// EventManager.cc // Copyright (c) 2002 Henrik Kinnunen (fluxgen at linuxmail.org) // // Permission is hereby granted, free of charge, to any person obtaining a // copy of this software and associated documentation files (the "Software"), // to deal in the Software without restriction, including without limitation // the rights to use, copy, modify, merge, publish, distribute, sublicense, // and/or sell copies of the Software, and to permit persons to whom the // Software is furnished to do so, subject to the following conditions: // // The above copyright notice and this permission notice shall be included in // all copies or substantial portions of the Software. // // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER // DEALINGS IN THE SOFTWARE. // $Id: EventManager.cc,v 1.10 2003/10/14 16:23:16 rathnor Exp $ #include "EventManager.hh" #include "FbWindow.hh" #include "App.hh" #include <iostream> using namespace std; namespace FbTk { EventManager *EventManager::instance() { static EventManager ev; return &ev; } EventManager::~EventManager() { if (m_eventhandlers.size() != 0) cerr<<"FbTk::EventManager: Warning: unregistered eventhandlers!"<<endl; } void EventManager::handleEvent(XEvent &ev) { dispatch(ev.xany.window, ev); } void EventManager::add(EventHandler &ev, const FbWindow &win) { registerEventHandler(ev, win.window()); } void EventManager::addParent(EventHandler &ev, const FbWindow &win) { if (win.window() != 0) m_parent[win.window()] = &ev; } void EventManager::remove(const FbWindow &win) { unregisterEventHandler(win.window()); } Window EventManager::getEventWindow(XEvent &ev) { // we only have cases for events that differ from xany switch (ev.type) { case CreateNotify: // XCreateWindowEvent return ev.xcreatewindow.window; break; case DestroyNotify: // XDestroyWindowEvent return ev.xdestroywindow.window; break; case UnmapNotify: // XUnmapEvent return ev.xunmap.window; break; case MapNotify: // XMapEvent return ev.xmap.window; break; case MapRequest: // XMapRequestEvent return ev.xmaprequest.window; break; case ReparentNotify: // XReparentEvent return ev.xreparent.window; break; case ConfigureNotify: // XConfigureNotify return ev.xconfigure.window; break; case GravityNotify: // XGravityNotify return ev.xgravity.window; break; case ConfigureRequest: // XConfigureRequestEvent return ev.xconfigurerequest.window; break; case CirculateNotify: // XCirculateEvent return ev.xcirculate.window; break; case CirculateRequest: // XCirculateRequestEvent return ev.xcirculaterequest.window; break; default: return ev.xany.window; } } void EventManager::registerEventHandler(EventHandler &ev, Window win) { if (win != None) m_eventhandlers[win] = &ev; } void EventManager::unregisterEventHandler(Window win) { if (win != None) { m_eventhandlers.erase(win); m_parent.erase(win); } } void EventManager::dispatch(Window win, XEvent &ev, bool parent) { EventHandler *evhand = 0; if (parent) evhand = m_parent[win]; else { win = getEventWindow(ev); evhand = m_eventhandlers[win]; } if (evhand == 0) return; switch (ev.type) { case KeyPress: evhand->keyPressEvent(ev.xkey); break; case KeyRelease: evhand->keyReleaseEvent(ev.xkey); break; case ButtonPress: evhand->buttonPressEvent(ev.xbutton); break; case ButtonRelease: evhand->buttonReleaseEvent(ev.xbutton); break; case MotionNotify: evhand->motionNotifyEvent(ev.xmotion); break; case Expose: evhand->exposeEvent(ev.xexpose); break; case EnterNotify: evhand->enterNotifyEvent(ev.xcrossing); break; case LeaveNotify: evhand->leaveNotifyEvent(ev.xcrossing); break; default: evhand->handleEvent(ev); break; }; // find out which window is the parent and // dispatch event Window root, parent_win, *children = 0; unsigned int num_children; if (XQueryTree(FbTk::App::instance()->display(), win, &root, &parent_win, &children, &num_children) != 0) { if (children != 0) XFree(children); if (parent_win != 0 && parent_win != root) { if (m_parent[parent_win] == 0) return; // dispatch event to parent dispatch(parent_win, ev, true); } } } }; // end namespace FbTk