hasufell/neovim-gtk
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Base code for underline/undercurl implementation

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not usable for now, one reason is not finished gtk-rs bindings
This commit is contained in:
daa84 2017-03-09 13:19:44 +03:00
parent 2fe5b0a249
commit 0b7810ce5b
3 changed files with 67 additions and 12 deletions
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3
src/nvim.rs
View File

@ -30,6 +30,8 @@ pub trait RedrawEvents {
fn on_update_fg(&mut self, fg: i64);
fn on_update_sp(&mut self, sp: i64);
fn on_mode_change(&mut self, mode: &str);
fn on_mouse_on(&mut self);
@ -169,6 +171,7 @@ fn call(ui: &mut Ui, method: &str, args: &Vec<Value>) -> result::Result<(), Stri
"scroll" => ui.on_scroll(try_int!(args[0])),
"update_bg" => ui.on_update_bg(try_int!(args[0])),
"update_fg" => ui.on_update_fg(try_int!(args[0])),
"update_sp" => ui.on_update_sp(try_int!(args[0])),
"mode_change" => ui.on_mode_change(try_str!(args[0])),
"mouse_on" => ui.on_mouse_on(),
"mouse_off" => ui.on_mouse_off(),

66
src/ui.rs
View File

@ -16,7 +16,7 @@ use gdk_sys;
use glib;
use neovim_lib::{Neovim, NeovimApi, Value, Integer};
use ui_model::{UiModel, Attrs, Color, COLOR_BLACK, COLOR_WHITE};
use ui_model::{UiModel, Attrs, Color, COLOR_BLACK, COLOR_WHITE, COLOR_RED};
use nvim::{RedrawEvents, GuiApi, ErrorReport};
use input::{convert_key, keyval_to_input_string};
@ -51,6 +51,7 @@ pub struct Ui {
cur_attrs: Option<Attrs>,
bg_color: Color,
fg_color: Color,
sp_color: Color,
line_height: Option<f64>,
char_width: Option<f64>,
resize_timer: Option<glib::SourceId>,
@ -71,6 +72,7 @@ impl Ui {
cur_attrs: None,
bg_color: COLOR_BLACK,
fg_color: COLOR_WHITE,
sp_color: COLOR_RED,
line_height: None,
char_width: None,
resize_timer: None,
@ -96,12 +98,14 @@ impl Ui {
pub fn init(&mut self, app: &gtk::Application) {
self.header_bar.set_show_close_button(true);
let save_image = Image::new_from_icon_name("document-save", gtk_sys::GTK_ICON_SIZE_SMALL_TOOLBAR as i32);
let save_image = Image::new_from_icon_name("document-save",
gtk_sys::GTK_ICON_SIZE_SMALL_TOOLBAR as i32);
let save_btn = ToolButton::new(Some(&save_image), None);
save_btn.connect_clicked(|_| edit_save_all());
self.header_bar.pack_start(&save_btn);
let paste_image = Image::new_from_icon_name("edit-paste", gtk_sys::GTK_ICON_SIZE_SMALL_TOOLBAR as i32);
let paste_image = Image::new_from_icon_name("edit-paste",
gtk_sys::GTK_ICON_SIZE_SMALL_TOOLBAR as i32);
let paste_btn = ToolButton::new(Some(&paste_image), None);
paste_btn.connect_clicked(|_| edit_paste());
self.header_bar.pack_start(&paste_btn);
@ -114,7 +118,7 @@ impl Ui {
self.drawing_area
.set_events((gdk_sys::GDK_BUTTON_RELEASE_MASK | gdk_sys::GDK_BUTTON_PRESS_MASK |
gdk_sys::GDK_BUTTON_MOTION_MASK)
.bits() as i32);
.bits() as i32);
self.drawing_area.connect_button_press_event(gtk_button_press);
self.drawing_area.connect_button_release_event(gtk_button_release);
self.drawing_area.connect_motion_notify_event(gtk_motion_notify);
@ -220,7 +224,7 @@ fn quit() {
let nvim = ui.nvim();
nvim.ui_detach().expect("Error in ui_detach");
//nvim.quit_no_save().expect("Can't stop nvim instance");
// nvim.quit_no_save().expect("Can't stop nvim instance");
});
}
@ -343,14 +347,9 @@ fn draw(ui: &Ui, ctx: &cairo::Context) {
ctx.move_to(current_point.0, current_point.1);
}
if !cell.ch.is_whitespace() {
desc.unset_fields(pango::FONT_MASK_STYLE | pango::FONT_MASK_WEIGHT);
if cell.attrs.italic {
desc.set_style(pango::Style::Italic);
}
if cell.attrs.bold {
desc.set_weight(pango::Weight::Bold);
}
update_font_description(&mut desc, &cell.attrs);
layout.set_font_description(Some(&desc));
buf.clear();
@ -362,6 +361,25 @@ fn draw(ui: &Ui, ctx: &cairo::Context) {
pc::show_layout(ctx, &layout);
}
if cell.attrs.underline || cell.attrs.undercurl {
// [TODO]: Current gtk-rs bindings does not provide fontmetrics access
// so it is not possible to find right position for underline or undercurl position
// update_font_description(&mut desc, &cell.attrs);
// layout.get_context().unwrap().get_metrics();
let top_offset = line_height - 1.0;
if cell.attrs.undercurl {
ctx.move_to(current_point.0, line_y + top_offset);
ctx.line_to(current_point.0 + char_width,
line_y + top_offset);
}
else if cell.attrs.underline {
ctx.move_to(current_point.0, line_y + top_offset);
ctx.line_to(current_point.0 + char_width,
line_y + top_offset);
}
}
ctx.move_to(current_point.0 + char_width, current_point.1);
}
@ -371,6 +389,17 @@ fn draw(ui: &Ui, ctx: &cairo::Context) {
}
#[inline]
fn update_font_description(desc: &mut FontDescription, attrs: &Attrs) {
desc.unset_fields(pango::FONT_MASK_STYLE | pango::FONT_MASK_WEIGHT);
if attrs.italic {
desc.set_style(pango::Style::Italic);
}
if attrs.bold {
desc.set_weight(pango::Weight::Bold);
}
}
fn calc_char_bounds(ui: &Ui, ctx: &cairo::Context) -> (i32, i32) {
let layout = pc::create_layout(ctx);
@ -447,6 +476,9 @@ impl RedrawEvents for Ui {
if let Some(&Value::Integer(Integer::U64(bg))) = attrs.get("background") {
model_attrs.background = Some(split_color(bg));
}
if let Some(&Value::Integer(Integer::U64(bg))) = attrs.get("special") {
model_attrs.special = Some(split_color(bg));
}
if attrs.contains_key("reverse") {
let fg = if let Some(ref fg) = model_attrs.foreground {
fg.clone()
@ -463,6 +495,8 @@ impl RedrawEvents for Ui {
}
model_attrs.bold = attrs.contains_key("bold");
model_attrs.italic = attrs.contains_key("italic");
model_attrs.underline = attrs.contains_key("underline");
model_attrs.undercurl = attrs.contains_key("undercurl");
self.cur_attrs = Some(model_attrs);
}
@ -482,6 +516,14 @@ impl RedrawEvents for Ui {
}
}
fn on_update_sp(&mut self, sp: i64) {
if sp >= 0 {
self.sp_color = split_color(sp as u64);
} else {
self.sp_color = COLOR_RED;
}
}
fn on_mode_change(&mut self, mode: &str) {
match mode {
"normal" => self.mode = NvimMode::Normal,

10
src/ui_model.rs
View File

@ -4,13 +4,17 @@ pub struct Color(pub f64, pub f64, pub f64);
pub const COLOR_BLACK: Color = Color(0.0, 0.0, 0.0);
pub const COLOR_WHITE: Color = Color(1.0, 1.0, 1.0);
pub const COLOR_RED: Color = Color(1.0, 0.0, 0.0);
#[derive(Clone)]
pub struct Attrs {
pub italic: bool,
pub bold: bool,
pub underline: bool,
pub undercurl: bool,
pub foreground: Option<Color>,
pub background: Option<Color>,
pub special: Option<Color>,
}
impl Attrs {
@ -18,16 +22,22 @@ impl Attrs {
Attrs {
foreground: None,
background: None,
special: None,
italic: false,
bold: false,
underline: false,
undercurl: false,
}
}
fn clear(&mut self) {
self.italic = false;
self.bold = false;
self.underline = false;
self.undercurl = false;
self.foreground = None;
self.background = None;
self.special = None;
}
}