From 76554cb8a2bf8cc677e5711bef4c1a1fe5b28768 Mon Sep 17 00:00:00 2001
From: tildearrow <me@tildearrow.org>
Date: Sat, 9 Nov 2024 19:44:28 -0500
Subject: [PATCH] GUI: prepare to fix text overflow

---
 src/gui/gui.cpp | 18 ++++++++++++++++++
 src/gui/gui.h   |  3 +++
 2 files changed, 21 insertions(+)

diff --git a/src/gui/gui.cpp b/src/gui/gui.cpp
index 966f13df6..5fad264b3 100644
--- a/src/gui/gui.cpp
+++ b/src/gui/gui.cpp
@@ -548,6 +548,24 @@ void FurnaceGUI::sameLineMaybe(float width) {
   if (ImGui::GetContentRegionAvail().x<width) ImGui::NewLine();
 }
 
+void FurnaceGUI::ScrollText(ImGuiID id, const char* text, const ImVec2& size, bool alwaysScroll) {
+  ImDrawList* dl=ImGui::GetWindowDrawList();
+  ImGuiWindow* window=ImGui::GetCurrentWindow();
+
+  ImVec2 minArea=window->DC.CursorPos;
+  ImVec2 maxArea=ImVec2(
+    minArea.x+size.x,
+    minArea.y+size.y
+  );
+  ImRect rect=ImRect(minArea,maxArea);
+  ImGuiStyle& style=ImGui::GetStyle();
+  ImGui::ItemSize(size,style.FramePadding.y);
+  if (ImGui::ItemAdd(rect,id)) {
+    // TODO
+    dl->AddText(minArea,ImGui::GetColorU32(ImGuiCol_Text),text);
+  }
+}
+
 const char* FurnaceGUI::getSystemName(DivSystem which) {
   /*
   if (settings.chipNames) {
diff --git a/src/gui/gui.h b/src/gui/gui.h
index 00c7d8d09..fa5df0b5d 100644
--- a/src/gui/gui.h
+++ b/src/gui/gui.h
@@ -2792,6 +2792,9 @@ class FurnaceGUI {
   // inverted checkbox
   bool InvCheckbox(const char* label, bool* value);
 
+  // scrolling text
+  void ScrollText(ImGuiID id, const char* text, const ImVec2& size=ImVec2(0,0), bool alwaysScroll=false);
+
   // mixer stuff
   ImVec2 calcPortSetSize(String label, int ins, int outs);
   bool portSet(String label, unsigned int portSetID, int ins, int outs, int activeIns, int activeOuts, int& clickedPort, std::map<unsigned int,ImVec2>& portPos);