Various improvements considering the modern C++ practices

.clang-format

@@ -0,0 +1,114 @@
+---
+Language: Cpp
+Standard: Auto
+AccessModifierOffset: -4
+AlignAfterOpenBracket: DontAlign
+AlignArrayOfStructures: None
+AlignConsecutiveAssignments: None
+AlignConsecutiveBitFields: Consecutive
+AlignConsecutiveDeclarations: None
+AlignConsecutiveMacros: None
+AlignEscapedNewlines: Right
+AlignOperands: DontAlign
+AlignTrailingComments: true
+AllowAllArgumentsOnNextLine: false
+AllowAllConstructorInitializersOnNextLine: true
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: Empty
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortEnumsOnASingleLine: true
+AllowShortFunctionsOnASingleLine: All
+AllowShortIfStatementsOnASingleLine: Never
+AllowShortLambdasOnASingleLine: All
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: None
+AlwaysBreakAfterReturnType: None
+AlwaysBreakBeforeMultilineStrings: false
+AlwaysBreakTemplateDeclarations: MultiLine
+BinPackArguments: true
+BinPackParameters: true
+BitFieldColonSpacing: Both
+BreakAfterJavaFieldAnnotations: true
+BreakBeforeBinaryOperators: NonAssignment
+BreakBeforeConceptDeclarations: true
+BreakBeforeInheritanceComma: false
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializers: BeforeComma
+BreakConstructorInitializersBeforeComma: false
+BreakInheritanceList: BeforeColon
+BreakStringLiterals: true
+ColumnLimit: 0
+CompactNamespaces: true
+ConstructorInitializerAllOnOneLineOrOnePerLine: false
+ConstructorInitializerIndentWidth: 8
+ContinuationIndentWidth: 4
+DeriveLineEnding: true
+DerivePointerAlignment: false
+DisableFormat: false
+EmptyLineAfterAccessModifier: Never
+EmptyLineBeforeAccessModifier: LogicalBlock
+FixNamespaceComments: false
+IncludeBlocks: Preserve
+IncludeIsMainRegex: (Test)?$
+IncludeIsMainSourceRegex: ''
+IndentAccessModifiers: false
+IndentCaseBlocks: false
+IndentCaseLabels: true
+IndentExternBlock: AfterExternBlock
+IndentGotoLabels: true
+IndentPPDirectives: None
+IndentWidth: 4
+IndentWrappedFunctionNames: false
+InsertTrailingCommas: None
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: true
+LambdaBodyIndentation: Signature
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: All
+PPIndentWidth: -1
+PackConstructorInitializers: BinPack
+PenaltyBreakAssignment: 2
+PenaltyBreakBeforeFirstCallParameter: 19
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakOpenParenthesis: 0
+PenaltyBreakString: 1000
+PenaltyBreakTemplateDeclaration: 10
+PenaltyExcessCharacter: 1000000
+PenaltyIndentedWhitespace: 0
+PenaltyReturnTypeOnItsOwnLine: 60
+PointerAlignment: Left
+QualifierAlignment: Leave
+ReferenceAlignment: Pointer
+ReflowComments: true
+RemoveBracesLLVM: false
+SeparateDefinitionBlocks: Leave
+ShortNamespaceLines: 1
+SortIncludes: CaseSensitive
+SortJavaStaticImport: Before
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterLogicalNot: false
+SpaceAfterTemplateKeyword: true
+SpaceAroundPointerQualifiers: Default
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeCaseColon: false
+SpaceBeforeCtorInitializerColon: true
+SpaceBeforeInheritanceColon: true
+SpaceBeforeParens: ControlStatements
+SpaceBeforeRangeBasedForLoopColon: true
+SpaceBeforeSquareBrackets: false
+SpaceInEmptyBlock: true
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 1
+SpacesInAngles: Never
+SpacesInCStyleCastParentheses: false
+SpacesInConditionalStatement: false
+SpacesInContainerLiterals: true
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+TabWidth: 4
+UseCRLF: false
+UseTab: Never
+...

.clang-tidy

@@ -0,0 +1,6 @@
+---
+Checks: '-*,clang-diagnostic-*,bugprone-*,cert-*,misc-*,modernize-*,performance-*,readability-*,hicpp-exception-baseclass,hicpp-avoid-goto,-clang-diagnostic-address-of-packed-member,-cert-dcl16-c,-cert-dcl21-cpp,-cert-err58-cpp,-misc-unused-parameters,-misc-non-private-member-variables-in-classes,-modernize-avoid-c-arrays,-modernize-concat-nested-namespaces,-modernize-raw-string-literal,-modernize-use-default-member-init,-modernize-use-nodiscard,-modernize-use-override,-modernize-use-trailing-return-type,-readability-else-after-return,-readability-identifier-naming,-readability-implicit-bool-cast,-readability-implicit-bool-conversion,-readability-magic-numbers,-readability-named-parameter,-readability-qualified-auto,-readability-redundant-access-specifiers,-readability-redundant-member-init,-readability-uppercase-literal-suffix'
+WarningsAsErrors: '*'
+HeaderFilterRegex: ''
+FormatStyle: none
+...

.gitignore

@@ -12,6 +12,7 @@ _deps
 build/
 result
 /.vscode/
+/.idea
 
 *.o
 *-protocol.c
@@ -22,4 +23,4 @@ hyprctl/hyprctl
 
 gmon.out
 *.out
-*.tar.gz
+*.tar.gz

src/Hyprpaper.cpp

@@ -1,6 +1,6 @@
 #include "Hyprpaper.hpp"
 
-CHyprpaper::CHyprpaper() { }
+CHyprpaper::CHyprpaper() = default;
 
 void CHyprpaper::init() {
 
@@ -9,12 +9,11 @@ void CHyprpaper::init() {
     g_pConfigManager = std::make_unique<CConfigManager>();
     g_pIPCSocket = std::make_unique<CIPCSocket>();
 
-    m_sDisplay = (wl_display *)wl_display_connect(NULL);
+    m_sDisplay = (wl_display *)wl_display_connect(nullptr);
 
     if (!m_sDisplay) {
         Debug::log(CRIT, "No wayland compositor running!");
         exit(1);
-        return;
     }
 
     preloadAllWallpapersFromConfig();
@@ -35,7 +34,7 @@ void CHyprpaper::init() {
             m_bShouldExit = true;
         }).detach();
 
-        while (1) {  // we also tick every 1ms for socket and other shit's updates
+        while (true) {  // we also tick every 1ms for socket and other shit's updates
             tick(false);
 
             std::this_thread::sleep_for(std::chrono::milliseconds(1));
@@ -352,7 +351,7 @@ void CHyprpaper::createBuffer(SPoolBuffer* pBuffer, int32_t w, int32_t h, uint32
         exit(1);
     }
 
-    const auto DATA = mmap(NULL, SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, FD, 0);
+    const auto DATA = mmap(nullptr, SIZE, PROT_READ | PROT_WRITE, MAP_SHARED, FD, 0);
     const auto POOL = wl_shm_create_pool(g_pHyprpaper->m_sSHM, FD, SIZE);
     pBuffer->buffer = wl_shm_pool_create_buffer(POOL, 0, w, h, STRIDE, format);
     wl_shm_pool_destroy(POOL);
@@ -470,4 +469,4 @@ void CHyprpaper::renderWallpaperForMonitor(SMonitor* pMonitor) {
             }
         }
     }
-}
+}

src/Hyprpaper.hpp

@@ -60,4 +60,4 @@ private:
     bool        m_bShouldExit = false;
 };
 
-inline std::unique_ptr<CHyprpaper> g_pHyprpaper;
+inline std::unique_ptr<CHyprpaper> g_pHyprpaper;

src/config/ConfigManager.cpp

@@ -5,7 +5,7 @@ CConfigManager::CConfigManager() {
     // init the entire thing
 
     std::string configPath;
-    if (g_pHyprpaper->m_szExplicitConfigPath == "") {
+    if (g_pHyprpaper->m_szExplicitConfigPath.empty()) {
         const char *const ENVHOME = getenv("HOME");
         configPath = ENVHOME + (std::string) "/.config/hypr/hyprpaper.conf";
     }
@@ -19,7 +19,6 @@ CConfigManager::CConfigManager() {
     if (!ifs.good()) {
         Debug::log(CRIT, "Hyprpaper was not provided a config!");
         exit(1);
-        return; //jic
     }
 
     std::string line = "";
@@ -36,7 +35,7 @@ CConfigManager::CConfigManager() {
                 parseError += "Config error at line " + std::to_string(linenum) + ": Line parsing error.";
             }
 
-            if (parseError != "" && parseError.find("Config error at line") != 0) {
+            if (!parseError.empty() && parseError.find("Config error at line") != 0) {
                 parseError = "Config error at line " + std::to_string(linenum) + ": " + parseError;
             }
 
@@ -46,7 +45,7 @@ CConfigManager::CConfigManager() {
         ifs.close();
     }
 
-    if (parseError != "") {
+    if (!parseError.empty()) {
         Debug::log(CRIT, "Exiting because of config parse errors!\n%s", parseError.c_str());
         exit(1);
         return;

src/config/ConfigManager.hpp

@@ -11,7 +11,7 @@ public:
     std::deque<std::string> m_dRequestedPreloads;
 
 private:
-    std::string parseError = "";
+    std::string parseError;
 
     void parseLine(std::string&);
     std::string removeBeginEndSpacesTabs(std::string in);
@@ -24,4 +24,4 @@ private:
     friend class CIPCSocket;
 };
 
-inline std::unique_ptr<CConfigManager> g_pConfigManager;
+inline std::unique_ptr<CConfigManager> g_pConfigManager;

src/debug/Log.hpp

@@ -14,4 +14,4 @@ enum LogLevel {
 
 namespace Debug {
     void log(LogLevel level, const char* fmt, ...);
-};
+}

src/events/Events.hpp

@@ -26,4 +26,4 @@ namespace Events {
     inline const zwlr_layer_surface_v1_listener layersurfaceListener = { .configure = ls_configure };
 
     inline const struct wl_registry_listener registryListener = { .global = handleGlobal, .global_remove = handleGlobalRemove };
-};
+}

src/helpers/Jpeg.cpp

@@ -22,7 +22,7 @@ cairo_surface_t* JPEG::createSurfaceFromJPEG(const std::string& path) {
 
     void* imageRawData;
 
-    struct stat fileInfo;
+    struct stat fileInfo = {};
 
     const auto FD = open(path.c_str(), O_RDONLY);
 
@@ -36,8 +36,8 @@ cairo_surface_t* JPEG::createSurfaceFromJPEG(const std::string& path) {
 
     // now the JPEG is in the memory
 
-    jpeg_decompress_struct decompressStruct;
-    jpeg_error_mgr errorManager;
+    jpeg_decompress_struct decompressStruct = {};
+    jpeg_error_mgr errorManager = {};
 
     decompressStruct.err = jpeg_std_error(&errorManager);
     jpeg_create_decompress(&decompressStruct);
@@ -72,4 +72,4 @@ cairo_surface_t* JPEG::createSurfaceFromJPEG(const std::string& path) {
     jpeg_destroy_decompress(&decompressStruct);    
 
     return cairoSurface;
-}
+}

src/helpers/Vector2D.cpp

@@ -6,7 +6,7 @@ Vector2D::Vector2D(double xx, double yy) {
 }
 
 Vector2D::Vector2D() { x = 0; y = 0; }
-Vector2D::~Vector2D() {}
+Vector2D::~Vector2D() = default;
 
 double Vector2D::normalize() {
     // get max abs
@@ -18,6 +18,6 @@ double Vector2D::normalize() {
     return max;
 }
 
-Vector2D Vector2D::floor() {
-    return Vector2D((int)x, (int)y);
-}
+Vector2D Vector2D::floor() const {
+    return {static_cast<int>(x), static_cast<int>(y)};
+}

src/helpers/Vector2D.hpp

@@ -1,6 +1,6 @@
 #pragma once
 
-#include <math.h>
+#include <cmath>
 
 class Vector2D {
    public:
@@ -35,5 +35,5 @@ class Vector2D {
         return a.x != x || a.y != y;
     }
 
-    Vector2D floor();
-};
+    Vector2D floor() const;
+};

src/includes.hpp

@@ -4,12 +4,12 @@
 #include <deque>
 #include <iostream>
 #include <fstream>
-#include <string.h>
+#include <cstring>
 #include <string>
 
 #include <pthread.h>
 #include <cmath>
-#include <math.h>
+#include <cmath>
 
 #define class _class
 #define namespace _namespace
@@ -27,13 +27,13 @@ extern "C" {
 
 #include <GLES3/gl32.h>
 #include <GLES3/gl3ext.h>
-#include <assert.h>
+#include <cassert>
 #include <cairo.h>
 #include <cairo/cairo.h>
 #include <fcntl.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
 #include <sys/mman.h>
 #include <unistd.h>
 #include <wayland-client.h>

src/ipc/Socket.cpp

@@ -2,15 +2,15 @@
 #include "../Hyprpaper.hpp"
 
 #include <netinet/in.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/un.h>
 #include <unistd.h>
-#include <errno.h>
+#include <cerrno>
 
 void CIPCSocket::initialize() {
      std::thread([&]() {
@@ -40,7 +40,7 @@ void CIPCSocket::initialize() {
         // 10 max queued.
         listen(SOCKET, 10);
 
-        sockaddr_in clientAddress;
+        sockaddr_in clientAddress = {};
         socklen_t clientSize = sizeof(clientAddress);
 
         char readBuffer[1024] = {0};
@@ -104,7 +104,7 @@ bool CIPCSocket::mainThreadParseRequest() {
 
         g_pConfigManager->parseKeyword(copy.substr(0, copy.find_first_of(' ')), copy.substr(copy.find_first_of(' ') + 1));
 
-        if (g_pConfigManager->parseError != "") {
+        if (!g_pConfigManager->parseError.empty()) {
             m_szReply = g_pConfigManager->parseError;
             m_bReplyReady = true;
             m_bRequestReady = false;
@@ -123,4 +123,4 @@ bool CIPCSocket::mainThreadParseRequest() {
     m_bRequestReady = false;
 
     return true;
-}
+}

src/render/LayerSurface.cpp

@@ -10,7 +10,6 @@ CLayerSurface::CLayerSurface(SMonitor* pMonitor) {
     if (!pSurface) {
         Debug::log(CRIT, "The compositor did not allow hyprpaper a surface!");
         exit(1);
-        return;
     }
 
     const auto PINPUTREGION = wl_compositor_create_region(g_pHyprpaper->m_sCompositor);
@@ -18,7 +17,6 @@ CLayerSurface::CLayerSurface(SMonitor* pMonitor) {
     if (!PINPUTREGION) {
         Debug::log(CRIT, "The compositor did not allow hyprpaper a region!");
         exit(1);
-        return;
     }
 
     wl_surface_set_input_region(pSurface, PINPUTREGION);
@@ -28,7 +26,6 @@ CLayerSurface::CLayerSurface(SMonitor* pMonitor) {
     if (!pLayerSurface) {
         Debug::log(CRIT, "The compositor did not allow hyprpaper a layersurface!");
         exit(1);
-        return;
     }
 
     zwlr_layer_surface_v1_set_size(pLayerSurface, 0, 0);
@@ -47,4 +44,4 @@ CLayerSurface::~CLayerSurface() {
     zwlr_layer_surface_v1_destroy(pLayerSurface);
 
     wl_display_flush(g_pHyprpaper->m_sDisplay);
-}
+}

src/render/LayerSurface.hpp

@@ -6,13 +6,11 @@ struct SMonitor;
 
 class CLayerSurface {
 public:
-    CLayerSurface(SMonitor*);
+    explicit CLayerSurface(SMonitor*);
     ~CLayerSurface();
 
     SMonitor* m_pMonitor = nullptr;
 
     zwlr_layer_surface_v1* pLayerSurface = nullptr;
     wl_surface* pSurface = nullptr;
-
-    bool m_bCurrent = false;
-};
+};

src/render/WallpaperTarget.cpp

@@ -18,7 +18,6 @@ void CWallpaperTarget::create(const std::string& path) {
     } else {
         Debug::log(CRIT, "unrecognized image %s", path.c_str());
         exit(1);
-        return;
     }
 
     if (cairo_surface_status(CAIROSURFACE) != CAIRO_STATUS_SUCCESS) {
@@ -33,4 +32,4 @@ void CWallpaperTarget::create(const std::string& path) {
     Debug::log(LOG, "Preloaded target %s in %.2fms -> Pixel size: [%i, %i]", path.c_str(), MS, (int)m_vSize.x, (int)m_vSize.y);
 
     m_pCairoSurface = CAIROSURFACE;
-}
+}

src/render/WallpaperTarget.hpp

@@ -9,7 +9,6 @@ public:
     ~CWallpaperTarget();
     
     void        create(const std::string& path);
-    void        render();
 
     std::string m_szPath;
 
@@ -18,4 +17,4 @@ public:
     bool        m_bHasAlpha = true;
 
     cairo_surface_t* m_pCairoSurface;
-};
+};