From 038201647c657b2b07fa7f87aae3c609c59c77ef Mon Sep 17 00:00:00 2001 From: Jan Hrastnik Date: Sun, 4 Oct 2020 23:47:37 +0200 Subject: started work on goto mode --- helix-term/src/editor.rs | 16 + helix-term/test.txt | 1000 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 1016 insertions(+) create mode 100644 helix-term/test.txt (limited to 'helix-term') diff --git a/helix-term/src/editor.rs b/helix-term/src/editor.rs index 70b5758e..266c0198 100644 --- a/helix-term/src/editor.rs +++ b/helix-term/src/editor.rs @@ -254,6 +254,7 @@ impl Editor { let mode = match view.state.mode() { Mode::Insert => "INS", Mode::Normal => "NOR", + Mode::Goto => "GOTO", }; self.surface.set_style( Rect::new(0, self.size.1 - 1, self.size.0, 1), @@ -278,6 +279,7 @@ impl Editor { match view.state.mode() { Mode::Insert => write!(stdout, "\x1B[6 q"), Mode::Normal => write!(stdout, "\x1B[2 q"), + Mode::Goto => write!(stdout, "\x1B[2 q"), }; // render the cursor @@ -326,6 +328,7 @@ impl Editor { }))) => { break; } + Some(Ok(Event::Key(event))) => { if let Some(view) = &mut self.view { match view.state.mode() { @@ -356,6 +359,19 @@ impl Editor { // TODO: simplistic ensure cursor in view for now view.ensure_cursor_in_view(); + self.render(); + } + } + Mode::Goto => { + // TODO: handle modes and sequences (`gg`) + let keys = vec![event]; + if let Some(command) = keymap[&Mode::Goto].get(&keys) { + // TODO: handle count other than 1 + command(view, 1); + + // TODO: simplistic ensure cursor in view for now + view.ensure_cursor_in_view(); + self.render(); } } diff --git a/helix-term/test.txt b/helix-term/test.txt new file mode 100644 index 00000000..11798245 --- /dev/null +++ b/helix-term/test.txt @@ -0,0 +1,1000 @@ +1 +2 +3 +4 +5 +6 +7 +8 +9 +10 +11 +12 +13 +14 +15 +16 +17 +18 +19 +20 +21 +22 +23 +24 +25 +26 +27 +28 +29 +30 +31 +32 +33 +34 +35 +36 +37 +38 +39 +40 +41 +42 +43 +44 +45 +46 +47 +48 +49 +50 +51 +52 +53 +54 +55 +56 +57 +58 +59 +60 +61 +62 +63 +64 +65 +66 +67 +68 +69 +70 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(limited to 'helix-term') diff --git a/helix-term/src/editor.rs b/helix-term/src/editor.rs index 266c0198..acb742b2 100644 --- a/helix-term/src/editor.rs +++ b/helix-term/src/editor.rs @@ -87,7 +87,7 @@ impl Editor { // TODO: inefficient, should feed chunks.iter() to tree_sitter.parse_with(|offset, pos|) let source_code = view.state.doc().to_string(); - let last_line = view.last_line(viewport); + let last_line = view.last_line(); let range = { // calculate viewport byte ranges @@ -286,7 +286,7 @@ impl Editor { let pos = view.state.selection().cursor(); let pos = view - .screen_coords_at_pos(&view.state.doc().slice(..), pos, area) + .screen_coords_at_pos(&view.state.doc().slice(..), pos) .expect("Cursor is out of bounds."); execute!( diff --git a/helix-view/src/commands.rs b/helix-view/src/commands.rs index 0b985dc6..b2223d48 100644 --- a/helix-view/src/commands.rs +++ b/helix-view/src/commands.rs @@ -13,6 +13,8 @@ use crate::view::View; /// state (usually by creating and applying a transaction). pub type Command = fn(view: &mut View, count: usize); +const PADDING: u16 = 10; + pub fn move_char_left(view: &mut View, count: usize) { // TODO: use a transaction let selection = view @@ -127,7 +129,7 @@ pub fn move_file_start(view: &mut View, _count: usize) { pub fn move_file_end(view: &mut View, _count: usize) { // TODO: use a transaction let text = &view.state.doc; - let last_line = text.line_to_char(text.len_lines().checked_sub(2).unwrap()); + let last_line = text.line_to_char(text.len_lines().saturating_sub(2)); view.state.selection = Selection::single(last_line, last_line); view.state.mode = Mode::Normal; @@ -136,7 +138,7 @@ pub fn move_file_end(view: &mut View, _count: usize) { pub fn check_cursor_in_view(view: &mut View) -> bool { let cursor = view.state.selection().cursor(); let line = view.state.doc().char_to_line(cursor) as u16; - let document_end = view.first_line + view.size.1.saturating_sub(1) - 1; + let document_end = view.first_line + view.size.1.saturating_sub(2); let padding = 5u16; if (line > document_end.saturating_sub(padding)) | (line < view.first_line + padding) { @@ -148,44 +150,37 @@ pub fn check_cursor_in_view(view: &mut View) -> bool { pub fn page_up(view: &mut View, _count: usize) { let text = &view.state.doc; view.first_line = view.first_line.saturating_sub(view.size.1); + let pos = text.line_to_char(view.first_line as usize); - view.state.selection = Selection::single( - text.line_to_char(view.first_line as usize), - text.line_to_char(view.first_line as usize), - ); + view.state.selection = Selection::single(pos, pos); } pub fn page_down(view: &mut View, _count: usize) { let text = &view.state.doc; - view.first_line += view.size.1; - - view.state.selection = Selection::single( - text.line_to_char(view.first_line as usize), - text.line_to_char(view.first_line as usize), - ); + view.first_line += view.size.1 + PADDING; + if view.first_line < view.state.doc().len_lines() as u16 { + let pos = text.line_to_char(view.first_line as usize); + view.state.selection = Selection::single(pos, pos); + } } pub fn half_page_up(view: &mut View, _count: usize) { view.first_line = view.first_line.saturating_sub(view.size.1 / 2); - if !check_cursor_in_view(view) { let text = &view.state.doc; - view.state.selection = Selection::single( - text.line_to_char(view.first_line as usize), - text.line_to_char(view.first_line as usize), - ); + let pos = text.line_to_char(view.first_line as usize); + view.state.selection = Selection::single(pos, pos); } } pub fn half_page_down(view: &mut View, _count: usize) { - view.first_line += view.size.1 / 2; - + if view.first_line < view.state.doc().len_lines() as u16 - view.size.1 { + view.first_line += view.size.1 / 2; + } if !check_cursor_in_view(view) { let text = &view.state.doc; - view.state.selection = Selection::single( - text.line_to_char(view.first_line as usize), - text.line_to_char(view.first_line as usize), - ); + let pos = text.line_to_char(view.first_line as usize); + view.state.selection = Selection::single(pos, pos); } } // avoid select by default by having a visual mode switch that makes movements into selects diff --git a/helix-view/src/view.rs b/helix-view/src/view.rs index 09cd4c65..0e6705f0 100644 --- a/helix-view/src/view.rs +++ b/helix-view/src/view.rs @@ -34,7 +34,7 @@ impl View { pub fn ensure_cursor_in_view(&mut self) { let cursor = self.state.selection().cursor(); let line = self.state.doc().char_to_line(cursor) as u16; - let document_end = self.first_line + self.size.1.saturating_sub(1) - 1; + let document_end = self.first_line + self.size.1.saturating_sub(2); let padding = 5u16; @@ -51,7 +51,8 @@ impl View { /// Calculates the last visible line on screen #[inline] - pub fn last_line(&self, viewport: Rect) -> usize { + pub fn last_line(&self) -> usize { + let viewport = Rect::new(6, 0, self.size.0, self.size.1 - 1); // - 1 for statusline std::cmp::min( (self.first_line + viewport.height) as usize, self.state.doc().len_lines() - 1, @@ -61,15 +62,10 @@ impl View { /// Translates a document position to an absolute position in the terminal. /// Returns a (line, col) position if the position is visible on screen. // TODO: Could return width as well for the character width at cursor. - pub fn screen_coords_at_pos( - &self, - text: &RopeSlice, - pos: usize, - viewport: Rect, - ) -> Option { + pub fn screen_coords_at_pos(&self, text: &RopeSlice, pos: usize) -> Option { let line = text.char_to_line(pos); - if line < self.first_line as usize || line > self.last_line(viewport) { + if line < self.first_line as usize || line > self.last_line() { // Line is not visible on screen return None; } -- cgit v1.2.3-70-g09d2 From 7f07e6676801be72e5a58b5612893c7d16f94a64 Mon Sep 17 00:00:00 2001 From: Blaž Hrastnik Date: Tue, 6 Oct 2020 17:32:30 +0900 Subject: Cleanup: track first_line as usize. --- helix-term/src/editor.rs | 2 +- helix-view/src/commands.rs | 28 ++++++++++++++-------------- helix-view/src/view.rs | 10 +++++----- 3 files changed, 20 insertions(+), 20 deletions(-) (limited to 'helix-term') diff --git a/helix-term/src/editor.rs b/helix-term/src/editor.rs index acb742b2..09d66c5a 100644 --- a/helix-term/src/editor.rs +++ b/helix-term/src/editor.rs @@ -219,7 +219,7 @@ impl Editor { } let style: Style = view.theme.get("ui.linenr"); - for (i, line) in (view.first_line..(last_line as u16)).enumerate() { + for (i, line) in (view.first_line..last_line).enumerate() { self.surface .set_stringn(0, i as u16, format!("{:>5}", line + 1), 5, style); // lavender diff --git a/helix-view/src/commands.rs b/helix-view/src/commands.rs index 9ebdb4c4..19853c37 100644 --- a/helix-view/src/commands.rs +++ b/helix-view/src/commands.rs @@ -13,7 +13,7 @@ use crate::view::View; /// state (usually by creating and applying a transaction). pub type Command = fn(view: &mut View, count: usize); -const PADDING: u16 = 5; +const PADDING: usize = 5; pub fn move_char_left(view: &mut View, count: usize) { // TODO: use a transaction @@ -137,8 +137,8 @@ pub fn move_file_end(view: &mut View, _count: usize) { pub fn check_cursor_in_view(view: &mut View) -> bool { let cursor = view.state.selection().cursor(); - let line = view.state.doc().char_to_line(cursor) as u16; - let document_end = view.first_line + view.size.1.saturating_sub(1); + let line = view.state.doc().char_to_line(cursor); + let document_end = view.first_line + view.size.1.saturating_sub(1) as usize; if (line > document_end.saturating_sub(PADDING)) | (line < view.first_line + PADDING) { return false; @@ -147,28 +147,28 @@ pub fn check_cursor_in_view(view: &mut View) -> bool { } pub fn page_up(view: &mut View, _count: usize) { - let text = &view.state.doc; - view.first_line = view.first_line.saturating_sub(view.size.1); - let pos = text.line_to_char(view.last_line() as usize); + view.first_line = view.first_line.saturating_sub(view.size.1 as usize); if !check_cursor_in_view(view) { - let text = &view.state.doc; + let text = view.state.doc(); let pos = text.line_to_char(view.last_line().saturating_sub(PADDING as usize)); view.state.selection = Selection::single(pos, pos); } } pub fn page_down(view: &mut View, _count: usize) { - let text = &view.state.doc; - view.first_line += view.size.1 + PADDING; - if view.first_line < view.state.doc().len_lines() as u16 { + view.first_line += view.size.1 as usize + PADDING; + + if view.first_line < view.state.doc().len_lines() { + let text = view.state.doc(); let pos = text.line_to_char(view.first_line as usize); view.state.selection = Selection::single(pos, pos); } } pub fn half_page_up(view: &mut View, _count: usize) { - view.first_line = view.first_line.saturating_sub(view.size.1 / 2); + view.first_line = view.first_line.saturating_sub(view.size.1 as usize / 2); + if !check_cursor_in_view(view) { let text = &view.state.doc; let pos = text.line_to_char(view.last_line() - PADDING as usize); @@ -178,11 +178,11 @@ pub fn half_page_up(view: &mut View, _count: usize) { pub fn half_page_down(view: &mut View, _count: usize) { let lines = view.state.doc().len_lines(); - if view.first_line < lines.saturating_sub(view.size.1 as usize) as u16 { - view.first_line += view.size.1 / 2; + if view.first_line < lines.saturating_sub(view.size.1 as usize) { + view.first_line += view.size.1 as usize / 2; } if !check_cursor_in_view(view) { - let text = &view.state.doc; + let text = view.state.doc(); let pos = text.line_to_char(view.first_line as usize); view.state.selection = Selection::single(pos, pos); } diff --git a/helix-view/src/view.rs b/helix-view/src/view.rs index 6ef5ee6f..887c45a2 100644 --- a/helix-view/src/view.rs +++ b/helix-view/src/view.rs @@ -11,7 +11,7 @@ use tui::layout::Rect; pub struct View { pub state: State, - pub first_line: u16, + pub first_line: usize, pub size: (u16, u16), pub theme: Theme, // TODO: share one instance } @@ -33,10 +33,10 @@ impl View { pub fn ensure_cursor_in_view(&mut self) { let cursor = self.state.selection().cursor(); - let line = self.state.doc().char_to_line(cursor) as u16; - let document_end = self.first_line + self.size.1.saturating_sub(1); + let line = self.state.doc().char_to_line(cursor); + let document_end = self.first_line + (self.size.1 as usize).saturating_sub(1); - let padding = 5u16; + let padding = 5usize; // TODO: side scroll @@ -54,7 +54,7 @@ impl View { pub fn last_line(&self) -> usize { let viewport = Rect::new(6, 0, self.size.0, self.size.1 - 1); // - 1 for statusline std::cmp::min( - (self.first_line + viewport.height) as usize, + self.first_line + (viewport.height as usize), self.state.doc().len_lines() - 1, ) } -- cgit v1.2.3-70-g09d2