9ede6f27e02adef4a0ecbbd544167a7c26335050
1 #define __SP_DESKTOP_WIDGET_C__
3 /** \file
4 * Desktop widget implementation
5 *
6 * Authors:
7 * Lauris Kaplinski <lauris@kaplinski.com>
8 * MenTaLguY <mental@rydia.net>
9 * bulia byak <buliabyak@users.sf.net>
10 * Ralf Stephan <ralf@ark.in-berlin.de>
11 * John Bintz <jcoswell@coswellproductions.org>
12 *
13 * Copyright (C) 2006 John Bintz
14 * Copyright (C) 2004 MenTaLguY
15 * Copyright (C) 1999-2002 Lauris Kaplinski
16 * Copyright (C) 2000-2001 Ximian, Inc.
17 *
18 * Released under GNU GPL, read the file 'COPYING' for more information
19 */
21 #ifdef HAVE_CONFIG_H
22 # include "config.h"
23 #endif
25 #include <gtkmm/paned.h>
26 #include <gtk/gtk.h>
28 #include "macros.h"
29 #include "inkscape-private.h"
30 #include "desktop-handles.h"
31 #include "desktop-events.h"
32 #include "document.h"
33 #include "desktop-widget.h"
34 #include "sp-namedview.h"
35 #include "interface.h"
36 #include "toolbox.h"
37 #include "prefs-utils.h"
38 #include "file.h"
39 #include "display/canvas-arena.h"
40 #include <extension/db.h>
41 #include "helper/units.h"
42 #include "widgets/button.h"
43 #include "widgets/ruler.h"
44 #include "widgets/widget-sizes.h"
45 #include "widgets/spw-utilities.h"
46 #include "widgets/spinbutton-events.h"
47 #include "widgets/layer-selector.h"
48 #include "ui/widget/selected-style.h"
49 #include "sp-item.h"
50 #include "dialogs/swatches.h"
51 #include "conn-avoid-ref.h"
53 #ifdef WITH_INKBOARD
54 #endif
58 enum {
59 ACTIVATE,
60 DEACTIVATE,
61 MODIFIED,
62 EVENT_CONTEXT_CHANGED,
63 LAST_SIGNAL
64 };
67 //---------------------------------------------------------------------
68 /* SPDesktopWidget */
70 static void sp_desktop_widget_class_init (SPDesktopWidgetClass *klass);
71 static void sp_desktop_widget_init (SPDesktopWidget *widget);
72 static void sp_desktop_widget_destroy (GtkObject *object);
74 static void sp_desktop_widget_size_allocate (GtkWidget *widget, GtkAllocation *allocation);
75 static void sp_desktop_widget_realize (GtkWidget *widget);
77 static gint sp_desktop_widget_event (GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw);
81 static void sp_desktop_widget_adjustment_value_changed (GtkAdjustment *adj, SPDesktopWidget *dtw);
82 static void sp_desktop_widget_namedview_modified (SPObject *obj, guint flags, SPDesktopWidget *dtw);
84 static gdouble sp_dtw_zoom_value_to_display (gdouble value);
85 static gdouble sp_dtw_zoom_display_to_value (gdouble value);
86 static gint sp_dtw_zoom_input (GtkSpinButton *spin, gdouble *new_val, gpointer data);
87 static bool sp_dtw_zoom_output (GtkSpinButton *spin, gpointer data);
88 static void sp_dtw_zoom_value_changed (GtkSpinButton *spin, gpointer data);
89 static void sp_dtw_zoom_populate_popup (GtkEntry *entry, GtkMenu *menu, gpointer data);
90 static void sp_dtw_zoom_menu_handler (SPDesktop *dt, gdouble factor);
91 static void sp_dtw_zoom_50 (GtkMenuItem *item, gpointer data);
92 static void sp_dtw_zoom_100 (GtkMenuItem *item, gpointer data);
93 static void sp_dtw_zoom_200 (GtkMenuItem *item, gpointer data);
94 static void sp_dtw_zoom_page (GtkMenuItem *item, gpointer data);
95 static void sp_dtw_zoom_drawing (GtkMenuItem *item, gpointer data);
96 static void sp_dtw_zoom_selection (GtkMenuItem *item, gpointer data);
98 SPViewWidgetClass *dtw_parent_class;
100 void
101 SPDesktopWidget::setMessage (Inkscape::MessageType type, const gchar *message)
102 {
103 GtkLabel *sb=GTK_LABEL(this->select_status);
104 gtk_label_set_markup (sb, message ? message : "");
105 // FIXME: TODO: remove <b></b> before displaying as tooltip
106 gtk_tooltips_set_tip (this->tt, this->select_status_eventbox, message ? message : "", NULL);
107 }
109 NR::Point
110 SPDesktopWidget::window_get_pointer()
111 {
112 gint x,y;
113 gdk_window_get_pointer (GTK_WIDGET (canvas)->window, &x, &y, NULL);
114 return NR::Point(x,y);
115 }
117 /**
118 * Registers SPDesktopWidget class and returns its type number.
119 */
120 GtkType
121 sp_desktop_widget_get_type (void)
122 {
123 static GtkType type = 0;
124 if (!type) {
125 static const GtkTypeInfo info = {
126 "SPDesktopWidget",
127 sizeof (SPDesktopWidget),
128 sizeof (SPDesktopWidgetClass),
129 (GtkClassInitFunc) sp_desktop_widget_class_init,
130 (GtkObjectInitFunc) sp_desktop_widget_init,
131 NULL, NULL, NULL
132 };
133 type = gtk_type_unique (SP_TYPE_VIEW_WIDGET, &info);
134 }
135 return type;
136 }
138 /**
139 * SPDesktopWidget vtable initialization
140 */
141 static void
142 sp_desktop_widget_class_init (SPDesktopWidgetClass *klass)
143 {
144 dtw_parent_class = (SPViewWidgetClass*)gtk_type_class (SP_TYPE_VIEW_WIDGET);
146 GtkObjectClass *object_class = (GtkObjectClass *) klass;
147 GtkWidgetClass *widget_class = (GtkWidgetClass *) klass;
149 object_class->destroy = sp_desktop_widget_destroy;
151 widget_class->size_allocate = sp_desktop_widget_size_allocate;
152 widget_class->realize = sp_desktop_widget_realize;
153 }
155 /**
156 * Callback for SPDesktopWidget object initialization.
157 */
158 static void
159 sp_desktop_widget_init (SPDesktopWidget *dtw)
160 {
161 GtkWidget *widget;
162 GtkWidget *tbl;
164 GtkWidget *hbox;
165 GtkWidget *eventbox;
166 GtkStyle *style;
168 new (&dtw->modified_connection) sigc::connection();
170 widget = GTK_WIDGET (dtw);
172 dtw->window = 0;
174 dtw->desktop = NULL;
176 dtw->_interaction_disabled_counter = 0;
178 dtw->tt = gtk_tooltips_new ();
180 /* Main table */
181 dtw->vbox = gtk_vbox_new (FALSE, 0);
182 gtk_container_add( GTK_CONTAINER(dtw), GTK_WIDGET(dtw->vbox) );
184 dtw->statusbar = gtk_hbox_new (FALSE, 0);
185 //gtk_widget_set_usize (dtw->statusbar, -1, BOTTOM_BAR_HEIGHT);
186 gtk_box_pack_end (GTK_BOX (dtw->vbox), dtw->statusbar, FALSE, TRUE, 0);
188 {
189 using Inkscape::UI::Dialogs::SwatchesPanel;
191 SwatchesPanel* swatches = new SwatchesPanel("embedded.swatches");
192 swatches->setOrientation( Gtk::ANCHOR_SOUTH );
193 dtw->panels = GTK_WIDGET(swatches->gobj());
194 gtk_box_pack_end( GTK_BOX( dtw->vbox ), dtw->panels, FALSE, TRUE, 0 );
195 }
197 hbox = gtk_hbox_new (FALSE, 0);
198 gtk_box_pack_end (GTK_BOX (dtw->vbox), hbox, TRUE, TRUE, 0);
199 gtk_widget_show (hbox);
201 dtw->aux_toolbox = sp_aux_toolbox_new ();
202 gtk_box_pack_end (GTK_BOX (dtw->vbox), dtw->aux_toolbox, FALSE, TRUE, 0);
204 dtw->commands_toolbox = sp_commands_toolbox_new ();
205 gtk_box_pack_end (GTK_BOX (dtw->vbox), dtw->commands_toolbox, FALSE, TRUE, 0);
207 dtw->tool_toolbox = sp_tool_toolbox_new ();
208 gtk_box_pack_start (GTK_BOX (hbox), dtw->tool_toolbox, FALSE, TRUE, 0);
210 tbl = gtk_table_new (4, 3, FALSE);
211 gtk_box_pack_start (GTK_BOX (hbox), tbl, TRUE, TRUE, 1);
213 /* Horizontal ruler */
214 eventbox = gtk_event_box_new ();
215 dtw->hruler = sp_hruler_new ();
216 dtw->hruler_box = eventbox;
217 sp_ruler_set_metric (GTK_RULER (dtw->hruler), SP_PT);
218 gtk_tooltips_set_tip (dtw->tt, dtw->hruler_box, gettext(sp_unit_get_plural (&sp_unit_get_by_id(SP_UNIT_PT))), NULL);
219 gtk_container_add (GTK_CONTAINER (eventbox), dtw->hruler);
220 gtk_table_attach (GTK_TABLE (tbl), eventbox, 1, 2, 0, 1, (GtkAttachOptions)(GTK_FILL), (GtkAttachOptions)(GTK_FILL), widget->style->xthickness, 0);
221 g_signal_connect (G_OBJECT (eventbox), "button_press_event", G_CALLBACK (sp_dt_hruler_event), dtw);
222 g_signal_connect (G_OBJECT (eventbox), "button_release_event", G_CALLBACK (sp_dt_hruler_event), dtw);
223 g_signal_connect (G_OBJECT (eventbox), "motion_notify_event", G_CALLBACK (sp_dt_hruler_event), dtw);
225 /* Vertical ruler */
226 eventbox = gtk_event_box_new ();
227 dtw->vruler = sp_vruler_new ();
228 dtw->vruler_box = eventbox;
229 sp_ruler_set_metric (GTK_RULER (dtw->vruler), SP_PT);
230 gtk_tooltips_set_tip (dtw->tt, dtw->vruler_box, gettext(sp_unit_get_plural (&sp_unit_get_by_id(SP_UNIT_PT))), NULL);
231 gtk_container_add (GTK_CONTAINER (eventbox), GTK_WIDGET (dtw->vruler));
232 gtk_table_attach (GTK_TABLE (tbl), eventbox, 0, 1, 1, 2, (GtkAttachOptions)(GTK_FILL), (GtkAttachOptions)(GTK_FILL), 0, widget->style->ythickness);
233 g_signal_connect (G_OBJECT (eventbox), "button_press_event", G_CALLBACK (sp_dt_vruler_event), dtw);
234 g_signal_connect (G_OBJECT (eventbox), "button_release_event", G_CALLBACK (sp_dt_vruler_event), dtw);
235 g_signal_connect (G_OBJECT (eventbox), "motion_notify_event", G_CALLBACK (sp_dt_vruler_event), dtw);
237 /* Horizontal scrollbar */
238 dtw->hadj = (GtkAdjustment *) gtk_adjustment_new (0.0, -4000.0, 4000.0, 10.0, 100.0, 4.0);
239 dtw->hscrollbar = gtk_hscrollbar_new (GTK_ADJUSTMENT (dtw->hadj));
240 gtk_table_attach (GTK_TABLE (tbl), dtw->hscrollbar, 1, 2, 2, 3, (GtkAttachOptions)(GTK_EXPAND | GTK_FILL), (GtkAttachOptions)(GTK_FILL), 0, 0);
241 /* Vertical scrollbar and the sticky zoom button */
242 dtw->vscrollbar_box = gtk_vbox_new (FALSE, 0);
243 dtw->sticky_zoom = sp_button_new_from_data ( Inkscape::ICON_SIZE_DECORATION,
244 SP_BUTTON_TYPE_TOGGLE,
245 NULL,
246 "sticky_zoom",
247 _("Zoom drawing if window size changes"),
248 dtw->tt);
249 gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (dtw->sticky_zoom), prefs_get_int_attribute ("options.stickyzoom", "value", 0));
250 gtk_box_pack_start (GTK_BOX (dtw->vscrollbar_box), dtw->sticky_zoom, FALSE, FALSE, 0);
251 dtw->vadj = (GtkAdjustment *) gtk_adjustment_new (0.0, -4000.0, 4000.0, 10.0, 100.0, 4.0);
252 dtw->vscrollbar = gtk_vscrollbar_new (GTK_ADJUSTMENT (dtw->vadj));
253 gtk_box_pack_start (GTK_BOX (dtw->vscrollbar_box), dtw->vscrollbar, TRUE, TRUE, 0);
254 gtk_table_attach (GTK_TABLE (tbl), dtw->vscrollbar_box, 2, 3, 0, 2, (GtkAttachOptions)(GTK_FILL), (GtkAttachOptions)(GTK_EXPAND | GTK_FILL), 0, 0);
256 /* Canvas */
257 dtw->canvas = SP_CANVAS (sp_canvas_new_aa ());
258 GTK_WIDGET_SET_FLAGS (GTK_WIDGET (dtw->canvas), GTK_CAN_FOCUS);
259 style = gtk_style_copy (GTK_WIDGET (dtw->canvas)->style);
260 style->bg[GTK_STATE_NORMAL] = style->white;
261 gtk_widget_set_style (GTK_WIDGET (dtw->canvas), style);
262 gtk_widget_set_extension_events(GTK_WIDGET (dtw->canvas) , GDK_EXTENSION_EVENTS_ALL);
263 g_signal_connect (G_OBJECT (dtw->canvas), "event", G_CALLBACK (sp_desktop_widget_event), dtw);
264 gtk_table_attach (GTK_TABLE (tbl), GTK_WIDGET (dtw->canvas), 1, 2, 1, 2, (GtkAttachOptions)(GTK_EXPAND | GTK_FILL), (GtkAttachOptions)(GTK_EXPAND | GTK_FILL), 0, 0);
266 dtw->selected_style = new Inkscape::UI::Widget::SelectedStyle(true);
267 GtkHBox *ss_ = dtw->selected_style->gobj();
268 gtk_box_pack_start (GTK_BOX (dtw->statusbar), GTK_WIDGET(ss_), FALSE, FALSE, 0);
269 gtk_box_pack_start (GTK_BOX (dtw->statusbar), gtk_vseparator_new(), FALSE, FALSE, 0);
271 // connect scrollbar signals
272 g_signal_connect (G_OBJECT (dtw->hadj), "value-changed", G_CALLBACK (sp_desktop_widget_adjustment_value_changed), dtw);
273 g_signal_connect (G_OBJECT (dtw->vadj), "value-changed", G_CALLBACK (sp_desktop_widget_adjustment_value_changed), dtw);
275 GtkWidget *statusbar_tail=gtk_statusbar_new();
276 gtk_statusbar_set_has_resize_grip(GTK_STATUSBAR(statusbar_tail), TRUE);
277 gtk_box_pack_end (GTK_BOX (dtw->statusbar), statusbar_tail, FALSE, FALSE, 0);
279 // zoom status spinbutton
280 dtw->zoom_status = gtk_spin_button_new_with_range (log(SP_DESKTOP_ZOOM_MIN)/log(2), log(SP_DESKTOP_ZOOM_MAX)/log(2), 0.1);
281 gtk_tooltips_set_tip (dtw->tt, dtw->zoom_status, _("Zoom"), NULL);
282 gtk_widget_set_size_request (dtw->zoom_status, STATUS_ZOOM_WIDTH, -1);
283 gtk_entry_set_width_chars (GTK_ENTRY (dtw->zoom_status), 6);
284 gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (dtw->zoom_status), FALSE);
285 gtk_spin_button_set_update_policy (GTK_SPIN_BUTTON (dtw->zoom_status), GTK_UPDATE_ALWAYS);
286 g_signal_connect (G_OBJECT (dtw->zoom_status), "input", G_CALLBACK (sp_dtw_zoom_input), dtw);
287 g_signal_connect (G_OBJECT (dtw->zoom_status), "output", G_CALLBACK (sp_dtw_zoom_output), dtw);
288 gtk_object_set_data (GTK_OBJECT (dtw->zoom_status), "dtw", dtw->canvas);
289 gtk_signal_connect (GTK_OBJECT (dtw->zoom_status), "focus-in-event", GTK_SIGNAL_FUNC (spinbutton_focus_in), dtw->zoom_status);
290 gtk_signal_connect (GTK_OBJECT (dtw->zoom_status), "key-press-event", GTK_SIGNAL_FUNC (spinbutton_keypress), dtw->zoom_status);
291 dtw->zoom_update = g_signal_connect (G_OBJECT (dtw->zoom_status), "value_changed", G_CALLBACK (sp_dtw_zoom_value_changed), dtw);
292 dtw->zoom_update = g_signal_connect (G_OBJECT (dtw->zoom_status), "populate_popup", G_CALLBACK (sp_dtw_zoom_populate_popup), dtw);
294 // cursor coordinates
295 dtw->coord_status = gtk_table_new (5, 2, FALSE);
296 gtk_table_set_row_spacings(GTK_TABLE(dtw->coord_status), 0);
297 gtk_table_set_col_spacings(GTK_TABLE(dtw->coord_status), 2);
298 gtk_table_attach(GTK_TABLE(dtw->coord_status), gtk_vseparator_new(), 0,1, 0,2, GTK_FILL, GTK_FILL, 0, 0);
299 eventbox = gtk_event_box_new ();
300 gtk_container_add (GTK_CONTAINER (eventbox), dtw->coord_status);
301 gtk_tooltips_set_tip (dtw->tt, eventbox, _("Cursor coordinates"), NULL);
302 GtkWidget *label_x = gtk_label_new("X:");
303 gtk_misc_set_alignment (GTK_MISC(label_x), 0.0, 0.5);
304 gtk_table_attach(GTK_TABLE(dtw->coord_status), label_x, 1,2, 0,1, GTK_FILL, GTK_FILL, 0, 0);
305 GtkWidget *label_y = gtk_label_new("Y:");
306 gtk_misc_set_alignment (GTK_MISC(label_y), 0.0, 0.5);
307 gtk_table_attach(GTK_TABLE(dtw->coord_status), label_y, 1,2, 1,2, GTK_FILL, GTK_FILL, 0, 0);
308 dtw->coord_status_x = gtk_label_new("0.0");
309 gtk_misc_set_alignment (GTK_MISC(dtw->coord_status_x), 0.0, 0.5);
310 dtw->coord_status_y = gtk_label_new("0.0");
311 gtk_misc_set_alignment (GTK_MISC(dtw->coord_status_y), 0.0, 0.5);
312 gtk_table_attach(GTK_TABLE(dtw->coord_status), dtw->coord_status_x, 2,3, 0,1, GTK_FILL, GTK_FILL, 0, 0);
313 gtk_table_attach(GTK_TABLE(dtw->coord_status), dtw->coord_status_y, 2,3, 1,2, GTK_FILL, GTK_FILL, 0, 0);
314 gtk_table_attach(GTK_TABLE(dtw->coord_status), gtk_label_new("Z:"), 3,4, 0,2, GTK_FILL, GTK_FILL, 0, 0);
315 gtk_table_attach(GTK_TABLE(dtw->coord_status), dtw->zoom_status, 4,5, 0,2, GTK_FILL, GTK_FILL, 0, 0);
316 sp_set_font_size_smaller (dtw->coord_status);
317 gtk_box_pack_end (GTK_BOX (statusbar_tail), eventbox, FALSE, FALSE, 1);
319 dtw->layer_selector = new Inkscape::Widgets::LayerSelector(NULL);
320 // FIXME: need to unreference on container destruction to avoid leak
321 dtw->layer_selector->reference();
322 //dtw->layer_selector->set_size_request(-1, SP_ICON_SIZE_BUTTON);
323 gtk_box_pack_start(GTK_BOX(dtw->statusbar), GTK_WIDGET(dtw->layer_selector->gobj()), FALSE, FALSE, 1);
325 dtw->select_status_eventbox = gtk_event_box_new ();
326 dtw->select_status = gtk_label_new (NULL);
327 #if GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 6
328 gtk_label_set_ellipsize (GTK_LABEL(dtw->select_status), PANGO_ELLIPSIZE_END);
329 #endif
330 gtk_misc_set_alignment (GTK_MISC (dtw->select_status), 0.0, 0.5);
331 gtk_widget_set_size_request (dtw->select_status, 1, -1);
332 // display the initial welcome message in the statusbar
333 gtk_label_set_markup (GTK_LABEL (dtw->select_status), _("<b>Welcome to Inkscape!</b> Use shape or freehand tools to create objects; use selector (arrow) to move or transform them."));
334 // space label 2 pixels from left edge
335 gtk_container_add (GTK_CONTAINER (dtw->select_status_eventbox), dtw->select_status);
336 gtk_box_pack_start (GTK_BOX (dtw->statusbar), gtk_hbox_new(FALSE, 0), FALSE, FALSE, 2);
337 gtk_box_pack_start (GTK_BOX (dtw->statusbar), dtw->select_status_eventbox, TRUE, TRUE, 0);
339 gtk_widget_show_all (dtw->vbox);
340 }
342 /**
343 * Called before SPDesktopWidget destruction.
344 */
345 static void
346 sp_desktop_widget_destroy (GtkObject *object)
347 {
348 SPDesktopWidget *dtw = SP_DESKTOP_WIDGET (object);
350 if (dtw->desktop) {
351 dtw->layer_selector->unreference();
352 inkscape_remove_desktop (dtw->desktop); // clears selection too
353 dtw->modified_connection.disconnect();
354 dtw->desktop->destroy();
355 Inkscape::GC::release (dtw->desktop);
356 dtw->desktop = NULL;
357 }
359 dtw->modified_connection.~connection();
361 if (GTK_OBJECT_CLASS (dtw_parent_class)->destroy) {
362 (* GTK_OBJECT_CLASS (dtw_parent_class)->destroy) (object);
363 }
364 }
367 /**
368 * Set the title in the desktop-window (if desktop has an own window).
369 *
370 * The title has form file name: desktop number - Inkscape.
371 * The desktop number is only shown if it's 2 or higher,
372 */
373 void
374 SPDesktopWidget::updateTitle(gchar const* uri)
375 {
376 GtkWindow *window = GTK_WINDOW (gtk_object_get_data (GTK_OBJECT(this), "window"));
377 if (window) {
378 gchar const *fname = ( TRUE
379 ? uri
380 : g_basename(uri) );
381 GString *name = g_string_new ("");
382 if (this->desktop->number > 1) {
383 g_string_printf (name, _("%s: %d - Inkscape"), fname, this->desktop->number);
384 } else {
385 g_string_printf (name, _("%s - Inkscape"), fname);
386 }
387 gtk_window_set_title (window, name->str);
388 g_string_free (name, TRUE);
389 }
390 }
392 /**
393 * Callback to allocate space for desktop widget.
394 */
395 static void
396 sp_desktop_widget_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
397 {
398 SPDesktopWidget *dtw = SP_DESKTOP_WIDGET (widget);
400 if ((allocation->x == widget->allocation.x) &&
401 (allocation->y == widget->allocation.y) &&
402 (allocation->width == widget->allocation.width) &&
403 (allocation->height == widget->allocation.height)) {
404 if (GTK_WIDGET_CLASS (dtw_parent_class)->size_allocate)
405 GTK_WIDGET_CLASS (dtw_parent_class)->size_allocate (widget, allocation);
406 return;
407 }
409 if (GTK_WIDGET_REALIZED (widget)) {
410 NR::Rect const area = dtw->desktop->get_display_area();
411 double zoom = dtw->desktop->current_zoom();
413 if (GTK_WIDGET_CLASS(dtw_parent_class)->size_allocate) {
414 GTK_WIDGET_CLASS(dtw_parent_class)->size_allocate (widget, allocation);
415 }
417 if (SP_BUTTON_IS_DOWN(dtw->sticky_zoom)) {
418 /* Calculate zoom per pixel */
419 double const zpsp = zoom / hypot (area.dimensions()[NR::X], area.dimensions()[NR::Y]);
420 /* Find new visible area */
421 NR::Rect newarea = dtw->desktop->get_display_area();
422 /* Calculate adjusted zoom */
423 zoom = zpsp * hypot(newarea.dimensions()[NR::X], newarea.dimensions()[NR::Y]);
424 dtw->desktop->zoom_absolute(newarea.midpoint()[NR::X], newarea.midpoint()[NR::Y], zoom);
425 } else {
426 dtw->desktop->zoom_absolute(area.midpoint()[NR::X], area.midpoint()[NR::Y], zoom);
427 }
429 } else {
430 if (GTK_WIDGET_CLASS (dtw_parent_class)->size_allocate) {
431 GTK_WIDGET_CLASS (dtw_parent_class)->size_allocate (widget, allocation);
432 }
433 // this->size_allocate (widget, allocation);
434 }
435 }
437 /**
438 * Callback to realize desktop widget.
439 */
440 static void
441 sp_desktop_widget_realize (GtkWidget *widget)
442 {
444 SPDesktopWidget *dtw = SP_DESKTOP_WIDGET (widget);
446 if (GTK_WIDGET_CLASS (dtw_parent_class)->realize)
447 (* GTK_WIDGET_CLASS (dtw_parent_class)->realize) (widget);
449 NRRect d;
450 d.x0 = 0.0;
451 d.y0 = 0.0;
452 d.x1 = sp_document_width (dtw->desktop->doc());
453 d.y1 = sp_document_height (dtw->desktop->doc());
455 if ((fabs (d.x1 - d.x0) < 1.0) || (fabs (d.y1 - d.y0) < 1.0)) return;
457 dtw->desktop->set_display_area (d.x0, d.y0, d.x1, d.y1, 10);
459 /* Listen on namedview modification */
460 // originally (prior to the sigc++ conversion) the signal was simply
461 // connected twice rather than disconnecting the first connection
462 dtw->modified_connection.disconnect();
463 dtw->modified_connection = dtw->desktop->namedview->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_desktop_widget_namedview_modified), dtw));
464 sp_desktop_widget_namedview_modified (dtw->desktop->namedview, SP_OBJECT_MODIFIED_FLAG, dtw);
466 dtw->updateTitle(SP_DOCUMENT_NAME (dtw->desktop->doc()));
467 }
469 /**
470 * Callback to handle desktop widget event.
471 */
472 static gint
473 sp_desktop_widget_event (GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw)
474 {
475 if (event->type == GDK_BUTTON_PRESS) {
476 // defocus any spinbuttons
477 gtk_widget_grab_focus (GTK_WIDGET(dtw->canvas));
478 }
480 if ((event->type == GDK_BUTTON_PRESS) && (event->button.button == 3)) {
481 if (event->button.state & GDK_SHIFT_MASK) {
482 sp_canvas_arena_set_sticky (SP_CANVAS_ARENA (dtw->desktop->drawing), TRUE);
483 } else {
484 sp_canvas_arena_set_sticky (SP_CANVAS_ARENA (dtw->desktop->drawing), FALSE);
485 }
486 }
488 if (GTK_WIDGET_CLASS (dtw_parent_class)->event) {
489 return (* GTK_WIDGET_CLASS (dtw_parent_class)->event) (widget, event);
490 } else {
491 // The keypress events need to be passed to desktop handler explicitly,
492 // because otherwise the event contexts only receive keypresses when the mouse cursor
493 // is over the canvas. This redirection is only done for keypresses and only if there's no
494 // current item on the canvas, because item events and all mouse events are caught
495 // and passed on by the canvas acetate (I think). --bb
496 if (event->type == GDK_KEY_PRESS && !dtw->canvas->current_item) {
497 return sp_desktop_root_handler (NULL, event, dtw->desktop);
498 }
499 }
501 return FALSE;
502 }
504 void
505 sp_dtw_desktop_activate (SPDesktopWidget *dtw)
506 {
507 /* update active desktop indicator */
508 }
510 void
511 sp_dtw_desktop_deactivate (SPDesktopWidget *dtw)
512 {
513 /* update inactive desktop indicator */
514 }
516 /**
517 * Shuts down the desktop object for the view being closed. It checks
518 * to see if the document has been edited, and if so prompts the user
519 * to save, discard, or cancel. Returns TRUE if the shutdown operation
520 * is cancelled or if the save is cancelled or fails, FALSE otherwise.
521 */
522 bool
523 SPDesktopWidget::shutdown()
524 {
525 g_assert(desktop != NULL);
526 if (inkscape_is_sole_desktop_for_document(*desktop)) {
527 SPDocument *doc = desktop->doc();
528 if (sp_document_repr_root(doc)->attribute("sodipodi:modified") != NULL) {
529 GtkWidget *dialog;
531 dialog = gtk_message_dialog_new(
532 GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this))),
533 GTK_DIALOG_DESTROY_WITH_PARENT,
534 GTK_MESSAGE_WARNING,
535 GTK_BUTTONS_NONE,
536 "Document modified");
538 gchar *markup;
539 /** \todo
540 * FIXME !!! obviously this will have problems if the document
541 * name contains markup characters
542 */
543 markup = g_strdup_printf(
544 _("<span weight=\"bold\" size=\"larger\">Save changes to document \"%s\" before closing?</span>\n\n"
545 "If you close without saving, your changes will be discarded."),
546 SP_DOCUMENT_NAME(doc));
548 /** \todo
549 * FIXME !!! Gtk 2.3+ gives us gtk_message_dialog_set_markup()
550 * (and actually even
551 * gtk_message_dialog_new_with_markup(..., format, ...)!) --
552 * until then, we will have to be a little bit evil here and
553 * poke at GtkMessageDialog::label, which is private...
554 */
556 gtk_label_set_markup(GTK_LABEL(GTK_MESSAGE_DIALOG(dialog)->label), markup);
557 g_free(markup);
559 GtkWidget *close_button;
560 close_button = gtk_button_new_with_mnemonic(_("Close _without saving"));
561 gtk_widget_show(close_button);
562 gtk_dialog_add_action_widget(GTK_DIALOG(dialog), close_button, GTK_RESPONSE_NO);
564 gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);
565 gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_SAVE, GTK_RESPONSE_YES);
566 gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_YES);
568 gint response;
569 response = gtk_dialog_run(GTK_DIALOG(dialog));
570 gtk_widget_destroy(dialog);
572 switch (response) {
573 case GTK_RESPONSE_YES:
574 sp_document_ref(doc);
575 if (sp_file_save_document(doc)) {
576 sp_document_unref(doc);
577 } else { // save dialog cancelled or save failed
578 sp_document_unref(doc);
579 return TRUE;
580 }
581 break;
582 case GTK_RESPONSE_NO:
583 break;
584 default: // cancel pressed, or dialog was closed
585 return TRUE;
586 break;
587 }
588 }
589 /* Code to check data loss */
590 bool allow_data_loss = FALSE;
591 while (sp_document_repr_root(doc)->attribute("inkscape:dataloss") != NULL && allow_data_loss == FALSE) {
592 GtkWidget *dialog;
594 dialog = gtk_message_dialog_new(
595 GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this))),
596 GTK_DIALOG_DESTROY_WITH_PARENT,
597 GTK_MESSAGE_WARNING,
598 GTK_BUTTONS_NONE,
599 "Document modified");
601 gchar *markup;
602 /** \todo
603 * FIXME !!! obviously this will have problems if the document
604 * name contains markup characters
605 */
606 markup = g_strdup_printf(
607 _("<span weight=\"bold\" size=\"larger\">The file \"%s\" was saved with a format (%s) that may cause data loss!</span>\n\n"
608 "Do you want to save this file in another format?"),
609 SP_DOCUMENT_NAME(doc),
610 Inkscape::Extension::db.get(sp_document_repr_root(doc)->attribute("inkscape:output_extension"))->get_name());
612 /** \todo
613 * FIXME !!! Gtk 2.3+ gives us gtk_message_dialog_set_markup()
614 * (and actually even
615 * gtk_message_dialog_new_with_markup(..., format, ...)!) --
616 * until then, we will have to be a little bit evil here and
617 * poke at GtkMessageDialog::label, which is private...
618 */
620 gtk_label_set_markup(GTK_LABEL(GTK_MESSAGE_DIALOG(dialog)->label), markup);
621 g_free(markup);
623 GtkWidget *close_button;
624 close_button = gtk_button_new_with_mnemonic(_("Close _without saving"));
625 gtk_widget_show(close_button);
626 gtk_dialog_add_action_widget(GTK_DIALOG(dialog), close_button, GTK_RESPONSE_NO);
628 gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);
629 gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_SAVE, GTK_RESPONSE_YES);
630 gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_YES);
632 gint response;
633 response = gtk_dialog_run(GTK_DIALOG(dialog));
634 gtk_widget_destroy(dialog);
636 switch (response) {
637 case GTK_RESPONSE_YES:
638 sp_document_ref(doc);
639 if (sp_file_save_dialog(doc)) {
640 sp_document_unref(doc);
641 } else { // save dialog cancelled or save failed
642 sp_document_unref(doc);
643 return TRUE;
644 }
645 break;
646 case GTK_RESPONSE_NO:
647 allow_data_loss = TRUE;
648 break;
649 default: // cancel pressed, or dialog was closed
650 return TRUE;
651 break;
652 }
653 }
654 }
656 return FALSE;
657 }
659 /**
660 * \pre this->desktop->main != 0
661 */
662 void
663 SPDesktopWidget::requestCanvasUpdate() {
664 gtk_widget_queue_draw (GTK_WIDGET (SP_CANVAS_ITEM (this->desktop->main)->canvas));
665 }
667 void
668 SPDesktopWidget::requestCanvasUpdateAndWait() {
669 requestCanvasUpdate();
671 while (gtk_events_pending())
672 gtk_main_iteration_do(FALSE);
674 }
676 void
677 SPDesktopWidget::enableInteraction()
678 {
679 g_return_if_fail(_interaction_disabled_counter > 0);
681 _interaction_disabled_counter--;
683 if (_interaction_disabled_counter == 0) {
684 gtk_widget_set_sensitive(GTK_WIDGET(this), TRUE);
685 }
686 }
688 void
689 SPDesktopWidget::disableInteraction()
690 {
691 if (_interaction_disabled_counter == 0) {
692 gtk_widget_set_sensitive(GTK_WIDGET(this), FALSE);
693 }
695 _interaction_disabled_counter++;
696 }
698 void
699 SPDesktopWidget::setCoordinateStatus(NR::Point p)
700 {
701 gchar *cstr;
702 cstr=g_strdup_printf("%6.2f", dt2r * p[NR::X]);
703 gtk_label_set_text (GTK_LABEL (this->coord_status_x), cstr);
704 g_free(cstr);
705 cstr=g_strdup_printf("%6.2f", dt2r * p[NR::Y]);
706 gtk_label_set_text (GTK_LABEL (this->coord_status_y), cstr);
707 g_free(cstr);
708 }
710 void
711 SPDesktopWidget::letZoomGrabFocus()
712 {
713 if (zoom_status)
714 gtk_widget_grab_focus (zoom_status);
715 }
717 void
718 SPDesktopWidget::getWindowGeometry (gint &x, gint &y, gint &w, gint &h)
719 {
720 GtkWindow *window = GTK_WINDOW (gtk_object_get_data (GTK_OBJECT(this), "window"));
721 if (window)
722 {
723 gtk_window_get_size (window, &w, &h);
724 gtk_window_get_position (window, &x, &y);
725 }
726 }
728 void
729 SPDesktopWidget::setWindowPosition (NR::Point p)
730 {
731 GtkWindow *window = GTK_WINDOW (gtk_object_get_data (GTK_OBJECT(this), "window"));
732 if (window)
733 {
734 gtk_window_move (window, gint(round(p[NR::X])), gint(round(p[NR::Y])));
735 }
736 }
738 void
739 SPDesktopWidget::setWindowSize (gint w, gint h)
740 {
741 GtkWindow *window = GTK_WINDOW (gtk_object_get_data (GTK_OBJECT(this), "window"));
742 if (window)
743 {
744 gtk_window_set_default_size (window, w, h);
745 gtk_window_reshow_with_initial_size (window);
746 }
747 }
749 /**
750 * \note transientizing does not work on windows; when you minimize a document
751 * and then open it back, only its transient emerges and you cannot access
752 * the document window.
753 */
754 void
755 SPDesktopWidget::setWindowTransient (void *p, int transient_policy)
756 {
757 #ifndef WIN32
758 GtkWindow *w =GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this)));
759 if (w)
760 {
761 gtk_window_set_transient_for (GTK_WINDOW(p), w);
763 /*
764 * This enables "aggressive" transientization,
765 * i.e. dialogs always emerging on top when you switch documents. Note
766 * however that this breaks "click to raise" policy of a window
767 * manager because the switched-to document will be raised at once
768 * (so that its transients also could raise)
769 */
770 if (transient_policy == 2)
772 // without this, a transient window not always emerges on top
773 gtk_window_present (w);
774 }
775 #endif
776 }
778 void
779 SPDesktopWidget::presentWindow()
780 {
781 GtkWindow *w =GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this)));
782 if (w)
783 gtk_window_present (w);
784 }
786 bool
787 SPDesktopWidget::warnDialog (gchar* text)
788 {
789 GtkWindow *w =GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this)));
790 if (w)
791 {
792 GtkWidget *dialog = gtk_message_dialog_new(
793 w,
794 GTK_DIALOG_DESTROY_WITH_PARENT,
795 GTK_MESSAGE_WARNING,
796 GTK_BUTTONS_YES_NO,
797 text);
798 gint response = gtk_dialog_run(GTK_DIALOG(dialog));
799 gtk_widget_destroy(dialog);
800 if (response == GTK_RESPONSE_YES)
801 return true;
802 }
803 return false;
804 }
806 void
807 sp_desktop_widget_fullscreen(SPDesktopWidget *dtw)
808 {
809 #ifdef HAVE_GTK_WINDOW_FULLSCREEN
810 GtkWindow *topw = GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(dtw->canvas)));
811 if (GTK_IS_WINDOW(topw)) {
812 if (dtw->desktop->is_fullscreen) {
813 dtw->desktop->is_fullscreen = FALSE;
814 gtk_window_unfullscreen(topw);
815 sp_desktop_widget_layout (dtw);
816 } else {
817 dtw->desktop->is_fullscreen = TRUE;
818 gtk_window_fullscreen(topw);
819 sp_desktop_widget_layout (dtw);
820 }
821 }
822 #endif /* HAVE_GTK_WINDOW_FULLSCREEN */
823 }
825 /**
826 * Hide whatever the user does not want to see in the window
827 */
828 void
829 sp_desktop_widget_layout (SPDesktopWidget *dtw)
830 {
831 bool fullscreen = dtw->desktop->is_fullscreen;
833 if (prefs_get_int_attribute (fullscreen ? "fullscreen.menu" : "window.menu", "state", 1) == 0) {
834 gtk_widget_hide_all (dtw->menubar);
835 } else {
836 gtk_widget_show_all (dtw->menubar);
837 }
839 if (prefs_get_int_attribute (fullscreen ? "fullscreen.commands" : "window.commands", "state", 1) == 0) {
840 gtk_widget_hide_all (dtw->commands_toolbox);
841 } else {
842 gtk_widget_show_all (dtw->commands_toolbox);
843 }
845 if (prefs_get_int_attribute (fullscreen ? "fullscreen.toppanel" : "window.toppanel", "state", 1) == 0) {
846 gtk_widget_hide_all (dtw->aux_toolbox);
847 } else {
848 // we cannot just show_all because that will show all tools' panels;
849 // this is a function from toolbox.cpp that shows only the current tool's panel
850 show_aux_toolbox (dtw->aux_toolbox);
851 }
853 if (prefs_get_int_attribute (fullscreen ? "fullscreen.toolbox" : "window.toolbox", "state", 1) == 0) {
854 gtk_widget_hide_all (dtw->tool_toolbox);
855 } else {
856 gtk_widget_show_all (dtw->tool_toolbox);
857 }
859 if (prefs_get_int_attribute (fullscreen ? "fullscreen.statusbar" : "window.statusbar", "state", 1) == 0) {
860 gtk_widget_hide_all (dtw->statusbar);
861 } else {
862 gtk_widget_show_all (dtw->statusbar);
863 }
865 if (prefs_get_int_attribute (fullscreen ? "fullscreen.panels" : "window.panels", "state", 1) == 0) {
866 gtk_widget_hide_all( dtw->panels );
867 } else {
868 gtk_widget_show_all( dtw->panels );
869 }
871 if (prefs_get_int_attribute (fullscreen ? "fullscreen.scrollbars" : "window.scrollbars", "state", 1) == 0) {
872 gtk_widget_hide_all (dtw->hscrollbar);
873 gtk_widget_hide_all (dtw->vscrollbar_box);
874 } else {
875 gtk_widget_show_all (dtw->hscrollbar);
876 gtk_widget_show_all (dtw->vscrollbar_box);
877 }
879 if (prefs_get_int_attribute (fullscreen ? "fullscreen.rulers" : "window.rulers", "state", 1) == 0) {
880 gtk_widget_hide_all (dtw->hruler);
881 gtk_widget_hide_all (dtw->vruler);
882 } else {
883 gtk_widget_show_all (dtw->hruler);
884 gtk_widget_show_all (dtw->vruler);
885 }
886 }
888 void
889 SPDesktopWidget::setToolboxFocusTo (const gchar* label)
890 {
891 gpointer hb = sp_search_by_data_recursive(aux_toolbox, (gpointer) label);
892 if (hb && GTK_IS_WIDGET(hb))
893 {
894 gtk_widget_grab_focus(GTK_WIDGET(hb));
895 }
896 }
898 void
899 SPDesktopWidget::setToolboxAdjustmentValue (gchar const *id, double value)
900 {
901 gpointer hb = sp_search_by_data_recursive (aux_toolbox, (gpointer) id);
902 if (hb && GTK_IS_WIDGET(hb) && GTK_IS_SPIN_BUTTON(hb)) {
903 GtkAdjustment *a = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON(hb));
904 gtk_adjustment_set_value (a, value);
905 }
906 }
908 bool
909 SPDesktopWidget::isToolboxButtonActive (const gchar* id)
910 {
911 GtkToggleButton *b = (GtkToggleButton *) sp_search_by_data_recursive(aux_toolbox, (gpointer) id);
913 return gtk_toggle_button_get_active (b) != 0;
914 }
916 SPViewWidget *
917 sp_desktop_widget_new (SPNamedView *namedview)
918 {
919 SPDesktopWidget *dtw = (SPDesktopWidget*)gtk_type_new (SP_TYPE_DESKTOP_WIDGET);
921 dtw->dt2r = 1.0 / namedview->doc_units->unittobase;
922 dtw->ruler_origin = namedview->gridorigin;
924 dtw->desktop = new SPDesktop();
925 dtw->stub = new SPDesktopWidget::WidgetStub (dtw);
926 dtw->desktop->registerEditWidget (dtw->stub);
927 dtw->desktop->init (namedview, dtw->canvas);
928 inkscape_add_desktop (dtw->desktop);
930 // Add the shape geometry to libavoid for autorouting connectors.
931 // This needs desktop set for its spacing preferences.
932 init_avoided_shape_geometry(dtw->desktop);
934 dtw->selected_style->setDesktop(dtw->desktop);
936 /* Once desktop is set, we can update rulers */
937 sp_desktop_widget_update_rulers (dtw);
939 sp_view_widget_set_view (SP_VIEW_WIDGET (dtw), dtw->desktop);
941 /* Listen on namedview modification */
942 dtw->modified_connection = namedview->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_desktop_widget_namedview_modified), dtw));
944 dtw->layer_selector->setDesktop(dtw->desktop);
946 dtw->menubar = sp_ui_main_menubar (dtw->desktop);
947 gtk_widget_show_all (dtw->menubar);
948 gtk_box_pack_start (GTK_BOX (dtw->vbox), dtw->menubar, FALSE, FALSE, 0);
950 sp_desktop_widget_layout (dtw);
952 sp_tool_toolbox_set_desktop (dtw->tool_toolbox, dtw->desktop);
953 sp_aux_toolbox_set_desktop (dtw->aux_toolbox, dtw->desktop);
954 sp_commands_toolbox_set_desktop (dtw->commands_toolbox, dtw->desktop);
956 return SP_VIEW_WIDGET (dtw);
957 }
959 void
960 SPDesktopWidget::viewSetPosition (NR::Point p)
961 {
962 NR::Point const origin = ( p - ruler_origin );
964 /// \todo fixme:
965 GTK_RULER(hruler)->position = origin[NR::X];
966 gtk_ruler_draw_pos (GTK_RULER (hruler));
967 GTK_RULER(vruler)->position = origin[NR::Y];
968 gtk_ruler_draw_pos (GTK_RULER (vruler));
969 }
971 void
972 sp_desktop_widget_update_rulers (SPDesktopWidget *dtw)
973 {
974 NR::Rect const viewbox = dtw->canvas->getViewbox();
975 double const scale = dtw->desktop->current_zoom();
976 double s = viewbox.min()[NR::X] / scale - dtw->ruler_origin[NR::X];
977 double e = viewbox.max()[NR::X] / scale - dtw->ruler_origin[NR::X];
978 gtk_ruler_set_range(GTK_RULER(dtw->hruler), s, e, GTK_RULER(dtw->hruler)->position, (e - s));
979 s = viewbox.min()[NR::Y] / -scale - dtw->ruler_origin[NR::Y];
980 e = viewbox.max()[NR::Y] / -scale - dtw->ruler_origin[NR::Y];
981 gtk_ruler_set_range(GTK_RULER(dtw->vruler), s, e, GTK_RULER(dtw->vruler)->position, (e - s));
982 }
985 static void
986 sp_desktop_widget_namedview_modified (SPObject *obj, guint flags, SPDesktopWidget *dtw)
987 {
988 SPNamedView *nv=SP_NAMEDVIEW(obj);
989 if (flags & SP_OBJECT_MODIFIED_FLAG) {
990 dtw->dt2r = 1.0 / nv->doc_units->unittobase;
991 dtw->ruler_origin = nv->gridorigin;
993 sp_ruler_set_metric (GTK_RULER (dtw->vruler), nv->getDefaultMetric());
994 sp_ruler_set_metric (GTK_RULER (dtw->hruler), nv->getDefaultMetric());
996 gtk_tooltips_set_tip (dtw->tt, dtw->hruler_box, gettext(sp_unit_get_plural (nv->doc_units)), NULL);
997 gtk_tooltips_set_tip (dtw->tt, dtw->vruler_box, gettext(sp_unit_get_plural (nv->doc_units)), NULL);
999 sp_desktop_widget_update_rulers (dtw);
1000 }
1001 }
1003 static void
1004 sp_desktop_widget_adjustment_value_changed (GtkAdjustment *adj, SPDesktopWidget *dtw)
1005 {
1006 if (dtw->update)
1007 return;
1009 dtw->update = 1;
1011 sp_canvas_scroll_to (dtw->canvas, dtw->hadj->value, dtw->vadj->value, FALSE);
1012 sp_desktop_widget_update_rulers (dtw);
1014 dtw->update = 0;
1015 }
1017 /* we make the desktop window with focus active, signal is connected in interface.c */
1019 gint
1020 sp_desktop_widget_set_focus (GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw)
1021 {
1022 inkscape_activate_desktop (dtw->desktop);
1024 /* give focus to canvas widget */
1025 gtk_widget_grab_focus (GTK_WIDGET (dtw->canvas));
1027 return FALSE;
1028 }
1030 static gdouble
1031 sp_dtw_zoom_value_to_display (gdouble value)
1032 {
1033 return floor (pow (2, value) * 100.0 + 0.5);
1034 }
1036 static gdouble
1037 sp_dtw_zoom_display_to_value (gdouble value)
1038 {
1039 return log (value / 100.0) / log (2);
1040 }
1042 static gint
1043 sp_dtw_zoom_input (GtkSpinButton *spin, gdouble *new_val, gpointer data)
1044 {
1045 gdouble new_scrolled = gtk_spin_button_get_value (spin);
1046 const gchar *b = gtk_entry_get_text (GTK_ENTRY (spin));
1047 gdouble new_typed = atof (b);
1049 if (sp_dtw_zoom_value_to_display (new_scrolled) == new_typed) { // the new value is set by scrolling
1050 *new_val = new_scrolled;
1051 } else { // the new value is typed in
1052 *new_val = sp_dtw_zoom_display_to_value (new_typed);
1053 }
1055 return TRUE;
1056 }
1058 static bool
1059 sp_dtw_zoom_output (GtkSpinButton *spin, gpointer data)
1060 {
1061 gchar b[64];
1062 g_snprintf (b, 64, "%4.0f%%", sp_dtw_zoom_value_to_display (gtk_spin_button_get_value (spin)));
1063 gtk_entry_set_text (GTK_ENTRY (spin), b);
1064 return TRUE;
1065 }
1067 static void
1068 sp_dtw_zoom_value_changed (GtkSpinButton *spin, gpointer data)
1069 {
1070 double const zoom_factor = pow (2, gtk_spin_button_get_value (spin));
1072 SPDesktopWidget *dtw = SP_DESKTOP_WIDGET (data);
1073 SPDesktop *desktop = dtw->desktop;
1075 NR::Rect const d = desktop->get_display_area();
1076 g_signal_handler_block (spin, dtw->zoom_update);
1077 desktop->zoom_absolute (d.midpoint()[NR::X], d.midpoint()[NR::Y], zoom_factor);
1078 g_signal_handler_unblock (spin, dtw->zoom_update);
1080 spinbutton_defocus (GTK_OBJECT (spin));
1081 }
1083 static void
1084 sp_dtw_zoom_populate_popup (GtkEntry *entry, GtkMenu *menu, gpointer data)
1085 {
1086 GList *children, *iter;
1087 GtkWidget *item;
1088 SPDesktop *dt = SP_DESKTOP_WIDGET (data)->desktop;
1090 children = gtk_container_get_children (GTK_CONTAINER (menu));
1091 for ( iter = children ; iter ; iter = g_list_next (iter)) {
1092 gtk_container_remove (GTK_CONTAINER (menu), GTK_WIDGET (iter->data));
1093 }
1094 g_list_free (children);
1096 item = gtk_menu_item_new_with_label ("200%");
1097 g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_200), dt);
1098 gtk_widget_show (item);
1099 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1100 item = gtk_menu_item_new_with_label ("100%");
1101 g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_100), dt);
1102 gtk_widget_show (item);
1103 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1104 item = gtk_menu_item_new_with_label ("50%");
1105 g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_50), dt);
1106 gtk_widget_show (item);
1107 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1109 item = gtk_separator_menu_item_new ();
1110 gtk_widget_show (item);
1111 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1113 item = gtk_menu_item_new_with_label (_("Page"));
1114 g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_page), dt);
1115 gtk_widget_show (item);
1116 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1117 item = gtk_menu_item_new_with_label (_("Drawing"));
1118 g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_drawing), dt);
1119 gtk_widget_show (item);
1120 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1121 item = gtk_menu_item_new_with_label (_("Selection"));
1122 g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_selection), dt);
1123 gtk_widget_show (item);
1124 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1125 }
1127 static void
1128 sp_dtw_zoom_menu_handler (SPDesktop *dt, gdouble factor)
1129 {
1130 NR::Rect const d = dt->get_display_area();
1131 dt->zoom_absolute(d.midpoint()[NR::X], d.midpoint()[NR::Y], factor);
1132 }
1134 static void
1135 sp_dtw_zoom_50 (GtkMenuItem *item, gpointer data)
1136 {
1137 sp_dtw_zoom_menu_handler (static_cast<SPDesktop*>(data), 0.5);
1138 }
1140 static void
1141 sp_dtw_zoom_100 (GtkMenuItem *item, gpointer data)
1142 {
1143 sp_dtw_zoom_menu_handler (static_cast<SPDesktop*>(data), 1.0);
1144 }
1146 static void
1147 sp_dtw_zoom_200 (GtkMenuItem *item, gpointer data)
1148 {
1149 sp_dtw_zoom_menu_handler (static_cast<SPDesktop*>(data), 2.0);
1150 }
1152 static void
1153 sp_dtw_zoom_page (GtkMenuItem *item, gpointer data)
1154 {
1155 static_cast<SPDesktop*>(data)->zoom_page();
1156 }
1158 static void
1159 sp_dtw_zoom_drawing (GtkMenuItem *item, gpointer data)
1160 {
1161 static_cast<SPDesktop*>(data)->zoom_drawing();
1162 }
1164 static void
1165 sp_dtw_zoom_selection (GtkMenuItem *item, gpointer data)
1166 {
1167 static_cast<SPDesktop*>(data)->zoom_selection();
1168 }
1172 void
1173 sp_desktop_widget_update_zoom (SPDesktopWidget *dtw)
1174 {
1175 g_signal_handlers_block_by_func (G_OBJECT (dtw->zoom_status), (gpointer)G_CALLBACK (sp_dtw_zoom_value_changed), dtw);
1176 gtk_spin_button_set_value (GTK_SPIN_BUTTON (dtw->zoom_status), log(dtw->desktop->current_zoom()) / log(2));
1177 g_signal_handlers_unblock_by_func (G_OBJECT (dtw->zoom_status), (gpointer)G_CALLBACK (sp_dtw_zoom_value_changed), dtw);
1178 }
1180 void
1181 sp_desktop_widget_toggle_rulers (SPDesktopWidget *dtw)
1182 {
1183 if (GTK_WIDGET_VISIBLE (dtw->hruler)) {
1184 gtk_widget_hide_all (dtw->hruler);
1185 gtk_widget_hide_all (dtw->vruler);
1186 prefs_set_int_attribute (dtw->desktop->is_fullscreen ? "fullscreen.rulers" : "window.rulers", "state", 0);
1187 } else {
1188 gtk_widget_show_all (dtw->hruler);
1189 gtk_widget_show_all (dtw->vruler);
1190 prefs_set_int_attribute (dtw->desktop->is_fullscreen ? "fullscreen.rulers" : "window.rulers", "state", 1);
1191 }
1192 }
1194 void
1195 sp_desktop_widget_toggle_scrollbars (SPDesktopWidget *dtw)
1196 {
1197 if (GTK_WIDGET_VISIBLE (dtw->hscrollbar)) {
1198 gtk_widget_hide_all (dtw->hscrollbar);
1199 gtk_widget_hide_all (dtw->vscrollbar_box);
1200 prefs_set_int_attribute (dtw->desktop->is_fullscreen ? "fullscreen.scrollbars" : "window.scrollbars", "state", 0);
1201 } else {
1202 gtk_widget_show_all (dtw->hscrollbar);
1203 gtk_widget_show_all (dtw->vscrollbar_box);
1204 prefs_set_int_attribute (dtw->desktop->is_fullscreen ? "fullscreen.scrollbars" : "window.scrollbars", "state", 1);
1205 }
1206 }
1208 /* Unused
1209 void
1210 sp_spw_toggle_menubar (SPDesktopWidget *dtw, bool is_fullscreen)
1211 {
1212 if (GTK_WIDGET_VISIBLE (dtw->menubar)) {
1213 gtk_widget_hide_all (dtw->menubar);
1214 prefs_set_int_attribute (is_fullscreen ? "fullscreen.menu" : "window.menu", "state", 0);
1215 } else {
1216 gtk_widget_show_all (dtw->menubar);
1217 prefs_set_int_attribute (is_fullscreen ? "fullscreen.menu" : "window.menu", "state", 1);
1218 }
1219 }
1220 */
1222 static void
1223 set_adjustment (GtkAdjustment *adj, double l, double u, double ps, double si, double pi)
1224 {
1225 if ((l != adj->lower) ||
1226 (u != adj->upper) ||
1227 (ps != adj->page_size) ||
1228 (si != adj->step_increment) ||
1229 (pi != adj->page_increment)) {
1230 adj->lower = l;
1231 adj->upper = u;
1232 adj->page_size = ps;
1233 adj->step_increment = si;
1234 adj->page_increment = pi;
1235 gtk_adjustment_changed (adj);
1236 }
1237 }
1239 void
1240 sp_desktop_widget_update_scrollbars (SPDesktopWidget *dtw, double scale)
1241 {
1242 if (!dtw) return;
1243 if (dtw->update) return;
1244 dtw->update = 1;
1246 /* The desktop region we always show unconditionally */
1247 SPDocument *doc = dtw->desktop->doc();
1248 NR::Rect const r = sp_item_bbox_desktop(SP_ITEM(SP_DOCUMENT_ROOT(doc)));
1249 NR::Rect darea(NR::Point(MIN(r.min()[NR::X], -sp_document_width(doc)),
1250 MIN(r.min()[NR::Y], -sp_document_height(doc))),
1251 NR::Point(MAX(r.max()[NR::X], 2 * sp_document_width(doc)),
1252 MAX(r.max()[NR::Y], 2 * sp_document_height(doc))));
1254 /* Canvas region we always show unconditionally */
1255 NR::Rect carea(NR::Point(darea.min()[NR::X] * scale - 64,
1256 darea.max()[NR::Y] * -scale - 64),
1257 NR::Point(darea.max()[NR::X] * scale + 64,
1258 darea.min()[NR::Y] * -scale + 64));
1260 NR::Rect viewbox = dtw->canvas->getViewbox();
1262 /* Viewbox is always included into scrollable region */
1263 carea = NR::Rect::union_bounds(carea, viewbox);
1265 set_adjustment(dtw->hadj, carea.min()[NR::X], carea.max()[NR::X],
1266 viewbox.dimensions()[NR::X],
1267 0.1 * viewbox.dimensions()[NR::X],
1268 viewbox.dimensions()[NR::X]);
1269 gtk_adjustment_set_value(dtw->hadj, viewbox.min()[NR::X]);
1271 set_adjustment(dtw->vadj, carea.min()[NR::Y], carea.max()[NR::Y],
1272 viewbox.dimensions()[NR::Y],
1273 0.1 * viewbox.dimensions()[NR::Y],
1274 viewbox.dimensions()[NR::Y]);
1275 gtk_adjustment_set_value(dtw->vadj, viewbox.min()[NR::Y]);
1277 dtw->update = 0;
1278 }
1281 /*
1282 Local Variables:
1283 mode:c++
1284 c-file-style:"stroustrup"
1285 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1286 indent-tabs-mode:nil
1287 fill-column:99
1288 End:
1289 */
1290 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :