label: add relative values for font_size

src/config/ConfigDataValues.hpp

@@ -14,6 +14,7 @@ enum eConfigValueDataTypes {
     CVD_TYPE_INVALID  = -1,
     CVD_TYPE_LAYOUT   = 0,
     CVD_TYPE_GRADIENT = 1,
+    CVD_TYPE_FONT_SIZE = 2,
 };
 
 class ICustomConfigValueData {
@@ -131,3 +132,57 @@ class CGradientValueData : public ICustomConfigValueData {
         return P;
     }
 };
+
+enum eFontRelativeTypes {
+    FR_TYPE_ABSOLUTE = 0,
+    FR_TYPE_VIEW_WIDTH = 1,    
+    FR_TYPE_VIEW_HEIGHT = 2,    
+};
+
+class CFontSizeValueData : public ICustomConfigValueData {
+public:
+    CFontSizeValueData() {}
+    virtual ~CFontSizeValueData() {};
+
+    virtual eConfigValueDataTypes getDataType() {
+        return CVD_TYPE_FONT_SIZE;
+    }
+
+    static CFontSizeValueData* fromAnyPv(const std::any& v) {
+        RASSERT(v.type() == typeid(void*), "Invalid config value type");
+        const auto P = (CFontSizeValueData*)std::any_cast<void*>(v);
+        RASSERT(P, "Empty config value");
+        return P;
+    }
+
+    virtual std::string toString() {
+        return std::format("{}{}", m_size, valueSuffix());
+    }
+
+    const char *valueSuffix() {
+        switch (m_relativeTo) {
+            case FR_TYPE_VIEW_WIDTH:
+                return "vw";
+            case FR_TYPE_VIEW_HEIGHT:
+                return "vh";
+            case FR_TYPE_ABSOLUTE:
+            default:
+                return "px";
+        }
+    }
+
+    int getAbsolute(const Hyprutils::Math::Vector2D& viewport) {
+        switch (m_relativeTo) {
+            case FR_TYPE_VIEW_WIDTH:
+                return std::round((m_size / 100) * viewport.x);
+            case FR_TYPE_VIEW_HEIGHT:
+                return std::round((m_size / 100) * viewport.y);
+            case FR_TYPE_ABSOLUTE:
+            default:
+                return std::round(m_size);
+        }
+    }
+
+    float m_size;
+    eFontRelativeTypes m_relativeTo = FR_TYPE_ABSOLUTE;
+};

src/config/ConfigManager.cpp

@@ -95,11 +95,41 @@ static Hyprlang::CParseResult configHandleLayoutOption(const char* v, void** dat
     return result;
 }
 
+static Hyprlang::CParseResult configHandleFontSizeOption(const char* v, void** data) {
+    const std::string      VALUE = v;
+    Hyprlang::CParseResult result;
+    
+    if (!*data)
+        *data = new CFontSizeValueData();
+
+    const auto DATA  = (CFontSizeValueData*)(*data);
+
+    std::string stripped;
+    if (VALUE.ends_with("vw")) {
+        DATA->m_relativeTo = FR_TYPE_VIEW_WIDTH;
+        stripped = VALUE.substr(0, VALUE.size() - 3);
+    } else if (VALUE.ends_with("vh")) {
+        DATA->m_relativeTo = FR_TYPE_VIEW_HEIGHT;
+        stripped = VALUE.substr(0, VALUE.size() - 3);
+    } else {
+        stripped = VALUE;
+    }
+
+    DATA->m_size = std::stof(VALUE);
+
+    return result;
+}
+
 static void configHandleLayoutOptionDestroy(void** data) {
     if (*data)
         delete reinterpret_cast<CLayoutValueData*>(*data);
 }
 
+static void configHandleFontSizeOptionDestroy(void** data) {
+    if (*data)
+        delete reinterpret_cast<CFontSizeValueData*>(*data);
+}
+
 static Hyprlang::CParseResult configHandleGradientSet(const char* VALUE, void** data) {
     const std::string V = VALUE;
 
@@ -203,6 +233,10 @@ inline static constexpr auto LAYOUTCONFIG = [](const char* default_value) -> Hyp
     return Hyprlang::CUSTOMTYPE{&configHandleLayoutOption, configHandleLayoutOptionDestroy, default_value};
 };
 
+inline static constexpr auto FONTSIZECONFIG = [](const char* default_value) -> Hyprlang::CUSTOMTYPE {
+    return Hyprlang::CUSTOMTYPE{&configHandleFontSizeOption, configHandleFontSizeOptionDestroy, default_value};
+};
+
 void CConfigManager::init() {
 
 #define SHADOWABLE(name)                                                                                                                                                           \
@@ -312,7 +346,7 @@ void CConfigManager::init() {
     m_config.addSpecialConfigValue("label", "monitor", Hyprlang::STRING{""});
     m_config.addSpecialConfigValue("label", "position", LAYOUTCONFIG("0,0"));
     m_config.addSpecialConfigValue("label", "color", Hyprlang::INT{0xFFFFFFFF});
-    m_config.addSpecialConfigValue("label", "font_size", Hyprlang::INT{16});
+    m_config.addSpecialConfigValue("label", "font_size", FONTSIZECONFIG("16"));
     m_config.addSpecialConfigValue("label", "text", Hyprlang::STRING{"Sample Text"});
     m_config.addSpecialConfigValue("label", "font_family", Hyprlang::STRING{"Sans"});
     m_config.addSpecialConfigValue("label", "halign", Hyprlang::STRING{"none"});

src/renderer/widgets/Label.cpp

@@ -82,8 +82,8 @@ CLabel::CLabel(const Vector2D& viewport_, const std::unordered_map<std::string,
 
         std::string textAlign  = std::any_cast<Hyprlang::STRING>(props.at("text_align"));
         std::string fontFamily = std::any_cast<Hyprlang::STRING>(props.at("font_family"));
-        CHyprColor      labelColor = std::any_cast<Hyprlang::INT>(props.at("color"));
-        int         fontSize   = std::any_cast<Hyprlang::INT>(props.at("font_size"));
+        CHyprColor  labelColor = std::any_cast<Hyprlang::INT>(props.at("color"));
+        int         fontSize   = CFontSizeValueData::fromAnyPv(props.at("font_size"))->getAbsolute(viewport_);
 
         label = formatString(labelPreFormat);