f44dd24462
fgpanel is basically the stripped down 2D-Panel code from FlightGear. It is designed as a standalone lightweight panel rendering engine to draw 2d panels on a lowcost computer/graphic card without 3d acceleration at reasonablel framerates. Patches for inclusion into the build system will follow.
86 lines
2.8 KiB
C++
86 lines
2.8 KiB
C++
// 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 (at your option) 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, write to the Free Software
|
|
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
//
|
|
#ifndef __FGFONTCACHE_HXX
|
|
#define __FGFONTCACHE_HXX
|
|
#include <simgear/misc/sg_path.hxx>
|
|
#include <simgear/props/props.hxx>
|
|
#include <plib/pu.h>
|
|
/**
|
|
* A class to keep all fonts available for future use.
|
|
* This also assures a font isn't resident more than once.
|
|
*/
|
|
class FGFontCache {
|
|
private:
|
|
// The parameters of a request to the cache.
|
|
struct FntParams
|
|
{
|
|
const std::string name;
|
|
const float size;
|
|
const float slant;
|
|
FntParams() : size(0.0f), slant(0.0f) {}
|
|
FntParams(const FntParams& rhs)
|
|
: name(rhs.name), size(rhs.size), slant(rhs.slant)
|
|
{
|
|
}
|
|
FntParams(const std::string& name_, float size_, float slant_)
|
|
: name(name_), size(size_), slant(slant_)
|
|
{
|
|
}
|
|
};
|
|
struct FntParamsLess
|
|
: public std::binary_function<const FntParams, const FntParams, bool>
|
|
{
|
|
bool operator() (const FntParams& f1, const FntParams& f2) const;
|
|
};
|
|
struct fnt {
|
|
fnt(puFont *pu = 0) : pufont(pu), texfont(0) {}
|
|
~fnt() { if (texfont) { delete pufont; delete texfont; } }
|
|
// Font used by plib GUI code
|
|
puFont *pufont;
|
|
// TXF font
|
|
fntTexFont *texfont;
|
|
};
|
|
// Path to the font directory
|
|
SGPath _path;
|
|
|
|
typedef map<const string, fntTexFont*> TexFontMap;
|
|
typedef map<const FntParams, fnt*, FntParamsLess> PuFontMap;
|
|
TexFontMap _texFonts;
|
|
PuFontMap _puFonts;
|
|
|
|
bool _initialized;
|
|
struct fnt *getfnt(const char *name, float size, float slant);
|
|
void init();
|
|
|
|
public:
|
|
FGFontCache();
|
|
~FGFontCache();
|
|
|
|
puFont *get(const char *name, float size=15.0, float slant=0.0);
|
|
puFont *get(SGPropertyNode *node);
|
|
|
|
fntTexFont *getTexFont(const char *name, float size=15.0, float slant=0.0);
|
|
|
|
SGPath getfntpath(const char *name);
|
|
/**
|
|
* Preload all the fonts in the FlightGear font directory. It is
|
|
* important to load the font textures early, with the proper
|
|
* graphics context current, so that no plib (or our own) code
|
|
* tries to load a font from disk when there's no current graphics
|
|
* context.
|
|
*/
|
|
bool initializeFonts();
|
|
};
|
|
#endif
|