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- /***********************************************************************
- * palette.c
- * This program is useful for designing color palettes.
- * It may be used stand-alone (I would be setting the 'default map',
- * if preferences had a complete color map...), or you can use it
- * as a subroutine with minor modifications.
- * One of the unique features of this program is that it prints
- * the hex value of the selected color, so you use it to generate
- * numeric values for use in programs.
- * (c) 1985 by Charlie Heath of Microsmiths, this program is in
- * the public domain. Not to be used commercially without permission
- * from MicroSmiths.
- ***********************************************************************/
-
- #define I_REV 29
- #define G_REV 29
-
- #define FAST register /* Register type variable */
-
- #define DPTH 2 /* Raster dimensions */
- #define WDTH 640
- #define HGHT 200
-
- #define BCOL 1 /* Background color for menus, etc */
-
- #define CTSIZ 4 /* In spite of myself, color table size */
-
- /**** Variables Initialized by init_colors() **********/
- struct ColorMap *p_Co;
- USHORT *p_ct; /* Color table as words */
- extern struct ViewPort *vp;
- USHORT default_color[CTSIZ]; /* Save a copy of the defaults */
-
-
- init_colors()
- {
- FAST int i;
-
- p_Co = (struct ColorMap *)GetColorMap(CTSIZ);
- p_ct = (USHORT *)p_Co->ColorTable;
-
- for ( i=0; i<CTSIZ; i++)
- default_color[i] = p_ct[i];
- default_color[0] = 0x0a0; default_color[1] = 0x98b;
- default_color[2] = 0x002; default_color[3] = 0xf80;
- set_defmap();
- }
-
- clear_colors()
- {
- FreeColorMap(p_Co);
- }
-
-
- /****************************************************************
- * set_defmap()
- * This routine sets up a 'default' color map. It assumes
- * you have initialized the variable p_ct to point to a color
- * table, and that default_color has the colors you want. */
- set_defmap()
- {
- FAST int i;
-
- for (i=0; i<CTSIZ ; i++)
- *(p_ct+i) = default_color[i];
-
- set_cmap();
- }
-
-
-
- /****************************************************************
- * set_cmap()
- * This routine loads an updated p_ct color table into the
- * viewport. You must have initialized the variables p_ct and
- * vp to point at color table and ViewPort */
- set_cmap()
- {
- LoadRGB4(vp,p_ct,CTSIZ);
- }
-
-
- /*** palette modifier routines follow ************************/
-
- #define PLX 200 /* Palette Window Size */
- #define PLY 132
-
- #define PGAD 0 /* You can offset the gadgets here */
- #define PGHI PGAD+CTSIZ /* Offset frm color selectors */
-
- struct IntuiText rtxt = {2,2,JAM1,-9,2,NL,(UBYTE *)"R",NL};
- struct IntuiText gtxt = {2,2,JAM1,-9,2,NL,(UBYTE *)"G",NL};
- struct IntuiText btxt = {2,2,JAM1,-9,2,NL,(UBYTE *)"B",NL};
-
- struct Image r_img, g_img, b_img;
- struct PropInfo r_prop,g_prop,b_prop;
-
- struct Gadget blue_gad = {
- NL, 17,112, 90,11, GADGHCOMP, GADGIMMEDIATE | RELVERIFY,
- PROPGADGET,(APTR)&b_img, NL,
- &btxt, NL,(APTR)&b_prop, PGHI+3, NL };
-
- struct Gadget green_gad = {
- &blue_gad, 17,97, 90,11, GADGHCOMP, GADGIMMEDIATE | RELVERIFY,
- PROPGADGET,(APTR)&g_img, NL,
- >xt, NL,(APTR)&g_prop, PGHI+4, NL };
-
- struct Gadget red_gad = {
- &green_gad, 17,82, 90,11, GADGHCOMP, GADGIMMEDIATE | RELVERIFY,
- PROPGADGET,(APTR)&r_img, NL,
- &rtxt, NL,(APTR)&r_prop, PGHI+5, NL };
-
- struct IntuiText oktxt = {3,2,JAM2,8,2,NL,(UBYTE *)" OK ",NL};
- struct IntuiText cntxt = {3,2,JAM2,0,2,NL,(UBYTE *)"Cancel",NL};
- struct IntuiText retxt = {3,2,JAM2,4,2,NL,(UBYTE *)"Reset",NL};
-
- struct IntuiText mstxt={2,2,JAM1,0,0,NL,(UBYTE *)"MicroSmiths Palette",NL};
-
- char frog[] = "hex";
- struct IntuiText hxtxt = {3,2,JAM2,136,31,NL,(UBYTE *)frog,NL};
-
- struct Gadget re_gad = {
- &red_gad, 110,112, 54,11, GADGHCOMP, RELVERIFY,
- BOOLGADGET, NL, NL,
- &retxt, NL,NL, PGHI+2, NL };
- struct Gadget cn_gad = {
- &re_gad, 110,97, 54,11, GADGHCOMP, RELVERIFY,
- BOOLGADGET, NL, NL,
- &cntxt, NL,NL, PGHI+1, NL };
- struct Gadget ok_gad = {
- &cn_gad, 110,82, 54,11, GADGHCOMP, RELVERIFY,
- BOOLGADGET, NL, NL,
- &oktxt, NL,NL, PGHI, NL };
-
- struct Image m3C[CTSIZ] = {
- {0,0,16,16,1, NL ,0,0,NL }, /* Colors */
- {0,0,16,16,1, NL ,0,1,NL },
- {0,0,16,16,1, NL ,0,2,NL },
- {0,0,16,16,1, NL ,0,3,NL } };
-
- struct Gadget palg[CTSIZ] = {
- { &palg[1], 3, 3, 16,16, GADGHBOX | GADGIMAGE, RELVERIFY,
- BOOLGADGET, (APTR)&m3C[0], NL,NL,NL,NL, PGAD+0, NL},
- { &palg[2], 19,3, 16,16, GADGHBOX | GADGIMAGE, RELVERIFY,
- BOOLGADGET, (APTR)&m3C[1], NL,NL,NL,NL, PGAD+1, NL},
- { &palg[3], 35,3, 16,16, GADGHBOX | GADGIMAGE, RELVERIFY,
- BOOLGADGET, (APTR)&m3C[2], NL,NL,NL,NL, PGAD+2, NL},
- { &ok_gad, 51,3, 16,16, GADGHBOX | GADGIMAGE, RELVERIFY,
- BOOLGADGET, (APTR)&m3C[3], NL,NL,NL,NL, PGAD+3, NL} };
-
-
- /* Used to open a Window */
- struct NewWindow NewCmod = {
- 40,30, PLX,PLY, 2,BCOL, NL, /* IDCMP set up AFTER CALL */
- ACTIVATE | SMART_REFRESH,
- &palg[0],NL, NL, /* FirstGadget, CheckMark, Title */
- NL,NL, /* MUST SET SCREEN AFTER OPENSCREEN!!! */
- PLX,PLY,PLX,PLY, CUSTOMSCREEN }; /* MinW, MinH, MaxW, MaxH */
-
-
- /********************************************************************
- * palette(window)
- * This is the meat. This routine opens the palette window and
- * retains control until the user selects the OK or CANCEL gadget.
- * The calling arguement is a window pointer. That window
- * is expected to have opened an IDCMP port, which palette uses.
- ********************************************************************/
- palette(calling_window)
- struct Window *calling_window;
- {
- struct Window *cW; /* Palette window handle */
-
- FAST struct IntuiMessage *imsg;
- FAST struct Gadget *igad;
-
- FAST int class,cursel;
- BOOL keepon,munge;
-
- USHORT backup[CTSIZ]; /* This table restores calling colors... */
-
- static char hxtab[16] = { '0','1','2','3','4','5','6','7','8',
- '9','a','b','c','d','e','f' };
-
- for ( cursel=CTSIZ-1; cursel >= 0; cursel--)
- backup[cursel] = p_ct[cursel];
-
- r_prop.Flags = g_prop.Flags = b_prop.Flags = FREEHORIZ | AUTOKNOB;
- r_prop.HorizBody = g_prop.HorizBody = b_prop.HorizBody = 0x1000;
-
- /* Get screen from calling window */
- NewCmod.Screen = calling_window->WScreen; /* NEED TO SET SCREEN!!! */
- if ( ! (cW = (struct Window *)OpenWindow(&NewCmod)) ) {
- return(FALSE); /* Oops... */
- }
-
- PrintIText(cW->RPort,&mstxt,7,71);
-
- cW->UserPort = calling_window->UserPort;
- ModifyIDCMP(cW, GADGETUP | GADGETDOWN | MENUVERIFY );
-
- for ( munge = keepon = TRUE; keepon; ) {
-
- if ( munge ) {
- SetAPen(cW->RPort,cursel);
- RectFill(cW->RPort,133,3,PLX-5,66);
-
- /* RJ will proably cringe if he see's this, but it is proably */
- /* safe to modify the HorizPot values this way, UNLESS the */
- /* gadgets were being fiddled with when you do it. Here that */
- /* is quite unlikely, since another gadget was just activated */
- /* to cause the munge flag to be set... */
-
- r_prop.HorizPot = (p_ct[cursel] & 0xf00) << 4;
- g_prop.HorizPot = (p_ct[cursel] & 0x0f0) << 8;
- b_prop.HorizPot = p_ct[cursel] << 12;
- RefreshGadgets(&red_gad,cW,NL);
- munge = FALSE;
- hxtxt.FrontPen = cursel ^ 15;
- hxtxt.BackPen = cursel;
- }
-
- while ( ! (imsg=(struct IntuiMessage *)GetMsg(cW->UserPort)) ) {
- class = p_ct[cursel] = ((r_prop.HorizPot >> 4) & 0xf00) +
- ((g_prop.HorizPot >> 8) & 0xf0) + (b_prop.HorizPot >>12);
- set_cmap();
-
- frog[0] = hxtab[class >> 8];
- frog[1] = hxtab[ (class >> 4) & 0x0f];
- frog[2] = hxtab[class & 0x0f];
- PrintIText(cW->RPort,&hxtxt,0,0);
-
- /* Proably, should do a WaitPort(cW->UserPort); */
- /* I didn't, so the color updates faster. */
- /* In a multitasking environment, the system is */
- /* being gronked... */
- }
-
- igad =(struct Gadget *) imsg->IAddress;
- if ( (class = imsg->Class) == MENUVERIFY ) {
- imsg->Code = MENUCANCEL; /* Don't Let Em Out! */
- DisplayBeep(NL);
- }
- ReplyMsg(imsg);
-
- switch ( class ) {
- case GADGETUP:
- case GADGETDOWN:
- if ((igad->GadgetID >= PGAD)&&(igad->GadgetID < PGAD+CTSIZ)) {
- cursel = igad->GadgetID - PGAD;
- munge = TRUE;
- }
- else switch ( igad->GadgetID ) {
- case PGHI+1: /* Cancel */
- for ( class =0 ; class<CTSIZ; class++)
- p_ct[class] = backup[class];
- set_cmap();
- case PGHI: /* OK */
- keepon = FALSE;
- break;
-
- case PGHI+2: /* Reset */
- set_defmap();
- munge = TRUE;
- break;
- }
- }
- }
-
- cW->UserPort = NL;
- CloseWindow(cW);
- return(TRUE);
- }
-
-
- /*************************************************************/
-