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Initial revision
This commit is contained in:
Fred Pierresteguy
parent
142c76727e
commit
b70cfce2b5
2 changed files with 611 additions and 0 deletions
580
lwlib/lwlib-Xaw.c
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580
lwlib/lwlib-Xaw.c
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/* The lwlib interface to Athena widgets.
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Copyright (C) 1993 Chuck Thompson <cthomp@cs.uiuc.edu>
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This file is part of the Lucid Widget Library.
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The Lucid Widget Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 1, or (at your option)
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any later version.
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The Lucid Widget Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Emacs; see the file COPYING. If not, write to
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the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include <stdio.h>
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#include "lwlib-Xaw.h"
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#include <X11/StringDefs.h>
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#include <X11/IntrinsicP.h>
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#include <X11/CoreP.h>
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#include <X11/Shell.h>
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#include <X11/Xaw/Scrollbar.h>
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#include <X11/Xaw/Paned.h>
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#include <X11/Xaw/Dialog.h>
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#include <X11/Xaw/Form.h>
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#include <X11/Xaw/Command.h>
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#include <X11/Xaw/Label.h>
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#include <X11/Xatom.h>
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static void xaw_generic_callback (Widget, XtPointer, XtPointer);
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Boolean
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lw_xaw_widget_p (Widget widget)
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{
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return (XtIsSubclass (widget, scrollbarWidgetClass) ||
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XtIsSubclass (widget, dialogWidgetClass));
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}
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static void
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xaw_update_scrollbar (widget_instance *instance, Widget widget,
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widget_value *val)
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{
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#if 0
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if (val->scrollbar_data)
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{
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scrollbar_values *data = val->scrollbar_data;
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Dimension height, width;
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Dimension pos_x, pos_y;
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int widget_shown, widget_topOfThumb;
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float new_shown, new_topOfThumb;
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XtVaGetValues (widget,
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XtNheight, &height,
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XtNwidth, &width,
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XtNx, &pos_x,
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XtNy, &pos_y,
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XtNtopOfThumb, &widget_topOfThumb,
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XtNshown, &widget_shown,
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0);
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/*
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* First size and position the scrollbar widget.
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* We need to position it to second-guess the Paned widget's notion
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* of what should happen when the WMShell gets resized.
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*/
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if (height != data->scrollbar_height || pos_y != data->scrollbar_pos)
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{
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XtConfigureWidget (widget, pos_x, data->scrollbar_pos,
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width, data->scrollbar_height, 0);
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XtVaSetValues (widget,
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XtNlength, data->scrollbar_height,
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XtNthickness, width,
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0);
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}
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/*
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* Now the size the scrollbar's slider.
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*/
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new_shown = (float) data->slider_size /
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(float) (data->maximum - data->minimum);
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new_topOfThumb = (float) (data->slider_position - data->minimum) /
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(float) (data->maximum - data->minimum);
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if (new_shown > 1.0)
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new_shown = 1.0;
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if (new_shown < 0)
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new_shown = 0;
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if (new_topOfThumb > 1.0)
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new_topOfThumb = 1.0;
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if (new_topOfThumb < 0)
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new_topOfThumb = 0;
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if (new_shown != widget_shown || new_topOfThumb != widget_topOfThumb)
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XawScrollbarSetThumb (widget, new_topOfThumb, new_shown);
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}
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#endif
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}
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void
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xaw_update_one_widget (widget_instance *instance, Widget widget,
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widget_value *val, Boolean deep_p)
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{
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if (XtIsSubclass (widget, scrollbarWidgetClass))
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{
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xaw_update_scrollbar (instance, widget, val);
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}
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else if (XtIsSubclass (widget, dialogWidgetClass))
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{
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XtVaSetValues (widget, XtNlabel, val->contents->value, 0);
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}
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else if (XtIsSubclass (widget, commandWidgetClass))
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{
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Dimension bw = 0;
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XtVaGetValues (widget, XtNborderWidth, &bw, 0);
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if (bw == 0)
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/* Don't let buttons end up with 0 borderwidth, that's ugly...
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Yeah, all this should really be done through app-defaults files
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or fallback resources, but that's a whole different can of worms
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that I don't feel like opening right now. Making Athena widgets
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not look like shit is just entirely too much work.
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*/
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XtVaSetValues (widget, XtNborderWidth, 1, 0);
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XtVaSetValues (widget,
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XtNlabel, val->value,
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XtNsensitive, val->enabled,
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/* Force centered button text. Se above. */
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XtNjustify, XtJustifyCenter,
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0);
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XtRemoveAllCallbacks (widget, XtNcallback);
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XtAddCallback (widget, XtNcallback, xaw_generic_callback, instance);
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}
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}
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void
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xaw_update_one_value (widget_instance *instance, Widget widget,
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widget_value *val)
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{
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/* This function is not used by the scrollbars and those are the only
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Athena widget implemented at the moment so do nothing. */
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return;
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}
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void
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xaw_destroy_instance (widget_instance *instance)
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{
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if (XtIsSubclass (instance->widget, dialogWidgetClass))
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/* Need to destroy the Shell too. */
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XtDestroyWidget (XtParent (instance->widget));
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else
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XtDestroyWidget (instance->widget);
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}
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void
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xaw_popup_menu (Widget widget)
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{
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/* An Athena menubar has not been implemented. */
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return;
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}
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void
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xaw_pop_instance (widget_instance *instance, Boolean up)
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{
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Widget widget = instance->widget;
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if (up)
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{
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if (XtIsSubclass (widget, dialogWidgetClass))
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{
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/* For dialogs, we need to call XtPopup on the parent instead
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of calling XtManageChild on the widget.
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Also we need to hack the shell's WM_PROTOCOLS to get it to
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understand what the close box is supposed to do!!
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*/
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Display *dpy = XtDisplay (widget);
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Widget shell = XtParent (widget);
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Atom props [2];
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int i = 0;
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props [i++] = XInternAtom (dpy, "WM_DELETE_WINDOW", False);
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XChangeProperty (dpy, XtWindow (shell),
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XInternAtom (dpy, "WM_PROTOCOLS", False),
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XA_ATOM, 32, PropModeAppend,
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(unsigned char *) props, i);
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/* Center the widget in its parent. Why isn't this kind of crap
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done automatically? I thought toolkits were supposed to make
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life easier?
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*/
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{
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int x, y, w, h;
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Widget topmost = instance->parent;
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w = shell->core.width;
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h = shell->core.height;
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while (topmost->core.parent && XtIsRealized (topmost->core.parent))
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topmost = topmost->core.parent;
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if (topmost->core.width < w) x = topmost->core.x;
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else x = topmost->core.x + ((topmost->core.width - w) / 2);
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if (topmost->core.height < h) y = topmost->core.y;
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else y = topmost->core.y + ((topmost->core.height - h) / 2);
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XtMoveWidget (shell, x, y);
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}
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/* Finally, pop it up. */
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XtPopup (shell, XtGrabNonexclusive);
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}
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else
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XtManageChild (widget);
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}
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else
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{
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if (XtIsSubclass (widget, dialogWidgetClass))
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XtUnmanageChild (XtParent (widget));
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else
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XtUnmanageChild (widget);
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}
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}
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/* Dialog boxes */
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static char overrideTrans[] =
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"<Message>WM_PROTOCOLS: lwlib_delete_dialog()";
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static void wm_delete_window();
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static XtActionsRec xaw_actions [] = {
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{"lwlib_delete_dialog", wm_delete_window}
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};
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static Boolean actions_initted = False;
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static Widget
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make_dialog (char* name, Widget parent, Boolean pop_up_p,
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char* shell_title, char* icon_name, Boolean text_input_slot,
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Boolean radio_box, Boolean list,
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int left_buttons, int right_buttons)
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{
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Arg av [20];
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int ac = 0;
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int i, bc;
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char button_name [255];
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Widget shell;
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Widget dialog;
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Widget button;
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XtTranslations override;
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if (! pop_up_p) abort (); /* not implemented */
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if (text_input_slot) abort (); /* not implemented */
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if (radio_box) abort (); /* not implemented */
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if (list) abort (); /* not implemented */
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if (! actions_initted)
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{
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XtAppContext app = XtWidgetToApplicationContext (parent);
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XtAppAddActions (app, xaw_actions,
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sizeof (xaw_actions) / sizeof (xaw_actions[0]));
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actions_initted = True;
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}
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override = XtParseTranslationTable (overrideTrans);
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ac = 0;
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XtSetArg (av[ac], XtNtitle, shell_title); ac++;
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XtSetArg (av[ac], XtNallowShellResize, True); ac++;
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shell = XtCreatePopupShell ("dialog", transientShellWidgetClass,
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parent, av, ac);
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XtOverrideTranslations (shell, override);
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ac = 0;
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dialog = XtCreateManagedWidget (name, dialogWidgetClass, shell, av, ac);
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bc = 0;
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button = 0;
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for (i = 0; i < left_buttons; i++)
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{
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ac = 0;
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XtSetArg (av [ac], XtNfromHoriz, button); ac++;
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XtSetArg (av [ac], XtNleft, XtChainLeft); ac++;
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XtSetArg (av [ac], XtNright, XtChainLeft); ac++;
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XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
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XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
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XtSetArg (av [ac], XtNresizable, True); ac++;
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sprintf (button_name, "button%d", ++bc);
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button = XtCreateManagedWidget (button_name, commandWidgetClass,
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dialog, av, ac);
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}
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if (right_buttons)
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{
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/* Create a separator
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I want the separator to take up the slack between the buttons on
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the right and the buttons on the left (that is I want the buttons
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after the separator to be packed against the right edge of the
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window) but I can't seem to make it do it.
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*/
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ac = 0;
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XtSetArg (av [ac], XtNfromHoriz, button); ac++;
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/* XtSetArg (av [ac], XtNfromVert, XtNameToWidget (dialog, "label")); ac++; */
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XtSetArg (av [ac], XtNleft, XtChainLeft); ac++;
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XtSetArg (av [ac], XtNright, XtChainRight); ac++;
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XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
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XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
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XtSetArg (av [ac], XtNlabel, ""); ac++;
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XtSetArg (av [ac], XtNwidth, 30); ac++; /* #### aaack!! */
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XtSetArg (av [ac], XtNborderWidth, 0); ac++;
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XtSetArg (av [ac], XtNshapeStyle, XmuShapeRectangle); ac++;
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XtSetArg (av [ac], XtNresizable, False); ac++;
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XtSetArg (av [ac], XtNsensitive, False); ac++;
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button = XtCreateManagedWidget ("separator",
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/* labelWidgetClass, */
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/* This has to be Command to fake out
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the Dialog widget... */
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commandWidgetClass,
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dialog, av, ac);
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}
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for (i = 0; i < right_buttons; i++)
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{
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ac = 0;
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XtSetArg (av [ac], XtNfromHoriz, button); ac++;
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XtSetArg (av [ac], XtNleft, XtChainRight); ac++;
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XtSetArg (av [ac], XtNright, XtChainRight); ac++;
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XtSetArg (av [ac], XtNtop, XtChainBottom); ac++;
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XtSetArg (av [ac], XtNbottom, XtChainBottom); ac++;
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XtSetArg (av [ac], XtNresizable, True); ac++;
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sprintf (button_name, "button%d", ++bc);
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button = XtCreateManagedWidget (button_name, commandWidgetClass,
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dialog, av, ac);
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}
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return dialog;
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}
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Widget
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xaw_create_dialog (widget_instance* instance)
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{
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char *name = instance->info->type;
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Widget parent = instance->parent;
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Widget widget;
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Boolean pop_up_p = instance->pop_up_p;
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char *shell_name = 0;
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char *icon_name;
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Boolean text_input_slot = False;
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Boolean radio_box = False;
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Boolean list = False;
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int total_buttons;
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int left_buttons = 0;
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int right_buttons = 1;
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switch (name [0]) {
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case 'E': case 'e':
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icon_name = "dbox-error";
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shell_name = "Error";
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break;
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case 'I': case 'i':
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icon_name = "dbox-info";
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shell_name = "Information";
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break;
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case 'L': case 'l':
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list = True;
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icon_name = "dbox-question";
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shell_name = "Prompt";
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break;
|
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case 'P': case 'p':
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text_input_slot = True;
|
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icon_name = "dbox-question";
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shell_name = "Prompt";
|
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break;
|
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case 'Q': case 'q':
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icon_name = "dbox-question";
|
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shell_name = "Question";
|
||||
break;
|
||||
}
|
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total_buttons = name [1] - '0';
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if (name [3] == 'T' || name [3] == 't')
|
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{
|
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text_input_slot = False;
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radio_box = True;
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}
|
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else if (name [3])
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right_buttons = name [4] - '0';
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left_buttons = total_buttons - right_buttons;
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widget = make_dialog (name, parent, pop_up_p,
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shell_name, icon_name, text_input_slot, radio_box,
|
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list, left_buttons, right_buttons);
|
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|
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return widget;
|
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}
|
||||
|
||||
|
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static void
|
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xaw_generic_callback (Widget widget, XtPointer closure, XtPointer call_data)
|
||||
{
|
||||
widget_instance *instance = (widget_instance *) closure;
|
||||
Widget instance_widget;
|
||||
LWLIB_ID id;
|
||||
XtPointer user_data;
|
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|
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lw_internal_update_other_instances (widget, closure, call_data);
|
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|
||||
if (! instance)
|
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return;
|
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if (widget->core.being_destroyed)
|
||||
return;
|
||||
|
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instance_widget = instance->widget;
|
||||
if (!instance_widget)
|
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return;
|
||||
|
||||
id = instance->info->id;
|
||||
|
||||
#if 0
|
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user_data = NULL;
|
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XtVaGetValues (widget, XtNuserData, &user_data, 0);
|
||||
#else
|
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/* Damn! Athena doesn't give us a way to hang our own data on the
|
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buttons, so we have to go find it... I guess this assumes that
|
||||
all instances of a button have the same call data. */
|
||||
{
|
||||
widget_value *val = instance->info->val->contents;
|
||||
char *name = XtName (widget);
|
||||
while (val)
|
||||
{
|
||||
if (val->name && !strcmp (val->name, name))
|
||||
break;
|
||||
val = val->next;
|
||||
}
|
||||
if (! val) abort ();
|
||||
user_data = val->call_data;
|
||||
}
|
||||
#endif
|
||||
|
||||
if (instance->info->selection_cb)
|
||||
instance->info->selection_cb (widget, id, user_data);
|
||||
}
|
||||
|
||||
static void
|
||||
wm_delete_window (Widget shell, XtPointer closure, XtPointer call_data)
|
||||
{
|
||||
LWLIB_ID id;
|
||||
Widget *kids = 0;
|
||||
Widget widget;
|
||||
if (! XtIsSubclass (shell, shellWidgetClass))
|
||||
abort ();
|
||||
XtVaGetValues (shell, XtNchildren, &kids, 0);
|
||||
if (!kids || !*kids)
|
||||
abort ();
|
||||
widget = kids [0];
|
||||
if (! XtIsSubclass (widget, dialogWidgetClass))
|
||||
abort ();
|
||||
id = lw_get_widget_id (widget);
|
||||
if (! id) abort ();
|
||||
|
||||
{
|
||||
widget_info *info = lw_get_widget_info (id);
|
||||
if (! info) abort ();
|
||||
if (info->selection_cb)
|
||||
info->selection_cb (widget, id, (XtPointer) -1);
|
||||
}
|
||||
|
||||
lw_destroy_all_widgets (id);
|
||||
}
|
||||
|
||||
|
||||
/* Scrollbars */
|
||||
|
||||
static void
|
||||
xaw_scrollbar_scroll (Widget widget, XtPointer closure, XtPointer call_data)
|
||||
{
|
||||
#if 0
|
||||
widget_instance *instance = (widget_instance *) closure;
|
||||
LWLIB_ID id;
|
||||
scroll_event event_data;
|
||||
|
||||
if (!instance || widget->core.being_destroyed)
|
||||
return;
|
||||
|
||||
id = instance->info->id;
|
||||
event_data.slider_value = 0;
|
||||
event_data.time = 0;
|
||||
|
||||
if ((int) call_data > 0)
|
||||
event_data.action = SCROLLBAR_PAGE_DOWN;
|
||||
else
|
||||
event_data.action = SCROLLBAR_PAGE_UP;
|
||||
|
||||
if (instance->info->pre_activate_cb)
|
||||
instance->info->pre_activate_cb (widget, id, (XtPointer) &event_data);
|
||||
#endif
|
||||
}
|
||||
|
||||
static void
|
||||
xaw_scrollbar_jump (Widget widget, XtPointer closure, XtPointer call_data)
|
||||
{
|
||||
#if 0
|
||||
widget_instance *instance = (widget_instance *) closure;
|
||||
LWLIB_ID id;
|
||||
scroll_event event_data;
|
||||
scrollbar_values *val =
|
||||
(scrollbar_values *) instance->info->val->scrollbar_data;
|
||||
float percent;
|
||||
|
||||
if (!instance || widget->core.being_destroyed)
|
||||
return;
|
||||
|
||||
id = instance->info->id;
|
||||
|
||||
percent = * (float *) call_data;
|
||||
event_data.slider_value =
|
||||
(int) (percent * (float) (val->maximum - val->minimum)) + val->minimum;
|
||||
|
||||
event_data.time = 0;
|
||||
event_data.action = SCROLLBAR_DRAG;
|
||||
|
||||
if (instance->info->pre_activate_cb)
|
||||
instance->info->pre_activate_cb (widget, id, (XtPointer) &event_data);
|
||||
#endif
|
||||
}
|
||||
|
||||
static Widget
|
||||
xaw_create_scrollbar (widget_instance *instance)
|
||||
{
|
||||
#if 0
|
||||
Arg av[20];
|
||||
int ac = 0;
|
||||
Dimension width;
|
||||
Widget scrollbar;
|
||||
|
||||
XtVaGetValues (instance->parent, XtNwidth, &width, 0);
|
||||
|
||||
XtSetArg (av[ac], XtNshowGrip, 0); ac++;
|
||||
XtSetArg (av[ac], XtNresizeToPreferred, 1); ac++;
|
||||
XtSetArg (av[ac], XtNallowResize, True); ac++;
|
||||
XtSetArg (av[ac], XtNskipAdjust, True); ac++;
|
||||
XtSetArg (av[ac], XtNwidth, width); ac++;
|
||||
XtSetArg (av[ac], XtNmappedWhenManaged, True); ac++;
|
||||
|
||||
scrollbar =
|
||||
XtCreateWidget (instance->info->name, scrollbarWidgetClass,
|
||||
instance->parent, av, ac);
|
||||
|
||||
/* We have to force the border width to be 0 otherwise the
|
||||
geometry manager likes to start looping for awhile... */
|
||||
XtVaSetValues (scrollbar, XtNborderWidth, 0, 0);
|
||||
|
||||
XtRemoveAllCallbacks (scrollbar, "jumpProc");
|
||||
XtRemoveAllCallbacks (scrollbar, "scrollProc");
|
||||
|
||||
XtAddCallback (scrollbar, "jumpProc", xaw_scrollbar_jump,
|
||||
(XtPointer) instance);
|
||||
XtAddCallback (scrollbar, "scrollProc", xaw_scrollbar_scroll,
|
||||
(XtPointer) instance);
|
||||
|
||||
return scrollbar;
|
||||
#endif
|
||||
}
|
||||
|
||||
widget_creation_entry
|
||||
xaw_creation_table [] =
|
||||
{
|
||||
{"scrollbar", xaw_create_scrollbar},
|
||||
{NULL, NULL}
|
||||
};
|
||||
31
lwlib/lwlib-Xaw.h
Normal file
31
lwlib/lwlib-Xaw.h
Normal file
|
|
@ -0,0 +1,31 @@
|
|||
#ifndef LWLIB_XAW_H
|
||||
#define LWLIB_XAW_H
|
||||
|
||||
#include "lwlib-int.h"
|
||||
|
||||
extern widget_creation_entry xaw_creation_table [];
|
||||
|
||||
Widget
|
||||
xaw_create_dialog (widget_instance* instance);
|
||||
|
||||
Boolean
|
||||
lw_xaw_widget_p (Widget widget);
|
||||
|
||||
void
|
||||
xaw_update_one_widget (widget_instance *instance, Widget widget,
|
||||
widget_value *val, Boolean deep_p);
|
||||
|
||||
void
|
||||
xaw_update_one_value (widget_instance* instance, Widget widget,
|
||||
widget_value* val);
|
||||
|
||||
void
|
||||
xaw_destroy_instance (widget_instance* instance);
|
||||
|
||||
void
|
||||
xaw_popup_menu (Widget widget);
|
||||
|
||||
void
|
||||
xaw_pop_instance (widget_instance* instance, Boolean up);
|
||||
|
||||
#endif /* LWLIB_XAW_H */
|
||||
Loading…
Add table
Add a link
Reference in a new issue