juce/source/extras/audio plugin host/Source/GraphEditorPanel.h

   1 /*
   2   ==============================================================================
   3
   4    This file is part of the JUCE library - "Jules' Utility Class Extensions"
   5    Copyright 2004-9 by Raw Material Software Ltd.
   6
   7   ------------------------------------------------------------------------------
   8
   9    JUCE can be redistributed and/or modified under the terms of the GNU General
  10    Public License (Version 2), as published by the Free Software Foundation.
  11    A copy of the license is included in the JUCE distribution, or can be found
  12    online at www.gnu.org/licenses.
  13
  14    JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
  15    WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
  16    A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  17
  18   ------------------------------------------------------------------------------
  19
  20    To release a closed-source product which uses JUCE, commercial licenses are
  21    available: visit www.rawmaterialsoftware.com/juce for more information.
  22
  23   ==============================================================================
  24 */
  25
  26 #ifndef __JUCE_FILTERGRAPHEDITOR_JUCEHEADER__
  27 #define __JUCE_FILTERGRAPHEDITOR_JUCEHEADER__
  28
  29 #include "FilterGraph.h"
  30
  31 class FilterComponent;
  32 class ConnectorComponent;
  33 class PinComponent;
  34
  35
  36 //==============================================================================
  37 /**
  38     A panel that displays and edits a FilterGraph.
  39 */
  40 class GraphEditorPanel   : public Component,
  41                            public ChangeListener
  42 {
  43 public:
  44     GraphEditorPanel (FilterGraph& graph);
  45     ~GraphEditorPanel();
  46
  47     void paint (Graphics& g);
  48     void mouseDown (const MouseEvent& e);
  49
  50     void createNewPlugin (const PluginDescription* desc, int x, int y);
  51
  52     FilterComponent* getComponentForFilter (const uint32 filterID) const;
  53     ConnectorComponent* getComponentForConnection (const AudioProcessorGraph::Connection& conn) const;
  54     PinComponent* findPinAt (const int x, const int y) const;
  55
  56     void resized();
  57     void changeListenerCallback (ChangeBroadcaster*);
  58     void updateComponents();
  59
  60     //==============================================================================
  61     void beginConnectorDrag (const uint32 sourceFilterID, const int sourceFilterChannel,
  62                              const uint32 destFilterID, const int destFilterChannel,
  63                              const MouseEvent& e);
  64     void dragConnector (const MouseEvent& e);
  65     void endDraggingConnector (const MouseEvent& e);
  66
  67     //==============================================================================
  68 private:
  69     FilterGraph& graph;
  70     ConnectorComponent* draggingConnector;
  71
  72     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (GraphEditorPanel);
  73 };
  74
  75
  76 //==============================================================================
  77 /**
  78     A panel that embeds a GraphEditorPanel with a midi keyboard at the bottom.
  79
  80     It also manages the graph itself, and plays it.
  81 */
  82 class GraphDocumentComponent  : public Component
  83 {
  84 public:
  85     //==============================================================================
  86     GraphDocumentComponent (AudioDeviceManager* deviceManager);
  87     ~GraphDocumentComponent();
  88
  89     //==============================================================================
  90     void createNewPlugin (const PluginDescription* desc, int x, int y);
  91
  92     //==============================================================================
  93     FilterGraph graph;
  94
  95     //==============================================================================
  96     void resized();
  97
  98 private:
  99     //==============================================================================
 100     AudioDeviceManager* deviceManager;
 101     AudioProcessorPlayer graphPlayer;
 102     MidiKeyboardState keyState;
 103
 104     GraphEditorPanel* graphPanel;
 105     Component* keyboardComp;
 106     Component* statusBar;
 107
 108     JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (GraphDocumentComponent);
 109 };
 110
 111 //==============================================================================
 112 /** A desktop window containing a plugin's UI.
 113 */
 114 class PluginWindow  : public DocumentWindow
 115 {
 116     PluginWindow (Component* const uiComp,
 117                   AudioProcessorGraph::Node* owner_,
 118                   const bool isGeneric_);
 119
 120 public:
 121     static PluginWindow* getWindowFor (AudioProcessorGraph::Node* node,
 122                                        bool useGenericView);
 123
 124     static void closeCurrentlyOpenWindowsFor (const uint32 nodeId);
 125
 126     static void closeAllCurrentlyOpenWindows();
 127
 128     ~PluginWindow();
 129
 130     void moved();
 131     void closeButtonPressed();
 132
 133 private:
 134     AudioProcessorGraph::Node* owner;
 135     bool isGeneric;
 136 };
 137
 138 #endif