Rocco Rutte:

[apps/madmutt.git] / menu.c

diff --git a/menu.c b/menu.c
index c24a248..7370b12 100644 (file)
--- a/menu.c
+++ b/menu.c
@@ -12,6 +12,7 @@
 #endif
 
 #include "mutt.h"
+#include "enter.h"
 #include "mutt_curses.h"
 #include "mutt_menu.h"
 #include "mbyte.h"
@@ -372,23 +373,18 @@ void menu_check_recenter (MUTTMENU * menu)
       menu->top = 0;
       set_option (OPTNEEDREDRAW);
     }
-  }
-  else if (menu->current >= menu->top + menu->pagelen - c) {    /* indicator below bottom threshold */
-    if (option (OPTMENUSCROLL) || (menu->pagelen <= 0))
-      menu->top = menu->current - menu->pagelen + c + 1;
-    else
-      menu->top +=
-        (menu->pagelen -
-         c) * ((menu->current - menu->top) / (menu->pagelen - c)) - c;
-  }
-  else if (menu->current < menu->top + c) {     /* indicator above top threshold */
-    if (option (OPTMENUSCROLL) || (menu->pagelen <= 0))
-      menu->top = menu->current - c;
-    else
-      menu->top -=
-        (menu->pagelen -
-         c) * ((menu->top + menu->pagelen - 1 -
-                menu->current) / (menu->pagelen - c)) - c;
+  } else {
+    if (option (OPTMENUSCROLL) || (menu->pagelen <= 0) || (c <= MenuContext)) {
+      if (menu->current < menu->top + c)
+        menu->top = menu->current - c;
+      else if (menu->current >= menu->top + menu->pagelen - c)
+        menu->top = menu->current - menu->pagelen + c + 1;
+    } else {
+      if (menu->current < menu->top + c)
+        menu->top -= (menu->pagelen - c) * ((menu->top + menu->pagelen - 1 - menu->current) / (menu->pagelen - c)) - c;
+      else if ((menu->current >= menu->top + menu->pagelen - c))
+        menu->top += (menu->pagelen - c) * ((menu->current - menu->top) / (menu->pagelen - c)) - c;
+    }
   }
 
   if (!option (OPTMENUMOVEOFF)) /* make entries stick to bottom */
@@ -456,55 +452,75 @@ void menu_prev_line (MUTTMENU * menu)
     mutt_error _("You cannot scroll up farther.");
 }
 
-void menu_next_page (MUTTMENU * menu)
-{
+/* 
+ * pageup:   jumplen == -pagelen
+ * pagedown: jumplen == pagelen
+ * halfup:   jumplen == -pagelen/2
+ * halfdown: jumplen == pagelen/2
+ */
+#define DIRECTION ((neg * 2) + 1)
+void menu_length_jump (MUTTMENU *menu, int jumplen) {
+  int tmp, neg = (jumplen >= 0) ? 0 : -1;
+  int c = MIN (MenuContext, menu->pagelen / 2);
+
   if (menu->max) {
-    if (menu->top + menu->pagelen < menu->max) {
-      menu->top += menu->pagelen;
-      if (menu->current < menu->top)
-        menu->current = menu->top;
+    /* possible to scroll? */
+    if (DIRECTION * menu->top < 
+        (tmp = (neg ? 0 : (menu->max /*-1*/) - (menu->pagelen /*-1*/)))) {
+      menu->top += jumplen;
+
+      /* jumped too long? */
+      if ((neg || !option (OPTMENUMOVEOFF)) && DIRECTION * menu->top > tmp)
+        menu->top = tmp;
+
+      /* need to move the cursor? */
+      if ((DIRECTION * 
+           (tmp = (menu->current - (menu->top + 
+                                    (neg ? (menu->pagelen - 1) - c : c))))) < 0)
+        menu->current -= tmp;
+
       menu->redraw = REDRAW_INDEX;
     }
-    else if (menu->current != menu->max - 1 && !menu->dialog) {
-      menu->current = menu->max - 1;
+    else if (menu->current != (neg ? 0 : menu->max - 1) && !menu->dialog) {
+      menu->current += jumplen;
       menu->redraw = REDRAW_MOTION;
     }
     else
-      mutt_error _("You are on the last page.");
+      mutt_error (neg ? _("You are on the first page.")
+                  : _("You are on the last page."));
+
+    menu->current = MIN (menu->current, menu->max - 1);
+    menu->current = MAX (menu->current, 0);
   }
   else
     mutt_error _("No entries.");
 }
+#undef DIRECTION
 
-void menu_prev_page (MUTTMENU * menu)
-{
-  int c = MIN (MenuContext, menu->pagelen / 2);
+void menu_next_page (MUTTMENU *menu) {
+  menu_length_jump (menu, MAX (menu->pagelen /* - MenuOverlap */, 0));
+}
 
-  if (menu->top > c) {
-    if ((menu->top -= menu->pagelen) < 0)
-      menu->top = 0;
-    if (menu->current >= menu->top + menu->pagelen)
-      menu->current = menu->top + menu->pagelen - 1;
-    menu->redraw = REDRAW_INDEX;
-  }
-  else if (menu->current && !menu->dialog) {
-    menu->current = 0;
-    menu->redraw = REDRAW_MOTION;
-  }
-  else
-    mutt_error _("You are on the first page.");
+void menu_prev_page (MUTTMENU *menu) {
+  menu_length_jump (menu, 0 - MAX (menu->pagelen /* - MenuOverlap */, 0));
 }
 
-void menu_top_page (MUTTMENU * menu)
-{
+void menu_half_down (MUTTMENU *menu) {
+  menu_length_jump (menu, menu->pagelen / 2);
+}
+
+void menu_half_up (MUTTMENU *menu) {
+  menu_length_jump (menu, 0 - menu->pagelen / 2);
+}
+
+void menu_top_page (MUTTMENU *menu) {
   if (menu->current != menu->top) {
     menu->current = menu->top;
     menu->redraw = REDRAW_MOTION;
   }
 }
 
-void menu_bottom_page (MUTTMENU * menu)
-{
+void menu_bottom_page (MUTTMENU *menu) {
   if (menu->max) {
     menu->current = menu->top + menu->pagelen - 1;
     if (menu->current > menu->max - 1)
@@ -515,8 +531,7 @@ void menu_bottom_page (MUTTMENU * menu)
     mutt_error _("No entries.");
 }
 
-void menu_middle_page (MUTTMENU * menu)
-{
+void menu_middle_page (MUTTMENU *menu) {
   int i;
 
   if (menu->max) {
@@ -530,8 +545,7 @@ void menu_middle_page (MUTTMENU * menu)
     mutt_error _("No entries.");
 }
 
-void menu_first_entry (MUTTMENU * menu)
-{
+void menu_first_entry (MUTTMENU *menu) {
   if (menu->max) {
     menu->current = 0;
     menu->redraw = REDRAW_MOTION;
@@ -540,8 +554,7 @@ void menu_first_entry (MUTTMENU * menu)
     mutt_error _("No entries.");
 }
 
-void menu_last_entry (MUTTMENU * menu)
-{
+void menu_last_entry (MUTTMENU *menu) {
   if (menu->max) {
     menu->current = menu->max - 1;
     menu->redraw = REDRAW_MOTION;
@@ -550,43 +563,6 @@ void menu_last_entry (MUTTMENU * menu)
     mutt_error _("No entries.");
 }
 
-void menu_half_up (MUTTMENU * menu)
-{
-  if (menu->top > 0) {
-    if ((menu->top -= menu->pagelen / 2) < 0)
-      menu->top = 0;
-    if (menu->current >= menu->top + menu->pagelen)
-      menu->current = menu->top + menu->pagelen - 1;
-    menu->redraw = REDRAW_INDEX;
-  }
-  else if (menu->current && !menu->dialog) {
-    menu->current = 0;
-    menu->redraw = REDRAW_MOTION;
-  }
-  else
-    mutt_error _("First entry is shown.");
-}
-
-void menu_half_down (MUTTMENU * menu)
-{
-  if (menu->max) {
-    if (menu->top + menu->pagelen < menu->max) {
-      menu->top += menu->pagelen / 2;
-      if (menu->current < menu->top)
-        menu->current = menu->top;
-      menu->redraw = REDRAW_INDEX;
-    }
-    else if (menu->current != menu->max - 1 && !menu->dialog) {
-      menu->current = menu->max - 1;
-      menu->redraw = REDRAW_INDEX;
-    }
-    else
-      mutt_error _("Last entry is shown.");
-  }
-  else
-    mutt_error _("No entries.");
-}
-
 void menu_current_top (MUTTMENU * menu)
 {
   if (menu->max) {
@@ -1015,6 +991,10 @@ int mutt_menuLoop (MUTTMENU * menu)
       mutt_what_key ();
       break;
 
+    case OP_REBUILD_CACHE:
+      mx_rebuild_cache ();
+      break;
+
     case OP_REDRAW:
       clearok (stdscr, TRUE);
       menu->redraw = REDRAW_FULL;