From 751c4eb6fad54e3f8141d8ef4249b07597854c54 Mon Sep 17 00:00:00 2001
From: daa <andrey.dubravin@gmail.com>
Date: Sat, 22 Apr 2017 12:33:36 +0300
Subject: [PATCH] Fix repaint of underscore

---
 src/shell.rs | 52 ++++++++++++++++++++++++++++++++++------------------
 1 file changed, 34 insertions(+), 18 deletions(-)

diff --git a/src/shell.rs b/src/shell.rs
index edd94d5..babd243 100644
--- a/src/shell.rs
+++ b/src/shell.rs
@@ -454,27 +454,12 @@ fn get_model_clip(state: &State, line_height: f64, char_width: f64, clip: (f64,
     model_clip
 }
 
-fn draw(state: &State, ctx: &cairo::Context) {
-    ctx.set_source_rgb(state.bg_color.0, state.bg_color.1, state.bg_color.2);
-    ctx.paint();
-
-    let line_height = state.line_height.unwrap();
-    let char_width = state.char_width.unwrap();
-
-    let model_clip = get_model_clip(state, line_height, char_width, ctx.clip_extents());
-
+#[inline]
+fn draw_backgound(state: &State, ctx: &cairo::Context, line_height: f64, char_width: f64, model_clip: &ModelRect) {
     let line_x = model_clip.left as f64 * char_width;
     let mut line_y: f64 = model_clip.top as f64 * line_height;
 
-    let (row, col) = state.model.get_cursor();
-    let mut buf = String::with_capacity(4);
-
-
-
-    let layout = pc::create_layout(ctx);
-    let mut desc = state.create_pango_font();
-
-    for (line_idx, line) in state.model.clip_model(&model_clip) {
+    for (_, line) in state.model.clip_model(model_clip) {
         ctx.move_to(line_x, line_y);
 
         // first draw background
@@ -508,6 +493,33 @@ fn draw(state: &State, ctx: &cairo::Context) {
                          line_height,
                          from_bg.take().unwrap());
 
+        line_y += line_height;
+    }
+}
+
+fn draw(state: &State, ctx: &cairo::Context) {
+    ctx.set_source_rgb(state.bg_color.0, state.bg_color.1, state.bg_color.2);
+    ctx.paint();
+
+    let line_height = state.line_height.unwrap();
+    let char_width = state.char_width.unwrap();
+
+    let model_clip = get_model_clip(state, line_height, char_width, ctx.clip_extents());
+
+    let line_x = model_clip.left as f64 * char_width;
+    let mut line_y: f64 = model_clip.top as f64 * line_height;
+
+    let (row, col) = state.model.get_cursor();
+    let mut buf = String::with_capacity(4);
+
+
+    let layout = pc::create_layout(ctx);
+    let mut desc = state.create_pango_font();
+
+    draw_backgound(state, ctx, line_height, char_width, &model_clip);
+
+    for (line_idx, line) in state.model.clip_model(&model_clip) {
+
         ctx.move_to(line_x, line_y);
 
         for (col_idx, cell) in line.iter() {
@@ -707,6 +719,10 @@ impl RedrawEvents for State {
             &RepaintMode::Area(ref rect) => {
                 match (&self.line_height, &self.char_width) {
                     (&Some(line_height), &Some(char_width)) => {
+                        let mut rect = rect.clone();
+                        // this need to repain also line under curren line
+                        // in case underscore or 'g' symbol is go here
+                        rect.extend(0, 1, 0, 0);
                         let (x, y, width, height) = rect.to_area(line_height, char_width);
                         self.drawing_area.queue_draw_area(x, y, width, height);
                     }