407 lines
10 KiB
C++
407 lines
10 KiB
C++
/* --------------------------------------------------------------------
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EXTREME TUXRACER
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Copyright (C) 1999-2001 Jasmin F. Patry (Tuxracer)
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Copyright (C) 2004-2005 Volker Stroebel (Planetpenguin Racer)
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Copyright (C) 2010 Extreme Tuxracer Team
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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---------------------------------------------------------------------*/
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#ifdef HAVE_CONFIG_H
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#include <etr_config.h>
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#endif
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#include "font.h"
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#include "ft_font.h"
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#include "spx.h"
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#include "winsys.h"
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#define USE_UNICODE 1
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// --------------------------------------------------------------------
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// First some common function used for textboxes and called by
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// CFont::MakeLineList. This bundle of functions generates
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// a vector<string> from a textstring and adapts the lines to the textbox
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static void MakeWordList (vector<string>& wordlist, const char *s) {
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size_t start = 0;
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for (size_t i = 0; s[i] != '\0'; i++) {
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if (s[i] == ' ') {
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if (i != start)
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wordlist.push_back(string(s+start, i-start));
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while (s[i+1] == ' ')
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i++;
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start = i+1;
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}
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}
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if (s[start] != '0')
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wordlist.push_back(string(s+start));
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}
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static size_t MakeLine (size_t first, const vector<string>& wordlist, vector<string>& linelist, float width) {
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if (first >= wordlist.size()) return wordlist.size()-1;
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size_t last = first;
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float lng = 0;
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float spacelng = FT.GetTextWidth("a a") - FT.GetTextWidth("aa");;
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while (last < wordlist.size()) {
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float wordlng = FT.GetTextWidth(wordlist[last]);
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lng += wordlng;
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lng += spacelng;
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if (lng >= width && first != last) // If first == last, we write beyond line
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break;
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last++;
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}
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string line;
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for (size_t j=first; j<last; j++) {
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line += wordlist[j];
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if (j < last)
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line += ' ';
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}
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linelist.push_back(line);
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return last-1;
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}
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// --------------------------------------------------------------------
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// CFont
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// --------------------------------------------------------------------
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CFont FT;
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CFont::CFont () {
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forientation = OR_TOP;
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// setting default values
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curr_col.r = 0.0; // default color: black
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curr_col.g = 0.0;
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curr_col.b = 0.0;
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curr_col.a = 1.0; // default: no transparency
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curr_size = 20; // default size: 20 px
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curr_fact = 0;
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curr_font = 0;
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}
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CFont::~CFont() {
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Clear();
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}
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void CFont::Clear () {
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for (size_t i = 0; i < fonts.size(); i++)
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delete fonts[i];
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fonts.clear();
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fontindex.clear();
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}
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// --------------------------------------------------------------------
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// private
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// --------------------------------------------------------------------
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wstring CFont::UnicodeStr (const char *s) {
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size_t len = strlen (s);
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wstring res;
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res.resize(len);
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for (size_t i=0, j=0; i < len; ++i, ++j) {
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wchar_t ch = ((const unsigned char *)s)[i];
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if (ch >= 0xF0) {
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ch = (wchar_t) (s[i] & 0x07) << 18;
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ch |= (wchar_t) (s[++i] & 0x3F) << 12;
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ch |= (wchar_t) (s[++i] & 0x3F) << 6;
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ch |= (wchar_t) (s[++i] & 0x3F);
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} else if (ch >= 0xE0) {
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ch = (wchar_t) (s[i] & 0x0F) << 12;
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ch |= (wchar_t) (s[++i] & 0x3F) << 6;
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ch |= (wchar_t) (s[++i] & 0x3F);
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} else if (ch >= 0xC0) {
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ch = (wchar_t) (s[i] & 0x1F) << 6;
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ch |= (wchar_t) (s[++i] & 0x3F);
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}
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res[j] = ch;
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}
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return res;
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}
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// --------------------------------------------------------------------
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// public
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// --------------------------------------------------------------------
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int CFont::LoadFont (const string& name, const char *path) {
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fonts.push_back(new FTGLPixmapFont (path));
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if (fonts.back()->Error()) {
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Message ("Failed to open font");
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return -1;
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}
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fonts.back()->FaceSize (18);
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fonts.back()->CharMap (ft_encoding_unicode);
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fontindex[name] = fonts.size()-1;
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return (int)fonts.size()-1;
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}
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int CFont::LoadFont (const string& name, const char *dir, const char *filename) {
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string path = dir;
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path += SEP;
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path += filename;
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return LoadFont (name, path.c_str());
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}
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bool CFont::LoadFontlist () {
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CSPList list(MAX_FONTS);
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if (!list.Load ( param.font_dir, "fonts.lst")) return false;
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for (size_t i=0; i<list.Count(); i++) {
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const string& line = list.Line(i);
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string fontfile = SPStrN (line, "file", "");
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string name = SPStrN (line, "name", "");
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int ftidx = LoadFont (name, param.font_dir.c_str(), fontfile.c_str());
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if (ftidx < 0) {
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Message ("couldn't load font", name);
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}
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}
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return true;
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}
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size_t CFont::GetFontIdx (const string &name) const {
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return fontindex.at(name);
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}
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void CFont::SetProps (const string &fontname, float size, const TColor& col) {
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SetProps(fontname, size);
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curr_col = col;
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}
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void CFont::SetProps (const string &fontname, float size) {
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if (!fontname.empty()) curr_font = (int)GetFontIdx (fontname);
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if (size > 0) curr_size = size;
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}
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void CFont::SetColor (float r, float g, float b, float a) {
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curr_col.r = r;
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curr_col.g = g;
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curr_col.b = b;
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curr_col.a = a;
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}
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void CFont::SetColor (const TColor& col) {
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curr_col = col;
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}
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void CFont::SetSize (float size) {
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curr_size = size;
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}
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void CFont::SetFont (const string& fontname) {
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try {
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curr_font = (int)fontindex[fontname];
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} catch (...) {
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curr_font = -1;
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}
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if (fontname == "pc20") curr_fact = 1.25;
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else curr_fact = 1.0;
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}
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// -------------------- auto ------------------------------------------
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int CFont::AutoSizeN (int rel_val) {
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double size = (rel_val + 2) * 4;
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size *= curr_fact;
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size *= Winsys.scale;
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SetSize (size);
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return (int)size;
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}
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int CFont::AutoDistanceN (int rel_val) {
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double fact = (rel_val + 5) * 0.2;
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double dist = curr_size * fact;
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return (int) dist;
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}
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// -------------------- draw (x, y, text) -----------------------------
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void CFont::DrawText(float x, float y, const char *text, size_t font, float size) const {
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if (font >= fonts.size()) return;
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glPushMatrix();
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fonts[font]->FaceSize ((int)size);
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glColor4f (curr_col.r, curr_col.g, curr_col.b, curr_col.a);
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float left;
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if (x >= 0) left = x;
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else left = (Winsys.resolution.width - GetTextWidth (text)) / 2;
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if (left < 0) left = 0;
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if (forientation == OR_TOP) {
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glRasterPos2i ((int)left, (int)(Winsys.resolution.height - curr_size - y));
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} else {
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glRasterPos2i ((int)left, (int)y);
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}
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fonts[font]->Render (text);
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glPopMatrix();
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}
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void CFont::DrawText(float x, float y, const wchar_t *text, size_t font, float size) const {
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if (font >= fonts.size()) return;
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glPushMatrix();
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fonts[font]->FaceSize ((int)size);
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glColor4f (curr_col.r, curr_col.g, curr_col.b, curr_col.a);
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float left;
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if (x >= 0) left = x;
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else left = (Winsys.resolution.width - GetTextWidth (text)) / 2;
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if (left < 0) left = 0;
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if (forientation == OR_TOP) {
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glRasterPos2i ((int)left, (int)(Winsys.resolution.height - curr_size - y));
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} else {
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glRasterPos2i ((int)left, (int)y);
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}
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fonts[font]->Render (text);
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glPopMatrix();
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}
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void CFont::DrawText (float x, float y, const char *text) const {
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#if USE_UNICODE
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DrawString(x, y, UnicodeStr(text));
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#else
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DrawText(x, y, text, curr_font);
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#endif
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}
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void CFont::DrawText (float x, float y, const wchar_t *text) const {
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DrawText(x, y, text, curr_font, curr_size);
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}
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void CFont::DrawString (float x, float y, const string &s) const {
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DrawText (x, y, s.c_str());
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}
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void CFont::DrawString (float x, float y, const wstring &s) const {
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DrawText (x, y, s.c_str());
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}
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void CFont::DrawText(float x, float y, const char *text, const string &fontname, float size) const {
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size_t temp_font = GetFontIdx (fontname);
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#if USE_UNICODE
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DrawText(x, y, UnicodeStr(text).c_str(), temp_font, size);
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#else
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DrawText(x, y, text, temp_font, size);
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#endif
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}
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void CFont::DrawText
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(float x, float y, const wchar_t *text, const string &fontname, float size) const {
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size_t temp_font = GetFontIdx (fontname);
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DrawText(x, y, text, temp_font, size);
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}
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void CFont::DrawString (
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float x, float y, const string &s, const string &fontname, float size) const {
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DrawText (x, y, s.c_str(), fontname, size);
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}
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void CFont::DrawString (
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float x, float y, const wstring &s, const string &fontname, float size) const {
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DrawText (x, y, s.c_str(), fontname, size);
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}
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// --------------------- metrics --------------------------------------
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void CFont::GetTextSize (const wchar_t *text, float &x, float &y, size_t font, float size) const {
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if (font >= fonts.size()) { x = 0; y = 0; return; }
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float llx, lly, llz, urx, ury, urz;
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fonts[font]->FaceSize ((int)size);
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fonts[font]->BBox (text, llx, lly, llz, urx, ury, urz);
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x = urx - llx;
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y = ury - lly;
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}
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void CFont::GetTextSize (const char *text, float &x, float &y, size_t font, float size) const {
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#if USE_UNICODE
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GetTextSize(UnicodeStr(text).c_str(), x, y, font, size);
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#else
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if (font >= fonts.size()) { x = 0; y = 0; return; }
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float llx, lly, llz, urx, ury, urz;
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fonts[font]->FaceSize ((int)size);
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fonts[font]->BBox (text, llx, lly, llz, urx, ury, urz);
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x = urx - llx;
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y = ury - lly;
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#endif
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}
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void CFont::GetTextSize (const char *text, float &x, float &y) const {
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GetTextSize(text, x, y, curr_font, curr_size);
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}
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void CFont::GetTextSize (const char *text, float &x, float &y, const string &fontname, float size) const {
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size_t temp_font = GetFontIdx (fontname);
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GetTextSize(text, x, y, temp_font, size);
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}
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float CFont::GetTextWidth (const char *text) const {
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float x, y;
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GetTextSize(text, x, y, curr_font, curr_size);
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return x;
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}
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float CFont::GetTextWidth (const string& text) const {
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return GetTextWidth (text.c_str());
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}
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float CFont::GetTextWidth (const wchar_t *text) const {
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float x, y;
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GetTextSize(text, x, y, curr_font, curr_size);
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return x;
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}
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float CFont::GetTextWidth (const char *text, const string &fontname, float size) const {
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size_t temp_font = GetFontIdx (fontname);
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float x, y;
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GetTextSize(text, x, y, temp_font, size);
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return x;
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}
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float CFont::GetTextWidth (const wchar_t *text, const string &fontname, float size) const {
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size_t temp_font = GetFontIdx (fontname);
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float x, y;
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GetTextSize(text, x, y, temp_font, size);
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return x;
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}
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float CFont::CenterX (const char *text) const {
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return (Winsys.resolution.width - GetTextWidth (text)) / 2.0;
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}
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void CFont::SetOrientation (Orientation orientation) {
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forientation = orientation;
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}
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vector<string> CFont::MakeLineList (const char *source, float width) {
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vector<string> wordlist;
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MakeWordList(wordlist, source);
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vector<string> linelist;
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for (size_t last = 0; last < wordlist.size();)
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last = MakeLine(last, wordlist, linelist, width)+1;
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return linelist;
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}
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