зеркало из https://github.com/golang/image.git
66 строки
1.5 KiB
Go
66 строки
1.5 KiB
Go
// Copyright 2016 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
package font
|
|
|
|
import (
|
|
"image"
|
|
"strings"
|
|
"testing"
|
|
|
|
"golang.org/x/image/math/fixed"
|
|
)
|
|
|
|
const toyAdvance = fixed.Int26_6(10 << 6)
|
|
|
|
type toyFace struct{}
|
|
|
|
func (toyFace) Close() error {
|
|
return nil
|
|
}
|
|
|
|
func (toyFace) Glyph(dot fixed.Point26_6, r rune) (image.Rectangle, image.Image, image.Point, fixed.Int26_6, bool) {
|
|
panic("unimplemented")
|
|
}
|
|
|
|
func (toyFace) GlyphBounds(r rune) (fixed.Rectangle26_6, fixed.Int26_6, bool) {
|
|
return fixed.Rectangle26_6{
|
|
Min: fixed.P(2, 0),
|
|
Max: fixed.P(6, 1),
|
|
}, toyAdvance, true
|
|
}
|
|
|
|
func (toyFace) GlyphAdvance(r rune) (fixed.Int26_6, bool) {
|
|
return toyAdvance, true
|
|
}
|
|
|
|
func (toyFace) Kern(r0, r1 rune) fixed.Int26_6 {
|
|
return 0
|
|
}
|
|
|
|
func (toyFace) Metrics() Metrics {
|
|
return Metrics{}
|
|
}
|
|
|
|
func TestBound(t *testing.T) {
|
|
wantBounds := []fixed.Rectangle26_6{
|
|
{Min: fixed.P(0, 0), Max: fixed.P(0, 0)},
|
|
{Min: fixed.P(2, 0), Max: fixed.P(6, 1)},
|
|
{Min: fixed.P(2, 0), Max: fixed.P(16, 1)},
|
|
{Min: fixed.P(2, 0), Max: fixed.P(26, 1)},
|
|
}
|
|
|
|
for i, wantBound := range wantBounds {
|
|
s := strings.Repeat("x", i)
|
|
gotBound, gotAdvance := BoundString(toyFace{}, s)
|
|
if gotBound != wantBound {
|
|
t.Errorf("i=%d: bound: got %v, want %v", i, gotBound, wantBound)
|
|
}
|
|
wantAdvance := toyAdvance * fixed.Int26_6(i)
|
|
if gotAdvance != wantAdvance {
|
|
t.Errorf("i=%d: advance: got %v, want %v", i, gotAdvance, wantAdvance)
|
|
}
|
|
}
|
|
}
|