src/apps/cortex/DiagramView/DiagramBox.h

   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 // DiagramBox.h (Cortex/DiagramView.h)
  33 //
  34 // * HISTORY
  35 //   c.lenz             25sep99         Begun
  36 //
  37 #ifndef DIAGRAM_BOX_H
  38 #define DIAGRAM_BOX_H
  39
  40 #include "cortex_defs.h"
  41 #include "DiagramItem.h"
  42 #include "DiagramItemGroup.h"
  43
  44 #include <Region.h>
  45 #include <Window.h>
  46
  47
  48 __BEGIN_CORTEX_NAMESPACE
  49
  50
  51 class DiagramBox : public DiagramItem, public DiagramItemGroup {
  52         public:
  53                 DiagramBox(BRect frame, uint32 flags = 0);
  54                 virtual ~DiagramBox();
  55
  56                 virtual void DrawBox() = 0;
  57                         // a hook functions that
  58                         // is called from Draw() to do the actual drawing
  59
  60                 // derived from DiagramItemGroup
  61
  62                 virtual bool AddItem(DiagramItem *item);
  63                 virtual bool RemoveItem(DiagramItem *item);
  64
  65                 // derived from DiagramItem
  66
  67                 // returns the Boxes frame rectangle
  68                 BRect Frame() const
  69                 {
  70                         return fFrame;
  71                 }
  72
  73                 void Draw(BRect updateRect);
  74
  75                 virtual void MouseDown(BPoint point, uint32 buttons, uint32 clicks);
  76                 virtual void MouseOver(BPoint point, uint32 transit);
  77
  78                 virtual void MessageDragged(BPoint point, uint32 transit, const BMessage *message);
  79                 virtual void MessageDropped(BPoint point, BMessage *message);
  80
  81                 void MoveBy(float x, float y, BRegion *updateRegion);
  82                 virtual void ResizeBy(float horizontal, float vertical);
  83
  84                 enum flag_t {
  85                         M_DRAW_UNDER_ENDPOINTS = 0x1
  86                 };
  87
  88         private:
  89                 void _SetOwner(DiagramView *owner);
  90
  91         private:
  92                 BRect fFrame;
  93                         // the boxes' frame rectangle
  94
  95                 // flags:
  96                 //      M_DRAW_UNDER_ENDPOINTS -  don't remove EndPoint frames from
  97                 //                                                      the clipping region
  98                 uint32 fFlags;
  99 };
 100
 101 __END_CORTEX_NAMESPACE
 102
 103 #endif  // DIAGRAM_BOX_H