#include <stdio.h>
#include <stdlib.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>

#include "vpic.h"

Display *display;
Screen *screen;
int screen_number;
int depth;
Visual *visual;
Window root_window, window;
unsigned int winX = 100, winY = 100, winW = 800, winH = 600;
GC gc;

void vpicWindowInit(void) {
	MSGF("winX: %u winY: %u winW: %u winH: %u", winX, winY, winW, winH);
	
	display = XOpenDisplay(NULL);
	if (display == NULL) {
		printf("vpic error: Cannot open an X display!\n");
		exit(1);
	}

	screen = XDefaultScreenOfDisplay(display);
	screen_number = XScreenNumberOfScreen(screen);
	depth = XDefaultDepthOfScreen(screen);
	visual = XDefaultVisualOfScreen(screen);

	XSetWindowAttributes wattr;
	wattr.background_pixel = 0x040810;
	wattr.event_mask = KeyPressMask;
	root_window = XDefaultRootWindow(display);
	window = XCreateWindow(display, root_window,
				(int)winX, (int)winY, winW, winH, 2,
				depth, InputOutput,
				visual,
				CWBackPixel | CWEventMask,
				&wattr);

	XSizeHints wmsize;
	wmsize.flags = USPosition | USSize;
	XSetWMNormalHints(display, window, &wmsize);

	XWMHints wmhint;
	wmhint.initial_state = NormalState;
	wmhint.flags = StateHint;
	XSetWMHints(display, window, &wmhint);

	char *icon_name = "vpic icon";
	XTextProperty iname;
	XStringListToTextProperty(&icon_name, 1, &iname);
	XSetWMIconName(display, window, &iname);

	char *window_name = malloc(128);
	sprintf(window_name, "vpic %s", vpic_version_string);
	XTextProperty wname;
	XStringListToTextProperty(&window_name, 1, &wname);
	XSetWMName(display, window, &wname);
	free(window_name);

	XMapWindow(display, window);

	XGCValues gcv;
	gcv.foreground = 0x304050;
	gcv.background = 0x101010;
	gcv.line_width = 3;
	gc = XCreateGC(display, window, GCForeground | GCBackground | GCLineWidth, &gcv);

	MSGF("end");
}