From 20f54fd9edd9423b9375f8ce95b4344b953d36c8 Mon Sep 17 00:00:00 2001
From: Michael Maltese <mchtly@gmail.com>
Date: Wed, 31 May 2017 00:16:23 -0700
Subject: [PATCH] DolphinQt2: add DoubleClickEventFilter

This is an easy way to get a `doubleClicked` signal for any type
of widget without creating custom classes for each one.
---
 Source/Core/DolphinQt2/CMakeLists.txt           |  1 +
 Source/Core/DolphinQt2/DolphinQt2.vcxproj       |  5 ++++-
 .../Core/DolphinQt2/DolphinQt2.vcxproj.filters  |  9 +++++++++
 .../QtUtils/DoubleClickEventFilter.cpp          | 15 +++++++++++++++
 .../DolphinQt2/QtUtils/DoubleClickEventFilter.h | 17 +++++++++++++++++
 5 files changed, 46 insertions(+), 1 deletion(-)
 create mode 100644 Source/Core/DolphinQt2/QtUtils/DoubleClickEventFilter.cpp
 create mode 100644 Source/Core/DolphinQt2/QtUtils/DoubleClickEventFilter.h

diff --git a/Source/Core/DolphinQt2/CMakeLists.txt b/Source/Core/DolphinQt2/CMakeLists.txt
index feaac4a090..1e71a266ef 100644
--- a/Source/Core/DolphinQt2/CMakeLists.txt
+++ b/Source/Core/DolphinQt2/CMakeLists.txt
@@ -40,6 +40,7 @@ set(SRCS
   GameList/GameListModel.cpp
   GameList/GameTracker.cpp
   GameList/ListProxyModel.cpp
+  QtUtils/DoubleClickEventFilter.cpp
   QtUtils/ElidedButton.cpp
   Settings/GeneralPane.cpp
   Settings/InterfacePane.cpp
diff --git a/Source/Core/DolphinQt2/DolphinQt2.vcxproj b/Source/Core/DolphinQt2/DolphinQt2.vcxproj
index 113637506c..3c17f53b28 100644
--- a/Source/Core/DolphinQt2/DolphinQt2.vcxproj
+++ b/Source/Core/DolphinQt2/DolphinQt2.vcxproj
@@ -52,7 +52,7 @@
       <AdditionalOptions>/NODEFAULTLIB:libcmt %(AdditionalOptions)</AdditionalOptions>
     </Link>
     <ClCompile>
-      <AdditionalIncludeDirectories>$(ProjectDir)\VideoInterface;$(ProjectDir)\GameList;$(ProjectDir)\Settings;$(ProjectDir)\Config;$(ProjectDir)\Config\Mapping;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(ProjectDir)\VideoInterface;$(ProjectDir)\GameList;$(ProjectDir)\Settings;$(ProjectDir)\Config;$(ProjectDir)\Config\Mapping;$(ProjectDir)\QtUtils;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
     <Manifest>
       <AdditionalManifestFiles>DolphinQt2.manifest;%(AdditionalManifestFiles)</AdditionalManifestFiles>
@@ -88,6 +88,7 @@
     <QtMoc Include="Settings\InterfacePane.h" />
     <QtMoc Include="MainWindow.h" />
     <QtMoc Include="MenuBar.h" />
+    <QtMoc Include="QtUtils\DoubleClickEventFilter.h" />
     <QtMoc Include="RenderWidget.h" />
     <QtMoc Include="Settings.h" />
     <QtMoc Include="Settings\GeneralPane.h" />
@@ -114,6 +115,7 @@
     <ClCompile Include="$(QtMocOutPrefix)MenuBar.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)PathDialog.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)PropertiesDialog.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)DoubleClickEventFilter.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)RenderWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)Settings.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)SettingsWindow.cpp" />
@@ -146,6 +148,7 @@
     <ClCompile Include="Main.cpp" />
     <ClCompile Include="MainWindow.cpp" />
     <ClCompile Include="MenuBar.cpp" />
+    <ClCompile Include="QtUtils\DoubleClickEventFilter.cpp" />
     <ClCompile Include="QtUtils\ElidedButton.cpp" />
     <ClCompile Include="RenderWidget.cpp" />
     <ClCompile Include="Resources.cpp" />
diff --git a/Source/Core/DolphinQt2/DolphinQt2.vcxproj.filters b/Source/Core/DolphinQt2/DolphinQt2.vcxproj.filters
index e3d6e53cec..f051b6a93f 100644
--- a/Source/Core/DolphinQt2/DolphinQt2.vcxproj.filters
+++ b/Source/Core/DolphinQt2/DolphinQt2.vcxproj.filters
@@ -29,6 +29,9 @@
     <ClCompile Include="$(QtMocOutPrefix)MenuBar.cpp">
       <Filter>Generated Files</Filter>
     </ClCompile>
+    <ClCompile Include="$(QtMocOutPrefix)DoubleClickEventFilter.cpp">
+      <Filter>Generated Files</Filter>
+    </ClCompile>
     <ClCompile Include="$(QtMocOutPrefix)RenderWidget.cpp">
       <Filter>Generated Files</Filter>
     </ClCompile>
@@ -116,6 +119,9 @@
     <ClCompile Include="Config\Mapping\WiimoteEmuExtension.cpp" />
     <ClCompile Include="Config\Mapping\WiimoteEmuGeneral.cpp" />
     <ClCompile Include="Config\Mapping\WiimoteEmuMotionControl.cpp" />
+    <ClCompile Include="QtUtils\DoubleClickEventFilter.cpp">
+      <Filter>QtUtils</Filter>
+    </ClCompile>
     <ClCompile Include="QtUtils\ElidedButton.cpp">
       <Filter>QtUtils</Filter>
     </ClCompile>
@@ -160,6 +166,9 @@
     </QtMoc>
     <QtMoc Include="Config\Mapping\MappingWidget.h" />
     <QtMoc Include="Config\Mapping\MappingWindow.h" />
+    <QtMoc Include="QtUtils\DoubleClickEventFilter.h">
+      <Filter>QtUtils</Filter>
+    </QtMoc>
   </ItemGroup>
   <ItemGroup>
     <QtUi Include="*.ui" />
diff --git a/Source/Core/DolphinQt2/QtUtils/DoubleClickEventFilter.cpp b/Source/Core/DolphinQt2/QtUtils/DoubleClickEventFilter.cpp
new file mode 100644
index 0000000000..3a626e1203
--- /dev/null
+++ b/Source/Core/DolphinQt2/QtUtils/DoubleClickEventFilter.cpp
@@ -0,0 +1,15 @@
+// Copyright 2017 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include <QEvent>
+
+#include "DolphinQt2/QtUtils/DoubleClickEventFilter.h"
+
+bool DoubleClickEventFilter::eventFilter(QObject* object, QEvent* event)
+{
+  if (event->type() == QEvent::MouseButtonDblClick)
+    emit doubleClicked();
+
+  return false;
+}
diff --git a/Source/Core/DolphinQt2/QtUtils/DoubleClickEventFilter.h b/Source/Core/DolphinQt2/QtUtils/DoubleClickEventFilter.h
new file mode 100644
index 0000000000..1e2da4a960
--- /dev/null
+++ b/Source/Core/DolphinQt2/QtUtils/DoubleClickEventFilter.h
@@ -0,0 +1,17 @@
+// Copyright 2017 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <QObject>
+
+class DoubleClickEventFilter : public QObject
+{
+  Q_OBJECT
+signals:
+  void doubleClicked();
+
+private:
+  bool eventFilter(QObject* object, QEvent* event) override;
+};