Major reorganisation of screen handling.

1 files changed, 117 insertions, 110 deletions

diff --git a/window-more.c b/window-more.c
index 618b4f81..64e4f03f 100644
--- a/window-more.c
+++ b/window-more.c
@@ -1,4 +1,4 @@
-/* $Id: window-more.c,v 1.5 2007-11-27 19:23:34 nicm Exp $ */
+/* $Id: window-more.c,v 1.6 2007-12-06 09:46:23 nicm Exp $ */
 
 /*
  * Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
@@ -23,25 +23,27 @@
 #include "tmux.h"
 
 void	window_more_init(struct window *);
+void	window_more_free(struct window *);
 void	window_more_resize(struct window *, u_int, u_int);
-void	window_more_draw(
-    	    struct window *, struct screen_draw_ctx *, u_int, u_int);
 void	window_more_key(struct window *, int);
 
-void	window_more_draw_position(struct window *, struct screen_draw_ctx *);
-void	window_more_draw_line(struct window *, struct screen_draw_ctx *, u_int);
+void	window_more_redraw_screen(struct window *);
+void	window_more_write_line(
+    	    struct window *, struct screen_write_ctx *, u_int);
 
-void	window_more_up_1(struct window *);
-void	window_more_down_1(struct window *);
+void	window_more_scroll_up(struct window *);
+void	window_more_scroll_down(struct window *);
 
 const struct window_mode window_more_mode = {
 	window_more_init,
+	window_more_free,
 	window_more_resize,
-	window_more_draw,
 	window_more_key
 };
 
 struct window_more_mode_data {
+	struct screen	        screen;
+
 	ARRAY_DECL(, char *)	list;
 	u_int			top;
 };
@@ -50,10 +52,25 @@ void
 window_more_vadd(struct window *w, const char *fmt, va_list ap)
 {
 	struct window_more_mode_data	*data = w->modedata;
-	char   				*s;
+	struct screen			*s = &data->screen;
+	struct screen_write_ctx	 	 ctx;
+	char   				*msg;
+	u_int				 size;
+
+	xvasprintf(&msg, fmt, ap);
+	ARRAY_ADD(&data->list, msg);
 
-	xvasprintf(&s, fmt, ap);
-	ARRAY_ADD(&data->list, s);
+	size = ARRAY_LENGTH(&data->list);
+	if (size == 0)
+		return;
+	size--;
+	if (size >= data->top && size <= data->top + screen_last_y(s)) {
+		screen_write_start_window(&ctx, w);
+		window_more_write_line(w, &ctx, size - data->top);
+		if (size != data->top)
+			window_more_write_line(w, &ctx, 0);
+		screen_write_stop(&ctx);
+	}
 }
 
 void
@@ -70,170 +87,160 @@ void
 window_more_init(struct window *w)
 {
 	struct window_more_mode_data	*data;
+	struct screen			*s;
 
 	w->modedata = data = xmalloc(sizeof *data);
 	ARRAY_INIT(&data->list);
 	data->top = 0;
 
-	w->screen.mode |= MODE_BACKGROUND;
-	w->screen.mode &= ~MODE_BGCURSOR;
-}
-
-void
-window_more_resize(unused struct window *w, unused u_int sx, unused u_int sy)
-{
+	s = &data->screen;
+	screen_create(s, screen_size_x(&w->base), screen_size_y(&w->base));
+	s->mode = 0;
+	w->screen = s;
 }
 
 void
-window_more_draw_position(struct window *w, struct screen_draw_ctx *ctx)
+window_more_free(struct window *w)
 {
 	struct window_more_mode_data	*data = w->modedata;
-	char				*ptr, buf[32];
-	size_t	 			 len;
-	char				*line;
-
-	len = xsnprintf(
-	    buf, sizeof buf, "[%u/%u]", data->top, ARRAY_LENGTH(&data->list));
-	if (len <= screen_size_x(ctx->s))
-		ptr = buf;
-	else {
-		ptr = buf + len - screen_size_x(ctx->s);
-		len -= len - screen_size_x(ctx->s);
-	}
+	u_int				 i;
 
-	screen_draw_move_cursor(ctx, 0, 0);
+	w->screen = &w->base;
+	screen_destroy(&data->screen);
 
-	if (data->top < ARRAY_LENGTH(&data->list)) {
-		line = xstrdup(ARRAY_ITEM(&data->list, data->top));
-		if (strlen(line) > screen_size_x(ctx->s) - len)
-			line[screen_size_x(ctx->s) - len] = '\0';
-		screen_draw_write_string(ctx, "%s", line);
-		xfree(line);
-	}
-	screen_draw_clear_line_to(ctx, screen_size_x(ctx->s) - len - 1);
+	for (i = 0; i < ARRAY_LENGTH(&data->list); i++)
+		xfree(ARRAY_ITEM(&data->list, i));
+	ARRAY_FREE(&data->list);
 
-	screen_draw_move_cursor(ctx, screen_size_x(ctx->s) - len, 0);
-	screen_draw_set_attributes(ctx, 0, status_colour);
-	screen_draw_write_string(ctx, "%s", ptr);
+	w->mode = NULL;
+	xfree(w->modedata);
 }
 
 void
-window_more_draw_line(struct window *w, struct screen_draw_ctx *ctx, u_int py)
+window_more_resize(struct window *w, u_int sx, u_int sy)
 {
 	struct window_more_mode_data	*data = w->modedata;
-	u_int				 p;
+	struct screen			*s = &data->screen;
 
-	screen_draw_move_cursor(ctx, 0, py);
-	screen_draw_set_attributes(ctx, SCREEN_DEFATTR, SCREEN_DEFCOLR);
-	
-	p = data->top + py;
-	if (p < ARRAY_LENGTH(&data->list))
-		screen_draw_write_string(ctx, "%s", ARRAY_ITEM(&data->list, p));
-
-	screen_draw_clear_line_to(ctx, screen_last_x(ctx->s));
-}
-
-void
-window_more_draw(
-    struct window *w, struct screen_draw_ctx *ctx, u_int py, u_int ny)
-{
-	u_int	i;
-
-	for (i = py; i < py + ny; i++) {
-		if (i == 0)
-			window_more_draw_position(w, ctx);
-		else
-			window_more_draw_line(w, ctx, i);
-	}
+	screen_resize(s, sx, sy);
+	window_more_redraw_screen(w);
 }
 
 void
 window_more_key(struct window *w, int key)
 {
 	struct window_more_mode_data	*data = w->modedata;
-	u_int				 top, sy, i;
-	
-	sy = screen_size_y(&w->screen);
-
-	top = data->top;
+	struct screen			*s = &data->screen;
 
 	switch (key) {
 	case 'Q':
 	case 'q':
-		for (i = 0; i < ARRAY_LENGTH(&data->list); i++)
-			xfree(ARRAY_ITEM(&data->list, i));
-		ARRAY_FREE(&data->list);
-
-		w->mode = NULL;
-		xfree(w->modedata);
-
-		w->screen.mode &= ~MODE_BACKGROUND;
-
-		recalculate_sizes();
+		window_more_free(w);
 		server_redraw_window(w);
-		return;
+		break;
 	case 'k':
 	case 'K':
 	case KEYC_UP:
-		window_more_up_1(w);
-		return;
+		window_more_scroll_up(w);
+		break;
 	case 'j':
 	case 'J':
 	case KEYC_DOWN:
-		window_more_down_1(w);
-		return;
+		window_more_scroll_down(w);
+		break;
 	case '\025':	/* C-u */
 	case KEYC_PPAGE:
-		if (data->top < sy)
+		if (data->top < screen_size_y(s))
 			data->top = 0;
 		else
-			data->top -= sy;
+			data->top -= screen_size_y(s);
+		window_more_redraw_screen(w);
 		break;
 	case '\006':	/* C-f */
 	case KEYC_NPAGE:
-		if (data->top + sy > ARRAY_LENGTH(&data->list))
+		if (data->top + screen_size_y(s) > ARRAY_LENGTH(&data->list))
 			data->top = ARRAY_LENGTH(&data->list);
 		else
-			data->top += sy;
+			data->top += screen_size_y(s);
+		window_more_redraw_screen(w);
 		break;
 	}
-	if (top != data->top)
-		server_redraw_window(w);
 }
 
 void
-window_more_up_1(struct window *w)
+window_more_write_line(struct window *w, struct screen_write_ctx *ctx, u_int py)
+{
+	struct window_more_mode_data	*data = w->modedata;
+	struct screen			*s = &data->screen;
+	char   				*msg;
+	size_t	 			 size;
+
+	if (py == 0) {
+		screen_write_set_attributes(ctx, 0, status_colour);
+		screen_write_move_cursor(ctx, 0, 0);
+		size = screen_write_put_string_rjust(
+		    ctx, "[%u/%u]", data->top, ARRAY_LENGTH(&data->list));
+	} else
+		size = 0;
+
+	screen_write_set_attributes(ctx, SCREEN_DEFATTR, SCREEN_DEFCOLR);
+	screen_write_move_cursor(ctx, 0, py);
+	if (data->top + py  < ARRAY_LENGTH(&data->list)) {
+		msg = ARRAY_ITEM(&data->list, data->top + py);
+		screen_write_put_string(
+		    ctx, "%.*s", (int) (screen_size_x(s) - size), msg);
+	}
+	while (s->cx < screen_size_x(s) - size)
+		screen_write_put_character(ctx, SCREEN_DEFDATA);
+}
+
+void
+window_more_redraw_screen(struct window *w)
+{
+	struct window_more_mode_data	*data = w->modedata;
+	struct screen			*s = &data->screen;
+	struct screen_write_ctx	 	 ctx;
+	u_int				 i;
+
+	screen_write_start_window(&ctx, w);
+	for (i = 0; i < screen_size_y(s); i++)
+		window_more_write_line(w, &ctx, i);
+	screen_write_stop(&ctx);
+}
+
+void
+window_more_scroll_up(struct window *w)
 {
 	struct window_more_mode_data	*data = w->modedata;
-	struct screen_draw_ctx		 ctx;
+	struct screen_write_ctx		 ctx;
 
 	if (data->top == 0)
 		return;
 	data->top--;
 
-	screen_draw_start_window(&ctx, w, 0, 0);
-	screen_draw_move_cursor(&ctx, 0, 0);
-	screen_draw_insert_lines(&ctx, 1);
-	window_more_draw_position(w, &ctx);
-	window_more_draw_line(w, &ctx, 1);
-	screen_draw_stop(&ctx);
+	screen_write_start_window(&ctx, w);
+	screen_write_move_cursor(&ctx, 0, 0);
+	screen_write_insert_lines(&ctx, 1);
+	window_more_write_line(w, &ctx, 0);
+	window_more_write_line(w, &ctx, 1);
+	screen_write_stop(&ctx);
 }
 
 void
-window_more_down_1(struct window *w)
+window_more_scroll_down(struct window *w)
 {
 	struct window_more_mode_data	*data = w->modedata;
-	struct screen			*s = &w->screen;
-	struct screen_draw_ctx		 ctx;
+	struct screen			*s = &data->screen;
+	struct screen_write_ctx		 ctx;
 
 	if (data->top >= ARRAY_LENGTH(&data->list))
 		return;
 	data->top++;
 
-	screen_draw_start_window(&ctx, w, 0, 0);
-	screen_draw_move_cursor(&ctx, 0, 0);
-	screen_draw_delete_lines(&ctx, 1);
-	window_more_draw_line(w, &ctx, screen_last_y(s));
-	window_more_draw_position(w, &ctx);
-	screen_draw_stop(&ctx);
+	screen_write_start_window(&ctx, w);
+	screen_write_move_cursor(&ctx, 0, 0);
+	screen_write_delete_lines(&ctx, 1);
+	window_more_write_line(w, &ctx, screen_last_y(s));
+	window_more_write_line(w, &ctx, 0);
+	screen_write_stop(&ctx);
 }