#ifdef HAVE_CONFIG_H

# include "config.h"

#endif

#include "path-prefix.h"

#include <glib/gmem.h>

#include <gtk/gtkiconfactory.h>

#include <gtk/gtkstock.h>

#include <gtk/gtkimage.h>

#include <gtkmm/image.h>

#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

};

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 g_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)g_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<gint>(lsize), 0, static_cast<gint>(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;

}

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;

}

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<guint>(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<guint>(Inkscape::ICON_SIZE_DECORATION) < G_N_ELEMENTS(iconSizeLookup) ?

iconSizeLookup[static_cast<int>(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<guint>(Inkscape::ICON_SIZE_DECORATION) < G_N_ELEMENTS(iconSizeLookup) ?

iconSizeLookup[static_cast<int>(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<int>(icon->psize) );

int const y1 = std::min(area->y + area->height, widget.allocation.y + pady + static_cast<int>(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<unsigned>(gdk_pixbuf_get_width(pb)) != psize )

|| ( static_cast<unsigned>(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 = g_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;

}

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<int>(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 = g_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<Glib::ustring, svg_doc_cache_t *> doc_cache;

static std::map<Glib::ustring, guchar *> 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<Glib::ustring, guchar *>::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<gchar *> 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<Glib::ustring, svg_doc_cache_t *>::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;

}

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 <queue>

static std::queue<preRenderItem> 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;

}

}