void art_clear(art_buffer_p buffer, art_context_p context)
{
unsigned char r = ((context->current_color & 0xff000000) >> 24);
unsigned char g = ((context->current_color & 0xff0000) >> 16);
unsigned char b = ((context->current_color & 0xff00) >> 8);
unsigned char a = (context->current_color & 0xff);
art_rgb_run_alpha(buffer->buffer, r, g, b, a,
buffer->width * buffer->height);
}
static GdkPixbuf *
cheese_thumbnail_stretch_frame_image (GdkPixbuf *frame_image,
gint left_offset,
gint top_offset,
gint right_offset,
gint bottom_offset,
gint dest_width,
gint dest_height,
gboolean fill_flag)
{
GdkPixbuf *result_pixbuf;
guchar *pixels_ptr;
gint frame_width, frame_height;
gint y, row_stride;
gint target_width, target_frame_width;
gint target_height, target_frame_height;
frame_width = gdk_pixbuf_get_width (frame_image);
frame_height = gdk_pixbuf_get_height (frame_image);
if (fill_flag)
{
result_pixbuf = gdk_pixbuf_scale_simple (frame_image,
dest_width,
dest_height,
GDK_INTERP_NEAREST);
}
else
{
result_pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
TRUE,
8,
dest_width,
dest_height);
}
row_stride = gdk_pixbuf_get_rowstride (result_pixbuf);
pixels_ptr = gdk_pixbuf_get_pixels (result_pixbuf);
if (!fill_flag)
{
for (y = 0; y < dest_height; y++)
{
art_rgb_run_alpha (pixels_ptr,
255, 255,
255, 255,
dest_width);
pixels_ptr += row_stride;
}
}
target_width = dest_width - left_offset - right_offset;
target_frame_width = frame_width - left_offset - right_offset;
target_height = dest_height - top_offset - bottom_offset;
target_frame_height = frame_height - top_offset - bottom_offset;
/* Draw the left top corner and top row */
gdk_pixbuf_copy_area (frame_image,
0, 0,
left_offset,
top_offset,
result_pixbuf,
0, 0);
draw_frame_row (frame_image,
target_width,
target_frame_width,
0, 0,
result_pixbuf,
left_offset,
top_offset);
/* Draw the right top corner and left column */
gdk_pixbuf_copy_area (frame_image,
frame_width - right_offset,
0,
right_offset,
top_offset,
result_pixbuf,
dest_width - right_offset,
0);
draw_frame_column (frame_image,
target_height,
target_frame_height,
0, 0,
result_pixbuf,
top_offset,
left_offset);
/* Draw the bottom right corner and bottom row */
gdk_pixbuf_copy_area (frame_image,
frame_width - right_offset,
frame_height - bottom_offset,
right_offset,
bottom_offset,
result_pixbuf,
dest_width - right_offset,
dest_height - bottom_offset);
draw_frame_row (frame_image,
target_width,
target_frame_width,
frame_height - bottom_offset,
dest_height - bottom_offset,
result_pixbuf,
left_offset, bottom_offset);
/* Draw the bottom left corner and the right column */
gdk_pixbuf_copy_area (frame_image,
0,
frame_height - bottom_offset,
left_offset,
bottom_offset,
result_pixbuf,
0,
dest_height - bottom_offset);
draw_frame_column (frame_image,
target_height,
target_frame_height,
frame_width - right_offset,
dest_width - right_offset,
result_pixbuf, top_offset,
right_offset);
return result_pixbuf;
}
