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-rw-r--r--src/gui/font.cpp658
-rw-r--r--src/gui/font.h213
2 files changed, 871 insertions, 0 deletions
diff --git a/src/gui/font.cpp b/src/gui/font.cpp
new file mode 100644
index 000000000..a154d8c54
--- /dev/null
+++ b/src/gui/font.cpp
@@ -0,0 +1,658 @@
+/*
+ * The ManaPlus Client
+ * Copyright (C) 2004-2009 The Mana World Development Team
+ * Copyright (C) 2009-2010 The Mana Developers
+ * Copyright (C) 2009 Aethyra Development Team
+ * Copyright (C) 2011-2014 The ManaPlus Developers
+ *
+ * This file is part of The ManaPlus Client.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* _______ __ __ __ ______ __ __ _______ __ __
+ * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
+ * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
+ * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ *
+ *
+ * Per Larsson a.k.a finalman
+ * Olof Naessén a.k.a jansem/yakslem
+ *
+ * Visit: http://guichan.sourceforge.net
+ *
+ * License: (BSD)
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name of Guichan nor the names of its contributors may
+ * be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "gui/font.h"
+
+#include "logger.h"
+#include "main.h"
+
+#include "render/sdlgraphics.h"
+
+#include "resources/image.h"
+#include "resources/imagehelper.h"
+#include "resources/resourcemanager.h"
+#include "resources/surfaceimagehelper.h"
+
+#include "utils/paths.h"
+#include "utils/physfsrwops.h"
+#include "utils/sdlcheckutils.h"
+#include "utils/stringutils.h"
+#include "utils/timer.h"
+
+#include "debug.h"
+
+const unsigned int CACHE_SIZE = 256;
+const unsigned int CACHE_SIZE_SMALL1 = 2;
+const unsigned int CACHE_SIZE_SMALL2 = 50;
+const unsigned int CACHE_SIZE_SMALL3 = 170;
+const unsigned int CLEAN_TIME = 7;
+const int OUTLINE_SIZE = 1;
+
+bool Font::mSoftMode(false);
+
+char *strBuf = nullptr;
+
+#ifdef UNITTESTS
+int sdlTextChunkCnt = 0;
+#endif
+
+SDLTextChunkSmall::SDLTextChunkSmall(const std::string &text0,
+ const gcn::Color &color0,
+ const gcn::Color &color1) :
+ text(text0),
+ color(color0),
+ color2(color1)
+{
+}
+
+SDLTextChunkSmall::SDLTextChunkSmall(const SDLTextChunkSmall &old) :
+ text(old.text),
+ color(old.color),
+ color2(old.color2)
+{
+}
+
+bool SDLTextChunkSmall::operator==(const SDLTextChunkSmall &chunk) const
+{
+ return (chunk.text == text && chunk.color == color
+ && chunk.color2 == color2);
+}
+
+bool SDLTextChunkSmall::operator<(const SDLTextChunkSmall &chunk) const
+{
+ if (chunk.text != text)
+ return chunk.text > text;
+
+ const gcn::Color &c = chunk.color;
+ if (c.r != color.r)
+ return c.r > color.r;
+ if (c.g != color.g)
+ return c.g > color.g;
+ if (c.b != color.b)
+ return c.b > color.b;
+
+ const gcn::Color &c2 = chunk.color2;
+ if (c2.r != color2.r)
+ return c2.r > color2.r;
+ if (c2.g != color2.g)
+ return c2.g > color2.g;
+ if (c2.b != color2.b)
+ return c2.b > color2.b;
+
+ if (c.a != color.a && Font::mSoftMode)
+ return c.a > color.a;
+
+ return false;
+}
+
+SDLTextChunk::SDLTextChunk(const std::string &text0, const gcn::Color &color0,
+ const gcn::Color &color1) :
+ img(nullptr),
+ text(text0),
+ color(color0),
+ color2(color1),
+ prev(nullptr),
+ next(nullptr)
+{
+#ifdef UNITTESTS
+ sdlTextChunkCnt ++;
+#endif
+}
+
+SDLTextChunk::~SDLTextChunk()
+{
+ delete img;
+ img = nullptr;
+#ifdef UNITTESTS
+ sdlTextChunkCnt --;
+#endif
+}
+
+bool SDLTextChunk::operator==(const SDLTextChunk &chunk) const
+{
+ return (chunk.text == text && chunk.color == color
+ && chunk.color2 == color2);
+}
+
+void SDLTextChunk::generate(TTF_Font *const font, const float alpha)
+{
+ BLOCK_START("SDLTextChunk::generate")
+ SDL_Color sdlCol;
+ sdlCol.b = static_cast<uint8_t>(color.b);
+ sdlCol.r = static_cast<uint8_t>(color.r);
+ sdlCol.g = static_cast<uint8_t>(color.g);
+#ifdef USE_SDL2
+ sdlCol.a = 255;
+#else
+ sdlCol.unused = 0;
+#endif
+
+ getSafeUtf8String(text, strBuf);
+
+ SDL_Surface *surface = MTTF_RenderUTF8_Blended(
+ font, strBuf, sdlCol);
+
+ if (!surface)
+ {
+ img = nullptr;
+ BLOCK_END("SDLTextChunk::generate")
+ return;
+ }
+
+ const int width = surface->w;
+ const int height = surface->h;
+
+ if (color.r != color2.r || color.g != color2.g
+ || color.b != color2.b)
+ { // outlining
+ SDL_Color sdlCol2;
+ SDL_Surface *const background = imageHelper->create32BitSurface(
+ width, height);
+ if (!background)
+ {
+ img = nullptr;
+ MSDL_FreeSurface(surface);
+ BLOCK_END("SDLTextChunk::generate")
+ return;
+ }
+ sdlCol2.b = static_cast<uint8_t>(color2.b);
+ sdlCol2.r = static_cast<uint8_t>(color2.r);
+ sdlCol2.g = static_cast<uint8_t>(color2.g);
+#ifdef USE_SDL2
+ sdlCol2.a = 255;
+#else
+ sdlCol2.unused = 0;
+#endif
+ SDL_Surface *const surface2 = MTTF_RenderUTF8_Blended(
+ font, strBuf, sdlCol2);
+ if (!surface2)
+ {
+ img = nullptr;
+ MSDL_FreeSurface(surface);
+ BLOCK_END("SDLTextChunk::generate")
+ return;
+ }
+ SDL_Rect rect =
+ {
+ OUTLINE_SIZE,
+ 0,
+ static_cast<Uint16>(surface->w),
+ static_cast<Uint16>(surface->h)
+ };
+ SurfaceImageHelper::combineSurface(surface2, nullptr,
+ background, &rect);
+ rect.x = -OUTLINE_SIZE;
+ SurfaceImageHelper::combineSurface(surface2, nullptr,
+ background, &rect);
+ rect.x = 0;
+ rect.y = -OUTLINE_SIZE;
+ SurfaceImageHelper::combineSurface(surface2, nullptr,
+ background, &rect);
+ rect.y = OUTLINE_SIZE;
+ SurfaceImageHelper::combineSurface(surface2, nullptr,
+ background, &rect);
+ rect.x = 0;
+ rect.y = 0;
+ SurfaceImageHelper::combineSurface(surface, nullptr,
+ background, &rect);
+ MSDL_FreeSurface(surface);
+ MSDL_FreeSurface(surface2);
+ surface = background;
+ }
+ img = imageHelper->createTextSurface(
+ surface, width, height, alpha);
+ MSDL_FreeSurface(surface);
+
+ BLOCK_END("SDLTextChunk::generate")
+}
+
+
+TextChunkList::TextChunkList() :
+ start(nullptr),
+ end(nullptr),
+ size(0),
+ search(),
+ searchWidth()
+{
+}
+
+void TextChunkList::insertFirst(SDLTextChunk *const item)
+{
+ SDLTextChunk *const oldFirst = start;
+ if (start)
+ start->prev = item;
+ item->prev = nullptr;
+ if (oldFirst)
+ item->next = oldFirst;
+ else
+ end = item;
+ start = item;
+ size ++;
+ search[SDLTextChunkSmall(item->text, item->color, item->color2)] = item;
+ searchWidth[item->text] = item;
+}
+
+void TextChunkList::moveToFirst(SDLTextChunk *item)
+{
+ if (item == start)
+ return;
+
+ SDLTextChunk *oldPrev = item->prev;
+ if (oldPrev)
+ oldPrev->next = item->next;
+ SDLTextChunk *oldNext = item->next;
+ if (oldNext)
+ oldNext->prev = item->prev;
+ else
+ end = oldPrev;
+ SDLTextChunk *const oldFirst = start;
+ if (start)
+ start->prev = item;
+ item->prev = nullptr;
+ item->next = oldFirst;
+ start = item;
+}
+
+void TextChunkList::removeBack()
+{
+ SDLTextChunk *oldEnd = end;
+ if (oldEnd)
+ {
+ end = oldEnd->prev;
+ if (end)
+ end->next = nullptr;
+ else
+ start = nullptr;
+ search.erase(SDLTextChunkSmall(oldEnd->text,
+ oldEnd->color, oldEnd->color2));
+ searchWidth.erase(oldEnd->text);
+ delete oldEnd;
+ size --;
+ }
+}
+
+void TextChunkList::removeBack(int n)
+{
+ SDLTextChunk *item = end;
+ while (n && item)
+ {
+ n --;
+ SDLTextChunk *oldEnd = item;
+ item = item->prev;
+ search.erase(SDLTextChunkSmall(oldEnd->text,
+ oldEnd->color, oldEnd->color2));
+ searchWidth.erase(oldEnd->text);
+ delete oldEnd;
+ size --;
+ }
+ if (item)
+ {
+ item->next = nullptr;
+ end = item;
+ }
+ else
+ {
+ start = nullptr;
+ end = nullptr;
+ }
+}
+
+void TextChunkList::clear()
+{
+ search.clear();
+ searchWidth.clear();
+ SDLTextChunk *item = start;
+ while (item)
+ {
+ SDLTextChunk *item2 = item->next;
+ delete item;
+ item = item2;
+ }
+ start = nullptr;
+ end = nullptr;
+ size = 0;
+}
+
+static int fontCounter;
+
+Font::Font(std::string filename,
+ const int size,
+ const int style) :
+ mFont(nullptr),
+ mCreateCounter(0),
+ mDeleteCounter(0),
+ mCleanTime(cur_time + CLEAN_TIME)
+{
+ if (fontCounter == 0)
+ {
+ mSoftMode = imageHelper->useOpenGL() == RENDER_SOFTWARE;
+ if (TTF_Init() == -1)
+ {
+ logger->error("Unable to initialize SDL_ttf: " +
+ std::string(TTF_GetError()));
+ }
+ }
+
+ if (!fontCounter)
+ {
+ strBuf = new char[65535];
+ memset(strBuf, 0, 65535);
+ }
+
+ ++fontCounter;
+
+ fixDirSeparators(filename);
+ mFont = openFont(filename.c_str(), size);
+
+ if (!mFont)
+ {
+ logger->log("Error finding font " + filename);
+ std::string backFile("fonts/dejavusans.ttf");
+ mFont = openFont(fixDirSeparators(backFile).c_str(), size);
+ if (!mFont)
+ {
+ logger->error("Font::Font: " +
+ std::string(TTF_GetError()));
+ }
+ }
+
+ TTF_SetFontStyle(mFont, style);
+}
+
+Font::~Font()
+{
+ TTF_CloseFont(mFont);
+ mFont = nullptr;
+ --fontCounter;
+ clear();
+
+ if (fontCounter == 0)
+ {
+ TTF_Quit();
+ delete []strBuf;
+ }
+}
+
+TTF_Font *Font::openFont(const char *const name, const int size)
+{
+// disabled for now because some systems like gentoo cant use it
+// #ifdef USE_SDL2
+// SDL_RWops *const rw = MPHYSFSRWOPS_openRead(name);
+// if (!rw)
+// return nullptr;
+// return TTF_OpenFontIndexRW(rw, 1, size, 0);
+// #else
+ return TTF_OpenFontIndex(ResourceManager::getPath(name).c_str(),
+ size, 0);
+// #endif
+}
+
+void Font::loadFont(std::string filename,
+ const int size,
+ const int style)
+{
+ if (fontCounter == 0 && TTF_Init() == -1)
+ {
+ logger->log("Unable to initialize SDL_ttf: " +
+ std::string(TTF_GetError()));
+ return;
+ }
+
+ fixDirSeparators(filename);
+ TTF_Font *const font = openFont(filename.c_str(), size);
+
+ if (!font)
+ {
+ logger->log("Font::Font: " +
+ std::string(TTF_GetError()));
+ return;
+ }
+
+ if (mFont)
+ TTF_CloseFont(mFont);
+
+ mFont = font;
+ TTF_SetFontStyle(mFont, style);
+ clear();
+}
+
+void Font::clear()
+{
+ for (size_t f = 0; f < CACHES_NUMBER; f ++)
+ mCache[f].clear();
+}
+
+void Font::drawString(Graphics *const graphics,
+ const std::string &text,
+ const int x, const int y)
+{
+ BLOCK_START("Font::drawString")
+ if (text.empty())
+ {
+ BLOCK_END("Font::drawString")
+ return;
+ }
+
+ Graphics *const g = dynamic_cast<Graphics *const>(graphics);
+ if (!g)
+ return;
+
+ gcn::Color col = g->getColor();
+ const gcn::Color &col2 = g->getColor2();
+ const float alpha = static_cast<float>(col.a) / 255.0F;
+
+ /* The alpha value is ignored at string generation so avoid caching the
+ * same text with different alpha values.
+ */
+ col.a = 255;
+
+ const unsigned char chr = text[0];
+ TextChunkList *const cache = &mCache[chr];
+
+ std::map<SDLTextChunkSmall, SDLTextChunk*> &search = cache->search;
+ std::map<SDLTextChunkSmall, SDLTextChunk*>::iterator i
+ = search.find(SDLTextChunkSmall(text, col, col2));
+ if (i != search.end())
+ {
+ SDLTextChunk *const chunk2 = (*i).second;
+ cache->moveToFirst(chunk2);
+ Image *const image = chunk2->img;
+ if (image)
+ {
+ image->setAlpha(alpha);
+ g->drawImage2(image, x, y);
+ }
+ }
+ else
+ {
+ if (cache->size >= CACHE_SIZE)
+ {
+#ifdef DEBUG_FONT_COUNTERS
+ mDeleteCounter ++;
+#endif
+ cache->removeBack();
+ }
+#ifdef DEBUG_FONT_COUNTERS
+ mCreateCounter ++;
+#endif
+ SDLTextChunk *chunk2 = new SDLTextChunk(text, col, col2);
+
+ chunk2->generate(mFont, alpha);
+ cache->insertFirst(chunk2);
+
+ const Image *const image = chunk2->img;
+ if (image)
+ g->drawImage2(image, x, y);
+ }
+ BLOCK_END("Font::drawString")
+}
+
+void Font::slowLogic(const int rnd)
+{
+ BLOCK_START("Font::slowLogic")
+ if (!mCleanTime)
+ {
+ mCleanTime = cur_time + CLEAN_TIME + rnd;
+ }
+ else if (mCleanTime < cur_time)
+ {
+ doClean();
+ mCleanTime = cur_time + CLEAN_TIME + rnd;
+ }
+ BLOCK_END("Font::slowLogic")
+}
+
+int Font::getWidth(const std::string &text) const
+{
+ if (text.empty())
+ return 0;
+
+ const unsigned char chr = text[0];
+ TextChunkList *const cache = &mCache[chr];
+
+ std::map<std::string, SDLTextChunk*> &search = cache->searchWidth;
+ std::map<std::string, SDLTextChunk*>::iterator i = search.find(text);
+ if (i != search.end())
+ {
+ SDLTextChunk *const chunk = (*i).second;
+ cache->moveToFirst(chunk);
+ const Image *const image = chunk->img;
+ if (image)
+ return image->getWidth();
+ else
+ return 0;
+ }
+
+ // if string was not drawed
+ int w, h;
+ getSafeUtf8String(text, strBuf);
+ TTF_SizeUTF8(mFont, strBuf, &w, &h);
+ return w;
+}
+
+int Font::getHeight() const
+{
+ return TTF_FontHeight(mFont);
+}
+
+void Font::doClean()
+{
+ for (unsigned int f = 0; f < CACHES_NUMBER; f ++)
+ {
+ TextChunkList *const cache = &mCache[f];
+ const size_t size = cache->size;
+#ifdef DEBUG_FONT_COUNTERS
+ logger->log("ptr: %d, size: %d", f, size);
+#endif
+ if (size > CACHE_SIZE_SMALL3)
+ {
+#ifdef DEBUG_FONT_COUNTERS
+ mDeleteCounter += 100;
+#endif
+ cache->removeBack(100);
+#ifdef DEBUG_FONT_COUNTERS
+ logger->log("delete3");
+#endif
+ }
+ else if (size > CACHE_SIZE_SMALL2)
+ {
+#ifdef DEBUG_FONT_COUNTERS
+ mDeleteCounter += 20;
+#endif
+ cache->removeBack(20);
+#ifdef DEBUG_FONT_COUNTERS
+ logger->log("delete2");
+#endif
+ }
+ else if (size > CACHE_SIZE_SMALL1)
+ {
+#ifdef DEBUG_FONT_COUNTERS
+ mDeleteCounter ++;
+#endif
+ cache->removeBack();
+#ifdef DEBUG_FONT_COUNTERS
+ logger->log("delete1");
+#endif
+ }
+ }
+}
+
+int Font::getStringIndexAt(const std::string& text, const int x) const
+{
+ const size_t sz = text.size();
+ for (size_t i = 0; i < sz; ++i)
+ {
+ if (getWidth(text.substr(0, i)) > x)
+ return i;
+ }
+
+ return static_cast<int>(sz);
+}
+
+const TextChunkList *Font::getCache() const
+{
+ return mCache;
+}
diff --git a/src/gui/font.h b/src/gui/font.h
new file mode 100644
index 000000000..8740b4f3b
--- /dev/null
+++ b/src/gui/font.h
@@ -0,0 +1,213 @@
+/*
+ * The ManaPlus Client
+ * Copyright (C) 2004-2009 The Mana World Development Team
+ * Copyright (C) 2009-2010 The Mana Developers
+ * Copyright (C) 2011-2014 The ManaPlus Developers
+ * Copyright (C) 2009 Aethyra Development Team
+ *
+ * This file is part of The ManaPlus Client.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* _______ __ __ __ ______ __ __ _______ __ __
+ * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
+ * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
+ * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ *
+ *
+ * Per Larsson a.k.a finalman
+ * Olof Naessén a.k.a jansem/yakslem
+ *
+ * Visit: http://guichan.sourceforge.net
+ *
+ * License: (BSD)
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name of Guichan nor the names of its contributors may
+ * be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef GUI_FONT_H
+#define GUI_FONT_H
+
+#include "gui/base/color.hpp"
+
+#include <SDL_ttf.h>
+
+#include <map>
+#include <string>
+
+#include "localconsts.h"
+
+class Graphics;
+class Image;
+
+const unsigned int CACHES_NUMBER = 256;
+
+class SDLTextChunkSmall
+{
+ public:
+ SDLTextChunkSmall(const std::string &text0, const gcn::Color &color0,
+ const gcn::Color &color1);
+
+ SDLTextChunkSmall(const SDLTextChunkSmall &old);
+
+ bool operator==(const SDLTextChunkSmall &chunk) const;
+ bool operator<(const SDLTextChunkSmall &chunk) const;
+
+ std::string text;
+ gcn::Color color;
+ gcn::Color color2;
+};
+
+class SDLTextChunk final
+{
+ public:
+ SDLTextChunk(const std::string &text0, const gcn::Color &color0,
+ const gcn::Color &color1);
+
+ A_DELETE_COPY(SDLTextChunk)
+
+ ~SDLTextChunk();
+
+ bool operator==(const SDLTextChunk &chunk) const;
+
+ void generate(TTF_Font *const font, const float alpha);
+
+ Image *img;
+ std::string text;
+ gcn::Color color;
+ gcn::Color color2;
+ SDLTextChunk *prev;
+ SDLTextChunk *next;
+};
+
+
+class TextChunkList final
+{
+ public:
+ TextChunkList();
+
+ A_DELETE_COPY(TextChunkList)
+
+ void insertFirst(SDLTextChunk *const item);
+
+ void moveToFirst(SDLTextChunk *item);
+
+ void removeBack();
+
+ void removeBack(int n);
+
+ void clear();
+
+ SDLTextChunk *start;
+ SDLTextChunk *end;
+ uint32_t size;
+ std::map<SDLTextChunkSmall, SDLTextChunk*> search;
+ std::map<std::string, SDLTextChunk*> searchWidth;
+};
+
+/**
+ * A wrapper around SDL_ttf for allowing the use of TrueType fonts.
+ *
+ * <b>NOTE:</b> This class initializes SDL_ttf as necessary.
+ */
+class Font final
+{
+ public:
+ Font(std::string filename,
+ const int size,
+ const int style = 0);
+
+ A_DELETE_COPY(Font)
+
+ ~Font();
+
+ void loadFont(std::string filename,
+ const int size,
+ const int style = 0);
+
+ int getWidth(const std::string &text) const A_WARN_UNUSED;
+
+ int getHeight() const A_WARN_UNUSED;
+
+ const TextChunkList *getCache() const A_WARN_UNUSED;
+
+ /**
+ * @see Font::drawString
+ */
+ void drawString(Graphics *const graphics,
+ const std::string &text,
+ const int x, const int y);
+
+ void clear();
+
+ void doClean();
+
+ void slowLogic(const int rnd);
+
+ int getCreateCounter() const A_WARN_UNUSED
+ { return mCreateCounter; }
+
+ int getDeleteCounter() const A_WARN_UNUSED
+ { return mDeleteCounter; }
+
+ int getStringIndexAt(const std::string& text,
+ const int x) const A_WARN_UNUSED;
+
+ static bool mSoftMode;
+
+ private:
+ static TTF_Font *openFont(const char *const name, const int size);
+
+ TTF_Font *mFont;
+ unsigned mCreateCounter;
+ unsigned mDeleteCounter;
+
+ // Word surfaces cache
+ int mCleanTime;
+ mutable TextChunkList mCache[CACHES_NUMBER];
+};
+
+#ifdef UNITTESTS
+extern int sdlTextChunkCnt;
+#endif
+
+#endif // GUI_FONT_H
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