fadein and prep for fadeout

src/Compositor.cpp

@@ -230,7 +230,7 @@ SMonitor* CCompositor::getMonitorFromVector(const Vector2D& point) {
 }
 
 void CCompositor::removeWindowFromVectorSafe(CWindow* pWindow) {
-    if (windowExists(pWindow))
+    if (windowExists(pWindow) && !pWindow->m_bFadingOut)
         m_lWindows.remove(*pWindow);
 }
 
@@ -553,3 +553,14 @@ void CCompositor::moveWindowToTop(CWindow* pWindow) {
         }
     }
 }
+
+void CCompositor::cleanupWindows() {
+    for (auto& w : m_lWindowsFadingOut) {
+        if (!w->m_bFadingOut || w->m_fAlpha == 0.f) {
+            m_lWindows.remove(*w);
+            m_lWindowsFadingOut.remove(w);
+            Debug::log(LOG, "Cleanup: cleaned up a window");
+            return;
+        }
+    }
+}

src/Compositor.hpp

@@ -58,6 +58,7 @@ public:
     std::list<SXDGPopup>    m_lXDGPopups;
     std::list<SWorkspace>   m_lWorkspaces;
     std::list<SSubsurface>  m_lSubsurfaces;
+    std::list<CWindow*>     m_lWindowsFadingOut;
 
     void                    startCompositor(); 
 
@@ -97,6 +98,7 @@ public:
     bool                    doesSeatAcceptInput(wlr_surface*);
     bool                    isWindowActive(CWindow*);
     void                    moveWindowToTop(CWindow*);
+    void                    cleanupWindows();
 
 private:
     void                    initAllSignals();

src/Window.hpp

@@ -68,6 +68,10 @@ public:
     // Animated border
     CColor          m_cRealBorderColor = CColor(0,0,0,0);
 
+    // Fade in-out
+    float           m_fAlpha = 0.f;
+    bool            m_bFadingOut = false;
+
 
     // For the list lookup
     bool operator==(const CWindow& rhs) {

src/events/Monitors.cpp

@@ -104,6 +104,7 @@ void Events::listener_monitorFrame(void* owner, void* data) {
     if (PMONITOR->ID == 0) {
         g_pCompositor->sanityCheckWorkspaces();
         g_pAnimationManager->tick();
+        g_pCompositor->cleanupWindows();
     }
 
     timespec now;

src/events/Windows.cpp

@@ -191,6 +191,10 @@ void Events::listener_unmapWindow(void* owner, void* data) {
     SubsurfaceTree::destroySurfaceTree(PWINDOW->m_pSurfaceTree);
     
     PWINDOW->m_pSurfaceTree = nullptr;
+
+    PWINDOW->m_bFadingOut = true;
+
+    g_pCompositor->m_lWindowsFadingOut.push_back(PWINDOW);
 }
 
 void Events::listener_commitWindow(void* owner, void* data) {

src/helpers/WLClasses.hpp

@@ -42,6 +42,9 @@ struct SRenderData {
 
     // for rounding
     bool dontRound = true;
+
+    // for fade
+    float fadeAlpha = 255.f;
 };
 
 struct SKeyboard {

src/layout/DwindleLayout.cpp

@@ -259,6 +259,10 @@ void CHyprDwindleLayout::onWindowRemoved(CWindow* pWindow) {
 
     m_lDwindleNodesData.remove(*PPARENT);
     m_lDwindleNodesData.remove(*PNODE);
+
+    // jump back like it jumps in
+    pWindow->m_vEffectivePosition = pWindow->m_vEffectivePosition + ((pWindow->m_vEffectiveSize - Vector2D(5, 5)) * 0.5f);
+    pWindow->m_vEffectiveSize = Vector2D(5, 5);
 }
 
 void CHyprDwindleLayout::recalculateMonitor(const int& monid) {

src/managers/AnimationManager.cpp

@@ -10,18 +10,43 @@ void CAnimationManager::tick() {
 
     const bool WINDOWSENABLED   = g_pConfigManager->getInt("animations:windows") && !animationsDisabled;
     const bool BORDERSENABLED   = g_pConfigManager->getInt("animations:borders") && !animationsDisabled;
-  //  const bool FADEENABLED      = g_pConfigManager->getInt("animations:fadein") && !animationsDisabled;
+    const bool FADEENABLED      = g_pConfigManager->getInt("animations:fadein") && !animationsDisabled;
     const float ANIMSPEED       = g_pConfigManager->getFloat("animations:speed");
 
     // Process speeds
     const float WINDOWSPEED     = g_pConfigManager->getFloat("animations:windows_speed") == 0 ? ANIMSPEED : g_pConfigManager->getFloat("animations:windows_speed");
     const float BORDERSPEED     = g_pConfigManager->getFloat("animations:borders_speed") == 0 ? ANIMSPEED : g_pConfigManager->getFloat("animations:borders_speed");
+    const float FADESPEED       = g_pConfigManager->getFloat("animations:fadein_speed")  == 0 ? ANIMSPEED : g_pConfigManager->getFloat("animations:fadein_speed");
 
     const auto BORDERACTIVECOL  = CColor(g_pConfigManager->getInt("general:col.active_border"));
     const auto BORDERINACTIVECOL = CColor(g_pConfigManager->getInt("general:col.inactive_border"));
 
     for (auto& w : g_pCompositor->m_lWindows) {
 
+        // process fadeinout
+        if (FADEENABLED) {
+            const auto GOALALPHA = w.m_bIsMapped ? 255.f : 0.f;
+            w.m_bFadingOut = false;
+
+            if (!deltazero(w.m_fAlpha, GOALALPHA)) {
+                if (deltaSmallToFlip(w.m_fAlpha, GOALALPHA)) {
+                    w.m_fAlpha = GOALALPHA;
+                } else {
+                    if (w.m_fAlpha > GOALALPHA)
+                        w.m_bFadingOut = true;
+                    w.m_fAlpha = parabolic(w.m_fAlpha, GOALALPHA, FADESPEED);
+                }
+            }
+
+        } else {
+            if (w.m_bIsMapped)
+                w.m_fAlpha = 255.f;
+            else {
+                w.m_fAlpha = 0.f;
+                w.m_bFadingOut = false;
+            }
+        }
+
         // process the borders
         const auto& COLOR = g_pCompositor->isWindowActive(&w) ? BORDERACTIVECOL : BORDERINACTIVECOL;
 

src/managers/XWaylandManager.cpp

@@ -114,9 +114,6 @@ void CHyprXWaylandManager::sendCloseWindow(CWindow* pWindow) {
     } else {
         wlr_xdg_toplevel_send_close(pWindow->m_uSurface.xdg->toplevel);
     }
-
-    g_pLayoutManager->getCurrentLayout()->onWindowRemoved(pWindow);
-    g_pCompositor->removeWindowFromVectorSafe(pWindow);
 }
 
 void CHyprXWaylandManager::setWindowSize(CWindow* pWindow, const Vector2D& size) {

src/render/Renderer.cpp

@@ -31,7 +31,7 @@ void renderSurface(struct wlr_surface* surface, int x, int y, void* data) {
     float matrix[9];
     wlr_matrix_project_box(matrix, &windowBox, TRANSFORM, 0, RDATA->output->transform_matrix);
 
-    g_pHyprOpenGL->renderTexture(TEXTURE, matrix, 255.f, RDATA->dontRound ? 0 : g_pConfigManager->getInt("decoration:rounding"));  // TODO: fadeinout
+    g_pHyprOpenGL->renderTexture(TEXTURE, matrix, RDATA->fadeAlpha, RDATA->dontRound ? 0 : g_pConfigManager->getInt("decoration:rounding"));  // TODO: fadeinout
 
     wlr_surface_send_frame_done(surface, RDATA->when);
 
@@ -88,12 +88,13 @@ void CHyprRenderer::renderWindow(CWindow* pWindow, SMonitor* pMonitor, timespec*
     renderdata.w = pWindow->m_vRealSize.x;
     renderdata.h = pWindow->m_vRealSize.y;
     renderdata.dontRound = false;
+    renderdata.fadeAlpha = pWindow->m_fAlpha;
 
     wlr_surface_for_each_surface(g_pXWaylandManager->getWindowSurface(pWindow), renderSurface, &renderdata);
 
     // border
     if (decorate && !pWindow->m_bX11DoesntWantBorders)
-        drawBorderForWindow(pWindow, pMonitor);
+        drawBorderForWindow(pWindow, pMonitor, pWindow->m_fAlpha);
 
     if (pWindow->m_bIsX11) {
         if (pWindow->m_uSurface.xwayland->surface) {
@@ -394,13 +395,14 @@ void CHyprRenderer::arrangeLayersForMonitor(const int& monitor) {
     Debug::log(LOG, "Monitor %s layers arranged: reserved: %f %f %f %f", PMONITOR->szName.c_str(), PMONITOR->vecReservedTopLeft.x, PMONITOR->vecReservedTopLeft.y, PMONITOR->vecReservedBottomRight.x, PMONITOR->vecReservedBottomRight.y);
 }
 
-void CHyprRenderer::drawBorderForWindow(CWindow* pWindow, SMonitor* pMonitor) {
+void CHyprRenderer::drawBorderForWindow(CWindow* pWindow, SMonitor* pMonitor, float alpha) {
     const auto BORDERSIZE = g_pConfigManager->getInt("general:border_size");
 
     if (BORDERSIZE < 1)
         return;
 
-    const auto BORDERCOL = pWindow->m_cRealBorderColor;
+    auto BORDERCOL = pWindow->m_cRealBorderColor;
+    BORDERCOL.a *= (alpha / 255.f);
 
     Vector2D correctPos = pWindow->m_vRealPosition - pMonitor->vecPosition;
     Vector2D correctSize = pWindow->m_vRealSize;

src/render/Renderer.hpp

@@ -16,7 +16,7 @@ public:
 
 private:
     void                arrangeLayerArray(SMonitor*, const std::list<SLayerSurface*>&, bool, wlr_box*);
-    void                drawBorderForWindow(CWindow*, SMonitor*);
+    void                drawBorderForWindow(CWindow*, SMonitor*, float a = 255.f);
     void                renderWorkspaceWithFullscreenWindow(SMonitor*, SWorkspace*, timespec*);
     void                renderWindow(CWindow*, SMonitor*, timespec*, bool);
     void                renderDragIcon(SMonitor*, timespec*);