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renderer/opengl: handle wide preedit

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This commit is contained in:
Mitchell Hashimoto
2023-11-10 17:30:14 -08:00
parent ce4541dd61
commit 5c8c4bb06e
2 changed files with 16 additions and 6 deletions
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1
src/renderer/Metal.zig
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@ -1215,6 +1215,7 @@ fn rebuildCells(
var cell: mtl_shaders.Cell = cursor_cell orelse
(real_cursor_cell orelse break :preedit).*;
cell.color = .{ 0, 0, 0, 255 };
cell.cell_width = if (preedit_v.wide) 2 else 1;
// If preedit rendering succeeded then we don't want to
// re-render the underlying cell fg

21
src/renderer/OpenGL.zig
View File

@ -817,7 +817,7 @@ pub fn rebuildCells(
// a cursor cell then we invert the colors on that and add it in so
// that we can always see it.
if (cursor_style_) |cursor_style| {
const real_cursor_cell = self.addCursor(screen, cursor_style);
const real_cursor_cell = self.addCursor(screen, cursor_style, preedit);
// If we have a preedit, we try to render the preedit text on top
// of the cursor.
@ -832,6 +832,7 @@ pub fn rebuildCells(
cell.fg_g = 0;
cell.fg_b = 0;
cell.fg_a = 255;
cell.grid_width = if (preedit_v.wide) 2 else 1;
// If preedit rendering succeeded then we don't want to
// re-render the underlying cell fg
@ -871,10 +872,18 @@ fn addCursor(
self: *OpenGL,
screen: *terminal.Screen,
cursor_style: renderer.CursorStyle,
preedit: ?renderer.State.Preedit,
) ?*const GPUCell {
// Add the cursor. We render the cursor over the wide character if
// we're on the wide characer tail.
const cell, const x = cell: {
const wide, const x = cell: {
// If we have preedit text, our width is based on that.
if (preedit) |p| {
if (p.codepoint > 0) {
break :cell .{ p.wide, screen.cursor.x };
}
}
// The cursor goes over the screen cursor position.
const cell = screen.getCell(
.active,
@ -882,7 +891,7 @@ fn addCursor(
screen.cursor.x,
);
if (!cell.attrs.wide_spacer_tail or screen.cursor.x == 0)
break :cell .{ cell, screen.cursor.x };
break :cell .{ cell.attrs.wide, screen.cursor.x };
// If we're part of a wide character, we move the cursor back to
// the actual character.
@ -890,7 +899,7 @@ fn addCursor(
.active,
screen.cursor.y,
screen.cursor.x - 1,
), screen.cursor.x - 1 };
).attrs.wide, screen.cursor.x - 1 };
};
const color = self.cursor_color orelse self.foreground_color;
@ -910,7 +919,7 @@ fn addCursor(
self.alloc,
font.sprite_index,
@intFromEnum(sprite),
.{ .cell_width = if (cell.attrs.wide) 2 else 1 },
.{ .cell_width = if (wide) 2 else 1 },
) catch |err| {
log.warn("error rendering cursor glyph err={}", .{err});
return null;
@ -920,7 +929,7 @@ fn addCursor(
.mode = .fg,
.grid_col = @intCast(x),
.grid_row = @intCast(screen.cursor.y),
.grid_width = if (cell.attrs.wide) 2 else 1,
.grid_width = if (wide) 2 else 1,
.fg_r = color.r,
.fg_g = color.g,
.fg_b = color.b,