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added DEBUG code to measure redraw time if control key is held down during an update.

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This commit is contained in:
beard%netscape.com 1999-05-31 01:38:31 +00:00
parent 649fc7265e
commit 18a5529ed4
1 changed files with 30 additions and 0 deletions
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30
widget/src/mac/nsWindow.cpp
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@ -32,7 +32,9 @@
#include "nsCOMPtr.h"
#include "nsToolkit.h"
#include "nsIEnumerator.h"
#include <Appearance.h>
#include <Timer.h>
#include "nsplugindefs.h"
#include "nsMacEventHandler.h"
@ -823,6 +825,19 @@ NS_IMETHODIMP nsWindow::Update()
return NS_OK;
}
static Boolean control_key_down()
{
EventRecord event;
::OSEventAvail(0, &event);
return (event.modifiers & controlKey) != 0;
}
static long long microseconds()
{
unsigned long long micros;
Microseconds((UnsignedWide*)&micros);
return micros;
}
//-------------------------------------------------------------------------
// HandleUpdateEvent
@ -874,9 +889,24 @@ nsresult nsWindow::HandleUpdateEvent()
::OffsetRect(&macRect, -bounds.x, -bounds.y);
rect.SetRect(macRect.left, macRect.top, macRect.right - macRect.left, macRect.bottom - macRect.top);
#if DEBUG
// measure the time it takes to refresh the window, if the control key is down.
unsigned long long start, finish;
Boolean measure_duration = control_key_down();
if (measure_duration)
start = microseconds();
#endif
// update the widget
UpdateWidget(rect, renderingContext);
#if DEBUG
if (measure_duration) {
finish = microseconds();
printf("update took %g microseconds.\n", double(finish - start));
}
#endif
NS_RELEASE(renderingContext);
}
}