353 lines
13 KiB
Rust
353 lines
13 KiB
Rust
use galaxyui::elements::{Expanded, Shrinkable};
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use galaxyui::fonts::FamilyId;
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use galaxyui::SingletonEntity as _;
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use galaxyui::{
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elements::{
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Border, ConstrainedBox, Container, Flex, MainAxisAlignment, MainAxisSize, ParentElement,
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Rect, Stack, Text,
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},
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AppContext, Element, Entity, TypedActionView, View, ViewContext,
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};
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use galaxyui::color::ColorU;
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pub struct RootView {
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font_family: FamilyId,
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}
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impl RootView {
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pub fn new(ctx: &mut ViewContext<Self>) -> Self {
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let font_family = galaxyui::fonts::Cache::handle(ctx)
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.update(ctx, |cache, _| cache.load_system_font("Arial").unwrap());
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RootView { font_family }
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}
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fn make_label(&self, label: String) -> Box<dyn Element> {
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Flex::row()
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.with_child(Text::new_inline(label, self.font_family, 16.).finish())
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.finish()
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}
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fn make_expanded_row(&self) -> Flex {
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Flex::row()
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.with_child(
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Container::new(
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ConstrainedBox::new(
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Text::new_inline("Fixed 100", self.font_family, 16.).finish(),
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)
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.with_width(100.)
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.with_height(50.)
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.finish(),
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)
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.with_background_color(ColorU::new(255, 0, 0, 255))
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.finish(),
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)
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.with_child(
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Expanded::new(
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1.0,
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Container::new(
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ConstrainedBox::new(
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Text::new_inline("Max Width 500, Min 200", self.font_family, 16.)
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.finish(),
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)
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.with_max_width(500.)
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.with_min_width(200.)
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.with_height(50.)
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.finish(),
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)
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.with_background_color(ColorU::new(0, 150, 0, 255))
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.finish(),
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)
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.finish(),
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)
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.with_child(
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Container::new(
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ConstrainedBox::new(
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Text::new_inline("Fixed 100", self.font_family, 16.).finish(),
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)
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.with_width(100.)
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.with_height(50.)
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.finish(),
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)
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.with_background_color(ColorU::new(0, 0, 255, 255))
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.finish(),
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)
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.with_main_axis_size(MainAxisSize::Max)
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}
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fn make_shrinkable_row(&self) -> Flex {
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Flex::row()
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.with_child(
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Container::new(
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ConstrainedBox::new(
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Text::new_inline("Fixed 100", self.font_family, 16.).finish(),
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)
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.with_width(100.)
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.with_height(50.)
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.finish(),
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)
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.with_background_color(ColorU::new(255, 0, 0, 255))
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.finish(),
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)
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.with_child(
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Shrinkable::new(
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1.0,
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Container::new(
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ConstrainedBox::new(
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Text::new_inline("Max Width 500, Min 200", self.font_family, 16.)
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.finish(),
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)
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.with_max_width(500.)
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.with_min_width(200.)
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.with_height(50.)
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.finish(),
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)
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.with_background_color(ColorU::new(0, 150, 0, 255))
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.finish(),
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)
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.finish(),
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)
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.with_child(
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Container::new(
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ConstrainedBox::new(
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Text::new_inline("Fixed 100", self.font_family, 16.).finish(),
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)
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.with_width(100.)
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.with_height(50.)
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.finish(),
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)
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.with_background_color(ColorU::new(0, 0, 255, 255))
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.finish(),
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)
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.with_main_axis_size(MainAxisSize::Max)
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}
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fn make_multiple_expanded_row(&self) -> Flex {
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Flex::row()
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.with_child(
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Expanded::new(
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3.0,
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Container::new(Text::new_inline("Flex: 3.0", self.font_family, 16.).finish())
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.with_background_color(ColorU::new(255, 0, 0, 255))
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.finish(),
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)
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.finish(),
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)
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.with_child(
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Expanded::new(
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1.0,
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Container::new(Text::new_inline("Flex: 1.0", self.font_family, 16.).finish())
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.with_background_color(ColorU::new(0, 150, 0, 255))
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.finish(),
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)
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.finish(),
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)
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.with_child(
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Expanded::new(
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2.0,
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Container::new(Text::new_inline("Flex: 2.0", self.font_family, 16.).finish())
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.with_background_color(ColorU::new(0, 0, 255, 255))
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.finish(),
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)
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.finish(),
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)
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.with_main_axis_size(MainAxisSize::Max)
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}
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fn make_multiple_expanded_with_constraints_row(&self) -> Flex {
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Flex::row()
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.with_child(
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Expanded::new(
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1.0,
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Container::new(
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ConstrainedBox::new(
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Text::new_inline("Min 100, Max 200", self.font_family, 16.).finish(),
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)
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.with_max_width(200.)
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.with_min_width(100.)
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.with_height(50.)
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.finish(),
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)
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.with_background_color(ColorU::new(255, 0, 0, 255))
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.finish(),
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)
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.finish(),
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)
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.with_child(
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Expanded::new(
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1.0,
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Container::new(
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ConstrainedBox::new(
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Text::new_inline("Min 100, Max 200", self.font_family, 16.).finish(),
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)
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.with_max_width(200.)
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.with_min_width(100.)
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.with_height(50.)
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.finish(),
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)
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.with_background_color(ColorU::new(0, 150, 0, 255))
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.finish(),
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)
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.finish(),
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)
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.with_child(
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Expanded::new(
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1.0,
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Container::new(
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ConstrainedBox::new(
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Text::new_inline("Min 100, Max 200", self.font_family, 16.).finish(),
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)
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.with_max_width(200.)
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.with_min_width(100.)
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.finish(),
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)
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.with_background_color(ColorU::new(0, 0, 255, 255))
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.finish(),
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)
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.finish(),
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)
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.with_main_axis_size(MainAxisSize::Min)
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}
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fn make_multiple_expanded_with_constraints_varying_flex_row(&self) -> Flex {
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Flex::row()
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.with_child(
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Expanded::new(
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3.0,
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Container::new(
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ConstrainedBox::new(
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Text::new_inline("Min 100, Max 200, Flex: 3.0", self.font_family, 16.)
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.finish(),
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)
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.with_max_width(200.)
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.with_min_width(100.)
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.with_height(50.)
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.finish(),
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)
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.with_background_color(ColorU::new(255, 0, 0, 255))
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.finish(),
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)
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.finish(),
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)
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.with_child(
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Expanded::new(
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1.0,
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Container::new(
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ConstrainedBox::new(
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Text::new_inline("Min 100, Max 200, Flex: 1.0", self.font_family, 16.)
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.finish(),
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)
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.with_max_width(200.)
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.with_min_width(100.)
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.with_height(50.)
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.finish(),
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)
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.with_background_color(ColorU::new(0, 150, 0, 255))
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.finish(),
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)
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.finish(),
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)
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.with_child(
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Expanded::new(
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2.0,
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Container::new(
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ConstrainedBox::new(
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Text::new_inline("Min 100, Max 200, Flex: 2.0", self.font_family, 16.)
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.finish(),
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)
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.with_max_width(200.)
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.with_min_width(100.)
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.finish(),
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)
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.with_background_color(ColorU::new(0, 0, 255, 255))
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.finish(),
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)
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.finish(),
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)
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.with_main_axis_size(MainAxisSize::Min)
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}
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}
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impl Entity for RootView {
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type Event = ();
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}
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impl View for RootView {
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fn ui_name() -> &'static str {
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"RootView"
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}
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// Let's render a simple black rect background.
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fn render(&self, _: &AppContext) -> Box<dyn Element> {
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let row_expanded = Container::new(
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self.make_expanded_row()
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.with_main_axis_alignment(MainAxisAlignment::Start)
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.finish(),
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)
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.with_border(Border::all(2.).with_border_color(ColorU::white()))
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.finish();
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let row_shrinkable = Container::new(
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self.make_shrinkable_row()
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.with_main_axis_alignment(MainAxisAlignment::Start)
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.finish(),
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)
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.with_margin_bottom(32.)
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.with_border(Border::all(2.).with_border_color(ColorU::white()))
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.finish();
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let multiple_expanded_row = Container::new(
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self.make_multiple_expanded_row()
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.with_main_axis_alignment(MainAxisAlignment::Start)
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.finish(),
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)
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.with_border(Border::all(2.).with_border_color(ColorU::white()))
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.finish();
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let multiple_expanded_with_constraints_row = Container::new(
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self.make_multiple_expanded_with_constraints_row()
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.with_main_axis_alignment(MainAxisAlignment::Start)
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.finish(),
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)
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.with_border(Border::all(2.).with_border_color(ColorU::white()))
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.finish();
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let multiple_expanded_with_constraints_varying_flex_row = Container::new(
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self.make_multiple_expanded_with_constraints_varying_flex_row()
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.with_main_axis_alignment(MainAxisAlignment::Start)
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.finish(),
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)
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.with_border(Border::all(2.).with_border_color(ColorU::white()))
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.finish();
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Stack::new()
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.with_child(Rect::new().with_background_color(ColorU::black()).finish())
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.with_child(
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Container::new(
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Flex::column()
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.with_child(self.make_label("Expanded - FlexFit::Tight".to_owned()))
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.with_child(row_expanded)
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.with_child(
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self.make_label(
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"Shrinkable (Old Expanded) - FlexFit::Loose ".to_owned(),
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),
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)
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.with_child(row_shrinkable)
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.with_child(self.make_label("Multiple Expanded with varying flex amounts".to_owned()))
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.with_child(multiple_expanded_row)
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.with_child(self.make_label("Multiple Expanded with constraints in Flex with MainAxisSize::Min".to_owned()))
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.with_child(multiple_expanded_with_constraints_row)
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.with_child(self.make_label("Multiple Expanded with constraints and varying flex amounts in Flex with MainAxisSize::Min".to_owned()))
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.with_child(self.make_label("Note that this results in children beginning to shrink at different times and rates".to_owned()))
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.with_child(multiple_expanded_with_constraints_varying_flex_row)
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.finish(),
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)
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.with_margin_top(32.)
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.finish(),
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)
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.finish()
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}
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}
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impl TypedActionView for RootView {
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type Action = ();
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}
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