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