Example #1
0
LRESULT CALLBACK
viewproc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
	static int oldx = 0;
	static int oldy = 0;
	int x = (signed short) LOWORD(lParam);
	int y = (signed short) HIWORD(lParam);

	switch (message)
	{
	case WM_SIZE:
		if (wParam == SIZE_MINIMIZED)
			return 0;
		if (wParam == SIZE_MAXIMIZED)
			gapp.shrinkwrap = 0;
		pdfapp_onresize(&gapp, LOWORD(lParam), HIWORD(lParam));
		break;

	/* Paint events are low priority and automagically catenated
	 * so we don't need to do any fancy waiting to defer repainting.
	 */
	case WM_PAINT:
	{
		//puts("WM_PAINT");
		PAINTSTRUCT ps;
		hdc = BeginPaint(hwnd, &ps);
		winblit();
		hdc = NULL;
		EndPaint(hwnd, &ps);
		pdfapp_postblit(&gapp);
		return 0;
	}

	case WM_ERASEBKGND:
		return 1; // well, we don't need to erase to redraw cleanly

	/* Mouse events */

	case WM_LBUTTONDOWN:
		SetFocus(hwndview);
		oldx = x; oldy = y;
		handlemouse(x, y, 1, 1);
		return 0;
	case WM_MBUTTONDOWN:
		SetFocus(hwndview);
		oldx = x; oldy = y;
		handlemouse(x, y, 2, 1);
		return 0;
	case WM_RBUTTONDOWN:
		SetFocus(hwndview);
		oldx = x; oldy = y;
		handlemouse(x, y, 3, 1);
		return 0;

	case WM_LBUTTONUP:
		oldx = x; oldy = y;
		handlemouse(x, y, 1, -1);
		return 0;
	case WM_MBUTTONUP:
		oldx = x; oldy = y;
		handlemouse(x, y, 2, -1);
		return 0;
	case WM_RBUTTONUP:
		oldx = x; oldy = y;
		handlemouse(x, y, 3, -1);
		return 0;

	case WM_MOUSEMOVE:
		oldx = x; oldy = y;
		handlemouse(x, y, 0, 0);
		return 0;

	/* Mouse wheel */

	case WM_MOUSEWHEEL:
		if ((signed short)HIWORD(wParam) <= 0)
		{
			handlemouse(oldx, oldy, 4, 1);
			handlemouse(oldx, oldy, 4, -1);
		}
		else
		{
			handlemouse(oldx, oldy, 5, 1);
			handlemouse(oldx, oldy, 5, -1);
		}
		return 0;

	/* Timer */
	case WM_TIMER:
		if (wParam == OUR_TIMER_ID && timer_pending && gapp.presentation_mode)
		{
			timer_pending = 0;
			handlekey(VK_RIGHT + 256);
			handlemouse(oldx, oldy, 0, 0); /* update cursor */
			return 0;
		}
		break;

	/* Keyboard events */

	case WM_KEYDOWN:
		/* only handle special keys */
		switch (wParam)
		{
		case VK_F1:
		case VK_LEFT:
		case VK_UP:
		case VK_PRIOR:
		case VK_RIGHT:
		case VK_DOWN:
		case VK_NEXT:
		case VK_ESCAPE:
			handlekey(wParam + 256);
			handlemouse(oldx, oldy, 0, 0);	/* update cursor */
			return 0;
		}
		return 1;

	/* unicode encoded chars, including escape, backspace etc... */
	case WM_CHAR:
		if (wParam < 256)
		{
			handlekey(wParam);
			handlemouse(oldx, oldy, 0, 0);	/* update cursor */
		}
		return 0;

	/* We use WM_APP to trigger a reload and repaint of a page */
	case WM_APP:
		pdfapp_reloadpage(&gapp);
		break;

	}

	fflush(stdout);

	/* Pass on unhandled events to Windows */
	return DefWindowProc(hwnd, message, wParam, lParam);
}
Example #2
0
int main(int argc, char **argv)
{
	int c;
	int len;
	char buf[128];
	KeySym keysym;
	int oldx = 0;
	int oldy = 0;
	int resolution = -1;
	int pageno = 1;
	fd_set fds;
	int width = -1;
	int height = -1;
	fz_context *ctx;
	struct timeval tmo_at;
	struct timeval now;
	struct timeval tmo;
	struct timeval *timeout;
	struct timeval tmo_advance_delay;

	ctx = fz_new_context(NULL, NULL, FZ_STORE_DEFAULT);
	if (!ctx)
	{
		fprintf(stderr, "cannot initialise context\n");
		exit(1);
	}

	while ((c = fz_getopt(argc, argv, "p:r:b:")) != -1)
	{
		switch (c)
		{
		case 'p': password = fz_optarg; break;
		case 'r': resolution = atoi(fz_optarg); break;
		case 'b': fz_set_aa_level(ctx, atoi(fz_optarg)); break;
		default: usage();
		}
	}

	if (argc - fz_optind == 0)
		usage();

	filename = argv[fz_optind++];

	if (argc - fz_optind == 1)
		pageno = atoi(argv[fz_optind++]);

	pdfapp_init(ctx, &gapp);

	winopen();

	if (resolution == -1)
		resolution = winresolution();
	if (resolution < MINRES)
		resolution = MINRES;
	if (resolution > MAXRES)
		resolution = MAXRES;

	gapp.transitions_enabled = 1;
	gapp.scrw = DisplayWidth(xdpy, xscr);
	gapp.scrh = DisplayHeight(xdpy, xscr);
	gapp.resolution = resolution;
	gapp.pageno = pageno;

	pdfapp_open(&gapp, filename, 0);

	FD_ZERO(&fds);

	signal(SIGHUP, signal_handler);

	tmo_at.tv_sec = 0;
	tmo_at.tv_usec = 0;

	while (!closing)
	{
		while (!closing && XPending(xdpy) && !transition_dirty)
		{
			XNextEvent(xdpy, &xevt);

			switch (xevt.type)
			{
			case Expose:
				dirty = 1;
				break;

			case ConfigureNotify:
				if (gapp.image)
				{
					if (xevt.xconfigure.width != reqw ||
						xevt.xconfigure.height != reqh)
						gapp.shrinkwrap = 0;
				}
				width = xevt.xconfigure.width;
				height = xevt.xconfigure.height;

				break;

			case KeyPress:
				len = XLookupString(&xevt.xkey, buf, sizeof buf, &keysym, NULL);

				if (!gapp.isediting)
					switch (keysym)
					{
					case XK_Escape:
						len = 1; buf[0] = '\033';
						break;

					case XK_Up:
						len = 1; buf[0] = 'k';
						break;
					case XK_Down:
						len = 1; buf[0] = 'j';
						break;

					case XK_Left:
						len = 1; buf[0] = 'b';
						break;
					case XK_Right:
						len = 1; buf[0] = ' ';
						break;

					case XK_Page_Up:
						len = 1; buf[0] = ',';
						break;
					case XK_Page_Down:
						len = 1; buf[0] = '.';
						break;
					}
				if (xevt.xkey.state & ControlMask && keysym == XK_c)
					docopy(&gapp, XA_CLIPBOARD);
				else if (len)
					onkey(buf[0]);

				onmouse(oldx, oldy, 0, 0, 0);

				break;

			case MotionNotify:
				oldx = xevt.xmotion.x;
				oldy = xevt.xmotion.y;
				onmouse(xevt.xmotion.x, xevt.xmotion.y, 0, xevt.xmotion.state, 0);
				break;

			case ButtonPress:
				onmouse(xevt.xbutton.x, xevt.xbutton.y, xevt.xbutton.button, xevt.xbutton.state, 1);
				break;

			case ButtonRelease:
				copytime = xevt.xbutton.time;
				onmouse(xevt.xbutton.x, xevt.xbutton.y, xevt.xbutton.button, xevt.xbutton.state, -1);
				break;

			case SelectionRequest:
				onselreq(xevt.xselectionrequest.requestor,
					xevt.xselectionrequest.selection,
					xevt.xselectionrequest.target,
					xevt.xselectionrequest.property,
					xevt.xselectionrequest.time);
				break;

			case ClientMessage:
				if (xevt.xclient.format == 32 && xevt.xclient.data.l[0] == WM_DELETE_WINDOW)
					closing = 1;
				break;
			}
		}

		if (closing)
			continue;

		if (width != -1 || height != -1)
		{
			pdfapp_onresize(&gapp, width, height);
			width = -1;
			height = -1;
		}

		if (dirty || dirtysearch)
		{
			if (dirty)
				winblit(&gapp);
			else if (dirtysearch)
				winblitsearch(&gapp);
			dirty = 0;
			transition_dirty = 0;
			dirtysearch = 0;
			pdfapp_postblit(&gapp);
		}

		if (showingpage && !tmo_at.tv_sec && !tmo_at.tv_usec)
		{
			tmo.tv_sec = 2;
			tmo.tv_usec = 0;

			gettimeofday(&now, NULL);
			timeradd(&now, &tmo, &tmo_at);
		}

		if (XPending(xdpy) || transition_dirty)
			continue;

		timeout = NULL;

		if (tmo_at.tv_sec || tmo_at.tv_usec)
		{
			gettimeofday(&now, NULL);
			timersub(&tmo_at, &now, &tmo);
			if (tmo.tv_sec <= 0)
			{
				tmo_at.tv_sec = 0;
				tmo_at.tv_usec = 0;
				timeout = NULL;
				showingpage = 0;
				winrepaint(&gapp);
			}
			else
				timeout = &tmo;
		}

		if (advance_scheduled)
		{
			gettimeofday(&now, NULL);
			timersub(&tmo_advance, &now, &tmo_advance_delay);
			if (tmo_advance_delay.tv_sec <= 0)
			{
				/* Too late already */
				onkey(' ');
				onmouse(oldx, oldy, 0, 0, 0);
				advance_scheduled = 0;
			}
			else if (timeout == NULL)
			{
				timeout = &tmo_advance_delay;
			}
			else
			{
				struct timeval tmp;
				timersub(&tmo_advance_delay, timeout, &tmp);
				if (tmp.tv_sec < 0)
				{
					timeout = &tmo_advance_delay;
				}
			}
		}

		FD_SET(x11fd, &fds);
		if (select(x11fd + 1, &fds, NULL, NULL, timeout) < 0)
		{
			if (reloading)
			{
				winreloadfile(&gapp);
				reloading = 0;
			}
		}
		if (!FD_ISSET(x11fd, &fds))
		{
			if (timeout == &tmo_advance_delay)
			{
				onkey(' ');
				onmouse(oldx, oldy, 0, 0, 0);
				advance_scheduled = 0;
			}
			else
			{
				tmo_at.tv_sec = 0;
				tmo_at.tv_usec = 0;
				timeout = NULL;
				showingpage = 0;
				winrepaint(&gapp);
			}
		}
	}

	cleanup(&gapp);

	return 0;
}