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#ifndef _EOM_TRANSFORM_H_
#define _EOM_TRANSFORM_H_
#include <glib-object.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
G_BEGIN_DECLS
#ifndef __EOM_JOB_DECLR__
#define __EOM_JOB_DECLR__
typedef struct _EomJob EomJob;
#endif
typedef enum {
EOM_TRANSFORM_NONE,
EOM_TRANSFORM_ROT_90,
EOM_TRANSFORM_ROT_180,
EOM_TRANSFORM_ROT_270,
EOM_TRANSFORM_FLIP_HORIZONTAL,
EOM_TRANSFORM_FLIP_VERTICAL,
EOM_TRANSFORM_TRANSPOSE,
EOM_TRANSFORM_TRANSVERSE
} EomTransformType;
#define EOM_TYPE_TRANSFORM (eom_transform_get_type ())
#define EOM_TRANSFORM(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), EOM_TYPE_TRANSFORM, EomTransform))
#define EOM_TRANSFORM_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), EOM_TYPE_TRANSFORM, EomTransformClass))
#define EOM_IS_TRANSFORM(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), EOM_TYPE_TRANSFORM))
#define EOM_IS_TRANSFORM_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), EOM_TYPE_TRANSFORM))
#define EOM_TRANSFORM_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), EOM_TYPE_TRANSFORM, EomTransformClass))
/* =========================================
GObjecat wrapper around an affine transformation
----------------------------------------*/
typedef struct _EomTransform EomTransform;
typedef struct _EomTransformClass EomTransformClass;
typedef struct _EomTransformPrivate EomTransformPrivate;
struct _EomTransform {
GObject parent;
EomTransformPrivate *priv;
};
struct _EomTransformClass {
GObjectClass parent_klass;
};
GType eom_transform_get_type (void) G_GNUC_CONST;
GdkPixbuf* eom_transform_apply (EomTransform *trans, GdkPixbuf *pixbuf, EomJob *job);
EomTransform* eom_transform_reverse (EomTransform *trans);
EomTransform* eom_transform_compose (EomTransform *trans, EomTransform *compose);
gboolean eom_transform_is_identity (EomTransform *trans);
EomTransform* eom_transform_identity_new (void);
EomTransform* eom_transform_rotate_new (int degree);
EomTransform* eom_transform_flip_new (EomTransformType type /* only EOM_TRANSFORM_FLIP_* are valid */);
#if 0
EomTransform* eom_transform_scale_new (double sx, double sy);
#endif
EomTransform* eom_transform_new (EomTransformType trans);
EomTransformType eom_transform_get_transform_type (EomTransform *trans);
gboolean eom_transform_get_affine (EomTransform *trans, cairo_matrix_t *affine);
G_END_DECLS
#endif /* _EOM_TRANSFORM_H_ */
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