Merge CV, ver=5.1; ops/methods from HV, and interface from CV where possible

[goodguy/history.git] / cinelerra-5.1 / cinelerra / panautos.C

diff --git a/cinelerra-5.1/cinelerra/panautos.C b/cinelerra-5.1/cinelerra/panautos.C
new file mode 100644 (file)
index 0000000..a333ad9
--- /dev/null
+++ b/cinelerra-5.1/cinelerra/panautos.C
@@ -0,0 +1,88 @@
+
+/*
+ * CINELERRA
+ * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ */
+
+#include "automation.inc"
+#include "panauto.h"
+#include "panautos.h"
+#include "transportque.inc"
+
+PanAutos::PanAutos(EDL *edl, Track *track)
+ : Autos(edl, track)
+{
+       type = AUTOMATION_TYPE_PAN;
+}
+
+PanAutos::~PanAutos()
+{
+}
+
+
+Auto* PanAutos::new_auto()
+{
+       return new PanAuto(edl, this);
+}
+
+void PanAutos::get_handle(int &handle_x,
+               int &handle_y,
+               int64_t position,
+               int direction,
+               PanAuto* &previous,
+               PanAuto* &next)
+{
+       previous = (PanAuto*)get_prev_auto(position, direction, (Auto* &)previous);
+       next = (PanAuto*)get_next_auto(position, direction, (Auto* &)next);
+
+// Constant
+       if(previous->handle_x == next->handle_x &&
+               previous->handle_y == next->handle_y)
+       {
+               handle_x = previous->handle_x;
+               handle_y = previous->handle_y;
+               return;
+       }
+
+// Interpolate
+       int64_t total = labs(next->position - previous->position);
+       double fraction;
+       if(direction == PLAY_FORWARD)
+       {
+               fraction = (double)(position - previous->position) / total;
+       }
+       else
+       {
+               fraction = (double)(previous->position - position) / total;
+       }
+
+       handle_x = (int)(previous->handle_x + (next->handle_x - previous->handle_x) * fraction);
+       handle_y = (int)(previous->handle_y + (next->handle_y - previous->handle_y) * fraction);
+}
+
+void PanAutos::dump()
+{
+       printf("        PanAutos::dump %p\n", this);
+       printf("        Default: position %jd\n", default_auto->position);
+       ((PanAuto*)default_auto)->dump();
+       for(Auto* current = first; current; current = NEXT)
+       {
+               printf("        position %jd\n", current->position);
+               ((PanAuto*)current)->dump();
+       }
+}