InputText: Fixed minor glitch when erasing trailing lines in InputTextMultiline(). Fixed cursor being partially covered after using Ctrl+End key.

Removed unncessary one-empty-line-worth-of-scrolling.

docs/CHANGELOG.txt

@@ -48,6 +48,8 @@ Other Changes:
   underlying buffer while focus is active).
 - InputText: Fixed using ImGuiInputTextFlags_Password with InputTextMultiline(). (#3427, #3428)
   It is a rather unusual or useless combination of features but no reason it shouldn't work!
+- InputText: Fixed minor scrolling glitch when erasing trailing lines in InputTextMultiline().
+- InputText: Fixed cursor being partially covered after using Ctrl+End key.
 - InputText: Fixed callback's helper DeleteChars() function when cursor is inside the deleted block. (#3454).
 - DragFloat, DragScalar: Fixed ImGuiSliderFlags_ClampOnInput not being honored in the special case
   where v_min == v_max. (#3361)

imgui_widgets.cpp

@@ -4433,11 +4433,14 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
             // Vertical scroll
             if (is_multiline)
             {
+                // Test if cursor is vertically visible
                 float scroll_y = draw_window->Scroll.y;
+                const float scroll_max_y = ImMax((text_size.y + style.FramePadding.y * 2.0f) - inner_size.y, 0.0f);
                 if (cursor_offset.y - g.FontSize < scroll_y)
                     scroll_y = ImMax(0.0f, cursor_offset.y - g.FontSize);
                 else if (cursor_offset.y - inner_size.y >= scroll_y)
-                    scroll_y = cursor_offset.y - inner_size.y;
+                    scroll_y = cursor_offset.y - inner_size.y + style.FramePadding.y * 2.0f;
+                scroll_y = ImClamp(scroll_y, 0.0f, scroll_max_y);
                 draw_pos.y += (draw_window->Scroll.y - scroll_y);   // Manipulate cursor pos immediately avoid a frame of lag
                 draw_window->Scroll.y = scroll_y;
             }
@@ -4526,7 +4529,7 @@ bool ImGui::InputTextEx(const char* label, const char* hint, char* buf, int buf_
 
     if (is_multiline)
     {
-        Dummy(text_size + ImVec2(0.0f, g.FontSize)); // Always add room to scroll an extra line
+        Dummy(text_size);
         EndChild();
         EndGroup();
     }