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| 1 | +//! # Example: Multiple displays |
| 2 | +//! |
| 3 | +//! This example demonstrates how multiple displays can be displayed in a common window. |
| 4 | +
|
| 5 | +extern crate embedded_graphics; |
| 6 | +extern crate embedded_graphics_simulator; |
| 7 | + |
| 8 | +use embedded_graphics::{ |
| 9 | + geometry::AnchorPoint, |
| 10 | + mono_font::{ascii::FONT_10X20, MonoTextStyle}, |
| 11 | + pixelcolor::{BinaryColor, Rgb565, Rgb888}, |
| 12 | + prelude::*, |
| 13 | + primitives::{Circle, PrimitiveStyle, PrimitiveStyleBuilder, Rectangle, StrokeAlignment}, |
| 14 | + text::{Alignment, Baseline, Text, TextStyle, TextStyleBuilder}, |
| 15 | +}; |
| 16 | +use embedded_graphics_simulator::{ |
| 17 | + sdl2::MouseButton, BinaryColorTheme, MultiWindow, OutputSettings, OutputSettingsBuilder, |
| 18 | + SimulatorDisplay, SimulatorEvent, |
| 19 | +}; |
| 20 | + |
| 21 | +const OLED_TEXT: MonoTextStyle<BinaryColor> = MonoTextStyle::new(&FONT_10X20, BinaryColor::On); |
| 22 | +const TFT_TEXT: MonoTextStyle<Rgb565> = |
| 23 | + MonoTextStyle::new(&FONT_10X20, Rgb565::CSS_LIGHT_SLATE_GRAY); |
| 24 | +const CENTERED: TextStyle = TextStyleBuilder::new() |
| 25 | + .alignment(Alignment::Center) |
| 26 | + .baseline(Baseline::Middle) |
| 27 | + .build(); |
| 28 | + |
| 29 | +/// Determines the position of a display. |
| 30 | +fn display_offset(window_size: Size, display_size: Size, anchor_point: AnchorPoint) -> Point { |
| 31 | + // Position displays in a rectangle that is 20px than the the window. |
| 32 | + let layout_rect = Rectangle::new(Point::zero(), window_size).offset(-20); |
| 33 | + |
| 34 | + // Resize the rectangle to the display size to determine the offset from the |
| 35 | + // top left corner of the window to the top left corner of the display. |
| 36 | + layout_rect.resized(display_size, anchor_point).top_left |
| 37 | +} |
| 38 | + |
| 39 | +fn main() -> Result<(), core::convert::Infallible> { |
| 40 | + // Create three simulated monochrome 128x64 OLED displays. |
| 41 | + |
| 42 | + let mut oled_displays = Vec::new(); |
| 43 | + for i in 0..3 { |
| 44 | + let mut oled: SimulatorDisplay<BinaryColor> = SimulatorDisplay::new(Size::new(128, 64)); |
| 45 | + |
| 46 | + Text::with_text_style( |
| 47 | + &format!("Display {i}"), |
| 48 | + oled.bounding_box().center(), |
| 49 | + OLED_TEXT, |
| 50 | + CENTERED, |
| 51 | + ) |
| 52 | + .draw(&mut oled) |
| 53 | + .unwrap(); |
| 54 | + |
| 55 | + oled_displays.push(oled); |
| 56 | + } |
| 57 | + |
| 58 | + // Create a simulated color 320x240 TFT display. |
| 59 | + |
| 60 | + let mut tft: SimulatorDisplay<Rgb565> = SimulatorDisplay::new(Size::new(320, 240)); |
| 61 | + tft.clear(Rgb565::new(5, 10, 5)).unwrap(); |
| 62 | + |
| 63 | + Text::with_text_style( |
| 64 | + &format!("Draw here"), |
| 65 | + tft.bounding_box().center(), |
| 66 | + TFT_TEXT, |
| 67 | + CENTERED, |
| 68 | + ) |
| 69 | + .draw(&mut tft) |
| 70 | + .unwrap(); |
| 71 | + |
| 72 | + // The simulated displays can now be added to common simulator window. |
| 73 | + |
| 74 | + let window_size = Size::new(1300, 500); |
| 75 | + let mut window = MultiWindow::new("Multiple displays example", window_size); |
| 76 | + window.clear(Rgb888::CSS_DIM_GRAY); |
| 77 | + |
| 78 | + let oled_settings = OutputSettingsBuilder::new() |
| 79 | + .theme(BinaryColorTheme::OledBlue) |
| 80 | + .scale(2) |
| 81 | + .build(); |
| 82 | + let oled_size = oled_displays[0].output_size(&oled_settings); |
| 83 | + |
| 84 | + for (oled, anchor) in oled_displays.iter().zip( |
| 85 | + [ |
| 86 | + AnchorPoint::TopLeft, |
| 87 | + AnchorPoint::TopCenter, |
| 88 | + AnchorPoint::TopRight, |
| 89 | + ] |
| 90 | + .into_iter(), |
| 91 | + ) { |
| 92 | + let offset = display_offset(window_size, oled_size, anchor); |
| 93 | + window.add_display(&oled, offset, &oled_settings); |
| 94 | + } |
| 95 | + |
| 96 | + let tft_settings = OutputSettings::default(); |
| 97 | + let tft_size = tft.output_size(&tft_settings); |
| 98 | + let tft_offset = display_offset(window_size, tft_size, AnchorPoint::BottomCenter); |
| 99 | + |
| 100 | + window.add_display(&tft, tft_offset, &tft_settings); |
| 101 | + |
| 102 | + let border_style = PrimitiveStyleBuilder::new() |
| 103 | + .stroke_width(5) |
| 104 | + .stroke_alignment(StrokeAlignment::Inside) |
| 105 | + .build(); |
| 106 | + |
| 107 | + let mut mouse_down = false; |
| 108 | + |
| 109 | + 'running: loop { |
| 110 | + // Call `update_display` for all display. Note that the window won't be |
| 111 | + // updated until `window.flush` is called. |
| 112 | + for oled in &oled_displays { |
| 113 | + window.update_display(oled); |
| 114 | + } |
| 115 | + window.update_display(&tft); |
| 116 | + window.flush(); |
| 117 | + |
| 118 | + for event in window.events() { |
| 119 | + match event { |
| 120 | + SimulatorEvent::MouseMove { point } => { |
| 121 | + // Mouse events use the window coordinate system. |
| 122 | + // `translate_mouse_position` can be used to translate the |
| 123 | + // mouse position into the display coordinate system. |
| 124 | + |
| 125 | + for oled in &mut oled_displays { |
| 126 | + let is_inside = window.translate_mouse_position(oled, point).is_some(); |
| 127 | + |
| 128 | + let style = PrimitiveStyleBuilder::from(&border_style) |
| 129 | + .stroke_color(BinaryColor::from(is_inside)) |
| 130 | + .build(); |
| 131 | + |
| 132 | + oled.bounding_box().into_styled(style).draw(oled).unwrap(); |
| 133 | + } |
| 134 | + |
| 135 | + if mouse_down { |
| 136 | + if let Some(point) = window.translate_mouse_position(&tft, point) { |
| 137 | + Circle::with_center(point, 10) |
| 138 | + .into_styled(PrimitiveStyle::with_fill(Rgb565::CSS_DODGER_BLUE)) |
| 139 | + .draw(&mut tft) |
| 140 | + .unwrap(); |
| 141 | + } |
| 142 | + } |
| 143 | + } |
| 144 | + SimulatorEvent::MouseButtonDown { |
| 145 | + mouse_btn: MouseButton::Left, |
| 146 | + .. |
| 147 | + } => { |
| 148 | + mouse_down = true; |
| 149 | + } |
| 150 | + SimulatorEvent::MouseButtonUp { |
| 151 | + mouse_btn: MouseButton::Left, |
| 152 | + .. |
| 153 | + } => { |
| 154 | + mouse_down = false; |
| 155 | + } |
| 156 | + SimulatorEvent::Quit => break 'running, |
| 157 | + _ => {} |
| 158 | + } |
| 159 | + } |
| 160 | + } |
| 161 | + |
| 162 | + Ok(()) |
| 163 | +} |
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