From 56cdfd3822d2800abdd2f912ab7f76a5764793a7 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Sun, 19 Oct 2008 13:45:07 +0000
Subject: scrollpane widget, updated chatbox

---
 src/client/chat.cc | 61 ++++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 45 insertions(+), 16 deletions(-)

(limited to 'src/client/chat.cc')

diff --git a/src/client/chat.cc b/src/client/chat.cc
index 9d51adc..af50dff 100644
--- a/src/client/chat.cc
+++ b/src/client/chat.cc
@@ -12,7 +12,8 @@
 
 namespace client {
 
-const size_t DEFAULT_MAX_HISTO_LINES = 512;
+const size_t DEFAULT_CHAT_LOG_SIZE = 256;
+const size_t DEFAULT_CHAT_HISTO_SIZE = 512;
 
 Chat::Chat(ui::Widget *parent) : ui::Window(parent)
 {
@@ -21,12 +22,12 @@ Chat::Chat(ui::Widget *parent) : ui::Window(parent)
 	history.push_back("");
 	history_pos = history.rbegin();
 
-	chat_label = new ui::Label(this, "^BSay^F:^B");
-	chat_label->set_alignment(ui::AlignLeft | ui::AlignVCenter);
-	chat_label->set_border(false);
+	chat_scrollpane = new ui::ScrollPane(this, chat_log);
+	chat_scrollpane->set_border(false);
 
 	chat_input = new ui::InputBox(this);
 	chat_input->set_border(false);
+	chat_input->set_prompt("^BSay^F:^B ");
 
 	chat_input->set_focus();
 
@@ -39,6 +40,13 @@ Chat::~Chat()
 	history.clear();
 }
 
+void Chat::event_text(const std::string & text)
+{
+	while (chat_log.size() >= DEFAULT_CHAT_LOG_SIZE) {
+		chat_log.pop_front();
+	}
+	chat_log.push_back(text);
+}
 
 void Chat::show()
 {
@@ -47,6 +55,8 @@ void Chat::show()
 	history_pos = history.rbegin();
 	(*history_pos).clear();
 	chat_input->set_text((*history_pos));	
+
+	chat_scrollpane->set_scroll(0);
 }
 
 void Chat::toggle()
@@ -57,17 +67,11 @@ void Chat::toggle()
 		show();
 }
 
-void Chat::resize()
-{
-	chat_label->set_location(font()->width(), height() / 5.0f);
-	chat_label->set_size(width() - font()->width() * 2, height() / 5.0f);
-
-	chat_input->set_location(font()->width(), height() / 5.0f * 3.0f);
-	chat_input->set_size(width() - font()->width() * 2, height() / 5.0f);
-}
-
 bool Chat::on_keypress(const int key, const unsigned int modifier)
 {
+	// number of lines to scroll
+	const size_t scroll_offset = 3;
+
 	History::reverse_iterator upit;
 
 	switch( key ) {
@@ -81,7 +85,7 @@ bool Chat::on_keypress(const int key, const unsigned int modifier)
 	case SDLK_RETURN:		
 		if (chat_input->text().size()) {
 			// store input into history
-			while (history.size() >= DEFAULT_MAX_HISTO_LINES) {
+			while (history.size() >= DEFAULT_CHAT_HISTO_SIZE) {
 				history.pop_front();
 			}
 
@@ -95,9 +99,9 @@ bool Chat::on_keypress(const int key, const unsigned int modifier)
 			history.push_back("");
 			history_pos = history.rbegin();
 			chat_input->set_text((*history_pos));
+		} else {
+			hide();
 		}
-
-		hide();
 		return true;
 		break;
 
@@ -118,6 +122,16 @@ bool Chat::on_keypress(const int key, const unsigned int modifier)
 		}
 		return true;
 		break;
+
+	case SDLK_PAGEUP:
+		chat_scrollpane->inc_scroll(scroll_offset);
+		return true;
+		break;
+
+	case SDLK_PAGEDOWN:
+		chat_scrollpane->dec_scroll(scroll_offset);
+		return true;
+		break;
 	}
 
 	return false;
@@ -136,4 +150,19 @@ void Chat::event_draw()
 		Widget::event_draw();
 }
 
+void Chat::resize()
+{
+	const float margin = 8.0f;
+	math::Vector2f s(size());
+	s.x -= margin*2;
+	s.y -= margin*2;
+
+	chat_scrollpane->set_location(margin, margin);
+	chat_scrollpane->set_size(s.x, s.y - font()->height() *1.5f);
+	
+	chat_input->set_location(margin, height() - font()->height() - margin);
+	chat_input->set_size(s.x, font()->height());
+}
+
+
 } // namespace client
-- 
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