#ifndef __GST_TEXT_RENDER_H__

#define __GST_TEXT_RENDER_H__

#include <gst/gst.h>

#include <pango/pangocairo.h>

G_BEGIN_DECLS

#define GST_TYPE_TEXT_RENDER            (gst_text_render_get_type())

#define GST_TEXT_RENDER(obj)            (G_TYPE_CHECK_INSTANCE_CAST((obj),\

                                        GST_TYPE_TEXT_RENDER, GstTextRender))

#define GST_TEXT_RENDER_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST((klass),\

                                        GST_TYPE_TEXT_RENDER, GstTextRenderClass))

#define GST_TEXT_RENDER_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj),\

                                        GST_TYPE_TEXT_RENDER, GstTextRenderClass))

#define GST_IS_TEXT_RENDER(obj)         (G_TYPE_CHECK_INSTANCE_TYPE((obj),\

                                        GST_TYPE_TEXT_RENDER))

#define GST_IS_TEXT_RENDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),\

                                        GST_TYPE_TEXT_RENDER))

typedef struct _GstTextRender      GstTextRender;

typedef struct _GstTextRenderClass GstTextRenderClass;

/**

 * GstTextRenderVAlign:

 * @GST_TEXT_RENDER_VALIGN_BASELINE: draw text on the baseline

 * @GST_TEXT_RENDER_VALIGN_BOTTOM: draw text on the bottom

 * @GST_TEXT_RENDER_VALIGN_TOP: draw test on top

 *

 * Vertical alignment of the text.

 */

typedef enum {

    GST_TEXT_RENDER_VALIGN_BASELINE,

    GST_TEXT_RENDER_VALIGN_BOTTOM,

    GST_TEXT_RENDER_VALIGN_TOP

} GstTextRenderVAlign;

/**

 * GstTextRenderHAlign:

 * @GST_TEXT_RENDER_HALIGN_LEFT: align text left

 * @GST_TEXT_RENDER_HALIGN_CENTER: align text center

 * @GST_TEXT_RENDER_HALIGN_RIGHT: align text right

 *

 * Horizontal alignment of the text.

 */

typedef enum {

    GST_TEXT_RENDER_HALIGN_LEFT,

    GST_TEXT_RENDER_HALIGN_CENTER,

    GST_TEXT_RENDER_HALIGN_RIGHT

} GstTextRenderHAlign;

/**

 * GstTextRenderLineAlign:

 * @GST_TEXT_RENDER_LINE_ALIGN_LEFT: lines are left-aligned

 * @GST_TEXT_RENDER_LINE_ALIGN_CENTER: lines are center-aligned

 * @GST_TEXT_RENDER_LINE_ALIGN_RIGHT: lines are right-aligned

 *

 * Alignment of text lines relative to each other

 */

typedef enum {

    GST_TEXT_RENDER_LINE_ALIGN_LEFT = PANGO_ALIGN_LEFT,

    GST_TEXT_RENDER_LINE_ALIGN_CENTER = PANGO_ALIGN_CENTER,

    GST_TEXT_RENDER_LINE_ALIGN_RIGHT = PANGO_ALIGN_RIGHT

} GstTextRenderLineAlign;

/**

 * GstTextRender:

 *

 * Opaque textrender data structure.

 */

struct _GstTextRender {

    GstElement            element;

    GstPad               *sinkpad, *srcpad;

    gint                  width;

    gint                  height;

    PangoLayout          *layout;

    gdouble               shadow_offset;

    gdouble               outline_offset;

    guchar               *text_image;

    gint                  image_width;

    gint                  image_height;

    gint                  baseline_y;

    gboolean              use_ARGB;

    GstTextRenderVAlign     valign;

    GstTextRenderHAlign     halign;

    GstTextRenderLineAlign  line_align;

    gint xpad;

    gint ypad;

    GstEvent             *segment_event;

};

struct _GstTextRenderClass {

    GstElementClass parent_class;

    PangoContext *pango_context;

};

GType gst_text_render_get_type(void) G_GNUC_CONST;

G_END_DECLS

#endif /* __GST_TEXT_RENDER_H */