mirror of
https://github.com/byteworksinc/ORCA-C.git
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375 lines
9.4 KiB
C++
375 lines
9.4 KiB
C++
/****************************************************************
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*
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* MiniCAD
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*
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* MiniCAD is a (very) simple CAD program based on the Frame
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* program. With MiniCAD, you can open new windows, close
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* windows that are on the desktop, and draw lines using the
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* mouse. Multiple windows are supported.
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*
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* Mike Westerfield
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*
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* Copyright 1989
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* Byte Works, Inc.
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*
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****************************************************************/
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#pragma keep "MiniCAD"
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#pragma lint -1
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#include <orca.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <types.h>
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#include <quickdraw.h>
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#include <misctool.h>
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#include <event.h>
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#include <control.h>
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#include <window.h>
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#include <menu.h>
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#include <desk.h>
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#include <lineedit.h>
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#include <dialog.h>
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#define apple_About 257 /* Menu ID #s */
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#define file_Quit 256
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#define file_New 258
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#define file_Close 255
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#define maxWindows 4 /* max # of drawing windows */
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#define maxLines 50 /* max # of lines in a window */
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typedef int BOOL; /* simulate boolean types */
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typedef struct { Point p1, p2; } lineRecord; /* line defined by its endpts */
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/* holds info about 1 window */
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struct windowRecord { GrafPortPtr wPtr; /* ptr to the window's port */
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char *name; /* name of the window */
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int numLines; /* # lines in this window */
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lineRecord lines [maxLines]; /* lines in drawing */
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};
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enum alertKind {norml, stop, note, caution}; /* kinds of alerts */
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BOOL done; /* tells if the program should stop */
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WmTaskRec lastEvent; /* last event returned in event loop */
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static struct windowRecord windows [maxWindows] = /* drawing windows */
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{ { NULL, "\pPaint 1" }, { NULL, "\pPaint 2" },
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{ NULL, "\pPaint 3" }, { NULL, "\pPaint 4" } };
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static ParamList wParms = /* parameters for NewWindow */
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{ 78, 0xDDA7, NULL, 0, 0, 615, 25, 188, NULL, 0, 0, 0, 0, 0, 0, 10, 10,
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0, 0, 0, 0, NULL, NULL, NULL, 25, 0, 188, 615, NULL, NULL };
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static ItemTemplate button = /* button item */
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{ 1, 36, 15, 0, 0, buttonItem, "\pOK", 0, 0, NULL };
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static ItemTemplate message = /* message item */
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{ 100, 5, 100, 90, 280, itemDisable+statText, NULL, 0, 0, NULL };
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static AlertTemplate alertRec = /* alert box */
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{ 50, 180, 107, 460, 2, 0x80, 0x80, 0x80, 0x80, NULL, NULL, NULL };
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/****************************************************************
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*
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* DoAlert - Create an alert box
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*
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* Input:
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* kind - kind of alert
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* msg - alert message
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*
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****************************************************************/
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void DoAlert (enum alertKind kind, char *msg)
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{
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SetForeColor (0); /* set text colors */
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SetBackColor (15);
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message.itemDescr = msg; /* init. non-constant */
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alertRec.atItemList [0] = (ItemTempPtr) &button; /* template fields */
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alertRec.atItemList [1] = (ItemTempPtr) &message;
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switch (kind) {
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case norml: Alert (&alertRec, NULL);
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break;
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case stop: StopAlert (&alertRec, NULL);
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break;
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case note: NoteAlert (&alertRec, NULL);
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break;
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case caution: CautionAlert (&alertRec, NULL);
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break;
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default: printf ("Error in DoAlert\n");
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exit (-1);
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break;
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}
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}
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#pragma databank 1
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/****************************************************************
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*
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* DrawWindow - Draw the contents of the current window
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*
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****************************************************************/
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void DrawWindow (void)
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{
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int i; /* window's index */
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int j; /* loop variable */
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struct windowRecord *wp; /* work pointers */
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lineRecord *lp;
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i = GetWRefCon (GetPort());
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if (windows [i].numLines) { /* skip the work if there */
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/* aren't any lines */
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SetPenMode (modeCopy); /* set up to draw */
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SetSolidPenPat (0);
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SetPenSize (2, 1);
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wp = &windows [i]; /* draw each of the lines */
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for (j = 0; j < wp->numLines; ++j) {
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lp = &(wp->lines [j]);
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MoveTo (lp->p1.h, lp->p1.v);
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LineTo (lp->p2.h, lp->p2.v);
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}
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}
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}
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#pragma databank 0
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/****************************************************************
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*
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* DoClose - Close the front drawing window, if there is one
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*
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****************************************************************/
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void DoClose (void)
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{
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int i;
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if (FrontWindow () != NULL) {
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i = GetWRefCon (FrontWindow ());
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CloseWindow (windows [i].wPtr);
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windows [i].wPtr = NULL;
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EnableMItem (file_New);
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}
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}
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/****************************************************************
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*
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* MenuAbout - Create the About alert box
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*
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****************************************************************/
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void MenuAbout (void)
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{
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DoAlert (note, "\pMini-CAD 1.0\r"
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"Copyright 1989\r"
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"Byte Works, Inc.\r\r"
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"By Mike Westerfield");
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}
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/****************************************************************
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*
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* DoNew - Open a new drawing window
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*
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****************************************************************/
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void DoNew (void)
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{
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int i; /* index variable */
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i = 0; /* find an empty record */
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while (windows[i].wPtr != NULL)
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++i;
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windows[i].numLines = 0; /* no lines drawn yet */
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wParms.wTitle = (Pointer) windows[i].name; /* init. non-constant */
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wParms.wRefCon = i; /* wParms fields */
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wParms.wContDefProc = (VoidProcPtr) DrawWindow;
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wParms.wPlane = (GrafPortPtr) topMost;
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windows[i].wPtr = NewWindow (&wParms); /* open the window */
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if (toolerror()) {
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DoAlert (stop, "\pError opening the window.");
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windows [i].wPtr = NULL;
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}
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else if (i == 3) /* don't allow more than 4 open windows */
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DisableMItem (file_New);
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}
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/****************************************************************
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*
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* HandleMenu - Handle a menu selection
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*
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****************************************************************/
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void HandleMenu (int menuNum)
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{
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switch (menuNum) {
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case apple_About: MenuAbout();
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break;
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case file_Quit: done = TRUE;
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break;
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case file_New: DoNew ();
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break;
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case file_Close: DoClose ();
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}
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HiliteMenu (FALSE, (int) (lastEvent.wmTaskData >> 16));
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}
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/****************************************************************
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*
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* InitMenus - Initialize the menu bar
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*
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****************************************************************/
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void InitMenus (void)
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{
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InsertMenu (NewMenu (">> Edit \\N3\r" /* create the edit menu */
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"--Undo\\N250V*Zz\r"
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"--Cut\\N251*Xx\r"
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"--Copy\\N252*Cc\r"
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"--Paste\\N253*Vv\r"
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"--Clear\\N254\r"
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".\r"), 0);
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InsertMenu (NewMenu (">> File \\N2\r" /* create the file menu */
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"--New\\N258*Nn\r"
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"--Close\\N255V\r"
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"--Quit\\N256*Qq\r"
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".\r"), 0);
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InsertMenu (NewMenu (">>@\\XN1\r" /* create the Apple menu */
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"--About...\\N257V\r"
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".\r"), 0);
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FixAppleMenu (1); /* add desk accessories */
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FixMenuBar (); /* draw the completed menu bar */
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DrawMenuBar ();
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}
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/****************************************************************
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*
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* Sketch - Track the mouse, drawing lines to connect the points
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*
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****************************************************************/
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void Sketch (void)
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{
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Point endPoint; /* the end point of the line */
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Point firstPoint; /* the initial point */
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int i; /* window index */
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int numLines; /* copy of windows [i].numLines */
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EventRecord sEvent; /* last event returned in event loop */
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/* get the window's index */
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i = GetWRefCon (FrontWindow());
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/* check for too many lines */
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if (windows [i].numLines == maxLines)
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DoAlert (stop, "\pThe window is full -\rmore lines cannot be\radded.");
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else {
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/* initialize the pen */
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StartDrawing (FrontWindow());
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SetSolidPenPat (15);
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SetPenSize (2, 1);
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SetPenMode (modeXOR);
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/* record the initial pen location */
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firstPoint = lastEvent.where;
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GlobalToLocal (&firstPoint);
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MoveTo (firstPoint.h, firstPoint.v);
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LineTo (firstPoint.h, firstPoint.v);
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endPoint = firstPoint;
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/* follow the pen, rubber-banding the line */
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while (!GetNextEvent (mUpMask, &sEvent)) {
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GlobalToLocal (&sEvent.where);
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if ((endPoint.h != sEvent.where.h) || (endPoint.v != sEvent.where.v)) {
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MoveTo (firstPoint.h, firstPoint.v);
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LineTo (endPoint.h, endPoint.v);
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MoveTo (firstPoint.h, firstPoint.v);
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LineTo (sEvent.where.h, sEvent.where.v);
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endPoint.h = sEvent.where.h;
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endPoint.v = sEvent.where.v;
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}
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}
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/* erase the last XORed line */
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MoveTo (firstPoint.h, firstPoint.v);
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LineTo (endPoint.h, endPoint.v);
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/* if we have a line (not a point), record it in window's line list */
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if ((firstPoint.h != endPoint.h) || (firstPoint.v != endPoint.v)) {
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numLines = windows[i].numLines++;
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windows [i].lines [numLines].p1 = firstPoint;
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windows [i].lines [numLines].p2 = endPoint;
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SetPenMode (modeCopy);
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SetSolidPenPat (0);
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MoveTo (firstPoint.h, firstPoint.v);
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LineTo (endPoint.h, endPoint.v);
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}
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}
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}
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/****************************************************************
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*
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* Program begins here
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*
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****************************************************************/
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int main (void)
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{
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int event; /* event #; returned by TaskMaster */
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startdesk (640);
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InitMenus (); /* set up the menu bar */
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lastEvent.wmTaskMask = 0x1FFFL; /* let task master do most stuff */
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ShowCursor (); /* show the cursor */
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done = FALSE; /* main event loop */
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do {
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event = TaskMaster (0x076E, &lastEvent);
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switch (event) { /* handle the events we need to */
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case wInSpecial:
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case wInMenuBar: HandleMenu ((int) lastEvent.wmTaskData);
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break;
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case wInGoAway : DoClose ();
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break;
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case wInContent: Sketch ();
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}
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}
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while (!done);
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enddesk ();
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return 0;
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}
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