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author | Theodore Dubois <tblodt@icloud.com> | 2019-04-28 06:24:58 -0700 |
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committer | Christian Duerr <chrisduerr@users.noreply.github.com> | 2019-04-28 13:24:58 +0000 |
commit | dbd8538762ef8968a493e1bf996e8693479ca783 (patch) | |
tree | 32ac2a6a5e01238a272d4ba534551d2e42903c7a /src/cursor.rs | |
parent | 9c6d12ea2c863ba76015bdedc00db13b7307725a (diff) | |
download | r-alacritty-dbd8538762ef8968a493e1bf996e8693479ca783.tar.gz r-alacritty-dbd8538762ef8968a493e1bf996e8693479ca783.tar.bz2 r-alacritty-dbd8538762ef8968a493e1bf996e8693479ca783.zip |
Split alacritty into a separate crates
The crate containing the entry point is called alacritty, and the crate
containing everything else is called alacritty_terminal.
Diffstat (limited to 'src/cursor.rs')
-rw-r--r-- | src/cursor.rs | 99 |
1 files changed, 0 insertions, 99 deletions
diff --git a/src/cursor.rs b/src/cursor.rs deleted file mode 100644 index 196241a0..00000000 --- a/src/cursor.rs +++ /dev/null @@ -1,99 +0,0 @@ -// Copyright 2016 Joe Wilm, The Alacritty Project Contributors -// -// Licensed under the Apache License, Version 2.0 (the "License"); -// you may not use this file except in compliance with the License. -// You may obtain a copy of the License at -// -// http://www.apache.org/licenses/LICENSE-2.0 -// -// Unless required by applicable law or agreed to in writing, software -// distributed under the License is distributed on an "AS IS" BASIS, -// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. -// See the License for the specific language governing permissions and -// limitations under the License. - -//! Helpers for creating different cursor glyphs from font metrics - -use std::cmp; - -use font::{Metrics, RasterizedGlyph}; - -use crate::ansi::CursorStyle; - -/// Width/Height of the cursor relative to the font width -pub const CURSOR_WIDTH_PERCENTAGE: i32 = 15; - -pub fn get_cursor_glyph( - cursor: CursorStyle, - metrics: Metrics, - offset_x: i8, - offset_y: i8, - is_wide: bool, -) -> RasterizedGlyph { - // Calculate the cell metrics - let height = metrics.line_height as i32 + i32::from(offset_y); - let mut width = metrics.average_advance as i32 + i32::from(offset_x); - let line_width = cmp::max(width * CURSOR_WIDTH_PERCENTAGE / 100, 1); - - // Double the cursor width if it's above a double-width glyph - if is_wide { - width *= 2; - } - - match cursor { - CursorStyle::HollowBlock => get_box_cursor_glyph(height, width, line_width), - CursorStyle::Underline => get_underline_cursor_glyph(width, line_width), - CursorStyle::Beam => get_beam_cursor_glyph(height, line_width), - CursorStyle::Block => get_block_cursor_glyph(height, width), - CursorStyle::Hidden => RasterizedGlyph::default(), - } -} - -// Returns a custom underline cursor character -pub fn get_underline_cursor_glyph(width: i32, line_width: i32) -> RasterizedGlyph { - // Create a new rectangle, the height is relative to the font width - let buf = vec![255u8; (width * line_width * 3) as usize]; - - // Create a custom glyph with the rectangle data attached to it - RasterizedGlyph { c: ' ', top: line_width, left: 0, height: line_width, width, buf } -} - -// Returns a custom beam cursor character -pub fn get_beam_cursor_glyph(height: i32, line_width: i32) -> RasterizedGlyph { - // Create a new rectangle that is at least one pixel wide - let buf = vec![255u8; (line_width * height * 3) as usize]; - - // Create a custom glyph with the rectangle data attached to it - RasterizedGlyph { c: ' ', top: height, left: 0, height, width: line_width, buf } -} - -// Returns a custom box cursor character -pub fn get_box_cursor_glyph(height: i32, width: i32, line_width: i32) -> RasterizedGlyph { - // Create a new box outline rectangle - let mut buf = Vec::with_capacity((width * height * 3) as usize); - for y in 0..height { - for x in 0..width { - if y < line_width - || y >= height - line_width - || x < line_width - || x >= width - line_width - { - buf.append(&mut vec![255u8; 3]); - } else { - buf.append(&mut vec![0u8; 3]); - } - } - } - - // Create a custom glyph with the rectangle data attached to it - RasterizedGlyph { c: ' ', top: height, left: 0, height, width, buf } -} - -// Returns a custom block cursor character -pub fn get_block_cursor_glyph(height: i32, width: i32) -> RasterizedGlyph { - // Create a completely filled glyph - let buf = vec![255u8; (width * height * 3) as usize]; - - // Create a custom glyph with the rectangle data attached to it - RasterizedGlyph { c: ' ', top: height, left: 0, height, width, buf } -} |