Client: added cvar cl_chat_enabled, which supresses chat notifications.

Spraylogos: Fix blendFunc
VGUI: Add method Visible() for CUIWindow

src/client/chat.qc

@@ -14,6 +14,8 @@
  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  */
 
+var bool autocvar_cl_chat_enabled = true;
+
 #define CHAT_LINES 5
 #define CHAT_TIME 5
 
@@ -56,6 +58,9 @@ Chat_Draw(void)
 		Font_DrawText(temppos + [0,16], tempstr, g_fntChat);
 	}
 
+	if (autocvar_cl_chat_enabled == false)
+		return;
+
 	g_chatpos[0] = g_hudmins[0] + 16;
 	g_chatpos[1] = g_hudmins[1] + g_hudres[1] - 128;
 
@@ -100,6 +105,11 @@ Chat_Parse(string msg)
 	}
 
 	g_chattime = time + CHAT_TIME;
+
+	/* we need to be silent */
+	if (autocvar_cl_chat_enabled == false)
+		return;
+
 	localsound("misc/talk.wav");
 
 	/* log to client console */

src/gs-entbase/shared/spraylogo.qc

@@ -105,7 +105,7 @@ const string g_spray_mat = \
 		"polygonOffset\n" \
 		"{\n" \
 			"map $rt:%s\n" \
-			"blendfunc GL_DST_COLOR GL_ZERO\n" \
+			"blendfunc GL_DST_COLOR GL_ONE\n" \
 			"rgbGen vertex\n" \
 		"}\n" \
 	"}";

src/vgui/ui_window.qc

@@ -59,7 +59,8 @@ class CUIWindow:CUIWidget
 	
 	virtual void(void(void) vFunc) CallOnResize;
 	virtual void(void(void) vFunc) CallOnMove;
-	
+
+	virtual bool(void) Visible;
 	virtual void(void) Draw;
 	virtual void(void) Hide;
 	virtual void(float, float, float, float) Input;
@@ -87,6 +88,12 @@ void CUIWindow::CUIWindow(void)
 	SetSize([320,240]);
 }
 
+bool
+CUIWindow::Visible(void)
+{
+	return (m_iFlags & WINDOW_VISIBLE) ? true : false;
+}
+
 void CUIWindow::SetTitle (string strName)
 {
 	m_strTitle = strName;