[aseprite] 175/308: Fix slow performance pressing Alt or Ctrl key on Editor in Alleg4/Win port

[Tobias Hansen]

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thansen pushed a commit to branch master
in repository aseprite.

commit 910612101a94b1d5d2ceeefb8d94cf9c7e6132a8
Author: David Capello <davidcapello at gmail.com>
Date:   Wed Dec 30 17:30:20 2015 -0300

    Fix slow performance pressing Alt or Ctrl key on Editor in Alleg4/Win port
---
 src/ui/manager.cpp | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/src/ui/manager.cpp b/src/ui/manager.cpp
index b113758..c57e0d7 100644
--- a/src/ui/manager.cpp
+++ b/src/ui/manager.cpp
@@ -272,6 +272,8 @@ static MouseButtons mouse_buttons_from_she_to_ui(const she::Event& sheEvent)
 
 void Manager::generateMessagesFromSheEvents()
 {
+  she::Event lastMouseMoveEvent;
+
   // Events from "she" layer.
   she::Event sheEvent;
   for (;;) {
@@ -338,6 +340,8 @@ void Manager::generateMessagesFromSheEvents()
 
         handleMouseMove(sheEvent.position(), m_mouseButtons,
                         sheEvent.modifiers());
+
+        lastMouseMoveEvent = sheEvent;
         break;
       }
 
@@ -377,6 +381,12 @@ void Manager::generateMessagesFromSheEvents()
       }
     }
   }
+
+  // Generate just one kSetCursorMessage for the last mouse position
+  if (lastMouseMoveEvent.type() != she::Event::None) {
+    generateSetCursorMessage(lastMouseMoveEvent.position(),
+                             lastMouseMoveEvent.modifiers());
+  }
 }
 
 void Manager::handleMouseMove(const gfx::Point& mousePos,
@@ -409,8 +419,6 @@ void Manager::handleMouseMove(const gfx::Point& mousePos,
     newMouseMessage(
       kMouseMoveMessage, dst,
       mousePos, mouseButtons, modifiers));
-
-  generateSetCursorMessage(mousePos, modifiers);
 }
 
 void Manager::handleMouseDown(const gfx::Point& mousePos,

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