116 lines
5.6 KiB
C
116 lines
5.6 KiB
C
/***********************************************************************/
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/* */
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/* Objective Caml */
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/* */
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/* Developed by Jacob Navia. */
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/* Copyright 2001 Institut National de Recherche en Informatique et */
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/* en Automatique. All rights reserved. This file is distributed */
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/* under the terms of the GNU Library General Public License, with */
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/* the special exception on linking described in file ../LICENSE. */
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/* */
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/***********************************************************************/
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/* $Id$ */
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/*------------------------------------------------------------------------
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Module: D:\lcc\inria\inria.h
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Author: Jacob
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Project:
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State:
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Creation Date: June 2001
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Description: The user interface works as follows:
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1: At startup it will look for the path to the
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ocaml interpreter in the registry using the
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key HKEY_CURRENT_USER\SOFTWARE\ocaml. If not
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found will prompt the user.
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2: It will start the ocaml interpreter with
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its standard output and standard input
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connected to two pipes in a dedicated thread.
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3: It will open a window containing an edit
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field. The output from the interpreter will be
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shown in the edit field, and the input of the
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user in the edit field will be sent to the
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interpreter when the user types return.
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4: Line editing is provided by moving to the
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desired line with the arrows, then pressing
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return; If we aren't in the last input line,
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the input will be copied to the last line and
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sent to the interpreter.
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5: The GUI ensures that when we exit the ocaml
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interpreter is stopped by sending the
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character string "#quit;;\nCtrl-Z"
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6: A history of all lines sent to the interpreter
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is maintained in a simple linked list. The
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History dialog box shows that, and allows the
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user to choose a given input line.
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7: Memory limits. The edit buffer can be of an
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arbitrary length, i.e. maybe 7-8MB or more,
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there are no fixed limits. The History list
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will always grow too, so memory consumption
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could be "high" after several days of
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uninterrupted typing at the keyboard. For that
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cases it is recommended to stop the GUI and
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get some sleep...
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9: The GUI will start a timer, looking 4 times a
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second if the interpreter has written
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something in the pipe. This is enough for most
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applications.
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------------------------------------------------------------------------*/
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#include <windows.h>
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// In this structure should go eventually all global variables scattered
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// through the program.
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typedef struct _programParams {
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HFONT hFont; // The handle of the current font
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COLORREF TextColor; // The text color
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char CurrentWorkingDir[MAX_PATH];// The current directory
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} PROGRAM_PARAMS;
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//**************** Global variables ***********************
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extern PROGRAM_PARAMS ProgramParams;
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extern COLORREF BackColor; // The background color
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extern HBRUSH BackgroundBrush; // A brush built with the background color
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extern char LibDir[]; // The lib directory
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extern char OcamlPath[]; // The Path to ocaml.exe
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extern HANDLE hInst; // The instance handle for this application
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extern HWND hwndSession; // The current session window handle
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extern LOGFONT CurrentFont; // The current font characteristics
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extern HWND hwndMain,hwndMDIClient; // Window handles of frame and mdi window
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// ***************** Function prototypes ******************
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int WriteToPipe(char *data); // Writes to the pipe
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int ReadFromPipe(char *data,int len);// Reads from the pipe
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int AskYesOrNo(char *msg); //Ditto!
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int BrowseForFile(char *fname,char *path);
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void GotoEOF(void); // Positions the cursor at the end of the text
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void ShowDbgMsg(char *msg); // Shows an error message
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void HandleCommand(HWND hwnd, WPARAM wParam,LPARAM lParam);
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int GetOcamlPath(void); // Finds where ocaml.exe is
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void ForceRepaint(void); // Ditto.
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void AddLineToControl(char *buf);
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char *GetHistoryLine(int n); // Gets the nth history line base 1.
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int StartOcaml(void);
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// **************** User defined window messages *************
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#define WM_NEWLINE (WM_USER+6000)
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#define WM_TIMERTICK (WM_USER+6001)
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#define WM_QUITOCAML (WM_USER+6002)
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// ********************** Structures ***********************
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typedef struct tagPosition {
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int line;
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int col;
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} POSITION;
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// Simple linked list for holding the history lines
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typedef struct tagHistory {
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struct tagHistory *Next;
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char *Text;
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} HISTORYLINE;
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extern void *SafeMalloc(int);
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extern HISTORYLINE *History; // The root of the history lines
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#define IDEDITCONTROL 15432
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