Add color support for input bar

3 files changed, 121 insertions, 22 deletions

diff --git a/src/fe-text/gui-entry.c b/src/fe-text/gui-entry.c
index e91fcfb3..3e275e34 100644
--- a/src/fe-text/gui-entry.c
+++ b/src/fe-text/gui-entry.c
@@ -65,6 +65,8 @@ static void entry_text_grow(GUI_ENTRY_REC *entry, int grow_size)
 	entry->text_alloc = nearest_power(entry->text_alloc+grow_size);
 	entry->text = g_realloc(entry->text,
 				sizeof(unichar) * entry->text_alloc);
+	entry->colors = g_realloc(entry->colors,
+	                        sizeof(int) * entry->text_alloc);
 }
 
 GUI_ENTRY_REC *gui_entry_create(int xpos, int ypos, int width, int utf8)
@@ -74,11 +76,12 @@ GUI_ENTRY_REC *gui_entry_create(int xpos, int ypos, int width, int utf8)
 	rec = g_new0(GUI_ENTRY_REC, 1);
 	rec->xpos = xpos;
 	rec->ypos = ypos;
-        rec->width = width;
-        rec->text_alloc = 1024;
+	rec->width = width;
+	rec->text_alloc = 1024;
 	rec->text = g_new(unichar, rec->text_alloc);
-        rec->text[0] = '\0';
-        rec->utf8 = utf8;
+	rec->colors = g_new(int, rec->text_alloc);
+	rec->text[0] = '\0';
+	rec->utf8 = utf8;
 	return rec;
 }
 
@@ -100,9 +103,10 @@ void gui_entry_destroy(GUI_ENTRY_REC *entry)
 	}
 	g_slist_free(entry->kill_ring);
 
-        g_free(entry->text);
+	g_free(entry->text);
+	g_free(entry->colors);
 	g_free(entry->prompt);
-        g_free(entry);
+	g_free(entry);
 }
 
 /* big5 functions */
@@ -238,7 +242,8 @@ static void gui_entry_fix_cursor(GUI_ENTRY_REC *entry)
 static void gui_entry_draw_from(GUI_ENTRY_REC *entry, int pos)
 {
 	int i;
-	int xpos, end_xpos;
+	const int *col;
+	int xpos, end_xpos, color;
 
 	xpos = entry->xpos + entry->promptlen +
 		pos2scrpos(entry, pos + entry->scrstart) -
@@ -248,10 +253,13 @@ static void gui_entry_draw_from(GUI_ENTRY_REC *entry, int pos)
 	if (xpos > end_xpos)
                 return;
 
+	color = ATTR_RESET;
 	term_set_color(root_window, ATTR_RESET);
 	term_move(root_window, xpos, entry->ypos);
 
-	for (i = entry->scrstart + pos; i < entry->text_len; i++) {
+	col = entry->scrstart + pos < entry->text_len ?
+			entry->colors + entry->scrstart + pos : 0;
+	for (i = entry->scrstart + pos; i < entry->text_len; i++, col++) {
 		unichar c = entry->text[i];
 
 		if (entry->hidden)
@@ -266,6 +274,11 @@ static void gui_entry_draw_from(GUI_ENTRY_REC *entry, int pos)
 		if (xpos > end_xpos)
 			break;
 
+		if (*col != color) {
+			term_set_color(root_window, *col);
+			color = *col;
+		}
+
 		if (entry->hidden)
                         term_addch(root_window, ' ');
 		else if (unichar_isprint(c))
@@ -273,7 +286,7 @@ static void gui_entry_draw_from(GUI_ENTRY_REC *entry, int pos)
 		else {
 			term_set_color(root_window, ATTR_RESET|ATTR_REVERSE);
 			term_addch(root_window, (c & 127)+'A'-1);
-			term_set_color(root_window, ATTR_RESET);
+			term_set_color(root_window, color);
 		}
 	}
 
@@ -488,6 +501,10 @@ void gui_entry_insert_text(GUI_ENTRY_REC *entry, const char *str)
 	g_memmove(entry->text + entry->pos + len, entry->text + entry->pos,
 		  (entry->text_len-entry->pos + 1) * sizeof(unichar));
 
+	/* make space for the color */
+	g_memmove(entry->colors + entry->pos + len, entry->colors + entry->pos,
+	          (entry->text_len-entry->pos) * sizeof(int));
+
 	if (!entry->utf8) {
 		if (term_type == TERM_TYPE_BIG5) {
 			chr = entry->text[entry->pos + len];
@@ -505,6 +522,10 @@ void gui_entry_insert_text(GUI_ENTRY_REC *entry, const char *str)
 		}
 	}
 
+	for(i = 0; i < len; i++) {
+		entry->colors[entry->pos + i] = ATTR_RESET;
+	}
+
 	entry->text_len += len;
         entry->pos += len;
 
@@ -514,7 +535,7 @@ void gui_entry_insert_text(GUI_ENTRY_REC *entry, const char *str)
 
 void gui_entry_insert_char(GUI_ENTRY_REC *entry, unichar chr)
 {
-        g_return_if_fail(entry != NULL);
+	g_return_if_fail(entry != NULL);
 
 	if (chr == 0 || chr == 13 || chr == 10)
 		return; /* never insert NUL, CR or LF characters */
@@ -522,7 +543,7 @@ void gui_entry_insert_char(GUI_ENTRY_REC *entry, unichar chr)
 	if (entry->utf8 && entry->pos == 0 && mk_wcwidth(chr) == 0)
 		return;
 
-        gui_entry_redraw_from(entry, entry->pos);
+	gui_entry_redraw_from(entry, entry->pos);
 
 	entry_text_grow(entry, 1);
 
@@ -530,9 +551,14 @@ void gui_entry_insert_char(GUI_ENTRY_REC *entry, unichar chr)
 	g_memmove(entry->text + entry->pos + 1, entry->text + entry->pos,
 		  (entry->text_len-entry->pos + 1) * sizeof(unichar));
 
+	g_memmove(entry->colors + entry->pos + 1, entry->colors + entry->pos,
+	          (entry->text_len-entry->pos) * sizeof(int));
+
+
 	entry->text[entry->pos] = chr;
+	entry->colors[entry->pos] = ATTR_RESET;
 	entry->text_len++;
-        entry->pos++;
+	entry->pos++;
 
 	gui_entry_fix_cursor(entry);
 	gui_entry_draw(entry);
@@ -700,6 +726,9 @@ void gui_entry_erase(GUI_ENTRY_REC *entry, int size, CUTBUFFER_UPDATE_OP update_
 	g_memmove(entry->text + entry->pos - size, entry->text + entry->pos,
 		  (entry->text_len-entry->pos+1) * sizeof(unichar));
 
+	g_memmove(entry->colors + entry->pos - size, entry->colors + entry->pos,
+		(entry->text_len - entry->pos) * sizeof(int));
+
 	entry->pos -= size;
         entry->text_len -= size;
 
@@ -719,7 +748,10 @@ void gui_entry_erase_cell(GUI_ENTRY_REC *entry)
 		       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-entry->pos-size+1) * sizeof(unichar));
+
+	g_memmove(entry->colors + entry->pos, entry->colors + entry->pos + size,
+	          (entry->text_len-entry->pos-size) * sizeof(int));
 
 	entry->text_len -= size;
 
@@ -782,6 +814,7 @@ void gui_entry_erase_next_word(GUI_ENTRY_REC *entry, int to_space, CUTBUFFER_UPD
 void gui_entry_transpose_chars(GUI_ENTRY_REC *entry)
 {
         unichar chr;
+	int color;
 
 	if (entry->pos == 0 || entry->text_len < 2)
                 return;
@@ -794,6 +827,10 @@ void gui_entry_transpose_chars(GUI_ENTRY_REC *entry)
 	entry->text[entry->pos] = entry->text[entry->pos-1];
         entry->text[entry->pos-1] = chr;
 
+	color = entry->colors[entry->pos];
+	entry->colors[entry->pos] = entry->colors[entry->pos-1];
+	entry->colors[entry->pos-1] = color;
+
         entry->pos++;
 
 	gui_entry_redraw_from(entry, entry->pos-2);
@@ -830,31 +867,55 @@ void gui_entry_transpose_words(GUI_ENTRY_REC *entry)
 	/* do wordswap if any found */
 	if (spos1 < epos1 && epos1 < spos2 && spos2 < epos2) {
 		unichar *first, *sep, *second;
+		int *first_color, *sep_color, *second_color;
 		int i;
 
 		first  = (unichar *) g_malloc( (epos1 - spos1) * sizeof(unichar) );
 		sep    = (unichar *) g_malloc( (spos2 - epos1) * sizeof(unichar) );
 		second = (unichar *) g_malloc( (epos2 - spos2) * sizeof(unichar) );
 
-		for (i = spos1; i < epos1; i++)
+		first_color  = (int *) g_malloc( (epos1 - spos1) * sizeof(int) );
+		sep_color    = (int *) g_malloc( (spos2 - epos1) * sizeof(int) );
+		second_color = (int *) g_malloc( (epos2 - spos2) * sizeof(int) );
+
+		for (i = spos1; i < epos1; i++) {
 			first[i-spos1] = entry->text[i];
-		for (i = epos1; i < spos2; i++)
+			first_color[i-spos1] = entry->colors[i];
+		}
+		for (i = epos1; i < spos2; i++) {
 			sep[i-epos1] = entry->text[i];
-		for (i = spos2; i < epos2; i++)
+			sep_color[i-epos1] = entry->colors[i];
+		}
+		for (i = spos2; i < epos2; i++) {
 			second[i-spos2] = entry->text[i];
+			second_color[i-spos2] = entry->colors[i];
+		}
 
 		entry->pos = spos1;
-		for (i = 0; i < epos2-spos2; i++)
-			entry->text[entry->pos++] = second[i];
-		for (i = 0; i < spos2-epos1; i++)
-			entry->text[entry->pos++] = sep[i];
-		for (i = 0; i < epos1-spos1; i++)
-			entry->text[entry->pos++] = first[i];
+		for (i = 0; i < epos2-spos2; i++) {
+			entry->text[entry->pos] = second[i];
+			entry->colors[entry->pos] = second_color[i];
+			entry->pos++;
+		}
+		for (i = 0; i < spos2-epos1; i++) {
+			entry->text[entry->pos] = sep[i];
+			entry->colors[entry->pos] = sep_color[i];
+			entry->pos++;
+		}
+		for (i = 0; i < epos1-spos1; i++) {
+			entry->text[entry->pos] = first[i];
+			entry->colors[entry->pos] = first_color[i];
+			entry->pos++;
+		}
 
 		g_free(first);
 		g_free(sep);
 		g_free(second);
 
+		g_free(first_color);
+		g_free(sep_color);
+		g_free(second_color);
+
 	}
 
 	gui_entry_redraw_from(entry, spos1);
@@ -1042,3 +1103,31 @@ void gui_entry_redraw(GUI_ENTRY_REC *entry)
 	gui_entry_fix_cursor(entry);
 	gui_entry_draw(entry);
 }
+
+void gui_entry_set_color(GUI_ENTRY_REC *entry, int pos, int len, int color)
+{
+	int i, end, update = 0;
+
+	g_return_if_fail(entry != NULL);
+
+	if (pos > entry->text_len)
+		return;
+
+	end = pos + len;
+
+	if (end > entry->text_len)
+		end = entry->text_len;
+
+	for (i = pos; i < end; i++) {
+		if (entry->colors[i] != color) {
+			entry->colors[i] = color;
+			update = 1;
+		}
+	}
+
+	if (update) {
+		gui_entry_redraw_from(entry, pos);
+		gui_entry_fix_cursor(entry);
+		gui_entry_draw(entry);
+	}
+}
diff --git a/src/fe-text/gui-entry.h b/src/fe-text/gui-entry.h
index 000c5f03..18cc5a4d 100644
--- a/src/fe-text/gui-entry.h
+++ b/src/fe-text/gui-entry.h
@@ -9,6 +9,7 @@ typedef struct {
 typedef struct {
 	int text_len, text_alloc; /* as shorts, not chars */
 	unichar *text;
+	int *colors;
 
 	GSList *kill_ring;
 
@@ -77,5 +78,6 @@ void gui_entry_move_words(GUI_ENTRY_REC *entry, int count, int to_space);
 
 void gui_entry_redraw(GUI_ENTRY_REC *entry);
 
+void gui_entry_set_color(GUI_ENTRY_REC *entry, int pos, int len, int color);
 
 #endif
diff --git a/src/perl/textui/TextUI.xs b/src/perl/textui/TextUI.xs
index 12732e3f..02ef6c73 100644
--- a/src/perl/textui/TextUI.xs
+++ b/src/perl/textui/TextUI.xs
@@ -124,6 +124,14 @@ gui_input_set(str)
 CODE:
 	gui_entry_set_text(active_entry, str);
 
+void
+gui_input_color(pos, len, color)
+	int pos
+	int len
+	int color
+CODE:
+	gui_entry_set_color(active_entry, pos, len, color);
+
 int
 gui_input_get_pos()
 CODE: