OpenEuphoria

2. Re: XControls move splitter programatically

• Posted by Jonas Temple <jtemple at yhti.net> Jan 29, 2005
• 433 views

Tony Steward wrote:
> 
> Hi Greg or anyone who can help,
> I want to save the splitter position when my app closes and when run
> again to come back the same size. I can do this if I do it at the time
> of creation, but I want to do it after I have created all the other
> screen items so they can automatically resize to suite.
> 
> So is it possible to move/resize the windows/panes programatically?
> If so how?
> 
Tony,

I do this via a EDB table that I store in the program's directory.  Here's 
the routine in it's entirety:

-- Open and process the user configuration file
procedure openCfgFile()

	db_opened = False
	-- Opent the db file
	db_result = db_open(FROGCFGFILE, DB_LOCK_EXCLUSIVE)
	-- If couldn't open try to create
	if db_result != DB_OK then
		db_result = db_create(FROGCFGFILE, DB_LOCK_EXCLUSIVE)
		-- File opened
		if db_result = DB_OK then
			db_opened = True
			db_result = db_create_table(FROGCFGTABLE)
			db_result = db_create_table(FROGSYSCFGTABLE)
		end if
	-- File opened
	else
		-- Attempt to select the system config table and if not found create
		db_result = db_select_table(FROGSYSCFGTABLE)
		if db_result != DB_OK then
			db_result = db_create_table(FROGSYSCFGTABLE)
		end if
		-- Select the config table
		db_result = db_select_table(FROGCFGTABLE)
		if db_result = DB_OK then
			db_opened = True
		end if
	end if

	-- Was the db opened?
	if db_opened then
		-- Get the current PC user
		local_user = GetUserName()
		-- Look for a record by user
		rec_num = db_find_key(local_user)
		-- Record found?
		if rec_num > 0 then
			-- Get the record data
			rec_data = db_record_data(rec_num)
			-- Set the main window's size and placment and the
			-- size of the main window panes
			left_pane_width = rec_data[LEFT_PANE_WIDTH]
			right_pane_height = rec_data[RIGHT_PANE_HEIGHT]
			window_mode = rec_data[WINDOW_MODE]
			window_x = rec_data[WINDOW_X]
			window_y = rec_data[WINDOW_Y]
			-- If window mode is maximized then calculate the
			-- window's normal size
			if window_mode = Maximized then
				window_width = floor(rec_data[WINDOW_WIDTH] * .5)
				window_height = floor(rec_data[WINDOW_HEIGHT] * .5)
			-- Else the window is not maximized, accpet size as-is
			else
				window_width = rec_data[WINDOW_WIDTH]
				window_height = rec_data[WINDOW_HEIGHT]
			end if
			-- If we have user preferences
			if length(rec_data) > LOAD_INIT_PAGE then
				load_initial = rec_data[LOAD_INIT_PAGE]
				font_name = rec_data[MAIN_FONT_NAME]
				font_size = rec_data[MAIN_FONT_SIZE]
				rec_threshold = rec_data[THRESHOLD]
			else
				load_initial = True
				font_name = {}
				font_size = 0
				rec_threshold = 5000
			end if
			-- Check for enter executes sql setting
			if length(rec_data) >= ENTER_EXEC_SQL then
				enter_exec_sql = rec_data[ENTER_EXEC_SQL]
			else
				enter_exec_sql = True
			end if
			-- Check for force signon
			if length(rec_data) >= FORCE_SIGNON then
				force_signon = rec_data[FORCE_SIGNON]
			else
				force_signon = True
			end if
		-- Record not found, flag that the file was not opened
		else
			db_opened = False
		end if

		-- Load the system configuration tables
		db_result = db_select_table(FROGSYSCFGTABLE)
		-- Look for a record by user
		rec_num = db_find_key(local_user)
		-- Record found?
		if rec_num > 0 then
			-- Get the record data
			rec_data = db_record_data(rec_num)
			sys_cfg_names = rec_data[SYSCFG_NAMES]
			sys_cfg_data = rec_data[SYSCFG_DATA]			
		else
			sys_cfg_names = {}
			sys_cfg_data = {}
		end if
		-- close the config file
		db_close()
	end if
	
	-- If the file was not opened then default the screen dimensions
	if not db_opened then
		left_pane_width = 200
		right_pane_height = 300
		window_mode = Maximized
		window_x = .25
		window_y = .25
		window_width = .5
		window_height = .5
		load_initial = True
		font_name = {}
		font_size = 0
		rec_threshold = 5000
		enter_exec_sql = True
		force_signon = True
	end if	
	
end procedure

openCfgFile()

The above routine is called BEFORE any calls to createEx.  Then I create 
my main window:

--  Window Main
global constant Main = createEx( Window, "F.R.O.G. for IBM iSeries DB2", 0,
	window_x, window_y, window_width, window_height, 0, 0 )

Then, in the section of my program where it creates the xControls:

constant MainGMID = xControl( Geometry, "", Main, 0, 0, 0, 0, 0, 0),
        MainLS = xControl( LimitSize, "", Main, 400, 400, 0, 0, 0, 0 ),
paneLeft = create(Window, "", Main, 0, 0, 0, 0,
        {WS_CHILD,WS_VISIBLE,WS_CLIPSIBLINGS} ),
vsplit = xControl( VSplitter, "", Main, left_pane_width, 0, 0, 0, 0,
        MainGMID ),
paneRight = create(Window, "", Main, 0, 0, 0, 0,
        {WS_CHILD,WS_VISIBLE,WS_CLIPSIBLINGS} )
        manage(MainGMID, paneLeft, {0,5}, {0,5}, {vsplit,0}, {1.0,0})
        manage(MainGMID, paneRight, {vsplit,0}, {0,5}, {1.0,-5}, {1.0,0})
        manage(MainGMID, MainTB, {0, 0}, {0, 0}, {1, 0}, {0, 34})

constant LeftGMID = xControl( Geometry, "", paneLeft, 0, 0, 0, 0, 0, 0 )
global constant MainTV = createEx( TreeView, "", paneLeft, 0, 0, 0, 0,
or_all({TVS_HASLINES,TVS_LINESATROOT,TVS_HASBUTTONS,TVS_SHOWSELALWAYS,TVS_INFOTIP}),
0 )
removeStyle(MainTV, WS_BORDER)
manage( LeftGMID, MainTV, {0, 0}, {0, 0}, {1.0,0}, {1.0,-5} )

constant RightGMID = xControl( Geometry, "", paneRight, 0, 0, 0, 0, 0, 0),
paneTop = create(Window, "", paneRight, 0, 0, 0, 0,
        {WS_CHILD,WS_VISIBLE,WS_CLIPSIBLINGS} ),
hsplit = xControl( HSplitter, "", paneRight, 0, right_pane_height, 0, 0,
        0, RightGMID ),
paneBottom = create(Window, "", paneRight, 0, 0, 0, 0,
        {WS_CHILD,WS_VISIBLE,WS_CLIPSIBLINGS} )
        manage (RightGMID, paneTop, {0,0}, {0,0}, {1.0,0}, {hsplit,0})
        manage (RightGMID, paneBottom, {0,0}, {hsplit,0}, {1.0,0}, {1.0,0})

Note that I only track the left pane width and the right pane height.  

Then when my program closes, I save the current dimensions with:

-- Open the config database again and save the window size/style
	db_result = db_open(FROGCFGFILE, DB_LOCK_EXCLUSIVE)
	if db_result = DB_OK then
		db_result = db_select_table(FROGCFGTABLE)
		if db_result = DB_OK then
			rec_num = db_find_key(local_user)
			main_rect = getWindowRect(Main)
			left_rect = getWindowRect(paneLeft)
			top_rect = getWindowRect(paneTop)
			if isMaximized(Main) then
				maximized = Maximize
			else
				maximized = Normal
			end if
			rec_data = {left_rect[3] - left_rect[1],
				top_rect[4] - top_rect[2],
				maximized, main_rect[1], main_rect[2],
				main_rect[3] - main_rect[1], 
				main_rect[4] - main_rect[2],
				load_initial, font_name, font_size, rec_threshold,
				enter_exec_sql, force_signon}
			if rec_num > 0 then
				db_replace_data(rec_num, rec_data)
			else
				void = db_insert(local_user, rec_data)
			end if
		end if

Clear as mud?

Jonas Temple
http://www.yhti.net/~jktemple

4. Re: XControls move splitter programatically

• Posted by Jonas Temple <jtemple at yhti.net> Jan 29, 2005
• 429 views
• Last edited Jan 30, 2005

Greg Haberek wrote:
> 
> > Clear as mud?
> 
> Crystal.  I'll look into adding moveSplitter() or something of the
> sort to automagically move the splitter at run time, not just set the
> size at creation time.
> 
> The funny thing is, if you download Don's original splitter control
> (vertical only), it allowed for "padding" around the splitter and
> adjustable splitter size, neither of which is included in xControls.
> The padding can be accomplished with Geometry, and I'll add the
> adjustable splitter size later. I should start working on that soon,
> but I'm graduating in 6 weeks so all my attention is on my networking
> project. All programming is currently on hold until March 9th.
> 
> ~Greg
While you're at it, can you improve the library to have a window with 
three controls split by two splitters, with each splitter not able to 
cross over the other?

:)

Jonas Temple
http://www.yhti.net/~jktemple

6. Re: XControls move splitter programatically

• Posted by Greg Haberek <ghaberek at gmail.com> Jan 30, 2005
• 431 views

> While you're at it, can you improve the library to have a window with
> three controls split by two splitters, with each splitter not able to
> cross over the other?

Sure, I'll call it XSplitter. It may take some time to develop. I
think I may change the approach to creating panes and splitters, it
does seem a bit convoluted. Until then, here's a little routine I
whipped up to make attaching a pane to a splitter a bit easier.
Remember to call manage_now() after you've attached all panes. This
will be in the next xControls to make it easier to attach panes to an
XSplitter (cross-splitter) by adding values (Top+Left, etc.).

global constant
    Left =  1,
    Top =  2,
    Right =  4,
    Bottom =  8

global procedure attachPane( integer pGeom, integer pPane,
    integer pSplit, integer pPosition )

    sequence pos1, pos2, pos3, pos4

    pos1 = {0,0} -- left edge
    pos2 = {0,0} -- top edge
    pos3 = {1.0,0} -- right edge
    pos4 = {1.0,0} -- bottom edge

    if and_bits( pPosition, Left ) then
        pos3 = {pSplit,0}
    elsif and_bits( pPosition, Top ) then
        pos4 = {pSplit,0}
    elsif and_bits( pPosition, Right ) then
        pos1 = {pSplit,0}
    elsif and_bits( pPosition, Bottom ) then
        pos2 = {pSplit,0}
    end if

    manage( pGeom, pPane, pos1, pos2, pos3, pos4 )

end procedure