1 files changed, 197 insertions, 0 deletions
diff --git a/src/ui/widget/ruler.cpp b/src/ui/widget/ruler.cpp
new file mode 100644
index 000000000..f2a59338d
--- /dev/null
+++ b/src/ui/widget/ruler.cpp
@@ -0,0 +1,197 @@
+/** \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
+ */
+
+#if defined(WIN32) || defined(__APPLE__)
+# include <glibmm/i18n.h>
+#endif
+
+#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"
+
+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);
+        double const guide_pos_dt = event_dt[ _horiz_f ? NR::Y : NR::X ];
+        _guide = sp_guideline_new(_dt->guides, guide_pos_dt, !_horiz_f);
+        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) {
+        double const guide_pos_dt = event_dt[ _horiz_f ? NR::Y : NR::X ];
+        sp_guideline_set_position(SP_GUIDELINE(_guide), guide_pos_dt);
+        _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::Node *repr = sp_repr_new("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_DT_DOCUMENT(_dt));
+        }
+        _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 :