4 * Copyright (C) 2008 - 2010 The Geeqie Team
8 * This software is released under the GNU General Public License (GNU GPL).
9 * Please read the included file COPYING for more information.
10 * This software comes with no warranty of any kind, use at your own risk!
17 #define TYPE_IMAGE_LOADER (image_loader_get_type())
20 typedef struct _ImageLoaderBackend ImageLoaderBackend;
21 struct _ImageLoaderBackend
23 gpointer (*loader_new)(GCallback area_updated_cb, GCallback size_cb, GCallback area_prepared_cb, gpointer data);
24 void (*set_size)(gpointer loader, int width, int height);
25 gboolean (*write)(gpointer loader, const guchar *buf, gsize count, GError **error);
26 GdkPixbuf* (*get_pixbuf)(gpointer loader);
27 gboolean (*close)(gpointer loader, GError **error);
29 gchar* (*get_format_name)(gpointer loader);
30 gchar** (*get_format_mime_types)(gpointer loader);
34 //typedef struct _ImageLoader ImageLoader;
35 typedef struct _ImageLoaderClass ImageLoaderClass;
52 gint requested_height;
56 guint idle_id; /* event source id */
61 ImageLoaderBackend backend;
63 guint idle_done_id; /* event source id */
64 GList *area_param_list;
65 GList *area_param_delayed_list;
67 gboolean delay_area_ready;
72 GCond *can_destroy_cond;
76 gsize read_buffer_size;
77 guint idle_read_loop_count;
80 struct _ImageLoaderClass {
84 void (*area_ready)(ImageLoader *, guint x, guint y, guint w, guint h, gpointer);
85 void (*error)(ImageLoader *, gpointer);
86 void (*done)(ImageLoader *, gpointer);
87 void (*percent)(ImageLoader *, gdouble, gpointer);
90 GType image_loader_get_type(void);
92 ImageLoader *image_loader_new(FileData *fd);
94 void image_loader_free(ImageLoader *il);
96 /* delay area_ready signals */
97 void image_loader_delay_area_ready(ImageLoader *il, gboolean enable);
99 /* Speed up loading when you only need at most width x height size image,
100 * only the jpeg GdkPixbuf loader benefits from it - so there is no
101 * guarantee that the image will scale down to the requested size..
103 void image_loader_set_requested_size(ImageLoader *il, gint width, gint height);
105 void image_loader_set_buffer_size(ImageLoader *il, guint size);
107 /* this only has effect if used before image_loader_start()
108 * default is G_PRIORITY_DEFAULT_IDLE
110 void image_loader_set_priority(ImageLoader *il, gint priority);
112 gboolean image_loader_start(ImageLoader *il);
115 GdkPixbuf *image_loader_get_pixbuf(ImageLoader *il);
116 gchar *image_loader_get_format(ImageLoader *il);
117 gdouble image_loader_get_percent(ImageLoader *il);
118 gboolean image_loader_get_is_done(ImageLoader *il);
119 FileData *image_loader_get_fd(ImageLoader *il);
120 gboolean image_loader_get_shrunk(ImageLoader *il);
121 const gchar *image_loader_get_error(ImageLoader *il);
123 gboolean image_load_dimensions(FileData *fd, gint *width, gint *height);
126 /* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */