icon-preview.cpp revision f77fbbae517ab9a0c194068e88cbdf0f43b72f9b
/** @file
* @brief A simple dialog for previewing icon representation.
*/
/* Authors:
* Jon A. Cruz
* Bob Jamison
* Other dudes from The Inkscape Organization
*
* Copyright (C) 2004 Bob Jamison
* Copyright (C) 2005 Jon A. Cruz
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <gtk/gtk.h>
#include <glib/gmem.h>
#include <glibmm/i18n.h>
#include <gtkmm/buttonbox.h>
#include <gtkmm/stock.h>
#include "desktop.h"
#include "desktop-handles.h"
#include "display/nr-arena.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" {
// takes doc, root, icon, and icon name to produce pixels
guchar *
sp_icon_doc_icon( SPDocument *doc, NRArenaItem *root,
const gchar *name, unsigned int psize );
}
namespace Inkscape {
namespace UI {
namespace Dialogs {
IconPreviewPanel &IconPreviewPanel::getInstance()
{
IconPreviewPanel *instance = new IconPreviewPanel();
instance->refreshPreview();
return *instance;
}
//#########################################################################
//## E V E N T S
//#########################################################################
void IconPreviewPanel::on_button_clicked(int which)
{
if ( hot != which ) {
buttons[hot]->set_active( false );
hot = which;
updateMagnify();
_getContents()->queue_draw();
}
}
//#########################################################################
//## C O N S T R U C T O R / D E S T R U C T O R
//#########################################################################
/**
* Constructor
*/
IconPreviewPanel::IconPreviewPanel() :
UI::Widget::Panel("", "/dialogs/iconpreview", SP_VERB_VIEW_ICON_PREVIEW),
hot(1),
refreshButton(0),
selectionButton(0)
{
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
numEntries = 0;
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();
magBox->pack_start( magnified );
magBox->pack_start( magLabel, Gtk::PACK_SHRINK );
Gtk::VBox * verts = new Gtk::VBox();
for ( int i = 0; i < numEntries; i++ ) {
pixMem[i] = new guchar[4 * sizes[i] * sizes[i]];
memset( pixMem[i], 0x00, 4 * sizes[i] * sizes[i] );
GdkPixbuf *pb = gdk_pixbuf_new_from_data( pixMem[i], GDK_COLORSPACE_RGB, TRUE, 8, sizes[i], sizes[i], sizes[i] * 4, /*(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 );
buttons[i]->set_icon_widget(*images[i]);
tips.set_tip((*buttons[i]), label);
buttons[i]->signal_clicked().connect( sigc::bind<int>( sigc::mem_fun(*this, &IconPreviewPanel::on_button_clicked), i) );
verts->add(*buttons[i]);
}
iconBox.pack_start(splitter);
splitter.pack1( *magBox, true, true );
splitter.pack2( *verts, false, false );
//## The Refresh button
Gtk::HButtonBox* holder = new Gtk::HButtonBox( Gtk::BUTTONBOX_END );
_getContents()->pack_end(*holder, false, false);
selectionButton = new Gtk::ToggleButton(_("Selection")); // , GTK_RESPONSE_APPLY
holder->pack_start( *selectionButton, false, false );
tips.set_tip((*selectionButton), _("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 );
refreshButton = new Gtk::Button(Gtk::Stock::REFRESH); // , GTK_RESPONSE_APPLY
holder->pack_end( *refreshButton, false, false );
tips.set_tip((*refreshButton), _("Refresh the icons"));
refreshButton->signal_clicked().connect( sigc::mem_fun(*this, &IconPreviewPanel::refreshPreview) );
_getContents()->pack_start(iconBox, Gtk::PACK_EXPAND_WIDGET);
show_all_children();
}
//#########################################################################
//## M E T H O D S
//#########################################################################
void IconPreviewPanel::refreshPreview()
{
SPDesktop *desktop = getDesktop();
if ( desktop ) {
if ( selectionButton && selectionButton->get_active() )
{
Inkscape::Selection * sel = sp_desktop_selection(desktop);
if ( sel ) {
//g_message("found a selection to play with");
GSList const *items = sel->itemList();
SPObject *target = 0;
while ( items && !target ) {
SPItem* item = SP_ITEM( items->data );
SPObject * obj = SP_OBJECT(item);
gchar const *id = obj->getId();
if ( id ) {
target = obj;
}
items = g_slist_next(items);
}
if ( target ) {
renderPreview(target);
}
}
}
else
{
SPObject *target = desktop->currentRoot();
if ( target ) {
renderPreview(target);
}
}
}
}
void IconPreviewPanel::modeToggled()
{
Inkscape::Preferences *prefs = Inkscape::Preferences::get();
prefs->setBool("/iconpreview/selectionOnly", (selectionButton && selectionButton->get_active()));
refreshPreview();
}
void IconPreviewPanel::renderPreview( SPObject* obj )
{
SPDocument * doc = SP_OBJECT_DOCUMENT(obj);
gchar const * id = obj->getId();
// g_message(" setting up to render '%s' as the icon", id );
NRArenaItem *root = NULL;
/* Create new arena */
NRArena *arena = NRArena::create();
/* Create ArenaItem and set transform */
unsigned int visionkey = sp_item_display_key_new(1);
root = sp_item_invoke_show ( SP_ITEM( SP_DOCUMENT_ROOT(doc) ),
arena, visionkey, SP_ITEM_SHOW_DISPLAY );
for ( int i = 0; i < numEntries; i++ ) {
guchar * px = sp_icon_doc_icon( doc, root, id, sizes[i] );
// g_message( " size %d %s", sizes[i], (px ? "worked" : "failed") );
if ( px ) {
memcpy( pixMem[i], px, sizes[i] * sizes[i] * 4 );
g_free( px );
px = 0;
} else {
memset( pixMem[i], 0, sizes[i] * sizes[i] * 4 );
}
images[i]->queue_draw();
}
updateMagnify();
sp_item_invoke_hide(SP_ITEM(sp_document_root(doc)), visionkey);
nr_object_unref((NRObject *) arena);
}
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
/*
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 :