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Implement save/restore cursor position
This passes the vttest for save and restore cursor position. The implementation was done according to: http://www.vt100.net/docs/vt510-rm/DECSC.html As of yet, there are a few things not supported by the terminal which should otherwise be saved/restored. vte was updated for a fix with CSI param parsing
This commit is contained in:
parent
b27d1266d6
commit
40d7c0c434
4 changed files with 139 additions and 99 deletions
6
Cargo.lock
generated
6
Cargo.lock
generated
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@ -23,7 +23,7 @@ dependencies = [
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"serde_derive 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_json 0.9.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"serde_yaml 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
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"vte 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
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"vte 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
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"xdg 2.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
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]
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@ -1098,7 +1098,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "vte"
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version = "0.2.1"
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version = "0.2.2"
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source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"utf8parse 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
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@ -1344,7 +1344,7 @@ dependencies = [
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"checksum utf8parse 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a15ea87f3194a3a454c78d79082b4f5e85f6956ddb6cb86bbfbe4892aa3c0323"
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"checksum vec_map 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "cac5efe5cb0fa14ec2f84f83c701c562ee63f6dcc680861b21d65c682adfb05f"
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"checksum void 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6a02e4885ed3bc0f2de90ea6dd45ebcbb66dacffe03547fadbb0eeae2770887d"
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"checksum vte 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0221cd88a06e81dea3ef4dcad02a881b19c03c48b6e6a34875cb301ec8de78d9"
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"checksum vte 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "8abafc42c98c6e9f8ee68f3b55daf55d2af7047052facec9f6ac08f4e2addfa1"
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"checksum walkdir 0.1.8 (registry+https://github.com/rust-lang/crates.io-index)" = "c66c0b9792f0a765345452775f3adbd28dde9d33f30d13e5dcc5ae17cf6f3780"
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"checksum wayland-client 0.5.12 (registry+https://github.com/rust-lang/crates.io-index)" = "ced3094c157b5cc0a08d40530e1a627d9f88b9a436971338d2646439128a559e"
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"checksum wayland-kbd 0.3.6 (registry+https://github.com/rust-lang/crates.io-index)" = "73bc10e84c1da90777beffecd24742baea17564ffc2a9918af41871c748eb050"
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@ -27,7 +27,7 @@ parking_lot = { version = "0.3.1", features = ["nightly"] }
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serde = "0.9"
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serde_yaml = "0.6"
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serde_derive = "0.9"
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vte = "0.2.1"
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vte = "0.2.2"
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mio = "0.6"
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serde_json = "0.9"
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copypasta = { path = "./copypasta" }
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12
src/ansi.rs
12
src/ansi.rs
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@ -462,6 +462,12 @@ pub enum CharsetIndex {
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G3,
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}
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impl Default for CharsetIndex {
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fn default() -> Self {
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CharsetIndex::G0
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}
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}
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/// Standard or common character sets which can be designated as G0-G3
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#[derive(Clone, Copy, Debug, Eq, PartialEq)]
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pub enum StandardCharset {
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@ -469,6 +475,12 @@ pub enum StandardCharset {
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SpecialCharacterAndLineDrawing,
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}
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impl Default for StandardCharset {
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fn default() -> Self {
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StandardCharset::Ascii
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}
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}
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impl<'a, H, W> vte::Perform for Performer<'a, H, W>
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where H: Handler + TermInfo + 'a,
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W: io::Write + 'a
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218
src/term/mod.rs
218
src/term/mod.rs
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@ -271,14 +271,9 @@ impl CharsetMapping for StandardCharset {
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}
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}
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#[derive(Default, Copy, Clone)]
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struct Charsets([StandardCharset; 4]);
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impl Charsets {
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fn new() -> Charsets {
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Charsets([StandardCharset::Ascii; 4])
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}
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}
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impl Index<CharsetIndex> for Charsets {
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type Output = StandardCharset;
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fn index(&self, index: CharsetIndex) -> &StandardCharset {
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@ -292,6 +287,18 @@ impl IndexMut<CharsetIndex> for Charsets {
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}
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}
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#[derive(Default, Copy, Clone)]
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pub struct Cursor {
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/// The location of this cursor
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point: Point,
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/// Template cell when using this cursor
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template: Cell,
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/// Currently configured graphic character sets
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charsets: Charsets,
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}
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pub struct Term {
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/// The grid
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grid: Grid<Cell>,
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@ -315,13 +322,7 @@ pub struct Term {
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alt: bool,
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/// The cursor
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cursor: Point,
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/// Alt cursor
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alt_cursor: Point,
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/// Currently configured graphic character sets
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charsets: Charsets,
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cursor: Cursor,
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/// The graphic character set, out of `charsets`, which ASCII is currently
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/// being mapped to
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@ -339,15 +340,18 @@ pub struct Term {
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/// Size
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size_info: SizeInfo,
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/// Template cell
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template_cell: Cell,
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/// Empty cell
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empty_cell: Cell,
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pub dirty: bool,
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custom_cursor_colors: bool,
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/// Saved cursor from main grid
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cursor_save: Cursor,
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/// Saved cursor from alt grid
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cursor_save_alt: Cursor,
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}
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/// Terminal size info
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@ -422,15 +426,14 @@ impl Term {
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grid: grid,
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alt_grid: alt,
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alt: false,
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cursor: Point::default(),
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alt_cursor: Point::default(),
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active_charset: CharsetIndex::G0,
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charsets: Charsets::new(),
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active_charset: Default::default(),
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cursor: Default::default(),
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cursor_save: Default::default(),
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cursor_save_alt: Default::default(),
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tabs: tabs,
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mode: Default::default(),
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scroll_region: scroll_region,
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size_info: size,
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template_cell: template,
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empty_cell: template,
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custom_cursor_colors: config.custom_cursor_colors(),
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}
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@ -590,7 +593,13 @@ impl Term {
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/// background color. Cells with an alternate background color are
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/// considered renderable as are cells with any text content.
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pub fn renderable_cells(&mut self, selection: &Selection) -> RenderableCellsIter {
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RenderableCellsIter::new(&mut self.grid, &self.cursor, self.mode, selection, self.custom_cursor_colors)
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RenderableCellsIter::new(
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&mut self.grid,
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&self.cursor.point,
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self.mode,
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selection,
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self.custom_cursor_colors
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)
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}
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/// Resize terminal to new dimensions
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@ -628,22 +637,22 @@ impl Term {
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self.scroll_region = Line(0)..self.grid.num_lines();
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// Scroll up to keep cursor in terminal
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if self.cursor.line >= num_lines {
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let lines = self.cursor.line - num_lines + 1;
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if self.cursor.point.line >= num_lines {
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let lines = self.cursor.point.line - num_lines + 1;
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self.scroll_up(lines);
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self.cursor.line -= lines;
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self.cursor.point.line -= lines;
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}
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println!("num_cols, num_lines = {}, {}", num_cols, num_lines);
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// Resize grids to new size
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let template = self.template_cell;
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let template = self.cursor.template;
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self.grid.resize(num_lines, num_cols, &template);
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self.alt_grid.resize(num_lines, num_cols, &template);
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// Ensure cursor is in-bounds
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self.cursor.line = limit(self.cursor.line, Line(0), num_lines - 1);
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self.cursor.col = limit(self.cursor.col, Column(0), num_cols - 1);
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self.cursor.point.line = limit(self.cursor.point.line, Line(0), num_lines - 1);
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self.cursor.point.col = limit(self.cursor.point.col, Column(0), num_cols - 1);
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// Recreate tabs list
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self.tabs = IndexRange::from(Column(0)..self.grid.num_cols())
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@ -655,8 +664,8 @@ impl Term {
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if num_lines > old_lines {
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// Make sure bottom of terminal is clear
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let template = self.empty_cell;
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self.grid.clear_region((self.cursor.line + 1).., |c| c.reset(&template));
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self.alt_grid.clear_region((self.cursor.line + 1).., |c| c.reset(&template));
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self.grid.clear_region((self.cursor.point.line + 1).., |c| c.reset(&template));
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self.alt_grid.clear_region((self.cursor.point.line + 1).., |c| c.reset(&template));
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}
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// Reset scrolling region to new size
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@ -676,7 +685,6 @@ impl Term {
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pub fn swap_alt(&mut self) {
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self.alt = !self.alt;
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::std::mem::swap(&mut self.grid, &mut self.alt_grid);
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::std::mem::swap(&mut self.cursor, &mut self.alt_cursor);
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if self.alt {
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let template = self.empty_cell;
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@ -782,32 +790,32 @@ impl ansi::Handler for Term {
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{
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let location = Point {
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line: self.cursor.line,
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col: self.cursor.col
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line: self.cursor.point.line,
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col: self.cursor.point.col
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};
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let cell = &mut self.grid[&location];
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cell.flags.insert(cell::WRAPLINE);
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}
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if (self.cursor.line + 1) >= self.scroll_region.end {
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if (self.cursor.point.line + 1) >= self.scroll_region.end {
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self.linefeed();
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} else {
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self.cursor.line += 1;
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self.cursor.point.line += 1;
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}
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self.cursor.col = Column(0);
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self.cursor.point.col = Column(0);
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self.input_needs_wrap = false;
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}
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{
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let cell = &mut self.grid[&self.cursor];
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*cell = self.template_cell;
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cell.c = self.charsets[self.active_charset].map(c);
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let cell = &mut self.grid[&self.cursor.point];
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*cell = self.cursor.template;
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cell.c = self.cursor.charsets[self.active_charset].map(c);
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}
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if (self.cursor.col + 1) < self.grid.num_cols() {
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self.cursor.col += 1;
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if (self.cursor.point.col + 1) < self.grid.num_cols() {
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self.cursor.point.col += 1;
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} else {
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self.input_needs_wrap = true;
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}
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@ -817,22 +825,22 @@ impl ansi::Handler for Term {
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#[inline]
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fn goto(&mut self, line: Line, col: Column) {
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trace!("goto: line={}, col={}", line, col);
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self.cursor.line = min(line, self.grid.num_lines() - 1);
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self.cursor.col = min(col, self.grid.num_cols() - 1);
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self.cursor.point.line = min(line, self.grid.num_lines() - 1);
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self.cursor.point.col = min(col, self.grid.num_cols() - 1);
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self.input_needs_wrap = false;
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}
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#[inline]
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fn goto_line(&mut self, line: Line) {
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trace!("goto_line: {}", line);
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self.cursor.line = min(line, self.grid.num_lines() - 1);
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self.cursor.point.line = min(line, self.grid.num_lines() - 1);
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self.input_needs_wrap = false;
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}
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#[inline]
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fn goto_col(&mut self, col: Column) {
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trace!("goto_col: {}", col);
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self.cursor.col = min(col, self.grid.num_cols() - 1);
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self.cursor.point.col = min(col, self.grid.num_cols() - 1);
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self.input_needs_wrap = false;
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}
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@ -840,13 +848,13 @@ impl ansi::Handler for Term {
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fn insert_blank(&mut self, count: Column) {
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// Ensure inserting within terminal bounds
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let count = min(count, self.size_info.cols() - self.cursor.col);
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let count = min(count, self.size_info.cols() - self.cursor.point.col);
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let source = self.cursor.col;
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let destination = self.cursor.col + count;
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let source = self.cursor.point.col;
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let destination = self.cursor.point.col + count;
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let num_cells = (self.size_info.cols() - destination).0;
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let line = self.cursor.line; // borrowck
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let line = self.cursor.point.line; // borrowck
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let line = &mut self.grid[line];
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unsafe {
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@ -867,27 +875,27 @@ impl ansi::Handler for Term {
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#[inline]
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fn move_up(&mut self, lines: Line) {
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trace!("move_up: {}", lines);
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let lines = min(self.cursor.line, lines);
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self.cursor.line = min(self.cursor.line - lines, self.grid.num_lines() -1);
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let lines = min(self.cursor.point.line, lines);
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self.cursor.point.line = min(self.cursor.point.line - lines, self.grid.num_lines() -1);
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}
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#[inline]
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fn move_down(&mut self, lines: Line) {
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trace!("move_down: {}", lines);
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self.cursor.line = min(self.cursor.line + lines, self.grid.num_lines() - 1);
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self.cursor.point.line = min(self.cursor.point.line + lines, self.grid.num_lines() - 1);
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}
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#[inline]
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fn move_forward(&mut self, cols: Column) {
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trace!("move_forward: {}", cols);
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self.cursor.col = min(self.cursor.col + cols, self.grid.num_cols() - 1);
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self.cursor.point.col = min(self.cursor.point.col + cols, self.grid.num_cols() - 1);
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self.input_needs_wrap = false;
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}
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#[inline]
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fn move_backward(&mut self, cols: Column) {
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trace!("move_backward: {}", cols);
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self.cursor.col -= min(self.cursor.col, cols);
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self.cursor.point.col -= min(self.cursor.point.col, cols);
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self.input_needs_wrap = false;
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}
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@ -910,7 +918,7 @@ impl ansi::Handler for Term {
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fn put_tab(&mut self, mut count: i64) {
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trace!("put_tab: {}", count);
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let mut col = self.cursor.col;
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let mut col = self.cursor.point.col;
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while col < self.grid.num_cols() && count != 0 {
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count -= 1;
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loop {
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@ -921,7 +929,7 @@ impl ansi::Handler for Term {
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}
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}
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self.cursor.col = col;
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self.cursor.point.col = col;
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self.input_needs_wrap = false;
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}
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@ -929,8 +937,8 @@ impl ansi::Handler for Term {
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#[inline]
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fn backspace(&mut self) {
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trace!("backspace");
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if self.cursor.col > Column(0) {
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self.cursor.col -= 1;
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if self.cursor.point.col > Column(0) {
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self.cursor.point.col -= 1;
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self.input_needs_wrap = false;
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}
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}
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@ -939,7 +947,7 @@ impl ansi::Handler for Term {
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#[inline]
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fn carriage_return(&mut self) {
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trace!("carriage_return");
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self.cursor.col = Column(0);
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self.cursor.point.col = Column(0);
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self.input_needs_wrap = false;
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}
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@ -947,10 +955,10 @@ impl ansi::Handler for Term {
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#[inline]
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fn linefeed(&mut self) {
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trace!("linefeed");
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if (self.cursor.line + 1) >= self.scroll_region.end {
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if (self.cursor.point.line + 1) >= self.scroll_region.end {
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self.scroll_up(Line(1));
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} else {
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self.cursor.line += 1;
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self.cursor.point.line += 1;
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}
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}
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@ -990,8 +998,8 @@ impl ansi::Handler for Term {
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#[inline]
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fn insert_blank_lines(&mut self, lines: Line) {
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trace!("insert_blank_lines: {}", lines);
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if self.scroll_region.contains_(self.cursor.line) {
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let origin = self.cursor.line;
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if self.scroll_region.contains_(self.cursor.point.line) {
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let origin = self.cursor.point.line;
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self.scroll_down_relative(origin, lines);
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}
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}
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@ -999,19 +1007,19 @@ impl ansi::Handler for Term {
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#[inline]
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fn delete_lines(&mut self, lines: Line) {
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trace!("delete_lines: {}", lines);
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if self.scroll_region.contains_(self.cursor.line) {
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let origin = self.cursor.line;
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if self.scroll_region.contains_(self.cursor.point.line) {
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||||
let origin = self.cursor.point.line;
|
||||
self.scroll_up_relative(origin, lines);
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn erase_chars(&mut self, count: Column) {
|
||||
trace!("erase_chars: {}, {}", count, self.cursor.col);
|
||||
let start = self.cursor.col;
|
||||
trace!("erase_chars: {}, {}", count, self.cursor.point.col);
|
||||
let start = self.cursor.point.col;
|
||||
let end = min(start + count, self.grid.num_cols() - 1);
|
||||
|
||||
let row = &mut self.grid[self.cursor.line];
|
||||
let row = &mut self.grid[self.cursor.point.line];
|
||||
let template = self.empty_cell;
|
||||
for c in &mut row[start..end] {
|
||||
c.reset(&template);
|
||||
|
@ -1023,11 +1031,11 @@ impl ansi::Handler for Term {
|
|||
// Ensure deleting within terminal bounds
|
||||
let count = min(count, self.size_info.cols());
|
||||
|
||||
let start = self.cursor.col;
|
||||
let start = self.cursor.point.col;
|
||||
let end = min(start + count, self.grid.num_cols() - 1);
|
||||
let n = (self.size_info.cols() - end).0;
|
||||
|
||||
let line = self.cursor.line; // borrowck
|
||||
let line = self.cursor.point.line; // borrowck
|
||||
let line = &mut self.grid[line];
|
||||
|
||||
unsafe {
|
||||
|
@ -1058,35 +1066,49 @@ impl ansi::Handler for Term {
|
|||
|
||||
#[inline]
|
||||
fn save_cursor_position(&mut self) {
|
||||
trace!("[unimplemented] save_cursor_position");
|
||||
trace!("CursorSave");
|
||||
let mut holder = if self.alt {
|
||||
&mut self.cursor_save_alt
|
||||
} else {
|
||||
&mut self.cursor_save
|
||||
};
|
||||
|
||||
*holder = self.cursor;
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn restore_cursor_position(&mut self) {
|
||||
trace!("[unimplemented] restore_cursor_position");
|
||||
trace!("CursorRestore");
|
||||
let holder = if self.alt {
|
||||
&self.cursor_save_alt
|
||||
} else {
|
||||
&self.cursor_save
|
||||
};
|
||||
|
||||
self.cursor = *holder;
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn clear_line(&mut self, mode: ansi::LineClearMode) {
|
||||
trace!("clear_line: {:?}", mode);
|
||||
let template = self.empty_cell;
|
||||
let col = self.cursor.col;
|
||||
let col = self.cursor.point.col;
|
||||
|
||||
match mode {
|
||||
ansi::LineClearMode::Right => {
|
||||
let row = &mut self.grid[self.cursor.line];
|
||||
let row = &mut self.grid[self.cursor.point.line];
|
||||
for cell in &mut row[col..] {
|
||||
cell.reset(&template);
|
||||
}
|
||||
},
|
||||
ansi::LineClearMode::Left => {
|
||||
let row = &mut self.grid[self.cursor.line];
|
||||
let row = &mut self.grid[self.cursor.point.line];
|
||||
for cell in &mut row[..(col + 1)] {
|
||||
cell.reset(&template);
|
||||
}
|
||||
},
|
||||
ansi::LineClearMode::All => {
|
||||
let row = &mut self.grid[self.cursor.line];
|
||||
let row = &mut self.grid[self.cursor.point.line];
|
||||
for cell in &mut row[..] {
|
||||
cell.reset(&template);
|
||||
}
|
||||
|
@ -1100,7 +1122,7 @@ impl ansi::Handler for Term {
|
|||
let template = self.empty_cell;
|
||||
match mode {
|
||||
ansi::ClearMode::Below => {
|
||||
for row in &mut self.grid[self.cursor.line..] {
|
||||
for row in &mut self.grid[self.cursor.point.line..] {
|
||||
for cell in row {
|
||||
cell.reset(&template);
|
||||
}
|
||||
|
@ -1129,10 +1151,10 @@ impl ansi::Handler for Term {
|
|||
fn reverse_index(&mut self) {
|
||||
trace!("reverse_index");
|
||||
// if cursor is at the top
|
||||
if self.cursor.line == self.scroll_region.start {
|
||||
if self.cursor.point.line == self.scroll_region.start {
|
||||
self.scroll_down(Line(1));
|
||||
} else {
|
||||
self.cursor.line -= min(self.cursor.line, Line(1));
|
||||
self.cursor.point.line -= min(self.cursor.point.line, Line(1));
|
||||
}
|
||||
}
|
||||
|
||||
|
@ -1141,21 +1163,21 @@ impl ansi::Handler for Term {
|
|||
fn terminal_attribute(&mut self, attr: Attr) {
|
||||
trace!("Set Attribute: {:?}", attr);
|
||||
match attr {
|
||||
Attr::Foreground(color) => self.template_cell.fg = color,
|
||||
Attr::Background(color) => self.template_cell.bg = color,
|
||||
Attr::Foreground(color) => self.cursor.template.fg = color,
|
||||
Attr::Background(color) => self.cursor.template.bg = color,
|
||||
Attr::Reset => {
|
||||
self.template_cell.fg = Color::Named(NamedColor::Foreground);
|
||||
self.template_cell.bg = Color::Named(NamedColor::Background);
|
||||
self.template_cell.flags = cell::Flags::empty();
|
||||
self.cursor.template.fg = Color::Named(NamedColor::Foreground);
|
||||
self.cursor.template.bg = Color::Named(NamedColor::Background);
|
||||
self.cursor.template.flags = cell::Flags::empty();
|
||||
},
|
||||
Attr::Reverse => self.template_cell.flags.insert(cell::INVERSE),
|
||||
Attr::CancelReverse => self.template_cell.flags.remove(cell::INVERSE),
|
||||
Attr::Bold => self.template_cell.flags.insert(cell::BOLD),
|
||||
Attr::CancelBoldDim => self.template_cell.flags.remove(cell::BOLD),
|
||||
Attr::Italic => self.template_cell.flags.insert(cell::ITALIC),
|
||||
Attr::CancelItalic => self.template_cell.flags.remove(cell::ITALIC),
|
||||
Attr::Underscore => self.template_cell.flags.insert(cell::UNDERLINE),
|
||||
Attr::CancelUnderline => self.template_cell.flags.remove(cell::UNDERLINE),
|
||||
Attr::Reverse => self.cursor.template.flags.insert(cell::INVERSE),
|
||||
Attr::CancelReverse => self.cursor.template.flags.remove(cell::INVERSE),
|
||||
Attr::Bold => self.cursor.template.flags.insert(cell::BOLD),
|
||||
Attr::CancelBoldDim => self.cursor.template.flags.remove(cell::BOLD),
|
||||
Attr::Italic => self.cursor.template.flags.insert(cell::ITALIC),
|
||||
Attr::CancelItalic => self.cursor.template.flags.remove(cell::ITALIC),
|
||||
Attr::Underscore => self.cursor.template.flags.insert(cell::UNDERLINE),
|
||||
Attr::CancelUnderline => self.cursor.template.flags.remove(cell::UNDERLINE),
|
||||
_ => {
|
||||
debug!("Term got unhandled attr: {:?}", attr);
|
||||
}
|
||||
|
@ -1166,7 +1188,10 @@ impl ansi::Handler for Term {
|
|||
fn set_mode(&mut self, mode: ansi::Mode) {
|
||||
trace!("set_mode: {:?}", mode);
|
||||
match mode {
|
||||
ansi::Mode::SwapScreenAndSetRestoreCursor => self.swap_alt(),
|
||||
ansi::Mode::SwapScreenAndSetRestoreCursor => {
|
||||
self.save_cursor_position();
|
||||
self.swap_alt();
|
||||
},
|
||||
ansi::Mode::ShowCursor => self.mode.insert(mode::SHOW_CURSOR),
|
||||
ansi::Mode::CursorKeys => self.mode.insert(mode::APP_CURSOR),
|
||||
ansi::Mode::ReportMouseClicks => self.mode.insert(mode::MOUSE_REPORT_CLICK),
|
||||
|
@ -1184,7 +1209,10 @@ impl ansi::Handler for Term {
|
|||
fn unset_mode(&mut self,mode: ansi::Mode) {
|
||||
trace!("unset_mode: {:?}", mode);
|
||||
match mode {
|
||||
ansi::Mode::SwapScreenAndSetRestoreCursor => self.swap_alt(),
|
||||
ansi::Mode::SwapScreenAndSetRestoreCursor => {
|
||||
self.restore_cursor_position();
|
||||
self.swap_alt();
|
||||
},
|
||||
ansi::Mode::ShowCursor => self.mode.remove(mode::SHOW_CURSOR),
|
||||
ansi::Mode::CursorKeys => self.mode.remove(mode::APP_CURSOR),
|
||||
ansi::Mode::ReportMouseClicks => self.mode.remove(mode::MOUSE_REPORT_CLICK),
|
||||
|
@ -1221,7 +1249,7 @@ impl ansi::Handler for Term {
|
|||
#[inline]
|
||||
fn configure_charset(&mut self, index: CharsetIndex, charset: StandardCharset) {
|
||||
trace!("designate {:?} character set as {:?}", index, charset);
|
||||
self.charsets[index] = charset;
|
||||
self.cursor.charsets[index] = charset;
|
||||
}
|
||||
|
||||
#[inline]
|
||||
|
|
Loading…
Reference in a new issue