TriOS-alt/system/bellatrix/vga-gui/RadioCheck.spin

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2010-11-26 23:58:06 +01:00
<EFBFBD><EFBFBD>'' ===========================================================================
'' VGA High-Res Text UI Elements Base UI Support Functions v1.2
''
'' File: RadioCheck.spin
'' Author: Allen Marincak
'' Copyright (c) 2009 Allen MArincak
'' See end of file for terms of use
'' ===========================================================================
''
''============================================================================
'' Button Control
''============================================================================
''
'' Creates Radio Buttons or Check Boxes
''
VAR
word varGdx 'GUI control variable
long varScreenPtr 'screen buffer pointer
long varVgaPos 'start location of the button
byte varTextN[16] 'normal text, 15 chars MAX, with room for terminating Null
byte varTextI[16] 'inverted text, 15 chars MAX, with room for terminating Null
byte varRow 'top row location
byte varCol 'left col location
byte varCol2 'right col location
byte varWidth 'width of text
byte varStatus 'status byte 0 = none 1 = active
byte varSelChar 'selected character
byte varUnselChar 'unselected character
byte varVgaCols 'width of screen in columns
PUB Init( pRow, pCol, pTextWidth, pStyle, pTextPtr, pVgaPtr, pVgaWidth ) | strIdx, vgaIdx
varVgaCols := pVgaWidth
varStatus := 0
varRow := pRow
varCol := pCol
varWidth := pTextWidth
varScreenPtr := pVgaPtr
varVgaPos := varRow * varVgaCols + varCol
varCol2 := varCol + varWidth + 1
if pStyle == 0
varSelChar := 7 'CheckBox Style
varUnselChar := 6
else
varSelChar := 5 'Radio Button Style
varUnselChar := 4
strIdx := strsize( pTextPtr )
bytemove( @varTextN, pTextPtr, strIdx ) 'copy checkbox text string
bytefill(@varTextN[strIdx],32,pTextWidth-strIdx) 'pad out with spaces
varTextN[pTextWidth] := 0
strIdx := 0
repeat pTextWidth
varTextI[strIdx] := varTextN[strIdx]+128 'create inverted string
strIdx++
varTextI[strIdx] := 0
vgaIdx := varVgaPos 'now draw the checkbox
byte[varScreenPtr][vgaIdx++] := varUnselChar 'empty bullet
byte[varScreenPtr][vgaIdx++] := 32
strIdx := strsize( @varTextN )
bytemove( @byte[varScreenPtr][vgaIdx], @varTextN, strIdx )
PUB DrawText( pMode ) | strIdx, vgaIdx
strIdx := strsize( @varTextN )
vgaIdx := varVgaPos 'bullet location
if varStatus == 1
byte[varScreenPtr][vgaIdx] := varSelChar 'selected bullet
else
byte[varScreenPtr][vgaIdx] := varUnselChar 'non-selected bullet
vgaIdx += 2 'checkbox text location
if pMode & 1
bytemove( @byte[varScreenPtr][vgaIdx], @varTextI, strIdx )
else
bytemove( @byte[varScreenPtr][vgaIdx], @varTextN, strIdx )
PUB IsIn( pCx, pCy ) | retVal
retVal := false
if ( pCx => varCol ) AND ( pCx =< varCol2 )
if pCy == varRow
retVal := true
return retVal
PUB Select( pSel )
if pSel <> -1
varStatus := pSel
else
if varStatus == 0
varStatus := 1
else
varStatus := 0
if varStatus == 1
byte[varScreenPtr][varVgaPos] := varSelChar 'selected bullet
else
byte[varScreenPtr][varVgaPos] := varUnselChar 'non-selected
PUB IsSet
if varStatus == 1
return true
else
return false
PUB set_gzidx( gzidx )
varGdx := gzidx
PUB get_gzidx
return varGdx
{{
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% TERMS OF USE: MIT License %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%$%
%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. %
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
}}