Renamed shift_window() to shift_active_window() for more precise description and...

[plomrogue] / windows.c

diff --git a/windows.c b/windows.c
index af6647978a0aa98b2411c6d16e089ef9bcfa99bd..ba6401b2191a28f6a64938d3b955905a9ff1e206 100644 (file)
--- 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;
@@ -184,34 +192,30 @@ void draw_all_windows (struct WinMeta * win_meta) {
     free(all_corners); }
   doupdate(); }
 
-void resize_window (struct WinMeta * win_meta, char change) {
+void resize_active_window (struct WinMeta * win_meta, int height, int width) {
 // Grow or shrink currently active window. Correct its geometry and that of its followers.
-  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)
-      win_meta->active->width--;
-  else if (change == '*')
-    win_meta->active->width++;
-  update_windows(win_meta, win_meta->chain_start); }
+  if (0 != win_meta->active && width > 0 && height > 0 && height < win_meta->height) {
+    win_meta->active->height = height;
+    win_meta->active->width  = 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.
-  if ('n' == dir) {
-    if (win_meta->active->next != 0)
-      win_meta->active = win_meta->active->next;
-    else
-      win_meta->active = win_meta->chain_start; }
-  else {
-    if (win_meta->active->prev != 0)
-      win_meta->active = win_meta->active->prev;
-    else
-      win_meta->active = win_meta->chain_end; } }
+  if (0 != win_meta->active) {
+    if ('n' == dir) {
+      if (win_meta->active->next != 0)
+        win_meta->active = win_meta->active->next;
+      else
+        win_meta->active = win_meta->chain_start; }
+    else {
+      if (win_meta->active->prev != 0)
+        win_meta->active = win_meta->active->prev;
+      else
+        win_meta->active = win_meta->chain_end; } } }
 
-void shift_window (struct WinMeta * win_meta, char dir) {
+void shift_active_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;