World of A1200/World_Of_A1200.iso/programs/workbench/stickit2/source.lha/source/notemenus.c

C/C++ Source or Header | 1995-01-10 | 4.6 KB | 242 lines

/**************************************************
 **************    notemenus.c   ******************
 **************************************************/

#define INTUI_V36_NAMES_ONLY

#include <exec/types.h>
#include <exec/memory.h>
#include <libraries/iffparse.h>
#include <libraries/gadtools.h>

#include <clib/iffparse_protos.h>

#include <stdio.h>        /* for printf */
#include <string.h>

#include "stickit2.h"

#include "consts.h"
#include "structs.h"
#include "proto.h"

#define ID_FTXT        MAKE_ID('F','T','X','T')
#define ID_CHRS        MAKE_ID('C','H','R','S')

extern prj_p prj;

/*
Function : BOOL notemenu_editcopy(note_p curr_note)
Puporse : Copy the current note's text into the clipboard. Returns TRUE if
    sucessful, FALSE otherwise.
*/

BOOL notemenu_editcopy(note_p curr_note)
{
    struct IFFHandle *iffhandle = NULL;

    char errmsg[STRLEN_ERRMSG];

    long errno = 0;
    int textlen;

    /* Is it a valid note ? */

    if (!curr_note)
        return (FALSE);

    /* Allocate IFF structure */

    iffhandle = AllocIFF();

    if (!iffhandle) {
        error("Can't allocate clipboard structure",ERR_WARNING,__LINE__,
__FILE__);
        return (FALSE);
    }

    /* Set up IFF_File for clipboard IO */

    iffhandle->iff_Stream = (ULONG)OpenClipboard(prj->prefs.clipunit);

    if (!iffhandle) {
        sprintf(errmsg,"Can't open clipboard unit %ul",
prj->prefs.clipunit);
        error(errmsg,ERR_WARNING,__LINE__,__FILE__);

        FreeIFF(iffhandle);

        return(FALSE);
    }

    InitIFFasClip(iffhandle);

    /* Start the write to the clipboard */

    if (OpenIFF(iffhandle,IFFF_WRITE)) {
        error("Can't write to clipboard unit",ERR_WARNING,__LINE__,
__FILE__);

        CloseClipboard((struct ClipboardHandle *)iffhandle->iff_Stream);
        FreeIFF(iffhandle);

        return(FALSE);
    }

    /* Write the data out */

    if (!(errno = PushChunk(iffhandle,ID_FTXT,ID_FORM,IFFSIZE_UNKNOWN))) {
        if (!(errno = PushChunk(iffhandle,0,ID_CHRS,IFFSIZE_UNKNOWN))) {
            textlen = strlen(curr_note->text);

            if (WriteChunkBytes(iffhandle,curr_note->text,textlen)!=
textlen) {
                error("Can't write text to clipboard",
ERR_WARNING,__LINE__,__FILE__);

                errno = IFFERR_WRITE;
            }
        }

        if (!errno)
            errno = PopChunk(iffhandle);
    }

    if (!errno)
        errno = PopChunk(iffhandle);

    /* Free resources */

    CloseIFF(iffhandle);

    CloseClipboard((struct ClipboardHandle *)iffhandle->iff_Stream);

    /* Finally, free iffhandle */

    FreeIFF(iffhandle);

    if (errno)
        return (FALSE);
    else
        return (TRUE);
}

/*
Function : void notemenu_editpaste(note_p curr_note)
Puporse : Copy the current note's from the clipboard into the current cursor
    position.
*/

void notemenu_editpaste(note_p curr_note)
{
    struct IFFHandle *iffhandle = NULL;
    struct ContextNode *contextnode = NULL;

    char errmsg[STRLEN_ERRMSG];
    char pastebuffer[STRLEN_NOTETEXT];

    long errno = 0;
    int textlen;
    int l;

    /* Is it a valid note with carat ? */

    if (!curr_note)
        return;

    if (!curr_note->carat.text)
        return;

    /* Allocate IFF structure */

    iffhandle = AllocIFF();

    if (!iffhandle) {
        error("Can't allocate clipboard structure",ERR_WARNING,__LINE__,
__FILE__);
        return;
    }

    /* Set up IFF_File for clipboard IO */

    iffhandle->iff_Stream = (ULONG)OpenClipboard(prj->prefs.clipunit);

    if (!iffhandle) {
        sprintf(errmsg,"Can't open clipboard unit %ul",
prj->prefs.clipunit);
        error(errmsg,ERR_WARNING,__LINE__,__FILE__);

        FreeIFF(iffhandle);

        return;
    }

    InitIFFasClip(iffhandle);

    /* Start the write to the clipboard */

    if (OpenIFF(iffhandle,IFFF_READ)) {
        error("Can't read from clipboard unit",ERR_WARNING,__LINE__,
__FILE__);

        CloseClipboard((struct ClipboardHandle *)iffhandle->iff_Stream);
        FreeIFF(iffhandle);

        return;
    }

    /* If can't find right chunk */

    if (StopChunk(iffhandle,ID_FTXT,ID_CHRS)) {
        CloseClipboard((struct ClipboardHandle *)iffhandle->iff_Stream);
        FreeIFF(iffhandle);

        return;
    }

    while (TRUE) {
        errno = ParseIFF(iffhandle,IFFPARSE_SCAN);

        if (errno == IFFERR_EOC)
            continue;        /* enter next context */
        else if (errno)
            break;

        contextnode = CurrentChunk(iffhandle);

        if ((contextnode) && (contextnode->cn_Type == ID_FTXT) &&
(contextnode->cn_ID)) {
            while ((textlen = ReadChunkBytes(iffhandle,pastebuffer,
STRLEN_NOTETEXT)) > 0) {
                pastebuffer[textlen] = '\0';

                for (l = 0; l < textlen; l++)
                    carat_addachar(curr_note,(char)
((pastebuffer[l] == '\012')?' ':pastebuffer[l]),FALSE);
            }

            if (textlen < 0)
                errno = textlen;
        }
    }

    /* Refresh the note */

    carat_from_ptr(curr_note,PTRCHANGE_CLICK);
    note_refresh(curr_note);

    /* Free resources */

    CloseIFF(iffhandle);

    CloseClipboard((struct ClipboardHandle *)iffhandle->iff_Stream);

    /* Finally, free iffhandle */

    FreeIFF(iffhandle);

    /* The note text has probably been changed */

    prj->projectchanged = TRUE;
}