diff options
Diffstat (limited to 'widget/src/overlay/menu.rs')
| -rw-r--r-- | widget/src/overlay/menu.rs | 86 |
1 files changed, 54 insertions, 32 deletions
diff --git a/widget/src/overlay/menu.rs b/widget/src/overlay/menu.rs index ccf4dfb5..5098fa17 100644 --- a/widget/src/overlay/menu.rs +++ b/widget/src/overlay/menu.rs @@ -28,9 +28,10 @@ where options: &'a [T], hovered_option: &'a mut Option<usize>, on_selected: Box<dyn FnMut(T) -> Message + 'a>, + on_option_hovered: Option<&'a dyn Fn(T) -> Message>, width: f32, padding: Padding, - text_size: Option<f32>, + text_size: Option<Pixels>, text_line_height: text::LineHeight, text_shaping: text::Shaping, font: Option<Renderer::Font>, @@ -52,12 +53,14 @@ where options: &'a [T], hovered_option: &'a mut Option<usize>, on_selected: impl FnMut(T) -> Message + 'a, + on_option_hovered: Option<&'a dyn Fn(T) -> Message>, ) -> Self { Menu { state, options, hovered_option, on_selected: Box::new(on_selected), + on_option_hovered, width: 0.0, padding: Padding::ZERO, text_size: None, @@ -82,11 +85,11 @@ where /// Sets the text size of the [`Menu`]. pub fn text_size(mut self, text_size: impl Into<Pixels>) -> Self { - self.text_size = Some(text_size.into().0); + self.text_size = Some(text_size.into()); self } - /// Sets the text [`LineHeight`] of the [`Menu`]. + /// Sets the text [`text::LineHeight`] of the [`Menu`]. pub fn text_line_height( mut self, line_height: impl Into<text::LineHeight>, @@ -187,6 +190,7 @@ where options, hovered_option, on_selected, + on_option_hovered, width, padding, font, @@ -200,6 +204,7 @@ where options, hovered_option, on_selected, + on_option_hovered, font, text_size, text_line_height, @@ -227,10 +232,11 @@ where Renderer::Theme: StyleSheet + container::StyleSheet, { fn layout( - &self, + &mut self, renderer: &Renderer, bounds: Size, position: Point, + _translation: Vector, ) -> layout::Node { let space_below = bounds.height - (position.y + self.target_height); let space_above = position.y; @@ -248,7 +254,7 @@ where ) .width(self.width); - let mut node = self.container.layout(renderer, &limits); + let mut node = self.container.layout(self.state, renderer, &limits); node.move_to(if space_below > space_above { position + Vector::new(0.0, self.target_height) @@ -268,8 +274,11 @@ where clipboard: &mut dyn Clipboard, shell: &mut Shell<'_, Message>, ) -> event::Status { + let bounds = layout.bounds(); + self.container.on_event( self.state, event, layout, cursor, renderer, clipboard, shell, + &bounds, ) } @@ -318,8 +327,9 @@ where options: &'a [T], hovered_option: &'a mut Option<usize>, on_selected: Box<dyn FnMut(T) -> Message + 'a>, + on_option_hovered: Option<&'a dyn Fn(T) -> Message>, padding: Padding, - text_size: Option<f32>, + text_size: Option<Pixels>, text_line_height: text::LineHeight, text_shaping: text::Shaping, font: Option<Renderer::Font>, @@ -343,6 +353,7 @@ where fn layout( &self, + _tree: &mut Tree, renderer: &Renderer, limits: &layout::Limits, ) -> layout::Node { @@ -352,8 +363,7 @@ where let text_size = self.text_size.unwrap_or_else(|| renderer.default_size()); - let text_line_height = - self.text_line_height.to_absolute(Pixels(text_size)); + let text_line_height = self.text_line_height.to_absolute(text_size); let size = { let intrinsic = Size::new( @@ -377,6 +387,7 @@ where renderer: &Renderer, _clipboard: &mut dyn Clipboard, shell: &mut Shell<'_, Message>, + _viewport: &Rectangle, ) -> event::Status { match event { Event::Mouse(mouse::Event::ButtonPressed(mouse::Button::Left)) => { @@ -397,12 +408,25 @@ where .text_size .unwrap_or_else(|| renderer.default_size()); - let option_height = f32::from( - self.text_line_height.to_absolute(Pixels(text_size)), - ) + self.padding.vertical(); + let option_height = + f32::from(self.text_line_height.to_absolute(text_size)) + + self.padding.vertical(); + + let new_hovered_option = + (cursor_position.y / option_height) as usize; + + if let Some(on_option_hovered) = self.on_option_hovered { + if *self.hovered_option != Some(new_hovered_option) { + if let Some(option) = + self.options.get(new_hovered_option) + { + shell + .publish(on_option_hovered(option.clone())); + } + } + } - *self.hovered_option = - Some((cursor_position.y / option_height) as usize); + *self.hovered_option = Some(new_hovered_option); } } Event::Touch(touch::Event::FingerPressed { .. }) => { @@ -413,9 +437,9 @@ where .text_size .unwrap_or_else(|| renderer.default_size()); - let option_height = f32::from( - self.text_line_height.to_absolute(Pixels(text_size)), - ) + self.padding.vertical(); + let option_height = + f32::from(self.text_line_height.to_absolute(text_size)) + + self.padding.vertical(); *self.hovered_option = Some((cursor_position.y / option_height) as usize); @@ -467,7 +491,7 @@ where let text_size = self.text_size.unwrap_or_else(|| renderer.default_size()); let option_height = - f32::from(self.text_line_height.to_absolute(Pixels(text_size))) + f32::from(self.text_line_height.to_absolute(text_size)) + self.padding.vertical(); let offset = viewport.y - bounds.y; @@ -503,26 +527,24 @@ where ); } - renderer.fill_text(Text { - content: &option.to_string(), - bounds: Rectangle { - x: bounds.x + self.padding.left, - y: bounds.center_y(), - width: f32::INFINITY, - ..bounds + renderer.fill_text( + Text { + content: &option.to_string(), + bounds: Size::new(f32::INFINITY, bounds.height), + size: text_size, + line_height: self.text_line_height, + font: self.font.unwrap_or_else(|| renderer.default_font()), + horizontal_alignment: alignment::Horizontal::Left, + vertical_alignment: alignment::Vertical::Center, + shaping: self.text_shaping, }, - size: text_size, - line_height: self.text_line_height, - font: self.font.unwrap_or_else(|| renderer.default_font()), - color: if is_selected { + Point::new(bounds.x + self.padding.left, bounds.center_y()), + if is_selected { appearance.selected_text_color } else { appearance.text_color }, - horizontal_alignment: alignment::Horizontal::Left, - vertical_alignment: alignment::Vertical::Center, - shaping: self.text_shaping, - }); + ); } } } |