From 50244bf4000525e9659b7127e19589d898c497d4 Mon Sep 17 00:00:00 2001
From: Brian Fiete <bfiete@gmail.com>
Date: Sat, 16 May 2020 10:11:04 -0700
Subject: [PATCH] Triple-click to select line

---
 BeefLibs/Beefy2D/src/widgets/EditWidget.bf |  7 ++-
 BeefySysLib/BFWindow.cpp                   |  5 ++
 BeefySysLib/BFWindow.h                     | 10 ++++
 BeefySysLib/platform/win/WinBFApp.cpp      | 63 +++++++++++-----------
 4 files changed, 52 insertions(+), 33 deletions(-)

diff --git a/BeefLibs/Beefy2D/src/widgets/EditWidget.bf b/BeefLibs/Beefy2D/src/widgets/EditWidget.bf
index 40865ae6..c32590fe 100644
--- a/BeefLibs/Beefy2D/src/widgets/EditWidget.bf
+++ b/BeefLibs/Beefy2D/src/widgets/EditWidget.bf
@@ -743,7 +743,12 @@ namespace Beefy.widgets
 
             //PrintF("~TestStruct() %d\n", mInner.mVal1);            
 
-            if ((btnCount > 1) && (!mWidgetWindow.IsKeyDown(KeyCode.Shift)))
+			if ((btn == 0) && (btnCount >= 3) && (!mWidgetWindow.IsKeyDown(KeyCode.Shift)))
+			{
+				GetLinePosition(CursorLineAndColumn.mLine, var lineStart, var lineEnd);
+				mSelection = EditSelection(lineStart, lineEnd);
+			}
+            else if ((btn == 0) && (btnCount >= 2) && (!mWidgetWindow.IsKeyDown(KeyCode.Shift)))
             {
                 // Select word
                 StartSelection();
diff --git a/BeefySysLib/BFWindow.cpp b/BeefySysLib/BFWindow.cpp
index a816d0eb..e892a418 100644
--- a/BeefySysLib/BFWindow.cpp
+++ b/BeefySysLib/BFWindow.cpp
@@ -160,7 +160,12 @@ BFWindow::BFWindow()
 	for (int i = 0; i < KEYCODE_MAX; i++)
 		mIsKeyDown[i] = false;
 	for (int i = 0; i < MOUSEBUTTON_MAX; i++)
+	{
 		mIsMouseDown[i] = false;
+		mMouseClickCount[i] = 0;
+		mMouseDownTicks[i] = 0;
+		mMouseDownCoords[i] = { -1, -1 };
+	}
 }
 
 BFWindow::~BFWindow()
diff --git a/BeefySysLib/BFWindow.h b/BeefySysLib/BFWindow.h
index 22a1de46..af04f1ba 100644
--- a/BeefySysLib/BFWindow.h
+++ b/BeefySysLib/BFWindow.h
@@ -84,6 +84,12 @@ class BFSysBitmap;
 
 class BFWindow;
 
+struct BFCoord
+{
+	int mX;
+	int mY;
+};
+
 class BFWindow
 {
 public:
@@ -92,6 +98,10 @@ public:
 	int						mFlags;
 	bool					mIsKeyDown[KEYCODE_MAX];
 	bool					mIsMouseDown[MOUSEBUTTON_MAX];
+	BFCoord					mMouseDownCoords[MOUSEBUTTON_MAX];
+	int						mMouseClickCount[MOUSEBUTTON_MAX];
+	uint32					mMouseDownTicks[MOUSEBUTTON_MAX];
+
 	BFMenu*					mMenu;
 	RenderWindow*			mRenderWindow;		
 	bool					mNonExclusiveMouseCapture;
diff --git a/BeefySysLib/platform/win/WinBFApp.cpp b/BeefySysLib/platform/win/WinBFApp.cpp
index 1af8a47b..05068f1c 100644
--- a/BeefySysLib/platform/win/WinBFApp.cpp
+++ b/BeefySysLib/platform/win/WinBFApp.cpp
@@ -83,7 +83,7 @@ WinBFWindow::WinBFWindow(BFWindow* parent, const StringImpl& title, int x, int y
 	mMinHeight = 128;	
 
 	WNDCLASSW wc;
-	wc.style = CS_DBLCLKS;
+	wc.style = 0;
 	wc.cbClsExtra = 0;
 	wc.cbWndExtra = 0;
 	wc.hbrBackground = NULL;
@@ -567,51 +567,50 @@ LRESULT WinBFWindow::WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lPar
 				
 				bool checkNonTransparentMousePosition = mNonExclusiveMouseCapture;
 
+				auto _BtnDown = [&](int btn)
+				{
+					DWORD tickNow = BFTickCount();
+
+					SetCapture(hWnd);
+					mIsMouseDown[btn] = true;
+					BFCoord mouseCoords = { x, y };
+					if ((mouseCoords.mX != mMouseDownCoords[btn].mX) || (mouseCoords.mY != mMouseDownCoords[btn].mY) || 
+						(tickNow - mMouseDownTicks[btn] > ::GetDoubleClickTime()))
+						mMouseClickCount[btn] = 0;
+					mMouseDownCoords[btn] = mouseCoords;
+					mMouseClickCount[btn]++;
+					mMouseDownTicks[btn] = tickNow;
+					mMouseDownFunc(this, x, y, btn, mMouseClickCount[btn]);
+				};
+
+				auto _BtnUp = [&](int btn)
+				{
+					releaseCapture = true;
+					mIsMouseDown[btn] = false;
+					mMouseUpFunc(this, x, y, btn);
+				};
+
 				switch (uMsg)
 				{
 				case WM_LBUTTONDOWN:
 					//OutputDebugStrF("WM_LBUTTONDOWN Capture HWnd: %X\n", hWnd);
-					SetCapture(hWnd);
-					mIsMouseDown[0] = true;
-					mMouseDownFunc(this, x, y, 0, 1);
+					_BtnDown(0);
 					break;
 				case WM_RBUTTONDOWN:
 					//OutputDebugStrF("WM_RBUTTONDOWN Capture HWnd: %X\n", hWnd);
-					SetCapture(hWnd);
-					mIsMouseDown[1] = true;
-					mMouseDownFunc(this, x, y, 1, 1);						
+					_BtnDown(1);
 					break;
 				case WM_MBUTTONDOWN:
-					SetCapture(hWnd);
-					mIsMouseDown[2] = true;
-					mMouseDownFunc(this, x, y, 2, 1);						
-					break;
-				case WM_LBUTTONDBLCLK:
-					SetCapture(hWnd);
-					mMouseDownFunc(this, x, y, 0, 2);
-					break;
-				case WM_RBUTTONDBLCLK:
-					SetCapture(hWnd);
-					mMouseDownFunc(this, x, y, 1, 2);
-					break;
-				case WM_MBUTTONDBLCLK:
-					SetCapture(hWnd);
-					mMouseDownFunc(this, x, y, 2, 2);
-					break;
+					_BtnDown(2);
+					break;				
 				case WM_LBUTTONUP:
-					releaseCapture = true;					
-					mIsMouseDown[0] = false;
-					mMouseUpFunc(this, x, y, 0);
+					_BtnUp(0);					
 					break;
 				case WM_RBUTTONUP:							
-					releaseCapture = true;
-					mIsMouseDown[1] = false;
-					mMouseUpFunc(this, x, y, 1);
+					_BtnUp(1);
 					break;
 				case WM_MBUTTONUP:							
-					releaseCapture = true;
-					mIsMouseDown[2] = false;
-					mMouseUpFunc(this, x, y, 2);
+					_BtnUp(2);
 					break;			
 				case WM_MOUSEWHEEL:
 					{