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IconButton.spin2
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IconButton.spin2
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{
Button Object
}
CON
DEBOUNCE_TIMER = 500
#0, NORMAL_MODE, TOGGLE_MODE
VAR
'Attributes
long id 'Unique ID - (window index << 4)|(button index)
long bg_color 'background color
long fg_color 'foreground color
long ol_color 'outline = border
word xtop 'Top Left X (Pixel)
word ytop 'Top Left Y (Pixel)
word xbot 'Bottom Right X (Pixel)
word ybot 'Bottom Right Y (Pixel)
byte border_width 'Border width in pixels
'Method Pointers
long event_handler 'Default event handler method pointer
'Internal state variables
long last_time 'Stores touch event debouncer last time value
byte configured 'Boolean flag to identify configured widgets in the window's list
byte enabled 'Boolean flag to indicate widget can be drawn and can check for events
byte value 'Virtual value of the widget
byte active_value
byte inactive_value
'Button specific attributes
byte mode 'Mode: 0 = Normal (no debouncing, value = active_value while event is true)
'Mode: 1 = Toggle (debouncing, value toggles on successive events)
byte invert_border 'Boolean flag to invert border colors
'Image
long image_pointer 'Address of image in hub memory
byte image_width
byte image_height
byte darken_factor
OBJ
color : "Colors"
util : "Utilities"
graphics : "Graphics"
PUB null()
''+--------------------------------------------------------------------+
'' WIDGET INTERFACE METHODS
''+--------------------------------------------------------------------+
PUB set_enable(e)
if e
enabled := true
else
enabled := false
PUB draw()| w, h, tw, th, x, y
''This method draws the graphical representation of this widget type
if enabled AND image_pointer <> 0
'FILL
'graphics.fill_rectangle(xtop+border_width,ytop+border_width,xbot-border_width,ybot-border_width,bg_color)
'BORDER
util.draw_border(xtop,ytop,xbot,ybot,ol_color,border_width,invert_border)
'Image
if image_pointer <> 0
w := (xbot-xtop) - border_width*2
h := (ybot-ytop) - border_width*2
x := xtop + border_width + (w - image_width)/2
y := ytop + border_width + (h - image_height)/2
if value == active_value
util.draw_image(image_pointer, xtop+border_width, ytop+border_width, image_width, image_height, bg_color)
else
util.draw_darken_image(image_pointer, xtop+border_width, ytop+border_width, image_width, image_height, bg_color, darken_factor)
PUB check_event(coord):is_mine | x, y
if configured AND enabled
x := coord.WORD[0]
y := coord.WORD[1]
if (x >= xtop AND x <= xbot) AND (y >= ytop AND y <= ybot)
is_mine := true
'debug("event at ", udec(id))
if (getms()-last_time) >= DEBOUNCE_TIMER 'debounce the event
if mode == TOGGLE_MODE 'Toggle or Event Mode
value := (value==inactive_value)?active_value:inactive_value
if event_handler <> 0
event_handler(id, value) 'call the event handler and pass along id of button and current value
last_time := getms() 'reset debounce timer
''+--------------------------------------------------------------------+
'' CONFIGURATION METHODS
''+--------------------------------------------------------------------+
PUB configure(i, xt, yt, bg, fg, ol)
id := i
xtop := xt
ytop := yt
xbot := xt+image_width
ybot := yt+image_width
bg_color := bg
fg_color := fg
ol_color := ol
border_width := 0
active_value := true
inactive_value := false
darken_factor := 8
configured := true
last_time := getms()
PUB is_configured():conf
conf := configured
PUB set_coordinates(xt, yt, xb, yb)
xtop := xt
ytop := yt
xbot := xb
ybot := yb
PUB get_coordinates() : coords
coords.BYTE[0] := xtop
coords.BYTE[1] := ytop
coords.BYTE[2] := xbot
coords.BYTE[3] := ybot
PUB set_colors(bg, fg, ol)
bg_color := bg
fg_color := fg
ol_color := ol
PUB get_colors(): bg, fg, ol
bg := bg_color
fg := fg_color
ol := ol_color
''+--------------------------------------------------------------------+
'' EVENT HANDLING METHODS
''+--------------------------------------------------------------------+
PUB set_event_handler(Method)
event_handler := Method 'Sets the default event handler of this object
PUB call_event_handler(Method)
Method(id) 'Calls a passed event handler
''+--------------------------------------------------------------------+
'' OTHER METHODS
''+--------------------------------------------------------------------+
PUB set_values(a,i)
active_value := a
inactive_value := i
PUB set_value(v)
value := v
PUB get_value():v
v := value
PUB set_invert(i)
invert_border := i
PUB set_mode(m)
mode := m
PUB set_border_width(bw)
border_width := bw
''+--------------------------------------------------------------------+
'' IMAGE METHODS
''+--------------------------------------------------------------------+
PUB set_image(img, w, h)
image_pointer := img
image_width := w
image_height := h
PUB set_darken_factor(f)
darken_factor := f