mirror of
https://github.com/TTimo/GtkRadiant.git
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2505d52897
git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/trunk@154 8a3a26a2-13c4-0310-b231-cf6edde360e5
141 lines
3.8 KiB
C++
141 lines
3.8 KiB
C++
/*
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Copyright (C) 2001-2006, William Joseph.
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All Rights Reserved.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant 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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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "glfont.h"
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#ifdef _WIN32
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#include <windows.h>
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#endif
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#include <GL/gl.h>
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#include "debugging/debugging.h"
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// LordHavoc: this is code for direct Xlib bitmap character fetching, as an
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// alternative to requiring gtkglarea, it was created due to a lack of this
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// package on SuSE 9.x but this package is now commonly shipping in Linux
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// distributions so this code may be unnecessary, feel free however to enable
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// it when building packages for distros that do not ship with that package,
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// or if you just prefer less dependencies...
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#if 0
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#include <X11/Xlib.h>
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#include <gdk/gdkx.h>
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#include <GL/glx.h>
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GLFont glfont_create(const char* font_string)
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{
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GLuint font_list_base;
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XFontStruct *fontInfo;
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Display *dpy = GDK_DISPLAY ();
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unsigned int i, first, last, firstrow, lastrow;
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int maxchars;
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int firstbitmap;
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fontInfo = XLoadQueryFont (dpy, "-*-fixed-*-*-*-*-8-*-*-*-*-*-*-*");
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if (fontInfo == NULL)
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{
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// try to load other fonts
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fontInfo = XLoadQueryFont (dpy, "-*-fixed-*-*-*-*-*-*-*-*-*-*-*-*");
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// any font will do !
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if (fontInfo == NULL)
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fontInfo = XLoadQueryFont(dpy, "-*-*-*-*-*-*-*-*-*-*-*-*-*-*");
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if (fontInfo == NULL)
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ERROR_MESSAGE("couldn't create font");
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}
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first = (int)fontInfo->min_char_or_byte2;
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last = (int)fontInfo->max_char_or_byte2;
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firstrow = (int)fontInfo->min_byte1;
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lastrow = (int)fontInfo->max_byte1;
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/*
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* How many chars in the charset
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*/
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maxchars = 256 * lastrow + last;
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font_list_base = glGenLists(maxchars+1);
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if (font_list_base == 0)
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{
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ERROR_MESSAGE( "couldn't create font" );
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}
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/*
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* Get offset to first char in the charset
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*/
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firstbitmap = 256 * firstrow + first;
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/*
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* for each row of chars, call glXUseXFont to build the bitmaps.
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*/
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for(i=firstrow; i<=lastrow; i++)
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{
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glXUseXFont(fontInfo->fid, firstbitmap, last-first+1, font_list_base+firstbitmap);
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firstbitmap += 256;
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}
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/* *height = fontInfo->ascent + fontInfo->descent;
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*width = fontInfo->max_bounds.width; */
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return GLFont(font_list_base, fontInfo->ascent + fontInfo->descent);
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}
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void glfont_release(GLFont& font)
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{
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glDeleteLists(font.getDisplayList(), 256);
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font = GLFont(0, 0);
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}
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#else
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#include <gtk/gtkglwidget.h>
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GLFont glfont_create(const char* font_string)
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{
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GLuint font_list_base = glGenLists (256);
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gint font_height = 0;
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PangoFontDescription* font_desc = pango_font_description_from_string (font_string);
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PangoFont* font = gdk_gl_font_use_pango_font (font_desc, 0, 256, font_list_base);
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if(font != 0)
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{
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PangoFontMetrics* font_metrics = pango_font_get_metrics (font, 0);
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font_height = pango_font_metrics_get_ascent (font_metrics) +
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pango_font_metrics_get_descent (font_metrics);
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font_height = PANGO_PIXELS (font_height);
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pango_font_metrics_unref (font_metrics);
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}
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pango_font_description_free (font_desc);
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// fix for pango/gtkglext metrix bug
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if(font_height > 16)
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font_height = 16;
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return GLFont(font_list_base, font_height);
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}
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void glfont_release(GLFont& font)
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{
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glDeleteLists(font.getDisplayList(), 256);
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font = GLFont(0, 0);
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}
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#endif
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