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Phase 7: Plot settings and PDF export

Browse source 
- Add printpdf 0.9.1 dependency for native PDF generation.
- New src/io/pdf_export.rs: converts paper-space WireModels to a PDF
  page (per-wire stroke color, line weight in Pt, NaN-split segments).
  White/near-white colors are inverted to black for print output.
- Add PlotExport / PlotExportPath messages: opens a save-file dialog
  and writes a .pdf next to the drawing file.
- Add PageSetupOpen/Close/WidthEdit/HeightEdit/Commit messages: a
  centered modal panel lets the user enter paper width and height (mm);
  on commit the Layout object's min/max_limits are updated in-place.
- Register PRINT / PLOT / EXPORT and PAGESETUP (PS) commands in
  dispatch_command; fix MVIEW error message to English.
- Layout ribbon gains a "Plot" group with Page Setup and Export PDF
  ribbon buttons.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
Hakan Seven 2026-03-31 08:05:17 +03:00
commit e1d296da10
9 changed files with 1639 additions and 140 deletions
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120
src/app/view.rs
View file

@ -5,7 +5,7 @@ use super::helpers::grid_plane_from_camera;
use crate::scene::{VIEWCUBE_DRAW_PX, VIEWCUBE_PAD};
use crate::scene::grip::grips_to_screen;
use crate::ui::overlay;
use iced::widget::{button, column, container, mouse_area, row, shader, stack, text, Row};
use iced::widget::{button, column, container, mouse_area, row, shader, stack, text, text_input, Row};
use iced::window;
use iced::{keyboard, Background, Border, Color, Element, Fill, Subscription, Task, Theme};
@ -199,7 +199,13 @@ impl H7CAD {
iced::widget::Space::new().width(0).height(0).into()
};
stack![main_ui, self.app_menu.view(), snap_layer, dropdown_layer, layout_ctx_layer].into()
let page_setup_layer: Element<'_, Message> = if self.page_setup_open {
page_setup_overlay(&self.page_setup_w, &self.page_setup_h)
} else {
iced::widget::Space::new().width(0).height(0).into()
};
stack![main_ui, self.app_menu.view(), snap_layer, dropdown_layer, layout_ctx_layer, page_setup_layer].into()
}
pub fn subscription(&self) -> Subscription<Message> {
@ -443,3 +449,113 @@ fn layout_context_menu_overlay(name: &str) -> Element<'_, Message> {
stack![catcher, positioned].into()
}
// ── Page Setup overlay ──────────────────────────────────────────────────────
/// Modal panel for editing paper width / height of the current layout.
fn page_setup_overlay<'a>(w_buf: &'a str, h_buf: &'a str) -> Element<'a, Message> {
const PANEL_BG: Color = Color { r: 0.15, g: 0.15, b: 0.15, a: 1.0 };
const BORDER_COL: Color = Color { r: 0.35, g: 0.35, b: 0.35, a: 1.0 };
const TEXT_COLOR: Color = Color { r: 0.88, g: 0.88, b: 0.88, a: 1.0 };
const ACCENT: Color = Color { r: 0.25, g: 0.50, b: 0.85, a: 1.0 };
let label = |s: &'static str| text(s).size(12).color(TEXT_COLOR);
let field_style = |_: &Theme, _: text_input::Status| text_input::Style {
background: Background::Color(Color { r: 0.10, g: 0.10, b: 0.10, a: 1.0 }),
border: Border { color: BORDER_COL, width: 1.0, radius: 3.0.into() },
icon: TEXT_COLOR,
placeholder: Color { r: 0.45, g: 0.45, b: 0.45, a: 1.0 },
value: TEXT_COLOR,
selection: ACCENT,
};
let btn_style = |accent: bool| {
move |_: &Theme, status: button::Status| button::Style {
background: Some(Background::Color(match status {
button::Status::Hovered | button::Status::Pressed if accent => {
Color { r: 0.20, g: 0.42, b: 0.72, a: 1.0 }
}
button::Status::Hovered | button::Status::Pressed => {
Color { r: 0.28, g: 0.28, b: 0.28, a: 1.0 }
}
_ if accent => ACCENT,
_ => Color { r: 0.22, g: 0.22, b: 0.22, a: 1.0 },
})),
text_color: TEXT_COLOR,
border: Border { color: BORDER_COL, width: 1.0, radius: 4.0.into() },
shadow: iced::Shadow::default(),
snap: false,
}
};
let panel = container(
column![
text("Page Setup").size(14).color(TEXT_COLOR),
container(iced::widget::Space::new().width(Fill).height(1))
.style(|_: &Theme| container::Style {
background: Some(Background::Color(BORDER_COL)),
..Default::default()
})
.width(Fill),
row![
label("Width (mm)"),
text_input("297", w_buf)
.on_input(Message::PageSetupWidthEdit)
.on_submit(Message::PageSetupCommit)
.style(field_style)
.width(90)
.size(12),
]
.spacing(8)
.align_y(iced::Alignment::Center),
row![
label("Height (mm)"),
text_input("210", h_buf)
.on_input(Message::PageSetupHeightEdit)
.on_submit(Message::PageSetupCommit)
.style(field_style)
.width(90)
.size(12),
]
.spacing(8)
.align_y(iced::Alignment::Center),
row![
button(text("Cancel").size(12).color(TEXT_COLOR))
.on_press(Message::PageSetupClose)
.style(btn_style(false))
.padding([5, 14]),
button(text("OK").size(12).color(TEXT_COLOR))
.on_press(Message::PageSetupCommit)
.style(btn_style(true))
.padding([5, 20]),
]
.spacing(8),
]
.spacing(10)
.padding(16)
.width(240),
)
.style(move |_: &Theme| container::Style {
background: Some(Background::Color(PANEL_BG)),
border: Border { color: BORDER_COL, width: 1.0, radius: 6.0.into() },
..Default::default()
});
// Click-catcher to close on outside click.
let catcher = mouse_area(
container(iced::widget::Space::new().width(Fill).height(Fill))
.width(Fill)
.height(Fill),
)
.on_press(Message::PageSetupClose);
// Center the panel on screen.
let positioned = container(panel)
.width(Fill)
.height(Fill)
.align_x(iced::Alignment::Center)
.align_y(iced::Alignment::Center);
stack![catcher, positioned].into()
}