uxn/projects/examples/gui/hover.usm

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( GUI Hover )
%RTN { JMP2r }
( devices )
|00 @System [ &vector $2 &pad $6 &r $2 &g $2 &b $2 ]
|20 @Screen [ &vector $2 &width $2 &height $2 &pad $2 &x $2 &y $2 &addr $2 &color $1 ]
|90 @Mouse [ &vector $2 &x $2 &y $2 &state $1 &chord $1 ]
( variables )
|0000
@color [ &byte $1 ]
@pointer [ &x $2 &y $2 &sprite $2 ]
@rect [ &x1 $2 &y1 $2 &x2 $2 &y2 $2 ]
@r1 [ &x1 $2 &y1 $2 &x2 $2 &y2 $2 ]
@r2 [ &x1 $2 &y1 $2 &x2 $2 &y2 $2 ]
@r3 [ &x1 $2 &y1 $2 &x2 $2 &y2 $2 ]
( program )
|0100
( theme ) #0f0f .System/r DEO2 #0fff .System/g DEO2 #0ff0 .System/b DEO2
( vectors ) ;on-mouse .Mouse/vector DEO2
#0020 #0030 #0060 #0060 .r1/y2 POK2 .r1/x2 POK2 .r1/y1 POK2 .r1/x1 POK2
#0058 #0050 #0090 #0080 .r2/y2 POK2 .r2/x2 POK2 .r2/y1 POK2 .r2/x1 POK2
#0048 #0048 #0080 #0098 .r3/y2 POK2 .r3/x2 POK2 .r3/y1 POK2 .r3/x1 POK2
( no BRK, run through to on-mouse )
@on-mouse
;pointer_icn .pointer/sprite POK2
#01 .color POK
( matrix comparison )
.Mouse/x DEI2 .r1/x1 PEK2 GTH2 .Mouse/x DEI2 .r1/x2 PEK2 LTH2 #0101 EQU2
.Mouse/y DEI2 .r1/y1 PEK2 GTH2 .Mouse/y DEI2 .r1/y2 PEK2 LTH2 #0101 EQU2
#0101 NEQ2 ,&draw1 JNZ #02 .color POK ;hand_icn .pointer/sprite POK2
&draw1 .r1/x1 PEK2 .r1/y1 PEK2 .r1/x2 PEK2 .r1/y2 PEK2 .color PEK ;line-rect JSR2
#01 .color POK
( 2-step comparison )
.Mouse/x DEI2 .r2/x1 PEK2 GTH2 .Mouse/x DEI2 .r2/x2 PEK2 LTH2 #0101 NEQ2 ,&draw2 JNZ
.Mouse/y DEI2 .r2/y1 PEK2 GTH2 .Mouse/y DEI2 .r2/y2 PEK2 LTH2 #0101 NEQ2 ,&draw2 JNZ
#03 .color POK ;hand_icn .pointer/sprite POK2
&draw2 .r2/x1 PEK2 .r2/y1 PEK2 .r2/x2 PEK2 .r2/y2 PEK2 .color PEK ;line-rect JSR2
#01 .color POK
( 4-step comparison )
.Mouse/x DEI2 .r3/x1 PEK2 LTH2 ,&draw3 JNZ
.Mouse/x DEI2 .r3/x2 PEK2 GTH2 ,&draw3 JNZ
.Mouse/y DEI2 .r3/y1 PEK2 LTH2 ,&draw3 JNZ
.Mouse/y DEI2 .r3/y2 PEK2 GTH2 ,&draw3 JNZ
#02 .color POK ;hand_icn .pointer/sprite POK2
&draw3 .r3/x1 PEK2 .r3/y1 PEK2 .r3/x2 PEK2 .r3/y2 PEK2 .color PEK ;line-rect JSR2
;draw-cursor JSR2
BRK
@draw-cursor
( clear last cursor )
;clear_icn .Screen/addr DEO2
.pointer/x PEK2 .Screen/x DEO2
.pointer/y PEK2 .Screen/y DEO2
#30 .Screen/color DEO
( record pointer positions )
.Mouse/x DEI2 .pointer/x POK2 .Mouse/y DEI2 .pointer/y POK2
( draw new cursor )
.pointer/sprite PEK2 .Screen/addr DEO2
.pointer/x PEK2 .Screen/x DEO2
.pointer/y PEK2 .Screen/y DEO2
#31 .Screen/color DEO
RTN
@line-rect ( x1 y1 x2 y2 color )
( load ) .color POK .rect/y2 POK2 .rect/x2 POK2 DUP2 .Screen/y DEO2 .rect/y1 POK2 DUP2 .Screen/x DEO2 .rect/x1 POK2
&hor
( incr ) .Screen/x DEI2 #0001 ADD2 .Screen/x DEO2
( draw ) .rect/y1 PEK2 .Screen/y DEO2 .color PEK .Screen/color DEO
( draw ) .rect/y2 PEK2 .Screen/y DEO2 .color PEK .Screen/color DEO
.Screen/x DEI2 .rect/x2 PEK2 LTH2 ,&hor JNZ
.rect/y1 PEK2 .Screen/y DEO2
&ver
( draw ) .rect/x1 PEK2 .Screen/x DEO2 .color PEK .Screen/color DEO
( draw ) .rect/x2 PEK2 .Screen/x DEO2 .color PEK .Screen/color DEO
( incr ) .Screen/y DEI2 #0001 ADD2 .Screen/y DEO2
.Screen/y DEI2 .rect/y2 PEK2 #0001 ADD2 LTH2 ,&ver JNZ
RTN
@clear_icn [ 0000 0000 0000 0000 ]
@pointer_icn [ 80c0 e0f0 f8e0 1000 ]
@hand_icn [ 4040 4070 f8f8 f870 ]