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/** \file
* Gtkmm facade/wrapper around SPRuler code that formerly lived
* in desktop-events.cpp
*/
/*
* Authors:
* Ralf Stephan <ralf@ark.in-berlin.de>
* Lauris Kaplinski
*
* Copyright (C) 2005 Ralf Stephan
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <glibmm/i18n.h>
#include <gtkmm/ruler.h>
#include "helper/units.h"
#include "widgets/ruler.h"
#include "ui/widget/ruler.h"
#include "xml/repr.h"
#include "display/guideline.h"
#include "desktop.h"
#include "desktop-handles.h"
#include "document.h"
#include "sp-namedview.h"
#include "verbs.h"
namespace Inkscape {
namespace UI {
namespace Widget {
void
Ruler::init(SPDesktop *dt, Gtk::Widget &w)
{
_dt = dt;
_canvas_widget = &w;
_dragging = false;
_guide = 0;
sp_ruler_set_metric(GTK_RULER(_r->gobj()), SP_PT);
_r->set_range(-500, 500, 0, 1000);
}
void
Ruler::get_range(double &lo, double &up, double &pos, double &max)
{
_r->get_range(lo, up, pos, max);
}
void
Ruler::set_range(double lo, double up, double pos, double max)
{
_r->set_range(lo, up, pos, max);
}
/// Set metric from namedview
void
Ruler::update_metric()
{
if (!_dt) return;
sp_ruler_set_metric(GTK_RULER(_r->gobj()), _dt->namedview->getDefaultMetric());
}
/// Returns text to be used for tooltip for ruler.
/// \todo incorrect
Glib::ustring
Ruler::get_tip()
{
return gettext(sp_unit_get_plural( _dt
? _dt->namedview->doc_units
: &sp_unit_get_by_id(SP_UNIT_PT) ));
}
/// Helper that gets mouse coordinates relative to canvas widget.
void
Ruler::canvas_get_pointer(int &x, int &y)
{
Gdk::ModifierType mask;
(void) _canvas_widget->get_window()->get_pointer(x, y, mask);
}
NR::Point
Ruler::get_event_dt()
{
int wx, wy;
canvas_get_pointer(wx, wy);
NR::Point const event_win(wx, wy);
NR::Point const event_w(sp_canvas_window_to_world(_dt->canvas, event_win));
return _dt->w2d(event_w);
}
bool
Ruler::on_button_press_event(GdkEventButton *evb)
{
g_assert(_dt);
NR::Point const &event_dt = get_event_dt();
Inkscape::XML::Node *repr = SP_OBJECT_REPR(_dt->namedview);
if (evb->button == 1) {
_dragging = true;
sp_repr_set_boolean(repr, "showguides", TRUE);
sp_repr_set_boolean(repr, "inkscape:guide-bbox", TRUE);
_guide = sp_guideline_new(_dt->guides, event_dt.to_2geom(), _horiz_f ? Geom::Point(0.,1.) : Geom::Point(1.,0.));
sp_guideline_set_color(SP_GUIDELINE(_guide), _dt->namedview->guidehicolor);
(void) get_window()->pointer_grab(false,
Gdk::BUTTON_RELEASE_MASK |
Gdk::POINTER_MOTION_MASK |
Gdk::POINTER_MOTION_HINT_MASK,
evb->time);
}
return false;
}
bool
Ruler::on_motion_notify_event(GdkEventMotion *)
{
g_assert(_dt);
NR::Point const &event_dt = get_event_dt();
if (_dragging) {
sp_guideline_set_position(SP_GUIDELINE(_guide), event_dt.to_2geom());
_dt->set_coordinate_status(event_dt);
_dt->setPosition(event_dt);
}
return false;
}
bool
Ruler::on_button_release_event(GdkEventButton *evb)
{
g_assert(_dt);
int wx, wy;
canvas_get_pointer(wx, wy);
NR::Point const &event_dt = get_event_dt();
if (_dragging && evb->button == 1) {
Gdk::Window::pointer_ungrab(evb->time);
gtk_object_destroy(GTK_OBJECT(_guide));
_guide = 0;
_dragging = false;
if ( (_horiz_f ? wy : wx ) >= 0 ) {
Inkscape::XML::Document *xml_doc = sp_document_repr_doc(_dt->doc());
Inkscape::XML::Node *repr = xml_doc->createElement("sodipodi:guide");
repr->setAttribute("orientation", _horiz_f ? "horizontal" : "vertical");
double const guide_pos_dt = event_dt[ _horiz_f ? NR::Y : NR::X ];
sp_repr_set_svg_double(repr, "position", guide_pos_dt);
SP_OBJECT_REPR(_dt->namedview)->appendChild(repr);
Inkscape::GC::release(repr);
sp_document_done(sp_desktop_document(_dt), SP_VERB_NONE,
/* TODO: annotate */ "ruler.cpp:157");
}
_dt->set_coordinate_status(event_dt);
}
return false;
}
//------------------------------------------------------------
HRuler::HRuler()
{
_dt = 0;
_r = static_cast<Gtk::HRuler*>(Glib::wrap(static_cast<GtkWidget*> (sp_hruler_new())));
add(*_r);
_horiz_f = true;
}
HRuler::~HRuler()
{
}
VRuler::VRuler()
{
_dt = 0;
_r = static_cast<Gtk::VRuler*>(Glib::wrap(static_cast<GtkWidget*> (sp_vruler_new())));
add(*_r);
_horiz_f = false;
}
VRuler::~VRuler()
{
}
}}}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
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