#include <simgear/compiler.h> // for SG_USING_STD
#include <simgear/props/props.hxx>
#include <simgear/structure/subsystem_mgr.hxx>
+#include <simgear/misc/sg_path.hxx>
+#include <functional>
#include <vector>
-SG_USING_STD(vector);
-
#include <map>
-SG_USING_STD(map);
+
+using std::vector;
+using std::map;
+using std::string;
#include <Main/fg_props.hxx>
+class SGBinding;
+
class FGMenuBar;
class FGDialog;
-class FGBinding;
class FGColor;
+class FGFontCache;
/**
virtual void init ();
/**
- * Reinitialize the GUI subsystem.
+ * Reinitialize the GUI subsystem. Reloads all XML dialogs.
*/
virtual void reinit ();
*/
virtual void update (double delta_time_sec);
+ /**
+ * Redraw the GUI picking up new GUI colors.
+ */
+ virtual void redraw ();
+
/**
* Creates a new dialog box, using the same property format as the
* gui/dialogs configuration files. Does not display the
*/
virtual bool closeDialog (const string &name);
+ /**
+ * Get dialog property tree's root node.
+ * @param name The name of the dialog box.
+ * @return node pointer if the dialog was found, zero otherwise.
+ */
+ virtual SGPropertyNode_ptr getDialogProperties (const string &name);
+
/**
* Return a pointer to the current menubar.
*/
virtual FGMenuBar * getMenuBar ();
-
/**
* Ignore this method.
*
*/
virtual FGDialog * getActiveDialog ();
- virtual const FGColor& getColor (const char * which) { return _colors[which]; }
- virtual const FGColor& getColor (string which) { return _colors[which.c_str()]; }
- virtual puFont *getDefaultFont() { return &_font; }
+ /**
+ * Get the named dialog if active.
+ *
+ * @return The named dialog, or 0 if it isn't active.
+ */
+ virtual FGDialog * getDialog (const string &name);
+
+
+ virtual FGColor *getColor (const char * name) const {
+ _citt_t it = _colors.find(name);
+ return (it != _colors.end()) ? it->second : NULL;
+ }
+ virtual FGColor *getColor (const string &name) const {
+ _citt_t it = _colors.find(name.c_str());
+ return (it != _colors.end()) ? it->second : NULL;
+ }
+
+ virtual puFont *getDefaultFont() { return _font; }
+
protected:
virtual void setMenuBarVisible (bool visible);
virtual void setStyle ();
- virtual void setupFont ();
+ virtual void setupFont (SGPropertyNode *);
+
+ /**
+ * Used by reinit() and redraw() to close all dialogs and to apply
+ * current GUI colors. If "reload" is false, reopens all dialogs.
+ * Otherwise reloads all XML dialog files from disk and reopens all
+ * but Nasal * generated dialogs, omitting dynamic widgets. (This
+ * is only useful for GUI development.)
+ */
+ virtual void reset (bool reload);
private:
- fntTexFont _tex_font;
- puFont _font;
- map<string,FGColor> _colors;
+ struct ltstr
+ {
+ bool operator()(const char* s1, const char* s2) const {
+ return strcmp(s1, s2) < 0;
+ }
+ };
- // Free all allocated memory.
- void clear ();
+ puFont *_font;
+ map<const char*,FGColor*, ltstr> _colors;
+ typedef map<const char*,FGColor*, ltstr>::iterator _itt_t;
+ typedef map<const char*,FGColor*, ltstr>::const_iterator _citt_t;
+
+ void clear_colors();
// Read all the configuration files in a directory.
void readDir (const char * path);
FGColor() { clear(); }
FGColor(float r, float g, float b, float a = 1.0f) { set(r, g, b, a); }
FGColor(const SGPropertyNode *prop) { set(prop); }
-
- FGColor& operator=(const FGColor& c) {
- _red = c._red;
- _green = c._green;
- _blue = c._blue;
- _alpha = c._alpha;
- return *this;
+ FGColor(FGColor *c) {
+ if (c) set(c->_red, c->_green, c->_blue, c->_alpha);
}
inline void clear() { _red = _green = _blue = _alpha = -1.0f; }
// merges in non-negative components from property with children <red> etc.
bool merge(const SGPropertyNode *prop);
- bool merge(const FGColor& color);
+ bool merge(const FGColor *color);
bool set(const SGPropertyNode *prop) { clear(); return merge(prop); };
- bool set(const FGColor& color) { clear(); return merge(color); }
+ bool set(const FGColor *color) { clear(); return merge(color); }
bool set(float r, float g, float b, float a = 1.0f) {
_red = r, _green = g, _blue = b, _alpha = a;
return true;
bool isValid() const {
return _red >= 0.0 && _green >= 0.0 && _blue >= 0.0;
}
- void print() const {
- std::cerr << "red=" << _red << ", green=" << _green
- << ", blue=" << _blue << ", alpha=" << _alpha << std::endl;
- }
+ void print() const;
inline void setRed(float red) { _red = red; }
inline void setGreen(float green) { _green = green; }
};
+
+/**
+ * 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 // __NEW_GUI_HXX
projects / flightgear.git / blobdiff