From 725bd8b778046c6b3acd0b98e1fa8a05d5b732b1 Mon Sep 17 00:00:00 2001
From: Johannes Schickel
Date: Sun, 14 Sep 2008 21:13:40 +0000
Subject: Added thumbnail support for launcher to SCUMM engine.

svn-id: r34540
---
 engines/scumm/detection.cpp |  8 +++++++-
 engines/scumm/saveload.cpp  | 31 +++++++++++++------------------
 engines/scumm/scumm.h       |  8 +++++---
 3 files changed, 25 insertions(+), 22 deletions(-)

(limited to 'engines')

diff --git a/engines/scumm/detection.cpp b/engines/scumm/detection.cpp
index 1062e77114..af1838b27d 100644
--- a/engines/scumm/detection.cpp
+++ b/engines/scumm/detection.cpp
@@ -683,6 +683,7 @@ public:
 
 	virtual SaveStateList listSaves(const char *target) const;
 	virtual void removeSaveState(const char *target, int slot) const;
+	virtual Graphics::Surface *loadThumbnailFromSlot(const char *target, int slot) const;
 };
 
 bool ScummMetaEngine::hasFeature(MetaEngineFeature f) const {
@@ -690,7 +691,8 @@ bool ScummMetaEngine::hasFeature(MetaEngineFeature f) const {
 		(f == kSupportsRTL) ||
 		(f == kSupportsListSaves) ||
 		(f == kSupportsDirectLoad) ||
-		(f == kSupportsDeleteSave);
+		(f == kSupportsDeleteSave) ||
+		(f == kSupportsThumbnails);
 }
 
 GameList ScummMetaEngine::getSupportedGames() const {
@@ -986,6 +988,10 @@ void ScummMetaEngine::removeSaveState(const char *target, int slot) const {
 	g_system->getSavefileManager()->removeSavefile(filename.c_str());
 }
 
+Graphics::Surface *ScummMetaEngine::loadThumbnailFromSlot(const char *target, int slot) const {
+	return ScummEngine::loadThumbnailFromSlot(target, slot);
+}
+
 #if PLUGIN_ENABLED_DYNAMIC(SCUMM)
 	REGISTER_PLUGIN_DYNAMIC(SCUMM, PLUGIN_TYPE_ENGINE, ScummMetaEngine);
 #else
diff --git a/engines/scumm/saveload.cpp b/engines/scumm/saveload.cpp
index eb7cf1ba56..a747bc2629 100644
--- a/engines/scumm/saveload.cpp
+++ b/engines/scumm/saveload.cpp
@@ -73,20 +73,6 @@ struct SaveInfoSection {
 
 #define INFOSECTION_VERSION 2
 
-Graphics::Surface *ScummEngine::loadThumbnail(Common::SeekableReadStream *file) {
-	if (!Graphics::checkThumbnailHeader(*file))
-		return 0;
-
-	Graphics::Surface *thumb = new Graphics::Surface();
-	assert(thumb);
-	if (!Graphics::loadThumbnail(*file, *thumb)) {
-		delete thumb;
-		return 0;
-	}
-
-	return thumb;
-}
-
 #pragma mark -
 
 void ScummEngine::requestSave(int slot, const char *name, bool temporary) {
@@ -494,7 +480,7 @@ bool getSavegameName(Common::InSaveFile *in, Common::String &desc, int heversion
 	return true;
 }
 
-Graphics::Surface *ScummEngine::loadThumbnailFromSlot(int slot) {
+Graphics::Surface *ScummEngine::loadThumbnailFromSlot(const char *target, int slot) {
 	char filename[256];
 	Common::SeekableReadStream *in;
 	SaveGameHeader hdr;
@@ -502,8 +488,9 @@ Graphics::Surface *ScummEngine::loadThumbnailFromSlot(int slot) {
 	if (slot < 0)
 		return  0;
 
-	makeSavegameName(filename, slot, false);
-	if (!(in = _saveFileMan->openForLoading(filename))) {
+	// TODO: Remove code duplication (check: makeSavegameName)
+	snprintf(filename, sizeof(filename), "%s.s%02d", target, slot);
+	if (!(in = g_system->getSavefileManager()->openForLoading(filename))) {
 		return 0;
 	}
 
@@ -519,7 +506,15 @@ Graphics::Surface *ScummEngine::loadThumbnailFromSlot(int slot) {
 		return 0;
 	}
 
-	Graphics::Surface *thumb = loadThumbnail(in);
+	Graphics::Surface *thumb = 0;
+	if (Graphics::checkThumbnailHeader(*in)) {
+		thumb = new Graphics::Surface();
+		assert(thumb);
+		if (!Graphics::loadThumbnail(*in, *thumb)) {
+			delete thumb;
+			thumb = 0;
+		}
+	}
 
 	delete in;
 	return thumb;
diff --git a/engines/scumm/scumm.h b/engines/scumm/scumm.h
index 3667e5770d..7db40112d8 100644
--- a/engines/scumm/scumm.h
+++ b/engines/scumm/scumm.h
@@ -627,12 +627,14 @@ public:
 
 // thumbnail + info stuff
 public:
-	Graphics::Surface *loadThumbnailFromSlot(int slot);
+	Graphics::Surface *loadThumbnailFromSlot(int slot) {
+		return loadThumbnailFromSlot(_targetName.c_str(), slot);
+	}
+	static Graphics::Surface *loadThumbnailFromSlot(const char *target, int slot);
+
 	bool loadInfosFromSlot(int slot, InfoStuff *stuff);
 
 protected:
-	Graphics::Surface *loadThumbnail(Common::SeekableReadStream *file);
-
 	void saveInfos(Common::WriteStream* file);
 	bool loadInfos(Common::SeekableReadStream *file, InfoStuff *stuff);
 
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