root/src/apps/cortex/TipManager/TipView.h
/*
 * Copyright (c) 1999-2000, Eric Moon.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions, and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */


// TipView.h
// * PURPOSE
//   Provide a basic, extensible 'ToolTip' view, designed
//   to be hosted by a floating window (TipWindow).
// * HISTORY
//   e.moon             20oct99         multi-line support
//   e.moon             17oct99         Begun.

#ifndef __TipView_H__
#define __TipView_H__

#include <Font.h>
#include <String.h>
#include <View.h>

#include <vector>

#include "cortex_defs.h"
__BEGIN_CORTEX_NAMESPACE

class TipWindow;

class TipView :
        public  BView {
        typedef BView _inherited;
        
public:                                                                                 // *** dtor/ctors
        virtual ~TipView();
        TipView();

public:                                                                                 // *** operations

        // if attached to a BWindow, the window must be locked
        virtual void setText(
                const char*                                                     text);
                
public:                                                                                 // *** BView

        virtual void Draw(
                BRect                                                                           updateRect);

        virtual void FrameResized(
                float                                                                           width,
                float                                                                           height);
                
        virtual void GetPreferredSize(
                float*                                                                  outWidth,
                float*                                                                  outHeight);

private:                                                                                // implementation
        BString                                                                         m_text;
        BPoint                                                                          m_offset;

        BFont                                                                                   m_font;
        font_height                                                             m_fontHeight;
        
        rgb_color                                                                       m_textColor;
        rgb_color                                                                       m_borderLoColor;
        rgb_color                                                                       m_borderHiColor;
        rgb_color                                                                       m_viewColor;


        typedef std::vector<int32> line_set;
        line_set                                                                        m_lineSet;

private:
        static const float                              s_xPad;
        static const float                              s_yPad;

        void _initColors();
        void _initFont();
        void _updateLayout(
                float                                                                           width,
                float                                                                           height);
        
        void _setText(
                const char*                                                     text);
                
        float _maxTextWidth();
        float _textHeight();
};

__END_CORTEX_NAMESPACE
#endif /*__TipView_H__*/