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

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

diff --git a/cinelerra-5.1/cinelerra/cursor.C b/cinelerra-5.1/cinelerra/cursor.C
new file mode 100644 (file)
index 0000000..f5bda7c
--- /dev/null
+++ b/cinelerra-5.1/cinelerra/cursor.C
@@ -0,0 +1,101 @@
+
+/*
+ * 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 "cursor.h"
+
+Cursor_::Cursor_(BC_SubWindow *canvas)
+{
+       this->canvas = canvas;
+       selectionstart = selectionend = zoom_sample = viewstart = 0;
+}
+
+Cursor_::~Cursor_()
+{
+}
+
+int Cursor_::show(int flash, long selectionstart, long selectionend, long zoom_sample, long viewstart, int vertical)
+{
+return 0;
+       this->selectionstart = selectionstart;
+       this->selectionend = selectionend;
+       this->viewstart = viewstart;
+       this->zoom_sample = zoom_sample;
+       this->vertical = vertical;
+       draw(flash, selectionstart, selectionend, zoom_sample, viewstart, vertical);
+}
+
+int Cursor_::hide(int flash)
+{
+return 0;
+       draw(flash, selectionstart, selectionend, zoom_sample, viewstart, vertical);
+}
+
+int Cursor_::draw(int flash, long selectionstart, long selectionend, long zoom_sample, long viewstart, int vertical)
+{
+return 0;
+       if(canvas->get_h() * canvas->get_w() == 0) return 1; 
+       if(zoom_sample == 0) return 1;       // no canvas
+
+       long start = viewstart;
+       long end = start + (long)(vertical ? canvas->get_h() : canvas->get_w()) * zoom_sample;
+       int pixel1, pixel2;
+
+       if((selectionstart >= start && selectionstart <= end) ||
+                (selectionend >= start && selectionend <= end) ||
+                (start >= selectionstart && end <= selectionend))
+       {
+               if(selectionstart < start)
+               {
+                       pixel1 = 0;
+               }
+               else
+               {
+                       pixel1 = (selectionstart - start) / zoom_sample;
+               }
+               
+               if(selectionend > end)
+               {
+                       pixel2 = (vertical ? canvas->get_h() : canvas->get_w());
+               }
+               else
+               {
+                       pixel2 = (selectionend - start) / zoom_sample;
+               }
+               pixel2++;
+
+               canvas->set_inverse();
+               canvas->set_color(WHITE);
+               
+               if(vertical)
+               canvas->draw_box(0, pixel1, canvas->get_w(), pixel2 - pixel1);
+               else
+               canvas->draw_box(pixel1, 0, pixel2 - pixel1, canvas->get_h());
+               
+               
+               canvas->set_opaque();
+       }
+       if(flash) canvas->flash();
+}
+
+int Cursor_::resize(int w, int h)
+{
+       return 0;
+}