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 *      wxGlobals.h       wx logo global references module           
 *      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 3 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
 *      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, see <https://www.gnu.org/licenses/>.

#define SCREEN_WIDTH		1
#define SCREEN_HEIGHT		2
#define	BACK_GROUND			3
#define	X_COORD				6
#define	Y_COORD				7
#define X_MAX				8
#define Y_MAX				9
#define EDIT_STATE   	    10

// used for the text editor flag
#define NO_INFO 0
#define DO_LOAD	1
#define NO_LOAD 2

//terminal size in characters
#define TERM_ROWS 25
#define TERM_COLS 82

// fonts
extern "C" char wx_font_face[];
extern "C" int wx_font_size;	
extern "C" int label_height;
#define FONT_CFG(fm,sz) sz, wxFONTFAMILY_MODERN, wxFONTSTYLE_NORMAL, wxFONTWEIGHT_NORMAL, false, wxString(fm,wxConvUTF8)

/* wxMain */
#define NAME_BUFFER_SIZE 300
#define MAXOUTBUFF 4096
#define MAXINBUFF 4096

#define BUFF_LEN 4096  //should be a power of two.

#define buff_empty (buff_push_index == buff_pop_index)

#define buff_push(c) buff[buff_push_index++] = c; \
                     buff_push_index = buff_push_index % BUFF_LEN; \
                     if(buff_push_index == buff_pop_index) { \
                       fprintf(stderr, "buff push warning: pushindex = popindex\n. discarding last push"); \
                       buff_push_index = (buff_push_index - 1) % BUFF_LEN; \

#define buff_pop(c)  c = buff[buff_pop_index++]; \
                     buff_pop_index = buff_pop_index % BUFF_LEN
extern char buff[];
extern int buff_push_index;
extern int buff_pop_index;
extern int alreadyAlerted;

extern char output_buffer[];
extern int output_index;

/* wxTerminal */
class TurtleCanvas;
class TextEditor;
extern wxCommandEvent * haveInputEvent;
extern LogoFrame *logoFrame;
extern LogoEventManager *logoEventManager;
extern wxMenuBar* menuBar;
extern wxBoxSizer *topsizer;
extern TextEditor *editWindow;
extern TurtleCanvas * turtleGraphics; 

/* wxTurtleGraphics */
// the size of the turtle graphics window
extern "C" int getInfo(int);
extern "C" void setInfo(int, int);
extern wxMemoryDC *m_memDC;

/* wxTextEdit */
extern char * file; // using this is safe because the other thread is sleeping
					// and it stack is also asleep
extern "C" int check_wx_stop(int force_yield, int pause_return_value);
extern "C" int internal_check();

#define wxdprintf if (wx_Debugging) printf

extern int wx_Debugging;	/* in wxMain */
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