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implement {h,v}alignment property for timeline titles

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Brandon Lewis 2010-06-16 19:03:51 +02:00 committed by Edward Hervey
parent 10994521e0
commit aa19ff62ec
2 changed files with 136 additions and 1 deletions
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135
ges/ges-timeline-title-source.c
View file

@ -39,6 +39,10 @@ G_DEFINE_TYPE (GESTimelineTitleSource, ges_tl_title_src,
#define DEFAULT_PROP_TEXT ""
#define DEFAULT_PROP_FONT_DESC DEFAULT_FONT_DESC
#define DEFAULT_PROP_VALIGNMENT DEFAULT_VALIGNMENT
#define DEFAULT_PROP_HALIGNMENT DEFAULT_HALIGNMENT
#define GES_TIMELINE_TITLE_SRC_VALIGN_TYPE (ges_timeline_title_source_valign_get_type())
#define GES_TIMELINE_TITLE_SRC_HALIGN_TYPE (ges_timeline_title_source_halign_get_type())
enum
{
@ -46,6 +50,8 @@ enum
PROP_MUTE,
PROP_TEXT,
PROP_FONT_DESC,
PROP_HALIGNMENT,
PROP_VALIGNMENT,
};
static void
@ -58,10 +64,22 @@ static void
ges_tl_title_src_set_font_desc (GESTimelineTitleSource * self, const gchar *
font_desc);
static void
ges_tl_title_src_set_valign (GESTimelineTitleSource * self,
GESTrackVideoTitleSrcVAlign);
static void
ges_tl_title_src_set_halign (GESTimelineTitleSource * self,
GESTrackVideoTitleSrcHAlign);
static GESTrackObject
* ges_tl_title_src_create_track_object (GESTimelineObject * obj,
GESTrack * track);
static GType ges_timeline_title_source_valign_get_type (void);
static GType ges_timeline_title_source_halign_get_type (void);
static void
ges_tl_title_src_get_property (GObject * object, guint property_id,
GValue * value, GParamSpec * pspec)
@ -78,6 +96,12 @@ ges_tl_title_src_get_property (GObject * object, guint property_id,
case PROP_FONT_DESC:
g_value_set_string (value, tfs->font_desc);
break;
case PROP_HALIGNMENT:
g_value_set_enum (value, tfs->halign);
break;
case PROP_VALIGNMENT:
g_value_set_enum (value, tfs->valign);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
@ -99,6 +123,12 @@ ges_tl_title_src_set_property (GObject * object, guint property_id,
case PROP_FONT_DESC:
ges_tl_title_src_set_font_desc (tfs, g_value_get_string (value));
break;
case PROP_HALIGNMENT:
ges_tl_title_src_set_halign (tfs, g_value_get_enum (value));
break;
case PROP_VALIGNMENT:
ges_tl_title_src_set_valign (tfs, g_value_get_enum (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
@ -155,8 +185,27 @@ ges_tl_title_src_class_init (GESTimelineTitleSourceClass * klass)
"Pango font description of font to be used for rendering. "
"See documentation of pango_font_description_from_string "
"for syntax.", DEFAULT_PROP_FONT_DESC,
G_PARAM_WRITABLE | G_PARAM_STATIC_STRINGS));
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GESTimelineTitleSource:valignment
*
* Vertical alignent of the text
*/
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_VALIGNMENT,
g_param_spec_enum ("valignment", "vertical alignment",
"Vertical alignment of the text", GES_TIMELINE_TITLE_SRC_VALIGN_TYPE,
DEFAULT_PROP_VALIGNMENT, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GESTimelineTitleSource:halignment
*
* Horizontal alignment of the text
*/
g_object_class_install_property (G_OBJECT_CLASS (klass), PROP_HALIGNMENT,
g_param_spec_enum ("halignment", "horizontal alignment",
"Horizontal alignment of the text",
GES_TIMELINE_TITLE_SRC_HALIGN_TYPE, DEFAULT_PROP_HALIGNMENT,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GESTimelineTitleSource:mute:
*
@ -176,6 +225,50 @@ ges_tl_title_src_init (GESTimelineTitleSource * self)
GES_TIMELINE_OBJECT (self)->duration = 0;
self->text = NULL;
self->text = NULL;
self->halign = DEFAULT_PROP_HALIGNMENT;
self->valign = DEFAULT_PROP_VALIGNMENT;
}
static GType
ges_timeline_title_source_valign_get_type (void)
{
static GType text_overlay_valign_type = 0;
static gsize initialized = 0;
static const GEnumValue text_overlay_valign[] = {
{GES_TRACK_VIDEO_TITLE_SRC_VALIGN_BASELINE, "baseline", "baseline"},
{GES_TRACK_VIDEO_TITLE_SRC_VALIGN_BOTTOM, "bottom", "bottom"},
{GES_TRACK_VIDEO_TITLE_SRC_VALIGN_TOP, "top", "top"},
{0, NULL, NULL},
};
if (g_once_init_enter (&initialized)) {
text_overlay_valign_type =
g_enum_register_static ("GESTimelineTitleSourceVAlign",
text_overlay_valign);
g_once_init_leave (&initialized, 1);
}
return text_overlay_valign_type;
}
static GType
ges_timeline_title_source_halign_get_type (void)
{
static GType text_overlay_halign_type = 0;
static gsize initialized = 0;
static const GEnumValue text_overlay_halign[] = {
{GES_TRACK_VIDEO_TITLE_SRC_HALIGN_LEFT, "left", "left"},
{GES_TRACK_VIDEO_TITLE_SRC_HALIGN_CENTER, "center", "center"},
{GES_TRACK_VIDEO_TITLE_SRC_HALIGN_RIGHT, "right", "right"},
{0, NULL, NULL},
};
if (g_once_init_enter (&initialized)) {
text_overlay_halign_type =
g_enum_register_static ("GESTimelineTitleSourceHAlign",
text_overlay_halign);
g_once_init_leave (&initialized, 1);
}
return text_overlay_halign_type;
}
static void
@ -217,6 +310,46 @@ ges_tl_title_src_set_font_desc (GESTimelineTitleSource * self, const gchar *
}
}
static void
ges_tl_title_src_set_halign (GESTimelineTitleSource * self,
GESTrackVideoTitleSrcHAlign halign)
{
GList *tmp;
GESTimelineObject *object = (GESTimelineObject *) self;
GST_DEBUG ("self:%p, halign:%d", self, halign);
self->halign = halign;
for (tmp = object->trackobjects; tmp; tmp = tmp->next) {
GESTrackObject *trackobject = (GESTrackObject *) tmp->data;
if (trackobject->track->type == GES_TRACK_TYPE_VIDEO)
ges_track_video_title_source_set_halignment (GES_TRACK_VIDEO_TITLE_SOURCE
(trackobject), self->halign);
}
}
static void
ges_tl_title_src_set_valign (GESTimelineTitleSource * self,
GESTrackVideoTitleSrcVAlign valign)
{
GList *tmp;
GESTimelineObject *object = (GESTimelineObject *) self;
GST_DEBUG ("self:%p, valign:%d", self, valign);
self->valign = valign;
for (tmp = object->trackobjects; tmp; tmp = tmp->next) {
GESTrackObject *trackobject = (GESTrackObject *) tmp->data;
if (trackobject->track->type == GES_TRACK_TYPE_VIDEO)
ges_track_video_title_source_set_valignment (GES_TRACK_VIDEO_TITLE_SOURCE
(trackobject), self->valign);
}
}
static void
ges_tl_title_src_set_mute (GESTimelineTitleSource * self, gboolean mute)
{

2
ges/ges-timeline-title-source.h
View file

@ -58,6 +58,8 @@ struct _GESTimelineTitleSource {
gboolean mute;
gchar *text;
gchar *font_desc;
gint halign;
gint valign;
};
/**