From db63cedcd681da170487db0ac18cac56704cfe05 Mon Sep 17 00:00:00 2001
From: eidheim <eidheim@gmail.com>
Date: Thu, 1 Jul 2021 12:17:02 +0200
Subject: [PATCH] Improved positioning of tooltips through more exactly
 computing the size of the tooltip to be shown

---
 src/tooltips.cpp | 22 +++++++++++++++++-----
 1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/src/tooltips.cpp b/src/tooltips.cpp
index 08f2f98..ed3af23 100644
--- a/src/tooltips.cpp
+++ b/src/tooltips.cpp
@@ -193,11 +193,23 @@ void Tooltip::show(bool disregard_drawn, const std::function<void()> &on_motion)
       return false;
     });
 
-    auto layout = Pango::Layout::create(tooltip_text_view->get_pango_context());
-    if(auto tag = code_tag ? code_tag : code_block_tag)
-      layout->set_font_description(tag->property_font_desc());
-    layout->set_text(buffer->get_text());
-    layout->get_pixel_size(size.first, size.second);
+    Gdk::Rectangle rect;
+    auto iter = buffer->begin();
+    tooltip_text_view->get_iter_location(iter, rect);
+    int min_x = rect.get_x();
+    int max_x = rect.get_x() + rect.get_width();
+    int height = 0;
+    while(true) {
+      if(iter.ends_line()) {
+        tooltip_text_view->get_iter_location(iter, rect);
+        max_x = std::max(max_x, rect.get_x() + rect.get_width());
+        height += rect.get_height();
+      }
+      if(iter.is_end())
+        break;
+      iter.forward_char();
+    }
+    size = {max_x - min_x, height};
     size.first += 6;  // 2xpadding
     size.second += 8; // 2xpadding + 2