pgup pgdn scrolling for the ncurses server console

2 files changed, 17 insertions, 5 deletions

diff --git a/src/server/console.cc b/src/server/console.cc
index 0fe874e..3f32337 100644
--- a/src/server/console.cc
+++ b/src/server/console.cc
@@ -47,7 +47,7 @@ void Console::init()
         keypad(stdwin, TRUE);           // enable special keys
         nodelay(stdwin, TRUE);          // non-blocking input
         curs_set(1);                    // enable cursor
-	
+
 	if (has_colors() == TRUE) {
 		start_color();
 		// this is ncurses-specific
@@ -73,7 +73,7 @@ void Console::init()
         server_console.history.push_back("");
         server_console.history_pos = server_console.history.rbegin();
         server_console.input_pos = 0;
-
+	server_console.console_scroll = 0;
 	server_console.draw();
 #endif // HAVE_CURSES
 }
@@ -225,9 +225,8 @@ void Console::draw_text()
 
 	std::deque<std::string>	lines;
 
-	int console_scroll = 0;
 	int height = stdwin->_maxy - 1;
-	int  width = stdwin->_maxx - 1;
+	int width = stdwin->_maxx - 1;
 	int bottom = (int) consoleinterface_text.size() - console_scroll;
 	int current_line = 0;
 
@@ -372,6 +371,7 @@ void Console::draw()
 
 void Console::frame(float seconds)
 {
+	const size_t scroll_offset = 3;
 	std::deque<std::string>::reverse_iterator upit;
 
 	flush();
@@ -449,7 +449,18 @@ void Console::frame(float seconds)
 			}
 			break;
         	} else if (key == KEY_PPAGE) {
+                	console_scroll += scroll_offset;
+                	if (console_scroll > consoleinterface_text.size()) 
+				console_scroll = consoleinterface_text.size();
+			console_updated = true;
+               		break;
         	} else if (key == KEY_NPAGE) {
+	                if (console_scroll > scroll_offset) 
+				console_scroll -= scroll_offset;
+                	else 
+				console_scroll = 0;
+			console_updated = true;
+                	break;
         	} else if ((key >= 32) && (key < 127) && ((*history_pos).size() < MAXCMDSIZE)) {
 			if (input_pos == (*history_pos).size()) {
 				(*history_pos) += (char)key;
diff --git a/src/server/console.h b/src/server/console.h
index 9cfe604..bf77ecd 100644
--- a/src/server/console.h
+++ b/src/server/console.h
@@ -25,6 +25,7 @@ public:
 	virtual void resize();
 	/// run one console frame
 	void frame(float seconds);
+
 protected:
 	/// draw the ncurses console
 	void draw();
@@ -50,7 +51,7 @@ private:
         std::deque<std::string>::reverse_iterator history_pos;
 
         size_t input_pos;
-	
+	size_t console_scroll;	
 #endif
 };