From f892387b7020ce27dbcf370244e26e09c9ecc1e5 Mon Sep 17 00:00:00 2001
From: vaxerski <43317083+vaxerski@users.noreply.github.com>
Date: Mon, 1 Aug 2022 12:51:52 +0200
Subject: [PATCH] added dwindle:no_gaps_when_only

---
 src/Window.hpp               |  3 +++
 src/config/ConfigManager.cpp |  1 +
 src/layout/DwindleLayout.cpp | 20 +++++++++++++++++++-
 src/layout/DwindleLayout.hpp |  2 ++
 src/render/Renderer.cpp      |  2 +-
 5 files changed, 26 insertions(+), 2 deletions(-)

diff --git a/src/Window.hpp b/src/Window.hpp
index e63eba65..2514af14 100644
--- a/src/Window.hpp
+++ b/src/Window.hpp
@@ -10,6 +10,9 @@
 struct SWindowSpecialRenderData {
     float alpha = 1.f;
     float alphaInactive = -1.f; // -1 means unset
+
+    // set by the layout
+    bool rounding = true;
 };  
 
 struct SWindowAdditionalConfigData {
diff --git a/src/config/ConfigManager.cpp b/src/config/ConfigManager.cpp
index 61427e80..c6b8a634 100644
--- a/src/config/ConfigManager.cpp
+++ b/src/config/ConfigManager.cpp
@@ -87,6 +87,7 @@ void CConfigManager::setDefaultVars() {
     configValues["dwindle:preserve_split"].intValue = 0;
     configValues["dwindle:special_scale_factor"].floatValue = 0.8f;
     configValues["dwindle:split_width_multiplier"].floatValue = 1.0f;
+    configValues["dwindle:no_gaps_when_only"].intValue = 0;
 
     configValues["master:special_scale_factor"].floatValue = 0.8f;
     configValues["master:new_is_master"].intValue = 1;
diff --git a/src/layout/DwindleLayout.cpp b/src/layout/DwindleLayout.cpp
index 3ff24aa0..be1c23d8 100644
--- a/src/layout/DwindleLayout.cpp
+++ b/src/layout/DwindleLayout.cpp
@@ -63,7 +63,7 @@ void SDwindleNodeData::getAllChildrenRecursive(std::deque<SDwindleNodeData*>* pD
 int CHyprDwindleLayout::getNodesOnWorkspace(const int& id) {
     int no = 0;
     for (auto& n : m_lDwindleNodesData) {
-        if (n.workspaceID == id)
+        if (n.workspaceID == id && n.valid)
             ++no;
     }
     return no;
@@ -137,9 +137,24 @@ void CHyprDwindleLayout::applyNodeDataToWindow(SDwindleNodeData* pNode) {
     PWINDOW->m_vSize = pNode->size;
     PWINDOW->m_vPosition = pNode->position;
 
+    static auto *const PNOGAPSWHENONLY = &g_pConfigManager->getConfigValuePtr("dwindle:no_gaps_when_only")->intValue;
+
     auto calcPos = PWINDOW->m_vPosition + Vector2D(BORDERSIZE, BORDERSIZE);
     auto calcSize = PWINDOW->m_vSize - Vector2D(2 * BORDERSIZE, 2 * BORDERSIZE);
 
+    if (*PNOGAPSWHENONLY && PWINDOW->m_iWorkspaceID != SPECIAL_WORKSPACE_ID && getNodesOnWorkspace(PWINDOW->m_iWorkspaceID) == 1) {
+        PWINDOW->m_vRealPosition = calcPos;
+        PWINDOW->m_vRealSize = calcSize;
+
+        PWINDOW->updateWindowDecos();
+
+        PWINDOW->m_sSpecialRenderData.rounding = false;
+
+        return;
+    }
+
+    PWINDOW->m_sSpecialRenderData.rounding = true;
+
     const auto OFFSETTOPLEFT = Vector2D(DISPLAYLEFT ? GAPSOUT : GAPSIN,
                                         DISPLAYTOP ? GAPSOUT : GAPSIN);
 
@@ -378,6 +393,9 @@ void CHyprDwindleLayout::onWindowRemovedTiling(CWindow* pWindow) {
         }
     }
 
+    PPARENT->valid = false;
+    PNODE->valid = false;
+
     if (PSIBLING->pParent)
         PSIBLING->pParent->recalcSizePosRecursive();
     else 
diff --git a/src/layout/DwindleLayout.hpp b/src/layout/DwindleLayout.hpp
index b60b87e0..1dceb0c5 100644
--- a/src/layout/DwindleLayout.hpp
+++ b/src/layout/DwindleLayout.hpp
@@ -30,6 +30,8 @@ struct SDwindleNodeData {
 
     float           splitRatio = 1.f;
 
+    bool            valid = true;
+
     // For list lookup
     bool operator==(const SDwindleNodeData& rhs) {
         return pWindow == rhs.pWindow && workspaceID == rhs.workspaceID && position == rhs.position && size == rhs.size && pParent == rhs.pParent && children[0] == rhs.children[0] && children[1] == rhs.children[1];
diff --git a/src/render/Renderer.cpp b/src/render/Renderer.cpp
index 1de132f3..5103c92c 100644
--- a/src/render/Renderer.cpp
+++ b/src/render/Renderer.cpp
@@ -201,7 +201,7 @@ void CHyprRenderer::renderWindow(CWindow* pWindow, CMonitor* pMonitor, timespec*
     renderdata.fadeAlpha = pWindow->m_fAlpha.fl() * (PWORKSPACE->m_fAlpha.fl() / 255.f);
     renderdata.alpha = pWindow->m_fActiveInactiveAlpha.fl();
     renderdata.decorate = decorate && !pWindow->m_bX11DoesntWantBorders && (pWindow->m_bIsFloating ? *PNOFLOATINGBORDERS == 0 : true) && (!pWindow->m_bIsFullscreen || PWORKSPACE->m_efFullscreenMode != FULLSCREEN_FULL);
-    renderdata.rounding = pWindow->m_sAdditionalConfigData.rounding;
+    renderdata.rounding = pWindow->m_sAdditionalConfigData.rounding && pWindow->m_sSpecialRenderData.rounding;
     renderdata.blur = true; // if it shouldn't, it will be ignored later
 
     // apply window special data