initial checkin

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1423 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/add-ons/translators/tgatranslator/TGATranslatorSettings.cpp

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+/*****************************************************************************/
+// TGATranslatorSettings
+// TGATranslatorSettings.cpp
+//
+// The description goes here.
+//
+//
+// Copyright (c) 2002 OpenBeOS Project
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+// and/or sell copies of the Software, and to permit persons to whom the 
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included 
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+/*****************************************************************************/
+
+#include <File.h>
+#include <FindDirectory.h>
+#include <TranslatorFormats.h>
+	// for B_TRANSLATOR_EXT_*
+#include "TGATranslatorSettings.h"
+
+TGATranslatorSettings::TGATranslatorSettings()
+	: flock("TGA Settings Lock")
+{
+	if (find_directory(B_USER_SETTINGS_DIRECTORY, &fsettingsPath))
+		fsettingsPath.SetTo("/tmp");
+	fsettingsPath.Append(TGA_SETTINGS_FILENAME);
+	
+	frefCount = 1;
+	
+	// Default Settings
+	// (Used when loading from the settings file or from
+	// a BMessage fails)
+	fmsgSettings.AddBool(B_TRANSLATOR_EXT_HEADER_ONLY, false);
+	fmsgSettings.AddBool(B_TRANSLATOR_EXT_DATA_ONLY, false);
+	fmsgSettings.AddBool(TGA_SETTING_RLE, false);
+		// RLE compression is off by default
+}
+
+TGATranslatorSettings *
+TGATranslatorSettings::Acquire()
+{
+	TGATranslatorSettings *psettings = NULL;
+	
+	flock.Lock();
+	frefCount++;
+	psettings = this;
+	flock.Unlock();
+	
+	return psettings;
+}
+
+TGATranslatorSettings *
+TGATranslatorSettings::Release()
+{
+	TGATranslatorSettings *psettings = NULL;
+	
+	flock.Lock();
+	frefCount--;
+	if (frefCount > 0) {
+		psettings = this;
+		flock.Unlock();
+	} else
+		delete this;
+			// delete this object and
+			// release locks
+	
+	return psettings;	
+}
+
+TGATranslatorSettings::~TGATranslatorSettings()
+{
+}
+	
+status_t
+TGATranslatorSettings::LoadSettings()
+{
+	status_t result;
+	
+	flock.Lock();
+	
+	BFile settingsFile;
+	result = settingsFile.SetTo(fsettingsPath.Path(), B_READ_ONLY);
+	if (result == B_OK) {
+		BMessage msg;
+		result = msg.Unflatten(&settingsFile);
+		if (result == B_OK)
+			result = LoadSettings(&msg);
+	}
+	
+	flock.Unlock();
+	
+	return result;
+}
+
+status_t
+TGATranslatorSettings::LoadSettings(BMessage *pmsg)
+{
+	status_t result = B_BAD_VALUE;
+	
+	if (pmsg) {
+		// Make certain that no TGA settings
+		// are missing from the file
+		bool bheaderOnly, bdataOnly, brle;
+		
+		flock.Lock();
+		result = pmsg->FindBool(B_TRANSLATOR_EXT_HEADER_ONLY, &bheaderOnly);
+		if (result != B_OK)
+			bheaderOnly = SetGetHeaderOnly();
+			
+		result = pmsg->FindBool(B_TRANSLATOR_EXT_DATA_ONLY, &bdataOnly);
+		if (result != B_OK)
+			bdataOnly = SetGetDataOnly();
+			
+		result = pmsg->FindBool(TGA_SETTING_RLE, &brle);
+		if (result != B_OK)
+			brle = SetGetRLE();
+				
+		if (bheaderOnly && bdataOnly)
+			// "write header only" and "write data only"
+			// are mutually exclusive
+			result = B_BAD_VALUE;
+		else {
+			fmsgSettings.ReplaceBool(
+				B_TRANSLATOR_EXT_HEADER_ONLY, bheaderOnly);
+				
+			fmsgSettings.ReplaceBool(
+				B_TRANSLATOR_EXT_DATA_ONLY, bdataOnly);
+				
+			fmsgSettings.ReplaceBool(TGA_SETTING_RLE, brle);
+			
+			result = B_OK;
+		}
+		flock.Unlock();
+	}
+	
+	return result;
+}
+
+status_t
+TGATranslatorSettings::SaveSettings()
+{
+	status_t result;
+	
+	flock.Lock();
+	
+	BFile settingsFile;
+	result = settingsFile.SetTo(fsettingsPath.Path(),
+		B_WRITE_ONLY | B_CREATE_FILE | B_ERASE_FILE);
+	if (result == B_OK)
+		result = fmsgSettings.Flatten(&settingsFile);
+		
+	flock.Unlock();
+	
+	return result;
+}
+
+status_t
+TGATranslatorSettings::GetConfigurationMessage(BMessage *pmsg)
+{
+	status_t result = B_BAD_VALUE;
+	
+	if (pmsg) {
+		const char *kNames[] = {
+			B_TRANSLATOR_EXT_HEADER_ONLY,
+			B_TRANSLATOR_EXT_DATA_ONLY,
+			TGA_SETTING_RLE
+		};
+		const int32 klen = sizeof(kNames) / sizeof(const char *);
+		int32 i;
+		for (i = 0; i < klen; i++) {
+			result = pmsg->RemoveName(kNames[i]);
+			if (result != B_OK && result != B_NAME_NOT_FOUND)
+				break;
+		}
+		if (i == klen) {
+			flock.Lock();
+			
+			pmsg->AddBool(B_TRANSLATOR_EXT_HEADER_ONLY,
+				SetGetHeaderOnly());
+				
+			pmsg->AddBool(B_TRANSLATOR_EXT_DATA_ONLY,
+				SetGetDataOnly());
+				
+			pmsg->AddBool(TGA_SETTING_RLE,
+				SetGetRLE());
+				
+			flock.Unlock();
+			result = B_OK;
+		}
+	}
+	
+	return result;
+}
+
+bool
+TGATranslatorSettings::SetGetHeaderOnly(bool *pbHeaderOnly)
+{
+	bool bprevValue;
+	
+	flock.Lock();
+	fmsgSettings.FindBool(B_TRANSLATOR_EXT_HEADER_ONLY, &bprevValue);
+	if (pbHeaderOnly)
+		fmsgSettings.ReplaceBool(B_TRANSLATOR_EXT_HEADER_ONLY, *pbHeaderOnly);
+	flock.Unlock();
+	
+	return bprevValue;
+}
+
+bool
+TGATranslatorSettings::SetGetDataOnly(bool *pbDataOnly)
+{
+	bool bprevValue;
+	
+	flock.Lock();
+	fmsgSettings.FindBool(B_TRANSLATOR_EXT_DATA_ONLY, &bprevValue);
+	if (pbDataOnly)
+		fmsgSettings.ReplaceBool(B_TRANSLATOR_EXT_DATA_ONLY, *pbDataOnly);
+	flock.Unlock();
+	
+	return bprevValue;
+}
+	
+bool
+TGATranslatorSettings::SetGetRLE(bool *pbRLE)
+{
+	bool bprevValue;
+	
+	flock.Lock();
+	fmsgSettings.FindBool(TGA_SETTING_RLE, &bprevValue);
+	if (pbRLE)
+		fmsgSettings.ReplaceBool(TGA_SETTING_RLE, *pbRLE);
+	flock.Unlock();
+	
+	return bprevValue;
+}

src/add-ons/translators/tgatranslator/TGATranslatorSettings.h

@@ -0,0 +1,70 @@
+/*****************************************************************************/
+// TGATranslatorSettings
+// TGATranslatorSettings.h
+//
+// The description goes here.
+//
+//
+// Copyright (c) 2002 OpenBeOS Project
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the "Software"),
+// to deal in the Software without restriction, including without limitation
+// the rights to use, copy, modify, merge, publish, distribute, sublicense, 
+// and/or sell copies of the Software, and to permit persons to whom the 
+// Software is furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included 
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 
+// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+// DEALINGS IN THE SOFTWARE.
+/*****************************************************************************/
+
+#ifndef TGA_TRANSLATOR_SETTINGS_H
+#define TGA_TRANSLATOR_SETTINGS_H
+
+#include <Locker.h>
+#include <Path.h>
+#include <Message.h>
+
+#define TGA_SETTINGS_FILENAME "TGATranslator_Settings"
+
+// TGA Translator Settings
+#define TGA_SETTING_RLE "tga /rle"
+
+class TGATranslatorSettings {
+public:
+	TGATranslatorSettings();
+	
+	TGATranslatorSettings *Acquire();
+	TGATranslatorSettings *Release();
+	
+	status_t LoadSettings();
+	status_t LoadSettings(BMessage *pmsg);
+	status_t SaveSettings();
+	status_t GetConfigurationMessage(BMessage *pmsg);
+	
+	bool SetGetHeaderOnly(bool *pbHeaderOnly = NULL);
+	bool SetGetDataOnly(bool *pbDataOnly = NULL);
+	bool SetGetRLE(bool *pbRLE = NULL);
+	
+private:
+	~TGATranslatorSettings();
+		// private so that Release() must be used
+		// to delete the object
+	
+	BLocker flock;
+	int32 frefCount;
+	BPath fsettingsPath;
+	
+	BMessage fmsgSettings;
+		// the actual settings
+};
+
+#endif // #ifndef TGA_TRANSLATOR_SETTTINGS_H