diff options
| -rw-r--r-- | src/x11_cairo.c | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/src/x11_cairo.c b/src/x11_cairo.c index 74de735..be9ae09 100644 --- a/src/x11_cairo.c +++ b/src/x11_cairo.c @@ -11,6 +11,7 @@ #include <cairo-xlib.h> #include <cairo.h> +#include <math.h> #include <stdlib.h> typedef struct { @@ -31,22 +32,20 @@ puglX11CairoClose(PuglView* view) } static PuglStatus -puglX11CairoOpen(PuglView* view) +puglX11CairoOpen(PuglView* view, + const double expose_width, + const double expose_height) { PuglInternals* const impl = view->impl; PuglX11CairoSurface* const surface = (PuglX11CairoSurface*)impl->surface; + const int width = (int)ceil(expose_width); + const int height = (int)ceil(expose_height); - surface->back = cairo_xlib_surface_create(view->world->impl->display, - impl->win, - impl->vi->visual, - (int)view->frame.width, - (int)view->frame.height); + surface->back = cairo_xlib_surface_create( + view->world->impl->display, impl->win, impl->vi->visual, width, height); - surface->front = - cairo_surface_create_similar(surface->back, - cairo_surface_get_content(surface->back), - (int)view->frame.width, - (int)view->frame.height); + surface->front = cairo_surface_create_similar( + surface->back, cairo_surface_get_content(surface->back), width, height); if (cairo_surface_status(surface->back) || cairo_surface_status(surface->front)) { @@ -84,7 +83,7 @@ puglX11CairoEnter(PuglView* view, const PuglExposeEvent* expose) PuglX11CairoSurface* const surface = (PuglX11CairoSurface*)impl->surface; PuglStatus st = PUGL_SUCCESS; - if (expose && !(st = puglX11CairoOpen(view))) { + if (expose && !(st = puglX11CairoOpen(view, expose->width, expose->height))) { surface->cr = cairo_create(surface->front); st = cairo_status(surface->cr) ? PUGL_CREATE_CONTEXT_FAILED : PUGL_SUCCESS; } |