mirror of
https://git.lynn.is/Gwen/python-layout.git
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64 lines
2.6 KiB
Python
64 lines
2.6 KiB
Python
from . import Layout, FlexDirection, FlexWrap, FlexJustify, FlexAlignItems, FlexAlignContent
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from .internal.flexlayouter import FlexLayouter
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from .internal.helpers import min_with_none, max_with_none
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class Flex(Layout):
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def __init__(
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self,
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contents=None,
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direction=FlexDirection.ROW,
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wrap=FlexWrap.NO_WRAP,
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justify=FlexJustify.START,
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align_items=FlexAlignItems.START,
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align_content=FlexAlignContent.START,
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gap=0,
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**kwargs
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):
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super().__init__(**kwargs)
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if contents is None:
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contents = []
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self.direction = direction
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self.wrap = wrap
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self.justify = justify
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self.align_items = align_items
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self.align_content = align_content
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self.gap = gap
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self.contents = contents
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self.flex_layouter = FlexLayouter(contents, gap, direction, wrap, justify, align_content, align_items)
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def children(self):
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return self.contents
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def get_min_inner_width(self, max_height=None):
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max_width = min_with_none(self.max_width, 0)
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width, _ = self.flex_layouter.get_dimensions(self.min_width, self.min_height, max_width,
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min_with_none(self.max_height, max_height))
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return width
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def get_min_inner_height(self, max_width=None):
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max_height = min_with_none(self.min_height, 0)
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_, height = self.flex_layouter.get_dimensions(self.min_width, self.min_height,
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min_with_none(self.max_width, max_width), max_height)
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return height
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def get_ideal_inner_dimensions(self, min_width=None, min_height=None, available_width=None, available_height=None):
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min_width = max_with_none(min_width, self.min_width)
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min_height = max_with_none(min_height, self.min_height)
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available_width = min_with_none(available_width, self.max_width, self.width)
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available_height = min_with_none(available_height, self.max_height, self.height)
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return self.flex_layouter.get_dimensions(min_width, min_height, available_width, available_height)
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def render_content(self, rect):
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image = self.make_canvas()
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x1, y1, x2, y2 = rect
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width = x2 - x1 + 1
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height = y2 - y1 + 1
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contents = self.flex_layouter.arrange(self.min_width, self.min_height, width, height)
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for (cx1, cy1, cx2, cy2), content in contents:
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content_image = content.render((cx1 + x1, cy1 + y1, cx2 + x1, cy2 + y1))
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image.alpha_composite(content_image)
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return image
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