source/window.cpp

   1 /* $Id$
   2
   3 This file is part of libmspgbase
   4 Copyright © 2007 Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #include <vector>
   9 #include <X11/Xatom.h>
  10 #include <X11/Xutil.h>
  11 #include <msp/core/except.h>
  12 #include "display.h"
  13 #include "window.h"
  14
  15 using namespace std;
  16
  17 namespace Msp {
  18 namespace Graphics {
  19
  20 WindowOptions::WindowOptions():
  21         width(640),
  22         height(480),
  23         fullscreen(false),
  24         resizable(false)
  25 { }
  26
  27
  28 Window::Window(Display &dpy, unsigned w, unsigned h, bool fs):
  29         display(dpy)
  30 {
  31         options.width=w;
  32         options.height=h;
  33         options.fullscreen=fs;
  34
  35         init();
  36 }
  37
  38 Window::Window(Display &dpy, const WindowOptions &opts):
  39         display(dpy),
  40         options(opts)
  41 {
  42         init();
  43 }
  44
  45 Window::~Window()
  46 {
  47         if(window)
  48                 XDestroyWindow(display.get_display(), window);
  49
  50         display.remove_window(this);
  51 }
  52
  53 void Window::set_title(const string &title)
  54 {
  55         vector<unsigned char> buf(title.begin(), title.end());
  56         XTextProperty prop;
  57         prop.value=&buf[0];
  58         prop.encoding=XA_STRING;
  59         prop.format=8;
  60         prop.nitems=title.size();
  61         XSetWMName(display.get_display(), window, &prop);
  62         display.check_error();
  63 }
  64
  65 void Window::show()
  66 {
  67         XMapRaised(display.get_display(), window);
  68         display.check_error();
  69 }
  70
  71 void Window::hide()
  72 {
  73         XUnmapWindow(display.get_display(), window);
  74         display.check_error();
  75 }
  76
  77 void Window::init()
  78 {
  79         ::Display *dpy=display.get_display();
  80
  81         wm_delete_window=XInternAtom(dpy, "WM_DELETE_WINDOW", true);
  82
  83         XSetWindowAttributes attr;
  84         attr.override_redirect=options.fullscreen;
  85         attr.event_mask=ButtonPressMask|ButtonReleaseMask|PointerMotionMask|KeyPressMask|KeyReleaseMask|StructureNotifyMask|EnterWindowMask;
  86
  87         window=XCreateWindow(dpy, DefaultRootWindow(dpy), 0, 0, options.width, options.height, 0, CopyFromParent, InputOutput, CopyFromParent, CWOverrideRedirect|CWEventMask, &attr);
  88
  89         XSetWMProtocols(dpy, window, &wm_delete_window, 1);
  90
  91         display.add_window(this);
  92         display.check_error();
  93 }
  94
  95 void Window::event(const XEvent &ev)
  96 {
  97         switch(ev.type)
  98         {
  99         case ButtonPress:
 100                 signal_button_press.emit(ev.xbutton.x, ev.xbutton.y, ev.xbutton.button, ev.xbutton.state);
 101                 break;
 102         case ButtonRelease:
 103                 signal_button_release.emit(ev.xbutton.x, ev.xbutton.y, ev.xbutton.button, ev.xbutton.state);
 104                 break;
 105         case MotionNotify:
 106                 signal_pointer_motion.emit(ev.xmotion.x, ev.xmotion.y);
 107                 break;
 108         case KeyPress:
 109                 {
 110                         char buf[16];
 111                         XLookupString(const_cast<XKeyEvent *>(&ev.xkey), buf, sizeof(buf), 0, 0);
 112                         // XXX Handle the result according to locale
 113                         signal_key_press.emit(ev.xkey.keycode, ev.xkey.state, buf[0]);
 114                 }
 115                 break;
 116         case KeyRelease:
 117                 signal_key_release.emit(ev.xkey.keycode, ev.xkey.state);
 118                 break;
 119         case ConfigureNotify:
 120                 options.width=ev.xconfigure.width;
 121                 options.height=ev.xconfigure.height;
 122                 signal_resize.emit(options.width, options.height);
 123                 break;
 124         case ClientMessage:
 125                 if(ev.xclient.data.l[0]==static_cast<long>(wm_delete_window))
 126                         signal_close.emit();
 127                 break;
 128         case EnterNotify:
 129                 XSetInputFocus(display.get_display(), window, RevertToParent, CurrentTime);
 130                 break;
 131         default:;
 132         }
 133 }
 134
 135 } // namespace Graphics
 136 } // namespace Msp