Truncate long TUI window titles
[deliverable/binutils-gdb.git] / gdb / tui / tui-source.c
index e171101e7fb2b211afb8d9b8e6d710c6c4f6dee0..906006a4225ab4240a803ad82ee1212c791f459c 100644 (file)
@@ -123,11 +123,13 @@ copy_source_line (const char **ptr, int line_no, int first_col,
 
 /* Function to display source in the source window.  */
 enum tui_status
-tui_set_source_content (tui_source_window_base *win_info,
-                       struct symtab *s, 
-                       int line_no,
-                       int noerror)
+tui_source_window::set_contents (struct gdbarch *arch,
+                                struct symtab *s, 
+                                struct tui_line_or_address line_or_addr)
 {
+  gdb_assert (line_or_addr.loa == LOA_LINE);
+  int line_no = line_or_addr.u.line_no;
+
   enum tui_status ret = TUI_FAILURE;
 
   if (s != NULL)
@@ -135,26 +137,15 @@ tui_set_source_content (tui_source_window_base *win_info,
       int line_width, nlines;
 
       ret = TUI_SUCCESS;
-      tui_alloc_source_buffer (win_info);
-      line_width = win_info->width - 1;
+      line_width = width - TUI_EXECINFO_SIZE - 1;
       /* Take hilite (window border) into account, when
         calculating the number of lines.  */
-      nlines = (line_no + (win_info->height - 2)) - line_no;
+      nlines = (line_no + (height - 2)) - line_no;
 
       std::string srclines;
       if (!g_source_cache.get_source_lines (s, line_no, line_no + nlines,
                                            &srclines))
-       {
-         if (!noerror)
-           {
-             const char *filename = symtab_to_filename_for_display (s);
-             char *name = (char *) alloca (strlen (filename) + 100);
-
-             sprintf (name, "%s:%d", filename, line_no);
-             print_sys_errmsg (name, errno);
-           }
-         ret = TUI_FAILURE;
-       }
+       ret = TUI_FAILURE;
       else
        {
          int cur_line_no, cur_line;
@@ -162,28 +153,26 @@ tui_set_source_content (tui_source_window_base *win_info,
            = tui_locator_win_info_ptr ();
          const char *s_filename = symtab_to_filename_for_display (s);
 
-         xfree (win_info->title);
-         win_info->title = xstrdup (s_filename);
+         title = s_filename;
 
-         xfree (win_info->fullname);
-         win_info->fullname = xstrdup (symtab_to_fullname (s));
+         xfree (fullname);
+         fullname = xstrdup (symtab_to_fullname (s));
 
          cur_line = 0;
-         win_info->gdbarch = get_objfile_arch (SYMTAB_OBJFILE (s));
-         win_info->start_line_or_addr.loa = LOA_LINE;
-         cur_line_no = win_info->start_line_or_addr.u.line_no = line_no;
+         gdbarch = get_objfile_arch (SYMTAB_OBJFILE (s));
+         start_line_or_addr.loa = LOA_LINE;
+         cur_line_no = start_line_or_addr.u.line_no = line_no;
 
          const char *iter = srclines.c_str ();
-         win_info->content.resize (nlines);
+         content.resize (nlines);
          while (cur_line < nlines)
            {
              struct tui_source_element *element
-               = &win_info->content[cur_line];
+               = &content[cur_line];
 
              std::string text;
              if (*iter != '\0')
-               text = copy_source_line (&iter, cur_line_no,
-                                        win_info->horizontal_offset,
+               text = copy_source_line (&iter, cur_line_no, horizontal_offset,
                                         line_width);
 
              /* Set whether element is the execution point
@@ -195,8 +184,8 @@ tui_set_source_content (tui_source_window_base *win_info,
                                 symtab_to_fullname (s)) == 0
                   && cur_line_no == locator->line_no);
 
-             xfree (win_info->content[cur_line].line);
-             win_info->content[cur_line].line
+             xfree (content[cur_line].line);
+             content[cur_line].line
                = xstrdup (text.c_str ());
 
              cur_line++;
@@ -212,13 +201,12 @@ tui_set_source_content (tui_source_window_base *win_info,
 /* Function to display source in the source window.  This function
    initializes the horizontal scroll to 0.  */
 void
-tui_show_symtab_source (tui_source_window_base *win_info,
-                       struct gdbarch *gdbarch, struct symtab *s,
-                       struct tui_line_or_address line, 
-                       int noerror)
+tui_source_window::show_symtab_source (struct gdbarch *gdbarch,
+                                      struct symtab *s,
+                                      struct tui_line_or_address line)
 {
-  win_info->horizontal_offset = 0;
-  tui_update_source_window_as_is (win_info, gdbarch, s, line, noerror);
+  horizontal_offset = 0;
+  update_source_window_as_is (gdbarch, s, line);
 }
 
 
@@ -251,7 +239,9 @@ tui_source_window::do_scroll_vertical (int num_to_scroll)
       l.loa = LOA_LINE;
       l.u.line_no = content[0].line_or_addr.u.line_no
        + num_to_scroll;
-      if (l.u.line_no > s->nlines)
+      const std::vector<off_t> *offsets;
+      if (g_source_cache.get_line_charpos (s, &offsets)
+         && l.u.line_no > offsets->size ())
        /* line = s->nlines - win_info->content_size + 1; */
        /* elz: fix for dts 23398.  */
        l.u.line_no = content[0].line_or_addr.u.line_no;
@@ -278,7 +268,7 @@ tui_source_window::~tui_source_window ()
 void
 tui_source_window::style_changed ()
 {
-  if (tui_active && is_visible)
+  if (tui_active && is_visible ())
     refill ();
 }
 
@@ -292,11 +282,46 @@ tui_source_window::location_matches_p (struct bp_location *loc, int line_no)
                           symtab_to_fullname (loc->symtab)) == 0);
 }
 
+/* See tui-source.h.  */
+
+bool
+tui_source_window::line_is_displayed (int line) const
+{
+  bool is_displayed = false;
+  int threshold = SCROLL_THRESHOLD;
+  int i = 0;
+  while (i < content.size () - threshold && !is_displayed)
+    {
+      is_displayed
+       = (content[i].line_or_addr.loa == LOA_LINE
+          && content[i].line_or_addr.u.line_no == line);
+      i++;
+    }
+
+  return is_displayed;
+}
+
 void
-tui_source_window_base::reset (int height, int width,
-                              int origin_x, int origin_y)
+tui_source_window::maybe_update (struct frame_info *fi, symtab_and_line sal,
+                                int line_no, CORE_ADDR addr)
 {
-  tui_gen_win_info::reset (height, width - 3,
-                          origin_x + 3, origin_y);
-  execution_info->reset (height, 3, origin_x, origin_y);
+  int start_line = (line_no - (viewport_height / 2)) + 1;
+  if (start_line <= 0)
+    start_line = 1;
+
+  bool source_already_displayed = (sal.symtab != 0
+                                  && showing_source_p (fullname));
+
+  struct tui_line_or_address l;
+
+  l.loa = LOA_LINE;
+  l.u.line_no = start_line;
+  if (!(source_already_displayed
+       && line_is_displayed (line_no)))
+    update_source_window (get_frame_arch (fi), sal.symtab, l);
+  else
+    {
+      l.u.line_no = line_no;
+      set_is_exec_point_at (l);
+    }
 }
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