font table interpreter: moved d stuff responsible for font table into d2fileformats/d2font

d2common/d2fileformats/d2font/font.go

@@ -1,7 +1,8 @@
-package d2asset
+package d2font
 
 import (
 	"encoding/binary"
+	"fmt"
 	"image/color"
 	"strings"
 
@@ -23,6 +24,23 @@ type Font struct {
 	color  color.Color
 }
 
+// Load loads a new font from byte slice
+func Load(data []byte, sheet d2interface.Animation) (*Font, error) {
+	if string(data[:5]) != "Woo!\x01" {
+		return nil, fmt.Errorf("invalid font table format")
+	}
+
+	font := &Font{
+		table: data,
+		sheet: sheet,
+		color: color.White,
+	}
+
+	font.initGlyphs()
+
+	return font, nil
+}
+
 // SetColor sets the fonts color
 func (f *Font) SetColor(c color.Color) {
 	f.color = c
@@ -30,9 +48,6 @@ func (f *Font) SetColor(c color.Color) {
 
 // GetTextMetrics returns the dimensions of the Font element in pixels
 func (f *Font) GetTextMetrics(text string) (width, height int) {
-	if f.glyphs == nil {
-		f.initGlyphs()
-	}
 
 	var (
 		lineWidth  int

d2core/d2asset/asset_manager.go

@@ -2,7 +2,6 @@ package d2asset
 
 import (
 	"fmt"
-	"image/color"
 	"io"
 	"io/ioutil"
 	"path/filepath"
@@ -19,6 +18,7 @@ import (
 
 	"github.com/OpenDiablo2/OpenDiablo2/d2core/d2records"
 
+	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2fileformats/d2font"
 	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2fileformats/d2txt"
 
 	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2enum"
@@ -209,11 +209,11 @@ func (am *AssetManager) LoadComposite(baseType d2enum.ObjectType, token, palette
 }
 
 // LoadFont loads a font the resource files
-func (am *AssetManager) LoadFont(tablePath, spritePath, palettePath string) (*Font, error) {
+func (am *AssetManager) LoadFont(tablePath, spritePath, palettePath string) (*d2font.Font, error) {
 	cachePath := fmt.Sprintf("%s;%s;%s", tablePath, spritePath, palettePath)
 
 	if cached, found := am.fonts.Retrieve(cachePath); found {
-		return cached.(*Font), nil
+		return cached.(*d2font.Font), nil
 	}
 
 	sheet, err := am.LoadAnimation(spritePath, palettePath)
@@ -226,16 +226,9 @@ func (am *AssetManager) LoadFont(tablePath, spritePath, palettePath string) (*Fo
 		return nil, err
 	}
 
-	if string(tableData[:5]) != "Woo!\x01" {
-		return nil, fmt.Errorf("invalid font table format: %s", tablePath)
-	}
-
-	am.Debugf(fmtLoadFont, tablePath, spritePath, palettePath)
-
-	font := &Font{
-		table: tableData,
-		sheet: sheet,
-		color: color.White,
+	font, err := d2font.Load(tableData, sheet)
+	if err != nil {
+		return nil, fmt.Errorf("error while loading font table %s: %v", tablePath, err)
 	}
 
 	err = am.fonts.Insert(cachePath, font, defaultCacheEntryWeight)

d2core/d2gui/label.go

@@ -4,8 +4,8 @@ import (
 	"image/color"
 	"time"
 
+	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2fileformats/d2font"
 	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
-	"github.com/OpenDiablo2/OpenDiablo2/d2core/d2asset"
 )
 
 // Constants defining the main shades of basic colors
@@ -25,7 +25,7 @@ type Label struct {
 
 	renderer    d2interface.Renderer
 	text        string
-	font        *d2asset.Font
+	font        *d2font.Font
 	surface     d2interface.Surface
 	color       color.RGBA
 	hoverColor  color.RGBA
@@ -35,7 +35,7 @@ type Label struct {
 	blinkTimer  time.Time
 }
 
-func createLabel(renderer d2interface.Renderer, text string, font *d2asset.Font, col color.RGBA) (*Label, error) {
+func createLabel(renderer d2interface.Renderer, text string, font *d2font.Font, col color.RGBA) (*Label, error) {
 	label := &Label{
 		font:       font,
 		renderer:   renderer,

d2core/d2gui/layout.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"image/color"
 
+	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2fileformats/d2font"
 	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
 	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2math"
 	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2util"
@@ -532,7 +533,7 @@ func (l *Layout) createButton(renderer d2interface.Renderer, text string,
 	return button, nil
 }
 
-func (l *Layout) loadFont(fontStyle FontStyle) (*d2asset.Font, error) {
+func (l *Layout) loadFont(fontStyle FontStyle) (*d2font.Font, error) {
 	config := getFontStyleConfig(fontStyle)
 	if config == nil {
 		return nil, errors.New("invalid font style")

d2core/d2ui/label.go

@@ -5,7 +5,7 @@ import (
 	"regexp"
 	"strings"
 
-	"github.com/OpenDiablo2/OpenDiablo2/d2core/d2asset"
+	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2fileformats/d2font"
 
 	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
 	"github.com/OpenDiablo2/OpenDiablo2/d2common/d2util"
@@ -19,7 +19,7 @@ type Label struct {
 	*BaseWidget
 	text            string
 	Alignment       HorizontalAlign
-	font            *d2asset.Font
+	font            *d2font.Font
 	Color           map[int]color.Color
 	backgroundColor color.Color