From bc4a631baeb37f941cb2ed5ebc461aa081db400d Mon Sep 17 00:00:00 2001
From: Matan Ziv-Av <matan@svgalib.org>
Date: Sat, 21 May 2022 20:01:37 +0300
Subject: [PATCH] Support iTerm2 ReportCellSize OSC

---
 src/Vt102Emulation.cpp | 15 +++++++++++++++
 src/Vt102Emulation.h   |  1 +
 2 files changed, 16 insertions(+)

diff --git a/src/Vt102Emulation.cpp b/src/Vt102Emulation.cpp
index 51bc8154..66061832 100644
--- a/src/Vt102Emulation.cpp
+++ b/src/Vt102Emulation.cpp
@@ -799,6 +799,10 @@ void Vt102Emulation::processSessionAttributeRequest(int tokenSize)
     }
 
     if (attribute == 1337) {
+        if (value.startsWith(QLatin1String("ReportCellSize"))) {
+            iTermReportCellSize();
+            return;
+        }
         if (!value.startsWith(QLatin1String("File="))) {
             return;
         }
@@ -1581,6 +1585,17 @@ void Vt102Emulation::reportPixelSize()
     sendString(tmp);
 }
 
+void Vt102Emulation::iTermReportCellSize()
+{
+    char tmp[50];
+    snprintf(tmp,
+             sizeof(tmp),
+             "\033]1337;ReportCellSize=%d.0;%d.0;1.0\007",
+             _currentScreen->currentTerminalDisplay()->terminalFont()->fontHeight(),
+             _currentScreen->currentTerminalDisplay()->terminalFont()->fontWidth());
+    sendString(tmp);
+}
+
 void Vt102Emulation::reportCellSize()
 {
     char tmp[30];
diff --git a/src/Vt102Emulation.h b/src/Vt102Emulation.h
index db14f72d..661473f5 100644
--- a/src/Vt102Emulation.h
+++ b/src/Vt102Emulation.h
@@ -163,6 +163,7 @@ private:
     void reportCursorPosition();
     void reportPixelSize();
     void reportCellSize();
+    void iTermReportCellSize();
     void reportSize();
     void reportColor(int c, QColor color);
     void reportTerminalParms(int p);