libSDL2pp/SDL2pp/Font.cc

/*
  libSDL2pp - C++11 bindings/wrapper for SDL2
  Copyright (C) 2014 Dmitry Marakasov <amdmi3@amdmi3.ru>

  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.
*/

#include <SDL2/SDL_ttf.h>

#include <SDL2pp/Font.hh>
#include <SDL2pp/RWops.hh>
#include <SDL2pp/Exception.hh>

namespace SDL2pp {

Font::Font(const std::string& file, int ptsize, long index) {
	if ((font_ = TTF_OpenFontIndex(file.c_str(), ptsize, index)) == nullptr)
		throw Exception("TTF_OpenFontIndex failed");
}

Font::Font(RWops& rwops, int ptsize, long index) {
	if ((font_ = TTF_OpenFontIndexRW(rwops.Get(), 0, ptsize, index)) == nullptr)
		throw Exception("TTF_OpenFontIndexRW failed");
}

Font::~Font() {
	if (font_ != nullptr)
		TTF_CloseFont(font_);
}

Font::Font(Font&& other) noexcept : font_(other.font_) {
	other.font_ = nullptr;
}

Font& Font::operator=(Font&& other) noexcept {
	if (&other == this)
		return *this;
	if (font_ != nullptr)
		TTF_CloseFont(font_);
	font_ = other.font_;
	other.font_ = nullptr;
	return *this;
}

TTF_Font* Font::Get() const {
	return font_;
}

int Font::GetStyle() const {
	return TTF_GetFontStyle(font_);
}

void Font::SetStyle(int style) {
	TTF_SetFontStyle(font_, style);
}

int Font::GetOutline() const {
	return TTF_GetFontOutline(font_);
}

void Font::SetOutline(int outline) {
	TTF_SetFontOutline(font_, outline);
}

int Font::GetHinting() const {
	return TTF_GetFontHinting(font_);
}

void Font::SetHinting(int hinting) {
	TTF_SetFontHinting(font_, hinting);
}

bool Font::GetKerning() const {
	return TTF_GetFontKerning(font_);
}

void Font::SetKerning(bool allowed) {
	TTF_SetFontKerning(font_, allowed);
}

int Font::GetHeight() const {
	return TTF_FontHeight(font_);
}

int Font::GetAscent() const {
	return TTF_FontAscent(font_);
}

int Font::GetDescent() const {
	return TTF_FontDescent(font_);
}

int Font::GetLineSkip() const {
	return TTF_FontLineSkip(font_);
}

int Font::GetNumFaces() const {
	return TTF_FontFaces(font_);
}

bool Font::IsFixedWidth() const {
	return TTF_FontFaceIsFixedWidth(font_);
}

Optional<std::string> Font::GetFamilyName() const {
	const char* str = TTF_FontFaceFamilyName(font_);
	if (str == nullptr)
		return NullOpt;
	return std::string(str);
}

Optional<std::string> Font::GetStyleName() const {
	const char* str = TTF_FontFaceStyleName(font_);
	if (str == nullptr)
		return NullOpt;
	return std::string(str);
}

void Font::GetGlyphMetrics(Uint16 ch, int& minx, int& maxx, int& miny, int& maxy, int& advance) const {
	if (TTF_GlyphMetrics(font_, ch, &minx, &maxx, &miny, &maxy, &advance) != 0)
		throw Exception("TTF_GlyphMetrics failed");
}

Rect Font::GetGlyphRect(Uint16 ch) const {
	int minx, maxx, miny, maxy;
	if (TTF_GlyphMetrics(font_, ch, &minx, &maxx, &miny, &maxy, nullptr) != 0)
		throw Exception("TTF_GlyphMetrics failed");
	return Rect(minx, miny, maxx - minx + 1, maxy - miny + 1);
}

int Font::GetGlyphAdvance(Uint16 ch) const {
	int advance;
	if (TTF_GlyphMetrics(font_, ch, nullptr, nullptr, nullptr, nullptr, &advance) != 0)
		throw Exception("TTF_GlyphMetrics failed");
	return advance;
}

Point Font::GetSizeText(const std::string& text) const {
	int w, h;
	if (TTF_SizeText(font_, text.c_str(), &w, &h) != 0)
		throw Exception("TTF_SizeText failed");
	return Point(w, h);
}

Point Font::GetSizeUTF8(const std::string& text) const {
	int w, h;
	if (TTF_SizeUTF8(font_, text.c_str(), &w, &h) != 0)
		throw Exception("TTF_SizeUTF8 failed");
	return Point(w, h);
}

Point Font::GetSizeUNICODE(const Uint16* text) const {
	int w, h;
	if (TTF_SizeUNICODE(font_, text, &w, &h) != 0)
		throw Exception("TTF_SizeUNICODE failed");
	return Point(w, h);
}

Surface Font::RenderText_Solid(const std::string& text, SDL_Color fg) {
	SDL_Surface* surface = TTF_RenderText_Solid(font_, text.c_str(), fg);
	if (surface == nullptr)
		throw Exception("TTF_RenderText_Solid failed");
	return Surface(surface);
}

Surface Font::RenderUTF8_Solid(const std::string& text, SDL_Color fg) {
	SDL_Surface* surface = TTF_RenderUTF8_Solid(font_, text.c_str(), fg);
	if (surface == nullptr)
		throw Exception("TTF_RenderUTF8_Solid failed");
	return Surface(surface);
}

Surface Font::RenderUNICODE_Solid(const Uint16* text, SDL_Color fg) {
	SDL_Surface* surface = TTF_RenderUNICODE_Solid(font_, text, fg);
	if (surface == nullptr)
		throw Exception("TTF_RenderUNICODE_Solid failed");
	return Surface(surface);
}

Surface Font::RenderGlyph_Solid(Uint16 ch, SDL_Color fg) {
	SDL_Surface* surface = TTF_RenderGlyph_Solid(font_, ch, fg);
	if (surface == nullptr)
		throw Exception("TTF_RenderGlyph_Solid failed");
	return Surface(surface);
}

Surface Font::RenderText_Shaded(const std::string& text, SDL_Color fg, SDL_Color bg) {
	SDL_Surface* surface = TTF_RenderText_Shaded(font_, text.c_str(), fg, bg);
	if (surface == nullptr)
		throw Exception("TTF_RenderText_Shaded failed");
	return Surface(surface);
}

Surface Font::RenderUTF8_Shaded(const std::string& text, SDL_Color fg, SDL_Color bg) {
	SDL_Surface* surface = TTF_RenderUTF8_Shaded(font_, text.c_str(), fg, bg);
	if (surface == nullptr)
		throw Exception("TTF_RenderUTF8_Shaded failed");
	return Surface(surface);
}

Surface Font::RenderUNICODE_Shaded(const Uint16* text, SDL_Color fg, SDL_Color bg) {
	SDL_Surface* surface = TTF_RenderUNICODE_Shaded(font_, text, fg, bg);
	if (surface == nullptr)
		throw Exception("TTF_RenderUNICODE_Shaded failed");
	return Surface(surface);
}

Surface Font::RenderGlyph_Shaded(Uint16 ch, SDL_Color fg, SDL_Color bg) {
	SDL_Surface* surface = TTF_RenderGlyph_Shaded(font_, ch, fg, bg);
	if (surface == nullptr)
		throw Exception("TTF_RenderGlyph_Shaded failed");
	return Surface(surface);
}

Surface Font::RenderText_Blended(const std::string& text, SDL_Color fg) {
	SDL_Surface* surface = TTF_RenderText_Blended(font_, text.c_str(), fg);
	if (surface == nullptr)
		throw Exception("TTF_RenderText_Blended failed");
	return Surface(surface);
}

Surface Font::RenderUTF8_Blended(const std::string& text, SDL_Color fg) {
	SDL_Surface* surface = TTF_RenderUTF8_Blended(font_, text.c_str(), fg);
	if (surface == nullptr)
		throw Exception("TTF_RenderUTF8_Blended failed");
	return Surface(surface);
}

Surface Font::RenderUNICODE_Blended(const Uint16* text, SDL_Color fg) {
	SDL_Surface* surface = TTF_RenderUNICODE_Blended(font_, text, fg);
	if (surface == nullptr)
		throw Exception("TTF_RenderUNICODE_Blended failed");
	return Surface(surface);
}

Surface Font::RenderGlyph_Blended(Uint16 ch, SDL_Color fg) {
	SDL_Surface* surface = TTF_RenderGlyph_Blended(font_, ch, fg);
	if (surface == nullptr)
		throw Exception("TTF_RenderGlyph_Blended failed");
	return Surface(surface);
}

}