static Bool set_aspect_ratio_from_image (ASGtkImageView * iv)
{
gfloat old_ratio, new_ratio;
if (iv->image_entry && iv->image_entry->preview)
new_ratio =
(gfloat) iv->image_entry->preview->width /
(gfloat) iv->image_entry->preview->height;
else
new_ratio = 1.0;
old_ratio = get_old_ratio (iv);
if (old_ratio == new_ratio)
return False;
gtk_aspect_frame_set (GTK_ASPECT_FRAME (iv->frame), 0.5, 0.5, new_ratio,
FALSE);
return True;
}
static void
photos_print_preview_init (PhotosPrintPreview *preview)
{
PhotosPrintPreviewPrivate *priv;
gfloat ratio;
preview->priv = photos_print_preview_get_instance_private (preview);
priv = preview->priv;
priv->area = GTK_WIDGET (gtk_drawing_area_new ());
gtk_container_add (GTK_CONTAINER (preview), priv->area);
priv->p_width = 8.5;
priv->p_height = 11.0;
ratio = priv->p_width/priv->p_height;
gtk_aspect_frame_set (GTK_ASPECT_FRAME (preview),
0.5, 0.5, ratio, FALSE);
priv->pixbuf = NULL;
priv->pixbuf_scaled = NULL;
priv->pixbuf_x_align = 0.5;
priv->pixbuf_y_align = 0.5;
priv->i_scale = 1;
priv->surface = NULL;
priv->flag_create_surface = TRUE;
priv->p_scale = 0;
priv->l_margin = 0.25;
priv->r_margin = 0.25;
priv->t_margin = 0.25;
priv->b_margin = 0.56;
priv->grabbed = FALSE;
priv->cursorx = 0;
priv->cursory = 0;
priv->r_dx = 0;
priv->r_dy = 0;
}
static void
eom_print_preview_init (EomPrintPreview *preview)
{
EomPrintPreviewPrivate *priv;
gfloat ratio;
priv = preview->priv = EOM_PRINT_PREVIEW_GET_PRIVATE (preview);
priv->area = GTK_WIDGET (gtk_drawing_area_new ());
gtk_container_add (GTK_CONTAINER (preview), priv->area);
priv->p_width = 8.5;
priv->p_height = 11.0;
ratio = priv->p_width/priv->p_height;
gtk_aspect_frame_set (GTK_ASPECT_FRAME (preview),
0.5, 0.5, ratio, FALSE);
priv->image = NULL;
priv->image_scaled = NULL;
priv->image_x_align = 0.5;
priv->image_y_align = 0.5;
priv->i_scale = 1;
priv->surface = NULL;
priv->flag_create_surface = TRUE;
priv->p_scale = 0;
priv->l_margin = 0.25;
priv->r_margin = 0.25;
priv->t_margin = 0.25;
priv->b_margin = 0.56;
priv->grabbed = FALSE;
priv->cursorx = 0;
priv->cursory = 0;
priv->r_dx = 0;
priv->r_dy = 0;
}
/* ------------------------------
* gap_pview_set_size
* ------------------------------
* set new preview size
* and allocate buffers for src columns and row at previesize
*/
void
gap_pview_set_size(GapPView *pv_ptr, gint pv_width, gint pv_height, gint pv_check_size)
{
g_return_if_fail (pv_width > 0 && pv_height > 0);
if(pv_ptr->da_widget == NULL) { return; }
gap_pview_reset(pv_ptr);
gtk_widget_set_size_request (pv_ptr->da_widget, pv_width, pv_height);
if(pv_ptr->aspect_frame)
{
gtk_aspect_frame_set (GTK_ASPECT_FRAME(pv_ptr->aspect_frame)
,0.5 /* align x centered */
,0.5 /* align y centered */
, pv_width / pv_height
, TRUE /* obey_child */
);
gtk_widget_set_size_request (pv_ptr->aspect_frame
, pv_width+5
, (gdouble)(pv_width+5) * ( (gdouble)pv_height / (gdouble)pv_width) /* pv_height */
);
}
pv_ptr->pv_width = pv_width;
pv_ptr->pv_height = pv_height;
pv_ptr->pv_check_size = pv_check_size;
pv_ptr->pv_area_data = g_new ( guchar
, pv_ptr->pv_height * pv_ptr->pv_width * pv_ptr->pv_bpp );
pv_ptr->src_col = g_new ( gint, pv_ptr->pv_width ); /* column fetch indexes foreach preview col */
if(pv_ptr->pv_desaturated_area_data)
{
g_free(pv_ptr->pv_desaturated_area_data);
pv_ptr->pv_desaturated_area_data = NULL;
}
} /* end gap_pview_set_size */
static
void unicapgtk_video_display_init( UnicapgtkVideoDisplay *ugtk )
{
ugtk->backend_fourcc = 0;
gtk_aspect_frame_set( GTK_ASPECT_FRAME( ugtk ), 0.5, 0.5, 1.0, TRUE );
gtk_frame_set_shadow_type( GTK_FRAME( ugtk ), GTK_SHADOW_NONE );
ugtk->drawing_area = gtk_drawing_area_new( );
gtk_widget_add_events( ugtk->drawing_area,
GDK_ALL_EVENTS_MASK );
gtk_container_add( GTK_CONTAINER( ugtk ), ugtk->drawing_area );
gtk_widget_show( ugtk->drawing_area );
g_signal_connect( ugtk->drawing_area, "hierarchy-changed",
G_CALLBACK( da_hierarchy_changed_cb ), ugtk );
g_signal_connect( ugtk->drawing_area, "configure-event",
G_CALLBACK( da_configure_cb ),
ugtk );
g_signal_connect( ugtk->drawing_area, "unmap",
G_CALLBACK(gtk_widget_destroyed),
&ugtk->gc );
g_signal_connect( ugtk->drawing_area, "expose-event",
G_CALLBACK( da_expose_event ),
ugtk );
g_signal_connect( ugtk->drawing_area, "size-allocate",
G_CALLBACK( da_size_allocate ),
ugtk );
ugtk->unicap_handle = NULL;
ugtk->scale_to_fit = FALSE;
ugtk->display_timeout_tag = TIMEOUT_UNSET;
}
