Add input-focus support for System 7, where the Control Manager can't do

[u/mdw/putty] / mac / macctrls.c

/* $Id: macctrls.c,v 1.18 2003/03/29 18:32:36 ben Exp $ */
/*
 * Copyright (c) 2003 Ben Harris
 * All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 * 
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <MacTypes.h>
#include <Appearance.h>
#include <Controls.h>
#include <ControlDefinitions.h>
#include <Menus.h>
#include <Resources.h>
#include <Script.h>
#include <Sound.h>
#include <TextEdit.h>
#include <TextUtils.h>
#include <ToolUtils.h>
#include <Windows.h>

#include <assert.h>
#include <string.h>

#include "putty.h"
#include "mac.h"
#include "macresid.h"
#include "dialog.h"
#include "tree234.h"

/* Range of menu IDs for popup menus */
#define MENU_MIN        1024
#define MENU_MAX        2048


union macctrl {
    struct macctrl_generic {
        enum {
            MACCTRL_TEXT,
            MACCTRL_EDITBOX,
            MACCTRL_RADIO,
            MACCTRL_CHECKBOX,
            MACCTRL_BUTTON,
            MACCTRL_POPUP
        } type;
        /* Template from which this was generated */
        union control *ctrl;
        /* Next control in this panel */
        union macctrl *next;
        void *privdata;
        int freeprivdata;
    } generic;
    struct {
        struct macctrl_generic generic;
        ControlRef tbctrl;
    } text;
    struct {
        struct macctrl_generic generic;
        ControlRef tbctrl;
    } editbox;
    struct {
        struct macctrl_generic generic;
        ControlRef *tbctrls;
    } radio;
    struct {
        struct macctrl_generic generic;
        ControlRef tbctrl;
    } checkbox;
    struct {
        struct macctrl_generic generic;
        ControlRef tbctrl;
    } button;
    struct {
        struct macctrl_generic generic;
        ControlRef tbctrl;
        MenuRef menu;
        int menuid;
        unsigned int nids;
        int *ids;
    } popup;
};

struct mac_layoutstate {
    Point pos;
    unsigned int width;
    unsigned int panelnum;
};

#define ctrlevent(mcs, mc, event) do {                                  \
    if ((mc)->generic.ctrl->generic.handler != NULL)                    \
        (*(mc)->generic.ctrl->generic.handler)((mc)->generic.ctrl, (mcs),\
                                               (mcs)->data, (event));   \
} while (0)

#define findbyctrl(mcs, ctrl)                                           \
    find234((mcs)->byctrl, (ctrl), macctrl_cmp_byctrl_find)

static void macctrl_layoutset(struct mac_layoutstate *, struct controlset *, 
                              WindowPtr, struct macctrls *);
static void macctrl_switchtopanel(struct macctrls *, unsigned int);
static void macctrl_setfocus(struct macctrls *, union macctrl *);
static void macctrl_text(struct macctrls *, WindowPtr,
                         struct mac_layoutstate *, union control *);
static void macctrl_editbox(struct macctrls *, WindowPtr,
                            struct mac_layoutstate *, union control *);
static void macctrl_radio(struct macctrls *, WindowPtr,
                          struct mac_layoutstate *, union control *);
static void macctrl_checkbox(struct macctrls *, WindowPtr,
                             struct mac_layoutstate *, union control *);
static void macctrl_button(struct macctrls *, WindowPtr,
                           struct mac_layoutstate *, union control *);
static void macctrl_popup(struct macctrls *, WindowPtr,
                          struct mac_layoutstate *, union control *);
#if !TARGET_API_MAC_CARBON
static pascal SInt32 macctrl_sys7_text_cdef(SInt16, ControlRef,
                                            ControlDefProcMessage, SInt32);
static pascal SInt32 macctrl_sys7_editbox_cdef(SInt16, ControlRef,
                                               ControlDefProcMessage, SInt32);
static pascal SInt32 macctrl_sys7_default_cdef(SInt16, ControlRef,
                                               ControlDefProcMessage, SInt32);
#endif

#if !TARGET_API_MAC_CARBON
/*
 * This trick enables us to keep all the CDEF code in the main
 * application, which makes life easier.  For details, see
 * <http://developer.apple.com/technotes/tn/tn2003.html#custom_code_base>.
 */

#pragma options align=mac68k
typedef struct {
    short               jmpabs; /* 4EF9 */
    ControlDefUPP       theUPP;
} **PatchCDEF;
#pragma options align=reset
#endif

static void macctrl_init()
{
#if !TARGET_API_MAC_CARBON
    static int inited = 0;
    PatchCDEF cdef;

    if (inited) return;
    cdef = (PatchCDEF)GetResource(kControlDefProcResourceType, CDEF_Text);
    (*cdef)->theUPP = NewControlDefProc(macctrl_sys7_text_cdef);
    cdef = (PatchCDEF)GetResource(kControlDefProcResourceType, CDEF_EditBox);
    (*cdef)->theUPP = NewControlDefProc(macctrl_sys7_editbox_cdef);
    cdef = (PatchCDEF)GetResource(kControlDefProcResourceType, CDEF_Default);
    (*cdef)->theUPP = NewControlDefProc(macctrl_sys7_default_cdef);
    inited = 1;
#endif
}


static int macctrl_cmp_byctrl(void *av, void *bv)
{
    union macctrl *a = (union macctrl *)av;
    union macctrl *b = (union macctrl *)bv;

    if (a->generic.ctrl < b->generic.ctrl)
        return -1;
    else if (a->generic.ctrl > b->generic.ctrl)
        return +1;
    else
        return 0;
}

static int macctrl_cmp_byctrl_find(void *av, void *bv)
{
    union control *a = (union control *)av;
    union macctrl *b = (union macctrl *)bv;

    if (a < b->generic.ctrl)
        return -1;
    else if (a > b->generic.ctrl)
        return +1;
    else
        return 0;
}

void macctrl_layoutbox(struct controlbox *cb, WindowPtr window,
                       struct macctrls *mcs)
{
    int i;
    struct mac_layoutstate curstate;
    ControlRef root;
    Rect rect;

    macctrl_init();
#if TARGET_API_MAC_CARBON
    GetPortBounds(GetWindowPort(window), &rect);
#else
    rect = window->portRect;
#endif
    curstate.pos.h = rect.left + 13;
    curstate.pos.v = rect.bottom - 59;
    curstate.width = rect.right - rect.left - (13 * 2);
    if (mac_gestalts.apprvers >= 0x100)
        CreateRootControl(window, &root);
    mcs->window = window;
    mcs->byctrl = newtree234(macctrl_cmp_byctrl);
    mcs->focus = NULL;
    /* Count the number of panels */
    mcs->npanels = 1;
    for (i = 1; i < cb->nctrlsets; i++)
        if (strcmp(cb->ctrlsets[i]->pathname, cb->ctrlsets[i-1]->pathname))
            mcs->npanels++;
    mcs->panels = smalloc(sizeof(*mcs->panels) * mcs->npanels);
    memset(mcs->panels, 0, sizeof(*mcs->panels) * mcs->npanels);
    curstate.panelnum = 0;
    for (i = 0; i < cb->nctrlsets; i++) {
        if (i > 0 && strcmp(cb->ctrlsets[i]->pathname,
                            cb->ctrlsets[i-1]->pathname)) {
            curstate.pos.v = rect.top + 13;
            curstate.panelnum++;
            assert(curstate.panelnum < mcs->npanels);
        }
        macctrl_layoutset(&curstate, cb->ctrlsets[i], window, mcs);
    }
    macctrl_switchtopanel(mcs, 1);
}

static void macctrl_layoutset(struct mac_layoutstate *curstate,
                              struct controlset *s,
                              WindowPtr window, struct macctrls *mcs)
{
    unsigned int i;

    fprintf(stderr, "--- begin set ---\n");
    fprintf(stderr, "pathname = %s\n", s->pathname);
    if (s->boxname && *s->boxname)
        fprintf(stderr, "boxname = %s\n", s->boxname);
    if (s->boxtitle)
        fprintf(stderr, "boxtitle = %s\n", s->boxtitle);


    for (i = 0; i < s->ncontrols; i++) {
        union control *ctrl = s->ctrls[i];
        char const *s;

        switch (ctrl->generic.type) {
          case CTRL_TEXT: s = "text"; break;
          case CTRL_EDITBOX: s = "editbox"; break;
          case CTRL_RADIO: s = "radio"; break;
          case CTRL_CHECKBOX: s = "checkbox"; break;
          case CTRL_BUTTON: s = "button"; break;
          case CTRL_LISTBOX: s = "listbox"; break;
          case CTRL_COLUMNS: s = "columns"; break;
          case CTRL_FILESELECT: s = "fileselect"; break;
          case CTRL_FONTSELECT: s = "fontselect"; break;
          case CTRL_TABDELAY: s = "tabdelay"; break;
          default: s = "unknown"; break;
        }
        fprintf(stderr, "  control: %s\n", s);
        switch (ctrl->generic.type) {
          case CTRL_TEXT:
            macctrl_text(mcs, window, curstate, ctrl);
            break;
          case CTRL_EDITBOX:
            macctrl_editbox(mcs, window, curstate, ctrl);
            break;
          case CTRL_RADIO:
            macctrl_radio(mcs, window, curstate, ctrl);
            break;
          case CTRL_CHECKBOX:
            macctrl_checkbox(mcs, window, curstate, ctrl);
            break;
          case CTRL_BUTTON:
            macctrl_button(mcs, window, curstate, ctrl);
            break;
          case CTRL_LISTBOX:
            if (ctrl->listbox.height == 0)
                macctrl_popup(mcs, window, curstate, ctrl);
            break;
        }
    }
}

static void macctrl_switchtopanel(struct macctrls *mcs, unsigned int which)
{
    unsigned int i, j;
    union macctrl *mc;

#define hideshow(c) do {                                                \
    if (i == which) ShowControl(c); else HideControl(c);                \
} while (0)

    mcs->curpanel = which;
    /* Panel 0 is special and always visible. */
    for (i = 1; i < mcs->npanels; i++)
        for (mc = mcs->panels[i]; mc != NULL; mc = mc->generic.next) {
#if !TARGET_API_MAC_CARBON
            if (mcs->focus == mc)
                macctrl_setfocus(mcs, NULL);
#endif
            switch (mc->generic.type) {
              case MACCTRL_TEXT:
                hideshow(mc->text.tbctrl);
                break;
              case MACCTRL_EDITBOX:
                hideshow(mc->editbox.tbctrl);
                break;
              case MACCTRL_RADIO:
                for (j = 0; j < mc->generic.ctrl->radio.nbuttons; j++)
                    hideshow(mc->radio.tbctrls[j]);
                break;
              case MACCTRL_CHECKBOX:
                hideshow(mc->checkbox.tbctrl);
                break;
              case MACCTRL_BUTTON:
                hideshow(mc->button.tbctrl);
                break;
              case MACCTRL_POPUP:
                hideshow(mc->popup.tbctrl);
                break;
            }
        }
}

#if !TARGET_API_MAC_CARBON
/*
 * System 7 focus manipulation
 */
static void macctrl_defocus(union macctrl *mc)
{

    assert(mac_gestalts.apprvers < 0x100);
    switch (mc->generic.type) {
      case MACCTRL_EDITBOX:
        TEDeactivate((TEHandle)(*mc->editbox.tbctrl)->contrlData);
        break;
    }
}

static void macctrl_enfocus(union macctrl *mc)
{

    assert(mac_gestalts.apprvers < 0x100);
    switch (mc->generic.type) {
      case MACCTRL_EDITBOX:
        TEActivate((TEHandle)(*mc->editbox.tbctrl)->contrlData);
        break;
    }
}

static void macctrl_setfocus(struct macctrls *mcs, union macctrl *mc)
{

    if (mcs->focus != NULL)
        macctrl_defocus(mcs->focus);
    mcs->focus = mc;
    if (mc != NULL)
        macctrl_enfocus(mc);
}
#endif

static void macctrl_text(struct macctrls *mcs, WindowPtr window,
                         struct mac_layoutstate *curstate,
                         union control *ctrl)
{
    union macctrl *mc = smalloc(sizeof *mc);
    Rect bounds;

    fprintf(stderr, "    label = %s\n", ctrl->text.label);
    mc->generic.type = MACCTRL_TEXT;
    mc->generic.ctrl = ctrl;
    mc->generic.privdata = NULL;
    bounds.left = curstate->pos.h;
    bounds.right = bounds.left + curstate->width;
    bounds.top = curstate->pos.v;
    bounds.bottom = bounds.top + 16;
    if (mac_gestalts.apprvers >= 0x100) {
        SInt16 height;
        Size olen;

        mc->text.tbctrl = NewControl(window, &bounds, NULL, TRUE, 0, 0, 0,
                                     kControlStaticTextProc, (long)mc);
        SetControlData(mc->text.tbctrl, kControlEntireControl,
                       kControlStaticTextTextTag,
                       strlen(ctrl->text.label), ctrl->text.label);
        GetControlData(mc->text.tbctrl, kControlEntireControl,
                       kControlStaticTextTextHeightTag,
                       sizeof(height), &height, &olen);
        fprintf(stderr, "    height = %d\n", height);
        SizeControl(mc->text.tbctrl, curstate->width, height);
        curstate->pos.v += height + 6;
    } else {
        Str255 title;

        c2pstrcpy(title, ctrl->text.label);
        mc->text.tbctrl = NewControl(window, &bounds, title, TRUE, 0, 0, 0,
                                     SYS7_TEXT_PROC, (long)mc);
    }
    add234(mcs->byctrl, mc);
    mc->generic.next = mcs->panels[curstate->panelnum];
    mcs->panels[curstate->panelnum] = mc;
}

#if !TARGET_API_MAC_CARBON
static pascal SInt32 macctrl_sys7_text_cdef(SInt16 variant, ControlRef control,
                                     ControlDefProcMessage msg, SInt32 param)
{
    RgnHandle rgn;

    switch (msg) {
      case drawCntl:
        if ((*control)->contrlVis)
            TETextBox((*control)->contrlTitle + 1, (*control)->contrlTitle[0],
                      &(*control)->contrlRect, teFlushDefault);
        return 0;
      case calcCRgns:
        if (param & (1 << 31)) {
            param &= ~(1 << 31);
            goto calcthumbrgn;
        }
        /* FALLTHROUGH */
      case calcCntlRgn:
        rgn = (RgnHandle)param;
        RectRgn(rgn, &(*control)->contrlRect);
        return 0;
      case calcThumbRgn:
      calcthumbrgn:
        rgn = (RgnHandle)param;
        SetEmptyRgn(rgn);
        return 0;
    }

    return 0;
}
#endif

static void macctrl_editbox(struct macctrls *mcs, WindowPtr window,
                            struct mac_layoutstate *curstate,
                            union control *ctrl)
{
    union macctrl *mc = smalloc(sizeof *mc);
    Rect bounds;

    fprintf(stderr, "    label = %s\n", ctrl->editbox.label);
    fprintf(stderr, "    percentwidth = %d\n", ctrl->editbox.percentwidth);
    if (ctrl->editbox.password) fprintf(stderr, "    password\n");
    if (ctrl->editbox.has_list) fprintf(stderr, "    has list\n");
    mc->generic.type = MACCTRL_EDITBOX;
    mc->generic.ctrl = ctrl;
    mc->generic.privdata = NULL;
    bounds.left = curstate->pos.h;
    bounds.right = bounds.left + curstate->width;
    bounds.top = curstate->pos.v;
    bounds.bottom = bounds.top + 22;
    if (mac_gestalts.apprvers >= 0x100) {
        InsetRect(&bounds, 2, 2);
        mc->text.tbctrl = NewControl(window, &bounds, NULL, TRUE, 0, 0, 0,
                                     ctrl->editbox.password ?
                                     kControlEditTextPasswordProc :
                                     kControlEditTextProc, (long)mc);
    } else {
        mc->text.tbctrl = NewControl(window, &bounds, NULL, TRUE, 0, 0, 0,
                                     SYS7_EDITBOX_PROC, (long)mc);
    }
    curstate->pos.v += 28;
    add234(mcs->byctrl, mc);
    mc->generic.next = mcs->panels[curstate->panelnum];
    mcs->panels[curstate->panelnum] = mc;
    ctrlevent(mcs, mc, EVENT_REFRESH);
}

#if !TARGET_API_MAC_CARBON
static pascal SInt32 macctrl_sys7_editbox_cdef(SInt16 variant,
                                               ControlRef control,
                                               ControlDefProcMessage msg,
                                               SInt32 param)
{
    RgnHandle rgn;
    Rect rect;
    TEHandle te;
    long ssfs;
    Point mouse;

    switch (msg) {
      case initCntl:
        rect = (*control)->contrlRect;
        InsetRect(&rect, 3, 3); /* 2 if it's 20 pixels high */
        te = TENew(&rect, &rect);
        ssfs = GetScriptVariable(smSystemScript, smScriptSysFondSize);
        (*te)->txSize = LoWord(ssfs);
        (*te)->txFont = HiWord(ssfs);
        (*control)->contrlData = (Handle)te;
        return noErr;
      case dispCntl:
        TEDispose((TEHandle)(*control)->contrlData);
        return 0;
      case drawCntl:
        if ((*control)->contrlVis) {
            rect = (*control)->contrlRect;
            PenNormal();
            FrameRect(&rect);
            InsetRect(&rect, 3, 3);
            TEUpdate(&rect, (TEHandle)(*control)->contrlData);
        }
        return 0;
      case testCntl:
        mouse.h = LoWord(param);
        mouse.v = HiWord(param);
        return
            PtInRect(mouse, &(*(TEHandle)(*control)->contrlData)->viewRect) ?
            kControlEditTextPart : kControlNoPart;
      case calcCRgns:
        if (param & (1 << 31)) {
            param &= ~(1 << 31);
            goto calcthumbrgn;
        }
        /* FALLTHROUGH */
      case calcCntlRgn:
        rgn = (RgnHandle)param;
        RectRgn(rgn, &(*control)->contrlRect);
        return 0;
      case calcThumbRgn:
      calcthumbrgn:
        rgn = (RgnHandle)param;
        SetEmptyRgn(rgn);
        return 0;
    }

    return 0;
}
#endif

static void macctrl_radio(struct macctrls *mcs, WindowPtr window,
                          struct mac_layoutstate *curstate,
                          union control *ctrl)
{
    union macctrl *mc = smalloc(sizeof *mc);
    Rect bounds;
    Str255 title;
    unsigned int i, colwidth;

    fprintf(stderr, "    label = %s\n", ctrl->radio.label);
    mc->generic.type = MACCTRL_RADIO;
    mc->generic.ctrl = ctrl;
    mc->generic.privdata = NULL;
    mc->radio.tbctrls =
        smalloc(sizeof(*mc->radio.tbctrls) * ctrl->radio.nbuttons);
    colwidth = (curstate->width + 13) / ctrl->radio.ncolumns;
    for (i = 0; i < ctrl->radio.nbuttons; i++) {
        fprintf(stderr, "    button = %s\n", ctrl->radio.buttons[i]);
        bounds.top = curstate->pos.v - 2;
        bounds.bottom = bounds.top + 18;
        bounds.left = curstate->pos.h + colwidth * (i % ctrl->radio.ncolumns);
        if (i == ctrl->radio.nbuttons - 1 ||
            i % ctrl->radio.ncolumns == ctrl->radio.ncolumns - 1) {
            bounds.right = curstate->pos.h + curstate->width;
            curstate->pos.v += 18;
        } else
            bounds.right = bounds.left + colwidth - 13;
        c2pstrcpy(title, ctrl->radio.buttons[i]);
        mc->radio.tbctrls[i] = NewControl(window, &bounds, title, TRUE,
                                          0, 0, 1, radioButProc, (long)mc);
    }
    curstate->pos.v += 4;
    add234(mcs->byctrl, mc);
    mc->generic.next = mcs->panels[curstate->panelnum];
    mcs->panels[curstate->panelnum] = mc;
    ctrlevent(mcs, mc, EVENT_REFRESH);
}

static void macctrl_checkbox(struct macctrls *mcs, WindowPtr window,
                             struct mac_layoutstate *curstate,
                             union control *ctrl)
{
    union macctrl *mc = smalloc(sizeof *mc);
    Rect bounds;
    Str255 title;

    fprintf(stderr, "    label = %s\n", ctrl->checkbox.label);
    mc->generic.type = MACCTRL_CHECKBOX;
    mc->generic.ctrl = ctrl;
    mc->generic.privdata = NULL;
    bounds.left = curstate->pos.h;
    bounds.right = bounds.left + curstate->width;
    bounds.top = curstate->pos.v;
    bounds.bottom = bounds.top + 16;
    c2pstrcpy(title, ctrl->checkbox.label);
    mc->checkbox.tbctrl = NewControl(window, &bounds, title, TRUE, 0, 0, 1,
                                     checkBoxProc, (long)mc);
    add234(mcs->byctrl, mc);
    curstate->pos.v += 22;
    mc->generic.next = mcs->panels[curstate->panelnum];
    mcs->panels[curstate->panelnum] = mc;
    ctrlevent(mcs, mc, EVENT_REFRESH);
}

static void macctrl_button(struct macctrls *mcs, WindowPtr window,
                           struct mac_layoutstate *curstate,
                           union control *ctrl)
{
    union macctrl *mc = smalloc(sizeof *mc);
    Rect bounds;
    Str255 title;

    fprintf(stderr, "    label = %s\n", ctrl->button.label);
    if (ctrl->button.isdefault)
        fprintf(stderr, "    is default\n");
    mc->generic.type = MACCTRL_BUTTON;
    mc->generic.ctrl = ctrl;
    mc->generic.privdata = NULL;
    bounds.left = curstate->pos.h;
    bounds.right = bounds.left + 100; /* XXX measure string */
    bounds.top = curstate->pos.v;
    bounds.bottom = bounds.top + 20;
    c2pstrcpy(title, ctrl->button.label);
    mc->button.tbctrl = NewControl(window, &bounds, title, TRUE, 0, 0, 1,
                                   pushButProc, (long)mc);
    if (mac_gestalts.apprvers >= 0x100) {
        Boolean isdefault = ctrl->button.isdefault;

        SetControlData(mc->button.tbctrl, kControlEntireControl,
                       kControlPushButtonDefaultTag,
                       sizeof(isdefault), &isdefault);
    } else if (ctrl->button.isdefault) {
        InsetRect(&bounds, -4, -4);
        NewControl(window, &bounds, title, TRUE, 0, 0, 1,
                   SYS7_DEFAULT_PROC, (long)mc);
    }
    if (mac_gestalts.apprvers >= 0x110) {
        Boolean iscancel = ctrl->button.iscancel;

        SetControlData(mc->button.tbctrl, kControlEntireControl,
                       kControlPushButtonCancelTag,
                       sizeof(iscancel), &iscancel);
    }
    add234(mcs->byctrl, mc);
    mc->generic.next = mcs->panels[curstate->panelnum];
    mcs->panels[curstate->panelnum] = mc;
    curstate->pos.v += 26;
}

#if !TARGET_API_MAC_CARBON
static pascal SInt32 macctrl_sys7_default_cdef(SInt16 variant,
                                               ControlRef control,
                                               ControlDefProcMessage msg,
                                               SInt32 param)
{
    RgnHandle rgn;
    Rect rect;
    int oval;

    switch (msg) {
      case drawCntl:
        if ((*control)->contrlVis) {
            rect = (*control)->contrlRect;
            PenNormal();
            PenSize(3, 3);
            oval = (rect.bottom - rect.top) / 2 + 2;
            FrameRoundRect(&rect, oval, oval);
        }
        return 0;
      case calcCRgns:
        if (param & (1 << 31)) {
            param &= ~(1 << 31);
            goto calcthumbrgn;
        }
        /* FALLTHROUGH */
      case calcCntlRgn:
        rgn = (RgnHandle)param;
        RectRgn(rgn, &(*control)->contrlRect);
        return 0;
      case calcThumbRgn:
      calcthumbrgn:
        rgn = (RgnHandle)param;
        SetEmptyRgn(rgn);
        return 0;
    }

    return 0;
}
#endif

static void macctrl_popup(struct macctrls *mcs, WindowPtr window,
                          struct mac_layoutstate *curstate,
                          union control *ctrl)
{
    union macctrl *mc = smalloc(sizeof *mc);
    Rect bounds;
    Str255 title;
    unsigned int labelwidth;
    static int nextmenuid = MENU_MIN;
    int menuid;
    MenuRef menu;

    /* 
     * <http://developer.apple.com/qa/tb/tb42.html> explains how to
     * create a popup menu with dynamic content.
     */
    assert(ctrl->listbox.height == 0);
    assert(!ctrl->listbox.draglist);
    assert(!ctrl->listbox.multisel);

    fprintf(stderr, "    label = %s\n", ctrl->listbox.label);
    fprintf(stderr, "    percentwidth = %d\n", ctrl->listbox.percentwidth);

    mc->generic.type = MACCTRL_POPUP;
    mc->generic.ctrl = ctrl;
    mc->generic.privdata = NULL;
    c2pstrcpy(title, ctrl->button.label);

    /* Find a spare menu ID and create the menu */
    while (GetMenuHandle(nextmenuid) != NULL)
        if (++nextmenuid >= MENU_MAX) nextmenuid = MENU_MIN;
    menuid = nextmenuid++;
    menu = NewMenu(menuid, "\pdummy");
    if (menu == NULL) return;
    mc->popup.menu = menu;
    mc->popup.menuid = menuid;
    InsertMenu(menu, kInsertHierarchicalMenu);

    /* The menu starts off empty */
    mc->popup.nids = 0;
    mc->popup.ids = NULL;

    bounds.left = curstate->pos.h;
    bounds.right = bounds.left + curstate->width;
    bounds.top = curstate->pos.v;
    bounds.bottom = bounds.top + 20;
    /* XXX handle percentwidth == 100 */
    labelwidth = curstate->width * (100 - ctrl->listbox.percentwidth) / 100;
    mc->popup.tbctrl = NewControl(window, &bounds, title, TRUE,
                                  popupTitleLeftJust, menuid, labelwidth,
                                  popupMenuProc + popupFixedWidth, (long)mc);
    add234(mcs->byctrl, mc);
    curstate->pos.v += 26;
    mc->generic.next = mcs->panels[curstate->panelnum];
    mcs->panels[curstate->panelnum] = mc;
    ctrlevent(mcs, mc, EVENT_REFRESH);
}


void macctrl_activate(WindowPtr window, EventRecord *event)
{
    struct macctrls *mcs = mac_winctrls(window);
    Boolean active = (event->modifiers & activeFlag) != 0;
    GrafPtr saveport;
    int i, j;
    ControlPartCode state;
    union macctrl *mc;

    GetPort(&saveport);
    SetPort((GrafPtr)GetWindowPort(window));
    if (mac_gestalts.apprvers >= 0x100)
        SetThemeWindowBackground(window, active ?
                                 kThemeBrushModelessDialogBackgroundActive :
                                 kThemeBrushModelessDialogBackgroundInactive,
                                 TRUE);
    state = active ? kControlNoPart : kControlInactivePart;
    for (i = 0; i <= mcs->curpanel; i += mcs->curpanel)
        for (mc = mcs->panels[i]; mc != NULL; mc = mc->generic.next)
            switch (mc->generic.type) {
              case MACCTRL_TEXT:
                HiliteControl(mc->text.tbctrl, state);
                break;
              case MACCTRL_EDITBOX:
                HiliteControl(mc->editbox.tbctrl, state);
                break;
              case MACCTRL_RADIO:
                for (j = 0; j < mc->generic.ctrl->radio.nbuttons; j++)
                    HiliteControl(mc->radio.tbctrls[j], state);
                break;
              case MACCTRL_CHECKBOX:
                HiliteControl(mc->checkbox.tbctrl, state);
                break;
              case MACCTRL_BUTTON:
                HiliteControl(mc->button.tbctrl, state);
                break;
              case MACCTRL_POPUP:
                HiliteControl(mc->popup.tbctrl, state);
                break;
            }
    SetPort(saveport);
}

void macctrl_click(WindowPtr window, EventRecord *event)
{
    Point mouse;
    ControlHandle control;
    int part, trackresult;
    GrafPtr saveport;
    union macctrl *mc;
    struct macctrls *mcs = mac_winctrls(window);
    int i;
    UInt32 features;

    GetPort(&saveport);
    SetPort((GrafPtr)GetWindowPort(window));
    mouse = event->where;
    GlobalToLocal(&mouse);
    part = FindControl(mouse, window, &control);
    if (control != NULL) {
        mc = (union macctrl *)GetControlReference(control);
        if (mac_gestalts.apprvers >= 0x100) {
            if (GetControlFeatures(control, &features) == noErr &&
                (features & kControlSupportsFocus) &&
                (features & kControlGetsFocusOnClick))
                SetKeyboardFocus(window, control, part);
            trackresult = HandleControlClick(control, mouse, event->modifiers,
                                             (ControlActionUPP)-1);
        } else {
#if !TARGET_API_MAC_CARBON
            if (mc->generic.type == MACCTRL_EDITBOX &&
                control == mc->editbox.tbctrl) {
                TEHandle te = (TEHandle)(*control)->contrlData;

                macctrl_setfocus(mcs, mc);
                TEClick(mouse, !!(event->modifiers & shiftKey), te);
                goto done;
            }
#endif
            trackresult = TrackControl(control, mouse, (ControlActionUPP)-1);
        }
        switch (mc->generic.type) {
          case MACCTRL_RADIO:
            if (trackresult != 0) {
                for (i = 0; i < mc->generic.ctrl->radio.nbuttons; i++)
                    if (mc->radio.tbctrls[i] == control)
                        SetControlValue(mc->radio.tbctrls[i],
                                        kControlRadioButtonCheckedValue);
                    else
                        SetControlValue(mc->radio.tbctrls[i],
                                        kControlRadioButtonUncheckedValue);
                ctrlevent(mcs, mc, EVENT_VALCHANGE);
            }
            break;
          case MACCTRL_CHECKBOX:
            if (trackresult != 0) {
                SetControlValue(control, !GetControlValue(control));
                ctrlevent(mcs, mc, EVENT_VALCHANGE);
            }
            break;
          case MACCTRL_BUTTON:
            if (trackresult != 0)
                ctrlevent(mcs, mc, EVENT_ACTION);
            break;
          case MACCTRL_POPUP:
            ctrlevent(mcs, mc, EVENT_SELCHANGE);
            break;
        }
    }
  done:
    SetPort(saveport);
}

void macctrl_key(WindowPtr window, EventRecord *event)
{
    ControlRef control;
    struct macctrls *mcs = mac_winctrls(window);
    union macctrl *mc;

    if (mac_gestalts.apprvers >= 0x100 &&
        GetKeyboardFocus(window, &control) == noErr && control != NULL) {
        HandleControlKey(control, (event->message & keyCodeMask) >> 8,
                         event->message & charCodeMask, event->modifiers);
        mc =  (union macctrl *)GetControlReference(control);
        ctrlevent(mcs, mc, EVENT_VALCHANGE);
    }
}

void macctrl_update(WindowPtr window)
{
#if TARGET_API_MAC_CARBON
    RgnHandle visrgn;
#endif
    Rect rect;
    GrafPtr saveport;

    BeginUpdate(window);
    GetPort(&saveport);
    SetPort((GrafPtr)GetWindowPort(window));
    if (mac_gestalts.apprvers >= 0x101) {
#if TARGET_API_MAC_CARBON
        GetPortBounds(GetWindowPort(window), &rect);
#else
        rect = window->portRect;
#endif
        InsetRect(&rect, -1, -1);
        DrawThemeModelessDialogFrame(&rect, mac_frontwindow() == window ?
                                     kThemeStateActive : kThemeStateInactive);
    }
#if TARGET_API_MAC_CARBON
    visrgn = NewRgn();
    GetPortVisibleRegion(GetWindowPort(window), visrgn);
    UpdateControls(window, visrgn);
    DisposeRgn(visrgn);
#else
    UpdateControls(window, window->visRgn);
#endif
    SetPort(saveport);
    EndUpdate(window);
}

#if TARGET_API_MAC_CARBON
#define EnableItem EnableMenuItem
#define DisableItem DisableMenuItem
#endif
void macctrl_adjustmenus(WindowPtr window)
{
    MenuHandle menu;

    menu = GetMenuHandle(mFile);
    DisableItem(menu, iSave); /* XXX enable if modified */
    EnableItem(menu, iSaveAs);
    EnableItem(menu, iDuplicate);

    menu = GetMenuHandle(mEdit);
    DisableItem(menu, 0);
}

void macctrl_close(WindowPtr window)
{
    struct macctrls *mcs = mac_winctrls(window);
    union macctrl *mc;

    /*
     * Mostly, we don't bother disposing of the Toolbox controls,
     * since that will happen automatically when the window is
     * disposed of.  Popup menus are an exception, because we have to
     * dispose of the menu ourselves, and doing that while the control
     * still holds a reference to it seems rude.
     */
    while ((mc = index234(mcs->byctrl, 0)) != NULL) {
        if (mc->generic.privdata != NULL && mc->generic.freeprivdata)
            sfree(mc->generic.privdata);
        switch (mc->generic.type) {
          case MACCTRL_POPUP:
            DisposeControl(mc->popup.tbctrl);
            DeleteMenu(mc->popup.menuid);
            DisposeMenu(mc->popup.menu);
            break;
        }
        del234(mcs->byctrl, mc);
        sfree(mc);
    }

    freetree234(mcs->byctrl);
    mcs->byctrl = NULL;
    sfree(mcs->panels);
    mcs->panels = NULL;
}

void dlg_update_start(union control *ctrl, void *dlg)
{

    /* No-op for now */
}

void dlg_update_done(union control *ctrl, void *dlg)
{

    /* No-op for now */
}

void dlg_set_focus(union control *ctrl, void *dlg)
{

    if (mac_gestalts.apprvers >= 0x100) {
        /* Use SetKeyboardFocus() */
    } else {
        /* Do our own mucking around */
    }
}

union control *dlg_last_focused(union control *ctrl, void *dlg)
{

    return NULL;
}

void dlg_beep(void *dlg)
{

    SysBeep(30);
}

void dlg_error_msg(void *dlg, char *msg)
{
    Str255 pmsg;

    c2pstrcpy(pmsg, msg);
    ParamText(pmsg, NULL, NULL, NULL);
    StopAlert(128, NULL);
}

void dlg_end(void *dlg, int value)
{

};

void dlg_refresh(union control *ctrl, void *dlg)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc;

    if (ctrl == NULL)
        return; /* FIXME */
    mc = findbyctrl(mcs, ctrl);
    assert(mc != NULL);
    ctrlevent(mcs, mc, EVENT_REFRESH);
};

void *dlg_get_privdata(union control *ctrl, void *dlg)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);

    assert(mc != NULL);
    return mc->generic.privdata;
}

void dlg_set_privdata(union control *ctrl, void *dlg, void *ptr)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);

    assert(mc != NULL);
    mc->generic.privdata = ptr;
    mc->generic.freeprivdata = FALSE;
}

void *dlg_alloc_privdata(union control *ctrl, void *dlg, size_t size)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);

    assert(mc != NULL);
    mc->generic.privdata = smalloc(size);
    mc->generic.freeprivdata = TRUE;
    return mc->generic.privdata;
}


/*
 * Radio Button control
 */

void dlg_radiobutton_set(union control *ctrl, void *dlg, int whichbutton)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);
    int i;

    assert(mc != NULL);
    for (i = 0; i < ctrl->radio.nbuttons; i++) {
        if (i == whichbutton)
            SetControlValue(mc->radio.tbctrls[i],
                            kControlRadioButtonCheckedValue);
        else
            SetControlValue(mc->radio.tbctrls[i],
                            kControlRadioButtonUncheckedValue);
    }

};

int dlg_radiobutton_get(union control *ctrl, void *dlg)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);
    int i;

    assert(mc != NULL);
    for (i = 0; i < ctrl->radio.nbuttons; i++) {
        if (GetControlValue(mc->radio.tbctrls[i])  ==
            kControlRadioButtonCheckedValue)
            return i;
    }
    return -1;
};


/*
 * Check Box control
 */

void dlg_checkbox_set(union control *ctrl, void *dlg, int checked)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);

    assert(mc != NULL);
    SetControlValue(mc->checkbox.tbctrl,
                    checked ? kControlCheckBoxCheckedValue :
                              kControlCheckBoxUncheckedValue);
}

int dlg_checkbox_get(union control *ctrl, void *dlg)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);

    assert(mc != NULL);
    return GetControlValue(mc->checkbox.tbctrl);
}


/*
 * Edit Box control
 */

void dlg_editbox_set(union control *ctrl, void *dlg, char const *text)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);
    GrafPtr saveport;

    assert(mc != NULL);
    assert(mc->generic.type == MACCTRL_EDITBOX);
    GetPort(&saveport);
    SetPort((GrafPtr)(GetWindowPort(mcs->window)));
    if (mac_gestalts.apprvers >= 0x100)
        SetControlData(mc->editbox.tbctrl, kControlEntireControl,
                       ctrl->editbox.password ?
                       kControlEditTextPasswordTag :
                       kControlEditTextTextTag,
                       strlen(text), text);
#if !TARGET_API_MAC_CARBON
    else
        TESetText(text, strlen(text),
                  (TEHandle)(*mc->editbox.tbctrl)->contrlData);
#endif
    DrawOneControl(mc->editbox.tbctrl);
    SetPort(saveport);
}

void dlg_editbox_get(union control *ctrl, void *dlg, char *buffer, int length)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);
    Size olen;

    assert(mc != NULL);
    assert(mc->generic.type == MACCTRL_EDITBOX);
    if (mac_gestalts.apprvers >= 0x100) {
        if (GetControlData(mc->editbox.tbctrl, kControlEntireControl,
                           ctrl->editbox.password ?
                           kControlEditTextPasswordTag :
                           kControlEditTextTextTag,
                           length - 1, buffer, &olen) != noErr)
            olen = 0;
        if (olen > length - 1)
            olen = length - 1;
    }
#if !TARGET_API_MAC_CARBON
    else {
        TEHandle te = (TEHandle)(*mc->editbox.tbctrl)->contrlData;

        olen = (*te)->teLength;
        if (olen > length - 1)
            olen = length - 1;
        memcpy(buffer, *(*te)->hText, olen);
    }
#endif
    buffer[olen] = '\0';
    fprintf(stderr, "dlg_editbox_get: %s\n", buffer);
}


/*
 * List Box control
 */

static void dlg_macpopup_clear(union control *ctrl, void *dlg)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);
    MenuRef menu = mc->popup.menu;
    unsigned int i, n;

    fprintf(stderr, "      popup_clear\n");
    n = CountMenuItems(menu);
    for (i = 0; i < n; i++)
        DeleteMenuItem(menu, n - i);
    mc->popup.nids = 0;
    sfree(mc->popup.ids);
    mc->popup.ids = NULL;
    SetControlMaximum(mc->popup.tbctrl, CountMenuItems(menu));
}

void dlg_listbox_clear(union control *ctrl, void *dlg)
{

    if (ctrl->listbox.height == 0)
        dlg_macpopup_clear(ctrl, dlg);
}

static void dlg_macpopup_del(union control *ctrl, void *dlg, int index)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);
    MenuRef menu = mc->popup.menu;

    fprintf(stderr, "      popup_del %d\n", index);
    DeleteMenuItem(menu, index + 1);
    if (mc->popup.ids != NULL)
        memcpy(mc->popup.ids + index, mc->popup.ids + index + 1,
               (mc->popup.nids - index - 1) * sizeof(*mc->popup.ids));
    SetControlMaximum(mc->popup.tbctrl, CountMenuItems(menu));
}

void dlg_listbox_del(union control *ctrl, void *dlg, int index)
{

    if (ctrl->listbox.height == 0)
        dlg_macpopup_del(ctrl, dlg, index);
}

static void dlg_macpopup_add(union control *ctrl, void *dlg, char const *text)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);
    MenuRef menu = mc->popup.menu;
    Str255 itemstring;

    fprintf(stderr, "      popup_add %s\n", text);
    assert(text[0] != '\0');
    c2pstrcpy(itemstring, text);
    AppendMenu(menu, "\pdummy");
    SetMenuItemText(menu, CountMenuItems(menu), itemstring);
    SetControlMaximum(mc->popup.tbctrl, CountMenuItems(menu));
}

void dlg_listbox_add(union control *ctrl, void *dlg, char const *text)
{

    if (ctrl->listbox.height == 0)
        dlg_macpopup_add(ctrl, dlg, text);
}

static void dlg_macpopup_addwithid(union control *ctrl, void *dlg,
                                   char const *text, int id)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);
    MenuRef menu = mc->popup.menu;
    unsigned int index;

    fprintf(stderr, "      popup_addwthindex %s, %d\n", text, id);
    dlg_macpopup_add(ctrl, dlg, text);
    index = CountMenuItems(menu) - 1;
    if (mc->popup.nids <= index) {
        mc->popup.nids = index + 1;
        mc->popup.ids = srealloc(mc->popup.ids,
                                 mc->popup.nids * sizeof(*mc->popup.ids));
    }
    mc->popup.ids[index] = id;
}

void dlg_listbox_addwithid(union control *ctrl, void *dlg,
                           char const *text, int id)
{

    if (ctrl->listbox.height == 0)
        dlg_macpopup_addwithid(ctrl, dlg, text, id);
}

int dlg_listbox_getid(union control *ctrl, void *dlg, int index)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);

    if (ctrl->listbox.height == 0) {
        assert(mc->popup.ids != NULL && mc->popup.nids > index);
        return mc->popup.ids[index];
    }
    return 0;
}

int dlg_listbox_index(union control *ctrl, void *dlg)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);

    if (ctrl->listbox.height == 0)
        return GetControlValue(mc->popup.tbctrl) - 1;
    return 0;
};

int dlg_listbox_issel(union control *ctrl, void *dlg, int index)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);

    if (ctrl->listbox.height == 0)
        return GetControlValue(mc->popup.tbctrl) - 1 == index;
    return 0;
};

void dlg_listbox_select(union control *ctrl, void *dlg, int index)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);

    if (ctrl->listbox.height == 0)
        SetControlValue(mc->popup.tbctrl, index + 1);
};


/*
 * Text control
 */

void dlg_text_set(union control *ctrl, void *dlg, char const *text)
{
    struct macctrls *mcs = dlg;
    union macctrl *mc = findbyctrl(mcs, ctrl);
    Str255 title;

    assert(mc != NULL);
    if (mac_gestalts.apprvers >= 0x100)
        SetControlData(mc->text.tbctrl, kControlEntireControl,
                       kControlStaticTextTextTag, strlen(text), text);
    else {
        c2pstrcpy(title, text);
        SetControlTitle(mc->text.tbctrl, title);
    }
}


/*
 * File Selector control
 */

void dlg_filesel_set(union control *ctrl, void *dlg, Filename fn)
{

}

void dlg_filesel_get(union control *ctrl, void *dlg, Filename *fn)
{

}


/*
 * Font Selector control
 */

void dlg_fontsel_set(union control *ctrl, void *dlg, FontSpec fn)
{

}

void dlg_fontsel_get(union control *ctrl, void *dlg, FontSpec *fn)
{

}


/*
 * Printer enumeration
 */

printer_enum *printer_start_enum(int *nprinters)
{

    *nprinters = 0;
    return NULL;
}

char *printer_get_name(printer_enum *pe, int thing)
{

    return "<none>";
}

void printer_finish_enum(printer_enum *pe)
{

}


/*
 * Colour selection stuff
 */

void dlg_coloursel_start(union control *ctrl, void *dlg,
                         int r, int g, int b)
{

}

int dlg_coloursel_results(union control *ctrl, void *dlg,
                          int *r, int *g, int *b)
{

    return 0;
}

/*
 * Local Variables:
 * c-file-style: "simon"
 * End:
 */