1 /*
2 * client/Font.cpp
3 *
4 * This file is part of Leges Motus, a networked, 2D shooter set in zero gravity.
5 *
6 * Copyright 2009-2010 Andrew Ayer, Nathan Partlan, Jeffrey Pfau
7 *
8 * Leges Motus is free and open source software. You may redistribute it and/or
9 * modify it under the terms of version 2, or (at your option) version 3, of the
10 * GNU General Public License (GPL), as published by the Free Software Foundation.
11 *
12 * Leges Motus is distributed in the hope that it will be useful, but WITHOUT ANY
13 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
14 * PARTICULAR PURPOSE. See the full text of the GNU General Public License for
15 * further detail.
16 *
17 * For a full copy of the GNU General Public License, please see the COPYING file
18 * in the root of the source code tree. You may also retrieve a copy from
19 * <http://www.gnu.org/licenses/gpl-2.0.txt>, or request a copy by writing to the
20 * Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
21 * 02111-1307 USA
22 *
23 */
24
25 #include "Font.hpp"
26 #include "common/Exception.hpp"
27
28 using namespace LM;
29 using namespace std;
30
Font(const char * filename,int size)31 Font::Font(const char* filename, int size) {
32 if (!TTF_WasInit() && TTF_Init() == -1) {
33 throw Exception("Could not init SDL_TTF!");
34 }
35 m_font = TTF_OpenFont(filename, size);
36 if (!m_font) {
37 throw Exception("Could not load font!");
38 }
39 }
40
~Font()41 Font::~Font() {
42 if (m_font != NULL) {
43 TTF_CloseFont(m_font);
44 }
45 }
46
set_font_style(bool bold,bool italic)47 void Font::set_font_style(bool bold, bool italic) {
48 if (bold && italic) {
49 TTF_SetFontStyle(m_font, TTF_STYLE_BOLD|TTF_STYLE_ITALIC);
50 } else if (bold) {
51 TTF_SetFontStyle(m_font, TTF_STYLE_BOLD);
52 } else if (italic) {
53 TTF_SetFontStyle(m_font, TTF_STYLE_ITALIC);
54 } else {
55 TTF_SetFontStyle(m_font, TTF_STYLE_NORMAL);
56 }
57 }
58
render_string(const string & text,const ConvolveKernel * kernel)59 Sprite* Font::render_string(const string& text, const ConvolveKernel* kernel) {
60 SDL_Color white = { 255, 255, 255, 0 };
61 SDL_Surface* rendered = TTF_RenderUTF8_Blended(m_font, text.c_str(), white);
62 if (rendered == NULL) {
63 return NULL;
64 }
65 if (kernel != NULL) {
66 SDL_Surface* convolved = kernel->convolve(rendered);
67 SDL_FreeSurface(rendered);
68 rendered = convolved;
69 }
70 Sprite* text_sprite = new Sprite(rendered);
71 SDL_FreeSurface(rendered);
72 return text_sprite;
73 }
74
size_string(const string & text,int * w,int * h)75 bool Font::size_string(const string& text, int* w, int* h) {
76 return TTF_SizeText(m_font, text.c_str(), w, h) == 0;
77 }
78
line_skip() const79 int Font::line_skip() const {
80 return TTF_FontLineSkip(m_font);
81 }
82
ascent() const83 int Font::ascent() const {
84 return TTF_FontAscent(m_font);
85 }
86
descent() const87 int Font::descent() const {
88 return TTF_FontDescent(m_font);
89 }
90
max_height() const91 int Font::max_height() const {
92 return TTF_FontHeight(m_font);
93 }
94