Widget MakeDrawArea(int width, int height, RedisplayCB redisplay, void *data)
{
int n = 0;
Arg wargs[5]; /* Used to set widget resources */
Widget draw_widget;
DrawInfo *di;
if (lsx_curwin->toplevel == NULL && OpenDisplay(0, NULL) == 0)
return NULL;
di = (DrawInfo *)calloc(sizeof(DrawInfo), 1);
if (di == NULL)
return NULL;
n = 0;
XtSetArg(wargs[n], XtNwidth, width); n++;
XtSetArg(wargs[n], XtNheight,height); n++;
draw_widget = XtCreateManagedWidget("drawing_area", drawingAreaWidgetClass,
lsx_curwin->form_widget,wargs,n);
if (draw_widget == NULL)
{
free(di);
return NULL;
}
di->drawgc = setup_gc(draw_widget);
di->foreground = BlackPixel(lsx_curwin->display, lsx_curwin->screen);
di->background = WhitePixel(lsx_curwin->display, lsx_curwin->screen);
di->mask = 0xffffffff;
di->user_data = data;
di->redisplay = redisplay;
XtAddCallback(draw_widget, XtNexposeCallback, (XtCallbackProc)_redisplay,di);
XtAddCallback(draw_widget, XtNresizeCallback, (XtCallbackProc)_resize, di);
XtAddCallback(draw_widget, XtNinputCallback, (XtCallbackProc)_do_input, di);
XtAddCallback(draw_widget, XtNmotionCallback, (XtCallbackProc)_do_motion,di);
lsx_curwin->last_draw_widget = draw_widget;
di->widget = draw_widget;
di->next = draw_info_head;
draw_info_head = di;
cur_di = di;
/*
* Make sure the font is set to something sane.
*/
if (lsx_curwin->font == NULL)
lsx_curwin->font = GetFont("fixed");
SetWidgetFont(draw_widget, lsx_curwin->font);
return draw_widget;
}
int init_display(int argc, char **argv, MyProgram *me)
{
Widget w[25];
argc = OpenDisplay(argc, argv);
if (argc == FALSE)
return argc;
w[0] = MakeMenu("File");
w[1] = MakeMenuItem(w[0], "Load...", load, me);
w[2] = MakeMenuItem(w[0], "Save...", save, me);
w[3] = MakeMenuItem(w[0], "Quit", quit, me);
w[4] = MakeMenu("Edit");
w[5] = MakeMenuItem(w[4], "Check me", check_me, me);
w[6] = MakeMenuItem(w[4], "Copy", NULL, NULL);
w[7] = MakeMenuItem(w[4], "Paste", NULL, NULL);
w[8] = MakeButton("Color Stuff", do_stuff, me);
w[9] = MakeButton("More Stuff", more_stuff, me);
w[10] = MakeButton("Quit!", quit, me);
w[11] = MakeDrawArea(X_SIZE, Y_SIZE, redisplay, me);
w[12] = MakeScrollList(string_table, 125, 275, list_callback, NULL);
w[13] = MakeHorizScrollbar(X_SIZE, scroll_func, me);
w[14] = MakeHorizScrollbar(X_SIZE, scroll_func, me);
w[15] = MakeVertScrollbar(Y_SIZE, scroll_func, me);
w[16] = MakeToggle("Slow", TRUE, NULL, toggle1, me);
w[17] = MakeToggle("Fast", FALSE, w[16], toggle2, me);
w[18] = MakeToggle("Faster", FALSE, w[16], toggle3, me);
w[19] = MakeToggle("Fastest", FALSE, w[16], toggle4, me);
w[20] = MakeToggle("Toggle me", FALSE, NULL, other_toggle, me);
w[21] = MakeStringEntry("button.c", 435, string_func, me);
w[22] = MakeTextWidget("button.c", TRUE, TRUE, 435, 200);
w[23] = MakeLabel(" A Sample Libsx Demo Program (cool huh?)");
SetWidgetPos(w[4], PLACE_RIGHT, w[0], NO_CARE, NULL);
SetWidgetPos(w[8], PLACE_UNDER, w[0], NO_CARE, NULL);
SetWidgetPos(w[9], PLACE_UNDER, w[0], PLACE_RIGHT, w[8]);
SetWidgetPos(w[10], PLACE_UNDER, w[0], PLACE_RIGHT, w[9]);
SetWidgetPos(w[11], PLACE_UNDER, w[8], NO_CARE, NULL);
SetWidgetPos(w[13], PLACE_UNDER, w[11], NO_CARE, NULL);
SetWidgetPos(w[14], PLACE_UNDER, w[13], NO_CARE, NULL);
SetWidgetPos(w[15], PLACE_RIGHT, w[11], PLACE_UNDER, w[8]);
SetWidgetPos(w[12], PLACE_RIGHT, w[15], PLACE_UNDER, w[8]);
SetWidgetPos(w[16], PLACE_RIGHT, w[13], PLACE_UNDER, w[15]);
SetWidgetPos(w[17], PLACE_RIGHT, w[16], PLACE_UNDER, w[15]);
SetWidgetPos(w[18], PLACE_RIGHT, w[13], PLACE_UNDER, w[16]);
SetWidgetPos(w[19], PLACE_RIGHT, w[18], PLACE_UNDER, w[16]);
SetWidgetPos(w[20], PLACE_RIGHT, w[10], PLACE_UNDER, w[0]);
SetWidgetPos(w[21], PLACE_UNDER, w[18], NO_CARE, NULL);
SetWidgetPos(w[22], PLACE_UNDER, w[21], NO_CARE, NULL);
SetWidgetPos(w[23], PLACE_RIGHT, w[4], NO_CARE, NULL);
/*
* initialize the state of the toggle variables.
*/
me->toggle1 = TRUE;
me->toggle2 = me->toggle3 = me->toggle4 = me->other_toggle = FALSE;
me->list = w[12]; /* save these widget values for later */
me->str_entry = w[21];
me->text_widget = w[22];
me->draw_widget = w[11];
me->quit = w[10];
me->color_widget = w[8];
me->draw_font = GetFont("10x20");
if (me->draw_font == NULL)
me->draw_font = GetFont("fixed");
SetWidgetFont(me->draw_widget, me->draw_font);
SetButtonDownCB(w[11], button_down);
SetButtonUpCB(w[11], button_up);
SetKeypressCB(w[11], keypress);
SetScrollbar(w[13], 3.0, 14.0, 14.0);
SetScrollbar(w[14], 250.0, 255.0, 1.0);
SetScrollbar(w[15], 30.0, 100.0, 25.0);
/*
* Now actually put the display on the screen.
*/
ShowDisplay();
/*
* Get some colors for drawing with.
*/
GetStandardColors();
me->col1 = GetNamedColor("peachpuff2");
if (me->col1 == -1)
fprintf(stderr, "Error getting color peachpuff\n");
me->col2 = GetRGBColor(255, 0, 255);
if (me->col2 == -1)
fprintf(stderr, "Error getting RGB color 0 255 255\n");
return argc;
}
