sdl/PlatformTextBox.h

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//* -*- mode:C++; tab-width:4; c-basic-offset:4; indent-tabs-mode:nil -*- */
//    Name:       src/platforms/sdl/PlatformTextBox.h
//    Purpose:    Contains platform-specific interface for text boxes
//    Author:     Shane T. Mueller, Ph.D.
//    Copyright:  (c) 2003-2026 Shane T. Mueller <smueller@obereed.net>
//    License:    GPL 2
//
//
//
//     This file is part of the PEBL project.
//
//    PEBL is free software; you can redistribute it and/or modify
//    it under the terms of the GNU General Public License as published by
//    the Free Software Foundation; either version 2 of the License, or
//    (at your option) any later version.
//
//    PEBL is distributed in the hope that it will be useful,
//    but WITHOUT ANY WARRANTY; without even the implied warranty of
//    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//    GNU General Public License for more details.
//
//    You should have received a copy of the GNU General Public License
//    along with PEBL; if not, write to the Free Software
//    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#ifndef __PLATFORMTEXTBOX_H__
#define __PLATFORMTEXTBOX_H__
 
#include "PlatformWidget.h"
#include "PlatformFont.h"
#include "../../objects/PTextBox.h"
 
#ifdef PEBL_OSX
#include "SDL.h"
#include "SDL_ttf.h"
#else
#include "SDL.h"
#include "SDL_ttf.h"
#endif
 
#include "../../utility/rc_ptrs.h"
#include "../../base/PEBLObject.h"
#include "../../utility/FormatParser.h"
 
#include <vector>
#include <map>
#include <tuple>
 
 
 
class PlatformTextBox: virtual  public PlatformWidget, virtual public PTextBox
{
public:
    PlatformTextBox(std::string text, counted_ptr<PEBLObjectBase> font, int width, int height);
 
    PlatformTextBox(const PlatformTextBox & textbox);
 
    virtual ~PlatformTextBox();
 
 
    virtual bool RenderText();
 
    virtual bool SetProperty(std::string, Variant v);
    virtual Variant GetProperty(std::string name)const;
    //These need to be overridden because the text needs to be re-rendered when they are called.
    virtual void SetFont(counted_ptr<PEBLObjectBase> font);
    virtual void SetText(std::string  text);
    virtual void SetHeight(int h);
    virtual void SetWidth(int w);
 
    //This needs to be overridden so that it returns a PlatformFont.
    // Return adaptive font if it exists, otherwise return original
    virtual counted_ptr<PEBLObjectBase> GetFont()const{
        return mAdaptiveFontObject.get() ? mAdaptiveFontObject : mFontObject;
    }
 
 
    virtual bool Draw();
    virtual void HandleKeyPress(int keycode, int modkeys, Uint16 unicode);
    virtual void HandleTextInput(std::string input);
    virtual std::string ObjectName()const{return "PlatformTextBox";} ;
    virtual int FindCursorPosition(long int x, long int y);
    virtual void SetEditable(bool val);
    Variant GetLineBreaks();
protected:
 
    virtual std::ostream & SendToStream(std::ostream& out) const;
 
    std::vector<int> mBreaks;  
 
private:
    // Helper to get PlatformFont pointer from counted_ptr when needed
    // Returns adaptive font if it exists, otherwise returns original font
    PlatformFont* GetPlatformFont() const {
        if (mAdaptiveFontObject.get()) {
            return dynamic_cast<PlatformFont*>(mAdaptiveFontObject.get());
        }
        return dynamic_cast<PlatformFont*>(mFontObject.get());
    }
 
    void FindBreaks();
    int FindNextLineBreak(unsigned int curposition);
 
    // Size-aware line breaking for formatted text
    void FindBreaksFormatted(const std::vector<FormatParser::FormatSegment>& segments);
    void FindBreaksInSegment(const FormatParser::FormatSegment& seg,
                            PlatformFont* segFont,
                            int& currentLineWidth,
                            int& currentLineMaxHeight,
                            std::string& currentLineText,
                            int& strippedTextPos,
                            int& totalHeight);
 
    void DrawCursor();
 
    counted_ptr<PEBLObjectBase> mFontObject;
    counted_ptr<PEBLObjectBase> mAdaptiveFontObject;  // Holds adapted font separately to avoid destructor cascade
    std::vector<counted_ptr<PEBLObjectBase>> mIntermediateFonts;  // Keeps intermediate adaptive fonts alive
    bool mIsUTF8;
    std::string mStrippedText;  // For formatted mode: stores text with tags stripped (used for line breaking)
 
};
 
 
 
#endif