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ttf: add support for new functions in SDL2_ttf 2.20.0
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Signed-off-by: Lilis Iskandar <lilis@veand.co>
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@veeableful
veeableful committed Sep 2, 2024
1 parent b4de621 commit f9a6239
Showing 1 changed file with 220 additions and 3 deletions.
223 changes: 220 additions & 3 deletions ttf/sdl_ttf.go
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,82 @@ void Do_TTF_SetError(const char *str) {
TTF_SetError("%s", str);
}
#if !SDL_TTF_VERSION_ATLEAST(2,0,20)
typedef enum
{
TTF_DIRECTION_LTR = 0,
TTF_DIRECTION_RTL,
TTF_DIRECTION_TTB,
TTF_DIRECTION_BTT
} TTF_Direction;
#define TTF_WRAPPED_ALIGN_LEFT 0
#define TTF_WRAPPED_ALIGN_CENTER 1
#define TTF_WRAPPED_ALIGN_RIGHT 2
static inline int TTF_GetFontWrappedAlign(const TTF_Font *font)
{
return 0;
}
static inline void TTF_SetFontWrappedAlign(TTF_Font *font, int align)
{
// do nothing
}
static inline SDL_Surface * TTF_RenderText_LCD(TTF_Font *font, const char * text, SDL_Color fg, SDL_Color bg)
{
return NULL;
}
static inline SDL_Surface * TTF_RenderUTF8_LCD(TTF_Font *font, const char * text, SDL_Color fg, SDL_Color bg)
{
return NULL;
}
static inline SDL_Surface * TTF_RenderUNICODE_LCD(TTF_Font *font, const Uint16 * text, SDL_Color fg, SDL_Color bg)
{
return NULL;
}
static inline SDL_Surface * TTF_RenderText_LCD_Wrapped(TTF_Font *font, const char * text, SDL_Color fg, SDL_Color bg, Uint32 wrapLength)
{
return NULL;
}
static inline SDL_Surface * TTF_RenderUTF8_LCD_Wrapped(TTF_Font *font, const char * text, SDL_Color fg, SDL_Color bg, Uint32 wrapLength)
{
return NULL;
}
static inline SDL_Surface * TTF_RenderUNICODE_LCD_Wrapped(TTF_Font *font, const Uint16 * text, SDL_Color fg, SDL_Color bg, Uint32 wrapLength)
{
return NULL;
}
static inline SDL_Surface * TTF_RenderGlyph_LCD(TTF_Font *font, Uint16 ch, SDL_Color fg, SDL_Color bg)
{
return NULL;
}
static inline SDL_Surface * TTF_RenderGlyph32_LCD(TTF_Font *font, Uint32 ch, SDL_Color fg, SDL_Color bg)
{
return NULL;
}
static inline int TTF_SetFontDirection(TTF_Font *font, TTF_Direction direction)
{
return -1;
}
static inline int TTF_SetFontScriptName(TTF_Font *font, const char *script)
{
return -1;
}
#endif
#if SDL_TTF_VERSION_ATLEAST(2,0,18)
static inline void ByteSwappedUNICODE(int swapped)
{
Expand Down Expand Up @@ -54,6 +130,25 @@ type Font struct {
f *C.TTF_Font
}

// Font alignment
type Align int

const (
WRAPPED_ALIGN_LEFT Align = C.TTF_WRAPPED_ALIGN_LEFT
WRAPPED_ALIGN_CENTER Align = C.TTF_WRAPPED_ALIGN_CENTER
WRAPPED_ALIGN_RIGHT Align = C.TTF_WRAPPED_ALIGN_RIGHT
)

// Font direction
type Direction int

const (
DIRECTION_LTR Direction = C.TTF_DIRECTION_LTR
DIRECTION_RTL Direction = C.TTF_DIRECTION_RTL
DIRECTION_TTB Direction = C.TTF_DIRECTION_TTB
DIRECTION_BTT Direction = C.TTF_DIRECTION_BTT
)

// Init initializes the truetype font API. This must be called before using other functions in this library, except ttf.WasInit(). SDL does not have to be initialized before this call.
// (https://www.libsdl.org/projects/SDL_ttf/docs/SDL_ttf_8.html)
func Init() error {
Expand Down Expand Up @@ -352,9 +447,9 @@ func (f *Font) FaceFamilyName() string {
// FaceStyleName returns the current font face family's style name from the loaded font.
// (https://wiki.libsdl.org/SDL_ttf/TTF_FontFaceStyleName)
func (f *Font) FaceStyleName() string {
_fname := C.TTF_FontFaceStyleName(f.f)
fname := C.GoString(_fname)
return fname
_fname := C.TTF_FontFaceStyleName(f.f)
fname := C.GoString(_fname)
return fname
}

// GlyphMetrics contains glyph-specific rendering metrics.
Expand All @@ -375,3 +470,125 @@ func (f *Font) GlyphMetrics(ch rune) (*GlyphMetrics, error) {
}
return nil, GetError()
}

func (f *Font) GetWrappedAlign() Align {
return Align(C.TTF_GetFontWrappedAlign(f.f))
}

func (f *Font) SetWrappedAlign(align Align) {
C.TTF_SetFontWrappedAlign(f.f, C.int(align))
}

func (f *Font) RenderTextLCD(text string, fg, bg sdl.Color) (*sdl.Surface, error) {
_text := C.CString(text)
defer C.free(unsafe.Pointer(_text))
_fg := C.SDL_Color{C.Uint8(fg.R), C.Uint8(fg.G), C.Uint8(fg.B), C.Uint8(fg.A)}
_bg := C.SDL_Color{C.Uint8(bg.R), C.Uint8(bg.G), C.Uint8(bg.B), C.Uint8(bg.A)}
surface := (*sdl.Surface)(unsafe.Pointer(C.TTF_RenderText_LCD(f.f, _text, _fg, _bg)))
if surface == nil {
return nil, GetError()
}
return surface, nil
}

func (f *Font) RenderUTF8LCD(text string, fg, bg sdl.Color) (*sdl.Surface, error) {
_text := C.CString(text)
defer C.free(unsafe.Pointer(_text))
_fg := C.SDL_Color{C.Uint8(fg.R), C.Uint8(fg.G), C.Uint8(fg.B), C.Uint8(fg.A)}
_bg := C.SDL_Color{C.Uint8(bg.R), C.Uint8(bg.G), C.Uint8(bg.B), C.Uint8(bg.A)}
surface := (*sdl.Surface)(unsafe.Pointer(C.TTF_RenderUTF8_LCD(f.f, _text, _fg, _bg)))
if surface == nil {
return nil, GetError()
}
return surface, nil
}

func (f *Font) RenderUNICODELCD(text []uint16, fg, bg sdl.Color) (*sdl.Surface, error) {
_text := (*C.Uint16)(&text[0])
_fg := C.SDL_Color{C.Uint8(fg.R), C.Uint8(fg.G), C.Uint8(fg.B), C.Uint8(fg.A)}
_bg := C.SDL_Color{C.Uint8(bg.R), C.Uint8(bg.G), C.Uint8(bg.B), C.Uint8(bg.A)}
surface := (*sdl.Surface)(unsafe.Pointer(C.TTF_RenderUNICODE_LCD(f.f, _text, _fg, _bg)))
if surface == nil {
return nil, GetError()
}
return surface, nil
}

func (f *Font) RenderTextLCDWrapped(text string, fg, bg sdl.Color, wrapLength uint32) (*sdl.Surface, error) {
_text := C.CString(text)
defer C.free(unsafe.Pointer(_text))
_fg := C.SDL_Color{C.Uint8(fg.R), C.Uint8(fg.G), C.Uint8(fg.B), C.Uint8(fg.A)}
_bg := C.SDL_Color{C.Uint8(bg.R), C.Uint8(bg.G), C.Uint8(bg.B), C.Uint8(bg.A)}
_wrapLength := C.Uint32(wrapLength)
surface := (*sdl.Surface)(unsafe.Pointer(C.TTF_RenderText_LCD_Wrapped(f.f, _text, _fg, _bg, _wrapLength)))
if surface == nil {
return nil, GetError()
}
return surface, nil
}

func (f *Font) RenderUTF8LCDWrapped(text string, fg, bg sdl.Color, wrapLength uint32) (*sdl.Surface, error) {
_text := C.CString(text)
defer C.free(unsafe.Pointer(_text))
_fg := C.SDL_Color{C.Uint8(fg.R), C.Uint8(fg.G), C.Uint8(fg.B), C.Uint8(fg.A)}
_bg := C.SDL_Color{C.Uint8(bg.R), C.Uint8(bg.G), C.Uint8(bg.B), C.Uint8(bg.A)}
_wrapLength := C.Uint32(wrapLength)
surface := (*sdl.Surface)(unsafe.Pointer(C.TTF_RenderUTF8_LCD_Wrapped(f.f, _text, _fg, _bg, _wrapLength)))
if surface == nil {
return nil, GetError()
}
return surface, nil
}

func (f *Font) RenderUNICODELCDWrapped(text []uint16, fg, bg sdl.Color, wrapLength uint32) (*sdl.Surface, error) {
_text := (*C.Uint16)(&text[0])
_fg := C.SDL_Color{C.Uint8(fg.R), C.Uint8(fg.G), C.Uint8(fg.B), C.Uint8(fg.A)}
_bg := C.SDL_Color{C.Uint8(bg.R), C.Uint8(bg.G), C.Uint8(bg.B), C.Uint8(bg.A)}
_wrapLength := C.Uint32(wrapLength)
surface := (*sdl.Surface)(unsafe.Pointer(C.TTF_RenderUNICODE_LCD_Wrapped(f.f, _text, _fg, _bg, _wrapLength)))
if surface == nil {
return nil, GetError()
}
return surface, nil
}

func (f *Font) RenderGlyphLCD(ch uint16, fg, bg sdl.Color) (*sdl.Surface, error) {
_ch := C.Uint16(ch)
_fg := C.SDL_Color{C.Uint8(fg.R), C.Uint8(fg.G), C.Uint8(fg.B), C.Uint8(fg.A)}
_bg := C.SDL_Color{C.Uint8(bg.R), C.Uint8(bg.G), C.Uint8(bg.B), C.Uint8(bg.A)}
surface := (*sdl.Surface)(unsafe.Pointer(C.TTF_RenderGlyph_LCD(f.f, _ch, _fg, _bg)))
if surface == nil {
return nil, GetError()
}
return surface, nil
}

func (f *Font) RenderGlyph32LCD(ch uint32, fg, bg sdl.Color) (*sdl.Surface, error) {
_ch := C.Uint32(ch)
_fg := C.SDL_Color{C.Uint8(fg.R), C.Uint8(fg.G), C.Uint8(fg.B), C.Uint8(fg.A)}
_bg := C.SDL_Color{C.Uint8(bg.R), C.Uint8(bg.G), C.Uint8(bg.B), C.Uint8(bg.A)}
surface := (*sdl.Surface)(unsafe.Pointer(C.TTF_RenderGlyph32_LCD(f.f, _ch, _fg, _bg)))
if surface == nil {
return nil, GetError()
}
return surface, nil
}

func (f *Font) SetDirection(direction Direction) error {
_direction := C.TTF_Direction(direction)
ret := C.TTF_SetFontDirection(f.f, _direction)
if ret != 0 {
return GetError()
}
return nil
}

func (f *Font) SetScriptName(script string) error {
_script := C.CString(script)
defer C.free(unsafe.Pointer(_script))
ret := C.TTF_SetFontScriptName(f.f, _script)
if ret != 0 {
return GetError()
}
return nil
}

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