Move Gtkmm2ext widgets into libwidget

1 files changed, 188 insertions, 0 deletions

diff --git a/libs/widgets/click_box.cc b/libs/widgets/click_box.cc
new file mode 100644
index 0000000000..b3271a0cc4
--- /dev/null
+++ b/libs/widgets/click_box.cc
@@ -0,0 +1,188 @@
+/*
+    Copyright (C) 1999 Paul Barton-Davis
+
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+    $Id$
+*/
+
+#include <iostream>
+#include <cstdio> /* for sprintf, sigh ... */
+
+#include "pbd/controllable.h"
+#include "gtkmm2ext/utils.h"
+#include "widgets/click_box.h"
+
+using namespace std;
+using namespace Gtk;
+using namespace ArdourWidgets;
+using namespace sigc;
+
+ClickBox::ClickBox (Gtk::Adjustment *adjp, const string &name, bool round_to_steps)
+	: AutoSpin (*adjp,0,round_to_steps)
+{
+	layout = create_pango_layout ("");
+	twidth = 0;
+	theight = 0;
+
+
+	add_events (Gdk::BUTTON_RELEASE_MASK|
+		    Gdk::BUTTON_PRESS_MASK|
+		    Gdk::ENTER_NOTIFY_MASK|
+		    Gdk::LEAVE_NOTIFY_MASK);
+
+	get_adjustment().signal_value_changed().connect (mem_fun (*this, &ClickBox::set_label));
+	signal_style_changed().connect (mem_fun (*this, &ClickBox::style_changed));
+	signal_button_press_event().connect (mem_fun (*this, &ClickBox::button_press_handler));
+	signal_button_release_event().connect (mem_fun (*this, &ClickBox::button_release_handler));
+	set_name (name);
+	set_label ();
+}
+
+ClickBox::~ClickBox ()
+{
+}
+
+bool
+ClickBox::button_press_handler (GdkEventButton* ev)
+{
+	if (_binding_proxy.button_press_handler (ev)) {
+		return true;
+	}
+	add_modal_grab();
+	AutoSpin::button_press (ev);
+	return true;
+}
+
+bool
+ClickBox::on_scroll_event (GdkEventScroll* ev)
+{
+	AutoSpin::scroll_event (ev);
+	return true;
+}
+
+bool
+ClickBox::button_release_handler (GdkEventButton* ev)
+{
+	switch (ev->button) {
+	case 1:
+	case 2:
+	case 3:
+		stop_spinning (0);
+	default:
+	        remove_modal_grab();
+		break;
+	}
+	return true;
+}
+
+void
+ClickBox::set_label ()
+{
+	char buf[32];
+	int width, height;
+
+	bool const h = _printer (buf, get_adjustment());
+	if (!h) {
+		/* the printer didn't handle it, so use a default */
+		sprintf (buf, "%.2f", get_adjustment().get_value ());
+	}
+
+	layout->set_text (buf);
+	layout->get_pixel_size (width, height);
+
+	if (twidth < width && (width > 50))  {
+		/* override GenericPluginUI::build_control_ui()
+		 * Gtkmm2ext::set_size_request_to_display_given_text ("g9999999")
+		 * see http://tracker.ardour.org/view.php?id=6499
+		 */
+		set_size_request (std::min (300, width + 6), height + 4);
+	}
+
+	twidth = width; theight = height;
+
+	queue_draw ();
+}
+
+void
+ClickBox::style_changed (const Glib::RefPtr<Gtk::Style>&)
+{
+	layout->context_changed ();
+	layout->get_pixel_size (twidth, theight);
+}
+
+bool
+ClickBox::on_expose_event (GdkEventExpose *ev)
+{
+	/* Why do we do things like this rather than use a Gtk::Label?
+	   Because whenever Gtk::Label::set_label() is called, it
+	   triggers a recomputation of its own size, along with that
+	   of its container and on up the tree. That's intended
+	   to be unnecessary here.
+	*/
+
+	Gtk::DrawingArea::on_expose_event (ev);
+
+	Glib::RefPtr<Gtk::Style> style (get_style());
+	Glib::RefPtr<Gdk::GC> fg_gc (style->get_fg_gc (Gtk::STATE_NORMAL));
+	Glib::RefPtr<Gdk::GC> bg_gc (style->get_bg_gc (Gtk::STATE_NORMAL));
+	Glib::RefPtr<Gdk::Window> win (get_window());
+
+	GdkRectangle base_rect;
+	GdkRectangle draw_rect;
+	gint x, y, width, height, depth;
+
+	win->get_geometry (x, y, width, height, depth);
+
+	base_rect.width = width;
+	base_rect.height = height;
+	base_rect.x = 0;
+	base_rect.y = 0;
+
+	gdk_rectangle_intersect (&ev->area, &base_rect, &draw_rect);
+	win->draw_rectangle (bg_gc, true, draw_rect.x, draw_rect.y, draw_rect.width, draw_rect.height);
+
+	if (twidth && theight) {
+		win->draw_layout (fg_gc, (width - twidth) / 2, (height - theight) / 2, layout);
+	}
+
+	return true;
+}
+
+void
+ClickBox::set_printer (sigc::slot<bool, char *, Gtk::Adjustment &> p)
+{
+	_printer = p;
+	set_label ();
+}
+
+bool
+ClickBox::on_enter_notify_event (GdkEventCrossing* ev)
+{
+	boost::shared_ptr<PBD::Controllable> c (_binding_proxy.get_controllable ());
+	if (c) {
+		PBD::Controllable::GUIFocusChanged (boost::weak_ptr<PBD::Controllable> (c));
+	}
+	return false;
+}
+
+bool
+ClickBox::on_leave_notify_event (GdkEventCrossing* ev)
+{
+	if (_binding_proxy.get_controllable()) {
+		PBD::Controllable::GUIFocusChanged (boost::weak_ptr<PBD::Controllable> ());
+	}
+	return false;
+}