Remove tui_scroll_direction enum
[deliverable/binutils-gdb.git] / gdb / tui / tui-winsource.c
index 49eb4ce6fcb06672f7652811c59767ce20704922..e56fbcb76d6df069598b22c38c5ce47277bec0ee 100644 (file)
@@ -1,6 +1,6 @@
 /* TUI display source/assembly window.
 
-   Copyright (C) 1998-2018 Free Software Foundation, Inc.
+   Copyright (C) 1998-2019 Free Software Foundation, Inc.
 
    Contributed by Hewlett-Packard Company.
 
@@ -31,6 +31,7 @@
 
 #include "tui/tui.h"
 #include "tui/tui-data.h"
+#include "tui/tui-io.h"
 #include "tui/tui-stack.h"
 #include "tui/tui-win.h"
 #include "tui/tui-wingeneral.h"
@@ -41,9 +42,9 @@
 
 /* Function to display the "main" routine.  */
 void
-tui_display_main (void)
+tui_display_main ()
 {
-  if ((tui_source_windows ())->count > 0)
+  if (!tui_source_windows ().empty ())
     {
       struct gdbarch *gdbarch;
       CORE_ADDR addr;
@@ -68,13 +69,13 @@ tui_display_main (void)
 /* Function to display source in the source window.  This function
    initializes the horizontal scroll to 0.  */
 void
-tui_update_source_window (struct tui_win_info *win_info,
+tui_update_source_window (struct tui_source_window_base *win_info,
                          struct gdbarch *gdbarch,
                          struct symtab *s,
                          struct tui_line_or_address line_or_addr,
                          int noerror)
 {
-  win_info->detail.source_info.horizontal_offset = 0;
+  win_info->horizontal_offset = 0;
   tui_update_source_window_as_is (win_info, gdbarch, s, line_or_addr, noerror);
 
   return;
@@ -84,7 +85,7 @@ tui_update_source_window (struct tui_win_info *win_info,
 /* Function to display source in the source/asm window.  This function
    shows the source as specified by the horizontal offset.  */
 void
-tui_update_source_window_as_is (struct tui_win_info *win_info, 
+tui_update_source_window_as_is (struct tui_source_window_base *win_info, 
                                struct gdbarch *gdbarch,
                                struct symtab *s,
                                struct tui_line_or_address line_or_addr, 
@@ -92,7 +93,7 @@ tui_update_source_window_as_is (struct tui_win_info *win_info,
 {
   enum tui_status ret;
 
-  if (win_info->generic.type == SRC_WIN)
+  if (win_info->type == SRC_WIN)
     ret = tui_set_source_content (s, line_or_addr.u.line_no, noerror);
   else
     ret = tui_set_disassem_content (gdbarch, line_or_addr.u.addr);
@@ -107,12 +108,12 @@ tui_update_source_window_as_is (struct tui_win_info *win_info,
       tui_update_breakpoint_info (win_info, 0);
       tui_show_source_content (win_info);
       tui_update_exec_info (win_info);
-      if (win_info->generic.type == SRC_WIN)
+      if (win_info->type == SRC_WIN)
        {
          symtab_and_line sal;
 
          sal.line = line_or_addr.u.line_no +
-           (win_info->generic.content_size - 2);
+           (win_info->content_size - 2);
          sal.symtab = s;
          sal.pspace = SYMTAB_PSPACE (s);
          set_current_source_symtab_and_line (sal);
@@ -158,12 +159,8 @@ tui_update_source_windows_with_addr (struct gdbarch *gdbarch, CORE_ADDR addr)
     }
   else
     {
-      int i;
-
-      for (i = 0; i < (tui_source_windows ())->count; i++)
+      for (struct tui_source_window_base *win_info : tui_source_windows ())
        {
-         struct tui_win_info *win_info = (tui_source_windows ())->list[i];
-
          tui_clear_source_content (win_info, EMPTY_SOURCE_PROMPT);
          tui_clear_exec_info_content (win_info);
        }
@@ -214,11 +211,11 @@ tui_clear_source_content (struct tui_win_info *win_info,
     {
       int i;
 
-      win_info->generic.content_in_use = FALSE;
+      win_info->content_in_use = FALSE;
       tui_erase_source_content (win_info, display_prompt);
-      for (i = 0; i < win_info->generic.content_size; i++)
+      for (i = 0; i < win_info->content_size; i++)
        {
-         struct tui_win_element *element = win_info->generic.content[i];
+         struct tui_win_element *element = win_info->content[i];
 
          element->which_element.source.has_break = FALSE;
          element->which_element.source.is_exec_point = FALSE;
@@ -232,17 +229,17 @@ tui_erase_source_content (struct tui_win_info *win_info,
                          int display_prompt)
 {
   int x_pos;
-  int half_width = (win_info->generic.width - 2) / 2;
+  int half_width = (win_info->width - 2) / 2;
 
-  if (win_info->generic.handle != (WINDOW *) NULL)
+  if (win_info->handle != NULL)
     {
-      werase (win_info->generic.handle);
+      werase (win_info->handle);
       tui_check_and_display_highlight_if_needed (win_info);
       if (display_prompt == EMPTY_SOURCE_PROMPT)
        {
          const char *no_src_str;
 
-         if (win_info->generic.type == SRC_WIN)
+         if (win_info->type == SRC_WIN)
            no_src_str = NO_SRC_STRING;
          else
            no_src_str = NO_DISASSEM_STRING;
@@ -250,8 +247,8 @@ tui_erase_source_content (struct tui_win_info *win_info,
            x_pos = 1;
          else
            x_pos = half_width - strlen (no_src_str);
-         mvwaddstr (win_info->generic.handle,
-                    (win_info->generic.height / 2),
+         mvwaddstr (win_info->handle,
+                    (win_info->height / 2),
                     x_pos,
                     (char *) no_src_str);
 
@@ -262,7 +259,7 @@ tui_erase_source_content (struct tui_win_info *win_info,
 
          tui_set_source_content_nil (win_info, no_src_str);
        }
-      tui_refresh_win (&win_info->generic);
+      win_info->refresh_window ();
     }
 }
 
@@ -274,84 +271,77 @@ tui_show_source_line (struct tui_win_info *win_info, int lineno)
   struct tui_win_element *line;
   int x;
 
-  line = win_info->generic.content[lineno - 1];
+  line = win_info->content[lineno - 1];
   if (line->which_element.source.is_exec_point)
-    wattron (win_info->generic.handle, A_STANDOUT);
+    tui_set_reverse_mode (win_info->handle, true);
 
-  mvwaddstr (win_info->generic.handle, lineno, 1,
-            line->which_element.source.line);
+  wmove (win_info->handle, lineno, 1);
+  tui_puts (line->which_element.source.line,
+           win_info->handle);
   if (line->which_element.source.is_exec_point)
-    wattroff (win_info->generic.handle, A_STANDOUT);
+    tui_set_reverse_mode (win_info->handle, false);
 
   /* Clear to end of line but stop before the border.  */
-  x = getcurx (win_info->generic.handle);
-  while (x + 1 < win_info->generic.width)
+  x = getcurx (win_info->handle);
+  while (x + 1 < win_info->width)
     {
-      waddch (win_info->generic.handle, ' ');
-      x = getcurx (win_info->generic.handle);
+      waddch (win_info->handle, ' ');
+      x = getcurx (win_info->handle);
     }
 }
 
 void
 tui_show_source_content (struct tui_win_info *win_info)
 {
-  if (win_info->generic.content_size > 0)
+  if (win_info->content_size > 0)
     {
       int lineno;
 
-      for (lineno = 1; lineno <= win_info->generic.content_size; lineno++)
+      for (lineno = 1; lineno <= win_info->content_size; lineno++)
         tui_show_source_line (win_info, lineno);
     }
   else
     tui_erase_source_content (win_info, TRUE);
 
   tui_check_and_display_highlight_if_needed (win_info);
-  tui_refresh_win (&win_info->generic);
-  win_info->generic.content_in_use = TRUE;
+  win_info->refresh_window ();
+  win_info->content_in_use = TRUE;
 }
 
+/* See tui-data.h.  */
 
-/* Scroll the source forward or backward horizontally.  */
 void
-tui_horizontal_source_scroll (struct tui_win_info *win_info,
-                             enum tui_scroll_direction direction,
-                             int num_to_scroll)
+tui_source_window_base::refill ()
 {
-  if (win_info->generic.content != NULL)
+  symtab *s = nullptr;
+
+  if (type == SRC_WIN)
     {
-      struct gdbarch *gdbarch = win_info->detail.source_info.gdbarch;
-      int offset;
-      struct symtab *s = NULL;
+      symtab_and_line cursal = get_current_source_symtab_and_line ();
+      s = (cursal.symtab == NULL
+          ? find_pc_line_symtab (get_frame_pc (get_selected_frame (NULL)))
+          : cursal.symtab);
+    }
 
-      if (win_info->generic.type == SRC_WIN)
-       {
-         struct symtab_and_line cursal
-           = get_current_source_symtab_and_line ();
+  tui_update_source_window_as_is (this, gdbarch, s,
+                                 content[0]
+                                   ->which_element.source.line_or_addr,
+                                 FALSE);
+}
 
-         if (cursal.symtab == NULL)
-           s = find_pc_line_symtab (get_frame_pc (get_selected_frame (NULL)));
-         else
-           s = cursal.symtab;
-       }
+/* Scroll the source forward or backward horizontally.  */
 
-      if (direction == LEFT_SCROLL)
-       offset = win_info->detail.source_info.horizontal_offset
-         + num_to_scroll;
-      else
-       {
-         offset = win_info->detail.source_info.horizontal_offset
-           - num_to_scroll;
-         if (offset < 0)
-           offset = 0;
-       }
-      win_info->detail.source_info.horizontal_offset = offset;
-      tui_update_source_window_as_is (win_info, gdbarch, s,
-                                     win_info->generic.content[0]
-                                       ->which_element.source.line_or_addr,
-                                     FALSE);
+void
+tui_source_window_base::do_scroll_horizontal (int num_to_scroll)
+{
+  if (content != NULL)
+    {
+      int offset = horizontal_offset + num_to_scroll;
+      if (offset < 0)
+       offset = 0;
+      horizontal_offset = offset;
+      refill ();
     }
-
-  return;
 }
 
 
@@ -359,15 +349,13 @@ tui_horizontal_source_scroll (struct tui_win_info *win_info,
    line_no.  */
 
 void
-tui_set_is_exec_point_at (struct tui_line_or_address l, 
-                         struct tui_win_info *win_info)
+tui_source_window_base::set_is_exec_point_at (struct tui_line_or_address l)
 {
   int changed = 0;
   int i;
-  tui_win_content content = win_info->generic.content;
 
   i = 0;
-  while (i < win_info->generic.content_size)
+  while (i < content_size)
     {
       int new_state;
       struct tui_line_or_address content_loa =
@@ -386,27 +374,22 @@ tui_set_is_exec_point_at (struct tui_line_or_address l,
         {
           changed++;
           content[i]->which_element.source.is_exec_point = new_state;
-          tui_show_source_line (win_info, i + 1);
+          tui_show_source_line (this, i + 1);
         }
       i++;
     }
   if (changed)
-    tui_refresh_win (&win_info->generic);
+    refill ();
 }
 
 /* Update the execution windows to show the active breakpoints.
    This is called whenever a breakpoint is inserted, removed or
    has its state changed.  */
 void
-tui_update_all_breakpoint_info (void)
+tui_update_all_breakpoint_info ()
 {
-  struct tui_list *list = tui_source_windows ();
-  int i;
-
-  for (i = 0; i < list->count; i++)
+  for (tui_source_window_base *win : tui_source_windows ())
     {
-      struct tui_win_info *win = list->list[i];
-
       if (tui_update_breakpoint_info (win, FALSE))
         {
           tui_update_exec_info (win);
@@ -427,16 +410,16 @@ tui_update_breakpoint_info (struct tui_win_info *win,
 {
   int i;
   int need_refresh = 0;
-  struct tui_source_info *src = &win->detail.source_info;
+  tui_source_window_base *src = (tui_source_window_base *) win;
 
-  for (i = 0; i < win->generic.content_size; i++)
+  for (i = 0; i < win->content_size; i++)
     {
       struct breakpoint *bp;
       extern struct breakpoint *breakpoint_chain;
       int mode;
       struct tui_source_element *line;
 
-      line = &win->generic.content[i]->which_element.source;
+      line = &win->content[i]->which_element.source;
       if (current_only && !line->is_exec_point)
          continue;
 
@@ -445,7 +428,7 @@ tui_update_breakpoint_info (struct tui_win_info *win,
          those that we already hit.  */
       mode = 0;
       for (bp = breakpoint_chain;
-           bp != (struct breakpoint *) NULL;
+           bp != NULL;
            bp = bp->next)
         {
          struct bp_location *loc;
@@ -491,141 +474,116 @@ tui_update_breakpoint_info (struct tui_win_info *win,
 /* Function to initialize the content of the execution info window,
    based upon the input window which is either the source or
    disassembly window.  */
-enum tui_status
-tui_set_exec_info_content (struct tui_win_info *win_info)
+void
+tui_set_exec_info_content (struct tui_source_window_base *win_info)
 {
-  enum tui_status ret = TUI_SUCCESS;
-
-  if (win_info->detail.source_info.execution_info
-      != (struct tui_gen_win_info *) NULL)
+  if (win_info->execution_info != NULL)
     {
-      struct tui_gen_win_info *exec_info_ptr
-       = win_info->detail.source_info.execution_info;
+      struct tui_gen_win_info *exec_info_ptr = win_info->execution_info;
 
       if (exec_info_ptr->content == NULL)
        exec_info_ptr->content =
-         tui_alloc_content (win_info->generic.height, exec_info_ptr->type);
-      if (exec_info_ptr->content != NULL)
-       {
-         int i;
+         tui_alloc_content (win_info->height, exec_info_ptr->type);
 
-          tui_update_breakpoint_info (win_info, 1);
-         for (i = 0; i < win_info->generic.content_size; i++)
-           {
-             struct tui_win_element *element;
-             struct tui_win_element *src_element;
-              int mode;
-
-             element = exec_info_ptr->content[i];
-             src_element = win_info->generic.content[i];
-
-              memset(element->which_element.simple_string, ' ',
-                     sizeof(element->which_element.simple_string));
-              element->which_element.simple_string[TUI_EXECINFO_SIZE - 1] = 0;
-
-             /* Now update the exec info content based upon the state
-                 of each line as indicated by the source content.  */
-              mode = src_element->which_element.source.has_break;
-              if (mode & TUI_BP_HIT)
-                element->which_element.simple_string[TUI_BP_HIT_POS] =
-                  (mode & TUI_BP_HARDWARE) ? 'H' : 'B';
-              else if (mode & (TUI_BP_ENABLED | TUI_BP_DISABLED))
-                element->which_element.simple_string[TUI_BP_HIT_POS] =
-                  (mode & TUI_BP_HARDWARE) ? 'h' : 'b';
-
-              if (mode & TUI_BP_ENABLED)
-                element->which_element.simple_string[TUI_BP_BREAK_POS] = '+';
-              else if (mode & TUI_BP_DISABLED)
-                element->which_element.simple_string[TUI_BP_BREAK_POS] = '-';
-
-              if (src_element->which_element.source.is_exec_point)
-                element->which_element.simple_string[TUI_EXEC_POS] = '>';
-           }
-         exec_info_ptr->content_size = win_info->generic.content_size;
+      tui_update_breakpoint_info (win_info, 1);
+      for (int i = 0; i < win_info->content_size; i++)
+       {
+         struct tui_win_element *element;
+         struct tui_win_element *src_element;
+         int mode;
+
+         element = exec_info_ptr->content[i];
+         src_element = win_info->content[i];
+
+         memset(element->which_element.simple_string, ' ',
+                sizeof(element->which_element.simple_string));
+         element->which_element.simple_string[TUI_EXECINFO_SIZE - 1] = 0;
+
+         /* Now update the exec info content based upon the state
+            of each line as indicated by the source content.  */
+         mode = src_element->which_element.source.has_break;
+         if (mode & TUI_BP_HIT)
+           element->which_element.simple_string[TUI_BP_HIT_POS] =
+             (mode & TUI_BP_HARDWARE) ? 'H' : 'B';
+         else if (mode & (TUI_BP_ENABLED | TUI_BP_DISABLED))
+           element->which_element.simple_string[TUI_BP_HIT_POS] =
+             (mode & TUI_BP_HARDWARE) ? 'h' : 'b';
+
+         if (mode & TUI_BP_ENABLED)
+           element->which_element.simple_string[TUI_BP_BREAK_POS] = '+';
+         else if (mode & TUI_BP_DISABLED)
+           element->which_element.simple_string[TUI_BP_BREAK_POS] = '-';
+
+         if (src_element->which_element.source.is_exec_point)
+           element->which_element.simple_string[TUI_EXEC_POS] = '>';
        }
-      else
-       ret = TUI_FAILURE;
+      exec_info_ptr->content_size = win_info->content_size;
     }
-
-  return ret;
 }
 
 
 void
-tui_show_exec_info_content (struct tui_win_info *win_info)
+tui_show_exec_info_content (struct tui_source_window_base *win_info)
 {
-  struct tui_gen_win_info *exec_info
-    = win_info->detail.source_info.execution_info;
+  struct tui_gen_win_info *exec_info = win_info->execution_info;
   int cur_line;
 
   werase (exec_info->handle);
-  tui_refresh_win (exec_info);
+  exec_info->refresh_window ();
   for (cur_line = 1; (cur_line <= exec_info->content_size); cur_line++)
     mvwaddstr (exec_info->handle,
               cur_line,
               0,
               (char *) exec_info->content[cur_line - 1]
                          ->which_element.simple_string);
-  tui_refresh_win (exec_info);
+  exec_info->refresh_window ();
   exec_info->content_in_use = TRUE;
 }
 
 
 void
-tui_erase_exec_info_content (struct tui_win_info *win_info)
+tui_erase_exec_info_content (struct tui_source_window_base *win_info)
 {
-  struct tui_gen_win_info *exec_info
-    = win_info->detail.source_info.execution_info;
+  struct tui_gen_win_info *exec_info = win_info->execution_info;
 
   werase (exec_info->handle);
-  tui_refresh_win (exec_info);
+  exec_info->refresh_window ();
 }
 
 void
-tui_clear_exec_info_content (struct tui_win_info *win_info)
+tui_clear_exec_info_content (struct tui_source_window_base *win_info)
 {
-  win_info->detail.source_info.execution_info->content_in_use = FALSE;
+  win_info->execution_info->content_in_use = FALSE;
   tui_erase_exec_info_content (win_info);
-
-  return;
 }
 
 /* Function to update the execution info window.  */
 void
-tui_update_exec_info (struct tui_win_info *win_info)
+tui_update_exec_info (struct tui_source_window_base *win_info)
 {
   tui_set_exec_info_content (win_info);
   tui_show_exec_info_content (win_info);
 }
 
-enum tui_status
+void
 tui_alloc_source_buffer (struct tui_win_info *win_info)
 {
-  char *src_line_buf;
   int i, line_width, max_lines;
 
   /* The window width/height includes the highlight box.  Determine actual
      content dimensions, including string null-terminators.  */
-  max_lines = win_info->generic.height - 2;
-  line_width = win_info->generic.width - 2 + 1;
-
-  /*
-   * Allocate the buffer for the source lines.  Do this only once
-   * since they will be re-used for all source displays.  The only
-   * other time this will be done is when a window's size changes.
-   */
-  if (win_info->generic.content == NULL)
+  max_lines = win_info->height - 2;
+  line_width = win_info->width - 2 + 1;
+
+  /* Allocate the buffer for the source lines.  */
+  if (win_info->content == NULL)
     {
-      src_line_buf = (char *) 
-       xmalloc ((max_lines * line_width) * sizeof (char));
       /* Allocate the content list.  */
-      win_info->generic.content = tui_alloc_content (max_lines, SRC_WIN);
+      win_info->content = tui_alloc_content (max_lines, SRC_WIN);
       for (i = 0; i < max_lines; i++)
-       win_info->generic.content[i]->which_element.source.line
-         = src_line_buf + (line_width * i);
+       win_info->content[i]->which_element.source.line
+         = (char *) xmalloc (line_width);
     }
-
-  return TUI_SUCCESS;
 }
 
 
@@ -644,13 +602,13 @@ tui_line_is_displayed (int line,
   else
     threshold = 0;
   i = 0;
-  while (i < win_info->generic.content_size - threshold
+  while (i < win_info->content_size - threshold
         && !is_displayed)
     {
       is_displayed
-       = win_info->generic.content[i]
+       = win_info->content[i]
            ->which_element.source.line_or_addr.loa == LOA_LINE
-         && win_info->generic.content[i]
+         && win_info->content[i]
               ->which_element.source.line_or_addr.u.line_no == line;
       i++;
     }
@@ -674,13 +632,13 @@ tui_addr_is_displayed (CORE_ADDR addr,
   else
     threshold = 0;
   i = 0;
-  while (i < win_info->generic.content_size - threshold
+  while (i < win_info->content_size - threshold
         && !is_displayed)
     {
       is_displayed
-       = win_info->generic.content[i]
+       = win_info->content[i]
            ->which_element.source.line_or_addr.loa == LOA_ADDRESS
-         && win_info->generic.content[i]
+         && win_info->content[i]
               ->which_element.source.line_or_addr.u.addr == addr;
       i++;
     }
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