- port to minGw
git-svn-id: http://moon:8086/svn/software/trunk/projects/JaySynth@235 b431acfa-c32f-4a4a-93f1-934dc6c82436
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/*
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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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#ifndef JUCE_MAC_CARBONVIEWWRAPPERCOMPONENT_H_INCLUDED
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#define JUCE_MAC_CARBONVIEWWRAPPERCOMPONENT_H_INCLUDED
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//==============================================================================
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/**
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Creates a floating carbon window that can be used to hold a carbon UI.
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This is a handy class that's designed to be inlined where needed, e.g.
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in the audio plugin hosting code.
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*/
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class CarbonViewWrapperComponent : public Component,
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public ComponentMovementWatcher,
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public Timer
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{
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public:
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CarbonViewWrapperComponent()
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: ComponentMovementWatcher (this),
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keepPluginWindowWhenHidden (false),
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wrapperWindow (0),
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carbonWindow (0),
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embeddedView (0),
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recursiveResize (false),
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repaintChildOnCreation (true)
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{
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}
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~CarbonViewWrapperComponent()
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{
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jassert (embeddedView == 0); // must call deleteWindow() in the subclass's destructor!
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}
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virtual HIViewRef attachView (WindowRef windowRef, HIViewRef rootView) = 0;
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virtual void removeView (HIViewRef embeddedView) = 0;
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virtual void handleMouseDown (int, int) {}
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virtual void handlePaint() {}
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virtual bool getEmbeddedViewSize (int& w, int& h)
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{
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if (embeddedView == 0)
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return false;
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HIRect bounds;
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HIViewGetBounds (embeddedView, &bounds);
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w = jmax (1, roundToInt (bounds.size.width));
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h = jmax (1, roundToInt (bounds.size.height));
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return true;
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}
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void createWindow()
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{
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if (wrapperWindow == 0)
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{
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Rect r;
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r.left = (short) getScreenX();
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r.top = (short) getScreenY();
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r.right = (short) (r.left + getWidth());
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r.bottom = (short) (r.top + getHeight());
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CreateNewWindow (kDocumentWindowClass,
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(WindowAttributes) (kWindowStandardHandlerAttribute | kWindowCompositingAttribute
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| kWindowNoShadowAttribute | kWindowNoTitleBarAttribute),
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&r, &wrapperWindow);
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jassert (wrapperWindow != 0);
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if (wrapperWindow == 0)
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return;
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carbonWindow = [[NSWindow alloc] initWithWindowRef: wrapperWindow];
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[getOwnerWindow() addChildWindow: carbonWindow
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ordered: NSWindowAbove];
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embeddedView = attachView (wrapperWindow, HIViewGetRoot (wrapperWindow));
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// Check for the plugin creating its own floating window, and if there is one,
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// we need to reparent it to make it visible..
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if (NSWindow* floatingChildWindow = [[carbonWindow childWindows] objectAtIndex: 0])
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[getOwnerWindow() addChildWindow: floatingChildWindow
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ordered: NSWindowAbove];
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EventTypeSpec windowEventTypes[] =
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{
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{ kEventClassWindow, kEventWindowGetClickActivation },
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{ kEventClassWindow, kEventWindowHandleDeactivate },
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{ kEventClassWindow, kEventWindowBoundsChanging },
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{ kEventClassMouse, kEventMouseDown },
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{ kEventClassMouse, kEventMouseMoved },
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{ kEventClassMouse, kEventMouseDragged },
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{ kEventClassMouse, kEventMouseUp },
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{ kEventClassWindow, kEventWindowDrawContent },
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{ kEventClassWindow, kEventWindowShown },
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{ kEventClassWindow, kEventWindowHidden }
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};
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EventHandlerUPP upp = NewEventHandlerUPP (carbonEventCallback);
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InstallWindowEventHandler (wrapperWindow, upp,
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sizeof (windowEventTypes) / sizeof (EventTypeSpec),
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windowEventTypes, this, &eventHandlerRef);
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setOurSizeToEmbeddedViewSize();
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setEmbeddedWindowToOurSize();
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creationTime = Time::getCurrentTime();
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}
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}
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void deleteWindow()
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{
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removeView (embeddedView);
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embeddedView = 0;
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if (wrapperWindow != 0)
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{
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NSWindow* ownerWindow = getOwnerWindow();
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if ([[ownerWindow childWindows] count] > 0)
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{
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[ownerWindow removeChildWindow: carbonWindow];
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[carbonWindow close];
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}
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RemoveEventHandler (eventHandlerRef);
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DisposeWindow (wrapperWindow);
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wrapperWindow = 0;
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}
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}
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//==============================================================================
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void setOurSizeToEmbeddedViewSize()
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{
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int w, h;
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if (getEmbeddedViewSize (w, h))
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{
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if (w != getWidth() || h != getHeight())
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{
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startTimer (50);
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setSize (w, h);
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if (Component* p = getParentComponent())
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p->setSize (w, h);
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}
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else
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{
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startTimer (jlimit (50, 500, getTimerInterval() + 20));
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}
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}
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else
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{
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stopTimer();
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}
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}
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void setEmbeddedWindowToOurSize()
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{
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if (! recursiveResize)
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{
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recursiveResize = true;
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if (embeddedView != 0)
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{
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HIRect r;
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r.origin.x = 0;
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r.origin.y = 0;
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r.size.width = (float) getWidth();
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r.size.height = (float) getHeight();
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HIViewSetFrame (embeddedView, &r);
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}
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if (wrapperWindow != 0)
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{
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jassert (getTopLevelComponent()->getDesktopScaleFactor() == 1.0f);
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Rectangle<int> screenBounds (getScreenBounds() * Desktop::getInstance().getGlobalScaleFactor());
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Rect wr;
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wr.left = (short) screenBounds.getX();
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wr.top = (short) screenBounds.getY();
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wr.right = (short) screenBounds.getRight();
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wr.bottom = (short) screenBounds.getBottom();
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SetWindowBounds (wrapperWindow, kWindowContentRgn, &wr);
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// This group stuff is mainly a workaround for Mackie plugins like FinalMix..
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WindowGroupRef group = GetWindowGroup (wrapperWindow);
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WindowRef attachedWindow;
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if (GetIndexedWindow (group, 2, kWindowGroupContentsReturnWindows, &attachedWindow) == noErr)
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{
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SelectWindow (attachedWindow);
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ActivateWindow (attachedWindow, TRUE);
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HideWindow (wrapperWindow);
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}
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ShowWindow (wrapperWindow);
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}
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recursiveResize = false;
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}
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}
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void componentMovedOrResized (bool /*wasMoved*/, bool /*wasResized*/) override
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{
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setEmbeddedWindowToOurSize();
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}
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// (overridden to intercept movements of the top-level window)
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void componentMovedOrResized (Component& component, bool wasMoved, bool wasResized) override
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{
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ComponentMovementWatcher::componentMovedOrResized (component, wasMoved, wasResized);
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if (&component == getTopLevelComponent())
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setEmbeddedWindowToOurSize();
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}
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void componentPeerChanged() override
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{
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deleteWindow();
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createWindow();
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}
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void componentVisibilityChanged() override
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{
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if (isShowing())
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createWindow();
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else if (! keepPluginWindowWhenHidden)
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deleteWindow();
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setEmbeddedWindowToOurSize();
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}
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static void recursiveHIViewRepaint (HIViewRef view)
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{
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HIViewSetNeedsDisplay (view, true);
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HIViewRef child = HIViewGetFirstSubview (view);
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while (child != 0)
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{
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recursiveHIViewRepaint (child);
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child = HIViewGetNextView (child);
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}
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}
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void timerCallback() override
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{
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if (isShowing())
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{
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setOurSizeToEmbeddedViewSize();
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// To avoid strange overpainting problems when the UI is first opened, we'll
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// repaint it a few times during the first second that it's on-screen..
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if (repaintChildOnCreation && (Time::getCurrentTime() - creationTime).inMilliseconds() < 1000)
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recursiveHIViewRepaint (HIViewGetRoot (wrapperWindow));
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}
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}
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void setRepaintsChildHIViewWhenCreated (bool b) noexcept
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{
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repaintChildOnCreation = b;
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}
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OSStatus carbonEventHandler (EventHandlerCallRef /*nextHandlerRef*/, EventRef event)
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{
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switch (GetEventKind (event))
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{
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case kEventWindowHandleDeactivate:
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ActivateWindow (wrapperWindow, TRUE);
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return noErr;
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case kEventWindowGetClickActivation:
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{
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getTopLevelComponent()->toFront (false);
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[carbonWindow makeKeyAndOrderFront: nil];
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ClickActivationResult howToHandleClick = kActivateAndHandleClick;
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SetEventParameter (event, kEventParamClickActivation, typeClickActivationResult,
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sizeof (ClickActivationResult), &howToHandleClick);
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if (embeddedView != 0)
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HIViewSetNeedsDisplay (embeddedView, true);
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return noErr;
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}
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}
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return eventNotHandledErr;
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}
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static pascal OSStatus carbonEventCallback (EventHandlerCallRef nextHandlerRef, EventRef event, void* userData)
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{
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return ((CarbonViewWrapperComponent*) userData)->carbonEventHandler (nextHandlerRef, event);
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}
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bool keepPluginWindowWhenHidden;
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protected:
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WindowRef wrapperWindow;
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NSWindow* carbonWindow;
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HIViewRef embeddedView;
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bool recursiveResize, repaintChildOnCreation;
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Time creationTime;
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EventHandlerRef eventHandlerRef;
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NSWindow* getOwnerWindow() const { return [((NSView*) getWindowHandle()) window]; }
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};
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#endif // JUCE_MAC_CARBONVIEWWRAPPERCOMPONENT_H_INCLUDED
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