38 lines
1.4 KiB
Zig
38 lines
1.4 KiB
Zig
const std = @import("std");
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const Object = @import("../Object.zig");
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const Property = @import("../Property.zig").Property;
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const PropertyData = @import("../Property.zig").Data;
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const Rect_f = @import("../basic_models.zig").Rect_f;
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const shape_mod = @import("shape.zig");
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/// Свойства фигуры по умолчанию.
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pub const default_shape_properties = [_]Property{
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.{ .data = .{ .end_point = .{ .x = 100, .y = 0 } } },
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};
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/// Теги обязательных свойств.
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pub fn getRequiredTags() []const std.meta.Tag(PropertyData) {
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return &([_]std.meta.Tag(PropertyData){std.meta.activeTag(default_shape_properties[0].data)});
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}
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/// Добавляет к объекту свойства по умолчанию для линии.
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pub fn appendDefaultShapeProperties(allocator: std.mem.Allocator, obj: *Object) !void {
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for (default_shape_properties) |prop| try obj.properties.append(allocator, prop);
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}
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/// Локальные границы: от (0,0) до end_point.
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pub fn getLocalBounds(obj: *const Object) !Rect_f {
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try shape_mod.ensure(obj, .line);
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const ep = obj.getProperty(.end_point).?;
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const min_x = @min(0, ep.end_point.x);
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const max_x = @max(0, ep.end_point.x);
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const min_y = @min(0, ep.end_point.y);
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const max_y = @max(0, ep.end_point.y);
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return .{
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.x = min_x,
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.y = min_y,
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.w = max_x - min_x,
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.h = max_y - min_y,
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};
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}
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