 583
 584     if ( stockFound ) {
 585         img = gtk_image_new_from_stock( name, mappedSize );
 586     } else {
 587         img = gtk_image_new_from_icon_name( name, mappedSize );
 588         if ( dump ) {
 589             g_message("gtk_image_new_from_icon_name( '%s', %d ) = %p", name, mappedSize, img);
 590             GtkImageType thing = gtk_image_get_storage_type(GTK_IMAGE(img));
 591             g_message("      Type is %d  %s", (int)thing, (thing == GTK_IMAGE_EMPTY ? "Empty" : "ok"));
 592         }
 593     }
 594
 595     if ( img ) {
 596         GtkImageType type = gtk_image_get_storage_type( GTK_IMAGE(img) );
 597         if ( type == GTK_IMAGE_STOCK ) {
 598             if ( !stockFound ) {
 599                 // It's not showing as a stock ID, so assume it will be present internally
 600                 addPreRender( mappedSize, name );
 601
 602                 // Add a hook to render if set visible before prerender is done.
 603                 g_signal_connect( G_OBJECT(img), "map", G_CALLBACK(imageMapCB), GINT_TO_POINTER(static_cast<int>(mappedSize)) );
 604                 if ( dump ) {
 605                     g_message("      connecting %p for imageMapCB for [%s] %d", img, name, (int)mappedSize);
 606                 }
 607             }
 608             widget = GTK_WIDGET(img);
 609             img = 0;
 610             if ( dump ) {
 611                 g_message( "loaded gtk  '%s' %d  (GTK_IMAGE_STOCK) %s  on %p", name, mappedSize, (stockFound ? "STOCK" : "local"), widget );
 612             }
 613         } else if ( type == GTK_IMAGE_ICON_NAME ) {
 614             widget = GTK_WIDGET(img);
 615             img = 0;
 616
 617             // Add a hook to render if set visible before prerender is done.
 618             g_signal_connect( G_OBJECT(widget), "map", G_CALLBACK(imageMapNamedCB), GINT_TO_POINTER(0) );
 619
 620             if ( Inkscape::Preferences::get()->getBool("/options/iconrender/named_nodelay") ) {
 621                 int psize = getPhysSize(lsize);
 622                 prerenderIcon(name, mappedSize, psize);
 623             } else {
 624                 addPreRender( mappedSize, name );
 625             }
 626         } else {
 627             if ( dump ) {
 628                 g_message( "skipped gtk '%s' %d  (not GTK_IMAGE_STOCK)", name, lsize );
 629             }
 630             //g_object_unref( (GObject *)img );
 631             img = 0;
 632         }
 633     }
 634
 635     if ( !widget ) {
 636         //g_message("Creating an SPIcon instance for %s:%d", name, (int)lsize);
 637         SPIcon *icon = (SPIcon *)g_object_new(SP_TYPE_ICON, NULL);
 638         icon->lsize = lsize;
 639         icon->name = g_strdup(name);
 640         icon->psize = getPhysSize(lsize);
 641
 642         widget = GTK_WIDGET(icon);
 643     }
 644
 645     return widget;
 646 }
 647
 648 // PUBLIC CALL:
 649 GtkWidget *sp_icon_new( Inkscape::IconSize lsize, gchar const *name )
 650 {
 651     return IconImpl::newFull( lsize, name );
 652 }
 653
 654 // PUBLIC CALL:
 655 Gtk::Widget *sp_icon_get_icon( Glib::ustring const &oid, Inkscape::IconSize size )
 656 {
 657     Gtk::Widget *result = 0;
 658     GtkWidget *widget = IconImpl::newFull( static_cast<Inkscape::IconSize>(Inkscape::getRegisteredIconSize(size)), oid.c_str() );
 659
 660     if ( widget ) {
 661         if ( GTK_IS_IMAGE(widget) ) {
 662             GtkImage *img = GTK_IMAGE(widget);
 663             result = Glib::wrap( img );
 664         } else {
 665             result = Glib::wrap( widget );
 666         }
 667     }
 668
 669     return result;
 670 }
 671
 672 void IconImpl::injectCustomSize()
 673 {
 674     // TODO - still need to handle the case of theme changes and resize, especially as we can't re-register a string.
 675     if ( !sizeMapDone )
 676     {
 677         bool dump = Inkscape::Preferences::get()->getBool("/debug/icons/dumpDefault");
 678         gint width = 0;
 679         gint height = 0;
 680         if ( gtk_icon_size_lookup(GTK_ICON_SIZE_MENU, &width, &height ) ) {
 681             gint newWidth = ((width * 3) / 4);
 682             gint newHeight = ((height * 3) / 4);
 683             GtkIconSize newSizeEnum = gtk_icon_size_register( "inkscape-decoration", newWidth, newHeight );
 684             if ( newSizeEnum ) {
 685                 if ( dump ) {
 686                     g_message("Registered (%d, %d) <= (%d, %d) as index %d", newWidth, newHeight, width, height, newSizeEnum);
 687                 }
 688                 guint index = static_cast<guint>(Inkscape::ICON_SIZE_DECORATION);
 689                 if ( index < G_N_ELEMENTS(iconSizeLookup) ) {
 690                     iconSizeLookup[index] = newSizeEnum;
 691                 } else if ( dump ) {
 692                     g_message("size lookup array too small to store entry");
 693                 }
 694             }
 695         }
 696         sizeMapDone = true;
 697     }
 698 }
 699
 700 GtkIconSize Inkscape::getRegisteredIconSize( Inkscape::IconSize size )
 701 {
 702     GtkIconSize other = GTK_ICON_SIZE_MENU;
 703     IconImpl::injectCustomSize();
 704     size = CLAMP( size, Inkscape::ICON_SIZE_MENU, Inkscape::ICON_SIZE_DECORATION );
 705     if ( size == Inkscape::ICON_SIZE_DECORATION ) {
 706         other = gtk_icon_size_from_name("inkscape-decoration");
 707     } else {
 708         other = static_cast<GtkIconSize>(size);
 709     }
 710
 711     return other;
 712 }
 713
 714
 715 // PUBLIC CALL:
 716 int sp_icon_get_phys_size(int size)
 717 {
 718     return IconImpl::getPhysSize(size);
 719 }
 720
 721 int IconImpl::getPhysSize(int size)
 722 {
 723     static bool init = false;
 724     static int lastSys[Inkscape::ICON_SIZE_DECORATION + 1];
 725     static int vals[Inkscape::ICON_SIZE_DECORATION + 1];
 726
 727     size = CLAMP( size, static_cast<int>(GTK_ICON_SIZE_MENU), static_cast<int>(Inkscape::ICON_SIZE_DECORATION) );
 728
 729     if ( !sizeMapDone ) {
 730         injectCustomSize();
 731     }
 732
 733     if ( sizeDirty && init ) {
 734         GtkIconSize const gtkSizes[] = {
 735             GTK_ICON_SIZE_MENU,
 736             GTK_ICON_SIZE_SMALL_TOOLBAR,
 737             GTK_ICON_SIZE_LARGE_TOOLBAR,
 738             GTK_ICON_SIZE_BUTTON,
 739             GTK_ICON_SIZE_DND,
 740             GTK_ICON_SIZE_DIALOG,
 741             static_cast<guint>(Inkscape::ICON_SIZE_DECORATION) < G_N_ELEMENTS(iconSizeLookup) ?
 742                 iconSizeLookup[static_cast<int>(Inkscape::ICON_SIZE_DECORATION)] :
 743                 GTK_ICON_SIZE_MENU
 744         };
 745         for (unsigned i = 0; i < G_N_ELEMENTS(gtkSizes) && init; ++i) {
 746             guint const val_ix = (gtkSizes[i] <= GTK_ICON_SIZE_DIALOG) ? (guint)gtkSizes[i] : (guint)Inkscape::ICON_SIZE_DECORATION;
 747
 748             g_assert( val_ix < G_N_ELEMENTS(vals) );
 749
 750             gint width = 0;
 751             gint height = 0;
 752             if ( gtk_icon_size_lookup(gtkSizes[i], &width, &height ) ) {
 753                 init &= (lastSys[val_ix] == std::max(width, height));
 754             }
 755         }
 756     }
 757
 758     if ( !init ) {
 759         sizeDirty = false;
 760         bool dump = Inkscape::Preferences::get()->getBool("/debug/icons/dumpDefault");
 761         if ( dump ) {
 762             g_message( "Default icon sizes:" );
 763         }
 764         memset( vals, 0, sizeof(vals) );
 765         memset( lastSys, 0, sizeof(lastSys) );
 766         GtkIconSize const gtkSizes[] = {
 767             GTK_ICON_SIZE_MENU,
 768             GTK_ICON_SIZE_SMALL_TOOLBAR,
 769             GTK_ICON_SIZE_LARGE_TOOLBAR,
 770             GTK_ICON_SIZE_BUTTON,
 771             GTK_ICON_SIZE_DND,
 772             GTK_ICON_SIZE_DIALOG,
 773             static_cast<guint>(Inkscape::ICON_SIZE_DECORATION) < G_N_ELEMENTS(iconSizeLookup) ?
 774                 iconSizeLookup[static_cast<int>(Inkscape::ICON_SIZE_DECORATION)] :
 775                 GTK_ICON_SIZE_MENU
 776         };
 777         gchar const *const names[] = {
 778             "GTK_ICON_SIZE_MENU",
 779             "GTK_ICON_SIZE_SMALL_TOOLBAR",
 780             "GTK_ICON_SIZE_LARGE_TOOLBAR",
 781             "GTK_ICON_SIZE_BUTTON",
 782             "GTK_ICON_SIZE_DND",
 783             "GTK_ICON_SIZE_DIALOG",
 784             "inkscape-decoration"
 785         };
 786
 787         GtkWidget *icon = (GtkWidget *)g_object_new(SP_TYPE_ICON, NULL);
 788
 789         for (unsigned i = 0; i < G_N_ELEMENTS(gtkSizes); ++i) {
 790             guint const val_ix = (gtkSizes[i] <= GTK_ICON_SIZE_DIALOG) ? (guint)gtkSizes[i] : (guint)Inkscape::ICON_SIZE_DECORATION;
 791
 792             g_assert( val_ix < G_N_ELEMENTS(vals) );
 793
 794             gint width = 0;
 795             gint height = 0;
 796             bool used = false;
 797             if ( gtk_icon_size_lookup(gtkSizes[i], &width, &height ) ) {
 798                 vals[val_ix] = std::max(width, height);
 799                 lastSys[val_ix] = vals[val_ix];
 800                 used = true;
 801             }
 802             if (dump) {
 803                 g_message(" =--  %u  size:%d  %c(%d, %d)   '%s'",
 804                           i, gtkSizes[i],
 805                           ( used ? ' ' : 'X' ), width, height, names[i]);
 806             }
 807
 808             // The following is needed due to this documented behavior of gtk_icon_size_lookup:
 809             //   "The rendered pixbuf may not even correspond to the width/height returned by
 810             //   gtk_icon_size_lookup(), because themes are free to render the pixbuf however
 811             //   they like, including changing the usual size."
 812             gchar const *id = GTK_STOCK_OPEN;
 813             GdkPixbuf *pb = gtk_widget_render_icon( icon, id, gtkSizes[i], NULL);
 814             if (pb) {
 815                 width = gdk_pixbuf_get_width(pb);
 816                 height = gdk_pixbuf_get_height(pb);
 817                 int newSize = std::max( width, height );
 818                 // TODO perhaps check a few more stock icons to get a range on sizes.
 819                 if ( newSize > 0 ) {
 820                     vals[val_ix] = newSize;
 821                 }
 822                 if (dump) {
 823                     g_message("      %u  size:%d   (%d, %d)", i, gtkSizes[i], width, height);
 824                 }
 825
 826                 g_object_unref(G_OBJECT(pb));
 827             }
 828         }
 829         //g_object_unref(icon);
 830         init = true;
 831     }
 832
 833     return vals[size];
 834 }
 835
 836 void IconImpl::paint(SPIcon *icon, GdkRectangle const */*area*/)
 837 {
 838     GtkWidget &widget = *GTK_WIDGET(icon);
 839     GdkPixbuf *image = icon->pb;
 840     bool unref_image = false;
 841
 842     /* copied from the expose function of GtkImage */
 843     if (GTK_WIDGET_STATE (icon) != GTK_STATE_NORMAL && image) {
 844         GtkIconSource *source = gtk_icon_source_new();
 845         gtk_icon_source_set_pixbuf(source, icon->pb);
 846         gtk_icon_source_set_size(source, GTK_ICON_SIZE_SMALL_TOOLBAR); // note: this is boilerplate and not used
 847         gtk_icon_source_set_size_wildcarded(source, FALSE);
 848         image = gtk_style_render_icon (widget.style, source, gtk_widget_get_direction(&widget),
 849             (GtkStateType) GTK_WIDGET_STATE(&widget), (GtkIconSize)-1, &widget, "gtk-image");
 850         gtk_icon_source_free(source);
 851         unref_image = true;
 852     }
 853
 854     if (image) {
 855         int x = floor(widget.allocation.x + ((widget.allocation.width - widget.requisition.width) * 0.5));
 856         int y = floor(widget.allocation.y + ((widget.allocation.height - widget.requisition.height) * 0.5));
 857         int width = gdk_pixbuf_get_width(image);
 858         int height = gdk_pixbuf_get_height(image);
 859         // Limit drawing to when we actually have something. Avoids some crashes.
 860         if ( (width > 0) && (height > 0) ) {
 861             gdk_draw_pixbuf(GDK_DRAWABLE(widget.window), widget.style->black_gc, image,
 862                             0, 0, x, y, width, height,
 863                             GDK_RGB_DITHER_NORMAL, x, y);
 864         }
 865     }
 866
 867     if (unref_image) {
 868         g_object_unref(G_OBJECT(image));
 869     }
 870 }
 871
 872 GdkPixbuf *IconImpl::loadPixmap(gchar const *name, unsigned /*lsize*/, unsigned psize)
 873 {
 874     gchar *path = (gchar *) g_strdup_printf("%s/%s.png", INKSCAPE_PIXMAPDIR, name);
 875     // TODO: bulia, please look over
 876     gsize bytesRead = 0;
 877     gsize bytesWritten = 0;
 878     GError *error = NULL;
 879     gchar *localFilename = g_filename_from_utf8( path,
 880                                                  -1,
 881                                                  &bytesRead,
 882                                                  &bytesWritten,
 883                                                  &error);
 884     GdkPixbuf *pb = gdk_pixbuf_new_from_file(localFilename, NULL);
 885     g_free(localFilename);
 886     g_free(path);
 887     if (!pb) {
 888         path = (gchar *) g_strdup_printf("%s/%s.xpm", INKSCAPE_PIXMAPDIR, name);
 889         // TODO: bulia, please look over
 890         gsize bytesRead = 0;
 891         gsize bytesWritten = 0;
 892         GError *error = NULL;
 893         gchar *localFilename = g_filename_from_utf8( path,
 894                                                      -1,
 895                                                      &bytesRead,
 896                                                      &bytesWritten,
 897                                                      &error);
 898         pb = gdk_pixbuf_new_from_file(localFilename, NULL);
 899         g_free(localFilename);
 900         g_free(path);
 901     }
 902
 903     if (pb) {
 904         if (!gdk_pixbuf_get_has_alpha(pb)) {
 905             gdk_pixbuf_add_alpha(pb, FALSE, 0, 0, 0);
 906         }
 907
 908         if ( ( static_cast<unsigned>(gdk_pixbuf_get_width(pb)) != psize )
 909              || ( static_cast<unsigned>(gdk_pixbuf_get_height(pb)) != psize ) ) {
 910             GdkPixbuf *spb = gdk_pixbuf_scale_simple(pb, psize, psize, GDK_INTERP_HYPER);
 911             g_object_unref(G_OBJECT(pb));
 912             pb = spb;
 913         }
 914     }
 915
 916     return pb;
 917 }
 918
 919 // takes doc, root, icon, and icon name to produce pixels
 920 extern "C" guchar *sp_icon_doc_icon( SPDocument *doc, NRArenaItem *root,
 921                                      gchar const *name, unsigned psize )
 922 {
 923     bool const dump = Inkscape::Preferences::get()->getBool("/debug/icons/dumpSvg");
 924     guchar *px = NULL;
 925
 926     if (doc) {
 927         SPObject *object = doc->getObjectById(name);
 928         if (object && SP_IS_ITEM(object)) {
 929             /* Find bbox in document */
 930             Geom::Matrix const i2doc(SP_ITEM(object)->i2doc_affine());
 931             Geom::OptRect dbox = SP_ITEM(object)->getBounds(i2doc);
 932
 933             if ( SP_OBJECT_PARENT(object) == NULL )
 934             {
 935                 dbox = Geom::Rect(Geom::Point(0, 0),
 936                                 Geom::Point(doc->getWidth(), doc->getHeight()));
 937             }
 938
 939             /* This is in document coordinates, i.e. pixels */
 940             if ( dbox ) {
 941                 NRGC gc(NULL);
 942                 /* Update to renderable state */
 943                 double sf = 1.0;
 944                 nr_arena_item_set_transform(root, (Geom::Matrix)Geom::Scale(sf, sf));
 945                 gc.transform.setIdentity();
 946                 nr_arena_item_invoke_update( root, NULL, &gc,
 947                                              NR_ARENA_ITEM_STATE_ALL,
 948                                              NR_ARENA_ITEM_STATE_NONE );
 949                 /* Item integer bbox in points */
 950                 NRRectL ibox;
 951                 ibox.x0 = (int) floor(sf * dbox->min()[Geom::X] + 0.5);
 952                 ibox.y0 = (int) floor(sf * dbox->min()[Geom::Y] + 0.5);
 953                 ibox.x1 = (int) floor(sf * dbox->max()[Geom::X] + 0.5);
 954                 ibox.y1 = (int) floor(sf * dbox->max()[Geom::Y] + 0.5);
 955
 956                 if ( dump ) {
 957                     g_message( "   box    --'%s'  (%f,%f)-(%f,%f)", name, (double)ibox.x0, (double)ibox.y0, (double)ibox.x1, (double)ibox.y1 );
 958                 }
 959
 960                 /* Find button visible area */
 961                 int width = ibox.x1 - ibox.x0;
 962                 int height = ibox.y1 - ibox.y0;
 963
 964                 if ( dump ) {
 965                     g_message( "   vis    --'%s'  (%d,%d)", name, width, height );
 966                 }
 967
 968                 {
 969                     int block = std::max(width, height);
 970                     if (block != static_cast<int>(psize) ) {
 971                         if ( dump ) {
 972                             g_message("      resizing" );
 973                         }
 974                         sf = (double)psize / (double)block;
 975
 976                         nr_arena_item_set_transform(root, (Geom::Matrix)Geom::Scale(sf, sf));
 977                         gc.transform.setIdentity();
 978                         nr_arena_item_invoke_update( root, NULL, &gc,
 979                                                      NR_ARENA_ITEM_STATE_ALL,
 980                                                      NR_ARENA_ITEM_STATE_NONE );
 981                         /* Item integer bbox in points */
 982                         ibox.x0 = (int) floor(sf * dbox->min()[Geom::X] + 0.5);
 983                         ibox.y0 = (int) floor(sf * dbox->min()[Geom::Y] + 0.5);
 984                         ibox.x1 = (int) floor(sf * dbox->max()[Geom::X] + 0.5);
 985                         ibox.y1 = (int) floor(sf * dbox->max()[Geom::Y] + 0.5);
 986
 987                         if ( dump ) {
 988                             g_message( "   box2   --'%s'  (%f,%f)-(%f,%f)", name, (double)ibox.x0, (double)ibox.y0, (double)ibox.x1, (double)ibox.y1 );
 989                         }
 990
 991                         /* Find button visible area */
 992                         width = ibox.x1 - ibox.x0;
 993                         height = ibox.y1 - ibox.y0;
 994                         if ( dump ) {
 995                             g_message( "   vis2   --'%s'  (%d,%d)", name, width, height );
 996                         }
 997                     }
 998                 }
 999
1000                 int dx, dy;
1001                 //dx = (psize - width) / 2;
1002                 //dy = (psize - height) / 2;
1003                 dx=dy=psize;
1004                 dx=(dx-width)/2; // watch out for psize, since 'unsigned'-'signed' can cause problems if the result is negative
1005                 dy=(dy-height)/2;
1006                 NRRectL area;
1007                 area.x0 = ibox.x0 - dx;
1008                 area.y0 = ibox.y0 - dy;
1009                 area.x1 = area.x0 + psize;
1010                 area.y1 = area.y0 + psize;
1011                 /* Actual renderable area */
1012                 NRRectL ua;
1013                 ua.x0 = MAX(ibox.x0, area.x0);
1014                 ua.y0 = MAX(ibox.y0, area.y0);
1015                 ua.x1 = MIN(ibox.x1, area.x1);
1016                 ua.y1 = MIN(ibox.y1, area.y1);
1017
1018                 if ( dump ) {
1019                     g_message( "   area   --'%s'  (%f,%f)-(%f,%f)", name, (double)area.x0, (double)area.y0, (double)area.x1, (double)area.y1 );
1020                     g_message( "   ua     --'%s'  (%f,%f)-(%f,%f)", name, (double)ua.x0, (double)ua.y0, (double)ua.x1, (double)ua.y1 );
1021                 }
1022                 /* Set up pixblock */
1023                 px = g_new(guchar, 4 * psize * psize);
1024                 memset(px, 0x00, 4 * psize * psize);
1025                 /* Render */
1026                 NRPixBlock B;
1027                 nr_pixblock_setup_extern( &B, NR_PIXBLOCK_MODE_R8G8B8A8N,
1028                                           ua.x0, ua.y0, ua.x1, ua.y1,
1029                                           px + 4 * psize * (ua.y0 - area.y0) +
1030                                           4 * (ua.x0 - area.x0),
1031                                           4 * psize, FALSE, FALSE );
1032                 nr_arena_item_invoke_render(NULL, root, &ua, &B,
1033                                              NR_ARENA_ITEM_RENDER_NO_CACHE );
1034                 nr_pixblock_release(&B);
1035
1036                 if ( Inkscape::Preferences::get()->getBool("/debug/icons/overlaySvg") ) {
1037                     IconImpl::overlayPixels( px, psize, psize, 4 * psize, 0x00, 0x00, 0xff );
1038                 }
1039             }
1040         }
1041     }
1042
1043     return px;
1044 } // end of sp_icon_doc_icon()
1045
1046
1047
1048 class SVGDocCache
1049 {
1050 public:
1051     SVGDocCache( SPDocument *doc, NRArenaItem *root ) : doc(doc), root(root) {}
1052     SPDocument *doc;
1053     NRArenaItem *root;
1054 };
1055
1056 static std::map<Glib::ustring, SVGDocCache *> doc_cache;
1057 static std::map<Glib::ustring, GdkPixbuf *> pb_cache;
1058
1059 Glib::ustring icon_cache_key(Glib::ustring const & name, unsigned psize)
1060 {
1061     Glib::ustring key = name;
1062     key += ":";
1063     key += psize;
1064     return key;
1065 }
1066
1067 GdkPixbuf *get_cached_pixbuf(Glib::ustring const &key) {
1068     GdkPixbuf* pb = 0;
1069     std::map<Glib::ustring, GdkPixbuf *>::iterator found = pb_cache.find(key);
1070     if ( found != pb_cache.end() ) {
1071         pb = found->second;
1072     }
1073     return pb;
1074 }
1075
1076 static std::list<gchar*> &icons_svg_paths()
1077 {
1078     static std::list<gchar *> sources;
1079     static bool initialized = false;
1080     if (!initialized) {
1081         // Fall back from user prefs dir into system locations.
1082         gchar *userdir = profile_path("icons");
1083         sources.push_back(g_build_filename(userdir,"icons.svg", NULL));
1084         sources.push_back(g_build_filename(INKSCAPE_PIXMAPDIR, "icons.svg", NULL));
1085         g_free(userdir);
1086         initialized = true;
1087     }
1088     return sources;
1089 }
1090
1091 // this function renders icons from icons.svg and returns the pixels.
1092 static guchar *load_svg_pixels(std::list<Glib::ustring> const &names,
1093                                unsigned /*lsize*/, unsigned psize)
1094 {
1095     bool const dump = Inkscape::Preferences::get()->getBool("/debug/icons/dumpSvg");
1096     std::list<gchar *> &sources = icons_svg_paths();
1097
1098     // Try each document in turn until we successfully load the icon from one
1099     guchar *px = NULL;
1100     for (std::list<gchar*>::iterator i = sources.begin(); (i != sources.end()) && !px; ++i) {
1101         gchar *doc_filename = *i;
1102         SVGDocCache *info = 0;
1103
1104         // Did we already load this doc?
1105         Glib::ustring key(doc_filename);
1106         {
1107             std::map<Glib::ustring, SVGDocCache *>::iterator i = doc_cache.find(key);
1108             if ( i != doc_cache.end() ) {
1109                 info = i->second;
1110             }
1111         }
1112
1113         // Try to load from document.
1114         if (!info && Inkscape::IO::file_test( doc_filename, G_FILE_TEST_IS_REGULAR ) ) {
1115             SPDocument *doc = SPDocument::createNewDoc( doc_filename, FALSE );
1116             if ( doc ) {
1117                 if ( dump ) {
1118                     g_message("Loaded icon file %s", doc_filename);
1119                 }
1120                 // prep the document
1121                 doc->ensureUpToDate();
1122
1123                 // Create new arena
1124                 NRArena *arena = NRArena::create();
1125
1126                 // Create ArenaItem and set transform
1127                 unsigned visionkey = SPItem::display_key_new(1);
1128                 // fixme: Memory manage root if needed (Lauris)
1129                 // This needs to be fixed indeed; this leads to a memory leak of a few megabytes these days
1130                 // because shapes are being rendered which are not being freed
1131                 NRArenaItem *root = SP_ITEM(doc->getRoot())->invoke_show( arena, visionkey, SP_ITEM_SHOW_DISPLAY );
1132
1133                 // store into the cache
1134                 info = new SVGDocCache(doc, root);
1135                 doc_cache[key] = info;
1136             }
1137         }
1138         if (info) {
1139             for (std::list<Glib::ustring>::const_iterator it = names.begin(); !px && (it != names.end()); ++it ) {
1140                 px = sp_icon_doc_icon( info->doc, info->root, it->c_str(), psize );
1141             }
1142         }
1143     }
1144
1145     return px;
1146 }
1147
1148 static void addToIconSet(GdkPixbuf* pb, gchar const* name, GtkIconSize lsize, unsigned psize) {
1149     static bool dump = Inkscape::Preferences::get()->getBool("/debug/icons/dumpGtk");
1150     GtkStockItem stock;
1151     gboolean stockFound = gtk_stock_lookup( name, &stock );
1152    if ( !stockFound ) {
1153         Gtk::IconTheme::add_builtin_icon( name, psize, Glib::wrap(pb) );
1154         if (dump) {
1155             g_message("    set in a builtin for %s:%d:%d", name, lsize, psize);
1156         }
1157     }
1158 }
1159
1160 void Inkscape::queueIconPrerender( Glib::ustring const &name, Inkscape::IconSize lsize )
1161 {
1162     GtkStockItem stock;
1163     gboolean stockFound = gtk_stock_lookup( name.c_str(), &stock );
1164     gboolean themedFound = gtk_icon_theme_has_icon(gtk_icon_theme_get_default(), name.c_str());
1165     if (!stockFound && !themedFound ) {
1166         gint trySize = CLAMP( static_cast<gint>(lsize), 0, static_cast<gint>(G_N_ELEMENTS(iconSizeLookup) - 1) );
1167         if ( !sizeMapDone ) {
1168             IconImpl::injectCustomSize();
1169         }
1170         GtkIconSize mappedSize = iconSizeLookup[trySize];
1171
1172         int psize = IconImpl::getPhysSize(lsize);
1173         // TODO place in a queue that is triggered by other map events
1174         IconImpl::prerenderIcon(name.c_str(), mappedSize, psize);
1175     }
1176 }
1177
1178 static std::map<unsigned, Glib::ustring> sizePaths;
1179
1180 static std::string getDestDir( unsigned psize )
1181 {
1182     if ( sizePaths.find(psize) == sizePaths.end() ) {
1183         gchar *tmp = g_strdup_printf("%dx%d", psize, psize);
1184         sizePaths[psize] = tmp;
1185         g_free(tmp);
1186     }
1187
1188     return sizePaths[psize];
1189 }
1190
1191 // returns true if icon needed preloading, false if nothing was done
1192 bool IconImpl::prerenderIcon(gchar const *name, GtkIconSize lsize, unsigned psize)
1193 {
1194     bool loadNeeded = false;
1195     static bool dump = Inkscape::Preferences::get()->getBool("/debug/icons/dumpGtk");
1196     static bool useCache = Inkscape::Preferences::get()->getBool("/debug/icons/useCache");
1197
1198     Glib::ustring key = icon_cache_key(name, psize);
1199     if ( !get_cached_pixbuf(key) ) {
1200         if ((internalNames.find(name) != internalNames.end())
1201             || (!gtk_icon_theme_has_icon(gtk_icon_theme_get_default(), name))) {
1202             if (dump) {
1203                 g_message("prerenderIcon  [%s] %d:%d", name, lsize, psize);
1204             }
1205
1206             std::string potentialFile;
1207             bool dataLoaded = false;
1208             if ( useCache ) {
1209                 // In file encoding:
1210                 std::string iconCacheDir = Glib::build_filename(Glib::build_filename(Glib::get_user_cache_dir(), "inkscape"), "icons");
1211                 std::string subpart = getDestDir(psize);
1212                 std::string subdir = Glib::build_filename( iconCacheDir, subpart );
1213                 if ( !Glib::file_test(subdir, Glib::FILE_TEST_EXISTS) ) {
1214                     g_mkdir_with_parents( subdir.c_str(), 0x1ED );
1215                 }
1216                 potentialFile = Glib::build_filename( subdir, name );
1217                 potentialFile += ".png";
1218
1219                 if ( Glib::file_test(potentialFile, Glib::FILE_TEST_EXISTS) && Glib::file_test(potentialFile, Glib::FILE_TEST_IS_REGULAR) ) {
1220                     bool badFile = false;
1221                     try {
1222                         Glib::RefPtr<Gdk::Pixbuf> pb = Gdk::Pixbuf::create_from_file(potentialFile);
1223                         if (pb) {
1224                             dataLoaded = true;
1225                             GdkPixbuf *obj = pb->gobj();
1226                             g_object_ref(obj);
1227                             pb_cache[key] = obj;
1228                             addToIconSet(obj, name, lsize, psize);
1229                             loadNeeded = true;
1230                             if (internalNames.find(name) == internalNames.end()) {
1231                                 internalNames.insert(name);
1232                             }
1233                         }
1234                     } catch ( Glib::FileError &ex ) {
1235                         g_warning("FileError    [%s]", ex.what().c_str());
1236                         badFile = true;
1237                     } catch ( Gdk::PixbufError &ex ) {
1238                         g_warning("PixbufError  [%s]", ex.what().c_str());
1239                         // Invalid contents. Remove cached item
1240                         badFile = true;
1241                     }
1242                     if ( badFile ) {
1243                         g_remove(potentialFile.c_str());
1244                     }
1245                 }
1246             }
1247
1248             if (!dataLoaded) {
1249                 std::list<Glib::ustring> names;
1250                 names.push_back(name);
1251                 if ( legacyNames.find(name) != legacyNames.end() ) {
1252                     names.push_back(legacyNames[name]);
1253                     if ( dump ) {
1254                         g_message("load_svg_pixels([%s] = %s, %d, %d)", name, legacyNames[name].c_str(), lsize, psize);
1255                     }
1256                 }
1257                 guchar* px = load_svg_pixels(names, lsize, psize);
1258                 if (px) {
1259                     GdkPixbuf* pb = gdk_pixbuf_new_from_data( px, GDK_COLORSPACE_RGB, TRUE, 8,
1260                                                               psize, psize, psize * 4,
1261                                                               reinterpret_cast<GdkPixbufDestroyNotify>(g_free), NULL );
1262                     pb_cache[key] = pb;
1263                     addToIconSet(pb, name, lsize, psize);
1264                     loadNeeded = true;
1265                     if (internalNames.find(name) == internalNames.end()) {
1266                         internalNames.insert(name);
1267                     }
1268                     if (useCache) {
1269                         g_object_ref(pb);
1270                         Glib::RefPtr<Gdk::Pixbuf> ppp = Glib::wrap(pb);
1271                         try {
1272                             ppp->save( potentialFile, "png" );
1273                         } catch ( Glib::FileError &ex ) {
1274                             g_warning("FileError    [%s]", ex.what().c_str());
1275                         } catch ( Gdk::PixbufError &ex ) {
1276                             g_warning("PixbufError  [%s]", ex.what().c_str());
1277                         }
1278                     }
1279                 } else if (dump) {
1280                     g_message("XXXXXXXXXXXXXXXXXXXXXXXXXXXXX  error!!! pixels not found for '%s'", name);
1281                 }
1282             }
1283         }
1284         else if (dump) {
1285             g_message("prerenderIcon  [%s] %d NOT!!!!!!", name, psize);
1286         }
1287     }
1288     return loadNeeded;
1289 }
1290
1291 GdkPixbuf *IconImpl::loadSvg(std::list<Glib::ustring> const &names, GtkIconSize lsize, unsigned psize)
1292 {
1293     Glib::ustring key = icon_cache_key(*names.begin(), psize);
1294
1295     // did we already load this icon at this scale/size?
1296     GdkPixbuf* pb = get_cached_pixbuf(key);
1297     if (!pb) {
1298         guchar *px = load_svg_pixels(names, lsize, psize);
1299         if (px) {
1300             pb = gdk_pixbuf_new_from_data(px, GDK_COLORSPACE_RGB, TRUE, 8,
1301                                           psize, psize, psize * 4,
1302                                           (GdkPixbufDestroyNotify)g_free, NULL);
1303             pb_cache[key] = pb;
1304             addToIconSet(pb, names.begin()->c_str(), lsize, psize);
1305         }
1306     }
1307
1308     if ( pb ) {
1309         // increase refcount since we're handing out ownership
1310         g_object_ref(G_OBJECT(pb));
1311     }
1312     return pb;
1313 }
1314
1315 void IconImpl::overlayPixels(guchar *px, int width, int height, int stride,
1316                             unsigned r, unsigned g, unsigned b)
1317 {
1318     int bytesPerPixel = 4;
1319     int spacing = 4;
1320     for ( int y = 0; y < height; y += spacing ) {
1321         guchar *ptr = px + y * stride;
1322         for ( int x = 0; x < width; x += spacing ) {
1323             *(ptr++) = r;
1324             *(ptr++) = g;
1325             *(ptr++) = b;
1326             *(ptr++) = 0xff;
1327
1328             ptr += bytesPerPixel * (spacing - 1);
1329         }
1330     }
1331
1332     if ( width > 1 && height > 1 ) {
1333         // point at the last pixel
1334         guchar *ptr = px + ((height-1) * stride) + ((width - 1) * bytesPerPixel);
1335
1336         if ( width > 2 ) {
1337             px[4] = r;
1338             px[5] = g;
1339             px[6] = b;
1340             px[7] = 0xff;
1341
1342             ptr[-12] = r;
1343             ptr[-11] = g;
1344             ptr[-10] = b;
1345             ptr[-9] = 0xff;
1346         }
1347
1348         ptr[-4] = r;
1349         ptr[-3] = g;
1350         ptr[-2] = b;
1351         ptr[-1] = 0xff;
1352
1353         px[0 + stride] = r;
1354         px[1 + stride] = g;
1355         px[2 + stride] = b;
1356         px[3 + stride] = 0xff;
1357
1358         ptr[0 - stride] = r;
1359         ptr[1 - stride] = g;
1360         ptr[2 - stride] = b;
1361         ptr[3 - stride] = 0xff;
1362
1363         if ( height > 2 ) {
1364             ptr[0 - stride * 3] = r;
1365             ptr[1 - stride * 3] = g;
1366             ptr[2 - stride * 3] = b;
1367             ptr[3 - stride * 3] = 0xff;
1368         }
1369     }
1370 }
1371
1372 class preRenderItem
1373 {
1374 public:
1375     preRenderItem( GtkIconSize lsize, gchar const *name ) :
1376         _lsize( lsize ),
1377         _name( name )
1378     {}
1379     GtkIconSize _lsize;
1380     Glib::ustring _name;
1381 };
1382
1383
1384 static std::vector<preRenderItem> pendingRenders;
1385 static bool callbackHooked = false;
1386
1387 void IconImpl::addPreRender( GtkIconSize lsize, gchar const *name )
1388 {
1389     if ( !callbackHooked )
1390     {
1391         callbackHooked = true;
1392         g_idle_add_full( G_PRIORITY_LOW, &prerenderTask, NULL, NULL );
1393     }
1394
1395     pendingRenders.push_back(preRenderItem(lsize, name));
1396 }
1397
1398 gboolean IconImpl::prerenderTask(gpointer /*data*/) {
1399     if ( inkscapeIsCrashing() ) {
1400         // stop
1401     } else if (!pendingRenders.empty()) {
1402         bool workDone = false;
1403         do {
1404             preRenderItem single = pendingRenders.front();
1405             pendingRenders.erase(pendingRenders.begin());
1406             int psize = getPhysSize(single._lsize);
1407             workDone = prerenderIcon(single._name.c_str(), single._lsize, psize);
1408         } while (!pendingRenders.empty() && !workDone);
1409     }
1410
1411     if (!inkscapeIsCrashing() && !pendingRenders.empty()) {
1412         return TRUE;
1413     } else {
1414         callbackHooked = false;
1415         return FALSE;
1416     }
1417 }
1418
1419
1420 void IconImpl::imageMapCB(GtkWidget* widget, gpointer user_data)
1421 {
1422     gchar* id = 0;
1423     GtkIconSize size = GTK_ICON_SIZE_INVALID;
1424     gtk_image_get_stock(GTK_IMAGE(widget), &id, &size);
1425     GtkIconSize lsize = static_cast<GtkIconSize>(GPOINTER_TO_INT(user_data));
1426     if ( id ) {
1427         int psize = getPhysSize(lsize);
1428         g_message("imageMapCB(%p) for [%s]:%d:%d", widget, id, lsize, psize);
1429         for ( std::vector<preRenderItem>::iterator it = pendingRenders.begin(); it != pendingRenders.end(); ++it ) {
1430             if ( (it->_name == id) && (it->_lsize == lsize) ) {
1431                 prerenderIcon(id, lsize, psize);
1432                 pendingRenders.erase(it);
1433                 g_message("    prerender for %s:%d:%d", id, lsize, psize);
1434                 if (lsize != size) {
1435                     int psize = getPhysSize(size);
1436                     prerenderIcon(id, size, psize);
1437                 }
1438                 break;
1439             }
1440         }
1441     }
1442
1443     g_signal_handlers_disconnect_by_func(widget, (gpointer)imageMapCB, user_data);
1444 }
1445
1446 void IconImpl::imageMapNamedCB(GtkWidget* widget, gpointer user_data)
1447 {
1448     GtkImage* img = GTK_IMAGE(widget);
1449     gchar const* iconName = 0;
1450     GtkIconSize size = GTK_ICON_SIZE_INVALID;
1451     gtk_image_get_icon_name(img, &iconName, &size);
1452     if ( iconName ) {
1453         GtkImageType type = gtk_image_get_storage_type( GTK_IMAGE(img) );
1454         if ( type == GTK_IMAGE_ICON_NAME ) {
1455
1456             gint iconSize = 0;
1457             gchar* iconName = 0;
1458             {
1459                 g_object_get(G_OBJECT(widget),
1460                              "icon-name", &iconName,
1461                              "icon-size", &iconSize,
1462                              NULL);
1463             }
1464
1465             for ( std::vector<preRenderItem>::iterator it = pendingRenders.begin(); it != pendingRenders.end(); ++it ) {
1466                 if ( (it->_name == iconName) && (it->_lsize == size) ) {
1467                     int psize = getPhysSize(size);
1468                     prerenderIcon(iconName, size, psize);
1469                     pendingRenders.erase(it);
1470                     break;
1471                 }
1472             }
1473
1474             gtk_image_set_from_icon_name(img, "", (GtkIconSize)iconSize);
1475             gtk_image_set_from_icon_name(img, iconName, (GtkIconSize)iconSize);
1476         } else {
1477             g_warning("UNEXPECTED TYPE of %d", (int)type);
1478         }
1479     }
1480
1481     g_signal_handlers_disconnect_by_func(widget, (gpointer)imageMapNamedCB, user_data);
1482 }
1483
1484
1485 /*
1486   Local Variables:
1487   mode:c++
1488   c-file-style:"stroustrup"
1489   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1490   indent-tabs-mode:nil
1491   fill-column:99
1492   End:
1493 */
1494 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :