145 lines
5.6 KiB
Python
145 lines
5.6 KiB
Python
# The MIT License (MIT)
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#
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# Copyright (c) 2019 Limor Fried for Adafruit Industries
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#
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# Permission is hereby granted, free of charge, to any person obtaining a copy
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# of this software and associated documentation files (the "Software"), to deal
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# in the Software without restriction, including without limitation the rights
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# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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# copies of the Software, and to permit persons to whom the Software is
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# furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice shall be included in
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# all copies or substantial portions of the Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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# THE SOFTWARE.
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"""
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`adafruit_display_button`
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================================================================================
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UI Buttons for displayio
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* Author(s): Limor Fried
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Implementation Notes
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--------------------
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**Software and Dependencies:**
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* Adafruit CircuitPython firmware for the supported boards:
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https://github.com/adafruit/circuitpython/releases
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"""
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import displayio
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from adafruit_display_text.text_area import TextArea
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from adafruit_bitmap_font import bitmap_font
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from adafruit_display_shapes.rect import Rect
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from adafruit_display_shapes.roundrect import RoundRect
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__version__ = "0.0.0-auto.0"
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__repo__ = "https://github.com/adafruit/Adafruit_CircuitPython_Display_Button.git"
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class Button():
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RECT = const(0)
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ROUNDRECT = const(1)
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SHADOWRECT = const(2)
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SHADOWROUNDRECT = const(3)
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def __init__(self, *, x, y, width, height, name=None, style=RECT,
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fill_color=0xFFFFFF, outline_color=0x0,
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label=None, label_font=None, label_color=0x0,
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selected_fill=None, selected_outline=None,
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selected_label=None):
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self.x = x
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self.y = y
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self.width = width
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self.height = height
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self._font = label_font
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self._selected = False
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self.group = displayio.Group()
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self.name = name
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self.fill_color = fill_color
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self.outline_color = outline_color
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self.label_color = label_color
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# Selecting inverts the button colors!
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self.selected_fill = selected_fill
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self.selected_outline = selected_outline
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self.selected_label = selected_label
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if self.selected_fill is None and fill_color is not None:
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self.selected_fill = (~fill_color) & 0xFFFFFF
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if self.selected_outline is None and outline_color is not None:
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self.selected_outline = (~outline_color) & 0xFFFFFF
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if outline_color or fill_color:
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self.body = self.shadow = None
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if style == RECT:
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self.body = Rect(x, y, width, height,
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fill=fill_color, outline=outline_color)
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elif style == ROUNDRECT:
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self.body = RoundRect(x, y, width, height, r=10,
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fill=fill_color, outline=outline_color)
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elif style == SHADOWRECT:
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self.shadow = Rect(x+2, y+2, width-2, height-2,
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fill=outline_color)
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self.body = Rect(x, y, width-2, height-2,
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fill=fill_color, outline=outline_color)
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elif style == SHADOWROUNDRECT:
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self.shadow = RoundRect(x+2, y+2, width-2, height-2, r=10,
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fill=outline_color)
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self.body = RoundRect(x, y, width-2, height-2, r=10,
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fill=fill_color, outline=outline_color)
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if self.shadow:
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self.group.append(self.shadow)
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self.group.append(self.body)
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if label and (label_color is not None): # button with text label
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if not label_font:
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raise RuntimeError("Please provide label font")
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dims = label_font.text_bounding_box(label)
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if dims[2] >= width or dims[3] >= height:
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raise RuntimeError("Button not large enough for label")
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self.label = TextArea(label_font, text=label)
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self.label.x = x + (width - dims[2])//2
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self.label.y = y + (height - dims[3])
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self.label.color = label_color
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self.group.append(self.label)
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if self.selected_label is None and label_color is not None:
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self.selected_label = (~label_color) & 0xFFFFFF
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#print(dims)
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"""
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#else: # ok just a bounding box
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#self.bodyshape = displayio.Shape(width, height)
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#self.group.append(self.bodyshape)
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"""
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@property
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def selected(self):
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return self._selected
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@selected.setter
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def selected(self, value):
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if value != self._selected:
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self._selected = value
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if self._selected:
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self.body.fill = self.selected_fill
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self.body.outline = self.selected_outline
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self.label.color = self.selected_label
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else:
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self.body.fill = self.fill_color
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self.body.outline = self.outline_color
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self.label.color = self.label_color
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def contains(self, point):
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return (self.x <= point[0] <= self.x+self.width) and (self.y <= point[1] <= self.y+self.height)
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