161 lines
5.0 KiB
Rust
161 lines
5.0 KiB
Rust
mod context;
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mod itemize;
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pub use self::context::Context;
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pub use self::context::CellMetrics;
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use mode;
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use color;
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use sys::pango::*;
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use pango;
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use cairo;
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use cursor;
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use pangocairo::CairoContextExt;
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use ui_model;
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pub fn render(
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ctx: &cairo::Context,
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cursor: &cursor::Cursor,
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font_ctx: &context::Context,
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ui_model: &ui_model::UiModel,
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color_model: &color::ColorModel,
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mode: &mode::Mode,
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) {
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ctx.set_source_rgb(
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color_model.bg_color.0,
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color_model.bg_color.1,
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color_model.bg_color.2,
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);
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ctx.paint();
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let &CellMetrics {
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line_height,
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char_width,
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underline_position,
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underline_thickness,
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..
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} = font_ctx.cell_metrics();
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let mut line_y = 0.0;
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let ascent = font_ctx.ascent();
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let (cursor_row, cursor_col) = ui_model.get_cursor();
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for (row, line) in ui_model.model().iter().enumerate() {
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let mut line_x = 0.0;
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for col in 0..line.line.len() {
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let cell = &line.line[col];
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let (bg, fg) = color_model.cell_colors(cell);
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// draw cell
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if let Some(item) = line.item_line[col].as_ref() {
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if let Some(bg) = bg {
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ctx.set_source_rgb(bg.0, bg.1, bg.2);
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ctx.rectangle(
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line_x,
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line_y,
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char_width * line.item_len_from_idx(col) as f64,
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line_height,
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);
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ctx.fill();
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}
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if let Some(ref glyphs) = item.glyphs {
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ctx.move_to(line_x, line_y + ascent);
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ctx.set_source_rgb(fg.0, fg.1, fg.2);
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ctx.show_glyph_string(item.font(), glyphs);
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}
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} else if !line.is_binded_to_item(col) {
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let bg = color_model.cell_bg(cell);
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if let Some(bg) = bg {
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ctx.set_source_rgb(bg.0, bg.1, bg.2);
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ctx.rectangle(line_x, line_y, char_width, line_height);
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ctx.fill();
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}
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}
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if cell.attrs.underline || cell.attrs.undercurl {
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if cell.attrs.undercurl {
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// TODO: properly draw undercurl
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let sp = color_model.actual_cell_sp(cell);
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ctx.set_source_rgba(sp.0, sp.1, sp.2, 0.7);
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ctx.show_error_underline(
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line_x,
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line_y + underline_position,
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char_width,
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underline_thickness * 5.0,
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);
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//ctx.set_dash(&[4.0, 2.0], 0.0);
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//ctx.set_line_width(underline_thickness);
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//ctx.move_to(line_x, line_y + underline_position);
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//ctx.line_to(line_x + char_width, line_y + underline_position);
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//ctx.stroke();
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//ctx.set_dash(&[], 0.0);
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} else if cell.attrs.underline {
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ctx.set_source_rgb(fg.0, fg.1, fg.2);
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ctx.set_line_width(underline_thickness);
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ctx.move_to(line_x, line_y + underline_position);
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ctx.line_to(line_x + char_width, line_y + underline_position);
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ctx.stroke();
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}
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}
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if row == cursor_row && col == cursor_col {
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ctx.move_to(line_x, line_y);
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cursor.draw(
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ctx,
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font_ctx,
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mode,
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line_y,
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false, //TODO: double_width,
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color_model.actual_cell_bg(cell),
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);
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}
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line_x += char_width;
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}
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line_y += line_height;
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}
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}
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pub fn shape_dirty(
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ctx: &context::Context,
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ui_model: &mut ui_model::UiModel,
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color_model: &color::ColorModel,
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) {
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for line in ui_model.model_mut() {
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if line.dirty_line {
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let styled_line = ui_model::StyledLine::from(line, color_model);
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let items = ctx.itemize(&styled_line);
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line.merge(&styled_line, &items);
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for i in 0..line.line.len() {
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if line[i].dirty {
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if let Some(item) = line.get_item_mut(i) {
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let mut glyphs = pango::GlyphString::new();
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{
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let analysis = item.analysis();
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let (offset, length, _) = item.item.offset();
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pango_shape(
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&styled_line.line_str,
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offset,
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length,
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&analysis,
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&mut glyphs,
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);
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}
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item.set_glyphs(ctx, glyphs);
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}
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}
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line[i].dirty = false;
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}
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line.dirty_line = false;
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}
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}
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}
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