- clean working copy for leaving SVN

2022-06-28 19:04:46 +02:00
parent 62a2d47cb3
commit 762b8f0e7d
1966 changed files with 699872 additions and 126 deletions
@@ -0,0 +1,139 @@
+/*
+  ==============================================================================
+
+   This file is part of the JUCE library.
+   Copyright (c) 2013 - Raw Material Software Ltd.
+
+   Permission is granted to use this software under the terms of either:
+   a) the GPL v2 (or any later version)
+   b) the Affero GPL v3
+
+   Details of these licenses can be found at: www.gnu.org/licenses
+
+   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
+   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+   ------------------------------------------------------------------------------
+
+   To release a closed-source product which uses JUCE, commercial licenses are
+   available: visit www.juce.com for more information.
+
+  ==============================================================================
+*/
+
+ComponentMovementWatcher::ComponentMovementWatcher (Component* const comp)
+    : component (comp),
+      lastPeerID (0),
+      reentrant (false),
+      wasShowing (comp->isShowing())
+{
+    jassert (component != nullptr); // can't use this with a null pointer..
+
+    component->addComponentListener (this);
+
+    registerWithParentComps();
+}
+
+ComponentMovementWatcher::~ComponentMovementWatcher()
+{
+    if (component != nullptr)
+        component->removeComponentListener (this);
+
+    unregister();
+}
+
+//==============================================================================
+void ComponentMovementWatcher::componentParentHierarchyChanged (Component&)
+{
+    if (component != nullptr && ! reentrant)
+    {
+        const ScopedValueSetter<bool> setter (reentrant, true);
+
+        ComponentPeer* const peer = component->getPeer();
+        const uint32 peerID = peer != nullptr ? peer->getUniqueID() : 0;
+
+        if (peerID != lastPeerID)
+        {
+            componentPeerChanged();
+
+            if (component == nullptr)
+                return;
+
+            lastPeerID = peerID;
+        }
+
+        unregister();
+        registerWithParentComps();
+
+        componentMovedOrResized (*component, true, true);
+
+        if (component != nullptr)
+            componentVisibilityChanged (*component);
+    }
+}
+
+void ComponentMovementWatcher::componentMovedOrResized (Component&, bool wasMoved, bool wasResized)
+{
+    if (component != nullptr)
+    {
+        if (wasMoved)
+        {
+            Point<int> newPos;
+            Component* const top = component->getTopLevelComponent();
+
+            if (top != component)
+                newPos = top->getLocalPoint (component, Point<int>());
+            else
+                newPos = top->getPosition();
+
+            wasMoved = lastBounds.getPosition() != newPos;
+            lastBounds.setPosition (newPos);
+        }
+
+        wasResized = (lastBounds.getWidth() != component->getWidth() || lastBounds.getHeight() != component->getHeight());
+        lastBounds.setSize (component->getWidth(), component->getHeight());
+
+        if (wasMoved || wasResized)
+            componentMovedOrResized (wasMoved, wasResized);
+    }
+}
+
+void ComponentMovementWatcher::componentBeingDeleted (Component& comp)
+{
+    registeredParentComps.removeFirstMatchingValue (&comp);
+
+    if (component == &comp)
+        unregister();
+}
+
+void ComponentMovementWatcher::componentVisibilityChanged (Component&)
+{
+    if (component != nullptr)
+    {
+        const bool isShowingNow = component->isShowing();
+
+        if (wasShowing != isShowingNow)
+        {
+            wasShowing = isShowingNow;
+            componentVisibilityChanged();
+        }
+    }
+}
+
+void ComponentMovementWatcher::registerWithParentComps()
+{
+    for (Component* p = component->getParentComponent(); p != nullptr; p = p->getParentComponent())
+    {
+        p->addComponentListener (this);
+        registeredParentComps.add (p);
+    }
+}
+
+void ComponentMovementWatcher::unregister()
+{
+    for (int i = registeredParentComps.size(); --i >= 0;)
+        registeredParentComps.getUnchecked(i)->removeComponentListener (this);
+
+    registeredParentComps.clear();
+}