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feat(core/rust): improve the painting of TR's buttons + new inverse design

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[no changelog]
pull/2385/head
grdddj 12 months ago committed by Jiří Musil
parent a6316f964e
commit b420064c08
2 changed files with 80 additions and 109 deletions
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186
core/embed/rust/src/ui/model_tr/component/button.rs
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@ -5,7 +5,7 @@ use crate::{
component::{Component, Event, EventCtx, Never},
constant,
display::{self, Color, Font, Icon},
geometry::{Alignment2D, Insets, Offset, Point, Rect},
geometry::{Alignment2D, Offset, Point, Rect},
},
};
@ -115,49 +115,40 @@ where
let button_width = if let Some(width) = style.fixed_width {
width
} else {
let outline = if style.with_outline {
theme::BUTTON_OUTLINE
} else {
0
};
let content_width = match &self.content {
ButtonContent::Text(text) => style.font.visible_text_width(text.as_ref()),
ButtonContent::Icon(icon) => icon.toif.width(),
};
content_width + 2 * outline
};
// Button height may be adjusted for the icon without outline
// Done to avoid highlighting bigger area than necessary when
// drawing the icon in active (black on white) state
let button_height = match &self.content {
ButtonContent::Text(_) => theme::BUTTON_HEIGHT,
ButtonContent::Icon(icon) => {
if style.with_outline {
theme::BUTTON_HEIGHT
} else {
icon.toif.height()
match &self.content {
ButtonContent::Text(text) => {
let text_width = style.font.visible_text_width(text.as_ref());
if style.with_outline {
text_width + 2 * theme::BUTTON_OUTLINE
} else if style.with_arms {
text_width + 2 * theme::ARMS_MARGIN
} else {
text_width
}
}
ButtonContent::Icon(icon) => {
// When Icon does not have outline, hardcode its width
if style.with_outline {
icon.toif.width() + 2 * theme::BUTTON_OUTLINE
} else {
theme::BUTTON_ICON_WIDTH
}
}
}
};
let button_bounds = self.bounds.split_bottom(button_height).1;
let area = match self.pos {
let button_bounds = self.bounds.split_bottom(theme::BUTTON_HEIGHT).1;
match self.pos {
ButtonPos::Left => button_bounds.split_left(button_width).0,
ButtonPos::Right => button_bounds.split_right(button_width).1,
ButtonPos::Middle => button_bounds.split_center(button_width).1,
};
// Allowing for possible offset of the area from current style
area.translate(style.offset)
}
}
/// Determine baseline point for the text.
fn get_text_baseline(&self, style: &ButtonStyle) -> Point {
// Arms and outline require the text to be elevated.
let offset_y = if style.with_arms {
theme::BUTTON_ARMS
} else if style.with_outline {
let offset_y = if style.with_outline || style.with_arms {
theme::BUTTON_OUTLINE
} else {
0
@ -165,6 +156,8 @@ where
let offset_x = if style.with_outline {
theme::BUTTON_OUTLINE
} else if style.with_arms {
theme::ARMS_MARGIN
} else {
0
};
@ -191,51 +184,41 @@ where
fn paint(&mut self) {
let style = self.style();
let text_color = style.text_color;
let background_color = text_color.negate();
let mut area = self.get_current_area();
let fg_color = style.text_color;
let bg_color = fg_color.negate();
let area = self.get_current_area();
let inversed_colors = bg_color != theme::BG;
// Filling the background (with 2-pixel rounding when applicable)
if inversed_colors {
display::rect_outline_rounded(area, bg_color, fg_color, 2);
display::rect_fill(area.shrink(1), bg_color);
} else if style.with_outline {
display::rect_outline_rounded(area, fg_color, bg_color, 2);
} else {
display::rect_fill(area, bg_color);
}
// Optionally display "arms" at both sides of content, or create
// a nice rounded outline around it.
// By default just fill the content background.
// Optionally display "arms" at both sides of content - always in FG and BG
// colors (they are not inverted).
if style.with_arms {
const ARM_WIDTH: i16 = 15;
area = area.translate(Offset::y(1));
// Prepare space for both the arms and content with BG color.
// Arms are icons 10*6 pixels.
let area_to_fill = area.outset(Insets::sides(ARM_WIDTH));
display::rect_fill(area_to_fill, background_color);
display::rect_fill_corners(area_to_fill, theme::BG);
// Paint both arms.
// Baselines are adjusted to give space between text and icon.
// 2 px because 1px might lead to odd coordinate which can't be render
// Putting them one pixel down to touch the bottom.
let arms_area = area.translate(Offset::y(1));
theme::ICON_ARM_LEFT.draw(
area.left_center() - Offset::x(2),
arms_area.left_center(),
Alignment2D::TOP_RIGHT,
text_color,
background_color,
theme::FG,
theme::BG,
);
theme::ICON_ARM_RIGHT.draw(
area.right_center() + Offset::x(2),
arms_area.right_center(),
Alignment2D::TOP_LEFT,
text_color,
background_color,
theme::FG,
theme::BG,
);
} else if style.with_outline {
if background_color == theme::BG {
display::rect_outline_rounded(area, text_color, background_color, 2);
} else {
// With inverse colors having just radius of one, `rect_outline_rounded`
// is not suitable for inverse colors.
display::rect_fill(area, background_color);
display::rect_fill_corners(area, theme::BG);
}
} else {
display::rect_fill(area, background_color);
}
// Painting the content
match &self.content {
ButtonContent::Text(text) => {
display::text_left(
@ -243,37 +226,33 @@ where
- Offset::x(style.font.start_x_bearing(text.as_ref())),
text.as_ref(),
style.font,
text_color,
background_color,
fg_color,
bg_color,
);
}
ButtonContent::Icon(icon) => {
// Allowing for possible offset of the area from current style
let icon_area = area.translate(style.offset);
if style.with_outline {
// Accounting for the 8*8 icon with empty left column and bottom row
// (which fits the outline nicely and symmetrically)
let center = area.center() + Offset::uniform(1);
icon.draw(center, Alignment2D::CENTER, text_color, background_color);
icon.draw(icon_area.center(), Alignment2D::CENTER, fg_color, bg_color);
} else {
// Positioning the icon in the corresponding corner/center
match self.pos {
ButtonPos::Left => icon.draw(
area.bottom_left(),
icon_area.bottom_left(),
Alignment2D::BOTTOM_LEFT,
text_color,
background_color,
fg_color,
bg_color,
),
ButtonPos::Right => icon.draw(
area.bottom_right(),
icon_area.bottom_right(),
Alignment2D::BOTTOM_RIGHT,
text_color,
background_color,
),
ButtonPos::Middle => icon.draw(
area.center(),
Alignment2D::CENTER,
text_color,
background_color,
fg_color,
bg_color,
),
ButtonPos::Middle => {
icon.draw(icon_area.center(), Alignment2D::CENTER, fg_color, bg_color)
}
}
}
}
@ -383,7 +362,7 @@ impl<T> ButtonDetails<T> {
Self {
content: ButtonContent::Icon(icon),
duration: None,
with_outline: true,
with_outline: false,
with_arms: false,
fixed_width: None,
offset: Offset::zero(),
@ -397,51 +376,42 @@ impl<T> ButtonDetails<T> {
/// Cross-style-icon cancel button with no outline.
pub fn cancel_icon() -> Self {
Self::icon(theme::ICON_CANCEL)
.with_no_outline()
.with_offset(Offset::new(2, -2))
Self::icon(theme::ICON_CANCEL).with_offset(Offset::new(3, -3))
}
/// Left arrow to signal going back. No outline.
pub fn left_arrow_icon() -> Self {
Self::icon(theme::ICON_ARROW_LEFT)
.with_no_outline()
.with_offset(Offset::new(1, -1))
Self::icon(theme::ICON_ARROW_LEFT).with_offset(Offset::new(4, -3))
}
/// Right arrow to signal going forward. No outline.
pub fn right_arrow_icon() -> Self {
Self::icon(theme::ICON_ARROW_RIGHT)
.with_no_outline()
.with_offset(Offset::new(-1, -1))
Self::icon(theme::ICON_ARROW_RIGHT).with_offset(Offset::new(-4, -3))
}
/// Up arrow to signal paginating back. No outline. Offsetted little right
/// to not be on the boundary.
pub fn up_arrow_icon() -> Self {
Self::icon(theme::ICON_ARROW_UP)
.with_no_outline()
.with_offset(Offset::new(2, -3))
Self::icon(theme::ICON_ARROW_UP).with_offset(Offset::new(2, -3))
}
/// Down arrow to signal paginating forward. Takes half the screen's width
pub fn down_arrow_icon_wide() -> Self {
Self::icon(theme::ICON_ARROW_DOWN).with_fixed_width(HALF_SCREEN_BUTTON_WIDTH)
Self::icon(theme::ICON_ARROW_DOWN)
.with_outline(true)
.with_fixed_width(HALF_SCREEN_BUTTON_WIDTH)
}
/// Up arrow to signal paginating back. Takes half the screen's width
pub fn up_arrow_icon_wide() -> Self {
Self::icon(theme::ICON_ARROW_UP).with_fixed_width(HALF_SCREEN_BUTTON_WIDTH)
}
/// Icon of a bin to signal deleting.
pub fn bin_icon() -> Self {
Self::icon(theme::ICON_BIN).with_no_outline()
Self::icon(theme::ICON_ARROW_UP)
.with_outline(true)
.with_fixed_width(HALF_SCREEN_BUTTON_WIDTH)
}
/// No outline around the button.
pub fn with_no_outline(mut self) -> Self {
self.with_outline = false;
/// Possible outline around the button.
pub fn with_outline(mut self, outline: bool) -> Self {
self.with_outline = outline;
self
}

3
core/embed/rust/src/ui/model_tr/theme.rs
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@ -106,9 +106,10 @@ pub const CHECKLIST_CURRENT_OFFSET: Offset = Offset::x(3);
// with empty LEFT column and BOTTOM row.
pub const BUTTON_CONTENT_HEIGHT: i16 = 7;
pub const BUTTON_OUTLINE: i16 = 3;
pub const BUTTON_ARMS: i16 = 2;
pub const BUTTON_HEIGHT: i16 = BUTTON_CONTENT_HEIGHT + 2 * BUTTON_OUTLINE;
pub const BUTTON_ICON_WIDTH: i16 = BUTTON_HEIGHT;
pub const TITLE_AREA_HEIGHT: i16 = 12;
pub const ARMS_MARGIN: i16 = 2;
// How many pixels should be between text and icons.
pub const ELLIPSIS_ICON_MARGIN: i16 = 4;

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