don't write the strings to the stream one char at a time, it's *horribly* slow

[wxWidgets.git] / src / x11 / evtloop.cpp

diff --git a/src/x11/evtloop.cpp b/src/x11/evtloop.cpp
index a6bdaeb2f78629b773eb61a342e4daef631ee73f..15e344b6f0ffed8833f2d7abf3be46a8756fa0ee 100644 (file)
--- a/src/x11/evtloop.cpp
+++ b/src/x11/evtloop.cpp
@@ -32,6 +32,9 @@
 #include "wx/x11/private.h"
 #include "X11/Xlib.h"
 
+#include <sys/time.h>
+#include <unistd.h>
+
 // ----------------------------------------------------------------------------
 // wxEventLoopImpl
 // ----------------------------------------------------------------------------
@@ -42,8 +45,8 @@ public:
     // ctor
     wxEventLoopImpl() { SetExitCode(0); m_keepGoing = FALSE; }
 
-    // process an XEvent
-    void ProcessEvent(XEvent* event);
+    // process an XEvent, return TRUE if it was processed
+    bool ProcessEvent(XEvent* event);
 
     // generate an idle message, return TRUE if more idle time requested
     bool SendIdleEvent();
@@ -71,15 +74,17 @@ public:
 // wxEventLoopImpl message processing
 // ----------------------------------------------------------------------------
 
-void wxEventLoopImpl::ProcessEvent(XEvent *event)
+bool wxEventLoopImpl::ProcessEvent(XEvent *event)
 {
     // give us the chance to preprocess the message first
-    if ( !PreProcessEvent(event) )
-    {
-        // if it wasn't done, dispatch it to the corresponding window
-        if (wxTheApp)
-            wxTheApp->ProcessXEvent((WXEvent*) event);
-    }
+    if ( PreProcessEvent(event) )
+        return TRUE;
+    
+    // if it wasn't done, dispatch it to the corresponding window
+    if (wxTheApp)
+        return wxTheApp->ProcessXEvent((WXEvent*) event);
+
+    return FALSE;
 }
 
 bool wxEventLoopImpl::PreProcessEvent(XEvent *event)
@@ -163,10 +168,12 @@ int wxEventLoop::Run()
         // anything else to do
         while ( ! Pending() )
         {
+#if wxUSE_TIMER
             wxTimer::NotifyTimers(); // TODO: is this the correct place for it?
+#endif
             if (!m_impl->SendIdleEvent())
             {
-#if 0 // wxUSE_THREADS
+#if wxUSE_THREADS
                 // leave the main loop to give other threads a chance to
                 // perform their GUI work
                 wxMutexGuiLeave();
@@ -219,8 +226,53 @@ bool wxEventLoop::Dispatch()
 
     // TODO allowing for threads, as per e.g. wxMSW
 
+#if 0
     XNextEvent((Display*) wxGetDisplay(), & event);
-    m_impl->ProcessEvent(& event);
+#endif
+
+    // This now waits until either an X event is received,
+    // or the select times out. So we should now process
+    // wxTimers in a reasonably timely fashion. However it
+    // does also mean that idle processing will happen more
+    // often, so we should probably limit idle processing to
+    // not be repeated more than every N milliseconds.
+    
+    if (XPending((Display*) wxGetDisplay()) == 0)
+    {
+#if wxUSE_NANOX
+        GR_TIMEOUT timeout = 10; // Milliseconds
+        // Wait for next event, or timeout
+        GrGetNextEventTimeout(& event, timeout);
+
+        // Fall through to ProcessEvent.
+        // we'll assume that ProcessEvent will just ignore
+        // the event if there was a timeout and no event.
+            
+#else
+        struct timeval tv;
+        tv.tv_sec=0;
+        tv.tv_usec=10000; // TODO make this configurable
+        int fd = ConnectionNumber((Display*) wxGetDisplay());
+        fd_set readset;
+        FD_ZERO(&readset);
+        FD_SET(fd, &readset);
+        if (select(fd+1, &readset, NULL, NULL, & tv) == 0)
+        {
+            // Timed out, so no event to process
+            return TRUE;
+        }
+        else
+        {
+            // An event was pending, so get it
+            XNextEvent((Display*) wxGetDisplay(), & event);
+        }
+#endif
+    } else
+    {
+       XNextEvent((Display*) wxGetDisplay(), & event);
+    }
+    
+    (void) m_impl->ProcessEvent(& event);
     return TRUE;
 }