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pkg/macos: implement CTRun

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This commit is contained in:
Mitchell Hashimoto
2023-12-11 09:23:40 -08:00
parent 554d2d0185
commit ff68c56268
3 changed files with 67 additions and 0 deletions
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1
pkg/macos/text.zig
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@ -5,6 +5,7 @@ pub usingnamespace @import("text/font_manager.zig");
pub usingnamespace @import("text/frame.zig"); pub usingnamespace @import("text/frame.zig");
pub usingnamespace @import("text/framesetter.zig"); pub usingnamespace @import("text/framesetter.zig");
pub usingnamespace @import("text/line.zig"); pub usingnamespace @import("text/line.zig");
pub usingnamespace @import("text/run.zig");
pub usingnamespace @import("text/stylized_strings.zig"); pub usingnamespace @import("text/stylized_strings.zig");
test { test {

4
pkg/macos/text/line.zig
View File

@ -49,6 +49,10 @@ pub const Line = opaque {
leading, leading,
); );
} }
pub fn getGlyphRuns(self: *Line) *foundation.Array {
return @ptrCast(c.CTLineGetGlyphRuns(@ptrCast(self)));
}
}; };
pub const LineBoundsOptions = packed struct { pub const LineBoundsOptions = packed struct {

62
pkg/macos/text/run.zig Normal file
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@ -0,0 +1,62 @@
const std = @import("std");
const assert = std.debug.assert;
const Allocator = std.mem.Allocator;
const foundation = @import("../foundation.zig");
const graphics = @import("../graphics.zig");
const text = @import("../text.zig");
const c = @import("c.zig");
pub const Run = opaque {
pub fn release(self: *Run) void {
foundation.CFRelease(self);
}
pub fn getGlyphCount(self: *Run) usize {
return @intCast(c.CTRunGetGlyphCount(@ptrCast(self)));
}
pub fn getGlyphsPtr(self: *Run) []const graphics.Glyph {
const len = self.getGlyphCount();
if (len == 0) return &.{};
const ptr = c.CTRunGetGlyphsPtr(@ptrCast(self)) orelse &.{};
return ptr[0..len];
}
pub fn getGlyphs(self: *Run, alloc: Allocator) ![]const graphics.Glyph {
const len = self.getGlyphCount();
const ptr = try alloc.alloc(graphics.Glyph, len);
errdefer alloc.free(ptr);
c.CTRunGetGlyphs(@ptrCast(self), .{ .location = 0, .len = 0 }, ptr);
return ptr;
}
pub fn getPositionsPtr(self: *Run) []const graphics.Point {
const len = self.getGlyphCount();
if (len == 0) return &.{};
const ptr = c.CTRunGetPositionsPtr(@ptrCast(self)) orelse &.{};
return ptr[0..len];
}
pub fn getPositions(self: *Run, alloc: Allocator) ![]const graphics.Point {
const len = self.getGlyphCount();
const ptr = try alloc.alloc(graphics.Point, len);
errdefer alloc.free(ptr);
c.CTRunGetPositions(@ptrCast(self), .{ .location = 0, .len = 0 }, ptr);
return ptr;
}
pub fn getAdvancesPtr(self: *Run) []const graphics.Size {
const len = self.getGlyphCount();
if (len == 0) return &.{};
const ptr = c.CTRunGetAdvancesPtr(@ptrCast(self)) orelse &.{};
return ptr[0..len];
}
pub fn getAdvances(self: *Run, alloc: Allocator) ![]const graphics.Size {
const len = self.getGlyphCount();
const ptr = try alloc.alloc(graphics.Size, len);
errdefer alloc.free(ptr);
c.CTRunGetAdvances(@ptrCast(self), .{ .location = 0, .len = 0 }, ptr);
return ptr;
}
};