From 406290856d1ff76b789f919c0fd98ed1ef40ae8e Mon Sep 17 00:00:00 2001 From: Laszlo Agocs Date: Fri, 7 Mar 2014 12:56:13 +0100 Subject: contextinfo: Make it more responsive and improve error handling MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Change-Id: If05cd906edc8b7f1fd4744d8d0a392aeec46a454 Reviewed-by: Jørgen Lind --- examples/opengl/contextinfo/renderwindow.cpp | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'examples') diff --git a/examples/opengl/contextinfo/renderwindow.cpp b/examples/opengl/contextinfo/renderwindow.cpp index 85fb19bd1a..af51de1d67 100644 --- a/examples/opengl/contextinfo/renderwindow.cpp +++ b/examples/opengl/contextinfo/renderwindow.cpp @@ -174,7 +174,7 @@ void RenderWindow::setupVertexAttribs() void RenderWindow::render() { if (!m_context->makeCurrent(this)) { - qWarning("makeCurrent() failed"); + emit error(tr("makeCurrent() failed")); return; } @@ -216,5 +216,10 @@ void RenderWindow::render() m_context->swapBuffers(this); m_angle += 1.0f; - QTimer::singleShot(0, this, SLOT(render())); + + // Instead of 0 wait a few more milliseconds before rendering again. This is + // only here to make the UI widgets more responsive on slower machines. We + // can afford it since our rendering is so lightweight. + const int interval = 5; + QTimer::singleShot(interval, this, SLOT(render())); } -- cgit v1.2.3