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10248 changed files with 63654 additions and 6775 deletions
95
Task/User-input-Graphical/XPL0/user-input-graphical.xpl0
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95
Task/User-input-Graphical/XPL0/user-input-graphical.xpl0
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\12345678901234567890123456789012345
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\User input/Graphical.......... X .
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\ Please enter a string and 75000: .
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\ String: Hello, World!___ .
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\ Number: 75000___________ .
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def X0=20, Y0=10; \upper-left corner of window's position (chars)
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def StrMax = 16; \maximum number of characters in strings
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char String(2, StrMax); \string arrays (includes Number string)
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int StrInx(2); \index to character to be added to String
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int Mouse, Button, C, I, SN;
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func GetButton; \Return soft button number at mouse pointer
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int X, Y;
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[Mouse:= GetMouse;
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X:= Mouse(0)/8 - X0; \convert pixels to char cells
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Y:= Mouse(1)/16 - Y0;
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if X>=32 & X<=34 & Y=0 then return 0; \exit [X]
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if X>=10 & X<=10+StrMax & Y=4 then return 1; \line 1
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if X>=10 & X<=10+StrMax & Y=6 then return 2; \line 2
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return -1; \mouse not on any soft button
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];
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proc ShowCursor(Flag); \Turn cursor at insertion point on or off
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int Flag;
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[Cursor(10+StrInx(SN)+X0, 4+SN*2+Y0);
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ChOut(6, if Flag then ^_ else ^ );
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];
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[SetVid($12); \640x480 graphics
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TrapC(true); \disable Ctrl+C
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Attrib($70); \black on gray
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SetWind(0+X0, 0+Y0, 35+X0, 8+Y0, 0, \fill\true);
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Cursor(33+X0, 0+Y0); Text(6, "X");
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Cursor(2+X0, 2+Y0); Text(6, "Please enter a string and 75000:");
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Cursor(2+X0, 4+Y0); Text(6, "String:");
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Cursor(2+X0, 6+Y0); Text(6, "Number:");
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Attrib($1F); \bright white on blue, for title
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Cursor(0+X0, 0+Y0); Text(6, " User input/Graphical ");
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Attrib($F0); \black on bright white
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for SN:= 0 to 1 do \initialize Strings
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[StrInx(SN):= 0;
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Cursor(10+X0, 4+SN*2+Y0);
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for I:= 0 to StrMax-1 do
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[String(SN, I):= $20; ChOut(6, ^ )];
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];
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SN:= 0; \select first, topmost String
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ShowCursor(true);
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ShowMouse(true);
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loop [MoveMouse; \make pointer track mouse movements
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Mouse:= GetMouse;
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if Mouse(2) then \a left or right mouse button is down
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[Button:= GetButton; \get soft button at mouse pointer
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while Mouse(2) do \wait for mouse button's release
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[MoveMouse;
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Mouse:= GetMouse;
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];
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if Button = GetButton then \if down Button = release button
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[if Button = 0 then quit;
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if Button # -1 then \move cursor to active String
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[ShowCursor(false);
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SN:= Button-1;
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ShowCursor(true);
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];
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];
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];
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if KeyHit then
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[ShowMouse(false); \don't overwrite mouse pointer
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C:= ChIn(1); \get character from non-echoed keyboard
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if SN = 0 and C >= $20 and C <= $7E or \all printable ASCIIs
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SN = 1 and C >= $30 and C <= $39 then \only numeric digits
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[String(SN, StrInx(SN)):= C;
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if StrInx(SN) < StrMax-1 then StrInx(SN):= StrInx(SN)+1;
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]
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else if C = \BS\$08 then \delete back a character
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[ShowCursor(false);
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if StrInx(SN) > 0 then StrInx(SN):= StrInx(SN)-1;
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]
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else if C = \tab\$09 then \select next string
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[ShowCursor(false);
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SN:= rem((SN+1)/2);
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]
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else if C = \Esc\$1B then quit;
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Cursor(10+X0, 4+SN*2+Y0); \show active String
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for I:= 0 to StrInx(SN)-1 do ChOut(6, String(SN, I));
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ChOut(6, ^_);
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ShowMouse(true);
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];
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];
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SetVid(3); \restore normal text mode immediately
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]
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