static gboolean
gimp_color_area_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GimpColorArea *area = GIMP_COLOR_AREA (widget);
GtkStyle *style = gtk_widget_get_style (widget);
cairo_t *cr;
cairo_surface_t *buffer;
if (! area->buf || ! gtk_widget_is_drawable (widget))
return FALSE;
if (area->needs_render)
gimp_color_area_render (area);
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
buffer = cairo_image_surface_create_for_data (area->buf,
CAIRO_FORMAT_RGB24,
area->width,
area->height,
area->rowstride);
cairo_set_source_surface (cr, buffer, 0.0, 0.0);
cairo_surface_destroy (buffer);
cairo_paint (cr);
if (area->draw_border)
{
cairo_set_line_width (cr, 1.0);
gdk_cairo_set_source_color (cr,
&style->fg[gtk_widget_get_state (widget)]);
cairo_rectangle (cr, 0.5, 0.5, area->width - 1, area->height - 1);
cairo_stroke (cr);
}
cairo_destroy (cr);
return FALSE;
}
static gboolean
gimp_color_area_expose (GtkWidget *widget,
GdkEventExpose *event)
{
GimpColorArea *area = GIMP_COLOR_AREA (widget);
guchar *buf;
if (! area->buf || ! GTK_WIDGET_DRAWABLE (widget))
return FALSE;
if (area->needs_render)
gimp_color_area_render (area);
buf = area->buf + event->area.y * area->rowstride + event->area.x * 3;
gdk_draw_rgb_image_dithalign (widget->window,
widget->style->black_gc,
event->area.x,
event->area.y,
event->area.width,
event->area.height,
GDK_RGB_DITHER_MAX,
buf,
area->rowstride,
event->area.x,
event->area.y);
if (area->draw_border)
gdk_draw_rectangle (widget->window,
widget->style->fg_gc[widget->state],
FALSE,
0, 0,
area->width - 1, area->height - 1);
return FALSE;
}
