added drop shadows

src/render/decorations/CHyprDropShadowDecoration.cpp

@@ -0,0 +1,66 @@
+#include "CHyprDropShadowDecoration.hpp"
+
+#include "../../Compositor.hpp"
+
+CHyprDropShadowDecoration::CHyprDropShadowDecoration(CWindow* pWindow) {
+    m_pWindow = pWindow;
+}
+
+CHyprDropShadowDecoration::~CHyprDropShadowDecoration() {
+    updateWindow(m_pWindow);
+}
+
+SWindowDecorationExtents CHyprDropShadowDecoration::getWindowDecorationExtents() {
+    static auto *const PSHADOWS = &g_pConfigManager->getConfigValuePtr("decoration:drop_shadow")->intValue;
+
+    if (*PSHADOWS != 1)
+        return {{}, {}};
+
+    return m_seExtents;
+}
+
+eDecorationType CHyprDropShadowDecoration::getDecorationType() {
+    return DECORATION_SHADOW;
+}
+
+void CHyprDropShadowDecoration::damageEntire() {
+    static auto *const PSHADOWS = &g_pConfigManager->getConfigValuePtr("decoration:drop_shadow")->intValue;
+
+    if (*PSHADOWS != 1)
+        return; // disabled
+
+    wlr_box dm = {m_vLastWindowPos.x - m_seExtents.topLeft.x, m_vLastWindowPos.y - m_seExtents.topLeft.y, m_vLastWindowSize.x + m_seExtents.topLeft.x + m_seExtents.bottomRight.x, m_vLastWindowSize.y + m_seExtents.topLeft.y + m_seExtents.bottomRight.y};
+    g_pHyprRenderer->damageBox(&dm);
+}
+
+void CHyprDropShadowDecoration::updateWindow(CWindow* pWindow) {
+    damageEntire();
+}
+
+void CHyprDropShadowDecoration::draw(SMonitor* pMonitor) {
+
+    if (!g_pCompositor->windowValidMapped(m_pWindow))
+        return;
+
+    static auto *const PSHADOWS = &g_pConfigManager->getConfigValuePtr("decoration:drop_shadow")->intValue;
+    static auto *const PSHADOWSIZE = &g_pConfigManager->getConfigValuePtr("decoration:shadow_range")->intValue;
+    static auto *const PROUNDING = &g_pConfigManager->getConfigValuePtr("decoration:rounding")->intValue;
+
+    if (*PSHADOWS != 1)
+        return; // disabled
+
+    // update the extents if needed
+    if (*PSHADOWSIZE != m_seExtents.topLeft.x) 
+        m_seExtents = {{*PSHADOWSIZE + 2, *PSHADOWSIZE + 2}, {*PSHADOWSIZE + 2, *PSHADOWSIZE + 2}};
+
+    m_vLastWindowPos = m_pWindow->m_vRealPosition.vec();
+    m_vLastWindowSize = m_pWindow->m_vRealSize.vec();
+
+    // draw the shadow
+    wlr_box fullBox = {m_vLastWindowPos.x - m_seExtents.topLeft.x + 2, m_vLastWindowPos.y - m_seExtents.topLeft.y + 2, m_vLastWindowSize.x + m_seExtents.topLeft.x + m_seExtents.bottomRight.x - 4, m_vLastWindowSize.y + m_seExtents.topLeft.y + m_seExtents.bottomRight.y - 4};
+    
+    fullBox.x -= pMonitor->vecPosition.x;
+    fullBox.y -= pMonitor->vecPosition.y;
+    
+    g_pHyprOpenGL->renderRoundedShadow(&fullBox, *PROUNDING, *PSHADOWSIZE);
+}

src/render/decorations/CHyprDropShadowDecoration.hpp

@@ -0,0 +1,27 @@
+#pragma once
+
+#include "IHyprWindowDecoration.hpp"
+
+class CHyprDropShadowDecoration : public IHyprWindowDecoration {
+public:
+    CHyprDropShadowDecoration(CWindow*);
+    virtual ~CHyprDropShadowDecoration();
+
+    virtual SWindowDecorationExtents getWindowDecorationExtents();
+
+    virtual void draw(SMonitor*);
+
+    virtual eDecorationType getDecorationType();
+
+    virtual void updateWindow(CWindow*);
+
+    virtual void damageEntire();
+
+private:
+    SWindowDecorationExtents    m_seExtents;
+
+    CWindow*                    m_pWindow = nullptr;
+
+    Vector2D                    m_vLastWindowPos;
+    Vector2D                    m_vLastWindowSize;
+};

src/render/decorations/IHyprWindowDecoration.hpp

@@ -4,7 +4,8 @@
 
 enum eDecorationType {
     DECORATION_NONE = -1,
-    DECORATION_GROUPBAR
+    DECORATION_GROUPBAR,
+    DECORATION_SHADOW
 };
 
 struct SWindowDecorationExtents {