enough with umpteen "i18n.h" files. Consolidate on pbd/i18n.h

[ardour.git] / libs / gtkmm2ext / persistent_tooltip.cc

diff --git a/libs/gtkmm2ext/persistent_tooltip.cc b/libs/gtkmm2ext/persistent_tooltip.cc
index 77a8d94c0fea78d30c87db9acf5413a17320a812..d45ef01408d2be966983920f461521b70ee0be02 100644 (file)
--- a/libs/gtkmm2ext/persistent_tooltip.cc
+++ b/libs/gtkmm2ext/persistent_tooltip.cc
@@ -19,25 +19,35 @@
 
 #include <gtkmm/window.h>
 #include <gtkmm/label.h>
+#include <gtkmm/settings.h>
 #include "gtkmm2ext/persistent_tooltip.h"
 
-#include "i18n.h"
+#include "pbd/stacktrace.h"
+
+#include "pbd/i18n.h"
 
 using namespace std;
 using namespace Gtk;
 using namespace Gtkmm2ext;
 
+bool PersistentTooltip::_tooltips_enabled = true;
+unsigned int PersistentTooltip::_tooltip_timeout = 500;
+
 /** @param target The widget to provide the tooltip for */
-PersistentTooltip::PersistentTooltip (Gtk::Widget* target)
+PersistentTooltip::PersistentTooltip (Gtk::Widget* target, bool  draggable, int margin_y)
        : _target (target)
        , _window (0)
        , _label (0)
+       , _draggable (draggable)
        , _maybe_dragging (false)
+       , _align_to_center (true)
+       , _margin_y (margin_y)
 {
        target->signal_enter_notify_event().connect (sigc::mem_fun (*this, &PersistentTooltip::enter), false);
        target->signal_leave_notify_event().connect (sigc::mem_fun (*this, &PersistentTooltip::leave), false);
        target->signal_button_press_event().connect (sigc::mem_fun (*this, &PersistentTooltip::press), false);
        target->signal_button_release_event().connect (sigc::mem_fun (*this, &PersistentTooltip::release), false);
+       _tooltip_timeout = Gtk::Settings::get_default()->property_gtk_tooltip_timeout ();
 }
 
 PersistentTooltip::~PersistentTooltip ()
@@ -51,7 +61,7 @@ PersistentTooltip::enter (GdkEventCrossing *)
        if (_timeout.connected()) {
                leave(NULL);
        }
-       _timeout = Glib::signal_timeout().connect (sigc::mem_fun (*this, &PersistentTooltip::timeout), 500);
+       _timeout = Glib::signal_timeout().connect (sigc::mem_fun (*this, &PersistentTooltip::timeout), _tooltip_timeout);
        return false;
 }
 
@@ -96,7 +106,7 @@ PersistentTooltip::release (GdkEventButton* ev)
 bool
 PersistentTooltip::dragging () const
 {
-       return _maybe_dragging;
+       return _maybe_dragging && _draggable;
 }
 
 void
@@ -110,6 +120,10 @@ PersistentTooltip::hide ()
 void
 PersistentTooltip::show ()
 {
+       if (_tip.empty() || !_tooltips_enabled) {
+               return;
+       }
+
        if (!_window) {
                _window = new Window (WINDOW_POPUP);
                _window->set_name (X_("ContrastingPopup"));
@@ -117,6 +131,7 @@ PersistentTooltip::show ()
                _window->set_decorated (false);
 
                _label = manage (new Label);
+               _label->modify_font (_font);
                _label->set_use_markup (true);
 
                _window->set_border_width (6);
@@ -128,23 +143,36 @@ PersistentTooltip::show ()
                        _window->set_transient_for (*tlw);
                }
        }
-       
+
        set_tip (_tip);
 
        if (!_window->is_visible ()) {
-               int rx, ry, sw;
-               sw= gdk_screen_width();
+               int rx, ry;
+               int sw = gdk_screen_width ();
+
                _target->get_window()->get_origin (rx, ry);
-               _window->move (rx, ry + _target->get_height());
-               _window->present ();
 
                /* the window needs to be realized first
                 * for _window->get_width() to be correct.
                 */
+
+
                if (sw < rx + _window->get_width()) {
+                       /* right edge of window would be off the right edge of
+                          the screen, so don't show it in the usual place.
+                       */
                        rx = sw - _window->get_width();
-                       _window->move (rx, ry + _target->get_height());
+                       _window->move (rx, ry + _target->get_height() + _margin_y);
+               } else {
+                       if (_align_to_center) {
+                               _window->move (rx + (_target->get_width () - _window->get_width ()) / 2, ry + _target->get_height());
+                       } else {
+                               _window->move (rx, ry + _target->get_height());
+                       }
                }
+
+               _window->present ();
+
        }
 }
 
@@ -157,3 +185,19 @@ PersistentTooltip::set_tip (string t)
                _label->set_markup (t);
        }
 }
+
+void
+PersistentTooltip::set_font (Pango::FontDescription font)
+{
+       _font = font;
+
+       if (_label) {
+               _label->modify_font (_font);
+       }
+}
+
+void
+PersistentTooltip::set_center_alignment (bool align_to_center)
+{
+       _align_to_center = align_to_center;
+}