/** \file * SPIcon: Generic icon widget */ /* * Author: * Lauris Kaplinski * Jon A. Cruz * * Copyright (C) 2002 Lauris Kaplinski * * Released under GNU GPL, read the file 'COPYING' for more information */ #ifdef HAVE_CONFIG_H # include "config.h" #endif #include "path-prefix.h" #include #include #include #include #include "prefs-utils.h" #include "inkscape.h" #include "document.h" #include "sp-item.h" #include "display/nr-arena.h" #include "display/nr-arena-item.h" #include "io/sys.h" #include "icon.h" static gboolean icon_prerender_task(gpointer data); static void addPreRender( Inkscape::IconSize lsize, gchar const *name ); static void sp_icon_class_init(SPIconClass *klass); static void sp_icon_init(SPIcon *icon); static void sp_icon_destroy(GtkObject *object); static void sp_icon_reset(SPIcon *icon); static void sp_icon_clear(SPIcon *icon); static void sp_icon_size_request(GtkWidget *widget, GtkRequisition *requisition); static void sp_icon_size_allocate(GtkWidget *widget, GtkAllocation *allocation); static int sp_icon_expose(GtkWidget *widget, GdkEventExpose *event); static void sp_icon_paint(SPIcon *icon, GdkRectangle const *area); static void sp_icon_screen_changed( GtkWidget *widget, GdkScreen *previous_screen ); static void sp_icon_style_set( GtkWidget *widget, GtkStyle *previous_style ); static void sp_icon_theme_changed( SPIcon *icon ); static guchar *sp_icon_image_load_pixmap(gchar const *name, unsigned lsize, unsigned psize); static guchar *sp_icon_image_load_svg(gchar const *name, unsigned lsize, unsigned psize); static guchar *sp_icon_image_load(SPIcon *icon, gchar const *name); static int sp_icon_get_phys_size(int size); static void sp_icon_overlay_pixels( guchar *px, int width, int height, int stride, unsigned r, unsigned g, unsigned b ); static void injectCustomSize(); static GtkWidgetClass *parent_class; static bool sizeDirty = true; static bool sizeMapDone = false; static GtkIconSize iconSizeLookup[] = { GTK_ICON_SIZE_INVALID, GTK_ICON_SIZE_MENU, GTK_ICON_SIZE_SMALL_TOOLBAR, GTK_ICON_SIZE_LARGE_TOOLBAR, GTK_ICON_SIZE_BUTTON, GTK_ICON_SIZE_DND, GTK_ICON_SIZE_DIALOG, GTK_ICON_SIZE_MENU, // for Inkscape::ICON_SIZE_DECORATION }; GtkType sp_icon_get_type() { static GtkType type = 0; if (!type) { GtkTypeInfo info = { "SPIcon", sizeof(SPIcon), sizeof(SPIconClass), (GtkClassInitFunc) sp_icon_class_init, (GtkObjectInitFunc) sp_icon_init, NULL, NULL, NULL }; type = gtk_type_unique(GTK_TYPE_WIDGET, &info); } return type; } static void sp_icon_class_init(SPIconClass *klass) { GtkObjectClass *object_class; GtkWidgetClass *widget_class; object_class = (GtkObjectClass *) klass; widget_class = (GtkWidgetClass *) klass; parent_class = (GtkWidgetClass*)g_type_class_peek_parent(klass); object_class->destroy = sp_icon_destroy; widget_class->size_request = sp_icon_size_request; widget_class->size_allocate = sp_icon_size_allocate; widget_class->expose_event = sp_icon_expose; widget_class->screen_changed = sp_icon_screen_changed; widget_class->style_set = sp_icon_style_set; } static void sp_icon_init(SPIcon *icon) { GTK_WIDGET_FLAGS(icon) |= GTK_NO_WINDOW; icon->lsize = Inkscape::ICON_SIZE_BUTTON; icon->psize = 0; icon->name = 0; icon->pb = 0; icon->pb_faded = 0; } static void sp_icon_destroy(GtkObject *object) { SPIcon *icon = SP_ICON(object); sp_icon_clear(icon); if ( icon->name ) { g_free( icon->name ); icon->name = 0; } ((GtkObjectClass *) (parent_class))->destroy(object); } static void sp_icon_reset( SPIcon *icon ) { icon->psize = 0; sp_icon_clear(icon); } static void sp_icon_clear( SPIcon *icon ) { if (icon->pb) { g_object_unref(G_OBJECT(icon->pb)); icon->pb = NULL; } if (icon->pb_faded) { g_object_unref(G_OBJECT(icon->pb_faded)); icon->pb_faded = NULL; } } static void sp_icon_size_request(GtkWidget *widget, GtkRequisition *requisition) { SPIcon const *icon = SP_ICON(widget); int const size = ( icon->psize ? icon->psize : sp_icon_get_phys_size(icon->lsize) ); requisition->width = size; requisition->height = size; } static void sp_icon_size_allocate(GtkWidget *widget, GtkAllocation *allocation) { widget->allocation = *allocation; if (GTK_WIDGET_DRAWABLE(widget)) { gtk_widget_queue_draw(widget); } } static int sp_icon_expose(GtkWidget *widget, GdkEventExpose *event) { if ( GTK_WIDGET_DRAWABLE(widget) ) { SPIcon *icon = SP_ICON(widget); if ( !icon->pb ) { sp_icon_fetch_pixbuf( icon ); } sp_icon_paint(SP_ICON(widget), &event->area); } return TRUE; } void sp_icon_fetch_pixbuf( SPIcon *icon ) { if ( icon ) { if ( !icon->pb ) { guchar *pixels = 0; icon->psize = sp_icon_get_phys_size(icon->lsize); pixels = sp_icon_image_load( icon, icon->name ); if (pixels) { // don't pass the nr_free because we're caching the pixel // space loaded through ... // I just changed this. make sure sp_icon_image_load still does the right thing. icon->pb = gdk_pixbuf_new_from_data(pixels, GDK_COLORSPACE_RGB, TRUE, 8, icon->psize, icon->psize, icon->psize * 4, /*(GdkPixbufDestroyNotify)nr_free*/NULL, NULL); icon->pb_faded = gdk_pixbuf_copy(icon->pb); pixels = gdk_pixbuf_get_pixels(icon->pb_faded); size_t stride = gdk_pixbuf_get_rowstride(icon->pb_faded); pixels += 3; // alpha for ( int row = 0 ; row < icon->psize ; row++ ) { guchar *row_pixels = pixels; for ( int column = 0 ; column < icon->psize ; column++ ) { *row_pixels = *row_pixels >> 1; row_pixels += 4; } pixels += stride; } } else { /* TODO: We should do something more useful if we can't load the image. */ g_warning ("failed to load icon '%s'", icon->name); } } } } static void sp_icon_screen_changed( GtkWidget *widget, GdkScreen *previous_screen ) { if ( GTK_WIDGET_CLASS( parent_class )->screen_changed ) { GTK_WIDGET_CLASS( parent_class )->screen_changed( widget, previous_screen ); } SPIcon *icon = SP_ICON(widget); sp_icon_theme_changed(icon); } static void sp_icon_style_set( GtkWidget *widget, GtkStyle *previous_style ) { if ( GTK_WIDGET_CLASS( parent_class )->style_set ) { GTK_WIDGET_CLASS( parent_class )->style_set( widget, previous_style ); } SPIcon *icon = SP_ICON(widget); sp_icon_theme_changed(icon); } static void sp_icon_theme_changed( SPIcon *icon ) { //g_message("Got a change bump for this icon"); sizeDirty = true; sp_icon_reset(icon); gtk_widget_queue_draw( GTK_WIDGET(icon) ); } static GtkWidget * sp_icon_new_full( Inkscape::IconSize lsize, gchar const *name ) { static gint dump = prefs_get_int_attribute_limited( "debug.icons", "dumpGtk", 0, 0, 1 ); static gint fallback = prefs_get_int_attribute_limited( "debug.icons", "checkNames", 0, 0, 1 ); addPreRender( lsize, name ); GtkStockItem stock; gboolean tryLoad = gtk_stock_lookup( name, &stock ); if ( !tryLoad && fallback ) { tryLoad |= strncmp("gtk-", name, 4 ) == 0; } if ( !tryLoad && fallback ) { tryLoad |= strncmp("gnome-", name, 6 ) == 0; } GtkWidget *widget = 0; if ( tryLoad ) { gint trySize = CLAMP( static_cast(lsize), 0, static_cast(G_N_ELEMENTS(iconSizeLookup) - 1) ); if ( !sizeMapDone ) { injectCustomSize(); } GtkWidget *img = gtk_image_new_from_stock( name, iconSizeLookup[trySize] ); if ( img ) { GtkImageType type = gtk_image_get_storage_type( GTK_IMAGE(img) ); if ( type == GTK_IMAGE_STOCK ) { widget = GTK_WIDGET(img); img = 0; if ( dump ) { g_message( "loaded gtk '%s' %d (GTK_IMAGE_STOCK)", name, lsize ); } } else { if ( dump ) { g_message( "skipped gtk '%s' %d (not GTK_IMAGE_STOCK)", name, lsize ); } g_object_unref( (GObject *)img ); img = 0; } } } if ( !widget ) { SPIcon *icon = (SPIcon *)g_object_new(SP_TYPE_ICON, NULL); icon->lsize = lsize; icon->name = g_strdup(name); icon->psize = sp_icon_get_phys_size(lsize); widget = GTK_WIDGET(icon); } return widget; } GtkWidget * sp_icon_new( Inkscape::IconSize lsize, gchar const *name ) { return sp_icon_new_full( lsize, name ); } Gtk::Widget *sp_icon_get_icon( Glib::ustring const &oid, Inkscape::IconSize size ) { Gtk::Widget *result = 0; GtkWidget *widget = sp_icon_new_full( size, oid.c_str() ); if ( widget ) { if ( GTK_IS_IMAGE(widget) ) { GtkImage *img = GTK_IMAGE(widget); result = Glib::wrap( img ); } else { result = Glib::wrap( widget ); } } return result; } // Try to load the named svg, falling back to pixmaps guchar * sp_icon_image_load( SPIcon *icon, gchar const *name ) { guchar *px = sp_icon_image_load_svg( name, icon->lsize, icon->psize ); if (!px) { px = sp_icon_image_load_pixmap(name, icon->lsize, icon->psize); } return px; } GtkIconSize sp_icon_get_gtk_size(int size) { static GtkIconSize map[64] = {(GtkIconSize)0}; size = CLAMP(size, 4, 63); if (!map[size]) { static int count = 0; char c[64]; g_snprintf(c, 64, "InkscapeIcon%d", count++); map[size] = gtk_icon_size_register(c, size, size); } return map[size]; } static void injectCustomSize() { // TODO - still need to handle the case of theme changes and resize, especially as we can't re-register a string. if ( !sizeMapDone ) { gint dump = prefs_get_int_attribute_limited( "debug.icons", "dumpDefault", 0, 0, 1 ); gint width = 0; gint height = 0; if ( gtk_icon_size_lookup(GTK_ICON_SIZE_MENU, &width, &height ) ) { gint newWidth = ((width * 3) / 4); gint newHeight = ((height * 3) / 4); GtkIconSize newSizeEnum = gtk_icon_size_register( "inkscape-decoration", newWidth, newHeight ); if ( newSizeEnum ) { if ( dump ) { g_message("Registered (%d, %d) <= (%d, %d) as index %d", newWidth, newHeight, width, height, newSizeEnum); } guint index = static_cast(Inkscape::ICON_SIZE_DECORATION); if ( index < G_N_ELEMENTS(iconSizeLookup) ) { iconSizeLookup[index] = newSizeEnum; } else if ( dump ) { g_message("size lookup array too small to store entry"); } } } sizeMapDone = true; } } static int sp_icon_get_phys_size(int size) { static bool init = false; static int lastSys[Inkscape::ICON_SIZE_DECORATION + 1]; static int vals[Inkscape::ICON_SIZE_DECORATION + 1]; size = CLAMP( size, GTK_ICON_SIZE_MENU, Inkscape::ICON_SIZE_DECORATION ); if ( !sizeMapDone ) { injectCustomSize(); } if ( sizeDirty && init ) { GtkIconSize const gtkSizes[] = { GTK_ICON_SIZE_MENU, GTK_ICON_SIZE_SMALL_TOOLBAR, GTK_ICON_SIZE_LARGE_TOOLBAR, GTK_ICON_SIZE_BUTTON, GTK_ICON_SIZE_DND, GTK_ICON_SIZE_DIALOG, static_cast(Inkscape::ICON_SIZE_DECORATION) < G_N_ELEMENTS(iconSizeLookup) ? iconSizeLookup[static_cast(Inkscape::ICON_SIZE_DECORATION)] : GTK_ICON_SIZE_MENU }; for (unsigned i = 0; i < G_N_ELEMENTS(gtkSizes) && init; ++i) { guint const val_ix = (gtkSizes[i] <= GTK_ICON_SIZE_DIALOG) ? (guint)gtkSizes[i] : (guint)Inkscape::ICON_SIZE_DECORATION; g_assert( val_ix < G_N_ELEMENTS(vals) ); gint width = 0; gint height = 0; if ( gtk_icon_size_lookup(gtkSizes[i], &width, &height ) ) { init &= (lastSys[val_ix] == std::max(width, height)); } } } if ( !init ) { sizeDirty = false; gint dump = prefs_get_int_attribute_limited( "debug.icons", "dumpDefault", 0, 0, 1 ); if ( dump ) { g_message( "Default icon sizes:" ); } memset( vals, 0, sizeof(vals) ); memset( lastSys, 0, sizeof(lastSys) ); GtkIconSize const gtkSizes[] = { GTK_ICON_SIZE_MENU, GTK_ICON_SIZE_SMALL_TOOLBAR, GTK_ICON_SIZE_LARGE_TOOLBAR, GTK_ICON_SIZE_BUTTON, GTK_ICON_SIZE_DND, GTK_ICON_SIZE_DIALOG, static_cast(Inkscape::ICON_SIZE_DECORATION) < G_N_ELEMENTS(iconSizeLookup) ? iconSizeLookup[static_cast(Inkscape::ICON_SIZE_DECORATION)] : GTK_ICON_SIZE_MENU }; gchar const *const names[] = { "GTK_ICON_SIZE_MENU", "GTK_ICON_SIZE_SMALL_TOOLBAR", "GTK_ICON_SIZE_LARGE_TOOLBAR", "GTK_ICON_SIZE_BUTTON", "GTK_ICON_SIZE_DND", "GTK_ICON_SIZE_DIALOG", "inkscape-decoration" }; GtkWidget *icon = (GtkWidget *)g_object_new(SP_TYPE_ICON, NULL); for (unsigned i = 0; i < G_N_ELEMENTS(gtkSizes); ++i) { guint const val_ix = (gtkSizes[i] <= GTK_ICON_SIZE_DIALOG) ? (guint)gtkSizes[i] : (guint)Inkscape::ICON_SIZE_DECORATION; g_assert( val_ix < G_N_ELEMENTS(vals) ); gint width = 0; gint height = 0; bool used = false; if ( gtk_icon_size_lookup(gtkSizes[i], &width, &height ) ) { vals[val_ix] = std::max(width, height); lastSys[val_ix] = vals[val_ix]; used = true; } if (dump) { g_message(" =-- %u size:%d %c(%d, %d) '%s'", i, gtkSizes[i], ( used ? ' ' : 'X' ), width, height, names[i]); } gchar const *id = GTK_STOCK_OPEN; GdkPixbuf *pb = gtk_widget_render_icon( icon, id, gtkSizes[i], NULL); if (pb) { width = gdk_pixbuf_get_width(pb); height = gdk_pixbuf_get_height(pb); int newSize = std::max( width, height ); // TODO perhaps check a few more stock icons to get a range on sizes. if ( newSize > 0 ) { vals[val_ix] = newSize; } if (dump) { g_message(" %u size:%d (%d, %d)", i, gtkSizes[i], width, height); } g_object_unref(G_OBJECT(pb)); } } //g_object_unref(icon); init = true; } return vals[size]; } static void sp_icon_paint(SPIcon *icon, GdkRectangle const *area) { GtkWidget &widget = *GTK_WIDGET(icon); GdkPixbuf *image = GTK_WIDGET_IS_SENSITIVE(&widget) ? icon->pb : icon->pb_faded; if (image) { int const padx = ( ( widget.allocation.width > icon->psize ) ? ( widget.allocation.width - icon->psize ) / 2 : 0 ); int const pady = ( ( widget.allocation.height > icon->psize ) ? ( widget.allocation.height - icon->psize ) / 2 : 0 ); int const x0 = std::max(area->x, widget.allocation.x + padx); int const y0 = std::max(area->y, widget.allocation.y + pady); int const x1 = std::min(area->x + area->width, widget.allocation.x + padx + static_cast(icon->psize) ); int const y1 = std::min(area->y + area->height, widget.allocation.y + pady + static_cast(icon->psize) ); gdk_draw_pixbuf(GDK_DRAWABLE(widget.window), NULL, image, x0 - widget.allocation.x - padx, y0 - widget.allocation.y - pady, x0, y0, x1 - x0, y1 - y0, GDK_RGB_DITHER_NORMAL, x0, y0); } } static guchar * sp_icon_image_load_pixmap(gchar const *name, unsigned lsize, unsigned psize) { gchar *path; guchar *px; GdkPixbuf *pb; path = (gchar *) g_strdup_printf("%s/%s.png", INKSCAPE_PIXMAPDIR, name); // TODO: bulia, please look over gsize bytesRead = 0; gsize bytesWritten = 0; GError *error = NULL; gchar *localFilename = g_filename_from_utf8( path, -1, &bytesRead, &bytesWritten, &error); pb = gdk_pixbuf_new_from_file(localFilename, NULL); g_free(localFilename); g_free(path); if (!pb) { path = (gchar *) g_strdup_printf("%s/%s.xpm", INKSCAPE_PIXMAPDIR, name); // TODO: bulia, please look over gsize bytesRead = 0; gsize bytesWritten = 0; GError *error = NULL; gchar *localFilename = g_filename_from_utf8( path, -1, &bytesRead, &bytesWritten, &error); pb = gdk_pixbuf_new_from_file(localFilename, NULL); g_free(localFilename); g_free(path); } if (pb) { if (!gdk_pixbuf_get_has_alpha(pb)) gdk_pixbuf_add_alpha(pb, FALSE, 0, 0, 0); if ( ( static_cast(gdk_pixbuf_get_width(pb)) != psize ) || ( static_cast(gdk_pixbuf_get_height(pb)) != psize ) ) { GdkPixbuf *spb = gdk_pixbuf_scale_simple(pb, psize, psize, GDK_INTERP_HYPER); g_object_unref(G_OBJECT(pb)); pb = spb; } guchar *spx = gdk_pixbuf_get_pixels(pb); int srs = gdk_pixbuf_get_rowstride(pb); px = nr_new(guchar, 4 * psize * psize); for (unsigned y = 0; y < psize; y++) { memcpy(px + 4 * y * psize, spx + y * srs, 4 * psize); } g_object_unref(G_OBJECT(pb)); return px; } return NULL; } // takes doc, root, icon, and icon name to produce pixels extern "C" guchar * sp_icon_doc_icon( SPDocument *doc, NRArenaItem *root, gchar const *name, unsigned psize ) { gint const dump = prefs_get_int_attribute_limited( "debug.icons", "dumpSvg", 0, 0, 1 ); guchar *px = NULL; if (doc) { SPObject *object = doc->getObjectById(name); if (object && SP_IS_ITEM(object)) { /* Find bbox in document */ NR::Matrix const i2doc(sp_item_i2doc_affine(SP_ITEM(object))); NR::Rect dbox = SP_ITEM(object)->invokeBbox(i2doc); if ( SP_OBJECT_PARENT(object) == NULL ) { dbox = NR::Rect(NR::Point(0, 0), NR::Point(sp_document_width(doc), sp_document_height(doc))); } /* This is in document coordinates, i.e. pixels */ if (dbox.isEmpty() == false) { NRGC gc(NULL); /* Update to renderable state */ double sf = 1.0; NRMatrix t; nr_matrix_set_scale(&t, sf, sf); nr_arena_item_set_transform(root, &t); nr_matrix_set_identity(&gc.transform); nr_arena_item_invoke_update( root, NULL, &gc, NR_ARENA_ITEM_STATE_ALL, NR_ARENA_ITEM_STATE_NONE ); /* Item integer bbox in points */ NRRectL ibox; ibox.x0 = (int) floor(sf * dbox.min()[NR::X] + 0.5); ibox.y0 = (int) floor(sf * dbox.min()[NR::Y] + 0.5); ibox.x1 = (int) floor(sf * dbox.max()[NR::X] + 0.5); ibox.y1 = (int) floor(sf * dbox.max()[NR::Y] + 0.5); if ( dump ) { g_message( " box --'%s' (%f,%f)-(%f,%f)", name, (double)ibox.x0, (double)ibox.y0, (double)ibox.x1, (double)ibox.y1 ); } /* Find button visible area */ int width = ibox.x1 - ibox.x0; int height = ibox.y1 - ibox.y0; if ( dump ) { g_message( " vis --'%s' (%d,%d)", name, width, height ); } { int block = std::max(width, height); if (block != static_cast(psize) ) { if ( dump ) { g_message(" resizing" ); } sf = (double)psize / (double)block; nr_matrix_set_scale(&t, sf, sf); nr_arena_item_set_transform(root, &t); nr_matrix_set_identity(&gc.transform); nr_arena_item_invoke_update( root, NULL, &gc, NR_ARENA_ITEM_STATE_ALL, NR_ARENA_ITEM_STATE_NONE ); /* Item integer bbox in points */ ibox.x0 = (int) floor(sf * dbox.min()[NR::X] + 0.5); ibox.y0 = (int) floor(sf * dbox.min()[NR::Y] + 0.5); ibox.x1 = (int) floor(sf * dbox.max()[NR::X] + 0.5); ibox.y1 = (int) floor(sf * dbox.max()[NR::Y] + 0.5); if ( dump ) { g_message( " box2 --'%s' (%f,%f)-(%f,%f)", name, (double)ibox.x0, (double)ibox.y0, (double)ibox.x1, (double)ibox.y1 ); } /* Find button visible area */ width = ibox.x1 - ibox.x0; height = ibox.y1 - ibox.y0; if ( dump ) { g_message( " vis2 --'%s' (%d,%d)", name, width, height ); } } } int dx, dy; //dx = (psize - width) / 2; //dy = (psize - height) / 2; dx=dy=psize; dx=(dx-width)/2; // watch out for psize, since 'unsigned'-'signed' can cause problems if the result is negative dy=(dy-height)/2; NRRectL area; area.x0 = ibox.x0 - dx; area.y0 = ibox.y0 - dy; area.x1 = area.x0 + psize; area.y1 = area.y0 + psize; /* Actual renderable area */ NRRectL ua; ua.x0 = MAX(ibox.x0, area.x0); ua.y0 = MAX(ibox.y0, area.y0); ua.x1 = MIN(ibox.x1, area.x1); ua.y1 = MIN(ibox.y1, area.y1); if ( dump ) { g_message( " area --'%s' (%f,%f)-(%f,%f)", name, (double)area.x0, (double)area.y0, (double)area.x1, (double)area.y1 ); g_message( " ua --'%s' (%f,%f)-(%f,%f)", name, (double)ua.x0, (double)ua.y0, (double)ua.x1, (double)ua.y1 ); } /* Set up pixblock */ px = nr_new(guchar, 4 * psize * psize); memset(px, 0x00, 4 * psize * psize); /* Render */ NRPixBlock B; nr_pixblock_setup_extern( &B, NR_PIXBLOCK_MODE_R8G8B8A8N, ua.x0, ua.y0, ua.x1, ua.y1, px + 4 * psize * (ua.y0 - area.y0) + 4 * (ua.x0 - area.x0), 4 * psize, FALSE, FALSE ); nr_arena_item_invoke_render( root, &ua, &B, NR_ARENA_ITEM_RENDER_NO_CACHE ); nr_pixblock_release(&B); gint useOverlay = prefs_get_int_attribute_limited( "debug.icons", "overlaySvg", 0, 0, 1 ); if ( useOverlay ) { sp_icon_overlay_pixels( px, psize, psize, 4 * psize, 0x00, 0x00, 0xff ); } } } } return px; } // end of sp_icon_doc_icon() struct svg_doc_cache_t { SPDocument *doc; NRArenaItem *root; }; static std::map doc_cache; static std::map px_cache; static Glib::ustring icon_cache_key(gchar const *name, unsigned lsize, unsigned psize) { Glib::ustring key=name; key += ":"; key += lsize; key += ":"; key += psize; return key; } static guchar *get_cached_pixels(Glib::ustring const &key) { std::map::iterator found=px_cache.find(key); if ( found != px_cache.end() ) { return found->second; } return NULL; } static guchar *load_svg_pixels(gchar const *name, unsigned lsize, unsigned psize) { SPDocument *doc = NULL; NRArenaItem *root = NULL; svg_doc_cache_t *info = NULL; // Fall back from user prefs dir into system locations. Glib::ustring iconsvg = name; iconsvg += ".svg"; std::list sources; sources.push_back(g_build_filename(profile_path("icons"),iconsvg.c_str(), NULL)); sources.push_back(g_build_filename(profile_path("icons"),"icons.svg", NULL)); sources.push_back(g_build_filename(INKSCAPE_PIXMAPDIR, iconsvg.c_str(), NULL)); sources.push_back(g_build_filename(INKSCAPE_PIXMAPDIR, "icons.svg", NULL)); // Try each document in turn until we successfully load the icon from one guchar *px=NULL; while ( !sources.empty() && !px ) { gchar *doc_filename = sources.front(); // Did we already load this doc? Glib::ustring key(doc_filename); info = 0; { std::map::iterator i = doc_cache.find(key); if ( i != doc_cache.end() ) { info = i->second; } } /* Try to load from document. */ if (!info && Inkscape::IO::file_test( doc_filename, G_FILE_TEST_IS_REGULAR ) && (doc = sp_document_new( doc_filename, FALSE )) ) { // prep the document sp_document_ensure_up_to_date(doc); /* Create new arena */ NRArena *arena = NRArena::create(); /* Create ArenaItem and set transform */ unsigned visionkey = sp_item_display_key_new(1); /* fixme: Memory manage root if needed (Lauris) */ root = sp_item_invoke_show( SP_ITEM(SP_DOCUMENT_ROOT(doc)), arena, visionkey, SP_ITEM_SHOW_DISPLAY ); // store into the cache info = new svg_doc_cache_t; g_assert(info); info->doc=doc; info->root=root; doc_cache[key]=info; } if (info) { doc=info->doc; root=info->root; } // toss the filename g_free(doc_filename); sources.pop_front(); // move on to the next document if we couldn't get anything if (!info && !doc) continue; px = sp_icon_doc_icon( doc, root, name, psize ); } return px; } // returns true if icon needed preloading, false if nothing was done static bool prerender_icon(gchar const *name, unsigned lsize, unsigned psize) { Glib::ustring key=icon_cache_key(name, lsize, psize); guchar *px=get_cached_pixels(key); if (px) { return false; } else { px = load_svg_pixels(name, lsize, psize); if (px) { px_cache[key] = px; } return true; } } static guchar * sp_icon_image_load_svg(gchar const *name, unsigned lsize, unsigned psize) { Glib::ustring key=icon_cache_key(name, lsize, psize); // did we already load this icon at this scale/size? guchar *px=get_cached_pixels(key); if (!px) { px = load_svg_pixels(name, lsize, psize); if (px) { px_cache[key] = px; } } return px; } void sp_icon_overlay_pixels(guchar *px, int width, int height, int stride, unsigned r, unsigned g, unsigned b) { for ( int y = 0; y < height; y += 4 ) { guchar *ptr = px + y * stride; for ( int x = 0; x < width; x += 4 ) { *(ptr++) = r; *(ptr++) = g; *(ptr++) = b; *(ptr++) = 0xff; ptr += 4 * 3; } } if ( width > 1 && height > 1 ) { // point at the last pixel guchar *ptr = px + ((height-1) * stride) + ((width - 1) * 4); if ( width > 2 ) { px[4] = r; px[5] = g; px[6] = b; px[7] = 0xff; ptr[-12] = r; ptr[-11] = g; ptr[-10] = b; ptr[-9] = 0xff; } ptr[-4] = r; ptr[-3] = g; ptr[-2] = b; ptr[-1] = 0xff; px[0 + stride] = r; px[1 + stride] = g; px[2 + stride] = b; px[3 + stride] = 0xff; ptr[0 - stride] = r; ptr[1 - stride] = g; ptr[2 - stride] = b; ptr[3 - stride] = 0xff; if ( height > 2 ) { ptr[0 - stride * 3] = r; ptr[1 - stride * 3] = g; ptr[2 - stride * 3] = b; ptr[3 - stride * 3] = 0xff; } } } class preRenderItem { public: preRenderItem( Inkscape::IconSize lsize, gchar const *name ) : _lsize( lsize ), _name( name ) {} Inkscape::IconSize _lsize; Glib::ustring _name; }; #include static std::queue pendingRenders; static bool callbackHooked = false; static void addPreRender( Inkscape::IconSize lsize, gchar const *name ) { if ( !callbackHooked ) { callbackHooked = true; g_idle_add_full( G_PRIORITY_LOW, &icon_prerender_task, NULL, NULL ); } pendingRenders.push(preRenderItem(lsize, name)); } gboolean icon_prerender_task(gpointer data) { if (!pendingRenders.empty()) { preRenderItem single=pendingRenders.front(); pendingRenders.pop(); int psize = sp_icon_get_phys_size(single._lsize); prerender_icon(single._name.c_str(), single._lsize, psize); } if (!pendingRenders.empty()) { return TRUE; } else { callbackHooked = false; return FALSE; } } /* Local Variables: mode:c++ c-file-style:"stroustrup" c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +)) indent-tabs-mode:nil fill-column:99 End: */ // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :