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From 46388f407c893123d9b3824a7570b050fc3b049b Mon Sep 17 00:00:00 2001
From: James Cameron <quozl@laptop.org>
Date: Thu, 17 Aug 2017 15:05:39 +1000
Subject: [PATCH] Fix flickering
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
- in GR_Caret::s_blink_timeout, avoid repeated calls by stopping the
timer, it will be restarted when needed,
- in GR_Caret::s_enable, avoid extra unnecessary _blink calls when blink
is enabled, as they serve no purpose,
- in XAP_UnixFrameImpl::_fe::expose, use the Cairo clip rectangle
instead of the expose event area, thanks to Hubert Figuière in
865c1dda7e13deff04573ffc42028b71fee07f9c,
- in XAP_UnixFrameImpl::_fe::expose, do not return FALSE, as other
handlers will need to handle the draw event,
- in GR_UnixCairoGraphics::flush, fix excessive draw events;
gtk_widget_queue_draw only marks the widget as needing redrawing,
which causes a draw event for each call to flush, therefore every
caret blink, so use gdk_flush instead,
Fixes AbiSource #13791.
Fixes Debian #851052.
Fixes Fedora #1287835.
Fixes Ubuntu LP: #1574278.
Fixes Sugar Labs #4915.
Signed-off-by: James Cameron <quozl@laptop.org>
---
src/af/gr/gtk/gr_UnixCairoGraphics.cpp | 4 +---
src/af/gr/xp/gr_Caret.cpp | 13 ++++---------
src/af/xap/gtk/xap_UnixFrameImpl.cpp | 27 ++++++++++++++++++---------
src/af/xap/gtk/xap_UnixFrameImpl.h | 2 +-
4 files changed, 24 insertions(+), 22 deletions(-)
diff --git a/src/af/gr/gtk/gr_UnixCairoGraphics.cpp b/src/af/gr/gtk/gr_UnixCairoGraphics.cpp
index 509bd37..7c3c06f 100644
--- a/src/af/gr/gtk/gr_UnixCairoGraphics.cpp
+++ b/src/af/gr/gtk/gr_UnixCairoGraphics.cpp
@@ -577,9 +577,7 @@ void GR_UnixCairoGraphics::_endPaint()
void GR_UnixCairoGraphics::flush(void)
{
- if (m_Widget) {
- gtk_widget_queue_draw(m_Widget);
- }
+ gdk_flush();
}
bool GR_UnixCairoGraphics::queryProperties(GR_Graphics::Properties gp) const
diff --git a/src/af/gr/xp/gr_Caret.cpp b/src/af/gr/xp/gr_Caret.cpp
index 5d5d116..a8aa451 100644
--- a/src/af/gr/xp/gr_Caret.cpp
+++ b/src/af/gr/xp/gr_Caret.cpp
@@ -155,22 +155,17 @@ void GR_Caret::s_enable(UT_Worker * _w)
{
GR_Caret * c = static_cast<GR_Caret *>(_w->getInstanceData());
+ c->m_enabler->stop();
c->m_worker->stop();
- c->_blink(true);
- if (!c->m_bCursorIsOn)
- c->_blink(true); // blink again
- else
- {
- c->_blink(true); // ?? - MARCM
- c->_blink(true);
- }
c->m_worker->start();
- c->m_enabler->stop();
+ c->_blink(true);
}
void GR_Caret::s_blink_timeout(UT_Worker * _w)
{
GR_Caret * c = static_cast<GR_Caret *>(_w->getInstanceData());
+
+ c->m_blinkTimeout->stop();
if (c->isEnabled())
c->disable();
}
--
2.11.0
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