refactor: rename PIP_NO_\* to PIP_HAS_\* with inverted logic

All feature flags now use positive naming (enabled by default):
- PIP_HAS_FILESYSTEM, PIP_HAS_THREADS, PIP_HAS_SOCKET
- PIP_HAS_PROCESS, PIP_HAS_DYNLIB, PIP_HAS_FFT, PIP_HAS_SERIAL

Preprocessor guards inverted:
- #ifndef PIP_NO_X → #ifdef PIP_HAS_X
- #ifdef PIP_NO_X → #ifndef PIP_HAS_X

CMake options default ON instead of OFF.
Platform blocks set flags OFF to disable features.

85 files transformed via Python script + 2 manual fixes.

libs/main/system/pihidevice.cpp

@@ -3,7 +3,7 @@
 #include "piliterals_string.h"
 #include "piliterals_time.h"
 
-#ifndef PIP_NO_THREADS
+#ifdef PIP_HAS_THREADS
 #  ifndef WINDOWS
 #	include "pidir.h"
 #	include "pifile.h"
@@ -674,4 +674,4 @@ PIHIDeviceInfo PIHIDevice::findDevice(const PIString & name) {
 	return PIHIDeviceInfo();
 }
 
-#endif // PIP_NO_THREADS
+#endif // PIP_HAS_THREADS

libs/main/system/pihidevice.h

@@ -169,7 +169,7 @@ PIP_EXPORT PICout operator<<(PICout s, const PIHIDeviceInfo & v);
 //! \~english Provides access to HID (Human Interface Device) devices such as game controllers, joysticks, and other input devices.
 //! \~russian Предоставляет доступ к HID (Human Interface Device) устройствам, таким как геймконтроллеры, джойстики и другие устройства
 //! ввода.
-#ifndef PIP_NO_THREADS
+#ifdef PIP_HAS_THREADS
 class PIP_EXPORT PIHIDevice: public PIThread {
 	PIOBJECT_SUBCLASS(PIHIDevice, PIThread)
 
@@ -271,7 +271,7 @@ private:
 	PIMap<int, int> prev_buttons, cur_buttons;
 	float dead_zone = 0.f;
 };
-#endif // PIP_NO_THREADS
+#endif // PIP_HAS_THREADS
 
 
 #endif

libs/main/system/pilibrary.cpp

@@ -17,7 +17,7 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef PIP_NO_DYNLIB
+#ifdef PIP_HAS_DYNLIB
 
 #  include "pilibrary.h"
 
@@ -233,4 +233,4 @@ void PILibrary::getLastError() {
 #  endif
 }
 
-#endif // PIP_NO_DYNLIB
+#endif // PIP_HAS_DYNLIB

libs/main/system/pilibrary.h

@@ -26,7 +26,7 @@
 #ifndef PILIBRARY_H
 #define PILIBRARY_H
 
-#ifndef PIP_NO_DYNLIB
+#ifdef PIP_HAS_DYNLIB
 
 #  include "pistring.h"
 
@@ -82,5 +82,5 @@ private:
 	PIString libpath, liberror;
 };
 
-#endif // PIP_NO_DYNLIB
+#endif // PIP_HAS_DYNLIB
 #endif // PILIBRARY_H

libs/main/system/piplugin.cpp

@@ -17,7 +17,7 @@
     along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef PIP_NO_DYNLIB
+#ifdef PIP_HAS_DYNLIB
 
 #  include "piplugin.h"
 
@@ -493,4 +493,4 @@ PIString PIPluginLoader::libExtension() {
 }
 
 
-#endif // PIP_NO_DYNLIB
+#endif // PIP_HAS_DYNLIB

libs/main/system/piplugin.h

@@ -28,7 +28,7 @@
 #ifndef PIPLUGIN_H
 #define PIPLUGIN_H
 
-#ifndef PIP_NO_DYNLIB
+#ifdef PIP_HAS_DYNLIB
 
 #  include "pilibrary.h"
 #  include "pistringlist.h"
@@ -298,5 +298,5 @@ private:
 };
 
 
-#endif // PIP_NO_DYNLIB
+#endif // PIP_HAS_DYNLIB
 #endif // PIPLUGIN_H

libs/main/system/piprocess.cpp

@@ -18,7 +18,7 @@
 */
 
 #include "pitime.h"
-#ifndef PIP_NO_PROCESS
+#ifdef PIP_HAS_PROCESS
 
 #  include "piincludes_p.h"
 #  include "piliterals_bytes.h"
@@ -516,4 +516,4 @@ PIString PIProcess::getEnvironmentVariable(const PIString & variable) {
 	return PIString();
 }
 
-#endif // PIP_NO_PROCESS
+#endif // PIP_HAS_PROCESS

libs/main/system/piprocess.h

@@ -26,7 +26,7 @@
 #ifndef PIPROCESS_H
 #define PIPROCESS_H
 
-#ifndef PIP_NO_PROCESS
+#ifdef PIP_HAS_PROCESS
 
 #  include "pithread.h"
 
@@ -258,5 +258,5 @@ private:
 	std::atomic_bool exec_finished;
 };
 
-#endif // PIP_NO_PROCESS
+#endif // PIP_HAS_PROCESS
 #endif // PIPROCESS_H

libs/main/system/pisysteminfo.cpp

@@ -207,7 +207,7 @@ PIVector<PISystemInfo::MountInfo> PISystemInfo::mountInfo(bool ignore_cache) {
 PIString confDir() {
 	return
 #ifdef WINDOWS
-#  ifndef PIP_NO_FILESYSTEM
+#  ifdef PIP_HAS_FILESYSTEM
 		PIDir::home().path() + "/AppData/Local"
 #  else
 		""
@@ -215,7 +215,7 @@ PIString confDir() {
 #elif defined(ANDROID)
 		""
 #else
-#  ifndef PIP_NO_FILESYSTEM
+#  ifdef PIP_HAS_FILESYSTEM
 		PIDir::home().path() + "/.config"
 #  else
 		""
@@ -242,7 +242,7 @@ PIString PISystemInfo::machineKey() {
 		PISystemInfo * si = instance();
 		PIByteArray salt;
 		PIString conf = confDir() + "/.pip_machine_salt";
-#ifndef PIP_NO_FILESYSTEM
+#ifdef PIP_HAS_FILESYSTEM
 		if (PIFile::isExists(conf)) salt = PIFile::readAll(conf);
 		if (salt.size_s() != SALT_SIZE) {
 			salt = generateSalt();

libs/main/system/pisystemtests.cpp

@@ -19,9 +19,9 @@
 
 #include "pisystemtests.h"
 
-#ifndef PIP_NO_FILESYSTEM
+#ifdef PIP_HAS_FILESYSTEM
 #  include "piconfig.h"
-#endif // !PIP_NO_FILESYSTEM
+#endif // PIP_HAS_FILESYSTEM
 
 
 namespace PISystemTests {
@@ -35,10 +35,10 @@ PISystemTestReader pisystestreader;
 
 
 PISystemTests::PISystemTestReader::PISystemTestReader() {
-#if !defined(WINDOWS) && !defined(PIP_NO_FILESYSTEM)
+#if !defined(WINDOWS) && defined(PIP_HAS_FILESYSTEM)
 	PIConfig conf(PIStringAscii("/etc/pip.conf"), PIIODevice::ReadOnly);
 	time_resolution_ns = conf.getValue(PIStringAscii("time_resolution_ns"), 1).toLong();
 	time_elapsed_ns    = conf.getValue(PIStringAscii("time_elapsed_ns"), 0).toLong();
 	usleep_offset_us   = conf.getValue(PIStringAscii("usleep_offset_us"), 60).toLong();
-#endif // !WINDOWS && !PIP_NO_FILESYSTEM
+#endif // !WINDOWS && PIP_HAS_FILESYSTEM
 }