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Mutable height and width #27

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Merged
merged 4 commits into from
Feb 23, 2021
Merged

Mutable height and width #27

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23c1549
mutable size
FoamyGuy Feb 1, 2021
5256dcf
resize function
FoamyGuy Feb 8, 2021
760084b
remove extra shape append
FoamyGuy Feb 8, 2021
119f638
try to truncate text instead of raising error if button is not big en…
FoamyGuy Feb 9, 2021
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161 changes: 112 additions & 49 deletions adafruit_button.py
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Original file line number Diff line number Diff line change
Expand Up @@ -58,8 +58,66 @@ class Button(displayio.Group):
:param selected_fill: Inverts the fill color.
:param selected_outline: Inverts the outline color.
:param selected_label: Inverts the label color.

"""

def _empty_self_group(self):
while len(self) > 0:
self.pop()

def _create_body(self):
if (self.outline_color is not None) or (self.fill_color is not None):
if self.style == Button.RECT:
self.body = Rect(
0,
0,
self.width,
self.height,
fill=self._fill_color,
outline=self._outline_color,
)
elif self.style == Button.ROUNDRECT:
self.body = RoundRect(
0,
0,
self.width,
self.height,
r=10,
fill=self._fill_color,
outline=self._outline_color,
)
elif self.style == Button.SHADOWRECT:
self.shadow = Rect(
2, 2, self.width - 2, self.height - 2, fill=self.outline_color
)
self.body = Rect(
0,
0,
self.width - 2,
self.height - 2,
fill=self._fill_color,
outline=self._outline_color,
)
elif self.style == Button.SHADOWROUNDRECT:
self.shadow = RoundRect(
2,
2,
self.width - 2,
self.height - 2,
r=10,
fill=self._outline_color,
)
self.body = RoundRect(
0,
0,
self.width - 2,
self.height - 2,
r=10,
fill=self._fill_color,
outline=self._outline_color,
)
if self.shadow:
self.append(self.shadow)

RECT = const(0)
ROUNDRECT = const(1)
SHADOWRECT = const(2)
Expand All @@ -86,13 +144,14 @@ def __init__(
super().__init__(x=x, y=y)
self.x = x
self.y = y
self.width = width
self.height = height
self._width = width
self._height = height
self._font = label_font
self._selected = False
self.name = name
self._label = label
self.body = self.fill = self.shadow = None
self.style = style

self._fill_color = _check_color(fill_color)
self._outline_color = _check_color(outline_color)
Expand All @@ -108,51 +167,8 @@ def __init__(
if self.selected_outline is None and outline_color is not None:
self.selected_outline = (~self._outline_color) & 0xFFFFFF

if (outline_color is not None) or (fill_color is not None):
if style == Button.RECT:
self.body = Rect(
0,
0,
width,
height,
fill=self._fill_color,
outline=self._outline_color,
)
elif style == Button.ROUNDRECT:
self.body = RoundRect(
0,
0,
width,
height,
r=10,
fill=self._fill_color,
outline=self._outline_color,
)
elif style == Button.SHADOWRECT:
self.shadow = Rect(2, 2, width - 2, height - 2, fill=outline_color)
self.body = Rect(
0,
0,
width - 2,
height - 2,
fill=self._fill_color,
outline=self._outline_color,
)
elif style == Button.SHADOWROUNDRECT:
self.shadow = RoundRect(
2, 2, width - 2, height - 2, r=10, fill=self._outline_color
)
self.body = RoundRect(
0,
0,
width - 2,
height - 2,
r=10,
fill=self._fill_color,
outline=self._outline_color,
)
if self.shadow:
self.append(self.shadow)
self._create_body()
if self.body:
self.append(self.body)

self.label = label
Expand All @@ -176,7 +192,13 @@ def label(self, newtext):
self._label = Label(self._label_font, text=newtext)
dims = self._label.bounding_box
if dims[2] >= self.width or dims[3] >= self.height:
raise RuntimeError("Button not large enough for label")
while len(self._label.text) > 1 and (
dims[2] >= self.width or dims[3] >= self.height
):
self._label.text = "{}.".format(self._label.text[:-2])
dims = self._label.bounding_box
if len(self._label.text) <= 1:
raise RuntimeError("Button not large enough for label")
self._label.x = (self.width - dims[2]) // 2
self._label.y = self.height // 2
self._label.color = self._label_color
Expand Down Expand Up @@ -291,3 +313,44 @@ def label_color(self):
def label_color(self, new_color):
self._label_color = _check_color(new_color)
self._label.color = self._label_color

@property
def width(self):
"""The width of the button"""
return self._width

@width.setter
def width(self, new_width):
self._width = new_width
self._empty_self_group()
self._create_body()
if self.body:
self.append(self.body)
self.label = self.label

@property
def height(self):
"""The height of the button"""
return self._height

@height.setter
def height(self, new_height):
self._height = new_height
self._empty_self_group()
self._create_body()
if self.body:
self.append(self.body)
self.label = self.label

def resize(self, new_width, new_height):
"""Resize the button to the new width and height given
:param new_width int the desired width
:param new_height int the desired height
"""
self._width = new_width
self._height = new_height
self._empty_self_group()
self._create_body()
if self.body:
self.append(self.body)
self.label = self.label