diff options
author | 2020-05-19 14:23:28 +0200 | |
---|---|---|
committer | 2020-05-19 14:23:28 +0200 | |
commit | d4743183d40c6044ce6fa39e2a52919a32912cda (patch) | |
tree | d2dec81cd9b419262cf2aa57ad793895ccacb320 /glow/src/renderer | |
parent | 33448508a524db6447b380cc236be6f0d5ca8a86 (diff) | |
download | iced-d4743183d40c6044ce6fa39e2a52919a32912cda.tar.gz iced-d4743183d40c6044ce6fa39e2a52919a32912cda.tar.bz2 iced-d4743183d40c6044ce6fa39e2a52919a32912cda.zip |
Draft first working version of `iced_glow` :tada:
Diffstat (limited to 'glow/src/renderer')
-rw-r--r-- | glow/src/renderer/widget.rs | 19 | ||||
-rw-r--r-- | glow/src/renderer/widget/button.rs | 93 | ||||
-rw-r--r-- | glow/src/renderer/widget/checkbox.rs | 63 | ||||
-rw-r--r-- | glow/src/renderer/widget/column.rs | 34 | ||||
-rw-r--r-- | glow/src/renderer/widget/container.rs | 48 | ||||
-rw-r--r-- | glow/src/renderer/widget/image.rs | 22 | ||||
-rw-r--r-- | glow/src/renderer/widget/pane_grid.rs | 93 | ||||
-rw-r--r-- | glow/src/renderer/widget/progress_bar.rs | 54 | ||||
-rw-r--r-- | glow/src/renderer/widget/radio.rs | 63 | ||||
-rw-r--r-- | glow/src/renderer/widget/row.rs | 34 | ||||
-rw-r--r-- | glow/src/renderer/widget/scrollable.rs | 125 | ||||
-rw-r--r-- | glow/src/renderer/widget/slider.rs | 106 | ||||
-rw-r--r-- | glow/src/renderer/widget/space.rs | 8 | ||||
-rw-r--r-- | glow/src/renderer/widget/svg.rs | 22 | ||||
-rw-r--r-- | glow/src/renderer/widget/text.rs | 61 | ||||
-rw-r--r-- | glow/src/renderer/widget/text_input.rs | 261 |
16 files changed, 1106 insertions, 0 deletions
diff --git a/glow/src/renderer/widget.rs b/glow/src/renderer/widget.rs new file mode 100644 index 00000000..37421fbe --- /dev/null +++ b/glow/src/renderer/widget.rs @@ -0,0 +1,19 @@ +mod button; +mod checkbox; +mod column; +mod container; +mod pane_grid; +mod progress_bar; +mod radio; +mod row; +mod scrollable; +mod slider; +mod space; +mod text; +mod text_input; + +#[cfg(feature = "svg")] +mod svg; + +#[cfg(feature = "image")] +mod image; diff --git a/glow/src/renderer/widget/button.rs b/glow/src/renderer/widget/button.rs new file mode 100644 index 00000000..eb225038 --- /dev/null +++ b/glow/src/renderer/widget/button.rs @@ -0,0 +1,93 @@ +use crate::{button::StyleSheet, defaults, Defaults, Primitive, Renderer}; +use iced_native::{ + mouse, Background, Color, Element, Layout, Point, Rectangle, Vector, +}; + +impl iced_native::button::Renderer for Renderer { + const DEFAULT_PADDING: u16 = 5; + + type Style = Box<dyn StyleSheet>; + + fn draw<Message>( + &mut self, + _defaults: &Defaults, + bounds: Rectangle, + cursor_position: Point, + is_disabled: bool, + is_pressed: bool, + style: &Box<dyn StyleSheet>, + content: &Element<'_, Message, Self>, + content_layout: Layout<'_>, + ) -> Self::Output { + let is_mouse_over = bounds.contains(cursor_position); + + let styling = if is_disabled { + style.disabled() + } else if is_mouse_over { + if is_pressed { + style.pressed() + } else { + style.hovered() + } + } else { + style.active() + }; + + let (content, _) = content.draw( + self, + &Defaults { + text: defaults::Text { + color: styling.text_color, + }, + }, + content_layout, + cursor_position, + ); + + ( + if styling.background.is_some() || styling.border_width > 0 { + let background = Primitive::Quad { + bounds, + background: styling + .background + .unwrap_or(Background::Color(Color::TRANSPARENT)), + border_radius: styling.border_radius, + border_width: styling.border_width, + border_color: styling.border_color, + }; + + if styling.shadow_offset == Vector::default() { + Primitive::Group { + primitives: vec![background, content], + } + } else { + // TODO: Implement proper shadow support + let shadow = Primitive::Quad { + bounds: Rectangle { + x: bounds.x + styling.shadow_offset.x, + y: bounds.y + styling.shadow_offset.y, + ..bounds + }, + background: Background::Color( + [0.0, 0.0, 0.0, 0.5].into(), + ), + border_radius: styling.border_radius, + border_width: 0, + border_color: Color::TRANSPARENT, + }; + + Primitive::Group { + primitives: vec![shadow, background, content], + } + } + } else { + content + }, + if is_mouse_over { + mouse::Interaction::Pointer + } else { + mouse::Interaction::default() + }, + ) + } +} diff --git a/glow/src/renderer/widget/checkbox.rs b/glow/src/renderer/widget/checkbox.rs new file mode 100644 index 00000000..0340bf62 --- /dev/null +++ b/glow/src/renderer/widget/checkbox.rs @@ -0,0 +1,63 @@ +use crate::{checkbox::StyleSheet, Primitive, Renderer}; +use iced_native::{ + checkbox, mouse, HorizontalAlignment, Rectangle, VerticalAlignment, +}; + +impl checkbox::Renderer for Renderer { + type Style = Box<dyn StyleSheet>; + + const DEFAULT_SIZE: u16 = 20; + const DEFAULT_SPACING: u16 = 15; + + fn draw( + &mut self, + bounds: Rectangle, + is_checked: bool, + is_mouse_over: bool, + (label, _): Self::Output, + style_sheet: &Self::Style, + ) -> Self::Output { + let style = if is_mouse_over { + style_sheet.hovered(is_checked) + } else { + style_sheet.active(is_checked) + }; + + let checkbox = Primitive::Quad { + bounds, + background: style.background, + border_radius: style.border_radius, + border_width: style.border_width, + border_color: style.border_color, + }; + + ( + Primitive::Group { + primitives: if is_checked { + let check = Primitive::Text { + content: crate::text::CHECKMARK_ICON.to_string(), + font: crate::text::BUILTIN_ICONS, + size: bounds.height * 0.7, + bounds: Rectangle { + x: bounds.center_x(), + y: bounds.center_y(), + ..bounds + }, + color: style.checkmark_color, + horizontal_alignment: HorizontalAlignment::Center, + vertical_alignment: VerticalAlignment::Center, + }; + + vec![checkbox, check, label] + } else { + vec![checkbox, label] + }, + }, + if is_mouse_over { + mouse::Interaction::Pointer + } else { + mouse::Interaction::default() + }, + ) + } +} diff --git a/glow/src/renderer/widget/column.rs b/glow/src/renderer/widget/column.rs new file mode 100644 index 00000000..b853276d --- /dev/null +++ b/glow/src/renderer/widget/column.rs @@ -0,0 +1,34 @@ +use crate::{Primitive, Renderer}; +use iced_native::{column, mouse, Element, Layout, Point}; + +impl column::Renderer for Renderer { + fn draw<Message>( + &mut self, + defaults: &Self::Defaults, + content: &[Element<'_, Message, Self>], + layout: Layout<'_>, + cursor_position: Point, + ) -> Self::Output { + let mut mouse_interaction = mouse::Interaction::default(); + + ( + Primitive::Group { + primitives: content + .iter() + .zip(layout.children()) + .map(|(child, layout)| { + let (primitive, new_mouse_interaction) = + child.draw(self, defaults, layout, cursor_position); + + if new_mouse_interaction > mouse_interaction { + mouse_interaction = new_mouse_interaction; + } + + primitive + }) + .collect(), + }, + mouse_interaction, + ) + } +} diff --git a/glow/src/renderer/widget/container.rs b/glow/src/renderer/widget/container.rs new file mode 100644 index 00000000..30cc3f07 --- /dev/null +++ b/glow/src/renderer/widget/container.rs @@ -0,0 +1,48 @@ +use crate::{container, defaults, Defaults, Primitive, Renderer}; +use iced_native::{Background, Color, Element, Layout, Point, Rectangle}; + +impl iced_native::container::Renderer for Renderer { + type Style = Box<dyn container::StyleSheet>; + + fn draw<Message>( + &mut self, + defaults: &Defaults, + bounds: Rectangle, + cursor_position: Point, + style_sheet: &Self::Style, + content: &Element<'_, Message, Self>, + content_layout: Layout<'_>, + ) -> Self::Output { + let style = style_sheet.style(); + + let defaults = Defaults { + text: defaults::Text { + color: style.text_color.unwrap_or(defaults.text.color), + }, + }; + + let (content, mouse_interaction) = + content.draw(self, &defaults, content_layout, cursor_position); + + if style.background.is_some() || style.border_width > 0 { + let quad = Primitive::Quad { + bounds, + background: style + .background + .unwrap_or(Background::Color(Color::TRANSPARENT)), + border_radius: style.border_radius, + border_width: style.border_width, + border_color: style.border_color, + }; + + ( + Primitive::Group { + primitives: vec![quad, content], + }, + mouse_interaction, + ) + } else { + (content, mouse_interaction) + } + } +} diff --git a/glow/src/renderer/widget/image.rs b/glow/src/renderer/widget/image.rs new file mode 100644 index 00000000..c4c04984 --- /dev/null +++ b/glow/src/renderer/widget/image.rs @@ -0,0 +1,22 @@ +use crate::{Primitive, Renderer}; +use iced_native::{image, mouse, Layout}; + +impl image::Renderer for Renderer { + fn dimensions(&self, handle: &image::Handle) -> (u32, u32) { + self.image_pipeline.dimensions(handle) + } + + fn draw( + &mut self, + handle: image::Handle, + layout: Layout<'_>, + ) -> Self::Output { + ( + Primitive::Image { + handle, + bounds: layout.bounds(), + }, + mouse::Interaction::default(), + ) + } +} diff --git a/glow/src/renderer/widget/pane_grid.rs b/glow/src/renderer/widget/pane_grid.rs new file mode 100644 index 00000000..2253e4af --- /dev/null +++ b/glow/src/renderer/widget/pane_grid.rs @@ -0,0 +1,93 @@ +use crate::{Primitive, Renderer}; +use iced_native::{ + mouse, + pane_grid::{self, Axis, Pane}, + Element, Layout, Point, Rectangle, Vector, +}; + +impl pane_grid::Renderer for Renderer { + fn draw<Message>( + &mut self, + defaults: &Self::Defaults, + content: &[(Pane, Element<'_, Message, Self>)], + dragging: Option<Pane>, + resizing: Option<Axis>, + layout: Layout<'_>, + cursor_position: Point, + ) -> Self::Output { + let pane_cursor_position = if dragging.is_some() { + // TODO: Remove once cursor availability is encoded in the type + // system + Point::new(-1.0, -1.0) + } else { + cursor_position + }; + + let mut mouse_interaction = mouse::Interaction::default(); + let mut dragged_pane = None; + + let mut panes: Vec<_> = content + .iter() + .zip(layout.children()) + .enumerate() + .map(|(i, ((id, pane), layout))| { + let (primitive, new_mouse_interaction) = + pane.draw(self, defaults, layout, pane_cursor_position); + + if new_mouse_interaction > mouse_interaction { + mouse_interaction = new_mouse_interaction; + } + + if Some(*id) == dragging { + dragged_pane = Some((i, layout)); + } + + primitive + }) + .collect(); + + let primitives = if let Some((index, layout)) = dragged_pane { + let pane = panes.remove(index); + let bounds = layout.bounds(); + + // TODO: Fix once proper layering is implemented. + // This is a pretty hacky way to achieve layering. + let clip = Primitive::Clip { + bounds: Rectangle { + x: cursor_position.x - bounds.width / 2.0, + y: cursor_position.y - bounds.height / 2.0, + width: bounds.width + 0.5, + height: bounds.height + 0.5, + }, + offset: Vector::new(0, 0), + content: Box::new(Primitive::Translate { + translation: Vector::new( + cursor_position.x - bounds.x - bounds.width / 2.0, + cursor_position.y - bounds.y - bounds.height / 2.0, + ), + content: Box::new(pane), + }), + }; + + panes.push(clip); + + panes + } else { + panes + }; + + ( + Primitive::Group { primitives }, + if dragging.is_some() { + mouse::Interaction::Grabbing + } else if let Some(axis) = resizing { + match axis { + Axis::Horizontal => mouse::Interaction::ResizingVertically, + Axis::Vertical => mouse::Interaction::ResizingHorizontally, + } + } else { + mouse_interaction + }, + ) + } +} diff --git a/glow/src/renderer/widget/progress_bar.rs b/glow/src/renderer/widget/progress_bar.rs new file mode 100644 index 00000000..2baeeb14 --- /dev/null +++ b/glow/src/renderer/widget/progress_bar.rs @@ -0,0 +1,54 @@ +use crate::{progress_bar::StyleSheet, Primitive, Renderer}; +use iced_native::{mouse, progress_bar, Color, Rectangle}; + +impl progress_bar::Renderer for Renderer { + type Style = Box<dyn StyleSheet>; + + const DEFAULT_HEIGHT: u16 = 30; + + fn draw( + &self, + bounds: Rectangle, + range: std::ops::RangeInclusive<f32>, + value: f32, + style_sheet: &Self::Style, + ) -> Self::Output { + let style = style_sheet.style(); + + let (range_start, range_end) = range.into_inner(); + let active_progress_width = bounds.width + * ((value - range_start) / (range_end - range_start).max(1.0)); + + let background = Primitive::Group { + primitives: vec![Primitive::Quad { + bounds: Rectangle { ..bounds }, + background: style.background, + border_radius: style.border_radius, + border_width: 0, + border_color: Color::TRANSPARENT, + }], + }; + + ( + if active_progress_width > 0.0 { + let bar = Primitive::Quad { + bounds: Rectangle { + width: active_progress_width, + ..bounds + }, + background: style.bar, + border_radius: style.border_radius, + border_width: 0, + border_color: Color::TRANSPARENT, + }; + + Primitive::Group { + primitives: vec![background, bar], + } + } else { + background + }, + mouse::Interaction::default(), + ) + } +} diff --git a/glow/src/renderer/widget/radio.rs b/glow/src/renderer/widget/radio.rs new file mode 100644 index 00000000..cee0deb6 --- /dev/null +++ b/glow/src/renderer/widget/radio.rs @@ -0,0 +1,63 @@ +use crate::{radio::StyleSheet, Primitive, Renderer}; +use iced_native::{mouse, radio, Background, Color, Rectangle}; + +const SIZE: f32 = 28.0; +const DOT_SIZE: f32 = SIZE / 2.0; + +impl radio::Renderer for Renderer { + type Style = Box<dyn StyleSheet>; + + const DEFAULT_SIZE: u16 = SIZE as u16; + const DEFAULT_SPACING: u16 = 15; + + fn draw( + &mut self, + bounds: Rectangle, + is_selected: bool, + is_mouse_over: bool, + (label, _): Self::Output, + style_sheet: &Self::Style, + ) -> Self::Output { + let style = if is_mouse_over { + style_sheet.hovered() + } else { + style_sheet.active() + }; + + let radio = Primitive::Quad { + bounds, + background: style.background, + border_radius: (SIZE / 2.0) as u16, + border_width: style.border_width, + border_color: style.border_color, + }; + + ( + Primitive::Group { + primitives: if is_selected { + let radio_circle = Primitive::Quad { + bounds: Rectangle { + x: bounds.x + DOT_SIZE / 2.0, + y: bounds.y + DOT_SIZE / 2.0, + width: bounds.width - DOT_SIZE, + height: bounds.height - DOT_SIZE, + }, + background: Background::Color(style.dot_color), + border_radius: (DOT_SIZE / 2.0) as u16, + border_width: 0, + border_color: Color::TRANSPARENT, + }; + + vec![radio, radio_circle, label] + } else { + vec![radio, label] + }, + }, + if is_mouse_over { + mouse::Interaction::Pointer + } else { + mouse::Interaction::default() + }, + ) + } +} diff --git a/glow/src/renderer/widget/row.rs b/glow/src/renderer/widget/row.rs new file mode 100644 index 00000000..d0b7ef09 --- /dev/null +++ b/glow/src/renderer/widget/row.rs @@ -0,0 +1,34 @@ +use crate::{Primitive, Renderer}; +use iced_native::{mouse, row, Element, Layout, Point}; + +impl row::Renderer for Renderer { + fn draw<Message>( + &mut self, + defaults: &Self::Defaults, + children: &[Element<'_, Message, Self>], + layout: Layout<'_>, + cursor_position: Point, + ) -> Self::Output { + let mut mouse_interaction = mouse::Interaction::default(); + + ( + Primitive::Group { + primitives: children + .iter() + .zip(layout.children()) + .map(|(child, layout)| { + let (primitive, new_mouse_interaction) = + child.draw(self, defaults, layout, cursor_position); + + if new_mouse_interaction > mouse_interaction { + mouse_interaction = new_mouse_interaction; + } + + primitive + }) + .collect(), + }, + mouse_interaction, + ) + } +} diff --git a/glow/src/renderer/widget/scrollable.rs b/glow/src/renderer/widget/scrollable.rs new file mode 100644 index 00000000..8a400b82 --- /dev/null +++ b/glow/src/renderer/widget/scrollable.rs @@ -0,0 +1,125 @@ +use crate::{Primitive, Renderer}; +use iced_native::{mouse, scrollable, Background, Color, Rectangle, Vector}; + +const SCROLLBAR_WIDTH: u16 = 10; +const SCROLLBAR_MARGIN: u16 = 2; + +impl scrollable::Renderer for Renderer { + type Style = Box<dyn iced_style::scrollable::StyleSheet>; + + fn scrollbar( + &self, + bounds: Rectangle, + content_bounds: Rectangle, + offset: u32, + ) -> Option<scrollable::Scrollbar> { + if content_bounds.height > bounds.height { + let scrollbar_bounds = Rectangle { + x: bounds.x + bounds.width + - f32::from(SCROLLBAR_WIDTH + 2 * SCROLLBAR_MARGIN), + y: bounds.y, + width: f32::from(SCROLLBAR_WIDTH + 2 * SCROLLBAR_MARGIN), + height: bounds.height, + }; + + let ratio = bounds.height / content_bounds.height; + let scrollbar_height = bounds.height * ratio; + let y_offset = offset as f32 * ratio; + + let scroller_bounds = Rectangle { + x: scrollbar_bounds.x + f32::from(SCROLLBAR_MARGIN), + y: scrollbar_bounds.y + y_offset, + width: scrollbar_bounds.width - f32::from(2 * SCROLLBAR_MARGIN), + height: scrollbar_height, + }; + + Some(scrollable::Scrollbar { + bounds: scrollbar_bounds, + scroller: scrollable::Scroller { + bounds: scroller_bounds, + }, + }) + } else { + None + } + } + + fn draw( + &mut self, + state: &scrollable::State, + bounds: Rectangle, + _content_bounds: Rectangle, + is_mouse_over: bool, + is_mouse_over_scrollbar: bool, + scrollbar: Option<scrollable::Scrollbar>, + offset: u32, + style_sheet: &Self::Style, + (content, mouse_interaction): Self::Output, + ) -> Self::Output { + ( + if let Some(scrollbar) = scrollbar { + let clip = Primitive::Clip { + bounds, + offset: Vector::new(0, offset), + content: Box::new(content), + }; + + let style = if state.is_scroller_grabbed() { + style_sheet.dragging() + } else if is_mouse_over_scrollbar { + style_sheet.hovered() + } else { + style_sheet.active() + }; + + let is_scrollbar_visible = + style.background.is_some() || style.border_width > 0; + + let scroller = if is_mouse_over + || state.is_scroller_grabbed() + || is_scrollbar_visible + { + Primitive::Quad { + bounds: scrollbar.scroller.bounds, + background: Background::Color(style.scroller.color), + border_radius: style.scroller.border_radius, + border_width: style.scroller.border_width, + border_color: style.scroller.border_color, + } + } else { + Primitive::None + }; + + let scrollbar = if is_scrollbar_visible { + Primitive::Quad { + bounds: Rectangle { + x: scrollbar.bounds.x + f32::from(SCROLLBAR_MARGIN), + width: scrollbar.bounds.width + - f32::from(2 * SCROLLBAR_MARGIN), + ..scrollbar.bounds + }, + background: style + .background + .unwrap_or(Background::Color(Color::TRANSPARENT)), + border_radius: style.border_radius, + border_width: style.border_width, + border_color: style.border_color, + } + } else { + Primitive::None + }; + + Primitive::Group { + primitives: vec![clip, scrollbar, scroller], + } + } else { + content + }, + if is_mouse_over_scrollbar || state.is_scroller_grabbed() { + mouse::Interaction::Idle + } else { + mouse_interaction + }, + ) + } +} diff --git a/glow/src/renderer/widget/slider.rs b/glow/src/renderer/widget/slider.rs new file mode 100644 index 00000000..220feace --- /dev/null +++ b/glow/src/renderer/widget/slider.rs @@ -0,0 +1,106 @@ +use crate::{ + slider::{HandleShape, StyleSheet}, + Primitive, Renderer, +}; +use iced_native::{mouse, slider, Background, Color, Point, Rectangle}; + +const HANDLE_HEIGHT: f32 = 22.0; + +impl slider::Renderer for Renderer { + type Style = Box<dyn StyleSheet>; + + fn height(&self) -> u32 { + 30 + } + + fn draw( + &mut self, + bounds: Rectangle, + cursor_position: Point, + range: std::ops::RangeInclusive<f32>, + value: f32, + is_dragging: bool, + style_sheet: &Self::Style, + ) -> Self::Output { + let is_mouse_over = bounds.contains(cursor_position); + + let style = if is_dragging { + style_sheet.dragging() + } else if is_mouse_over { + style_sheet.hovered() + } else { + style_sheet.active() + }; + + let rail_y = bounds.y + (bounds.height / 2.0).round(); + + let (rail_top, rail_bottom) = ( + Primitive::Quad { + bounds: Rectangle { + x: bounds.x, + y: rail_y, + width: bounds.width, + height: 2.0, + }, + background: Background::Color(style.rail_colors.0), + border_radius: 0, + border_width: 0, + border_color: Color::TRANSPARENT, + }, + Primitive::Quad { + bounds: Rectangle { + x: bounds.x, + y: rail_y + 2.0, + width: bounds.width, + height: 2.0, + }, + background: Background::Color(style.rail_colors.1), + border_radius: 0, + border_width: 0, + border_color: Color::TRANSPARENT, + }, + ); + + let (range_start, range_end) = range.into_inner(); + + let (handle_width, handle_height, handle_border_radius) = + match style.handle.shape { + HandleShape::Circle { radius } => { + (f32::from(radius * 2), f32::from(radius * 2), radius) + } + HandleShape::Rectangle { + width, + border_radius, + } => (f32::from(width), HANDLE_HEIGHT, border_radius), + }; + + let handle_offset = (bounds.width - handle_width) + * ((value - range_start) / (range_end - range_start).max(1.0)); + + let handle = Primitive::Quad { + bounds: Rectangle { + x: bounds.x + handle_offset.round(), + y: rail_y - handle_height / 2.0, + width: handle_width, + height: handle_height, + }, + background: Background::Color(style.handle.color), + border_radius: handle_border_radius, + border_width: style.handle.border_width, + border_color: style.handle.border_color, + }; + + ( + Primitive::Group { + primitives: vec![rail_top, rail_bottom, handle], + }, + if is_dragging { + mouse::Interaction::Grabbing + } else if is_mouse_over { + mouse::Interaction::Grab + } else { + mouse::Interaction::default() + }, + ) + } +} diff --git a/glow/src/renderer/widget/space.rs b/glow/src/renderer/widget/space.rs new file mode 100644 index 00000000..225f7e6c --- /dev/null +++ b/glow/src/renderer/widget/space.rs @@ -0,0 +1,8 @@ +use crate::{Primitive, Renderer}; +use iced_native::{mouse, space, Rectangle}; + +impl space::Renderer for Renderer { + fn draw(&mut self, _bounds: Rectangle) -> Self::Output { + (Primitive::None, mouse::Interaction::default()) + } +} diff --git a/glow/src/renderer/widget/svg.rs b/glow/src/renderer/widget/svg.rs new file mode 100644 index 00000000..f6d6d0ba --- /dev/null +++ b/glow/src/renderer/widget/svg.rs @@ -0,0 +1,22 @@ +use crate::{Primitive, Renderer}; +use iced_native::{mouse, svg, Layout}; + +impl svg::Renderer for Renderer { + fn dimensions(&self, handle: &svg::Handle) -> (u32, u32) { + self.image_pipeline.viewport_dimensions(handle) + } + + fn draw( + &mut self, + handle: svg::Handle, + layout: Layout<'_>, + ) -> Self::Output { + ( + Primitive::Svg { + handle, + bounds: layout.bounds(), + }, + mouse::Interaction::default(), + ) + } +} diff --git a/glow/src/renderer/widget/text.rs b/glow/src/renderer/widget/text.rs new file mode 100644 index 00000000..4605ed06 --- /dev/null +++ b/glow/src/renderer/widget/text.rs @@ -0,0 +1,61 @@ +use crate::{Primitive, Renderer}; +use iced_native::{ + mouse, text, Color, Font, HorizontalAlignment, Rectangle, Size, + VerticalAlignment, +}; + +use std::f32; + +impl text::Renderer for Renderer { + type Font = Font; + + const DEFAULT_SIZE: u16 = 20; + + fn measure( + &self, + content: &str, + size: u16, + font: Font, + bounds: Size, + ) -> (f32, f32) { + self.text_pipeline + .measure(content, f32::from(size), font, bounds) + } + + fn draw( + &mut self, + defaults: &Self::Defaults, + bounds: Rectangle, + content: &str, + size: u16, + font: Font, + color: Option<Color>, + horizontal_alignment: HorizontalAlignment, + vertical_alignment: VerticalAlignment, + ) -> Self::Output { + let x = match horizontal_alignment { + iced_native::HorizontalAlignment::Left => bounds.x, + iced_native::HorizontalAlignment::Center => bounds.center_x(), + iced_native::HorizontalAlignment::Right => bounds.x + bounds.width, + }; + + let y = match vertical_alignment { + iced_native::VerticalAlignment::Top => bounds.y, + iced_native::VerticalAlignment::Center => bounds.center_y(), + iced_native::VerticalAlignment::Bottom => bounds.y + bounds.height, + }; + + ( + Primitive::Text { + content: content.to_string(), + size: f32::from(size), + bounds: Rectangle { x, y, ..bounds }, + color: color.unwrap_or(defaults.text.color), + font, + horizontal_alignment, + vertical_alignment, + }, + mouse::Interaction::default(), + ) + } +} diff --git a/glow/src/renderer/widget/text_input.rs b/glow/src/renderer/widget/text_input.rs new file mode 100644 index 00000000..57be6692 --- /dev/null +++ b/glow/src/renderer/widget/text_input.rs @@ -0,0 +1,261 @@ +use crate::{text_input::StyleSheet, Primitive, Renderer}; + +use iced_native::{ + mouse, + text_input::{self, cursor}, + Background, Color, Font, HorizontalAlignment, Point, Rectangle, Size, + Vector, VerticalAlignment, +}; +use std::f32; + +impl text_input::Renderer for Renderer { + type Style = Box<dyn StyleSheet>; + + fn default_size(&self) -> u16 { + // TODO: Make this configurable + 20 + } + + fn measure_value(&self, value: &str, size: u16, font: Font) -> f32 { + let (mut width, _) = self.text_pipeline.measure( + value, + f32::from(size), + font, + Size::INFINITY, + ); + + let spaces_around = value.len() - value.trim().len(); + + if spaces_around > 0 { + let space_width = self.text_pipeline.space_width(size as f32); + width += spaces_around as f32 * space_width; + } + + width + } + + fn offset( + &self, + text_bounds: Rectangle, + font: Font, + size: u16, + value: &text_input::Value, + state: &text_input::State, + ) -> f32 { + if state.is_focused() { + let cursor = state.cursor(); + + let focus_position = match cursor.state(value) { + cursor::State::Index(i) => i, + cursor::State::Selection { end, .. } => end, + }; + + let (_, offset) = measure_cursor_and_scroll_offset( + self, + text_bounds, + value, + size, + focus_position, + font, + ); + + offset + } else { + 0.0 + } + } + + fn draw( + &mut self, + bounds: Rectangle, + text_bounds: Rectangle, + cursor_position: Point, + font: Font, + size: u16, + placeholder: &str, + value: &text_input::Value, + state: &text_input::State, + style_sheet: &Self::Style, + ) -> Self::Output { + let is_mouse_over = bounds.contains(cursor_position); + + let style = if state.is_focused() { + style_sheet.focused() + } else if is_mouse_over { + style_sheet.hovered() + } else { + style_sheet.active() + }; + + let input = Primitive::Quad { + bounds, + background: style.background, + border_radius: style.border_radius, + border_width: style.border_width, + border_color: style.border_color, + }; + + let text = value.to_string(); + + let text_value = Primitive::Text { + content: if text.is_empty() { + placeholder.to_string() + } else { + text.clone() + }, + color: if text.is_empty() { + style_sheet.placeholder_color() + } else { + style_sheet.value_color() + }, + font, + bounds: Rectangle { + y: text_bounds.center_y(), + width: f32::INFINITY, + ..text_bounds + }, + size: f32::from(size), + horizontal_alignment: HorizontalAlignment::Left, + vertical_alignment: VerticalAlignment::Center, + }; + + let (contents_primitive, offset) = if state.is_focused() { + let cursor = state.cursor(); + + let (cursor_primitive, offset) = match cursor.state(value) { + cursor::State::Index(position) => { + let (text_value_width, offset) = + measure_cursor_and_scroll_offset( + self, + text_bounds, + value, + size, + position, + font, + ); + + ( + Primitive::Quad { + bounds: Rectangle { + x: text_bounds.x + text_value_width, + y: text_bounds.y, + width: 1.0, + height: text_bounds.height, + }, + background: Background::Color( + style_sheet.value_color(), + ), + border_radius: 0, + border_width: 0, + border_color: Color::TRANSPARENT, + }, + offset, + ) + } + cursor::State::Selection { start, end } => { + let left = start.min(end); + let right = end.max(start); + + let (left_position, left_offset) = + measure_cursor_and_scroll_offset( + self, + text_bounds, + value, + size, + left, + font, + ); + + let (right_position, right_offset) = + measure_cursor_and_scroll_offset( + self, + text_bounds, + value, + size, + right, + font, + ); + + let width = right_position - left_position; + + ( + Primitive::Quad { + bounds: Rectangle { + x: text_bounds.x + left_position, + y: text_bounds.y, + width, + height: text_bounds.height, + }, + background: Background::Color( + style_sheet.selection_color(), + ), + border_radius: 0, + border_width: 0, + border_color: Color::TRANSPARENT, + }, + if end == right { + right_offset + } else { + left_offset + }, + ) + } + }; + + ( + Primitive::Group { + primitives: vec![cursor_primitive, text_value], + }, + Vector::new(offset as u32, 0), + ) + } else { + (text_value, Vector::new(0, 0)) + }; + + let text_width = self.measure_value( + if text.is_empty() { placeholder } else { &text }, + size, + font, + ); + + let contents = if text_width > text_bounds.width { + Primitive::Clip { + bounds: text_bounds, + offset, + content: Box::new(contents_primitive), + } + } else { + contents_primitive + }; + + ( + Primitive::Group { + primitives: vec![input, contents], + }, + if is_mouse_over { + mouse::Interaction::Text + } else { + mouse::Interaction::default() + }, + ) + } +} + +fn measure_cursor_and_scroll_offset( + renderer: &Renderer, + text_bounds: Rectangle, + value: &text_input::Value, + size: u16, + cursor_index: usize, + font: Font, +) -> (f32, f32) { + use iced_native::text_input::Renderer; + + let text_before_cursor = value.until(cursor_index).to_string(); + + let text_value_width = + renderer.measure_value(&text_before_cursor, size, font); + let offset = ((text_value_width + 5.0) - text_bounds.width).max(0.0); + + (text_value_width, offset) +} |