Change "winheight" resizing to use new layout code
authorTom Tromey <tom@tromey.com>
Sat, 26 Oct 2019 22:37:32 +0000 (16:37 -0600)
committerTom Tromey <tom@tromey.com>
Wed, 11 Dec 2019 22:49:03 +0000 (15:49 -0700)
The "winheight" command resizes a specified window, resizing the other
windows in the layout to adapt.  In the current code, this is done by
examining each possible layout separately.  The new layout code has a
more general approach to handling this, and this patch simply removes
the old code in favor of a call into the new layout engine.

gdb/ChangeLog
2019-12-11  Tom Tromey  <tom@tromey.com>

* tui/tui-win.c (tui_set_win_height_command): Call
tui_adjust_window_height.
(tui_adjust_win_heights, new_height_ok): Remove.
* tui/tui-layout.h (tui_adjust_window_height): Declare.
* tui/tui-layout.c (tui_adjust_window_height): New function.

Change-Id: I6bb681375a46adc8d29fd06f581deed4e078e78a

gdb/ChangeLog
gdb/tui/tui-layout.c
gdb/tui/tui-layout.h
gdb/tui/tui-win.c

index 22cebfb2f7a1b1c92b1cdfba7808c9c260278229..c80c5403516c39c5545c20b3120e8daa524de605 100644 (file)
@@ -1,3 +1,11 @@
+2019-12-11  Tom Tromey  <tom@tromey.com>
+
+       * tui/tui-win.c (tui_set_win_height_command): Call
+       tui_adjust_window_height.
+       (tui_adjust_win_heights, new_height_ok): Remove.
+       * tui/tui-layout.h (tui_adjust_window_height): Declare.
+       * tui/tui-layout.c (tui_adjust_window_height): New function.
+
 2019-12-11  Tom Tromey  <tom@tromey.com>
 
        * tui/tui-win.c (tui_resize_all): Remove code, call
index 1884c2add7bc3eed75f8535d86dcf792ca099c0d..9ab89a87fa4154bfa3d7eff7b957aa8dd1265e0f 100644 (file)
@@ -70,6 +70,14 @@ tui_apply_current_layout ()
   applied_layout->apply (0, 0, tui_term_width (), tui_term_height ());
 }
 
+/* See tui-layout.  */
+
+void
+tui_adjust_window_height (struct tui_win_info *win, int new_height)
+{
+  applied_layout->adjust_size (win->name (), new_height);
+}
+
 /* Show the screen layout defined.  */
 static void
 show_layout (enum tui_layout_type layout)
index a9346ef504b465bbe4b3168cbc5059863fa2e9ac..691d4ad2e22b05a0ba6f09e9310d980ef9439aed 100644 (file)
@@ -177,4 +177,8 @@ extern void tui_set_layout (enum tui_layout_type);
 /* Apply the current layout.  */
 extern void tui_apply_current_layout ();
 
+/* Adjust the window height of WIN to NEW_HEIGHT.  */
+extern void tui_adjust_window_height (struct tui_win_info *win,
+                                     int new_height);
+
 #endif /* TUI_TUI_LAYOUT_H */
index 199f3bafc21f95a246ad23ee883e084e84453691..ac3690a7f456e90e15f5ca32872e0ad07a34e086 100644 (file)
@@ -56,9 +56,6 @@
 
 #include <signal.h>
 
-static enum tui_status tui_adjust_win_heights (struct tui_win_info *, 
-                                              int);
-static int new_height_ok (struct tui_win_info *, int);
 static void tui_set_tab_width_command (const char *, int);
 static void tui_refresh_all_command (const char *, int);
 static void tui_all_windows_info (const char *, int);
@@ -932,12 +929,8 @@ tui_set_win_height_command (const char *arg, int from_tty)
 
                  /* Now change the window's height, and adjust
                     all other windows around it.  */
-                 if (tui_adjust_win_heights (win_info,
-                                             new_height) == TUI_FAILURE)
-                   warning (_("Invalid window height specified.\n%s"),
-                            WIN_HEIGHT_USAGE);
-                 else
-                   tui_update_gdb_sizes ();
+                 tui_adjust_window_height (win_info, new_height);
+                 tui_update_gdb_sizes ();
                }
              else
                warning (_("Invalid window height specified.\n%s"),
@@ -951,170 +944,6 @@ tui_set_win_height_command (const char *arg, int from_tty)
     printf_filtered (WIN_HEIGHT_USAGE);
 }
 
-/* Function to adjust all window heights around the primary.   */
-static enum tui_status
-tui_adjust_win_heights (struct tui_win_info *primary_win_info,
-                       int new_height)
-{
-  enum tui_status status = TUI_FAILURE;
-
-  if (new_height_ok (primary_win_info, new_height))
-    {
-      status = TUI_SUCCESS;
-      if (new_height != primary_win_info->height)
-       {
-         int diff;
-         struct tui_win_info *win_info;
-         struct tui_locator_window *locator = tui_locator_win_info_ptr ();
-         enum tui_layout_type cur_layout = tui_current_layout ();
-         int width = tui_term_width ();
-
-         diff = (new_height - primary_win_info->height) * (-1);
-         if (cur_layout == SRC_COMMAND 
-             || cur_layout == DISASSEM_COMMAND)
-           {
-             struct tui_win_info *src_win_info;
-
-             primary_win_info->resize (new_height, width,
-                                       0, primary_win_info->y);
-             if (primary_win_info->type == CMD_WIN)
-               {
-                 win_info = *(tui_source_windows ().begin ());
-                 src_win_info = win_info;
-               }
-             else
-               {
-                 win_info = tui_win_list[CMD_WIN];
-                 src_win_info = primary_win_info;
-               }
-             win_info->resize (win_info->height + diff, width,
-                               0, win_info->y);
-             TUI_CMD_WIN->y = locator->y + 1;
-             if ((src_win_info->type == SRC_WIN
-                  || src_win_info->type == DISASSEM_WIN))
-               {
-                 tui_source_window_base *src_base
-                   = (tui_source_window_base *) src_win_info;
-                 if (src_base->content.empty ())
-                   src_base->erase_source_content ();
-               }
-           }
-         else
-           {
-             struct tui_win_info *first_win;
-             struct tui_source_window_base *second_win;
-             tui_source_window_base *src1;
-
-             if (cur_layout == SRC_DISASSEM_COMMAND)
-               {
-                 src1 = TUI_SRC_WIN;
-                 first_win = src1;
-                 second_win = TUI_DISASM_WIN;
-               }
-             else
-               {
-                 src1 = nullptr;
-                 first_win = TUI_DATA_WIN;
-                 second_win = *(tui_source_windows ().begin ());
-               }
-             if (primary_win_info == TUI_CMD_WIN)
-               { /* Split the change in height across the 1st & 2nd
-                    windows, adjusting them as well.  */
-                 /* Subtract the locator.  */
-                 int first_split_diff = diff / 2;
-                 int second_split_diff = first_split_diff;
-
-                 if (diff % 2)
-                   {
-                     if (first_win->height >
-                         second_win->height)
-                       if (diff < 0)
-                         first_split_diff--;
-                       else
-                         first_split_diff++;
-                     else
-                       {
-                         if (diff < 0)
-                           second_split_diff--;
-                         else
-                           second_split_diff++;
-                       }
-                   }
-                 /* Make sure that the minimum heights are
-                    honored.  */
-                 while ((first_win->height + first_split_diff) < 3)
-                   {
-                     first_split_diff++;
-                     second_split_diff--;
-                   }
-                 while ((second_win->height + second_split_diff) < 3)
-                   {
-                     second_split_diff++;
-                     first_split_diff--;
-                   }
-                 first_win->resize (first_win->height + first_split_diff,
-                                    width,
-                                    0, first_win->y);
-                 second_win->resize (second_win->height + second_split_diff,
-                                     width,
-                                     0, first_win->height - 1);
-                 locator->resize (1, width,
-                                  0, (second_win->y
-                                      + second_win->height + 1));
-
-                 TUI_CMD_WIN->resize (new_height, width,
-                                      0, locator->y + 1);
-               }
-             else
-               {
-                 if ((TUI_CMD_WIN->height + diff) < 1)
-                   { /* If there is no way to increase the command
-                        window take real estate from the 1st or 2nd
-                        window.  */
-                     if ((TUI_CMD_WIN->height + diff) < 1)
-                       {
-                         int i;
-
-                         for (i = TUI_CMD_WIN->height + diff;
-                              (i < 1); i++)
-                           if (primary_win_info == first_win)
-                             second_win->height--;
-                           else
-                             first_win->height--;
-                       }
-                   }
-                 if (primary_win_info == first_win)
-                   first_win->resize (new_height, width, 0, 0);
-                 else
-                   first_win->resize (first_win->height, width, 0, 0);
-                 second_win->y = first_win->height - 1;
-                 if (primary_win_info == second_win)
-                   second_win->resize (new_height, width,
-                                       0, first_win->height - 1);
-                 else
-                   second_win->resize (second_win->height, width,
-                                       0, first_win->height - 1);
-                 locator->resize (1, width,
-                                  0, (second_win->y
-                                      + second_win->height + 1));
-                 TUI_CMD_WIN->y = locator->y + 1;
-                 if ((TUI_CMD_WIN->height + diff) < 1)
-                   TUI_CMD_WIN->resize (1, width, 0, locator->y + 1);
-                 else
-                   TUI_CMD_WIN->resize (TUI_CMD_WIN->height + diff, width,
-                                        0, locator->y + 1);
-               }
-             if (src1 != nullptr && src1->content.empty ())
-               src1->erase_source_content ();
-             if (second_win->content.empty ())
-               second_win->erase_source_content ();
-           }
-       }
-    }
-
-  return status;
-}
-
 /* See tui-data.h.  */
 
 int
@@ -1123,112 +952,6 @@ tui_win_info::max_height () const
   return tui_term_height () - 2;
 }
 
-static int
-new_height_ok (struct tui_win_info *primary_win_info, 
-              int new_height)
-{
-  int ok = (new_height < tui_term_height ());
-
-  if (ok)
-    {
-      int diff;
-      enum tui_layout_type cur_layout = tui_current_layout ();
-
-      diff = (new_height - primary_win_info->height) * (-1);
-      if (cur_layout == SRC_COMMAND || cur_layout == DISASSEM_COMMAND)
-       {
-         ok = (new_height <= primary_win_info->max_height ()
-               && new_height >= MIN_CMD_WIN_HEIGHT);
-         if (ok)
-           {                   /* Check the total height.  */
-             struct tui_win_info *win_info;
-
-             if (primary_win_info == TUI_CMD_WIN)
-               win_info = *(tui_source_windows ().begin ());
-             else
-               win_info = TUI_CMD_WIN;
-             ok = ((new_height +
-                    (win_info->height + diff)) <= tui_term_height ());
-           }
-       }
-      else
-       {
-         int cur_total_height, total_height, min_height = 0;
-         struct tui_win_info *first_win;
-         struct tui_win_info *second_win;
-
-         if (cur_layout == SRC_DISASSEM_COMMAND)
-           {
-             first_win = TUI_SRC_WIN;
-             second_win = TUI_DISASM_WIN;
-           }
-         else
-           {
-             first_win = TUI_DATA_WIN;
-             second_win = *(tui_source_windows ().begin ());
-           }
-         /* We could simply add all the heights to obtain the same
-            result but below is more explicit since we subtract 1 for
-            the line that the first and second windows share, and add
-            one for the locator.  */
-         total_height = cur_total_height =
-           (first_win->height + second_win->height - 1)
-           + TUI_CMD_WIN->height + 1;  /* Locator. */
-         if (primary_win_info == TUI_CMD_WIN)
-           {
-             /* Locator included since first & second win share a line.  */
-             ok = ((first_win->height +
-                    second_win->height + diff) >=
-                   (MIN_WIN_HEIGHT * 2) 
-                   && new_height >= MIN_CMD_WIN_HEIGHT);
-             if (ok)
-               {
-                 total_height = new_height + 
-                   (first_win->height +
-                    second_win->height + diff);
-                 min_height = MIN_CMD_WIN_HEIGHT;
-               }
-           }
-         else
-           {
-             min_height = MIN_WIN_HEIGHT;
-
-             /* First see if we can increase/decrease the command
-                window.  And make sure that the command window is at
-                least 1 line.  */
-             ok = ((TUI_CMD_WIN->height + diff) > 0);
-             if (!ok)
-               { /* Looks like we have to increase/decrease one of
-                    the other windows.  */
-                 if (primary_win_info == first_win)
-                   ok = (second_win->height + diff) >= min_height;
-                 else
-                   ok = (first_win->height + diff) >= min_height;
-               }
-             if (ok)
-               {
-                 if (primary_win_info == first_win)
-                   total_height = new_height +
-                     second_win->height +
-                     TUI_CMD_WIN->height + diff;
-                 else
-                   total_height = new_height +
-                     first_win->height +
-                     TUI_CMD_WIN->height + diff;
-               }
-           }
-         /* Now make sure that the proposed total height doesn't
-            exceed the old total height.  */
-         if (ok)
-           ok = (new_height >= min_height 
-                 && total_height <= cur_total_height);
-       }
-    }
-
-  return ok;
-}
-
-
 static void
 parse_scrolling_args (const char *arg, 
                      struct tui_win_info **win_to_scroll,
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