+ ctrl = c->ctrl;
+ id = LOWORD(wParam) - c->base_id;
+
+ if (!ctrl || !ctrl->generic.handler)
+ return 0; /* nothing we can do here */
+
+ /*
+ * From here on we do not issue `return' statements until the
+ * very end of the dialog box: any event handler is entitled to
+ * ask for a colour selector, so we _must_ always allow control
+ * to reach the end of this switch statement so that the
+ * subsequent code can test dp->coloursel_wanted().
+ */
+ ret = 0;
+ dp->coloursel_wanted = FALSE;
+
+ /*
+ * Now switch on the control type and the message.
+ */
+ switch (ctrl->generic.type) {
+ case CTRL_EDITBOX:
+ if (msg == WM_COMMAND && !ctrl->editbox.has_list &&
+ (HIWORD(wParam) == EN_SETFOCUS || HIWORD(wParam) == EN_KILLFOCUS))
+ winctrl_set_focus(ctrl, dp, HIWORD(wParam) == EN_SETFOCUS);
+ if (msg == WM_COMMAND && ctrl->editbox.has_list &&
+ (HIWORD(wParam)==CBN_SETFOCUS || HIWORD(wParam)==CBN_KILLFOCUS))
+ winctrl_set_focus(ctrl, dp, HIWORD(wParam) == CBN_SETFOCUS);
+
+ if (msg == WM_COMMAND && !ctrl->editbox.has_list &&
+ HIWORD(wParam) == EN_CHANGE)
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_VALCHANGE);
+ if (msg == WM_COMMAND &&
+ ctrl->editbox.has_list) {
+ if (HIWORD(wParam) == CBN_SELCHANGE) {
+ int index, len;
+ char *text;
+
+ index = SendDlgItemMessage(dp->hwnd, c->base_id+1,
+ CB_GETCURSEL, 0, 0);
+ len = SendDlgItemMessage(dp->hwnd, c->base_id+1,
+ CB_GETLBTEXTLEN, index, 0);
+ text = smalloc(len+1);
+ SendDlgItemMessage(dp->hwnd, c->base_id+1, CB_GETLBTEXT,
+ index, (LPARAM)text);
+ SetDlgItemText(dp->hwnd, c->base_id+1, text);
+ sfree(text);
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_VALCHANGE);
+ } else if (HIWORD(wParam) == CBN_EDITCHANGE) {
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_VALCHANGE);
+ } else if (HIWORD(wParam) == CBN_KILLFOCUS) {
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_REFRESH);
+ }
+
+ }
+ break;
+ case CTRL_RADIO:
+ if (msg == WM_COMMAND &&
+ (HIWORD(wParam) == BN_SETFOCUS || HIWORD(wParam) == BN_KILLFOCUS))
+ winctrl_set_focus(ctrl, dp, HIWORD(wParam) == BN_SETFOCUS);
+ /*
+ * We sometimes get spurious BN_CLICKED messages for the
+ * radio button that is just about to _lose_ selection, if
+ * we're switching using the arrow keys. Therefore we
+ * double-check that the button in wParam is actually
+ * checked before generating an event.
+ */
+ if (msg == WM_COMMAND &&
+ (HIWORD(wParam) == BN_CLICKED ||
+ HIWORD(wParam) == BN_DOUBLECLICKED) &&
+ IsDlgButtonChecked(dp->hwnd, LOWORD(wParam))) {
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_VALCHANGE);
+ }
+ break;
+ case CTRL_CHECKBOX:
+ if (msg == WM_COMMAND &&
+ (HIWORD(wParam) == BN_SETFOCUS || HIWORD(wParam) == BN_KILLFOCUS))
+ winctrl_set_focus(ctrl, dp, HIWORD(wParam) == BN_SETFOCUS);
+ if (msg == WM_COMMAND &&
+ (HIWORD(wParam) == BN_CLICKED ||
+ HIWORD(wParam) == BN_DOUBLECLICKED)) {
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_VALCHANGE);
+ }
+ break;
+ case CTRL_BUTTON:
+ if (msg == WM_COMMAND &&
+ (HIWORD(wParam) == BN_SETFOCUS || HIWORD(wParam) == BN_KILLFOCUS))
+ winctrl_set_focus(ctrl, dp, HIWORD(wParam) == BN_SETFOCUS);
+ if (msg == WM_COMMAND &&
+ (HIWORD(wParam) == BN_CLICKED ||
+ HIWORD(wParam) == BN_DOUBLECLICKED)) {
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_ACTION);
+ }
+ break;
+ case CTRL_LISTBOX:
+ if (msg == WM_COMMAND && ctrl->listbox.height != 0 &&
+ (HIWORD(wParam)==LBN_SETFOCUS || HIWORD(wParam)==LBN_KILLFOCUS))
+ winctrl_set_focus(ctrl, dp, HIWORD(wParam) == LBN_SETFOCUS);
+ if (msg == WM_COMMAND && ctrl->listbox.height == 0 &&
+ (HIWORD(wParam)==CBN_SETFOCUS || HIWORD(wParam)==CBN_KILLFOCUS))
+ winctrl_set_focus(ctrl, dp, HIWORD(wParam) == CBN_SETFOCUS);
+ if (msg == WM_COMMAND && id >= 2 &&
+ (HIWORD(wParam) == BN_SETFOCUS || HIWORD(wParam) == BN_KILLFOCUS))
+ winctrl_set_focus(ctrl, dp, HIWORD(wParam) == BN_SETFOCUS);
+ if (ctrl->listbox.draglist) {
+ int pret;
+ pret = handle_prefslist(c->data, NULL, 0, (msg != WM_COMMAND),
+ dp->hwnd, wParam, lParam);
+ if (pret & 2)
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_VALCHANGE);
+ ret = pret & 1;
+ } else {
+ if (msg == WM_COMMAND && HIWORD(wParam) == LBN_DBLCLK) {
+ SetCapture(dp->hwnd);
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_ACTION);
+ } else if (msg == WM_COMMAND && HIWORD(wParam) == LBN_SELCHANGE) {
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_SELCHANGE);
+ }
+ }
+ break;
+ case CTRL_FILESELECT:
+ if (msg == WM_COMMAND && id == 1 &&
+ (HIWORD(wParam) == EN_SETFOCUS || HIWORD(wParam) == EN_KILLFOCUS))
+ winctrl_set_focus(ctrl, dp, HIWORD(wParam) == EN_SETFOCUS);
+ if (msg == WM_COMMAND && id == 2 &&
+ (HIWORD(wParam) == BN_SETFOCUS || HIWORD(wParam) == BN_KILLFOCUS))
+ winctrl_set_focus(ctrl, dp, HIWORD(wParam) == BN_SETFOCUS);
+ if (msg == WM_COMMAND && id == 1 && HIWORD(wParam) == EN_CHANGE)
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_VALCHANGE);
+ if (id == 2 &&
+ (msg == WM_COMMAND &&
+ (HIWORD(wParam) == BN_CLICKED ||
+ HIWORD(wParam) == BN_DOUBLECLICKED))) {
+ OPENFILENAME of;
+ char filename[FILENAME_MAX];
+ int ret;
+
+ memset(&of, 0, sizeof(of));
+#ifdef OPENFILENAME_SIZE_VERSION_400
+ of.lStructSize = OPENFILENAME_SIZE_VERSION_400;
+#else
+ of.lStructSize = sizeof(of);
+#endif
+ of.hwndOwner = dp->hwnd;
+ if (ctrl->fileselect.filter)
+ of.lpstrFilter = ctrl->fileselect.filter;
+ else
+ of.lpstrFilter = "All Files (*.*)\0*\0\0\0";
+ of.lpstrCustomFilter = NULL;
+ of.nFilterIndex = 1;
+ of.lpstrFile = filename;
+ GetDlgItemText(dp->hwnd, c->base_id+1, filename, lenof(filename));
+ filename[lenof(filename)-1] = '\0';
+ of.nMaxFile = lenof(filename);
+ of.lpstrFileTitle = NULL;
+ of.lpstrInitialDir = NULL;
+ of.lpstrTitle = ctrl->fileselect.title;
+ of.Flags = 0;
+ if (ctrl->fileselect.for_writing)
+ ret = GetSaveFileName(&of);
+ else
+ ret = GetOpenFileName(&of);
+ if (ret) {
+ SetDlgItemText(dp->hwnd, c->base_id + 1, filename);
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_VALCHANGE);
+ }
+ }
+ break;
+ case CTRL_FONTSELECT:
+ if (msg == WM_COMMAND && id == 2 &&
+ (HIWORD(wParam) == BN_SETFOCUS || HIWORD(wParam) == BN_KILLFOCUS))
+ winctrl_set_focus(ctrl, dp, HIWORD(wParam) == BN_SETFOCUS);
+ if (id == 2 &&
+ (msg == WM_COMMAND &&
+ (HIWORD(wParam) == BN_CLICKED ||
+ HIWORD(wParam) == BN_DOUBLECLICKED))) {
+ CHOOSEFONT cf;
+ LOGFONT lf;
+ HDC hdc;
+ FontSpec fs = *(FontSpec *)c->data;
+
+ hdc = GetDC(0);
+ lf.lfHeight = -MulDiv(fs.height,
+ GetDeviceCaps(hdc, LOGPIXELSY), 72);
+ ReleaseDC(0, hdc);
+ lf.lfWidth = lf.lfEscapement = lf.lfOrientation = 0;
+ lf.lfItalic = lf.lfUnderline = lf.lfStrikeOut = 0;
+ lf.lfWeight = (fs.isbold ? FW_BOLD : 0);
+ lf.lfCharSet = fs.charset;
+ lf.lfOutPrecision = OUT_DEFAULT_PRECIS;
+ lf.lfClipPrecision = CLIP_DEFAULT_PRECIS;
+ lf.lfQuality = DEFAULT_QUALITY;
+ lf.lfPitchAndFamily = FIXED_PITCH | FF_DONTCARE;
+ strncpy(lf.lfFaceName, fs.name,
+ sizeof(lf.lfFaceName) - 1);
+ lf.lfFaceName[sizeof(lf.lfFaceName) - 1] = '\0';
+
+ cf.lStructSize = sizeof(cf);
+ cf.hwndOwner = dp->hwnd;
+ cf.lpLogFont = &lf;
+ cf.Flags = CF_FIXEDPITCHONLY | CF_FORCEFONTEXIST |
+ CF_INITTOLOGFONTSTRUCT | CF_SCREENFONTS;
+
+ if (ChooseFont(&cf)) {
+ strncpy(fs.name, lf.lfFaceName,
+ sizeof(fs.name) - 1);
+ fs.name[sizeof(fs.name) - 1] = '\0';
+ fs.isbold = (lf.lfWeight == FW_BOLD);
+ fs.charset = lf.lfCharSet;
+ fs.height = cf.iPointSize / 10;
+ dlg_fontsel_set(ctrl, dp, fs);
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_VALCHANGE);
+ }
+ }
+ break;
+ }
+
+ /*
+ * If the above event handler has asked for a colour selector,
+ * now is the time to generate one.
+ */
+ if (dp->coloursel_wanted) {
+ static CHOOSECOLOR cc;
+ static DWORD custom[16] = { 0 }; /* zero initialisers */
+ cc.lStructSize = sizeof(cc);
+ cc.hwndOwner = dp->hwnd;
+ cc.hInstance = (HWND) hinst;
+ cc.lpCustColors = custom;
+ cc.rgbResult = RGB(dp->coloursel_result.r,
+ dp->coloursel_result.g,
+ dp->coloursel_result.b);
+ cc.Flags = CC_FULLOPEN | CC_RGBINIT;
+ if (ChooseColor(&cc)) {
+ dp->coloursel_result.r =
+ (unsigned char) (cc.rgbResult & 0xFF);
+ dp->coloursel_result.g =
+ (unsigned char) (cc.rgbResult >> 8) & 0xFF;
+ dp->coloursel_result.b =
+ (unsigned char) (cc.rgbResult >> 16) & 0xFF;
+ dp->coloursel_result.ok = TRUE;
+ } else
+ dp->coloursel_result.ok = FALSE;
+ ctrl->generic.handler(ctrl, dp, dp->data, EVENT_CALLBACK);
+ }
+
+ return ret;
+}
+
+/*
+ * This function can be called to produce context help on a
+ * control. Returns TRUE if it has actually launched WinHelp.
+ */
+int winctrl_context_help(struct dlgparam *dp, HWND hwnd, int id)
+{
+ int i;
+ struct winctrl *c;
+ char *cmd;
+
+ /*
+ * Look up the control ID in our data.
+ */
+ c = NULL;
+ for (i = 0; i < dp->nctrltrees; i++) {
+ c = winctrl_findbyid(dp->controltrees[i], id);
+ if (c)
+ break;
+ }
+ if (!c)
+ return 0; /* we have nothing to do */
+
+ /*
+ * This is the Windows front end, so we're allowed to assume
+ * `helpctx.p' is a context string.
+ */
+ if (!c->ctrl || !c->ctrl->generic.helpctx.p)
+ return 0; /* no help available for this ctrl */
+
+ cmd = dupprintf("JI(`',`%s')", c->ctrl->generic.helpctx.p);
+ WinHelp(hwnd, help_path, HELP_COMMAND, (DWORD)cmd);
+ sfree(cmd);
+ return 1;
+}
+
+/*
+ * Now the various functions that the platform-independent
+ * mechanism can call to access the dialog box entries.
+ */
+
+static struct winctrl *dlg_findbyctrl(struct dlgparam *dp, union control *ctrl)
+{
+ int i;
+
+ for (i = 0; i < dp->nctrltrees; i++) {
+ struct winctrl *c = winctrl_findbyctrl(dp->controltrees[i], ctrl);
+ if (c)
+ return c;
+ }
+ return NULL;
+}
+
+void dlg_radiobutton_set(union control *ctrl, void *dlg, int whichbutton)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ assert(c && c->ctrl->generic.type == CTRL_RADIO);
+ CheckRadioButton(dp->hwnd,
+ c->base_id + 1,
+ c->base_id + c->ctrl->radio.nbuttons,
+ c->base_id + 1 + whichbutton);
+}
+
+int dlg_radiobutton_get(union control *ctrl, void *dlg)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ int i;
+ assert(c && c->ctrl->generic.type == CTRL_RADIO);
+ for (i = 0; i < c->ctrl->radio.nbuttons; i++)
+ if (IsDlgButtonChecked(dp->hwnd, c->base_id + 1 + i))
+ return i;
+ assert(!"No radio button was checked?!");
+ return 0;
+}
+
+void dlg_checkbox_set(union control *ctrl, void *dlg, int checked)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ assert(c && c->ctrl->generic.type == CTRL_CHECKBOX);
+ CheckDlgButton(dp->hwnd, c->base_id, (checked != 0));
+}
+
+int dlg_checkbox_get(union control *ctrl, void *dlg)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ assert(c && c->ctrl->generic.type == CTRL_CHECKBOX);
+ return 0 != IsDlgButtonChecked(dp->hwnd, c->base_id);
+}
+
+void dlg_editbox_set(union control *ctrl, void *dlg, char const *text)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ assert(c && c->ctrl->generic.type == CTRL_EDITBOX);
+ SetDlgItemText(dp->hwnd, c->base_id+1, text);
+}
+
+void dlg_editbox_get(union control *ctrl, void *dlg, char *buffer, int length)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ assert(c && c->ctrl->generic.type == CTRL_EDITBOX);
+ GetDlgItemText(dp->hwnd, c->base_id+1, buffer, length);
+ buffer[length-1] = '\0';
+}
+
+/* The `listbox' functions can also apply to combo boxes. */
+void dlg_listbox_clear(union control *ctrl, void *dlg)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ int msg;
+ assert(c &&
+ (c->ctrl->generic.type == CTRL_LISTBOX ||
+ (c->ctrl->generic.type == CTRL_EDITBOX &&
+ c->ctrl->editbox.has_list)));
+ msg = (c->ctrl->generic.type==CTRL_LISTBOX && c->ctrl->listbox.height!=0 ?
+ LB_RESETCONTENT : CB_RESETCONTENT);
+ SendDlgItemMessage(dp->hwnd, c->base_id+1, msg, 0, 0);
+}
+
+void dlg_listbox_del(union control *ctrl, void *dlg, int index)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ int msg;
+ assert(c &&
+ (c->ctrl->generic.type == CTRL_LISTBOX ||
+ (c->ctrl->generic.type == CTRL_EDITBOX &&
+ c->ctrl->editbox.has_list)));
+ msg = (c->ctrl->generic.type==CTRL_LISTBOX && c->ctrl->listbox.height!=0 ?
+ LB_DELETESTRING : CB_DELETESTRING);
+ SendDlgItemMessage(dp->hwnd, c->base_id+1, msg, index, 0);
+}
+
+void dlg_listbox_add(union control *ctrl, void *dlg, char const *text)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ int msg;
+ assert(c &&
+ (c->ctrl->generic.type == CTRL_LISTBOX ||
+ (c->ctrl->generic.type == CTRL_EDITBOX &&
+ c->ctrl->editbox.has_list)));
+ msg = (c->ctrl->generic.type==CTRL_LISTBOX && c->ctrl->listbox.height!=0 ?
+ LB_ADDSTRING : CB_ADDSTRING);
+ SendDlgItemMessage(dp->hwnd, c->base_id+1, msg, 0, (LPARAM)text);
+}
+
+/*
+ * Each listbox entry may have a numeric id associated with it.
+ * Note that some front ends only permit a string to be stored at
+ * each position, which means that _if_ you put two identical
+ * strings in any listbox then you MUST not assign them different
+ * IDs and expect to get meaningful results back.
+ */
+void dlg_listbox_addwithindex(union control *ctrl, void *dlg,
+ char const *text, int id)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ int msg, msg2, index;
+ assert(c &&
+ (c->ctrl->generic.type == CTRL_LISTBOX ||
+ (c->ctrl->generic.type == CTRL_EDITBOX &&
+ c->ctrl->editbox.has_list)));
+ msg = (c->ctrl->generic.type==CTRL_LISTBOX && c->ctrl->listbox.height!=0 ?
+ LB_ADDSTRING : CB_ADDSTRING);
+ msg2 = (c->ctrl->generic.type==CTRL_LISTBOX && c->ctrl->listbox.height!=0 ?
+ LB_SETITEMDATA : CB_SETITEMDATA);
+ index = SendDlgItemMessage(dp->hwnd, c->base_id+1, msg, 0, (LPARAM)text);
+ SendDlgItemMessage(dp->hwnd, c->base_id+1, msg2, index, (LPARAM)id);
+}
+
+int dlg_listbox_getid(union control *ctrl, void *dlg, int index)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ int msg;
+ assert(c && c->ctrl->generic.type == CTRL_LISTBOX);
+ msg = (c->ctrl->listbox.height != 0 ? LB_GETITEMDATA : CB_GETITEMDATA);
+ return
+ SendDlgItemMessage(dp->hwnd, c->base_id+1, msg, index, 0);
+}
+
+/* dlg_listbox_index returns <0 if no single element is selected. */
+int dlg_listbox_index(union control *ctrl, void *dlg)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ int msg, ret;
+ assert(c && c->ctrl->generic.type == CTRL_LISTBOX &&
+ !c->ctrl->listbox.multisel);
+ msg = (c->ctrl->listbox.height != 0 ? LB_GETCURSEL : CB_GETCURSEL);
+ ret = SendDlgItemMessage(dp->hwnd, c->base_id+1, msg, 0, 0);
+ if (ret == LB_ERR)
+ return -1;
+ else
+ return ret;
+}
+
+int dlg_listbox_issel(union control *ctrl, void *dlg, int index)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ assert(c && c->ctrl->generic.type == CTRL_LISTBOX &&
+ c->ctrl->listbox.multisel &&
+ c->ctrl->listbox.height != 0);
+ return
+ SendDlgItemMessage(dp->hwnd, c->base_id+1, LB_GETSEL, index, 0);
+}
+
+void dlg_listbox_select(union control *ctrl, void *dlg, int index)
+{
+ struct dlgparam *dp = (struct dlgparam *)dlg;
+ struct winctrl *c = dlg_findbyctrl(dp, ctrl);
+ int msg;
+ assert(c && c->ctrl->generic.type == CTRL_LISTBOX &&
+ !c->ctrl->listbox.multisel);
+ msg = (c->ctrl->listbox.height != 0 ? LB_SETCURSEL : CB_SETCURSEL);
+ SendDlgItemMessage(dp->hwnd, c->base_id+1, msg, index, 0);
+}