gtkdlg.c

大名鼎鼎的远程登录软件putty的Symbian版源码

             * If the font name wasn't found as it was, try opening
             * it and extracting its FONT property. This should
             * have the effect of mapping short aliases into true
             * XLFDs.
             */
            GdkFont *font = gdk_font_load(fontname);
            if (font) {
                XFontStruct *xfs = GDK_FONT_XFONT(font);
                Display *disp = GDK_FONT_XDISPLAY(font);
                Atom fontprop = XInternAtom(disp, "FONT", False);
                unsigned long ret;
                if (XGetFontProperty(xfs, fontprop, &ret)) {
                    char *name = XGetAtomName(disp, (Atom)ret);
                    if (name)
                        gtk_font_selection_dialog_set_font_name
                        (GTK_FONT_SELECTION_DIALOG(fontsel), name);
                }
                gdk_font_unref(font);
            }
        }
	gtk_object_set_data
	    (GTK_OBJECT(GTK_FONT_SELECTION_DIALOG(fontsel)->ok_button),
	     "user-data", (gpointer)fontsel);
	gtk_object_set_data(GTK_OBJECT(fontsel), "user-data", (gpointer)uc);
	gtk_signal_connect
	    (GTK_OBJECT(GTK_FONT_SELECTION_DIALOG(fontsel)->ok_button),
	     "clicked", GTK_SIGNAL_FUNC(fontsel_ok), (gpointer)dp);
	gtk_signal_connect_object
	    (GTK_OBJECT(GTK_FONT_SELECTION_DIALOG(fontsel)->ok_button),
	     "clicked", GTK_SIGNAL_FUNC(gtk_widget_destroy),
	     (gpointer)fontsel);
	gtk_signal_connect_object
	    (GTK_OBJECT(GTK_FONT_SELECTION_DIALOG(fontsel)->cancel_button),
	     "clicked", GTK_SIGNAL_FUNC(gtk_widget_destroy),
	     (gpointer)fontsel);
	gtk_widget_show(fontsel);
    }
}

static void label_sizealloc(GtkWidget *widget, GtkAllocation *alloc,
			    gpointer data)
{
    struct dlgparam *dp = (struct dlgparam *)data;
    struct uctrl *uc = dlg_find_bywidget(dp, widget);

    gtk_widget_set_usize(uc->text, alloc->width, -1);
    gtk_label_set_text(GTK_LABEL(uc->text), uc->ctrl->generic.label);
    gtk_signal_disconnect(GTK_OBJECT(uc->text), uc->textsig);
}

/* ----------------------------------------------------------------------
 * This function does the main layout work: it reads a controlset,
 * it creates the relevant GTK controls, and returns a GtkWidget
 * containing the result. (This widget might be a title of some
 * sort, it might be a Columns containing many controls, or it
 * might be a GtkFrame containing a Columns; whatever it is, it's
 * definitely a GtkWidget and should probably be added to a
 * GtkVbox.)
 * 
 * `listitemheight' is used to calculate a usize for list boxes: it
 * should be the height from the size request of a GtkListItem.
 * 
 * `win' is required for setting the default button. If it is
 * non-NULL, all buttons created will be default-capable (so they
 * have extra space round them for the default highlight).
 */
GtkWidget *layout_ctrls(struct dlgparam *dp, struct Shortcuts *scs,
			struct controlset *s, int listitemheight,
			GtkWindow *win)
{
    Columns *cols;
    GtkWidget *ret;
    int i;

    if (!s->boxname && s->boxtitle) {
        /* This controlset is a panel title. */
        return gtk_label_new(s->boxtitle);
    }

    /*
     * Otherwise, we expect to be laying out actual controls, so
     * we'll start by creating a Columns for the purpose.
     */
    cols = COLUMNS(columns_new(4));
    ret = GTK_WIDGET(cols);
    gtk_widget_show(ret);

    /*
     * Create a containing frame if we have a box name.
     */
    if (*s->boxname) {
        ret = gtk_frame_new(s->boxtitle);   /* NULL is valid here */
        gtk_container_set_border_width(GTK_CONTAINER(cols), 4);
        gtk_container_add(GTK_CONTAINER(ret), GTK_WIDGET(cols));
        gtk_widget_show(ret);
    }

    /*
     * Now iterate through the controls themselves, create them,
     * and add them to the Columns.
     */
    for (i = 0; i < s->ncontrols; i++) {
	union control *ctrl = s->ctrls[i];
	struct uctrl *uc;
	int left = FALSE;
        GtkWidget *w = NULL;

        switch (ctrl->generic.type) {
          case CTRL_COLUMNS:
            {
                static const int simplecols[1] = { 100 };
                columns_set_cols(cols, ctrl->columns.ncols,
                                 (ctrl->columns.percentages ?
                                  ctrl->columns.percentages : simplecols));
            }
            continue;                  /* no actual control created */
          case CTRL_TABDELAY:
	    {
		struct uctrl *uc = dlg_find_byctrl(dp, ctrl->tabdelay.ctrl);
		if (uc)
		    columns_taborder_last(cols, uc->toplevel);
	    }
            continue;                  /* no actual control created */
	}

	uc = snew(struct uctrl);
	uc->ctrl = ctrl;
	uc->privdata = NULL;
	uc->privdata_needs_free = FALSE;
	uc->buttons = NULL;
	uc->entry = uc->list = uc->menu = NULL;
	uc->button = uc->optmenu = uc->text = NULL;

        switch (ctrl->generic.type) {
          case CTRL_BUTTON:
            w = gtk_button_new_with_label(ctrl->generic.label);
	    if (win) {
		GTK_WIDGET_SET_FLAGS(w, GTK_CAN_DEFAULT);
		if (ctrl->button.isdefault)
		    gtk_window_set_default(win, w);
		if (ctrl->button.iscancel)
		    dp->cancelbutton = w;
	    }
	    gtk_signal_connect(GTK_OBJECT(w), "clicked",
			       GTK_SIGNAL_FUNC(button_clicked), dp);
            gtk_signal_connect(GTK_OBJECT(w), "focus_in_event",
                               GTK_SIGNAL_FUNC(widget_focus), dp);
	    shortcut_add(scs, GTK_BIN(w)->child, ctrl->button.shortcut,
			 SHORTCUT_UCTRL, uc);
            break;
          case CTRL_CHECKBOX:
            w = gtk_check_button_new_with_label(ctrl->generic.label);
	    gtk_signal_connect(GTK_OBJECT(w), "toggled",
			       GTK_SIGNAL_FUNC(button_toggled), dp);
            gtk_signal_connect(GTK_OBJECT(w), "focus_in_event",
                               GTK_SIGNAL_FUNC(widget_focus), dp);
	    shortcut_add(scs, GTK_BIN(w)->child, ctrl->checkbox.shortcut,
			 SHORTCUT_UCTRL, uc);
	    left = TRUE;
            break;
          case CTRL_RADIO:
            /*
             * Radio buttons get to go inside their own Columns, no
             * matter what.
             */
            {
                gint i, *percentages;
                GSList *group;

                w = columns_new(0);
                if (ctrl->generic.label) {
                    GtkWidget *label = gtk_label_new(ctrl->generic.label);
                    columns_add(COLUMNS(w), label, 0, 1);
		    columns_force_left_align(COLUMNS(w), label);
                    gtk_widget_show(label);
		    shortcut_add(scs, label, ctrl->radio.shortcut,
				 SHORTCUT_UCTRL, uc);
                }
                percentages = g_new(gint, ctrl->radio.ncolumns);
                for (i = 0; i < ctrl->radio.ncolumns; i++) {
                    percentages[i] =
                        ((100 * (i+1) / ctrl->radio.ncolumns) -
                         100 * i / ctrl->radio.ncolumns);
                }
                columns_set_cols(COLUMNS(w), ctrl->radio.ncolumns,
                                 percentages);
                g_free(percentages);
                group = NULL;

		uc->nbuttons = ctrl->radio.nbuttons;
		uc->buttons = snewn(uc->nbuttons, GtkWidget *);

                for (i = 0; i < ctrl->radio.nbuttons; i++) {
                    GtkWidget *b;
                    gint colstart;

                    b = (gtk_radio_button_new_with_label
                         (group, ctrl->radio.buttons[i]));
		    uc->buttons[i] = b;
                    group = gtk_radio_button_group(GTK_RADIO_BUTTON(b));
                    colstart = i % ctrl->radio.ncolumns;
                    columns_add(COLUMNS(w), b, colstart,
                                (i == ctrl->radio.nbuttons-1 ?
                                 ctrl->radio.ncolumns - colstart : 1));
		    columns_force_left_align(COLUMNS(w), b);
                    gtk_widget_show(b);
		    gtk_signal_connect(GTK_OBJECT(b), "toggled",
				       GTK_SIGNAL_FUNC(button_toggled), dp);
                    gtk_signal_connect(GTK_OBJECT(b), "focus_in_event",
                                       GTK_SIGNAL_FUNC(widget_focus), dp);
		    if (ctrl->radio.shortcuts) {
			shortcut_add(scs, GTK_BIN(b)->child,
				     ctrl->radio.shortcuts[i],
				     SHORTCUT_UCTRL, uc);
		    }
                }
            }
            break;
          case CTRL_EDITBOX:
	    {
                GtkRequisition req;

		if (ctrl->editbox.has_list) {
		    w = gtk_combo_new();
		    gtk_combo_set_value_in_list(GTK_COMBO(w), FALSE, TRUE);
		    uc->entry = GTK_COMBO(w)->entry;
		    uc->list = GTK_COMBO(w)->list;
		} else {
		    w = gtk_entry_new();
		    if (ctrl->editbox.password)
			gtk_entry_set_visibility(GTK_ENTRY(w), FALSE);
		    uc->entry = w;
		}
		gtk_signal_connect(GTK_OBJECT(uc->entry), "changed",
				   GTK_SIGNAL_FUNC(editbox_changed), dp);
		gtk_signal_connect(GTK_OBJECT(uc->entry), "key_press_event",
				   GTK_SIGNAL_FUNC(editbox_key), dp);
		gtk_signal_connect(GTK_OBJECT(uc->entry), "focus_in_event",
				   GTK_SIGNAL_FUNC(widget_focus), dp);
		/*
		 * Edit boxes, for some strange reason, have a minimum
		 * width of 150 in GTK 1.2. We don't want this - we'd
		 * rather the edit boxes acquired their natural width
		 * from the column layout of the rest of the box.
		 *
		 * Also, while we're here, we'll squirrel away the
		 * edit box height so we can use that to centre its
		 * label vertically beside it.
		 */
                gtk_widget_size_request(w, &req);
                gtk_widget_set_usize(w, 10, req.height);

		if (ctrl->generic.label) {
		    GtkWidget *label, *container;

		    label = gtk_label_new(ctrl->generic.label);

		    shortcut_add(scs, label, ctrl->editbox.shortcut,
				 SHORTCUT_FOCUS, uc->entry);

		    container = columns_new(4);
		    if (ctrl->editbox.percentwidth == 100) {
			columns_add(COLUMNS(container), label, 0, 1);
			columns_force_left_align(COLUMNS(container), label);
			columns_add(COLUMNS(container), w, 0, 1);
		    } else {
			gint percentages[2];
			percentages[1] = ctrl->editbox.percentwidth;
			percentages[0] = 100 - ctrl->editbox.percentwidth;
			columns_set_cols(COLUMNS(container), 2, percentages);
			columns_add(COLUMNS(container), label, 0, 1);
			columns_force_left_align(COLUMNS(container), label);
			columns_add(COLUMNS(container), w, 1, 1);
			/* Centre the label vertically. */
			gtk_widget_set_usize(label, -1, req.height);
			gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
		    }
		    gtk_widget_show(label);
		    gtk_widget_show(w);

		    w = container;
		}
		gtk_signal_connect(GTK_OBJECT(uc->entry), "focus_out_event",
				   GTK_SIGNAL_FUNC(editbox_lostfocus), dp);
	    }
            break;
          case CTRL_FILESELECT:
          case CTRL_FONTSELECT:
            {
                GtkWidget *ww;
                GtkRequisition req;
                char *browsebtn =
                    (ctrl->generic.type == CTRL_FILESELECT ?
                     "Browse..." : "Change...");

                gint percentages[] = { 75, 25 };
                w = columns_new(4);
                columns_set_cols(COLUMNS(w), 2, percentages);

                if (ctrl->generic.label) {
                    ww = gtk_label_new(ctrl->generic.label);
                    columns_add(COLUMNS(w), ww, 0, 2);
		    columns_force_left_align(COLUMNS(w), ww);
                    gtk_widget_show(ww);
		    shortcut_add(scs, ww,
				 (ctrl->generic.type == CTRL_FILESELECT ?
				  ctrl->fileselect.shortcut :
				  ctrl->fontselect.shortcut),
				 SHORTCUT_UCTRL, uc);
                }

                uc->entry = ww = gtk_entry_new();
                gtk_widget_size_request(ww, &req);
                gtk_widget_set_usize(ww, 10, req.height);
                columns_add(COLUMNS(w), ww, 0, 1);
                gtk_widget_show(ww);

                uc->button = ww = gtk_button_new_with_label(browsebtn);
                columns_add(COLUMNS(w), ww, 1, 1);
                gtk_widget_show(ww);

		gtk_signal_connect(GTK_OBJECT(uc->entry), "key_press_event",
				   GTK_SIGNAL_FUNC(editbox_key), dp);
		gtk_signal_connect(GTK_OBJECT(uc->entry), "changed",
				   GTK_SIGNAL_FUNC(editbox_changed), dp);
                gtk_signal_connect(GTK_OBJECT(uc->entry), "focus_in_event",
                                   GTK_SIGNAL_FUNC(widget_focus), dp);
                gtk_signal_connect(GTK_OBJECT(uc->button), "focus_in_event",
                                   GTK_SIGNAL_FUNC(widget_focus), dp);
		gtk_signal_connect(GTK_OBJECT(ww), "clicked",
				   GTK_SIGNAL_FUNC(filefont_clicked), dp);
            }
            break;
          case CTRL_LISTBOX:
            if (ctrl->listbox.height == 0) {
                uc->optmenu = w = gtk_option_menu_new();
		uc->menu = gtk_menu_new();
		gtk_option_menu_set_menu(GTK_OPTION_MENU(w), uc->menu);
		gtk_object_set_data(GTK_OBJECT(uc->menu), "user-data",
				    (gpointer)uc->optmenu);
                gtk_signal_connect(GTK_OBJECT(uc->optmenu), "focus_in_event",
                                   GTK_SIGNAL_FUNC(widget_focus), dp);
            } else {
                uc->list = gtk_list_new();
                if (ctrl->listbox.multisel == 2) {
                    gtk_list_set_selection_mode(GTK_LIST(uc->list),
                                                GTK_SELECTION_EXTENDED);
                } else if (ctrl->listbox.multisel == 1) {
                    gtk_list_set_selection_mode(GTK_LIST(uc->list),
                                                GTK_SELECTION_MULTIPLE);
                } else {
                    gtk_list_set_selection_mode(GTK_LIST(uc->list),
                                                GTK_SELECTION_SINGLE);
                }
                w = gtk_scrolled_window_new(NULL, NULL);
                gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(w),
                                                      uc->list);
                gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(w),
                                               GTK_POLICY_NEVER,
                                               GTK_POLICY_AUTOMATIC);
                uc->adj = gtk_scrolled_window_get_vadjustment
                    (GTK_SCROLLED_WINDOW(w));

                gtk_widget_show(uc->list);
		gtk_signal_connect(GTK_OBJECT(uc->list), "selection-changed",
				   GTK_SIGNAL_FUNC(list_selchange), dp);
                gtk_signal_connect(GTK_OBJECT(uc->list), "focus_in_event",
                                   GTK_SIGNAL_FUNC(widget_focus), dp);

                /*
                 * Adjust the height of the scrolled window to the
                 * minimum given by the height parameter.
                 * 
                 * This piece of guesswork is a horrid hack based
                 * on looking inside the GTK 1.2 sources
                 * (specifically gtkviewport.c, which appears to be
                 * the widget which provides the border around the
                 * scrolling area). Anyone lets me know how I can
                 * do this in a way which isn't at risk from GTK
                 * upgrades, I'd be grateful.
                 */
		{
		    int edge = GTK_WIDGET(uc->list)->style->klass->ythickness;
                    gtk_widget_set_usize(w, 10,
                                         2*edge + (ctrl->listbox.height *
						   listitemheight));
		}

                if (ctrl->listbox.draglist) {