From 4b1ffb512542c33435c257dba38f44382e9e084a Mon Sep 17 00:00:00 2001
From: robin <robin.v@capybaragames.com>
Date: Mon, 21 Nov 2016 19:07:16 -0500
Subject: [PATCH] onScrollChanged event, get/set scroll position of sourcePage
 control

---
 server/wxLdb/ui/mainWindow.lua |  9 ++++++++-
 server/wxLdb/ui/sourcePage.lua | 18 +++++++++++++++++-
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/server/wxLdb/ui/mainWindow.lua b/server/wxLdb/ui/mainWindow.lua
index 459b017..5d9d176 100644
--- a/server/wxLdb/ui/mainWindow.lua
+++ b/server/wxLdb/ui/mainWindow.lua
@@ -66,7 +66,13 @@ function meta.__index:init()
 	self.idleUpdates = {}
 	self.frame:Connect( wx.wxEVT_IDLE, function( event ) self:onIdleUpdate_( event ) end )
 
-	self.events = { onBreakPointChanged = {}, onFileOpen = {}, onFileClosed = {}, onApplicationExiting = {} }
+	self.events = { 
+		onBreakPointChanged = {}, 
+		onFileOpen = {}, 
+		onFileClosed = {}, 
+		onApplicationExiting = {},
+		onScrollChanged = {}
+	}
 end
 
 function meta.__index:show( show )
@@ -272,6 +278,7 @@ function meta.__index:getSourcePage( source )
 		page.pageIdx = self.sourceBook:GetPageCount()
 		self.sourceBook:AddPage( page:getRoot(), name )
 		page:registerEvent( "onBreakPointChanged", function( ... ) self:runEvents_( "onBreakPointChanged", source, ... ) end )
+		page:registerEvent( "onScrollChanged", function( ... ) self:runEvents_( "onScrollChanged", source, ... ) end )
 	end
 	return page
 end
diff --git a/server/wxLdb/ui/sourcePage.lua b/server/wxLdb/ui/sourcePage.lua
index 42a9bfe..d426676 100644
--- a/server/wxLdb/ui/sourcePage.lua
+++ b/server/wxLdb/ui/sourcePage.lua
@@ -5,6 +5,8 @@ local ui =
 	editor = require( "ui.editor" ),
 }
 
+local wx = require( "wx" )
+
 local lfs = require( "lfs" )
 
 local assert = assert
@@ -23,7 +25,10 @@ function new( parent, source )
 	local page = {}
 	setmetatable( page, meta )
 	page.editor = ui.editor.new( parent )
-	page.events = { onBreakPointChanged = {} }
+	page.events = { 
+		onBreakPointChanged = {},
+		onScrollChanged = {},
+	}
 	page:setSource_( source )
 	page.editor.breakpointCallback = function( line )
 		page:runEvents_( "onBreakPointChanged", line )
@@ -53,6 +58,9 @@ function meta.__index:update()
 		assert( string.sub( self.source, 1, 1 ) == "@" )
 		local fileName = string.sub( self.source, 2 )
 		
+		local scrollPosition = self:GetScrollPos()
+		self:runEvents_( "onScrollChanged", scrollPosition )
+
 		local newDate = lfs.attributes( fileName, "modification" ) or 0
 		if newDate > self.sourceDate then
 			print( "reloading source file "..fileName )
@@ -78,6 +86,14 @@ function meta.__index:getFocus()
 	return ed:GetCurrentLine() + 1
 end
 
+function meta.__index:SetScrollPos( pos )
+	self.editor.editor:LineScroll(0, pos)
+end
+
+function meta.__index:GetScrollPos()
+	return self.editor.editor:GetScrollPos( wx.wxVERTICAL )
+end
+
 function meta.__index:setCurrentLine( line )
 	local editor = self.editor.editor
 	if self.currentLine == line then return end