mirror of
https://github.com/juce-framework/JUCE.git
synced 2026-01-27 02:20:05 +00:00
724 lines
23 KiB
C++
724 lines
23 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 "../../../application/juce_Application.h"
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#include "../juce_Component.h"
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#include "../juce_ComponentDeletionWatcher.h"
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#include "../juce_Desktop.h"
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#include "../../../events/juce_MessageManager.h"
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#include "../../../core/juce_Time.h"
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#include "../../../core/juce_Random.h"
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#include "../layout/juce_ComponentBoundsConstrainer.h"
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#include "../mouse/juce_FileDragAndDropTarget.h"
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//#define JUCE_ENABLE_REPAINT_DEBUGGING 1
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//==============================================================================
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static const int fakeMouseMoveMessage = 0x7fff00ff;
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static VoidArray heavyweightPeers;
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//==============================================================================
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ComponentPeer::ComponentPeer (Component* const component_,
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const int styleFlags_) throw()
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: component (component_),
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styleFlags (styleFlags_),
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lastPaintTime (0),
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constrainer (0),
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lastFocusedComponent (0),
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lastDragAndDropCompUnderMouse (0),
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fakeMouseMessageSent (false),
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isWindowMinimised (false)
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{
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heavyweightPeers.add (this);
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}
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ComponentPeer::~ComponentPeer()
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{
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heavyweightPeers.removeValue (this);
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Desktop::getInstance().triggerFocusCallback();
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}
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//==============================================================================
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int ComponentPeer::getNumPeers() throw()
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{
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return heavyweightPeers.size();
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}
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ComponentPeer* ComponentPeer::getPeer (const int index) throw()
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{
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return (ComponentPeer*) heavyweightPeers [index];
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}
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ComponentPeer* ComponentPeer::getPeerFor (const Component* const component) throw()
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{
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for (int i = heavyweightPeers.size(); --i >= 0;)
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{
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ComponentPeer* const peer = (ComponentPeer*) heavyweightPeers.getUnchecked(i);
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if (peer->getComponent() == component)
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return peer;
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}
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return 0;
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}
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bool ComponentPeer::isValidPeer (const ComponentPeer* const peer) throw()
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{
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return heavyweightPeers.contains (const_cast <ComponentPeer*> (peer));
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}
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void ComponentPeer::updateCurrentModifiers() throw()
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{
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ModifierKeys::updateCurrentModifiers();
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}
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//==============================================================================
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void ComponentPeer::handleMouseEnter (int x, int y, const int64 time)
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{
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jassert (component->isValidComponent());
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updateCurrentModifiers();
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Component* c = component->getComponentAt (x, y);
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const ComponentDeletionWatcher deletionChecker (component);
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if (c != Component::componentUnderMouse && Component::componentUnderMouse != 0)
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{
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jassert (Component::componentUnderMouse->isValidComponent());
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const Point<int> relPos (component->relativePositionToOtherComponent (Component::componentUnderMouse, Point<int> (x, y)));
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Component::componentUnderMouse->internalMouseExit (relPos.getX(), relPos.getY(), time);
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Component::componentUnderMouse = 0;
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if (deletionChecker.hasBeenDeleted())
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return;
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c = component->getComponentAt (x, y);
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}
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Component::componentUnderMouse = c;
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if (Component::componentUnderMouse != 0)
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{
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const Point<int> relPos (component->relativePositionToOtherComponent (Component::componentUnderMouse, Point<int> (x, y)));
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Component::componentUnderMouse->internalMouseEnter (relPos.getX(), relPos.getY(), time);
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}
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}
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void ComponentPeer::handleMouseMove (int x, int y, const int64 time)
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{
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jassert (component->isValidComponent());
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updateCurrentModifiers();
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fakeMouseMessageSent = false;
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const ComponentDeletionWatcher deletionChecker (component);
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Component* c = component->getComponentAt (x, y);
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if (c != Component::componentUnderMouse)
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{
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if (Component::componentUnderMouse != 0)
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{
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const Point<int> relPos (component->relativePositionToOtherComponent (Component::componentUnderMouse, Point<int> (x, y)));
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Component::componentUnderMouse->internalMouseExit (relPos.getX(), relPos.getY(), time);
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Component::componentUnderMouse = 0;
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if (deletionChecker.hasBeenDeleted())
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return; // if this window has just been deleted..
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c = component->getComponentAt (x, y);
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}
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Component::componentUnderMouse = c;
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if (c != 0)
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{
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const Point<int> relPos (component->relativePositionToOtherComponent (c, Point<int> (x, y)));
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c->internalMouseEnter (relPos.getX(), relPos.getY(), time);
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if (deletionChecker.hasBeenDeleted())
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return; // if this window has just been deleted..
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}
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}
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if (Component::componentUnderMouse != 0)
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{
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const Point<int> relPos (component->relativePositionToOtherComponent (Component::componentUnderMouse, Point<int> (x, y)));
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Component::componentUnderMouse->internalMouseMove (relPos.getX(), relPos.getY(), time);
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}
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}
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void ComponentPeer::handleMouseDown (int x, int y, const int64 time)
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{
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Desktop::getInstance().incrementMouseClickCounter();
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updateCurrentModifiers();
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if (ModifierKeys::getCurrentModifiers().getNumMouseButtonsDown() == 1)
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{
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Component::componentUnderMouse = component->getComponentAt (x, y);
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if (Component::componentUnderMouse != 0)
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{
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const Point<int> relPos (component->relativePositionToOtherComponent (Component::componentUnderMouse, Point<int> (x, y)));
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Component::componentUnderMouse->internalMouseDown (relPos.getX(), relPos.getY(), time);
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}
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}
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}
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void ComponentPeer::handleMouseDrag (int x, int y, const int64 time)
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{
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updateCurrentModifiers();
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if (Component::componentUnderMouse != 0)
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{
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const Point<int> relPos (component->relativePositionToOtherComponent (Component::componentUnderMouse, Point<int> (x, y)));
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Component::componentUnderMouse->internalMouseDrag (relPos.getX(), relPos.getY(), time);
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}
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}
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void ComponentPeer::handleMouseUp (const int oldModifiers, int x, int y, const int64 time)
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{
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updateCurrentModifiers();
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if (ModifierKeys (oldModifiers).getNumMouseButtonsDown() == 1)
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{
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const ComponentDeletionWatcher deletionChecker (component);
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Component* c = component->getComponentAt (x, y);
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if (c != Component::componentUnderMouse)
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{
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if (Component::componentUnderMouse != 0)
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{
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const Point<int> relPos (component->relativePositionToOtherComponent (Component::componentUnderMouse, Point<int> (x, y)));
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Component::componentUnderMouse->internalMouseUp (oldModifiers, relPos.getX(), relPos.getY(), time);
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if (Component::componentUnderMouse != 0)
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Component::componentUnderMouse->internalMouseExit (relPos.getX(), relPos.getY(), time);
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if (deletionChecker.hasBeenDeleted())
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return;
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c = component->getComponentAt (x, y);
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}
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Component::componentUnderMouse = c;
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if (Component::componentUnderMouse != 0)
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{
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const Point<int> relPos (component->relativePositionToOtherComponent (Component::componentUnderMouse, Point<int> (x, y)));
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Component::componentUnderMouse->internalMouseEnter (relPos.getX(), relPos.getY(), time);
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}
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}
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else
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{
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if (Component::componentUnderMouse != 0)
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{
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const Point<int> relPos (component->relativePositionToOtherComponent (Component::componentUnderMouse, Point<int> (x, y)));
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Component::componentUnderMouse->internalMouseUp (oldModifiers, relPos.getX(), relPos.getY(), time);
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}
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}
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}
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}
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void ComponentPeer::handleMouseExit (int x, int y, const int64 time)
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{
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jassert (component->isValidComponent());
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updateCurrentModifiers();
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if (Component::componentUnderMouse != 0)
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{
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const Point<int> relPos (component->relativePositionToOtherComponent (Component::componentUnderMouse, Point<int> (x, y)));
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Component::componentUnderMouse->internalMouseExit (relPos.getX(), relPos.getY(), time);
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Component::componentUnderMouse = 0;
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}
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}
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void ComponentPeer::handleMouseWheel (const int amountX, const int amountY, const int64 time)
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{
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updateCurrentModifiers();
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if (Component::componentUnderMouse != 0)
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Component::componentUnderMouse->internalMouseWheel (amountX, amountY, time);
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}
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void ComponentPeer::sendFakeMouseMove() throw()
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{
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if ((! fakeMouseMessageSent)
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&& component->flags.hasHeavyweightPeerFlag
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&& ! ModifierKeys::getCurrentModifiers().isAnyMouseButtonDown())
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{
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if (! isMinimised())
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{
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int realX, realY, realW, realH;
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getBounds (realX, realY, realW, realH);
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component->bounds_.setBounds (realX, realY, realW, realH);
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}
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const Point<int> pos (component->getMouseXYRelative());
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if (((unsigned int) pos.getX()) < (unsigned int) component->getWidth()
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&& ((unsigned int) pos.getY()) < (unsigned int) component->getHeight()
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&& contains (pos.getX(), pos.getY(), false))
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{
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postMessage (new Message (fakeMouseMoveMessage, pos.getX(), pos.getY(), 0));
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}
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fakeMouseMessageSent = true;
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}
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}
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void ComponentPeer::handleMessage (const Message& message)
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{
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if (message.intParameter1 == fakeMouseMoveMessage)
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{
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if (! ModifierKeys::getCurrentModifiers().isAnyMouseButtonDown())
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handleMouseMove (message.intParameter2,
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message.intParameter3,
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Time::currentTimeMillis());
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}
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}
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//==============================================================================
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void ComponentPeer::handlePaint (LowLevelGraphicsContext& contextToPaintTo)
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{
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Graphics g (&contextToPaintTo);
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#if JUCE_ENABLE_REPAINT_DEBUGGING
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g.saveState();
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#endif
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JUCE_TRY
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{
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component->paintEntireComponent (g);
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}
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JUCE_CATCH_EXCEPTION
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#if JUCE_ENABLE_REPAINT_DEBUGGING
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// enabling this code will fill all areas that get repainted with a colour overlay, to show
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// clearly when things are being repainted.
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{
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g.restoreState();
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g.fillAll (Colour ((uint8) Random::getSystemRandom().nextInt (255),
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(uint8) Random::getSystemRandom().nextInt (255),
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(uint8) Random::getSystemRandom().nextInt (255),
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(uint8) 0x50));
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}
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#endif
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}
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bool ComponentPeer::handleKeyPress (const int keyCode,
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const juce_wchar textCharacter)
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{
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updateCurrentModifiers();
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Component* target = Component::currentlyFocusedComponent->isValidComponent()
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? Component::currentlyFocusedComponent
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: component;
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if (target->isCurrentlyBlockedByAnotherModalComponent())
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{
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Component* const currentModalComp = Component::getCurrentlyModalComponent();
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if (currentModalComp != 0)
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target = currentModalComp;
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}
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const KeyPress keyInfo (keyCode,
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ModifierKeys::getCurrentModifiers().getRawFlags()
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& ModifierKeys::allKeyboardModifiers,
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textCharacter);
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bool keyWasUsed = false;
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while (target != 0)
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{
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const ComponentDeletionWatcher deletionChecker (target);
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if (target->keyListeners_ != 0)
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{
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for (int i = target->keyListeners_->size(); --i >= 0;)
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{
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keyWasUsed = ((KeyListener*) target->keyListeners_->getUnchecked(i))->keyPressed (keyInfo, target);
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if (keyWasUsed || deletionChecker.hasBeenDeleted())
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return keyWasUsed;
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i = jmin (i, target->keyListeners_->size());
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}
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}
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keyWasUsed = target->keyPressed (keyInfo);
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if (keyWasUsed || deletionChecker.hasBeenDeleted())
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break;
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if (keyInfo.isKeyCode (KeyPress::tabKey) && Component::getCurrentlyFocusedComponent() != 0)
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{
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Component* const currentlyFocused = Component::getCurrentlyFocusedComponent();
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currentlyFocused->moveKeyboardFocusToSibling (! keyInfo.getModifiers().isShiftDown());
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keyWasUsed = (currentlyFocused != Component::getCurrentlyFocusedComponent());
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break;
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}
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target = target->parentComponent_;
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}
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return keyWasUsed;
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}
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bool ComponentPeer::handleKeyUpOrDown (const bool isKeyDown)
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{
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updateCurrentModifiers();
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Component* target = Component::currentlyFocusedComponent->isValidComponent()
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? Component::currentlyFocusedComponent
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: component;
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if (target->isCurrentlyBlockedByAnotherModalComponent())
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{
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Component* const currentModalComp = Component::getCurrentlyModalComponent();
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if (currentModalComp != 0)
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target = currentModalComp;
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}
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bool keyWasUsed = false;
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while (target != 0)
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{
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const ComponentDeletionWatcher deletionChecker (target);
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keyWasUsed = target->keyStateChanged (isKeyDown);
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if (keyWasUsed || deletionChecker.hasBeenDeleted())
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break;
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if (target->keyListeners_ != 0)
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{
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for (int i = target->keyListeners_->size(); --i >= 0;)
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{
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keyWasUsed = ((KeyListener*) target->keyListeners_->getUnchecked(i))->keyStateChanged (isKeyDown, target);
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if (keyWasUsed || deletionChecker.hasBeenDeleted())
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return keyWasUsed;
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i = jmin (i, target->keyListeners_->size());
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}
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}
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target = target->parentComponent_;
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}
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return keyWasUsed;
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}
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void ComponentPeer::handleModifierKeysChange()
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{
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updateCurrentModifiers();
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Component* target = Component::getComponentUnderMouse();
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if (target == 0)
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target = Component::getCurrentlyFocusedComponent();
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if (target == 0)
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target = component;
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if (target->isValidComponent())
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target->internalModifierKeysChanged();
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}
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//==============================================================================
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void ComponentPeer::handleBroughtToFront()
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{
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updateCurrentModifiers();
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if (component != 0)
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component->internalBroughtToFront();
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}
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void ComponentPeer::setConstrainer (ComponentBoundsConstrainer* const newConstrainer) throw()
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{
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constrainer = newConstrainer;
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}
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void ComponentPeer::handleMovedOrResized()
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{
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jassert (component->isValidComponent());
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updateCurrentModifiers();
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const bool nowMinimised = isMinimised();
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if (component->flags.hasHeavyweightPeerFlag && ! nowMinimised)
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{
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const ComponentDeletionWatcher deletionChecker (component);
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int realX, realY, realW, realH;
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getBounds (realX, realY, realW, realH);
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const bool wasMoved = (component->getX() != realX || component->getY() != realY);
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const bool wasResized = (component->getWidth() != realW || component->getHeight() != realH);
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if (wasMoved || wasResized)
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{
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component->bounds_.setBounds (realX, realY, realW, realH);
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if (wasResized)
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component->repaint();
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component->sendMovedResizedMessages (wasMoved, wasResized);
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if (deletionChecker.hasBeenDeleted())
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return;
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}
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}
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if (isWindowMinimised != nowMinimised)
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{
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isWindowMinimised = nowMinimised;
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component->minimisationStateChanged (nowMinimised);
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component->sendVisibilityChangeMessage();
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}
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if (! isFullScreen())
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lastNonFullscreenBounds = component->getBounds();
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}
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void ComponentPeer::handleFocusGain()
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{
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updateCurrentModifiers();
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if (component->isParentOf (lastFocusedComponent))
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{
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Component::currentlyFocusedComponent = lastFocusedComponent;
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Desktop::getInstance().triggerFocusCallback();
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lastFocusedComponent->internalFocusGain (Component::focusChangedDirectly);
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}
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else
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{
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if (! component->isCurrentlyBlockedByAnotherModalComponent())
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component->grabKeyboardFocus();
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else
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Component::bringModalComponentToFront();
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}
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}
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void ComponentPeer::handleFocusLoss()
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{
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updateCurrentModifiers();
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if (component->hasKeyboardFocus (true))
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{
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lastFocusedComponent = Component::currentlyFocusedComponent;
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if (lastFocusedComponent != 0)
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{
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Component::currentlyFocusedComponent = 0;
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Desktop::getInstance().triggerFocusCallback();
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lastFocusedComponent->internalFocusLoss (Component::focusChangedByMouseClick);
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}
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}
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}
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Component* ComponentPeer::getLastFocusedSubcomponent() const throw()
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{
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return (component->isParentOf (lastFocusedComponent) && lastFocusedComponent->isShowing())
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? lastFocusedComponent
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: component;
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}
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void ComponentPeer::handleScreenSizeChange()
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{
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updateCurrentModifiers();
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component->parentSizeChanged();
|
|
handleMovedOrResized();
|
|
}
|
|
|
|
void ComponentPeer::setNonFullScreenBounds (const Rectangle<int>& newBounds) throw()
|
|
{
|
|
lastNonFullscreenBounds = newBounds;
|
|
}
|
|
|
|
const Rectangle<int>& ComponentPeer::getNonFullScreenBounds() const throw()
|
|
{
|
|
return lastNonFullscreenBounds;
|
|
}
|
|
|
|
//==============================================================================
|
|
static FileDragAndDropTarget* findDragAndDropTarget (Component* c,
|
|
const StringArray& files,
|
|
FileDragAndDropTarget* const lastOne)
|
|
{
|
|
while (c != 0)
|
|
{
|
|
FileDragAndDropTarget* const t = dynamic_cast <FileDragAndDropTarget*> (c);
|
|
|
|
if (t != 0 && (t == lastOne || t->isInterestedInFileDrag (files)))
|
|
return t;
|
|
|
|
c = c->getParentComponent();
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
void ComponentPeer::handleFileDragMove (const StringArray& files, int x, int y)
|
|
{
|
|
updateCurrentModifiers();
|
|
|
|
FileDragAndDropTarget* lastTarget = 0;
|
|
|
|
if (dragAndDropTargetComponent != 0 && ! dragAndDropTargetComponent->hasBeenDeleted())
|
|
lastTarget = const_cast <FileDragAndDropTarget*> (dynamic_cast <const FileDragAndDropTarget*> (dragAndDropTargetComponent->getComponent()));
|
|
|
|
FileDragAndDropTarget* newTarget = 0;
|
|
|
|
Component* const compUnderMouse = component->getComponentAt (x, y);
|
|
|
|
if (compUnderMouse != lastDragAndDropCompUnderMouse)
|
|
{
|
|
lastDragAndDropCompUnderMouse = compUnderMouse;
|
|
newTarget = findDragAndDropTarget (compUnderMouse, files, lastTarget);
|
|
|
|
if (newTarget != lastTarget)
|
|
{
|
|
if (lastTarget != 0)
|
|
lastTarget->fileDragExit (files);
|
|
|
|
dragAndDropTargetComponent = 0;
|
|
|
|
if (newTarget != 0)
|
|
{
|
|
Component* const targetComp = dynamic_cast <Component*> (newTarget);
|
|
const Point<int> pos (component->relativePositionToOtherComponent (targetComp, Point<int> (x, y)));
|
|
|
|
dragAndDropTargetComponent = new ComponentDeletionWatcher (dynamic_cast <Component*> (newTarget));
|
|
newTarget->fileDragEnter (files, pos.getX(), pos.getY());
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
newTarget = lastTarget;
|
|
}
|
|
|
|
if (newTarget != 0)
|
|
{
|
|
Component* const targetComp = dynamic_cast <Component*> (newTarget);
|
|
const Point<int> pos (component->relativePositionToOtherComponent (targetComp, Point<int> (x, y)));
|
|
|
|
newTarget->fileDragMove (files, pos.getX(), pos.getY());
|
|
}
|
|
}
|
|
|
|
void ComponentPeer::handleFileDragExit (const StringArray& files)
|
|
{
|
|
handleFileDragMove (files, -1, -1);
|
|
|
|
jassert (dragAndDropTargetComponent == 0);
|
|
lastDragAndDropCompUnderMouse = 0;
|
|
}
|
|
|
|
void ComponentPeer::handleFileDragDrop (const StringArray& files, int x, int y)
|
|
{
|
|
handleFileDragMove (files, x, y);
|
|
|
|
if (dragAndDropTargetComponent != 0 && ! dragAndDropTargetComponent->hasBeenDeleted())
|
|
{
|
|
FileDragAndDropTarget* const target = const_cast <FileDragAndDropTarget*> (dynamic_cast <const FileDragAndDropTarget*> (dragAndDropTargetComponent->getComponent()));
|
|
|
|
dragAndDropTargetComponent = 0;
|
|
lastDragAndDropCompUnderMouse = 0;
|
|
|
|
if (target != 0)
|
|
{
|
|
Component* const targetComp = dynamic_cast <Component*> (target);
|
|
|
|
if (targetComp->isCurrentlyBlockedByAnotherModalComponent())
|
|
{
|
|
targetComp->internalModalInputAttempt();
|
|
|
|
if (targetComp->isCurrentlyBlockedByAnotherModalComponent())
|
|
return;
|
|
}
|
|
|
|
const Point<int> pos (component->relativePositionToOtherComponent (targetComp, Point<int> (x, y)));
|
|
target->filesDropped (files, pos.getX(), pos.getY());
|
|
}
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
void ComponentPeer::handleUserClosingWindow()
|
|
{
|
|
updateCurrentModifiers();
|
|
|
|
component->userTriedToCloseWindow();
|
|
}
|
|
|
|
//==============================================================================
|
|
void ComponentPeer::bringModalComponentToFront()
|
|
{
|
|
Component::bringModalComponentToFront();
|
|
}
|
|
|
|
//==============================================================================
|
|
void ComponentPeer::clearMaskedRegion() throw()
|
|
{
|
|
maskedRegion.clear();
|
|
}
|
|
|
|
void ComponentPeer::addMaskedRegion (int x, int y, int w, int h) throw()
|
|
{
|
|
maskedRegion.add (x, y, w, h);
|
|
}
|
|
|
|
//==============================================================================
|
|
const StringArray ComponentPeer::getAvailableRenderingEngines() throw()
|
|
{
|
|
StringArray s;
|
|
s.add ("Software Renderer");
|
|
return s;
|
|
}
|
|
|
|
int ComponentPeer::getCurrentRenderingEngine() throw()
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void ComponentPeer::setCurrentRenderingEngine (int /*index*/) throw()
|
|
{
|
|
}
|
|
|
|
END_JUCE_NAMESPACE
|