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392 lines
13 KiB
392 lines
13 KiB
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2013 - Raw Material Software Ltd.
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Permission is granted to use this software under the terms of either:
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a) the GPL v2 (or any later version)
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b) the Affero GPL v3
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Details of these licenses can be found 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.juce.com for more information.
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==============================================================================
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*/
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Desktop::Desktop()
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: mouseSources (new MouseInputSource::SourceList()),
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mouseClickCounter (0), mouseWheelCounter (0),
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kioskModeComponent (nullptr),
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allowedOrientations (allOrientations),
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masterScaleFactor ((float) getDefaultMasterScale())
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{
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displays = new Displays (*this);
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}
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Desktop::~Desktop()
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{
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setScreenSaverEnabled (true);
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jassert (instance == this);
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instance = nullptr;
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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()
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{
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if (instance == nullptr)
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instance = new Desktop();
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return *instance;
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}
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Desktop* Desktop::instance = nullptr;
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//==============================================================================
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int Desktop::getNumComponents() const noexcept
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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 noexcept
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{
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return desktopComponents [index];
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}
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Component* Desktop::findComponentAt (Point<int> screenPosition) 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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if (c->isVisible())
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{
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const Point<int> relative (c->getLocalPoint (nullptr, screenPosition));
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if (c->contains (relative))
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return c->getComponentAt (relative);
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}
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}
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return nullptr;
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}
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//==============================================================================
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LookAndFeel& Desktop::getDefaultLookAndFeel() noexcept
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{
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if (currentLookAndFeel == nullptr)
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{
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if (defaultLookAndFeel == nullptr)
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defaultLookAndFeel = new LookAndFeel_V2();
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currentLookAndFeel = defaultLookAndFeel;
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}
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return *currentLookAndFeel;
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}
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void Desktop::setDefaultLookAndFeel (LookAndFeel* newDefaultLookAndFeel)
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{
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currentLookAndFeel = newDefaultLookAndFeel;
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for (int i = getNumComponents(); --i >= 0;)
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if (Component* const c = getComponent (i))
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c->sendLookAndFeelChange();
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}
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//==============================================================================
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void Desktop::addDesktopComponent (Component* const c)
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{
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jassert (c != nullptr);
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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)
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{
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desktopComponents.removeFirstMatchingValue (c);
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}
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void Desktop::componentBroughtToFront (Component* const c)
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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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Point<int> Desktop::getMousePosition()
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{
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return getInstance().getMainMouseSource().getScreenPosition();
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}
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void Desktop::setMousePosition (Point<int> newPosition)
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{
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getInstance().getMainMouseSource().setScreenPosition (newPosition);
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}
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Point<int> Desktop::getLastMouseDownPosition()
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{
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return getInstance().getMainMouseSource().getLastMouseDownPosition();
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}
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int Desktop::getMouseButtonClickCounter() const noexcept { return mouseClickCounter; }
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int Desktop::getMouseWheelMoveCounter() const noexcept { return mouseWheelCounter; }
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void Desktop::incrementMouseClickCounter() noexcept { ++mouseClickCounter; }
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void Desktop::incrementMouseWheelCounter() noexcept { ++mouseWheelCounter; }
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const Array<MouseInputSource>& Desktop::getMouseSources() const noexcept { return mouseSources->sourceArray; }
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int Desktop::getNumMouseSources() const noexcept { return mouseSources->sources.size(); }
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int Desktop::getNumDraggingMouseSources() const noexcept { return mouseSources->getNumDraggingMouseSources(); }
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MouseInputSource* Desktop::getMouseSource (int index) const noexcept { return mouseSources->getMouseSource (index); }
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MouseInputSource* Desktop::getDraggingMouseSource (int index) const noexcept { return mouseSources->getDraggingMouseSource (index); }
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MouseInputSource Desktop::getMainMouseSource() const noexcept { return MouseInputSource (mouseSources->sources.getUnchecked(0)); }
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void Desktop::beginDragAutoRepeat (int interval) { mouseSources->beginDragAutoRepeat (interval); }
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//==============================================================================
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void Desktop::addFocusChangeListener (FocusChangeListener* const listener) { focusListeners.add (listener); }
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void Desktop::removeFocusChangeListener (FocusChangeListener* const listener) { focusListeners.remove (listener); }
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void Desktop::triggerFocusCallback() { triggerAsyncUpdate(); }
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void Desktop::handleAsyncUpdate()
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{
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// The component may be deleted during this operation, but we'll use a SafePointer rather than a
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// BailOutChecker so that any remaining listeners will still get a callback (with a null pointer).
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WeakReference<Component> currentFocus (Component::getCurrentlyFocusedComponent());
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focusListeners.call (&FocusChangeListener::globalFocusChanged, currentFocus);
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}
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//==============================================================================
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void Desktop::resetTimer()
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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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lastFakeMouseMove = getMousePosition();
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}
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ListenerList <MouseListener>& Desktop::getMouseListeners()
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{
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resetTimer();
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return mouseListeners;
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}
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void Desktop::addGlobalMouseListener (MouseListener* const listener)
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{
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mouseListeners.add (listener);
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resetTimer();
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}
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void Desktop::removeGlobalMouseListener (MouseListener* const listener)
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{
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mouseListeners.remove (listener);
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resetTimer();
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}
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void Desktop::timerCallback()
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{
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if (lastFakeMouseMove != getMousePosition())
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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.isEmpty())
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{
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startTimer (20);
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lastFakeMouseMove = getMousePosition();
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if (Component* const target = findComponentAt (lastFakeMouseMove))
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{
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Component::BailOutChecker checker (target);
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const Point<int> pos (target->getLocalPoint (nullptr, lastFakeMouseMove));
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const Time now (Time::getCurrentTime());
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const MouseEvent me (getMainMouseSource(), pos, ModifierKeys::getCurrentModifiers(),
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target, target, now, pos, now, 0, false);
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if (me.mods.isAnyMouseButtonDown())
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mouseListeners.callChecked (checker, &MouseListener::mouseDrag, me);
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else
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mouseListeners.callChecked (checker, &MouseListener::mouseMove, me);
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}
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}
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}
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//==============================================================================
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Desktop::Displays::Displays (Desktop& desktop) { init (desktop); }
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Desktop::Displays::~Displays() {}
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const Desktop::Displays::Display& Desktop::Displays::getMainDisplay() const noexcept
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{
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jassert (displays.getReference(0).isMain);
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return displays.getReference(0);
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}
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const Desktop::Displays::Display& Desktop::Displays::getDisplayContaining (Point<int> position) const noexcept
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{
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const Display* best = &displays.getReference(0);
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double bestDistance = 1.0e10;
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for (int i = displays.size(); --i >= 0;)
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{
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const Display& d = displays.getReference(i);
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if (d.totalArea.contains (position))
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{
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best = &d;
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break;
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}
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const double distance = d.totalArea.getCentre().getDistanceFrom (position);
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if (distance < bestDistance)
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{
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bestDistance = distance;
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best = &d;
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}
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}
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return *best;
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}
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RectangleList<int> Desktop::Displays::getRectangleList (bool userAreasOnly) const
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{
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RectangleList<int> rl;
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for (int i = 0; i < displays.size(); ++i)
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{
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const Display& d = displays.getReference(i);
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rl.addWithoutMerging (userAreasOnly ? d.userArea : d.totalArea);
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}
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return rl;
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}
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Rectangle<int> Desktop::Displays::getTotalBounds (bool userAreasOnly) const
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{
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return getRectangleList (userAreasOnly).getBounds();
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}
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bool operator== (const Desktop::Displays::Display& d1, const Desktop::Displays::Display& d2) noexcept;
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bool operator== (const Desktop::Displays::Display& d1, const Desktop::Displays::Display& d2) noexcept
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{
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return d1.userArea == d2.userArea
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&& d1.totalArea == d2.totalArea
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&& d1.scale == d2.scale
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&& d1.isMain == d2.isMain;
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}
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bool operator!= (const Desktop::Displays::Display& d1, const Desktop::Displays::Display& d2) noexcept;
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bool operator!= (const Desktop::Displays::Display& d1, const Desktop::Displays::Display& d2) noexcept
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{
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return ! (d1 == d2);
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}
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void Desktop::Displays::init (Desktop& desktop)
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{
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findDisplays (desktop.getGlobalScaleFactor());
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jassert (displays.size() > 0);
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}
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void Desktop::Displays::refresh()
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{
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Array<Display> oldDisplays;
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oldDisplays.swapWith (displays);
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init (Desktop::getInstance());
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if (oldDisplays != displays)
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{
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for (int i = ComponentPeer::getNumPeers(); --i >= 0;)
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if (ComponentPeer* const peer = ComponentPeer::getPeer (i))
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peer->handleScreenSizeChange();
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}
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}
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//==============================================================================
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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 or remove a component from the desktop while it's still the kiosk component!
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jassert (kioskModeComponent == nullptr || ComponentPeer::getPeerFor (kioskModeComponent) != nullptr);
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if (kioskModeComponent != nullptr)
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{
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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 != nullptr)
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{
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// Only components that are already on the desktop can be put into kiosk mode!
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jassert (ComponentPeer::getPeerFor (kioskModeComponent) != nullptr);
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kioskComponentOriginalBounds = kioskModeComponent->getBounds();
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setKioskComponent (kioskModeComponent, true, allowMenusAndBars);
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}
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}
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}
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//==============================================================================
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void Desktop::setOrientationsEnabled (const int newOrientations)
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{
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// Dodgy set of flags being passed here! Make sure you specify at least one permitted orientation.
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jassert (newOrientations != 0 && (newOrientations & ~allOrientations) == 0);
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allowedOrientations = newOrientations;
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}
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bool Desktop::isOrientationEnabled (const DisplayOrientation orientation) const noexcept
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{
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// Make sure you only pass one valid flag in here...
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jassert (orientation == upright || orientation == upsideDown
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|| orientation == rotatedClockwise || orientation == rotatedAntiClockwise);
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return (allowedOrientations & orientation) != 0;
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}
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void Desktop::setGlobalScaleFactor (float newScaleFactor) noexcept
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{
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if (masterScaleFactor != newScaleFactor)
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{
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masterScaleFactor = newScaleFactor;
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displays->refresh();
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}
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}
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