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presentation: Allow to change rotation in presentation mode

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This commit is contained in:
Carlos Garcia Campos 2011-02-12 12:49:49 +01:00
parent 25d83d08d3
commit ef9c2b1a18
2 changed files with 76 additions and 18 deletions
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91
libview/ev-view-presentation.c
View File

@ -57,6 +57,8 @@ struct _EvViewPresentation
{
GtkWidget base;
guint is_constructing : 1;
guint current_page;
cairo_surface_t *current_surface;
EvDocument *document;
@ -379,6 +381,25 @@ ev_view_presentation_delete_job (EvViewPresentation *pview,
g_object_unref (job);
}
static void
ev_view_presentation_reset_jobs (EvViewPresentation *pview)
{
if (pview->curr_job) {
ev_view_presentation_delete_job (pview, pview->curr_job);
pview->curr_job = NULL;
}
if (pview->prev_job) {
ev_view_presentation_delete_job (pview, pview->prev_job);
pview->prev_job = NULL;
}
if (pview->next_job) {
ev_view_presentation_delete_job (pview, pview->next_job);
pview->next_job = NULL;
}
}
static void
ev_view_presentation_update_current_page (EvViewPresentation *pview,
guint page)
@ -927,21 +948,7 @@ ev_view_presentation_dispose (GObject *object)
ev_view_presentation_animation_cancel (pview);
ev_view_presentation_transition_stop (pview);
ev_view_presentation_hide_cursor_timeout_stop (pview);
if (pview->curr_job) {
ev_view_presentation_delete_job (pview, pview->curr_job);
pview->curr_job = NULL;
}
if (pview->prev_job) {
ev_view_presentation_delete_job (pview, pview->prev_job);
pview->prev_job = NULL;
}
if (pview->next_job) {
ev_view_presentation_delete_job (pview, pview->next_job);
pview->next_job = NULL;
}
ev_view_presentation_reset_jobs (pview);
if (pview->current_surface) {
cairo_surface_destroy (pview->current_surface);
@ -1345,7 +1352,7 @@ ev_view_presentation_set_property (GObject *object,
pview->current_page = g_value_get_uint (value);
break;
case PROP_ROTATION:
pview->rotation = g_value_get_uint (value);
ev_view_presentation_set_rotation (pview, g_value_get_uint (value));
break;
case PROP_INVERTED_COLORS:
pview->inverted_colors = g_value_get_boolean (value);
@ -1355,6 +1362,23 @@ ev_view_presentation_set_property (GObject *object,
}
}
static void
ev_view_presentation_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
EvViewPresentation *pview = EV_VIEW_PRESENTATION (object);
switch (prop_id) {
case PROP_ROTATION:
g_value_set_uint (value, ev_view_presentation_get_rotation (pview));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
}
}
static GObject *
ev_view_presentation_constructor (GType type,
guint n_construct_properties,
@ -1367,6 +1391,7 @@ ev_view_presentation_constructor (GType type,
n_construct_properties,
construct_params);
pview = EV_VIEW_PRESENTATION (object);
pview->is_constructing = FALSE;
if (EV_IS_DOCUMENT_LINKS (pview->document)) {
pview->page_cache = ev_page_cache_new (pview->document);
@ -1400,6 +1425,7 @@ ev_view_presentation_class_init (EvViewPresentationClass *klass)
gobject_class->constructor = ev_view_presentation_constructor;
gobject_class->set_property = ev_view_presentation_set_property;
gobject_class->get_property = ev_view_presentation_get_property;
g_object_class_install_property (gobject_class,
PROP_DOCUMENT,
@ -1423,8 +1449,8 @@ ev_view_presentation_class_init (EvViewPresentationClass *klass)
"Rotation",
"Current rotation angle",
0, 360, 0,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY));
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
g_object_class_install_property (gobject_class,
PROP_INVERTED_COLORS,
g_param_spec_boolean ("inverted_colors",
@ -1507,6 +1533,7 @@ static void
ev_view_presentation_init (EvViewPresentation *pview)
{
gtk_widget_set_can_focus (GTK_WIDGET (pview), TRUE);
pview->is_constructing = TRUE;
}
GtkWidget *
@ -1531,3 +1558,31 @@ ev_view_presentation_get_current_page (EvViewPresentation *pview)
{
return pview->current_page;
}
void
ev_view_presentation_set_rotation (EvViewPresentation *pview,
gint rotation)
{
if (rotation >= 360)
rotation -= 360;
else if (rotation < 0)
rotation += 360;
if (pview->rotation == rotation)
return;
pview->rotation = rotation;
g_object_notify (G_OBJECT (pview), "rotation");
if (pview->is_constructing)
return;
pview->scale = 0;
ev_view_presentation_reset_jobs (pview);
ev_view_presentation_update_current_page (pview, pview->current_page);
}
guint
ev_view_presentation_get_rotation (EvViewPresentation *pview)
{
return pview->rotation;
}

3
libview/ev-view-presentation.h
View File

@ -47,6 +47,9 @@ GtkWidget *ev_view_presentation_new (EvDocument *document,
guint ev_view_presentation_get_current_page (EvViewPresentation *pview);
void ev_view_presentation_next_page (EvViewPresentation *pview);
void ev_view_presentation_previous_page (EvViewPresentation *pview);
void ev_view_presentation_set_rotation (EvViewPresentation *pview,
gint rotation);
guint ev_view_presentation_get_rotation (EvViewPresentation *pview);
G_END_DECLS