#define __SP_DESKTOP_WIDGET_C__

#ifdef HAVE_CONFIG_H

# include "config.h"

#endif

#include <gtkmm/paned.h>

#include <gtk/gtk.h>

#include "macros.h"

#include "inkscape-private.h"

#include "desktop-handles.h"

#include "desktop-events.h"

#include "document.h"

#include "desktop-widget.h"

#include "sp-namedview.h"

#include "interface.h"

#include "toolbox.h"

#include "prefs-utils.h"

#include "file.h"

#include "display/canvas-arena.h"

#include "display/nr-arena.h"

#include <extension/db.h>

#include "helper/units.h"

#include "widgets/button.h"

#include "widgets/ruler.h"

#include "widgets/widget-sizes.h"

#include "widgets/spw-utilities.h"

#include "widgets/spinbutton-events.h"

#include "widgets/layer-selector.h"

#include "ui/dialog/dialog-manager.h"

#include "ui/widget/dock.h"

#include "ui/widget/selected-style.h"

#include "sp-item.h"

#include "dialogs/swatches.h"

#include "conn-avoid-ref.h"

#include "ege-select-one-action.h"

#if defined (SOLARIS_2_8)

#include "round.h"

using Inkscape::round;

#endif

#ifdef WITH_INKBOARD

#endif

enum {

ACTIVATE,

DEACTIVATE,

MODIFIED,

EVENT_CONTEXT_CHANGED,

LAST_SIGNAL

};

static void sp_desktop_widget_class_init (SPDesktopWidgetClass *klass);

static void sp_desktop_widget_init (SPDesktopWidget *widget);

static void sp_desktop_widget_destroy (GtkObject *object);

static void sp_desktop_widget_size_allocate (GtkWidget *widget, GtkAllocation *allocation);

static void sp_desktop_widget_realize (GtkWidget *widget);

static gint sp_desktop_widget_event (GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw);

static void sp_desktop_widget_adjustment_value_changed (GtkAdjustment *adj, SPDesktopWidget *dtw);

static void sp_desktop_widget_namedview_modified (SPObject *obj, guint flags, SPDesktopWidget *dtw);

static gdouble sp_dtw_zoom_value_to_display (gdouble value);

static gdouble sp_dtw_zoom_display_to_value (gdouble value);

static gint sp_dtw_zoom_input (GtkSpinButton *spin, gdouble *new_val, gpointer data);

static bool sp_dtw_zoom_output (GtkSpinButton *spin, gpointer data);

static void sp_dtw_zoom_value_changed (GtkSpinButton *spin, gpointer data);

static void sp_dtw_zoom_populate_popup (GtkEntry *entry, GtkMenu *menu, gpointer data);

static void sp_dtw_zoom_menu_handler (SPDesktop *dt, gdouble factor);

static void sp_dtw_zoom_50 (GtkMenuItem *item, gpointer data);

static void sp_dtw_zoom_100 (GtkMenuItem *item, gpointer data);

static void sp_dtw_zoom_200 (GtkMenuItem *item, gpointer data);

static void sp_dtw_zoom_page (GtkMenuItem *item, gpointer data);

static void sp_dtw_zoom_drawing (GtkMenuItem *item, gpointer data);

static void sp_dtw_zoom_selection (GtkMenuItem *item, gpointer data);

SPViewWidgetClass *dtw_parent_class;

SPDesktopWidget::setMessage (Inkscape::MessageType type, const gchar *message)

{

GtkLabel *sb=GTK_LABEL(this->select_status);

gtk_label_set_markup (sb, message ? message : "");

// make sure the important messages are displayed immediately!

if (type == Inkscape::IMMEDIATE_MESSAGE && GTK_WIDGET_DRAWABLE (GTK_WIDGET(sb))) {

gtk_widget_queue_draw(GTK_WIDGET(sb));

gdk_window_process_updates(GTK_WIDGET(sb)->window, TRUE);

}

// FIXME: TODO: remove <b></b> before displaying as tooltip

gtk_tooltips_set_tip (this->tt, this->select_status_eventbox, message ? message : "", NULL);

}

NR::Point

SPDesktopWidget::window_get_pointer()

{

gint x,y;

gdk_window_get_pointer (GTK_WIDGET (canvas)->window, &x, &y, NULL);

return NR::Point(x,y);

}

sp_desktop_widget_get_type (void)

{

static GtkType type = 0;

if (!type) {

static const GtkTypeInfo info = {

"SPDesktopWidget",

sizeof (SPDesktopWidget),

sizeof (SPDesktopWidgetClass),

(GtkClassInitFunc) sp_desktop_widget_class_init,

(GtkObjectInitFunc) sp_desktop_widget_init,

NULL, NULL, NULL

};

type = gtk_type_unique (SP_TYPE_VIEW_WIDGET, &info);

}

return type;

}

static void

sp_desktop_widget_class_init (SPDesktopWidgetClass *klass)

{

dtw_parent_class = (SPViewWidgetClass*)gtk_type_class (SP_TYPE_VIEW_WIDGET);

GtkObjectClass *object_class = (GtkObjectClass *) klass;

GtkWidgetClass *widget_class = (GtkWidgetClass *) klass;

object_class->destroy = sp_desktop_widget_destroy;

widget_class->size_allocate = sp_desktop_widget_size_allocate;

widget_class->realize = sp_desktop_widget_realize;

}

static void

sp_desktop_widget_init (SPDesktopWidget *dtw)

{

GtkWidget *widget;

GtkWidget *tbl;

GtkWidget *canvas_tbl;

GtkWidget *hbox;

GtkWidget *eventbox;

GtkStyle *style;

new (&dtw->modified_connection) sigc::connection();

widget = GTK_WIDGET (dtw);

dtw->window = 0;

dtw->desktop = NULL;

dtw->_interaction_disabled_counter = 0;

dtw->tt = gtk_tooltips_new ();

/* Main table */

dtw->vbox = gtk_vbox_new (FALSE, 0);

gtk_container_add( GTK_CONTAINER(dtw), GTK_WIDGET(dtw->vbox) );

dtw->statusbar = gtk_hbox_new (FALSE, 0);

//gtk_widget_set_usize (dtw->statusbar, -1, BOTTOM_BAR_HEIGHT);

gtk_box_pack_end (GTK_BOX (dtw->vbox), dtw->statusbar, FALSE, TRUE, 0);

{

using Inkscape::UI::Dialogs::SwatchesPanel;

SwatchesPanel* swatches = new SwatchesPanel("embedded.swatches");

swatches->setOrientation( Gtk::ANCHOR_SOUTH );

dtw->panels = GTK_WIDGET(swatches->gobj());

gtk_box_pack_end( GTK_BOX( dtw->vbox ), dtw->panels, FALSE, TRUE, 0 );

}

hbox = gtk_hbox_new (FALSE, 0);

gtk_box_pack_end (GTK_BOX (dtw->vbox), hbox, TRUE, TRUE, 0);

gtk_widget_show (hbox);

dtw->aux_toolbox = sp_aux_toolbox_new ();

gtk_box_pack_end (GTK_BOX (dtw->vbox), dtw->aux_toolbox, FALSE, TRUE, 0);

dtw->commands_toolbox = sp_commands_toolbox_new ();

gtk_box_pack_end (GTK_BOX (dtw->vbox), dtw->commands_toolbox, FALSE, TRUE, 0);

dtw->tool_toolbox = sp_tool_toolbox_new ();

gtk_box_pack_start (GTK_BOX (hbox), dtw->tool_toolbox, FALSE, TRUE, 0);

tbl = gtk_table_new (2, 3, FALSE);

gtk_box_pack_start (GTK_BOX (hbox), tbl, TRUE, TRUE, 1);

canvas_tbl = gtk_table_new (3, 3, FALSE);

/* Horizontal ruler */

eventbox = gtk_event_box_new ();

dtw->hruler = sp_hruler_new ();

dtw->hruler_box = eventbox;

sp_ruler_set_metric (GTK_RULER (dtw->hruler), SP_PT);

gtk_tooltips_set_tip (dtw->tt, dtw->hruler_box, gettext(sp_unit_get_plural (&sp_unit_get_by_id(SP_UNIT_PT))), NULL);

gtk_container_add (GTK_CONTAINER (eventbox), dtw->hruler);

gtk_table_attach (GTK_TABLE (canvas_tbl), eventbox, 1, 2, 0, 1, (GtkAttachOptions)(GTK_FILL), (GtkAttachOptions)(GTK_FILL), widget->style->xthickness, 0);

g_signal_connect (G_OBJECT (eventbox), "button_press_event", G_CALLBACK (sp_dt_hruler_event), dtw);

g_signal_connect (G_OBJECT (eventbox), "button_release_event", G_CALLBACK (sp_dt_hruler_event), dtw);

g_signal_connect (G_OBJECT (eventbox), "motion_notify_event", G_CALLBACK (sp_dt_hruler_event), dtw);

/* Vertical ruler */

eventbox = gtk_event_box_new ();

dtw->vruler = sp_vruler_new ();

dtw->vruler_box = eventbox;

sp_ruler_set_metric (GTK_RULER (dtw->vruler), SP_PT);

gtk_tooltips_set_tip (dtw->tt, dtw->vruler_box, gettext(sp_unit_get_plural (&sp_unit_get_by_id(SP_UNIT_PT))), NULL);

gtk_container_add (GTK_CONTAINER (eventbox), GTK_WIDGET (dtw->vruler));

gtk_table_attach (GTK_TABLE (canvas_tbl), eventbox, 0, 1, 1, 2, (GtkAttachOptions)(GTK_FILL), (GtkAttachOptions)(GTK_FILL), 0, widget->style->ythickness);

g_signal_connect (G_OBJECT (eventbox), "button_press_event", G_CALLBACK (sp_dt_vruler_event), dtw);

g_signal_connect (G_OBJECT (eventbox), "button_release_event", G_CALLBACK (sp_dt_vruler_event), dtw);

g_signal_connect (G_OBJECT (eventbox), "motion_notify_event", G_CALLBACK (sp_dt_vruler_event), dtw);

/* Horizontal scrollbar */

dtw->hadj = (GtkAdjustment *) gtk_adjustment_new (0.0, -4000.0, 4000.0, 10.0, 100.0, 4.0);

dtw->hscrollbar = gtk_hscrollbar_new (GTK_ADJUSTMENT (dtw->hadj));

gtk_table_attach (GTK_TABLE (canvas_tbl), dtw->hscrollbar, 1, 2, 2, 3, (GtkAttachOptions)(GTK_FILL), (GtkAttachOptions)(GTK_SHRINK), 0, 0);

/* Vertical scrollbar and the sticky zoom button */

dtw->vscrollbar_box = gtk_vbox_new (FALSE, 0);

dtw->sticky_zoom = sp_button_new_from_data ( Inkscape::ICON_SIZE_DECORATION,

SP_BUTTON_TYPE_TOGGLE,

NULL,

"sticky_zoom",

_("Zoom drawing if window size changes"),

dtw->tt);

gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (dtw->sticky_zoom), prefs_get_int_attribute ("options.stickyzoom", "value", 0));

gtk_box_pack_start (GTK_BOX (dtw->vscrollbar_box), dtw->sticky_zoom, FALSE, FALSE, 0);

dtw->vadj = (GtkAdjustment *) gtk_adjustment_new (0.0, -4000.0, 4000.0, 10.0, 100.0, 4.0);

dtw->vscrollbar = gtk_vscrollbar_new (GTK_ADJUSTMENT (dtw->vadj));

gtk_box_pack_start (GTK_BOX (dtw->vscrollbar_box), dtw->vscrollbar, TRUE, TRUE, 0);

gtk_table_attach (GTK_TABLE (canvas_tbl), dtw->vscrollbar_box, 2, 3, 0, 2, (GtkAttachOptions)(GTK_SHRINK), (GtkAttachOptions)(GTK_FILL), 0, 0);

/* Canvas */

dtw->canvas = SP_CANVAS (sp_canvas_new_aa ());

GTK_WIDGET_SET_FLAGS (GTK_WIDGET (dtw->canvas), GTK_CAN_FOCUS);

style = gtk_style_copy (GTK_WIDGET (dtw->canvas)->style);

style->bg[GTK_STATE_NORMAL] = style->white;

gtk_widget_set_style (GTK_WIDGET (dtw->canvas), style);

gtk_widget_set_extension_events(GTK_WIDGET (dtw->canvas) , GDK_EXTENSION_EVENTS_ALL);

g_signal_connect (G_OBJECT (dtw->canvas), "event", G_CALLBACK (sp_desktop_widget_event), dtw);

gtk_table_attach (GTK_TABLE (canvas_tbl), GTK_WIDGET(dtw->canvas), 1, 2, 1, 2, (GtkAttachOptions)(GTK_FILL | GTK_EXPAND), (GtkAttachOptions)(GTK_FILL | GTK_EXPAND), 0, 0);

/* Dock */

bool create_dock =

prefs_get_int_attribute_limited ("options.dialogtype", "value", Inkscape::UI::Dialog::FLOATING, 0, 1) ==

Inkscape::UI::Dialog::DOCK;

if (create_dock)

{

dtw->dock = new Inkscape::UI::Widget::Dock();

Gtk::HPaned *paned = new Gtk::HPaned();

paned->pack1(*Glib::wrap(canvas_tbl));

paned->pack2(dtw->dock->getWidget(), Gtk::FILL);

gtk_table_attach (GTK_TABLE (tbl), GTK_WIDGET (paned->gobj()), 1, 2, 1, 2, (GtkAttachOptions)(GTK_EXPAND | GTK_FILL),

(GtkAttachOptions)(GTK_EXPAND | GTK_FILL), 0, 0);

} else {

gtk_table_attach (GTK_TABLE (tbl), GTK_WIDGET (canvas_tbl), 1, 2, 1, 2, (GtkAttachOptions)(GTK_EXPAND | GTK_FILL),

(GtkAttachOptions)(GTK_EXPAND | GTK_FILL), 0, 0);

}

dtw->selected_style = new Inkscape::UI::Widget::SelectedStyle(true);

GtkHBox *ss_ = dtw->selected_style->gobj();

gtk_box_pack_start (GTK_BOX (dtw->statusbar), GTK_WIDGET(ss_), FALSE, FALSE, 0);

gtk_box_pack_start (GTK_BOX (dtw->statusbar), gtk_vseparator_new(), FALSE, FALSE, 0);

// connect scrollbar signals

g_signal_connect (G_OBJECT (dtw->hadj), "value-changed", G_CALLBACK (sp_desktop_widget_adjustment_value_changed), dtw);

g_signal_connect (G_OBJECT (dtw->vadj), "value-changed", G_CALLBACK (sp_desktop_widget_adjustment_value_changed), dtw);

GtkWidget *statusbar_tail=gtk_statusbar_new();

gtk_statusbar_set_has_resize_grip(GTK_STATUSBAR(statusbar_tail), TRUE);

gtk_box_pack_end (GTK_BOX (dtw->statusbar), statusbar_tail, FALSE, FALSE, 0);

// zoom status spinbutton

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);

gtk_tooltips_set_tip (dtw->tt, dtw->zoom_status, _("Zoom"), NULL);

gtk_widget_set_size_request (dtw->zoom_status, STATUS_ZOOM_WIDTH, -1);

gtk_entry_set_width_chars (GTK_ENTRY (dtw->zoom_status), 6);

gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (dtw->zoom_status), FALSE);

gtk_spin_button_set_update_policy (GTK_SPIN_BUTTON (dtw->zoom_status), GTK_UPDATE_ALWAYS);

g_signal_connect (G_OBJECT (dtw->zoom_status), "input", G_CALLBACK (sp_dtw_zoom_input), dtw);

g_signal_connect (G_OBJECT (dtw->zoom_status), "output", G_CALLBACK (sp_dtw_zoom_output), dtw);

gtk_object_set_data (GTK_OBJECT (dtw->zoom_status), "dtw", dtw->canvas);

gtk_signal_connect (GTK_OBJECT (dtw->zoom_status), "focus-in-event", GTK_SIGNAL_FUNC (spinbutton_focus_in), dtw->zoom_status);

gtk_signal_connect (GTK_OBJECT (dtw->zoom_status), "key-press-event", GTK_SIGNAL_FUNC (spinbutton_keypress), dtw->zoom_status);

dtw->zoom_update = g_signal_connect (G_OBJECT (dtw->zoom_status), "value_changed", G_CALLBACK (sp_dtw_zoom_value_changed), dtw);

dtw->zoom_update = g_signal_connect (G_OBJECT (dtw->zoom_status), "populate_popup", G_CALLBACK (sp_dtw_zoom_populate_popup), dtw);

// cursor coordinates

dtw->coord_status = gtk_table_new (5, 2, FALSE);

gtk_table_set_row_spacings(GTK_TABLE(dtw->coord_status), 0);

gtk_table_set_col_spacings(GTK_TABLE(dtw->coord_status), 2);

gtk_table_attach(GTK_TABLE(dtw->coord_status), gtk_vseparator_new(), 0,1, 0,2, GTK_FILL, GTK_FILL, 0, 0);

eventbox = gtk_event_box_new ();

gtk_container_add (GTK_CONTAINER (eventbox), dtw->coord_status);

gtk_tooltips_set_tip (dtw->tt, eventbox, _("Cursor coordinates"), NULL);

GtkWidget *label_x = gtk_label_new("X:");

gtk_misc_set_alignment (GTK_MISC(label_x), 0.0, 0.5);

gtk_table_attach(GTK_TABLE(dtw->coord_status), label_x, 1,2, 0,1, GTK_FILL, GTK_FILL, 0, 0);

GtkWidget *label_y = gtk_label_new("Y:");

gtk_misc_set_alignment (GTK_MISC(label_y), 0.0, 0.5);

gtk_table_attach(GTK_TABLE(dtw->coord_status), label_y, 1,2, 1,2, GTK_FILL, GTK_FILL, 0, 0);

dtw->coord_status_x = gtk_label_new(NULL);

gtk_label_set_markup( GTK_LABEL(dtw->coord_status_x), "<tt> 0.00 </tt>" );

gtk_misc_set_alignment (GTK_MISC(dtw->coord_status_x), 1.0, 0.5);

dtw->coord_status_y = gtk_label_new(NULL);

gtk_label_set_markup( GTK_LABEL(dtw->coord_status_y), "<tt> 0.00 </tt>" );

gtk_misc_set_alignment (GTK_MISC(dtw->coord_status_y), 1.0, 0.5);

gtk_table_attach(GTK_TABLE(dtw->coord_status), dtw->coord_status_x, 2,3, 0,1, GTK_FILL, GTK_FILL, 0, 0);

gtk_table_attach(GTK_TABLE(dtw->coord_status), dtw->coord_status_y, 2,3, 1,2, GTK_FILL, GTK_FILL, 0, 0);

gtk_table_attach(GTK_TABLE(dtw->coord_status), gtk_label_new("Z:"), 3,4, 0,2, GTK_FILL, GTK_FILL, 0, 0);

gtk_table_attach(GTK_TABLE(dtw->coord_status), dtw->zoom_status, 4,5, 0,2, GTK_FILL, GTK_FILL, 0, 0);

sp_set_font_size_smaller (dtw->coord_status);

gtk_box_pack_end (GTK_BOX (statusbar_tail), eventbox, FALSE, FALSE, 1);

dtw->layer_selector = new Inkscape::Widgets::LayerSelector(NULL);

// FIXME: need to unreference on container destruction to avoid leak

dtw->layer_selector->reference();

//dtw->layer_selector->set_size_request(-1, SP_ICON_SIZE_BUTTON);

gtk_box_pack_start(GTK_BOX(dtw->statusbar), GTK_WIDGET(dtw->layer_selector->gobj()), FALSE, FALSE, 1);

dtw->select_status_eventbox = gtk_event_box_new ();

dtw->select_status = gtk_label_new (NULL);

#if GTK_MAJOR_VERSION == 2 && GTK_MINOR_VERSION >= 6

gtk_label_set_ellipsize (GTK_LABEL(dtw->select_status), PANGO_ELLIPSIZE_END);

#endif

gtk_misc_set_alignment (GTK_MISC (dtw->select_status), 0.0, 0.5);

gtk_widget_set_size_request (dtw->select_status, 1, -1);

// display the initial welcome message in the statusbar

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."));

// space label 2 pixels from left edge

gtk_container_add (GTK_CONTAINER (dtw->select_status_eventbox), dtw->select_status);

gtk_box_pack_start (GTK_BOX (dtw->statusbar), gtk_hbox_new(FALSE, 0), FALSE, FALSE, 2);

gtk_box_pack_start (GTK_BOX (dtw->statusbar), dtw->select_status_eventbox, TRUE, TRUE, 0);

gtk_widget_show_all (dtw->vbox);

}

static void

sp_desktop_widget_destroy (GtkObject *object)

{

SPDesktopWidget *dtw = SP_DESKTOP_WIDGET (object);

if (dtw->desktop) {

g_signal_handlers_disconnect_by_func(G_OBJECT (dtw->zoom_status), (gpointer) G_CALLBACK(sp_dtw_zoom_input), dtw);

g_signal_handlers_disconnect_by_func(G_OBJECT (dtw->zoom_status), (gpointer) G_CALLBACK(sp_dtw_zoom_output), dtw);

gtk_signal_disconnect_by_data (GTK_OBJECT (dtw->zoom_status), dtw->zoom_status);

g_signal_handlers_disconnect_by_func (G_OBJECT (dtw->zoom_status), (gpointer) G_CALLBACK (sp_dtw_zoom_value_changed), dtw);

g_signal_handlers_disconnect_by_func (G_OBJECT (dtw->zoom_status), (gpointer) G_CALLBACK (sp_dtw_zoom_populate_popup), dtw);

g_signal_handlers_disconnect_by_func (G_OBJECT (dtw->canvas), (gpointer) G_CALLBACK (sp_desktop_widget_event), dtw);

dtw->layer_selector->unreference();

inkscape_remove_desktop (dtw->desktop); // clears selection too

dtw->modified_connection.disconnect();

dtw->desktop->destroy();

Inkscape::GC::release (dtw->desktop);

dtw->desktop = NULL;

}

dtw->modified_connection.~connection();

if (GTK_OBJECT_CLASS (dtw_parent_class)->destroy) {

(* GTK_OBJECT_CLASS (dtw_parent_class)->destroy) (object);

}

}

SPDesktopWidget::updateTitle(gchar const* uri)

{

Gtk::Window *window = (Gtk::Window*)gtk_object_get_data (GTK_OBJECT(this), "window");

if (window) {

gchar const *fname = ( TRUE

? uri

: g_basename(uri) );

GString *name = g_string_new ("");

if (this->desktop->number > 1) {

if (this->desktop->getMode() == RENDERMODE_OUTLINE) {

g_string_printf (name, _("%s: %d (outline) - Inkscape"), fname, this->desktop->number);

} else {

g_string_printf (name, _("%s: %d - Inkscape"), fname, this->desktop->number);

}

} else {

if (this->desktop->getMode() == RENDERMODE_OUTLINE) {

g_string_printf (name, _("%s (outline) - Inkscape"), fname);

} else {

g_string_printf (name, _("%s - Inkscape"), fname);

}

}

window->set_title (name->str);

g_string_free (name, TRUE);

}

}

Inkscape::UI::Widget::Dock*

SPDesktopWidget::getDock()

{

return dock;

}

static void

sp_desktop_widget_size_allocate (GtkWidget *widget, GtkAllocation *allocation)

{

SPDesktopWidget *dtw = SP_DESKTOP_WIDGET (widget);

if ((allocation->x == widget->allocation.x) &&

(allocation->y == widget->allocation.y) &&

(allocation->width == widget->allocation.width) &&

(allocation->height == widget->allocation.height)) {

if (GTK_WIDGET_CLASS (dtw_parent_class)->size_allocate)

GTK_WIDGET_CLASS (dtw_parent_class)->size_allocate (widget, allocation);

return;

}

if (GTK_WIDGET_REALIZED (widget)) {

NR::Rect const area = dtw->desktop->get_display_area();

double zoom = dtw->desktop->current_zoom();

if (GTK_WIDGET_CLASS(dtw_parent_class)->size_allocate) {

GTK_WIDGET_CLASS(dtw_parent_class)->size_allocate (widget, allocation);

}

if (SP_BUTTON_IS_DOWN(dtw->sticky_zoom)) {

/* Calculate zoom per pixel */

double const zpsp = zoom / hypot (area.dimensions()[NR::X], area.dimensions()[NR::Y]);

/* Find new visible area */

NR::Rect newarea = dtw->desktop->get_display_area();

/* Calculate adjusted zoom */

zoom = zpsp * hypot(newarea.dimensions()[NR::X], newarea.dimensions()[NR::Y]);

dtw->desktop->zoom_absolute(newarea.midpoint()[NR::X], newarea.midpoint()[NR::Y], zoom);

} else {

dtw->desktop->zoom_absolute(area.midpoint()[NR::X], area.midpoint()[NR::Y], zoom);

}

} else {

if (GTK_WIDGET_CLASS (dtw_parent_class)->size_allocate) {

GTK_WIDGET_CLASS (dtw_parent_class)->size_allocate (widget, allocation);

}

}

}

static void

sp_desktop_widget_realize (GtkWidget *widget)

{

SPDesktopWidget *dtw = SP_DESKTOP_WIDGET (widget);

if (GTK_WIDGET_CLASS (dtw_parent_class)->realize)

(* GTK_WIDGET_CLASS (dtw_parent_class)->realize) (widget);

NRRect d;

d.x0 = 0.0;

d.y0 = 0.0;

d.x1 = sp_document_width (dtw->desktop->doc());

d.y1 = sp_document_height (dtw->desktop->doc());

if ((fabs (d.x1 - d.x0) < 1.0) || (fabs (d.y1 - d.y0) < 1.0)) return;

dtw->desktop->set_display_area (d.x0, d.y0, d.x1, d.y1, 10);

/* Listen on namedview modification */

// originally (prior to the sigc++ conversion) the signal was simply

// connected twice rather than disconnecting the first connection

dtw->modified_connection.disconnect();

dtw->modified_connection = dtw->desktop->namedview->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_desktop_widget_namedview_modified), dtw));

sp_desktop_widget_namedview_modified (dtw->desktop->namedview, SP_OBJECT_MODIFIED_FLAG, dtw);

dtw->updateTitle(SP_DOCUMENT_NAME (dtw->desktop->doc()));

}

static gint

sp_desktop_widget_event (GtkWidget *widget, GdkEvent *event, SPDesktopWidget *dtw)

{

if (event->type == GDK_BUTTON_PRESS) {

// defocus any spinbuttons

gtk_widget_grab_focus (GTK_WIDGET(dtw->canvas));

}

if ((event->type == GDK_BUTTON_PRESS) && (event->button.button == 3)) {

if (event->button.state & GDK_SHIFT_MASK) {

sp_canvas_arena_set_sticky (SP_CANVAS_ARENA (dtw->desktop->drawing), TRUE);

} else {

sp_canvas_arena_set_sticky (SP_CANVAS_ARENA (dtw->desktop->drawing), FALSE);

}

}

if (GTK_WIDGET_CLASS (dtw_parent_class)->event) {

return (* GTK_WIDGET_CLASS (dtw_parent_class)->event) (widget, event);

} else {

// The keypress events need to be passed to desktop handler explicitly,

// because otherwise the event contexts only receive keypresses when the mouse cursor

// is over the canvas. This redirection is only done for keypresses and only if there's no

// current item on the canvas, because item events and all mouse events are caught

// and passed on by the canvas acetate (I think). --bb

if (event->type == GDK_KEY_PRESS && !dtw->canvas->current_item) {

return sp_desktop_root_handler (NULL, event, dtw->desktop);

}

}

return FALSE;

}

sp_dtw_desktop_activate (SPDesktopWidget *dtw)

{

/* update active desktop indicator */

}

sp_dtw_desktop_deactivate (SPDesktopWidget *dtw)

{

/* update inactive desktop indicator */

}

SPDesktopWidget::shutdown()

{

g_assert(desktop != NULL);

if (inkscape_is_sole_desktop_for_document(*desktop)) {

SPDocument *doc = desktop->doc();

if (sp_document_repr_root(doc)->attribute("sodipodi:modified") != NULL) {

GtkWidget *dialog;

/** \todo

dialog = gtk_message_dialog_new_with_markup(

GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this))),

GTK_DIALOG_DESTROY_WITH_PARENT,

GTK_MESSAGE_WARNING,

GTK_BUTTONS_NONE,

_("<span weight=\"bold\" size=\"larger\">Save changes to document \"%s\" before closing?</span>\n\n"

"If you close without saving, your changes will be discarded."),

SP_DOCUMENT_NAME(doc));

// fix for bug 1767940:

GTK_WIDGET_UNSET_FLAGS(GTK_WIDGET(GTK_MESSAGE_DIALOG(dialog)->label), GTK_CAN_FOCUS);

GtkWidget *close_button;

close_button = gtk_button_new_with_mnemonic(_("Close _without saving"));

gtk_widget_show(close_button);

gtk_dialog_add_action_widget(GTK_DIALOG(dialog), close_button, GTK_RESPONSE_NO);

gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);

gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_SAVE, GTK_RESPONSE_YES);

gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_YES);

gint response;

response = gtk_dialog_run(GTK_DIALOG(dialog));

gtk_widget_destroy(dialog);

switch (response) {

case GTK_RESPONSE_YES:

{

Gtk::Window *window = (Gtk::Window*)gtk_object_get_data (GTK_OBJECT(this), "window");

sp_document_ref(doc);

if (sp_file_save_document(*window, doc)) {

sp_document_unref(doc);

} else { // save dialog cancelled or save failed

sp_document_unref(doc);

return TRUE;

}

break;

}

case GTK_RESPONSE_NO:

break;

default: // cancel pressed, or dialog was closed

return TRUE;

break;

}

}

/* Code to check data loss */

bool allow_data_loss = FALSE;

while (sp_document_repr_root(doc)->attribute("inkscape:dataloss") != NULL && allow_data_loss == FALSE) {

GtkWidget *dialog;

/** \todo

dialog = gtk_message_dialog_new_with_markup(

GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this))),

GTK_DIALOG_DESTROY_WITH_PARENT,

GTK_MESSAGE_WARNING,

GTK_BUTTONS_NONE,

_("<span weight=\"bold\" size=\"larger\">The file \"%s\" was saved with a format (%s) that may cause data loss!</span>\n\n"

"Do you want to save this file in another format?"),

SP_DOCUMENT_NAME(doc),

Inkscape::Extension::db.get(sp_document_repr_root(doc)->attribute("inkscape:output_extension"))->get_name());

// fix for bug 1767940:

GTK_WIDGET_UNSET_FLAGS(GTK_WIDGET(GTK_MESSAGE_DIALOG(dialog)->label), GTK_CAN_FOCUS);

GtkWidget *close_button;

close_button = gtk_button_new_with_mnemonic(_("Close _without saving"));

gtk_widget_show(close_button);

gtk_dialog_add_action_widget(GTK_DIALOG(dialog), close_button, GTK_RESPONSE_NO);

gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL);

gtk_dialog_add_button(GTK_DIALOG(dialog), GTK_STOCK_SAVE, GTK_RESPONSE_YES);

gtk_dialog_set_default_response(GTK_DIALOG(dialog), GTK_RESPONSE_YES);

gint response;

response = gtk_dialog_run(GTK_DIALOG(dialog));

gtk_widget_destroy(dialog);

switch (response) {

case GTK_RESPONSE_YES:

{

sp_document_ref(doc);

Gtk::Window *window = (Gtk::Window*)gtk_object_get_data (GTK_OBJECT(this), "window");

if (sp_file_save_dialog(*window, doc)) {

sp_document_unref(doc);

} else { // save dialog cancelled or save failed

sp_document_unref(doc);

return TRUE;

}

break;

}

case GTK_RESPONSE_NO:

allow_data_loss = TRUE;

break;

default: // cancel pressed, or dialog was closed

return TRUE;

break;

}

}

}

/* Save window geometry to prefs for use as a default.

{

gint full = desktop->is_fullscreen() ? 1 : 0;

gint maxed = desktop->is_maximized() ? 1 : 0;

prefs_set_int_attribute("desktop.geometry", "fullscreen", full);

prefs_set_int_attribute("desktop.geometry", "maximized", maxed);

gint w, h, x, y;

desktop->getWindowGeometry(x, y, w, h);

// Don't save geom for maximized windows. It

// just tells you the current maximized size, which is not

// as useful as whatever value it had previously.

if (!maxed && !full) {

prefs_set_int_attribute("desktop.geometry", "width", w);

prefs_set_int_attribute("desktop.geometry", "height", h);

prefs_set_int_attribute("desktop.geometry", "x", x);

prefs_set_int_attribute("desktop.geometry", "y", y);

}

}

return FALSE;

}

SPDesktopWidget::requestCanvasUpdate() {

gtk_widget_queue_draw (GTK_WIDGET (SP_CANVAS_ITEM (this->desktop->main)->canvas));

}

SPDesktopWidget::requestCanvasUpdateAndWait() {

requestCanvasUpdate();

while (gtk_events_pending())

gtk_main_iteration_do(FALSE);

}

SPDesktopWidget::enableInteraction()

{

g_return_if_fail(_interaction_disabled_counter > 0);

_interaction_disabled_counter--;

if (_interaction_disabled_counter == 0) {

gtk_widget_set_sensitive(GTK_WIDGET(this), TRUE);

}

}

SPDesktopWidget::disableInteraction()

{

if (_interaction_disabled_counter == 0) {

gtk_widget_set_sensitive(GTK_WIDGET(this), FALSE);

}

_interaction_disabled_counter++;

}

SPDesktopWidget::setCoordinateStatus(NR::Point p)

{

gchar *cstr;

cstr = g_strdup_printf("<tt>%7.2f </tt>", dt2r * p[NR::X]);

gtk_label_set_markup( GTK_LABEL(this->coord_status_x), cstr );

g_free(cstr);

cstr = g_strdup_printf("<tt>%7.2f </tt>", dt2r * p[NR::Y]);

gtk_label_set_markup( GTK_LABEL(this->coord_status_y), cstr );

g_free(cstr);

}

SPDesktopWidget::letZoomGrabFocus()

{

if (zoom_status)

gtk_widget_grab_focus (zoom_status);

}

SPDesktopWidget::getWindowGeometry (gint &x, gint &y, gint &w, gint &h)

{

gboolean vis = GTK_WIDGET_VISIBLE (this);

Gtk::Window *window = (Gtk::Window*)gtk_object_get_data (GTK_OBJECT(this), "window");

if (window)

{

window->get_size (w, h);

window->get_position (x, y);

}

}

SPDesktopWidget::setWindowPosition (NR::Point p)

{

Gtk::Window *window = (Gtk::Window*)gtk_object_get_data (GTK_OBJECT(this), "window");

if (window)

{

window->move (gint(round(p[NR::X])), gint(round(p[NR::Y])));

}

}

SPDesktopWidget::setWindowSize (gint w, gint h)

{

Gtk::Window *window = (Gtk::Window*)gtk_object_get_data (GTK_OBJECT(this), "window");

if (window)

{

window->set_default_size (w, h);

window->reshow_with_initial_size ();

}

}

SPDesktopWidget::setWindowTransient (void *p, int transient_policy)

{

GtkWindow *w =GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this)));

if (w)

{

gtk_window_set_transient_for (GTK_WINDOW(p), w);

/*

if (transient_policy == 2)

// without this, a transient window not always emerges on top

gtk_window_present (w);

}

}

SPDesktopWidget::presentWindow()

{

GtkWindow *w =GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this)));

if (w)

gtk_window_present (w);

}

SPDesktopWidget::warnDialog (gchar* text)

{

GtkWindow *w =GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(this)));

if (w)

{

GtkWidget *dialog = gtk_message_dialog_new(

w,

GTK_DIALOG_DESTROY_WITH_PARENT,

GTK_MESSAGE_WARNING,

GTK_BUTTONS_YES_NO,

"%s", text);

gint response = gtk_dialog_run(GTK_DIALOG(dialog));

gtk_widget_destroy(dialog);

if (response == GTK_RESPONSE_YES)

return true;

}

return false;

}

sp_desktop_widget_iconify(SPDesktopWidget *dtw)

{

GtkWindow *topw = GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(dtw->canvas)));

if (GTK_IS_WINDOW(topw)) {

if (dtw->desktop->is_iconified()) {

gtk_window_deiconify(topw);

} else {

gtk_window_iconify(topw);

}

}

}

sp_desktop_widget_maximize(SPDesktopWidget *dtw)

{

GtkWindow *topw = GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(dtw->canvas)));

if (GTK_IS_WINDOW(topw)) {

if (dtw->desktop->is_maximized()) {

gtk_window_unmaximize(topw);

} else {

// Save geometry to prefs before maximizing so that

// something useful is stored there, because GTK doesn't maintain

// a separate non-maximized size.

if (!dtw->desktop->is_iconified() && !dtw->desktop->is_fullscreen())

{

gint w, h, x, y;

dtw->getWindowGeometry(x, y, w, h);

prefs_set_int_attribute("desktop.geometry", "width", w);

prefs_set_int_attribute("desktop.geometry", "height", h);

prefs_set_int_attribute("desktop.geometry", "x", x);

prefs_set_int_attribute("desktop.geometry", "y", y);

}

gtk_window_maximize(topw);

}

}

}

sp_desktop_widget_fullscreen(SPDesktopWidget *dtw)

{

#ifdef HAVE_GTK_WINDOW_FULLSCREEN

GtkWindow *topw = GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(dtw->canvas)));

if (GTK_IS_WINDOW(topw)) {

if (dtw->desktop->is_fullscreen()) {

gtk_window_unfullscreen(topw);

// widget layout is triggered by the resulting window_state_event

} else {

// Save geometry to prefs before maximizing so that

// something useful is stored there, because GTK doesn't maintain

// a separate non-maximized size.

if (!dtw->desktop->is_iconified() && !dtw->desktop->is_maximized())

{

gint w, h, x, y;

dtw->getWindowGeometry(x, y, w, h);

prefs_set_int_attribute("desktop.geometry", "width", w);

prefs_set_int_attribute("desktop.geometry", "height", h);

prefs_set_int_attribute("desktop.geometry", "x", x);

prefs_set_int_attribute("desktop.geometry", "y", y);

}

gtk_window_fullscreen(topw);

// widget layout is triggered by the resulting window_state_event

}

}

#endif /* HAVE_GTK_WINDOW_FULLSCREEN */

}

sp_desktop_widget_layout (SPDesktopWidget *dtw)

{

bool fullscreen = dtw->desktop->is_fullscreen();

if (prefs_get_int_attribute (fullscreen ? "fullscreen.menu" : "window.menu", "state", 1) == 0) {

gtk_widget_hide_all (dtw->menubar);

} else {

gtk_widget_show_all (dtw->menubar);

}

if (prefs_get_int_attribute (fullscreen ? "fullscreen.commands" : "window.commands", "state", 1) == 0) {

gtk_widget_hide_all (dtw->commands_toolbox);

} else {

gtk_widget_show_all (dtw->commands_toolbox);

}

if (prefs_get_int_attribute (fullscreen ? "fullscreen.toppanel" : "window.toppanel", "state", 1) == 0) {

gtk_widget_hide_all (dtw->aux_toolbox);

} else {

// we cannot just show_all because that will show all tools' panels;

// this is a function from toolbox.cpp that shows only the current tool's panel

show_aux_toolbox (dtw->aux_toolbox);

}

if (prefs_get_int_attribute (fullscreen ? "fullscreen.toolbox" : "window.toolbox", "state", 1) == 0) {

gtk_widget_hide_all (dtw->tool_toolbox);

} else {

gtk_widget_show_all (dtw->tool_toolbox);

}

if (prefs_get_int_attribute (fullscreen ? "fullscreen.statusbar" : "window.statusbar", "state", 1) == 0) {

gtk_widget_hide_all (dtw->statusbar);

} else {

gtk_widget_show_all (dtw->statusbar);

}

if (prefs_get_int_attribute (fullscreen ? "fullscreen.panels" : "window.panels", "state", 1) == 0) {

gtk_widget_hide_all( dtw->panels );

} else {

gtk_widget_show_all( dtw->panels );

}

if (prefs_get_int_attribute (fullscreen ? "fullscreen.scrollbars" : "window.scrollbars", "state", 1) == 0) {

gtk_widget_hide_all (dtw->hscrollbar);

gtk_widget_hide_all (dtw->vscrollbar_box);

} else {

gtk_widget_show_all (dtw->hscrollbar);

gtk_widget_show_all (dtw->vscrollbar_box);

}

if (prefs_get_int_attribute (fullscreen ? "fullscreen.rulers" : "window.rulers", "state", 1) == 0) {

gtk_widget_hide_all (dtw->hruler);

gtk_widget_hide_all (dtw->vruler);

} else {

gtk_widget_show_all (dtw->hruler);

gtk_widget_show_all (dtw->vruler);

}

}

SPDesktopWidget::setToolboxFocusTo (const gchar* label)

{

gpointer hb = sp_search_by_data_recursive(aux_toolbox, (gpointer) label);

if (hb && GTK_IS_WIDGET(hb))

{

gtk_widget_grab_focus(GTK_WIDGET(hb));

}

}

SPDesktopWidget::setToolboxAdjustmentValue (gchar const *id, double value)

{

gpointer hb = sp_search_by_data_recursive (aux_toolbox, (gpointer) id);

if (hb && GTK_IS_WIDGET(hb) && GTK_IS_SPIN_BUTTON(hb)) {

GtkAdjustment *a = gtk_spin_button_get_adjustment (GTK_SPIN_BUTTON(hb));

gtk_adjustment_set_value (a, value);

}

}

SPDesktopWidget::setToolboxSelectOneValue (gchar const *id, int value)

{

gpointer hb = sp_search_by_data_recursive(aux_toolbox, (gpointer) id);

if (hb) {

ege_select_one_action_set_active((EgeSelectOneAction*) hb, value);

}

}

SPDesktopWidget::isToolboxButtonActive (const gchar* id)

{

bool isActive = false;

gpointer thing = sp_search_by_data_recursive(aux_toolbox, (gpointer) id);

if ( !thing ) {

//g_message( "Unable to locate item for {%s}", id );

} else if ( GTK_IS_TOGGLE_BUTTON(thing) ) {

GtkToggleButton *b = GTK_TOGGLE_BUTTON(thing);

isActive = gtk_toggle_button_get_active( b ) != 0;

} else if ( GTK_IS_TOGGLE_ACTION(thing) ) {

GtkToggleAction* act = GTK_TOGGLE_ACTION(thing);

isActive = gtk_toggle_action_get_active( act ) != 0;

} else {

//g_message( "Item for {%s} is of an unsupported type", id );

}

return isActive;

}

SPViewWidget *

sp_desktop_widget_new (SPNamedView *namedview)

{

SPDesktopWidget *dtw = (SPDesktopWidget*)gtk_type_new (SP_TYPE_DESKTOP_WIDGET);

dtw->dt2r = 1.0 / namedview->doc_units->unittobase;

dtw->ruler_origin = NR::Point(0,0); //namedview->gridorigin; Why was the grid origin used here?

dtw->desktop = new SPDesktop();

dtw->stub = new SPDesktopWidget::WidgetStub (dtw);

dtw->desktop->registerEditWidget (dtw->stub);

dtw->desktop->init (namedview, dtw->canvas);

inkscape_add_desktop (dtw->desktop);

// Add the shape geometry to libavoid for autorouting connectors.

// This needs desktop set for its spacing preferences.

init_avoided_shape_geometry(dtw->desktop);

dtw->selected_style->setDesktop(dtw->desktop);

/* Once desktop is set, we can update rulers */

sp_desktop_widget_update_rulers (dtw);

sp_view_widget_set_view (SP_VIEW_WIDGET (dtw), dtw->desktop);

/* Listen on namedview modification */

dtw->modified_connection = namedview->connectModified(sigc::bind<2>(sigc::ptr_fun(&sp_desktop_widget_namedview_modified), dtw));

dtw->layer_selector->setDesktop(dtw->desktop);

dtw->menubar = sp_ui_main_menubar (dtw->desktop);

gtk_widget_show_all (dtw->menubar);

gtk_box_pack_start (GTK_BOX (dtw->vbox), dtw->menubar, FALSE, FALSE, 0);

sp_desktop_widget_layout (dtw);

sp_tool_toolbox_set_desktop (dtw->tool_toolbox, dtw->desktop);

sp_aux_toolbox_set_desktop (dtw->aux_toolbox, dtw->desktop);

sp_commands_toolbox_set_desktop (dtw->commands_toolbox, dtw->desktop);

return SP_VIEW_WIDGET (dtw);

}

SPDesktopWidget::viewSetPosition (NR::Point p)

{

NR::Point const origin = ( p - ruler_origin );

/// \todo fixme:

GTK_RULER(hruler)->position = origin[NR::X];

gtk_ruler_draw_pos (GTK_RULER (hruler));

GTK_RULER(vruler)->position = origin[NR::Y];

gtk_ruler_draw_pos (GTK_RULER (vruler));

}

sp_desktop_widget_update_rulers (SPDesktopWidget *dtw)

{

NR::Rect const viewbox = dtw->canvas->getViewbox();

double const scale = dtw->desktop->current_zoom();

double s = viewbox.min()[NR::X] / scale - dtw->ruler_origin[NR::X];

double e = viewbox.max()[NR::X] / scale - dtw->ruler_origin[NR::X];

gtk_ruler_set_range(GTK_RULER(dtw->hruler), s, e, GTK_RULER(dtw->hruler)->position, (e - s));

s = viewbox.min()[NR::Y] / -scale - dtw->ruler_origin[NR::Y];

e = viewbox.max()[NR::Y] / -scale - dtw->ruler_origin[NR::Y];

gtk_ruler_set_range(GTK_RULER(dtw->vruler), s, e, GTK_RULER(dtw->vruler)->position, (e - s));

}

static void

sp_desktop_widget_namedview_modified (SPObject *obj, guint flags, SPDesktopWidget *dtw)

{

SPNamedView *nv=SP_NAMEDVIEW(obj);

if (flags & SP_OBJECT_MODIFIED_FLAG) {

dtw->dt2r = 1.0 / nv->doc_units->unittobase;

dtw->ruler_origin = NR::Point(0,0); //nv->gridorigin; Why was the grid origin used here?

sp_ruler_set_metric (GTK_RULER (dtw->vruler), nv->getDefaultMetric());

sp_ruler_set_metric (GTK_RULER (dtw->hruler), nv->getDefaultMetric());

gtk_tooltips_set_tip (dtw->tt, dtw->hruler_box, gettext(sp_unit_get_plural (nv->doc_units)), NULL);

gtk_tooltips_set_tip (dtw->tt, dtw->vruler_box, gettext(sp_unit_get_plural (nv->doc_units)), NULL);

sp_desktop_widget_update_rulers (dtw);

}

}

static void

sp_desktop_widget_adjustment_value_changed (GtkAdjustment *adj, SPDesktopWidget *dtw)

{

if (dtw->update)

return;

dtw->update = 1;

sp_canvas_scroll_to (dtw->canvas, dtw->hadj->value, dtw->vadj->value, FALSE);

sp_desktop_widget_update_rulers (dtw);

dtw->update = 0;

}

bool SPDesktopWidget::onFocusInEvent(GdkEventFocus*)

{

inkscape_activate_desktop (desktop);

/* give focus to canvas widget */

gtk_widget_grab_focus (GTK_WIDGET (canvas));

return false;

}

static gdouble

sp_dtw_zoom_value_to_display (gdouble value)

{

return floor (pow (2, value) * 100.0 + 0.5);

}

static gdouble

sp_dtw_zoom_display_to_value (gdouble value)

{

return log (value / 100.0) / log (2);

}

static gint

sp_dtw_zoom_input (GtkSpinButton *spin, gdouble *new_val, gpointer data)

{

gdouble new_scrolled = gtk_spin_button_get_value (spin);

const gchar *b = gtk_entry_get_text (GTK_ENTRY (spin));

gdouble new_typed = atof (b);

if (sp_dtw_zoom_value_to_display (new_scrolled) == new_typed) { // the new value is set by scrolling

*new_val = new_scrolled;

} else { // the new value is typed in

*new_val = sp_dtw_zoom_display_to_value (new_typed);

}

return TRUE;

}

static bool

sp_dtw_zoom_output (GtkSpinButton *spin, gpointer data)

{

gchar b[64];

g_snprintf (b, 64, "%4.0f%%", sp_dtw_zoom_value_to_display (gtk_spin_button_get_value (spin)));

gtk_entry_set_text (GTK_ENTRY (spin), b);

return TRUE;

}

static void

sp_dtw_zoom_value_changed (GtkSpinButton *spin, gpointer data)

{

double const zoom_factor = pow (2, gtk_spin_button_get_value (spin));

SPDesktopWidget *dtw = SP_DESKTOP_WIDGET (data);

SPDesktop *desktop = dtw->desktop;

NR::Rect const d = desktop->get_display_area();

g_signal_handler_block (spin, dtw->zoom_update);

desktop->zoom_absolute (d.midpoint()[NR::X], d.midpoint()[NR::Y], zoom_factor);

g_signal_handler_unblock (spin, dtw->zoom_update);

spinbutton_defocus (GTK_OBJECT (spin));

}

static void

sp_dtw_zoom_populate_popup (GtkEntry *entry, GtkMenu *menu, gpointer data)

{

GList *children, *iter;

GtkWidget *item;

SPDesktop *dt = SP_DESKTOP_WIDGET (data)->desktop;

children = gtk_container_get_children (GTK_CONTAINER (menu));

for ( iter = children ; iter ; iter = g_list_next (iter)) {

gtk_container_remove (GTK_CONTAINER (menu), GTK_WIDGET (iter->data));

}

g_list_free (children);

item = gtk_menu_item_new_with_label ("200%");

g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_200), dt);

gtk_widget_show (item);

gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

item = gtk_menu_item_new_with_label ("100%");

g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_100), dt);

gtk_widget_show (item);

gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

item = gtk_menu_item_new_with_label ("50%");

g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_50), dt);

gtk_widget_show (item);

gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

item = gtk_separator_menu_item_new ();

gtk_widget_show (item);

gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

item = gtk_menu_item_new_with_label (_("Page"));

g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_page), dt);

gtk_widget_show (item);

gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

item = gtk_menu_item_new_with_label (_("Drawing"));

g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_drawing), dt);

gtk_widget_show (item);

gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

item = gtk_menu_item_new_with_label (_("Selection"));

g_signal_connect (G_OBJECT (item), "activate", G_CALLBACK (sp_dtw_zoom_selection), dt);

gtk_widget_show (item);

gtk_menu_shell_append (GTK_MENU_SHELL (menu), item);

}

static void

sp_dtw_zoom_menu_handler (SPDesktop *dt, gdouble factor)

{

NR::Rect const d = dt->get_display_area();

dt->zoom_absolute(d.midpoint()[NR::X], d.midpoint()[NR::Y], factor);

}

static void

sp_dtw_zoom_50 (GtkMenuItem *item, gpointer data)

{

sp_dtw_zoom_menu_handler (static_cast<SPDesktop*>(data), 0.5);

}

static void

sp_dtw_zoom_100 (GtkMenuItem *item, gpointer data)

{

sp_dtw_zoom_menu_handler (static_cast<SPDesktop*>(data), 1.0);

}

static void

sp_dtw_zoom_200 (GtkMenuItem *item, gpointer data)

{

sp_dtw_zoom_menu_handler (static_cast<SPDesktop*>(data), 2.0);

}

static void

sp_dtw_zoom_page (GtkMenuItem *item, gpointer data)

{

static_cast<SPDesktop*>(data)->zoom_page();

}

static void

sp_dtw_zoom_drawing (GtkMenuItem *item, gpointer data)

{

static_cast<SPDesktop*>(data)->zoom_drawing();

}

static void

sp_dtw_zoom_selection (GtkMenuItem *item, gpointer data)

{

static_cast<SPDesktop*>(data)->zoom_selection();

}

sp_desktop_widget_update_zoom (SPDesktopWidget *dtw)

{

g_signal_handlers_block_by_func (G_OBJECT (dtw->zoom_status), (gpointer)G_CALLBACK (sp_dtw_zoom_value_changed), dtw);

gtk_spin_button_set_value (GTK_SPIN_BUTTON (dtw->zoom_status), log(dtw->desktop->current_zoom()) / log(2));

gtk_widget_queue_draw(GTK_WIDGET(dtw->zoom_status));

if (GTK_WIDGET(dtw->zoom_status)->window)

gdk_window_process_updates(GTK_WIDGET(dtw->zoom_status)->window, TRUE);

g_signal_handlers_unblock_by_func (G_OBJECT (dtw->zoom_status), (gpointer)G_CALLBACK (sp_dtw_zoom_value_changed), dtw);

}

sp_desktop_widget_toggle_rulers (SPDesktopWidget *dtw)

{

if (GTK_WIDGET_VISIBLE (dtw->hruler)) {

gtk_widget_hide_all (dtw->hruler);

gtk_widget_hide_all (dtw->vruler);

prefs_set_int_attribute (dtw->desktop->is_fullscreen() ? "fullscreen.rulers" : "window.rulers", "state", 0);

} else {

gtk_widget_show_all (dtw->hruler);

gtk_widget_show_all (dtw->vruler);

prefs_set_int_attribute (dtw->desktop->is_fullscreen() ? "fullscreen.rulers" : "window.rulers", "state", 1);

}

}

sp_desktop_widget_toggle_scrollbars (SPDesktopWidget *dtw)

{

if (GTK_WIDGET_VISIBLE (dtw->hscrollbar)) {

gtk_widget_hide_all (dtw->hscrollbar);

gtk_widget_hide_all (dtw->vscrollbar_box);

prefs_set_int_attribute (dtw->desktop->is_fullscreen() ? "fullscreen.scrollbars" : "window.scrollbars", "state", 0);

} else {

gtk_widget_show_all (dtw->hscrollbar);

gtk_widget_show_all (dtw->vscrollbar_box);

prefs_set_int_attribute (dtw->desktop->is_fullscreen() ? "fullscreen.scrollbars" : "window.scrollbars", "state", 1);

}

}

static void

set_adjustment (GtkAdjustment *adj, double l, double u, double ps, double si, double pi)

{

if ((l != adj->lower) ||

(u != adj->upper) ||

(ps != adj->page_size) ||

(si != adj->step_increment) ||

(pi != adj->page_increment)) {

adj->lower = l;

adj->upper = u;

adj->page_size = ps;

adj->step_increment = si;

adj->page_increment = pi;

gtk_adjustment_changed (adj);

}

}

sp_desktop_widget_update_scrollbars (SPDesktopWidget *dtw, double scale)

{

if (!dtw) return;

if (dtw->update) return;

dtw->update = 1;

/* The desktop region we always show unconditionally */

SPDocument *doc = dtw->desktop->doc();

NR::Rect darea(NR::Point(-sp_document_width(doc), -sp_document_height(doc)),

NR::Point(2 * sp_document_width(doc), 2 * sp_document_height(doc)));

darea = NR::union_bounds(darea, sp_item_bbox_desktop(SP_ITEM(SP_DOCUMENT_ROOT(doc))));

/* Canvas region we always show unconditionally */

NR::Rect carea(NR::Point(darea.min()[NR::X] * scale - 64,

darea.max()[NR::Y] * -scale - 64),

NR::Point(darea.max()[NR::X] * scale + 64,

darea.min()[NR::Y] * -scale + 64));

NR::Rect viewbox = dtw->canvas->getViewbox();

/* Viewbox is always included into scrollable region */

carea = NR::union_bounds(carea, viewbox);

set_adjustment(dtw->hadj, carea.min()[NR::X], carea.max()[NR::X],

viewbox.dimensions()[NR::X],

0.1 * viewbox.dimensions()[NR::X],

viewbox.dimensions()[NR::X]);

gtk_adjustment_set_value(dtw->hadj, viewbox.min()[NR::X]);

set_adjustment(dtw->vadj, carea.min()[NR::Y], carea.max()[NR::Y],

viewbox.dimensions()[NR::Y],

0.1 * viewbox.dimensions()[NR::Y],

viewbox.dimensions()[NR::Y]);

gtk_adjustment_set_value(dtw->vadj, viewbox.min()[NR::Y]);

dtw->update = 0;

}