mirror of
https://github.com/juce-framework/JUCE.git
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427 lines
13 KiB
C++
427 lines
13 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library - "Jules' Utility Class Extensions"
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Copyright 2004-9 by Raw Material Software Ltd.
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------------------------------------------------------------------------------
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JUCE can be redistributed and/or modified under the terms of the GNU General
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Public License (Version 2), as published by the Free Software Foundation.
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A copy of the license is included in the JUCE distribution, or can be found
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online at www.gnu.org/licenses.
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JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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------------------------------------------------------------------------------
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To release a closed-source product which uses JUCE, commercial licenses are
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available: visit www.rawmaterialsoftware.com/juce for more information.
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==============================================================================
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*/
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#include "../../core/juce_StandardHeader.h"
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BEGIN_JUCE_NAMESPACE
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#include "juce_Desktop.h"
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#include "juce_ComponentDeletionWatcher.h"
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#include "../graphics/geometry/juce_RectangleList.h"
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//==============================================================================
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Desktop::Desktop() throw()
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: lastFakeMouseMoveX (0),
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lastFakeMouseMoveY (0),
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mouseClickCounter (0),
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mouseMovedSignificantlySincePressed (false),
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kioskModeComponent (0)
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{
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zerostruct (mouseDowns);
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refreshMonitorSizes();
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}
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Desktop::~Desktop() throw()
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{
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jassert (instance == this);
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instance = 0;
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// doh! If you don't delete all your windows before exiting, you're going to
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// be leaking memory!
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jassert (desktopComponents.size() == 0);
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}
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Desktop& JUCE_CALLTYPE Desktop::getInstance() throw()
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{
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if (instance == 0)
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instance = new Desktop();
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return *instance;
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}
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Desktop* Desktop::instance = 0;
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//==============================================================================
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extern void juce_updateMultiMonitorInfo (Array <Rectangle>& monitorCoords,
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const bool clipToWorkArea);
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void Desktop::refreshMonitorSizes() throw()
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{
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const Array <Rectangle> oldClipped (monitorCoordsClipped);
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const Array <Rectangle> oldUnclipped (monitorCoordsUnclipped);
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monitorCoordsClipped.clear();
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monitorCoordsUnclipped.clear();
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juce_updateMultiMonitorInfo (monitorCoordsClipped, true);
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juce_updateMultiMonitorInfo (monitorCoordsUnclipped, false);
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jassert (monitorCoordsClipped.size() > 0
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&& monitorCoordsClipped.size() == monitorCoordsUnclipped.size());
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if (oldClipped != monitorCoordsClipped
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|| oldUnclipped != monitorCoordsUnclipped)
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{
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for (int i = ComponentPeer::getNumPeers(); --i >= 0;)
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{
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ComponentPeer* const p = ComponentPeer::getPeer (i);
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if (p != 0)
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p->handleScreenSizeChange();
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}
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}
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}
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int Desktop::getNumDisplayMonitors() const throw()
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{
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return monitorCoordsClipped.size();
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}
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const Rectangle Desktop::getDisplayMonitorCoordinates (const int index, const bool clippedToWorkArea) const throw()
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{
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return clippedToWorkArea ? monitorCoordsClipped [index]
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: monitorCoordsUnclipped [index];
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}
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const RectangleList Desktop::getAllMonitorDisplayAreas (const bool clippedToWorkArea) const throw()
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{
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RectangleList rl;
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for (int i = 0; i < getNumDisplayMonitors(); ++i)
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rl.addWithoutMerging (getDisplayMonitorCoordinates (i, clippedToWorkArea));
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return rl;
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}
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const Rectangle Desktop::getMainMonitorArea (const bool clippedToWorkArea) const throw()
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{
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return getDisplayMonitorCoordinates (0, clippedToWorkArea);
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}
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const Rectangle Desktop::getMonitorAreaContaining (int cx, int cy, const bool clippedToWorkArea) const throw()
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{
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Rectangle best (getMainMonitorArea (clippedToWorkArea));
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double bestDistance = 1.0e10;
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for (int i = getNumDisplayMonitors(); --i >= 0;)
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{
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const Rectangle rect (getDisplayMonitorCoordinates (i, clippedToWorkArea));
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if (rect.contains (cx, cy))
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return rect;
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const double distance = juce_hypot ((double) (rect.getCentreX() - cx),
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(double) (rect.getCentreY() - cy));
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if (distance < bestDistance)
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{
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bestDistance = distance;
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best = rect;
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}
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}
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return best;
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}
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//==============================================================================
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int Desktop::getNumComponents() const throw()
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{
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return desktopComponents.size();
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}
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Component* Desktop::getComponent (const int index) const throw()
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{
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return desktopComponents [index];
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}
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Component* Desktop::findComponentAt (const int screenX,
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const int screenY) const
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{
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for (int i = desktopComponents.size(); --i >= 0;)
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{
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Component* const c = desktopComponents.getUnchecked(i);
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int x = screenX, y = screenY;
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c->globalPositionToRelative (x, y);
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if (c->contains (x, y))
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return c->getComponentAt (x, y);
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}
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return 0;
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}
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//==============================================================================
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void Desktop::addDesktopComponent (Component* const c) throw()
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{
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jassert (c != 0);
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jassert (! desktopComponents.contains (c));
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desktopComponents.addIfNotAlreadyThere (c);
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}
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void Desktop::removeDesktopComponent (Component* const c) throw()
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{
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desktopComponents.removeValue (c);
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}
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void Desktop::componentBroughtToFront (Component* const c) throw()
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{
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const int index = desktopComponents.indexOf (c);
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jassert (index >= 0);
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if (index >= 0)
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{
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int newIndex = -1;
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if (! c->isAlwaysOnTop())
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{
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newIndex = desktopComponents.size();
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while (newIndex > 0 && desktopComponents.getUnchecked (newIndex - 1)->isAlwaysOnTop())
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--newIndex;
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--newIndex;
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}
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desktopComponents.move (index, newIndex);
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}
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}
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//==============================================================================
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void Desktop::getLastMouseDownPosition (int& x, int& y) throw()
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{
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const Desktop& d = getInstance();
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x = d.mouseDowns[0].x;
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y = d.mouseDowns[0].y;
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}
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int Desktop::getMouseButtonClickCounter() throw()
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{
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return getInstance().mouseClickCounter;
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}
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void Desktop::incrementMouseClickCounter() throw()
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{
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++mouseClickCounter;
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}
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const Time Desktop::getLastMouseDownTime() const throw()
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{
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return Time (mouseDowns[0].time);
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}
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void Desktop::registerMouseDown (int x, int y, int64 time, Component* component) throw()
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{
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for (int i = numElementsInArray (mouseDowns); --i > 0;)
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mouseDowns[i] = mouseDowns[i - 1];
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mouseDowns[0].x = x;
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mouseDowns[0].y = y;
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mouseDowns[0].time = time;
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mouseDowns[0].component = component;
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mouseMovedSignificantlySincePressed = false;
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}
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void Desktop::registerMouseDrag (int x, int y) throw()
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{
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mouseMovedSignificantlySincePressed
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= mouseMovedSignificantlySincePressed
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|| abs (mouseDowns[0].x - x) >= 4
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|| abs (mouseDowns[0].y - y) >= 4;
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}
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int Desktop::getNumberOfMultipleClicks() const throw()
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{
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int numClicks = 0;
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if (mouseDowns[0].time != 0)
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{
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if (! mouseMovedSignificantlySincePressed)
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++numClicks;
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for (int i = 1; i < numElementsInArray (mouseDowns); ++i)
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{
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if (mouseDowns[0].time - mouseDowns[i].time
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< (int) (MouseEvent::getDoubleClickTimeout() * (1.0 + 0.25 * (i - 1)))
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&& abs (mouseDowns[0].x - mouseDowns[i].x) < 8
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&& abs (mouseDowns[0].y - mouseDowns[i].y) < 8
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&& mouseDowns[0].component == mouseDowns[i].component)
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{
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++numClicks;
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}
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else
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{
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break;
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}
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}
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}
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return numClicks;
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}
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//==============================================================================
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void Desktop::addGlobalMouseListener (MouseListener* const listener) throw()
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{
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jassert (listener != 0);
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if (listener != 0)
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{
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mouseListeners.add (listener);
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resetTimer();
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}
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}
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void Desktop::removeGlobalMouseListener (MouseListener* const listener) throw()
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{
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mouseListeners.removeValue (listener);
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resetTimer();
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}
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//==============================================================================
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void Desktop::addFocusChangeListener (FocusChangeListener* const listener) throw()
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{
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jassert (listener != 0);
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if (listener != 0)
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focusListeners.add (listener);
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}
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void Desktop::removeFocusChangeListener (FocusChangeListener* const listener) throw()
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{
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focusListeners.removeValue (listener);
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}
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void Desktop::triggerFocusCallback() throw()
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{
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triggerAsyncUpdate();
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}
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void Desktop::handleAsyncUpdate()
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{
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for (int i = focusListeners.size(); --i >= 0;)
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{
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((FocusChangeListener*) focusListeners.getUnchecked (i))->globalFocusChanged (Component::getCurrentlyFocusedComponent());
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i = jmin (i, focusListeners.size());
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}
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}
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//==============================================================================
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void Desktop::timerCallback()
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{
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int x, y;
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getMousePosition (x, y);
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if (lastFakeMouseMoveX != x || lastFakeMouseMoveY != y)
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sendMouseMove();
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}
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void Desktop::sendMouseMove()
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{
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if (mouseListeners.size() > 0)
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{
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startTimer (20);
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int x, y;
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getMousePosition (x, y);
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lastFakeMouseMoveX = x;
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lastFakeMouseMoveY = y;
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Component* const target = findComponentAt (x, y);
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if (target != 0)
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{
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target->globalPositionToRelative (x, y);
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ComponentDeletionWatcher deletionChecker (target);
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const MouseEvent me (x, y,
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ModifierKeys::getCurrentModifiers(),
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target,
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Time::getCurrentTime(),
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x, y,
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Time::getCurrentTime(),
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0, false);
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for (int i = mouseListeners.size(); --i >= 0;)
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{
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if (ModifierKeys::getCurrentModifiers().isAnyMouseButtonDown())
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((MouseListener*) mouseListeners[i])->mouseDrag (me);
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else
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((MouseListener*) mouseListeners[i])->mouseMove (me);
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if (deletionChecker.hasBeenDeleted())
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return;
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i = jmin (i, mouseListeners.size());
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}
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}
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}
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}
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void Desktop::resetTimer() throw()
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{
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if (mouseListeners.size() == 0)
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stopTimer();
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else
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startTimer (100);
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getMousePosition (lastFakeMouseMoveX, lastFakeMouseMoveY);
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}
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//==============================================================================
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extern void juce_setKioskComponent (Component* kioskModeComponent, bool enableOrDisable, bool allowMenusAndBars);
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void Desktop::setKioskModeComponent (Component* componentToUse, const bool allowMenusAndBars)
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{
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if (kioskModeComponent != componentToUse)
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{
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// agh! Don't delete a component without first stopping it being the kiosk comp
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jassert (kioskModeComponent == 0 || kioskModeComponent->isValidComponent());
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// agh! Don't remove a component from the desktop if it's the kiosk comp!
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jassert (kioskModeComponent == 0 || kioskModeComponent->isOnDesktop());
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if (kioskModeComponent->isValidComponent())
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{
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juce_setKioskComponent (kioskModeComponent, false, allowMenusAndBars);
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kioskModeComponent->setBounds (kioskComponentOriginalBounds);
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}
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kioskModeComponent = componentToUse;
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if (kioskModeComponent != 0)
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{
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jassert (kioskModeComponent->isValidComponent());
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// Only components that are already on the desktop can be put into kiosk mode!
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jassert (kioskModeComponent->isOnDesktop());
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kioskComponentOriginalBounds = kioskModeComponent->getBounds();
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juce_setKioskComponent (kioskModeComponent, true, allowMenusAndBars);
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}
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}
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}
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END_JUCE_NAMESPACE
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