Author: Carlos Lopez <genet...@gmail.com>
Date: Thu Nov 29 19:14:48 2012 +0100
CairoSurface: when the CairoSurface receives a pointer to a cairo_surface_t and
it is null then don't throw a message error. Instead set it to the current
cairo_surface_t.
In any case when the new cairo_surface_t pointer is received the previous one
is unmapped if already is.
---
synfig-core/src/synfig/surface.cpp | 10 +++++++---
synfig-core/src/synfig/surface.h | 3 +++
2 files changed, 10 insertions(+), 3 deletions(-)
diff --git a/synfig-core/src/synfig/surface.cpp
b/synfig-core/src/synfig/surface.cpp
index 722dfa4..b24fc96 100644
--- a/synfig-core/src/synfig/surface.cpp
+++ b/synfig-core/src/synfig/surface.cpp
@@ -317,7 +317,10 @@ CairoSurface::set_cairo_surface(cairo_surface_t *cs)
{
if(cs==NULL)
{
- synfig::error("CairoSruface received a NULL cairo_surface_t");
+ if(is_mapped())
+ unmap_cairo_image();
+ cairo_surface_destroy(cs_);
+ cs_=NULL;
return;
}
if(cairo_surface_status(cs))
@@ -327,8 +330,9 @@ CairoSurface::set_cairo_surface(cairo_surface_t *cs)
}
else
{
- if(cs_!=NULL)
- cairo_surface_destroy(cs_);
+ if(is_mapped())
+ unmap_cairo_image();
+ cairo_surface_destroy(cs_);
cs_=cairo_surface_reference(cs);
}
}
diff --git a/synfig-core/src/synfig/surface.h b/synfig-core/src/synfig/surface.h
index 4650a22..70b38a0 100644
--- a/synfig-core/src/synfig/surface.h
+++ b/synfig-core/src/synfig/surface.h
@@ -163,6 +163,9 @@ public:
// by this surface class.
// When the CairoSurface instance is destructed the reference counter
of the
// cairo_surface_t shoud be decreased.
+ // It is also possible to detach the cairo surface passing NULL as
argument.
+ // If the cairo surface is mapped at the time of call this function,
then
+ // it is unmaped first.
void set_cairo_surface(cairo_surface_t *cs);
// Returns an increased reference pointer of the surface. The receiver
is responsible
// of destroy the surface once referenced.
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