on-screen notifications

1 files changed, 62 insertions, 0 deletions

diff --git a/src/client/notifications.cc b/src/client/notifications.cc
new file mode 100644
index 0000000..b7c11fd
--- /dev/null
+++ b/src/client/notifications.cc
@@ -0,0 +1,62 @@
+/*
+   client/notifications.cc
+   This file is part of the Osirion project and is distributed under 
+   the terms and conditions of the GNU General Public License version 2 
+*/
+
+#include "client/notifications.h"
+#include "core/application.h"
+
+namespace client
+{
+
+const size_t NOTIFY_LOG_SIZE = 256;
+const unsigned long NOTIFY_TIMEOUT = 7000; //timeout in microseconds
+
+Notifications::Notifications(ui::Widget *parent) : ui::Widget(parent)
+{
+	set_label("notifications");
+	set_border(false);
+
+	notify_scrollpane = new ui::ScrollPane(this, notify_log);
+	notify_scrollpane->set_border(false);
+}
+
+Notifications::~Notifications()
+{
+}
+
+void Notifications::event_text(const std::string & text)
+{
+	while (notify_log.size() >= NOTIFY_LOG_SIZE) {
+		notify_log.pop_front();
+		notify_timestamp.pop_front();
+	}
+
+	notify_log.push_back(text);
+	notify_timestamp.push_back(core::application()->timestamp());
+}
+
+void Notifications::draw()
+{
+	Timestamps::iterator t = notify_timestamp.begin();
+	while ( (t != notify_timestamp.end()) && ( core::application()->timestamp() > (*t) + NOTIFY_TIMEOUT )) {
+
+		notify_log.pop_front();
+		notify_timestamp.pop_front();
+
+		t = notify_timestamp.begin();
+	}
+
+	const float margin = 8.0f;
+	math::Vector2f s(size());
+	s.x -= margin*2;
+	s.y -= margin*2;
+
+	notify_scrollpane->set_location(margin, margin);
+	notify_scrollpane->set_size(s.x, s.y );
+}
+
+
+}
+