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  *
   9  * Copyright (C) 2002 Lauris Kaplinski
  10  *
  11  * Released under GNU GPL, read the file 'COPYING' for more information
  12  */
  13
  14 #ifdef HAVE_CONFIG_H
  15 # include "config.h"
  16 #endif
  17
  18 #include <cstring>
  19 #include <glib/gmem.h>
  20 #include <gtk/gtk.h>
  21 #include <gtkmm.h>
  22
  23 #include "path-prefix.h"
  24 #include "preferences.h"
  25 #include "inkscape.h"
  26 #include "document.h"
  27 #include "sp-item.h"
  28 #include "display/nr-arena.h"
  29 #include "display/nr-arena-item.h"
  30 #include "io/sys.h"
  31
  32 #include "icon.h"
  33
  34 static void sp_icon_class_init(SPIconClass *klass);
  35 static void sp_icon_init(SPIcon *icon);
  36 static void sp_icon_dispose(GObject *object);
  37
  38 static void sp_icon_reset(SPIcon *icon);
  39 static void sp_icon_clear(SPIcon *icon);
  40
  41 static void sp_icon_size_request(GtkWidget *widget, GtkRequisition *requisition);
  42 static void sp_icon_size_allocate(GtkWidget *widget, GtkAllocation *allocation);
  43 static int sp_icon_expose(GtkWidget *widget, GdkEventExpose *event);
  44
  45 static void sp_icon_paint(SPIcon *icon, GdkRectangle const *area);
  46
  47 static void sp_icon_screen_changed( GtkWidget *widget, GdkScreen *previous_screen );
  48 static void sp_icon_style_set( GtkWidget *widget, GtkStyle *previous_style );
  49 static void sp_icon_theme_changed( SPIcon *icon );
  50
  51 static GdkPixbuf *sp_icon_image_load_pixmap(gchar const *name, unsigned lsize, unsigned psize);
  52 static GdkPixbuf *sp_icon_image_load_svg(gchar const *name, GtkIconSize lsize, unsigned psize);
  53
  54 static void sp_icon_overlay_pixels( guchar *px, int width, int height, int stride,
  55                                     unsigned r, unsigned g, unsigned b );
  56
  57 static void injectCustomSize();
  58
  59 static GtkWidgetClass *parent_class;
  60
  61 static bool sizeDirty = true;
  62
  63 static bool sizeMapDone = false;
  64 static GtkIconSize iconSizeLookup[] = {
  65     GTK_ICON_SIZE_INVALID,
  66     GTK_ICON_SIZE_MENU,
  67     GTK_ICON_SIZE_SMALL_TOOLBAR,
  68     GTK_ICON_SIZE_LARGE_TOOLBAR,
  69     GTK_ICON_SIZE_BUTTON,
  70     GTK_ICON_SIZE_DND,
  71     GTK_ICON_SIZE_DIALOG,
  72     GTK_ICON_SIZE_MENU, // for Inkscape::ICON_SIZE_DECORATION
  73 };
  74
  75 static std::map<Glib::ustring, Glib::ustring> legacyNames;
  76
  77 class IconCacheItem
  78 {
  79 public:
  80     IconCacheItem( GtkIconSize lsize, GdkPixbuf* pb ) :
  81         _lsize( lsize ),
  82         _pb( pb )
  83     {}
  84     GtkIconSize _lsize;
  85     GdkPixbuf* _pb;
  86 };
  87
  88 static Glib::RefPtr<Gtk::IconFactory> inkyIcons;
  89
  90 GType
  91 sp_icon_get_type()
  92 {
  93     //TODO: switch to GObject
  94     // GtkType and such calls were deprecated a while back with the
  95     // introduction of GObject as a separate layer, with GType instead. --JonCruz
  96
  97     static GType type = 0;
  98     if (!type) {
  99         GTypeInfo info = {
 100             sizeof(SPIconClass),
 101             NULL,
 102             NULL,
 103             (GClassInitFunc) sp_icon_class_init,
 104             NULL,
 105             NULL,
 106             sizeof(SPIcon),
 107             0,
 108             (GInstanceInitFunc) sp_icon_init,
 109             NULL
 110         };
 111         type = g_type_register_static(GTK_TYPE_WIDGET, "SPIcon", &info, (GTypeFlags)0);
 112     }
 113     return type;
 114 }
 115
 116 static void
 117 sp_icon_class_init(SPIconClass *klass)
 118 {
 119     GObjectClass *object_class;
 120     GtkWidgetClass *widget_class;
 121
 122     object_class = (GObjectClass *) klass;
 123     widget_class = (GtkWidgetClass *) klass;
 124
 125     parent_class = (GtkWidgetClass*)g_type_class_peek_parent(klass);
 126
 127     object_class->dispose = sp_icon_dispose;
 128
 129     widget_class->size_request = sp_icon_size_request;
 130     widget_class->size_allocate = sp_icon_size_allocate;
 131     widget_class->expose_event = sp_icon_expose;
 132     widget_class->screen_changed = sp_icon_screen_changed;
 133     widget_class->style_set = sp_icon_style_set;
 134 }
 135
 136
 137 static void
 138 sp_icon_init(SPIcon *icon)
 139 {
 140     GTK_WIDGET_FLAGS(icon) |= GTK_NO_WINDOW;
 141     icon->lsize = Inkscape::ICON_SIZE_BUTTON;
 142     icon->psize = 0;
 143     icon->name = 0;
 144     icon->pb = 0;
 145 }
 146
 147 static void
 148 sp_icon_dispose(GObject *object)
 149 {
 150     SPIcon *icon = SP_ICON(object);
 151     sp_icon_clear(icon);
 152     if ( icon->name ) {
 153         g_free( icon->name );
 154         icon->name = 0;
 155     }
 156
 157     ((GObjectClass *) (parent_class))->dispose(object);
 158 }
 159
 160 static void sp_icon_reset( SPIcon *icon ) {
 161     icon->psize = 0;
 162     sp_icon_clear(icon);
 163 }
 164
 165 static void sp_icon_clear( SPIcon *icon ) {
 166     if (icon->pb) {
 167         g_object_unref(G_OBJECT(icon->pb));
 168         icon->pb = NULL;
 169     }
 170 }
 171
 172 static void
 173 sp_icon_size_request(GtkWidget *widget, GtkRequisition *requisition)
 174 {
 175     SPIcon const *icon = SP_ICON(widget);
 176
 177     int const size = ( icon->psize
 178                        ? icon->psize
 179                        : sp_icon_get_phys_size(icon->lsize) );
 180     requisition->width = size;
 181     requisition->height = size;
 182 }
 183
 184 static void
 185 sp_icon_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
 186 {
 187     widget->allocation = *allocation;
 188
 189     if (GTK_WIDGET_DRAWABLE(widget)) {
 190         gtk_widget_queue_draw(widget);
 191     }
 192 }
 193
 194 static int sp_icon_expose(GtkWidget *widget, GdkEventExpose *event)
 195 {
 196     if ( GTK_WIDGET_DRAWABLE(widget) ) {
 197         SPIcon *icon = SP_ICON(widget);
 198         if ( !icon->pb ) {
 199             sp_icon_fetch_pixbuf( icon );
 200         }
 201
 202         sp_icon_paint(SP_ICON(widget), &event->area);
 203     }
 204
 205     return TRUE;
 206 }
 207
 208 static GdkPixbuf* renderup( gchar const* name, Inkscape::IconSize lsize, unsigned psize );
 209
 210 // PUBLIC CALL:
 211 void sp_icon_fetch_pixbuf( SPIcon *icon )
 212 {
 213     g_message("sp_icon_fetch_pixbuf(%p) [%s]", icon, icon->name);
 214     if ( icon ) {
 215         if ( !icon->pb ) {
 216             icon->psize = sp_icon_get_phys_size(icon->lsize);
 217             icon->pb = renderup(icon->name, icon->lsize, icon->psize);
 218         }
 219     }
 220 }
 221
 222 static GdkPixbuf* renderup( gchar const* name, Inkscape::IconSize lsize, unsigned psize ) {
 223     GtkIconTheme *theme = gtk_icon_theme_get_default();
 224
 225     GdkPixbuf *pb = 0;
 226     if (gtk_icon_theme_has_icon(theme, name)) {
 227         pb = gtk_icon_theme_load_icon(theme, name, psize, (GtkIconLookupFlags) 0, NULL);
 228     }
 229     if (!pb) {
 230         pb = sp_icon_image_load_svg( name, Inkscape::getRegisteredIconSize(lsize), psize );
 231         if (!pb && (legacyNames.find(name) != legacyNames.end())) {
 232             if ( Inkscape::Preferences::get()->getBool("/debug/icons/dumpSvg") ) {
 233                 g_message("Checking fallback [%s]->[%s]", name, legacyNames[name].c_str());
 234             }
 235             pb = sp_icon_image_load_svg( legacyNames[name].c_str(), Inkscape::getRegisteredIconSize(lsize), psize );
 236         }
 237
 238         // if this was loaded from SVG, add it as a builtin icon
 239         if (pb) {
 240             gtk_icon_theme_add_builtin_icon(name, psize, pb);
 241         }
 242     }
 243     if (!pb) {
 244         pb = sp_icon_image_load_pixmap( name, lsize, psize );
 245     }
 246     if ( !pb ) {
 247         // TODO: We should do something more useful if we can't load the image.
 248         g_warning ("failed to load icon '%s'", name);
 249     }
 250     return pb;
 251 }
 252
 253 static void sp_icon_screen_changed( GtkWidget *widget, GdkScreen *previous_screen )
 254 {
 255     if ( GTK_WIDGET_CLASS( parent_class )->screen_changed ) {
 256         GTK_WIDGET_CLASS( parent_class )->screen_changed( widget, previous_screen );
 257     }
 258     SPIcon *icon = SP_ICON(widget);
 259     sp_icon_theme_changed(icon);
 260 }
 261
 262 static void sp_icon_style_set( GtkWidget *widget, GtkStyle *previous_style )
 263 {
 264     if ( GTK_WIDGET_CLASS( parent_class )->style_set ) {
 265         GTK_WIDGET_CLASS( parent_class )->style_set( widget, previous_style );
 266     }
 267     SPIcon *icon = SP_ICON(widget);
 268     sp_icon_theme_changed(icon);
 269 }
 270
 271 static void sp_icon_theme_changed( SPIcon *icon )
 272 {
 273     //g_message("Got a change bump for this icon");
 274     sizeDirty = true;
 275     sp_icon_reset(icon);
 276     gtk_widget_queue_draw( GTK_WIDGET(icon) );
 277 }
 278
 279
 280 static Glib::ustring icon_cache_key(gchar const *name, unsigned lsize, unsigned psize);
 281 static GdkPixbuf *get_cached_pixbuf(Glib::ustring const &key);
 282
 283 static void setupLegacyNaming() {
 284     legacyNames["document-import"] ="file_import";
 285     legacyNames["document-export"] ="file_export";
 286     legacyNames["document-import-ocal"] ="ocal_import";
 287     legacyNames["document-export-ocal"] ="ocal_export";
 288     legacyNames["document-metadata"] ="document_metadata";
 289     legacyNames["dialog-input-devices"] ="input_devices";
 290     legacyNames["edit-duplicate"] ="edit_duplicate";
 291     legacyNames["edit-clone"] ="edit_clone";
 292     legacyNames["edit-clone-unlink"] ="edit_unlink_clone";
 293     legacyNames["edit-select-original"] ="edit_select_original";
 294     legacyNames["edit-undo-history"] ="edit_undo_history";
 295     legacyNames["edit-paste-in-place"] ="selection_paste_in_place";
 296     legacyNames["edit-paste-style"] ="selection_paste_style";
 297     legacyNames["selection-make-bitmap-copy"] ="selection_bitmap";
 298     legacyNames["edit-select-all"] ="selection_select_all";
 299     legacyNames["edit-select-all-layers"] ="selection_select_all_in_all_layers";
 300     legacyNames["edit-select-invert"] ="selection_invert";
 301     legacyNames["edit-select-none"] ="selection_deselect";
 302     legacyNames["dialog-xml-editor"] ="xml_editor";
 303     legacyNames["zoom-original"] ="zoom_1_to_1";
 304     legacyNames["zoom-half-size"] ="zoom_1_to_2";
 305     legacyNames["zoom-double-size"] ="zoom_2_to_1";
 306     legacyNames["zoom-fit-selection"] ="zoom_select";
 307     legacyNames["zoom-fit-drawing"] ="zoom_draw";
 308     legacyNames["zoom-fit-page"] ="zoom_page";
 309     legacyNames["zoom-fit-width"] ="zoom_pagewidth";
 310     legacyNames["zoom-previous"] ="zoom_previous";
 311     legacyNames["zoom-next"] ="zoom_next";
 312     legacyNames["zoom-in"] ="zoom_in";
 313     legacyNames["zoom-out"] ="zoom_out";
 314     legacyNames["show-grid"] ="grid";
 315     legacyNames["show-guides"] ="guides";
 316     legacyNames["color-management"] ="color_management";
 317     legacyNames["show-dialogs"] ="dialog_toggle";
 318     legacyNames["dialog-messages"] ="messages";
 319     legacyNames["dialog-scripts"] ="scripts";
 320     legacyNames["window-previous"] ="window_previous";
 321     legacyNames["window-next"] ="window_next";
 322     legacyNames["dialog-icon-preview"] ="view_icon_preview";
 323     legacyNames["window-new"] ="view_new";
 324     legacyNames["view-fullscreen"] ="fullscreen";
 325     legacyNames["layer-new"] ="new_layer";
 326     legacyNames["layer-rename"] ="rename_layer";
 327     legacyNames["layer-previous"] ="switch_to_layer_above";
 328     legacyNames["layer-next"] ="switch_to_layer_below";
 329     legacyNames["selection-move-to-layer-above"] ="move_selection_above";
 330     legacyNames["selection-move-to-layer-below"] ="move_selection_below";
 331     legacyNames["layer-raise"] ="raise_layer";
 332     legacyNames["layer-lower"] ="lower_layer";
 333     legacyNames["layer-top"] ="layer_to_top";
 334     legacyNames["layer-bottom"] ="layer_to_bottom";
 335     legacyNames["layer-delete"] ="delete_layer";
 336     legacyNames["dialog-layers"] ="layers";
 337     legacyNames["dialog-fill-and-stroke"] ="fill_and_stroke";
 338     legacyNames["dialog-object-properties"] ="dialog_item_properties";
 339     legacyNames["object-group"] ="selection_group";
 340     legacyNames["object-ungroup"] ="selection_ungroup";
 341     legacyNames["selection-raise"] ="selection_up";
 342     legacyNames["selection-lower"] ="selection_down";
 343     legacyNames["selection-top"] ="selection_top";
 344     legacyNames["selection-bottom"] ="selection_bot";
 345     legacyNames["object-rotate-left"] ="object_rotate_90_CCW";
 346     legacyNames["object-rotate-right"] ="object_rotate_90_CW";
 347     legacyNames["object-flip-horizontal"] ="object_flip_hor";
 348     legacyNames["object-flip-vertical"] ="object_flip_ver";
 349     legacyNames["dialog-transform"] ="object_trans";
 350     legacyNames["dialog-align-and-distribute"] ="object_align";
 351     legacyNames["dialog-rows-and-columns"] ="grid_arrange";
 352     legacyNames["object-to-path"] ="object_tocurve";
 353     legacyNames["stroke-to-path"] ="stroke_tocurve";
 354     legacyNames["bitmap-trace"] ="selection_trace";
 355     legacyNames["path-union"] ="union";
 356     legacyNames["path-difference"] ="difference";
 357     legacyNames["path-intersection"] ="intersection";
 358     legacyNames["path-exclusion"] ="exclusion";
 359     legacyNames["path-division"] ="division";
 360     legacyNames["path-cut"] ="cut_path";
 361     legacyNames["path-combine"] ="selection_combine";
 362     legacyNames["path-break-apart"] ="selection_break";
 363     legacyNames["path-outset"] ="outset_path";
 364     legacyNames["path-inset"] ="inset_path";
 365     legacyNames["path-offset-dynamic"] ="dynamic_offset";
 366     legacyNames["path-offset-linked"] ="linked_offset";
 367     legacyNames["path-simplify"] ="simplify";
 368     legacyNames["path-reverse"] ="selection_reverse";
 369     legacyNames["dialog-text-and-font"] ="object_font";
 370     legacyNames["text-put-on-path"] ="put_on_path";
 371     legacyNames["text-remove-from-path"] ="remove_from_path";
 372     legacyNames["text-flow-into-frame"] ="flow_into_frame";
 373     legacyNames["text-unflow"] ="unflow";
 374     legacyNames["text-convert-to-regular"] ="convert_to_text";
 375     legacyNames["text-unkern"] ="remove_manual_kerns";
 376     legacyNames["help-keyboard-shortcuts"] ="help_keys";
 377     legacyNames["help-contents"] ="help_tutorials";
 378     legacyNames["inkscape"] ="inkscape_options";
 379     legacyNames["dialog-memory"] ="about_memory";
 380     legacyNames["tool-pointer"] ="draw_select";
 381     legacyNames["tool-node-editor"] ="draw_node";
 382     legacyNames["tool-tweak"] ="draw_tweak";
 383     legacyNames["zoom"] ="draw_zoom";
 384     legacyNames["draw-rectangle"] ="draw_rect";
 385     legacyNames["draw-cuboid"] ="draw_3dbox";
 386     legacyNames["draw-ellipse"] ="draw_arc";
 387     legacyNames["draw-polygon-star"] ="draw_star";
 388     legacyNames["draw-spiral"] ="draw_spiral";
 389     legacyNames["draw-freehand"] ="draw_freehand";
 390     legacyNames["draw-path"] ="draw_pen";
 391     legacyNames["draw-calligraphic"] ="draw_calligraphic";
 392     legacyNames["draw-eraser"] ="draw_erase";
 393     legacyNames["color-fill"] ="draw_paintbucket";
 394     legacyNames["draw-text"] ="draw_text";
 395     legacyNames["draw-connector"] ="draw_connector";
 396     legacyNames["color-gradient"] ="draw_gradient";
 397     legacyNames["color-picker"] ="draw_dropper";
 398     legacyNames["transform-affect-stroke"] ="transform_stroke";
 399     legacyNames["transform-affect-rounded-corners"] ="transform_corners";
 400     legacyNames["transform-affect-gradient"] ="transform_gradient";
 401     legacyNames["transform-affect-pattern"] ="transform_pattern";
 402     legacyNames["node-add"] ="node_insert";
 403     legacyNames["node-delete"] ="node_delete";
 404     legacyNames["node-join"] ="node_join";
 405     legacyNames["node-break"] ="node_break";
 406     legacyNames["node-join-segment"] ="node_join_segment";
 407     legacyNames["node-delete-segment"] ="node_delete_segment";
 408     legacyNames["node-type-cusp"] ="node_cusp";
 409     legacyNames["node-type-smooth"] ="node_smooth";
 410     legacyNames["node-type-symmetric"] ="node_symmetric";
 411     legacyNames["node-type-auto-smooth"] ="node_auto";
 412     legacyNames["node-segment-curve"] ="node_curve";
 413     legacyNames["node-segment-line"] ="node_line";
 414     legacyNames["show-node-handles"] ="nodes_show_handles";
 415     legacyNames["path-effect-parameter-next"] ="edit_next_parameter";
 416     legacyNames["show-path-outline"] ="nodes_show_helperpath";
 417     legacyNames["path-clip-edit"] ="nodeedit-clippath";
 418     legacyNames["path-mask-edit"] ="nodeedit-mask";
 419     legacyNames["node-type-cusp"] ="node_cusp";
 420     legacyNames["object-tweak-push"] ="tweak_move_mode";
 421     legacyNames["object-tweak-attract"] ="tweak_move_mode_inout";
 422     legacyNames["object-tweak-randomize"] ="tweak_move_mode_jitter";
 423     legacyNames["object-tweak-shrink"] ="tweak_scale_mode";
 424     legacyNames["object-tweak-rotate"] ="tweak_rotate_mode";
 425     legacyNames["object-tweak-duplicate"] ="tweak_moreless_mode";
 426     legacyNames["object-tweak-push"] ="tweak_move_mode";
 427     legacyNames["path-tweak-push"] ="tweak_push_mode";
 428     legacyNames["path-tweak-shrink"] ="tweak_shrink_mode";
 429     legacyNames["path-tweak-attract"] ="tweak_attract_mode";
 430     legacyNames["path-tweak-roughen"] ="tweak_roughen_mode";
 431     legacyNames["object-tweak-paint"] ="tweak_colorpaint_mode";
 432     legacyNames["object-tweak-jitter-color"] ="tweak_colorjitter_mode";
 433     legacyNames["object-tweak-blur"] ="tweak_blur_mode";
 434     legacyNames["rectangle-make-corners-sharp"] ="squared_corner";
 435     legacyNames["perspective-parallel"] ="toggle_vp_x";
 436     legacyNames["draw-ellipse-whole"] ="reset_circle";
 437     legacyNames["draw-ellipse-segment"] ="circle_closed_arc";
 438     legacyNames["draw-ellipse-arc"] ="circle_open_arc";
 439     legacyNames["draw-polygon"] ="star_flat";
 440     legacyNames["draw-star"] ="star_angled";
 441     legacyNames["path-mode-bezier"] ="bezier_mode";
 442     legacyNames["path-mode-spiro"] ="spiro_splines_mode";
 443     legacyNames["path-mode-polyline"] ="polylines_mode";
 444     legacyNames["path-mode-polyline-paraxial"] ="paraxial_lines_mode";
 445     legacyNames["draw-use-tilt"] ="guse_tilt";
 446     legacyNames["draw-use-pressure"] ="guse_pressure";
 447     legacyNames["draw-trace-background"] ="trace_background";
 448     legacyNames["draw-eraser-delete-objects"] ="delete_object";
 449     legacyNames["format-text-direction-vertical"] ="writing_mode_tb";
 450     legacyNames["format-text-direction-horizontal"] ="writing_mode_lr";
 451     legacyNames["connector-avoid"] ="connector_avoid";
 452     legacyNames["connector-ignore"] ="connector_ignore";
 453     legacyNames["object-fill"] ="controls_fill";
 454     legacyNames["object-stroke"] ="controls_stroke";
 455     legacyNames["snap"] ="toggle_snap_global";
 456     legacyNames["snap-bounding-box"] ="toggle_snap_bbox";
 457     legacyNames["snap-bounding-box-edges"] ="toggle_snap_to_bbox_path";
 458     legacyNames["snap-bounding-box-corners"] ="toggle_snap_to_bbox_node";
 459     legacyNames["snap-bounding-box-midpoints"] ="toggle_snap_to_bbox_edge_midpoints";
 460     legacyNames["snap-bounding-box-center"] ="toggle_snap_to_bbox_midpoints";
 461     legacyNames["snap-nodes"] ="toggle_snap_nodes";
 462     legacyNames["snap-nodes-path"] ="toggle_snap_to_paths";
 463     legacyNames["snap-nodes-cusp"] ="toggle_snap_to_nodes";
 464     legacyNames["snap-nodes-smooth"] ="toggle_snap_to_smooth_nodes";
 465     legacyNames["snap-nodes-midpoint"] ="toggle_snap_to_midpoints";
 466     legacyNames["snap-nodes-intersection"] ="toggle_snap_to_path_intersections";
 467     legacyNames["snap-nodes-center"] ="toggle_snap_to_bbox_midpoints-3";
 468     legacyNames["snap-nodes-rotation-center"] ="toggle_snap_center";
 469     legacyNames["snap-page"] ="toggle_snap_page_border";
 470     legacyNames["snap-grid-guide-intersections"] ="toggle_snap_grid_guide_intersections";
 471     legacyNames["align-horizontal-right-to-anchor"] ="al_left_out";
 472     legacyNames["align-horizontal-left"] ="al_left_in";
 473     legacyNames["align-horizontal-center"] ="al_center_hor";
 474     legacyNames["align-horizontal-right"] ="al_right_in";
 475     legacyNames["align-horizontal-left-to-anchor"] ="al_right_out";
 476     legacyNames["align-horizontal-baseline"] ="al_baselines_vert";
 477     legacyNames["align-vertical-bottom-to-anchor"] ="al_top_out";
 478     legacyNames["align-vertical-top"] ="al_top_in";
 479     legacyNames["align-vertical-center"] ="al_center_ver";
 480     legacyNames["align-vertical-bottom"] ="al_bottom_in";
 481     legacyNames["align-vertical-top-to-anchor"] ="al_bottom_out";
 482     legacyNames["align-vertical-baseline"] ="al_baselines_hor";
 483     legacyNames["distribute-horizontal-left"] ="distribute_left";
 484     legacyNames["distribute-horizontal-center"] ="distribute_hcentre";
 485     legacyNames["distribute-horizontal-right"] ="distribute_right";
 486     legacyNames["distribute-horizontal-baseline"] ="distribute_baselines_hor";
 487     legacyNames["distribute-vertical-bottom"] ="distribute_bottom";
 488     legacyNames["distribute-vertical-center"] ="distribute_vcentre";
 489     legacyNames["distribute-vertical-top"] ="distribute_top";
 490     legacyNames["distribute-vertical-baseline"] ="distribute_baselines_vert";
 491     legacyNames["distribute-randomize"] ="distribute_randomize";
 492     legacyNames["distribute-unclump"] ="unclump";
 493     legacyNames["distribute-graph"] ="graph_layout";
 494     legacyNames["distribute-graph-directed"] ="directed_graph";
 495     legacyNames["distribute-remove-overlaps"] ="remove_overlaps";
 496     legacyNames["align-horizontal-node"] ="node_valign";
 497     legacyNames["align-vertical-node"] ="node_halign";
 498     legacyNames["distribute-vertical-node"] ="node_vdistribute";
 499     legacyNames["distribute-horizontal-node"] ="node_hdistribute";
 500     legacyNames["xml-element-new"] ="add_xml_element_node";
 501     legacyNames["xml-text-new"] ="add_xml_text_node";
 502     legacyNames["xml-node-delete"] ="delete_xml_node";
 503     legacyNames["xml-node-duplicate"] ="duplicate_xml_node";
 504     legacyNames["xml-attribute-delete"] ="delete_xml_attribute";
 505     legacyNames["transform-move-horizontal"] ="arrows_hor";
 506     legacyNames["transform-move-vertical"] ="arrows_ver";
 507     legacyNames["transform-scale-horizontal"] ="transform_scale_hor";
 508     legacyNames["transform-scale-vertical"] ="transform_scale_ver";
 509     legacyNames["transform-skew-horizontal"] ="transform_scew_hor";
 510     legacyNames["transform-skew-vertical"] ="transform_scew_ver";
 511     legacyNames["object-fill"] ="properties_fill";
 512     legacyNames["object-stroke"] ="properties_stroke_paint";
 513     legacyNames["object-stroke-style"] ="properties_stroke";
 514     legacyNames["paint-none"] ="fill_none";
 515     legacyNames["paint-solid"] ="fill_solid";
 516     legacyNames["paint-gradient-linear"] ="fill_gradient";
 517     legacyNames["paint-gradient-radial"] ="fill_radial";
 518     legacyNames["paint-pattern"] ="fill_pattern";
 519     legacyNames["paint-unknown"] ="fill_unset";
 520     legacyNames["fill-rule-even-odd"] ="fillrule_evenodd";
 521     legacyNames["fill-rule-nonzero"] ="fillrule_nonzero";
 522     legacyNames["stroke-join-miter"] ="join_miter";
 523     legacyNames["stroke-join-bevel"] ="join_bevel";
 524     legacyNames["stroke-join-round"] ="join_round";
 525     legacyNames["stroke-cap-butt"] ="cap_butt";
 526     legacyNames["stroke-cap-square"] ="cap_square";
 527     legacyNames["stroke-cap-round"] ="cap_round";
 528     legacyNames["guides"] ="guide";
 529     legacyNames["grid-rectangular"] ="grid_xy";
 530     legacyNames["grid-axonometric"] ="grid_axonom";
 531     legacyNames["object-visible"] ="visible";
 532     legacyNames["object-hidden"] ="hidden";
 533     legacyNames["object-unlocked"] ="lock_unlocked";
 534     legacyNames["object-locked"] ="width_height_lock";
 535     legacyNames["zoom"] ="sticky_zoom";
 536 }
 537
 538 static GtkWidget *
 539 sp_icon_new_full( Inkscape::IconSize lsize, gchar const *name )
 540 {
 541     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 542     static bool dump = prefs->getBool( "/debug/icons/dumpGtk");
 543
 544     GtkWidget *widget = 0;
 545     gint trySize = CLAMP( static_cast<gint>(lsize), 0, static_cast<gint>(G_N_ELEMENTS(iconSizeLookup) - 1) );
 546     if ( !sizeMapDone ) {
 547         injectCustomSize();
 548     }
 549     GtkIconSize mappedSize = iconSizeLookup[trySize];
 550
 551     GtkStockItem stock;
 552     gboolean stockFound = gtk_stock_lookup( name, &stock );
 553
 554     GtkWidget *img = 0;
 555     if ( legacyNames.empty() ) {
 556         setupLegacyNaming();
 557     }
 558
 559     if ( stockFound ) {
 560         img = gtk_image_new_from_stock( name, mappedSize );
 561     } else {
 562         img = gtk_image_new_from_icon_name( name, mappedSize );
 563         if ( dump ) {
 564             g_message("gtk_image_new_from_icon_name( '%s', %d ) = %p", name, mappedSize, img);
 565             GtkImageType thing = gtk_image_get_storage_type(GTK_IMAGE(img));
 566             g_message("      Type is %d  %s", (int)thing, (thing == GTK_IMAGE_EMPTY ? "Empty" : "ok"));
 567         }
 568     }
 569
 570     if ( img ) {
 571         GtkImageType type = gtk_image_get_storage_type( GTK_IMAGE(img) );
 572         if ( type == GTK_IMAGE_STOCK ) {
 573             if ( !stockFound ) {
 574                 // It's not showing as a stock ID, so assume it will be present internally
 575                 // TODO restore: populate_placeholder_icon( name, mappedSize );
 576                 // TODO restore: addPreRender( mappedSize, name );
 577
 578                 // Add a hook to render if set visible before prerender is done.
 579                 // TODO restore g_signal_connect( G_OBJECT(img), "map", G_CALLBACK(imageMapCB), GINT_TO_POINTER(static_cast<int>(mappedSize)) );
 580                 if ( dump ) {
 581                     g_message("      connecting %p for imageMapCB for [%s] %d", img, name, (int)mappedSize);
 582                 }
 583             }
 584             widget = GTK_WIDGET(img);
 585             img = 0;
 586             if ( dump ) {
 587                 g_message( "loaded gtk  '%s' %d  (GTK_IMAGE_STOCK) %s  on %p", name, mappedSize, (stockFound ? "STOCK" : "local"), widget );
 588             }
 589         } else if ( type == GTK_IMAGE_ICON_NAME ) {
 590             widget = GTK_WIDGET(img);
 591             img = 0;
 592
 593             if (!gtk_icon_theme_has_icon(gtk_icon_theme_get_default(), name)) {
 594                 // TODO temporary work-around. until background rendering is restored.
 595                 int psize = sp_icon_get_phys_size(lsize);
 596                 renderup(name, lsize, psize);
 597             }
 598
 599             // Add a hook to render if set visible before prerender is done.
 600             // TODO restore g_signal_connect( G_OBJECT(widget), "map", G_CALLBACK(imageMapNamedCB), GINT_TO_POINTER(0) );
 601
 602             if ( prefs->getBool("/options/iconrender/named_nodelay") ) {
 603                 // TODO restore int psize = sp_icon_get_phys_size(lsize);
 604                 // TODO restore prerender_icon(name, mappedSize, psize);
 605             } else {
 606                 // TODO restore addPreRender( mappedSize, name );
 607             }
 608         } else {
 609             if ( dump ) {
 610                 g_message( "skipped gtk '%s' %d  (not GTK_IMAGE_STOCK)", name, lsize );
 611             }
 612             //g_object_unref( (GObject *)img );
 613             img = 0;
 614         }
 615     }
 616
 617     if ( !widget ) {
 618         //g_message("Creating an SPIcon instance for %s:%d", name, (int)lsize);
 619         SPIcon *icon = (SPIcon *)g_object_new(SP_TYPE_ICON, NULL);
 620         icon->lsize = lsize;
 621         icon->name = g_strdup(name);
 622         icon->psize = sp_icon_get_phys_size(lsize);
 623
 624         widget = GTK_WIDGET(icon);
 625     }
 626
 627     return widget;
 628 }
 629
 630 GtkWidget *
 631 sp_icon_new( Inkscape::IconSize lsize, gchar const *name )
 632 {
 633     return sp_icon_new_full( lsize, name );
 634 }
 635
 636 // PUBLIC CALL:
 637 Gtk::Widget *sp_icon_get_icon( Glib::ustring const &oid, Inkscape::IconSize size )
 638 {
 639     Gtk::Widget *result = 0;
 640     GtkWidget *widget = sp_icon_new_full( static_cast<Inkscape::IconSize>(Inkscape::getRegisteredIconSize(size)), oid.c_str() );
 641
 642     if ( widget ) {
 643         if ( GTK_IS_IMAGE(widget) ) {
 644             GtkImage *img = GTK_IMAGE(widget);
 645             result = Glib::wrap( img );
 646         } else {
 647             result = Glib::wrap( widget );
 648         }
 649     }
 650
 651     return result;
 652 }
 653
 654 GtkIconSize
 655 sp_icon_get_gtk_size(int size)
 656 {
 657     static GtkIconSize sizemap[64] = {(GtkIconSize)0};
 658     size = CLAMP(size, 4, 63);
 659     if (!sizemap[size]) {
 660         static int count = 0;
 661         char c[64];
 662         g_snprintf(c, 64, "InkscapeIcon%d", count++);
 663         sizemap[size] = gtk_icon_size_register(c, size, size);
 664     }
 665     return sizemap[size];
 666 }
 667
 668
 669 static void injectCustomSize()
 670 {
 671     // TODO - still need to handle the case of theme changes and resize, especially as we can't re-register a string.
 672     if ( !sizeMapDone )
 673     {
 674         Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 675         bool dump = prefs->getBool( "/debug/icons/dumpDefault");
 676         gint width = 0;
 677         gint height = 0;
 678         if ( gtk_icon_size_lookup(GTK_ICON_SIZE_MENU, &width, &height ) ) {
 679             gint newWidth = ((width * 3) / 4);
 680             gint newHeight = ((height * 3) / 4);
 681             GtkIconSize newSizeEnum = gtk_icon_size_register( "inkscape-decoration", newWidth, newHeight );
 682             if ( newSizeEnum ) {
 683                 if ( dump ) {
 684                     g_message("Registered (%d, %d) <= (%d, %d) as index %d", newWidth, newHeight, width, height, newSizeEnum);
 685                 }
 686                 guint index = static_cast<guint>(Inkscape::ICON_SIZE_DECORATION);
 687                 if ( index < G_N_ELEMENTS(iconSizeLookup) ) {
 688                     iconSizeLookup[index] = newSizeEnum;
 689                 } else if ( dump ) {
 690                     g_message("size lookup array too small to store entry");
 691                 }
 692             }
 693         }
 694         sizeMapDone = true;
 695     }
 696
 697     static bool hit = false;
 698     if ( !hit ) {
 699         hit = true;
 700         inkyIcons = Gtk::IconFactory::create();
 701         inkyIcons->add_default();
 702     }
 703 }
 704
 705 GtkIconSize Inkscape::getRegisteredIconSize( Inkscape::IconSize size )
 706 {
 707     GtkIconSize other = GTK_ICON_SIZE_MENU;
 708     injectCustomSize();
 709     size = CLAMP( size, Inkscape::ICON_SIZE_MENU, Inkscape::ICON_SIZE_DECORATION );
 710     if ( size == Inkscape::ICON_SIZE_DECORATION ) {
 711         other = gtk_icon_size_from_name("inkscape-decoration");
 712     } else {
 713         other = static_cast<GtkIconSize>(size);
 714     }
 715
 716     return other;
 717 }
 718
 719
 720 // PUBLIC CALL:
 721 int sp_icon_get_phys_size(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, GTK_ICON_SIZE_MENU, 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         Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 761         bool dump = prefs->getBool("/debug/icons/dumpDefault");
 762
 763         if ( dump ) {
 764             g_message( "Default icon sizes:" );
 765         }
 766         memset( vals, 0, sizeof(vals) );
 767         memset( lastSys, 0, sizeof(lastSys) );
 768         GtkIconSize const gtkSizes[] = {
 769             GTK_ICON_SIZE_MENU,
 770             GTK_ICON_SIZE_SMALL_TOOLBAR,
 771             GTK_ICON_SIZE_LARGE_TOOLBAR,
 772             GTK_ICON_SIZE_BUTTON,
 773             GTK_ICON_SIZE_DND,
 774             GTK_ICON_SIZE_DIALOG,
 775             static_cast<guint>(Inkscape::ICON_SIZE_DECORATION) < G_N_ELEMENTS(iconSizeLookup) ?
 776                 iconSizeLookup[static_cast<int>(Inkscape::ICON_SIZE_DECORATION)] :
 777                 GTK_ICON_SIZE_MENU
 778         };
 779         gchar const *const names[] = {
 780             "GTK_ICON_SIZE_MENU",
 781             "GTK_ICON_SIZE_SMALL_TOOLBAR",
 782             "GTK_ICON_SIZE_LARGE_TOOLBAR",
 783             "GTK_ICON_SIZE_BUTTON",
 784             "GTK_ICON_SIZE_DND",
 785             "GTK_ICON_SIZE_DIALOG",
 786             "inkscape-decoration"
 787         };
 788
 789         GtkWidget *icon = (GtkWidget *)g_object_new(SP_TYPE_ICON, NULL);
 790
 791         for (unsigned i = 0; i < G_N_ELEMENTS(gtkSizes); ++i) {
 792             guint const val_ix = (gtkSizes[i] <= GTK_ICON_SIZE_DIALOG) ? (guint)gtkSizes[i] : (guint)Inkscape::ICON_SIZE_DECORATION;
 793
 794             g_assert( val_ix < G_N_ELEMENTS(vals) );
 795
 796             gint width = 0;
 797             gint height = 0;
 798             bool used = false;
 799             if ( gtk_icon_size_lookup(gtkSizes[i], &width, &height ) ) {
 800                 vals[val_ix] = std::max(width, height);
 801                 lastSys[val_ix] = vals[val_ix];
 802                 used = true;
 803             }
 804             if (dump) {
 805                 g_message(" =--  %u  size:%d  %c(%d, %d)   '%s'",
 806                           i, gtkSizes[i],
 807                           ( used ? ' ' : 'X' ), width, height, names[i]);
 808             }
 809             gchar const *id = GTK_STOCK_OPEN;
 810             GdkPixbuf *pb = gtk_widget_render_icon( icon, id, gtkSizes[i], NULL);
 811             if (pb) {
 812                 width = gdk_pixbuf_get_width(pb);
 813                 height = gdk_pixbuf_get_height(pb);
 814                 int newSize = std::max( width, height );
 815                 // TODO perhaps check a few more stock icons to get a range on sizes.
 816                 if ( newSize > 0 ) {
 817                     vals[val_ix] = newSize;
 818                 }
 819                 if (dump) {
 820                     g_message("      %u  size:%d   (%d, %d)", i, gtkSizes[i], width, height);
 821                 }
 822
 823                 g_object_unref(G_OBJECT(pb));
 824             }
 825         }
 826         //g_object_unref(icon);
 827         init = true;
 828     }
 829
 830     // Fixup workaround
 831     if ((size == GTK_ICON_SIZE_MENU) || (size == GTK_ICON_SIZE_SMALL_TOOLBAR) || (size == GTK_ICON_SIZE_LARGE_TOOLBAR)) {
 832         gint width = 0;
 833         gint height = 0;
 834         if ( gtk_icon_size_lookup( static_cast<GtkIconSize>(size), &width, &height ) ) {
 835             vals[size] = std::max( width, height );
 836         }
 837     }
 838
 839     return vals[size];
 840 }
 841
 842 static void sp_icon_paint(SPIcon *icon, GdkRectangle const */*area*/)
 843 {
 844     GtkWidget &widget = *GTK_WIDGET(icon);
 845     GdkPixbuf *image = icon->pb;
 846     bool unref_image = false;
 847
 848     /* copied from the expose function of GtkImage */
 849     if (GTK_WIDGET_STATE (icon) != GTK_STATE_NORMAL && image) {
 850         GtkIconSource *source = gtk_icon_source_new();
 851         gtk_icon_source_set_pixbuf(source, icon->pb);
 852         gtk_icon_source_set_size(source, GTK_ICON_SIZE_SMALL_TOOLBAR); // note: this is boilerplate and not used
 853         gtk_icon_source_set_size_wildcarded(source, FALSE);
 854         image = gtk_style_render_icon (widget.style, source, gtk_widget_get_direction(&widget),
 855             (GtkStateType) GTK_WIDGET_STATE(&widget), (GtkIconSize)-1, &widget, "gtk-image");
 856         gtk_icon_source_free(source);
 857         unref_image = true;
 858     }
 859
 860     if (image) {
 861         int x = floor(widget.allocation.x + ((widget.allocation.width - widget.requisition.width) * 0.5));
 862         int y = floor(widget.allocation.y + ((widget.allocation.height - widget.requisition.height) * 0.5));
 863         int width = gdk_pixbuf_get_width(image);
 864         int height = gdk_pixbuf_get_height(image);
 865         // Limit drawing to when we actually have something. Avoids some crashes.
 866         if ( (width > 0) && (height > 0) ) {
 867             gdk_draw_pixbuf(GDK_DRAWABLE(widget.window), widget.style->black_gc, image,
 868                             0, 0, x, y, width, height,
 869                             GDK_RGB_DITHER_NORMAL, x, y);
 870         }
 871     }
 872
 873     if (unref_image) {
 874         g_object_unref(G_OBJECT(image));
 875     }
 876 }
 877
 878 GdkPixbuf *sp_icon_image_load_pixmap(gchar const *name, unsigned /*lsize*/, unsigned psize)
 879 {
 880     gchar *path = (gchar *) g_strdup_printf("%s/%s.png", INKSCAPE_PIXMAPDIR, name);
 881     // TODO: bulia, please look over
 882     gsize bytesRead = 0;
 883     gsize bytesWritten = 0;
 884     GError *error = NULL;
 885     gchar *localFilename = g_filename_from_utf8( path,
 886                                                  -1,
 887                                                  &bytesRead,
 888                                                  &bytesWritten,
 889                                                  &error);
 890     GdkPixbuf *pb = gdk_pixbuf_new_from_file(localFilename, NULL);
 891     g_free(localFilename);
 892     g_free(path);
 893     if (!pb) {
 894         path = (gchar *) g_strdup_printf("%s/%s.xpm", INKSCAPE_PIXMAPDIR, name);
 895         // TODO: bulia, please look over
 896         gsize bytesRead = 0;
 897         gsize bytesWritten = 0;
 898         GError *error = NULL;
 899         gchar *localFilename = g_filename_from_utf8( path,
 900                                                      -1,
 901                                                      &bytesRead,
 902                                                      &bytesWritten,
 903                                                      &error);
 904         pb = gdk_pixbuf_new_from_file(localFilename, NULL);
 905         g_free(localFilename);
 906         g_free(path);
 907     }
 908
 909     if (pb) {
 910         if (!gdk_pixbuf_get_has_alpha(pb)) {
 911             gdk_pixbuf_add_alpha(pb, FALSE, 0, 0, 0);
 912         }
 913
 914         if ( ( static_cast<unsigned>(gdk_pixbuf_get_width(pb)) != psize )
 915              || ( static_cast<unsigned>(gdk_pixbuf_get_height(pb)) != psize ) ) {
 916             GdkPixbuf *spb = gdk_pixbuf_scale_simple(pb, psize, psize, GDK_INTERP_HYPER);
 917             g_object_unref(G_OBJECT(pb));
 918             pb = spb;
 919         }
 920     }
 921
 922     return pb;
 923 }
 924
 925 // takes doc, root, icon, and icon name to produce pixels
 926 extern "C" guchar *
 927 sp_icon_doc_icon( SPDocument *doc, NRArenaItem *root,
 928                   gchar const *name, unsigned psize )
 929 {
 930     Inkscape::Preferences *prefs = Inkscape::Preferences::get();
 931     bool const dump = prefs->getBool("/debug/icons/dumpSvg");
 932     guchar *px = NULL;
 933
 934     if (doc) {
 935         SPObject *object = doc->getObjectById(name);
 936         if (object && SP_IS_ITEM(object)) {
 937             /* Find bbox in document */
 938             Geom::Matrix const i2doc(sp_item_i2doc_affine(SP_ITEM(object)));
 939             Geom::OptRect dbox = SP_ITEM(object)->getBounds(i2doc);
 940
 941             if ( SP_OBJECT_PARENT(object) == NULL )
 942             {
 943                 dbox = Geom::Rect(Geom::Point(0, 0),
 944                                 Geom::Point(sp_document_width(doc), sp_document_height(doc)));
 945             }
 946
 947             /* This is in document coordinates, i.e. pixels */
 948             if ( dbox ) {
 949                 NRGC gc(NULL);
 950                 /* Update to renderable state */
 951                 double sf = 1.0;
 952                 nr_arena_item_set_transform(root, (Geom::Matrix)Geom::Scale(sf, sf));
 953                 gc.transform.setIdentity();
 954                 nr_arena_item_invoke_update( root, NULL, &gc,
 955                                              NR_ARENA_ITEM_STATE_ALL,
 956                                              NR_ARENA_ITEM_STATE_NONE );
 957                 /* Item integer bbox in points */
 958                 NRRectL ibox;
 959                 ibox.x0 = (int) floor(sf * dbox->min()[Geom::X] + 0.5);
 960                 ibox.y0 = (int) floor(sf * dbox->min()[Geom::Y] + 0.5);
 961                 ibox.x1 = (int) floor(sf * dbox->max()[Geom::X] + 0.5);
 962                 ibox.y1 = (int) floor(sf * dbox->max()[Geom::Y] + 0.5);
 963
 964                 if ( dump ) {
 965                     g_message( "   box    --'%s'  (%f,%f)-(%f,%f)", name, (double)ibox.x0, (double)ibox.y0, (double)ibox.x1, (double)ibox.y1 );
 966                 }
 967
 968                 /* Find button visible area */
 969                 int width = ibox.x1 - ibox.x0;
 970                 int height = ibox.y1 - ibox.y0;
 971
 972                 if ( dump ) {
 973                     g_message( "   vis    --'%s'  (%d,%d)", name, width, height );
 974                 }
 975
 976                 {
 977                     int block = std::max(width, height);
 978                     if (block != static_cast<int>(psize) ) {
 979                         if ( dump ) {
 980                             g_message("      resizing" );
 981                         }
 982                         sf = (double)psize / (double)block;
 983
 984                         nr_arena_item_set_transform(root, (Geom::Matrix)Geom::Scale(sf, sf));
 985                         gc.transform.setIdentity();
 986                         nr_arena_item_invoke_update( root, NULL, &gc,
 987                                                      NR_ARENA_ITEM_STATE_ALL,
 988                                                      NR_ARENA_ITEM_STATE_NONE );
 989                         /* Item integer bbox in points */
 990                         ibox.x0 = (int) floor(sf * dbox->min()[Geom::X] + 0.5);
 991                         ibox.y0 = (int) floor(sf * dbox->min()[Geom::Y] + 0.5);
 992                         ibox.x1 = (int) floor(sf * dbox->max()[Geom::X] + 0.5);
 993                         ibox.y1 = (int) floor(sf * dbox->max()[Geom::Y] + 0.5);
 994
 995                         if ( dump ) {
 996                             g_message( "   box2   --'%s'  (%f,%f)-(%f,%f)", name, (double)ibox.x0, (double)ibox.y0, (double)ibox.x1, (double)ibox.y1 );
 997                         }
 998
 999                         /* Find button visible area */
1000                         width = ibox.x1 - ibox.x0;
1001                         height = ibox.y1 - ibox.y0;
1002                         if ( dump ) {
1003                             g_message( "   vis2   --'%s'  (%d,%d)", name, width, height );
1004                         }
1005                     }
1006                 }
1007
1008                 int dx, dy;
1009                 //dx = (psize - width) / 2;
1010                 //dy = (psize - height) / 2;
1011                 dx=dy=psize;
1012                 dx=(dx-width)/2; // watch out for psize, since 'unsigned'-'signed' can cause problems if the result is negative
1013                 dy=(dy-height)/2;
1014                 NRRectL area;
1015                 area.x0 = ibox.x0 - dx;
1016                 area.y0 = ibox.y0 - dy;
1017                 area.x1 = area.x0 + psize;
1018                 area.y1 = area.y0 + psize;
1019                 /* Actual renderable area */
1020                 NRRectL ua;
1021                 ua.x0 = MAX(ibox.x0, area.x0);
1022                 ua.y0 = MAX(ibox.y0, area.y0);
1023                 ua.x1 = MIN(ibox.x1, area.x1);
1024                 ua.y1 = MIN(ibox.y1, area.y1);
1025
1026                 if ( dump ) {
1027                     g_message( "   area   --'%s'  (%f,%f)-(%f,%f)", name, (double)area.x0, (double)area.y0, (double)area.x1, (double)area.y1 );
1028                     g_message( "   ua     --'%s'  (%f,%f)-(%f,%f)", name, (double)ua.x0, (double)ua.y0, (double)ua.x1, (double)ua.y1 );
1029                 }
1030                 /* Set up pixblock */
1031                 px = g_new(guchar, 4 * psize * psize);
1032                 memset(px, 0x00, 4 * psize * psize);
1033                 /* Render */
1034                 NRPixBlock B;
1035                 nr_pixblock_setup_extern( &B, NR_PIXBLOCK_MODE_R8G8B8A8N,
1036                                           ua.x0, ua.y0, ua.x1, ua.y1,
1037                                           px + 4 * psize * (ua.y0 - area.y0) +
1038                                           4 * (ua.x0 - area.x0),
1039                                           4 * psize, FALSE, FALSE );
1040                 nr_arena_item_invoke_render(NULL, root, &ua, &B,
1041                                              NR_ARENA_ITEM_RENDER_NO_CACHE );
1042                 nr_pixblock_release(&B);
1043
1044                 bool useOverlay = prefs->getBool("/debug/icons/overlaySvg");
1045                 if ( useOverlay ) {
1046                     sp_icon_overlay_pixels( px, psize, psize, 4 * psize, 0x00, 0x00, 0xff );
1047                 }
1048             }
1049         }
1050     }
1051
1052     return px;
1053 } // end of sp_icon_doc_icon()
1054
1055
1056
1057 struct svg_doc_cache_t
1058 {
1059     SPDocument *doc;
1060     NRArenaItem *root;
1061 };
1062
1063 static std::map<Glib::ustring, svg_doc_cache_t *> doc_cache;
1064 static std::map<Glib::ustring, GdkPixbuf *> pb_cache;
1065
1066 Glib::ustring icon_cache_key(gchar const *name,
1067                              unsigned lsize, unsigned psize)
1068 {
1069     Glib::ustring key=name;
1070     key += ":";
1071     key += lsize;
1072     key += ":";
1073     key += psize;
1074     return key;
1075 }
1076
1077 GdkPixbuf *get_cached_pixbuf(Glib::ustring const &key) {
1078     std::map<Glib::ustring, GdkPixbuf *>::iterator found = pb_cache.find(key);
1079     if ( found != pb_cache.end() ) {
1080         return found->second;
1081     }
1082     return NULL;
1083 }
1084
1085 static std::list<gchar*> &icons_svg_paths()
1086 {
1087     static std::list<gchar *> sources;
1088     static bool initialized = false;
1089     if (!initialized) {
1090         // Fall back from user prefs dir into system locations.
1091         gchar *userdir = profile_path("icons");
1092         sources.push_back(g_build_filename(userdir,"icons.svg", NULL));
1093         sources.push_back(g_build_filename(INKSCAPE_PIXMAPDIR, "icons.svg", NULL));
1094         g_free(userdir);
1095         initialized = true;
1096     }
1097     return sources;
1098 }
1099
1100 // this function renders icons from icons.svg and returns the pixels.
1101 static guchar *load_svg_pixels(gchar const *name,
1102                                unsigned /*lsize*/, unsigned psize)
1103 {
1104     SPDocument *doc = NULL;
1105     NRArenaItem *root = NULL;
1106     svg_doc_cache_t *info = NULL;
1107
1108     std::list<gchar *> &sources = icons_svg_paths();
1109
1110     // Try each document in turn until we successfully load the icon from one
1111     guchar *px=NULL;
1112     for (std::list<gchar*>::iterator i = sources.begin(); i != sources.end() && !px; ++i) {
1113         gchar *doc_filename = *i;
1114
1115         // Did we already load this doc?
1116         Glib::ustring key(doc_filename);
1117         info = 0;
1118         {
1119             std::map<Glib::ustring, svg_doc_cache_t *>::iterator i = doc_cache.find(key);
1120             if ( i != doc_cache.end() ) {
1121                 info = i->second;
1122             }
1123         }
1124
1125         /* Try to load from document. */
1126         if (!info &&
1127             Inkscape::IO::file_test( doc_filename, G_FILE_TEST_IS_REGULAR ) &&
1128             (doc = sp_document_new( doc_filename, FALSE )) ) {
1129
1130             //g_message("Loaded icon file %s", doc_filename);
1131             // prep the document
1132             sp_document_ensure_up_to_date(doc);
1133             /* Create new arena */
1134             NRArena *arena = NRArena::create();
1135             /* Create ArenaItem and set transform */
1136             unsigned visionkey = sp_item_display_key_new(1);
1137             /* fixme: Memory manage root if needed (Lauris) */
1138             root = sp_item_invoke_show( SP_ITEM(SP_DOCUMENT_ROOT(doc)),
1139                                         arena, visionkey, SP_ITEM_SHOW_DISPLAY );
1140
1141             // store into the cache
1142             info = new svg_doc_cache_t;
1143             g_assert(info);
1144
1145             info->doc=doc;
1146             info->root=root;
1147             doc_cache[key]=info;
1148         }
1149         if (info) {
1150             doc=info->doc;
1151             root=info->root;
1152         }
1153
1154         // move on to the next document if we couldn't get anything
1155         if (!info && !doc) {
1156             continue;
1157         }
1158
1159         px = sp_icon_doc_icon( doc, root, name, psize );
1160 //         if (px) {
1161 //             g_message("Found icon %s in %s", name, doc_filename);
1162 //         }
1163     }
1164
1165 //     if (!px) {
1166 //         g_message("Not found icon %s", name);
1167 //     }
1168     return px;
1169 }
1170
1171 static GdkPixbuf *sp_icon_image_load_svg(gchar const *name, GtkIconSize lsize, unsigned psize)
1172 {
1173     Glib::ustring key = icon_cache_key(name, lsize, psize);
1174
1175     // did we already load this icon at this scale/size?
1176     GdkPixbuf* pb = get_cached_pixbuf(key);
1177     if (!pb) {
1178         guchar *px = load_svg_pixels(name, lsize, psize);
1179         if (px) {
1180             pb = gdk_pixbuf_new_from_data(px, GDK_COLORSPACE_RGB, TRUE, 8,
1181                                           psize, psize, psize * 4,
1182                                           (GdkPixbufDestroyNotify)g_free, NULL);
1183             pb_cache[key] = pb;
1184         }
1185     }
1186
1187     if ( pb ) {
1188         // increase refcount since we're handing out ownership
1189         g_object_ref(G_OBJECT(pb));
1190     }
1191     return pb;
1192 }
1193
1194 void sp_icon_overlay_pixels(guchar *px, int width, int height, int stride,
1195                             unsigned r, unsigned g, unsigned b)
1196 {
1197     int bytesPerPixel = 4;
1198     int spacing = 4;
1199     for ( int y = 0; y < height; y += spacing ) {
1200         guchar *ptr = px + y * stride;
1201         for ( int x = 0; x < width; x += spacing ) {
1202             *(ptr++) = r;
1203             *(ptr++) = g;
1204             *(ptr++) = b;
1205             *(ptr++) = 0xff;
1206
1207             ptr += bytesPerPixel * (spacing - 1);
1208         }
1209     }
1210
1211     if ( width > 1 && height > 1 ) {
1212         // point at the last pixel
1213         guchar *ptr = px + ((height-1) * stride) + ((width - 1) * bytesPerPixel);
1214
1215         if ( width > 2 ) {
1216             px[4] = r;
1217             px[5] = g;
1218             px[6] = b;
1219             px[7] = 0xff;
1220
1221             ptr[-12] = r;
1222             ptr[-11] = g;
1223             ptr[-10] = b;
1224             ptr[-9] = 0xff;
1225         }
1226
1227         ptr[-4] = r;
1228         ptr[-3] = g;
1229         ptr[-2] = b;
1230         ptr[-1] = 0xff;
1231
1232         px[0 + stride] = r;
1233         px[1 + stride] = g;
1234         px[2 + stride] = b;
1235         px[3 + stride] = 0xff;
1236
1237         ptr[0 - stride] = r;
1238         ptr[1 - stride] = g;
1239         ptr[2 - stride] = b;
1240         ptr[3 - stride] = 0xff;
1241
1242         if ( height > 2 ) {
1243             ptr[0 - stride * 3] = r;
1244             ptr[1 - stride * 3] = g;
1245             ptr[2 - stride * 3] = b;
1246             ptr[3 - stride * 3] = 0xff;
1247         }
1248     }
1249 }
1250
1251
1252 /*
1253   Local Variables:
1254   mode:c++
1255   c-file-style:"stroustrup"
1256   c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1257   indent-tabs-mode:nil
1258   fill-column:99
1259   End:
1260 */
1261 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :