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' Copyright (c) 2006 Ian Cowburn
'
' Permission is hereby granted, free of charge, to any person obtaining a copy of
' this software and associated documentation files (the "Software"), to deal in
' the Software without restriction, including without limitation the rights to
' use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
' of the Software, and to permit persons to whom the Software is furnished to do
' so, subject to the following conditions:
'
' The above copyright notice and this permission notice shall be included in all
' copies or substantial portions of the Software.
'
' THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
' IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
' FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
' AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
' LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
' OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
' SOFTWARE.
'
' $Id$
'
Rem
bbdoc: noddybox.showlicense
EndRem
Module noddybox.showlicense
ModuleInfo "Framework: License acceptance routines"
ModuleInfo "Copyright: Ian Cowburn -- released under the MIT License"
ModuleInfo "Author: Ian Cowburn"
ModuleInfo "Version: $Revision$"
Strict
Import brl.max2d
Import brl.stream
Import brl.basic
Import brl.linkedlist
Rem
bbdoc: Displays a license for the user to accept.
returns: True if the license is accepted, false otherwise.
about: The license stored in text format at the URL @short_license is displayed with a title of @title.
If the URL @full_license is not null then the user is provided with an option to display that too.
The width of text in the license files must fit on the screen...
EndRem
Function ShowLicense:Int(title:String, short_license:String, full_license:String)
Local accepted:Int=False
Local license:TLicense=New TLicense
If full_license
license.Init(title,short_license,["ACCEPT","DECLINE","VIEW FULL LICENSE"])
Else
license.Init(title,short_license,["ACCEPT","DECLINE"])
EndIf
Select license.Show()
Case 0
accepted=True
Case 1
Case 2
license=New TLicense
license.Init(title,full_license,["ACCEPT","DECLINE"])
If (license.Show()=0)
accepted=True
End If
End Select
Return accepted
End Function
Private
Type TLicense
Field top:Int
Field bottom:Int
Field list:TList
Field item:TLink
Field title:String
Field opts:String[]
Field sel:Int
Field col:Int
Field coli:Int
Method New()
End Method
Method Centre(s:String, y:Int)
DrawText(s,(GraphicsWidth()-TextWidth(s))/2,y)
End Method
Method MaxHeight:Int()
Return TextHeight("X")
End Method
Method Init(t:String, u:String, o:String[])
Local str:TStream=ReadStream(u)
Assert str,"Unable to open help file"
list=CreateList()
While Not str.Eof()
list.AddLast(str.ReadLine())
Wend
str.Close()
title=t
item=list.FirstLink()
top=MaxHeight()*2
bottom=GraphicsHeight()-MaxHeight()*3
opts=o
sel=0
col=255
coli=-5
End Method
Method Draw()
Local y:Int=top+1
Local i:TLink=item
While y<bottom And i
Local s:String=String(i.Value())
DrawText(s,0,y)
y:+TextHeight(s)
i=i.NextLink()
Wend
SetColor(0,0,0)
DrawRect(0,0,GraphicsWidth(),top)
DrawRect(0,bottom,GraphicsWidth(),GraphicsHeight()-bottom)
SetColor(255,255,255)
DrawLine(0,TOP,GraphicsWidth(),TOP)
DrawLine(0,BOTTOM,GraphicsWidth(),BOTTOM)
Centre(title,MaxHeight()/2)
Centre("CURSORS VIEW AND CHOOSE. RETURN SELECTS.",bottom+MaxHeight()/2)
Local x:Int=0
y=GraphicsHeight()-MaxHeight()
For Local f:Int=0 Until opts.length
If f=sel
SetColor(col/2,col/2,128+col)
DrawRect(x,y,TextWidth(opts[f]),MaxHeight())
SetColor(255,255,255)
EndIf
DrawText(opts[f],x,y)
x:+TextWidth(opts[f])+20
Next
col:+coli
If col<128 Or col>255
coli=-coli
col:+coli
EndIf
End Method
Method Current:String()
Return String(item.Value())
End Method
Method Show:Int()
Local done:Int=False
FlushKeys()
While Not done
Cls
Draw()
If KeyDown(KEY_DOWN)
If item.NextLink()
item=item.NextLink()
EndIf
ElseIf KeyDown(KEY_UP)
If item.PrevLink()
item=item.PrevLink()
EndIf
ElseIf KeyHit(KEY_LEFT)
sel=Max(0,sel-1)
ElseIf KeyHit(KEY_RIGHT)
sel=Min(opts.length-1,sel+1)
ElseIf KeyHit(KEY_RETURN)
done=True
EndIf
Flip
Wend
FlushKeys()
Return sel
End Method
End Type
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