From a6f9773c358dd7d091ff64cbda504ab8d8066dd3 Mon Sep 17 00:00:00 2001
From: Stijn Buys <ingar@osirion.org>
Date: Wed, 22 Sep 2010 21:32:34 +0000
Subject: full trading support for networked games

---
 src/client/inventorylistview.cc | 81 +++++++++++++++++++++++++++++------------
 1 file changed, 57 insertions(+), 24 deletions(-)

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

diff --git a/src/client/inventorylistview.cc b/src/client/inventorylistview.cc
index d87ed2b..e2b613b 100644
--- a/src/client/inventorylistview.cc
+++ b/src/client/inventorylistview.cc
@@ -4,14 +4,20 @@
    the terms and conditions of the GNU General Public License version 2
 */
 
+#include "core/application.h"
 #include "client/inventorylistview.h"
 #include "ui/listitem.h"
+#include "ui/paint.h"
 
 namespace client {
 
 InventoryListView::InventoryListView(ui::Widget *parent) : ui::ListView (parent)
 {
+	listview_inventory = 0;
+	listview_infotype = 0;
 	listview_timestamp = 0;
+	listview_infotimestamp = 0;
+	
 	set_inventory(0, 0);
 }
 
@@ -22,55 +28,82 @@ void InventoryListView::set_inventory(core::Inventory *inventory, core::InfoType
 {
 	remove_children();
 	
+	deselect();
+	
+	listview_timestamp = 0;
+	listview_infotimestamp = 0;
 	listview_inventory = inventory;
 	listview_infotype = infotype;
-	
-	const core::Item *selecteditem = (selected() ? selected()->item() : 0);
-	
-	if (!inventory || !infotype) {
+
+	if (!listview_inventory || !listview_infotype) {
 		return;
 	}
 	
-	// TODO scan the inventories and request updated infos
-	// update when necessary
+	const core::Item *selecteditem = (selected() ? selected()->item() : 0);
+	listview_timestamp = inventory->timestamp();
 	
 	for (core::Inventory::Items::const_iterator it = inventory->items().begin(); it != inventory->items().end(); it++) {
 		core::Item *item = (*it);
 	
-		if (item->info() && (item->info()->type() == infotype) && (item->amount() != 0) ) {
-			ui::ListItem *listitem = 0;
+		if (item->info()) {
 			
-			std::ostringstream str;
-			str << item->info()->name().c_str();
+			// this makes sure inventory info gets requested from the server
+			core::game()->request_info(item->info()->id());
 			
-			if (item->amount() > 0) {
-				str << " (" << item->amount() << ")";
+			if (item->info()->timestamp() >	listview_infotimestamp) {
+				listview_infotimestamp = item->info()->timestamp();
 			}
-			listitem = new ui::ListItem(this, str.str().c_str());
-			listitem->set_height(listitem->font()->height() * 2.0f);
-			listitem->set_item(item);
-			listitem->set_info(item->info());
-			// preserve previous selection during update
-			if (item == selecteditem) {
-				ui::ListView::select(listitem);
+			
+			if ((item->info()->type() == infotype) && (item->amount() != 0))  {
+				ui::ListItem *listitem = 0;
+				
+				std::ostringstream str;
+				str << item->info()->name().c_str();
+				
+				if (item->amount() > 0) {
+					str << " (" << item->amount() << ")";
+				}
+				listitem = new ui::ListItem(this, str.str().c_str());
+				listitem->set_height(listitem->font()->height() * 2.0f);
+				listitem->set_item(item);
+				listitem->set_info(item->info());
+				// preserve previous selection during update
+				if (item == selecteditem) {
+					ui::ListView::select(listitem);
+				}
 			}
 		}
 	}
 	
-	listview_timestamp = inventory->timestamp();
-	
 	event_resize();
 	
 	emit(EventListViewChanged);
 }
 
+bool InventoryListView::verify_inventory()
+{
+	for (core::Inventory::Items::const_iterator it = listview_inventory->items().begin(); it != listview_inventory->items().end(); it++) {
+		core::Item *item = (*it);
+		if (item->info() && (item->info()->timestamp() > listview_infotimestamp)) {
+			return false;
+		}
+	}
+	return true;
+}
+
 void InventoryListView::draw()
 {
-	if (listview_inventory && (listview_timestamp != listview_inventory->timestamp())) {
-		set_inventory(listview_inventory, listview_infotype);
+	if (listview_inventory && listview_infotype) {
+		// inventory was updated
+		if (listview_timestamp != listview_inventory->timestamp()) {
+			set_inventory(listview_inventory, listview_infotype);
+		// inventory info was updated
+		} else if (!verify_inventory()) {
+			set_inventory(listview_inventory, listview_infotype);
+		}
 	}
 	
 	ListView::draw();
 }
 
-} // namespace client
\ No newline at end of file
+} // namespace client
-- 
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