From bd6054bac955ff766abf404e3d743fa92e48a39c Mon Sep 17 00:00:00 2001
From: jeka <evgeny@adaptto.ru>
Date: Sat, 21 Feb 2026 23:00:02 +0300
Subject: [PATCH] =?UTF-8?q?=D1=84=D0=B8=D0=BA=D1=81=20=D0=B3=D1=80=D0=B0?=
 =?UTF-8?q?=D1=84=D0=B8=D0=BA=D0=BE=D0=B2?=
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---
 tools/etcpmon/etcpmon_graph.c | 13 +++++++++++--
 tools/etcpmon/etcpmon_gui.c   | 12 +++++++-----
 2 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/tools/etcpmon/etcpmon_graph.c b/tools/etcpmon/etcpmon_graph.c
index ec06a0cd..18d911e1 100644
--- a/tools/etcpmon/etcpmon_graph.c
+++ b/tools/etcpmon/etcpmon_graph.c
@@ -81,10 +81,10 @@ void DrawGraph(HDC hdc, RECT* rc, struct etcpmon_app* app)
     int sc = 0;
     GetSelectedChannels(app, sel, &sc);
     int pad = 5;
-    int gl = pad + 45;          /* левая граница графика */
+    int gl = pad + 5;          /* левая граница графика */
     int gr = w - pad;           /* правая граница */
     int gt = pad;               /* верх */
-    int gb = h - 25;            /* низ */
+    int gb = h - 5;            /* низ */
     int gh = gb - gt;
     /* === Сетка === */
     HPEN grid = CreatePen(PS_DOT, 1, GetSysColor(COLOR_BTNSHADOW));
@@ -141,6 +141,12 @@ void DrawGraph(HDC hdc, RECT* rc, struct etcpmon_app* app)
         LineTo(memDC, app->graph_cursor_x, gb);
         SelectObject(memDC, old);
         DeleteObject(cp);
+
+        int cursor_rel_x = app->graph_cursor_x - startx;
+        if (cursor_rel_x >= 0 && cursor_rel_x < vis) {
+            int cursor_idx = (oldest + cursor_rel_x) % GRAPH_HISTORY_SIZE;
+            UpdateChannelValues(app, cursor_idx);
+        }
     }
 end:
     /* Копируем на экран */
@@ -225,6 +231,9 @@ LRESULT CALLBACK GraphWndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lPa
                     InvalidateRect(hWnd, NULL, FALSE);
                     last_invalidate = now;
                 }
+
+                TRACKMOUSEEVENT tme = { sizeof(tme), TME_LEAVE, hWnd, 0 };
+                TrackMouseEvent(&tme);
             } else {
                 app->graph_cursor_active = 0;
                 InvalidateRect(hWnd, NULL, FALSE);
diff --git a/tools/etcpmon/etcpmon_gui.c b/tools/etcpmon/etcpmon_gui.c
index ad06cae3..c09a6862 100644
--- a/tools/etcpmon/etcpmon_gui.c
+++ b/tools/etcpmon/etcpmon_gui.c
@@ -520,7 +520,7 @@ void etcpmon_gui_update_graph(struct etcpmon_app* app, struct etcpmon_rsp_metric
         InvalidateRect(app->hGraphWnd, NULL, FALSE);
     }
     
-    if (app->client) {
+    if (!app->graph_cursor_active && app->client) {
         struct metrics_history* h = etcpmon_client_get_history(app->client);
         if (h && h->count > 0) {
             int last_idx = (h->head - 1 + GRAPH_HISTORY_SIZE) % GRAPH_HISTORY_SIZE;
@@ -551,10 +551,12 @@ static void on_metrics(struct etcpmon_rsp_metrics* metrics,
     if (app) {
         etcpmon_gui_update_metrics(app, metrics, links, links_count);
         etcpmon_client_add_to_history(app->client, metrics);
-        struct metrics_history* h = etcpmon_client_get_history(app->client);
-        if (h && h->count > 0) {
-            int last_idx = (h->head - 1 + GRAPH_HISTORY_SIZE) % GRAPH_HISTORY_SIZE;
-            UpdateChannelValues(app, last_idx);
+        if (!app->graph_cursor_active) {
+            struct metrics_history* h = etcpmon_client_get_history(app->client);
+            if (h && h->count > 0) {
+                int last_idx = (h->head - 1 + GRAPH_HISTORY_SIZE) % GRAPH_HISTORY_SIZE;
+                UpdateChannelValues(app, last_idx);
+            }
         }
     }
 }