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-rw-r--r--extra/abiword/flicker.patch89
1 files changed, 89 insertions, 0 deletions
diff --git a/extra/abiword/flicker.patch b/extra/abiword/flicker.patch
new file mode 100644
index 00000000..aca28398
--- /dev/null
+++ b/extra/abiword/flicker.patch
@@ -0,0 +1,89 @@
+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
+