nsresult
gfxGdkNativeRenderer::DrawWithXlib(gfxXlibSurface* surface,
nsIntPoint offset,
nsIntRect* clipRects, PRUint32 numClipRects)
{
GdkDrawable *drawable = gfxPlatformGtk::GetGdkDrawable(surface);
if (!drawable) {
gfxIntSize size = surface->GetSize();
int depth = cairo_xlib_surface_get_depth(surface->CairoSurface());
GdkScreen* screen = gdk_colormap_get_screen(mColormap);
drawable =
gdk_pixmap_foreign_new_for_screen(screen, surface->XDrawable(),
size.width, size.height, depth);
if (!drawable)
return NS_ERROR_FAILURE;
gdk_drawable_set_colormap(drawable, mColormap);
gfxPlatformGtk::SetGdkDrawable(surface, drawable);
g_object_unref(drawable); // The drawable now belongs to |surface|.
}
GdkRectangle clipRect;
if (numClipRects) {
NS_ASSERTION(numClipRects == 1, "Too many clip rects");
clipRect.x = clipRects[0].x;
clipRect.y = clipRects[0].y;
clipRect.width = clipRects[0].width;
clipRect.height = clipRects[0].height;
}
return DrawWithGDK(drawable, offset.x, offset.y,
numClipRects ? &clipRect : NULL, numClipRects);
}
/**
* gdk_pixbuf_render_pixmap_and_mask_for_colormap:
* @pixbuf: A pixbuf.
* @colormap: A #GdkColormap
* @pixmap_return: Location to store a pointer to the created pixmap,
* or %NULL if the pixmap is not needed.
* @mask_return: Location to store a pointer to the created mask,
* or %NULL if the mask is not needed.
* @alpha_threshold: Threshold value for opacity values.
*
* Creates a pixmap and a mask bitmap which are returned in the @pixmap_return
* and @mask_return arguments, respectively, and renders a pixbuf and its
* corresponding tresholded alpha mask to them. This is merely a convenience
* function; applications that need to render pixbufs with dither offsets or to
* given drawables should use gdk_draw_pixbuf(), and gdk_pixbuf_render_threshold_alpha().
*
* The pixmap that is created uses the #GdkColormap specified by @colormap.
* This colormap must match the colormap of the window where the pixmap
* will eventually be used or an error will result.
*
* If the pixbuf does not have an alpha channel, then *@mask_return will be set
* to %NULL.
**/
void
gdk_pixbuf_render_pixmap_and_mask_for_colormap (GdkPixbuf *pixbuf,
GdkColormap *colormap,
GdkPixmap **pixmap_return,
GdkBitmap **mask_return,
int alpha_threshold)
{
GdkScreen *screen;
g_return_if_fail (GDK_IS_PIXBUF (pixbuf));
g_return_if_fail (GDK_IS_COLORMAP (colormap));
screen = gdk_colormap_get_screen (colormap);
if (pixmap_return)
{
GdkGC *gc;
*pixmap_return = gdk_pixmap_new (gdk_screen_get_root_window (screen),
gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf),
gdk_colormap_get_visual (colormap)->depth);
gdk_drawable_set_colormap (GDK_DRAWABLE (*pixmap_return), colormap);
gc = _gdk_drawable_get_scratch_gc (*pixmap_return, FALSE);
/* If the pixbuf has an alpha channel, using gdk_pixbuf_draw would give
* random pixel values in the area that are within the mask, but semi-
* transparent. So we treat the pixbuf like a pixbuf without alpha channel;
* see bug #487865.
*/
if (gdk_pixbuf_get_has_alpha (pixbuf))
gdk_draw_rgb_32_image (*pixmap_return, gc,
0, 0,
gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf),
GDK_RGB_DITHER_NORMAL,
gdk_pixbuf_get_pixels (pixbuf), gdk_pixbuf_get_rowstride (pixbuf));
else
gdk_draw_pixbuf (*pixmap_return, gc, pixbuf,
0, 0, 0, 0,
gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf),
GDK_RGB_DITHER_NORMAL,
0, 0);
}
if (mask_return)
{
if (gdk_pixbuf_get_has_alpha (pixbuf))
{
*mask_return = gdk_pixmap_new (gdk_screen_get_root_window (screen),
gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf), 1);
gdk_pixbuf_render_threshold_alpha (pixbuf, *mask_return,
0, 0, 0, 0,
gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf),
alpha_threshold);
}
else
*mask_return = NULL;
}
}
void
gfxGdkNativeRenderer::Draw(gfxContext* ctx, nsIntSize size,
PRUint32 flags, GdkColormap* colormap)
{
mColormap = colormap;
Visual* visual =
gdk_x11_visual_get_xvisual(gdk_colormap_get_visual(colormap));
Screen* screen =
gdk_x11_screen_get_xscreen(gdk_colormap_get_screen(colormap));
gfxXlibNativeRenderer::Draw(ctx, size, flags, screen, visual, nsnull);
}
static VALUE
rg_screen(VALUE self)
{
return GOBJ2RVAL(gdk_colormap_get_screen(_SELF(self)));
}
/*#
@method get_screen GdkColormap
@brief Gets the screen for which this colormap was created.
@return the screen for which this colormap was created.
*/
FALCON_FUNC Colormap::get_screen( VMARG )
{
NO_ARGS
vm->retval( new Gdk::Screen( vm->findWKI( "GdkScreen" )->asClass(),
gdk_colormap_get_screen( GET_COLORMAP( vm->self() ) ) ) );
}
static GdkPixbuf *
render_icon (GtkStyle *style,
const GtkIconSource *source,
GtkTextDirection direction,
GtkStateType state,
GtkIconSize size,
GtkWidget *widget,
const gchar *detail)
{
int width = 1;
int height = 1;
GdkPixbuf *scaled;
GdkPixbuf *stated;
GdkPixbuf *base_pixbuf;
GdkScreen *screen;
GtkSettings *settings;
/* Oddly, style can be NULL in this function, because
* GtkIconSet can be used without a style and if so
* it uses this function.
*/
base_pixbuf = gtk_icon_source_get_pixbuf (source);
g_return_val_if_fail (base_pixbuf != NULL, NULL);
if (widget && gtk_widget_has_screen (widget))
{
screen = gtk_widget_get_screen (widget);
settings = gtk_settings_get_for_screen (screen);
}
else if (style->colormap)
{
screen = gdk_colormap_get_screen (style->colormap);
settings = gtk_settings_get_for_screen (screen);
}
else
{
settings = gtk_settings_get_default ();
GTK_NOTE (MULTIHEAD,
g_warning ("Using the default screen for gtk_default_render_icon()"));
}
if (size != (GtkIconSize) -1 && !gtk_icon_size_lookup_for_settings (settings, size, &width, &height))
{
g_warning (G_STRLOC ": invalid icon size '%d'", size);
return NULL;
}
/* If the size was wildcarded, and we're allowed to scale, then scale; otherwise,
* leave it alone.
*/
if (size != (GtkIconSize)-1 && gtk_icon_source_get_size_wildcarded (source))
scaled = scale_or_ref (base_pixbuf, width, height);
else
scaled = g_object_ref (base_pixbuf);
/* If the state was wildcarded, then generate a state. */
if (gtk_icon_source_get_state_wildcarded (source))
{
if (state == GTK_STATE_INSENSITIVE)
{
stated = set_transparency (scaled, 0.3);
gdk_pixbuf_saturate_and_pixelate (stated, stated, 0.1, FALSE);
g_object_unref (scaled);
}
else if (state == GTK_STATE_PRELIGHT)
{
stated = gdk_pixbuf_copy (scaled);
gdk_pixbuf_saturate_and_pixelate (scaled, stated, 1.2, FALSE);
g_object_unref (scaled);
}
else
{
stated = scaled;
}
}
else
stated = scaled;
return stated;
}
