components: create layouts module in utilities

memfd
Manos Pitsidianakis 2020-06-21 12:51:49 +03:00
parent f8cef3290e
commit 9fb86ab2f2
Signed by: Manos Pitsidianakis
GPG Key ID: 73627C2F690DF710
2 changed files with 261 additions and 236 deletions

View File

@ -25,245 +25,13 @@ use super::*;
use text_processing::Reflow;
mod widgets;
pub use self::widgets::*;
mod layouts;
pub use self::layouts::*;
use std::collections::HashSet;
/// A horizontally split in half container.
#[derive(Debug)]
pub struct HSplit {
top: Box<dyn Component>,
bottom: Box<dyn Component>,
show_divider: bool,
ratio: usize, // bottom/whole height * 100
id: ComponentId,
}
impl fmt::Display for HSplit {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
// TODO display subject/info
Display::fmt(&self.top, f)
}
}
impl HSplit {
pub fn new(
top: Box<dyn Component>,
bottom: Box<dyn Component>,
ratio: usize,
show_divider: bool,
) -> Self {
HSplit {
top,
bottom,
show_divider,
ratio,
id: ComponentId::new_v4(),
}
}
}
impl Component for HSplit {
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
if !is_valid_area!(area) {
return;
}
let upper_left = upper_left!(area);
let bottom_right = bottom_right!(area);
let total_rows = get_y(bottom_right) - get_y(upper_left);
let bottom_component_height = (self.ratio * total_rows) / 100;
let mid = get_y(upper_left) + total_rows - bottom_component_height;
if self.show_divider {
for i in get_x(upper_left)..=get_x(bottom_right) {
grid[(i, mid)].set_ch('─');
}
context
.dirty_areas
.push_back(((get_x(upper_left), mid), (get_x(bottom_right), mid)));
}
self.top.draw(
grid,
(
upper_left,
(get_x(bottom_right), get_y(upper_left) + mid - 1),
),
context,
);
self.bottom.draw(
grid,
((get_x(upper_left), get_y(upper_left) + mid), bottom_right),
context,
);
}
fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
self.top.process_event(event, context) || self.bottom.process_event(event, context)
}
fn is_dirty(&self) -> bool {
self.top.is_dirty() || self.bottom.is_dirty()
}
fn set_dirty(&mut self, value: bool) {
self.top.set_dirty(value);
self.bottom.set_dirty(value);
}
fn get_shortcuts(&self, context: &Context) -> ShortcutMaps {
let mut top_map = self.top.get_shortcuts(context);
top_map.extend(self.bottom.get_shortcuts(context).into_iter());
top_map
}
fn id(&self) -> ComponentId {
self.id
}
fn set_id(&mut self, id: ComponentId) {
self.id = id;
}
}
/// A vertically split in half container.
#[derive(Debug)]
pub struct VSplit {
left: Box<dyn Component>,
right: Box<dyn Component>,
show_divider: bool,
prev_visibility: (bool, bool),
/// This is the width of the right container to the entire width.
ratio: usize, // right/(container width) * 100
id: ComponentId,
}
impl fmt::Display for VSplit {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
// TODO display focused component
Display::fmt(&self.right, f)
}
}
impl VSplit {
pub fn new(
left: Box<dyn Component>,
right: Box<dyn Component>,
ratio: usize,
show_divider: bool,
) -> Self {
VSplit {
left,
right,
show_divider,
prev_visibility: (true, true),
ratio,
id: ComponentId::new_v4(),
}
}
}
impl Component for VSplit {
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
if !is_valid_area!(area) {
return;
}
let upper_left = upper_left!(area);
let bottom_right = bottom_right!(area);
let total_cols = get_x(bottom_right) - get_x(upper_left);
let visibility = (self.left.is_visible(), self.right.is_visible());
if visibility != self.prev_visibility {
self.set_dirty(true);
self.prev_visibility = visibility;
}
let right_component_width = match visibility {
(true, true) => (self.ratio * total_cols) / 100,
(false, true) => total_cols,
(true, false) => 0,
(false, false) => {
clear_area(grid, area, crate::conf::value(context, "theme_default"));
return;
}
};
let mid = get_x(bottom_right) - right_component_width;
if get_y(upper_left) > 1 {
let c = grid
.get(mid, get_y(upper_left) - 1)
.map(Cell::ch)
.unwrap_or_else(|| ' ');
if let HORZ_BOUNDARY = c {
grid[(mid, get_y(upper_left) - 1)].set_ch(LIGHT_DOWN_AND_HORIZONTAL);
}
}
if self.show_divider && mid != get_x(upper_left) {
for i in get_y(upper_left)..=get_y(bottom_right) {
grid[(mid, i)].set_ch(VERT_BOUNDARY);
grid[(mid, i)].set_fg(Color::Default);
grid[(mid, i)].set_bg(Color::Default);
}
if get_y(bottom_right) > 1 {
let c = grid
.get(mid, get_y(bottom_right) - 1)
.map(Cell::ch)
.unwrap_or_else(|| ' ');
if let HORZ_BOUNDARY = c {
grid[(mid, get_y(bottom_right) + 1)].set_ch(LIGHT_UP_AND_HORIZONTAL);
}
}
context
.dirty_areas
.push_back(((mid, get_y(upper_left)), (mid, get_y(bottom_right))));
}
if right_component_width == total_cols {
self.right.draw(grid, area, context);
} else if right_component_width == 0 {
self.left.draw(grid, area, context);
} else {
self.left.draw(
grid,
(
upper_left,
(
if self.show_divider { mid - 1 } else { mid },
get_y(bottom_right),
),
),
context,
);
self.right
.draw(grid, (set_x(upper_left, mid + 1), bottom_right), context);
}
}
fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
self.left.process_event(event, context) || self.right.process_event(event, context)
}
fn is_dirty(&self) -> bool {
self.left.is_dirty() || self.right.is_dirty()
}
fn set_dirty(&mut self, value: bool) {
self.left.set_dirty(value);
self.right.set_dirty(value);
}
fn get_shortcuts(&self, context: &Context) -> ShortcutMaps {
let mut right_map = self.right.get_shortcuts(context);
right_map.extend(self.left.get_shortcuts(context).into_iter());
right_map
}
fn id(&self) -> ComponentId {
self.id
}
fn set_id(&mut self, id: ComponentId) {
self.id = id;
}
}
#[derive(Debug, Clone, Copy)]
pub enum PageMovement {
Up(usize),

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@ -0,0 +1,257 @@
/*
* meli - layouts
*
* Copyright 2017-2018, 2020 Manos Pitsidianakis
*
* This file is part of meli.
*
* meli is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* meli is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with meli. If not, see <http://www.gnu.org/licenses/>.
*/
use super::*;
/// A horizontally split in half container.
#[derive(Debug)]
pub struct HSplit {
top: Box<dyn Component>,
bottom: Box<dyn Component>,
show_divider: bool,
ratio: usize, // bottom/whole height * 100
id: ComponentId,
}
impl fmt::Display for HSplit {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
// TODO display subject/info
Display::fmt(&self.top, f)
}
}
impl HSplit {
pub fn new(
top: Box<dyn Component>,
bottom: Box<dyn Component>,
ratio: usize,
show_divider: bool,
) -> Self {
HSplit {
top,
bottom,
show_divider,
ratio,
id: ComponentId::new_v4(),
}
}
}
impl Component for HSplit {
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
if !is_valid_area!(area) {
return;
}
let upper_left = upper_left!(area);
let bottom_right = bottom_right!(area);
let total_rows = get_y(bottom_right) - get_y(upper_left);
let bottom_component_height = (self.ratio * total_rows) / 100;
let mid = get_y(upper_left) + total_rows - bottom_component_height;
if self.show_divider {
for i in get_x(upper_left)..=get_x(bottom_right) {
grid[(i, mid)].set_ch('─');
}
context
.dirty_areas
.push_back(((get_x(upper_left), mid), (get_x(bottom_right), mid)));
}
self.top.draw(
grid,
(
upper_left,
(get_x(bottom_right), get_y(upper_left) + mid - 1),
),
context,
);
self.bottom.draw(
grid,
((get_x(upper_left), get_y(upper_left) + mid), bottom_right),
context,
);
}
fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
self.top.process_event(event, context) || self.bottom.process_event(event, context)
}
fn is_dirty(&self) -> bool {
self.top.is_dirty() || self.bottom.is_dirty()
}
fn set_dirty(&mut self, value: bool) {
self.top.set_dirty(value);
self.bottom.set_dirty(value);
}
fn get_shortcuts(&self, context: &Context) -> ShortcutMaps {
let mut top_map = self.top.get_shortcuts(context);
top_map.extend(self.bottom.get_shortcuts(context).into_iter());
top_map
}
fn id(&self) -> ComponentId {
self.id
}
fn set_id(&mut self, id: ComponentId) {
self.id = id;
}
}
/// A vertically split in half container.
#[derive(Debug)]
pub struct VSplit {
left: Box<dyn Component>,
right: Box<dyn Component>,
show_divider: bool,
prev_visibility: (bool, bool),
/// This is the width of the right container to the entire width.
ratio: usize, // right/(container width) * 100
id: ComponentId,
}
impl fmt::Display for VSplit {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
// TODO display focused component
Display::fmt(&self.right, f)
}
}
impl VSplit {
pub fn new(
left: Box<dyn Component>,
right: Box<dyn Component>,
ratio: usize,
show_divider: bool,
) -> Self {
VSplit {
left,
right,
show_divider,
prev_visibility: (true, true),
ratio,
id: ComponentId::new_v4(),
}
}
}
impl Component for VSplit {
fn draw(&mut self, grid: &mut CellBuffer, area: Area, context: &mut Context) {
if !is_valid_area!(area) {
return;
}
let upper_left = upper_left!(area);
let bottom_right = bottom_right!(area);
let total_cols = get_x(bottom_right) - get_x(upper_left);
let visibility = (self.left.is_visible(), self.right.is_visible());
if visibility != self.prev_visibility {
self.set_dirty(true);
self.prev_visibility = visibility;
}
let right_component_width = match visibility {
(true, true) => (self.ratio * total_cols) / 100,
(false, true) => total_cols,
(true, false) => 0,
(false, false) => {
clear_area(grid, area, crate::conf::value(context, "theme_default"));
return;
}
};
let mid = get_x(bottom_right) - right_component_width;
if get_y(upper_left) > 1 {
let c = grid
.get(mid, get_y(upper_left) - 1)
.map(Cell::ch)
.unwrap_or_else(|| ' ');
if let HORZ_BOUNDARY = c {
grid[(mid, get_y(upper_left) - 1)].set_ch(LIGHT_DOWN_AND_HORIZONTAL);
}
}
if self.show_divider && mid != get_x(upper_left) {
for i in get_y(upper_left)..=get_y(bottom_right) {
grid[(mid, i)].set_ch(VERT_BOUNDARY);
grid[(mid, i)].set_fg(Color::Default);
grid[(mid, i)].set_bg(Color::Default);
}
if get_y(bottom_right) > 1 {
let c = grid
.get(mid, get_y(bottom_right) - 1)
.map(Cell::ch)
.unwrap_or_else(|| ' ');
if let HORZ_BOUNDARY = c {
grid[(mid, get_y(bottom_right) + 1)].set_ch(LIGHT_UP_AND_HORIZONTAL);
}
}
context
.dirty_areas
.push_back(((mid, get_y(upper_left)), (mid, get_y(bottom_right))));
}
if right_component_width == total_cols {
self.right.draw(grid, area, context);
} else if right_component_width == 0 {
self.left.draw(grid, area, context);
} else {
self.left.draw(
grid,
(
upper_left,
(
if self.show_divider { mid - 1 } else { mid },
get_y(bottom_right),
),
),
context,
);
self.right
.draw(grid, (set_x(upper_left, mid + 1), bottom_right), context);
}
}
fn process_event(&mut self, event: &mut UIEvent, context: &mut Context) -> bool {
self.left.process_event(event, context) || self.right.process_event(event, context)
}
fn is_dirty(&self) -> bool {
self.left.is_dirty() || self.right.is_dirty()
}
fn set_dirty(&mut self, value: bool) {
self.left.set_dirty(value);
self.right.set_dirty(value);
}
fn get_shortcuts(&self, context: &Context) -> ShortcutMaps {
let mut right_map = self.right.get_shortcuts(context);
right_map.extend(self.left.get_shortcuts(context).into_iter());
right_map
}
fn id(&self) -> ComponentId {
self.id
}
fn set_id(&mut self, id: ComponentId) {
self.id = id;
}
}