// Copyright 2012. All rights reserved.

// Use of this source code is governed by a BSD-style

// license that can be found in the LICENSE file.

////////////////////////////////////////////////////////////

//

// SFML - Simple and Fast Multimedia Library

// Copyright (C) 2007-2012 Laurent Gomila (laurent.gom@gmail.com)

//

// This software is provided 'as-is', without any express or implied warranty.

// In no event will the authors be held liable for any damages arising from the use of this software.

//

// Permission is granted to anyone to use this software for any purpose,

// including commercial applications, and to alter it and redistribute it freely,

// subject to the following restrictions:

//

// 1. The origin of this software must not be misrepresented;

// you must not claim that you wrote the original software.

// If you use this software in a product, an acknowledgment

// in the product documentation would be appreciated but is not required.

//

// 2. Altered source versions must be plainly marked as such,

// and must not be misrepresented as being the original software.

//

// 3. This notice may not be removed or altered from any source distribution.

//

////////////////////////////////////////////////////////////

package sfml

// #cgo LDFLAGS:-lcsfml-graphics -ljpeg

// #include <SFML/Graphics/Text.h>

// #include <SFML/Graphics/Export.h>

// #include <SFML/Graphics/Color.h>

// #include <SFML/Graphics/Rect.h>

// #include <SFML/Graphics/Types.h>

// #include <SFML/System/Vector2.h>

// #include <stddef.h>

// #include <stdio.h>

// extern int _UnicodeStringSize(sfUint32 *s) {

// int i = 0;

// for (i = 0; s[i] != 0; i++)

// ;

// return i;

// }

import "C"

import (

"errors"

"unsafe"

"unicode/utf8"

)

type Text struct {

Cref *C.sfText

}

// sfText styles

// Create a new text

// \return A new sfText object, or NULL if it failed

// sfText* sfText_create(void);

func NewText() (Text, error) {

}

// Copy an existing text

// \param text Text to copy

// \return Copied object

// sfText* sfText_copy(sfText* text);

func (self Text) Copy() Text {

return Text{C.sfText_copy(self.Cref)}

}

// Destroy an existing text

// \param text Text to delete

// void sfText_destroy(sfText* text);

func (self Text) Destroy() {

C.sfText_destroy(self.Cref)

}

// Set the position of a text

// This function completely overwrites the previous position.

// See sfText_move to apply an offset based on the previous position instead.

// The default position of a text Text object is (0, 0).

// \param text Text object

// \param position New position

// void sfText_setPosition(sfText* text, sfVector2f position);

func (self Text) SetPosition(x, y float32) {

v := C.sfVector2f{C.float(x), C.float(y)}

C.sfText_setPosition(self.Cref, v)

}

// Set the orientation of a text

// This function completely overwrites the previous rotation.

// See sfText_rotate to add an angle based on the previous rotation instead.

// The default rotation of a text Text object is 0.

// \param text Text object

// \param angle New rotation, in degrees

// void sfText_setRotation(sfText* text, float angle);

func (self Text) SetRotation(angle float32) {

C.sfText_setRotation(self.Cref, C.float(angle))

}

// Set the scale factors of a text

// This function completely overwrites the previous scale.

// See sfText_scale to add a factor based on the previous scale instead.

// The default scale of a text Text object is (1, 1).

// \param text Text object

// \param scale New scale factors

// void sfText_setScale(sfText* text, sfVector2f scale);

func (self Text) SetScale(x, y float32) {

v := C.sfVector2f{C.float(x), C.float(y)}

C.sfText_setScale(self.Cref, v)

}

// Set the local origin of a text

// The origin of an object defines the center point for

// all transformations (position, scale, rotation).

// The coordinates of this point must be relative to the

// top-left corner of the object, and ignore all

// transformations (position, scale, rotation).

// The default origin of a text object is (0, 0).

// \param text Text object

// \param origin New origin

// void sfText_setOrigin(sfText* text, sfVector2f origin);

func (self Text) SetOrigin(x, y float32) {

v := C.sfVector2f{C.float(x), C.float(y)}

C.sfText_setOrigin(self.Cref, v)

}

// Get the position of a text

// \param text Text object

// \return Current position

// sfVector2f sfText_getPosition(const sfText* text);

func (self Text) Position(x, y float32) (float32, float32) {

v := C.sfText_getPosition(self.Cref)

return float32(v.x), float32(v.y)

}

// Get the orientation of a text

// The rotation is always in the range [0, 360].

// \param text Text object

// \return Current rotation, in degrees

// float sfText_getRotation(const sfText* text);

func (self Text) Rotation() float32 {

return float32(C.sfText_getRotation(self.Cref))

}

// Get the current scale of a text

// \param text Text object

// \return Current scale factors

// sfVector2f sfText_getScale(const sfText* text);

func (self Text) GetScale() (x, y float32) {

v := C.sfText_getScale(self.Cref)

return float32(v.x), float32(v.y)

}

// Get the local origin of a text

// \param text Text object

// \return Current origin

// sfVector2f sfText_getOrigin(const sfText* text);

func (self Text) Origin() (x, y float32) {

v := C.sfText_getOrigin(self.Cref)

return float32(v.x), float32(v.y)

}

// Move a text by a given offset

// This function adds to the current position of the object,

// unlike sfText_setPosition which overwrites it.

// \param text Text object

// \param offset Offset

// void sfText_move(sfText* text, sfVector2f offset);

func (self Text) Move(x, y float32) {

v := C.sfVector2f{C.float(x), C.float(y)}

C.sfText_move(self.Cref, v)

}

// Rotate a text

// This function adds to the current rotation of the object,

// unlike sfText_setRotation which overwrites it.

// \param text Text object

// \param angle Angle of rotation, in degrees

// void sfText_rotate(sfText* text, float angle);

func (self Text) Rotate(angle float32) {

C.sfText_rotate(self.Cref, C.float(angle))

}

// Scale a text

// This function multiplies the current scale of the object,

// unlike sfText_setScale which overwrites it.

// \param text Text object

// \param factors Scale factors

// void sfText_scale(sfText* text, sfVector2f factors);

func (self Text) Scale(x, y float32) {

v := C.sfVector2f{C.float(x), C.float(y)}

C.sfText_scale(self.Cref, v)

}

// Get the combined transform of a text

// \param text Text object

// \return Transform combining the position/rotation/scale/origin of the object

// const sfTransform* sfText_getTransform(const sfText* text);

func (self Text) Transform() Transform {

t := C.sfText_getTransform(self.Cref)

return Transform{&t}

}

// Get the inverse of the combined transform of a text

// \param text Text object

// \return Inverse of the combined transformations applied to the object

// const sfTransform* sfText_getInverseTransform(const sfText* text);

func (self Text) InverseTransform() Transform {

t := C.sfText_getInverseTransform(self.Cref)

return Transform{&t}

}

// Set the string of a text (from an ANSI string)

// A text's string is empty by default.

// \param text Text object

// \param string New string

// void sfText_setString(sfText* text, const char* string);

func (self Text) SetString(s string) {

C.sfText_setString(self.Cref, C.CString(s))

}

// Set the string of a text (from a unicode string)

// \param text Text object

// \param string New string

// void sfText_setUnicodeString(sfText* text, const sfUint32* string);

func (self Text) SetUnicodeString(s string) {

}

// Set the font of a text

// The \a font argument refers to a texture that must

// exist as long as the text uses it. Indeed, the text

// doesn't store its own copy of the font, but rather keeps

// a pointer to the one that you passed to this function.

// If the font is destroyed and the text tries to

// use it, the behaviour is undefined.

// Texts have a valid font by default, which the built-in

// sfFont_getDefaultFont().

// \param text Text object

// \param font New font

// void sfText_setFont(sfText* text, const sfFont* font);

func (self Text) SetFont(font Font) {

C.sfText_setFont(self.Cref, font.Cref)

}

// Set the character size of a text

// The default size is 30.

// \param text Text object

// \param size New character size, in pixels

// void sfText_setCharacterSize(sfText* text, unsigned int size);

func (self Text) SetCharacterSize(size int) {

C.sfText_setCharacterSize(self.Cref, C.uint(size))

}

// Set the style of a text

// You can pass a combination of one or more styles, for

// example sfTextBold | sfTextItalic.

// The default style is sfTextRegular.

// \param text Text object

// \param style New style

// void sfText_setStyle(sfText* text, sfUint32 style);

func (self Text) SetStyle(style uint32) {

C.sfText_setStyle(self.Cref, C.sfUint32(style))

}

// Set the global color of a text

// By default, the text's color is opaque white.

// \param text Text object

// \param color New color of the text

// void sfText_setColor(sfText* text, sfColor color);

func (self Text) SetColor(color Color) {

C.sfText_setColor(self.Cref, color.Cref)

}

// Get the text of a text (returns an ANSI string)

// \param text Text object

// \return String an a locale-dependant ANSI string

// const char* sfText_getString(const sfText* text);

func (self Text) String() string {

return C.GoString(C.sfText_getString(self.Cref))

}

// Get the string of a text (returns a unicode string)

// \param text Text object

// \return String as UTF-32

// const sfUint32* sfText_getUnicodeString(const sfText* text);

func (self Text) UnicodeString() string {

}

// Get the font used by a text

// \param text Text object

// \return Pointer to the font

// const sfFont* sfText_getFont(const sfText* text);

func (self Text) Font() Font {

return Font{C.sfText_getFont(self.Cref)}

}

// Get the size of the characters of a text

// \param text Text object

// \return Size of the characters

// unsigned int sfText_getCharacterSize(const sfText* text);

func (self Text) CharacterSize() uint {

return uint(C.sfText_getCharacterSize(self.Cref))

}

// Get the style of a text

// \param text Text object

// \return Current string style (see sfTextStyle enum)

// sfUint32 sfText_getStyle(const sfText* text);

func (self Text) Style() uint {

return uint(C.sfText_getStyle(self.Cref))

}

// Get the global color of a text

// \param text Text object

// \return Global color of the text

// sfColor sfText_getColor(const sfText* text);

func (self Text) Color() Color {

return Color{C.sfText_getColor(self.Cref)}

}

// Return the position of the \a index-th character in a text

// This function computes the visual position of a character

// from its index in the string. The returned position is

// in global coordinates (translation, rotation, scale and

// origin are applied).

// If \a index is out of range, the position of the end of

// the string is returned.

// \param text Text object

// \param index Index of the character

// \return Position of the character

// sfVector2f sfText_findCharacterPos(const sfText* text, size_t index);

func (self Text) FindCharacterPos(index uint) Vector2f {

return Vector2f{C.sfText_findCharacterPos(self.Cref, C.size_t(index))}

}

// Get the local bounding rectangle of a text

// The returned rectangle is in local coordinates, which means

// that it ignores the transformations (translation, rotation,

// scale, ...) that are applied to the entity.

// In other words, this function returns the bounds of the

// entity in the entity's coordinate system.

// \param text Text object

// \return Local bounding rectangle of the entity

// sfFloatRect sfText_getLocalBounds(const sfText* text);

func (self Text) LocalBounds() FloatRect {

r := C.sfText_getLocalBounds(self.Cref)

return FloatRect{&r}

}

// Get the global bounding rectangle of a text

// The returned rectangle is in global coordinates, which means

// that it takes in account the transformations (translation,

// rotation, scale, ...) that are applied to the entity.

// In other words, this function returns the bounds of the

// text in the global 2D world's coordinate system.

// \param text Text object

// \return Global bounding rectangle of the entity

// sfFloatRect sfText_getGlobalBounds(const sfText* text);

func (self Text) GlobalBounds() FloatRect {

r := C.sfText_getGlobalBounds(self.Cref)

return FloatRect{&r}

}