From: Christian Heller <c.heller@plomlompom.de>
Date: Thu, 6 Jun 2013 10:56:37 +0000 (+0200)
Subject: Made vertical scroll hint more informative.
X-Git-Tag: tce~1243
X-Git-Url: https://plomlompom.com/repos/%7B%7B%20web_path%20%7D%7D/decks/%7B%7Bprefix%7D%7D/static/blog?a=commitdiff_plain;h=154ade9490933893ea32781e9571a6817fec7a1c;p=plomrogue

Made vertical scroll hint more informative.
---

diff --git a/draw_wins.c b/draw_wins.c
index 8603d96..a7da818 100644
--- a/draw_wins.c
+++ b/draw_wins.c
@@ -99,7 +99,7 @@ void draw_info_win (struct Win * win) {
   snprintf(text, 100, "Turn: %d", count);
   draw_with_linebreaks(win, text, 0); }
 
-void draw_scroll_hint (struct Win * win, uint16_t y, uint32_t more_lines, char dir) {
+void draw_horizontal_scroll_hint (struct Win * win, uint16_t y, uint32_t more_lines, char dir) {
 // Draw scroll hint line in win at row y, announce more_lines more lines in direction dir.
   uint16_t x, offset;
   char phrase[] = "more lines";
@@ -130,10 +130,10 @@ void draw_keys_win (struct Win * win) {
   attr_t attri;
   for (y = 0; y <= world->keyswindata->max && y < win->height; y++) {
     if (0 == y && offset > 0) {
-      draw_scroll_hint (win, y, offset + 1, '^');
+      draw_horizontal_scroll_hint (win, y, offset + 1, '^');
       continue; }
     else if (win->height == y + 1 && 0 < world->keyswindata->max - (win->height + offset - 1)) {
-      draw_scroll_hint (win, y, world->keyswindata->max - (offset + win->height) + 2, 'v');
+      draw_horizontal_scroll_hint (win, y, world->keyswindata->max - (offset + win->height) + 2, 'v');
       continue; }
     attri = 0;
     if (y == world->keyswindata->select - offset) {
diff --git a/draw_wins.h b/draw_wins.h
index 4ed3c24..20b5676 100644
--- a/draw_wins.h
+++ b/draw_wins.h
@@ -3,5 +3,5 @@ void draw_text_from_bottom (struct Win *, char *);
 void draw_log_win (struct Win *);
 void draw_map_win (struct Win *);
 void draw_info_win (struct Win *);
-void draw_scroll_hint (struct Win *, uint16_t, uint32_t, char);
+void draw_horizontal_scroll_hint (struct Win *, uint16_t, uint32_t, char);
 void draw_keys_win (struct Win *);
diff --git a/windows.c b/windows.c
index 461a98e..47c1a44 100644
--- a/windows.c
+++ b/windows.c
@@ -171,6 +171,23 @@ void draw_windows (struct Win * win) {
   if (0 != win->next) {
     draw_windows (win->next); } }
 
+void draw_vertical_scroll_hint (struct WinMeta * win_meta, uint16_t x, uint32_t more_cols, char dir) {
+// Draw scroll hint line in win at col x of pad display, announce more_cols more columns in direction dir.
+  uint16_t y, offset;
+  offset = 0;
+  char phrase[] = "more columns";
+  char * scrolldesc = malloc((3 * sizeof(char)) + strlen(phrase) + 10); // 10 = max chars for uint32_t string
+  sprintf(scrolldesc, " %d %s ", more_cols, phrase);
+  offset = 1;
+  if (win_meta->height > (strlen(scrolldesc) + 1))
+    offset = (win_meta->height - strlen(scrolldesc)) / 2;
+  for (y = 0; y < win_meta->height; y++)
+    if (y >= offset && y < strlen(scrolldesc) + offset)
+      mvwaddch(win_meta->pad, y, x, scrolldesc[y - offset] | A_REVERSE);
+    else
+      mvwaddch(win_meta->pad, y, x, dir | A_REVERSE);
+  free(scrolldesc); }
+
 void draw_all_windows (struct WinMeta * win_meta) {
 // Draw pad with all windows and their borders, plus scrolling hints.
   erase();
@@ -194,11 +211,11 @@ void draw_all_windows (struct WinMeta * win_meta) {
     free(all_corners);
     uint16_t y;
     if (win_meta->pad_offset > 0)
-      for (y = 0; y < win_meta->height; y++)
-        mvwaddch(win_meta->pad, y, win_meta->pad_offset, '<' | A_REVERSE);
+        draw_vertical_scroll_hint(win_meta, win_meta->pad_offset, win_meta->pad_offset + 1, '<');
     if (win_meta->pad_offset + win_meta->width < getmaxx(win_meta->pad) - 1)
       for (y = 0; y < win_meta->height; y++)
-        mvwaddch(win_meta->pad, y, win_meta->pad_offset + win_meta->width - 1, '>' | A_REVERSE);
+        draw_vertical_scroll_hint(win_meta, win_meta->pad_offset + win_meta->width - 1,
+                                  getmaxx(win_meta->pad) - (win_meta->pad_offset + win_meta->width + 1), '>');
     pnoutrefresh(win_meta->pad, 0, win_meta->pad_offset, 0, 0, win_meta->height, win_meta->width - 1); }
   doupdate(); }
 
diff --git a/windows.h b/windows.h
index 904cc9f..522f26f 100644
--- a/windows.h
+++ b/windows.h
@@ -39,6 +39,7 @@ void destroy_window (struct Win *);
 void draw_windows (struct Win *);
 void draw_windows_borders (struct Win *, struct Win *, struct Corners *, uint16_t);
 void draw_window_borders (struct Win *, char);
+void draw_vertical_scroll_hint (struct WinMeta *, uint16_t, uint32_t, char);
 void draw_all_windows (struct WinMeta *);
 void resize_active_window (struct WinMeta *, uint16_t, uint16_t);
 void cycle_active_window (struct WinMeta *, char);