1 /** @file
2 * @brief A simple dialog for previewing icon representation.
3 */
4 /* Authors:
5 * Jon A. Cruz
6 * Bob Jamison
7 * Other dudes from The Inkscape Organization
8 *
9 * Copyright (C) 2004 Bob Jamison
10 * Copyright (C) 2005 Jon A. Cruz
11 *
12 * Released under GNU GPL, read the file 'COPYING' for more information
13 */
14 #ifdef HAVE_CONFIG_H
15 # include <config.h>
16 #endif
18 #include "iconpreview.h"
20 #include <gtk/gtk.h>
22 #include <glib/gmem.h>
23 #include <gtk/gtkdialog.h> //for GTK_RESPONSE* types
24 #include <glibmm/i18n.h>
25 #include <gtkmm/buttonbox.h>
26 #include <gtkmm/stock.h>
28 #include "preferences.h"
29 #include "inkscape.h"
30 #include "document.h"
31 #include "desktop-handles.h"
32 #include "selection.h"
33 #include "desktop.h"
34 #include "display/nr-arena.h"
35 #include "sp-root.h"
36 #include "xml/repr.h"
38 extern "C" {
39 // takes doc, root, icon, and icon name to produce pixels
40 guchar *
41 sp_icon_doc_icon( SPDocument *doc, NRArenaItem *root,
42 const gchar *name, unsigned int psize );
43 }
45 namespace Inkscape {
46 namespace UI {
47 namespace Dialogs {
50 IconPreviewPanel&
51 IconPreviewPanel::getInstance()
52 {
53 static IconPreviewPanel &instance = *new IconPreviewPanel();
55 instance.refreshPreview();
57 return instance;
58 }
60 //#########################################################################
61 //## E V E N T S
62 //#########################################################################
64 void IconPreviewPanel::on_button_clicked(int which)
65 {
66 if ( hot != which ) {
67 buttons[hot]->set_active( false );
69 hot = which;
70 updateMagnify();
71 _getContents()->queue_draw();
72 }
73 }
78 //#########################################################################
79 //## C O N S T R U C T O R / D E S T R U C T O R
80 //#########################################################################
81 /**
82 * Constructor
83 */
84 IconPreviewPanel::IconPreviewPanel() :
85 UI::Widget::Panel("", "/dialogs/iconpreview", SP_VERB_VIEW_ICON_PREVIEW),
86 hot(1),
87 refreshButton(0),
88 selectionButton(0)
89 {
90 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
91 numEntries = 0;
93 std::vector<Glib::ustring> pref_sizes = prefs->getAllDirs("/iconpreview/sizes/default");
94 std::vector<int> rawSizes;
96 for (std::vector<Glib::ustring>::iterator i = pref_sizes.begin(); i != pref_sizes.end(); ++i) {
97 if (prefs->getBool(*i + "/show", true)) {
98 int sizeVal = prefs->getInt(*i + "/value", -1);
99 if (sizeVal > 0) {
100 rawSizes.push_back(sizeVal);
101 }
102 }
103 }
105 if ( !rawSizes.empty() ) {
106 numEntries = rawSizes.size();
107 sizes = new int[numEntries];
108 int i = 0;
109 for ( std::vector<int>::iterator it = rawSizes.begin(); it != rawSizes.end(); ++it, ++i ) {
110 sizes[i] = *it;
111 }
112 }
114 if ( numEntries < 1 )
115 {
116 numEntries = 5;
117 sizes = new int[numEntries];
118 sizes[0] = 16;
119 sizes[1] = 24;
120 sizes[2] = 32;
121 sizes[3] = 48;
122 sizes[4] = 128;
123 }
125 pixMem = new guchar*[numEntries];
126 images = new Gtk::Image*[numEntries];
127 labels = new Glib::ustring*[numEntries];
128 buttons = new Gtk::ToggleToolButton*[numEntries];
131 for ( int i = 0; i < numEntries; i++ ) {
132 char *label = g_strdup_printf(_("%d x %d"), sizes[i], sizes[i]);
133 labels[i] = new Glib::ustring(label);
134 g_free(label);
135 pixMem[i] = 0;
136 images[i] = 0;
137 }
140 magLabel.set_label( *labels[hot] );
142 Gtk::VBox* magBox = new Gtk::VBox();
144 magBox->pack_start( magnified );
145 magBox->pack_start( magLabel, Gtk::PACK_SHRINK );
148 Gtk::VBox * verts = new Gtk::VBox();
149 for ( int i = 0; i < numEntries; i++ ) {
150 pixMem[i] = new guchar[4 * sizes[i] * sizes[i]];
151 memset( pixMem[i], 0x00, 4 * sizes[i] * sizes[i] );
153 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 );
154 GtkImage* img = GTK_IMAGE( gtk_image_new_from_pixbuf( pb ) );
155 images[i] = Glib::wrap(img);
156 Glib::ustring label(*labels[i]);
157 buttons[i] = new Gtk::ToggleToolButton(label);
158 buttons[i]->set_active( i == hot );
159 buttons[i]->set_icon_widget(*images[i]);
161 tips.set_tip((*buttons[i]), label);
163 buttons[i]->signal_clicked().connect( sigc::bind<int>( sigc::mem_fun(*this, &IconPreviewPanel::on_button_clicked), i) );
166 verts->add(*buttons[i]);
167 }
169 iconBox.pack_start(splitter);
170 splitter.pack1( *magBox, true, true );
171 splitter.pack2( *verts, false, false );
174 //## The Refresh button
177 Gtk::HButtonBox* holder = new Gtk::HButtonBox( Gtk::BUTTONBOX_END );
178 _getContents()->pack_end(*holder, false, false);
180 selectionButton = new Gtk::ToggleButton(_("Selection")); // , GTK_RESPONSE_APPLY
181 holder->pack_start( *selectionButton, false, false );
182 tips.set_tip((*selectionButton), _("Selection only or whole document"));
183 selectionButton->signal_clicked().connect( sigc::mem_fun(*this, &IconPreviewPanel::modeToggled) );
185 gint val = prefs->getBool("/iconpreview/selectionOnly");
186 selectionButton->set_active( val != 0 );
188 refreshButton = new Gtk::Button(Gtk::Stock::REFRESH); // , GTK_RESPONSE_APPLY
189 holder->pack_end( *refreshButton, false, false );
190 tips.set_tip((*refreshButton), _("Refresh the icons"));
191 refreshButton->signal_clicked().connect( sigc::mem_fun(*this, &IconPreviewPanel::refreshPreview) );
194 _getContents()->pack_start(iconBox, Gtk::PACK_EXPAND_WIDGET);
196 show_all_children();
197 }
199 //#########################################################################
200 //## M E T H O D S
201 //#########################################################################
204 void IconPreviewPanel::refreshPreview()
205 {
206 SPDesktop *desktop = getDesktop();
207 if ( desktop ) {
209 if ( selectionButton && selectionButton->get_active() )
210 {
211 Inkscape::Selection * sel = sp_desktop_selection(desktop);
212 if ( sel ) {
213 //g_message("found a selection to play with");
215 GSList const *items = sel->itemList();
216 SPObject *target = 0;
217 while ( items && !target ) {
218 SPItem* item = SP_ITEM( items->data );
219 SPObject * obj = SP_OBJECT(item);
220 gchar const *id = SP_OBJECT_ID( obj );
221 if ( id ) {
222 target = obj;
223 }
225 items = g_slist_next(items);
226 }
227 if ( target ) {
228 renderPreview(target);
229 }
230 }
231 }
232 else
233 {
234 SPObject *target = desktop->currentRoot();
235 if ( target ) {
236 renderPreview(target);
237 }
238 }
239 }
240 }
242 void IconPreviewPanel::modeToggled()
243 {
244 Inkscape::Preferences *prefs = Inkscape::Preferences::get();
245 prefs->setBool("/iconpreview/selectionOnly", (selectionButton && selectionButton->get_active()));
247 refreshPreview();
248 }
250 void IconPreviewPanel::renderPreview( SPObject* obj )
251 {
252 SPDocument * doc = SP_OBJECT_DOCUMENT(obj);
253 gchar * id = SP_OBJECT_ID(obj);
255 // g_message(" setting up to render '%s' as the icon", id );
257 NRArenaItem *root = NULL;
259 /* Create new arena */
260 NRArena *arena = NRArena::create();
262 /* Create ArenaItem and set transform */
263 unsigned int visionkey = sp_item_display_key_new(1);
265 root = sp_item_invoke_show ( SP_ITEM( SP_DOCUMENT_ROOT(doc) ),
266 arena, visionkey, SP_ITEM_SHOW_DISPLAY );
268 for ( int i = 0; i < numEntries; i++ ) {
269 guchar * px = sp_icon_doc_icon( doc, root, id, sizes[i] );
270 // g_message( " size %d %s", sizes[i], (px ? "worked" : "failed") );
271 if ( px ) {
272 memcpy( pixMem[i], px, sizes[i] * sizes[i] * 4 );
273 g_free( px );
274 px = 0;
275 } else {
276 memset( pixMem[i], 0, sizes[i] * sizes[i] * 4 );
277 }
278 images[i]->queue_draw();
279 }
280 updateMagnify();
282 sp_item_invoke_hide(SP_ITEM(sp_document_root(doc)), visionkey);
283 nr_object_unref((NRObject *) arena);
284 }
286 void IconPreviewPanel::updateMagnify()
287 {
288 Glib::RefPtr<Gdk::Pixbuf> buf = images[hot]->get_pixbuf()->scale_simple( 128, 128, Gdk::INTERP_NEAREST );
289 magLabel.set_label( *labels[hot] );
290 magnified.set( buf );
291 magnified.queue_draw();
292 magnified.get_parent()->queue_draw();
293 }
296 } //namespace Dialogs
297 } //namespace UI
298 } //namespace Inkscape
300 /*
301 Local Variables:
302 mode:c++
303 c-file-style:"stroustrup"
304 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
305 indent-tabs-mode:nil
306 fill-column:99
307 End:
308 */
309 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :