1 /* 2 * Copyright (c) 1999-2000, Eric Moon. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions, and the following disclaimer. 11 * 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions, and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * 3. The name of the author may not be used to endorse or promote products 17 * derived from this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR 20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 21 * OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 23 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 24 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 25 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 26 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 27 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 32 // MediaWire.h 33 // c.lenz 10oct99 34 // 35 // HISTORY 36 // 37 38 #ifndef __MediaWire_H__ 39 #define __MediaWire_H__ 40 41 // DiagramView 42 #include "DiagramWire.h" 43 // NodeManager 44 #include "Connection.h" 45 46 #include "cortex_defs.h" 47 __BEGIN_CORTEX_NAMESPACE 48 49 class MediaJack; 50 51 class MediaWire : 52 public DiagramWire { 53 typedef DiagramWire _inherited; 54 55 public: // *** constans 56 57 // [e.moon 26oct99] moved definition to MediaWire.cpp 58 static const float M_WIRE_OFFSET; 59 60 public: // *** ctor/dtor 61 62 // input and output jack are set connected by this constructor 63 // so be careful to only pass in valid pointers 64 MediaWire( 65 Connection connection, 66 MediaJack *outputJack, 67 MediaJack *inputJack); 68 69 // special constructor used only in drag&drop sessions for 70 // temporary visual indication of the connection process 71 // the isStartPoint specifies if the given EndPoint is 72 // supposed to be treated as start or end point 73 MediaWire( 74 MediaJack *jack, 75 bool isStartPoint); 76 77 virtual ~MediaWire(); 78 79 public: // *** accessors 80 81 Connection connection; 82 83 public: // *** derived from DiagramWire/Item 84 85 // init the cached points and the frame rect 86 virtual void attachedToDiagram(); 87 88 // make sure no tooltip is being displayed for this wire 89 // +++ DOES NOT WORK (yet) 90 virtual void detachedFromDiagram(); 91 92 // calculates and returns the frame rectangle of the wire 93 virtual BRect Frame() const; 94 95 // returns a value > 0.5 for points pretty much close to the 96 // wire 97 virtual float howCloseTo( 98 BPoint point) const; 99 100 // does the actual drawing 101 virtual void drawWire(); 102 103 // displays the context-menu for right-clicks 104 virtual void MouseDown( 105 BPoint point, 106 uint32 buttons, 107 uint32 clicks); 108 109 // changes the mouse cursor and starts a tooltip 110 virtual void MouseOver( 111 BPoint point, 112 uint32 transit); 113 114 // also selects and invalidates the jacks connected by 115 // this wire 116 virtual void selected(); 117 118 // also deselectes and invalidates the jacks connected 119 // by this wire 120 virtual void deselected(); 121 122 // updates the cached start & end points and the frame rect 123 virtual void endPointMoved( 124 DiagramEndPoint *which = 0); 125 126 protected: // *** operations 127 128 // display a popup-menu at given point 129 void showContextMenu( 130 BPoint point); 131 132 private: // *** data members 133 134 BPoint m_startPoint; 135 136 BPoint m_endPoint; 137 138 BPoint m_startOffset; 139 140 BPoint m_endOffset; 141 142 BRect m_frame; 143 }; 144 145 __END_CORTEX_NAMESPACE 146 #endif /* __MediaWire_H__ */ 147