- initial version

git-svn-id: http://moon:8086/svn/software/trunk/projects/RBM@14 b431acfa-c32f-4a4a-93f1-934dc6c82436
2014-09-24 17:21:29 +00:00
commit 470437eecb
1107 changed files with 428404 additions and 0 deletions
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+/*
+  ==============================================================================
+
+   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.
+
+  ==============================================================================
+*/
+
+class ApplicationCommandTarget::CommandMessage  : public MessageManager::MessageBase
+{
+public:
+    CommandMessage (ApplicationCommandTarget* const target, const InvocationInfo& inf)
+        : owner (target), info (inf)
+    {
+    }
+
+    void messageCallback() override
+    {
+        if (ApplicationCommandTarget* const target = owner)
+            target->tryToInvoke (info, false);
+    }
+
+private:
+    WeakReference<ApplicationCommandTarget> owner;
+    const InvocationInfo info;
+
+    JUCE_DECLARE_NON_COPYABLE (CommandMessage)
+};
+
+//==============================================================================
+ApplicationCommandTarget::ApplicationCommandTarget()
+{
+}
+
+ApplicationCommandTarget::~ApplicationCommandTarget()
+{
+    masterReference.clear();
+}
+
+//==============================================================================
+bool ApplicationCommandTarget::tryToInvoke (const InvocationInfo& info, const bool async)
+{
+    if (isCommandActive (info.commandID))
+    {
+        if (async)
+        {
+            (new CommandMessage (this, info))->post();
+            return true;
+        }
+
+        if (perform (info))
+            return true;
+
+        // Hmm.. your target claimed that it could perform this command, but failed to do so.
+        // If it can't do it at the moment for some reason, it should clear the 'isActive' flag
+        // when it returns the command's info.
+        jassertfalse;
+    }
+
+    return false;
+}
+
+ApplicationCommandTarget* ApplicationCommandTarget::findFirstTargetParentComponent()
+{
+    if (Component* const c = dynamic_cast <Component*> (this))
+        return c->findParentComponentOfClass<ApplicationCommandTarget>();
+
+    return nullptr;
+}
+
+ApplicationCommandTarget* ApplicationCommandTarget::getTargetForCommand (const CommandID commandID)
+{
+    ApplicationCommandTarget* target = this;
+    int depth = 0;
+
+    while (target != nullptr)
+    {
+        Array<CommandID> commandIDs;
+        target->getAllCommands (commandIDs);
+
+        if (commandIDs.contains (commandID))
+            return target;
+
+        target = target->getNextCommandTarget();
+
+        ++depth;
+        jassert (depth < 100); // could be a recursive command chain??
+        jassert (target != this); // definitely a recursive command chain!
+
+        if (depth > 100 || target == this)
+            break;
+    }
+
+    if (target == nullptr)
+    {
+        target = JUCEApplication::getInstance();
+
+        if (target != nullptr)
+        {
+            Array<CommandID> commandIDs;
+            target->getAllCommands (commandIDs);
+
+            if (commandIDs.contains (commandID))
+                return target;
+        }
+    }
+
+    return nullptr;
+}
+
+bool ApplicationCommandTarget::isCommandActive (const CommandID commandID)
+{
+    ApplicationCommandInfo info (commandID);
+    info.flags = ApplicationCommandInfo::isDisabled;
+
+    getCommandInfo (commandID, info);
+
+    return (info.flags & ApplicationCommandInfo::isDisabled) == 0;
+}
+
+//==============================================================================
+bool ApplicationCommandTarget::invoke (const InvocationInfo& info, const bool async)
+{
+    ApplicationCommandTarget* target = this;
+    int depth = 0;
+
+    while (target != nullptr)
+    {
+        if (target->tryToInvoke (info, async))
+            return true;
+
+        target = target->getNextCommandTarget();
+
+        ++depth;
+        jassert (depth < 100); // could be a recursive command chain??
+        jassert (target != this); // definitely a recursive command chain!
+
+        if (depth > 100 || target == this)
+            break;
+    }
+
+    if (target == nullptr)
+    {
+        target = JUCEApplication::getInstance();
+
+        if (target != nullptr)
+            return target->tryToInvoke (info, async);
+    }
+
+    return false;
+}
+
+bool ApplicationCommandTarget::invokeDirectly (const CommandID commandID, const bool asynchronously)
+{
+    ApplicationCommandTarget::InvocationInfo info (commandID);
+    info.invocationMethod = ApplicationCommandTarget::InvocationInfo::direct;
+
+    return invoke (info, asynchronously);
+}
+
+//==============================================================================
+ApplicationCommandTarget::InvocationInfo::InvocationInfo (const CommandID command)
+    : commandID (command),
+      commandFlags (0),
+      invocationMethod (direct),
+      originatingComponent (nullptr),
+      isKeyDown (false),
+      millisecsSinceKeyPressed (0)
+{
+}