#ifdef HAVE_CONFIG_H

# include <config.h>

#endif

#include <boost/scoped_ptr.hpp>

#include <gtk/gtk.h>

#include <glib.h>

#include <glibmm/i18n.h>

#include <gtkmm/alignment.h>

#include <gtkmm/buttonbox.h>

#include <gtkmm/checkbutton.h>

#include <gtkmm/frame.h>

#include <gtkmm/stock.h>

#include "desktop.h"

#include "desktop-handles.h"

#include "display/drawing.h"

#include "document.h"

#include "inkscape.h"

#include "preferences.h"

#include "selection.h"

#include "sp-root.h"

#include "xml/repr.h"

#include "icon-preview.h"

extern "C" {

guchar *

sp_icon_doc_icon( SPDocument *doc, Inkscape::Drawing &drawing,

const gchar *name, unsigned int psize, unsigned &stride);

}

#define noICON_VERBOSE 1

namespace Inkscape {

namespace UI {

namespace Dialog {

IconPreviewPanel &IconPreviewPanel::getInstance()

{

IconPreviewPanel *instance = new IconPreviewPanel();

instance->refreshPreview();

return *instance;

}

void IconPreviewPanel::on_button_clicked(int which)

{

if ( hot != which ) {

buttons[hot]->set_active( false );

hot = which;

updateMagnify();

_getContents()->queue_draw();

}

}

IconPreviewPanel::IconPreviewPanel() :

UI::Widget::Panel("", "/dialogs/iconpreview", SP_VERB_VIEW_ICON_PREVIEW),

deskTrack(),

desktop(0),

document(0),

timer(0),

renderTimer(0),

pending(false),

minDelay(0.1),

targetId(),

hot(1),

selectionButton(0),

desktopChangeConn(),

docReplacedConn(),

docModConn(),

selChangedConn()

{

Inkscape::Preferences *prefs = Inkscape::Preferences::get();

numEntries = 0;

bool pack = prefs->getBool("/iconpreview/pack", true);

std::vector<Glib::ustring> pref_sizes = prefs->getAllDirs("/iconpreview/sizes/default");

std::vector<int> rawSizes;

for (std::vector<Glib::ustring>::iterator i = pref_sizes.begin(); i != pref_sizes.end(); ++i) {

if (prefs->getBool(*i + "/show", true)) {

int sizeVal = prefs->getInt(*i + "/value", -1);

if (sizeVal > 0) {

rawSizes.push_back(sizeVal);

}

}

}

if ( !rawSizes.empty() ) {

numEntries = rawSizes.size();

sizes = new int[numEntries];

int i = 0;

for ( std::vector<int>::iterator it = rawSizes.begin(); it != rawSizes.end(); ++it, ++i ) {

sizes[i] = *it;

}

}

if ( numEntries < 1 )

{

numEntries = 5;

sizes = new int[numEntries];

sizes[0] = 16;

sizes[1] = 24;

sizes[2] = 32;

sizes[3] = 48;

sizes[4] = 128;

}

pixMem = new guchar*[numEntries];

images = new Gtk::Image*[numEntries];

labels = new Glib::ustring*[numEntries];

buttons = new Gtk::ToggleToolButton*[numEntries];

for ( int i = 0; i < numEntries; i++ ) {

char *label = g_strdup_printf(_("%d x %d"), sizes[i], sizes[i]);

labels[i] = new Glib::ustring(label);

g_free(label);

pixMem[i] = 0;

images[i] = 0;

}

magLabel.set_label( *labels[hot] );

Gtk::VBox* magBox = new Gtk::VBox();

Gtk::Frame *magFrame = Gtk::manage(new Gtk::Frame(_("Magnified:")));

magFrame->add( magnified );

magBox->pack_start( *magFrame, Gtk::PACK_EXPAND_WIDGET );

magBox->pack_start( magLabel, Gtk::PACK_SHRINK );

Gtk::VBox *verts = new Gtk::VBox();

Gtk::HBox *horiz = 0;

int previous = 0;

int avail = 0;

for ( int i = numEntries - 1; i >= 0; --i ) {

int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, sizes[i]);

pixMem[i] = new guchar[sizes[i] * stride];

memset( pixMem[i], 0x00, sizes[i] * stride );

GdkPixbuf *pb = gdk_pixbuf_new_from_data( pixMem[i], GDK_COLORSPACE_RGB, TRUE, 8, sizes[i], sizes[i], stride, /*(GdkPixbufDestroyNotify)g_free*/NULL, NULL );

GtkImage* img = GTK_IMAGE( gtk_image_new_from_pixbuf( pb ) );

images[i] = Glib::wrap(img);

Glib::ustring label(*labels[i]);

buttons[i] = new Gtk::ToggleToolButton(label);

buttons[i]->set_active( i == hot );

if ( prefs->getBool("/iconpreview/showFrames", true) ) {

Gtk::Frame *frame = new Gtk::Frame();

frame->set_shadow_type(Gtk::SHADOW_ETCHED_IN);

frame->add(*images[i]);

buttons[i]->set_icon_widget(*Gtk::manage(frame));

} else {

buttons[i]->set_icon_widget(*images[i]);

}

buttons[i]->set_tooltip_text(label);

buttons[i]->signal_clicked().connect( sigc::bind<int>( sigc::mem_fun(*this, &IconPreviewPanel::on_button_clicked), i) );

Gtk::Alignment *align = Gtk::manage(new Gtk::Alignment(0.5, 0.5, 0, 0));

align->add(*buttons[i]);

int pad = 12;

if ( !pack || ( (avail == 0) && (previous == 0) ) ) {

verts->pack_end(*align, Gtk::PACK_SHRINK);

previous = sizes[i];

avail = sizes[i];

} else {

if ((avail < pad) || ((sizes[i] > avail) && (sizes[i] < previous))) {

horiz = 0;

}

if ((horiz == 0) && (sizes[i] <= previous)) {

avail = previous;

}

if (sizes[i] <= avail) {

if (!horiz) {

horiz = Gtk::manage(new Gtk::HBox());

avail = previous;

verts->pack_end(*horiz, Gtk::PACK_SHRINK);

}

horiz->pack_start(*align, Gtk::PACK_EXPAND_WIDGET);

avail -= sizes[i];

avail -= pad; // a little extra for padding

} else {

horiz = 0;

verts->pack_end(*align, Gtk::PACK_SHRINK);

}

}

}

iconBox.pack_start(splitter);

splitter.pack1( *magBox, true, true );

Gtk::Frame *actuals = Gtk::manage(new Gtk::Frame(_("Actual Size:")));

actuals->add(*verts);

splitter.pack2( *actuals, false, false );

selectionButton = new Gtk::CheckButton(C_("Icon preview window", "Sele_ction"), true);//selectionButton = (Gtk::ToggleButton*) gtk_check_button_new_with_mnemonic(_("_Selection")); // , GTK_RESPONSE_APPLY

magBox->pack_start( *selectionButton, Gtk::PACK_SHRINK );

selectionButton->set_tooltip_text(_("Selection only or whole document"));

selectionButton->signal_clicked().connect( sigc::mem_fun(*this, &IconPreviewPanel::modeToggled) );

gint val = prefs->getBool("/iconpreview/selectionOnly");

selectionButton->set_active( val != 0 );

_getContents()->pack_start(iconBox, Gtk::PACK_SHRINK);

show_all_children();

// Connect this up last

desktopChangeConn = deskTrack.connectDesktopChanged( sigc::mem_fun(*this, &IconPreviewPanel::setDesktop) );

deskTrack.connect(GTK_WIDGET(gobj()));

}

IconPreviewPanel::~IconPreviewPanel()

{

setDesktop(0);

if (timer) {

timer->stop();

delete timer;

timer = 0;

}

if ( renderTimer ) {

renderTimer->stop();

delete renderTimer;

renderTimer = 0;

}

selChangedConn.disconnect();

docModConn.disconnect();

docReplacedConn.disconnect();

desktopChangeConn.disconnect();

deskTrack.disconnect();

}

#if ICON_VERBOSE

static Glib::ustring getTimestr()

{

Glib::ustring str;

GTimeVal now = {0, 0};

g_get_current_time(&now);

glong secs = now.tv_sec % 60;

glong mins = (now.tv_sec / 60) % 60;

gchar *ptr = g_strdup_printf(":%02ld:%02ld.%06ld", mins, secs, now.tv_usec);

str = ptr;

g_free(ptr);

ptr = 0;

return str;

}

#endif // ICON_VERBOSE

void IconPreviewPanel::setDesktop( SPDesktop* desktop )

{

Panel::setDesktop(desktop);

SPDocument *newDoc = (desktop) ? desktop->doc() : 0;

if ( desktop != this->desktop ) {

docReplacedConn.disconnect();

selChangedConn.disconnect();

this->desktop = Panel::getDesktop();

if ( this->desktop ) {

docReplacedConn = this->desktop->connectDocumentReplaced(sigc::hide<0>(sigc::mem_fun(this, &IconPreviewPanel::setDocument)));

if ( this->desktop->selection && Inkscape::Preferences::get()->getBool("/iconpreview/autoRefresh", true) ) {

selChangedConn = desktop->selection->connectChanged(sigc::hide(sigc::mem_fun(this, &IconPreviewPanel::queueRefresh)));

}

}

}

setDocument(newDoc);

deskTrack.setBase(desktop);

}

void IconPreviewPanel::setDocument( SPDocument *document )

{

if (this->document != document) {

docModConn.disconnect();

this->document = document;

if (this->document) {

if ( Inkscape::Preferences::get()->getBool("/iconpreview/autoRefresh", true) ) {

docModConn = this->document->connectModified(sigc::hide(sigc::mem_fun(this, &IconPreviewPanel::queueRefresh)));

}

queueRefresh();

}

}

}

void IconPreviewPanel::refreshPreview()

{

SPDesktop *desktop = getDesktop();

if (!timer) {

timer = new Glib::Timer();

}

if (timer->elapsed() < minDelay) {

#if ICON_VERBOSE

g_message( "%s Deferring refresh as too soon. calling queueRefresh()", getTimestr().c_str() );

#endif //ICON_VERBOSE

// Do not refresh too quickly

queueRefresh();

} else if ( desktop ) {

#if ICON_VERBOSE

g_message( "%s Refreshing preview.", getTimestr().c_str() );

#endif // ICON_VERBOSE

bool hold = Inkscape::Preferences::get()->getBool("/iconpreview/selectionHold", true);

SPObject *target = 0;

if ( selectionButton && selectionButton->get_active() )

{

target = (hold && !targetId.empty()) ? desktop->doc()->getObjectById( targetId.c_str() ) : 0;

if ( !target ) {

targetId.clear();

Inkscape::Selection * sel = sp_desktop_selection(desktop);

if ( sel ) {

//g_message("found a selection to play with");

GSList const *items = sel->itemList();

while ( items && !target ) {

SPItem* item = SP_ITEM( items->data );

gchar const *id = item->getId();

if ( id ) {

targetId = id;

target = item;

}

items = g_slist_next(items);

}

}

}

} else {

target = desktop->currentRoot();

}

if ( target ) {

renderPreview(target);

}

#if ICON_VERBOSE

g_message( "%s resetting timer", getTimestr().c_str() );

#endif // ICON_VERBOSE

timer->reset();

}

}

bool IconPreviewPanel::refreshCB()

{

bool callAgain = true;

if (!timer) {

timer = new Glib::Timer();

}

if ( timer->elapsed() > minDelay ) {

#if ICON_VERBOSE

g_message( "%s refreshCB() timer has progressed", getTimestr().c_str() );

#endif // ICON_VERBOSE

callAgain = false;

refreshPreview();

#if ICON_VERBOSE

g_message( "%s refreshCB() setting pending false", getTimestr().c_str() );

#endif // ICON_VERBOSE

pending = false;

}

return callAgain;

}

void IconPreviewPanel::queueRefresh()

{

if (!pending) {

pending = true;

#if ICON_VERBOSE

g_message( "%s queueRefresh() Setting pending true", getTimestr().c_str() );

#endif // ICON_VERBOSE

if (!timer) {

timer = new Glib::Timer();

}

Glib::signal_idle().connect( sigc::mem_fun(this, &IconPreviewPanel::refreshCB), Glib::PRIORITY_DEFAULT_IDLE );

}

}

void IconPreviewPanel::modeToggled()

{

Inkscape::Preferences *prefs = Inkscape::Preferences::get();

bool selectionOnly = (selectionButton && selectionButton->get_active());

prefs->setBool("/iconpreview/selectionOnly", selectionOnly);

if ( !selectionOnly ) {

targetId.clear();

}

refreshPreview();

}

void IconPreviewPanel::renderPreview( SPObject* obj )

{

SPDocument * doc = obj->document;

gchar const * id = obj->getId();

if ( !renderTimer ) {

renderTimer = new Glib::Timer();

}

renderTimer->reset();

#if ICON_VERBOSE

g_message("%s setting up to render '%s' as the icon", getTimestr().c_str(), id );

#endif // ICON_VERBOSE

Inkscape::Drawing drawing;

/* Create drawing items and set transform */

unsigned int visionkey = SPItem::display_key_new(1);

drawing.setRoot(doc->getRoot()->invoke_show( drawing, visionkey, SP_ITEM_SHOW_DISPLAY ));

for ( int i = 0; i < numEntries; i++ ) {

unsigned unused;

int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, sizes[i]);

guchar * px = sp_icon_doc_icon( doc, drawing, id, sizes[i], unused);

if ( px ) {

memcpy( pixMem[i], px, sizes[i] * stride );

g_free( px );

px = 0;

} else {

memset( pixMem[i], 0, sizes[i] * stride );

}

images[i]->queue_draw();

}

updateMagnify();

doc->getRoot()->invoke_hide(visionkey);

renderTimer->stop();

minDelay = std::max( 0.1, renderTimer->elapsed() * 3.0 );

#if ICON_VERBOSE

g_message(" render took %f seconds.", renderTimer->elapsed());

#endif // ICON_VERBOSE

}

void IconPreviewPanel::updateMagnify()

{

Glib::RefPtr<Gdk::Pixbuf> buf = images[hot]->get_pixbuf()->scale_simple( 128, 128, Gdk::INTERP_NEAREST );

magLabel.set_label( *labels[hot] );

magnified.set( buf );

magnified.queue_draw();

magnified.get_parent()->queue_draw();

}

} //namespace Dialogs

} //namespace UI

} //namespace Inkscape