[692] | 1 | /*
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| 2 | -----------------------------------------------------------------------------
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| 3 | This source file is part of OGRE
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| 4 | (Object-oriented Graphics Rendering Engine)
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| 5 | For the latest info, see http://www.ogre3d.org/
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| 6 |
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| 7 | Copyright (c) 2000-2005 The OGRE Team
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| 8 | Also see acknowledgements in Readme.html
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| 9 |
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| 10 | This program is free software; you can redistribute it and/or modify it under
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| 11 | the terms of the GNU Lesser General Public License as published by the Free Software
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| 12 | Foundation; either version 2 of the License, or (at your option) any later
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| 13 | version.
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| 14 |
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| 15 | This program is distributed in the hope that it will be useful, but WITHOUT
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| 16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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| 17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
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| 18 |
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| 19 | You should have received a copy of the GNU Lesser General Public License along with
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| 20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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| 21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to
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| 22 | http://www.gnu.org/copyleft/lesser.txt.
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| 23 | -----------------------------------------------------------------------------
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| 24 | */
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| 25 | #include "OgreStableHeaders.h"
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| 26 |
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| 27 | #include "OgreMouseEvent.h"
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| 28 | #include "OgreEventDispatcher.h"
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| 29 | #include "OgreTargetManager.h"
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| 30 | #include "OgreEventProcessor.h"
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| 31 | #include "OgrePositionTarget.h"
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| 32 | #include "OgreKeyEvent.h"
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| 33 |
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| 34 | namespace Ogre {
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| 35 |
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| 36 | EventDispatcher::EventDispatcher(TargetManager* pTargetManager)
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| 37 | :mTargetManager(pTargetManager) // abstract this out TODO
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| 38 | {
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| 39 | mFocus = 0;
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| 40 | mMouseDragSource = 0;
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| 41 | mKeyCursorOn = 0;
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| 42 | mEventMask = 0;
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| 43 | mTargetLastEntered = 0;
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| 44 | mMouseX = 0;
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| 45 | mMouseY = 0;
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| 46 | mDragging = false;
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| 47 | mDragDropOn = false;
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| 48 | mDragDropActive = false;
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| 49 | }
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| 50 |
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| 51 | //---------------------------------------------------------------------
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| 52 | EventDispatcher::~EventDispatcher()
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| 53 | {
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| 54 | }
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| 55 |
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| 56 | //---------------------------------------------------------------------
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| 57 | bool EventDispatcher::dispatchEvent(InputEvent* e)
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| 58 | {
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| 59 | bool ret = false;
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| 60 | if (e->isEventBetween(MouseEvent::ME_FIRST_EVENT, MouseEvent::ME_LAST_EVENT)) // i am open to suggestions for a better way to do this
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| 61 | // maybe a method e->isEvent(InputEvent::MouseEvent) ??
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| 62 | {
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| 63 | MouseEvent* me = static_cast<MouseEvent*> (e);
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| 64 | ret = processMouseEvent(me);
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| 65 | }
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| 66 | else if (e->isEventBetween(KeyEvent::KE_FIRST_EVENT, KeyEvent::KE_LAST_EVENT))
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| 67 | {
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| 68 | KeyEvent* ke = static_cast<KeyEvent*> (e);
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| 69 | ret = processKeyEvent(ke);
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| 70 |
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| 71 | }
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| 72 | return ret;
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| 73 | }
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| 74 |
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| 75 | //---------------------------------------------------------------------
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| 76 | void EventDispatcher::setDragDrop(bool dragDropOn)
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| 77 | {
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| 78 | mDragDropOn = dragDropOn;
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| 79 | }
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| 80 |
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| 81 | //---------------------------------------------------------------------
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| 82 | bool EventDispatcher::processKeyEvent(KeyEvent* e)
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| 83 | {
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| 84 | if (mKeyCursorOn != 0)
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| 85 | {
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| 86 | mKeyCursorOn->processEvent(e);
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| 87 | }
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| 88 | return e->isConsumed();
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| 89 | }
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| 90 |
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| 91 | //---------------------------------------------------------------------
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| 92 | bool EventDispatcher::processMouseEvent(MouseEvent* e)
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| 93 | {
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| 94 | PositionTarget* targetOver;
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| 95 |
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| 96 | mMouseX = e->getX();
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| 97 | mMouseY = e->getY();
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| 98 |
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| 99 | targetOver = mTargetManager->getPositionTargetAt(e->getX(), e->getY());
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| 100 | trackMouseEnterExit(targetOver, e);
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| 101 |
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| 102 | switch (e->getID())
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| 103 | {
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| 104 | case MouseEvent::ME_MOUSE_PRESSED:
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| 105 | mDragging = true;
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| 106 | if (mDragDropOn)
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| 107 | mDragDropActive = true;
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| 108 | mMouseDragSource = targetOver;
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| 109 | retargetMouseEvent(targetOver, e);
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| 110 | trackKeyEnterExit(targetOver, e);
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| 111 | break;
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| 112 |
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| 113 | case MouseEvent::ME_MOUSE_RELEASED:
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| 114 | if (targetOver != 0)
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| 115 | {
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| 116 | if (targetOver == mMouseDragSource)
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| 117 | {
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| 118 | retargetMouseEvent(mMouseDragSource, MouseEvent::ME_MOUSE_CLICKED, e);
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| 119 | retargetMouseEvent(mMouseDragSource, e);
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| 120 | }
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| 121 | else // i.e. targetOver != mMouseDragSource
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| 122 | {
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| 123 | if (mDragDropActive)
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| 124 | retargetMouseEvent(targetOver, MouseEvent::ME_MOUSE_DRAGDROPPED, e);
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| 125 | retargetMouseEvent(mMouseDragSource, e);
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| 126 | retargetMouseEvent(targetOver, MouseEvent::ME_MOUSE_ENTERED, e);
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| 127 | }
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| 128 | }
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| 129 | else
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| 130 | retargetMouseEvent(mMouseDragSource, e);
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| 131 |
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| 132 | mDragging = false;
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| 133 | mDragDropActive = false;
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| 134 | mMouseDragSource = 0;
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| 135 | break;
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| 136 |
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| 137 | case MouseEvent::ME_MOUSE_MOVED:
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| 138 | case MouseEvent::ME_MOUSE_DRAGGED:
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| 139 | if (!mDragging || targetOver == mMouseDragSource)
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| 140 | {
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| 141 | retargetMouseEvent(targetOver, e);
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| 142 | }
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| 143 | else // i.e. mDragging && targetOver != mMouseDragSource
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| 144 | {
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| 145 | retargetMouseEvent(mMouseDragSource, MouseEvent::ME_MOUSE_DRAGGED, e, true);
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| 146 | if (mDragDropActive)
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| 147 | retargetMouseEvent(targetOver, MouseEvent::ME_MOUSE_DRAGMOVED, e);
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| 148 | }
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| 149 | break;
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| 150 | }
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| 151 |
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| 152 | return e->isConsumed();
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| 153 | }
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| 154 |
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| 155 | //---------------------------------------------------------------------
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| 156 | void EventDispatcher::retargetMouseEvent(PositionTarget* target, MouseEvent* e)
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| 157 | {
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| 158 | if (target == NULL)
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| 159 | {
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| 160 | return;
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| 161 | }
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| 162 |
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| 163 | MouseEvent* retargeted = new MouseEvent(target,
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| 164 | e->getID(),
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| 165 | e->getButtonID(),
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| 166 | e->getWhen(),
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| 167 | e->getModifiers(),
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| 168 | e->getX(),
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| 169 | e->getY(),
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| 170 | e->getZ(),
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| 171 | e->getClickCount());
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| 172 |
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| 173 | target->processEvent(retargeted);
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| 174 | delete retargeted;
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| 175 |
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| 176 | e->consume();
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| 177 | }
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| 178 |
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| 179 | //---------------------------------------------------------------------
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| 180 | void EventDispatcher::retargetMouseEvent(PositionTarget* target, int id, MouseEvent* e, bool consume)
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| 181 | {
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| 182 | if (target == NULL)
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| 183 | {
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| 184 | return;
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| 185 | }
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| 186 |
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| 187 | MouseEvent* retargeted = new MouseEvent(target,
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| 188 | id,
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| 189 | e->getButtonID(),
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| 190 | e->getWhen(),
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| 191 | e->getModifiers(),
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| 192 | e->getX(),
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| 193 | e->getY(),
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| 194 | e->getZ(),
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| 195 | e->getClickCount());
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| 196 |
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| 197 | target->processEvent(retargeted);
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| 198 | delete retargeted;
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| 199 |
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| 200 | if (consume)
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| 201 | e->consume();
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| 202 | }
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| 203 |
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| 204 | //---------------------------------------------------------------------
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| 205 | void EventDispatcher::retargetKeyEvent(PositionTarget* target, int id, MouseEvent* e)
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| 206 | {
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| 207 | if (target == NULL)
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| 208 | {
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| 209 | return;
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| 210 | }
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| 211 |
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| 212 | KeyEvent* retargeted = new KeyEvent(target,
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| 213 | id,
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| 214 | 0,
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| 215 | e->getWhen(),
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| 216 | e->getModifiers());
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| 217 |
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| 218 | target->processEvent(retargeted);
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| 219 | delete retargeted;
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| 220 | }
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| 221 |
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| 222 | //---------------------------------------------------------------------
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| 223 | void EventDispatcher::trackMouseEnterExit(PositionTarget* targetOver, MouseEvent* e)
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| 224 | {
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| 225 | if (mTargetLastEntered == targetOver)
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| 226 | {
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| 227 | return;
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| 228 | }
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| 229 |
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| 230 | if (mTargetLastEntered != 0)
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| 231 | {
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| 232 | if (!mDragging || mTargetLastEntered == mMouseDragSource)
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| 233 | {
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| 234 | retargetMouseEvent(mTargetLastEntered, MouseEvent::ME_MOUSE_EXITED, e);
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| 235 | }
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| 236 | else if (mDragDropActive) // i.e. mDragging && mTargetLastEntered != mMouseDragSource && mDragDropActive
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| 237 | {
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| 238 | retargetMouseEvent(mTargetLastEntered, MouseEvent::ME_MOUSE_DRAGEXITED, e);
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| 239 | }
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| 240 | }
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| 241 |
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| 242 | if (targetOver != 0)
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| 243 | {
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| 244 | if (!mDragging || targetOver == mMouseDragSource)
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| 245 | {
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| 246 | retargetMouseEvent(targetOver, MouseEvent::ME_MOUSE_ENTERED, e);
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| 247 | }
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| 248 | else if (mDragDropActive) // i.e. mDragging && targetOver != mMouseDragSource && mDragDropActive
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| 249 | {
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| 250 | retargetMouseEvent(targetOver, MouseEvent::ME_MOUSE_DRAGENTERED, e);
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| 251 | }
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| 252 | }
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| 253 |
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| 254 | mTargetLastEntered = targetOver;
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| 255 | }
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| 256 |
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| 257 | //---------------------------------------------------------------------
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| 258 | void EventDispatcher::trackKeyEnterExit(PositionTarget* targetOver, MouseEvent* e)
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| 259 | {
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| 260 | if (targetOver != mKeyCursorOn)
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| 261 | {
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| 262 | if (mKeyCursorOn != 0)
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| 263 | {
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| 264 | retargetKeyEvent(mKeyCursorOn, KeyEvent::KE_KEY_FOCUSOUT, e);
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| 265 | }
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| 266 |
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| 267 | if (targetOver != 0 && targetOver->isKeyEnabled())
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| 268 | {
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| 269 | mKeyCursorOn = targetOver;
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| 270 | retargetKeyEvent(targetOver, KeyEvent::KE_KEY_FOCUSIN, e);
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| 271 | }
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| 272 | else
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| 273 | {
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| 274 | mKeyCursorOn = NULL;
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| 275 | }
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| 276 | }
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| 277 | }
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| 278 |
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| 279 | }
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| 280 |
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| 281 |
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| 282 |
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