work on hiding widgetsv0.12.5

	When widgets are hidden, their state works exactly the same
	as normal, but updates are not sent to the toolkits

Signed-off-by: Jeff Carr <[email protected]>

1 files changed, 53 insertions, 18 deletions

diff --git a/structs.go b/structs.go
index 079cb6f..7139cea 100644
--- a/structs.go
+++ b/structs.go
@@ -27,14 +27,15 @@ var me guiConfig
 // almost all toolkits use integers so there doesn't
 // seem to be a good idea to use 'type any' here as it
 // just makes things more complicated for no good reason
-type Range struct {
+type RangeMovedToWidget struct {
 	Low int
 	High int
 }
 
-type List []string
+// type List []string
 
 type guiConfig struct {
+	// a toolkit requirement. never allow more than one per program
 	initOnce sync.Once
 
 	// This is the master node. The Binary Tree starts here
@@ -52,28 +53,69 @@ type guiConfig struct {
 	resFS	embed.FS
 
 	// used to beautify logging to Stdout
-	depth      int
-	prefix     string
+//	depth      int
+//	prefix     string
 }
 
-// The Node is a binary tree. This is how all GUI elements are stored
-// simply the name and the size of whatever GUI element exists
+/*
+	The Node is a binary tree. This is how all GUI elements are stored
+	simply the name and the size of whatever GUI element exists
+
+	value : most widgets need 1 value. this is it.
+		For a window -- the title. For a button -- the name
+
+	hidden : this means the widget is not displayed yet. In that
+		case, don't waste time trying to pass information to
+		the toolkits. This makes things efficient and fast if
+		the GUI does not have to display anything
+
+	Custom() : if the user does something like click on a button,
+		this function will be called. (this should probably
+		be renamed Callback()
+
+	progname : a short name to reference the widgets in the debugger
+		n.NewButton("click here to send it").SetProgName("SENT")
+
+	parent, children : the binary tree
+
+	pad, margin, expand : re-think these names and clarify
+
+*/
+
 type Node struct {
 	id	int // should be unique
-	hidden	bool // Sierpinski Carpet mode. It's there, but you can't see it.
-	pad	bool // the toolkit may use this. it's up to the toolkit
-	margin	bool // the toolkit may use this. it's up to the toolkit
-	expand	bool // the toolkit may use this. it's up to the toolkit
+	hidden	bool // don't update the toolkits when it's hidden
+	changed bool // do we need to inform the toolkit something changed?
+	enabled bool // if false, then the the user can't click on it
 
 	WidgetType	widget.WidgetType
 
-	// the current widget value.
+	// most widgets need one value, this is current alue
 	value	any
 
 	// this can programatically identify the widget
 	// The name must be unique
 	progname string  // a name useful for debugging
 
+	// for widgets that a user select from a list of strings
+	strings []string
+
+	// how to arrange widgets
+	direction widget.Orientation
+
+	// this function is run when there are mouse or keyboard events
+	Custom func()
+
+	parent	*Node
+	children []*Node
+
+
+	// RETHINK EVERYTHING BELOW HERE
+	pad	bool // the toolkit may use this. it's up to the toolkit
+	margin	bool // the toolkit may use this. it's up to the toolkit
+	expand	bool // the toolkit may use this. it's up to the toolkit
+
+
 	// used for Windows in toolkits measured in pixels
 	width  int
 	height int
@@ -95,11 +137,4 @@ type Node struct {
 	// if this widget is in a grid, this is the position of a widget
 	AtW	int
 	AtH	int
-
-
-	// this function is run when there are mouse or keyboard events
-	Custom func()
-
-	parent	*Node
-	children []*Node
 }