From 5008147870fdac82b0ba93003eb1e46549834f8e Mon Sep 17 00:00:00 2001
From: Vaxry <vaxry@vaxry.net>
Date: Fri, 5 Jul 2024 23:22:20 +0200
Subject: [PATCH] xcursor stuff

---
 src/managers/CursorManager.cpp | 39 +++++++++++++++++++++++++++++----
 src/managers/CursorManager.hpp | 11 ++++++----
 src/protocols/CursorShape.cpp  | 40 ----------------------------------
 3 files changed, 42 insertions(+), 48 deletions(-)

diff --git a/src/managers/CursorManager.cpp b/src/managers/CursorManager.cpp
index 176caaa59..9545201e3 100644
--- a/src/managers/CursorManager.cpp
+++ b/src/managers/CursorManager.cpp
@@ -4,6 +4,7 @@
 #include "PointerManager.hpp"
 #include "../xwayland/XWayland.hpp"
 #include <cstring>
+#include "../helpers/CursorShapes.hpp"
 
 extern "C" {
 #include <X11/Xcursor/Xcursor.h>
@@ -139,9 +140,14 @@ void CCursorManager::setXCursor(const std::string& name) {
         return;
     }
 
-    m_vCursorBuffers.emplace_back(makeShared<CCursorBuffer>(xcursor.defaultCursor->pixels.data(), xcursor.defaultCursor->size, xcursor.defaultCursor->hotspot));
+    auto& icon = xcursor.defaultCursor;
+    // try to get an icon we know if we have one
+    if (xcursor.cursors.contains(name))
+        icon = xcursor.cursors.at(name);
 
-    g_pPointerManager->setCursorBuffer(getCursorBuffer(), xcursor.defaultCursor->hotspot / scale, scale);
+    m_vCursorBuffers.emplace_back(makeShared<CCursorBuffer>(icon->pixels.data(), icon->size, icon->hotspot));
+
+    g_pPointerManager->setCursorBuffer(getCursorBuffer(), icon->hotspot / scale, scale);
     if (m_vCursorBuffers.size() > 1)
         dropBufferRef(m_vCursorBuffers.at(0).get());
 
@@ -300,8 +306,12 @@ bool CCursorManager::changeTheme(const std::string& name, const int size) {
 }
 
 void CCursorManager::SXCursorManager::loadTheme(const std::string& name, int size) {
-    themeLoaded = false;
-    themeName   = name.empty() ? "default" : name;
+    if (lastLoadSize == size && themeName == name)
+        return;
+
+    lastLoadSize = size;
+    themeLoaded  = false;
+    themeName    = name.empty() ? "default" : name;
 
     auto img = XcursorShapeLoadImage(1, name.c_str(), size);
 
@@ -323,4 +333,25 @@ void CCursorManager::SXCursorManager::loadTheme(const std::string& name, int siz
     std::memcpy(defaultCursor->pixels.data(), img->pixels, img->width * img->height);
 
     themeLoaded = true;
+
+    // gather as many shapes as we can find.
+    cursors.clear();
+
+    for (auto& shape : CURSOR_SHAPE_NAMES) {
+        auto xImage = XcursorShapeLoadImage(1, shape, size);
+
+        if (!xImage) {
+            Debug::log(LOG, "XCursor failed to find a shape with name {}, skipping", shape);
+            continue;
+        }
+
+        auto xcursor     = makeShared<SXCursor>();
+        xcursor->size    = {(int)xImage->width, (int)xImage->height};
+        xcursor->hotspot = {(int)xImage->xhot, (int)xImage->yhot};
+
+        xcursor->pixels.resize(xImage->width * xImage->height);
+        std::memcpy(xcursor->pixels.data(), xImage->pixels, xImage->width * xImage->height);
+
+        cursors.emplace(std::string{shape}, xcursor);
+    }
 }
diff --git a/src/managers/CursorManager.hpp b/src/managers/CursorManager.hpp
index 67e8d9706..eeb57197e 100644
--- a/src/managers/CursorManager.hpp
+++ b/src/managers/CursorManager.hpp
@@ -81,11 +81,14 @@ class CCursorManager {
     };
 
     struct SXCursorManager {
-        void         loadTheme(const std::string& name, int size);
+        void                                          loadTheme(const std::string& name, int size);
 
-        bool         themeLoaded = false;
-        std::string  themeName   = "";
-        SP<SXCursor> defaultCursor;
+        int                                           lastLoadSize = 0;
+
+        bool                                          themeLoaded = false;
+        std::string                                   themeName   = "";
+        SP<SXCursor>                                  defaultCursor;
+        std::unordered_map<std::string, SP<SXCursor>> cursors;
     } xcursor;
 };
 
diff --git a/src/protocols/CursorShape.cpp b/src/protocols/CursorShape.cpp
index 2f25b22bc..9b76b7675 100644
--- a/src/protocols/CursorShape.cpp
+++ b/src/protocols/CursorShape.cpp
@@ -3,46 +3,6 @@
 
 #define LOGM PROTO::cursorShape->protoLog
 
-// clang-format off
-constexpr const char* SHAPE_NAMES[] = {
-    "invalid",
-    "default",
-    "context-menu",
-    "help",
-    "pointer",
-    "progress",
-    "wait",
-    "cell",
-    "crosshair",
-    "text",
-    "vertical-text",
-    "alias",
-    "copy",
-    "move",
-    "no-drop",
-    "not-allowed",
-    "grab",
-    "grabbing",
-    "e-resize",
-    "n-resize",
-    "ne-resize",
-    "nw-resize",
-    "s-resize",
-    "se-resize",
-    "sw-resize",
-    "w-resize",
-    "ew-resize",
-    "ns-resize",
-    "nesw-resize",
-    "nwse-resize",
-    "col-resize",
-    "row-resize",
-    "all-scroll",
-    "zoom-in",
-    "zoom-out",
-};
-// clang-format on
-
 CCursorShapeProtocol::CCursorShapeProtocol(const wl_interface* iface, const int& ver, const std::string& name) : IWaylandProtocol(iface, ver, name) {
     ;
 }