OK,
here is tho code greg proposed. I made couple changes, but htey don't affect
this input behavior. The only change in the code is at the place where you
check for the key value. I found that the key value at the numberical keyboard
is 65456 for 0 and 65465 for 9 (65454 is for .). With this little change the
code allows the input and display it well in the widget, but when I send the
cmd as a arguement of some function I recieve some wrong characters instead of
the numbers(±ËÅ´µ¶·¸Ä
- this is the output of 123456789). I am using
VS2008 on XP.
Thanks, Tomas
#include <string.h>
#include <stdio.h>
#include <FL/Fl.H>
#include <FL/Fl_Double_Window.H>
#include <FL/Fl_Text_Editor.H>
//
// Simple terminal simulator (PROOF OF CONCEPT) -- 1.00 erco 07/30/2009
//
class MyTerminal : public Fl_Text_Editor {
Fl_Text_Buffer *buff;
int in, out;
char cmd[1024];
public:
MyTerminal(int X,int Y,int W,int H,const char* L=0) :
Fl_Text_Editor(X,Y,W,H,L) {
buff = new Fl_Text_Buffer();
buffer(buff);
textfont(FL_COURIER);
textsize(12);
in = out = 0;
cmd[0] = 0;
}
// Append to buffer, keep cursor at end
void append(const char*s) {
buff->append(s);
// Go to end of line
insert_position(buffer()->length());
scroll(count_lines(0, buffer()->length(), 1), 0);
}
int handle(int e) {
switch (e) {
case FL_KEYUP: {
int key = Fl::event_key();
if ( key == FL_Enter ) break;
//***CHANGE***
if ( key != FL_BackSpace && (key < ' ' || key > 0x7f)&& (key <
65454 || key > 65465) ) return(0);
if ( key == FL_BackSpace && cmd[0] == 0 ) return(0);
break;
}
case FL_KEYDOWN: {
int key = Fl::event_key();
// Enter key? Execute the command, clear command buffer
if ( key == FL_Enter ) {
fprintf(stderr, "EXECUTING: '%s'\n", cmd); // <-- EXECUTE
YOUR COMMANDS HERE
cmd[0] = 0;
break;
}
//***CHANGE***
if ( key != FL_BackSpace && (key < ' ' || key > 0x7f ) && (key
< 65454 || key > 65465) ) return(0);
if ( key == FL_BackSpace ) {
// Remove a character from end of command buffer
if ( cmd[0] ) {
cmd[strlen(cmd)-1] = 0;
break;
} else {
return(0);
}
} else {
if ( strlen(cmd) > sizeof(cmd)-2 ) return(0);
// Append text to our 'command' buffer
int i = strlen(cmd);
cmd[i+0] = (char)key;
cmd[i+1] = 0;
}
break;
}
}
return(Fl_Text_Editor::handle(e));
}
};
int main() {
Fl_Double_Window win(620,520,"Terminal Test");
MyTerminal edit(10,10,win.w()-20,win.h()-20);
edit.append("Line one\nLine Two\nHere is your prompt: ");
win.resizable(win);
win.show();
return(Fl::run());
}
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