/usr/share/doc/xviewg/examples/color/color_objs.c is in xview-examples 3.2p1.4-28.1.
This file is owned by root:root, with mode 0o644.
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* color_objs.c --
* This program demonstrates the use of color in XView. It allows
* the user to choose the foreground and background colors of the
* various objects in an interactive manner.
*/
#include <xview/xview.h>
#include <xview/svrimage.h>
#include <xview/textsw.h>
#include <xview/panel.h>
#include <xview/cms.h>
#include <xview/notice.h>
#define SELECT_TEXTSW 0
#define SELECT_TEXTSW_VIEW 1
#define SELECT_PANEL 2
#define SELECT_ICON 3
#define NUM_COLORS 8
/* Icon data */
static unsigned short icon_bits[] = {
#include "cardback.icon"
};
/* solid black square */
static unsigned short black_bits[] = {
0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF,
0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF
};
Panel_item objects;
Textsw textsw;
Panel panel;
Icon icon;
/*
* main()
* Create a panel and panel items. The application uses panel items
* to choose a particular object and change its foreground and
* background colors in an interactive manner. Create a textsw.
* Create an icon. All the objects share the same colormap segment.
*/
main(argc,argv)
int argc;
char *argv[];
{
Frame frame;
Panel_item color_choices, panel_fg_bg;
Cms cms;
int i;
Server_image chip, icon_image;
void color_notify();
extern void exit();
static Xv_singlecolor cms_colors[] = {
{ 255, 255, 255 }, /* white */
{ 255, 0, 0 }, /* red */
{ 0, 255, 0 }, /* green */
{ 0, 0, 255 }, /* blue */
{ 255, 255, 0 }, /* yellow */
{ 188, 143, 143 }, /* brown */
{ 220, 220, 220 }, /* gray */
{ 0, 0, 0 }, /* black */
};
xv_init(XV_INIT_ARGC_PTR_ARGV, &argc, argv, NULL);
frame = (Frame)xv_create(NULL, FRAME,
FRAME_LABEL, argv[0],
NULL);
cms = (Cms)xv_create(NULL, CMS,
CMS_NAME, "palette",
CMS_CONTROL_CMS, TRUE,
CMS_TYPE, XV_STATIC_CMS,
CMS_SIZE, CMS_CONTROL_COLORS + NUM_COLORS,
CMS_COLORS, cms_colors,
NULL);
/* Create panel and set the colormap segment on the panel */
panel = (Panel)xv_create(frame, PANEL,
PANEL_LAYOUT, PANEL_VERTICAL,
WIN_CMS, cms,
NULL);
/* Create panel items */
objects = (Panel_item)xv_create(panel, PANEL_TOGGLE,
PANEL_LABEL_STRING, "Objects",
PANEL_LAYOUT, PANEL_HORIZONTAL,
PANEL_CHOICE_STRINGS, "Textsw", "Textsw View",
"Panel", "Icon", NULL,
NULL);
panel_fg_bg = (Panel_item)xv_create(panel, PANEL_CHECK_BOX,
PANEL_LABEL_STRING, "Fg/Bg",
PANEL_CHOOSE_ONE, TRUE,
PANEL_LAYOUT, PANEL_HORIZONTAL,
PANEL_CHOICE_STRINGS, "Background", "Foreground", NULL,
NULL);
chip = (Server_image)xv_create(XV_NULL, SERVER_IMAGE,
XV_WIDTH, 16,
XV_HEIGHT, 16,
SERVER_IMAGE_DEPTH, 1,
SERVER_IMAGE_BITS, black_bits,
NULL);
color_choices = (Panel_item)xv_create(panel, PANEL_CHOICE,
PANEL_LAYOUT, PANEL_HORIZONTAL,
PANEL_LABEL_STRING, "Colors",
PANEL_CLIENT_DATA, panel_fg_bg,
XV_X, (int)xv_get(panel_fg_bg, XV_X),
PANEL_NEXT_ROW, 15,
PANEL_CHOICE_IMAGES,
chip, chip, chip, chip, chip, chip, chip, chip, NULL,
PANEL_CHOICE_COLOR, 0, CMS_CONTROL_COLORS + 0,
PANEL_CHOICE_COLOR, 1, CMS_CONTROL_COLORS + 1,
PANEL_CHOICE_COLOR, 2, CMS_CONTROL_COLORS + 2,
PANEL_CHOICE_COLOR, 3, CMS_CONTROL_COLORS + 3,
PANEL_CHOICE_COLOR, 4, CMS_CONTROL_COLORS + 4,
PANEL_CHOICE_COLOR, 5, CMS_CONTROL_COLORS + 5,
PANEL_CHOICE_COLOR, 6, CMS_CONTROL_COLORS + 6,
PANEL_CHOICE_COLOR, 7, CMS_CONTROL_COLORS + 7,
PANEL_NOTIFY_PROC, color_notify,
NULL);
(void) xv_create(panel, PANEL_BUTTON,
PANEL_LABEL_STRING, "Quit",
PANEL_NOTIFY_PROC, exit,
NULL);
(void)window_fit_height(panel);
/* create textsw and set the colormap segment for it */
textsw = (Textsw)xv_create(frame, TEXTSW,
WIN_CMS, cms,
WIN_BELOW, panel,
WIN_ROWS, 15,
WIN_COLUMNS, 80,
TEXTSW_FILE_CONTENTS, "/etc/motd",
WIN_BACKGROUND_COLOR, CMS_CONTROL_COLORS + 0,
NULL);
/* adjust panel dimensions */
(void)xv_set(panel, WIN_WIDTH, xv_get(textsw, WIN_WIDTH), NULL);
icon_image = (Server_image)xv_create(NULL, SERVER_IMAGE,
XV_WIDTH, 64,
XV_HEIGHT, 64,
SERVER_IMAGE_DEPTH, 1,
SERVER_IMAGE_BITS, icon_bits,
NULL);
/* associate icon with the base frame */
icon = (Icon)xv_create(XV_NULL, ICON,
ICON_IMAGE, icon_image,
WIN_CMS, cms,
WIN_BACKGROUND_COLOR, CMS_CONTROL_COLORS + 0,
NULL);
xv_set(frame, FRAME_ICON, icon, NULL);
window_fit(frame);
xv_main_loop(frame);
}
/*
* This routine gets called when a color selection is made.
* Set the foreground or background on the currently selected object.
* WIN_FOREGROUND_COLOR & WIN_BACKGROUND_COLOR allow the application
* to specify indices into the colormap segment as the foreground
* and background values.
*/
void
color_notify(panel_item, choice, event)
Panel_item panel_item;
int choice;
Event *event;
{
int cnt;
Xv_opaque object, get_object();
unsigned objs = (unsigned)xv_get(objects, PANEL_VALUE);
int fg = (int)xv_get(xv_get(panel_item, PANEL_CLIENT_DATA),
PANEL_VALUE);
/* the value of the objects panel item is a bit mask ... "on" bits
* mean that the choice is selected. Get the object associated
* with the choice and set it's color. "&" tests bits in a mask.
*/
for (cnt = 0; objs; cnt++, objs >>= 1)
if (objs & 1)
if ((object = get_object(cnt)) != panel)
xv_set(object,
fg? WIN_FOREGROUND_COLOR : WIN_BACKGROUND_COLOR,
CMS_CONTROL_COLORS + choice, NULL);
else if (fg)
PANEL_EACH_ITEM(panel, panel_item)
xv_set(panel_item,
PANEL_ITEM_COLOR, CMS_CONTROL_COLORS + choice,
NULL);
PANEL_END_EACH
else
notice_prompt(panel, NULL,
NOTICE_FOCUS_XY, event_x(event), event_y(event),
NOTICE_MESSAGE_STRINGS,
"You can't set the color of a panel.", NULL,
NOTICE_BUTTON_YES, "Ok",
NULL);
}
/*
* Return the XView handle to nth object.
*/
Xv_opaque
get_object(n)
int n;
{
switch (n) {
case SELECT_TEXTSW:
return textsw;
case SELECT_TEXTSW_VIEW:
return xv_get(textsw, OPENWIN_NTH_VIEW, 0);
case SELECT_PANEL:
return panel;
case SELECT_ICON:
return icon;
default:
return textsw;
}
}
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