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https://github.com/ClementTsang/bottom
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opt: Only recalculate rect layout if resize or startup
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ClementTsang
parent
9127cb1468
commit
07efc3f301
1 changed files with 122 additions and 98 deletions
118
src/canvas.rs
118
src/canvas.rs
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@ -4,9 +4,9 @@ use std::collections::HashMap;
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use tui::{
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backend::Backend,
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layout::{Constraint, Direction, Layout},
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layout::{Constraint, Direction, Layout, Rect},
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widgets::Text,
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Terminal,
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Frame, Terminal,
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};
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use canvas_colours::*;
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@ -17,7 +17,8 @@ use crate::{
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app::{
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self,
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data_harvester::processes::ProcessHarvest,
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layout_manager::{BottomLayout, BottomWidgetType},
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layout_manager::{BottomColRow, BottomLayout, BottomWidgetType},
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App,
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},
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constants::*,
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data_conversion::{ConvertedCpuData, ConvertedProcessData},
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@ -66,6 +67,7 @@ pub struct Painter {
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col_row_constraints: Vec<Vec<Vec<Constraint>>>,
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layout_constraints: Vec<Vec<Vec<Vec<Constraint>>>>,
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widget_layout: BottomLayout,
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derived_widget_draw_locs: Vec<Vec<Vec<Vec<Rect>>>>,
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}
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impl Painter {
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@ -150,6 +152,7 @@ impl Painter {
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col_row_constraints,
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layout_constraints,
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widget_layout,
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derived_widget_draw_locs: Vec::new(),
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}
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}
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@ -435,6 +438,8 @@ impl Painter {
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}
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} else {
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// Draws using the passed in (or default) layout. NOT basic so far.
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if self.derived_widget_draw_locs.is_empty() || app_state.is_resized {
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debug!("Calculating draw locs");
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let row_draw_locs = Layout::default()
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.margin(0)
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.constraints(self.row_constraints.as_ref())
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@ -470,15 +475,19 @@ impl Painter {
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.collect::<Vec<_>>();
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// Now... draw!
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let mut new_derived_widget_draw_locs = Vec::new();
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izip!(
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&self.layout_constraints,
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col_row_draw_locs,
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&self.widget_layout.rows
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)
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.for_each(|(row_constraint_vec, row_draw_loc, cols)| {
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let mut derived_row_draw_locs = Vec::new();
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izip!(row_constraint_vec, row_draw_loc, &cols.children).for_each(
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|(col_constraint_vec, col_draw_loc, col_rows)| {
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izip!(col_constraint_vec, col_draw_loc, &col_rows.children).for_each(
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let mut derived_col_draw_locs = Vec::new();
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izip!(col_constraint_vec, col_draw_loc, &col_rows.children)
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.for_each(
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|(col_row_constraint_vec, col_row_draw_loc, widgets)| {
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// Note that col_row_constraint_vec CONTAINS the widget constraints
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let widget_draw_locs = Layout::default()
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@ -486,63 +495,78 @@ impl Painter {
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.direction(Direction::Horizontal)
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.split(col_row_draw_loc);
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for (widget, widget_draw_loc) in
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widgets.children.iter().zip(widget_draw_locs)
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{
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match widget.widget_type {
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Empty => {}
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Cpu => self.draw_cpu(
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self.draw_widgets_with_constraints(
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&mut f,
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app_state,
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widget_draw_loc,
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widget.widget_id,
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),
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Mem => self.draw_memory_graph(
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widgets,
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&widget_draw_locs,
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);
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derived_col_draw_locs.push(widget_draw_locs);
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},
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);
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derived_row_draw_locs.push(derived_col_draw_locs);
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},
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);
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new_derived_widget_draw_locs.push(derived_row_draw_locs);
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});
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self.derived_widget_draw_locs = new_derived_widget_draw_locs;
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} else {
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self.widget_layout
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.rows
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.iter()
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.zip(&self.derived_widget_draw_locs)
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.for_each(|(cols, row_layout)| {
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cols.children.iter().zip(row_layout).for_each(
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|(col_rows, col_row_layout)| {
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col_rows.children.iter().zip(col_row_layout).for_each(
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|(widgets, widget_draw_locs)| {
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self.draw_widgets_with_constraints(
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&mut f,
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app_state,
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widget_draw_loc,
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widget.widget_id,
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),
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Net => self.draw_network(
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&mut f,
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app_state,
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widget_draw_loc,
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widget.widget_id,
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),
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Temp => self.draw_temp_table(
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&mut f,
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app_state,
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widget_draw_loc,
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true,
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widget.widget_id,
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),
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Disk => self.draw_disk_table(
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&mut f,
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app_state,
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widget_draw_loc,
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true,
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widget.widget_id,
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),
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Proc => self.draw_process_and_search(
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&mut f,
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app_state,
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widget_draw_loc,
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true,
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widget.widget_id,
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),
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_ => {}
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}
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}
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widgets,
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&widget_draw_locs,
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);
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},
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);
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},
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);
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});
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}
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}
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})?;
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app_state.is_resized = false;
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Ok(())
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}
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fn draw_widgets_with_constraints<B: Backend>(
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&self, f: &mut Frame<'_, B>, app_state: &mut App, widgets: &BottomColRow,
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widget_draw_locs: &[Rect],
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) {
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use BottomWidgetType::*;
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for (widget, widget_draw_loc) in widgets.children.iter().zip(widget_draw_locs) {
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match &widget.widget_type {
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Empty => {}
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Cpu => self.draw_cpu(f, app_state, *widget_draw_loc, widget.widget_id),
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Mem => self.draw_memory_graph(f, app_state, *widget_draw_loc, widget.widget_id),
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Net => self.draw_network(f, app_state, *widget_draw_loc, widget.widget_id),
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Temp => {
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self.draw_temp_table(f, app_state, *widget_draw_loc, true, widget.widget_id)
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}
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Disk => {
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self.draw_disk_table(f, app_state, *widget_draw_loc, true, widget.widget_id)
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}
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Proc => self.draw_process_and_search(
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f,
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app_state,
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*widget_draw_loc,
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true,
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widget.widget_id,
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),
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_ => {}
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}
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}
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}
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}
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