initial version of navigator bar code.

src/zmapControl/zmapControlNavigator.c

+/*  File: zmapControlNavigator.c
+ *  Author: Ed Griffiths (edgrif@sanger.ac.uk)
+ *  Copyright (c) Sanger Institute, 2004
+ *-------------------------------------------------------------------
+ * ZMap 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.
+ * or see the on-line version at http://www.gnu.org/copyleft/gpl.txt
+ *-------------------------------------------------------------------
+ * This file is part of the ZMap genome database package
+ * originated by
+ * 	Ed Griffiths (Sanger Institute, UK) edgrif@sanger.ac.uk,
+ *      Rob Clack (Sanger Institute, UK) rnc@sanger.ac.uk
+ *
+ * Description: Implements the navigator window in a zmap.
+ *              
+ * Exported functions: See zmapControl_P.h
+ * HISTORY:
+ * Last edited: Jul  8 14:22 2004 (edgrif)
+ * Created: Thu Jul  8 12:54:27 2004 (edgrif)
+ * CVS info:   $Id: zmapControlNavigator.c,v 1.1 2004-07-15 09:38:37 edgrif Exp $
+ *-------------------------------------------------------------------
+ */
+
+
+#include <zmapControl_P.h>
+
+
+/* Create the navigator window which is a scrolled window without scroll bars (?),
+ * I am unsure why we use a scrolled window here....  with a canvas beneath it. */
+GtkWidget *zmapControlCreateNavigator(FooCanvas **canvas_out)
+{
+  GtkWidget *navigator, *canvas ;
+ 
+  navigator = gtk_scrolled_window_new(NULL, NULL) ;
+  gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(navigator), 
+				 GTK_POLICY_NEVER, GTK_POLICY_NEVER) ;
+  gtk_widget_set_size_request(navigator, 100, -1) ;
+
+  canvas = foo_canvas_new() ;
+  foo_canvas_set_scroll_region(FOO_CANVAS(canvas), 0.0, 0.0, 200.0, 500.0) ;
+  foo_canvas_item_new(foo_canvas_root(FOO_CANVAS(canvas)),
+			foo_canvas_rect_get_type(),
+			"x1",(double)0.0,
+			"y1",(double)0.0,
+			"x2",(double)200.0,
+			"y2",(double)500.0,
+			"fill_color", "white",
+			NULL);
+
+  gtk_container_add(GTK_CONTAINER(navigator), canvas);
+  *canvas_out = FOO_CANVAS(canvas) ;
+
+  return navigator ;
+}
+
+
+
+void navChange(GtkAdjustment *adj, gpointer p)
+{
+  ZMapPane pane = (ZMapPane)p;
+  
+  /* code needed.... */
+
+  return ;
+}
+
+
+
+void navUpdate(GtkAdjustment *adj, gpointer p)
+{
+  ZMapPane pane = (ZMapPane)p ;
+  ZMap zmap = pane->zmap ;
+  int height;
+  Coord startWind, endWind;
+  ScreenCoord startWindf, startScreenf, endWindf, lenWindf;
+  float x1, y1, x2, y2;
+
+  if (GTK_WIDGET_REALIZED(zmap->navview_frame))
+    {
+
+      //  graphActivate(zMapWindowGetNavigator(window));
+      //  graphFitBounds(NULL, &height);
+      //  graphBoxDim(pane->scrollBox, &x1, &y1, &x2, &y2);
+      
+      //  startWind =  zmCoordFromScreen(pane, 0);
+      //  endWind =  zmCoordFromScreen(pane, zMapPaneGetHeight(pane));
+      
+      //  startWindf = zMapWindowGetScreenCoord(window, startWind, height);
+      //  endWindf = zMapWindowGetScreenCoord(window, endWind, height);
+      //  lenWindf = endWindf - startWindf;
+      
+      //  startScreenf = startWindf + lenWindf * (adj->value - adj->lower)/(adj->upper - adj->lower) ;
+      
+      //  graphBoxShift(pane->scrollBox, x1, startScreenf);
+    }
+
+  return ;
+}
+
+
+/* Currently not called........... */
+void navScale(FooCanvas *canvas, float offset, int start, int end)
+{
+  int x, width = 5, count;
+  FooCanvasItem *group;
+
+  group = foo_canvas_item_new(foo_canvas_root(canvas),
+			foo_canvas_group_get_type(),
+			"x",(double)offset,
+			"y",(double)0.0,
+			NULL);
+ 
+  for (x = start, count = 1 ; x < end ; x += 10, count++)
+    {
+      drawLine(FOO_CANVAS_GROUP(group), offset-5, x, offset, x, "black", 1.0);
+      char text[25];
+      sprintf(text,"%dk", x);
+      if (count == 1)
+	displayText(FOO_CANVAS_GROUP(group), text, offset + 20, x); 
+      if (count > 9) count = 0;
+    }
+			     
+  drawLine(FOO_CANVAS_GROUP(group), offset+1, 0, offset+1, end, "black", 1.0);
+
+  return;
+}
+
+
+
+/* UNUSED CURRENTLY but needed for when user alters the hpane interactively....... */
+static void navResize(void)
+{
+
+  /* code needed ????? */
+
+  return ;
+}
+
+
+
+