static void
set_surface(HippoCanvasImage *image,
cairo_surface_t *surface)
{
if (surface != image->surface) {
int old_width, old_height;
gboolean request_changed = FALSE;
#if 0
/* The FC5 version of Cairo doesn't have this API */
if (cairo_surface_get_type(surface) != CAIRO_SURFACE_TYPE_IMAGE) {
g_warning("Image canvas item only supports image surfaces");
return;
}
#endif
old_width = image->surface ? cairo_image_surface_get_width(image->surface) : 0;
old_height = image->surface ? cairo_image_surface_get_height(image->surface) : 0;
if (surface)
cairo_surface_reference(surface);
if (image->surface)
cairo_surface_destroy(image->surface);
image->surface = surface;
if (image->scale_width < 0) {
int width = image->surface ? cairo_image_surface_get_width(image->surface) : 0;
if (width != old_width)
request_changed = TRUE;
}
if (image->scale_height < 0) {
int height = image->surface ? cairo_image_surface_get_height(image->surface) : 0;
if (height != old_height)
request_changed = TRUE;
}
if (request_changed)
hippo_canvas_item_emit_request_changed(HIPPO_CANVAS_ITEM(image));
hippo_canvas_item_emit_paint_needed(HIPPO_CANVAS_ITEM(image), 0, 0, -1, -1);
g_object_notify(G_OBJECT(image), "image");
}
}
static void
hippo_canvas_text_set_context(HippoCanvasItem *item,
HippoCanvasContext *context)
{
HippoCanvasBox *box = HIPPO_CANVAS_BOX(item);
gboolean changed;
changed = context != box->context;
item_parent_class->set_context(item, context);
/* we can't create a layout until we have a context,
* so we have to queue a size change when the context
* is set.
*/
if (changed) {
hippo_canvas_item_emit_request_changed(HIPPO_CANVAS_ITEM(item));
hippo_canvas_item_emit_paint_needed(HIPPO_CANVAS_ITEM(item), 0, 0, -1, -1);
}
}
static gboolean
hippo_canvas_grip_motion_notify_event (HippoCanvasItem *item,
HippoEvent *event)
{
HippoCanvasGrip *grip = HIPPO_CANVAS_GRIP(item);
gboolean result;
gboolean prelighted;
/* chain up so the box item can track child hovering */
result = item_parent_class->motion_notify_event(item, event);
/* but also update our prelight */
if (event->u.motion.detail == HIPPO_MOTION_DETAIL_LEAVE)
prelighted = FALSE;
else
prelighted = TRUE;
if (grip->prelighted != prelighted) {
grip->prelighted = prelighted;
hippo_canvas_item_emit_paint_needed(item, 0, 0, -1, -1);
}
return result;
}
static void
hippo_canvas_text_set_property(GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
HippoCanvasText *text;
text = HIPPO_CANVAS_TEXT(object);
switch (prop_id) {
case PROP_TEXT:
{
const char *new_text;
new_text = g_value_get_string(value);
if (!(new_text == text->text ||
(new_text && text->text && strcmp(new_text, text->text) == 0))) {
g_free(text->text);
text->text = g_strdup(new_text);
hippo_canvas_item_emit_request_changed(HIPPO_CANVAS_ITEM(text));
hippo_canvas_item_emit_paint_needed(HIPPO_CANVAS_ITEM(text), 0, 0, -1, -1);
}
}
break;
case PROP_ATTRIBUTES:
{
PangoAttrList *attrs = g_value_get_boxed(value);
if (attrs)
pango_attr_list_ref(attrs);
if (text->attributes)
pango_attr_list_unref(text->attributes);
text->attributes = attrs;
hippo_canvas_item_emit_request_changed(HIPPO_CANVAS_ITEM(text));
hippo_canvas_item_emit_paint_needed(HIPPO_CANVAS_ITEM(text), 0, 0, -1, -1);
}
break;
case PROP_MARKUP:
{
char *text;
PangoAttrList *attrs;
GError *error = NULL;
if (!pango_parse_markup(g_value_get_string(value),
-1,
0,
&attrs,
&text,
NULL,
&error)) {
g_error("Failed to set markup: %s", error->message);
return;
}
g_object_set(object, "text", text, "attributes", attrs, NULL);
pango_attr_list_unref(attrs);
g_free(text);
}
break;
case PROP_FONT_SCALE:
text->font_scale = g_value_get_double(value);
hippo_canvas_item_emit_request_changed(HIPPO_CANVAS_ITEM(text));
hippo_canvas_item_emit_paint_needed(HIPPO_CANVAS_ITEM(text), 0, 0, -1, -1);
break;
case PROP_SIZE_MODE:
text->size_mode = g_value_get_enum(value);
hippo_canvas_item_emit_request_changed(HIPPO_CANVAS_ITEM(text));
hippo_canvas_item_emit_paint_needed(HIPPO_CANVAS_ITEM(text), 0, 0, -1, -1);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
