+#include <vector>
+#ifndef WIN32
+#include <X11/Xatom.h>
+#include <X11/Xutil.h>
+#ifdef WITH_XF86VIDMODE
+#include <X11/extensions/xf86vmode.h>
+#endif
+#else
+#include <windowsx.h>
+#endif
+#include <msp/core/application.h>
+#include "display.h"
+#include "window.h"
+#include "display_priv.h"
+
+using namespace std;
+
+namespace {
+
+#ifdef WIN32
+LRESULT CALLBACK wndproc_(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
+{
+ if(msg==WM_CREATE)
+ {
+ CREATESTRUCT *cs = reinterpret_cast<CREATESTRUCT *>(lparam);
+ SetWindowLong(hwnd, 0, reinterpret_cast<LONG>(cs->lpCreateParams));
+ }
+ else
+ {
+ Msp::Graphics::Window *wnd = reinterpret_cast<Msp::Graphics::Window *>(GetWindowLong(hwnd, 0));
+ Msp::Graphics::Window::Event ev;
+ ev.msg = msg;
+ ev.wparam = wparam;
+ ev.lparam = lparam;
+ if(wnd && wnd->event(ev))
+ return 0;
+ }
+
+ return DefWindowProc(hwnd, msg, wparam, lparam);
+}
+#else
+Bool match_event_type(Display *, XEvent *event, XPointer arg)
+{
+ return event->type==*reinterpret_cast<int *>(arg);
+}
+#endif
+
+}
+
+namespace Msp {
+namespace Graphics {
+
+WindowOptions::WindowOptions():
+ width(640),
+ height(480),
+ fullscreen(false),
+ resizable(false)
+{ }
+
+
+Window::Window(Display &dpy, unsigned w, unsigned h, bool fs):
+ display(dpy)
+{
+ options.width = w;
+ options.height = h;
+ options.fullscreen = fs;
+
+ init();
+}
+
+Window::Window(Display &dpy, const WindowOptions &opts):
+ display(dpy),
+ options(opts)
+{
+ init();
+}
+
+void Window::init()
+{
+ visible = false;
+ kbd_autorepeat = true;
+ resizing = false;
+ priv = new Private;
+
+#ifdef WIN32
+ static bool wndclass_created = false;
+
+ if(!wndclass_created)
+ {
+ WNDCLASSEX wndcl;
+
+ wndcl.cbSize = sizeof(WNDCLASSEX);
+ wndcl.style = 0;
+ wndcl.lpfnWndProc = &wndproc_;
+ wndcl.cbClsExtra = 0;
+ wndcl.cbWndExtra = sizeof(Window *);
+ wndcl.hInstance = reinterpret_cast<HINSTANCE>(Application::get_data());
+ wndcl.hIcon = 0;
+ wndcl.hCursor = LoadCursor(0, IDC_ARROW);
+ wndcl.hbrBackground = 0;
+ wndcl.lpszMenuName = 0;
+ wndcl.lpszClassName = "mspgbase";
+ wndcl.hIconSm = 0;
+
+ if(!RegisterClassEx(&wndcl))
+ throw system_error("RegisterClassEx");
+
+ wndclass_created = true;
+ }
+
+ RECT rect;
+ SetRect(&rect, 0, 0, options.width, options.height);
+
+ int style = (options.fullscreen ? WS_POPUP : WS_OVERLAPPEDWINDOW);
+ if(!options.resizable)
+ style &= ~WS_THICKFRAME;
+ int exstyle = (options.fullscreen ? WS_EX_APPWINDOW : WS_EX_OVERLAPPEDWINDOW);
+ AdjustWindowRectEx(&rect, style, false, exstyle);
+
+ priv->window = CreateWindowEx(exstyle,
+ "mspgbase",
+ "Window",
+ style,
+ CW_USEDEFAULT, CW_USEDEFAULT,
+ rect.right-rect.left, rect.bottom-rect.top,
+ 0,
+ 0,
+ reinterpret_cast<HINSTANCE>(Application::get_data()),
+ this);
+ if(!priv->window)
+ throw system_error("CreateWindowEx");
+
+#else
+ ::Display *dpy = display.get_private().display;
+
+ priv->wm_delete_window = XInternAtom(dpy, "WM_DELETE_WINDOW", true);
+ priv->invisible_cursor = 0;
+
+ XSetWindowAttributes attr;
+ attr.override_redirect = options.fullscreen;
+ attr.event_mask = ButtonPressMask|ButtonReleaseMask|PointerMotionMask|KeyPressMask|KeyReleaseMask|StructureNotifyMask|EnterWindowMask;
+
+ priv->window = XCreateWindow(dpy,
+ DefaultRootWindow(dpy),
+ 0, 0,
+ options.width, options.height,
+ 0,
+ CopyFromParent,
+ InputOutput,
+ CopyFromParent,
+ CWOverrideRedirect|CWEventMask, &attr);
+
+ XSetWMProtocols(dpy, priv->window, &priv->wm_delete_window, 1);
+
+ if(!options.resizable)
+ {
+ XSizeHints hints;
+ hints.flags = PMinSize|PMaxSize;
+ hints.min_width=hints.max_width = options.width;
+ hints.min_height=hints.max_height = options.height;
+ XSetWMNormalHints(dpy, priv->window, &hints);
+ }
+
+#endif
+
+ display.add_window(*this);
+ display.check_error();
+}
+
+Window::~Window()
+{
+ if(priv->window)
+#ifdef WIN32
+ CloseWindow(priv->window);
+#else
+ XDestroyWindow(display.get_private().display, priv->window);
+
+ if(priv->invisible_cursor)
+ XFreeCursor(display.get_private().display, priv->invisible_cursor);
+#endif
+
+ display.remove_window(*this);
+
+ if(options.fullscreen)
+ display.restore_mode();
+
+ delete priv;
+}
+
+void Window::set_title(const string &title)
+{
+#ifdef WIN32
+ SetWindowText(priv->window, title.c_str());
+#else
+ vector<unsigned char> buf(title.begin(), title.end());
+ XTextProperty prop;
+ prop.value = &buf[0];
+ prop.encoding = XA_STRING;
+ prop.format = 8;
+ prop.nitems = title.size();
+ XSetWMName(display.get_private().display, priv->window, &prop);
+ display.check_error();
+#endif
+}
+
+void Window::reconfigure(const WindowOptions &opts)
+{
+ bool fullscreen_changed = (opts.fullscreen!=options.fullscreen);
+ resizing = (opts.width!=options.width || opts.height!=options.height);
+
+ options = opts;
+
+#ifdef WIN32
+ RECT rect;
+ SetRect(&rect, 0, 0, options.width, options.height);
+
+ int style = (options.fullscreen ? WS_POPUP : WS_OVERLAPPEDWINDOW);
+ if(!options.resizable)
+ style &= ~WS_THICKFRAME;
+ int exstyle = (options.fullscreen ? WS_EX_APPWINDOW : WS_EX_OVERLAPPEDWINDOW);
+ AdjustWindowRectEx(&rect, style, false, exstyle);
+
+ if(fullscreen_changed)
+ {
+ hide();
+ SetWindowLong(priv->window, GWL_EXSTYLE, exstyle);
+ SetWindowLong(priv->window, GWL_STYLE, style);
+ show();
+ }
+
+ if(options.fullscreen)
+ SetWindowPos(priv->window, 0, 0, 0, rect.right-rect.left, rect.bottom-rect.top, SWP_NOZORDER);
+ else
+ SetWindowPos(priv->window, 0, 0, 0, rect.right-rect.left, rect.bottom-rect.top, SWP_NOMOVE|SWP_NOZORDER);
+#else
+ ::Display *dpy = display.get_private().display;
+
+ bool was_visible = visible;
+ if(fullscreen_changed)
+ {
+ if(was_visible)
+ {
+ hide();
+
+ // Wait for the window to be unmapped. This makes window managers happy.
+ XEvent ev;
+ int ev_type = UnmapNotify;
+ XPeekIfEvent(dpy, &ev, match_event_type, reinterpret_cast<char *>(&ev_type));
+ }
+
+ XSetWindowAttributes attr;
+ attr.override_redirect = options.fullscreen;
+ XChangeWindowAttributes(dpy, priv->window, CWOverrideRedirect, &attr);
+ }
+
+ XSizeHints hints;
+ if(options.resizable)
+ hints.flags = 0;
+ else
+ {
+ hints.flags = PMinSize|PMaxSize;
+ hints.min_width=hints.max_width = options.width;
+ hints.min_height=hints.max_height = options.height;
+ }
+ XSetWMNormalHints(dpy, priv->window, &hints);
+
+ if(options.fullscreen)
+ XMoveResizeWindow(dpy, priv->window, 0, 0, options.width, options.height);
+ else
+ XResizeWindow(dpy, priv->window, options.width, options.height);
+
+ if(fullscreen_changed)
+ {
+ if(was_visible)
+ show();
+ }
+#endif
+
+ if(visible)
+ {
+ if(options.fullscreen)
+ display.set_mode(VideoMode(options.width, options.height));
+ else if(fullscreen_changed)
+ display.restore_mode();
+ }
+}
+
+void Window::set_keyboard_autorepeat(bool r)
+{
+ kbd_autorepeat = r;
+}
+
+void Window::show_cursor(bool s)
+{
+#ifdef WIN32
+ ShowCursor(s);
+#else
+ ::Display *dpy = display.get_private().display;
+
+ if(s)
+ XUndefineCursor(dpy, priv->window);
+ else
+ {
+ if(!priv->invisible_cursor)
+ {
+ int screen = DefaultScreen(dpy);
+
+ Pixmap pm = XCreatePixmap(dpy, priv->window, 1, 1, 1);
+ GC gc = XCreateGC(dpy, pm, 0, 0);
+ XSetFunction(dpy, gc, GXclear);
+ XDrawPoint(dpy, pm, gc, 0, 0);
+ XFreeGC(dpy, gc);
+
+ XColor black;
+ black.pixel = BlackPixel(dpy, screen);
+ XQueryColor(dpy, DefaultColormap(dpy, screen), &black);
+
+ priv->invisible_cursor = XCreatePixmapCursor(dpy, pm, pm, &black, &black, 0, 0);
+
+ XFreePixmap(dpy, pm);
+ }
+ XDefineCursor(dpy, priv->window, priv->invisible_cursor);
+ }
+#endif
+}
+
+void Window::warp_pointer(int x, int y)
+{
+#ifndef WIN32
+ XWarpPointer(display.get_private().display, None, priv->window, 0, 0, 0, 0, x, y);
+#else
+ (void)x;
+ (void)y;
+#endif
+}
+
+void Window::show()
+{
+#ifdef WIN32
+ ShowWindow(priv->window, SW_SHOWNORMAL);
+#else
+ XMapRaised(display.get_private().display, priv->window);
+#endif
+ visible = true;
+
+ if(options.fullscreen)
+ {
+ display.set_mode(VideoMode(options.width, options.height));
+#ifndef WIN32
+ XWarpPointer(display.get_private().display, None, priv->window, 0, 0, 0, 0, options.width/2, options.height/2);
+#endif
+ }
+}
+
+void Window::hide()
+{
+#ifdef WIN32
+ ShowWindow(priv->window, SW_HIDE);
+#else
+ XUnmapWindow(display.get_private().display, priv->window);
+#endif
+ visible = false;
+
+ if(options.fullscreen)
+ display.restore_mode();
+}
+
+bool Window::event(const Event &evnt)
+{
+#ifdef WIN32
+ WPARAM wp = evnt.wparam;
+ LPARAM lp = evnt.lparam;
+ switch(evnt.msg)
+ {
+ case WM_KEYDOWN:
+ signal_key_press.emit(wp, 0, wp);
+ break;
+ case WM_KEYUP:
+ signal_key_release.emit(wp, 0);
+ break;
+ case WM_LBUTTONDOWN:
+ signal_button_press.emit(GET_X_LPARAM(lp), GET_Y_LPARAM(lp), 1, 0);
+ break;
+ case WM_LBUTTONUP:
+ signal_button_release.emit(GET_X_LPARAM(lp), GET_Y_LPARAM(lp), 1, 0);
+ break;
+ case WM_MBUTTONDOWN:
+ signal_button_press.emit(GET_X_LPARAM(lp), GET_Y_LPARAM(lp), 2, 0);
+ break;
+ case WM_MBUTTONUP:
+ signal_button_release.emit(GET_X_LPARAM(lp), GET_Y_LPARAM(lp), 2, 0);
+ break;
+ case WM_RBUTTONDOWN:
+ signal_button_press.emit(GET_X_LPARAM(lp), GET_Y_LPARAM(lp), 3, 0);
+ break;
+ case WM_RBUTTONUP:
+ signal_button_release.emit(GET_X_LPARAM(lp), GET_Y_LPARAM(lp), 3, 0);
+ break;
+ case WM_MOUSEWHEEL:
+ {
+ unsigned btn = (HIWORD(wp)&0x8000) ? 5 : 4;
+ signal_button_press.emit(GET_X_LPARAM(lp), GET_Y_LPARAM(lp), btn, 0);
+ signal_button_release.emit(GET_X_LPARAM(lp), GET_Y_LPARAM(lp), btn, 0);
+ }
+ break;
+ case WM_MOUSEMOVE:
+ signal_pointer_motion.emit(GET_X_LPARAM(lp), GET_Y_LPARAM(lp));
+ break;
+ case WM_SIZE:
+ options.width = LOWORD(lp);
+ options.height = HIWORD(lp);
+ signal_resize.emit(options.width, options.height);
+ break;
+ case WM_CLOSE:
+ signal_close.emit();
+ break;
+ default:
+ return false;
+ }
+#else
+ const XEvent &ev = evnt.xevent;
+ switch(ev.type)
+ {
+ case ButtonPress:
+ signal_button_press.emit(ev.xbutton.x, ev.xbutton.y, ev.xbutton.button, ev.xbutton.state);
+ break;
+ case ButtonRelease:
+ signal_button_release.emit(ev.xbutton.x, ev.xbutton.y, ev.xbutton.button, ev.xbutton.state);
+ break;
+ case MotionNotify:
+ signal_pointer_motion.emit(ev.xmotion.x, ev.xmotion.y);
+ break;
+ case KeyPress:
+ {
+ char buf[16];
+ XLookupString(const_cast<XKeyEvent *>(&ev.xkey), buf, sizeof(buf), 0, 0);
+ // XXX Handle the result according to locale
+ signal_key_press.emit(XKeycodeToKeysym(display.get_private().display, ev.xkey.keycode, 0), ev.xkey.state, buf[0]);
+ }
+ break;
+ case KeyRelease:
+ signal_key_release.emit(XKeycodeToKeysym(display.get_private().display, ev.xkey.keycode, 0), ev.xkey.state);
+ break;
+ case ConfigureNotify:
+ if((ev.xconfigure.width==static_cast<int>(options.width) && ev.xconfigure.height==static_cast<int>(options.height)) == resizing)
+ {
+ options.width = ev.xconfigure.width;
+ options.height = ev.xconfigure.height;
+ resizing = false;
+ signal_resize.emit(options.width, options.height);
+ }
+#ifdef WITH_XF86VIDMODE
+ if(options.fullscreen)
+ {
+ ::Display *dpy = display.get_private().display;
+ int screen = DefaultScreen(dpy);
+ XF86VidModeSetViewPort(dpy, screen, ev.xconfigure.x, ev.xconfigure.y);
+ }
+#endif
+ break;
+ case ClientMessage:
+ if(ev.xclient.data.l[0]==static_cast<long>(priv->wm_delete_window))
+ signal_close.emit();
+ break;
+ case EnterNotify:
+ if(options.fullscreen)
+ XSetInputFocus(display.get_private().display, priv->window, RevertToParent, CurrentTime);
+ break;
+ case MapNotify:
+ if(options.fullscreen)
+ XGrabPointer(display.get_private().display, priv->window, true, None, GrabModeAsync, GrabModeAsync, priv->window, None, CurrentTime);
+ break;
+ default:
+ return false;
+ }
+#endif
+ return true;
+}
+
+} // namespace Graphics
+} // namespace Msp