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 g_signal_handlers_disconnect_by_func(G_OBJECT (dtw->zoom_status), (gpointer) G_CALLBACK(sp_dtw_zoom_input), dtw);
352 g_signal_handlers_disconnect_by_func(G_OBJECT (dtw->zoom_status), (gpointer) G_CALLBACK(sp_dtw_zoom_output), dtw);
353 gtk_signal_disconnect_by_data (GTK_OBJECT (dtw->zoom_status), dtw->zoom_status);
354 g_signal_handlers_disconnect_by_func (G_OBJECT (dtw->zoom_status), (gpointer) G_CALLBACK (sp_dtw_zoom_value_changed), dtw);
355 g_signal_handlers_disconnect_by_func (G_OBJECT (dtw->zoom_status), (gpointer) G_CALLBACK (sp_dtw_zoom_populate_popup), dtw);
356 g_signal_handlers_disconnect_by_func (G_OBJECT (dtw->canvas), (gpointer) G_CALLBACK (sp_desktop_widget_event), dtw);
358 dtw->layer_selector->unreference();
359 inkscape_remove_desktop (dtw->desktop); // clears selection too
360 dtw->modified_connection.disconnect();
361 dtw->desktop->destroy();
362 Inkscape::GC::release (dtw->desktop);
363 dtw->desktop = NULL;
364 }
366 dtw->modified_connection.~connection();
368 if (GTK_OBJECT_CLASS (dtw_parent_class)->destroy) {
369 (* GTK_OBJECT_CLASS (dtw_parent_class)->destroy) (object);
370 }
371 }
374 /**
375 * Set the title in the desktop-window (if desktop has an own window).
376 *
377 * The title has form file name: desktop number - Inkscape.
378 * The desktop number is only shown if it's 2 or higher,
379 */
380 void
381 SPDesktopWidget::updateTitle(gchar const* uri)
382 {
383 GtkWindow *window = GTK_WINDOW (gtk_object_get_data (GTK_OBJECT(this), "window"));
384 if (window) {
385 gchar const *fname = ( TRUE
386 ? uri
387 : g_basename(uri) );
388 GString *name = g_string_new ("");
389 if (this->desktop->number > 1) {
390 g_string_printf (name, _("%s: %d - Inkscape"), fname, this->desktop->number);
391 } else {
392 g_string_printf (name, _("%s - Inkscape"), fname);
393 }
394 gtk_window_set_title (window, name->str);
395 g_string_free (name, TRUE);
396 }
397 }
399 /**
400 * Callback to allocate space for desktop widget.
401 */
402 static void
403 sp_desktop_widget_size_allocate (GtkWidget *widget, GtkAllocation *allocation)
404 {
405 SPDesktopWidget *dtw = SP_DESKTOP_WIDGET (widget);
407 if ((allocation->x == widget->allocation.x) &&
408 (allocation->y == widget->allocation.y) &&
409 (allocation->width == widget->allocation.width) &&
410 (allocation->height == widget->allocation.height)) {
411 if (GTK_WIDGET_CLASS (dtw_parent_class)->size_allocate)
412 GTK_WIDGET_CLASS (dtw_parent_class)->size_allocate (widget, allocation);
413 return;
414 }
416 if (GTK_WIDGET_REALIZED (widget)) {
417 NR::Rect const area = dtw->desktop->get_display_area();
418 double zoom = dtw->desktop->current_zoom();
420 if (GTK_WIDGET_CLASS(dtw_parent_class)->size_allocate) {
421 GTK_WIDGET_CLASS(dtw_parent_class)->size_allocate (widget, allocation);
422 }
424 if (SP_BUTTON_IS_DOWN(dtw->sticky_zoom)) {
425 /* Calculate zoom per pixel */
426 double const zpsp = zoom / hypot (area.dimensions()[NR::X], area.dimensions()[NR::Y]);
427 /* Find new visible area */
428 NR::Rect newarea = dtw->desktop->get_display_area();
429 /* Calculate adjusted zoom */
430 zoom = zpsp * hypot(newarea.dimensions()[NR::X], newarea.dimensions()[NR::Y]);
431 dtw->desktop->zoom_absolute(newarea.midpoint()[NR::X], newarea.midpoint()[NR::Y], zoom);
432 } else {
433 dtw->desktop->zoom_absolute(area.midpoint()[NR::X], area.midpoint()[NR::Y], zoom);
434 }
436 } else {
437 if (GTK_WIDGET_CLASS (dtw_parent_class)->size_allocate) {
438 GTK_WIDGET_CLASS (dtw_parent_class)->size_allocate (widget, allocation);
439 }
440 // this->size_allocate (widget, allocation);
441 }
442 }
444 /**
445 * Callback to realize desktop widget.
446 */
447 static void
448 sp_desktop_widget_realize (GtkWidget *widget)
449 {
451 SPDesktopWidget *dtw = SP_DESKTOP_WIDGET (widget);
453 if (GTK_WIDGET_CLASS (dtw_parent_class)->realize)
454 (* GTK_WIDGET_CLASS (dtw_parent_class)->realize) (widget);
456 NRRect d;
457 d.x0 = 0.0;
458 d.y0 = 0.0;
459 d.x1 = sp_document_width (dtw->desktop->doc());
460 d.y1 = sp_document_height (dtw->desktop->doc());
462 if ((fabs (d.x1 - d.x0) < 1.0) || (fabs (d.y1 - d.y0) < 1.0)) return;
464 dtw->desktop->set_display_area (d.x0, d.y0, d.x1, d.y1, 10);
466 /* Listen on namedview modification */
467 // originally (prior to the sigc++ conversion) the signal was simply
468 // connected twice rather than disconnecting the first connection
469 dtw->modified_connection.disconnect();
470 dtw->modified_connection = dtw->desktop->namedview->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_desktop_widget_namedview_modified), dtw));
471 sp_desktop_widget_namedview_modified (dtw->desktop->namedview, SP_OBJECT_MODIFIED_FLAG, dtw);
473 dtw->updateTitle(SP_DOCUMENT_NAME (dtw->desktop->doc()));
474 }
476 /**
477 * Callback to handle desktop widget event.
478 */
479 static gint
480 sp_desktop_widget_event (GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw)
481 {
482 if (event->type == GDK_BUTTON_PRESS) {
483 // defocus any spinbuttons
484 gtk_widget_grab_focus (GTK_WIDGET(dtw->canvas));
485 }
487 if ((event->type == GDK_BUTTON_PRESS) && (event->button.button == 3)) {
488 if (event->button.state & GDK_SHIFT_MASK) {
489 sp_canvas_arena_set_sticky (SP_CANVAS_ARENA (dtw->desktop->drawing), TRUE);
490 } else {
491 sp_canvas_arena_set_sticky (SP_CANVAS_ARENA (dtw->desktop->drawing), FALSE);
492 }
493 }
495 if (GTK_WIDGET_CLASS (dtw_parent_class)->event) {
496 return (* GTK_WIDGET_CLASS (dtw_parent_class)->event) (widget, event);
497 } else {
498 // The keypress events need to be passed to desktop handler explicitly,
499 // because otherwise the event contexts only receive keypresses when the mouse cursor
500 // is over the canvas. This redirection is only done for keypresses and only if there's no
501 // current item on the canvas, because item events and all mouse events are caught
502 // and passed on by the canvas acetate (I think). --bb
503 if (event->type == GDK_KEY_PRESS && !dtw->canvas->current_item) {
504 return sp_desktop_root_handler (NULL, event, dtw->desktop);
505 }
506 }
508 return FALSE;
509 }
511 void
512 sp_dtw_desktop_activate (SPDesktopWidget *dtw)
513 {
514 /* update active desktop indicator */
515 }
517 void
518 sp_dtw_desktop_deactivate (SPDesktopWidget *dtw)
519 {
520 /* update inactive desktop indicator */
521 }
523 /**
524 * Shuts down the desktop object for the view being closed. It checks
525 * to see if the document has been edited, and if so prompts the user
526 * to save, discard, or cancel. Returns TRUE if the shutdown operation
527 * is cancelled or if the save is cancelled or fails, FALSE otherwise.
528 */
529 bool
530 SPDesktopWidget::shutdown()
531 {
532 g_assert(desktop != NULL);
533 if (inkscape_is_sole_desktop_for_document(*desktop)) {
534 SPDocument *doc = desktop->doc();
535 if (sp_document_repr_root(doc)->attribute("sodipodi:modified") != NULL) {
536 GtkWidget *dialog;
538 dialog = gtk_message_dialog_new(
539 GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this))),
540 GTK_DIALOG_DESTROY_WITH_PARENT,
541 GTK_MESSAGE_WARNING,
542 GTK_BUTTONS_NONE,
543 "Document modified");
545 gchar *markup;
546 /** \todo
547 * FIXME !!! obviously this will have problems if the document
548 * name contains markup characters
549 */
550 markup = g_strdup_printf(
551 _("<span weight=\"bold\" size=\"larger\">Save changes to document \"%s\" before closing?</span>\n\n"
552 "If you close without saving, your changes will be discarded."),
553 SP_DOCUMENT_NAME(doc));
555 /** \todo
556 * FIXME !!! Gtk 2.3+ gives us gtk_message_dialog_set_markup()
557 * (and actually even
558 * gtk_message_dialog_new_with_markup(..., format, ...)!) --
559 * until then, we will have to be a little bit evil here and
560 * poke at GtkMessageDialog::label, which is private...
561 */
563 gtk_label_set_markup(GTK_LABEL(GTK_MESSAGE_DIALOG(dialog)->label), markup);
564 g_free(markup);
566 GtkWidget *close_button;
567 close_button = gtk_button_new_with_mnemonic(_("Close _without saving"));
568 gtk_widget_show(close_button);
569 gtk_dialog_add_action_widget(GTK_DIALOG(dialog), close_button, GTK_RESPONSE_NO);
571 gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);
572 gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_SAVE, GTK_RESPONSE_YES);
573 gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_YES);
575 gint response;
576 response = gtk_dialog_run(GTK_DIALOG(dialog));
577 gtk_widget_destroy(dialog);
579 switch (response) {
580 case GTK_RESPONSE_YES:
581 sp_document_ref(doc);
582 if (sp_file_save_document(doc)) {
583 sp_document_unref(doc);
584 } else { // save dialog cancelled or save failed
585 sp_document_unref(doc);
586 return TRUE;
587 }
588 break;
589 case GTK_RESPONSE_NO:
590 break;
591 default: // cancel pressed, or dialog was closed
592 return TRUE;
593 break;
594 }
595 }
596 /* Code to check data loss */
597 bool allow_data_loss = FALSE;
598 while (sp_document_repr_root(doc)->attribute("inkscape:dataloss") != NULL && allow_data_loss == FALSE) {
599 GtkWidget *dialog;
601 dialog = gtk_message_dialog_new(
602 GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this))),
603 GTK_DIALOG_DESTROY_WITH_PARENT,
604 GTK_MESSAGE_WARNING,
605 GTK_BUTTONS_NONE,
606 "Document modified");
608 gchar *markup;
609 /** \todo
610 * FIXME !!! obviously this will have problems if the document
611 * name contains markup characters
612 */
613 markup = g_strdup_printf(
614 _("<span weight=\"bold\" size=\"larger\">The file \"%s\" was saved with a format (%s) that may cause data loss!</span>\n\n"
615 "Do you want to save this file in another format?"),
616 SP_DOCUMENT_NAME(doc),
617 Inkscape::Extension::db.get(sp_document_repr_root(doc)->attribute("inkscape:output_extension"))->get_name());
619 /** \todo
620 * FIXME !!! Gtk 2.3+ gives us gtk_message_dialog_set_markup()
621 * (and actually even
622 * gtk_message_dialog_new_with_markup(..., format, ...)!) --
623 * until then, we will have to be a little bit evil here and
624 * poke at GtkMessageDialog::label, which is private...
625 */
627 gtk_label_set_markup(GTK_LABEL(GTK_MESSAGE_DIALOG(dialog)->label), markup);
628 g_free(markup);
630 GtkWidget *close_button;
631 close_button = gtk_button_new_with_mnemonic(_("Close _without saving"));
632 gtk_widget_show(close_button);
633 gtk_dialog_add_action_widget(GTK_DIALOG(dialog), close_button, GTK_RESPONSE_NO);
635 gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);
636 gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_SAVE, GTK_RESPONSE_YES);
637 gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_YES);
639 gint response;
640 response = gtk_dialog_run(GTK_DIALOG(dialog));
641 gtk_widget_destroy(dialog);
643 switch (response) {
644 case GTK_RESPONSE_YES:
645 sp_document_ref(doc);
646 if (sp_file_save_dialog(doc)) {
647 sp_document_unref(doc);
648 } else { // save dialog cancelled or save failed
649 sp_document_unref(doc);
650 return TRUE;
651 }
652 break;
653 case GTK_RESPONSE_NO:
654 allow_data_loss = TRUE;
655 break;
656 default: // cancel pressed, or dialog was closed
657 return TRUE;
658 break;
659 }
660 }
661 }
663 return FALSE;
664 }
666 /**
667 * \pre this->desktop->main != 0
668 */
669 void
670 SPDesktopWidget::requestCanvasUpdate() {
671 gtk_widget_queue_draw (GTK_WIDGET (SP_CANVAS_ITEM (this->desktop->main)->canvas));
672 }
674 void
675 SPDesktopWidget::requestCanvasUpdateAndWait() {
676 requestCanvasUpdate();
678 while (gtk_events_pending())
679 gtk_main_iteration_do(FALSE);
681 }
683 void
684 SPDesktopWidget::enableInteraction()
685 {
686 g_return_if_fail(_interaction_disabled_counter > 0);
688 _interaction_disabled_counter--;
690 if (_interaction_disabled_counter == 0) {
691 gtk_widget_set_sensitive(GTK_WIDGET(this), TRUE);
692 }
693 }
695 void
696 SPDesktopWidget::disableInteraction()
697 {
698 if (_interaction_disabled_counter == 0) {
699 gtk_widget_set_sensitive(GTK_WIDGET(this), FALSE);
700 }
702 _interaction_disabled_counter++;
703 }
705 void
706 SPDesktopWidget::setCoordinateStatus(NR::Point p)
707 {
708 gchar *cstr;
709 cstr=g_strdup_printf("%6.2f", dt2r * p[NR::X]);
710 gtk_label_set_text (GTK_LABEL (this->coord_status_x), cstr);
711 g_free(cstr);
712 cstr=g_strdup_printf("%6.2f", dt2r * p[NR::Y]);
713 gtk_label_set_text (GTK_LABEL (this->coord_status_y), cstr);
714 g_free(cstr);
715 }
717 void
718 SPDesktopWidget::letZoomGrabFocus()
719 {
720 if (zoom_status)
721 gtk_widget_grab_focus (zoom_status);
722 }
724 void
725 SPDesktopWidget::getWindowGeometry (gint &x, gint &y, gint &w, gint &h)
726 {
727 GtkWindow *window = GTK_WINDOW (gtk_object_get_data (GTK_OBJECT(this), "window"));
728 if (window)
729 {
730 gtk_window_get_size (window, &w, &h);
731 gtk_window_get_position (window, &x, &y);
732 }
733 }
735 void
736 SPDesktopWidget::setWindowPosition (NR::Point p)
737 {
738 GtkWindow *window = GTK_WINDOW (gtk_object_get_data (GTK_OBJECT(this), "window"));
739 if (window)
740 {
741 gtk_window_move (window, gint(round(p[NR::X])), gint(round(p[NR::Y])));
742 }
743 }
745 void
746 SPDesktopWidget::setWindowSize (gint w, gint h)
747 {
748 GtkWindow *window = GTK_WINDOW (gtk_object_get_data (GTK_OBJECT(this), "window"));
749 if (window)
750 {
751 gtk_window_set_default_size (window, w, h);
752 gtk_window_reshow_with_initial_size (window);
753 }
754 }
756 /**
757 * \note transientizing does not work on windows; when you minimize a document
758 * and then open it back, only its transient emerges and you cannot access
759 * the document window.
760 */
761 void
762 SPDesktopWidget::setWindowTransient (void *p, int transient_policy)
763 {
764 #ifndef WIN32
765 GtkWindow *w =GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this)));
766 if (w)
767 {
768 gtk_window_set_transient_for (GTK_WINDOW(p), w);
770 /*
771 * This enables "aggressive" transientization,
772 * i.e. dialogs always emerging on top when you switch documents. Note
773 * however that this breaks "click to raise" policy of a window
774 * manager because the switched-to document will be raised at once
775 * (so that its transients also could raise)
776 */
777 if (transient_policy == 2)
779 // without this, a transient window not always emerges on top
780 gtk_window_present (w);
781 }
782 #endif
783 }
785 void
786 SPDesktopWidget::presentWindow()
787 {
788 GtkWindow *w =GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this)));
789 if (w)
790 gtk_window_present (w);
791 }
793 bool
794 SPDesktopWidget::warnDialog (gchar* text)
795 {
796 GtkWindow *w =GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this)));
797 if (w)
798 {
799 GtkWidget *dialog = gtk_message_dialog_new(
800 w,
801 GTK_DIALOG_DESTROY_WITH_PARENT,
802 GTK_MESSAGE_WARNING,
803 GTK_BUTTONS_YES_NO,
804 text);
805 gint response = gtk_dialog_run(GTK_DIALOG(dialog));
806 gtk_widget_destroy(dialog);
807 if (response == GTK_RESPONSE_YES)
808 return true;
809 }
810 return false;
811 }
813 void
814 sp_desktop_widget_fullscreen(SPDesktopWidget *dtw)
815 {
816 #ifdef HAVE_GTK_WINDOW_FULLSCREEN
817 GtkWindow *topw = GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(dtw->canvas)));
818 if (GTK_IS_WINDOW(topw)) {
819 if (dtw->desktop->is_fullscreen) {
820 dtw->desktop->is_fullscreen = FALSE;
821 gtk_window_unfullscreen(topw);
822 sp_desktop_widget_layout (dtw);
823 } else {
824 dtw->desktop->is_fullscreen = TRUE;
825 gtk_window_fullscreen(topw);
826 sp_desktop_widget_layout (dtw);
827 }
828 }
829 #endif /* HAVE_GTK_WINDOW_FULLSCREEN */
830 }
832 /**
833 * Hide whatever the user does not want to see in the window
834 */
835 void
836 sp_desktop_widget_layout (SPDesktopWidget *dtw)
837 {
838 bool fullscreen = dtw->desktop->is_fullscreen;
840 if (prefs_get_int_attribute (fullscreen ? "fullscreen.menu" : "window.menu", "state", 1) == 0) {
841 gtk_widget_hide_all (dtw->menubar);
842 } else {
843 gtk_widget_show_all (dtw->menubar);
844 }
846 if (prefs_get_int_attribute (fullscreen ? "fullscreen.commands" : "window.commands", "state", 1) == 0) {
847 gtk_widget_hide_all (dtw->commands_toolbox);
848 } else {
849 gtk_widget_show_all (dtw->commands_toolbox);
850 }
852 if (prefs_get_int_attribute (fullscreen ? "fullscreen.toppanel" : "window.toppanel", "state", 1) == 0) {
853 gtk_widget_hide_all (dtw->aux_toolbox);
854 } else {
855 // we cannot just show_all because that will show all tools' panels;
856 // this is a function from toolbox.cpp that shows only the current tool's panel
857 show_aux_toolbox (dtw->aux_toolbox);
858 }
860 if (prefs_get_int_attribute (fullscreen ? "fullscreen.toolbox" : "window.toolbox", "state", 1) == 0) {
861 gtk_widget_hide_all (dtw->tool_toolbox);
862 } else {
863 gtk_widget_show_all (dtw->tool_toolbox);
864 }
866 if (prefs_get_int_attribute (fullscreen ? "fullscreen.statusbar" : "window.statusbar", "state", 1) == 0) {
867 gtk_widget_hide_all (dtw->statusbar);
868 } else {
869 gtk_widget_show_all (dtw->statusbar);
870 }
872 if (prefs_get_int_attribute (fullscreen ? "fullscreen.panels" : "window.panels", "state", 1) == 0) {
873 gtk_widget_hide_all( dtw->panels );
874 } else {
875 gtk_widget_show_all( dtw->panels );
876 }
878 if (prefs_get_int_attribute (fullscreen ? "fullscreen.scrollbars" : "window.scrollbars", "state", 1) == 0) {
879 gtk_widget_hide_all (dtw->hscrollbar);
880 gtk_widget_hide_all (dtw->vscrollbar_box);
881 } else {
882 gtk_widget_show_all (dtw->hscrollbar);
883 gtk_widget_show_all (dtw->vscrollbar_box);
884 }
886 if (prefs_get_int_attribute (fullscreen ? "fullscreen.rulers" : "window.rulers", "state", 1) == 0) {
887 gtk_widget_hide_all (dtw->hruler);
888 gtk_widget_hide_all (dtw->vruler);
889 } else {
890 gtk_widget_show_all (dtw->hruler);
891 gtk_widget_show_all (dtw->vruler);
892 }
893 }
895 void
896 SPDesktopWidget::setToolboxFocusTo (const gchar* label)
897 {
898 gpointer hb = sp_search_by_data_recursive(aux_toolbox, (gpointer) label);
899 if (hb && GTK_IS_WIDGET(hb))
900 {
901 gtk_widget_grab_focus(GTK_WIDGET(hb));
902 }
903 }
905 void
906 SPDesktopWidget::setToolboxAdjustmentValue (gchar const *id, double value)
907 {
908 gpointer hb = sp_search_by_data_recursive (aux_toolbox, (gpointer) id);
909 if (hb && GTK_IS_WIDGET(hb) && GTK_IS_SPIN_BUTTON(hb)) {
910 GtkAdjustment *a = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON(hb));
911 gtk_adjustment_set_value (a, value);
912 }
913 }
915 bool
916 SPDesktopWidget::isToolboxButtonActive (const gchar* id)
917 {
918 GtkToggleButton *b = (GtkToggleButton *) sp_search_by_data_recursive(aux_toolbox, (gpointer) id);
920 return gtk_toggle_button_get_active (b) != 0;
921 }
923 SPViewWidget *
924 sp_desktop_widget_new (SPNamedView *namedview)
925 {
926 SPDesktopWidget *dtw = (SPDesktopWidget*)gtk_type_new (SP_TYPE_DESKTOP_WIDGET);
928 dtw->dt2r = 1.0 / namedview->doc_units->unittobase;
929 dtw->ruler_origin = namedview->gridorigin;
931 dtw->desktop = new SPDesktop();
932 dtw->stub = new SPDesktopWidget::WidgetStub (dtw);
933 dtw->desktop->registerEditWidget (dtw->stub);
934 dtw->desktop->init (namedview, dtw->canvas);
935 inkscape_add_desktop (dtw->desktop);
937 // Add the shape geometry to libavoid for autorouting connectors.
938 // This needs desktop set for its spacing preferences.
939 init_avoided_shape_geometry(dtw->desktop);
941 dtw->selected_style->setDesktop(dtw->desktop);
943 /* Once desktop is set, we can update rulers */
944 sp_desktop_widget_update_rulers (dtw);
946 sp_view_widget_set_view (SP_VIEW_WIDGET (dtw), dtw->desktop);
948 /* Listen on namedview modification */
949 dtw->modified_connection = namedview->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_desktop_widget_namedview_modified), dtw));
951 dtw->layer_selector->setDesktop(dtw->desktop);
953 dtw->menubar = sp_ui_main_menubar (dtw->desktop);
954 gtk_widget_show_all (dtw->menubar);
955 gtk_box_pack_start (GTK_BOX (dtw->vbox), dtw->menubar, FALSE, FALSE, 0);
957 sp_desktop_widget_layout (dtw);
959 sp_tool_toolbox_set_desktop (dtw->tool_toolbox, dtw->desktop);
960 sp_aux_toolbox_set_desktop (dtw->aux_toolbox, dtw->desktop);
961 sp_commands_toolbox_set_desktop (dtw->commands_toolbox, dtw->desktop);
963 return SP_VIEW_WIDGET (dtw);
964 }
966 void
967 SPDesktopWidget::viewSetPosition (NR::Point p)
968 {
969 NR::Point const origin = ( p - ruler_origin );
971 /// \todo fixme:
972 GTK_RULER(hruler)->position = origin[NR::X];
973 gtk_ruler_draw_pos (GTK_RULER (hruler));
974 GTK_RULER(vruler)->position = origin[NR::Y];
975 gtk_ruler_draw_pos (GTK_RULER (vruler));
976 }
978 void
979 sp_desktop_widget_update_rulers (SPDesktopWidget *dtw)
980 {
981 NR::Rect const viewbox = dtw->canvas->getViewbox();
982 double const scale = dtw->desktop->current_zoom();
983 double s = viewbox.min()[NR::X] / scale - dtw->ruler_origin[NR::X];
984 double e = viewbox.max()[NR::X] / scale - dtw->ruler_origin[NR::X];
985 gtk_ruler_set_range(GTK_RULER(dtw->hruler), s, e, GTK_RULER(dtw->hruler)->position, (e - s));
986 s = viewbox.min()[NR::Y] / -scale - dtw->ruler_origin[NR::Y];
987 e = viewbox.max()[NR::Y] / -scale - dtw->ruler_origin[NR::Y];
988 gtk_ruler_set_range(GTK_RULER(dtw->vruler), s, e, GTK_RULER(dtw->vruler)->position, (e - s));
989 }
992 static void
993 sp_desktop_widget_namedview_modified (SPObject *obj, guint flags, SPDesktopWidget *dtw)
994 {
995 SPNamedView *nv=SP_NAMEDVIEW(obj);
996 if (flags & SP_OBJECT_MODIFIED_FLAG) {
997 dtw->dt2r = 1.0 / nv->doc_units->unittobase;
998 dtw->ruler_origin = nv->gridorigin;
1000 sp_ruler_set_metric (GTK_RULER (dtw->vruler), nv->getDefaultMetric());
1001 sp_ruler_set_metric (GTK_RULER (dtw->hruler), nv->getDefaultMetric());
1003 gtk_tooltips_set_tip (dtw->tt, dtw->hruler_box, gettext(sp_unit_get_plural (nv->doc_units)), NULL);
1004 gtk_tooltips_set_tip (dtw->tt, dtw->vruler_box, gettext(sp_unit_get_plural (nv->doc_units)), NULL);
1006 sp_desktop_widget_update_rulers (dtw);
1007 }
1008 }
1010 static void
1011 sp_desktop_widget_adjustment_value_changed (GtkAdjustment *adj, SPDesktopWidget *dtw)
1012 {
1013 if (dtw->update)
1014 return;
1016 dtw->update = 1;
1018 sp_canvas_scroll_to (dtw->canvas, dtw->hadj->value, dtw->vadj->value, FALSE);
1019 sp_desktop_widget_update_rulers (dtw);
1021 dtw->update = 0;
1022 }
1024 /* we make the desktop window with focus active, signal is connected in interface.c */
1026 gint
1027 sp_desktop_widget_set_focus (GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw)
1028 {
1029 inkscape_activate_desktop (dtw->desktop);
1031 /* give focus to canvas widget */
1032 gtk_widget_grab_focus (GTK_WIDGET (dtw->canvas));
1034 return FALSE;
1035 }
1037 static gdouble
1038 sp_dtw_zoom_value_to_display (gdouble value)
1039 {
1040 return floor (pow (2, value) * 100.0 + 0.5);
1041 }
1043 static gdouble
1044 sp_dtw_zoom_display_to_value (gdouble value)
1045 {
1046 return log (value / 100.0) / log (2);
1047 }
1049 static gint
1050 sp_dtw_zoom_input (GtkSpinButton *spin, gdouble *new_val, gpointer data)
1051 {
1052 gdouble new_scrolled = gtk_spin_button_get_value (spin);
1053 const gchar *b = gtk_entry_get_text (GTK_ENTRY (spin));
1054 gdouble new_typed = atof (b);
1056 if (sp_dtw_zoom_value_to_display (new_scrolled) == new_typed) { // the new value is set by scrolling
1057 *new_val = new_scrolled;
1058 } else { // the new value is typed in
1059 *new_val = sp_dtw_zoom_display_to_value (new_typed);
1060 }
1062 return TRUE;
1063 }
1065 static bool
1066 sp_dtw_zoom_output (GtkSpinButton *spin, gpointer data)
1067 {
1068 gchar b[64];
1069 g_snprintf (b, 64, "%4.0f%%", sp_dtw_zoom_value_to_display (gtk_spin_button_get_value (spin)));
1070 gtk_entry_set_text (GTK_ENTRY (spin), b);
1071 return TRUE;
1072 }
1074 static void
1075 sp_dtw_zoom_value_changed (GtkSpinButton *spin, gpointer data)
1076 {
1077 double const zoom_factor = pow (2, gtk_spin_button_get_value (spin));
1079 SPDesktopWidget *dtw = SP_DESKTOP_WIDGET (data);
1080 SPDesktop *desktop = dtw->desktop;
1082 NR::Rect const d = desktop->get_display_area();
1083 g_signal_handler_block (spin, dtw->zoom_update);
1084 desktop->zoom_absolute (d.midpoint()[NR::X], d.midpoint()[NR::Y], zoom_factor);
1085 g_signal_handler_unblock (spin, dtw->zoom_update);
1087 spinbutton_defocus (GTK_OBJECT (spin));
1088 }
1090 static void
1091 sp_dtw_zoom_populate_popup (GtkEntry *entry, GtkMenu *menu, gpointer data)
1092 {
1093 GList *children, *iter;
1094 GtkWidget *item;
1095 SPDesktop *dt = SP_DESKTOP_WIDGET (data)->desktop;
1097 children = gtk_container_get_children (GTK_CONTAINER (menu));
1098 for ( iter = children ; iter ; iter = g_list_next (iter)) {
1099 gtk_container_remove (GTK_CONTAINER (menu), GTK_WIDGET (iter->data));
1100 }
1101 g_list_free (children);
1103 item = gtk_menu_item_new_with_label ("200%");
1104 g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_200), dt);
1105 gtk_widget_show (item);
1106 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1107 item = gtk_menu_item_new_with_label ("100%");
1108 g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_100), dt);
1109 gtk_widget_show (item);
1110 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1111 item = gtk_menu_item_new_with_label ("50%");
1112 g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_50), dt);
1113 gtk_widget_show (item);
1114 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1116 item = gtk_separator_menu_item_new ();
1117 gtk_widget_show (item);
1118 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1120 item = gtk_menu_item_new_with_label (_("Page"));
1121 g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_page), dt);
1122 gtk_widget_show (item);
1123 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1124 item = gtk_menu_item_new_with_label (_("Drawing"));
1125 g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_drawing), dt);
1126 gtk_widget_show (item);
1127 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1128 item = gtk_menu_item_new_with_label (_("Selection"));
1129 g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_selection), dt);
1130 gtk_widget_show (item);
1131 gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);
1132 }
1134 static void
1135 sp_dtw_zoom_menu_handler (SPDesktop *dt, gdouble factor)
1136 {
1137 NR::Rect const d = dt->get_display_area();
1138 dt->zoom_absolute(d.midpoint()[NR::X], d.midpoint()[NR::Y], factor);
1139 }
1141 static void
1142 sp_dtw_zoom_50 (GtkMenuItem *item, gpointer data)
1143 {
1144 sp_dtw_zoom_menu_handler (static_cast<SPDesktop*>(data), 0.5);
1145 }
1147 static void
1148 sp_dtw_zoom_100 (GtkMenuItem *item, gpointer data)
1149 {
1150 sp_dtw_zoom_menu_handler (static_cast<SPDesktop*>(data), 1.0);
1151 }
1153 static void
1154 sp_dtw_zoom_200 (GtkMenuItem *item, gpointer data)
1155 {
1156 sp_dtw_zoom_menu_handler (static_cast<SPDesktop*>(data), 2.0);
1157 }
1159 static void
1160 sp_dtw_zoom_page (GtkMenuItem *item, gpointer data)
1161 {
1162 static_cast<SPDesktop*>(data)->zoom_page();
1163 }
1165 static void
1166 sp_dtw_zoom_drawing (GtkMenuItem *item, gpointer data)
1167 {
1168 static_cast<SPDesktop*>(data)->zoom_drawing();
1169 }
1171 static void
1172 sp_dtw_zoom_selection (GtkMenuItem *item, gpointer data)
1173 {
1174 static_cast<SPDesktop*>(data)->zoom_selection();
1175 }
1179 void
1180 sp_desktop_widget_update_zoom (SPDesktopWidget *dtw)
1181 {
1182 g_signal_handlers_block_by_func (G_OBJECT (dtw->zoom_status), (gpointer)G_CALLBACK (sp_dtw_zoom_value_changed), dtw);
1183 gtk_spin_button_set_value (GTK_SPIN_BUTTON (dtw->zoom_status), log(dtw->desktop->current_zoom()) / log(2));
1184 g_signal_handlers_unblock_by_func (G_OBJECT (dtw->zoom_status), (gpointer)G_CALLBACK (sp_dtw_zoom_value_changed), dtw);
1185 }
1187 void
1188 sp_desktop_widget_toggle_rulers (SPDesktopWidget *dtw)
1189 {
1190 if (GTK_WIDGET_VISIBLE (dtw->hruler)) {
1191 gtk_widget_hide_all (dtw->hruler);
1192 gtk_widget_hide_all (dtw->vruler);
1193 prefs_set_int_attribute (dtw->desktop->is_fullscreen ? "fullscreen.rulers" : "window.rulers", "state", 0);
1194 } else {
1195 gtk_widget_show_all (dtw->hruler);
1196 gtk_widget_show_all (dtw->vruler);
1197 prefs_set_int_attribute (dtw->desktop->is_fullscreen ? "fullscreen.rulers" : "window.rulers", "state", 1);
1198 }
1199 }
1201 void
1202 sp_desktop_widget_toggle_scrollbars (SPDesktopWidget *dtw)
1203 {
1204 if (GTK_WIDGET_VISIBLE (dtw->hscrollbar)) {
1205 gtk_widget_hide_all (dtw->hscrollbar);
1206 gtk_widget_hide_all (dtw->vscrollbar_box);
1207 prefs_set_int_attribute (dtw->desktop->is_fullscreen ? "fullscreen.scrollbars" : "window.scrollbars", "state", 0);
1208 } else {
1209 gtk_widget_show_all (dtw->hscrollbar);
1210 gtk_widget_show_all (dtw->vscrollbar_box);
1211 prefs_set_int_attribute (dtw->desktop->is_fullscreen ? "fullscreen.scrollbars" : "window.scrollbars", "state", 1);
1212 }
1213 }
1215 /* Unused
1216 void
1217 sp_spw_toggle_menubar (SPDesktopWidget *dtw, bool is_fullscreen)
1218 {
1219 if (GTK_WIDGET_VISIBLE (dtw->menubar)) {
1220 gtk_widget_hide_all (dtw->menubar);
1221 prefs_set_int_attribute (is_fullscreen ? "fullscreen.menu" : "window.menu", "state", 0);
1222 } else {
1223 gtk_widget_show_all (dtw->menubar);
1224 prefs_set_int_attribute (is_fullscreen ? "fullscreen.menu" : "window.menu", "state", 1);
1225 }
1226 }
1227 */
1229 static void
1230 set_adjustment (GtkAdjustment *adj, double l, double u, double ps, double si, double pi)
1231 {
1232 if ((l != adj->lower) ||
1233 (u != adj->upper) ||
1234 (ps != adj->page_size) ||
1235 (si != adj->step_increment) ||
1236 (pi != adj->page_increment)) {
1237 adj->lower = l;
1238 adj->upper = u;
1239 adj->page_size = ps;
1240 adj->step_increment = si;
1241 adj->page_increment = pi;
1242 gtk_adjustment_changed (adj);
1243 }
1244 }
1246 void
1247 sp_desktop_widget_update_scrollbars (SPDesktopWidget *dtw, double scale)
1248 {
1249 if (!dtw) return;
1250 if (dtw->update) return;
1251 dtw->update = 1;
1253 /* The desktop region we always show unconditionally */
1254 SPDocument *doc = dtw->desktop->doc();
1255 NR::Rect const r = sp_item_bbox_desktop(SP_ITEM(SP_DOCUMENT_ROOT(doc)));
1256 NR::Rect darea(NR::Point(MIN(r.min()[NR::X], -sp_document_width(doc)),
1257 MIN(r.min()[NR::Y], -sp_document_height(doc))),
1258 NR::Point(MAX(r.max()[NR::X], 2 * sp_document_width(doc)),
1259 MAX(r.max()[NR::Y], 2 * sp_document_height(doc))));
1261 /* Canvas region we always show unconditionally */
1262 NR::Rect carea(NR::Point(darea.min()[NR::X] * scale - 64,
1263 darea.max()[NR::Y] * -scale - 64),
1264 NR::Point(darea.max()[NR::X] * scale + 64,
1265 darea.min()[NR::Y] * -scale + 64));
1267 NR::Rect viewbox = dtw->canvas->getViewbox();
1269 /* Viewbox is always included into scrollable region */
1270 carea = NR::Rect::union_bounds(carea, viewbox);
1272 set_adjustment(dtw->hadj, carea.min()[NR::X], carea.max()[NR::X],
1273 viewbox.dimensions()[NR::X],
1274 0.1 * viewbox.dimensions()[NR::X],
1275 viewbox.dimensions()[NR::X]);
1276 gtk_adjustment_set_value(dtw->hadj, viewbox.min()[NR::X]);
1278 set_adjustment(dtw->vadj, carea.min()[NR::Y], carea.max()[NR::Y],
1279 viewbox.dimensions()[NR::Y],
1280 0.1 * viewbox.dimensions()[NR::Y],
1281 viewbox.dimensions()[NR::Y]);
1282 gtk_adjustment_set_value(dtw->vadj, viewbox.min()[NR::Y]);
1284 dtw->update = 0;
1285 }
1288 /*
1289 Local Variables:
1290 mode:c++
1291 c-file-style:"stroustrup"
1292 c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
1293 indent-tabs-mode:nil
1294 fill-column:99
1295 End:
1296 */
1297 // vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :