Initial import of gtk2_ardour.

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

1 files changed, 68 insertions, 0 deletions

diff --git a/gtk2_ardour/ghostregion.cc b/gtk2_ardour/ghostregion.cc
new file mode 100644
index 0000000000..8caacac3b3
--- /dev/null
+++ b/gtk2_ardour/ghostregion.cc
@@ -0,0 +1,68 @@
+#include "canvas-simplerect.h"
+#include "ghostregion.h"
+#include "automation_time_axis.h"
+#include "rgb_macros.h"
+
+using namespace Editing;
+
+GhostRegion::GhostRegion (AutomationTimeAxisView& atv, double initial_pos)
+	: trackview (atv)
+{
+	group = gtk_canvas_item_new (GTK_CANVAS_GROUP(trackview.canvas_display),
+				     gtk_canvas_group_get_type(),
+				     "x", initial_pos,
+				     "y", 0.0,
+				     NULL);
+
+	base_rect = gtk_canvas_item_new (GTK_CANVAS_GROUP(group),
+					 gtk_canvas_simplerect_get_type(),
+					 "x1", (double) 0.0,
+					 "y1", (double) 0.0,
+					 "y2", (double) trackview.height,
+					 "outline_what", (guint32) 0,
+					 "outline_color_rgba", color_map[cGhostTrackBaseOutline],
+					 "fill_color_rgba", color_map[cGhostTrackBaseFill],
+					 NULL);
+
+	gtk_canvas_item_lower_to_bottom (group);
+
+	atv.add_ghost (this);
+}
+
+GhostRegion::~GhostRegion ()
+{
+	GoingAway (this);
+	gtk_object_destroy (GTK_OBJECT(group));
+}
+
+void
+GhostRegion::set_samples_per_unit (double spu)
+{
+	for (vector<GtkCanvasItem*>::iterator i = waves.begin(); i != waves.end(); ++i) {
+		gtk_canvas_item_set ((*i), "samples_per_unit", spu, NULL);
+	}		
+}
+
+void
+GhostRegion::set_duration (double units)
+{
+	gtk_canvas_item_set (base_rect, "x2", units, NULL);
+}
+
+void
+GhostRegion::set_height ()
+{
+	gdouble ht;
+	vector<GtkCanvasItem*>::iterator i;
+	uint32_t n;
+
+	gtk_canvas_item_set (base_rect, "y2", (double) trackview.height, NULL);
+
+	ht = ((trackview.height) / (double) waves.size());
+	
+	for (n = 0, i = waves.begin(); i != waves.end(); ++i, ++n) {
+		gdouble yoff = n * ht;
+		gtk_canvas_item_set ((*i), "height", ht, "y", yoff, NULL);
+	}
+}
+