X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Fgraphics%2Fimageloader.cpp;h=fa6fcf802b2a57eb6d852e34c6363d375e521ba4;hb=054fca09f0bbd64fdbd6406a0643de938a9cd4fb;hp=da897984449993b56e3163b5ffd8830da06e22a9;hpb=d3bc6c9c2cfaaedaabfd4b5b7bf4e1da2de51331;p=libs%2Fgui.git

diff --git a/source/graphics/imageloader.cpp b/source/graphics/imageloader.cpp
index da89798..fa6fcf8 100644
--- a/source/graphics/imageloader.cpp
+++ b/source/graphics/imageloader.cpp
@@ -22,7 +22,8 @@ namespace Msp {
 namespace Graphics {
 
 ImageLoader::ImageLoader():
-	source(0)
+	source(0),
+	state(INITIAL)
 { }
 
 ImageLoader::~ImageLoader()
@@ -85,8 +86,22 @@ ImageLoader *ImageLoader::open_io(IO::Seekable &io)
 
 void ImageLoader::load(Image::Data &data)
 {
-	load_headers(data);
-	load_data(data);
+	if(state>=FINISHED)
+		throw logic_error("already loaded");
+
+	if(state<HEADERS_LOADED)
+		load_headers_(data);
+	load_pixels_(data);
+	state = FINISHED;
+}
+
+void ImageLoader::load_headers(Image::Data &data)
+{
+	if(state>=HEADERS_LOADED)
+		throw logic_error("headers already loaded");
+
+	load_headers_(data);
+	state = HEADERS_LOADED;
 }
 
 ImageLoader::Registry &ImageLoader::get_registry()