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/* Copyright 1998 DJ Delorie <dj@delorie.com>
Distributed under the terms of the GNU GPL
http://www.delorie.com/store/hcalc/
Revisions copyright 2007,
Theodore Kilgore <kilgota@auburn.edu>
More revisions copyright 2023, B. Watson <urchlay@slackware.uk>
*/
#include "hcalc.h"
#include <stdlib.h>
int widths[3] = { 125, 250, 500 };
int heights[3] = { 147, 294, 588 };
int winsize = 2;
Display *display = 0;
int screen = 0;
Visual *visual = 0;
Colormap cmap = 0;
Window window = 0;
Window rootwin = 0;
GC gc = 0;
Atom wm_protocols_atom = 0;
Atom delete_atom = 0;
Atom paste_atom = 0;
XEvent event;
int bit_on, bit_off;
void setup_x(void) {
char *name = "hcalc";
if(winsize == 2)
scale_factor = 4;
else
scale_factor = winsize + 1;
XSizeHints size_hints;
XTextProperty xtp;
XSetWindowAttributes attributes;
XColor color;
display = XOpenDisplay(0);
screen = XDefaultScreen(display);
cmap = XDefaultColormap(display, screen);
visual = XDefaultVisual(display, screen);
rootwin = XDefaultRootWindow(display);
gc = XCreateGC(display, rootwin, 0, 0);
wm_protocols_atom = XInternAtom(display, "WM_PROTOCOLS", 0);
delete_atom = XInternAtom(display, "WM_DELETE_WINDOW", 0);
paste_atom = XInternAtom(display, "PASTE_DATA", 0);
size_hints.flags = PSize | PMinSize | PMaxSize;
size_hints.width = size_hints.min_width = size_hints.max_width =
widths[winsize];
size_hints.height = size_hints.min_height = size_hints.max_height =
heights[winsize];
size_hints.x = 0;
size_hints.y = 0;
window = XCreateWindow(display, rootwin, size_hints.x, size_hints.y, size_hints.width, size_hints.height, 0, CopyFromParent, /* depth */
InputOutput, CopyFromParent, /* visual */
0, 0);
XSetWMNormalHints(display, window, &size_hints);
XStringListToTextProperty(&name, 1, &xtp);
XSetWMName(display, window, &xtp);
XFree(xtp.value);
XSetWMProtocols(display, window, &delete_atom, 1);
attributes.event_mask = ExposureMask | ButtonPressMask | KeyPressMask;
XChangeWindowAttributes(display, window, CWEventMask, &attributes);
XMapWindow(display, window);
XFlush(display);
color.red = 0x6666;
color.green = 0xffff;
color.blue = 0x6666;
color.flags = DoRed | DoGreen | DoBlue;
XAllocColor(display, cmap, &color);
bit_on = color.pixel;
color.red = 0x3333;
color.green = 0xcccc;
color.blue = 0x3333;
color.flags = DoRed | DoGreen | DoBlue;
XAllocColor(display, cmap, &color);
bit_off = color.pixel;
}
void shutdown_x(void) {
XDestroyWindow(display, window);
XFreeGC(display, gc);
XCloseDisplay(display);
}
void process_input(void) {
char c;
KeySym keysym;
XTextProperty tprop;
show_value();
while(1) {
XNextEvent(display, &event);
if(event.xany.window == window) {
switch (event.type) {
case Expose:
if(event.xexpose.count == 0)
redraw();
break;
case KeyPress:
if(XLookupString(&event.xkey, &c, 1, &keysym, 0) == 1) {
key(c);
} else {
switch (keysym) {
case XK_F1:
key('D');
break;
case XK_F2:
key('H');
break;
case XK_F3:
key('O');
break;
case XK_F4:
key('B');
break;
case XK_Insert:
if(event.xkey.state & ShiftMask)
paste();
break;
}
}
break;
case ButtonPress:
button(event.xbutton.button, event.xbutton.x,
event.xbutton.y);
break;
case SelectionRequest:
send_current_display();
break;
case SelectionNotify:
if(event.xselection.property == paste_atom) {
XGetTextProperty(display, window, &tprop,
paste_atom);
complete_paste(tprop.value, tprop.nitems);
}
break;
}
if(event.type == ClientMessage
&& event.xclient.data.l[0] == delete_atom) {
/* printf( "Shutting down now!!!\n"); */
break;
}
}
}
XCloseDisplay(display);
}
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