Initial import of gtk2_ardour.

git-svn-id: svn://localhost/trunk/ardour2@24 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 84 insertions, 0 deletions

diff --git a/gtk2_ardour/crossfade_view.h b/gtk2_ardour/crossfade_view.h
new file mode 100644
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+++ b/gtk2_ardour/crossfade_view.h
@@ -0,0 +1,84 @@
+/*
+    Copyright (C) 2003 Paul 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.
+
+    $Id$
+*/
+
+#ifndef __gtk_ardour_crossfade_view_h__
+#define __gtk_ardour_crossfade_view_h__
+
+#include <vector>
+#include <gtk--.h>
+#include <gtk-canvas.h>
+#include <sigc++/signal_system.h>
+#include <ardour/crossfade.h>
+
+#include "time_axis_view_item.h"
+
+class AudioTimeAxisView;
+class AudioRegionView;
+
+struct CrossfadeView : public TimeAxisViewItem
+{
+    CrossfadeView (GtkCanvasGroup*, 
+		   AudioTimeAxisView&,
+		   ARDOUR::Crossfade&,
+		   double initial_samples_per_unit, 
+		   GdkColor& basic_color,
+		   AudioRegionView& leftview,
+		   AudioRegionView& rightview);
+    ~CrossfadeView ();
+
+    ARDOUR::Crossfade& crossfade;  // ok, let 'em have it
+    AudioRegionView& left_view;    // and these too
+    AudioRegionView& right_view;
+
+    std::string get_item_name();
+    void set_height (double);
+
+    bool valid() const { return _valid; }
+    bool visible() const { return _visible; }
+    void set_valid (bool yn);
+
+    static SigC::Signal1<void,CrossfadeView*> GoingAway;
+
+    AudioRegionView& upper_regionview () const;
+
+    void fake_hide ();
+    void hide ();
+    void show ();
+    
+  protected:
+    void reset_width_dependent_items (double pixel_width);
+
+  private:
+    bool _valid;
+    bool _visible;
+
+    double spu;
+
+    GtkCanvasItem *overlap_rect;
+    GtkCanvasItem *fade_in;
+    GtkCanvasItem *fade_out;
+    GtkCanvasItem *active_button;
+
+    void crossfade_changed (ARDOUR::Change);
+    void active_changed ();
+    void redraw_curves ();
+};
+
+#endif /* __gtk_ardour_crossfade_view_h__ */