src/apps/cortex/TipManager/TipView.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 // TipView.h
  33 // * PURPOSE
  34 //   Provide a basic, extensible 'ToolTip' view, designed
  35 //   to be hosted by a floating window (TipWindow).
  36 // * HISTORY
  37 //   e.moon             20oct99         multi-line support
  38 //   e.moon             17oct99         Begun.
  39
  40 #ifndef __TipView_H__
  41 #define __TipView_H__
  42
  43 #include <Font.h>
  44 #include <String.h>
  45 #include <View.h>
  46
  47 #include <vector>
  48
  49 #include "cortex_defs.h"
  50 __BEGIN_CORTEX_NAMESPACE
  51
  52 class TipWindow;
  53
  54 class TipView :
  55         public  BView {
  56         typedef BView _inherited;
  57
  58 public:                                                                                 // *** dtor/ctors
  59         virtual ~TipView();
  60         TipView();
  61
  62 public:                                                                                 // *** operations
  63
  64         // if attached to a BWindow, the window must be locked
  65         virtual void setText(
  66                 const char*                                                     text);
  67
  68 public:                                                                                 // *** BView
  69
  70         virtual void Draw(
  71                 BRect                                                                           updateRect);
  72
  73         virtual void FrameResized(
  74                 float                                                                           width,
  75                 float                                                                           height);
  76
  77         virtual void GetPreferredSize(
  78                 float*                                                                  outWidth,
  79                 float*                                                                  outHeight);
  80
  81 private:                                                                                // implementation
  82         BString                                                                         m_text;
  83         BPoint                                                                          m_offset;
  84
  85         BFont                                                                                   m_font;
  86         font_height                                                             m_fontHeight;
  87
  88         rgb_color                                                                       m_textColor;
  89         rgb_color                                                                       m_borderLoColor;
  90         rgb_color                                                                       m_borderHiColor;
  91         rgb_color                                                                       m_viewColor;
  92
  93
  94         typedef std::vector<int32> line_set;
  95         line_set                                                                        m_lineSet;
  96
  97 private:
  98         static const float                              s_xPad;
  99         static const float                              s_yPad;
 100
 101         void _initColors();
 102         void _initFont();
 103         void _updateLayout(
 104                 float                                                                           width,
 105                 float                                                                           height);
 106
 107         void _setText(
 108                 const char*                                                     text);
 109
 110         float _maxTextWidth();
 111         float _textHeight();
 112 };
 113
 114 __END_CORTEX_NAMESPACE
 115 #endif /*__TipView_H__*/