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#include "imageset.h"
#include <string.h>
struct _Imageset {
gchar *name;
gint width, height;
gint offsetX, offsetY;
GdkPixbuf *pixbuf;
};
Imageset *
imageset_new (
const XMLNode *node,
const gchar *cdf_filename
) {
Imageset *imgset;
gchar *src, *filename;
GError *err = NULL;
gboolean fail = FALSE;
g_return_val_if_fail (g_strcmp0 (node->name, "imageset") == 0, NULL);
imgset = (Imageset *) g_new0 (Imageset, 1);
imgset->name = xml_node_get_attr_value (node, "name");
if (imgset->name == NULL) {
/* TODO: report error */
fail = TRUE;
}
src = xml_node_get_attr_value (node, "src");
if (src == NULL) {
/* TODO: report error */
fail = TRUE;
} else {
gchar *delim = strchr (src, '|');
if (delim != NULL)
*delim = 0;
/* TODO: process palettes? */
}
imgset->width = xml_node_get_int_attr_value (node, "width", -1);
imgset->height = xml_node_get_int_attr_value (node, "height", -1);
if (imgset->width <= 0 || imgset->height <= 0) {
/* TODO: report error */
fail = TRUE;
}
imgset->offsetX = xml_node_get_int_attr_value (node, "offsetX", 0);
imgset->offsetY = xml_node_get_int_attr_value (node, "offsetY", 0);
filename = g_strconcat (cdf_filename, "/", src, NULL);
imgset->pixbuf = gdk_pixbuf_new_from_file (filename, &err);
if (imgset->pixbuf == NULL) {
/* TODO handle err and report error */
fail = TRUE;
}
if (fail) {
imageset_free (imgset);
return NULL;
}
return imgset;
}
gint
imageset_compare_by_name (
const Imageset *first,
const Imageset *second
) {
return g_strcmp0 (first->name, second->name);
}
GdkPixbuf *
imageset_get_sprite_by_index (
const Imageset *imageset,
gint index
) {
gint w = gdk_pixbuf_get_width (imageset->pixbuf);
w /= imageset->width;
g_return_val_if_fail (index >= 0, NULL);
return gdk_pixbuf_new_subpixbuf (
imageset->pixbuf,
(index % w) * imageset->width,
(index / w) * imageset->height,
imageset->width,
imageset->height
);
}
void
imageset_free (Imageset *imgset) {
g_free (imgset->name);
if (imgset->pixbuf != NULL)
g_object_unref (imgset->pixbuf);
g_free (imgset);
}
gboolean
imageset_name_equals (
const Imageset *imageset,
const gchar *name
) {
return g_strcmp0 (imageset->name, name) == 0;
}
void
imageset_get_offset (
const Imageset *imageset,
gint *offsetX,
gint *offsetY
) {
*offsetX = imageset->offsetX;
*offsetY = imageset->offsetY;
}
void
imageset_get_size (
const Imageset *imageset,
gint *width,
gint *height
) {
*width = imageset->width;
*height = imageset->height;
}
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