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From: Tom Tromey <tom@tromey.com>
To: gdb-patches@sourceware.org
Cc: Tom Tromey <tom@tromey.com>
Subject: [PATCH 40/66] Remove tui_scroll_direction enum
Date: Sun, 23 Jun 2019 23:25:00 -0000	[thread overview]
Message-ID: <20190623224329.16060-41-tom@tromey.com> (raw)
In-Reply-To: <20190623224329.16060-1-tom@tromey.com>

The tui_scroll_direction enum is not really needed, because it's
simple to adapt the various scrolling methods to use the sign of their
argument as the direction in which to scroll.

2019-06-23  Tom Tromey  <tom@tromey.com>

	* tui/tui-winsource.c
	(tui_source_window_base::do_scroll_horizontal): Remove direction
	parameter.
	* tui/tui-windata.c (tui_data_window::do_scroll_vertical): Remove
	direction parameter.
	* tui/tui-win.c (tui_win_info::forward_scroll)
	(tui_win_info::backward_scroll, tui_win_info::left_scroll)
	(tui_win_info::right_scroll): Update.
	* tui/tui-source.c (tui_source_window::do_scroll_vertical): Remove
	direction parameter.
	* tui/tui-disasm.c (tui_disasm_window::do_scroll_vertical): Remove
	direction parameter.
	* tui/tui-data.h (enum tui_scroll_direction): Remove.
	(struct tui_win_info) <do_scroll_vertical, do_scroll_horizontal>:
	Remove direction parameter.
	(struct tui_source_window_base, struct tui_source_window)
	(struct tui_disasm_window, struct tui_data_window)
	(struct tui_cmd_window): Update.
---
 gdb/ChangeLog           | 21 +++++++++++++++++++++
 gdb/tui/tui-data.h      | 37 +++++++++----------------------------
 gdb/tui/tui-disasm.c    | 13 ++++++-------
 gdb/tui/tui-source.c    | 29 ++++++++++-------------------
 gdb/tui/tui-win.c       |  8 ++++----
 gdb/tui/tui-windata.c   |  8 ++------
 gdb/tui/tui-winsource.c | 16 ++++------------
 7 files changed, 56 insertions(+), 76 deletions(-)

diff --git a/gdb/tui/tui-data.h b/gdb/tui/tui-data.h
index 01c0f167cde..92bfb39fe86 100644
--- a/gdb/tui/tui-data.h
+++ b/gdb/tui/tui-data.h
@@ -122,16 +122,6 @@ struct tui_gen_win_info
 #define MAX_TARGET_WIDTH  10
 #define MAX_PID_WIDTH     19
 
-/* Scroll direction enum.  */
-enum tui_scroll_direction
-{
-  FORWARD_SCROLL,
-  BACKWARD_SCROLL,
-  LEFT_SCROLL,
-  RIGHT_SCROLL
-};
-
-
 /* The kinds of layouts available.  */
 enum tui_layout_type
 {
@@ -264,13 +254,11 @@ protected:
 
   /* Scroll the contents vertically.  This is only called via
      forward_scroll and backward_scroll.  */
-  virtual void do_scroll_vertical (enum tui_scroll_direction,
-				   int num_to_scroll) = 0;
+  virtual void do_scroll_vertical (int num_to_scroll) = 0;
 
   /* Scroll the contents horizontally.  This is only called via
      left_scroll and right_scroll.  */
-  virtual void do_scroll_horizontal (enum tui_scroll_direction,
-				     int num_to_scroll) = 0;
+  virtual void do_scroll_horizontal (int num_to_scroll) = 0;
 
 public:
 
@@ -337,8 +325,7 @@ protected:
   ~tui_source_window_base () override;
   DISABLE_COPY_AND_ASSIGN (tui_source_window_base);
 
-  void do_scroll_horizontal (enum tui_scroll_direction,
-			     int num_to_scroll) override;
+  void do_scroll_horizontal (int num_to_scroll) override;
 
 public:
 
@@ -396,8 +383,7 @@ struct tui_source_window : public tui_source_window_base
 
 protected:
 
-  void do_scroll_vertical (enum tui_scroll_direction,
-			   int num_to_scroll) override;
+  void do_scroll_vertical (int num_to_scroll) override;
 };
 
 /* A TUI disassembly window.  */
@@ -418,8 +404,7 @@ struct tui_disasm_window : public tui_source_window_base
 
 protected:
 
-  void do_scroll_vertical (enum tui_scroll_direction,
-			   int num_to_scroll) override;
+  void do_scroll_vertical (int num_to_scroll) override;
 };
 
 struct tui_data_window : public tui_win_info
@@ -457,10 +442,8 @@ struct tui_data_window : public tui_win_info
 
 protected:
 
-  void do_scroll_vertical (enum tui_scroll_direction,
-			   int num_to_scroll) override;
-  void do_scroll_horizontal (enum tui_scroll_direction,
-			     int num_to_scroll) override
+  void do_scroll_vertical (int num_to_scroll) override;
+  void do_scroll_horizontal (int num_to_scroll) override
   {
   }
 };
@@ -495,13 +478,11 @@ struct tui_cmd_window : public tui_win_info
 
 protected:
 
-  void do_scroll_vertical (enum tui_scroll_direction,
-			   int num_to_scroll) override
+  void do_scroll_vertical (int num_to_scroll) override
   {
   }
 
-  void do_scroll_horizontal (enum tui_scroll_direction,
-			     int num_to_scroll) override
+  void do_scroll_horizontal (int num_to_scroll) override
   {
   }
 };
diff --git a/gdb/tui/tui-disasm.c b/gdb/tui/tui-disasm.c
index 0bc7c642bcd..b3d39ea8031 100644
--- a/gdb/tui/tui-disasm.c
+++ b/gdb/tui/tui-disasm.c
@@ -371,22 +371,21 @@ tui_get_low_disassembly_address (struct gdbarch *gdbarch,
 
 /* Scroll the disassembly forward or backward vertically.  */
 void
-tui_disasm_window::do_scroll_vertical
-  (enum tui_scroll_direction scroll_direction, int num_to_scroll)
+tui_disasm_window::do_scroll_vertical (int num_to_scroll)
 {
   if (content != NULL)
     {
       CORE_ADDR pc;
       struct tui_line_or_address val;
-      int dir;
 
       pc = content[0]->which_element.source.line_or_addr.u.addr;
-      num_to_scroll++;
-      dir = (scroll_direction == FORWARD_SCROLL)
-	? num_to_scroll : -num_to_scroll;
+      if (num_to_scroll >= 0)
+	num_to_scroll++;
+      else
+	--num_to_scroll;
 
       val.loa = LOA_ADDRESS;
-      val.u.addr = tui_find_disassembly_address (gdbarch, pc, dir);
+      val.u.addr = tui_find_disassembly_address (gdbarch, pc, num_to_scroll);
       tui_update_source_window_as_is (this, gdbarch,
 				      NULL, val, FALSE);
     }
diff --git a/gdb/tui/tui-source.c b/gdb/tui/tui-source.c
index 39abe81a870..54e53cf8dbd 100644
--- a/gdb/tui/tui-source.c
+++ b/gdb/tui/tui-source.c
@@ -308,8 +308,7 @@ tui_source_is_displayed (const char *fullname)
 
 /* Scroll the source forward or backward vertically.  */
 void
-tui_source_window::do_scroll_vertical
-  (enum tui_scroll_direction scroll_direction, int num_to_scroll)
+tui_source_window::do_scroll_vertical (int num_to_scroll)
 {
   if (content != NULL)
     {
@@ -323,23 +322,15 @@ tui_source_window::do_scroll_vertical
 	s = cursal.symtab;
 
       l.loa = LOA_LINE;
-      if (scroll_direction == FORWARD_SCROLL)
-	{
-	  l.u.line_no = content[0]->which_element.source.line_or_addr.u.line_no
-	    + num_to_scroll;
-	  if (l.u.line_no > s->nlines)
-	    /* line = s->nlines - win_info->content_size + 1; */
-	    /* elz: fix for dts 23398.  */
-	    l.u.line_no
-	      = content[0]->which_element.source.line_or_addr.u.line_no;
-	}
-      else
-	{
-	  l.u.line_no = content[0]->which_element.source.line_or_addr.u.line_no
-	    - num_to_scroll;
-	  if (l.u.line_no <= 0)
-	    l.u.line_no = 1;
-	}
+      l.u.line_no = content[0]->which_element.source.line_or_addr.u.line_no
+	+ num_to_scroll;
+      if (l.u.line_no > s->nlines)
+	/* line = s->nlines - win_info->content_size + 1; */
+	/* elz: fix for dts 23398.  */
+	l.u.line_no
+	  = content[0]->which_element.source.line_or_addr.u.line_no;
+      if (l.u.line_no <= 0)
+	l.u.line_no = 1;
 
       print_source_lines (s, l.u.line_no, l.u.line_no + 1, 0);
     }
diff --git a/gdb/tui/tui-win.c b/gdb/tui/tui-win.c
index 33dcb3b2f6c..b92eb505b31 100644
--- a/gdb/tui/tui-win.c
+++ b/gdb/tui/tui-win.c
@@ -475,7 +475,7 @@ tui_win_info::forward_scroll (int num_to_scroll)
   if (num_to_scroll == 0)
     num_to_scroll = height - 3;
 
-  do_scroll_vertical (FORWARD_SCROLL, num_to_scroll);
+  do_scroll_vertical (num_to_scroll);
 }
 
 void
@@ -484,7 +484,7 @@ tui_win_info::backward_scroll (int num_to_scroll)
   if (num_to_scroll == 0)
     num_to_scroll = height - 3;
 
-  do_scroll_vertical (BACKWARD_SCROLL, num_to_scroll);
+  do_scroll_vertical (- num_to_scroll);
 }
 
 
@@ -494,7 +494,7 @@ tui_win_info::left_scroll (int num_to_scroll)
   if (num_to_scroll == 0)
     num_to_scroll = 1;
 
-  do_scroll_horizontal (LEFT_SCROLL, num_to_scroll);
+  do_scroll_horizontal (num_to_scroll);
 }
 
 
@@ -504,7 +504,7 @@ tui_win_info::right_scroll (int num_to_scroll)
   if (num_to_scroll == 0)
     num_to_scroll = 1;
 
-  do_scroll_horizontal (RIGHT_SCROLL, num_to_scroll);
+  do_scroll_horizontal (- num_to_scroll);
 }
 
 
diff --git a/gdb/tui/tui-windata.c b/gdb/tui/tui-windata.c
index 739272a5d03..c5593454580 100644
--- a/gdb/tui/tui-windata.c
+++ b/gdb/tui/tui-windata.c
@@ -243,8 +243,7 @@ tui_check_data_values (struct frame_info *frame)
 
 /* Scroll the data window vertically forward or backward.  */
 void
-tui_data_window::do_scroll_vertical
-  (enum tui_scroll_direction scroll_direction, int num_to_scroll)
+tui_data_window::do_scroll_vertical (int num_to_scroll)
 {
   int first_element_no;
   int first_line = (-1);
@@ -259,10 +258,7 @@ tui_data_window::do_scroll_vertical
 
   if (first_line >= 0)
     {
-      if (scroll_direction == FORWARD_SCROLL)
-	first_line += num_to_scroll;
-      else
-	first_line -= num_to_scroll;
+      first_line += num_to_scroll;
       tui_erase_data_content (NULL);
       tui_delete_data_content_windows ();
       tui_display_data_from_line (first_line);
diff --git a/gdb/tui/tui-winsource.c b/gdb/tui/tui-winsource.c
index e55ce40a206..e56fbcb76d6 100644
--- a/gdb/tui/tui-winsource.c
+++ b/gdb/tui/tui-winsource.c
@@ -332,21 +332,13 @@ tui_source_window_base::refill ()
 /* Scroll the source forward or backward horizontally.  */
 
 void
-tui_source_window_base::do_scroll_horizontal
-  (enum tui_scroll_direction direction, int num_to_scroll)
+tui_source_window_base::do_scroll_horizontal (int num_to_scroll)
 {
   if (content != NULL)
     {
-      int offset;
-
-      if (direction == LEFT_SCROLL)
-	offset = horizontal_offset + num_to_scroll;
-      else
-	{
-	  offset = horizontal_offset - num_to_scroll;
-	  if (offset < 0)
-	    offset = 0;
-	}
+      int offset = horizontal_offset + num_to_scroll;
+      if (offset < 0)
+	offset = 0;
       horizontal_offset = offset;
       refill ();
     }
-- 
2.17.2


  parent reply	other threads:[~2019-06-23 23:25 UTC|newest]

Thread overview: 85+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-23 22:43 [PATCH 00/66] Clean up the TUI Tom Tromey
2019-06-23 22:43 ` [PATCH 12/66] Don't use TUI_DISASM_WIN in tui_disasm_window method Tom Tromey
2019-06-23 22:43 ` [PATCH 05/66] Simplify command window creation Tom Tromey
2019-06-23 22:43 ` [PATCH 10/66] Create tui_disasm_window Tom Tromey
2019-06-23 22:43 ` [PATCH 13/66] Remove tui_clear_win_detail Tom Tromey
2019-06-23 22:43 ` [PATCH 01/66] Use new and delete for TUI windows Tom Tromey
2019-06-23 22:43 ` [PATCH 08/66] Remove tui_list Tom Tromey
2019-06-24 14:12   ` Pedro Alves
2019-06-24 15:12     ` Ruslan Kabatsayev
2019-06-24 16:05       ` Pedro Alves
2019-06-24 20:47     ` Tom Tromey
2019-06-23 22:44 ` [PATCH 24/66] Introduce two TUI source window methods Tom Tromey
2019-06-23 22:44 ` [PATCH 21/66] Introduce make_visible method Tom Tromey
2019-06-23 22:44 ` [PATCH 26/66] Introduce set_new_height method Tom Tromey
2019-06-23 22:44 ` [PATCH 25/66] Introduce the refresh_all method Tom Tromey
2019-06-23 22:44 ` [PATCH 04/66] Remove an unnecessary NULL check from the TUI Tom Tromey
2019-06-23 22:44 ` [PATCH 09/66] Split the tui_win_info destructor Tom Tromey
2019-06-23 22:44 ` [PATCH 02/66] Add destructor to tui_win_info Tom Tromey
2019-06-23 22:44 ` [PATCH 17/66] Remove struct tui_data_info Tom Tromey
2019-06-23 22:44 ` [PATCH 29/66] Introduce set_highlight method Tom Tromey
2019-06-23 22:44 ` [PATCH 07/66] Introduce tui_win_info::clear_detail method Tom Tromey
2019-06-23 22:44 ` [PATCH 11/66] Introduce methods for scrolling Tom Tromey
2019-06-23 22:44 ` [PATCH 23/66] Introduce the refresh method Tom Tromey
2019-06-23 22:44 ` [PATCH 03/66] Create subclasses for different window types Tom Tromey
2019-06-24 22:21   ` Pedro Alves
2019-06-25 13:51     ` Tom Tromey
2019-06-23 22:44 ` [PATCH 20/66] Remove an unneeded NULL check Tom Tromey
2019-06-23 22:44 ` [PATCH 15/66] Remove struct tui_source_info Tom Tromey
2019-06-23 22:44 ` [PATCH 18/66] Change tui_data_window::display_regs to bool Tom Tromey
2019-06-23 22:44 ` [PATCH 19/66] Inline constructors and initializers Tom Tromey
2019-06-23 22:44 ` [PATCH 28/66] Remove redundant check from make_visible Tom Tromey
2019-06-23 22:44 ` [PATCH 14/66] Introduce has_locator method Tom Tromey
2019-06-24 14:13   ` Pedro Alves
2019-06-24 20:50     ` Tom Tromey
2019-06-23 22:44 ` [PATCH 22/66] Use bool for visibility Tom Tromey
2019-06-23 22:44 ` [PATCH 06/66] Simplify source and disassembly window creation Tom Tromey
2019-06-23 22:44 ` [PATCH 16/66] Remove struct tui_command_info Tom Tromey
2019-06-23 22:44 ` [PATCH 27/66] Introduce max_height method Tom Tromey
2019-06-23 23:25 ` Tom Tromey [this message]
2019-06-24 14:13   ` [PATCH 40/66] Remove tui_scroll_direction enum Pedro Alves
2019-06-24 20:51     ` Tom Tromey
2019-06-23 23:25 ` [PATCH 35/66] Introduce tui_gen_win_info::name method Tom Tromey
2019-06-23 23:25 ` [PATCH 34/66] Change tui_update_source_window for better type safety Tom Tromey
2019-06-23 23:25 ` [PATCH 45/66] Introduce tui_win_info::update_tab_width Tom Tromey
2019-06-23 23:25 ` [PATCH 42/66] Introduce tui_gen_win_info::reset method Tom Tromey
2019-06-23 23:25 ` [PATCH 41/66] Move make_visible method to tui_gen_win_info Tom Tromey
2019-06-23 23:26 ` [PATCH 43/66] Remove some TUI static allocations Tom Tromey
2019-06-23 23:26 ` [PATCH 38/66] Change tui_set_exec_info_content to return void Tom Tromey
2019-06-23 23:26 ` [PATCH 46/66] Introduce tui_win_info::make_visible_with_new_height Tom Tromey
2019-06-23 23:26 ` [PATCH 36/66] Change tui_alloc_source_buffer return type to void Tom Tromey
2019-06-23 23:26 ` [PATCH 37/66] Remove NULL check from tui_set_exec_info_content Tom Tromey
2019-06-23 23:26 ` [PATCH 30/66] Change tui_which_element::data_window to be a pointer Tom Tromey
2019-06-23 23:26 ` [PATCH 39/66] Change more TUI functions to take a tui_source_window_base Tom Tromey
2019-06-23 23:26 ` [PATCH 33/66] Introduce refresh_window method Tom Tromey
2019-06-23 23:26 ` [PATCH 49/66] Separate out execution-info window Tom Tromey
2019-06-24 14:13   ` Pedro Alves
2019-06-24 20:52     ` Tom Tromey
2019-06-23 23:26 ` [PATCH 48/66] Remove tui_alloc_win_info Tom Tromey
2019-06-23 23:26 ` [PATCH 31/66] Use new and delete for tui_gen_win_info Tom Tromey
2019-06-23 23:26 ` [PATCH 47/66] Don't check window type in tui_set_win_focus_to Tom Tromey
2019-06-23 23:26 ` [PATCH 44/66] Introduce enum tui_box Tom Tromey
2019-06-23 23:26 ` [PATCH 32/66] Derive tui_win_info from tui_gen_win_info Tom Tromey
2019-06-24 14:23 ` [PATCH 00/66] Clean up the TUI Pedro Alves
2019-06-24 16:47   ` Tom Tromey
2019-06-24 17:46     ` Pedro Alves
2019-06-24 18:54     ` Tom Tromey
2019-06-24 22:23       ` Pedro Alves
2019-06-25 13:51         ` Tom Tromey
2019-06-24 18:49 ` [PATCH 50/66] Separate out locator window Tom Tromey
2019-06-24 18:48   ` [PATCH 55/66] Remove tui_init_generic_part Tom Tromey
2019-06-24 18:48   ` [PATCH 53/66] Remove two unused enum constants from tui_win_type Tom Tromey
2019-06-24 18:49   ` [PATCH 65/66] Make tui_gen_win_info constructor protected Tom Tromey
2019-06-24 18:49   ` [PATCH 62/66] Remove union tui_which_element Tom Tromey
2019-06-24 18:49   ` [PATCH 57/66] Remove "data_content" and "data_content_count" from TUI data window Tom Tromey
2019-06-24 18:49   ` [PATCH 61/66] More type safety for TUI source window functions Tom Tromey
2019-06-24 18:49   ` [PATCH 64/66] Fix latent bug in set_is_exec_point_at Tom Tromey
2019-06-24 18:49   ` [PATCH 66/66] Tidy tui_delete_win Tom Tromey
2019-06-24 18:49   ` [PATCH 51/66] Remove layout_def::split Tom Tromey
2019-06-24 18:49   ` [PATCH 56/66] Turn tui_first_data_item_displayed into a method Tom Tromey
2019-06-24 18:49   ` [PATCH 59/66] Fix "auxiliary" typo Tom Tromey
2019-06-24 18:49   ` [PATCH 63/66] Remove NULL checks before xfree Tom Tromey
2019-06-24 18:49   ` [PATCH 58/66] Separate out data window Tom Tromey
2019-06-24 18:49   ` [PATCH 54/66] Separate out data item window Tom Tromey
2019-06-24 18:49   ` [PATCH 52/66] Remove command from tui_which_element Tom Tromey
2019-06-24 18:49   ` [PATCH 60/66] Use bool for is_exec_point Tom Tromey

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