From 29f624024f25e782d8b1875032264307bf94d02d Mon Sep 17 00:00:00 2001
From: Hirek193 <polomarket73@gmail.com>
Date: Thu, 22 Oct 2026 16:42:56 +0200
Subject: [PATCH] feat(ui): memory cells section in the debug panel, to look up
 and set them while the simulation runs

---
 application/driveruipanels.cpp | 18 ++++++++++++++++++
 application/editoruipanels.cpp | 15 ++++++++++-----
 application/editoruipanels.h   |  4 ++++
 lang/editor_pl.po              |  3 +++
 4 files changed, 35 insertions(+), 5 deletions(-)

diff --git a/application/driveruipanels.cpp b/application/driveruipanels.cpp
index 078d10e3..017e518d 100644
--- a/application/driveruipanels.cpp
+++ b/application/driveruipanels.cpp
@@ -9,6 +9,7 @@ http://mozilla.org/MPL/2.0/.
 
 #include "stdafx.h"
 #include "application/driveruipanels.h"
+#include "application/editoruipanels.h"
 
 #include "utilities/Globals.h"
 #include "application/application.h"
@@ -544,6 +545,22 @@ void debug_panel::update()
 #endif
 }
 
+namespace {
+
+// memory cells of the scenery, to look into and play with while the simulation runs
+bool render_section_memcells() {
+
+    if( false == ImGui::CollapsingHeader( "Memory Cells" ) ) { return false; }
+    static memcells_panel memcells { "Memory cells", true };
+    memcells.listheight = ImGui::GetTextLineHeightWithSpacing() * 12.f;
+    ImGui::PushID( "memcells" );
+    memcells.render_body();
+    ImGui::PopID();
+    return true;
+}
+
+} // namespace
+
 void
 debug_panel::render() {
     if( false == is_open ) { return; }
@@ -577,6 +594,7 @@ debug_panel::render() {
         render_section( "Vehicle Scan Table", m_scantablelines );
         render_section_scenario();
         render_section_eventqueue();
+        render_section_memcells();
         if( true == render_section( "Power Grid", m_powergridlines ) ) {
             // traction state debug
             ImGui::Checkbox( "Debug Traction", &DebugTractionFlag );
diff --git a/application/editoruipanels.cpp b/application/editoruipanels.cpp
index 312c04e5..c0c05624 100644
--- a/application/editoruipanels.cpp
+++ b/application/editoruipanels.cpp
@@ -2468,12 +2468,17 @@ void memcells_panel::render()
 	auto const panelname{(title.empty() ? std::string{STR_C(m_name.c_str())} : title) + "###" + m_name};
 	if (ImGui::Begin(panelname.c_str(), &is_open, ImGuiWindowFlags_NoFocusOnAppearing | ImGuiWindowFlags_NoCollapse))
 	{
-		render_list();
-		render_cell();
+		render_body();
 	}
 	ImGui::End();
 }
 
+void memcells_panel::render_body()
+{
+	render_list();
+	render_cell();
+}
+
 void memcells_panel::render_list()
 {
 	auto const &cells{simulation::Memory.sequence()};
@@ -2533,8 +2538,8 @@ void memcells_panel::render_list()
 	}
 	ImGui::TextDisabled(STR_C("Memory cells: %d, shown: %d"), static_cast<int>(m_sorted.size()), static_cast<int>(m_listed.size()));
 
-	auto const listheight{std::max(120.0f, ImGui::GetContentRegionAvail().y - ImGui::GetFrameHeightWithSpacing() * 7.0f)};
-	if (ImGui::BeginTable("##memcells", 5, ImGuiTableFlags_Resizable | ImGuiTableFlags_BordersInnerV | ImGuiTableFlags_RowBg | ImGuiTableFlags_ScrollY, ImVec2(-1.0f, listheight)))
+	auto const height{listheight > 0.0f ? listheight : std::max(120.0f, ImGui::GetContentRegionAvail().y - ImGui::GetFrameHeightWithSpacing() * 7.0f)};
+	if (ImGui::BeginTable("##memcells", 5, ImGuiTableFlags_Resizable | ImGuiTableFlags_BordersInnerV | ImGuiTableFlags_RowBg | ImGuiTableFlags_ScrollY, ImVec2(-1.0f, height)))
 	{
 		ImGui::TableSetupScrollFreeze(0, 1);
 		ImGui::TableSetupColumn(STR_C("Name"), ImGuiTableColumnFlags_WidthStretch, 2.0f);
@@ -2601,7 +2606,7 @@ void memcells_panel::render_cell()
 	ImGui::Separator();
 	if (m_selected == nullptr)
 	{
-		ImGui::TextDisabled("%s", STR_C("Pick a memory cell from the list to set what's in it. A double click shows where it is"));
+		ImGui::TextDisabled("%s", focus ? STR_C("Pick a memory cell from the list to set what's in it. A double click shows where it is") : STR_C("Pick a memory cell from the list to set what's in it"));
 		return;
 	}
 	auto *cell{m_selected};
diff --git a/application/editoruipanels.h b/application/editoruipanels.h
index c135601c..9ffeb983 100644
--- a/application/editoruipanels.h
+++ b/application/editoruipanels.h
@@ -283,9 +283,13 @@ class memcells_panel : public ui_panel
 	memcells_panel(std::string const &Name, bool const Isopen) : ui_panel(Name, Isopen) {}
 
 	void render() override;
+	// panel content without the window, also drawn in the debug panel of the driver mode
+	void render_body();
 
 	// moves the camera to specified node; provided by the editor mode
 	std::function<void(scene::basic_node *)> focus;
+	// height of the list, 0: it takes what the window has left
+	float listheight{0.0f};
 
   private:
 	// methods
diff --git a/lang/editor_pl.po b/lang/editor_pl.po
index 70aea896..5f29c7e4 100644
--- a/lang/editor_pl.po
+++ b/lang/editor_pl.po
@@ -10375,3 +10375,6 @@ msgstr "Dodaj do wartości"
 
 msgid "Read again"
 msgstr "Odczytaj ponownie"
+
+msgid "Pick a memory cell from the list to set what's in it"
+msgstr "Wybierz komórkę pamięci z listy, aby ustawić jej zawartość"