From 8a9da9cf2de8189fd68be746ba55fa85b8f2b424 Mon Sep 17 00:00:00 2001
From: Emanuele Giaquinta <exg@irssi.org>
Date: Fri, 25 May 2007 22:21:39 +0000
Subject: [PATCH] Add function to delete the whole cell under the cursor and
 use it for delete_character.

git-svn-id: http://svn.irssi.org/repos/irssi/trunk@4521 dbcabf3a-b0e7-0310-adc4-f8d773084564
---
 src/fe-text/gui-entry.c    | 19 +++++++++++++++++++
 src/fe-text/gui-entry.h    |  1 +
 src/fe-text/gui-readline.c |  3 +--
 3 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/src/fe-text/gui-entry.c b/src/fe-text/gui-entry.c
index c045de83..d9744cd0 100644
--- a/src/fe-text/gui-entry.c
+++ b/src/fe-text/gui-entry.c
@@ -561,6 +561,25 @@ void gui_entry_erase(GUI_ENTRY_REC *entry, int size, int update_cutbuffer)
 	gui_entry_draw(entry);
 }
 
+void gui_entry_erase_cell(GUI_ENTRY_REC *entry)
+{
+	int size = 1;
+
+	g_return_if_fail(entry != NULL);
+
+	if (entry->utf8)
+		while (entry->pos+size < entry->text_len &&
+		       mk_wcwidth(entry->text[entry->pos+size]) == 0) size++;
+
+	g_memmove(entry->text + entry->pos, entry->text + entry->pos + size,
+		  (entry->text_len-entry->pos-size+1) * sizeof(unichar));
+
+	entry->text_len -= size;
+
+	gui_entry_redraw_from(entry, entry->pos);
+	gui_entry_draw(entry);
+}
+
 void gui_entry_erase_word(GUI_ENTRY_REC *entry, int to_space)
 {
 	int to;
diff --git a/src/fe-text/gui-entry.h b/src/fe-text/gui-entry.h
index e5ab672a..29d8dea2 100644
--- a/src/fe-text/gui-entry.h
+++ b/src/fe-text/gui-entry.h
@@ -42,6 +42,7 @@ void gui_entry_insert_char(GUI_ENTRY_REC *entry, unichar chr);
 char *gui_entry_get_cutbuffer(GUI_ENTRY_REC *entry);
 void gui_entry_erase_to(GUI_ENTRY_REC *entry, int pos, int update_cutbuffer);
 void gui_entry_erase(GUI_ENTRY_REC *entry, int size, int update_cutbuffer);
+void gui_entry_erase_cell(GUI_ENTRY_REC *entry);
 void gui_entry_erase_word(GUI_ENTRY_REC *entry, int to_space);
 void gui_entry_erase_next_word(GUI_ENTRY_REC *entry, int to_space);
 
diff --git a/src/fe-text/gui-readline.c b/src/fe-text/gui-readline.c
index 06f61e4b..78ebd351 100644
--- a/src/fe-text/gui-readline.c
+++ b/src/fe-text/gui-readline.c
@@ -697,8 +697,7 @@ static void key_upcase_word(void)
 static void key_delete_character(void)
 {
 	if (gui_entry_get_pos(active_entry) < active_entry->text_len) {
-		gui_entry_move_pos(active_entry, 1);
-		gui_entry_erase(active_entry, 1, FALSE);
+		gui_entry_erase_cell(active_entry);
 	}
 }