X-Git-Url: https://plomlompom.com/repos/berlin_corona.txt?a=blobdiff_plain;f=windows.c;h=659318deeea90a4343f95437eec3f9cc92804c4c;hb=c4dd7e96a38e28dbfd50104cfc8ab35eff5fbf77;hp=77a35b28556e267a837e59d08c53b4f869db8d08;hpb=969ba2899d6abd9d06a187098a5cd015d1aac1e0;p=plomrogue

diff --git a/windows.c b/windows.c
index 77a35b2..659318d 100644
--- a/windows.c
+++ b/windows.c
@@ -13,8 +13,16 @@ struct WinMeta init_win_meta (WINDOW * screen) {
   win_meta.chain_end = 0;
   win_meta.pad_offset = 0;
   win_meta.pad = newpad(win_meta.height, 1);
+  win_meta.active = 0;
   return win_meta; }
 
+void scroll_pad (struct WinMeta * win_meta, char dir) {
+// Scroll pad left (if possible) or right.
+  if      ('+' == dir)
+    win_meta->pad_offset++;
+  else if ('-' == dir && win_meta->pad_offset > 0)
+    win_meta->pad_offset--; }
+
 struct Win init_window (struct WinMeta * win_meta, char * title) {
 // Create and populate Win struct with sane default values.
   struct Win win;
@@ -186,15 +194,16 @@ void draw_all_windows (struct WinMeta * win_meta) {
 
 void resize_window (struct WinMeta * win_meta, char change) {
 // Grow or shrink currently active window. Correct its geometry and that of its followers.
-  if      (change == '-' && win_meta->active->height > 1)
+  if (0 != win_meta->active) {
+    if      (change == '-' && win_meta->active->height > 1)
       win_meta->active->height--;
-  else if (change == '+' && win_meta->active->height < win_meta->height - 1)
-    win_meta->active->height++;
-  else if (change == '_' && win_meta->active->width > 1)
+    else if (change == '+' && win_meta->active->height < win_meta->height - 1)
+      win_meta->active->height++;
+    else if (change == '_' && win_meta->active->width > 1)
       win_meta->active->width--;
-  else if (change == '*')
-    win_meta->active->width++;
-  update_windows(win_meta, win_meta->chain_start); }
+    else if (change == '*')
+      win_meta->active->width++;
+    update_windows(win_meta, win_meta->chain_start); } }
 
 void cycle_active_window (struct WinMeta * win_meta, char dir) {
 // Cycle active window selection forwards (dir = 'n') or backwards.
@@ -212,7 +221,7 @@ void cycle_active_window (struct WinMeta * win_meta, char dir) {
 
 void shift_window (struct WinMeta * win_meta, char dir) {
 // Move active window forward/backward in window chain. If jumping beyond start/end, move to other chain end.
-  if (win_meta->chain_start != win_meta->chain_end && (dir == 'f' || dir == 'b')) {
+  if (0 != win_meta->active && win_meta->chain_start != win_meta->chain_end && (dir == 'f' || dir == 'b')) {
     int i, i_max;
     struct Win * win_shift = win_meta->active;
     char wrap = 0;